CN209144792U - Anti-pulling joint and mixed connection structure of precast concrete component - Google Patents

Abstract

The utility model discloses a precast concrete component resistance to plucking connects, including plug connector, card firmware and jump ring, the plug connector includes the fixing base and fixes the round pin head on the fixing base, the inside of card firmware is equipped with the holding tank that is used for holding the jump ring, the jump ring can be at holding tank internal expansion and shrink, the position that corresponds with the holding tank on the lateral wall of round pin head is equipped with the draw-in groove with jump ring complex, the jump ring includes the jump ring main part and wears to establish the reinforcement in the jump ring main part. The utility model also discloses a hybrid connection structure. The anti-pulling joint and the mixed connection structure of the precast concrete component of the utility model are connected and fixed in a way of matching the snap spring and the clamping groove, so that the anti-pulling and anti-falling capacity is strong, and the connection strength between the concrete components is enhanced; the mode that adopts jump ring main part and reinforcement to combine has both strengthened the intensity of jump ring, has improved the resistance to plucking performance of whole joint, has kept the flexibility that the jump ring opened and kick-backed again, improves the grafting success rate.

Description

Pull-out joints and hybrid connection structures of precast concrete members

technical field

The utility model relates to a prefabricated concrete component connection structure, in particular to a prefabricated concrete component pull-out joint and a mixed connection structure.

Background technique

With the continuous improvement of construction requirements in the construction industry, the butt joint of precast concrete components is an indispensable process. The traditional way of jointing concrete piles is the welding of steel plates, and the steel parts are exposed, resulting in poor corrosion resistance. Solve the problem by virtue of the seal between the pile heads. In recent years, mechanical joints have been gradually studied and used due to their fast connection and corrosion resistance. However, when the existing mechanical joints receive a pull-out force, the internal components will be deformed under extrusion, resulting in the two connected piles. There is a gap between the end faces, which reduces the pullout resistance and shear resistance. The circlips of the existing locking circlip mechanical joints are relatively thin, which cannot meet the pullout resistance requirements of precast concrete components. After the circlips are thickened, the circlips are not easy to spring back, resulting in the failure of insertion.

Utility model content

Aiming at the above problems, the utility model researches and designs a pull-out joint and a mixed connection structure of a precast concrete member. The technical means adopted by the utility model are as follows:

An anti-extraction joint of prefabricated concrete components includes a plug connector, a clamping member and a circlip, the plug connector includes a fixing base and a pin head fixed on the fixing base, and the interior of the clamping member is provided with a circlip for accommodating the circlip The accommodating groove of the pin head can be expanded and contracted in the accommodating groove, and the position corresponding to the accommodating groove on the side wall of the pin head is provided with a catching groove which is matched with the circlip, and the pin head can be inserted into the clamping member And pass through the circlip, through the springback of the circlip to cooperate with the card slot, the pin head is limited to the circlip, the circlip includes a circlip body and a reinforcing piece that is penetrated on the circlip body, and the reinforcing piece is Arc tube, spherical with through hole, ellipsoid with through hole, cube with through hole, cylindrical or annular shape with through hole.

Further, the fastener is a sleeve-type reinforcement sleeve I, the accommodating groove is arranged on the inner wall of the reinforcement sleeve I, the fixing seat is fixed in the reinforcement sleeve II, and the reinforcement sleeve I and The bottom of the reinforcing steel sleeve II is provided with a limit end that can limit the end of the steel bar in it.

Further, the clamping member is a positioning sleeve with a hollow cylindrical structure, the positioning sleeve is fixed in the reinforcing rib sleeve I, the accommodating groove is arranged on the inner wall of the positioning sleeve, and the fixing seat is fixed in the reinforcing rib sleeve II. The bottoms of the reinforcing bar sleeves I and the reinforcing bar sleeves II are both provided with limiting ends that can limit the ends of the reinforcing bars in them.

Further, the external shapes of the reinforcing bar sleeve I and the reinforcing bar sleeve II are both twelve prismatic, and the outer sides of the open ends of the reinforcing bar sleeve I and the reinforcing bar sleeve II are provided with flanges.

