WO2020119654A1 - 一种快连卡箍 - Google Patents

一种快连卡箍 Download PDF

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Publication number
WO2020119654A1
WO2020119654A1 PCT/CN2019/124153 CN2019124153W WO2020119654A1 WO 2020119654 A1 WO2020119654 A1 WO 2020119654A1 CN 2019124153 W CN2019124153 W CN 2019124153W WO 2020119654 A1 WO2020119654 A1 WO 2020119654A1
Authority
WO
WIPO (PCT)
Prior art keywords
clamp body
ring
plug
groove
quick
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2019/124153
Other languages
English (en)
French (fr)
Inventor
张同虎
潘成飞
李明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Lede Machinery CoLtd
Original Assignee
Shandong Lede Machinery CoLtd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong Lede Machinery CoLtd filed Critical Shandong Lede Machinery CoLtd
Priority to KR1020217014419A priority Critical patent/KR102642741B1/ko
Priority to PL19895499.2T priority patent/PL3896323T3/pl
Priority to ES19895499T priority patent/ES2942357T3/es
Priority to EP19895499.2A priority patent/EP3896323B1/en
Publication of WO2020119654A1 publication Critical patent/WO2020119654A1/zh
Priority to US17/317,492 priority patent/US20210262595A1/en
Anticipated expiration legal-status Critical
Priority to US18/532,902 priority patent/US12234929B2/en
Ceased legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L17/00Joints with packing adapted to sealing by fluid pressure
    • F16L17/02Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket
    • F16L17/04Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket with longitudinally split or divided sleeve
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/02Sealings between relatively-stationary surfaces
    • F16J15/06Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/062Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces characterised by the geometry of the seat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/02Sealings between relatively-stationary surfaces
    • F16J15/06Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F16J15/104Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L17/00Joints with packing adapted to sealing by fluid pressure
    • F16L17/02Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L21/00Joints with sleeve or socket
    • F16L21/02Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
    • F16L21/03Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings placed in the socket before connection
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L21/00Joints with sleeve or socket
    • F16L21/06Joints with sleeve or socket with a divided sleeve or ring clamping around the pipe ends
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L21/00Joints with sleeve or socket
    • F16L21/06Joints with sleeve or socket with a divided sleeve or ring clamping around the pipe ends
    • F16L21/065Joints with sleeve or socket with a divided sleeve or ring clamping around the pipe ends tightened by tangentially-arranged threaded pins
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L17/00Joints with packing adapted to sealing by fluid pressure
    • F16L17/02Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket
    • F16L17/025Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket the sealing rings having radially directed ribs

Definitions

  • the invention relates to a pipe connection clamp, in particular to a quick connection clamp.
  • the existing quick-connecting clamp includes an upper clamp body and a lower clamp body, both of which are semi-annular.
  • the inner surface of the upper clamp body is spaced radially inwardly and extends along the circumferential direction of the inner surface Two upper convex ribs, the inner ring surface is provided with upper sealing ring grooves between the upper convex ribs;
  • the inner ring surface of the lower clamp body is provided with radial inner convex at intervals and along the inner ring
  • Two lower ribs extending in the circumferential direction of the surface, the inner ring surface is provided with a lower seal ring groove between the lower ribs; both ends of the upper clamp body and the lower clamp body are provided with protrusions Ears, the upper clamp body and the lower clamp body are connected together end to end by bolts fitted to the lugs, and the upper and lower clamp bodies are provided with upper and lower sealing ring grooves Sealing ring inside
  • the quick coupling clamp of the above structure mainly has the following defects: First, both ends are connected by bolts, when the upper clamp body and the lower clamp body are assembled, and when the clamp is connected to the pipeline, both bolts need to be newly entered Rotation, thus reducing the assembly efficiency and the efficiency of connection and fastening of the pipeline. Second, the distance between the groove bottom of the upper seal ring groove and the inner ring surface of the upper rib is the upper groove depth. The depth of the upper groove is the same from the middle of the upper clamp body to both ends; The distance between the bottom of the groove and the inner ring surface of the lower rib is the depth of the lower groove.
  • the depth of the lower groove is the same from the middle of the lower clamp body to the two ends; because the outer circumference of the seal ring of the quick coupling clamp is greater than the upper 3.
  • the retaining ring Since the retaining ring is firmly connected to the body of the sealing ring, the retaining ring will hinder the free contraction of the sealing ring when the clamp is locked, causing the sealing ring and the retaining ring to form ripples The unevenness of the shape, and as the sealing ring ages, the retaining ring will cause the sealing ring to contract inward, so that the body of the sealing ring and the lip are bonded together, thereby losing the effect of self-sealing and causing the seal to fail.
  • One of the technical problems to be solved by the present invention is to provide a quick connection clamp for quicker and more convenient assembly of the clamp itself and connection to the pipeline in view of the above-mentioned defect 1 in the background art.
  • the present invention provides a quick-connecting clamp with the following structure, including an upper clamp body and a lower clamp body both of which are semi-ring-shaped, and the inner surface of the upper clamp body is provided with intervals Two upper convex ribs that are radially inwardly convex and extend in the circumferential direction of the inner ring surface, and the inner ring surface is provided with an upper seal ring groove between the upper ribs; the inner ring of the lower clamp body Two lower convex ribs which are radially inwardly convex and extend along the circumferential direction of the inner annular surface are provided at intervals on the surface, and a lower seal ring groove between the lower convex ribs is provided on the inner annular surface; : One end of the upper clamp body and the lower clamp body is the insertion end and the other end is the connecting end; the connecting ends of the upper clamp body and the lower clamp body are provided with lugs, and the connecting ends of the two The bolts of the lug
  • the plug-in mechanism includes two connecting blocks connected to the plug end of the upper clamp body, the connecting block is connected with a connecting column, and the connecting block, the connecting column and the upper clamp body form an insertion hole;
  • the connecting end of the lower clamp body is connected with a connecting arm whose outer end is a hook; after the connecting arm is inserted into the insertion hole, the hook of the connecting arm can be hooked on the connecting post, thereby achieving the upper
  • the plug-in connection of the plug end of the clamp body and the lower clamp body is
  • the contact surface of the hook and the connecting column and the contact surface of the connecting column and the hook are all arc surfaces.
