Self-adaptive large-displacement all-direction displacement comb plate telescopic device

Abstract

The invention relates to the technical field of bridge expansion devices, and provides a self-adaptive large-displacement all-direction displacement comb plate expansion device which comprises a fixed comb plate, a movable comb plate, a multi-direction displacement device, a tooth warping prevention device and a cylindrical surface displacement device, a plurality of fixed comb tooth strips are arranged on the fixed comb plate, a plurality of movable comb tooth strips are arranged on the movable comb plate, and the multi-direction displacement device is arranged on the cylindrical surface displacement device. The multiple movable comb tooth bars and the multiple fixed comb tooth bars are arranged in a staggered mode, the multidirectional displacement device is arranged on the first beam body and used for adjusting deformation and displacement of the first beam body in multiple directions, and the tooth warping prevention device is arranged on the first beam body and used for adjusting deformation and displacement of the first beam body in multiple directions. A cylindrical surface displacement device is arranged between each movable comb rack and the lower supporting base plate and used for being matched with the corresponding movable comb rack to conduct displacement adjustment. By means of the technical scheme, the problem that in the prior art, a bridge expansion device is insufficient in adjusting capacity when large transverse displacement and torsion displacement occur is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge expansion and contraction devices, and in particular to an adaptive large-displacement axially displaceable comb plate expansion and contraction device. Background Art

[0002] In order to meet the needs of bridge beam deformation, bridge expansion devices are generally installed between the two ends of the bridge beam, between the beam end and the abutment, or at the hinged position of the bridge, so as to avoid damage to the beam body when it is deformed, ensure the safety and stability of the bridge, and extend the service life of the bridge. Existing bridge expansion devices generally have three-way displacement functions of longitudinal displacement, longitudinal rotation angle and horizontal rotation angle, which can meet the basic deformation requirements of the bridge. Among them, longitudinal displacement refers to the displacement change in the direction parallel to the axis of the bridge, longitudinal rotation angle refers to the rotation angle in the longitudinal section direction of the bridge, and horizontal rotation angle refers to the rotation angle in the horizontal direction.

[0003] During use, some large bridges are affected by external factors such as temperature, heavy load, wind load and earthquake. In addition to deformation in the longitudinal direction, longitudinal rotation and horizontal rotation, they also produce lateral displacement and torsional displacement. For example, when a bridge is affected by an earthquake, it will produce a large lateral displacement and torsional displacement. When the bridge is overloaded or unbalanced, it will also produce torsional displacement. Among them, lateral displacement refers to the displacement change in the direction perpendicular to the axis of the bridge, and torsional displacement refers to torsional deformation in the cross-sectional direction of the bridge.

[0004] Some existing bridge expansion devices also have lateral displacement function, but the lateral displacement adjustment capacity is small, which makes it difficult to meet the large lateral displacement requirements caused by earthquakes. It also lacks torsional displacement function. Therefore, we propose an adaptive large displacement axial displacement comb plate expansion device. Summary of the invention

[0005] The present invention proposes an adaptive large displacement omnidirectional displacement comb plate telescopic device, which solves the problem of insufficient adjustment ability of the bridge telescopic device in the prior art when large lateral displacement and torsional displacement occur.

[0006] The technical scheme of the present invention is as follows: an adaptive large displacement directional displacement comb plate telescopic device, arranged between a first beam and a second beam, comprising a lower support pad, a fixed comb plate, a movable comb plate, a multi-directional displacement device, an anti-warping device and a cylindrical displacement device, a mounting groove is provided at the top of the second beam, the lower support pad is fixedly mounted on the mounting groove, the fixed comb plate is fixedly mounted on the top of the lower support pad, and a plurality of fixed comb teeth are arranged on the fixed comb plate, the movable comb plate is arranged between the first beam and the second beam, a plurality of movable comb teeth are arranged on the movable comb plate, and a plurality of movable comb teeth are arranged alternately with a plurality of fixed comb teeth, the multi-directional displacement device is arranged on the first beam, for adjusting the deformation and displacement of the first beam in multiple directions, the anti-warping device is arranged on the first beam, for adjusting the deformation and displacement of the first beam in multiple directions, and the cylindrical displacement device is arranged between each movable comb tooth bar and the lower support pad, for adjusting the displacement in coordination with the movable comb teeth.

