Translation trolley with automatic limiting device and creeping formwork for bridge construction

By installing an automatic limit device on the translation trolley, the problem of difficulty in fixing the climbing formwork to the control platform after it has climbed up has been solved, thus achieving automatic limit and safety assurance during the construction process.

CN223974490UActive Publication Date: 2026-03-06YUNNAN JIAOTONG HIGHWAY CONSTR SECOND ENG CO LTD
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Patent Information

Application Number
CN202520774022.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2026-03-06
Estimated Expiration
2035-04-23

AI Technical Summary

Technical Problem

In existing technologies, it is difficult to fix the translation trolley on the control platform after the climbing formwork is raised during bridge construction. This makes it difficult for construction personnel to fix it synchronously, which can easily lead to misalignment and affect safety.

Method used

Design a translation trolley equipped with an automatic limiting device, including a mounting base, a translation base, a drive mechanism, and a limiting mechanism. The drive mechanism drives the translation base to move between a first position and a second position, and the limiting mechanism automatically limits the translation base to the mounting base to prevent position changes due to wind.

Benefits of technology

It enables the translation trolley to automatically limit its position during construction, preventing changes in relative position, eliminating safety hazards, and ensuring smooth construction.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a translation trolley provided with an automatic limiting device and a creeping formwork for bridge construction, which are used for solving the problem that the translation trolley is difficult to fix on a control platform after the creeping formwork climbs in the prior art, and comprises a mounting seat, a translation seat, a driving mechanism and a limiting mechanism, the driving mechanism drives the limiting mechanism to move while driving the translation seat to move between the first position and the second position, so that when the translation seat moves to the second position, the limiting mechanism is utilized to automatically limit the translation seat on the mounting seat, and the situation that the transverse plate vertical back arris is damaged in the process that a constructor fixes the transverse plate vertical back arris on a pier column is prevented. The transverse plate, the vertical back ridges and the module top platform are influenced by wind power, so that the relative position between the translation seat and the mounting seat is changed, the construction of constructors is influenced, and potential safety hazards are avoided.
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Description

Technical Field

[0001] This utility model belongs to the field of pier construction, and in particular relates to a translation trolley equipped with an automatic limit device and a climbing formwork for bridge construction. Background Technology

[0002] In the construction of bridge piers, climbing formwork is also required. It typically includes a control platform, a top platform, a climbing mechanism, and a translating trolley. The translating trolley is positioned between the control platform and the top platform, connected by horizontal plates and vertical back braces. The translating trolley is connected to the control platform by machine position vertical back braces. During use, the horizontal plates, vertical back braces, and machine position vertical back braces are fixedly connected to the side of the pier using tie rods and other structures. When the climbing formwork is ascending, the fixed connections between the horizontal plates, vertical back braces, and machine position vertical back braces and the pier are first removed. The translating trolley then moves the horizontal plates, vertical back braces, and top platform away from the pier. The climbing mechanism then drives the control platform upwards, thereby raising the entire climbing formwork.

[0003] After the climbing formwork has climbed upwards and the translation trolley has been reset to a position that facilitates fixing the horizontal plate, vertical back rib, and machine position vertical back rib to the pier, the translation trolley needs to be limited on the control platform to prevent relative displacement between the translation trolley and the control platform due to wind or other factors, which would affect the subsequent fixing of the horizontal plate, vertical back rib, and machine position vertical back rib to the pier using tie rods.

[0004] In the prior art, bolts are usually used for limiting. When using this method, because the translation trolley is usually large, it is difficult for construction workers to simultaneously fix multiple fixed positions of the translation trolley. As a result, after the construction workers fix one side, the other side is affected by the wind and its relative position with the control platform is still misaligned, which makes it impossible for the construction workers to fix it. In severe cases, it may also affect the safety of the construction workers. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a translation trolley equipped with an automatic limit device and a climbing formwork for bridge construction, so as to solve the problem that it is difficult to fix the translation trolley on the control platform after the climbing formwork has climbed.

[0006] To achieve the above and other related objectives, this utility model provides a translation trolley equipped with an automatic limiting device, including a mounting base, a translation base, a drive mechanism, and a limiting mechanism; the translation base, drive mechanism, and limiting mechanism are disposed on the mounting base, the translation base has a first position and a second position on the mounting base, and the limiting mechanism is disposed corresponding to the first position; the drive mechanism is used to drive the translation base to move between the first position and the second position and to drive the limiting mechanism to move, so as to limit the translation base to the first position.

