Adjustable formwork structure for concrete lining of a vent hole

Abstract

The utility model relates to concrete lining formwork trolley technical field, especially adjustable formwork structure of empty hole concrete lining, including support assembly, top steel formwork and two side steel formwork, both sides of support assembly all are equipped with hydraulic drive assembly, hydraulic drive assembly drive end is connected with side steel formwork, the contact end of side steel formwork and top steel formwork is equipped with telescopic cavity, the inner wall fixed connection of telescopic cavity has elastic rubber pad, the top fixed connection of elastic rubber pad has the pressing plate, the recess is equipped with in top steel formwork bottom, the mounting groove is equipped with in side steel formwork top, the inner wall fixed connection of mounting groove has slide rod. The utility model discloses the device, the elastic rubber pad and pressing plate are arranged in the telescopic cavity of side steel formwork, when side steel formwork closes, top steel formwork extrudes pressing plate, makes elastic rubber pad occur elastic deformation, automatically fills up the reserved gap between top, side formwork, fills the gap, avoids cement mortar leakage.

Description

Technical Field

[0001] This utility model relates to the field of concrete lining technology, and in particular to an adjustable template structure for venting concrete lining. Background Technology

[0002] In the construction of drainage tunnels in water conservancy projects, concrete lining formwork trolleys are specialized equipment used for secondary concrete lining construction in tunnels and underground engineering. Their core function is to achieve efficient support and forming control of concrete through formwork positioning, hydraulic support and walking mechanism.

[0003] A search revealed that patent CN223035041U discloses a concrete lining formwork trolley, mainly used for lining tunnel walls. However, in existing venting tunnel concrete lining formwork trolleys, the top and side steel formworks are usually directly spliced ​​during operation. The splicing of the side steel formworks is mainly driven by hydraulic cylinders. To avoid collisions between the top and side steel formworks during splicing, a certain gap is usually reserved. However, the existence of gaps can cause cement slurry to leak from the gaps during concrete pouring, resulting in material waste. Therefore, we propose an adjustable formwork structure for venting tunnel concrete lining. Utility Model Content

[0004] To solve the above problems, this utility model proposes an adjustable template structure for venting concrete lining. When the side steel template is closed, the top steel template squeezes the pressure plate, causing the elastic rubber pad to deform elastically and automatically fill the reserved gap between the top and side templates, thus preventing cement slurry leakage.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an adjustable template structure for venting concrete lining, comprising a support assembly, a top steel template, and two side steel templates. Hydraulic drive components are installed on both sides of the support assembly. The drive end of the hydraulic drive component is connected to the side steel template. A telescopic cavity is provided at the contact end between the side steel template and the top steel template. An elastic rubber pad is fixedly connected to the inner wall of the telescopic cavity, and a pressure plate is fixedly connected to the top of the elastic rubber pad.

[0006] Preferably, the bottom of the top steel template is provided with a groove, the top of the side steel template is provided with an installation groove, a sliding rod is fixedly connected to the inner wall of the installation groove, a spring is sleeved on the outer wall of the sliding rod, a sealing block is slidably connected to the inner wall of the installation groove, and the end of the sliding rod passes through the sealing block and is slidably connected to it.

[0007] Preferably, one end of the spring is fixedly connected to the side steel template, and the other end of the spring is fixedly connected to the sealing block.

[0008] Preferably, a rubber plate is fixedly connected to the side of the sealing block near the pressure plate.

[0009] Preferably, the support assembly includes a crossbeam, and two top columns are fixedly connected to the top of the crossbeam, with the top of the top columns fixedly connected to the top steel formwork.

[0010] Preferably, two walking columns are fixedly connected to the bottom of the crossbeam.

[0011] Preferably, the outer wall of the crossbeam is fixedly connected to two second hinge seats, the inner wall of the side steel template is fixedly connected to a first hinge plate and a second hinge plate, and the outer wall of the walking column is fixedly connected to a first hinge seat.

[0012] Preferably, the hydraulic drive assembly includes a first hydraulic cylinder and a second hydraulic cylinder, the second hinge is hinged to the first hydraulic cylinder, the first hinge is hinged to the second hydraulic cylinder, the output end of the first hydraulic cylinder is rotatably connected to the first hinge plate, and the output end of the second hydraulic cylinder is fixedly connected to the second hinge plate.

[0013] The AAA provided by this utility model has the following beneficial effects: 1. In this application, an elastic rubber pad and a pressure plate are installed in the expansion cavity of the side steel formwork. When the side steel formwork is closed, the top steel formwork squeezes the pressure plate, causing the elastic rubber pad to undergo elastic deformation, automatically filling the reserved gap between the top and side formwork, and preventing cement slurry leakage.