[0007] Preferably, the multi-directional displacement device comprises a support frame, a lower bottom basin, an elastic rubber plate, an intermediate steel lining plate, an upper support plate, an arc-shaped concave plate and a rotating shaft, the support frame is fixedly installed on the side wall of the first beam body, the lower bottom basin is fixedly installed on the support frame, and the lower bottom basin is provided with a slide groove, the bottom end of the slide groove is provided with a groove, the elastic rubber plate is installed in the groove, the intermediate steel lining plate is installed on the top end of the elastic rubber plate, the top end of the intermediate steel lining plate is slidably connected to the upper support plate, the middle positions of both sides of the upper support plate are provided with arc-shaped convex surfaces, the upper support plate is provided with a plurality of rotating grooves, and the middle position of the top end of the intermediate steel lining plate is slidably connected with two arc-shaped concave plates, each of the side surfaces of the arc-shaped concave plates is provided with an arc-shaped concave surface, the arc-shaped concave surface cooperates with the arc-shaped convex surface, the rotating shaft passes through a plurality of the rotating grooves and is fixedly connected to the upper support plate, and each of the movable comb tooth plates is rotatably connected in the corresponding rotating groove through the rotating shaft.

[0008] Preferably, the anti-tooth warping device includes a connecting seat, a slide plate, a pressure plate, a reaction seat, a compression spring and an adjusting bolt. The connecting seat is fixedly connected to the support frame, the bottom end of the connecting seat is slidably connected to the slide plate, the side of each movable comb tooth bar is fixedly installed with the pressure plate, the bottom end of each pressure plate is fixedly installed with the reaction seat, and the compression spring and the adjusting bolt are installed between each reaction seat and the slide plate.

[0009] Preferably, the cylindrical displacement device includes an elastic rubber pad, a cylindrical concave plate and a cylindrical convex plate, the bottom end of each of the movable comb teeth is provided with a support groove, each of the support grooves is equipped with the elastic rubber pad, the bottom end of each of the elastic rubber pads is equipped with the cylindrical concave plate, the bottom end of each of the cylindrical concave plates is provided with a concave cylindrical surface, the top end of the lower support pad is slidably connected with a plurality of the cylindrical convex plates, the top end of each of the cylindrical convex plates is provided with a convex cylindrical surface, and the concave cylindrical surface forms a cylindrical fit with the convex cylindrical surface.

[0010] Furthermore, a connecting plate is fixedly installed on one side wall opposite to the first beam body and the second beam body, and a double-layer waterstop is fixedly installed between the two connecting plates. The bottom layer of the double-layer waterstop is a stainless steel waterstop plate, and the upper layer is a rubber waterstop.

[0011] Furthermore, a rubber displacement pad is installed between the first beam and the movable comb plate.

[0012] Furthermore, a boss is provided at the bottom end of the middle steel lining plate, and the shape of the boss matches the shape of the elastic rubber plate.

[0013] Furthermore, a limiting plate is provided on the connecting seat.

[0014] Furthermore, the rubber displacement pad, the elastic rubber plate and the plurality of elastic rubber pads are all made of a rubber material having elastic deformation capability.

[0015] The working principle and beneficial effects of the present invention are:

[0016] 1. In the present invention, the telescopic device is arranged between the first beam body and the second beam body, the fixed comb plate is arranged on the second beam body, the movable comb plate is arranged between the first beam body and the second beam body, the multi-directional displacement device and the cylindrical displacement device are arranged on the first beam body, and the cylindrical displacement device is arranged between the movable comb plate and the second beam body.

[0017] 2. In the present invention, when the first beam undergoes longitudinal displacement, the first beam drives the support frame to move along the axis of the bridge, the support frame drives the multi-directional displacement device, the anti-warping tooth device and the movable comb plate to move, and the movable comb plate drives the column displacement device to slide on the lower support pad, thereby meeting the longitudinal displacement requirements of the beam.