  • the plug-in mechanism includes a connecting plate connected to the plug-in end of the upper clamp body, a plug-in column is connected to the connecting plate, and a plug-in gap is provided between the plug-in column and the upper clamp body;
  • the plug end of the lower clamp body is connected with a plug arm whose outer end is a hook; after the plug arm is inserted into the insertion gap, the hook of the connection arm can be hooked on the plug post, thereby The plug-in connection of the plug ends of the upper clamp body and the lower clamp body is realized.
  • the surfaces where the hook and the plug post contact and the surfaces where the plug and the hook contact are arc surfaces.
  • the present invention makes the following improvements on the basis of the above technical solution:
  • the distance between the groove bottom of the upper seal ring groove of the upper clamp body and the inner ring surface of the upper rib is the upper groove depth; the upper groove depth is the largest in the middle of the upper clamp body and at the end of the upper clamp body The smallest part; the distance between the groove bottom of the lower seal ring groove of the lower clamp body and the inner ring surface of the lower rib is the depth of the lower groove; the depth of the lower groove is the largest in the middle of the lower clamp body and the end of the lower clamp body Department is the smallest.
  • the depth of the upper groove gradually decreases from the middle to both ends of the upper clamp body; the depth of the lower groove gradually decreases from the middle to both ends of the lower clamp body.
  • the bottom surface of the groove of the upper seal ring groove is an elliptical arc-shaped arc surface, and the inner ring surface of the upper rib is an elliptical arc-shaped arc surface; the bottom surface of the groove of the lower seal ring groove is an elliptical arc-shaped arc surface, the The inner ring surface of the lower rib is an elliptical arc.
  • the present invention makes the following improvements on the basis of the above technical solution:
  • the sealing ring includes a rubber ring body, and both ends of the rubber ring body are provided with an end wall integrally connected with the rubber ring body and an axial through hole in the central portion, and the inner edge of the end wall is axially convex to form a ring Lip, the sealing ring also includes a retaining ring that is not directly connected with the body of the rubber ring.
  • the retaining rings are two and are respectively connected to the two ring lips.
  • a plurality of protrusions are ring-shaped on the inner wall surface of the rubber ring body, and the protrusions are provided with sockets, and the retaining ring is inserted into the sockets.
  • a guide sleeve is connected to the inner ring surface of the retaining ring.
  • annular connector is interposed between the apron body and the ring lip.
  • the annular connector is hollowly formed to form a ring cavity, and an outer ring surface of the annular connector is provided with an opening along the circumferential direction thereof.
  • the ring is connected to the inner ring surface of the ring-shaped connecting body.
  • the inner ring surface of the retaining ring is provided with a plurality of liquid passing holes, and the liquid passing holes communicate with the ring cavity.
  • the upper clamp body and the lower clamp body are respectively set as a plug end and a connecting end.
  • the plug ends are connected by a plug mechanism, and the plug structure can not only quickly realize the insertion of the upper clamp body and the lower clamp body
  • the connection end is connected, and it can also be quickly disassembled; the connection end is connected by the bolt passing through the lug and the nut screwed on the bolt; that is to say, only one is required when the upper clamp body and the lower clamp body are assembled
  • the bolt and the nut can be rotated relatively, so the assembly of the clamp is quick and convenient, and the assembly efficiency can be greatly improved.
  • only one bolt and nut can be rotated relatively to achieve the tight connection between the clamp and the pipeline, so the efficiency of the pipeline connection can also be greatly improved.
  • the depth of the lower groove is the largest in the middle of the lower clamp body, the minimum is at the end of the lower clamp body, and the depth of the upper groove is the largest in the middle of the upper clamp body, and the smallest is at the end of the upper clamp body ;
  • the retaining ring is not directly connected with the rubber ring body, the retaining ring not only plays a limiting role, but also does not hinder the free contraction of the sealing ring when the clamp is locked, causing the sealing ring and the retaining ring to form a corrugated shape It is uneven, and with the aging of the seal ring, the retaining ring will not drive the seal ring to shrink inward, which prevents the seal ring body and the ring lip from sticking together and losing the self-sealing effect, resulting in seal failure.
  • FIG. 1 is a schematic diagram of a three-dimensional structure of the first structure of the present invention.
  • FIG. 2 is a schematic view of the structure of the upper clamp body in FIG. 1, that is, an orthographic view of the upper clamp body after cutting along the rotation center line perpendicular to the upper clamp body;
  • Figure 3 is a cross-sectional view taken along line A-A in Figure 2;
  • FIG. 4 is a schematic view of the structure of the lower clamp body in FIG. 1, that is, an orthographic view of the lower clamp body after being cut perpendicular to the rotation center line of the lower clamp body;
  • FIG. 5 is a cross-sectional view taken along line B-B in FIG. 4;
  • FIG. 6 is a schematic diagram of a three-dimensional structure of the second structure of the present invention.
  • Figure 8 is a schematic diagram of the second structure of the seal ring
  • FIG. 10 is a schematic diagram of the fourth structural form of the seal ring.
