A pull-out force testing device

By designing a pull-out force testing device that includes a vertical rod, a clamping assembly, and a lifting device, the problems of instability and laboriousness of holding the force gauge by hand in traditional pull-out force testing devices are solved, and accurate pull-out force measurement is achieved.

CN224594101UActive Publication Date: 2026-08-04TONGLI TESTING CERTIFICATION (GUANGDONG) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TONGLI TESTING CERTIFICATION (GUANGDONG) CO LTD
Filing Date
2025-06-23
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Traditional pull-out force testing devices are prone to hand tremors and deviation when holding the force gauge, making them both laborious and inaccurate.

Method used

A pull-out force testing device was designed, comprising a vertical rod, a clamping assembly, a force gauge, and a lifting and lowering device. The clamping assembly holds the part to be tested, and the force gauge is fixed to the moving end of the lifting device. The cooperation between the lifting device and the vertical screw ensures the stable lifting and lowering of the force gauge, thereby achieving accurate pull-out force testing.

Benefits of technology

It achieves stability and accuracy in pull-out force testing, avoids the deviation and effort problems caused by holding the force measuring timer by hand, and makes the test results more reliable.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to pull -out force test technical field discloses a pull -out force testing device, including vertical pole, fixture assembly, dynamometer still includes up and down elevating elevating gear, the vertical pole is opposite fixed with fixture assembly, elevating gear is located on the vertical pole, the dynamometer is fixed in elevating gear mobile end, the fixture assembly clamping opening is towards the dynamometer force end. When using, the measured component fixing piece is placed on the fixture assembly and is clamped, and the force end of the dynamometer is fixed on the plug -in spare of the measured component, the elevating gear is adjusted to go up, and the tension gradually increases, when the plug -in spare is pulled out, the dynamometer shows the tension value at this moment, thereby tests the pull -out force, solves the problem that the traditional pull -out force testing device hand holds the dynamometer and is easy to hand shake and produces the deviation, and the problem that it is both laborious and inaccurate.
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Description

Technical Field

[0001] This utility model relates to the field of pull-out force testing technology, and in particular to a pull-out force testing device. Background Technology

[0002] Connections between components, especially electrical connections, require pull-out force testing to verify compliance with pull-out force requirements. Traditional pull-out force testing devices use clamps to secure the component under test, then the force gauge is held by hand, with the measuring end attached to the insert plate of the component under test. The force gauge is then pulled until the insert plate is pulled out, and the measured value is taken as the pull-out force. However, holding the force gauge by hand is prone to tremors and deviations, making it both laborious and inaccurate.

[0003] Therefore, it is necessary to develop a new pull-out force testing device to solve the problems of traditional pull-out force testing devices, such as hand tremors and deviations when holding the force gauge, which are both laborious and inaccurate. Utility Model Content

[0004] This invention provides a pull-out force testing device that solves the problems of traditional pull-out force testing devices, which are easy to shake and deviate when holding the force gauge, and are both laborious and inaccurate.

[0005] The technical problem solved by this utility model is achieved by the following technical solution:

[0006] A pull-out force testing device includes a vertical rod, a clamp assembly, a force gauge, and a lifting device for vertical movement. The vertical rod and the clamp assembly are fixed relative to each other. The lifting device is mounted on the vertical rod. The force gauge is fixed to the moving end of the lifting device. The clamping opening of the clamp assembly faces the force measuring end of the force gauge.

[0007] Furthermore, the lifting device includes a movable crossbar with a vertical rod hole that allows a vertical rod to pass through. The vertical rod passes through the vertical rod hole, and the force gauge is fixed to one end of the movable crossbar.

[0008] Furthermore, it also includes a vertical screw, and the movable crossbar is provided with a vertical screw hole that is threadedly engaged with the vertical screw, and the vertical screw is threadedly engaged with the vertical screw hole.

[0009] Furthermore, it also includes a fixed crossbar, the vertical bar being fixedly connected to the top of the fixed crossbar, and the fixed crossbar having an adjustment hole in the middle that allows the vertical screw to pass through.

[0010] Furthermore, a rocker arm is provided at the top of the vertical screw.

[0011] Furthermore, the clamp assembly includes a fixed base, a horizontal screw, a fixed clamping plate, and a movable clamping plate. The fixed base is fixed relative to the vertical rod. The fixed base is provided with a horizontal screw hole that is threaded to the horizontal screw. The horizontal screw is threaded to the horizontal screw hole. The movable clamping plate has a rod opening on the side facing away from the fixed clamping plate to accommodate the end of the horizontal screw.

[0012] Furthermore, a guide rail is provided between the movable clamping plate and the fixed base.

[0013] Furthermore, it also includes a base, on which the vertical rod and clamp assembly are respectively fixed.

[0014] Furthermore, the force gauge is provided with a hook located at the bottom.

