Cofferdam device for highway bridge construction

Abstract

The utility model relates to the technical field of highway bridge construction, and discloses a highway bridge construction cofferdam device which comprises a cofferdam body and a support, annular guide rails are installed at the top and the bottom of the outer side of the support, a second flow guide frame is installed on the outer sides of the annular guide rails, and a buffering assembly is installed on the front face of the second flow guide frame. A first flow guide frame is installed on the front face of the buffer assembly, a fixing assembly is installed on the top of the back face of a second flow guide frame, and water flow is subjected to resistance when flowing through the first flow guide frame, so that the speed of the water flow is reduced, impact force of the water flow on the cofferdam body can be reduced, and pressure on the outer side of the cofferdam body is reduced. And through the design of inclined planes of the first flow guide frame and the second flow guide frame, the water flow energy and the water flow direction can be dispersed, the pressure borne by the support and the cofferdam body is reduced, and when the first flow guide frame is subjected to water flow impact force, the buffer springs are compressed, the buffer effect can be achieved, and impact force transmission is weakened.

Description

Technical Field

[0001] The utility model relates to the technical field of highway bridge construction, and more specifically to a highway bridge construction cofferdam device. Background Art

[0002] Highway bridges refer to buildings that cross waters, valleys and all traffic routes. In order to make traffic more smooth in prosperous urban areas, more elevated highways are usually built to alleviate the traffic pressure on the ground. Highway bridge construction includes planning, design, construction, maintenance, and repair. When building highway bridges in lake water, in order to ensure the progress of the construction project, it is necessary to use a cofferdam to enclose the construction site in the early stage, and backflow the water inside the cofferdam, and then carry out construction inside it.

[0003] In order to increase the structural strength of the cofferdam device, a supporting structure is generally set up inside the cofferdam to prevent the external water pressure from squeezing and collapsing the cofferdam. However, when building cofferdams in some rivers with fast water flow, the water flow path will generate greater pressure on one side of the outside of the cofferdam device, and the water flow speed will also change continuously, which can easily cause the cofferdam device to shake, making the cofferdam structure prone to deformation or even fracture, posing a safety hazard. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a highway bridge construction cofferdam device to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solutions: a highway bridge construction cofferdam device, comprising a cofferdam body and a bracket, annular guide rails are installed on the top and bottom of the outer side of the bracket, a second guide frame is installed on the outer side of the annular guide rail, a buffer assembly is installed on the front side of the second guide frame, a first guide frame is installed on the front side of the buffer assembly, a fixing assembly is installed on the top of the back side of the second guide frame, connecting frames are fixedly connected to both sides of the back side of the second guide frame, and a limiting frame is fixedly connected to the back side of the connecting frame.

[0006] Furthermore, the top and bottom of the bracket away from the surface of the cofferdam body are fixedly connected with a fixing plate, the surface of the fixing plate is provided with bolt holes, and the annular guide rail is fixedly connected to the inner side of the fixing plate by bolts.

[0007] Furthermore, annular grooves are provided around the outer side of the annular guide rail, a limiting groove is provided inside the annular groove, and a cylindrical groove is provided around the top of the annular guide rail.

[0008] Furthermore, the fixing assembly includes a support plate, the top of the support plate is movably sleeved with a cylindrical rod, the top of the cylindrical rod is fixedly connected to a connecting plate, the bottom of the outer side of the cylindrical rod is fixedly sleeved with a stop block, the outer side of the cylindrical rod is provided with a pressure spring, and the pressure spring is located between the support plate and the stop block.

[0009] Furthermore, the buffer assembly includes a fixed tube fixedly connected to the front side of the second guide frame, a buffer spring fixedly connected to the inner side of the fixed tube, one end of the buffer spring fixedly connected to a fixed rod, the fixed rod is movably sleeved with the fixed tube, and the front side of the fixed rod is fixedly connected to the back side of the first guide frame.