  • the quick coupling clamp of the first structure includes an upper clamp body 1 and a lower clamp body 2 each having a semi-annular shape, and the inner surface of the upper clamp body 1 is radially spaced Two upper ribs 3 that are convex and extend along the circumferential direction of the inner ring surface, and the inner ring surface is provided with an upper seal ring groove 4 between the upper ribs 3; Two lower ribs 5 that are radially inwardly convex and extend along the circumferential direction of the inner ring surface are spaced apart on the inner ring surface, and a lower seal ring groove 6 between the lower ribs is provided on the inner ring surface.
  • One end of the upper clamp body 1 and the lower clamp body 2 is an insertion end, and the other end is a connection end.
  • the connecting ends of the upper clamp body 1 and the lower clamp body 2 are provided with lugs 7, and the connecting ends of the upper clamp body 1 and the lower clamp body 2 are connected to the bolts by bolts passing through the lugs 7 and The upper nuts are connected together.
  • the plug ends of the upper clamp body 1 and the lower clamp body 2 are connected together by a plug mechanism provided at the plug ends of the two, the plug mechanism includes two pieces connected to the plug ends of the upper clamp body 1 A connecting block 8 to which a connecting post 9 is connected, the connecting block 8, the connecting post 9 and the upper clamp body 1 enclose an insertion hole; the plug end of the lower clamp body 2 is connected There is a connecting arm 10 whose outer end is a hook; after the connecting arm 10 is inserted into the insertion hole, the hook of the connecting arm 10 can be hooked on the connecting post, thereby realizing the upper clamp body 1 and the lower clamp The plug end of the body 2 is plug-in connected.
  • the surface where the hook and the connecting column contact and the connecting column and the hook The contact surfaces are set as arc surfaces.
  • the arc surface contact makes the connecting column and the hook easy to move relative to each other.
  • the hook will rotate relative to the connecting column and the connecting column will slide along the curved surface of the hook to bend
  • the inner end of the hook, the insertion ends of the upper clamp body 1 and the lower clamp body 2 will gradually approach each other as the bolt tightening progresses.
  • the distance between the groove bottom of the upper seal ring groove 4 of the upper clamp body 1 and the inner ring surface of the upper rib 3 is the upper groove depth, and the distance is along the inner ring surface of the upper rib 3
  • the distance in the direction of the radial line, that is, in the view of FIG. 2, the radial line passing through the center of rotation of the upper clamp body and the projected outline of the groove bottom of the upper seal ring groove 4 and the inner ring surface of the upper rib 3 After the projected outlines intersect, the distance between the two intersection points is the upper groove depth.
  • the upper groove depth is the largest in the middle of the upper clamp body 1 and the smallest at the end of the upper clamp body 1; H in FIG.
  • h represents the upper clamp body 1.
  • the upper grooves at both ends are deep.
  • the depth of the upper groove gradually decreases from the middle to both ends of the upper clamp body 1, and the value from H to h gradually decreases.
  • the distance between the groove bottom of the lower seal ring groove 6 of the lower clamp body 2 and the inner annular surface of the lower rib 5 is the depth of the lower groove, and the distance is along the inner annular surface of the lower rib 5
  • the lower groove depth is the largest in the middle of the lower clamp body 2 and the smallest at the end of the lower clamp body 2; D in FIG.
  • the groove bottom surface of the upper seal ring groove 4 is preferably designed as an elliptical arc-shaped arc surface
  • the inner annular surface of the upper rib 3 is preferably designed as an elliptical arc-shaped arc surface; that is, the edge is perpendicular to the upper clamp
  • FIG. 2 The orthographic view of the body of the clamp after the center of rotation of the body is cut out is shown in FIG. 2, the contour line formed by projecting the bottom surface of the groove of the upper seal ring groove 4 is an elliptical arc, and the upper rib 3
  • the contour line formed by the projection of the inner torus is also an elliptical arc.
  • the groove bottom surface of the lower seal ring groove 6 is preferably designed as an elliptical arc-shaped arc surface
  • the inner ring surface of the lower rib 5 is preferably designed as an elliptical arc-shaped arc surface; that is, the edge is perpendicular to the lower clamp
  • the contour line formed by projecting the bottom surface of the groove of the lower seal ring groove 6 is an elliptical arc
  • the lower rib 5 The contour line formed by the projection of the inner torus is also an elliptical arc.
  • the advantages of designing the groove bottom surface of the upper seal ring groove 4 and the inner ring surface of the upper rib 3 and the groove bottom surface of the lower seal ring groove 6 and the inner ring surface of the lower rib 5 as an elliptical arc shape are: two The central space enclosed by the end of the clamp body for receiving the pipeline is elliptical, so that the pipeline can be more easily inserted into the central space; after the two clamp bodies are tightened, the deformation of the clamp body can be forced The central space becomes circular, so that the clamp body can be tightly attached to the pipeline, which can not only ensure a firm connection but also a sealing effect.
  • the generally adopted technical solution is to combine the groove bottom surface of the upper seal ring groove 4 and the inner annular surface of the upper rib 3 and the groove bottom surface of the lower seal ring groove 6 and the inner portion of the lower rib 5
  • the torus is designed as an elliptical arc.
  • the quick-connect clamp of the second structure is basically the same as the quick-connect clamp of the first structure described above, and the only difference is the difference in the plug-in mechanism.
  • the plug of the quick-connect clamp of the second structure The connection mechanism includes a connecting plate 12 connected to the plug end of the upper clamp body 1, and a plug post 13 is connected to the connecting plate 12, and a plug is installed between the plug column 13 and the upper clamp body 1 gap.
  • the plug end of the lower clamp body 2 is connected with a plug arm 14 whose outer end is a hook; after the plug arm 14 is inserted into the insertion gap, the hook of the connecting arm 14 can be hooked on the plug
  • the post 13 is connected to the plug end of the upper clamp body 1 and the lower clamp body 2.
  • the surfaces where the hook and the plug post contact and the surfaces where the plug and the hook contact are arc surfaces.
