A comb-tooth plate bridge telescopic and closable lateral displacement device

Abstract

The present invention provides a comb-tooth plate type bridge telescopic and closable lateral displacement device, comprising a first beam body and a second beam body, wherein a gap exists between the first beam body and the second beam body, and further comprising: a tooth plate displacement box, a rotating tooth anchoring assembly, and an elastic filling body. The tooth plate displacement box comprises a displacement box bottom plate, a waist-shaped hole is arranged in the middle of the displacement box bottom plate, the rotating tooth anchoring assembly comprises an anchoring assembly panel and a limiting shaft, a limiting shaft is fixedly installed in the middle of the anchoring assembly panel, and the limiting shaft passes through the elastic filling body and is slidably connected to the waist-shaped hole of the displacement box bottom plate. The present invention not only realizes the problem that a large-scale comb-tooth plate type bridge telescopic device can be laterally displaced in a closed state through the sliding connection between the limiting shaft and the tooth plate displacement box, but also has a simple structure and is easy to assemble and use.

Description

Technical Field

[0001] The invention relates to the technical field of bridge application, and in particular to a comb-tooth plate type bridge telescopic and closable lateral displacement device. Background Art

[0002] At present, the implementation standards of the elastic positioning connection device for the tooth plate of the comb-tooth plate bridge expansion device are JT∕T 327-2016 "General Technical Conditions for Highway Bridge Expansion Devices" and JT / T723-2008 "Unitary Multi-Directional Displacement Comb-Shaped Plate Bridge Expansion Device". All existing products only need to perform corresponding rotations. When the overall expansion device is in a closed state or the extension amount is small, if the bridge plate has a corresponding large horizontal lateral displacement, the expansion device bite tooth plate will be subjected to a large lateral force, which will reduce the service life of the expansion device at the least, and cause damage to the device structure or cause the tooth plate to break, affecting the safety of the overall expansion device. This is also one of the main reasons why large comb-tooth plate expansion devices are easily damaged. Summary of the invention

[0003] In view of the above shortcomings of the prior art, the present invention provides a comb-tooth plate type bridge telescopic and closable lateral displacement device to improve the technical problem of structural damage or tooth plate breakage caused by excessive lateral force when the telescopic device is in a closed state or the extension amount is small.

[0004] To achieve the above-mentioned purpose and other related purposes, the present invention provides a comb-tooth plate type bridge telescopic and closable lateral displacement device, including a first beam body and a second beam body, and also including: a fixed tooth plate, a rotating tooth plate, a tooth plate displacement box, a rotating tooth anchor assembly, and an elastic filling body. The fixed tooth plate is fixedly installed on the second beam body, the fixed tooth plate has a plurality of first racks arranged in parallel, the rotating tooth plate has a plurality of second racks arranged in parallel, and the plurality of second racks are correspondingly inserted into the gaps between the first racks. The tooth plate displacement box is installed on the first beam body and fixedly connected to a side of the rotating tooth plate away from the fixed tooth plate. The rotating tooth anchor assembly is fixedly installed on the first beam body, and The upper part is slidably connected to the bottom of the tooth plate shift box, and the elastic filling body is arranged between the tooth plate shift box and the rotating tooth anchoring assembly, wherein the tooth plate shift box also includes a spring support plate, and the spring support plate is fixedly mounted on the waist-shaped hole of the bottom plate of the shift box, and compression springs are installed on the spring support plate and the bottom plate of the shift box, and a plurality of through holes are arranged on the bottom plate of the shift box, and lateral displacement springs are installed in the through holes of the bottom plate of the shift box; the rotating tooth anchoring assembly includes an anchoring assembly panel and a limiting shaft, and the limiting shaft is fixedly mounted on the anchoring assembly panel, and passes through the elastic filling body and is slidably connected to the waist-shaped hole of the bottom plate of the shift box.

[0005] In an example of the comb-tooth plate type bridge telescopic and closable lateral displacement device of the present invention, the tooth plate displacement box also includes a first displacement box upright plate and a second displacement box upright plate, the first displacement box upright plate is fixedly mounted on one side of the displacement box bottom plate, the second displacement box upright plate is fixedly mounted on the side of the displacement box bottom plate away from the first displacement box upright plate, a displacement box connecting plate is fixedly mounted between the first displacement box upright plate and the second displacement box upright plate, a displacement box cover plate is fixedly connected to the upper surfaces of the first displacement box upright plate and the second displacement box upright plate, and the outer side of the first displacement box upright plate is fixedly connected to one end of the rotating tooth plate.

