CN219752979U

CN219752979U - Railway bridge single-slit telescoping device

Info

Publication number: CN219752979U
Application number: CN202223241445.8U
Authority: CN
Inventors: 林渝桦; 赵达彪; 倪红岩
Original assignee: Henan Yuyuan Intelligent Equipment Co ltd
Current assignee: Henan Yuyuan Intelligent Equipment Co ltd
Priority date: 2022-12-02
Filing date: 2022-12-02
Publication date: 2023-09-26
Anticipated expiration: 2032-12-02

Abstract

The utility model discloses a railway bridge single-seam expansion device, which relates to the technical field of bridge single-seam expansion devices and comprises a first bridge and a second bridge, wherein the upper surfaces of the first bridge and the second bridge are respectively provided with a first expansion plate and a second expansion plate, an expansion joint is arranged between the first bridge and the second bridge, an expansion box is arranged between the first bridge and the second bridge, two side surfaces of the expansion box are in sliding connection with expansion blocks, the surfaces of the expansion blocks are fixedly connected with fixing bases, the surfaces of the fixing bases are in sliding connection with expansion columns, and one ends of the expansion columns, which are far away from the fixing bases, are fixedly connected with fixing connecting pieces.

Description

Railway bridge single-slit telescoping device

Technical Field

The utility model relates to the technical field of bridge single-slit telescopic devices, in particular to a railway bridge single-slit telescopic device.

Background

Due to the change of indoor and outdoor temperature, the concrete is changed, contracted and the like under the influence of a series of external load, and the bridge body length can be changed to enable the bridge end to displace. In order to adapt to the displacement and keep the whole beam stable, ensure the driving safety, and expansion joints are required to be arranged at reasonable positions in the bridge structure.

At present, in order to adjust the displacement between the upper structures and the connection between the upper structures caused by environmental characteristics and the physical properties of bridge building materials, expansion joints are required to be arranged, and the expansion devices in the existing expansion joints are required to be regularly widened when the expansion devices are installed due to relatively fixed expansion amount, the installation process is relatively troublesome, the defect that the installation is inconvenient exists is overcome, and when the length of a beam body is changed, the buffer effect of the expansion devices is relatively poor, so that the stress generated in the bridge changing process cannot be well buffered.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a railway bridge single-slit telescopic device, which solves the problems in the prior art.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

the utility model provides a single seam telescoping device of railroad bridge, includes first bridge and second bridge, the upper surface of first bridge and second bridge is provided with first expansion plate and second expansion plate respectively, there is the expansion joint in the centre of first bridge and second bridge, the expansion tank is installed to the centre of first bridge and second bridge, the both sides face sliding connection of expansion tank has the expansion block, the fixed surface of expansion block is connected with unable adjustment base, unable adjustment base's surface sliding connection has the flexible post, the one end fixedly connected with fixed connection spare that unable adjustment base was kept away from to the flexible post.

Optionally, the inside of expansion tank is connected with the one end rotation of pivot through the bearing, the other end of pivot runs through the expansion tank, the pivot that runs through the one end of expansion tank runs through the department and is provided with the bearing, the hexagonal hole has been seted up to the department of running through of the one end of expansion tank.

Optionally, the surface of pivot is provided with three equidistance worm that distributes, the surface transmission of worm is connected with the worm wheel, the inside fixedly connected with lead screw of worm wheel, the surface threaded connection of lead screw has the expansion block.

Optionally, the number of the worm, the worm wheel and the screw rod is three and is distributed on the surface of the rotating shaft at equal intervals.

Optionally, the lateral wall of expansion tank has seted up first slide, the both sides face fixedly connected with first slider of expansion block, the surface sliding connection of first slide has first slider.

Optionally, the second cavity has been seted up to unable adjustment base's inside, the surface sliding connection of second cavity has the movable plate, the upper and lower fixed surface of movable plate is connected with the second slider, the second slide has been seted up to the upper and lower inner wall of second cavity, the surface sliding connection of second slide has the second slider.

Optionally, a buffer block is arranged on the inner side surface of the second cavity, and the other surface of the buffer block is connected with the surface of the movable plate.