[0010] Technical effects and advantages of the utility model:

[0011] 1. The utility model is provided with a first guide frame, a second guide frame and a buffer assembly. When water flows through the first guide frame, it will encounter resistance, thereby slowing down the speed of the water flow, reducing the impact force of the water flow on the cofferdam body, and reducing the pressure on the outside of the cofferdam body. The design of the inclined surfaces of the first guide frame and the second guide frame can disperse the energy and direction of the water flow, reduce the pressure on the bracket and the cofferdam body, and when the first guide frame is subjected to the impact force of the water flow, the buffer spring is compressed, which can play a buffering role and weaken the transmission of the impact force.

[0012] 2. The utility model is provided with a second guide frame and a fixing assembly, so that the second guide frame can move along the outer side of the annular guide rail, so that the direction of the second guide frame can be adjusted according to the direction of the water flow, and under the elastic force of the pressure spring, the cylindrical rod is stably inserted into the inner side of the cylindrical groove, thereby fixing the position of the second guide frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 This is a schematic diagram of the support structure of the utility model.

[0015] Figure 3 It is a schematic diagram of the annular guide rail structure of the utility model.

[0016] Figure 4 It is a schematic diagram of the second guide frame structure of the utility model.

[0017] Figure 5 It is a schematic diagram of the structure of the fixing component of the utility model.

[0018] Figure 6 This is a schematic diagram of the structure of the buffer component of the utility model.

[0019] The accompanying drawings are marked as follows: 1. cofferdam body; 2. bracket; 201. fixing plate; 202. bolt hole; 3. annular guide rail; 301. annular groove; 302. limiting groove; 303. cylindrical groove; 4. second guide frame; 401. connecting frame; 402. limiting frame; 5. buffer assembly; 501. fixing pipe; 502. buffer spring; 503. fixing rod; 6. first guide frame; 7. fixing assembly; 701. support plate; 702. cylindrical rod; 703. connecting plate; 704. block; 705. pressure spring. DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the utility model. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The highway bridge construction cofferdam device involved in the utility model is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0021] Reference Figure 1-Figure 6 The utility model provides a highway bridge construction cofferdam device, including a cofferdam body 1 and a bracket 2. Annular guide rails 3 are installed on the top and bottom of the outer side of the bracket 2. A second guide frame 4 is installed on the outer side of the annular guide rail 3. A buffer component 5 is installed on the front of the second guide frame 4. A first guide frame 6 is installed on the front of the buffer component 5. A fixing component 7 is installed on the top of the back of the second guide frame 4. Both sides of the back of the second guide frame 4 are fixedly connected with connecting frames 401. The back of the connecting frame 401 is fixedly connected with a limited position frame 402.

[0022] In the embodiment of the present application, the second guide frame 4 can move along the outer side of the annular guide rail 3, so that the direction of the second guide frame 4 can be adjusted according to the direction of the water flow. When the water flows through the first guide frame 6, it will encounter resistance, thereby slowing down the speed of the water flow, which can reduce the impact force of the water flow on the cofferdam body 1 and reduce the pressure on the outside of the cofferdam body 1. The design of the inclined surfaces of the first guide frame 6 and the second guide frame 4 can disperse the water flow energy and the direction of the water flow, reduce the pressure on the bracket 2 and the cofferdam body 1, and when the first guide frame 6 is subjected to the impact force of the water flow, the buffer spring 502 is compressed, which can play a buffering role and weaken the transmission of the impact force.

[0023] In a preferred embodiment, the bracket 2 is fixedly connected to a fixing plate 201 at the top and bottom away from the surface of the cofferdam body 1, and bolt holes 202 are provided on the surface of the fixing plate 201. The annular guide rail 3 is fixedly connected to the inner side of the fixing plate 201 by bolts. The bracket 2 is distributed in a circular array around the outer side of the cofferdam body 1, and annular grooves 301 are provided around the outer side of the annular guide rail 3, and limiting grooves 302 are provided on the inner side of the annular groove 301. Cylindrical grooves 303 are provided around the top of the top annular guide rail 3, and the annular grooves 301 are adapted to each other with the connecting frame 401, and the limiting grooves 302 are adapted to each other with the limiting frame 402.