[0006] In an example of a comb-tooth plate type bridge telescopic and closable lateral displacement device of the present invention, the rotating tooth anchor assembly also includes a lane anchor and a fixing bolt, the fixing bolt is fixedly installed on the lane anchor, the threaded end of the fixing bolt passes through the anchor assembly panel, the elastic filling body and the lateral displacement spring into the tooth plate displacement box, a plurality of sliding support placement holes are arranged on the anchor assembly panel on both sides of the limiting axis, a shock-absorbing sliding support is placed in the sliding support placement hole, and a sliding support sealing plate is fixedly connected below the sliding support placement hole.

[0007] In an example of the comb-tooth plate type bridge telescopic and closable lateral displacement device of the present invention, the tooth plate displacement box also includes a spring sleeve, and the spring sleeve is fixedly mounted on the through hole of the bottom plate of the displacement box. A lateral displacement spring is placed inside the spring sleeve, and a spring pressure plate is fixedly connected to the lateral displacement spring. The threaded end of the fixing bolt passes through the spring pressure plate and is fixedly connected to the open nut.

[0008] In an example of the comb-tooth plate type bridge telescopic and closable lateral displacement device of the present invention, the tooth plate displacement box also includes a stainless steel slide plate, which is fixedly installed under the bottom plate of the displacement box, and a shock-absorbing sliding support is fitted under the stainless steel slide plate.

[0009] In an example of the comb-tooth plate type bridge telescopic and closable lateral displacement device of the present invention, the fixing bolts include a first bolt, a second bolt and a third bolt close to the first displacement box vertical plate, and also include a fourth bolt, a fifth bolt and a sixth bolt close to the second displacement box vertical plate, the first bolt and the fourth bolt are both located on the side close to the displacement box connecting plate, and the second bolt, the third bolt, the fifth bolt and the sixth bolt are all located in the middle position of the tooth plate displacement box.

[0010] In an example of the comb-tooth plate type bridge telescopic and closable lateral displacement device of the present invention, the lateral displacement spring includes a first displacement spring and a second displacement spring, the first bolt and the fourth bolt are sleeved with the first displacement spring, and the second bolt, the third bolt, the fifth bolt and the sixth bolt are all sleeved with the second displacement spring.

[0011] In an example of the telescopic and closable lateral displacement device for a comb-tooth plate bridge of the present invention, the outer dimension of the first displacement spring is larger than that of the second displacement spring.

[0012] In an example of the comb-tooth plate type bridge telescopic and closable lateral displacement device of the present invention, the spring pressure plate includes a first spring pressure plate, a second spring pressure plate and a third spring pressure plate, the first spring pressure plate connects the first bolt and the sixth bolt, the second spring pressure plate connects the second bolt and the fifth bolt, and the third spring pressure plate connects the fourth bolt and the sixth bolt.

[0013] The present invention can achieve lateral displacement of the telescopic device when it is in a closed state or when the extension amount is relatively small by cooperating with the limit shaft installed on the anchor assembly panel and the waist-shaped hole on the bottom plate of the shift box. At the same time, it reduces the risk of damage to the rotating tooth plate and the fixed tooth plate caused by lateral displacement when the telescopic device is in a closed state or when the extension amount is relatively small, thereby increasing the service life of the telescopic device and improving the safety of the overall use of the telescopic device.

[0014] Furthermore, the present invention saves the assembly space of the gear plate shift box and increases the torque by staggered connection of the first spring pressure plate, the second spring pressure plate and the third spring pressure plate with the first bolt, the second bolt, the third bolt, the fourth bolt, the fifth bolt and the sixth bolt, so that the gear plate shift box and the rotating gear plate have a certain rotational force. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 For the present invention Figure 1 Schematic diagram of the cross-section at AA in the middle;

[0018] Figure 3 For the present invention Figure 1 Schematic diagram of the cross section at the middle BB;

[0019] Figure 4 For the present invention Figure 2 Partial schematic diagram at C in the middle;

[0020] Figure 5 It is a schematic diagram of the explosion structure of the present invention;

[0021] Figure 6 It is a schematic diagram of lateral displacement of the present invention;

[0022] Figure 7 It is a schematic diagram of the assembly structure of the present invention.

