CN214007744U - Combined bolt - Google Patents
Combined bolt Download PDFInfo
- Publication number
- CN214007744U CN214007744U CN202022836873.XU CN202022836873U CN214007744U CN 214007744 U CN214007744 U CN 214007744U CN 202022836873 U CN202022836873 U CN 202022836873U CN 214007744 U CN214007744 U CN 214007744U
- Authority
- CN
- China
- Prior art keywords
- screw rod
- bolt
- rod
- clamping
- nut
- 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.)
- Active
Links
- 239000002390 adhesive tape Substances 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 8
- 238000007689 inspection Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
Landscapes
- Clamps And Clips (AREA)
Abstract
The utility model discloses a combined bolt, including bolt and joint spare, the bolt includes the bolt head and the screw rod that is connected with the bolt head, has seted up the cylindrical cavity leading to the screw rod inside at the bolt head top, has seted up two rectangle openings in the both sides of the screw rod body, and two rectangle openings are linked together with the cavity, and what be connected with two rectangle openings below is the anti-drop pole, and anti-drop pole body surface is smooth, inlays magnet on one side of the anti-drop pole body of rod, and the surface screw thread connection of screw rod has nut one; the clamping piece comprises a thin screw rod with external threads, two clamping arms symmetrically arranged at an included angle of 30-60 degrees are arranged at the bottom end of the thin screw rod, two clamping blocks protruding outwards are arranged at the bottom ends of the two clamping arms, and a second nut is connected to the rod body of the thin screw rod in a threaded manner; the utility model discloses can prevent that the nut from coming off from the screw rod, fall into and influence operation safety and product quality in material or other machine interiors.
Description
Technical Field
The utility model relates to a combination bolt belongs to fastener technical field.
Background
The bolt mainly plays a role in connecting two objects, at present, most of the objects needing to be connected by the bolt are connected by the common bolt, and a simple fastening effect can be achieved; the conventional bolt has the problem that the nut is easy to fall off from the screw rod after being loosened due to vibration or friction in use and falls into materials or other machines, and particularly when the bolt is used in the pharmaceutical and food industries, the operation safety and the product quality are influenced.
Disclosure of Invention
For solving prior art's not enough, the utility model provides a combination bolt, include to open up the cavity in the bolt, collocation joint spare prevents that the nut is not hard up, adopts magnet on the anticreep pole to prevent to fall into after the nut drops into in material or other machines, has solved the problem that proposes among the above-mentioned background art.
The utility model discloses the technical scheme who adopts does:
a combined bolt comprises a bolt and a clamping piece, wherein the bolt comprises a bolt head and a screw rod connected with the bolt head, the top end of the bolt head is provided with a cylindrical cavity leading to the interior of the screw rod along the axial direction of the screw rod, the length of the cavity is two thirds of the length of the bolt, the outer surface of the screw rod is provided with external threads, two rectangular openings are symmetrically arranged at the left side and the right side of the screw rod body, the length of the two rectangular openings is one half of the length of the screw rod, the two rectangular openings are communicated with the cavity, the anti-falling rod is connected with the lower parts of the two rectangular openings, the surface of the anti-falling rod body is smooth, a rectangular magnet is embedded in one side of the anti-falling rod body, a screw rod with external threads is connected below the anti-falling rod, and a first nut is connected to the outer surface of the screw rod in a threaded manner; the joint spare is including the thin screw rod that is equipped with the external screw thread, the bottom of thin screw rod is provided with two arm lock that are 30 degrees to 60 degrees contained angles symmetry and set up, the bottom of two arm lock is provided with two convex joint pieces in the outside, the joint spare is by in the bolt head top sliding insertion cavity, and threaded connection has nut two on the thin screw rod body of rod that lies in the bolt head outside.
In order to further realize the utility model, strong adhesive tapes are pasted on the inner side surfaces of the two clamping arms and the clamping block; if the upper end face of the clamping block is stressed too much, the clamping block can be broken, the broken clamping block can fall into the material or other machines, and the strong-viscosity adhesive tape can adhere to the broken clamping block.
In order to further realize the utility model discloses, joint spare integrated into one piece makes.
In order to further realize the utility model, the upper end surfaces of the two clamping blocks are provided with bevel teeth; when the joint piece contacts and hugs closely with a nut bottom, if the nut appears not hard up and can take place to rotate relative screw rod, the awl tooth can provide a reaction force to a nut bottom and slow down not hard up of nut one.
In order to further realize the utility model, the diameter of the cavity is larger than that of the thin screw rod; so that the thin screw rod can be slidably inserted into the cavity.