[0024] In a preferred embodiment, the fixing assembly 7 includes a support plate 701, the top of the support plate 701 is movably sleeved with a cylindrical rod 702, the top of the cylindrical rod 702 is fixedly connected with a connecting plate 703, the bottom of the outer side of the cylindrical rod 702 is fixedly sleeved with a stop block 704, a pressure spring 705 is provided on the outer side of the cylindrical rod 702, the pressure spring 705 is located between the support plate 701 and the stop block 704, and the edge of the bottom of the cylindrical rod 702 is provided with an oblique chamfer to facilitate the insertion of the cylindrical rod 702 into the inner side of the cylindrical groove 303. Under the elastic force of the pressure spring 705, the cylindrical rod 702 is stably inserted into the inner side of the cylindrical groove 303, thereby fixing the position of the second guide frame 4.

[0025] In a preferred embodiment, the buffer assembly 5 includes a fixed tube 501 fixedly connected to the front side of the second guide frame 4, a buffer spring 502 is fixedly connected to the inner side of the fixed tube 501, one end of the buffer spring 502 is fixedly connected to a fixed rod 503, the fixed rod 503 is movably connected to the fixed tube 501, the front side of the fixed rod 503 is fixedly connected to the back side of the first guide frame 6, the buffer spring 502 can play a buffering role, the first guide frame 6 is displaced when impacted by water flow, the buffer spring 502 is compressed, and the impact force of the water flow is converted into the kinetic energy of the first guide frame 6 and the elastic potential energy of the buffer spring 502.

[0026] The working principle of the utility model is as follows: the second guide frame 4 can move along the outer side of the annular guide rail 3, so that the direction of the second guide frame 4 can be adjusted according to the direction of the water flow. When the water flows through the first guide frame 6, it will encounter resistance, thereby slowing down the speed of the water flow, which can reduce the impact force of the water flow on the cofferdam body 1 and the pressure on the outer side of the cofferdam body 1. The design of the inclined surfaces of the first guide frame 6 and the second guide frame 4 can disperse the water flow energy and the direction of the water flow, reduce the pressure on the bracket 2 and the cofferdam body 1, and when the first guide frame 6 is subjected to the impact force of the water flow, the buffer spring 502 is compressed, which can play a buffering role and weaken the transmission of the impact force.

[0027] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0028] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0029] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A highway bridge construction cofferdam device, comprising a cofferdam body (1) and a bracket (2), characterized in that: An annular guide rail (3) is installed at the top and bottom of the outer side of the bracket (2); a second guide frame (4) is installed at the outer side of the annular guide rail (3); a buffer component (5) is installed at the front of the second guide frame (4); a first guide frame (6) is installed at the front of the buffer component (5); a fixing component (7) is installed at the top of the back of the second guide frame (4); both sides of the back of the second guide frame (4) are fixedly connected to a connecting frame (401); and the back of the connecting frame (401) is fixedly connected to a limiting frame (402); The outer side of the annular guide rail (3) is provided with annular grooves (301) all around, the inner side of the annular groove (301) is provided with a limiting groove (302), and the top of the annular guide rail (3) is provided with a cylindrical groove (303) all around.

2. A highway bridge construction cofferdam device according to claim 1, characterized in that: The top and bottom of the bracket (2) away from the surface of the cofferdam body (1) are fixedly connected to a fixing plate (201), the surface of the fixing plate (201) is provided with bolt holes (202), and the annular guide rail (3) is fixedly connected to the inner side of the fixing plate (201) by bolts.

3. A highway bridge construction cofferdam device according to claim 1, characterized in that: The fixing assembly (7) comprises a support plate (701), the top of the support plate (701) is movably sleeved with a cylindrical rod (702), the top of the cylindrical rod (702) is fixedly connected with a connecting plate (703), the bottom of the outer side of the cylindrical rod (702) is fixedly sleeved with a stopper (704), the outer side of the cylindrical rod (702) is provided with a pressure spring (705), and the pressure spring (705) is located between the support plate (701) and the stopper (704).

4. A highway bridge construction cofferdam device according to claim 1, characterized in that: The buffer assembly (5) comprises a fixed tube (501) fixedly connected to the front side of the second guide frame (4); a buffer spring (502) is fixedly connected to the inner side of the fixed tube (501); one end of the buffer spring (502) is fixedly connected to a fixed rod (503); the fixed rod (503) is movably sleeved with the fixed tube (501); and the front side of the fixed rod (503) is fixedly connected to the back side of the first guide frame (6).

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