CN212670301U

CN212670301U - Expansion device of highway bridge guardrail

Info

Publication number: CN212670301U
Application number: CN202021370220.0U
Authority: CN
Inventors: 李岁论
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-03-09
Anticipated expiration: 2030-07-13

Abstract

The utility model relates to a rail guard technical field especially relates to a telescoping device of public road bridge roof beam guardrail, including the guard bar, the guard bar has two, two the draw-in groove has all been seted up to one side that the guard bar is relative, two be provided with flexible cover between the guard bar, the spout has all been seted up, two to the left and right sides of flexible cover inner wall the equal symmetrical swing joint in inside of spout has locking device. The to-be-solved technical problem of the utility model is through the draw-in groove, flexible cover and locking device's cooperation is used, during the installation through make locking device and the guard bar on the draw-in groove joint can, the installation is simple and convenient, work efficiency is improved, construction cost is reduced, through the fixture block, the cooperation of backup pad and protection network is used, drive the backup pad when making fixture block and draw-in groove joint and remove, with the stable fixing between two guard bars of fixed connection's protection network in the backup pad, effectual clearance to between two guard bars protects, improve the security performance of guard bar.

Description

Expansion device of highway bridge guardrail

Technical Field

The utility model relates to a rail guard technical field specifically is a telescoping device of public road bridge roof beam guardrail.

Background

Building components are natural in expansion with heat and contraction with cold, in order to prevent the guardrail from generating cracks or damage inside the guardrail structure due to climate temperature change, workers often set a telescopic device at a proper position of the guardrail during construction, so that the guardrail is equally divided into two independent parts, and the guardrail can horizontally stretch along the length direction;

the prior patent (publication number: CN210368627U) discloses a telescopic device for building highway bridge guardrails, which comprises a left guardrail and a right guardrail, wherein the left guardrail is provided with a first connecting plate, the first connecting plate is symmetrically provided with transverse plates, sliding grooves are formed in the transverse plates, the sliding grooves are provided with first springs, sliding plates are arranged at the right ends of the first springs, rotating shafts are arranged between the sliding plates, and the rotating shafts are provided with rotating rods. The inventor finds that the following problems in the prior art are not solved in the process of realizing the scheme: 1. the device is connected and installed through a plurality of fixing bolts in the installation process, the length of the bridge is generally longer, and the installation of the telescopic device in the method consumes more working time and improves the construction cost; 2. this telescoping device structure is less can not effectual protect the clearance between two fenders after the installation, and the security performance is lower in the in-service use process.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a telescoping device of public road bridge roof beam guardrail has solved current part guardrail telescoping device and has carried out fixed mounting through a plurality of bolts and need consume more engineering time, and current part telescoping device can not effectually protect the clearance between two protective rod.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a telescopic device of a road bridge guardrail comprises two guard rods, wherein one side of each of the two guard rods, which is opposite to the other side, is provided with a clamping groove, a telescopic sleeve is arranged between the two guard rods, the left side and the right side of the inner wall of the telescopic sleeve are respectively provided with a sliding groove, the insides of the two sliding grooves are symmetrically and movably connected with locking devices, the two locking devices are respectively clamped with the two clamping grooves, each locking device comprises a sliding plate, the sliding plate is slidably connected inside the sliding groove, the middle part of the sliding plate is movably connected with a push rod, one end of the push rod is fixedly connected with a clamping block, a compression spring is fixedly connected between the clamping block and one side of the sliding plate, which is opposite to the sliding plate, one side of the sliding plate, which is far away from the clamping block, is fixedly connected with a rack, one side of the, the middle part fixedly connected with round gear of dwang, the upper and lower both ends of round gear respectively with two rack toothing, the other end fixedly connected with turning block of dwang, the chucking shell has been cup jointed to the outside of turning block, the one end fixed connection of chucking shell is on the lateral wall of flexible cover, the inside of chucking shell has the shell fragment along circumference equidistance swing joint, the knob has been cup jointed in the other end activity of chucking shell, fixedly connected with reset spring between the inner wall of knob and the right side of turning block, the one end joint of fixture block is in the inside of draw-in groove, one side fixedly connected with backup pad of draw-in groove is kept away from to the fixture block, fixedly connected with protection network in the backup pad.

Further preferably, one ends of the two push rods opposite to each other are fixedly connected with a stop block.

Further preferably, the side wall of the rotating block and the inner wall of the knob are both provided with teeth, and the knob is matched with the rotating block.

Further preferably, the spring plate is clamped with the side wall of the rotating block in a matched mode.

Further preferably, the inner wall of the telescopic sleeve is fixedly connected with a bearing, and one end of the rotating rod is fixedly connected with the bearing.

Further preferably, a telescopic protective sleeve is movably sleeved outside the compression spring.