  • the surface where the hook and the plug column contact and the plug column and The surface contacted by the hook is set as a curved surface.
  • the arc surface contact makes the plug column and the hook easy to move relative to each other.
  • the hook will rotate relative to the plug column and the plug column will also move along the hook.
  • the arc surface slides toward the inner end of the hook, and the insertion ends of the upper clamp body 1 and the lower clamp body 2 will gradually approach each other as the bolts are tightened.
  • the sealing ring includes a rubber ring body 30.
  • the two ends of the rubber ring body 30 are each provided with the rubber ring body as a whole, and the central portion is provided with an axial through hole
  • the end wall 31, the inner edge of the end wall is axially convex to form a ring lip 32, and the sealing ring further includes a stop ring 33, which can play a positioning and limiting role on the pipe inserted into the clamp to prevent the pipe Over-insertion.
  • the retaining ring 33 is not directly connected with the rubber ring body 30 as a whole.
  • the retaining ring 33 is two and respectively connected to the two ring lips 32.
  • the sealing ring includes a rubber ring body 30.
  • the two ends of the rubber ring body 30 are each provided with the rubber ring body as a whole, and the central portion is provided with an axial through hole
  • An end wall 31 the inner edge of the end wall is axially convex to form a ring lip 32
  • the sealing ring further includes a retaining ring 33, and a plurality of protrusions 34 are ring-shaped on the inner wall surface of the apron body, the protrusions
  • a socket is provided on 34, and the retaining ring 33 is not directly connected with the rubber ring body 30 as a whole, and the retaining ring 33 can be easily inserted and disassembled in the socket.
  • the third structural form of the seal ring 11 is shown in FIG. 9 and is an improvement based on the second structural form.
  • the improvement is that a guide sleeve 35 is connected to the inner ring surface of the retaining ring 33 The guide sleeve 35 can be inserted into the pipe to guide the pipe inserted into the clamp.
  • the sealing ring 11 includes a rubber ring body 30, and both ends of the rubber ring body 30 are provided with the rubber ring body as a whole and an axial through hole is provided at the center
  • An end wall 31 an inner edge of the end wall is axially convex to form a ring lip 32, and an annular connector 36 is interposed between the apron body and the ring lip, and the annular connector 36 is hollowly formed to form an annular cavity 37.
