Safety protection type high-pressure rubber pipe pressure testing device

Abstract

This utility model provides a safety-protected high-pressure hose pressure testing device, relating to the field of hose pressure testing technology. The device includes a body with a hydraulic pump for conveying liquid inside. A control console is located at the top of the body, and a test chamber is opened on the side of the top of the body near the control console. A cover plate is rotatably connected to one side of the inner wall of the test chamber. The positioning device includes a T-shaped rod, with a clamping block fixedly connected to one end of the rod. By setting up the positioning device, when using the testing device, the end of the hose furthest from the connector tube is placed on the outer surface of the U-shaped block, and the hose end is clamped by the two clamping blocks. This minimizes the possibility of the hose end furthest from the connector tube shaking or swinging during testing, causing impact with the inner wall of the test chamber or loosening of the seal at that end, thus affecting the test results and improving the stability of the testing device during use.

Description

Technical Field

[0001] This utility model relates to the field of hose pressure testing technology, and in particular to a safety-protected high-pressure hose pressure testing device. Background Technology

[0002] The high-pressure hose pressure testing device is a specialized device used to test the pressure resistance, safety, and reliability of high-pressure hoses under different pressure conditions. Its core function is to verify whether the hose meets the design standards and usage requirements by simulating the pressure environment of actual working conditions.

[0003] When using a testing device to pressure test a high-pressure hose, one end of the hose is connected to the inlet pipe of the testing device, while the other end is sealed. Liquid is then poured into the hose and continuously added. However, the sealed end of the hose is usually not connected to the equipment. During the test, the hose is prone to swaying and shaking due to the pressure inside. If it impacts the inner wall of the test chamber, it can damage the inner wall and may loosen the seal at the sealed end, affecting the accuracy of the test results and causing instability in the use of the testing device. Utility Model Content

[0004] The purpose of this invention is to address the problem that high-pressure hoses are usually not connected to the equipment, and during testing, they are prone to swinging and shaking due to the pressure inside. If they collide with the inner wall of the test chamber, they will damage the inner wall of the test chamber and may loosen the seal at the closed end, affecting the accuracy of the test results and resulting in low stability of the test device during use. Therefore, a safety-protected high-pressure hose pressure testing device is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a safety-protected high-pressure hose pressure testing device, comprising a body, an internal hydraulic pump for conveying liquid, a control console at the top of the body, a test chamber at the top of the body near the control console, a cover plate rotatably connected to one side of the inner wall of the test chamber, an observation window on one side of the cover plate, metal mesh on both the inner and outer sides of the observation window, a connector tube fixedly connected to one side of the inner wall of the test chamber, a pin slidably connected to one side of the outer surface of the body, a slot on one side of the cover plate, and a positioning device at one end of the inner wall of the test chamber for restricting the position of the hose head inside the test chamber.

[0006] Furthermore, the positioning device includes a T-shaped rod, a groove is provided on one side of the inner wall of the test chamber, one end of the T-shaped rod slides on the inner wall of the groove, a first screw is rotatably connected to one side of the inner wall of the test chamber, the outer surface of the first screw is threaded to one end of the inner wall of the T-shaped rod, a slide rod is slidably connected to the inner wall of the T-shaped rod, a U-shaped block is fixedly connected to the end of the slide rod away from the T-shaped rod, round rods are slidably connected to both sides of the top of the U-shaped block, a clamping block is fixedly connected to one end of the round rod, a spring is provided on one side of the clamping block, and the two ends of the spring are fixedly connected to one side of the clamping block and one side of the U-shaped block, respectively.

[0007] Furthermore, a second screw is fixedly connected to one side of the slide rod, and a threaded ring is threaded onto the outer surface of the second screw.

[0008] Furthermore, a number of protrusions are fixedly connected to the outer surface of the threaded ring, and the protrusions are distributed circumferentially on the outer surface of the threaded ring.

[0009] Furthermore, a number of rubber protrusions are fixedly connected to one side of the clamping block, and the protrusions are arranged linearly on one side of the clamping block.

[0010] Furthermore, one end of each of the two round rods is fixedly connected to a pull rope, the outer surface of which passes through the interior of the slide rod.