(III) advantageous effects

The utility model provides a telescoping device of public road bridge roof beam guardrail possesses following beneficial effect:

(1) the device uses through draw-in groove, flexible cover and locking device's cooperation, makes guardrail telescoping device in the installation, through make locking device with the fender rod on the draw-in groove joint can, the installation is simple and convenient, has improved work efficiency, has reduced construction cost.

(2) The device uses through the cooperation of fixture block, backup pad and protection network, drives the backup pad and removes when making fixture block and draw-in groove joint, fixes in the backup pad fixed connection's protection network stable between two guard bars, and the effectual clearance to between two guard bars protects, improves the security performance of guard bar.

Drawings

FIG. 1 is a main sectional view of the overall structure of the present invention;

FIG. 2 is an enlarged view of the position A of FIG. 1 according to the present invention;

fig. 3 is a cross-sectional view of the position of the rotating rod of the present invention.

In the figure: 1, protecting a rod; 2, a clamping groove; 3, telescoping sleeves; 4, a chute; 5 locking means; 501 sliding the plate; 502 a push rod; 503 a cartridge; 504 compression spring; 505 rack bar; 6 through holes; 7 rotating the rod; 8, a circular gear; 9, turning the block; 10 clamping the shell; 11 a spring plate; 12 a knob; 13 a return spring; 14 a support plate; 15 protective net.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a telescopic device of a road bridge guardrail 1 comprises two guard bars 1, wherein one side of each guard bar 1 is provided with a clamping groove 2, a telescopic sleeve 3 is arranged between the two guard bars 1, the left side and the right side of the inner wall of the telescopic sleeve 3 are provided with sliding grooves 4, the insides of the two sliding grooves 4 are symmetrically and movably connected with locking devices 5, the two locking devices 5 are respectively clamped with the two clamping grooves 2, so that the guardrail telescopic device can be installed by clamping the locking devices 5 with the clamping grooves 2 on the guard bars 1, the installation process is simple and convenient, the working efficiency is improved, the construction cost is reduced, the locking devices 5 comprise sliding plates 501, the sliding plates 501 are slidably connected with the insides of the sliding grooves 4, the middle parts of the sliding plates 501 are movably connected with push rods 502, one ends of the push rods 502 are fixedly connected with clamping blocks 503, and compression springs 504 are fixedly connected between the clamping blocks 503 and one, the outer part of the compression spring 504 is movably sleeved with a telescopic protection sleeve, the telescopic protection sleeve is designed to be conical, external rainwater is prevented from entering the inner part of the compression spring 504, the opposite ends of the two push rods 502 are fixedly connected with a stop dog, the push rods 502 are prevented from moving out of the inner part of the sliding plate 501 to influence the use of the device, one side of the sliding plate 501, which is far away from the clamping block 503, is fixedly connected with a rack 505, one side of the telescopic sleeve 3 is provided with a through hole 6, the inner part of the through hole 6 is movably connected with a rotating rod 7, one end of the rotating rod 7 is movably connected with the inner wall of the telescopic sleeve 3, the inner wall of the telescopic sleeve 3 is fixedly connected with a bearing, one end of the rotating rod 7 is fixedly connected with the bearing, one end of the rotating rod 7 is supported by the bearing, the middle part of the rotating rod 7 is fixedly, realize the length adjustment of the whole device, be suitable for installing between two bridge guardrails of different width, application scope promotes, the other end fixedly connected with turning block 9 of dwang 7, the outside of turning block 9 is cup jointed with chucking shell 10, one end of chucking shell 10 is fixedly connected on the lateral wall of telescopic sleeve 3, the inside of chucking shell 10 is along circumference equidistance swing joint with shell fragment 11, shell fragment 11 and the lateral wall cooperation joint of turning block 9, through shell fragment 11 lock turning block 9, avoid turning block 9 not in time lock to lead to turning block 9 to rotate, thereby make round gear 8 begin to rotate, influence the stability of the whole device, the other end activity of chucking shell 10 is cup jointed with knob 12, fixedly connected with reset spring 13 between the inner wall of knob 12 and the right side of turning block 9, the lateral wall of turning block 9 and the inner wall of knob 12 all are equipped with the tooth, knob 12 and turning block 9 cooperate, can realize the cooperation of knob 12 and turning block 9 after pressing knob 12, release knob 12 back reset spring 13 and support knob 12 left and press, make knob 12 and turning block 9 remove the cooperation state, the one end joint of fixture block 503 is in the inside of draw-in groove 2, one side fixedly connected with backup pad 14 of draw-in groove 2 is kept away from to fixture block 503, fixedly connected with protection network 15 on the backup pad 14, the top and the equal fixedly connected with montant in bottom of backup pad 14, protection network 15 fixed connection is on the montant, and two upper and lower positions of guard bar 1 all are provided with the telescoping device, after the telescoping device installation, along with the removal of fixture block 503, make the stable fixing of protection network 15 between two guard bar 1, effectually protect the clearance between two guard bar 1, improve the security performance of guard bar 1.

