Automatic limiting device and creeping formwork for pier construction of bridge

Abstract

The utility model provides an automatic limiting device and a creeping formwork for pier construction of a bridge, which are used for solving the problem that a vertical back ridge and a module top platform shake relative to a module main platform when the creeping formwork climbs upwards in the prior art. The device comprises a mounting seat, a translation seat, a driving mechanism and a limiting mechanism, through the arrangement of a first mounting block, a first limiting block and a limiting assembly, when the translation seat is located at the second position, the first mounting block abuts against the side wall, away from the pier column, of the fourth avoiding groove, and the side wall, close to the mounting seat, of the first limiting block abuts against the bottom face of the mounting seat, that is, an L-shaped structure formed by the first mounting block and the first limiting block hooks the mounting seat; the limiting assembly abuts against the side wall, close to the pier column, of the first limiting block, the translation base can be prevented from inclining relative to the installation base, the problem that in the climbing process of the creeping formwork, due to the influence of wind power, a transverse plate vertical back ridge and a module top platform shake can be solved, and it is ensured that the creeping formwork can climb safely.

Description

Technical Field

[0001] This utility model belongs to the field of pier construction, and in particular relates to an automatic limiting device and a climbing formwork for bridge pier 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] However, since the translation trolley and the control platform are slidably connected, and during the climbing process, the climbing formwork is affected by wind, causing the horizontal plates, vertical back ribs, and top platform of the module to sway relative to the main platform of the module, which affects the upward climbing efficiency of the climbing formwork and may cause safety accidents in severe cases. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide an automatic limiting device and a climbing formwork for bridge pier construction, which solves the problem that the vertical back ribs and the top platform of the module sway relative to the main platform of the module when the climbing formwork is climbing upward.

[0005] To achieve the above and other related objectives, this utility model provides an automatic limiting device, comprising: a mounting base, a translation base, a drive mechanism, and a limiting mechanism; the translation base and the drive mechanism are disposed on the mounting base, and the drive mechanism is connected to the translation base; the translation base has a first position and a second position on the mounting base; the limiting mechanism includes a first mounting block, a first limiting block, and a limiting component; a first clearance groove is provided on the mounting base, the first mounting block is disposed on the bottom surface of the translation base, one end of which passes through the first clearance groove and connects to the first limiting block, the first mounting block and the first limiting block forming an L-shaped structure; the width of the first limiting block is greater than the width of the first clearance groove; the limiting component is disposed on the bottom surface of the mounting base and corresponds to the second 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 component to move, so that when the translation base moves to the second position, the limiting component abuts against the first limiting block to fix the translation base in the second position.

[0006] Optionally, the limiting component includes a fixed frame, a rotating shaft, and a second limiting block. The fixed frame is disposed on the bottom surface of the mounting base, the rotating shaft is rotatably connected to the fixed frame, and the second limiting block is disposed on the rotating shaft. The driving mechanism drives the rotating shaft to rotate, thereby causing the second limiting block to abut against the first limiting block.

[0007] Optionally, the drive mechanism includes a drive component and a trigger component; the drive component is disposed on the bottom surface of the mounting base, and the movable end of the drive component is connected to the translation base and the trigger component, the trigger component being used to connect with the rotating shaft; when the drive component drives the translation base to move from the first position to the second position, the trigger component is connected to the rotating shaft to drive the rotating shaft to rotate in the first direction; when the drive component drives the translation base to move from the second position to the first position, the trigger component drives the rotating shaft to rotate in the second direction, and when the translation base is in the first position, the trigger component disengages from the rotating shaft; wherein, the first direction and the second direction are opposite directions.

[0008] Optionally, the limiting assembly also includes a gear disposed on the rotating shaft, and the trigger is a rack for meshing with the gear.

[0009] Optionally, the drive mechanism also includes a guide member, which is disposed on the bottom surface of the mounting base, and the trigger member is slidably connected to the guide member.

[0010] Optionally, the mounting base is provided with a first clearance groove, and the bottom of the translation base is provided with a transmission component, one end of which passes through the first clearance groove and is connected to the movable end of the driving component.