[0011] Furthermore, a rotating shaft is rotatably connected to the top of the U-shaped block, and a coil spring is provided at one end of the rotating shaft. The two ends of the coil spring are fixedly connected to one side of the rotating shaft and one side of the U-shaped block, respectively. A pressure plate is fixedly connected to the outer surface of the rotating shaft.

[0012] Furthermore, a positioning block is fixedly connected to the outer surface of the T-shaped rod, and one side of the positioning block slides on the inner wall of the test chamber.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] In this invention, by setting a positioning device, when using the testing device, the end of the hose furthest from the connector tube is placed on the outer surface of the U-shaped block and clamped by two clamping blocks. This minimizes the possibility of the hose furthest from the connector tube shaking or swinging during the test, causing it to collide with the inner wall of the test chamber or loosen the seal at that end, thus affecting the test results and improving the stability of the testing device during use. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional structural diagram of the body of this utility model;

[0017] Figure 3 This utility model Figure 2 A magnified three-dimensional structural diagram of point A;

[0018] Figure 4 This is a three-dimensional structural diagram of the T-shaped rod of this utility model.

[0019] Legend: 1. Body; 2. Positioning device; 21. Slide groove; 22. T-shaped rod; 23. First screw; 24. Slide rod; 25. U-shaped block; 26. Round rod; 27. Spring; 28. Clamping block; 29. ​​Second screw; 210. Threaded ring; 211. Protrusion; 212. Protruding strip; 213. Pull rope; 214. Rotating shaft; 215. Coil spring; 216. Pressure plate; 217. Positioning block; 3. Control console; 4. Test chamber; 5. Cover plate; 6. Connector tube; 7. Pin. Detailed Implementation

[0020] Example 1, such as Figure 1-2 As shown, a safety-protected high-pressure hose pressure testing device includes a body 1. A hydraulic pump for conveying liquid is installed inside the body 1. A control console 3 is located at the top of the body 1. A test chamber 4 is located on the side of the top of the body 1 near the control console 3. A cover plate 5 is rotatably connected to one side of the inner wall of the test chamber 4. An observation window is located on one side of the cover plate 5. Metal mesh is installed on both the inner and outer sides of the observation window. A connector pipe 6 is fixedly connected to one side of the inner wall of the test chamber 4. A pin 7 is slidably connected to one side of the outer surface of the body 1. A slot is located on one side of the cover plate 5. A positioning device 2 is located at one end of the inner wall of the test chamber 4 to restrict the position of the hose end inside the test chamber 4. When using the pressure testing device, one end of the high-pressure hose is connected to the connector pipe 6 on one side of the inner wall of the test chamber 4. Then, the hydraulic pump inside the body 1 is operated by the control console 3 to control the liquid to enter the high-pressure hose. Observe the liquid output from the other end of the high-pressure hose. When there are no air bubbles in the liquid, seal the other end of the hose with a seal. At this time, the hose is filled with liquid. Push the cover plate 5 to rotate and seal one end of the test chamber 4. Then push the pin 7 to move and insert the pin 7 into the slot on one side of the cover plate 5 to fix the position of the cover plate 5. Then control the hydraulic pump to increase the liquid pressure at a certain rate. Observe the pressure change through the pressure gauge on the control panel 3. The operator observes the appearance of the hose through the observation window. When the hose shows bulging of the outer rubber layer, leakage at the joint, or excessive length change, it is judged as permanent deformation. Continue to slowly increase the pressure until the hose ruptures. Observe the highest pressure at the time of rupture through the pressure gauge. The cover plate 5 and the metal mesh at the observation window can block the liquid splash and fragments generated by the rupture. Finally, move the pin 7 to open the cover plate 5 and take out the hose to complete the test.