Further, the side wall of the accommodating groove is inclined toward the end of the clamping member close to the plug-in member.

Further, the main body of the circlip is an annular shape with a notch, and two ends of the notch are provided with limiting protrusions for restraining the reinforcing member on the main body of the circlip.

A hybrid connection structure includes the pull-resistant joint of the precast concrete member of the present invention, and also includes an end plate I and an end plate II, the end plate I and the end plate II are both provided with threaded holes, and the reinforcement The open ends of the sleeve I and the reinforcement sleeve II are provided with external threads and are respectively fixed on the threaded holes of the end plate I and the end plate II, the end plate I and the end plate II are fixed to each other, the reinforcement sleeve I and the end plate II are fixed to each other. The external thread of the open end of the reinforcement sleeve II is a reverse thread.

A hybrid connection structure includes the pullout joint of the prefabricated concrete member of the present invention, and also includes an end plate I, an end plate II and a fixing sleeve, the accommodating groove is arranged inside the fixing sleeve, and the end plate I is on the There is a fixing hole I, the corresponding position of the end plate II is provided with a fixing hole II, the fixing sleeve is a sleeve-like structure, the open end of the fixing sleeve is fixed at the fixing hole I, and the open end of the fixing sleeve is Facing the end plate II, the fixing seat is fixed in the fixing hole II, and the end plate I and the end plate II are fixed to each other.

Further, a cylindrical positioning sleeve is fixed in the fixing sleeve, the accommodating groove is arranged on the inner wall of the positioning sleeve, and the end plate I is provided with a main rib end fixing hole I, the fixing hole I and the main rib. The end fixing hole I is connected to form a gourd-shaped hole, so that the end of the steel bar can slide from the fixing hole I into the fixing hole I of the main reinforcement end for fixing. The end plate II is provided with a main reinforcement end fixing hole II. It is connected with the fixing hole II at the end of the main reinforcement to form a gourd-shaped hole, so that the end of the reinforcement can slide from the fixing hole II into the fixing hole II at the end of the main reinforcement for fixing.

A hybrid connection structure includes the anti-extraction joint of a precast concrete member according to the present invention, the clamping member is a positioning sleeve of a hollow cylindrical structure, and the inner wall of the positioning sleeve is provided with an accommodating groove for accommodating a circlip, and the The end plate I is provided with a fixing hole I, the positioning sleeve is fixed in the fixing hole I, the fixing seat is fixed on the end plate II, and the end plate I and the end plate II are fixed to each other.

Compared with the prior art, the anti-pulling joint and the hybrid connection structure of the precast concrete components of the present invention have the following advantages:

1. The connection and fixation are carried out by means of the circlip and the groove, which has strong pull-out resistance and enhances the connection strength between the concrete components;

2. The inclined sidewall structure of the accommodating slot makes it easier for the circlip to expand when the pin head is inserted. When the circlip springs back and resets, it cooperates more closely with the circlip. The more the pull-off force is applied, the tighter the combination is, which further strengthens the connection. strength;

3. The combination of the circlip body and the reinforcement not only enhances the strength of the circlip, improves the pull-out resistance of the entire joint, but also maintains the flexibility of the circlip to open and rebound, improving the success rate of insertion.

Description of drawings

FIG. 1 is a schematic structural diagram of a pullout joint of a precast concrete member according to an embodiment of the present invention.

FIG. 2 is a schematic structural diagram of the reinforcing rib sleeve according to the first embodiment of the present invention.

FIG. 3 is a bottom view of FIG. 2 .

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3 .

FIG. 5 is a schematic structural diagram of the plug connector according to the embodiment of the present invention.

FIG. 6 is a plan view of FIG. 5 .

FIG. 7 is a left side view of FIG. 6 .

8 is a schematic structural diagram of a positioning sleeve according to an embodiment of the present invention.

FIG. 9 is a cross-sectional view taken along line B-B of FIG. 8 .