[0007] Optionally, the driving mechanism includes a driving component and a first trigger component; the driving component is disposed on the bottom surface of the mounting base, and the movable end of the driving component is connected to the translational seat and the first trigger component; the mounting base is provided with two first clearance grooves, and the bottom of the translational seat is provided with two locking blocks; the limiting mechanism includes a trigger component, two oppositely arranged jaws, and two reset components; the reset components, the first clearance grooves, the jaws, and the locking blocks are arranged in a one-to-one correspondence; the fixed end of the jaw is slidably connected to the mounting base, and the clamping end of the jaw passes through the first clearance groove and is connected to the locking block; the fixed end of the reset component is disposed on the bottom surface of the mounting base, and the movable end of the reset component is connected to the jaw, for driving the two jaws to move towards each other; the trigger component is disposed on the bottom surface of the mounting base and is at least partially located between the two jaws, the trigger component is used to connect with the first trigger component, and the driving component drives the trigger component to move, thereby driving the two jaws to move away from each other.

[0008] Optionally, the clamping end of the claw is provided with a first side plate, a second side plate, and a horizontal plate. The first side plate, the second side plate, and the horizontal plate are arranged perpendicularly to each other. The first side plate and the second side plate are arranged perpendicularly to the fixed end of the claw, and the horizontal plate is located on the end of the first side plate and the second side plate away from the fixed end of the claw. The bottom of the translation seat is provided with two locking grooves. The two locking grooves are connected to the corresponding first clearance grooves. The locking grooves and the locking blocks are arranged in a one-to-one correspondence. The locking blocks are arranged on the side walls of the two locking grooves that are opposite to each other. There is a first clearance gap between the locking block and the bottom of the locking groove to accommodate the horizontal plate, and there is a second clearance gap between the side of the locking block away from the pier and the side wall of the locking groove away from the pier to accommodate the second side plate.

[0009] Optionally, the limiting mechanism further includes a first guide member, which is disposed on the bottom surface of the mounting base, and the fixed end of the pawl is slidably connected to the mounting base through the first guide member.

[0010] Optionally, the mounting base is further provided with a second clearance groove, and a transmission component is provided on the bottom surface of the translation base; the first trigger component includes a third clearance groove and a first triangular trigger part, and one end of the transmission component passes through the second clearance groove and is located in the third clearance groove; the trigger assembly includes a second trigger component and a cam, the cam is rotatably connected to the bottom surface of the mounting base and is located between the two jaws, the second trigger component is slidably connected to the bottom surface of the mounting base, and one end of the second trigger component is configured as a second triangular trigger part adapted to the first triangular trigger part; the first trigger component drives the second trigger component to slide on the mounting base, thereby driving the cam to rotate, and thus driving the two jaws to move in opposite directions.

[0011] Optionally, the triggering component also includes a gear, which is coaxially arranged with the cam, and a rack is provided on the second trigger, which meshes with the gear.

[0012] Optionally, the triggering component further includes a second guide member disposed on the bottom surface of the mounting base, and the second trigger member is slidably connected to the mounting base via the second guide member.

[0013] Optionally, the reset assembly includes a guide post, a guide sleeve, and an elastic element. One end of the guide post is disposed on the fixed end of the chuck, and the other end is located inside the guide sleeve. The end of the guide sleeve away from the guide post is connected to the mounting base. The elastic element is sleeved on the guide post, with one end connected to the chuck and the other end connected to the guide sleeve.

[0014] On the other hand, a climbing formwork for bridge construction is also provided, including a control platform, a module top platform, and a translation trolley as described above equipped with an automatic limit device; the mounting base is located on the top of the control platform, and the module top platform is located on the top surface of the translation base.

[0015] As described above, the present invention provides a translation trolley equipped with an automatic limiting device and a climbing formwork for bridge construction, which has at least the following beneficial effects: By setting the limiting mechanism, the driving mechanism drives the translation seat to move between the first position and the second position, while simultaneously driving the limiting mechanism to move. This allows the translation seat to be automatically limited to the mounting seat by the limiting mechanism when it reaches the second position. This prevents the relative position between the translation seat and the mounting seat from changing due to wind force affecting the horizontal plate, vertical back rib, and top platform of the module during the process of fixing the horizontal plate and vertical back rib to the pier, thus affecting the construction work and eliminating potential safety hazards. Attached Figure Description

[0016] Figure 1 The diagram shown is an angle view of a translation trolley equipped with an automatic limiting device according to this utility model.