[0018] In the present invention, when the first beam body undergoes a longitudinal rotation angle, the first beam body drives the support frame to rotate in the longitudinal section direction of the bridge, the support frame drives the multi-directional displacement device, the anti-warping tooth device and the movable comb plate to rotate, the movable comb plate drives the cylindrical concave plate to rotate, and the cylindrical concave plate rotates relative to the cylindrical convex plate, thereby meeting the longitudinal rotation angle requirement of the beam body.

[0019] In the present invention, when the first beam body undergoes a horizontal rotation angle, the first beam body drives the support frame to rotate in the horizontal direction, and the support frame drives the lower bottom basin and the connecting seat to rotate, wherein the lower bottom basin drives the arc-shaped concave plate to rotate, the arc-shaped concave plate rotates relative to the arc-shaped convex surfaces on both sides of the upper support plate, and the connecting seat rotates in the horizontal direction relative to the slide plate, thereby meeting the horizontal rotation angle requirement of the beam body.

[0020] In the present invention, when the first beam body undergoes lateral displacement, the first beam body drives the support frame to move in a direction perpendicular to the axis of the bridge, and the support frame drives the lower bottom basin and the connecting seat to move lateraly, wherein the lower bottom basin drives the elastic rubber plate and the middle steel lining plate to move, the middle steel lining plate slides lateraly relative to the upper support plate and the arc-shaped concave plate, and the connecting seat moves lateraly relative to the slide plate, the reaction seat, the pressure plate and the movable comb teeth, thereby meeting the requirements for large lateral displacement of the beam body, especially the large lateral displacement generated by an earthquake, so that the bridge has better seismic resistance.

[0021] In the present invention, when the first beam undergoes torsional deformation, the first beam drives the support frame to rotate laterally in the cross-sectional direction of the bridge, and the support frame drives the lower bottom basin and the connecting seat to rotate, wherein the lower bottom basin drives the elastic rubber plate to rotate. Since the elastic rubber plate has elasticity, it can undergo corresponding torsional deformation, thereby causing the lower bottom basin to rotate laterally relative to the middle steel liner and the upper support plate, and the connecting seat drives the slide plate to rotate, and the slide plate drives the reaction seat and the pressure plate to move vertically through the clamping spring, and the pressure plate drives a plurality of movable comb teeth to rotate corresponding angles around the rotating shaft respectively, and the other end of the movable comb teeth adjusts the vertical displacement through the elastic rubber pad, thereby satisfying the torsional deformation requirements of the beam.

[0022] 3. In the present invention, through the cooperation of the multi-directional displacement device, the anti-warping tooth device and the cylindrical displacement device, the bridge expansion device has a multi-directional displacement function, which can improve the safety of bridge use when dealing with the influence of temperature, heavy load, strong wind, ocean current, tide and earthquake. Moreover, in the displacement adjustment process, the fixed comb tooth bar and the movable comb tooth bar are always in a staggered meshing state, which can form a continuous vehicle passing surface and ensure the safety and comfort of driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a structural schematic diagram of another perspective of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the multi-directional displacement device of the present invention;

[0027] Figure 4It is a schematic diagram of the structure of the elastic rubber plate and the middle steel lining plate of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the anti-warping tooth device of the present invention;

[0029] Figure 6 It is a schematic structural diagram of a partial cross-section of the anti-warping tooth device of the present invention;

[0030] Figure 7 It is a partial cross-sectional structural diagram of the cooperation between the movable comb teeth and the cylindrical displacement device of the present invention;

[0031] Figure 8 It is a schematic diagram of the structure of the connection plate and the double-layer water stop belt of the present invention.

