CN211340415U

CN211340415U - Expansion joint structure of adjacent anti-collision guardrails

Info

Publication number: CN211340415U
Application number: CN201922058145.8U
Authority: CN
Inventors: 陈婧; 朱凯翔; 韩彩霞
Original assignee: Nantong Greatship Marine Technology Co ltd
Current assignee: Nantong Greatship Marine Technology Co ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-08-25
Anticipated expiration: 2029-11-26

Abstract

The utility model relates to an adjacent anti-collision guardrail expansion joint structure, which comprises guardrail bodies, wherein the adjacent guardrail bodies are connected through a connecting pipe, and a pre-buried pipe is arranged in the guardrail bodies; the connecting pipe is arranged in the embedded pipe; the connecting pipe comprises a first pipeline and a second pipeline; the first pipeline is sleeved outside the second pipeline; one end of the first pipeline is provided with a clamping joint; one end of the second pipeline is provided with a connector; the clamping joint is provided with a clamping piece; the clamping piece comprises a clamping block and a spring; two sliding grooves are formed in the clamping joint; the clamping block is arranged in the sliding groove in a sliding manner; one end of the spring is connected with the clamping block, and the other end of the spring is connected with the bottom of the sliding groove; the first pipeline and the second pipeline arranged on the adjacent guardrail body are connected through the fixing head, and one end of the fixing head is in threaded connection with the connecting head; and one opposite side of the adjacent guardrail bodies is provided with a fixing piece for limiting the movement of the first pipeline. The utility model discloses have the effect that improves the joint strength of guardrail expansion joint connecting pipe.

Description

Expansion joint structure of adjacent anti-collision guardrails

Technical Field

The utility model belongs to the technical field of the technique of bridge construction and specifically relates to a neighbouring anticollision barrier expansion joint structure is related to.

Background

At present, in order to meet the requirements of deck deformation, expansion joints are usually provided between the two beam ends, between the beam ends and the abutment or at the hinge points of the bridge, enabling the adjustment of the displacements and couplings between the superstructure caused by the vehicle load and the bridge building materials. Because the setting of bridge expansion joint for the guardrail on the bridge also corresponds and sets the expansion joint structure to in order to adapt to the deformation of bridge floor.

The telescopic of the anti-collision guardrail cross beam at the position of the existing bridge expansion joint is formed by splicing the sleeve pipes, the length of the telescopic splicing sleeve pipe of the cross beam is determined by the telescopic amount of the expansion joint, and the splicing sleeve pipe and the cantilever overhanging cross beam are connected for stretching through common bolts after being grooved due to the large span of the cross beam, so that the anti-bending rigidity is lower, the longitudinal anti-bending rigidity of the whole cross beam is small, and the anti-collision capacity is weak.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing an adjacent anticollision barrier expansion joint structure can effectively solve the pipe connection of bridge broken joint and expansion joint department, and the joint strength between the pipeline is high.

The above technical purpose of the present invention can be achieved by the following technical solutions:

an adjacent anti-collision guardrail expansion joint structure comprises guardrail bodies, wherein the adjacent guardrail bodies are connected through a connecting pipe, and a horizontal embedded pipe is arranged in each guardrail body; two ends of the embedded pipe are respectively fixed with two sides of the guardrail body; the connecting pipe is arranged in the embedded pipe; the connecting pipe comprises a first pipeline and a second pipeline; the first pipeline is sleeved outside the second pipeline and is in sliding fit with the second pipeline; one end of the first pipeline is provided with a clamping joint; one end of the second pipeline is provided with a connector; the connector and the two ends of the clamping connector in the horizontal direction are arranged in a penetrating manner; the clamping joint is provided with a clamping piece; the clamping piece comprises a clamping block and a spring; two sliding grooves are symmetrically formed in the outer surface of the clamping head and around the axis of the clamping head; the clamping block is arranged in the sliding groove in a sliding manner; one end of the spring is connected with the clamping block, and the other end of the spring is connected with the bottom of the sliding groove; the end face of the fixture block, which is far away from the spring, is an inclined face, and one side, which is far away from the first pipeline, of the inclined face is close to the spring; the first pipeline is connected with a second pipeline arranged on the adjacent guardrail body through a fixing head; the fixed head comprises a first sleeve and a second sleeve; the inner wall of the first sleeve is attached to the outer wall of the first pipeline; the second sleeve is arranged on one side of the first sleeve, and the inner diameter of the second sleeve is larger than that of the first sleeve; the second sleeve is in threaded connection with the connector; and one side of the adjacent guardrail bodies, which faces to each other, is provided with a fixing piece for limiting the movement of the first pipeline.