[0017] Figure 2 This is a schematic diagram of another angle of a translation trolley equipped with an automatic limiting device according to this utility model.

[0018] Figure 3 The diagram shown is a schematic diagram of another angle of the translation trolley equipped with an automatic limiting device according to this utility model.

[0019] Figure 4 The diagram shown is a structural schematic of a translation seat of a translation trolley equipped with an automatic limit device according to this utility model.

[0020] Figure 5 The diagram shows a structural schematic of a mounting base for a translation trolley equipped with an automatic limit device according to this utility model.

[0021] Figure 6 The diagram shows the structure of the gripper of a translation trolley equipped with an automatic limiting device according to this utility model.

[0022] Figure 7 Displayed as Figure 1 An enlarged diagram of point A in the diagram.

[0023] Figure 8 The diagram shown is a structural schematic of a climbing formwork for bridge construction according to this utility model. Detailed Implementation

[0024] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0025] Please refer to all the accompanying drawings below. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0026] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.

[0027] Please see Figure 1-3This utility model provides a translation trolley equipped with an automatic limiting device, including a mounting base 1, a translation base 2, a drive mechanism 3, and a limiting mechanism 4; the translation base 2, the drive mechanism 3, and the limiting mechanism 4 are disposed on the mounting base 1, the translation base 2 has a first position and a second position on the mounting base 1, and the limiting mechanism 4 is disposed corresponding to the first position; the drive mechanism 3 is used to drive the translation base 2 to move between the first position and the second position and to drive the limiting mechanism 4 to move, so as to limit the translation base 2 to the first position.

[0028] In practice, the module top platform 6 and the horizontal plate and vertical back rib 7 can be set on the translation seat 2, and the mounting seat 1 is set on the top of the control platform 5. The first position corresponds to the position where the horizontal plate and vertical back rib 7 are fixedly connected to the pier column; the second position corresponds to the position where the horizontal plate and vertical back rib 7 and the module top platform 6 are moved away from the pier column before the climbing formwork is lifted.

[0029] The top of the mounting base 1 may also be provided with a slide rail, and the bottom of the translation base 2 may be provided with a slide groove, thereby realizing the sliding connection between the mounting base 1 and the translation base 2. The slide rail can be a T-shaped rail, and the slide groove can be a T-shaped groove. Through the cooperation of the T-shaped rail and the T-shaped groove, not only can it play a role in sliding connection, but it can also limit the movement of the translation base 2 in other directions except for the translation movement between the first position and the second position. Optionally, after the limiting mechanism 4 limits the translation base 2, the translation base 2 can also be fixed to the mounting base 1 by means of bolts or other structures to further ensure that the relative position between the translation base 2 and the mounting base 1 does not change. Specifically, through holes for screws to pass through are provided on the translation base 2 and the mounting base 1, so as to fix the two with bolts.

[0030] In this embodiment, the limiting mechanism 4 is set so that the driving mechanism 3 drives the translation seat 2 to move between the first position and the second position, while simultaneously driving the limiting mechanism 4 to move. This allows the translation seat 2 to be automatically limited to the mounting seat 1 by the limiting mechanism 4 when it moves to the second position. This prevents the relative position between the translation seat 2 and the mounting seat 1 from changing due to wind force affecting the construction workers during the process of fixing the horizontal plate and vertical back rib 7 to the pier column, thus avoiding affecting the construction workers' work and eliminating potential safety hazards.

[0031] In order to ensure that the translation seat 2 is stably positioned on the mounting seat 1, two limiting mechanisms 4 are provided in this embodiment, and the driving mechanism 3 is located between the two limiting mechanisms 4. This arrangement can also ensure the stability of the operation of the driving mechanism 3. For ease of explanation, the following description will use one limiting mechanism 4, but it does not mean that this solution can only use one limiting mechanism 4.

