Underground open caisson for municipal engineering

Abstract

The utility model discloses an underground open caisson for municipal engineering, which belongs to the technical field of municipal engineering and comprises a shaft and a reinforcing component, a plurality of positioning grooves are arranged at the top of the shaft, a plurality of positioning columns matched with the positioning grooves are fixedly connected to the bottom of the shaft, and a cavity is arranged on one side of the shaft positioned on the positioning grooves. The reinforcing assembly is arranged in the cavity and comprises a movable plate, a guide block, a reinforcing rod and a spring, the movable plate is slidably mounted in the cavity, the guide block and the reinforcing rod are fixedly connected to the two sides of the movable plate respectively, the guide block slidably penetrates into the positioning groove, and the reinforcing rod slidably penetrates into the outer side wall of the shaft. The spring is fixedly connected to the end, close to the reinforcing rod, of the movable plate. By arranging the reinforcing assemblies, after the positioning columns are inserted into the positioning grooves, the shaft and the inner wall of the well hole can be connected and reinforced, the stability of the shaft is improved, and the situation that the shaft is prone to deviation during pouring is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of municipal engineering, and particularly relates to an underground open caisson for municipal engineering. Background Technique

[0002] An open caisson is a wellbore-shaped structure. It excavates soil in the well, relies on its own gravity to overcome the frictional resistance of the well wall and then sinks to the designed elevation, and then seals the bottom and fills the well holes to make it the foundation of a bridge pier or other structures. Generally, it is used in the construction of large bridge pier foundations, sewage pumping stations, large equipment foundations, air defense shelters, shield assembly wells, and the construction of retaining devices for underground lanes and stations' hydraulic foundations. At present, when operating at the bottom end of an open caisson, it is necessary to protect the side wall of the open caisson through plate members to facilitate subsequent concrete bottom sealing and wall sealing.

[0003] The existing Chinese patent with the publication number CN219196019U discloses an underground open caisson for municipal engineering, which includes a plurality of support components spliced together from top to bottom; the support component includes a support cylinder, and a plurality of positioning keys are arranged in a circular array at the bottom end of the support cylinder, and a plurality of positioning grooves adapted to the positioning keys are arranged in a circular array at the top end of the support cylinder; a rubber sealing gasket for improving the sealing performance is clamped between the two support cylinders, and a plurality of through grooves for the positioning keys to pass through are arranged in a circular array at the top end of the rubber sealing gasket.

[0004] In view of the above related technologies, the inventor found that at least the following problems exist in this technology: Although the above technology can connect and reinforce a plurality of support cylinders, the support cylinders are still prone to shift in the well holes during pouring, and the stability is not high. Content of the Utility Model

[0005] The purpose of the utility model is to provide an underground open caisson for municipal engineering to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: An underground open caisson for municipal engineering includes a shaft and a reinforcement component. A plurality of positioning grooves are opened at the top of the shaft, a plurality of positioning columns adapted to the positioning grooves are fixedly connected to the bottom of the shaft, a cavity is opened on one side of the shaft where the positioning grooves are located, and the reinforcement component is arranged in the cavity;

[0007] The reinforcement component includes a movable plate, a guiding block, a reinforcing rod and a spring. The movable plate is slidably installed in the cavity. The guiding block and the reinforcing rod are respectively fixedly connected to both sides of the movable plate. The guiding block slides through to the positioning groove, the reinforcing rod slides through to the outer side wall of the shaft, and the spring is fixedly connected to one end of the movable plate close to the reinforcing rod.

[0008] As a preferred embodiment, a sealing gasket is abutted between adjacent said wellbores, and the sealing gasket is a rubber ring.

[0009] As a preferred embodiment, a first perforation communicating with the positioning groove is provided inside the wellbore.

[0010] As a preferred embodiment, a second perforation adapted to the first perforation is provided inside the positioning post.

[0011] As a preferred embodiment, an inclined angle is provided on the side of the guiding block away from the movable plate, and the inclined angle is arranged obliquely towards the opening direction of the positioning groove.

[0012] As a preferred embodiment, a plurality of annularly distributed through holes are provided on the outer circumference of the wellbore, and the reinforcing rods are inserted into the through holes.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] For the open caisson of the municipal engineering, by providing a reinforcement assembly, after the positioning post is inserted into the positioning groove, the positioning post will squeeze the inclined angle of the guiding block, causing the guiding block to slide towards the cavity under force. The guiding block drives the reinforcing rod to extend out of the wellbore through the movable plate, so that the reinforcing rod is inserted into the soil layer on the inner wall of the well hole, connecting and reinforcing the wellbore and the inner wall of the well hole, improving the stability of the wellbore, and reducing the situation that the wellbore is prone to deviation during pouring;

[0015] For the open caisson of the municipal engineering, by providing the first perforation and the second perforation, after the wellbore is completely sunk, steel bars can be inserted along the first perforation and the second perforation to connect all the wellbores, improving the overall stability of the wellbores. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall structural schematic diagram of the present utility model;

[0017] Figure 2 is the sectional structural schematic diagram of the present utility model;

[0018] Figure 3 is the present utility model Figure 2 The enlarged view of the structure at A in.

[0019] In the figure: 1, wellbore; 11, positioning groove; 12, positioning post; 13, cavity; 14, sealing gasket; 15, first perforation; 16, second perforation; 17, through hole; 2, reinforcement assembly; 21, movable plate; 22, guiding block; 23, reinforcing rod; 24, spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following further describes the present utility model in conjunction with embodiments.

[0021] The following embodiments are used to illustrate the present utility model, but cannot be used to limit the protection scope of the present utility model. The conditions in the embodiments can be further adjusted according to specific conditions. Under the premise of the concept of the present utility model, simple improvements to the method of the present utility model all belong to the scope of protection required by the present utility model.