[0015] The beneficial effects of this utility model are:

[0016] This invention utilizes a lifting device that allows for vertical movement. A vertical rod and a clamping assembly are fixed relative to each other. The lifting device is positioned on the vertical rod, and the force gauge is fixed to the moving end of the lifting device. The clamping opening of the clamping assembly faces the force measuring end of the force gauge. In use, the component to be tested is placed on the clamping assembly and clamped. The force measuring end of the force gauge is fixed to the insert / pull-out component of the component being tested. The lifting device is adjusted to rise, gradually increasing the pulling force. When the insert / pull-out component is pulled out, the force gauge displays the pulling force value, thus testing the pull-out force. This invention solves the problems of traditional pull-out force testing devices where the force gauge is easily shaken and deviates, requiring considerable effort and being inaccurate. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a perspective view of the present invention. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0020] See Figure 1A pull-out force testing device includes a vertical rod 1, a clamp assembly 2, a force gauge 3, and a lifting device 4 for vertical movement. The vertical rod 1 is fixed relative to the clamp assembly 2, the lifting device 4 is mounted on the vertical rod 1, and the force gauge 3 is fixed to the moving end of the lifting device 4. The clamping opening of the clamp assembly 2 faces the force measuring end of the force gauge 3. In use, the component to be tested is placed on the clamp assembly 2 and clamped. The force measuring end of the force gauge 3 is fixed to the insert / pull-out part of the component to be tested. The lifting device 4 is adjusted to rise, and the pulling force gradually increases. When the insert / pull-out part is pulled out, the force gauge displays the pulling force value, thus testing the pull-out force. The pull-out direction will not deviate, solving the problems of traditional pull-out force testing devices where the force gauge is easily shaken and deviated, requiring effort and being inaccurate.

[0021] The lifting device 4 includes a movable horizontal bar 41 with a vertical rod hole 42 through which the vertical rod 1 passes. The vertical rod 1 passes through the vertical rod hole 42, and the force gauge 3 is fixed to one end of the movable horizontal bar 41. This allows the movable horizontal bar 41 to be moved with the vertical rod 1 as a guide, further ensuring that the lifting direction of the force gauge 3 remains consistent and does not deviate.

[0022] It also includes a vertical screw 43, and the movable crossbar 41 is further provided with a vertical screw hole 44 that is threadedly engaged with the vertical screw 43. The vertical screw 43 and the vertical screw hole 44 are threadedly engaged. By rotating the vertical screw 44, the movable crossbar 41 can be raised and lowered, allowing for fine-tuning of the raising and lowering, making the pull-out more stable and the testing more accurate.

[0023] It also includes a fixed crossbar 45, to which the top of the vertical rod 1 is fixedly connected. The fixed crossbar 45 has an adjustment hole 46 in the middle to allow the vertical screw 43 to pass through. This can further stabilize the direction of the vertical screw 43, further ensuring more stable pull-out and more accurate testing.

[0024] The vertical screw 43 is provided with a crank handle 47 at its top. This allows the vertical screw 43 to be rotated more effortlessly.

[0025] The clamp assembly 2 includes a fixed base 21, a horizontal screw 22, a fixed clamping plate 23, and a movable clamping plate 24. The fixed base 21 is fixed relative to the vertical rod 1. The fixed base 21 has a horizontal screw hole that is threaded into the horizontal screw 22. The horizontal screw 22 is threaded into the horizontal screw hole. The movable clamping plate 24 has a rod opening 25 on its side facing away from the fixed clamping plate 23 to accommodate the end of the horizontal screw 22. Adjusting the horizontal screw 22 moves the movable clamping plate 24, thereby clamping the fixing part of the measured component. This clamping assembly has a simple structure, can be used for fixing parts of different sizes, and provides stable clamping.

[0026] A guide rail 26 is provided between the movable clamping plate 24 and the fixed base 21. This helps to further ensure that the clamping direction does not deviate.

[0027] It also includes a base 5, on which the vertical rod 1 and the clamp assembly 2 are respectively fixed. The base 5 facilitates the transport of the entire pull-out force testing device, allowing testing to be performed anywhere.

[0028] The force gauge 3 is equipped with a hook 31 located at the bottom. This facilitates the pulling of the insert plate with the hook ring.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pull-out force testing device, comprising a vertical rod (1), a clamp assembly (2), and a force gauge (3), characterized in that: It also includes a lifting device (4) for vertical lifting, the vertical rod (1) and the clamp assembly (2) are fixed relative to each other, the lifting device (4) is set on the vertical rod (1), the force gauge (3) is fixed on the moving end of the lifting device (4), and the clamping opening of the clamp assembly (2) faces the force measuring end of the force gauge (3); The lifting device (4) includes a movable crossbar (41), which has a vertical rod hole (42) that allows the vertical rod (1) to pass through. The vertical rod (1) passes through the vertical rod hole (42), and the force gauge (3) is fixed to one end of the movable crossbar (41). It also includes a vertical screw (43), and the movable crossbar (41) is also provided with a vertical screw hole (44) that is threadedly engaged with the vertical screw (43), and the vertical screw (43) is threadedly engaged with the vertical screw hole (44); The top of the vertical screw (43) is provided with a rocker handle (47); The clamp assembly (2) includes a fixed base (21), a horizontal screw (22), a fixed clamping plate (23), and a movable clamping plate (24). The fixed base (21) is fixed relative to the vertical rod (1). The fixed base (21) is provided with a horizontal screw hole that is threaded to the horizontal screw (22). The horizontal screw (22) is threaded to the horizontal screw hole. The movable clamping plate (24) is provided with a rod opening (25) on the side away from the fixed clamping plate (23) to accommodate the end of the horizontal screw (22).

2. The pull-out force testing device according to claim 1, characterized in that: It also includes a fixed crossbar (45), the top of which is fixedly connected to the vertical bar (1), and the middle of the fixed crossbar (45) is provided with an adjustment hole (46) that allows the vertical screw (43) to pass through.

3. The pull-out force testing device according to claim 1, characterized in that: A guide rail (26) is provided between the movable clamp (24) and the fixed base (21).

4. The pull-out force testing device according to claim 1, characterized in that: It also includes a base (5), on which the vertical rod (1) and the clamp assembly (2) are respectively fixed.

5. The pull-out force testing device according to any one of claims 1 to 4, characterized in that: The force gauge (3) is provided with a hook (31) located at the bottom.