[0032] Please see Figure 1-5The drive mechanism 3 may include a drive component 31 and a first trigger component 32. The drive component 31 is disposed on the bottom surface of the mounting base 1, and the movable end of the drive component 31 is connected to the translation base 2 and the first trigger component 32. The mounting base 1 is provided with two first clearance grooves 11, which are through grooves disposed on the mounting base 1. The bottom of the translation base 2 is provided with two locking blocks 21; the limiting mechanism 4 includes a trigger component 41, two opposing locking claws 42, and two reset components 43; the reset components 43, the first clearance groove 11, the locking claws 42, and the locking blocks 21 are arranged in a one-to-one correspondence; the fixed end of the locking claw 42 is slidably connected to the mounting base 1, and the clamping end of the locking claw 42 passes through the first clearance groove 11 and connects to the locking block 21; the fixed end of the reset component 43 is provided on the bottom surface of the mounting base 1, and the movable end of the reset component 43 is connected to the locking claw 42, used to drive the two locking claws 42 to move towards each other; the trigger component 41 is provided on the bottom surface of the mounting base 1, and at least partially located between the two locking claws 42, the trigger component 41 is used to connect with the first trigger member 32, and the drive member 31 drives the trigger component 41 to move, so as to drive the two locking claws 42 to move away from each other. The drive member 31 can be a motor or other drive element. In this embodiment, the drive member 31 is a hydraulic cylinder, which has a large output torque to facilitate the movement of the translation base 2.

[0033] Please see Figure 1-6 The bottom of the translation seat 2 is provided with two locking grooves 22, which are connected to the corresponding first clearance grooves 11. Locking blocks 21 are provided on the opposite sidewalls of the two locking grooves 22. A first clearance gap 24 exists between the locking block 21 and the bottom of the locking groove 22, allowing clearance for the locking claw 42. A second clearance gap 25 exists between the side of the locking block 21 away from the pier and the sidewall of the locking groove 22 away from the pier. The clamping end of the locking claw 42 is provided with a first side plate 421, a second side plate 422, and a horizontal plate 423. The first side plate 421, the second side plate 422, and the horizontal plate 423 are arranged perpendicularly to each other. The first side plate 421 and the second side plate 422 are perpendicular to the fixed end of the locking claw 42, and the horizontal plate 423 is located on the end of the first side plate 421 and the second side plate 422 away from the fixed end of the locking claw 42. When the claw 42 and the locking block 21 are engaged, the horizontal plate 423 is partially located within the first clearance gap 24, and the second side plate 422 is partially located within the second clearance gap 25. This prevents the translation seat 2 and the mounting seat 1 from tilting by the side contact between the horizontal plate 423 and the locking block 21. The action of the second side plate 422 and the locking block 21 prevents the translation seat 2 from moving to the second position.

[0034] The limiting mechanism 4 may also include a first guide member 44, which is disposed on the bottom surface of the mounting base 1. The fixed end of the claw 42 is slidably disposed on the mounting base 1, thereby realizing a sliding connection between the fixed end of the claw 42 and the mounting base 1. The first guide member 44 may be a guide rail, or of course other guide structures. This embodiment does not limit this.

[0035] The mounting base 1 may also be provided with a second clearance groove 12, which is a through groove. A transmission component 23 is provided on the bottom surface of the translation base 2. The transmission block can be a block-shaped structure fixedly mounted on the bottom surface of the translation base 2. The transmission component 23 passes through the second clearance groove 12 and connects to the movable end of the driving component 31. When the pawl 42 engages with the locking block 21, the transmission component 23 abuts against the side wall of the second clearance groove 12 near the pier, preventing the translation base 2 from continuing to move closer to the pier. In this embodiment, the transmission component 23, pawl 42, and locking block 21 are used to achieve the upper limit of the translation base 2 on the mounting base 1, preventing changes in the relative position of the translation base 2 and the mounting base 1.

[0036] The first trigger 32 may include a first trigger 32 body, a third clearance groove 321, and a first triangular trigger portion 322. The third clearance groove 321 is a through groove structure, and the transmission member 23 passes through the second clearance groove 12 and is located within the third clearance groove 321. One side wall of the first triangular trigger portion 322 may be integrally formed with the first trigger 32 body. The other two side walls of the first triangular trigger portion 322 are used to trigger the movement of the second trigger 411. The side wall of the first triangular trigger portion 322 closest to the pier is defined as the first trigger portion 3221, and the side wall furthest from the pier is defined as the second trigger portion 3222.

[0037] The trigger assembly 41 may include a second trigger 411 and a cam 412. The cam 412 is rotatably connected to the bottom surface of the mounting base 1 and is located between two jaws 42, abutting against the fixed ends of the two jaws 42. The second trigger 411 is slidably connected to the bottom surface of the mounting base 1, such as through a guide rail. One end of the second trigger 411 is provided with a second triangular trigger portion adapted to the first triangular trigger portion 322. The side wall of the second triangular trigger member near the pier is defined as the third trigger portion 4113, and the side wall away from the pier is defined as the fourth trigger portion 4114.