[0021] Reference Figure 1-4As shown in this embodiment: the positioning device 2 includes a T-shaped rod 22, a groove 21 is provided on one side of the inner wall of the test chamber 4, one end of the T-shaped rod 22 slides on the inner wall of the groove 21, a first screw 23 is rotatably connected to one side of the inner wall of the test chamber 4, the outer surface of the first screw 23 is threaded to one end of the inner wall of the T-shaped rod 22, a slide rod 24 is slidably connected to the inner wall of the T-shaped rod 22, a U-shaped block 25 is fixedly connected to the end of the slide rod 24 away from the T-shaped rod 22, round rods 26 are slidably connected to both sides of the top of the U-shaped block 25, and a clamping block 2 is fixedly connected to one end of the round rod 26. 8. A spring 27 is provided on one side of the clamping block 28. The two ends of the spring 27 are fixedly connected to one side of the clamping block 28 and one side of the U-shaped block 25, respectively. By setting the clamping block 28, when the high-pressure hose is pressure tested using the testing device, after connecting one end of the high-pressure hose to the connector pipe 6 on one side of the inner wall of the test chamber 4, the slide rod 24 is pulled to slide outward or inward on the inner wall of the T-shaped rod 22 to adjust the horizontal position of the slide rod 24 so that the U-shaped block 25 is aligned with the position of one end of the hose. Then, the first screw 23 is rotated to control the T-shaped rod 22 to slide on the outer surface of the first screw 23 and the groove 21. Adjust the height of the T-shaped rod 22, the slide rod 24, and the U-shaped block 25 by sliding them up and down, so that the U-shaped block 25 is positioned below the hose head. Then, pull the two round rods 26 on the outer surface of the U-shaped block 25 to control the two clamping blocks 28 to move away from each other and compress the spring 27. Next, place the hose head, the end furthest from the connector tube 6, on the outer surface of the U-shaped block 25. Release the round rods 26, and the spring 27 will restore the original shape, pushing the clamping blocks 28 to move and clamp the two clamping blocks 28 on both sides of the hose head, thus restricting the position of the hose head, the end furthest from the connector tube 6, on the U-shaped block 25. During the test, the clamping block 28 is used to hold the hose end to minimize the possibility of the hose swinging or shaking. By setting the positioning device 2, when using the test device, the hose end away from the connector tube 6 is placed on the outer surface of the U-shaped block 25 and clamped by the two clamping blocks 28. This minimizes the possibility of the hose end away from the connector tube 6 shaking or swinging during the test, causing it to collide with the inner wall of the test chamber 4 or loosen the seal at that end, which would affect the test results and improve the stability of the test device during use.

[0022] Reference Figure 2-4As shown in this embodiment: a second screw 29 is fixedly connected to one side of the slide rod 24, and a threaded ring 210 is threadedly connected to the outer surface of the second screw 29. When the slide rod 24 is pushed to move, the second screw 29 will slide on one side of the inner wall of the T-shaped rod 22. Rotating the threaded ring 210 causes the threaded ring 210 to move on the side of the outer surface of the second screw 29 facing the T-shaped rod 22. Pressing one side of the threaded ring 210 against the outer surface of the T-shaped rod 22 can fix the position of the slide rod 24 inside the T-shaped rod 22. Several protrusions 211 are fixedly connected to the outer surface of the threaded ring 210. The protrusions 211 are circumferentially distributed on the outer surface of the threaded ring 210. By pressing the protrusions 211 on the outer surface of the threaded ring 210 with your hand, it is easier to push the threaded ring 210 to rotate and it is less likely to slip.

[0023] Reference Figure 2-4 As shown in this embodiment: a number of rubber protrusions 212 are fixedly connected to one side of the clamping block 28. The protrusions 212 are arranged linearly on one side of the clamping block 28. By setting the rubber protrusions 212, the friction between the clamping block 28 and the tube head when clamped on the outside of the tube head can be increased, thereby improving the clamping and fixing effect of the clamping block 28 on the tube. One end of each of the two round rods 26 is fixedly connected to a pull rope 213. The outer surface of the pull rope 213 passes through the interior of the slide rod 24. The ends of the two pull ropes 213 away from the round rods 26 are connected to each other. When removing the tube, pulling one end of the pull rope 213 can conveniently control the two round rods 26 to slide away from each other on the inner wall of the U-shaped block 25.

