Hydraulic rubber tube pressure test device

Abstract

The utility model discloses a hydraulic rubber tube pressure test device, which belongs to the technical field of hydraulic rubber tube detection and comprises a rubber tube pressure test support frame used for supporting a hydraulic rubber tube for pressure test, a connecting frame is connected to the inner top wall of the rubber tube pressure test support frame, and a pressure test tube is mounted at one end, far away from the rubber tube pressure test support frame, of the connecting frame. A leakage point test paper frame is slidably connected into the pressure test tube through a sliding groove, a pressure test rubber tube protection frame is arranged in the leakage point test paper frame, leakage point test paper used for detecting the leakage point position of a rubber tube is installed between the leakage point test paper frame and the pressure test rubber tube protection frame, and a leakage liquid concentration chamber is installed at the bottom of the pressure test tube. According to the leakage detection device, the position of a leakage point can be accurately detected, and potential safety hazards are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic hose testing technology, and in particular, a hydraulic hose pressure testing device. Background Technology

[0002] Hydraulic hoses play a crucial role in hydraulic systems. To ensure the safety and reliability of hydraulic hoses during use, pressure testing is necessary. Existing hydraulic hose pressure testing devices can meet basic pressure testing requirements, but they are not precise enough to pinpoint leak locations. They can only roughly determine the area of ​​leakage but cannot accurately locate the specific leak, increasing safety risks.

[0003] A search revealed a Chinese patent document (authorization announcement number CN113092020B), which relates to a hydraulic hose airtightness testing device. The device includes an air compressor, a placement assembly, a buffer tank, and a detection assembly. The placement assembly holds the hydraulic hose to be tested, and the detection assembly is located on both sides of the placement assembly. The detection assembly is used to detect whether the hydraulic hose being tested leaks. The placement assembly includes a placement frame, a fixed placement rod, and a movable placement rod. The placement frame is n-shaped, the fixed placement rod is rotatably mounted on the lower part of the placement frame, and the movable placement rod is located above the fixed placement rod and slides longitudinally along the height of the placement frame. The detection assembly includes several flexible detection strips, divided into two groups, which are respectively located on the front and rear sides of the placement frame. The purpose of this invention is to solve or at least alleviate the problem of difficulty in locating leaks when hydraulic hoses leak during pressure testing, providing a hydraulic hose airtightness testing device. This device can meet basic pressure testing requirements; however, the leak point is not precise enough, only allowing for a general assessment of the leak area, but making it difficult to accurately pinpoint the specific leak location, increasing safety hazards. Utility Model Content

[0004] The purpose of this invention is to provide a hydraulic hose pressure testing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic hose pressure testing device, comprising a hose pressure testing support frame for supporting the hydraulic hose pressure testing, a connecting frame connected to the inner top wall of the hose pressure testing support frame, a pressure testing tube installed at the end of the connecting frame away from the hose pressure testing support frame, a leak test paper holder slidably connected inside the pressure testing tube via a sliding groove, a pressure testing hose protective frame provided inside the leak test paper holder, a leak test paper for detecting the location of hose leaks installed between the leak test paper holder and the pressure testing hose protective frame, a leakage collection chamber installed at the bottom of the pressure testing tube, and a collection tube connected to the side of the leakage collection chamber.

[0006] Preferably, a fixing block and a second telescopic rod are installed on the transverse inner wall of the hose pressure test support frame. The end of the fixing block away from the hose pressure test support frame is connected to a first telescopic rod. A sealing claw is connected to the end of the first telescopic rod away from the first telescopic rod. A sealing claw is also connected to the end of the second telescopic rod away from the hose pressure test support frame. A third telescopic rod is installed on the transverse inner wall of the hose pressure test support frame.

[0007] Preferably, a fixing plate is installed on the side of the hose pressure test support frame, and a sliding column is connected to the side of the fixing plate.

[0008] Preferably, the end of the sliding column away from the fixed plate is connected to a pressure relief baffle by a strong spring, and a hollow column is installed on the side of the pressure relief baffle, with the sliding column slidably installed inside the hollow column.

[0009] Preferably, a pressure relief column is installed on the side of the pressure relief baffle, and a pressure-testing hose is provided on the outside of the pressure relief column.

[0010] Preferably, a hydraulic chamber is provided on the side of the hose pressure test support frame, a hydraulic thruster is installed on the top of the hydraulic chamber, and a buffer chamber is connected to the side of the hydraulic chamber through a delivery pipe.

[0011] Preferably, a connecting pipe is connected to the side of the buffer chamber, and the connecting pipe is connected to the rubber tube to be tested.