[0038] like Figure 1 As shown on the right, at this time, the translation seat 2 is in the first position, and the two jaws 42 are in a clamping state. When the drive mechanism 3 moves the translation seat 2 from the first position to the second position, the first trigger part 3221 of the first trigger member 32 first abuts against the third trigger part 4113 of the second trigger member 411, causing the second trigger member 411 to move to the right on the mounting seat 1. The second trigger member 411 drives the cam 412 to rotate, which in turn drives the two jaws 42 to move in opposite directions, so that the two jaws 42 disengage from the clamping block 21 and are in an unclamped state. During this process, the transmission member 23 is in the third clearance groove 321. At this time, the transmission member 23 does not abut against the side wall of the third clearance groove 321, that is, the translation seat 2 does not move relative to the mounting seat 1.

[0039] When the first triangular trigger part 322 abuts against the vertex of the second triangular trigger part, the two claws 42 are completely disengaged from the block 21, and the transmission component 23 abuts against the side wall of the third clearance groove 321 near the pier. As the drive component 31 continues to move... Figure 1 As the first trigger 32 moves downwards, its second trigger portion 3222 abuts against its fourth trigger portion 4114. At this time, under the action of the reset component 43 and as the force of the second trigger 411 gradually diminishes, the two claws 42 move closer together. Simultaneously, the transmission component 23 abuts against the side wall of the third clearance groove 321 near the pier, meaning the drive component 31 drives the translation seat 2 to move downwards. During this process, as the translation seat 2 moves, the claws 42 gradually move outside the locking groove 22 of the translation seat 2. As the translation seat 2 continues to move, the claws 42, under the action of the reset component 43, reset to the clamping state. In other words, during the contact between the second trigger part 3222 and the fourth trigger part 4114, the two claws 42 switch from an unclamped state to a clamped state, and the two claws 42 move from inside the clamping groove 22 to outside the clamping groove 22; and with the movement of the translation seat 2, the claws 42 do not engage with the clamping block 21, that is, in the clamping state at this time, the two claws do not clamp the clamping block 21.

[0040] To enable the second trigger 411 to drive the cam 412 to rotate, this embodiment includes a gear 413 coaxially mounted on the cam 412 and a rack 4111 mounted on the second trigger 411. The meshing of the gear 413 and rack 4111 drives the cam 412 to rotate. For smoother operation of the second trigger 411, the trigger assembly 41 may also include a second guide 414. The second guide 414 is mounted on the bottom surface of the mounting base 1, and the second trigger 411 is slidably mounted on the second guide 414, thus achieving a sliding connection between the second trigger 411 and the mounting base 1. The second guide 414 can be a guide rail, or other guiding structures; this embodiment does not impose any limitations on this.

[0041] Please see Figure 1 , 7 The reset assembly 43 may include a guide post 431, a guide sleeve 432, and an elastic element 433. One end of the guide post 431 is disposed on the fixed end of the jaw 42, and the other end is located inside the guide sleeve 432. The end of the guide sleeve 432 away from the guide post 431 is connected to the mounting base 1. The elastic element 433 is sleeved on the guide post 431, with one end connected to the jaw 42 and the other end connected to the guide sleeve 432. The elastic element 433 can be an elastic structure with elastic force; in this embodiment, the elastic element 433 is a spring. Through the arrangement of the guide post 431, the elastic element 433, and the guide sleeve 432, the two jaws can be reset and maintained in the state of clamping the clamping block 21.

[0042] Please see Figure 8 On the other hand, this utility model also provides a climbing formwork for bridge construction, including a control platform 5, a modular top platform 6, and a translation trolley equipped with an automatic limit device as described above. A mounting base 1 is located on top of the control platform 5 and can be connected to the control platform 5 via a machine position vertical back brace 8. The modular top platform 6 is located on the top surface of the translation base 2 and can be mounted on the top surface of the translation base 2 via a horizontal plate vertical back brace 7. When fixing the climbing formwork for bridge pier construction to the pier, the machine position vertical back brace 8 and the horizontal plate vertical back brace 7 are also connected to the pier via tie rods or other structures.