Through adopting above-mentioned technical scheme, at first at this internal pre-buried pipe that has set up of guardrail, connect through the connecting pipe in the fracture department of adjacent guardrail body, install the fixed head on the joint through the mode of joint, it is fixed with the connector with the fixed head other end again, the junction is difficult for droing, and fixed mode is simple, and joint strength is high.

First pipeline and second pipeline sliding fit can regulate and control the length of connecting pipe, can adapt to the broken joint interval of guardrail. Firstly, a connecting pipe is inserted from one end of an embedded pipe, so that a first pipeline enters the embedded pipe firstly until one side of a connecting head is abutted against one side of a guardrail body, the first pipeline can extend out from the other end of the embedded pipe, the first pipeline is pulled, and a fixing head is pressed from one side of a clamping head to one side close to the first pipeline, so that a first sleeve extrudes a clamping block, a spring is compressed, when a second sleeve is moved away from the upper part of the clamping block, the clamping block extends out under the action of the spring, the fixing head on the guardrail body is in threaded connection with the connecting head on an adjacent guardrail body, one side of the clamping block close to the first pipeline is abutted against the first sleeve, so that two adjacent first pipelines and two adjacent second pipelines are connected and fixed, the fixing mode is simple, the operation is convenient and fast, the improvement of the installation efficiency is facilitated, a fixing piece is arranged, and the movement of the first pipeline can be limited, make first pipeline be difficult for removing, the installation is firm, sliding connection's relation during owing to second pipeline and first pipeline for relative motion can be carried out between first pipeline and the second pipeline, in order to adapt to the structure at expansion joint.

The utility model is further arranged that two inner sides of the guardrail body are provided with fixing holes matched with the embedded pipes; countersunk grooves with the diameter larger than the aperture of the fixing holes are formed in the two outer sides of the guardrail body; and a fixed sleeve in threaded connection with the end part of the embedded pipe is arranged in the countersunk groove.

Through adopting above-mentioned technical scheme, set up the fixed orifices, with buried pipe from one side cartridge of guardrail body, fixed cover is rotated to the rethread, and is further fixed at the both ends of buried pipe in advance, and fixed mode is simple, and fixed firm for the connecting pipe can be connected along buried pipe's passageway.

The utility model is further arranged that one side of the clamping joint close to the first pipeline is provided with an arc-shaped groove; the fixing piece comprises a threaded column, a mounting plate and an arc-shaped plate; the threaded column is arranged on one side of the fixed sleeve, and the extending direction of the threaded column is parallel to the extending direction of the first pipeline; the mounting plate is provided with a waist-shaped hole; one end of the threaded column penetrates through the waist-shaped hole and fixes the mounting plate through a fixing nut; the lower terminal surface and the arc groove looks adaptation of mounting panel are located to the arc.

Through adopting above-mentioned technical scheme, set up the screw thread post for the screw thread post passes the waist type hole of mounting panel, makes the arc can keep certain distance with the connecting pipe, after first pipeline is fixed, through unscrewing fixation nut, makes the mounting panel can adjust downwards, makes the arc can aim at the overhead arc wall of joint, screws up fixation nut again and fixes the mounting panel, fixes first pipeline, makes the difficult skew of first pipeline, connects reliably.

The utility model is further arranged that one side of the clamping joint close to the first pipeline is provided with a fixing ring; the fixing ring and the clamping block are arranged at intervals; one side of the fixing ring, which is close to the clamping block, is abutted against one side of the first sleeve.

Through adopting above-mentioned technical scheme, set up solid fixed ring, after fixed head and connector screw thread tighten, solid fixed ring and one side butt of first sleeve, the fixture block is fixed tightly to the inside and outside of first sleeve simultaneously with solid fixed ring for connect more reliably, the difficult emergence of fixed head is not hard up, can keep with the fixed connection of connector, the stability ability of structure is higher.

The utility model is further arranged that one end of the joint head departing from the first pipeline is provided with a splicing pipe; the outer wall of the insertion pipe is attached to the inner wall of the connector, and a chamfer is arranged at the end of the insertion pipe.

Through adopting above-mentioned technical scheme, set up the pipe of pegging graft, can be favorable to improving the second pipeline on first pipeline and the adjacent guardrail body and be connected for the connection leakproofness of first pipeline and second pipeline is higher, and is more convenient when the cable is installed to the later stage.

The utility model is further arranged that the outer wall of the first pipeline is provided with a butting ring; the outer wall of the abutting ring is attached to the inner wall of the embedded pipe.

