Fabricated tunnel embedded component positioning device

Abstract

The utility model discloses an assembly type tunnel embedded component positioning device, and belongs to the technical field of assembly type tunnels. Comprising symmetrically-arranged mounting plates, each mounting plate is provided with at least one positioning assembly, each positioning assembly comprises symmetrically-arranged screw rods, the two ends of each screw rod are connected to the corresponding mounting plate, a plurality of positioning rings are arranged between the two screw rods, sliding blocks are symmetrically arranged on the positioning rings, one end of each sliding block is fixed to the corresponding positioning ring, and the other end of each sliding block is fixed to the corresponding positioning ring. The other end of the sliding block is connected to the threaded rod in a sliding mode, a first threaded sleeve and a second threaded sleeve are arranged on the two sides of the sliding block respectively, and the first threaded sleeve and the second threaded sleeve are both in threaded connection to the threaded rod and used for locking and limiting the position of the sliding block. According to the technical scheme, the problem that in the prior art, when constructors locate the arrangement positions of embedded steel bars and connecting holes, measurement operation needs to be conducted many times, and the production efficiency of prefabricated parts is affected is solved.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated tunnel technology, specifically to a positioning device for prefabricated tunnel embedded components. Background Technology

[0002] Prefabricated tunnels are a new type of tunnel construction technology. Their core lies in breaking down the tunnel structure into several standardized components, prefabricating them in a factory, and then transporting them to the construction site for assembly to form the tunnel structure. During prefabrication, embedded parts need to be installed within the prefabricated components to facilitate the later installation and connection of these components.

[0003] like Figure 4 As shown, embedded reinforcing bars need to be installed at the end of the first precast component (invert arch), and pre-set connection holes need to be installed on the second precast component (lining). During later assembly, the embedded reinforcing bars are placed in the connection holes, and then grouting is performed to securely connect the first and second precast components. That is, whether the positions of the embedded reinforcing bars on the first precast component and the connection holes on the second precast component correspond and match significantly affects the assembly effect. Therefore, during precast component manufacturing, it is necessary to accurately position the embedded reinforcing bars and the pre-set positions of the positioning holes. In existing technologies, workers typically use calipers and other tools to individually position and mark the embedded reinforcing bars and positioning holes to ensure their pre-set effect. However, this method requires multiple measurements, affecting the production efficiency of the components. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a positioning device for prefabricated tunnel embedded components, so as to solve the problem that construction workers need to perform multiple measurement operations when positioning the embedded steel bars and connecting holes, which affects the production efficiency of prefabricated components.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model discloses a prefabricated tunnel embedded component positioning device, comprising symmetrically arranged mounting plates. At least one set of positioning components is provided on the mounting plates. Each positioning component includes symmetrically arranged screws, with both ends of the screws connected to the mounting plates. Several positioning rings are provided between the two screws. Sliding blocks are symmetrically arranged on each positioning ring. One end of each sliding block is fixed to a positioning ring, and the other end is slidably connected to a screw. A first threaded sleeve and a second threaded sleeve are respectively provided on both sides of the sliding block. Both the first and second threaded sleeves are threadedly connected to the screws to lock and limit the position of the sliding block.

[0007] Furthermore, the diameter of the positioning ring is 1-2 mm larger than the diameter of the pre-embedded reinforcing bar.

[0008] Furthermore, a Y-shaped handle is provided on one end of the symmetrically arranged mounting plates, and the forked end of the Y-shaped handle is fixedly connected to the ends of the two mounting plates respectively.

[0009] Furthermore, the Y-shaped handpiece is hollowed out.

[0010] Furthermore, the mounting plate has a groove along its length, the screw is located in the groove, and the other end of the screw is provided with a nut, which locks the screw to the mounting plate.

[0011] Furthermore, it also includes a positioning post that matches the inner diameter of the positioning ring, the positioning post being detachably connected to the inside of the positioning ring.

