A kind of pressure test equipment suitable for precision spindle seal

By using electronic pressure gauges, rubber hoses, and quick-connect fittings in the spindle seal pressure resistance testing equipment, the problems of large equipment size and inaccurate testing have been solved, achieving miniaturization and high-precision testing.

CN224594145UActive Publication Date: 2026-08-04XINYAN (HANGZHOU) PRECISION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINYAN (HANGZHOU) PRECISION TECHNOLOGY CO LTD
Filing Date
2025-09-30
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing spindle seal pressure resistance testing equipment is bulky, has poor portability, contains redundant structures, and has low testing accuracy, making it difficult to obtain readings.

Method used

The design incorporates an electronic pressure gauge, rubber tubing, quick-connect fittings, and valves to enable convenient connection and accurate detection of the spindle fluid.

Benefits of technology

It significantly reduces the size of the device, improves portability, and enhances testing accuracy, resulting in more precise readings.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of be applicable to precision main shaft sealing pressure resistance test equipment, it is related to test equipment technical field, including main shaft body, the top end of main shaft body is close to the outside and is equipped with main shaft fluid outlet, the top end of main shaft fluid outlet is installed with first trachea, the one end of first trachea away from main shaft fluid outlet is installed with electronic pressure gauge, the top end of main shaft body is close to the outside and is equipped with main shaft fluid inlet in main shaft fluid outlet, the top end of main shaft fluid inlet is installed with second trachea, valve is installed on the inside of second trachea and extends to outer wall, the top end of second trachea is installed with fast plug connector, compared with the precision main shaft sealing pressure resistance test equipment of existing, not only greatly reduce the volume of test equipment, so that its portability is promoted, and can be more accurate reading, test accuracy is higher.
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Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a pressure resistance testing device suitable for precision spindle seals. Background Technology

[0002] Precision spindle seal pressure resistance testing equipment is mainly used to test the reliability of the spindle's sealing performance under high pressure environment. It simulates actual working conditions by applying pressure or vacuum environment to evaluate its sealing performance and pressure resistance. It usually adopts mainstream testing methods such as pneumatic method and vacuum method, and judges the leakage situation by monitoring pressure changes.

[0003] Existing spindle seal pressure resistance testing equipment is bulky, relatively unportable, and contains unnecessary redundant structures. Furthermore, it typically uses pointer-type pressure gauges to display pressure values, resulting in low testing accuracy and difficulty in reading the values. Therefore, we propose a pressure resistance testing device suitable for precision spindle seals. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies. Existing spindle seal pressure resistance testing equipment is bulky, relatively unportable, has unnecessary redundant structures, and generally uses pointer-type pressure gauges to display pressure values, resulting in low testing accuracy and difficulty in reading the values.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pressure resistance testing device for precision spindle seals includes a spindle body. A spindle fluid outlet is located near the outer side of the top of the spindle body. A first air pipe is installed at the top of the spindle fluid outlet. An electronic pressure gauge is installed at the end of the first air pipe furthest from the spindle fluid outlet. A spindle fluid inlet is located near the spindle fluid outlet at the top of the spindle body. A second air pipe is installed at the top of the spindle fluid inlet. A valve is installed inside the second air pipe extending to its outer wall. A quick-connect fitting is installed at the top of the second air pipe.

[0007] In a preferred embodiment of this utility model, the main shaft body is connected to the main shaft fluid outlet, and the main shaft body is connected to the main shaft fluid inlet.

[0008] The technical effect of adopting the above-mentioned further solution is that by connecting the main spindle body to the main spindle fluid outlet and connecting the main spindle body to the main spindle fluid inlet, the main spindle fluid inlet can inject fluid into the main spindle body and discharge it through the main spindle fluid outlet.

[0009] As a preferred embodiment of this utility model, the first air tube is connected to the fluid outlet of the main shaft, and the first air tube is connected to an electronic pressure gauge.

[0010] The technical effect of adopting the above-mentioned further solution is that by connecting the first air pipe to the fluid outlet of the main shaft and connecting the first air pipe to the electronic pressure gauge, the electronic pressure gauge can detect the pressure through the first air pipe.

[0011] As a preferred embodiment of this utility model, the second air tube is connected to the fluid inlet of the main shaft, and the second air tube is connected to the quick-connect fitting.

[0012] The technical effect of adopting the above-mentioned further solution is that by connecting the second air pipe to the fluid inlet of the main spindle and connecting the second air pipe to the quick-connect fitting, the operator can inject compressed air into the main spindle body through the quick-connect fitting and the second air pipe.

[0013] As a preferred embodiment of this utility model, both the first trachea and the second trachea are made of rubber.

[0014] The technical advantages of adopting the above-mentioned further solution are: the first and second air tubes made of rubber can be folded and stored better, saving more space and having a longer service life.

[0015] As a preferred embodiment of this utility model, the valve is adapted to the second air pipe.

[0016] The technical effect of adopting the above-mentioned further solution is that, by adapting the valve to the second air tube, the operator can rotate the valve to close the second air tube.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] In this invention, the design of the first air tube, electronic pressure gauge, second air tube, valve, and quick-connect connector significantly reduces the size of the testing equipment, improving its portability, and allows for more precise overhead viewing, resulting in higher testing accuracy. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall structure of a precision spindle seal pressure resistance testing device provided by this utility model;

[0020] Figure 2 A schematic diagram of the first air tube structure for a precision spindle seal pressure resistance testing device provided by this utility model;

[0021] Figure 3 This utility model provides a anatomical diagram of a valve structure suitable for a precision spindle seal pressure resistance testing device.