Optionally, the side fixedly connected with tensioning spring of movable plate, tensioning spring's quantity is four and is the equidistance and distributes, tensioning spring keeps away from the medial surface fixed connection of the other end and the stopper of movable plate, the inside sliding connection of second cavity has the stopper, the another side fixedly connected with telescopic column of stopper, the other end fixedly connected with fixed connection spare of telescopic column, fixed connection spare and second bridge or first bridge fixed connection.

(III) beneficial effects

The utility model provides a railway bridge single-slit telescopic device, which has the following beneficial effects:

1. this railway bridge single seam telescoping device, through the setting of expansion tank and expansion block, make this railway bridge single seam telescoping device possess the effect of being convenient for install, during the use, at first adjust this telescoping device according to the width of expansion joint, the adjustment in-process, the staff uses dedicated hexagonal wrench to rotate the pivot right through the hexagonal hole, and then drive the worm on pivot surface and rotate, make and be connected with the worm wheel together with the worm drive and rotate, drive the lead screw through the worm wheel and rotate, make the expansion block of lead screw surface threaded connection inwards slide in the inboard first slide of expansion tank through the first slider of both sides, and then play the effect with the inside shrink of expansion block, after can stopping the shrink after can putting into the expansion joint with the expansion block shrink, further put into this telescoping device again in the expansion joint, make the central line of this device align with the central line of expansion joint, after placing this device, the staff again use hexagonal wrench to rotate the pivot, drive the expansion block outwards to stretch out through worm, until the fixed connection piece and the side contact of first worm wheel and second both sides, the bridge is convenient for the dismantlement, the step is carried out in the same way after the contact, the maintenance is convenient for the step is carried out, and the step is not convenient for dismantlement.

2. This railway bridge single seam telescoping device, through unable adjustment base, the buffer block, movable plate and tensioning spring's setting, make this railway bridge single seam telescoping device possess the effect that improves the buffering, when using, when the length of first bridge and second bridge changes, when inwards squeezing this telescoping device, the stress that the roof beam body produced at first acts on the stopper through fixed connection spare and telescopic column, make the stopper take place to deform, at first the stopper provides certain buffering for the telescoping device, the stopper takes place to deform, also can act on the movable plate with the force, make the movable plate slide in the second slide through the second slider of both sides, further act on the buffer block with the force, the extrusion buffer block can make the buffer block take place to deform, make the buffer block pack the left inner chamber of second cavity, and then played the effect of buffering simultaneously, under the effect through buffer block and tensioning spring, the effect of having played better buffering, and then reached the purpose of protecting the telescoping device.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic side view in cross section of the present utility model;

FIG. 3 is a schematic top view of the present utility model;

FIG. 4 is a schematic view of the structure of the inner space of the telescopic case of the present utility model;

fig. 5 is a schematic diagram of the structure of fig. 3 a according to the present utility model.

In the figure: 1. a first bridge; 2. a second bridge; 3. an expansion joint; 4. a telescopic case; 41. a first slideway; 5. a rotating shaft; 51. a hexagonal hole; 6. a worm; 7. a worm wheel; 8. a screw rod; 9. a telescopic block; 91. a first slider; 10. a fixed base; 11. a second cavity; 111. a second slideway; 112. a buffer block; 113. a moving plate; 1131. a second slider; 12. tensioning a spring; 13. a limiting block; 14. a telescopic column; 15. fixing the connecting piece; 16. a first expansion plate; 17. and a second expansion plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Example 1