  • An opening 38 communicating with the ring cavity 37 is formed on the outer ring surface of the ring-shaped connecting body along the circumferential direction thereof, and the seal ring further includes a retaining ring 33 connected to the inner ring of the ring-shaped connecting body Face.
  • the ring In order to prevent a closed space formed between the ring-shaped connecting body 36, the rubber ring body 30, and the ring lip 32, so that liquid cannot enter between the ring lip and the rubber ring body, resulting in the loss of the self-sealing function of the ring lip, the ring
  • the inner ring surface is provided with a plurality of liquid holes 39, the liquid holes 39 communicate with the ring cavity 37, and the liquid can enter the ring lip and the rubber ring body from the liquid holes 39.
  • the upper clamp body and the lower clamp body are respectively set as a plug end and a connecting end.
  • the plug ends are connected by a plug mechanism, and the plug structure can not only quickly realize the insertion of the upper clamp body and the lower clamp body
  • the connection end is connected, and it can also be quickly disassembled; the connection end is connected by the bolt passing through the lug and the nut screwed on the bolt; that is to say, only one is required when the upper clamp body and the lower clamp body are assembled
  • the bolt and the nut can be rotated relatively, so the assembly of the clamp is quick and convenient, and the assembly efficiency can be greatly improved.
  • the depth of the lower groove is the largest in the middle of the lower clamp body, the minimum is at the end of the lower clamp body, and the depth of the upper groove is the largest in the middle of the upper clamp body, and the smallest is at the end of the upper clamp body ;
  • the retaining ring is not directly connected with the rubber ring body, the retaining ring not only plays a limiting role, but also does not hinder the free contraction of the sealing ring when the clamp is locked, causing the sealing ring and the retaining ring to form a corrugated shape It is uneven, and with the aging of the seal ring, the retaining ring will not drive the seal ring to shrink inward, which prevents the seal ring body and the ring lip from sticking together and losing the self-sealing effect, resulting in seal failure.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Geometry (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Clamps And Clips (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)

Abstract

一种快连卡箍,包括均呈半环形的上卡箍本体(1)和下卡箍本体(2),上卡箍本体(1)的内环面上设有上凸筋(3)和上密封圈槽(4);下卡箍本体(2)的内环面上设有下凸筋(5)和下密封圈槽(6);上卡箍本体(1)和下卡箍本体(2)的一端为插入端、另一端为连接端;上卡箍本体(1)和下卡箍本体(2)的连接端均设有凸耳(7),二者的连接端通过穿过所述凸耳(7)的螺栓连接在一起;上卡箍本体(1)和下卡箍本体(2)的插接端通过设在二者插接端的插接机构连接在一起;上卡箍本体(1)和下卡箍本体(2)端对端连接后能围出用于接纳管道的中央空间且该中央空间内设有装在上密封圈槽(4)、下密封圈槽(6)内的密封圈。该结构的卡箍自身装配以及与管道连接的速度快,使用方便,可以大大提高卡箍的生产效率和管道连接效率。