[0011] Optionally, the mounting bracket is further provided with a second mounting block, on which a spring plunger is provided, and on which a second limiting block is provided a snap-fit ​​hole. The spring plunger is used to connect with the snap-fit ​​hole. When the driving member drives the translation seat to move from the first position to the second position, the trigger member is connected to the rotating shaft to drive the spring plunger to disengage from the snap-fit ​​hole, so that the rotating shaft rotates in the first direction. When the driving member drives the translation seat to move from the second position to the first position, the trigger member drives the rotating shaft to rotate in the second direction, so that the spring plunger is snapped into the snap-fit ​​hole.

[0012] Optionally, the side of the first limiting block near the second position is flush with the side of the translation seat near the second position.

[0013] On the other hand, this utility model also provides a climbing formwork for bridge pier construction, including a control platform, a module top platform, and an automatic limiting device as described above; the mounting base is set on the top of the control platform, and the module top platform is set on the top surface of the translation base.

[0014] As described above, the automatic limiting device and the climbing formwork for bridge pier construction of this utility model have at least the following beneficial effects: By setting the first mounting block, the first limiting block and the limiting component, when the translation seat is in the second position, the first mounting block abuts against the side wall of the fourth clearance groove away from the pier column, and the side wall of the first limiting block near the mounting seat abuts against the bottom surface of the mounting seat. That is, the L-shaped structure formed by the first mounting block and the first limiting block hooks the mounting seat, and the limiting component abuts against the side wall of the first limiting block near the pier column, which can prevent the translation seat from tilting relative to the mounting seat, and can prevent the climbing formwork from shaking due to the influence of wind during the climbing process, thus ensuring that the climbing formwork can climb safely. Attached Figure Description

[0015] Figure 1 The diagram shown is a schematic diagram of an angle structure of an automatic limiting device according to this utility model.

[0016] Figure 2 This is a schematic diagram of the automatic limiting device of this utility model from another angle.

[0017] Figure 3 The diagram shown is a schematic diagram of the automatic limiting device of this utility model from another angle.

[0018] Figure 4 The diagram shown is an angle structural schematic of the translation seat of an automatic limiting device according to this utility model.

[0019] Figure 5 The diagram shown is a schematic diagram of the angle structure of the limiting component of an automatic limiting device according to this utility model.

[0020] Figure 6 Displayed as Figure 5 An enlarged diagram of point A in the diagram.

[0021] Figure 7 The diagram shown is a structural schematic of a climbing formwork for bridge pier construction according to this utility model. Detailed Implementation

[0022] 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.

[0023] 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.

[0024] 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.

[0025] Please see Figure 1-4 This utility model provides an automatic limiting device, including: a mounting base 1, a translation base 2, a drive mechanism 3, and a limiting mechanism; the translation base 2 and the drive mechanism 3 are disposed on the mounting base 1, and the drive mechanism 3 is connected to the translation base 2; the translation base 2 has a first position and a second position on the mounting base 1; the limiting mechanism includes a first mounting block 41, a first limiting block 42, and a limiting component 43; the mounting base 1 is provided with a first clearance groove 11, and the first mounting block 41 is disposed on the bottom surface of the translation base 2, with one end passing through the first clearance groove 11 and... The first limiting block 42 is connected, and the first mounting block 41 and the first limiting block 42 form an L-shaped structure; the width of the first limiting block 42 is greater than the width of the first clearance groove 11; the limiting component 43 is set on the bottom surface of the mounting base 1 and is set corresponding to the second position; the driving mechanism 3 is used to drive the translation seat 2 to move between the first position and the second position, and to drive the limiting component 43 to move, so that when the translation seat 2 moves to the second position, the limiting component 43 abuts against the first limiting block 42 to fix the translation seat 2 in the second position.

[0026] 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.

[0027] 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 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.

[0028] In this embodiment, by setting up the first mounting block 41, the first limiting block 42, and the limiting component 43, when the translation seat 2 is in the second position, the first mounting block 41 abuts against the side wall of the fourth clearance groove away from the pier column, and the first limiting block 42 abuts against the bottom surface of the mounting seat 1 near the side wall of the mounting seat 1. That is, the L-shaped structure formed by the first mounting block 41 and the first limiting block 42 hooks the mounting seat 1, and the limiting component 43 abuts against the side wall of the first limiting block 42 near the pier column. This can prevent the translation seat 2 from tilting relative to the mounting seat 1, and can prevent the horizontal plate vertical back rib 7 and the module top platform 6 from shaking due to the influence of wind during the climbing process, ensuring that the climbing formwork can climb safely.

[0029] In order to ensure that the translation seat 2 is stably positioned on the mounting seat 1, two limiting mechanisms are provided in this embodiment, and the drive mechanism 3 is located between the two limiting mechanisms. This arrangement can also ensure the stability of the operation of the drive mechanism 3. For ease of explanation, the following description will use one limiting mechanism, but it does not mean that this solution can only use one limiting mechanism.

[0030] Please see Figure 1 , 4 The driving mechanism 3 may include a driving component 31 and a trigger component 32. The driving component 31 is disposed on the bottom surface of the mounting base 1, and the movable end of the driving component 31 is connected to the translation seat 2 and the trigger component 32. To ensure the smooth operation of the driving component 31, the trigger component 32 and the bottom surface of the base can be connected by a guide component 33, which can be a guide rail, thereby realizing a sliding connection between the trigger component 32 and the base. The driving component 31 may be a driving element such as a motor. In this embodiment, the driving component 31 is a hydraulic cylinder with a large output torque to facilitate the movement of the translation seat 2. The mounting base 1 may also be provided with a second clearance groove 12, and the bottom surface of the translation seat 2 is provided with a transmission component 21. One end of the transmission component 21 passes through the second clearance groove 12 and is connected to the movable end of the driving component 31. The transmission component 21 may be a transmission block structure. Of course, in other implementations, the transmission component 21 may also be in other structural forms, which are not limited in this embodiment.

[0031] Please see Figure 1-2 5. The limiting component 43 may include a fixed frame 431, a rotating shaft 432, and a second limiting block 433. The fixed frame 431 is disposed on the bottom surface of the mounting base 1, the rotating shaft 432 is rotatably connected to the fixed frame 431, and the second limiting block 433 is disposed on the rotating shaft 432. The rotating shaft 432 is connected to the trigger member 32. When the driving member 31 drives the translation base 2 to move from the first position to the second position, the trigger member 32 is connected to the rotating shaft 432 to drive the rotating shaft 432 to rotate in the first direction. When the driving member 31 drives the translation base 2 to move from the second position to the first position, the trigger member 32 drives the rotating shaft 432 to rotate in the second direction, and when the translation base 2 is in the first position, the trigger member 32 disengages from the rotating shaft 432. The first direction and the second direction are opposite directions. In this embodiment, the first direction is clockwise and the second direction is counterclockwise.

[0032] Specifically, the limiting component 43 includes a second gear 434 disposed on the rotating shaft 432 and a second rack as the trigger element 32. Through the meshing action of the second rack and the second gear 434, the rotating shaft 432 can be driven to rotate, thereby causing the second limiting block 433 and the first limiting block 42 to abut or not abut.

[0033] In addition, please see Figure 5-6 Because the driving member 31 drives the trigger member 32 to travel a long distance, in order to avoid the rotation angle of the rotating shaft 432 being too large, causing the second limiting block 433 to abut against the fixed frame 431, in this embodiment, a second mounting block 435 is provided on the fixed frame 431, a spring plunger 436 is provided on the second mounting block 435, and a snap-fit ​​hole 4331 is provided on the second limiting block 433. The spring plunger 436 is used to connect with the snap-fit ​​hole 4331. When the driving member 31 drives the translation seat 2 to move from the first position to the second position, the trigger member 32 meshes with the second gear 434 on the rotating shaft 432 to drive the rotating shaft 432 to rotate in the first direction, so that the spring plunger 436 on the fixed frame 431 disengages from the snap-fit ​​hole 4331 on the second limiting block 433, so that the second limiting block 433 can rotate with the rotating shaft 432 and finally abut against the first limiting block 42. When the driving member 31 moves the translation seat 2 from the second position to the first position, the trigger member 32 is still engaged with the second gear 434, causing the second limiting block 433 to first disengage from the first limiting block 42. Then, during the rotation of the rotating shaft 432, the locking hole 4331 of the second limiting block 433 engages with the spring plunger 436. After the spring plunger 436 engages with the locking hole 4331, the trigger member 32 disengages from the second gear 434, thus keeping the second limiting block 433 engaged with the spring plunger 436.