FIG. 10 is a schematic structural diagram of the circlip according to the embodiment of the present invention.

FIG. 11 is another schematic structural diagram of the circlip according to the embodiment of the present invention.

FIG. 12 is a schematic structural diagram of the hybrid connection structure according to the second embodiment of the present invention.

FIG. 13 is an enlarged view of C in FIG. 12 .

FIG. 14 is a schematic structural diagram of the reinforcing rib sleeve according to the second embodiment of the present invention.

FIG. 15 is a bottom view of FIG. 14 .

FIG. 16 is a D-D cross-sectional view of FIG. 15 .

17 is a schematic structural diagram of the hybrid connection structure according to the third embodiment of the present invention.

FIG. 18 is an enlarged view of E in FIG. 17 .

FIG. 19 is a schematic structural diagram of the fixing sleeve according to the third embodiment of the present invention.

FIG. 20 is a cross-sectional view taken along the line F-F of FIG. 19 .

FIG. 21 is a schematic structural diagram of the end plate according to the third embodiment of the present invention.

FIG. 22 is a right side view of FIG. 21 .

FIG. 23 is another structural schematic diagram of the end plate according to the third embodiment of the present invention.

FIG. 24 is a schematic structural diagram of the hybrid connection structure according to the fourth embodiment of the present invention.

Detailed ways

Example 1

As shown in FIG. 1 to FIG. 10 , an anti-extraction joint of a precast concrete member includes a plug connector 3 , a clamping member 5 and a circlip 4 , and the plug connector 3 includes a fixed seat 31 and a The pin head 32, the interior of the fastener 5 is provided with an accommodating groove 51 for accommodating the circlip 4, the circlip 4 can expand and contract in the accommodating groove, and the side wall of the pin head 32 is connected to the accommodating groove 51. The corresponding position is provided with a card slot 33 that cooperates with the clip spring 4, the pin head 32 can be inserted into the clip member 5 and pass through the clip spring 4, and the clip spring 4 rebounds to cooperate with the clip slot 33, and the pin head 32 is limited. Located in the clip 5, the clip 4 includes a main body 41 of the clip and a reinforcing piece 42 which is inserted through the main body 41 of the clip. The reinforcing piece 42 is an arc tube, a spherical shape with a through hole, and a The ellipsoidal shape of the hole, the cubic shape with the through hole, the cylindrical or annular shape with the through hole. The end of the pin head 32 is hemispherical, parabolic or truncated, and can also be other irregular curved surfaces, as long as its angle can expand the circlip 4.

The clamping member 5 is a positioning sleeve with a hollow cylindrical structure, the positioning sleeve is fixed in the reinforcing rib sleeve I1, the accommodating groove 51 is arranged on the inner wall of the positioning sleeve, and the fixing seat 31 is fixed in the reinforcing rib sleeve II2. The bottoms of the reinforcing bar sleeve I1 and the reinforcing bar sleeve II2 are both provided with a limit end 11 that can limit the end of the reinforcing bar in it. The limit end 11 can be an inward flange matched with a steel rod pier head, a tapered hole matched with a steel strand anchor head, or a thread matched with a threaded steel with an external thread at the end. As long as the end of the steel bar can be limited in the hole, this embodiment is described by taking the limit end matched with the steel bar pier head as an example. The exterior of the reinforcing bar sleeves I1 and the reinforcing bar sleeves II2 are prism-shaped, and the number of edges can be set as required, preferably octagonal prisms, ten prisms and twelve prisms. The open ends of the reinforcing bar sleeves I1 and the reinforcing bar sleeves II2 A circular flange 12 is provided, and the prismatic design is convenient for assembly, which increases the cohesion force of the concrete to the reinforcing bar sleeve, and at the same time, the design of the flange increases the axial force area of the reinforcing bar sleeve. When the positioning sleeve is used as the fastener 5, the positioning sleeve can also be fixed on other structures for connection.