Description

一种快连卡箍 技术领域
本发明涉及管道连接的卡箍,具体涉及一种快连卡箍。
背景技术
目前,快连卡箍因其使用方便、连接速度快,被广泛用于管道的连接。现有的快连卡箍包括均呈半环形的上卡箍本体和下卡箍本体,所述上卡箍本体的内环面上间隔设有径向内凸且沿内环面的周向延伸的两条上凸筋,该内环面上设有位于所述上凸筋之间的上密封圈槽;所述下卡箍本体的内环面上间隔设有径向内凸且沿内环面的周向延伸的两条下凸筋,该内环面上设有位于所述下凸筋之间的下密封圈槽;上卡箍本体和下卡箍本体的两端部均设有凸耳,通过穿装于凸耳的螺栓将上卡箍本体和下卡箍本体端对端相的连接在一起,上卡箍本体和下卡箍本之间设有装在上、下密封圈槽内的密封圈。
上述结构的快连卡箍主要存在以下缺陷:一是,两端均用螺栓进行连接,上卡箍本体和下卡箍本体装配时以及卡箍与管道相连时,需对两个螺栓都新进转动,因此降低了装配效率以及与管道连接紧固的效率。二是,上密封圈槽的槽底与上凸筋的内环面之间的距离为上槽深,上槽深自上卡箍本体的中部向两端部的深度相同;下密封圈槽的槽底与下凸筋的内环面之间的距离为下槽深,下槽深自下卡箍本体的中部向两端部的深度相同;由于快连卡箍的密封圈的外周长大于上、下密封圈槽的长度之和,上卡箍本体和下卡箍本体装配在一起后,其端部会出现间隔,当卡箍套在管道上进行紧固时,密封圈受压变形会从间隔处突出来,易造成密封圈的突出部所对应的部段与管道接触不良,而导致密封失效。三是,密封圈的本体上连接有挡圈,由于该挡圈与密封圈的本体固连成一体,卡箍锁紧时挡圈会阻碍密封圈的自由收缩,造成密封圈和挡圈形成波纹状的不平整,并且随着密封圈的老化,挡圈会带动密封圈向里收缩,使密封圈的本体和环唇粘结在一起,从而失去自密封的作用,造成密封失效。
技术问题
本发明要解决的技术问题之一是针对上述背景技术中的缺陷一,提供卡箍自身组装和与管道连接时更加快捷方便的快连卡箍。
技术解决方案
为解决上述技术问题,本发明提供了一种如下结构的快连卡箍,包括均呈半环形的上卡箍本体和下卡箍本体,所述上卡箍本体的内环面上间隔设有径向内凸且沿内环面的周向延伸的两条上凸筋,该内环面上设有位于所述上凸筋之间的上密封圈槽;所述下卡箍本体的内环面上间隔设有径向内凸且沿内环面的周向延伸的两条下凸筋,该内环面上设有位于所述下凸筋之间的下密封圈槽;其结构特点在于:上卡箍本体和下卡箍本体的一端为插入端、另一端为连接端;上卡箍本体和下卡箍本体的连接端均设有凸耳,二者的连接端通过穿过所述凸耳的螺栓连接在一起;上卡箍本体和下卡箍本体的插接端通过设在二者插接端的插接机构连接在一起;上卡箍本体和下卡箍本体端对端连接后能围出用于接纳管道的中央空间且该中央空间内设有装在上、下密封圈槽内的密封圈。
所述插接机构包括连接在上卡箍本体插接端上的两块连接块,所述连接块上连接有连接柱,所述连接块、连接柱和上卡箍本体围成插装孔;所述下卡箍本体的插接端上连接有外端为弯钩的连接臂;所述连接臂插入所述插装孔后连接臂的弯钩能钩在所述连接柱上,从而实现上卡箍本体和下卡箍本体的插接端的插装连接。
所述弯钩和连接柱接触的面以及连接柱和弯钩接触的面均为弧面。
所述插接机构包括连接在上卡箍本体插接端上的连接板,所述连接板上连接有插接柱,所述插接柱与上卡箍本体之间设有插装间隙;所述下卡箍本体的插接端上连接有外端为弯钩的插接臂;所述插接臂插入所述插装间隙后连接臂的弯钩能钩在所述插接柱上,从而实现上卡箍本体和下卡箍本体的插接端的插装连接。
所述弯钩和插接柱接触的面以及插接柱和弯钩接触的面均为弧面。
本发明为了解决上述背景技术中的缺陷二,在上述技术方案的基础上做了如下改进:
所述上卡箍本体的上密封圈槽的槽底与上凸筋的内环面之间的距离为上槽深;上槽深在上卡箍本体的中部最大、在上卡箍本体的端部最小;所述下卡箍本体的下密封圈槽的槽底与下凸筋的内环面之间的距离为下槽深;下槽深在下卡箍本体的中部最大、在下箍本体的端部最小。
所述上槽深自上卡箍本体的中部向两端部逐渐减小;所述下槽深自下卡箍本体的中部向两端部逐渐减小。
所述上密封圈槽的槽底面为椭圆弧状的弧面,所述上凸筋的内环面为椭圆弧状的弧面;所述下密封圈槽的槽底面为椭圆弧状的弧面,所述下凸筋的内环面为椭圆弧状的弧面。
本发明为了解决上述背景技术中的缺陷三,在上述技术方案的基础上做了如下改进:
所述密封圈包括胶圈本体,胶圈本体的两端各设有与胶圈本体连为一体且中心部位设有轴向通孔的端壁,所述端壁内边缘轴向内凸形成环唇,所述密封圈还包括不与胶圈本体直接连为一体的挡圈。
所述挡圈为两个且分别连接在两个环唇上。
所述胶圈本体的内壁面上环设多个凸块,所述凸块上设有插口,所述挡圈插装在所述插口内。
所述挡圈的内环面上连接有导向套。
所述胶圈本体和环唇之间插装有环状连接体,所述环状连接体中空设置形成环腔,环状连接体的外环面上沿其周向开设有开口,所述挡圈连接在环状连接体的内环面上。
所述挡圈的内环面上环设有多个过液孔,所述过液孔与所述环腔连通。
有益效果
本发明将上卡箍本体和下卡箍本体的分别设为插接端和连接端,插接端通过插接机构相连,通过插接结构不但能快速实现上卡箍本体和下卡箍本体插接端连接,而且也可快速的拆开;而连接端通过穿过凸耳的螺栓和螺接在螺栓的螺帽相连;也就是说上卡箍本体和下卡箍本体组装时只需使一个螺栓和螺帽相对转动即可,因而卡箍的组装快捷方便,能大大提高组装效率。同样的道理,将卡箍与管道连接时,也只需使一个螺栓和螺帽相对转动即可实现卡箍与管道的紧固连接,因而也可大大提高管道连接的效率。
本发明将下槽深在下卡箍本体的中部设为最大、在下箍本体的端部设为最小,将上槽深在上卡箍本体的中部设为最大、在上卡箍本体的端部最小;这样紧固卡箍时,密封圈受压变形后其形变余量可以由上、下卡箍本体的端部向上、下卡箍本体的中部汇集,不容易发生密封圈受压变形后从上、下卡箍本体的端部之间突出来的现象,可以有效保证密封圈与管道的充分接触,能保证密封效果。
本发明将挡圈不与胶圈本体直接连为一体,挡圈既起到了限位作用,又不会在卡箍锁紧时阻碍密封圈的自由收缩,造成密封圈和挡圈形成波纹状的不平整,并且随着密封圈的老化,挡圈也不会带动密封圈向里收缩,避免了密封圈的本体和环唇粘结在一起失去自密封的作用而造成密封失效。
附图说明
下面结合附图对本发明的具体实施方式作进一步的详细说明:
图1本发明第一种结构的立体结构示意图;
图2是图1中的上卡箍本体的结构的示意图即沿垂直于上卡箍本体的回转中心线对上卡箍本体进行剖切后的正投影视图;
图3是沿图2中A-A线的剖面图;
图4是图1中的下卡箍本体的结构的示意图即垂直于下卡箍本体的回转中心线对下卡箍本体进行剖切后的正投影视图;
图5是沿图4中B-B线的剖面图;
图6本发明第二种结构的立体结构示意图;
图7是密封圈一种结构形式的示意图,
图8是密封圈第二种结构形式的示意图
图9是密封圈第三种结构形式的示意图;
图10是密封圈第四种结构形式的示意图。
本发明的最佳实施方式
参照图1-5,第一种结构的快连卡箍包括均呈半环形的上卡箍本体1和下卡箍本体2,所述上卡箍本体1的内环面上间隔设有径向内凸且沿内环面的周向延伸的两条上凸筋3,该内环面上设有位于所述上凸筋3之间的上密封圈槽4;所述下卡箍本体2的内环面上间隔设有径向内凸且沿内环面的周向延伸的两条下凸筋5,该内环面上设有位于所述下凸筋之间的下密封圈槽6。上卡箍本体1和下卡箍本体2的一端为插入端、另一端为连接端。上卡箍本体1和下卡箍本体2的连接端均设有凸耳7,上卡箍本体1和下卡箍本体2的连接端通过穿过所述凸耳7的螺栓和螺接在螺栓上螺帽连接在一起。上卡箍本体1和下卡箍本体2的插接端通过设在二者插接端的插接机构连接在一起,所述插接机构包括连接在上卡箍本体1插接端上的两块连接块8,所述连接块8上连接有连接柱9,所述连接块8、连接柱9和上卡箍本体1围成插装孔;所述下卡箍本体2的插接端上连接有外端为弯钩的连接臂10;所述连接臂10插入所述插装孔后连接臂10的弯钩能钩在所述连接柱上,从而实现了上卡箍本体1和下卡箍本体2的插接端插装连接。卡箍与管道连接后紧固连接端的螺栓时,为了便于上卡箍本体1和下卡箍本体2的插接端的相互靠近,将所述弯钩和连接柱接触的面以及连接柱和弯钩接触的面均设为弧面,弧面接触使得连接柱和弯钩容易产生相对移动,紧固时弯钩会与连接柱发生相对转动的同时连接柱也会沿弯钩的弧面滑向弯钩的内端,上卡箍本体1和下卡箍本体2的插接端也会随着螺栓紧固的进行而逐渐相互靠近。上卡箍本体1和下卡箍本体1的连接端相对连接后以及插入端相对连接后能围出用于接纳管道的中央空间且该中央空间内设有装在上、下密封圈槽内的密封圈11。
参照图2,所述上卡箍本体1的上密封圈槽4的槽底与上凸筋3的内环面之间的距离为上槽深,该距离为沿上凸筋3的内环面的径线方向上的距离,即在图2的视图中,通过上卡箍本体的回转中心的径线与上密封圈槽4的槽底的投影轮廓线和上凸筋3的内环面的投影轮廓线相交后,两相交点之间的距离为上槽深。上槽深在上卡箍本体1的中部最大、在上卡箍本体1的端部最小;图2中的H代表上卡箍本体1的中部的上槽深,h代表上卡箍本体1的两端部的上槽深。上槽深自上卡箍本体1的中部向两端部逐渐减小,由H至h的数值逐渐减小。将上槽深设为自上卡箍本体1的中部向两端部逐渐减小,这样可更好的容纳密封圈的形变,能有效防止密封圈受压变形后从上、下卡箍本体的端部之间突伸出来。
参照图4,所述下卡箍本体2的下密封圈槽6的槽底与下凸筋5的内环面之间的距离为下槽深,该距离为沿下凸筋5的内环面的径线方向上的距离,即在图4的视图中,通过下卡箍本体的回转中心的径线与下密封圈槽6的槽底的投影轮廓线和下凸筋5的内环面的投影轮廓线相交后,两相交点之间的距离为上槽深。下槽深在下卡箍本体2的中部最大、在下卡箍本体2的端部最小;图4中的D代表下卡箍本体2的中部的下槽深,d代表下卡箍本体2的两端部的下槽深。下槽深自下卡箍本体2的中部向两端部逐渐减小,由D至d的数值逐渐减小。将下槽深设为自下卡箍本体2的中部向两端部逐渐减小,这样可更好的容纳密封圈的形变,能有效防止密封圈受压变形后从上、下卡箍本体的端部之间突伸出来。
所述上密封圈槽4的槽底面最好设计成椭圆弧状的弧面,所述上凸筋3的内环面最好设计成椭圆弧状的弧面;也就是说,沿垂直于上卡箍本体的回转中心线对卡箍本体进行剖切后的正投影视图中即图2中,所述上密封圈槽4的槽底面投影形成的轮廓线为一段椭圆弧,所述上凸筋3的内环面投影形成的轮廓线也为一段椭圆弧。所述下密封圈槽6的槽底面最好设计成椭圆弧状的弧面,所述下凸筋5的内环面最好设计成椭圆弧状的弧面;也就是说,沿垂直于下卡箍本体的回转中心线对卡箍本体进行剖切后的正投影视图中即图4中,所述下密封圈槽6的槽底面投影形成的轮廓线为一段椭圆弧,所述下凸筋5的内环面投影形成的轮廓线也为一段椭圆弧。而将上密封圈槽4的槽底面和上凸筋3的内环面以及下密封圈槽6的槽底面和下凸筋5的内环面设计成椭圆弧状的弧面的好处在于:两个卡箍本体端对端连接后围出的用于接纳管道的中央空间呈椭圆形,这样可使管道更容易插入该中央空间;两个卡箍本体紧固后,卡箍本体受力变形可使该中央空间成为圆形,从而可使得卡箍本体紧紧贴在管道上,既能保证连接牢靠又能保证密封效果。因此,在实际投放市场的产品中,一般采用的技术方案是将上密封圈槽4的槽底面和上凸筋3的内环面以及下密封圈槽6的槽底面和下凸筋5的内环面设计成椭圆弧状的弧面。
本发明的实施方式
参照图6,第二种结构的快连卡箍与上述第一种结构的快连卡箍基本相同,其不同之处仅在于插接机构的不同,第二种结构的快连卡箍的插接机构包括连接在上卡箍本体1插接端上的连接板12,所述连接板12上连接有插接柱13,所述插接柱13与上卡箍本体1之间设有插装间隙。所述下卡箍本体2的插接端上连接有外端为弯钩的插接臂14;所述插接臂14插入所述插装间隙后连接臂14的弯钩能钩在所述插接柱13上,从而实现了上卡箍本体1和下卡箍本体2的插接端的插装连接。所述弯钩和插接柱接触的面以及插接柱和弯钩接触的面均为弧面。卡箍与管道连接后紧固连接端的螺栓时,为了便于上卡箍本体1和下卡箍本体2的插接端的相互靠近,将所述弯钩和插接柱接触的面以及插接柱和弯钩接触的面均设为弧面,弧面接触使得插接柱和弯钩容易产生相对移动,紧固时弯钩会与插接柱发生相对转动的同时插接柱也会沿弯钩的弧面滑向弯钩的内端,上卡箍本体1和下卡箍本体2的插接端也会随着螺栓紧固的进行而逐渐相互靠近。
上述密封圈11的一种结构形式如图7所示,密封圈包括胶圈本体30,胶圈本体30的两端各设有与胶圈本体连为一体且中心部位设有轴向通孔的端壁31,所述端壁内边缘轴向内凸形成环唇32,所述密封圈还包括挡圈33,挡圈33可以对插入卡箍内的管道起到定位限位作用,以防管道过度插入。所述挡圈33不与胶圈本体30直接连为一体,所述挡圈33为两个且分别连接在两个环唇32上。