[0012] The beneficial effects of this utility model are as follows:

[0013] (1) This technical solution is used to locate the embedded position of the pre-embedded steel bar on the first prefabricated component and the preset position of the connection hole on the second prefabricated component that matches the position of the pre-embedded steel bar in the prefabricated tunnel, so as to ensure the matching effect between the pre-embedded steel bar and the positioning hole, thereby improving the assembly effect of the first prefabricated component and the second prefabricated component in the later stage.

[0014] (2) This technical solution can quickly locate the position of the embedded steel bars and connecting holes, thereby improving the production rate of the first and second precast components.

[0015] Other advantages, objectives, and features of this invention will be set forth in the following description and will be apparent to those skilled in the art to some extent, or may be learned by practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0016] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:

[0017] Figure 1 This is a schematic diagram of the positioning device positioning the pre-embedded steel bars on the first precast component in this utility model;

[0018] Figure 2 This is a three-dimensional schematic diagram of the positioning device of this utility model;

[0019] Figure 3 This is a three-dimensional schematic diagram of the positioning device of this utility model from another perspective;

[0020] Figure 4This is a schematic diagram showing the connection between the first prefabricated component and the second prefabricated component in this utility model via pre-embedded steel bars.

[0021] The following labels are shown in the attached diagram:

[0022] 1. First precast component; 2. Second precast component; 3. Embedded steel bar; 4. Mounting plate; 5. Y-shaped handpiece; 6. Screw; 7. Nut; 8. Positioning ring; 9. Sliding block; 10. First threaded sleeve; 11. Second threaded sleeve; 12. Slide groove. Detailed Implementation

[0023] like Figures 1-4 As shown, this utility model discloses a positioning device for prefabricated tunnel components, which is used to position the pre-embedded steel bars 3 on the first prefabricated component 1 and the pre-set position of the connecting hole on the second component that matches the position of the pre-embedded steel bars 3 in the prefabricated tunnel, so as to ensure the matching effect between the pre-embedded steel bars 3 and the positioning hole and improve the subsequent assembly effect.

[0024] This includes symmetrically arranged mounting plates 4, each mounting plate 4 having at least one set of positioning components. The number of positioning components is the same as the number of rows of embedded reinforcing bars 3. Figure 1 As shown, there are two sets of positioning components. One set of positioning components includes symmetrically arranged screws 6. Both ends of the screws 6 are connected to the mounting plate 4. Several positioning rings 8 are provided between the two screws 6. The number of positioning rings 8 matches the specific number of steel bars in a row of pre-embedded steel bars 3. Sliding blocks 9 are symmetrically arranged on the positioning rings 8. One end of the sliding block 9 is fixed to the positioning ring 8, and the other end of the sliding block 9 is slidably connected to the screws 6. A first threaded sleeve 10 and a second threaded sleeve 11 are respectively provided on both sides of the sliding block 9. The first threaded sleeve 10 and the second threaded sleeve 11 are both threadedly connected to the screws 6 to lock and limit the position of the sliding block 9.

[0025] The working principle of the above technical solution is as follows:

[0026] When it is necessary to install the pre-embedded steel bars 3, according to the size of the installation plane at the end of the first precast component 1 and the expected number and quantity of the pre-embedded steel bars 3, a corresponding positioning component is set on the installation plate 4, and the number of positioning rings 8 on a set of positioning components is determined. Then, by rotating the first threaded sleeve 10 and the second threaded sleeve 11, the position of the positioning rings 8 is fixed on the screw 6. It is easy to understand that after the positioning is fixed, several positioning rings 8 are located in the installation plane at the end of the first precast component 1 and in the area where the pre-embedded steel bars 3 need to be installed. Then, the pre-embedded steel bars 3 are placed in the positioning rings 8, so that one end of them contacts the steel cage in the first precast component 1 and is welded and fixed, thus completing the positioning and installation of the pre-embedded steel bars 3. Then, the positioning device is removed and placed on the end face of the second precast component 2. That is, the position of the positioning rings 8 is the preset position of the connecting hole on the second precast component 2. This method can realize the positioning of the pre-embedded steel bars 3 and the connecting hole, ensuring the assembly effect of the two later.