Referring to fig. 1 to 4, the present utility model provides the following technical solutions: the utility model provides a railway bridge single seam telescoping device, including first bridge 1 and second bridge 2, the upper surface of first bridge 1 and second bridge 2 is provided with first expansion plate 16 and second expansion plate 17 respectively, there is expansion joint 3 in the centre of first bridge 1 and second bridge 2, bellows 4 is installed in the centre of first bridge 1 and second bridge 2, bellows 4's inside is rotated with the one end of pivot 5 through the bearing and is connected, bellows 4 is run through to the other end of pivot 5, the pivot 5 run through department of one end of bellows 4 is provided with the bearing, hexagonal hole 51 has been seted up to the run through department of one end of bellows 4, the surface of pivot 5 is provided with three equidistance distributed worm 6, the surface transmission of worm 6 is connected with worm wheel 7, the inside fixedly connected with lead screw 8 of worm wheel 7, the surface threaded connection of lead screw 8 has expansion block 9, the quantity of worm 6, the quantity of worm wheel 7 and lead screw 8 is three and equidistance distribution at the surface of pivot 5, bellows 4's both sides face sliding connection has expansion block 9, first both sides face 41 has been seted up to the lateral wall of bellows 4, first side 9 has first side 9, first side 9 has a sliding block 10, the first sliding connection 10 of sliding connection has a base of sliding block 10, the fixed surface of sliding connection 10 has a base of sliding connection 10, the fixed surface of sliding connection 10 sliding connection has a base of sliding connection 10, the sliding connection of sliding connection 15, the sliding connection of sliding connection is fixed base of sliding connection 10, the sliding connection of sliding connection is fixed.

When the telescopic device is used, firstly, the telescopic device is adjusted according to the width of the expansion joint 3, in the adjustment process, a worker uses a special hexagonal wrench to rotate the rotating shaft 5 rightwards through the hexagonal hole 51, then the worm 6 on the surface of the rotating shaft 5 is driven to rotate, the worm wheel 7 is connected with the worm 6 in a transmission mode, the worm wheel 7 drives the screw 8 to rotate, the telescopic block 9 in threaded connection with the surface of the screw 8 slides inwards in the first sliding way 41 on the inner side of the telescopic box 4 through the first sliding blocks 91 on two sides, the telescopic block 9 can be stopped after being contracted into the expansion joint 3, the telescopic device can be further placed into the expansion joint 3, the center line of the telescopic device is aligned with the center line of the expansion joint 3, after the telescopic device is placed, the worker uses the hexagonal wrench to rotate the rotating shaft 5, the telescopic block 9 is driven to extend outwards through the worm wheel 6, the worm wheel 7 and the screw 8, until the fixed connection pieces 15 on two sides of the telescopic block 9 are contacted with the side faces of the first bridge 1 and the second bridge 2, the telescopic block 9 can be fixed after being contacted, the telescopic block 9 can be disassembled, the telescopic device can be assembled and disassembled, the telescopic device can be disassembled according to the purposes are improved, and the practical use can be achieved, and the telescopic device can be disassembled conveniently.

Example 2

Referring to fig. 3 and 5, the present utility model provides the following technical solutions: the telescopic box 4 is characterized in that two side faces of the telescopic box 4 are slidably connected with the telescopic blocks 9, the surface of the telescopic blocks 9 is fixedly connected with the fixing base 10, a second cavity 11 is formed in the fixing base 10, the surface of the second cavity 11 is slidably connected with the movable plate 113, the upper surface and the lower surface of the movable plate 113 are fixedly connected with the second sliding blocks 1131, the upper inner wall and the lower inner wall of the second cavity 11 are provided with the second sliding ways 111, the surface of the second sliding ways 111 is slidably connected with the second sliding blocks 1131, the inner side face of the second cavity 11 is provided with the buffer blocks 112, the other face of the buffer blocks 112 is connected with the surface of the movable plate 113, the surface of the fixing base 10 is slidably connected with the telescopic columns 14, one end of the telescopic columns 14 far away from the fixing base 10 is fixedly connected with the fixing connecting piece 15, the side face of the movable plate 113 is fixedly connected with the tensioning springs 12, the number of the tensioning springs 12 is four and is equidistantly distributed, the other end of the tensioning springs 12 far away from the movable plate 113 is fixedly connected with the inner side face of the movable plate 13, the inner side face of the second cavity 11 is slidably connected with the limiting block 13, the other face of the limiting block 13 is fixedly connected with the telescopic columns 14, the other end of the telescopic columns 14 is fixedly connected with the bridge connecting piece 15, and the fixing piece 15 is fixedly connected with the bridge 1 or the bridge 1.

