Anti-oscillation capacitance tester

The multi-layered anti-vibration structure and convenient replacement design improve the vibration resistance and ease of operation of the capacitance tester, solve the problem of insufficient vibration resistance, and ensure the accuracy of test results and equipment safety.

CN224190059UActive Publication Date: 2026-05-01SHENZHEN HENGHUIXIN TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN HENGHUIXIN TECHNOLOGY CO LTD
Filing Date
2025-01-21
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing capacitance testers lack sufficient shock resistance; external vibrations or impacts affect test results, and they are inconvenient to operate.

Method used

It adopts a multi-layered seismic-resistant structure, including a seismic protective shell, seismic plates, seismic airbags, and bolt connections. The seismic plates can be easily replaced with Velcro, the airbags can be easily replaced with plug slots, and the bolts can increase the seismic area and direction.

Benefits of technology

This improves the vibration resistance of the capacitance tester, ensures the accuracy of test results, facilitates operation, and enhances the safety and effectiveness of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anti-vibration capacitance tester, which comprises a capacitance tester body, test interfaces and an anti-vibration protective shell, the anti-vibration protective shell is sleeved on the surface of the capacitance tester body, the test interfaces are arranged on two sides of the front surface of the capacitance tester body, and first anti-vibration sheets are arranged on two sides of the top and the bottom of the inner wall of the anti-vibration protective shell. According to the utility model, the first anti-seismic sheet is arranged, the first anti-seismic sheet and the anti-seismic air bag are used for further buffering and seismic resistance, so that the anti-seismic strength is further improved, the first anti-seismic sheet is used for seismic resistance in the up-down direction, and the anti-seismic air bag acts on seismic resistance in the left-right direction; the problems that the use effect of the tester is reduced and the test result is influenced when the tester is subjected to external vibration or impact due to low overall vibration resistance caused by the fact that only one single anti-vibration insulation case is arranged on the surface of the tester in a sleeving manner for vibration resistance are solved, and the effect of assisting vibration is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of circuit capacitance testing technology, specifically to an anti-vibration capacitance tester. Background Technology

[0002] Electrical lines refer to the conductors that connect and transmit electrical energy between electrical devices, mainly including high-voltage induced voltage lines and low-voltage control lines. When power transmission lines and electrical equipment in a power system are working, the constantly changing current generates a changing magnetic field around them. When this changing magnetic field encounters a conductor, it induces an electromotive force. This process of generating an electromotive force is called electromagnetic induction. The voltage generated on conductors near power lines and electrical equipment by electromagnetic induction and electrostatic induction is called induced voltage. When induced voltage forms a conductive circuit, it can cause harm to people. If it does not form a conductive circuit, there is a safety hazard. Therefore, induced voltage should be limited to a certain range.

[0003] For example, patent application number CN202220452425.6 discloses a dedicated protection test device for line parameter testing. The protection test device includes: a controller connected to a frequency converter via an input terminal to charge a lithium battery within the controller; a voltage regulator located between the frequency converter and the lithium battery; a voice player and a wireless transceiver connected to the controller; a frequency converter connected to the controller's input terminal via three-phase terminals to charge the lithium battery within the controller; a protection switch with an air circuit breaker used to switch the switch between the host grounding position and the line test position to complete the boost line test operation; the protection switch connected to the controller via a current interface; a speaker configured to cooperate with the voice player; and a grounding terminal on the protection switch.

[0004] Based on the search of the aforementioned patents and the discovery of existing equipment, while the aforementioned equipment can solve the problems of low safety factor during electrical circuit testing due to the high voltage level of the induced voltage, and the potential for electrical accidents when changing test wiring, which could damage and endanger the personal safety of test personnel and the safety of test equipment; at the same time, it has poor operational convenience during testing and cannot quickly switch actions according to actual needs to complete accurate testing of electrical circuits.

[0005] However, in use, relying solely on a single shock-resistant and insulated enclosure to protect the tester from vibration results in low overall vibration resistance, thus reducing the effectiveness of the tester and affecting the test results when subjected to external vibrations or impacts. Utility Model Content

[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide an anti-vibration capacitance tester that has the advantage of assisting vibration. This solves the problem that relying solely on a single anti-vibration insulating enclosure on the surface of the tester for vibration resistance results in low overall vibration resistance, thereby reducing the effectiveness of the tester and affecting the test results when subjected to external vibration or impact.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a shockproof capacitance tester, comprising a capacitance tester body, a test interface, and a shockproof protective shell. The shockproof protective shell is fitted onto the surface of the capacitance tester body. The test interface is located on both sides of the front of the capacitance tester body. First shock-absorbing plates are provided on both sides of the top and bottom of the inner wall of the shockproof protective shell. Shock-absorbing airbags are provided on both sides of the top and bottom of the inner wall of the shockproof protective shell. Limiting shock-absorbing strips are adhered to the front of the top and bottom of the inner wall of the shockproof protective shell. Connecting components are fixedly connected to the inner side of the first shock-absorbing plates. Shock-absorbing components are provided at the four corners of the back of the capacitance tester body.

[0008] In a preferred embodiment of this invention, the connecting component includes a first Velcro strap, the outer side of which is fixedly connected to the inner side of the first shock-absorbing sheet, and a second Velcro strap is attached to the inner side of the first Velcro strap. The inner side of the second Velcro strap is fixedly connected to the top and bottom sides of the capacitance tester body.

[0009] As a preferred embodiment of this utility model, the anti-vibration component includes a second anti-vibration plate and a bolt. The second anti-vibration plate is located at the four corners of the back of the capacitance tester body. The front of the bolt penetrates into the interior of the capacitance tester body and is threadedly connected to the capacitance tester body. The second anti-vibration plate is fixedly connected to the capacitance tester body through the bolt.

[0010] As a preferred embodiment of this utility model, the outer side of the shock-absorbing airbag is fixedly connected with a plug-in sleeve, and the top and bottom of both sides of the front of the shock-absorbing protective shell are provided with plug-in grooves, which are plugged into the plug-in sleeve.

[0011] As a preferred embodiment of this utility model, the back of the second anti-seismic pad is provided with an embedding groove, and the front of the limiting anti-seismic strip is provided with a reinforcing strip, the outer side of which is adhered to the front side of the top and bottom of the inner wall of the anti-seismic protective shell.

[0012] As a preferred embodiment of this utility model, the surface of the back of the bolt is provided with anti-slip grooves, and the anti-slip grooves are provided in a plurality of them and are distributed in a ring at equal intervals.

[0013] As a preferred embodiment of this invention, an air inlet is provided on one side of the front of the shock-absorbing airbag, and a sealing plug is embedded inside the air inlet.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model improves the shock resistance by setting a first shock-absorbing plate and using the shock-absorbing airbag to further buffer and resist shock. The first shock-absorbing plate is used for shock resistance in the vertical direction, while the shock-absorbing airbag is used for shock resistance in the horizontal direction. This solves the problem that relying solely on a single shock-absorbing insulating casing on the surface of the test instrument for shock resistance results in low overall shock resistance, which reduces the effectiveness of the test instrument and affects the test results when subjected to external vibration or impact. This invention achieves the effect of assisting in shock resistance.

[0016] 2. By setting up a connecting component, when the first shock absorber is damaged after long-term use, the user can tear off the first shock absorber, causing the first shock absorber to pull off the corresponding first hook and loop fastener, thereby separating it from the corresponding second hook and loop fastener. Then, the first hook and loop fastener on the new first shock absorber can be pasted to the corresponding second hook and loop fastener, thereby quickly replacing the first shock absorber.

[0017] 3. By setting up an anti-seismic component, this utility model can also use a second anti-seismic plate to resist seismic events in the rear direction during the seismic process, thereby increasing the anti-seismic area and direction. Furthermore, the second anti-seismic plate can be easily installed or replaced by loosening or tightening the bolts. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the capacitance tester body of this utility model;

[0020] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the diagram;

[0021] Figure 4 This utility model Figure 1 A magnified structural diagram at point B in the diagram.

[0022] In the diagram: 1. Capacitance tester body; 2. Test interface; 3. Anti-vibration protective shell; 4. First anti-vibration plate; 5. Anti-vibration airbag; 6. Limiting anti-vibration strip; 7. Connecting assembly; 71. First Velcro; 72. Second Velcro; 8. Anti-vibration component; 81. Second anti-vibration plate; 82. Bolt; 9. Insert sleeve; 10. Insert groove; 11. Embedded groove; 12. Reinforcing strip; 13. Anti-slip groove; 14. Air inlet; 15. Sealing plug. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1 to 4 As shown, the present invention provides a shockproof capacitance tester, including a capacitance tester body 1, a test interface 2, and a shockproof protective shell 3. The shockproof protective shell 3 is fitted onto the surface of the capacitance tester body 1. The test interface 2 is opened on both sides of the front of the capacitance tester body 1. The top and bottom sides of the inner wall of the shockproof protective shell 3 are provided with first shockproof plates 4. The top and bottom sides of the inner walls of the shockproof protective shell 3 are provided with shockproof airbags 5. The front sides of the top and bottom sides of the inner wall of the shockproof protective shell 3 are adhered with limiting shockproof strips 6. The inner side of the first shockproof plates 4 is fixedly connected with a connecting component 7. The four corners of the back of the capacitance tester body 1 are provided with shockproof components 8.

