Water injection assembly for withstand voltage test of insulating boots and gloves

By designing a water control component, the water flow rate is adjusted using a servo motor and a movable disc, solving the problem of water level imbalance in the pressure resistance test of insulating boots and gloves, and achieving a comprehensive improvement in the accuracy and efficiency of the test.

CN224152211UActive Publication Date: 2026-04-21WUHAN HUADIAN MEILUN POWER TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN HUADIAN MEILUN POWER TECH CO LTD
Filing Date
2025-03-31
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In existing technologies, the lack of a water level maintenance structure during the pressure resistance test of insulating boots and gloves leads to inaccurate testing.

Method used

A water control assembly including a servo motor, a movable shaft, a movable disc, and a gradient hole was designed. By controlling the servo motor, the rotation of the movable shaft and the movable disc adjusts the water flow, thereby achieving automatic adjustment and maintaining balance between the water level of the insulating boot gloves and the test bench.

Benefits of technology

This technology has achieved comprehensive accuracy in the withstand voltage test of insulating boots and gloves, reduced the intensity of manual operation, and improved testing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of withstand voltage tests, and discloses a water injection assembly for withstand voltage tests of insulating boots and gloves, which comprises a mounting seat, a fixed shell is fixedly mounted at the top of the mounting seat, and a water control assembly for controlling water outlet flow is arranged on the fixed shell. According to the water injection assembly for the insulating boot and glove withstand voltage test, the water control assembly is arranged, after the water control assembly is used, under starting of a servo motor, a movable shaft, a movable disc and gradual change holes rotate, and when the two gradual change holes communicate with two through holes, water in branch pipes can be introduced into water injection pipes on the two sides; when the water level on one side is higher than the water level on the other side, the servo motor is started, the through hole corresponding to the high water level is blocked by the movable disc, the communication area between the through hole corresponding to the low water level and the gradual change hole is reduced, and water can be injected gradually in a small flow to make the water levels on the two sides flush as much as possible. Therefore, the comprehensive and accurate withstand voltage test of the insulating boots and gloves is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of pressure resistance testing technology, specifically a water injection component for pressure resistance testing of insulating boots and gloves. Background Technology

[0002] Electrical safety equipment includes insulated boots, insulated gloves, and safety helmets. Preventive testing of electrical safety equipment refers to the testing conducted to identify potential hazards in electrical safety equipment and to prevent equipment or personal injury accidents. It is a responsibility and guarantee for the life safety of electrical construction workers, and its importance is self-evident.

[0003] A search revealed Chinese patent CN211955715U, which discloses an automatic water-filling withstand voltage test system applicable to insulating boots, gloves, and safety helmets. This system can test electrical safety equipment sets containing insulating boots, gloves, and helmets, and can simultaneously perform multiple sets of withstand voltage tests. It automatically fills the insulating gloves with water, and the water-filling device does not interfere with the test, reducing the labor intensity of test personnel and effectively improving testing efficiency. This patent implements withstand voltage testing and water filling operations for sets of insulating boots, gloves, and helmets. However, the water-filling component needs to ensure that the water levels of the insulating boots, gloves, and helmets are level with the water level on the test bench to perform voltage breakdown tests. This patent is for automatic water filling and does not include a structure for maintaining the water level. Therefore, a water-filling component for withstand voltage testing of insulating boots and gloves is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a water injection component for pressure resistance testing of insulating boots and gloves, which has the advantage of facilitating the leveling of the insulating boots and gloves with the water level on the test bench.

[0005] To achieve the above-mentioned purpose of facilitating the leveling of the insulating boots and gloves with the water level of the test bench, this utility model provides the following technical solution: a water injection component for pressure resistance testing of insulating boots and gloves, including a mounting base, a fixed shell fixedly mounted on the top of the mounting base, and a water control component for controlling the water flow rate on the fixed shell;

[0006] The water control assembly includes a servo motor, a movable shaft, a movable disc, a gradient hole, and a through hole. The servo motor is fixedly mounted on the side wall of the fixed housing, the movable shaft is fixedly mounted on the output shaft of the servo motor, the movable disc is fixedly mounted on the outer surface of the movable shaft, the gradient hole is opened in the movable disc, and the through hole is opened on both side walls of the fixed housing. The movable disc and the gradient hole are both corresponding to the through hole.