[0014] 2. In this application, under the elastic force of the spring, the sealing block can reseal the contact gap between the pressure plate and the side steel template and the top steel template after the side steel template and the top steel template are spliced.

[0015] 3. In this application, the flexible material of the rubber sheet can adapt to the contact surface error between the pressure plate and the sealing block, enhance the fit between the two, form a second flexible seal, and further reduce the risk of leakage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 In this utility model Figure 1 Enlarged view of point A in the middle.

[0017] In the diagram: 1. Crossbeam; 2. Top column; 3. Top steel formwork; 4. Walking column; 5. Side steel formwork; 6. First hinge plate; 7. Second hinge plate; 8. First hinge seat; 9. Second hinge seat; 10. First hydraulic cylinder; 11. Second hydraulic cylinder; 12. Groove; 13. Mounting groove; 14. Slide rod; 15. Spring; 16. Sealing block; 17. Rubber plate; 18. Telescopic cavity; 19. Elastic rubber pad; 20. Pressure plate.

[0018] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] like Figures 1-3 As shown, an adjustable template structure for venting concrete lining includes a support assembly, a top steel template 3, and two side steel templates 5. Hydraulic drive components are installed on both sides of the support assembly. The drive end of the hydraulic drive component is connected to the side steel template 5. The contact end of the side steel template 5 and the top steel template 3 is provided with a telescopic cavity 18. An elastic rubber pad 19 is fixedly connected to the inner wall of the telescopic cavity 18. A pressure plate 20 is fixedly connected to the top of the elastic rubber pad 19.

[0021] In existing formwork trolleys for venting tunnel concrete lining, the top steel formwork 3 and side steel formwork 5 collide during operation, typically leaving a gap. During concrete pouring, this gap causes cement slurry to leak, resulting in material waste. The present device, however, utilizes a hydraulic drive assembly, a telescopic cavity 18, an elastic rubber pad, and a pressure plate 20 to achieve the closure of the side steel formwork 5 and top steel formwork 3. During this process, the pressure plate 20 is compressed, and the elasticity of the rubber pad 19 seals the gap, preventing cement slurry leakage.

[0022] like Figure 2 As shown, the bottom of the top steel template 3 is provided with a groove 12, and the top of the side steel template 5 is provided with an installation groove 13. A sliding rod 14 is fixedly connected to the inner wall of the installation groove 13, and a spring 15 is sleeved on the outer wall of the sliding rod 14. A sealing block 16 is slidably connected to the inner wall of the installation groove 13. The end of the sliding rod 14 passes through the sealing block 16 and is slidably connected to it. One end of the spring 15 is fixedly connected to the side steel template 5, and the other end of the spring 15 is fixedly connected to the sealing block 16.

[0023] Under the elastic force of the spring 15, the sealing block 16 can reseal the contact gap between the pressure plate 20 and the side steel template 5 and the top steel template 3 after the side steel template 5 and the top steel template 3 are spliced.

[0024] like Figure 2 As shown, a rubber plate 17 is fixedly connected to the side of the sealing block 16 near the pressure plate 20.

[0025] The flexible material of the rubber sheet 17 can accommodate the contact surface error between the pressure plate 20 and the sealing block 16, enhance the fit between the two, form a second flexible seal, and further reduce the risk of leakage.

[0026] like Figure 1 As shown, the support assembly includes a crossbeam 1, with two top columns 2 fixedly connected to the top of the crossbeam 1. The top of the top columns 2 is fixedly connected to the top steel formwork 3, and two walking columns 4 are fixedly connected to the bottom of the crossbeam 1.

[0027] like Figure 1 and Figure 2 As shown, two second hinge seats 9 are fixedly connected to the outer wall of the crossbeam 1, a first hinge plate 6 and a second hinge plate 7 are fixedly connected to the inner wall of the side steel template 5, and a first hinge seat 8 is fixedly connected to the outer wall of the walking column 4. The hydraulic drive assembly includes a first hydraulic cylinder 10 and a second hydraulic cylinder 11. The second hinge seat 9 is hinged to the first hydraulic cylinder 10, the first hinge seat 8 is hinged to the second hydraulic cylinder 11, the output end of the first hydraulic cylinder 10 is rotatably connected to the first hinge plate 6, and the output end of the second hydraulic cylinder 11 is fixedly connected to the second hinge plate 7.