Through adopting above-mentioned technical scheme, set up the butt ring for first pipeline is placed more steadily in pre-buried intraductal, when connecting first pipeline and second pipeline, and the difficult production of junction rocks, is favorable to improving the reliable and stable nature of junction.

The utility model is further arranged that a support plate for supporting the embedded pipe is arranged in the guardrail body; the backup pad is provided with a plurality ofly along the length direction interval of guardrail body.

Through adopting above-mentioned technical scheme, set up the backup pad, can improve the support to pre-buried pipe for pre-buried pipe is fixed more reliably stable, and overall structure is more firm.

The utility model discloses further set up to, the backup pad be with the arc of buried tub of outer wall adaptation in advance, and one side of backup pad and buried tub of laminating in advance is equipped with the rubber pad.

Through adopting above-mentioned technical scheme, be the arc with the backup pad setting for the area of contact of backup pad and pre-buried pipe is bigger, and the stability of support is higher, and sets up the rubber pad, is favorable to improving the frictional force between pre-buried pipe and the backup pad, and is better to the support effect of pre-buried pipe.

To sum up, the utility model discloses a beneficial technological effect does:

1. the embedded pipes are arranged in the guardrail bodies, the broken joints of the adjacent guardrail bodies are connected through the connecting pipes, the fixing heads are arranged on the clamping joints in a clamping mode, the other ends of the fixing heads are fixed with the connecting heads, the connecting parts are not easy to fall off, the fixing mode is simple, and the connecting strength is high;

2. the threaded column is arranged, so that the threaded column penetrates through the waist-shaped hole of the mounting plate, the arc plate can keep a certain distance with the connecting pipe, after the first pipeline is fixed, the mounting plate can be adjusted downwards by unscrewing the fixing nut, the arc plate can be aligned to the arc groove on the clamping head, then the fixing nut is screwed down to fix the mounting plate, and the first pipeline is fixed, so that the first pipeline is not easy to deviate and is reliable in connection;

3. the supporting plate is arranged, so that the supporting of the embedded pipe can be improved, the embedded pipe is more reliable and stable in fixation, and the overall structure is more stable.

Drawings

FIG. 1 is a schematic view of the overall structure of the embodiment;

FIG. 2 is an enlarged schematic view of A of FIG. 1;

FIG. 3 is a schematic illustration of a support plate structure of an embodiment;

fig. 4 is an enlarged schematic view of B in fig. 1.

Reference numerals: 1. a guardrail body; 11. a fixing hole; 12. a countersunk groove; 13. fixing a sleeve; 14. a support plate; 141. a rubber pad; 2. pre-burying a pipe; 3. a connecting pipe; 31. a first conduit; 311. a clamping head; 312. a chute; 313. a fixing ring; 314. inserting a pipe; 315. a butting ring; 316. an arc-shaped slot; 32. a second conduit; 321. a connector; 4. a clamping piece; 41. a clamping block; 42. a spring; 5. a fixed head; 51. a first sleeve; 52. a second sleeve; 6. a fixing member; 61. a threaded post; 62. mounting a plate; 621. a kidney-shaped hole; 63. an arc-shaped plate; 64. and (5) fixing the nut.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Refer to fig. 1, do the utility model discloses an adjacent anticollision barrier expansion joint structure, including guardrail body 1. Connect through connecting pipe 3 between the adjacent guardrail body 1, and pre-buried pipe 2 that has the level setting in guardrail body 1.

Referring to fig. 2, two inner sides of the guardrail body 1 are provided with fixing holes 11 matched with the embedded pipes 2, two outer sides of the guardrail body 1 are provided with countersunk grooves 12 with diameters larger than the diameters of the fixing holes 11, and the countersunk grooves 12 are rotatably connected with fixing sleeves 13 connected with the end parts of the embedded pipes 2 in a threaded manner.

Referring to fig. 3, a plurality of support plates 14 are fixed in the guardrail body 1, and the support plates 14 are spaced apart from each other along the length direction of the guardrail body 1. The upper end face of the supporting plate 14 is arc-shaped and matched with the outer wall of the embedded pipe 2, and a layer of rubber pad 141 is bonded on one side, which is attached to the embedded pipe 2, of the supporting plate 14.