[0012] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0013] This hydraulic hose pressure testing device, thanks to the structure of the test tube, allows test hydraulic fluid from the hydraulic chamber to enter the hose to be tested through the delivery pipe, buffer chamber, and connecting pipe when the hydraulic thruster is activated. If there is a leak in the hose, the test hydraulic fluid will come into contact with the leak test paper through the leak point. After a period of time, the leak test paper holder is removed through the slide, and the leak test paper is taken out for leak detection. This structure can accurately detect the location of leaks and reduce safety hazards.

[0014] This hydraulic hose pressure testing device benefits from the structure of the pressure relief column. One end of the hose to be tested is connected to the connecting pipe, and the other end is connected to the pressure relief column. The first, second, and third telescopic rods extend, and the sealing claws fix the hose to be tested to the pressure relief column, sealing the hose. If the pressure inside the hose is too high, the hydraulic fluid pushes the pressure relief column to release the pressure, preventing an explosion. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is a schematic diagram of the pressure relief column of this utility model;

[0019] Figure 4 This is a schematic diagram of the test tube of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] In the diagram: 1. Hydraulic chamber; 101. Hydraulic thruster; 102. Delivery pipe; 103. Buffer chamber; 104. Connecting pipe; 2. Leakage collection chamber; 201. Collection pipe; 3. Pressure relief baffle; 301. Hollow column; 302. Sliding column; 303. Fixing plate; 304. Test hose; 305. Pressure relief column; 4. Hose test support frame; 401. Fixing block; 402. First telescopic rod; 403. Second telescopic rod; 404. Sealing clamp; 405. Third telescopic rod; 5. Test tube; 501. Slide groove; 502. Leakage test paper holder; 503. Test hose protective frame; 504. Leakage test paper; 505. Connecting frame. Detailed Implementation

[0022] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0023] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0024] like Figures 1 to 4The hydraulic hose pressure testing device shown includes a hose pressure testing support frame 4 for supporting the hydraulic hose during pressure testing. A connecting frame 505 is connected to the inner top wall of the hose pressure testing support frame 4. A test tube 5 is installed at the end of the connecting frame 505 away from the hose pressure testing support frame 4. A leak test paper holder 502 is slidably connected inside the test tube 5 via a slide groove 501. A test hose protective frame 503 is provided inside the leak test paper holder 502. A device for detecting the leak test hose is installed between the leak test paper holder 502 and the test hose protective frame 503. The leak test paper 504 is located at the leak point of the tube. The bottom of the test tube 5 is equipped with a leak collection chamber 2. The side of the leak collection chamber 2 is connected to a collection pipe 201. If there is a leak in the test tube 304, the test hydraulic fluid will come into contact with the leak test paper 504 through the leak point. After a period of time, the leak test paper holder 502 is taken out through the slide 501, and the leak test paper 504 is taken out for leak detection. If the leak is large, the hydraulic fluid will enter the leak collection chamber 2 through the outlet below the test tube 5 and be recovered from the collection pipe 201.

[0025] A fixing block 401 and a second telescopic rod 403 are installed on the transverse inner wall of the hose pressure test support frame 4. The end of the fixing block 401 away from the hose pressure test support frame 4 is connected to a first telescopic rod 402. The end of the first telescopic rod 402 away from the first telescopic rod 402 is connected to a sealing claw 404. The end of the second telescopic rod 403 away from the hose pressure test support frame 4 is also connected to a sealing claw 404. A third telescopic rod 405 is installed on the transverse inner wall of the hose pressure test support frame 4. One end of the hose 304 to be tested is connected to the connecting pipe 104, and the other end is connected to the pressure relief column 305. When the first telescopic rod 402, the second telescopic rod 403, and the third telescopic rod 405 extend, the sealing claw 404 fixes the hose 304 to be tested to the pressure relief column 305, thus sealing the hose 304 to be tested.

[0026] A fixing plate 303 is installed on the side of the hose pressure test support frame 4. A sliding column 302 is connected to the side of the fixing plate 303. The end of the sliding column 302 away from the fixing plate 303 is connected to a pressure relief baffle 3 through a strong spring. A hollow column 301 is installed on the side of the pressure relief baffle 3. The sliding column 302 is slidably installed inside the hollow column 301.

[0027] A pressure relief column 305 is installed on the side of the pressure relief baffle 3, and a pressure-testing hose 304 is provided on the outside of the pressure relief column 305.

[0028] A hydraulic chamber 1 is provided on the side of the hose pressure test support frame 4. A hydraulic thruster 101 is installed on the top of the hydraulic chamber 1. A buffer chamber 103 is connected to the side of the hydraulic chamber 1 through a delivery pipe 102. A connecting pipe 104 is connected to the side of the buffer chamber 103. The connecting pipe 104 is connected to the hose 304 to be tested. When the hydraulic thruster 101 is turned on, the test hydraulic fluid in the hydraulic chamber 1 enters the hose 304 to be tested through the delivery pipe 102, the buffer chamber 103 and the connecting pipe 104.