[0032] In the figure: 1. first beam body; 2. second beam body; 3. lower supporting pad; 4. fixed comb plate; 5. movable comb plate; 6. rubber displacement pad; 7. embedded steel bars; 8. cast-in-place concrete; 9. fixed comb bar; 10. movable comb bar; 101. supporting frame; 102. lower bottom basin; 103. elastic rubber plate; 104. middle steel lining plate; 105. upper support plate; 106. arc-shaped concave plate; 107. rotating shaft; 201. connecting seat; 202. sliding plate; 203. pressure plate; 204. reaction seat; 205. compression spring; 206. adjusting bolt; 207. limiting plate; 301. elastic rubber pad; 302. cylindrical concave plate; 303. cylindrical convex plate; 401. connecting plate; 402. double-layer water stop. DETAILED DESCRIPTION

[0033] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] like Figures 1 to 8As shown, the present embodiment proposes an adaptive large displacement and omnidirectional displacement comb tooth plate telescopic device, which is arranged between the first beam body 1 and the second beam body 2, and includes a lower support pad 3, a fixed comb tooth plate 4, a movable comb tooth plate 5, a multi-directional displacement device, an anti-warping tooth device and a column displacement device. The top of the second beam body 2 is provided with a mounting groove, and a pre-buried steel bar 7 is fixedly installed in the mounting groove. The lower support pad 3 is fixedly installed on the pre-buried steel bar 7. A plurality of fixed comb tooth bars 9 are provided on the fixed comb tooth plate 4, and a plurality of bolt holes are provided at the bottom end of each fixed comb tooth bar 9. Each threaded hole is used to install the fixed comb tooth bar 9 on the lower support pad 3 through a bolt. Since no bolts and nuts are provided on the upper surface of the fixed comb tooth plate 4, problems such as failure and damage of the telescopic device due to loosening or falling off of the bolts can be avoided, thereby making the telescopic device have better durability. During on-site construction, the lower support pad is fixed by pouring cast-in-place concrete 8. The plate 3, the fixed comb tooth plate 4 and the second beam body 2 are connected into a whole. The movable comb tooth plate 5 is arranged between the first beam body 1 and the second beam body 2. A plurality of movable comb tooth bars 10 are arranged on the movable comb tooth plate 5. The plurality of movable comb tooth bars 10 and the plurality of fixed comb tooth bars 9 are arranged alternately at intervals. A rubber displacement pad 6 is installed between the first beam body 1 and the movable comb tooth plate 5. The rubber displacement pad 6 is made of rubber material with elastic deformation ability and can be deformed with various displacements of the first beam body 1, thereby providing a displacement space for the telescopic device. The multi-directional displacement device is arranged on the first beam body 1 for adjusting the deformation and displacement of the first beam body 1 in multiple directions. The anti-warping tooth device is arranged on the first beam body 1 for adjusting the deformation and displacement of the first beam body 1 in multiple directions. A cylindrical displacement device is arranged between each movable comb tooth bar 10 and the lower support pad 3 for cooperating with the movable comb tooth bar 10 for displacement adjustment.

[0035] like Figures 1 to 4As shown, the multi-directional displacement device includes a support frame 101, a lower bottom basin 102, an elastic rubber plate 103, an intermediate steel lining plate 104, an upper support plate 105, an arc-shaped concave plate 106 and a rotating shaft 107. The support frame 101 is fixedly installed on the side wall of the first beam body 1, the lower bottom basin 102 is fixedly installed on the support frame 101, and a slide groove is provided on the lower bottom basin 102, a groove is provided at the bottom end of the slide groove, and an elastic rubber plate 103 is installed in the groove, the intermediate steel lining plate 104 is installed on the top of the elastic rubber plate 103, and the top of the intermediate steel lining plate 104 is slidably connected to the upper support plate 105, and the middle positions of both sides of the upper support plate 105 are provided with arc-shaped convex surfaces, and the upper support plate 105 is provided with a plurality of rotation grooves, and the middle position of the top of the intermediate steel lining plate 104 is slidably connected to two arc-shaped concave plates 106, each arc-shaped concave plate 1 The sides of 06 are all provided with arc-shaped concave surfaces, which match with the arc-shaped convex surfaces. The rotating shaft 107 passes through multiple rotation grooves and is fixedly connected to the upper support plate 105. Each movable comb plate 5 is rotatably connected in the corresponding rotation groove through the rotating shaft 107. The elastic rubber plate 103 is made of rubber material with elastic deformation ability. A boss is provided at the bottom end of the middle steel lining plate 104. The shape of the boss matches the shape of the elastic rubber plate 103. The elastic rubber plate 103 is sealed in the groove, which can reduce contact with external air and impurities and improve the durability of the elastic rubber plate 103. The elastic rubber plate 103 has elastic deformation ability. The middle steel lining plate 104 can rotate longitudinally and laterally relative to the lower bottom basin 102, and the elastic rubber plate 103 also has vibration reduction and noise reduction effects, which can improve the durability of the telescopic device and driving comfort.

