Bridge formwork with protective structure

Abstract

The utility model discloses a bridge formwork with a protective structure, which relates to the technical field of bridge formworks and comprises a bridge formwork, a protective mechanism is arranged on one side of the bridge formwork, and the protective mechanism comprises a buffer component and a force unloading component. The buffer assembly comprises a mounting plate mounted on one side of the bridge formwork through bolts, a mounting frame is arranged on the side, away from the bridge formwork, of the mounting plate, and a plurality of damping arms are arranged between the mounting plate and the mounting frame. The force unloading assembly comprises a plurality of anti-collision cylinders arranged at intervals in the length direction of the mounting frame, and the upper ends and the lower ends of the anti-collision cylinders are fixedly connected with rotary buffering pieces. According to the anti-collision device, the collision of foreign objects is decomposed and buffered through the rotating anti-collision barrel, the moving track of the foreign objects is changed, impact force is prevented from vertically acting on the bridge formwork, effective protection is provided, the buffering effect is improved, and safety and stability in the bridge construction process are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge formwork, in particular to a bridge formwork with a protection structure. Background Technique

[0002] As the name implies, bridge formwork is steel formwork applied to bridge projects. Such as: highway, expressway bridges, viaducts, overpasses, etc. Bridge formwork is divided into highway bridge formwork and railway bridge formwork. According to different conditions, bridge formwork can also be divided into single and double chamber box girders, he-shaped piers, pier formwork, abutments, cap beams, T-shaped bridge formwork, etc. Bridge formwork is assembled into a whole through sections of modules. In order to relieve urban traffic pressure, the existing expressways and viaducts are built at relatively high positions. During the construction of these expressways and viaducts, pier columns need to be made through bridge formwork, and the pier columns are relatively high, resulting in a relatively high height of the corresponding bridge formwork to be lapped.

[0003] After retrieval, the document with the publication number CN219839966U discloses a bridge formwork anti-collision structure, including: a plurality of spliced bridge formwork bodies, adjacent two spliced bridge formwork bodies are connected by a connecting frame, and an anti-collision mechanism is arranged between adjacent two connecting frames. The anti-collision mechanism includes a mounting plate and a buffer plate arranged on one side of the mounting plate. Under the combined action of fastening bolts and threaded holes, it is convenient to fixedly install the mounting plate between two connecting frames. Two groups of buffer structures are symmetrically arranged between the mounting plate and the buffer plate. When the buffer plate is hit, the buffer plate approaches the mounting plate. At this time, through the elastic deformation of the first buffer anti-collision component, the second buffer anti-collision component, the first buffer support member and the second buffer support member, the impact force can be well buffered and offset. It can provide good buffer anti-collision protection for the spliced bridge formwork body located inside the anti-collision mechanism.

[0004] In the above-mentioned prior art, only a spring is used to absorb energy and buffer the collision, and the buffer effect is poor. Moreover, the collision trajectory between the foreign object and the bridge formwork cannot be changed. Although the buffer is carried out, most of the force in the impact force of the foreign object on the bridge formwork still acts vertically on the bridge formwork, and the buffer effect is poor. Content of the Utility Model

[0005] The purpose of the utility model is to solve the problems existing in the prior art, and to propose a bridge formwork with a protection structure.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A bridge formwork with a protection structure, including a bridge formwork, a protection mechanism is arranged on one side of the bridge formwork, and the protection mechanism includes a buffer component and a force unloading component;

[0008] The buffer assembly includes a mounting plate installed on one side of the bridge formwork by bolts. An installation frame is provided on the side of the mounting plate away from the bridge formwork, and several groups of shock-absorbing arms are arranged between the mounting plate and the installation frame.

[0009] The force-relieving assembly includes a number of anti-collision cylinders arranged at intervals along the length direction of the installation frame. Rotating buffers are fixedly connected to both the upper and lower ends of the anti-collision cylinder.

[0010] Preferably, the installation frame includes two horizontally arranged plates with the same structure and parallel to each other. A number of struts are fixedly connected between the two horizontally arranged plates at intervals along the length direction of the horizontally arranged plates.

[0011] Preferably, the rotating buffer includes a cylinder body embedded and installed on the horizontally arranged plate. End caps are fixedly connected to both ends of the cylinder body. A sealing cavity is formed by enclosing the cylinder body and the two end caps. A plug is rotatably connected between the two end caps and is located in the sealing cavity. An elastic clay is filled in the sealing cavity. One end of the plug is fixedly connected with a connecting shaft passing through the sealing cap. The anti-collision cylinder is fixedly connected between two adjacent connecting shafts above and below.

[0012] Preferably, a number of blocking grooves are formed on the outer circumference of the plug, and the blocking grooves are in a fan-shaped structure.

[0013] Preferably, an elastic rubber pad is fixedly sleeved on the outer wall of the anti-collision cylinder.

[0014] Preferably, the shock-absorbing arm includes a rear arm and a front arm respectively fixedly connected between the mounting plate and the strut. A damper is fixedly installed on the inner teeth of the rear arm. A piston rod is arranged between one end of the damper and the front arm. A shock-absorbing spring sleeved outside the damper and the piston rod is fixedly connected between the rear arm and the front arm.

[0015] Preferably, an annular groove is formed on one side of the front arm. A buffer spring is fixedly connected in the annular groove. One end of the front arm away from the strut is inserted into the annular groove, and one end of the buffer spring is in contact with the front arm.

[0016] Preferably, the sum of the lengths of the front arm and the rear arm is greater than the sum of the lengths of the damper and the piston rod. When the damper, the piston rod and the shock-absorbing spring are in a certain state, one end of the front arm is located in the annular groove.

[0017] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0018] 1. In the present utility model, the anti-collision cylinder is used as the first line of defense, which can effectively disperse and buffer the direct collision between foreign objects and the bridge formwork, reduce the risk of frontal collision, and thus avoid the direct damage of the impact force to the bridge formwork.

[0019] 2. In the present utility model, the anti-collision cylinder drives the plug to rotate through the connecting shaft, and a damping effect is generated through rotation and extrusion, effectively absorbing and consuming the energy generated by the collision, and further reducing the impact of the collision on the bridge formwork.

[0020] 3. In the present utility model, through the combined buffering mechanism of the mounting bracket, front arm, damper and shock-absorbing spring, not only multi-level protection is provided for the bridge formwork, but also the impact force is effectively weakened through the interaction between components. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structural schematic diagram of a bridge formwork with a protection structure proposed by the present utility model;

[0022] Figure 2 is a partial cross-sectional three-dimensional structural schematic diagram of a bridge formwork with a protection structure proposed by the present utility model;

[0023] Figure 3 is a Figure 2 magnified structural schematic diagram of part A in a bridge formwork with a protection structure proposed by the present utility model;

[0024] Figure 4 is a Figure 2 magnified structural schematic diagram of part B in a bridge formwork with a protection structure proposed by the present utility model;

[0025] Figure 5 is an exploded structural schematic diagram of a bridge formwork with a protection structure proposed by the present utility model;

[0026] Figure 6 is a structural schematic diagram of the plug of a bridge formwork with a protection structure proposed by the present utility model.

[0027] LEGEND: 100, bridge formwork; 200, buffer assembly; 201, mounting plate; 202, mounting bracket; 2021, cross plate; 2022, support rod; 203, shock-absorbing arm; 2031, rear arm; 2032, front arm; 2033, damper; 2034, piston rod; 2035, shock-absorbing spring; 2036, annular groove; 2037, buffer spring; 3, load-relieving assembly; 301, anti-collision cylinder; 302, rotary buffer; 3021, cylinder block; 3022, end cap; 3023, sealing cavity; 3024, plug; 3025, connecting shaft; 3026, blocking groove; 303, elastic rubber pad. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to more clearly understand the above-mentioned objects, features, and advantages of the present utility model, the following further describes the present utility model in conjunction with the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0029] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0030] As Figure 1-6 shown, the present utility model provides a bridge formwork with a protection structure, including a bridge formwork 100. A protection mechanism is provided on one side of the bridge formwork 100. The protection mechanism includes a buffer assembly 200 and a force unloading assembly 3.

[0031] The buffer assembly 200 includes a mounting plate 201 installed on one side of the bridge formwork 100 by bolts. An installation frame 202 is provided on the side of the mounting plate 201 away from the bridge formwork 100. A number of shock-absorbing arms 203 are provided between the mounting plate 201 and the installation frame 202.

[0032] The force unloading assembly 3 includes a number of anti-collision cylinders 301 arranged at intervals along the length direction of the installation frame 202. Rotating buffers 302 are fixedly connected to both the upper and lower ends of the anti-collision cylinder 301.

[0033] Preferably, the installation frame 202 includes two identical and parallel horizontal plates 2021 arranged up and down. A number of struts 2022 arranged at intervals along the length direction of the horizontal plate 2021 are fixedly connected between the two horizontal plates 2021.

[0034] In this embodiment, the rotary buffer 302 includes a cylinder block 3021 embedded and installed on the cross plate 2021. Both ends of the cylinder block 3021 are fixedly connected with end caps 3022. The cylinder block 3021 and the two end caps 3022 enclose a sealed cavity 3023. A plug 3024 located in the sealed cavity 3023 is rotatably connected between the two end caps 3022. An elastic clay is filled in the sealed cavity 3023. One end of the plug 3024 is fixedly connected with a connecting shaft 3025 passing through the cover. The anti-collision cylinder 301 is fixedly connected between two adjacent connecting shafts 3025 up and down. A plurality of blocking grooves 3026 are formed in the outer ring of the plug 3024, and the blocking grooves 3026 are fan-shaped structures. When the anti-collision cylinder 301 rotates, it can drive the connecting shaft 3025 to rotate the plug 3024. The plug 3024 makes the blocking grooves 3026 push the elastic clay. The elastic clay is composed of polysiloxane, filler, compressive agent, plasticizer, etc. When the elastic clay moves under the action of external force, since the movement of the molecular segments and the whole molecular chain of polysiloxane has to overcome great resistance, extremely strong viscous friction force can be generated, so as to absorb the energy generated by the external force, and part of the energy is converted into heat energy, thereby consuming the external energy and reducing the amplitude of vibration, that is, the purpose of vibration reduction and buffering is achieved by generating a damping effect.

[0035] In this embodiment, an elastic rubber pad 303 is fixedly sleeved on the outer wall of the anti-collision cylinder 301; the elastic rubber pad 303 can initially play a protective role.

[0036] In this embodiment, the shock-absorbing arm 203 includes a rear arm 2031 and a front arm 2032 respectively fixedly connected between the mounting plate 201 and the support rod 2022. A damper 2033 is fixedly installed on the internal teeth of the rear arm 2031. A piston rod 2034 is arranged between one end of the damper 2033 and the front arm 2032. A shock-absorbing spring 2035 sleeved outside the damper 2033 and the piston rod 2034 is fixedly connected between the rear arm 2031 and the front arm 2032. An annular groove 2036 is formed on one side of the front arm 2032. A buffer spring 2037 is fixedly connected in the annular groove 2036. One end of the front arm 2032 away from the support rod 2022 is inserted into the annular groove 2036, and one end of the buffer spring 2037 is in contact with the front arm 2032; when an external force squeezes the front arm 2032, the front arm 2032 drives the piston rod 2034 to squeeze the damper 2033, and the shock-absorbing spring 2035 is also squeezed to buffer the impact force. During the movement of the front arm 2032, the buffer spring 2037 in the annular groove 2036 is squeezed to buffer the impact force.

[0037] In this embodiment, the sum of the lengths of the front arm 2032 and the rear arm 2031 is greater than the sum of the lengths of the damper 2033 and the piston rod 2034. When the damper 2033, the piston rod 2034, and the shock-absorbing spring 2035 are in a certain state, one end of the front arm 2032 is located in the annular groove 2036; in the natural state, the front arm 2032 and the rear arm 2031 enclose the damper 2033, the piston rod 2034, and the shock-absorbing spring 2035 to protect the buffer spring 2037 of the shock-absorbing spring 2035.

[0038] Usage method and working principle of this device:

[0039] First of all, when an external object collides with the bridge formwork 100, the external object first contacts the anti-collision barrel 301. The force generated by the collision will cause the anti-collision barrel to rotate. The rotating anti-collision barrel decomposes and buffers the collision of the external object, changes the moving trajectory of the external object, reduces the probability of a head-on collision between the external object and the bridge formwork 100, avoids the impact force acting vertically on the bridge formwork 100, provides effective protection, and improves the buffering effect;

[0040] When the anti-collision barrel 301 rotates, it can drive the connecting shaft 3025 to make the plug 3024 rotate. The plug 3024 makes the blocking groove 3026 push the elastic putty. When the elastic putty moves under the action of an external force, since the movement of the molecular chain segments and the entire molecular chain of polysiloxane has to overcome a great resistance, extremely strong viscous friction can be generated, thereby absorbing the energy generated by the external force and converting part of the energy into heat energy, thus consuming the external energy and reducing the amplitude of vibration, that is, achieving the purpose of vibration reduction and buffering through the generation of damping effect;

[0041] Secondly, in the above process, the force on the anti-collision barrel can also push the mounting bracket 202. The distance between the mounting bracket 202 and the mounting plate 201 is reduced, and then the front arm 2032 is squeezed, so that the front arm 2032 drives the piston rod 2034 to squeeze the damper 2033, and the shock-absorbing spring 2035 is also squeezed. During the movement of the front arm 2032, the buffer spring 2037 in the annular groove 2036 is squeezed to buffer the impact force, absorb and buffer the collision, effectively weaken the impact strength, and provide effective protection for the bridge formwork 100.

[0042] The above is only a preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical content of the technical solution of the present invention, any simple modification, equivalent change, and modification made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A bridge formwork with a protective structure, comprising a bridge formwork (100), characterized in that: A protection mechanism is provided on one side of the bridge formwork (100), and the protection mechanism comprises a buffer component (200) and a force unloading component (3); The buffer assembly (200) comprises a mounting plate (201) mounted on one side of the bridge formwork (100) by means of bolts, a mounting frame (202) is provided on the side of the mounting plate (201) away from the bridge formwork (100), and a plurality of groups of shock absorbing arms (203) are provided between the mounting plate (201) and the mounting frame (202); The force unloading assembly (3) comprises a plurality of anti-collision cylinders (301) arranged at intervals along the length direction of the mounting frame (202), and the upper and lower ends of the anti-collision cylinders (301) are fixedly connected to a rotating buffer (302).

2. The bridge formwork with a protective structure according to claim 1, characterized in that: The mounting frame (202) comprises two upper and lower transverse plates (2021) of identical structure and arranged in parallel, and a plurality of support rods (2022) arranged at intervals along the length direction of the transverse plates (2021) are fixedly connected between the two transverse plates (2021).

3. The bridge formwork with a protective structure according to claim 2, characterized in that: The rotary buffer (302) comprises a cylinder body (3021) embedded in a transverse plate (2021), both ends of the cylinder body (3021) are fixedly connected with end covers (3022), the cylinder body (3021) and the two end covers (3022) together form a sealed cavity (3023), a plug (3024) located in the sealed cavity (3023) is rotatably connected between the two end covers (3022), the sealed cavity (3023) is filled with elastic cement, one end of the plug (3024) is fixedly connected with a connecting shaft (3025) passing through the sealing cover, and the anti-collision cylinder (301) is fixedly connected between two upper and lower adjacent connecting shafts (3025).

4. The bridge formwork with a protective structure according to claim 3 is characterized in that: The outer ring of the cock (3024) is provided with a plurality of blocking grooves (3026), and the blocking grooves (3026) are fan-shaped structures.

5. The bridge formwork with a protective structure according to claim 1, characterized in that: An elastic rubber pad (303) is fixedly sleeved on the outer wall of the anti-collision cylinder (301).

6. The bridge formwork with a protective structure according to claim 2, characterized in that: The shock absorbing arm (203) comprises a rear arm (2031) and a front arm (2032) respectively fixedly connected between the mounting plate (201) and the support rod (2022); a damper (2033) is fixedly mounted on the inner teeth of the rear arm (2031); a piston rod (2034) is arranged between one end of the damper (2033) and the front arm (2032); and a shock absorbing spring (2035) sleeved on the outside of the damper (2033) and the piston rod (2034) is fixedly connected between the rear arm (2031) and the front arm (2032).

7. The bridge formwork with a protective structure according to claim 6, characterized in that: An annular groove (2036) is provided on one side of the forearm (2032), a buffer spring (2037) is fixedly connected in the annular groove (2036), one end of the forearm (2032) away from the support rod (2022) is inserted into the annular groove (2036), and one end of the buffer spring (2037) is in low contact with the forearm (2032).

8. The bridge formwork with a protective structure according to claim 7, characterized in that: The sum of the lengths of the front arm (2032) and the rear arm (2031) is greater than the sum of the lengths of the damper (2033) and the piston rod (2034); when the damper (2033), the piston rod (2034) and the shock absorbing spring (2035) are in a state, one end of the front arm (2032) is located in the annular groove (2036).

Images