In order to further realize the utility model, when the two clamping arms are in a clamping state, the distance between the outer end faces of the two clamping blocks is smaller than the diameter of the cavity; the clamping piece is convenient to be inserted into the cavity by the top end of the bolt head in a sliding manner when the two clamping arms are in a clamping state.
In order to further realize the utility model, when the two clamping arms are in a natural state, the distance between the outer end faces of the two clamping blocks is larger than the diameter of the screw rod; when the clamping piece is inserted into the cavity in a sliding mode from the top end of the bolt head, the thin screw rod is rotated, the two clamping arms are in a natural state when the two clamping arms rotate into the rectangular opening, and the distance between the outer end faces of the two clamping blocks is larger than the diameter of the screw rod, so that the two clamping blocks protrude out of the surface of the screw rod at the moment.
The beneficial effects of the utility model reside in that: the nut in threaded connection with the screw rod is prevented from falling off by adopting the mode that the clamping piece is matched with the bolt, the clamping block in the clamping piece can prop against the bottom end of the nut, when the nut is loosened, the clamping block can provide an upward force to the nut to prevent the nut from loosening, meanwhile, the bevel gear on the upper end surface of the clamping block can provide a reaction force to the bottom end of the nut to slow down the rotation generated when the nut is loosened, even if the clamping block is broken due to overlarge stress, the nut can be attracted by the magnet on the anti-falling rod in the falling process, the probability of finding the nut to fall off during maintenance and inspection can be greatly increased by matching various designs for preventing the nut from falling off, eliminates potential danger before danger occurs, prevents the bolt from loosening due to vibration or friction in use, the nut falls off from the screw and falls into the material or other machines to influence the operation safety and the product quality.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural view of the bolt of the present invention;
FIG. 3 is a schematic structural view of the clamping member inserted into the cavity according to the present invention;
FIG. 4 is a schematic structural view of a fastening member of the present invention;
fig. 5 is an enlarged view of a portion a in fig. 4.
1. The clamping device comprises a clamping piece, 2, a bolt head, 3, a screw rod, 4, a cavity, 5, a rectangular opening, 6, an anti-falling rod, 7, a rectangular magnet, 8, a first nut, 9, a thin screw rod, 10, a clamping arm, 11, a clamping block, 12, a second nut, 13, a strong-viscosity adhesive tape, 14 and bevel teeth.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1-5, the present embodiment is a combination bolt, which includes a bolt and a fastener 1, the bolt includes a bolt head 2 and a screw rod 3 connected to the bolt head 2, a cylindrical cavity 4 leading to the inside of the screw rod 3 is formed at the top end of the bolt head 2 along the axial direction of the screw rod 3, the length of the cavity 4 is two thirds of the length of the bolt, an external thread is formed on the outer surface of the screw rod 3, two rectangular openings 5 are symmetrically formed on the left and right sides of the rod body of the screw rod 3, the length of the two rectangular openings 5 is one half of the length of the screw rod 3, the two rectangular openings 5 are communicated with the cavity 4, an anti-falling rod 6 is connected below the two rectangular openings 5, the surface of the rod body of the anti-falling rod 6 is smooth, a rectangular magnet 7 is embedded on one side of the rod body of the anti-falling rod 6, the screw rod 3 provided with the external thread is connected below the anti-falling rod 6, a first nut 8 is connected to the outer surface of the screw rod 3 in a threaded manner; joint spare 1 is including the thin screw rod 9 that is equipped with the external screw thread, and the bottom of thin screw rod 9 is provided with two arm lock 10 that are 30 degrees to 60 degrees contained angles symmetry settings, and the bottom of two arm lock 10 is provided with two convex joint pieces 11 in the outside, and in joint spare 1 was by 2 top sliding insert cavities 4 of bolt head, threaded connection had nut two 12 on the thin screw rod 9 body of rod that lies in the 2 outsides of bolt head.
In this embodiment, strong adhesive tapes 13 are adhered to the inner side surfaces of the two clamping arms 10 and the clamping block 11; if the too big certain possibility of atress in joint piece 11 up end can make joint piece 11 fracture, cracked joint piece 11 probably falls into material or other machine insides, and cracked joint piece 11 can be stuck to strong viscidity adhesive tape 13, prevents to drop.
In this embodiment, the clip member 1 is integrally formed.
In this embodiment, the upper end surfaces of the two clamping blocks 11 are provided with bevel teeth 14; when the clamping block 11 contacts and clings to the bottom end of the first nut 8, if the first nut 8 is loosened, the first nut 8 rotates relative to the screw rod 3, and the bevel teeth 14 can provide a reaction force to the bottom end of the first nut 8 to slow down the loosening of the first nut 8.