[0023] Component number description:

[0024] 100, gear plate shift box; 110, shift box bottom plate; 111, waist-shaped hole; 120, spring sleeve; 130, spring support plate; 140, compression spring positioning block; 150, shift box cover plate; 160, stainless steel slide plate; 170, first shift box vertical plate; 180, second shift box vertical plate; 190, shift box connecting plate; 200, rotating tooth anchor assembly; 210, lane anchor bolt; 220, fixing bolt; 221, first bolt; 222, second bolt; 223, third bolt; 224, fourth bolt; 225, fifth bolt; 226, fourth bolt; 227, fifth bolt; 228, fifth bolt; 229, fifth bolt; 230, fifth bolt; 231, fifth bolt; 232, fifth bolt; 233, fifth bolt; 234, fifth bolt; 235, fifth bolt; 236, fifth bolt; 237, fifth bolt; 238, fifth bolt; 239, fifth bolt; 240, fifth bolt; 241, fifth bolt; 242, fifth bolt; 243, fifth bolt; 244, fifth bolt; 245, fifth bolt; 246, fifth bolt; 247, fifth bolt; 248, fifth bolt; 249, fifth bolt; 250 ...0, fifth bolt; 241, fifth bolt; 242, fifth bolt; 243, fifth bolt; 244, fifth bolt 6. Sixth bolt; 230. Anchor assembly panel; 240. Limiting shaft; 250. Shock-absorbing sliding support; 260. Sliding support sealing plate; 300. Elastic filling body; 400. Rotating tooth plate; 500. Fixed tooth plate; 600. First beam body; 700. Second beam body; 800. Compression spring; 900. Lateral displacement spring; 910. First displacement spring; 920. Second displacement spring; 1000. Spring pressure plate; 1010. First spring pressure plate; 1020. Second spring pressure plate; 1030. Third spring pressure plate; 1100. Open nut. DETAILED DESCRIPTION

[0025] The following is an explanation of the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the features in the following embodiments and the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present invention are intended to describe specific embodiments, rather than to limit the scope of protection of the present invention. The test methods for which specific conditions are not specified in the following examples are usually carried out under conventional conditions or according to the conditions recommended by the manufacturers.

[0026] When numerical ranges are given in the embodiments, it should be understood that, unless otherwise specified in the present invention, both endpoints of each numerical range and any value between the two endpoints can be selected. Unless otherwise defined, all technical and scientific terms used in the present invention are familiar to those skilled in the art and the description of the present invention, and any methods, equipment and materials of the prior art similar or equivalent to the methods, equipment and materials described in the embodiments of the present invention can also be used to implement the present invention.

[0027] It should be noted that the terms such as "upper", "lower", "left", "right", "middle" and "one" etc. used in this specification are only for the convenience of description and are not intended to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships, without substantially changing the technical content, should also be regarded as the scope of implementation of the present invention.

[0028] See also Figures 1 to 6The present invention provides a comb-tooth plate type bridge telescopic and closable lateral displacement device, comprising a first beam body 600 and a second beam body 700, and further comprising: a fixed tooth plate 500, a rotating tooth plate 400, a tooth plate displacement box 100, a rotating tooth anchor assembly 200, and an elastic filling body 300. The fixed tooth plate 500 is fixedly mounted on the second beam body 700, and the fixed tooth plate 500 has a plurality of first racks arranged in parallel. The rotating tooth plate 400 has a plurality of second racks arranged in parallel, and the plurality of second racks are correspondingly inserted into the gaps between the first racks. The tooth plate displacement box 100 is mounted on the first beam body 600, and is fixedly connected to the side of the rotating tooth plate 400 away from the fixed tooth plate 500. The rotating tooth anchor assembly 200 is fixedly mounted on the first beam body 600, and the upper part is slidably connected to the bottom of the tooth plate displacement box 100. The elastic filling body 300 is arranged between the tooth plate shift box 100 and the rotating tooth anchor assembly 200, wherein the tooth plate shift box 100 also includes a spring support plate 130, and the spring support plate 130 is fixedly mounted on the waist-shaped hole 111 of the shift box bottom plate 110, and a compression spring 800 is installed on the spring support plate 130 and the shift box bottom plate 110, and a plurality of through holes are arranged on the shift box bottom plate 110, and lateral displacement springs 900 are installed in the through holes of the shift box bottom plate 110; the rotating tooth anchor assembly 200 includes an anchor assembly panel 230 and a limit shaft 240, The limit shaft 240 is fixedly mounted on the anchor assembly panel 230, and passes through the elastic filling body 300 to be slidably connected with the waist-shaped hole 111 of the shift box bottom plate 110. The limit shaft 240 on the rotating tooth anchor assembly 200 is embedded in the waist-shaped hole 111 on the shift box bottom plate 110. The waist-shaped hole 111 leaves a certain lateral displacement length in the horizontal direction, so that the tooth plate shift box 100 can be displaced in the horizontal direction, and will not be displaced in the vertical direction due to the limitation of the limit shaft 240, thereby increasing the longitudinal load-bearing stability and safety of the overall telescopic device. Since the height of the limit shaft 240 is limited, the relative three-dimensional rotation between the two will not be limited.