密封圈11的第二种结构形式如图8所示,密封圈包括胶圈本体30,胶圈本体30的两端各设有与胶圈本体连为一体且中心部位设有轴向通孔的端壁31,所述端壁内边缘轴向内凸形成环唇32,所述密封圈还包括挡圈33,所述胶圈本体的内壁面上环设多个凸块34,所述凸块34上设有插口,所述挡圈33不与胶圈本体30直接连为一体,所述挡圈33可方便拆装的插装在所述插口内。密封圈11的第三种结构形式如图9所示,是在第二种结构形式的基础上做出的改进,改进之处在于在所述挡圈33的内环面上连接有导向套35,导向套35能插入管道内对插入卡箍的管道进行导向。
密封圈11的第四种结构形式如图10所示,密封圈包括胶圈本体30,胶圈本体30的两端各设有与胶圈本体连为一体且中心部位设有轴向通孔的端壁31,所述端壁内边缘轴向内凸形成环唇32,所述胶圈本体和环唇之间插装有环状连接体36,所述环状连接体36中空设置形成环腔37,环状连接体的外环面上沿其周向开设有与环腔37连通的开口38,所述密封圈还包括挡圈33,所述挡圈33连接在环状连接体的内环面上。为了防止环状连接体36与胶圈本体30、环唇32之间形成密闭空间,使液体不能进入环唇和胶圈本体之间,而导致环唇的自密封功能丧失,在所述挡圈的内环面上环设有多个过液孔39,所述过液孔39与所述环腔37连通,液体可以从过液孔39进入环唇和胶圈本体之间。
工业实用性
本发明将上卡箍本体和下卡箍本体的分别设为插接端和连接端,插接端通过插接机构相连,通过插接结构不但能快速实现上卡箍本体和下卡箍本体插接端连接,而且也可快速的拆开;而连接端通过穿过凸耳的螺栓和螺接在螺栓的螺帽相连;也就是说上卡箍本体和下卡箍本体组装时只需使一个螺栓和螺帽相对转动即可,因而卡箍的组装快捷方便,能大大提高组装效率。同样的道理,将卡箍与管道连接时,也只需使一个螺栓和螺帽相对转动即可实现卡箍与管道的紧固连接,因而也可大大提高管道连接的效率。本发明将下槽深在下卡箍本体的中部设为最大、在下箍本体的端部设为最小,将上槽深在上卡箍本体的中部设为最大、在上卡箍本体的端部最小;这样紧固卡箍时,密封圈受压变形后其形变余量可以由上、下卡箍本体的端部向上、下卡箍本体的中部汇集,不容易发生密封圈受压变形后从上、下卡箍本体的端部之间突出来的现象,可以有效保证密封圈与管道的充分接触,能保证密封效果。本发明将挡圈不与胶圈本体直接连为一体,挡圈既起到了限位作用,又不会在卡箍锁紧时阻碍密封圈的自由收缩,造成密封圈和挡圈形成波纹状的不平整,并且随着密封圈的老化,挡圈也不会带动密封圈向里收缩,避免了密封圈的本体和环唇粘结在一起失去自密封的作用而造成密封失效。
序列表自由内容
在此处键入序列表自由内容描述段落。

Claims (10)

  1. 一种快连卡箍,包括均呈半环形的上卡箍本体和下卡箍本体,所述上卡箍本体的内环面上间隔设有径向内凸且沿内环面的周向延伸的两条上凸筋,该内环面上设有位于所述上凸筋之间的上密封圈槽;所述下卡箍本体的内环面上间隔设有径向内凸且沿内环面的周向延伸的两条下凸筋,该内环面上设有位于所述下凸筋之间的下密封圈槽;其特征在于:上卡箍本体和下卡箍本体的一端为插入端、另一端为连接端;上卡箍本体和下卡箍本体的连接端均设有凸耳,二者的连接端通过穿过所述凸耳的螺栓连接在一起;上卡箍本体和下卡箍本体的插接端通过设在二者插接端的插接机构连接在一起;上卡箍本体和下卡箍本体端对端连接后能围出用于接纳管道的中央空间且该中央空间内设有装在上、下密封圈槽内的密封圈。
  2. 根据权利要求1所述的快连卡箍,其特征在于:所述插接机构包括连接在上卡箍本体插接端上的两块连接块,所述连接块上连接有连接柱,所述连接块、连接柱和上卡箍本体围成插装孔;所述下卡箍本体的插接端上连接有外端为弯钩的连接臂;所述连接臂插入所述插装孔后连接臂的弯钩能钩在所述连接柱上,从而实现上卡箍本体和下卡箍本体的插接端的插装连接。
  3. 根据权利要求2所述的快连卡箍,其特征在于:所述弯钩和连接柱接触的面以及连接柱和弯钩接触的面均为弧面。
  4. 根据权利要求1所述的快连卡箍,其特征在于:所述插接机构包括连接在上卡箍本体插接端上的连接板,所述连接板上连接有插接柱,所述插接柱与上卡箍本体之间设有插装间隙;所述下卡箍本体的插接端上连接有外端为弯钩的插接臂;所述插接臂插入所述插装间隙后连接臂的弯钩能钩在所述插接柱上,从而实现上卡箍本体和下卡箍本体的插接端的插装连接。
  5. 根据权利要求4所述的快连卡箍,其特征在于:所述弯钩和插接柱接触的面以及插接柱和弯钩接触的面均为弧面。
  6. 根据权利要求1-5中任一权利要求所述的快连卡箍,其特征在于:所述上卡箍本体的上密封圈槽的槽底与上凸筋的内环面之间的距离为上槽深;上槽深在上卡箍本体的中部最大、在上卡箍本体的端部最小;所述下卡箍本体的下密封圈槽的槽底与下凸筋的内环面之间的距离为下槽深;下槽深在下卡箍本体的中部最大、在下箍本体的端部最小。
  7. 根据权利要求6所述的快连卡箍,其特征在于:所述上槽深自上卡箍本体的中部向两端部逐渐减小;所述下槽深自下卡箍本体的中部向两端部逐渐减小。
  8. 根据权利要求6所述的快连卡箍,其特征在于:所述上密封圈槽的槽底面为椭圆弧状的弧面,所述上凸筋的内环面为椭圆弧状的弧面;所述下密封圈槽的槽底面为椭圆弧状的弧面,所述下凸筋的内环面为椭圆弧状的弧面。
  9. 根据权利要求1所述的快连卡箍,其特征在于:所述密封圈包括胶圈本体,胶圈本体的两端各设有与胶圈本体连为一体且中心部位设有轴向通孔的端壁,所述端壁内边缘轴向内凸形成环唇,所述密封圈还包括不与胶圈本体直接连为一体的挡圈。
  10. 根据权利要求9 所述的管道快连卡箍,其特征在于:所述挡圈为两个且分别连接在两个环唇上
    11. 根据权利要求9所述的管道快连卡箍,其特征在于:所述胶圈本体的内壁面上环设多个凸块,所述凸块上设有插口,所述挡圈插装在所述插口内。
    12. 根据权利要求11所述的管道快连卡箍,其特征在于:所述挡圈的内环面上连接有导向套。
    13. 根据权利要求9所述的管道快连卡箍,其特征在于:所述胶圈本体和环唇之间插装有环状连接体,所述环状连接体中空设置形成环腔,环状连接体的外环面上沿其周向开设有开口,所述挡圈连接在环状连接体的内环面上。
    14. 根据权利要求13所述的管道快连卡箍,其特征在于:所述挡圈的内环面上环设有多个过液孔,所述过液孔与所述环腔连通。
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