[0027] In one feasible approach, the diameter of the positioning ring 8 is 1-2 mm larger than the diameter of the pre-embedded steel bar 3. The slightly larger diameter facilitates the placement of the pre-embedded steel bar 3. Of course, 1-2 mm is within the error range of the setting of the pre-embedded steel bar 3 and the connecting hole. If the accuracy is high, the diameter of the positioning ring is matched with the diameter of the pre-embedded steel bar 3.

[0028] In one feasible embodiment, a Y-shaped handheld part 5 is provided on one end of a symmetrically arranged mounting plate 4. The forked end (V-shaped end) of the Y-shaped handheld part 5 is fixedly connected to the ends of the two mounting plates 4 respectively, making it convenient for construction personnel to operate by hand.

[0029] In one feasible embodiment, the Y-shaped handpiece 5 is hollowed out to avoid interference with objects such as steel bars on the first precast component 1 and the second precast component 2.

[0030] In one feasible embodiment, the mounting plate 4 has a groove 12 along its length, the screw 6 is located in the groove 12, and the other end of the screw 6 is provided with a nut 7, which locks the screw 6 onto the mounting plate 4.

[0031] By sliding the screw 6, the spacing between adjacent positioning components can be adjusted, thereby adjusting the row spacing between the pre-embedded steel bars 3, so that the pre-embedded steel bars 3 can be evenly distributed in the mounting surface of the first prefabricated component 1. At the same time, the first threaded sleeve 10 and the second threaded sleeve 11 can adjust the spacing between adjacent steel bars in a row of pre-embedded steel bars 3, further improving the flexibility of this positioning component.

[0032] In one feasible embodiment, a positioning post matching the inner diameter of the positioning ring 8 is also included. The positioning post is detachably connected to the positioning ring 8. The positioning post is set by inserting it into the end of the cast second precast component 2, and after pulling it out, forming a preset position for the connection hole in the uncured concrete, which facilitates the embedding of the sleeve. After the concrete has cured, the sleeve is removed to form the connection hole.

[0033] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A positioning device for prefabricated tunnel embedded components, characterized in that: The device includes symmetrically arranged mounting plates (4), and at least one set of positioning components on the mounting plates (4). The positioning components include symmetrically arranged screws (6), with both ends of the screws (6) connected to the mounting plates (4). Several positioning rings (8) are provided between the two screws (6). Sliding blocks (9) are symmetrically arranged on the positioning rings (8). One end of the sliding block (9) is fixed to the positioning ring (8), and the other end of the sliding block (9) is slidably connected to the screws (6). A first threaded sleeve (10) and a second threaded sleeve (11) are respectively provided on both sides of the sliding block (9). The first threaded sleeve (10) and the second threaded sleeve (11) are both threadedly connected to the screws (6) to lock and limit the position of the sliding block (9).

2. The positioning device for prefabricated tunnel components according to claim 1, characterized in that: The diameter of the positioning ring (8) is 1-2 mm larger than the diameter of the pre-embedded steel bar (3).

3. The positioning device for prefabricated tunnel components according to claim 1, characterized in that: The mounting plates (4) arranged symmetrically are provided with a Y-shaped hand grip (5) at one end, and the forked end of the Y-shaped hand grip (5) is fixedly connected to the ends of the two mounting plates (4).

4. The positioning device for prefabricated tunnel components according to claim 3, characterized in that: The Y-shaped handpiece (5) is hollowed out.

5. A prefabricated tunnel pre-embedded component positioning device according to claim 3, characterized in that: The mounting plate (4) has a groove (12) along its length, the screw (6) is located in the groove (12), and the other end of the screw (6) is provided with a nut (7), which locks the screw (6) onto the mounting plate (4).

6. The positioning device for prefabricated tunnel components according to claim 1, characterized in that: It also includes a positioning post that matches the inner diameter of the positioning ring (8), the positioning post being detachably connected to the positioning ring (8).

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