The cross-section of the circlip 4 can be circular, the cross-section of the bottom surface of the grommet 33 is a corresponding semicircle, the cross-section of the circlip 4 can also be other shapes, and the shape of the corresponding grommet 33 is the same as that of the circlip 4 . Correspondingly, the side wall of the accommodating groove 51 is inclined to the opening side of the rib sleeve I1, and the side wall of the accommodating groove 51 may be a plane in the axial direction, or a curved surface as required. During the insertion of the pin head 32, the conical inner side wall of the accommodating groove 51 gives the circlip 4 a radially outward component force, which makes the circlip 4 easier to expand. After the pin head is inserted, it is subjected to a pulling force At the time, the side wall of the accommodating groove 51 close to the opening side of the fixing rib sleeve I1 gives the circlip 4 a radially inward component force, so that the circlip 4 and the groove 33 cooperate closely, forming a self-tightening structure and enhancing the anti-pull-off performance.

As shown in FIG. 10 and FIG. 11 , the reinforcing member 42 is spherical or cylindrical, of course, it can also be set to ellipsoid or cubic, and can also be set to other shapes as required.

The circlip body 41 is an annular shape with a notch, and two ends of the notch are provided with limiting protrusions 43 for restraining the reinforcing member on the circlip body. Specifically, it can be a pier head structure, or a bending structure at the end, or other forms of protrusions can be provided as required.

In this embodiment, the positioning sleeve is fixed in the reinforcing bar sleeve I1 by threads, and the fixing seat 31 is also fixed in the reinforcing bar sleeve II2 by threads. The reinforcing bar sleeve I1 and the reinforcing bar sleeve II2 can be set to the same structure , it can also be set to different structures according to needs, and the bottom end of the reinforcing rib sleeve can be set to a prismatic shape to enhance the gripping force and facilitate the clamping operation during the assembly process of the positioning sleeve before tensioning. The bottom of the fixing seat 31 is provided with an inner concave space 34, and under the condition of achieving the same strength, the amount of materials used is reduced, and the cost is saved. The pin head 32 is connected to the fixed seat 31 through the conical connecting portion 35 , and the outer end of the positioning sleeve is provided with a tapered surface 52 corresponding to the connecting portion 35 , and the tapered surface also guides the insertion of the pin head 32 . Therefore, the connecting portion 35 is provided with a symmetrically disposed pin clamping plane 36, and similarly, the outer end of the positioning sleeve is also provided with a symmetrically disposed positioning sleeve clamping plane. The edges of each component are chamfered as required, which will not be repeated here. When using the mechanical joint described in this embodiment to connect the precast concrete members, the modified epoxy resin can be evenly spread on the connecting end face, and the modified epoxy resin can be injected into the reinforcement sleeve I1 to enhance the sealing performance. Corrosion resistance while improving connection strength.

Of course, the accommodating groove can also be directly arranged on the inner wall of the reinforcing rib sleeve I1, and the fixing seat 31 is fixed in the reinforcing rib sleeve II2. At this time, the fastener 5 is a sleeve-type reinforcing rib sleeve I1.

Embodiment 2

As shown in FIGS. 12 to 16 , a hybrid connection structure includes the pull-out joint of the precast concrete member described in the first embodiment, and also includes an end plate I7 and an end plate II, and the end plate I7 is provided with a fixing hole I71 , the corresponding position of the end plate II8 is provided with a fixing hole II81, the positioning sleeve is fixed in the fixing rib sleeve I1, the accommodating groove 51 is arranged on the inner wall of the positioning sleeve, and the fixing seat 31 is fixed on the fixing rib In the sleeve II2, the bottoms of the reinforcing bar sleeve I1 and the reinforcing bar sleeve II2 are provided with a limit end 11 that can limit the end of the reinforcing bar in it, and the open ends of the reinforcing bar sleeve I1 and the reinforcing bar sleeve II2 are provided. Both are provided with external threads and are respectively fixed on the threaded holes of end plate I7 and end plate II8. The end plate I7 and end plate II8 are fixed to each other, which can be fixed by full welding, or can be fixed between end plate I7 and end plate II8 Apply modified epoxy resin between them for bonding and fixing. The outer threads of the open ends of the reinforcing bar sleeve I1 and the reinforcing bar sleeve II2 are reverse threads. The edge of the end plate I7 and the end plate II8 are provided with skirt plates 74 for wrapping the ends of the piles. For the end board bonded with modified epoxy resin, annular grooves can be provided on the end face to enhance the bonding strength. The interconnected precast concrete members can be various precast concrete piles such as pipe piles, solid piles, special-shaped piles, etc.