[0022] Legend: 1. Main spindle body; 2. Main spindle fluid outlet; 201. First air pipe; 3. Electronic pressure gauge; 4. Main spindle fluid inlet; 401. Second air pipe; 402. Valve; 403. Quick connector. Detailed Implementation

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

[0024] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] Example 1

[0028] like Figure 1-3As shown, this utility model provides a technical solution: a pressure resistance testing device for a precision spindle seal, comprising a spindle body 1, a spindle fluid outlet 2 located near the outer side of the top of the spindle body 1, the spindle fluid outlet 2 discharging fluid from inside the spindle body 1, a first air pipe 201 installed at the top of the spindle fluid outlet 2, an electronic pressure gauge 3 installed at the end of the first air pipe 201 away from the spindle fluid outlet 2, the electronic pressure gauge 3 testing the pressure inside the spindle body 1 through the first air pipe 201, a spindle fluid inlet 4 located near the spindle fluid outlet 2 at the top of the spindle body 1, the spindle fluid inlet 4 delivering liquid into the spindle body 1, a second air pipe 401 installed at the top of the spindle fluid inlet 4, a valve 402 installed on the outer wall of the second air pipe 401, the valve 402 closing the second air pipe 401, and a quick-connect fitting 403 installed at the top of the second air pipe 401, the quick-connect fitting 403 allowing air to enter the second air pipe 401.

[0029] Example 2

[0030] like Figure 1-3 As shown, the main spindle body 1 is connected to the main spindle fluid outlet 2 and the main spindle body 1 is connected to the main spindle fluid inlet 4. Through the connection between the main spindle body 1 and the main spindle fluid outlet 2 and the main spindle body 1 and the main spindle fluid inlet 4, the main spindle fluid inlet 2 can inject fluid into the main spindle body 1 and discharge it through the main spindle fluid outlet 4.

[0031] The first air tube 201 is connected to the main shaft fluid outlet 2 and the first air tube 201 is connected to the electronic pressure gauge 3. Through the connection between the first air tube 201 and the main shaft fluid outlet 2 and the first air tube 201 and the electronic pressure gauge 3, the electronic pressure gauge 3 can detect the pressure through the first air tube 201.

[0032] The second air pipe 401 is connected to the main spindle fluid inlet 4 and the second air pipe 401 is connected to the quick connector 403. Through the connection between the second air pipe 401 and the main spindle fluid inlet 4 and the second air pipe 401 and the quick connector 403, the operator can inject compressed air into the main spindle body 1 through the quick connector 403 and the second air pipe 401.

[0033] Both the first air tube 201 and the second air tube 401 are made of rubber. Because of the rubber material, the first air tube 201 and the second air tube 401 can be folded and stored well, saving more space and having a longer service life.

[0034] Valve 402 is adapted to the second air tube 401. By adapting valve 402 to the second air tube 401, the operator can rotate valve 402 to close the second air tube 401.

[0035] The working process of this utility model is as follows: When using a precision spindle seal pressure resistance testing device, the operator first connects the spindle fluid outlet 2 to the electronic pressure gauge 3 through the first air pipe 201, and connects the spindle fluid inlet 4 to the second air pipe 401. Compressed air is injected into the second air pipe 401 through the quick-connect connector 403. After the electronic pressure gauge 3 displays that the target pressure has been reached, the valve 402 is closed to form a sealed cavity. At this time, the sealing effect of the liquid flow channel of the spindle body 1 can be judged by the change in the pressure displayed on the electronic pressure gauge 3 over a period of time, and the reading can be taken more accurately. Compared with the existing precision spindle seal pressure resistance testing device, this device not only significantly reduces its size, improving its portability, but also allows for more precise top-down viewing, resulting in higher testing accuracy.

[0036] 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 precision spindle seal pressure test apparatus suitable for use with a precision spindle body (1) comprising: a spindle body (1) characterized by: The spindle body (1) has a spindle fluid outlet (2) near the outer side at the top. A first air pipe (201) is installed at the top of the spindle fluid outlet (2). An electronic pressure gauge (3) is installed at the end of the first air pipe (201) away from the spindle fluid outlet (2). A spindle fluid inlet (4) is opened at the top of the spindle body (1) near the spindle fluid outlet (2). A second air pipe (401) is installed at the top of the spindle fluid inlet (4). A valve (402) is installed inside the second air pipe (401) extending to the outer wall. A quick-connect fitting (403) is installed at the top of the second air pipe (401).

2. The pressure test equipment for the precision spindle seal according to claim 1, wherein: The main shaft body (1) is connected to the main shaft fluid outlet (2), and the main shaft body (1) is connected to the main shaft fluid inlet (4).

3. The pressure test equipment for the precision spindle seal according to claim 1, wherein: The first air tube (201) is connected to the main shaft fluid outlet (2) and the first air tube (201) is connected to the electronic pressure gauge (3).

4. The pressure test equipment for the precision spindle seal according to claim 1, wherein: The second air tube (401) is connected to the main shaft fluid inlet (4), and the second air tube (401) is connected to the quick connector (403).

5. The pressure test equipment for the precision spindle seal according to claim 1, wherein: Both the first trachea (201) and the second trachea (401) are made of rubber.

6. The pressure test equipment for precision spindle seal according to claim 1, wherein: The valve (402) is adapted to the second air pipe (401).