[0043] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A translation carriage provided with an automatic limiting device, characterized in that: The mounting base, the translation base, the driving mechanism and the limiting mechanism are arranged on the mounting base, the translation base has a first position and a second position on the mounting base, and the limiting mechanism is arranged corresponding to the first position; The driving mechanism is used for driving the translation base to move between the first position and the second position and driving the limiting mechanism to move so as to limit the translation base in the first position. The driving mechanism comprises a driving member and a first trigger member; the driving member is arranged on the bottom surface of the mounting base, and the movable end of the driving member is connected with the translation base and the first trigger member; 2. The translation carriage provided with an automatic limiting device according to claim 1, characterized in that, The mounting base is provided with two first avoiding grooves, and the bottom of the translation base is provided with two clamping blocks; the limiting mechanism comprises a triggering assembly, two oppositely arranged clamping jaws and two reset assemblies; the reset assemblies, the first avoiding grooves, the clamping jaws and the clamping blocks are arranged one by one in correspondence; the fixed end of the clamping jaw is slidably connected with the mounting base, the clamping end of the clamping jaw is connected with the clamping block through the first avoiding groove; the fixed end of the reset assembly is arranged on the bottom surface of the mounting base, and the movable end of the reset assembly is connected with the clamping jaw for driving the two clamping jaws to move towards each other; the triggering assembly is arranged on the bottom surface of the mounting base and at least partially located between the two clamping jaws, the triggering assembly is used for being connected with the first trigger member, and the driving member drives the triggering assembly to move so as to drive the two clamping jaws to move away from each other. The clamping end of the clamping jaw is provided with a first side plate, a second side plate and a horizontal plate, the first side plate, the second side plate and the horizontal plate are arranged perpendicularly between each other, the first side plate and the second side plate are arranged perpendicularly with the fixed end of the clamping jaw, and the horizontal plate is located on the end of the first side plate and the second side plate away from the fixed end of the clamping jaw; 3. The translation carriage provided with an automatic limiting device according to claim 2, characterized in that, The bottom of the translation base is provided with two clamping grooves, the two clamping grooves are communicated with the corresponding first avoiding grooves, the clamping grooves and the clamping blocks are arranged one by one in correspondence, and the clamping blocks are arranged on the side walls oppositely arranged between the two clamping grooves; the clamping block and the groove bottom of the clamping groove have a first avoiding gap for accommodating the horizontal plate, and the side of the clamping block away from the pier and the side wall of the clamping groove away from the pier have a second avoiding gap for accommodating the second side plate. The limiting mechanism further comprises a first guide member, the first guide member is arranged on the bottom surface of the mounting base, and the fixed end of the clamping jaw is slidably connected with the mounting base through the first guide member.

4. The translation carriage provided with an automatic limiting device according to claim 3, characterized in that, The mounting base is further provided with a second avoiding groove, and the bottom surface of the translation base is provided with a transmission member; 5. A translation carriage provided with an automatic limiting device according to any one of claims 2-4, characterized in that, The first trigger member comprises a third avoiding groove and a first triangular trigger part, and one end of the transmission member is located in the third avoiding groove after passing through the second avoiding groove; ​ The trigger assembly comprises a second trigger and a cam, the cam is rotationally connected to the bottom surface of the mounting seat and located between the two clamping claws, the second trigger is slidingly connected to the bottom surface of the mounting seat, one end of the second trigger is provided with a second triangular trigger part matched with the first triangular trigger part; the first trigger drives the second trigger to slide on the mounting seat to drive the cam to rotate, thereby driving the two clamping claws to move in opposite directions.

6. A translation carriage provided with an automatic limiting device according to claim 5, characterized in that, The trigger assembly further comprises a gear, the gear and the cam are coaxially arranged, and a gear rack is arranged on the second trigger and engaged with the gear.

7. The translation carriage provided with an automatic limiting device according to claim 5, characterized in that, The trigger assembly further comprises a second guide, which is arranged on the bottom surface of the mounting seat, and the second trigger is slidingly connected to the mounting seat through the second guide.

8. The translation carriage provided with an automatic limiting device according to claim 2, characterized in that, The reset assembly comprises a guide column, a guide sleeve and an elastic member, one end of the guide column is arranged on the fixed end of the clamping claw, the other end is located in the guide sleeve, the end of the guide sleeve away from the guide column is connected with the mounting seat; the elastic member is sleeved on the guide column, one end of the elastic member is connected with the clamping claw, and the other end is connected with the guide sleeve.

9. A climbing form for bridge construction, characterized by: The device comprises a control platform, a module top platform and a translation trolley provided with an automatic limiting device according to any one of claims 1-8; the mounting seat is arranged on the top of the control platform, and the module top platform is arranged on the top surface of the translation seat.