[0022] Please refer to Figures 1-3 , the present utility model provides an underground caisson for municipal engineering, including a wellbore 1 and a reinforcement assembly 2. A plurality of positioning grooves 11 are opened at the top of the wellbore 1, and a plurality of positioning columns 12 adapted to the positioning grooves 11 are fixedly connected to the bottom of the wellbore 1. Through the arrangement of the positioning grooves 11 and the positioning columns 12, the positioning columns 12 of the upper wellbore 1 can be inserted into the positioning grooves 11 of the lower wellbore 1 to connect and position adjacent wellbores 1; a sealing gasket 14 is abutted between adjacent wellbores 1. The sealing gasket 14 is a rubber ring. By setting the sealing gasket 14, the sealing performance between adjacent wellbores 1 can be improved.

[0023] Refer to Figure 1 and Figure 3 , a cavity 13 is opened on one side of the wellbore 1 at the positioning groove 11, and the reinforcement assembly 2 is arranged in the cavity 13. The reinforcement assembly 2 includes a movable plate 21, a guide block 22, a reinforcement rod 23 and a spring 24. The movable plate 21 is slidably installed in the cavity 13. The guide block 22 and the reinforcement rod 23 are respectively fixedly connected to both sides of the movable plate 21. The guide block 22 slidably penetrates into the positioning groove 11. An inclined angle is provided on the side of the guide block 22 away from the movable plate 21, and the inclined angle is arranged to incline towards the opening direction of the positioning groove 11. A plurality of annularly distributed through holes 17 are opened on the outer circumference of the wellbore 1, and the reinforcement rod 23 is inserted through the through holes 17. The spring 24 is fixedly connected to one end of the movable plate 21 close to the reinforcement rod 23. By setting the reinforcement assembly 2, when the positioning column 12 is inserted into the positioning groove 11, the positioning column 12 will squeeze the inclined angle of the guide block 22, causing the guide block 22 to slide towards the inside of the cavity 13 under force. The guide block 22 drives the reinforcement rod 23 to extend out of the wellbore 1 through the movable plate 21, so that the reinforcement rod 23 is inserted into the soil layer on the inner wall of the well hole, connecting and reinforcing the wellbore 1 with the inner wall of the well hole, improving the stability of the wellbore 1, and reducing the situation that the wellbore 1 is prone to deviation during pouring.

[0024] Refer to Figure 2 , a first through hole 15 communicating with the positioning groove 11 is opened inside the wellbore 1, and a second through hole 16 adapted to the first through hole 15 is opened inside the positioning column 12. By setting the first through hole 15 and the second through hole 16, after all the wellbores 1 are sunk, steel bars can be inserted along the first through hole 15 and the second through hole 16 to connect all the wellbores 1, improving the overall stability of the wellbores 1.

[0025] Working principle and usage process of the present utility model: First, through the settings of the positioning groove 11 and the positioning post 12, the positioning post 12 of the upper wellbore 1 can be inserted into the positioning groove 11 of the lower wellbore 1 to connect and position adjacent wellbores 1. By setting the reinforcement assembly 2, when the positioning post 12 is inserted into the positioning groove 11, the positioning post 12 will squeeze the bevel of the guide block 22, causing the guide block 22 to slide towards the cavity 13 under force. The guide block 22 drives the reinforcement rod 23 to extend out of the wellbore 1 through the movable plate 21, so that the reinforcement rod 23 is inserted into the soil layer on the inner wall of the well hole, connecting and reinforcing the wellbore 1 with the inner wall of the well hole, improving the stability of the wellbore 1 and reducing the situation that the wellbore 1 is prone to deviation during pouring.

[0026] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An underground caisson for municipal engineering, comprising a shaft (1) and a reinforcement assembly (2), characterized in that: The top of the wellbore (1) is provided with a plurality of positioning grooves (11), the bottom of the wellbore (1) is fixedly connected with a plurality of positioning columns (12) adapted to the positioning grooves (11), the wellbore (1) is provided with a cavity (13) on one side of the positioning grooves (11), and the reinforcement component (2) is arranged in the cavity (13); The reinforcement assembly (2) comprises a movable plate (21), a guide block (22), a reinforcement rod (23) and a spring (24); the movable plate (21) is slidably mounted in the cavity (13); the guide block (22) and the reinforcement rod (23) are respectively fixedly connected to two sides of the movable plate (21); the guide block (22) slides through the positioning groove (11); the reinforcement rod (23) slides through the outer wall of the wellbore (1); and the spring (24) is fixedly connected to one end of the movable plate (21) close to the reinforcement rod (23).

2. The underground caisson for municipal engineering according to claim 1, characterized in that: A sealing gasket (14) is abutted between adjacent wellbores (1), and the sealing gasket (14) is a rubber ring.

3. The underground caisson for municipal engineering according to claim 1, characterized in that: The wellbore (1) is provided with a first through hole (15) in communication with the positioning groove (11).

4. The underground caisson for municipal engineering according to claim 3, characterized in that: The interior of the positioning column (12) is provided with a second through hole (16) which matches the first through hole (15).

5. The underground caisson for municipal engineering according to claim 1, characterized in that: A bevel is provided on one side of the guide block (22) away from the movable plate (21), and the bevel is arranged obliquely toward the opening direction of the positioning groove (11).

6. The underground caisson for municipal engineering according to claim 1, characterized in that: A plurality of through holes (17) distributed in an annular pattern are provided on the outer circumference of the wellbore (1), and the reinforcement rods (23) are inserted into the through holes (17).

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