[0036] like Figure 1 , Figure 5 and Figure 6 As shown, the anti-warping tooth device includes a connecting seat 201, a slide plate 202, a pressure plate 203, a reaction seat 204, a compression spring 205 and an adjusting bolt 206. The connecting seat 201 is fixedly connected to the support frame 101, and the bottom end of the connecting seat 201 is slidably connected to the slide plate 202. The side of each movable comb tooth bar 10 is fixedly installed with a pressure plate 203, and the bottom end of each pressure plate 203 is fixedly installed with a reaction seat 204. A compression spring 205 and an adjusting bolt 206 are installed between each reaction seat 204 and the slide plate 202. The adjusting bolt 206 It includes a screw and a locking nut. The sliding plate 202 is tightened against the connecting seat 201 by tightening the locking nut. The connecting seat 201 can slide laterally relative to the sliding plate 202, so that the telescopic device has a large lateral displacement function. During construction, the clamping force of the clamping spring 205 can be adjusted by rotating the locking nut, thereby adjusting the friction resistance when the connecting seat 201 and the sliding plate 202 slide relative to each other. In addition, a limiting plate 207 is provided on the connecting seat 201 to limit the sliding range of the connecting seat 201 on the sliding plate 202 to prevent the connecting seat 201 from sliding off.

[0037] like Figure 1 and Figure 7 As shown, the cylindrical displacement device includes an elastic rubber pad 301, a cylindrical concave plate 302 and a cylindrical convex plate 303. A support groove is provided at the bottom end of each movable comb tooth bar 10, and an elastic rubber pad 301 is installed in each support groove. A cylindrical concave plate 302 is installed at the bottom end of each elastic rubber pad 301, and a concave cylindrical surface is arranged at the bottom end of each cylindrical concave plate 302. A concave cylindrical surface is arranged at the bottom end of each cylindrical concave plate 302. A plurality of cylindrical convex plates 303 are slidably connected to the top end of the lower support pad 3, and a convex cylindrical surface is arranged at the top end of each cylindrical convex plate 303. The concave cylindrical surface and the convex cylindrical surface form a cylindrical match. The elastic rubber pad 301 is made of rubber material with elastic deformation ability, which can not only provide displacement space for the cylindrical displacement device, but also has the effect of reducing vibration and noise, thereby improving the durability and driving comfort of the telescopic device.

[0038] like Figures 1 to 8 As shown, connecting plates 401 are fixedly installed on the side walls opposite to each other of the first beam body 1 and the second beam body 2, and a double-layer waterstop 402 is fixedly installed between the two connecting plates 401. The bottom layer of the double-layer waterstop 402 is a stainless steel waterstop plate, and the upper layer is a rubber waterstop. The double-layer waterstop 402 has a double waterproof effect to prevent rainwater from penetrating into the first beam body 1 and the second beam body 2, and also has a supporting function. During the installation and construction of the telescopic device or the subsequent maintenance, the staff can stand on the double-layer waterstop 402 to carry out construction work.

[0039] In this embodiment, when the first beam undergoes longitudinal displacement, the first beam drives the support frame 101 to move along the axis of the bridge, the support frame 101 drives the multi-directional displacement device, the anti-warping tooth device and the movable comb plate 5 to move, and the movable comb plate 5 drives the column displacement device to slide on the lower support pad 3, thereby meeting the longitudinal displacement requirements of the beam.

[0040] In this embodiment, when the first beam body 1 undergoes a longitudinal rotation angle, the first beam body 1 drives the support frame 101 to rotate in the longitudinal section direction of the bridge, the support frame 101 drives the multi-directional displacement device, the anti-warping tooth device and the movable comb plate 5 to rotate, the movable comb plate 5 drives the cylindrical concave plate 302 to rotate, and the cylindrical concave plate 302 rotates relative to the cylindrical convex plate 303, thereby meeting the longitudinal rotation angle requirement of the beam body.