[0029] In an example of the comb plate type bridge telescopic and closable lateral displacement device of the present invention, the tooth plate displacement box 100 also includes a first displacement box vertical plate 170 and a second displacement box vertical plate 180, the first displacement box vertical plate 170 is fixedly installed on one side of the displacement box bottom plate 110, the second displacement box vertical plate 180 is fixedly installed on the side of the displacement box bottom plate 110 away from the first displacement box vertical plate 170, and the displacement box connecting plate 19 is fixedly installed between the first displacement box vertical plate 170 and the second displacement box vertical plate 0, the first shift box upright plate 170 and the second shift box upright plate 180 are fixedly connected to the shift box cover plate 150, the outer side of the first shift box upright plate 170 is fixedly connected to one end of the rotating gear plate 400, the shift box cover plate 150 is fixedly connected to the first shift box upright plate 170 and the second shift box upright plate 180 by bolts, and the first shift box upright plate 170 is fixedly connected to one end of the rotating gear plate 400, so that the gear plate shift box 100 and the rotating gear plate 400 form an integrated structure with a simple structure and quick installation.

[0030] In an example of the telescopic and closable lateral displacement device of the comb-tooth plate bridge of the present invention, the rotating tooth anchor assembly 200 also includes a lane anchor 210 and a fixing bolt 220, and the fixing bolt 220 is fixedly installed on the lane anchor 210, and the threaded end of the fixing bolt 220 passes through the anchor assembly panel 230, the elastic filling body 300 and the lateral displacement spring 900 to enter the tooth plate displacement box 100, and a plurality of sliding support placement holes are arranged on both sides of the limit shaft 240 on the anchor assembly panel 230, and shock-absorbing sliding blocks are placed in the sliding support placement holes. The movable support 250, the sliding support sealing plate 260 is fixedly connected below the sliding support placement hole, the rotating tooth anchoring assembly 200 is fixedly installed inside the first beam body 600, and the tooth plate displacement box 100 is connected to the rotating tooth anchoring assembly 200 by the fixing bolts 220, so that the overall structure is easy to assemble, avoiding the problem of cumbersome installation process caused by traditional bolt installation, and at the same time, the elastic filling body 300 can effectively reduce the shock from above, better protect the structure of the rotating tooth anchoring assembly 200 located in the first beam body 600, and improve the service life of the device.

[0031] Please refer to Figure 2 and Figure 3In an example of the telescopic and closable lateral displacement device of the comb-tooth plate type bridge of the present invention, the tooth plate displacement box 100 also includes a spring sleeve 120, which is fixedly mounted on the through hole of the displacement box bottom plate 110, and a lateral displacement spring 900 is placed inside the spring sleeve 120. A spring pressure plate 1000 is fixedly connected to the lateral displacement spring 900, and the threaded end of the fixing bolt 220 passes through the spring pressure plate 1000 and is fixedly connected to the open nut 1100. The compression spring 800 is arranged below the spring pressure plate 1000, and the spring pressure plate 1000 is connected to the fixing bolt 220 through the open nut 1100. At the same time, the compression spring 800 is pressed against the displacement box bottom plate 110 through the spring pressure plate 1000, so that the tooth plate displacement box 100 is fixed to the rotating tooth anchor assembly 200, thereby improving the stability and safety of the overall device.

