A cast-in-place utility tunnel wall formwork bracing device

Abstract

The utility model discloses a cast-in-place comprehensive pipe gallery wall formwork jacking device relates to comprehensive pipe gallery technical field, including side mould, and the side mould one side is in abutment with the pouring formwork and fixes the formwork, and the other side fixed connection of side mould has the sleeve pipe, and the sleeve pipe is used for transmitting load, and the sleeve pipe detachably connected has the adjusting assembly, and adjusting assembly can adapt the pipe gallery of different diameter, and the one end of adjusting assembly is away from the sleeve pipe and is in abututment with the enclosure wall. The utility model is convenient for processing and manufacturing, and the structural strength stiffness is reliable, and makes the side mould 6 with pouring formwork simultaneously effective fixed, will not fall off failure in the construction process by formwork vibration, deformation and other reasons, and the end of adjusting assembly is in abutment on the foundation pit enclosure wall, makes the whole more reliable firm, and the whole jacking device surface has no other opening, and the integrity is good, and the stress is stable.

Description

Technical Field

[0001] This utility model relates to the field of integrated utility tunnel technology, and in particular to a formwork support device for cast-in-place integrated utility tunnel walls. Background Technology

[0002] Integrated utility tunnels are underground urban pipeline corridors. Their height is typically between 3-3.2 meters, and the excavation depth is usually greater than 5 meters, classifying them as deep pits. Construction typically requires the installation of vertical rigid retaining walls during excavation. During the pouring process, formwork is first used to define the inner wall position of the tunnel, and then concrete is poured to construct it. Current technology typically uses tie bolts and other fastening devices to fix the cast-in-place formwork, resulting in numerous bolt holes in the structure and significantly increasing the possibility of water leakage.

[0003] Existing technology discloses a formwork fixing device for cast-in-place pipe gallery (application number 202322412648.7), which includes a positioning shaft that passes through one end of a connector and an abutment plate that abuts against the formwork at the other end. Both ends of the positioning shaft pass through through grooves, and the fixing plate has multiple limiting holes located on the outer ends of the through grooves, allowing limiting components at both ends of the positioning shaft to enter the limiting holes and form a limiting structure. However, in the aforementioned prior art, the abutment plate that abuts against the formwork is not effectively fixed to the formwork and may fall off and fail during construction due to formwork vibration or deformation. Furthermore, the structure is complex, requiring numerous adjustment and fixing points, making operation inconvenient in actual construction. The precision of processing is difficult to guarantee, and the numerous openings in the structure significantly reduce the strength and durability of the device.

[0004] Therefore, this utility model provides a formwork support device for cast-in-place integrated pipe gallery walls to solve the problems existing in the prior art. Utility Model Content

[0005] To achieve the above objectives, this utility model provides the following solution: This utility model provides a formwork support device for cast-in-place integrated pipe gallery walls, including a side formwork. One side of the side formwork abuts against the cast-in-place template and fixes the template. A sleeve is fixedly connected to the other side of the side formwork. The sleeve is used to transmit loads. An adjustment component is detachably connected to the sleeve. The adjustment component can be adapted to pipe galleries of different diameters. The end of the adjustment component away from the sleeve abuts against the retaining wall.

[0006] Optionally, the adjusting component includes a pin tube, one end of which is detachably connected to the sleeve, and the other end of which is fitted with a lead screw that can move along the pin tube. The end of the lead screw away from the pin tube is fixedly connected to an abutment plate that abuts against the enclosure wall.

[0007] Optionally, the pin tube is L-shaped.

[0008] Optionally, the top of the sleeve is partially open, and the top of the sleeve is adapted to the L-shaped pin tube.

[0009] Optionally, an adjusting nut is threaded onto the outer side of the lead screw, and the adjusting nut is rotatably connected to the end of the pin tube. The adjusting nut is used to adjust the length of the lead screw extension.

[0010] Optionally, a limiting groove is provided inside the pin tube, which is used to limit the rotation of the lead screw so that it can only move horizontally along the pin tube.

[0011] This utility model discloses the following technical effects: Before construction, the adjustment components are pre-assembled into a whole, and the side formwork with sleeves is fixed to the formwork. During construction, the adjustment components are directly inserted into the sleeves, and the extension or shortening of the adjustment components makes them abut against the vertical rigid retaining wall. During disassembly, the adjustment components can be easily disassembled by shortening them. This utility model is convenient to process and manufacture, has reliable structural strength and rigidity, and effectively fixes the side formwork to the casting formwork, preventing it from falling off or failing due to formwork vibration or deformation during construction. The end of the adjustment component abuts against the retaining wall of the foundation pit, making the whole more reliable and solid. Furthermore, the entire top support device has no other openings on its surface, has good integrity, and is stable under stress. Attached Figure Description

[0012] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] In the diagram: 1. Contact plate; 2. Lead screw; 3. Adjusting nut; 4. Pin tube; 5. Sleeve; 6. Side mold. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] Reference Figure 1As shown, this embodiment provides a formwork support device for cast-in-place integrated pipe gallery walls, including a side formwork 6. One side of the side formwork 6 abuts against the cast-in-place formwork and fixes the formwork. The other side of the side formwork 6 is fixedly connected to a sleeve 5, which is used to transmit loads. The sleeve 5 is detachably connected to an adjustment component, which can be adapted to pipe galleries of different diameters. The end of the adjustment component away from the sleeve 5 abuts against the retaining wall.