In this embodiment, the diameter of the cavity 4 is larger than the diameter of the fine screw 9; allowing the thin screw 9 to be slidably inserted into the cavity 4.
In this embodiment, when the two clamping arms 10 are in a clamping state, the distance between the outer side end faces of the two clamping blocks 11 is smaller than the diameter of the cavity 4; the two clamping arms 10 are convenient for inserting the clamping piece 1 into the cavity 4 from the top end of the bolt head 2 in a sliding manner in a clamping state.
In this embodiment, when the two clamping arms 10 are in a natural state, the distance between the outer side end faces of the two clamping blocks 11 is greater than the diameter of the screw rod 3; after the clamping piece 1 is inserted into the cavity 4 from the top end of the bolt head 2 in a sliding mode, the thin screw rod 9 is rotated, the two clamping arms 10 are enabled to be in a natural state when rotating into the rectangular opening 5, and the distance between the end faces of the outer sides of the two clamping blocks 11 is larger than the diameter of the screw rod 3, so that the two clamping blocks 11 protrude out of the surface of the screw rod 3 at the moment.
The working process of the embodiment is as follows: the screw rod 3 penetrates through an object to be fastened, the nut I8 is screwed into the tail part of the screw rod 3, the nut I8 is tightly propped against the fastened object, the two clamping arms 10 are pressed, when the two clamping arms 10 are in a clamping state, the distance between the outer side end faces of the two clamping blocks 11 is smaller than the diameter of the cavity 4, the clamping piece 1 is conveniently inserted into the cavity 4 in a sliding mode from the top end of the bolt head 2, the two clamping arms 10 in the cavity 4 are still in the clamping state, the thin screw rod 9 is rotated, when the two clamping arms 10 are rotated into the rectangular opening 5, the two clamping arms 10 are in a natural state, as the distance between the outer side end faces of the two clamping blocks 11 is larger than the diameter of the screw rod 3, the two clamping blocks 11 protrude out of the surface of the screw rod 3 at the moment, the thin screw rod 9 is pulled upwards, the two clamping blocks 11 are only propped against the bottom end of the nut I8, and the screw rod body of the thin screw rod 9 positioned on the outer side of the bolt head 2 is in threaded connection with the nut II 12, the second nut 12 is screwed down to ensure that only the first nut 8 is propped against the two clamping blocks 11, the upper end surfaces of the two clamping blocks 11 are provided with bevel teeth 14, when the clamping blocks 11 are contacted and tightly attached with the bottom end of the first nut 8, if the first nut 8 rotates relative to the screw rod 3 when loosening occurs, the conical teeth 14 can provide a reaction force to the bottom end of the first nut 8 to slow down the loosening of the first nut 8, an anti-falling rod 6 is arranged below the two rectangular openings 5, the anti-falling rod 6 is used for preventing the two clamping blocks 11 from continuously falling after the force of the first nut 8 acting on the two clamping blocks 11 is too large to break, a rectangular magnet 7 is embedded on one side of the rod body of the anti-falling rod 6, even if the first nut 8 continuously falls off, the first nut can be attracted by the rectangular magnet 7, the probability that a worker finds that the first nut falls off during maintenance and inspection is greatly increased, potential danger is eliminated before danger occurs, and the problem that the operation safety and the product quality are influenced because the first nut 8 falls into materials or other machines is avoided.