[0025] refer to Figure 3 The connecting component 7 includes a first Velcro 71, the outer side of which is fixedly connected to the inner side of the first shock absorber 4, and a second Velcro 72 is attached to the inner side of the first Velcro 71. The inner side of the second Velcro 72 is fixedly connected to the top and bottom sides of the capacitance tester body 1.

[0026] As a technical optimization of this utility model, by setting the connecting component 7, when the first shock absorber 4 is damaged after long-term use, the user can tear off the first shock absorber 4, causing the first shock absorber 4 to pull off the corresponding first hook and loop fastener 71, thereby separating it from the corresponding second hook and loop fastener 72. Then, the first hook and loop fastener 71 on the new first shock absorber 4 is pasted with the corresponding second hook and loop fastener 72, thereby quickly replacing the first shock absorber 4.

[0027] refer to Figure 2 The anti-vibration component 8 includes a second anti-vibration plate 81 and a bolt 82. The second anti-vibration plate 81 is located at the four corners of the back of the capacitance tester body 1. The front of the bolt 82 penetrates into the interior of the capacitance tester body 1 and is threadedly connected to the capacitance tester body 1. The second anti-vibration plate 81 is fixedly connected to the capacitance tester body 1 by the bolt 82.

[0028] As a technical optimization of this utility model, by setting the anti-seismic component 8, the second anti-seismic plate 81 can be used to resist seismic events in the rear direction during the seismic process, thereby increasing the seismic area and direction. Furthermore, the second anti-seismic plate 81 can be conveniently installed or replaced by loosening or tightening the bolt 82.

[0029] refer to Figure 4 An insert sleeve 9 is fixedly connected to the outside of the shock-resistant airbag 5. Insert slots 10 are provided on the top and bottom of both sides of the front of the shock-resistant protective shell 3. The insert slots 10 are inserted into the insert sleeve 9.

[0030] As a technical optimization of this utility model, by setting the plug sleeve 9 and the plug slot 10, it is convenient for users to directly pull out the shock-absorbing airbag 5 when they need to install or replace it. This causes the shock-absorbing airbag 5 to separate the plug sleeve 9 from the corresponding plug slot 10. Then, the plug sleeve 9 on the new shock-absorbing airbag 5 can be inserted into the corresponding plug slot 10 to start replacing or installing the shock-absorbing airbag 5.

[0031] refer to Figure 2 and Figure 3 The back of the second anti-seismic plate 81 is provided with an embedding groove 11, and the front of the limiting anti-seismic strip 6 is provided with a reinforcing strip 12. The outer side of the reinforcing strip 12 is adhered to the front side of the top and bottom of the inner wall of the anti-seismic protective shell 3.

[0032] As a technical optimization of this utility model, by setting the embedding groove 11 and the reinforcing strip 12, the volume of the bolt 82 can be hidden by the embedding groove 11, thereby ensuring that the buffering effect of the second anti-vibration plate 81 can be fully utilized. Then, the reinforcing strip 12 can further improve the seismic strength of the limiting anti-vibration strip 6.

[0033] refer to Figure 2 The back surface of bolt 82 is provided with anti-slip grooves 13, and there are several anti-slip grooves 13 distributed in a ring at equal intervals.

[0034] As a technical optimization of this utility model, by setting the anti-slip groove 13, the user can increase the friction between the user's hand and the bolt 82 when the bolt 82 needs to be rotated, and avoid the situation where the bolt 82 slips and it is difficult to apply force when it needs to be rotated.

[0035] refer to Figure 4 An air inlet 14 is provided on one side of the front of the shock-absorbing airbag 5, and a sealing plug 15 is embedded inside the air inlet 14.

[0036] As a technical optimization of this utility model, by setting an air inlet 14, users can directly inject air through the air inlet 14 when they need to inflate the shock-absorbing airbag 5. Furthermore, by setting a sealing plug 15, users can seal the airbag 5 by inserting the sealing plug 15 into the air inlet 14 after inflation, thus preventing gas from escaping.