The working principle is as follows: when the bridge guardrail telescoping device needs to be installed, firstly, the knob 12 is pressed to enable the knob 12 to be matched and clamped with the rotating block 9, then the knob 12 is rotated to enable the rotating block 9 to rotate, at the moment, the rotating rod 7 fixedly connected with the rotating block 9 starts to rotate, the circular gear 8 fixedly connected with the rotating rod 7 is meshed with the two racks 505 for transmission, at the moment, the two racks 505 push the two sliding plates 501 respectively and fixedly connected to slide on the sliding grooves 4 formed in the telescopic sleeves 3, so that the fixture blocks 503 movably connected with the sliding plates 501 through the push rods 502 move, the distance between the fixture blocks 503 and the telescopic sleeves 3 can be adjusted, after the positions of the two fixture blocks 503 are adjusted, the whole device is placed at the positions of the clamping grooves 2 formed between the two guard bars 1, then the knob 12 is rotated to enable the two fixture blocks 503 to be completely clamped into the clamping grooves 2, when the knob 12 is loosened, the elastic sheets 11 in the clamping shell 10 fix the positions of the, make dwang 7 unable rotation, whole installation is simple and convenient, avoids using a plurality of bolts to fix, has improved work efficiency, has reduced construction cost, and simultaneously two fixture blocks 503 remove to the inside back of draw-in groove 2, and fixed connection's backup pad 14 begins to remove on the fixture block 503, makes the protection network 15 on the backup pad 14 expand, and effectual clearance to between two fender rods 1 protects, improves fender rod 1's security performance.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention.

Claims

1. The utility model provides a telescoping device of public road bridge roof beam guardrail, includes guard bar (1), its characterized in that: the number of the guard bars (1) is two, clamping grooves (2) are formed in the opposite sides of the two guard bars (1), a telescopic sleeve (3) is arranged between the two guard bars (1), sliding grooves (4) are formed in the left side and the right side of the inner wall of the telescopic sleeve (3), locking devices (5) are symmetrically and movably connected inside the two sliding grooves (4), and the two locking devices (5) are respectively clamped with the two clamping grooves (2);

the locking device (5) comprises a sliding plate (501), the sliding plate (501) is connected inside the sliding groove (4) in a sliding mode, a push rod (502) is movably connected to the middle of the sliding plate (501), a clamping block (503) is fixedly connected to one end of the push rod (502), a compression spring (504) is fixedly connected between the clamping block (503) and one side, opposite to the sliding plate (501), of the sliding plate (501), and a rack (505) is fixedly connected to one side, away from the clamping block (503), of the sliding plate (501);

a through hole (6) is formed in one side of the telescopic sleeve (3), a rotating rod (7) is movably connected inside the through hole (6), one end of the rotating rod (7) is movably connected to the inner wall of the telescopic sleeve (3), a circular gear (8) is fixedly connected to the middle of the rotating rod (7), and the upper end and the lower end of the circular gear (8) are respectively meshed with the two racks (505);

the other end of the rotating rod (7) is fixedly connected with a rotating block (9), a clamping shell (10) is sleeved outside the rotating block (9), one end of the clamping shell (10) is fixedly connected to the side wall of the telescopic sleeve (3), elastic pieces (11) are movably connected to the inside of the clamping shell (10) at equal intervals along the circumference, a knob (12) is movably sleeved at the other end of the clamping shell (10), and a reset spring (13) is fixedly connected between the inner wall of the knob (12) and the right side of the rotating block (9);

one end of the clamping block (503) is clamped in the clamping groove (2), a supporting plate (14) is fixedly connected to one side, away from the clamping groove (2), of the clamping block (503), and a protective net (15) is fixedly connected to the supporting plate (14).

2. The telescopic device of a road bridge railing of claim 1, wherein: the opposite ends of the two push rods (502) are fixedly connected with a stop block.

3. The telescopic device of a road bridge railing of claim 1, wherein: the side wall of the rotating block (9) and the inner wall of the knob (12) are provided with teeth, and the knob (12) is matched with the rotating block (9).

4. The telescopic device of a road bridge railing of claim 1, wherein: the elastic sheet (11) is matched and clamped with the side wall of the rotating block (9).

5. The telescopic device of a road bridge railing of claim 1, wherein: the inner wall fixedly connected with bearing of telescope tube (3), the one end and the bearing fixed connection of dwang (7).

6. The telescopic device of a road bridge railing of claim 1, wherein: and a telescopic protective sleeve is sleeved outside the compression spring (504) in a movable manner.