[0032] In an example of the comb-tooth plate type bridge telescopic and closable lateral displacement device of the present invention, the tooth plate shift box 100 also includes a stainless steel slide plate 160, which is fixedly installed under the bottom plate 110 of the shift box. A shock-absorbing sliding support 250 is fitted under the stainless steel slide plate 160. The stainless steel slide plate 160 is arranged under the bottom plate 110 of the shift box, and its direction is consistent with the lateral movement direction of the tooth plate shift box 100. The lateral movement of the tooth plate shift box 100 is completed by the shock-absorbing sliding support 250 fitted under the stainless steel slide plate 160. The connection between the stainless steel slide plate 160 and the shock-absorbing sliding support 250 reduces friction, and the movement of the tooth plate shift box 100 is smoother.

[0033] Please refer to Figure 5In an example of the telescopic and closable lateral displacement device of the comb plate type bridge of the present invention, the fixing bolt 220 includes a first bolt 221, a second bolt 222 and a third bolt 223 close to the first displacement box vertical plate 170, and also includes a fourth bolt 224, a fifth bolt 225 and a sixth bolt 226 close to the second displacement box vertical plate 180. The first bolt 221 and the fourth bolt 224 are both located on a side close to the displacement box connecting plate 190, and the second bolt 222, the third bolt 223, the fifth bolt 225 and the sixth bolt 226 are all located on the tooth plate displacement box 100. In the middle position, the first bolt 221 and the fourth bolt 224 are respectively connected to the two ends of the horizontal position of the shift box bottom plate 110, the second bolt 222 and the fifth bolt 225 are connected to the shift box bottom plate 110 at the same horizontal position on the inner side of the first bolt 221 and the fourth bolt 224, and the third bolt 223 and the sixth bolt 226 are connected to the shift box bottom plate 110 at the same horizontal position on the second bolt 222 and the fifth bolt 225 and away from the first bolt 221 and the fourth bolt 224. This design makes the forces exerted on the bolts from all directions more uniform, increases the stability of the structure, and at the same time improves the service life of the device.

[0034] In an example of a telescopic and closable lateral displacement device for a comb-tooth plate bridge of the present invention, the lateral displacement spring 900 includes a first displacement spring 910 and a second displacement spring 920. The first bolt 221 and the fourth bolt 224 are sleeved with the first displacement spring 910, and the second bolt 222, the third bolt 223, the fifth bolt 225 and the sixth bolt 226 are all sleeved with the second displacement spring 920. During the lateral movement of the tooth plate displacement box 100, the lateral displacement spring 900 can play a certain protective role on the fixing bolt 220 to prevent the fixing bolt 220 from breaking due to excessive lateral displacement force. At the same time, the lateral displacement spring 900 has a certain tensioning force, which can give the fixing bolt 220 a certain moving space, so that the tooth plate displacement box 100 will not be stuck due to the fixed connection, thereby causing the tooth plate displacement box 100 to be unable to move.

[0035] In an example of the telescopic and closable lateral displacement device of the comb-tooth plate bridge of the present invention, the outer dimension of the first displacement spring 910 is larger than that of the second displacement spring 920. Because the first displacement spring 910 is mounted on the outermost first bolt 221 and the fourth bolt 224, the lateral displacement force applied to the first displacement spring 910 is larger than that of the second displacement spring 920. Similarly, the forces applied to the first bolt 221 and the fourth bolt 224 are also larger than the lateral forces applied to the second bolt 222, the third bolt 223, the fifth bolt 225 and the sixth bolt 226. The first displacement spring 910 having a larger dimension than the second displacement spring 920 can better protect the first bolt 221 and the fourth bolt 224, thereby preventing the first bolt 221 and the fourth bolt 224 from being broken due to excessive lateral displacement force.

[0036] In an example of the comb-tooth plate type bridge telescopic and closable lateral displacement device of the present invention, the spring pressure plate 1000 includes a first spring pressure plate 1010, a second spring pressure plate 1020 and a third spring pressure plate 1030. The first spring pressure plate 1010 connects the first bolt 221 and the sixth bolt 226, the second spring pressure plate 1020 connects the second bolt 222 and the fifth bolt 225, and the third spring pressure plate 1030 connects the fourth bolt 224 and the sixth bolt 226. The spring pressure plate 1000 is connected with the fixing bolt 220 to form three sets of parallel connecting rod mechanisms, which reduces the assembly space required for the tooth plate displacement box 100. At the same time, it can be obtained from the formula that under the same force, the longer the lever arm, the greater the torque. Therefore, the staggered connection method increases the lever arm length of the spring pressure plate 1000, which is equivalent to increasing the torque, so that the tooth plate displacement box 100 obtains greater rotational force and twisting force, and better protects the overall structure of the device.