[0029] Main structural material: The main frame of the pressure testing device is typically made of high-strength steel, such as alloy steel. This material possesses extremely high strength and rigidity, capable of withstanding the high pressure generated during the test without deformation. For example, 42CrMo alloy steel has high strength and good toughness, exhibiting stability under high pressure. For sealing components, high-performance rubber or special synthetic materials can be selected. These materials must possess good elasticity and pressure resistance, maintaining sealing performance under high pressure to prevent liquid leakage. For example, fluororubber has excellent high-temperature resistance, oil resistance, and pressure resistance, making it suitable for seals in hydraulic hose pressure testing devices.

[0030] Material of connecting components: Fittings for hydraulic hoses are generally made of high-quality carbon steel or stainless steel. Carbon steel fittings have high strength and relatively low cost, but may require surface treatment such as galvanizing or chrome plating in some corrosive environments. Stainless steel fittings have better corrosion resistance and are suitable for various harsh environments. For example, 304 stainless steel fittings have good corrosion resistance and strength, ensuring reliable connections.

[0031] Working principle

[0032] In use, the hydraulic hose pressure testing device first connects one end of the hose 304 to be tested to the connecting pipe 104 and the other end to the pressure relief column 305. The first telescopic rod 402, the second telescopic rod 403, and the third telescopic rod 405 extend, and the sealing jaws 404 fix the hose 304 to be tested to the pressure relief column 305, sealing the hose 304. Then, the hydraulic thruster 101 is activated, and the test hydraulic fluid in the hydraulic chamber 1 enters through the delivery pipe 102, the buffer chamber 103, and the connecting pipe 104. If there is a leak in the test hose 304, the test hydraulic fluid will come into contact with the leak test paper 504 through the leak. After a period of time, the leak test paper holder 502 is taken out through the slide 501, and the leak test paper 504 is taken out for leak detection. If the leak is large, the hydraulic fluid will enter the leak collection chamber 2 through the outlet below the test tube 5 and be recovered from the collection tube 201. If the pressure in the test hose 304 is too high, the hydraulic fluid will push the pressure relief column 305 to release the pressure and prevent an explosion.

[0033] It should be noted that in this article, relational terms such as one and two are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0034] 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 hydraulic hose pressure testing device comprising a hose pressure testing support frame (4) for supporting hydraulic hose pressure testing, characterized in that: The inner top wall of the hose pressure test support frame (4) is connected to a connecting frame (505). A test tube (5) is installed at the end of the connecting frame (505) away from the hose pressure test support frame (4). A leak test paper holder (502) is slidably connected inside the test tube (5) through a slide groove (501). A test hose protection frame (503) is provided inside the leak test paper holder (502). A leak test paper (504) for detecting the location of the hose leak is installed between the leak test paper holder (502) and the test hose protection frame (503). A leak collection chamber (2) is installed at the bottom of the test tube (5). A collection tube (201) is connected to the side of the leak collection chamber (2).

2. The hydraulic hose pressure testing device of claim 1, wherein: The inner transverse wall of the hose pressure test support frame (4) is equipped with a fixing block (401) and a second telescopic rod (403). The end of the fixing block (401) away from the hose pressure test support frame (4) is connected to a first telescopic rod (402). The end of the first telescopic rod (402) away from the first telescopic rod (402) is connected to a sealing claw (404). The end of the second telescopic rod (403) away from the hose pressure test support frame (4) is also connected to a sealing claw (404). The inner transverse wall of the hose pressure test support frame (4) is equipped with a third telescopic rod (405).

3. The hydraulic hose pressure testing device according to claim 1, characterized in that: A fixing plate (303) is installed on the side of the hose pressure test support frame (4), and a sliding column (302) is connected to the side of the fixing plate (303).

4. The hydraulic hose pressure testing device of claim 3, wherein: The end of the sliding column (302) away from the fixed plate (303) is connected to a pressure relief baffle (3) by a strong spring. A hollow column (301) is installed on the side of the pressure relief baffle (3), and the sliding column (302) is slidably installed inside the hollow column (301).

5. The hydraulic hose pressure testing device of claim 4, wherein: The pressure relief baffle (3) is equipped with a pressure relief column (305) on its side, and a pressure-testing hose (304) is provided on the outside of the pressure relief column (305).

6. The hydraulic hose pressure testing device of claim 1, wherein: The side of the hose pressure test support frame (4) is provided with a hydraulic chamber (1), the top of the hydraulic chamber (1) is equipped with a hydraulic thruster (101), and the side of the hydraulic chamber (1) is connected to a buffer chamber (103) through a delivery pipe (102).

7. The hydraulic hose pressure testing device of claim 6, wherein: The side of the buffer chamber (103) is connected to a connecting pipe (104), which is connected to the pressure tube (304) to be tested.

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