Referring to fig. 2, the connection pipe 3 is inserted into the interior of the embedded pipe 2 from one end of the embedded pipe 2. The connection pipe 3 includes a first pipe 31 and a second pipe 32 inserted into the first pipe 31 and slidably connected to the first pipe 31. First pipeline 31 deviates from the one end of second pipeline 32 and is fixed with joint 311, and the one end that second pipeline 32 deviates from first pipeline 31 is fixed with connector 321, and the external screw thread has been attacked to the surface of connector 321. The two ends of the connector 321 and the card connector 311 in the horizontal direction are all arranged in a penetrating way. The card connector 311 is provided with a card member 4. The outer surface of the clamping head 311 is symmetrically provided with two sliding grooves 312 about the axis of the clamping head 311, and the clamping member 4 comprises a clamping block 41 slidably disposed in the sliding grooves 312 and a spring 42 connecting the clamping block 41 and the sliding grooves 312. One end of the spring 42 is fixedly connected with the fixture block 41, and the other end of the spring 42 is fixedly connected with the groove bottom of the sliding groove 312. The end surface of the latch 41 facing away from the spring 42 is an inclined surface, and one side of the inclined surface facing away from the first conduit 31 is lower than one side of the inclined surface close to the first conduit 31. One side of the clamping head 311 close to the first pipeline 31 is formed with a fixing ring 313, the fixing ring 313 and the clamping block 41 are arranged at intervals, and after the first pipeline 31 on one guardrail body 1 is connected with the second pipeline 32 on the other guardrail body 1, one side of the fixing ring 313 close to the clamping block 41 is abutted against one side of the first sleeve 51. One end of the clamping joint 311 departing from the first pipeline 31 is formed with an insertion pipe 314 with a diameter smaller than that of the first pipeline 31, the outer wall of the insertion pipe 314 is attached to the inner wall of the connecting head 321, and a chamfer is arranged at the end of the insertion pipe 314 departing from the clamping joint 311.

Referring to fig. 4, the outer wall of the first pipe 31 is formed with a contact ring 315, and the outer wall of the contact ring 315 is attached to the inner wall of the embedded pipe 2.

Referring to fig. 2, a first pipe 31 is connected to a second pipe 32 provided on the adjacent barrier body 1. The retaining head 5 comprises a first sleeve 51 which is attached to the outer wall of the first pipe 31 and a second sleeve 52 which is formed on the side of the first sleeve 51 facing away from the first pipe 31. The second sleeve 52 has an inner diameter larger than that of the first sleeve 51. The inner side wall of the second sleeve 52 on the side facing away from the first sleeve 51 is in threaded connection with the outer side wall of the connector 321.

Referring to fig. 2, a fixing member 6 is fixed to the opposite side of the adjacent barrier body 1. The clamping connector 311 is provided with an arc-shaped slot 316 at one side close to the first pipe 31. The fixing member 6 includes a threaded post 61 fixedly disposed on one side of the fixing sleeve 13, a mounting plate 62 fixedly mounted on the threaded post 61, and an arc-shaped plate 63 formed at the bottom of the mounting plate 62. The extending direction of the threaded post 61 is parallel to the extending direction of the first pipe 31. Waist-shaped holes 621 are formed in the mounting plate 62, and the length direction of the waist-shaped holes 621 is perpendicular to the length direction of the threaded columns 61. One end of the threaded post 61 passes through the kidney hole 621 and fixes the mounting plate 62 by the fixing nut 64. The arcuate plate 63 fits into the arcuate slot 316.