[0034] Because the mounting base 1 is provided with a first clearance groove 11, and the first limiting block 42 is correspondingly provided with the first clearance groove 11, during use, construction materials such as concrete will fall from the first clearance groove 11 onto the control platform 5. In this embodiment, in order to prevent construction materials from falling onto the surface of the first limiting block 42 near the mounting base 1, the side of the first limiting block 42 near the second position is set to be flush with the side of the translation seat 2 near the second position. In this way, construction materials can only fall onto the control platform 5 or the translation seat 2, preventing construction materials from accumulating on the side of the first limiting block 42 near the mounting base 1.

[0035] Please see Figure 7 On the other hand, this utility model also provides a climbing formwork for bridge pier construction, including a control platform 5, a modular top platform 6, and an automatic limiting 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 a translational seat 2 and can be mounted on the top surface of the translational seat 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.

[0036] 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. An automatic limit device, characterized in that, include: Mounting base, translation base, drive mechanism, and limit mechanism; The translation seat and the driving mechanism are disposed on the mounting base, and the driving mechanism is connected to the translation seat; the translation seat has a first position and a second position on the mounting base; The limiting mechanism includes a first mounting block, a first limiting block, and a limiting component; the mounting base is provided with a first clearance groove, the first mounting block is disposed on the bottom surface of the translation base, one end of which passes through the first clearance groove and connects to the first limiting block, the first mounting block and the first limiting block form an L-shaped structure; the width of the first limiting block is greater than the width of the first clearance groove; the limiting component is disposed on the bottom surface of the mounting base and is positioned corresponding to the second position; The driving mechanism is used to move the translation seat between a first position and a second position, and to move the limiting component so that when the translation seat moves to the second position, the limiting component abuts against the first limiting block to fix the translation seat in the second position.

2. The automatic limiting device according to claim 1, characterized in that: The limiting component includes a fixed frame, a rotating shaft, and a second limiting block. The fixed frame is disposed on the bottom surface of the mounting base, the rotating shaft is rotatably connected to the fixed frame, and the second limiting block is disposed on the rotating shaft. The driving mechanism drives the rotating shaft to rotate, thereby causing the second limiting block to abut against the first limiting block.

3. The automatic limiting device according to claim 2, characterized in that: The driving mechanism includes a driving component and a triggering 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 translation base and the trigger component. The trigger component is used to connect with the rotating shaft. When the driving member drives the translation seat to move from the first position to the second position, the trigger member is connected to the rotating shaft to drive the rotating shaft to rotate along the first direction; When the driving member drives the translation seat to move from the second position to the first position, the trigger member drives the rotating shaft to rotate in the second direction, and when the translation seat is in the first position, the trigger member disengages from the rotating shaft. Wherein, the first direction and the second direction are opposite directions.

4. An automatic limiting device according to claim 3, characterized in that: The limiting component also includes a gear disposed on the rotating shaft, and the trigger is a rack, which is used to mesh with the gear.

5. An automatic limiting device according to claim 4, characterized in that: The drive mechanism further includes a guide member disposed on the bottom surface of the mounting base, and the trigger member is slidably connected to the guide member.

6. An automatic limiting device according to claim 3, characterized in that: The mounting base is provided with a second clearance groove, and the bottom surface of the translation base is provided with a transmission component. One end of the transmission component passes through the second clearance groove and is connected to the movable end of the driving component.

7. An automatic limiting device according to claim 3, characterized in that: The fixing frame is also provided with a second mounting block, the second mounting block is provided with a spring plunger, the second limiting block is provided with a snap-fit ​​hole, and the spring plunger is used to connect with the snap-fit ​​hole; When the driving member drives the translation seat to move from the first position to the second position, the trigger member is connected to the rotating shaft to drive the spring plunger to disengage from the snap hole, so that the rotating shaft rotates in the first direction; When the driving member moves the translation seat from the second position to the first position, the trigger member drives the rotating shaft to rotate in the second direction so that the spring plunger is engaged in the locking hole.

8. An automatic limiting device according to claim 1, characterized in that: The side of the first limiting block near the second position is flush with the side of the translation seat near the second position.

9. A climbing formwork for bridge pier construction, characterized in that: Includes a control platform, a module top platform, and an automatic limit device as described in any one of claims 1-8; The mounting base is disposed on the top of the control platform, and the module top platform is disposed on the top surface of the translation base.

Images