[0037] The working principle and usage process of this utility model are as follows: When the shock-resistant protective shell 3 is impacted, it first buffers the impact force. Then, when the residual impact vibration frequency is transmitted to the capacitance tester body 1, it is further buffered and shock-resistant by the first shock-resistant plate 4 and the shock-resistant airbag 5, thereby further improving the shock resistance. The first shock-resistant plate 4 is used for shock resistance in the vertical direction, while the shock-resistant airbag 5 is used for shock resistance in the horizontal direction. Then, the adhesive limiting shock-resistant strip 6 can generate shock resistance in the frontal direction for the capacitance tester body 1. During the process, the second anti-vibration plate 81 can also be used to resist seismic activity in the rear direction, increasing the seismic resistance area and direction. The second anti-vibration plate 81 can be easily installed or replaced by loosening or tightening the bolt 82. When the first anti-vibration plate 4 is damaged after long-term use, the user can tear off the first anti-vibration plate 4, causing the first anti-vibration plate 4 to pull off the corresponding first hook and loop fastener 71, thereby separating it from the corresponding second hook and loop fastener 72. Then, the first hook and loop fastener 71 on the new first anti-vibration plate 4 can be pasted with the corresponding second hook and loop fastener 72, thereby quickly replacing the first anti-vibration plate 4.

[0038] In summary, this anti-vibration capacitance tester, by incorporating a first anti-vibration plate 4 and further buffering and resisting vibrations using the first anti-vibration plate 4 and the anti-vibration airbag 5, further improves its vibration resistance. The first anti-vibration plate 4 is used for vertical vibration resistance, while the anti-vibration airbag 5 is used for horizontal vibration resistance. This solves the problem that relying solely on a single anti-vibration insulating casing on the tester surface for vibration resistance results in low overall vibration resistance, thus reducing the effectiveness of the tester and affecting the test results when subjected to external vibrations or impacts.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 process, method, article, or apparatus.

[0040] 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. A shock-resistant capacitance tester, comprising a capacitance tester body (1), a test interface (2), and a shock-resistant protective shell (3), characterized in that: The shock-resistant protective shell (3) is fitted onto the surface of the capacitance tester body (1). The test interface (2) is opened on both sides of the front of the capacitance tester body (1). The top and bottom sides of the inner wall of the shock-resistant protective shell (3) are provided with first shock-resistant plates (4). The top and bottom sides of the inner wall of the shock-resistant protective shell (3) are provided with shock-resistant airbags (5). The front sides of the top and bottom sides of the inner wall of the shock-resistant protective shell (3) are adhered with limiting shock-resistant strips (6). The inner side of the first shock-resistant plate (4) is fixedly connected with a connecting component (7). The four corners of the back of the capacitance tester body (1) are provided with shock-resistant components (8).

2. The anti-vibration capacitance tester according to claim 1, characterized in that: The connecting component (7) includes a first Velcro (71), the outer side of which is fixedly connected to the inner side of the first shock absorber (4), and a second Velcro (72) is attached to the inner side of the first Velcro (71), and the inner side of the second Velcro (72) is fixedly connected to the top and bottom sides of the capacitance tester body (1).

3. The anti-vibration capacitance tester according to claim 1, characterized in that: The anti-vibration component (8) includes a second anti-vibration plate (81) and a bolt (82). The second anti-vibration plate (81) is located at the four corners of the back of the capacitance tester body (1). The front of the bolt (82) penetrates into the interior of the capacitance tester body (1) and is threadedly connected to the capacitance tester body (1). The second anti-vibration plate (81) is fixedly connected to the capacitance tester body (1) by the bolt (82).

4. The anti-vibration capacitance tester according to claim 1, characterized in that: The outer side of the shock-resistant airbag (5) is fixedly connected with a plug sleeve (9), and the top and bottom of both sides of the front of the shock-resistant protective shell (3) are provided with plug slots (10), and the plug slots (10) are plugged into the plug sleeve (9).

5. The anti-vibration capacitance tester according to claim 3, characterized in that: The second anti-seismic plate (81) has an embedded groove (11) on its back side, and the limiting anti-seismic strip (6) has a reinforcing strip (12) on its front side. The outer side of the reinforcing strip (12) is bonded to the front side of the top and bottom of the inner wall of the anti-seismic protective shell (3).

6. The anti-vibration capacitance tester according to claim 3, characterized in that: The surface of the back of the bolt (82) is provided with anti-slip grooves (13), and the anti-slip grooves (13) are provided in a plurality of them and are distributed in a ring at equal intervals.

7. The shockless capacitance tester of claim 1, wherein: An air inlet (14) is provided on one side of the front of the shock-absorbing airbag (5), and a sealing plug (15) is embedded inside the air inlet (14).

Citation Information

Patent Citations

  • Protection test device special for line parameter test

    CN216979154U