Mobile reaction frame pull-out device

By designing a detachable mounting body and hydraulically controlled roller movement, the problems of disassembly and pull-out resistance during slope sliding of the reaction frame when its size or position changes are solved, enabling flexible installation and multiple uses of the reaction frame.

CN224452829UActive Publication Date: 2026-07-03CCCC TUNNEL ENG CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CCCC TUNNEL ENG CO LTD
Filing Date
2025-10-29
Publication Date
2026-07-03

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Abstract

This utility model discloses a mobile reaction frame pull-out resisting device, belonging to the technical field of pull-out resisting devices. It includes a mounting body detachably installed in the middle of the reaction frame column. A hydraulic cylinder is fixedly installed inside the mounting body. A first connecting member is fixedly connected to the telescopic end of the hydraulic cylinder. The other end of the first connecting member is rotatably connected to a second connecting member via a rotating shaft. A roller is rotatably connected to the other end of the second connecting member. This mobile reaction frame pull-out resisting device is detachably installed in the middle position of the reaction frame column, with the roller facing upwards. The roller can be controlled by the telescopic end of the hydraulic cylinder. When the telescopic end of the hydraulic cylinder extends, the roller moves towards the hydraulic cylinder; conversely, the roller moves away from the hydraulic cylinder. This utility model can be easily disassembled and installed, and can also slide on slopes for pull-out resisting, making it suitable for a wider range of applications.
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Description

Technical Field

[0001] This utility model belongs to the technical field of pull-out resistance devices, and more specifically, relates to a mobile reaction frame pull-out resistance device. Background Technology

[0002] Currently, conventional reaction frames are used for pull-out resistance by welding the reaction frame columns to the pre-embedded parts of the base plate or by welding the upper crossbeam of the reaction frame to the top main structure with diagonal bracing. Welding is a permanent connection method, and the reaction frame needs to be cut and re-welded when its size or position is changed. This method is difficult to adapt to temporary testing or multiple use requirements, and neither method has the function of resisting pull-out on slopes. Utility Model Content

[0003] The main purpose of this utility model is to provide a mobile reaction frame anti-pull-out device that can be disassembled and installed according to actual conditions, and can also slide to resist pull-out on slopes.

[0004] According to a first aspect of the present invention, a mobile reaction frame anti-pull-out device is provided, comprising an installation body detachably installed in the middle of the reaction frame column, a hydraulic cylinder fixedly installed inside the installation body, a first connecting member fixedly connected to the telescopic end of the hydraulic cylinder, the other end of the first connecting member being rotatably connected to a second connecting member via a rotating shaft, and a roller being rotatably connected to the other end of the second connecting member.

[0005] In a specific embodiment of this utility model, the mounting body includes two non-adjacent first plates, a second plate, and a third plate. The first plate, the second plate, and the third plate are welded together. A first partition is fixedly connected to the middle of the two first plates, and a second partition is fixedly connected to the middle of the second plate and the third plate. The first partition and the second partition are arranged perpendicular to each other.

[0006] In a specific embodiment of this utility model, the top of the first partition and the second plate are symmetrically provided with U-shaped grooves, the hydraulic cylinder is fitted with a fixing sleeve, the two sides of the fixing sleeve are provided with protrusions that cooperate with the U-shaped grooves, the protrusions are fitted with pads, and the pads are fixedly connected to the first partition and the second plate by bolts respectively.

[0007] In a specific embodiment of this utility model, the thickness of the first partition is greater than the thickness of the second partition.

[0008] In a specific embodiment of this utility model, the third plate is provided with a plurality of evenly distributed assembly holes.

[0009] In a specific embodiment of this utility model, a limiting hole is provided at the bottom of the second plate and the first partition plate, and a limiting post is provided on the second connector to cooperate with the limiting hole, and the limiting post is inserted into the limiting hole.

[0010] In a specific embodiment of this utility model, the bottom of the mounting body is provided with a notch for the roller to extend out.

[0011] In a specific embodiment of this utility model, the mounting body is a rectangular structure.

[0012] One of the above-described technical solutions of this utility model has at least one of the following advantages or beneficial effects:

[0013] This mobile reaction frame anti-pull-out device can be detachably installed in the middle of the reaction frame column with the rollers facing upwards. The rollers can be controlled by the extension and retraction end of the hydraulic cylinder. When the extension and retraction end of the hydraulic cylinder extends, the rollers move towards the hydraulic cylinder; conversely, the rollers move away from the hydraulic cylinder. This utility model can be detached and installed at will, and it can also slide to resist pull-out on slopes, making it suitable for more application scenarios. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a schematic diagram of the structure of the movable reaction frame anti-pull-out device in one embodiment of the present invention;

[0016] Figure 2 This is a cross-sectional view of the movable reaction frame anti-pull-out device in one embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the installation body in one embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of the movable reaction frame anti-pull-out device installed on the reaction frame column in one embodiment of the present invention. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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.

[0021] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" and "second" may explicitly or implicitly include one or more features.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection or a connection that can communicate with each other; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements, an indirect connection, or an interaction between two elements.

[0024] The following disclosure provides many different implementation methods or examples for different solutions to implement this utility model.

[0025] Reference Figures 1 to 4 As shown, a mobile reaction frame anti-pull-out device is provided, including a mounting body 1 that can be detachably installed in the middle of the reaction frame column. A hydraulic cylinder 2 is fixedly installed inside the mounting body 1. A first connecting member 3 is fixedly connected to the telescopic end of the hydraulic cylinder 2. The other end of the first connecting member 3 is rotatably connected to a second connecting member 6 through a rotating shaft 5. A roller 4 is rotatably connected to the other end of the second connecting member 6.

[0026] In this embodiment, the main body 1 is detachably mounted on the reaction frame column 100, and the roller 4 is set facing upward. The roller 4 can move back and forth on the support beam 200. By activating the hydraulic cylinder 2, the roller 4 can move away from or closer to the hydraulic cylinder 2, thereby resisting the pull-out of the support beam 200. This device can be disassembled and installed at will without welding. It can also slide on slopes to resist pull-out, making it suitable for more application scenarios.

[0027] In one embodiment of this utility model, the mounting body 1 includes two non-adjacent first plates 11, a second plate 12, and a third plate 13. The first plates 11, the second plates 12, and the third plate 13 are welded together. A first partition 14 is fixedly connected to the middle of the two first plates 11, and a second partition 15 is fixedly connected to the middle of the second plates 12 and the third plate 13. The first partition 14 and the second partition 15 are arranged perpendicular to each other, dividing the interior of the mounting body 1 into four areas.

[0028] Furthermore, the tops of the first partition 14 and the second plate 12 are symmetrically provided with U-shaped grooves 7. The hydraulic cylinder 2 is fitted with a fixing sleeve 8. The two sides of the fixing sleeve 8 are provided with protrusions 81 that cooperate with the U-shaped grooves 7. The protrusions 81 are fitted with pads 9. The pads 9 are fixedly connected to the first partition 14 and the second plate 12 by bolts respectively. Since the roller 4 is set upward, in order to prevent the hydraulic cylinder 2 from falling off naturally, the fixing sleeve 8 is fixedly connected to the second plate 12 and the first partition 14 by the pads 9.

[0029] Preferably, the thickness of the first partition 14 is greater than the thickness of the second partition 15. The second partition 15 can both enhance the internal strength of the mounting body 1 and save costs.

[0030] Furthermore, the third plate 13 has several evenly distributed assembly holes 131 for fixing to the reaction frame column 100 by bolts.

[0031] Furthermore, the bottom of the second plate 12 and the first partition plate 14 are provided with limiting holes 10, and the second connecting member 6 is provided with a limiting post 61 that cooperates with the limiting hole 10. The limiting post 61 is inserted into the limiting hole 10. When the extension end of the hydraulic cylinder 2 extends, it drives the first connecting member 3 to move. Since the limiting hole 10 is connected to the limiting post 61, the roller 4 will move towards the hydraulic cylinder 2; conversely, the roller 4 will move away from the hydraulic cylinder 2.

[0032] Preferably, a number of reinforcing ribs 16 are provided between the third plate 13 and the first partition plate 14.

[0033] In one embodiment of this utility model, the bottom of the mounting body 1 is provided with a notch 17 for the roller 4 to extend out.

[0034] In one embodiment of this utility model, the mounting body 1 is a rectangular structure.

[0035] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A mobile counterforce frame anti-pulling device, comprising a mounting main body (1) which is detachably mounted in the middle of a counterforce frame stand column, characterized in that, A hydraulic cylinder (2) is fixedly installed inside the mounting body (1). A first connecting piece (3) is fixedly connected to the telescopic end of the hydraulic cylinder (2). The other end of the first connecting piece (3) is rotatably connected to a second connecting piece (6) through a rotating shaft (5). A roller (4) is rotatably connected to the other end of the second connecting piece (6).

2. The mobile counterforted uplift device of claim 1, wherein, The mounting body (1) includes two non-adjacent first plates (11), a second plate (12), and a third plate (13). The first plates (11), the second plates (12), and the third plates (13) are welded together. A first partition (14) is fixedly connected to the middle of the two first plates (11), and a second partition (15) is fixedly connected to the middle of the second plates (12) and the third plates (13). The first partition (14) and the second partition (15) are arranged perpendicular to each other.

3. The mobile counterforce frame uplift device of claim 2, wherein, The top of the first partition (14) and the second plate (12) are symmetrically provided with U-shaped grooves (7). The hydraulic cylinder (2) is fitted with a fixing sleeve (8). The two sides of the fixing sleeve (8) are provided with protrusions (81) that cooperate with the U-shaped grooves (7). The protrusions (81) are fitted with pads (9). The pads (9) are fixedly connected to the first partition (14) and the second plate (12) by bolts respectively.

4. The mobile counterforted uplift device of claim 2, wherein, The thickness of the first partition (14) is greater than the thickness of the second partition (15).

5. The mobile counterforted uplift device of claim 2, wherein, The third plate (13) has several evenly distributed assembly holes (131).

6. The mobile counterforted uplift device of claim 2, wherein, The bottom of the second plate (12) and the first partition plate (14) are provided with limiting holes (10), and the second connector (6) is provided with a limiting post (61) that cooperates with the limiting hole (10). The limiting post (61) is inserted into the limiting hole (10).

7. The mobile counterforce frame uplift device of claim 1, wherein, The bottom of the mounting body (1) has a notch (17) for the roller (4) to extend out.

8. The mobile counterforted uplift device of claim 1, wherein, The mounting body (1) is a rectangular structure.