The implementation principle of the embodiment is as follows: firstly, the embedded pipe 2 is inserted from one side of the guardrail body 1, and then two ends of the embedded pipe 2 are fixed through the fixing sleeve 13. Inserting the connecting pipe 3 from one end of the embedded pipe 2, enabling the first pipeline 31 to enter the embedded pipe 2 first, until one end of the connector 321 of the second pipeline 32 abuts against one side of the guardrail body 1, enabling the first pipeline 31 to extend out from the other end of the embedded pipe 2, pulling the first pipeline 31, and pressing the fixing head 5 from one side of the clamping head 311 to one side close to the first pipeline 31, enabling the first sleeve 51 to extrude the fixture block 41, compressing the spring 42, when the second sleeve 52 is moved away from the upper side of the fixture block 41, enabling the fixture block 41 to extend out under the action of the spring 42, connecting the fixing head 5 on the guardrail body 1 with the connector 321 on the adjacent guardrail body 1 in a threaded manner, enabling one side of the fixture block 41 close to the first pipeline 31 to abut against the first sleeve 51, and connecting and fixing the adjacent two first pipelines 31 and the second pipeline 32. Fixing nut 64 is unscrewed again, so that mounting plate 62 can be adjusted downwards, arc groove 316 on bayonet joint 311 can be aimed at to arc 63, fixing nut 64 is screwed up again to fix mounting plate 62, fixes first pipeline 31, so that installation of connecting pipe 3 in guardrail body 1 is finished, overall structure is stable and reliable, and joint strength is high.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an adjacent anticollision barrier expansion joint structure, includes guardrail body (1), and is adjacent connect its characterized in that through connecting pipe (3) between guardrail body (1): a horizontal embedded pipe (2) is arranged in the guardrail body (1); two ends of the embedded pipe (2) are respectively fixed with two sides of the guardrail body (1); the connecting pipe (3) is arranged inside the embedded pipe (2); the connection tube (3) comprises a first duct (31) and a second duct (32); the first pipeline (31) is sleeved outside the second pipeline (32) and is in sliding fit with the second pipeline (32); one end of the first pipeline (31) is provided with a clamping joint (311); one end of the second pipeline (32) is provided with a connector (321); the connector (321) and the clamping connector (311) are arranged at two ends in the horizontal direction in a penetrating manner; the clamping joint (311) is provided with a clamping piece (4); the clamping piece (4) comprises a clamping block (41) and a spring (42); two sliding grooves (312) are symmetrically formed in the outer surface of the clamping head (311) and relative to the axis of the clamping head (311); the fixture block (41) is arranged in the sliding groove (312) in a sliding manner; one end of the spring (42) is connected with the fixture block (41), and the other end of the spring (42) is connected with the bottom of the sliding groove (312); the end face, away from the spring (42), of the clamping block (41) is an inclined face, and one side, away from the first pipeline (31), of the inclined face is close to the spring (42); the first pipeline (31) is connected with a second pipeline (32) arranged on the adjacent guardrail body (1) through a fixing head (5); the fixed head (5) comprises a first sleeve (51) and a second sleeve (52); the inner wall of the first sleeve (51) is attached to the outer wall of the first pipeline (31); the second sleeve (52) is arranged on one side of the first sleeve (51), and the inner diameter of the second sleeve (52) is larger than that of the first sleeve (51); the second sleeve (52) is in threaded connection with the connector (321); and a fixing piece (6) for limiting the movement of the first pipeline (31) is arranged on one opposite side of the adjacent guardrail bodies (1).

2. The adjacent anti-collision guardrail expansion joint structure of claim 1, wherein: fixing holes (11) matched with the embedded pipes (2) are formed in the two inner sides of the guardrail body (1); two outer sides of the guardrail body (1) are provided with countersunk grooves (12) with the diameter larger than the aperture of the fixing hole (11); a fixed sleeve (13) in threaded connection with the end part of the pre-buried pipe (2) is arranged in the countersunk head groove (12).

3. The adjacent anti-collision guardrail expansion joint structure of claim 2, wherein: an arc-shaped groove (316) is formed in one side, close to the first pipeline (31), of the clamping joint (311); the fixing piece (6) comprises a threaded column (61), a mounting plate (62) and an arc-shaped plate (63); the threaded column (61) is arranged on one side of the fixed sleeve (13), and the extending direction of the threaded column (61) is parallel to the extending direction of the first pipeline (31); a waist-shaped hole (621) is formed in the mounting plate (62); one end of the threaded column (61) penetrates through the waist-shaped hole (621) and is fixed on the mounting plate (62) through a fixing nut (64); the arc-shaped plate (63) is arranged on the lower end face of the mounting plate (62), and the arc-shaped plate (63) is matched with the arc-shaped groove (316).

4. The adjacent anti-collision guardrail expansion joint structure of claim 1, wherein: a fixing ring (313) is arranged on one side, close to the first pipeline (31), of the clamping joint (311); the fixing ring (313) and the fixture block (41) are arranged at intervals; one side of the fixing ring (313) close to the fixture block (41) is abutted against one side of the first sleeve (51).

5. The adjacent anti-collision guardrail expansion joint structure of claim 1, wherein: an inserting pipe (314) is arranged at one end of the clamping joint (311) departing from the first pipeline (31); the outer wall of the insertion pipe (314) is attached to the inner wall of the connector (321), and a chamfer is arranged at the end part of the insertion pipe (314).

6. The adjacent anti-collision guardrail expansion joint structure of claim 1, wherein: the outer wall of the first pipeline (31) is provided with a butting ring (315); the outer wall of the abutting ring (315) is attached to the inner wall of the embedded pipe (2).

7. The adjacent anti-collision guardrail expansion joint structure of claim 1, wherein: a supporting plate (14) for supporting the embedded pipe (2) is arranged in the guardrail body (1); the supporting plates (14) are arranged in a plurality at intervals along the length direction of the guardrail body (1).

8. The adjacent expansion joint structure of the crash barrier as set forth in claim 7, wherein: the supporting plate (14) is arc-shaped and matched with the outer wall of the embedded pipe (2), and a rubber pad (141) is arranged on one side, attached to the embedded pipe (2), of the supporting plate (14).