[0041] In this embodiment, when the first beam body 1 undergoes a horizontal rotation angle, the first beam body 1 drives the support frame 101 to rotate in the horizontal direction, and the support frame 101 drives the lower bottom basin 102 and the connecting seat 201 to rotate, wherein the lower bottom basin 102 drives the arc-shaped concave plate 106 to rotate, and the arc-shaped concave plate 106 rotates relative to the arc-shaped convex surfaces on both sides of the upper support plate 105, and the connecting seat 201 rotates in the horizontal direction relative to the slide plate 202, thereby meeting the horizontal rotation angle requirement of the beam body.

[0042] In this embodiment, when the first beam body 1 undergoes lateral displacement, the first beam body 1 drives the support frame 101 to move in a direction perpendicular to the axis of the bridge, and the support frame 101 drives the lower bottom basin 102 and the connecting seat 201 to move laterally, wherein the lower bottom basin 102 drives the elastic rubber plate 103 and the middle steel lining plate 104 to move, and the middle steel lining plate 104 slides laterally relative to the upper support plate 105 and the arc-shaped concave plate 106, and the connecting seat 201 moves laterally relative to the slide plate 202, the reaction seat 204, the pressure plate 203 and the movable comb tooth bar 10, thereby meeting the lateral large displacement and displacement requirements of the beam body.

[0043] In this embodiment, when the first beam body 1 undergoes torsional deformation, the first beam body 1 drives the support frame 101 to rotate laterally in the cross-sectional direction of the bridge, and the support frame 101 drives the lower bottom basin 102 and the connecting seat 201 to rotate, wherein the lower bottom basin 102 drives the elastic rubber plate 103 to rotate. Since the elastic rubber plate 103 is elastic, it can undergo corresponding torsional deformation, thereby causing the lower bottom basin 102 to rotate laterally relative to the middle steel lining plate 104 and the upper support plate 105, and the connecting seat 201 drives the slide plate 202 to rotate, and the slide plate 202 drives the reaction seat 204 and the pressure plate 203 to move vertically through the compression spring 205, and the pressure plate 203 drives multiple movable comb teeth 10 to rotate corresponding angles around the rotating shaft 107 respectively, and the other end of the movable comb teeth 10 adjusts the vertical displacement through the elastic rubber pad 301, thereby meeting the torsional deformation requirements of the beam body.

[0044] In this embodiment, through the cooperation of the multi-directional displacement device, the anti-warping tooth device and the cylindrical displacement device, the bridge expansion device has a multi-directional displacement function, and in the displacement adjustment process, the fixed comb tooth bar 9 and the movable comb tooth bar 10 are always in a staggered meshing state, which can form a continuous vehicle passing surface and ensure driving safety and comfort.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An adaptive large displacement omnidirectional displacement comb plate telescopic device, arranged between a first beam body (1) and a second beam body (2), characterized in that: include: A lower support pad (3), wherein the top end of the second beam body (2) is provided with a mounting groove, and the lower support pad (3) is fixedly mounted on the mounting groove; A fixed comb plate (4), the fixed comb plate (4) being fixedly mounted on the top of the lower support pad (3), and the fixed comb plate (4) comprising a plurality of fixed comb bars (9); A movable comb tooth plate (5), the movable comb tooth plate (5) being arranged between the first beam body (1) and the second beam body (2), the movable comb tooth plate (5) comprising a plurality of movable comb tooth bars (10), the plurality of movable comb tooth bars (10) and the plurality of fixed comb tooth bars (9) being arranged alternately and spaced apart; A multi-directional displacement device, the multi-directional displacement device being arranged on the first beam body (1) and being used for adjusting the deformation and displacement of the first beam body (1) in multiple directions; An anti-warping tooth device, the anti-warping tooth device being arranged on the first beam body (1) and being used for adjusting the deformation and displacement of the first beam body (1) in multiple directions; A cylindrical displacement device is provided between each of the movable comb teeth (10) and the lower support pad (3), and is used to cooperate with the movable comb teeth (10) to perform displacement adjustment.