[0007] Furthermore, the movable shaft is rotatably connected to the side wall of the fixed shell, the movable disk is in contact with the inner wall of the fixed shell, and the shape of the gradient hole is horn-shaped.

[0008] Furthermore, the mounting base has a mounting hole, and a water injection pipe communicating with the through hole is fixedly connected to one side wall of the fixed shell.

[0009] Furthermore, a branch pipe communicating with the through hole is fixedly connected to the other side wall of the fixed shell, and a water inlet pipe is fixedly connected to the water inlet end of the branch pipe.

[0010] Furthermore, flanges are fixedly connected to the side walls of both the water injection pipe and the water inlet pipe, and a switch valve is installed on the water inlet pipe.

[0011] Compared with the prior art, this utility model provides a water injection assembly for pressure resistance testing of insulating boots and gloves, which has the following beneficial effects:

[0012] This water injection assembly for the withstand voltage test of insulating boots and gloves, through the setting of a water control component, after the water control component is activated by the servo motor, the movable shaft, movable disk, and gradient holes rotate. When the two gradient holes are connected to the two through holes, water in the branch pipe can be introduced into the water injection pipes on both sides, injecting water into the insulating boots and gloves or the withstand voltage test bench respectively. When the water level on one side is higher than the water level on the other side, the servo motor is activated, causing the movable disk to block the through hole corresponding to the high water level. The connection area between the through hole corresponding to the low water level and the gradient hole is reduced, which can gradually inject water at a small flow rate to make the water levels on both sides as equal as possible, thereby ensuring the comprehensive and accurate withstand voltage test of insulating boots and gloves. Attached Figure Description

[0013] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0014] Figure 2 This is a side perspective sectional view of the structure of this utility model.

[0015] In the diagram: 1 Mounting base, 2 Fixed housing, 3 Water control assembly, 31 Servo motor, 32 Movable shaft, 33 Movable disc, 34 Gradient hole, 35 Through hole, 4 Mounting hole, 5 Water injection pipe, 6 Branch pipe, 7 Inlet pipe, 8 Flange, 9 Switch valve. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-2 A water injection assembly for pressure resistance testing of insulating boots and gloves includes a mounting base 1, a fixing shell 2 fixedly mounted on the top of the mounting base 1, and a mounting hole 4 in the mounting base 1 for mounting the mounting base 1.

[0018] Please see Figure 1-2 The fixed housing 2 is equipped with a water control component 3 for controlling the water flow rate. The water control component 3 includes a servo motor 31, a movable shaft 32, a movable disc 33, a gradient hole 34, and a through hole 35. The servo motor 31 is fixedly installed on the side wall of the fixed housing 2. The movable shaft 32 is fixedly installed on the output shaft of the servo motor 31. The movable shaft 32 is rotatably connected to the side wall of the fixed housing 2 and is used to support both ends of the fixed housing 2. The movable disc 33 is fixedly installed on the outer surface of the movable shaft 32. When the servo motor 31 is started, the movable shaft 32 and the movable disc 33 rotate to gradually perform water injection. The movable disc 33 contacts the inner wall of the fixed housing 2.

[0019] Furthermore, the gradient hole 34 is located in the movable plate 33 and can rotate with the movable plate 33. The gradient hole 34 is horn-shaped, so that the contact area between the gradient hole 34 and the through hole 35 gradually increases or decreases, thereby adjusting the water flow rate. The through hole 35 is located on both sides of the fixed shell 2. The movable plate 33 and the gradient hole 34 are both corresponding to the through hole 35. When the movable plate 33 corresponds to the through hole 35, it can block the aligned through hole 35 and restrict the water filling work of the pipe. When the gradient hole 34 corresponds to the through hole 35, it can allow water to flow smoothly for water filling.

[0020] Meanwhile, a water injection pipe 5 connected to the through hole 35 is fixedly connected to one side wall of the fixed shell 2, which is used to inject water into the insulating boots and gloves and into the withstand voltage test bench. A branch pipe 6 connected to the through hole 35 is fixedly connected to the other side wall of the fixed shell 2, which is used to inject water into the insulating boots and gloves or the withstand voltage test bench respectively. A water inlet pipe 7 is fixedly connected to the water inlet end of the branch pipe 6. Flanges 8 are fixedly connected to the side walls of both the water injection pipe 5 and the water inlet pipe 7, which are used to connect the pipes. A switch valve 9 is installed on the water inlet pipe 7, which can be opened and closed to inject water or not inject water.