[0037] See also Figure 5 and Figure 7 During the installation process of the present invention,

[0038] S1, gear plate shift box 100, first weld the shift box bottom plate 110, the first shift box vertical plate 170, the second shift box vertical plate 180 and the shift box connecting plate 190 together, then weld the spring support plate 130 on the waist-shaped hole 111 of the shift box bottom plate 110, weld the clamping spring positioning block 140 on the spring support plate 130, and at the same time weld the clamping spring positioning blocks 140 on both sides of the spring support plate 130 on the shift box bottom plate 110 in the same direction as the lateral displacement, weld the spring sleeve 120 on the through hole of the shift box bottom plate 110, weld the stainless steel slide plate 160 on both sides of the waist-shaped hole 111 in the same direction as the lateral displacement under the shift box bottom plate 110, weld the first shift box vertical plate 170 and the rotating gear plate 400 together, and finally fix the shift box cover plate 150 with the first shift box vertical plate 170 and the second shift box vertical plate 180 by bolts.

[0039] S2. Rotate the anchor assembly. First, weld the limit shaft 240 in the middle of the anchor assembly panel 230, weld the lane anchor 210 and the fixing bolt 220 together, then pass the fixing bolt 220 through the anchor assembly panel 230 and weld it to the bottom of the anchor assembly. Finally, weld the sliding support sealing plate 260 under the anchor assembly panel 230 where the limit shaft 240 and the sliding support placement hole are in the same direction of the lateral displacement.

[0040] S3, firstly, the lane anchor bolt 210 on the rotating tooth anchor assembly and the reserved reinforcement on the bridge beam body are welded according to the elevation and position requirements. Then, concrete is poured between the rotating tooth anchor assembly and the bridge beam body to form a whole.

[0041] S4. Place the shock-absorbing sliding support 250 into the sliding support placement hole of the anchor assembly panel 230 and adjust the height to be consistent.

[0042] S5. Cut holes on the elastic filling body 300 at the same positions as the fixing bolts 220 and the sliding support placement holes on the anchor assembly panel 230, and then put the elastic filling body 300 on the plane formed by the rotating tooth anchor assembly 200 and the concrete.

[0043] S6. First, put the welded tooth plate shift box 100 onto the fixing bolts 220 of the rotating tooth anchor assembly 200 according to the positions of the holes, and install the lateral displacement spring 900 in the through holes between the fixing bolts 220 and the shift box bottom plate 110, and then install the compression spring 800 on the compression spring positioning block 140, and then install the spring pressure plate 1000 on each fixing bolt 220 in an offset manner, and then tighten the spring pressure plate 1000 by the open nut 1100, and finally fasten the shift box cover plate 150 to the first shift box vertical plate 170 and the second shift box vertical plate 180 by bolts.