2. The self-adaptive large displacement axially variable comb plate telescopic device according to claim 1, characterized in that: The multi-directional displacement device comprises: A support frame (101), the support frame (101) being fixedly mounted on the side wall of the first beam body (1); A lower bottom basin (102), wherein the lower bottom basin (102) is fixedly mounted on the support frame (101), and a slide groove is provided on the lower bottom basin (102); An elastic rubber plate (103), wherein a groove is provided at the bottom end of the slide groove, and the elastic rubber plate (103) is installed in the groove; An intermediate steel lining plate (104), the intermediate steel lining plate (104) being mounted on the top of the elastic rubber plate (103); An upper support plate (105), the top end of the middle steel liner (104) is slidably connected to the upper support plate (105), the middle positions of both sides of the upper support plate (105) are provided with arc-shaped convex surfaces, and the upper support plate (105) is provided with a plurality of rotation grooves; An arc-shaped concave plate (106), wherein two arc-shaped concave plates (106) are slidably connected to the middle position of the top end of the middle steel lining plate (104), and each arc-shaped concave plate (106) is provided with an arc-shaped concave surface on its side, and the arc-shaped concave surface matches the arc-shaped convex surface; A rotating shaft (107) passes through the plurality of rotating grooves and is fixedly connected to the upper support plate (105); each of the movable comb plates (5) is rotatably connected in the corresponding rotating groove via the rotating shaft (107).

3. The self-adaptive large displacement axially variable comb plate telescopic device according to claim 2, characterized in that: The anti-cranking device comprises: A connecting seat (201), wherein the connecting seat (201) is fixedly connected to the supporting frame (101); A slide plate (202), the bottom end of the connecting seat (201) being slidably connected to the slide plate (202); A pressing plate (203), the pressing plate (203) being fixedly mounted on the side surface of each of the movable comb teeth (10); A reaction seat (204), the bottom end of each of the pressing plates (203) being fixedly mounted with the reaction seat (204); A compression spring (205) and an adjusting bolt (206) are installed between each of the reaction seat (204) and the slide plate (202).

4. The self-adaptive large displacement axially variable comb plate telescopic device according to claim 3, characterized in that: The cylindrical displacement device comprises: An elastic rubber pad (301), wherein a support groove is provided at the bottom end of each of the movable comb teeth (10), and the elastic rubber pad (301) is installed in each of the support grooves; A cylindrical concave plate (302), the bottom end of each of the elastic rubber pads (301) being provided with the cylindrical concave plate (302), and the bottom end of each of the cylindrical concave plates (302) being provided with a concave cylindrical surface; A cylindrical convex plate (303), wherein the top end of the lower support pad (3) is slidably connected to a plurality of the cylindrical convex plates (303), and the top end of each cylindrical convex plate (303) is provided with a convex cylindrical surface, and the concave cylindrical surface forms a cylindrical fit with the convex cylindrical surface.

5. The self-adaptive large displacement axially variable comb plate telescopic device according to claim 4, characterized in that: A connecting plate (401) is fixedly installed on one side wall of the first beam body (1) and the second beam body (2) opposite to each other, and a double-layer waterstop (402) is fixedly installed between the two connecting plates (401), wherein the bottom layer of the double-layer waterstop (402) is a stainless steel waterstop plate, and the upper layer is a rubber waterstop.

6. The self-adaptive large displacement axially variable comb plate telescopic device according to claim 5, characterized in that: A rubber displacement pad (6) is installed between the first beam body (1) and the movable comb plate (5).

7. The self-adaptive large displacement axially variable comb plate telescopic device according to claim 6, characterized in that: A boss is provided at the bottom end of the middle steel lining plate (104), and the shape of the boss matches the shape of the elastic rubber plate (103).

8. The self-adaptive large displacement axially variable comb plate telescopic device according to claim 7, characterized in that: A limiting plate (207) is provided on the connecting seat (201).

9. The self-adaptive large displacement axially variable comb plate telescopic device according to claim 7, characterized in that: The rubber displacement pad (6), the elastic rubber plate (103) and the plurality of elastic rubber pads (301) are all made of a rubber material having elastic deformation capability.

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