The utility model adopts the mode that the clamping piece is matched with the bolt to prevent the nut in threaded connection with the screw rod from falling off, the clamping block in the clamping piece can support against the bottom end of the nut, when the nut is loosened, the clamping block can provide an upward force to the nut to prevent the nut from loosening, meanwhile, the bevel gear on the upper end surface of the clamping block can provide a reaction force to the bottom end of the nut to slow down the rotation generated when the nut is loosened, even if the clamping block is broken due to overlarge stress, the nut can be attracted by the magnet on the anti-falling rod in the falling process, the probability of finding the nut to fall off during maintenance and inspection can be greatly increased by matching various designs for preventing the nut from falling off, eliminates potential danger before danger occurs, prevents the bolt from loosening due to vibration or friction in use, the nut falls off from the screw and falls into the material or other machines to influence the operation safety and the product quality.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. A kind of combination bolt, its characteristic lies in: the anti-dropping bolt comprises a bolt and a clamping piece (1), wherein the bolt comprises a bolt head (2) and a screw rod (3) connected with the bolt head (2), a cylindrical cavity (4) leading to the inside of the screw rod (3) is formed in the top end of the bolt head (2) along the axial direction of the screw rod (3), the length of the cavity (4) is two thirds of the length of the bolt, external threads are arranged on the outer surface of the screw rod (3), two rectangular openings (5) are symmetrically formed in the left side and the right side of a rod body of the screw rod (3), the length of each rectangular opening (5) is half of the length of the screw rod (3), the two rectangular openings (5) are communicated with the cavity (4), an anti-dropping rod (6) is connected below the two rectangular openings (5), the surface of the rod body of the anti-dropping rod (6) is smooth, a rectangular magnet (7) is embedded in one side of the rod body of the anti-dropping rod (6), a screw (3) with external threads is connected with the lower part of the anti-falling rod (6), and a first nut (8) is connected with the outer surface of the screw (3) in a threaded manner; joint spare (1) is including thin screw rod (9) that are equipped with the external screw thread, the bottom of thin screw rod (9) is provided with two arm lock (10) that are 30 degrees to 60 degrees contained angles symmetry and set up, the bottom of two arm lock (10) is provided with two convex joint pieces (11) to the outside, in joint spare (1) is by bolt head (2) top sliding insertion cavity (4), threaded connection has nut two (12) on the thin screw rod (9) body of rod that lies in the bolt head (2) outside.
2. The assembling bolt according to claim 1, characterized in that the inner side surfaces of the two clamping arms (10) and the clamping block (11) are adhered with strong adhesive tapes (13).
3. A combination bolt according to claim 1, characterised in that the snap-in part (1) is made in one piece.
4. A combination bolt according to claim 1, characterised in that the upper end surfaces of the two clamping blocks (11) are provided with conical teeth (14).
5. A composite bolt according to claim 1, characterised in that the diameter of the cavity (4) is greater than the diameter of the shank (9).
6. A combination bolt according to claim 1, characterized in that, when the two clamping arms (10) are in the clamping state, the distance between the outer side end faces of the two clamping blocks (11) is smaller than the diameter of the cavity (4).
7. A combination bolt according to claim 1, characterized in that when the two clamping arms (10) are in a natural state, the distance between the outer side end faces of the two clamping blocks (11) is larger than the diameter of the screw (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022836873.XU CN214007744U (en) | 2020-12-01 | 2020-12-01 | Combined bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022836873.XU CN214007744U (en) | 2020-12-01 | 2020-12-01 | Combined bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214007744U true CN214007744U (en) | 2021-08-20 |
Family
ID=77308222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022836873.XU Active CN214007744U (en) | 2020-12-01 | 2020-12-01 | Combined bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214007744U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060379A (en) * | 2021-11-16 | 2022-02-18 | 广东电网有限责任公司 | a split pin |
-
2020
- 2020-12-01 CN CN202022836873.XU patent/CN214007744U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060379A (en) * | 2021-11-16 | 2022-02-18 | 广东电网有限责任公司 | a split pin |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20210353037A1 (en) | Molded screw | |
| CN214007744U (en) | Combined bolt | |
| CN104799908B (en) | Structure and its ultrasound knife are twisted for what ultrasound knife was connected | |
| JPH04504611A (en) | self-drilling fasteners | |
| CN108799296A (en) | Screw for thin iron plate | |
| CN204175756U (en) | nut | |
| CN204636482U (en) | What connect for ultrasound knife twists structure and ultrasound knife thereof | |
| CN210660884U (en) | Adjusting bolt | |
| CN209638196U (en) | Facilitate the bolt of taking-up after a kind of stripped thread | |
| CN203822797U (en) | Anti-dismantle bolt | |
| US4843927A (en) | Locking fastener for pivotal tool | |
| JPS63256374A (en) | Fixing device with vibrating tool for universal fixing and screw | |
| TWI436863B (en) | Removing tool | |
| CN213511610U (en) | Self-tightening assembly part | |
| CN219492785U (en) | Reusable long-term locking bolt | |
| CN104939892A (en) | Medical brain drill | |
| JPS6224811Y2 (en) | ||
| CN208073956U (en) | A kind of anti-skidding integrated locking nut | |
| CN109058257B (en) | Fastening piece | |
| CN216199655U (en) | Non-return screw | |
| CN211362043U (en) | A bathroom disassembly and assembly accessory with limited torque | |
| CN206761780U (en) | Dental implant system | |
| CN113334990B (en) | Wheel holder for vehicle | |
| CN213839227U (en) | Bolt assembly easy to tighten and disassemble | |
| CN115467889B (en) | High-tightness axial displacement driving screw |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |