A telescopic extension rod for push-pull force meter detection

By combining the limit block and the telescopic rod, the problem of low disassembly and assembly efficiency and poor adjustability of the existing telescopic extension rod used for push-pull force gauge testing is solved, realizing quick disassembly and assembly and flexible adjustment to adapt to doors of different structural sizes.

CN224551219UActive Publication Date: 2026-07-24TIANJIN FOYUE TECHNOLOGY DEVELOPMENT CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN FOYUE TECHNOLOGY DEVELOPMENT CO LTD
Filing Date
2025-10-11
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The existing telescopic extension rods used for push-pull force gauge testing are inefficient during disassembly and assembly, have poor adjustability, and are difficult to adapt to doors of different structural sizes.

Method used

A telescopic extension rod for push-pull force gauge testing was designed. Through the combination structure of limit block and telescopic rod, quick disassembly and flexible adjustment can be achieved. It includes the coordinated use of limit groove, limit block, telescopic rod, adapter and adjusting screw.

Benefits of technology

This improves the installation efficiency and adjustability of the device, enabling the telescopic extension rod for push-pull force gauge testing to be quickly installed and removed, and adaptable to doors of different structural sizes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a telescopic extension rod for push -pull force gauge detection relates to push -pull force detection technical field to solve the device pole is inconvenient quick assembly and disassembly, can affect the installation efficiency of device easily, and the adjustable nature of device improves, inconveniently according to the door of different structure size to the telescopic processing of device problem, including push -pull force gauge pull rod, the outer end of push -pull force gauge pull rod is connected and is installed with a group of outer pole, is set up in the limit slot on push -pull force gauge pull rod, and the outer end of adapter still is set up with a group of structure adapter slot, the utility model discloses push -pull force gauge pull rod is convenient for quick assembly and disassembly, has improved the installation efficiency of device, the guide rod on outer pole sliding installation is in the guide hole of telescopic rod, and the adjusting screw screw thread on outer pole is installed on the screw hole of telescopic rod, and the adjusting screw is rotated, to adjust the outer pole and telescopic rod outer end spacing, thereby make this device have better adjustable nature, conveniently according to the door of different structure size to the telescopic processing of device.
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Description

Technical Field

[0001] This utility model belongs to the field of push-pull force detection technology, and more specifically, it relates to a telescopic extension rod for push-pull force gauge detection. Background Technology

[0002] When measuring the force of a push-pull force gauge in the field of subway platform doors, an extension rod needs to be added according to the size and distance of the door. Therefore, a telescopic extension rod for push-pull force gauge testing is required.

[0003] Existing telescopic extension rods for push-pull force gauges have several drawbacks. Firstly, the rods are not easy to assemble and disassemble quickly, which can affect the installation efficiency. Secondly, the increased adjustability makes it difficult to adjust the extension or retraction of the device according to different door sizes. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a telescopic extension rod for push-pull force gauge testing, which solves the problems of existing similar devices where the rods are inconvenient to quickly disassemble and assemble, easily affecting the installation efficiency of the device; and the problem that while the device's adjustability is improved, it is not convenient to extend or retract the device according to doors of different structural sizes.

[0005] The telescopic extension rod for push-pull force gauge testing in this utility model is achieved through the following specific technical means:

[0006] A telescopic extension rod for push-pull force gauge testing, comprising a push-pull force gauge rod;

[0007] The outer end of the push-pull force gauge pull rod is snapped with a set of external rods. The push-pull force gauge pull rod has a limit groove. Two sets of limit blocks are slidably installed on the external rods. The two sets of limit blocks on the external rods are respectively inserted into the limit grooves of the push-pull force gauge pull rods. A set of telescopic rods is threaded on the outer end of the external rods. A set of adapters is also threaded on the outer end of the telescopic rods. A set of structural adapter grooves is also provided on the outer end of the adapters.

[0008] Furthermore, a set of elastic elements is also sleeved on the connecting rod at the top of the limiting block, and the outer end of the elastic elements is in contact with the inner end face of the support plate on the outer rod.

[0009] Furthermore, the outer end of the telescopic rod is provided with a set of threaded interfaces, and the inner end of the adapter is fixedly installed with a connecting screw, and the connecting screw at the inner end of the adapter is threaded onto the threaded interface at the outer end of the telescopic rod.

[0010] Furthermore, a set of support plates is fixedly installed on the top of the external rod, and a set of sliding holes are opened on the support plates. A set of connecting rods is fixedly installed on the top of the limiting block, and the connecting rods on the top of the limiting block are slidably installed on the sliding holes of the support plates.

[0011] Furthermore, an adjusting screw is rotatably mounted on the external rod, and a set of threaded holes are provided on the telescopic rod, with the adjusting screw on the external rod threaded onto the threaded holes of the telescopic rod.

[0012] Furthermore, a set of guide rods is fixedly installed on the external rod, and a set of guide holes are opened on the telescopic rod, with the guide rods on the external rod slidably installed on the guide holes of the telescopic rod.

[0013] Furthermore, a set of positioning blocks is fixedly installed on the inner end of the push-pull force gauge rod, and a set of positioning grooves is opened on the outer end of the outer connecting rod. The positioning block at the inner end of the push-pull force gauge rod is inserted into the positioning groove at the outer end of the outer connecting rod.

[0014] Compared with the prior art, the telescopic extension rod for push-pull force gauge testing of this utility model has the following beneficial effects:

[0015] 1. The external rod design facilitates the sliding installation of the connecting rod at the top of the limiting block onto the sliding hole of the support plate. By pulling the limiting block outward, the positioning block at the inner end of the push-pull force gauge rod is inserted into the positioning groove at the outer end of the external rod. After the external rod moves to a fixed position, the limiting block is released. Under the action of the elastic element on the connecting rod, the two sets of limiting blocks on the external rod are respectively inserted into the limiting groove of the push-pull force gauge rod. This makes the push-pull force gauge rod of this device easy to assemble and disassemble quickly, improving the installation efficiency of the device.

[0016] 2. The telescopic rod is designed to allow the guide rod on the outer rod to slide onto the guide hole of the telescopic rod, and the adjusting screw on the outer rod is threaded onto the threaded hole of the telescopic rod. By rotating the adjusting screw, the distance between the outer rod and the outer end of the telescopic rod can be adjusted, thus giving the device better adjustability and making it easy to extend and retract the device according to different door sizes. Attached Figure Description

[0017] Figure 1 This is a front axial view schematic diagram of this utility model.

[0018] Figure 2 This is a schematic diagram of the assembly and disassembly of the adapter of this utility model.

[0019] Figure 3 This is a schematic diagram of the disassembly and assembly of the telescopic rod of this utility model.

[0020] Figure 4 This is a schematic diagram of the disassembly and assembly of the push-pull force gauge rod of this utility model.

[0021] Figure 5 This is a schematic diagram of the installation of the push-pull force gauge rod of this utility model.

[0022] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0023] 1. Push-pull force gauge rod; 101. Positioning block; 102. Limiting groove; 2. External rod; 201. Guide rod; 202. Adjusting screw; 203. Positioning groove; 204. Limiting block; 2041. Connecting rod; 2042. Elastic element; 205. Support plate; 3. Telescopic rod; 301. Threaded interface; 302. Guide hole; 303. Threaded hole; 4. Adapter; 401. Structural adapter groove; 402. Connecting screw. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0025] As attached Figure 1 To be continued Figure 5 As shown:

[0026] Example 1: This utility model provides a telescopic extension rod for push-pull force gauge testing, including a push-pull force gauge rod 1;

[0027] A set of external rods 2 are snapped onto the outer end of the push-pull force gauge pull rod 1. A limit groove 102 is provided on the push-pull force gauge pull rod 1. Two sets of limit blocks 204 are slidably installed on the external rod 2. The two sets of limit blocks 204 on the external rod 2 are respectively inserted into the limit groove 102 of the push-pull force gauge pull rod 1. A set of telescopic rods 3 are threaded onto the outer end of the external rod 2. A set of adapters 4 are also threaded onto the outer end of the telescopic rods 3. A set of structural adapter grooves 401 is also provided on the outer end of the adapters 4.

[0028] like Figure 4 and Figure 5As shown, a set of positioning blocks 101 are fixedly installed on the inner end of the push-pull force gauge rod 1, and a set of positioning grooves 203 are opened on the outer end of the external connecting rod 2. The positioning blocks 101 at the inner end of the push-pull force gauge rod 1 are inserted into the positioning grooves 203 at the outer end of the external connecting rod 2. A set of support plates 205 are fixedly installed on the top of the external connecting rod 2. A set of sliding holes are opened on the support plates 205. A set of connecting rods 2041 are fixedly installed on the top of the limiting block 204, and the connecting rods 2041 at the top of the limiting block 204 are slidably installed on the sliding holes of the support plates 205. A set of elastic elements 2042 are also sleeved on the connecting rods 2041 at the top of the limiting block 204, and the outer end of the elastic element 2042 is in contact with the inner end face of the support plate 205 on the external connecting rod 2. A set of threaded interfaces 30 are opened on the outer end of the telescopic rod 3. 1. A connecting screw 402 is fixedly installed on the inner end of the adapter 4, and the connecting screw 402 on the inner end of the adapter 4 is threaded onto the threaded interface 301 on the outer end of the telescopic rod 3. Specifically, the connecting rod 2041 on the top of the limiting block 204 is slidably installed on the sliding hole of the support plate 205. Pulling the limiting block 204 outward, the positioning block 101 on the inner end of the push-pull force gauge rod 1 is inserted into the positioning groove 203 on the outer end of the external rod 2. After the external rod 2 moves to the fixed position, the limiting block 204 is released. Under the action of the elastic element 2042 on the connecting rod 2041, the two sets of limiting blocks 204 on the external rod 2 are respectively inserted into the limiting groove 102 of the push-pull force gauge rod 1, thereby making the push-pull force gauge rod 1 of this device easy to quickly disassemble and assemble, and improving the installation efficiency of the device.

[0029] Example 2: Based on Example 1, as follows Figure 3 As shown, a set of guide rods 201 are fixedly installed on the outer rod 2, and a set of guide holes 302 are opened on the telescopic rod 3. The guide rods 201 on the outer rod 2 are slidably installed on the guide holes 302 of the telescopic rod 3. A set of adjusting screws 202 are rotatably installed on the outer rod 2, and a set of threaded holes 303 are opened on the telescopic rod 3. The adjusting screws 202 on the outer rod 2 are threadedly installed on the threaded holes 303 of the telescopic rod 3. Specifically, the guide rods 201 on the outer rod 2 are slidably installed on the guide holes 302 of the telescopic rod 3, and the adjusting screws 202 on the outer rod 2 are threadedly installed on the threaded holes 303 of the telescopic rod 3. By rotating the adjusting screws 202, the distance between the outer ends of the outer rod 2 and the telescopic rod 3 can be adjusted, thereby giving the device better adjustability and facilitating the telescopic treatment of doors with different structural dimensions.

[0030] The specific usage and function of this embodiment are as follows:

[0031] In use, the connecting rod 2041 at the top of the limiting block 204 is slidably installed on the sliding hole of the support plate 205. Pulling the limiting block 204 outward causes the positioning block 101 at the inner end of the push-pull force gauge rod 1 to be inserted into the positioning groove 203 at the outer end of the outer rod 2. After the outer rod 2 moves to a fixed position, the limiting block 204 is released. Under the action of the elastic element 2042 on the connecting rod 2041, the two sets of limiting blocks 204 on the outer rod 2 are respectively inserted into the limiting position of the push-pull force gauge rod 1. The groove 102 facilitates quick assembly and disassembly of the push-pull force gauge rod 1, improving the installation efficiency of the device. The guide rod 201 on the external rod 2 is slidably mounted on the guide hole 302 of the telescopic rod 3, and the adjusting screw 202 on the external rod 2 is threaded onto the threaded hole 303 of the telescopic rod 3. By rotating the adjusting screw 202, the distance between the outer ends of the external rod 2 and the telescopic rod 3 can be adjusted, thereby giving the device better adjustability and facilitating telescopic treatment of doors with different structural dimensions.

[0032] The following points should be noted in this article:

[0033] 1. The accompanying drawings of this utility model embodiment only involve the structure involved in this utility model embodiment; other structures can refer to general designs.

[0034] 2. Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0035] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A telescopic extension rod for push-pull force gauge testing, characterized in that: Includes the push-pull force gauge lever (1); The outer end of the push-pull force gauge rod (1) is fitted with a set of external rods (2). The push-pull force gauge rod (1) has a limit groove (102). Two sets of limit blocks (204) are slidably installed on the external rod (2). The two sets of limit blocks (204) on the external rod (2) are respectively inserted into the limit groove (102) of the push-pull force gauge rod (1). The outer end of the external rod (2) is threaded with a set of telescopic rods (3). The outer end of the telescopic rods (3) is also threaded with a set of adapters (4). The outer end of the adapters (4) is also provided with a set of structural adapter grooves (401).

2. The telescopic extension rod for push-pull force gauge testing according to claim 1, characterized in that: A set of positioning blocks (101) is fixedly installed on the inner end of the push-pull force gauge rod (1), and a set of positioning grooves (203) is opened on the outer end of the outer rod (2). The positioning block (101) at the inner end of the push-pull force gauge rod (1) is inserted into the positioning groove (203) at the outer end of the outer rod (2).

3. The telescopic extension rod for push-pull force gauge testing according to claim 1, characterized in that: A set of support plates (205) are fixedly installed on the top of the external rod (2). A set of sliding holes are provided on the support plates (205). A set of connecting rods (2041) are fixedly installed on the top of the limiting block (204), and the connecting rods (2041) on the top of the limiting block (204) are slidably installed on the sliding holes of the support plates (205).

4. The telescopic extension rod for push-pull force gauge testing according to claim 1, characterized in that: A set of elastic elements (2042) is also sleeved on the connecting rod (2041) at the top of the limiting block (204), and the outer end of the elastic element (2042) is in contact with the inner end face of the support plate (205) on the outer rod (2).

5. A telescopic extension rod for push-pull force gauge testing according to claim 1, characterized in that: The telescopic rod (3) has a set of threaded interfaces (301) at its outer end, and the adapter (4) has a connecting screw (402) fixedly installed at its inner end. The connecting screw (402) at the inner end of the adapter (4) is threaded onto the threaded interface (301) at the outer end of the telescopic rod (3).

6. A telescopic extension rod for push-pull force gauge testing according to claim 1, characterized in that: A set of guide rods (201) is fixedly installed on the external rod (2), and a set of guide holes (302) are opened on the telescopic rod (3), and the guide rods (201) on the external rod (2) are slidably installed on the guide holes (302) of the telescopic rod (3).

7. A telescopic extension rod for push-pull force gauge testing according to claim 1, characterized in that: An adjusting screw (202) is rotatably mounted on the external rod (2), and a set of threaded holes (303) are opened on the telescopic rod (3), and the adjusting screw (202) on the external rod (2) is threaded onto the threaded hole (303) of the telescopic rod (3).