Embodiment 3

As shown in FIGS. 17 to 23 , a hybrid connection structure includes the pull-out joint of the precast concrete member described in the first embodiment, and also includes an end plate I7 , an end plate II8 and a fixing sleeve 6 , and the accommodating groove 51 is provided in the Inside the fixing sleeve, the end plate I7 is provided with a fixing hole I71, the corresponding position of the end plate II8 is provided with a fixing hole II81, the fixing sleeve is a sleeve-like structure, and the open end of the fixing sleeve is fixed At the fixing hole I71 and the open end of the fixing sleeve faces the end plate II8, the fixing seat is fixed in the fixing hole II81, and the end plate I7 and the end plate II8 are fixed to each other.

A cylindrical positioning sleeve is fixed in the fixing sleeve 6, the accommodating groove 51 is arranged on the inner wall of the positioning sleeve 6, and the end plate I7 is provided with a main rib end fixing hole I72, the fixing hole I71 and the main rib The end fixing hole I72 is connected to form a gourd-shaped hole, so that the end of the steel bar can slide from the fixing hole I71 into the main reinforcement end fixing hole I72 for fixing. The end plate II8 is provided with a main reinforcement end fixing hole II82. The fixing hole II81 It is connected with the fixing hole II82 at the end of the main reinforcement to form a gourd-shaped hole, so that the end of the reinforcement can slide from the fixing hole II81 into the fixing hole II82 at the end of the main reinforcement for fixing. Only the gourd-shaped holes may be provided on the end plate, or separate fixing holes and the gourd-shaped holes may be provided at intervals, which can be set as required. Skirts may be provided at the edges of the end plate I7 and the end plate II8. The structures of the plug connector 3, the positioning sleeve and the retaining spring 4 in this embodiment are the same as those in the first embodiment.

Embodiment 4

As shown in Figure 24, a hybrid connection structure includes an end plate I7 and an end plate II8 connected to the main reinforcement of the pile, and also includes a plug connector 3, a positioning sleeve 5 and a circlip 4. The end plate I7 is provided with Fixing hole I71, the positioning sleeve 5 is a hollow cylindrical structure, the positioning sleeve 5 is fixed in the fixing hole I71, the plug connector 3 includes a plug 31 and a fixing seat 31, and the fixing seat 31 is fixed on the end plate II8 The fixing method can be various fixing methods such as welding, screw fixing, etc. The inner wall of the positioning sleeve 5 is provided with an accommodating groove 51 for accommodating the retaining spring 4. The retaining spring 4 can expand and contract in the accommodating groove 51. The side wall of the pin head 32 corresponds to the accommodating groove 51. The position is provided with a card slot 33 that cooperates with the circlip 4, the pin head 32 can be inserted into the positioning sleeve 5 and pass through the circlip 4, and the circlip 4 rebounds to cooperate with the card groove 33 to limit the pin head 32 to the position Set of 5. The edge of the end plate I7 and the end plate II8 are fixed with a skirt plate that fits with the end of the pile, and the end plate I7 and the end plate II8 are fixed to each other by full edge welding or glue. Hollow piles are preferably connected and fixed with adhesive steel glue. While eliminating the gap between the outer wall and end plates of the pile, the gap between the inner wall and end plates of the pile is avoided, the sealing of the butt end of the pile is realized, and the prestressed main reinforcement is prevented from being eroded. Greatly reduces the safety risk and prolongs the service life of the pile.