[0018] Before construction, the adjustment components are pre-assembled into a whole, and the side formwork 6 with sleeve 5 is fixed to the formwork. During construction, the adjustment components are directly inserted into the sleeve 5, and the extension or shortening of the adjustment components is used to make them abut against the vertical rigid retaining wall. During disassembly, the adjustment components can be shortened to easily complete the disassembly. This utility model is convenient to process and manufacture, has reliable structural strength and rigidity, and effectively fixes the side formwork 6 to the pouring formwork, preventing it from falling off or failing due to formwork vibration or deformation during construction. The end of the adjustment component abuts against the retaining wall of the foundation pit, making the whole more reliable and firm. Furthermore, the entire top support device has no other openings on its surface, has good integrity, and is stable under stress.

[0019] Furthermore, the sleeve 5 is welded and fixed to the side formwork 6. This prefabrication reduces the number of operation steps during construction and also ensures that the top support device will not fall off or fail due to formwork vibration or deformation during construction once it is formed as a whole.

[0020] Further refining the design, the adjustment component includes a pin tube 4, one end of which is detachably connected to a sleeve 5. A lead screw 2 is fitted onto the other end of the pin tube 4, allowing it to move along the pin tube 4. An abutment plate 1 is fixedly connected to the end of the lead screw 2 furthest from the pin tube 4, and the abutment plate 1 abuts against the enclosure wall. The length can be adjusted by moving the lead screw 2 within the pin tube 4, ensuring that the abutment plate 1 contacts and is fixed to the enclosure wall, thus guaranteeing the stability of the overall structure.

[0021] Further refining the design, the plug tube 4 is L-shaped. The L-shaped plug tube 4 facilitates installation and disassembly with the sleeve 5, improving operational convenience.

[0022] The design is further refined by creating a half-open top for the sleeve 5, which is then fitted with an L-shaped pin 4. This half-open top allows for better load transfer after the L-shaped pin 4 is inserted into the sleeve 5.

[0023] Further refining the design, an adjusting nut 3 is threaded onto the outer side of the lead screw 2. The adjusting nut 3 is rotatably connected to the end of the pin tube 4. The adjusting nut 3 is used to adjust the extension length of the lead screw 2. Rotating the adjusting nut 3 can adjust the extension length of the lead screw 2, thereby adapting to integrated pipe racks of different diameters.

[0024] The design is further refined by incorporating a limiting groove within the pin tube 4. This groove restricts the rotation of the lead screw 2, allowing it to move horizontally only along the pin tube 4. The limiting groove ensures stable movement of the lead screw 2 during transmission and smoother adjustment.

[0025] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A formwork support device for cast-in-place integrated utility tunnel walls, characterized in that: Includes a side formwork (6), one side of which abuts against the casting template and fixes the template, and the other side of which is fixedly connected to a sleeve (5), which is used to transmit loads. The sleeve (5) is detachably connected to an adjustment component, which can be adapted to pipe racks of different diameters. The end of the adjustment component away from the sleeve (5) abuts against the retaining wall.

2. The formwork support device for cast-in-place integrated utility tunnel walls according to claim 1, characterized in that: The adjustment assembly includes a pin tube (4), one end of which is detachably connected to the sleeve (5), and the other end of which is fitted with a lead screw (2). The lead screw (2) can move along the pin tube (4), and the end of the lead screw (2) away from the pin tube (4) is fixedly connected to an abutment plate (1), which abuts against the enclosure wall.

3. The formwork support device for cast-in-place integrated utility tunnel walls according to claim 2, characterized in that: The pin tube (4) is L-shaped.

4. The formwork support device for cast-in-place integrated utility tunnel walls according to claim 3, characterized in that: The top of the sleeve (5) is partially open, and the top of the sleeve (5) is adapted to the L-shaped pin tube (4).

5. The formwork support device for cast-in-place integrated utility tunnel walls according to claim 2, characterized in that: The lead screw (2) is threaded with an adjusting nut (3) on its outer side. The adjusting nut (3) is rotatably connected to the end of the pin tube (4). The adjusting nut (3) is used to adjust the length of the lead screw (2) extending outward.

6. The formwork support device for cast-in-place integrated utility tunnel walls according to claim 2, characterized in that: A limiting groove is provided inside the pin tube (4). The limiting groove is used to restrict the rotation of the lead screw (2) so that it can only move horizontally along the pin tube (4).

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