[0028] The first hinge plate 6 and the second hinge plate 7 cooperate with the corresponding first hinge seat 8 and second hinge seat 9 to provide a stable force transmission fulcrum for hydraulic drive, avoid force deviation at the output end of the first hydraulic cylinder 10 and the second hydraulic cylinder 11, and the hinge structure allows the side steel template 5 to rotate flexibly during adjustment, adapting to the splicing angle change between the side steel template 5 and the top steel template 3, and preventing the template from getting stuck.

[0029] In use, the output end of the first hydraulic cylinder 10 pushes the first hinge plate 6 of the side steel template 5, and the output end of the second hydraulic cylinder 11 pushes the second hinge plate 7 of the side steel template 5, applying a pushing force to the side steel template 5 so that it moves closer to the top steel template 3. When the side steel template 5 continues to move closer to the top steel template 3, the sealing block 16 at the top of the side steel template 5 first contacts the groove 12 at the bottom of the top steel template 3. Under the elastic force of the spring 15, the sealing block 16 is pushed to press against the contact gap between the side steel template 5 and the top steel template 3.

[0030] During the splicing process of the side steel formwork 5 and the top steel formwork 3, the bottom of the top steel formwork 3 presses the pressure plate 20 inside the side steel formwork 5, the pressure plate 20 compresses the elastic rubber pad 19, and the elastic deformation of the elastic rubber 19 fills the gap between the side steel formwork 5 and the top steel formwork 3. At the same time, the rubber plate 17 on the sealing block 16 fits with the pressure plate 20 to form a seal and prevent cement grout leakage.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Additionally, in the accompanying drawings of this utility model, the fill patterns are merely for distinguishing layers and do not constitute any other limitation.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable formwork structure for concrete lining of a vented cavity, comprising a support assembly, a top steel formwork (3), and two side steel formworks (5), characterized in that: Hydraulic drive components are installed on both sides of the support assembly. The drive end of the hydraulic drive component is connected to the side steel template (5). The contact end of the side steel template (5) and the top steel template (3) is provided with a telescopic cavity (18). An elastic rubber pad (19) is fixedly connected to the inner wall of the telescopic cavity (18). A pressure plate (20) is fixedly connected to the top of the elastic rubber pad (19).

2. The adjustable formwork structure for the concrete lining of the venting tunnel according to claim 1, characterized in that: The top steel template (3) has a groove (12) at the bottom and the side steel template (5) has an installation groove (13) at the top. A sliding rod (14) is fixedly connected to the inner wall of the installation groove (13). A spring (15) is sleeved on the outer wall of the sliding rod (14). A sealing block (16) is slidably connected to the inner wall of the installation groove (13). The end of the sliding rod (14) passes through the sealing block (16) and is slidably connected to it.

3. The adjustable formwork structure for the concrete lining of the venting tunnel according to claim 2, characterized in that: One end of the spring (15) is fixedly connected to the side steel template (5), and the other end of the spring (15) is fixedly connected to the sealing block (16).

4. The adjustable formwork structure for the concrete lining of the venting tunnel according to claim 3, characterized in that: A rubber plate (17) is fixedly connected to the side of the sealing block (16) near the pressure plate (20).

5. The adjustable formwork structure for the concrete lining of the venting tunnel according to claim 4, characterized in that: The support assembly includes a crossbeam (1), and two top columns (2) are fixedly connected to the top of the crossbeam (1). The top of the top columns (2) is fixedly connected to the top steel template (3).

6. The adjustable formwork structure for the concrete lining of the venting tunnel according to claim 5, characterized in that: The bottom of the crossbeam (1) is fixedly connected to two walking columns (4).

7. The adjustable formwork structure for the concrete lining of the venting tunnel according to claim 6, characterized in that: The outer wall of the crossbeam (1) is fixedly connected to two second hinge seats (9), the inner wall of the side steel template (5) is fixedly connected to a first hinge plate (6) and a second hinge plate (7), and the outer wall of the walking column (4) is fixedly connected to a first hinge seat (8).

8. The adjustable formwork structure for the concrete lining of the venting tunnel according to claim 7, characterized in that: The hydraulic drive assembly includes a first hydraulic cylinder (10) and a second hydraulic cylinder (11). The second hinge (9) is hinged to the first hydraulic cylinder (10), the first hinge (8) is hinged to the second hydraulic cylinder (11), the output end of the first hydraulic cylinder (10) is rotatably connected to the first hinge plate (6), and the output end of the second hydraulic cylinder (11) is fixedly connected to the second hinge plate (7).

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