As a preferred solution, the end plate II8 is provided with a fixing hole II81, the fixing base 31 is a screwing base, the screwing base is fixed in the fixing hole II21 by a thread, and the positioning sleeve 5 is fixed by a thread. inside hole I71.

The pin head 32 is connected with the screw base 32 through a truncated truncated connecting portion 34. The end portion of the inner side wall of the positioning sleeve 5 is provided with a conical surface that cooperates with the connecting portion 35, and the side surface of the connecting portion 35 is provided with a symmetrical The provided clamping plane 36 is convenient for twisting and assembling with a clamping tool. One end of the screw base 32 connected to the connecting portion 34 is provided with a positioning flange I, and one end of the positioning sleeve 5 close to the end plate II8 is provided with a positioning flange I. The positioning flange II is provided with symmetrically arranged rotation notches on the end surface of the positioning flange II, which is convenient for twisting and assembling with tools. The end faces of the positioning flange I and the positioning flange II are flush with the end faces of the end plate II8 and the end plate I7, respectively. The end of the pin head 32 is hemispherical, parabolic or truncated, and can also be other irregular curved surfaces, as long as the angle can expand the circlip. The bottom of the swivel base 32 is provided with a concave space, which reduces the amount of materials and saves costs under the condition of achieving the same strength.

The end plate I7 is provided with a main rib end fixing hole I72. The diameter of the fixing hole I71 is larger than the maximum diameter of the main rib end. A stepped hole whose diameter is larger than the maximum diameter of the end of the main reinforcement. The fixing hole I72 at the end of the main reinforcement is connected to the fixing hole I71 through the main reinforcement installation slideway I to form a structure similar to a gourd-shaped hole. Insert, slide into the main rib end fixing hole I72 through the main rib installation slide I, and directly clamp the end of the rebar in it due to the structure of the stepped hole; the end plate II8 is provided with the main rib end fixing hole II82, the diameter of the fixing hole II81 is larger than the maximum diameter of the main rib end, and the main rib end fixing hole II82 is a stepped hole with the diameter of the small diameter part smaller than the maximum diameter of the main rib end and the large diameter part larger than the maximum diameter of the main rib end, so The main rib end fixing hole II82 is connected with the fixing hole II81 through the main rib mounting slideway II23, and its principle and assembly method are the same as the end plate I7. As a preferred solution, in the connected state, the positions of the main rib end fixing holes I72 correspond to the positions of the main rib end fixing holes II82. That is to say, from the perspective of the respective connecting end faces of the end plate I7 and the end plate II8, the fixing hole I71 and the main rib end fixing hole I72 in the circumferential direction are in the circumferential order of the fixing hole II81 and the main rib end fixing hole II82. The upward sequence is reversed, as shown in Figures 9 and 10. The distance between the mechanical connection point and the anchor point of the main reinforcement is minimized by the adjacent connection setting of the fixing hole and the main reinforcement fixing hole, without increasing the thickness of the end plate or the anchoring reinforcement to ensure the pullout resistance, and the hole layout of the end plate I7 and the end plate II8 The reverse setting is performed so that the positions of the main rib end fixing holes I72 and the main rib end fixing holes II82 correspond to each other, so as to effectively realize the linear connection of the main rib. The structures of the plug connector 3 , the positioning sleeve 5 and the retaining spring 4 in this embodiment are the same as those in the first embodiment.

The above-mentioned embodiments are only to describe the preferred embodiments of the present invention, and do not limit the scope of the present invention. On the premise of not departing from the design spirit of the present invention, those of ordinary skill in the art can Such deformations and improvements shall fall within the protection scope determined by the claims of the present invention.

Claims (10)

1. a kind of precast concrete resistance to plucking connector, it is characterised in that: including plug connector, holding firmware and circlip, the grafting Part includes fixing seat and the plunger that is fixed in fixing seat, and the inside of the holding firmware is equipped with the holding tank for accommodating circlip, The circlip can be expanded and be shunk in holding tank, and position corresponding with holding tank is equipped with and matches with circlip on the side wall of the plunger Circlip can be inserted into holding firmware and be passed through to the card slot of conjunction, the plunger, cooperated by circlip rebound with card slot, plunger is limited in In holding firmware, the circlip includes circlip main body and the reinforcer that is threaded through in circlip main body, and the reinforcer is curved pipe, band There are spherical shape, the elliposoidal with through-hole, the cube with through-hole, the cylinder or annular with through-hole of through-hole.