When the telescopic device is used, when the lengths of the first bridge 1 and the second bridge 2 are changed, the telescopic device is extruded inwards, stress generated by the beam body acts on the limiting block 13 through the fixed connecting piece 15 and the telescopic column 14, so that the limiting block 13 deforms, the limiting block 13 provides certain buffer for the telescopic device, the force acts on the movable plate 113 when the limiting block 13 deforms, the movable plate 113 slides in the second slide way 111 through the second sliding blocks 1131 at two sides, the force acts on the buffer block 112 further, the buffer block 112 is extruded to deform the buffer block 112, the buffer block 112 is made of rubber, the inner cavity at the left side of the second cavity 11 is filled by the buffer block 112, further, the buffer effect is achieved, and the purpose of protecting the telescopic device is achieved by the buffer block 112 and the tensioning spring 12.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a railroad bridge single slit telescoping device, includes first bridge (1) and second bridge (2), its characterized in that: the utility model discloses a telescopic bridge, including first bridge (1) and second bridge (2), the upper surface of first bridge (1) and second bridge (2) is provided with first expansion plate (16) and second expansion plate (17) respectively, there is expansion joint (3) in the centre of first bridge (1) and second bridge (2), expansion tank (4) are installed in the centre of first bridge (1) and second bridge (2), both sides face sliding connection of expansion tank (4) has expansion block (9), the fixed surface of expansion block (9) is connected with unable adjustment base (10), the surface sliding connection of unable adjustment base (10) has telescopic column (14), one end fixedly connected with fixed connection spare (15) that unable adjustment base (10) were kept away from to telescopic column (14).

2. The railroad bridge single slit telescoping apparatus of claim 1, wherein: the inside of expansion tank (4) is rotated through the one end of bearing and pivot (5) and is connected, the other end of pivot (5) runs through expansion tank (4), the pivot (5) of the one end of running through expansion tank (4) runs through the department and is provided with the bearing, the hexagonal hole (51) has been seted up to the department of running through of the one end of running through expansion tank (4).

3. The railroad bridge single slit telescoping apparatus of claim 2, wherein: the surface of pivot (5) is provided with three equidistance worm (6), the surface transmission of worm (6) is connected with worm wheel (7), the inside fixedly connected with lead screw (8) of worm wheel (7), the surface threaded connection of lead screw (8) has expansion block (9).

4. A railroad bridge single slit telescoping apparatus as set forth in claim 3, wherein: the number of the worm (6), the worm wheel (7) and the screw rod (8) is three, and the worm wheel, the worm wheel and the screw rod are distributed on the surface of the rotating shaft (5) at equal intervals.

5. The railroad bridge single slit telescoping apparatus of claim 1, wherein: the side wall of the expansion box (4) is provided with a first slide way (41), two side faces of the expansion block (9) are fixedly connected with a first slide block (91), and the surface of the first slide way (41) is connected with the first slide block (91) in a sliding mode.

6. The railroad bridge single slit telescoping apparatus of claim 1, wherein: the inside of unable adjustment base (10) has been seted up second cavity (11), the surface sliding connection of second cavity (11) has movable plate (113), the upper and lower fixed surface of movable plate (113) is connected with second slider (1131), second slide (111) have been seted up to the upper and lower inner wall of second cavity (11), the surface sliding connection of second slide (111) has second slider (1131).

7. The railroad bridge single slit telescoping apparatus of claim 6, wherein: the inner side surface of the second cavity (11) is provided with a buffer block (112), and the other surface of the buffer block (112) is connected with the surface of the movable plate (113).

8. The railroad bridge single slit telescoping apparatus of claim 6, wherein: the side fixedly connected with tensioning spring (12) of movable plate (113), the quantity of tensioning spring (12) is four and is the equidistance and distributes, the other end that movable plate (113) was kept away from to tensioning spring (12) and the medial surface fixed connection of stopper (13), the inside sliding connection of second cavity (11) has stopper (13), the another side fixedly connected with telescopic column (14) of stopper (13), the other end fixedly connected with fixed connection spare (15) of telescopic column (14), fixed connection spare (15) and second bridge (2) or first bridge (1) fixed connection.