[0044] The comb plate type bridge telescopic closable lateral displacement device of the present invention can determine the lateral displacement of the tooth plate displacement box by the lateral size of the waist-shaped hole of the displacement box bottom plate and the size difference between the through hole of the displacement box bottom plate and the fixing bolt through the cooperation of the limiting shaft and the waist-shaped hole of the displacement box bottom plate and the cooperation of the fixing bolt and the lateral displacement spring, so as to realize the lateral displacement of the large comb plate type bridge telescopic device in the closed state, and has a simple structure and quick assembly. At the same time, the elastic parts at various positions can effectively reduce the impact of vehicle impact on the overall device, increase the overall safety factor of the device, and improve the smoothness of vehicle traffic. Therefore, the present invention has the beneficial effect of reducing the lateral force on the telescopic device and improving the safety and service life of the telescopic device. Therefore, the present invention effectively overcomes some practical problems in the prior art and has a high utilization value and use significance. The above embodiments only illustrate the principle and efficacy of the present invention, and are not used to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those having ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A comb-tooth plate bridge telescopic and closable lateral displacement device, comprising a first beam body and a second beam body, characterized in that: include: A fixed tooth plate, fixedly mounted on the second beam body, having a plurality of first racks arranged in parallel; A rotating toothed plate having a plurality of second racks arranged in parallel, wherein the plurality of second racks are correspondingly inserted into the gaps between the first racks; A tooth plate displacement box is mounted on the first beam body and is fixedly connected to a side of the rotating tooth plate away from the fixed tooth plate; The rotating tooth anchor assembly is fixedly mounted on the first beam body, and the upper part is slidably connected to the bottom of the tooth plate displacement box; An elastic filling body, the elastic filling body being arranged between the tooth plate displacement box and the rotating tooth anchoring assembly; Wherein, the tooth plate shift box also includes a spring support plate, the spring support plate is fixedly mounted on the waist-shaped hole of the bottom plate of the shift box, compression springs are installed on the spring support plate and the bottom plate of the shift box, a plurality of through holes are arranged on the bottom plate of the shift box, and transverse displacement springs are installed in the through holes of the bottom plate of the shift box; the rotating tooth anchor assembly includes an anchor assembly panel and a limiting shaft, the limiting shaft is fixedly mounted on the anchor assembly panel, and passes through the elastic filling body and is slidably connected with the waist-shaped hole of the bottom plate of the shift box; The toothed plate shift box further comprises a first shift box vertical plate and a second shift box vertical plate, wherein the first shift box vertical plate is fixedly mounted on one side of the shift box bottom plate, the second shift box vertical plate is fixedly mounted on the side of the shift box bottom plate away from the first shift box vertical plate, a shift box connecting plate is fixedly mounted between the first shift box vertical plate and the second shift box vertical plate, a shift box cover plate is fixedly connected to the first shift box vertical plate and the second shift box vertical plate, and an end of a rotating toothed plate is fixedly connected to the outer side of the first shift box vertical plate; The rotating tooth anchor assembly also includes a lane anchor bolt and a fixing bolt, the lane anchor bolt is fixedly installed with the fixing bolt, and the threaded end of the fixing bolt passes through the anchor assembly panel, the elastic filling body and the lateral displacement spring into the tooth plate displacement box; The gear plate shift box also includes a spring sleeve, which is fixedly mounted on the through hole of the bottom plate of the shift box. A lateral displacement spring is placed inside the spring sleeve, and a spring pressure plate is fixedly connected to the lateral displacement spring. The threaded end of the fixing bolt passes through the spring pressure plate and is fixedly connected to the open nut.

2. The comb-tooth plate bridge telescopic and closable lateral displacement device according to claim 1 is characterized in that: A plurality of sliding support placement holes are arranged on the anchor assembly panel at both sides of the limiting shaft, shock-absorbing sliding supports are placed in the sliding support placement holes, and sliding support sealing plates are fixedly connected below the sliding support placement holes.

3. The comb-tooth plate bridge telescopic and closable lateral displacement device according to claim 2 is characterized in that: The gear plate shift box also includes a stainless steel slide plate, which is fixedly mounted under the bottom plate of the shift box, and a shock-absorbing sliding support is fitted under the stainless steel slide plate.

4. The comb-tooth plate bridge telescopic and closable lateral displacement device according to claim 2 is characterized in that: The fixing bolts include a first bolt, a second bolt and a third bolt close to the first shift box vertical plate, and also include a fourth bolt, a fifth bolt and a sixth bolt close to the second shift box vertical plate. The first bolt and the fourth bolt are both located on the side close to the shift box connecting plate, and the second bolt, the third bolt, the fifth bolt and the sixth bolt are all located in the middle position of the toothed plate shift box.

5. The comb-tooth plate bridge telescopic and closable lateral displacement device according to claim 4 is characterized in that: The lateral displacement spring includes a first displacement spring and a second displacement spring. The first bolt and the fourth bolt are sleeved with the first displacement spring, and the second bolt, the third bolt, the fifth bolt and the sixth bolt are sleeved with the second displacement spring.

6. The comb-tooth plate bridge telescopic and closable lateral displacement device according to claim 5, characterized in that: The first displacement spring has an outer dimension greater than that of the second displacement spring.

7. The comb-tooth plate bridge telescopic and closable lateral displacement device according to claim 4 is characterized in that: The spring pressure plate includes a first spring pressure plate, a second spring pressure plate and a third spring pressure plate, the first spring pressure plate connects the first bolt and the sixth bolt, the second spring pressure plate connects the second bolt and the fifth bolt, and the third spring pressure plate connects the fourth bolt and the sixth bolt.

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