2. precast concrete resistance to plucking connector according to claim 1, it is characterised in that: the holding firmware is socket type Solid muscle set I, the holding tank is arranged on the inner wall of solid muscle set I, and the fixing seat is fixed in solid muscle set II, the solid muscle The bottom of set I and solid muscle set II, which is equipped with, to limit the positive stop end in it for steel bar end.

3. precast concrete resistance to plucking connector according to claim 1, it is characterised in that: the holding firmware is hollow circle The positioning sleeve of rod structure, the positioning sleeve are fixed in solid muscle set I, and the holding tank is arranged on the inner wall of positioning sleeve, described Fixing seat is fixed in solid muscle set II, and the bottom of the solid muscle set I and solid muscle set II is equipped with and can limit steel bar end at it Interior positive stop end.

4. precast concrete resistance to plucking connector according to claim 2 or 3, it is characterised in that: described to consolidate muscle set I and consolidate The shape of muscle set II is 12 prismatic, and the outside of the open end of the solid muscle set I and solid muscle set II is equipped with flange.

5. precast concrete resistance to plucking connector according to claim 1, it is characterised in that: the side wall of the holding tank to One end of the close plug connector of holding firmware tilts.

6. precast concrete resistance to plucking connector according to claim 1, it is characterised in that: the circlip main body be with The annular of notch, two end points of the indentation, there are equipped with the retention bead for being limited in reinforcer in circlip main body.

7. a kind of Hybrid connections structure, it is characterised in that: connect including precast concrete resistance to plucking described in claim 2 or 3 Head further includes end plate I and end plate II, threaded hole, the solid muscle set I and solid muscle set II is equipped on the end plate I and end plate II Open end be equipped with external screw thread and be separately fixed on the threaded hole of end plate I and end plate II, the end plate I and end plate II are mutual Fixed, the external screw thread that the solid muscle set I covers II open end with solid muscle is left-hand thread.

8. a kind of Hybrid connections structure, it is characterised in that: including precast concrete resistance to plucking described in claim 1,5 or 6 Connector further includes end plate I, end plate II and fixing sleeve, and the inside of fixing sleeve is arranged in the holding tank, and the end plate I is equipped with Fixation hole I, the corresponding position of the end plate II are equipped with fixation hole II, and the fixing sleeve is sleeve-like configuration, the fixing sleeve Open end be fixed at fixation hole I and the open end of fixing sleeve is towards end plate II, the fixing seat is fixed in fixation hole II, The end plate I and end plate II are fixed to each other.

9. Hybrid connections structure according to claim 8, it is characterised in that: be fixed with the positioning of tubular in the fixing sleeve Set, the holding tank are set on the inner wall of positioning sleeve, and the end plate I is equipped with main reinforcement fixed end-hole I, the fixation hole I With main reinforcement fixed end-hole I connection form pear-shaped hole, enable steel bar end from fixation hole I slide into main reinforcement fixed end-hole I into Row is fixed, and end plate II is equipped with main reinforcement fixed end-hole II, and the fixation hole II and the connection of main reinforcement fixed end-hole II form calabash Reed shape hole enables steel bar end to slide into main reinforcement fixed end-hole II from fixation hole II and is fixed.

10. a kind of Hybrid connections structure, it is characterised in that: including precast concrete resistance to plucking described in claim 1,5 or 6 Connector, the holding firmware are the positioning sleeve of hollow cylindrical structure, and the inner wall of the positioning sleeve is equipped with the appearance for accommodating circlip It receives slot, states end plate I equipped with fixation hole I, the positioning sleeve is fixed in fixation hole I, and the fixing seat is fixed on end plate II, The end plate I and end plate II are fixed to each other.