[0021] In this embodiment, when the servo motor 31 is started, the movable shaft 32, the movable disk 33, and the gradient hole 34 rotate. The two gradient holes 34 rotate to a position where they are both connected to the through hole 35, that is, as shown... Figure 2As shown, when the switch valve 9 is opened, water flows into the water injection pipe 5 through the branch pipe 6 and the through hole 35. When it is visually observed that the water level on one side of the insulating boot / glove or the withstand voltage test bench is higher than the water level on the other side, the servo motor 31 is started again, so that the movable plate 33 blocks the through hole 35 of the high water level, while the gradient hole 34 of the low water level is still connected to the through hole 35. As the gradient hole 34 rotates and the connection area with the through hole 35 decreases, the water flow rate decreases, so that the water levels on both sides can be made as equal as possible, ensuring the overall accuracy of the withstand voltage test of the insulating boot / glove.

[0022] The beneficial effects of the above embodiments are as follows:

[0023] The water injection assembly for the withstand voltage test of insulating boots and gloves, by setting up a water control component 3, after the water control component 3 is used, the movable shaft 32, the movable disk 33 and the gradient hole 34 rotate under the start of the servo motor 31. When the two gradient holes 34 are connected to the two through holes 35, water in the branch pipe 6 can be introduced into the water injection pipes 5 on both sides, respectively injecting water into the insulating boots and gloves or the withstand voltage test bench. When the water level on one side is higher than the water level on the other side, the servo motor 31 is started, causing the movable disk 33 to block the through hole 35 corresponding to the high water level. The connection area between the through hole 35 corresponding to the low water level and the gradient hole 34 is reduced, which can gradually inject water at a small flow rate to make the water levels on both sides as equal as possible, thereby ensuring the comprehensive accuracy of the withstand voltage test of insulating boots and gloves.

[0024] The servo motor 31 mentioned in the text is electrically connected to the main controller and power supply. The main controller can be a conventional known device such as a computer that performs control, and the existing publicly available power connection technology will not be described in detail in the text.

[0025] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0026] 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 injection assembly for insulation boot glove pressure test, comprising a mounting seat (1), a fixed shell (2) is fixedly installed on the top of the mounting seat (1), characterized in that: The fixed shell (2) is provided with a water control component (3) for controlling the water flow rate; The water control component (3) includes a servo motor (31), a movable shaft (32), a movable disc (33), a gradient hole (34), and a through hole (35). The servo motor (31) is fixedly installed on the side wall of the fixed housing (2). The movable shaft (32) is fixedly installed on the output shaft of the servo motor (31). The movable disc (33) is fixedly installed on the outer surface of the movable shaft (32). The gradient hole (34) is opened in the movable disc (33). The through hole (35) is opened on both side walls of the fixed housing (2). The movable disc (33) and the gradient hole (34) are both corresponding to the through hole (35).

2. The water injection assembly for insulation boot and glove pressure resistance test according to claim 1, characterized in that: The movable shaft (32) is rotatably connected to the side wall of the fixed shell (2), the movable disk (33) is in contact with the inner wall of the fixed shell (2), and the shape of the gradient hole (34) is horn-shaped.

3. The water injection assembly for insulation boot and glove pressure resistance test according to claim 1, characterized in that: The mounting base (1) has a mounting hole (4), and a water injection pipe (5) that communicates with the through hole (35) is fixedly connected to one side wall of the fixed shell (2).

4. The water injection assembly for insulation boot and glove pressure resistance test according to claim 3, characterized in that: The other side wall of the fixed shell (2) is fixedly connected to a branch pipe (6) communicating with the through hole (35), and the water inlet end of the branch pipe (6) is fixedly connected to a water inlet pipe (7).

5. The water injection assembly for insulation boot and glove pressure resistance test according to claim 4, characterized in that: The side walls of the water injection pipe (5) and the water inlet pipe (7) are fixedly connected with flanges (8), and a switch valve (9) is installed on the water inlet pipe (7).

Citation Information

Patent Citations

  • Automatic water injection pressure test system suitable for insulating boots, gloves and safety helmets

    CN211955715U