[0024] Reference Figure 2-4 As shown in this embodiment: a rotating shaft 214 is rotatably connected to the top of the U-shaped block 25. A coil spring 215 is provided at one end of the rotating shaft 214. The two ends of the coil spring 215 are fixedly connected to one side of the rotating shaft 214 and one side of the U-shaped block 25, respectively. A pressure plate 216 is fixedly connected to the outer surface of the rotating shaft 214. When the tube head is clamped between the two clamping blocks 28, the pressure plate 216 is pulled upward to control the pressure plate 216 to rotate through the rotating shaft 214 and deform the coil spring 215. After the tube head is located between the two clamping blocks 28, the pressure plate 216 is released and the coil spring 215 returns to its original shape, which will drive... The pressure plate 216 and the rotating shaft 214 rotate downwards, pressing the end of the pressure plate 216 away from the rotating shaft 214 onto the top of the hose head, further restricting the position of the hose head. A positioning block 217 is fixedly connected to the outer surface of the T-shaped rod 22. One side of the positioning block 217 slides on the inner wall of the test chamber 4. When the first screw 23 is rotated to control the T-shaped rod 22 to move up and down, one side of the positioning block 217 will slide on the inner wall of the test chamber 4, further restricting the angle between the T-shaped rod 22 and the test chamber 4, and preventing the angle of the end of the T-shaped rod 22 away from the inner wall of the test chamber 4 from deflecting.

[0025] Working principle: When using the pressure testing device, connect one end of the high-pressure hose to the connector pipe 6 on one side of the inner wall of the test chamber 4. Then, control the hydraulic pump inside the machine body 1 via the control console 3 to control the liquid to enter the high-pressure hose. Observe the liquid output through the other end of the high-pressure hose. When there are no air bubbles in the liquid, use the seal to seal the other end of the hose. At this time, the hose is filled with liquid. Pull the slide bar 24 to slide outward or inward on the inner wall of the T-shaped bar 22 to adjust the horizontal position of the slide bar 24 so that the U-shaped block 25 and the... Align one end of the hose with the desired position. Then, rotate the first screw 23 to control the T-shaped rod 22 to slide up and down on the outer surface of the first screw 23 and the slide groove 21, adjusting the height of the T-shaped rod 22, the slide rod 24, and the U-shaped block 25 so that the U-shaped block 25 is positioned below the hose end. Then, pull the two round rods 26 on the outer surface of the U-shaped block 25 to control the two clamping blocks 28 to move away from each other and compress the spring 27. Finally, place the hose end away from the connector tube 6 on the outer surface of the U-shaped block 25, and release the round rods 26. Spring 27 returns to its original state, pushing clamp 28 to move. The two clamps 28 clamp the two sides of the hose head respectively, restricting the position of the hose head away from the connector tube 6 on the U-shaped block 25. Pushing the cover plate 5 to rotate close one end of the test chamber 4, then pushing the pin 7 to move, inserting the pin 7 into the slot on one side of the cover plate 5 to fix the position of the cover plate 5. Then, control the hydraulic pump to increase the liquid pressure at a certain rate. Observe the pressure change through the pressure gauge on the control panel 3. The operator observes the appearance of the hose through the observation window. When the hose shows bulging of the outer rubber layer, leakage at the connector, or excessive length change, it is judged as permanent deformation. Continue to slowly increase the pressure until the hose ruptures. Observe the highest pressure at the time of rupture through the pressure gauge. During the test, the clamp 28 clamps the hose head to avoid the hose from swinging and shaking during the test. The cover plate 5 and the metal mesh at the observation window can block the liquid splash and fragments generated by the rupture. Finally, move the pin 7 to open the cover plate 5, remove the hose, and complete the test.

[0026] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A safety-protected high-pressure hose pressure testing device, comprising a body (1), characterized in that: The machine body (1) is equipped with a hydraulic pump for conveying liquid. The top of the machine body (1) is equipped with a control console (3). A test chamber (4) is opened on the side of the top of the machine body (1) near the control console (3). A cover plate (5) is rotatably connected to one side of the inner wall of the test chamber (4). An observation window is provided on one side of the cover plate (5). Metal mesh is provided on both the inner and outer sides of the observation window. A connector tube (6) is fixedly connected to one side of the inner wall of the test chamber (4). A pin (7) is slidably connected to one side of the outer surface of the machine body (1). A slot is opened on one side of the cover plate (5). A positioning device (2) is provided at one end of the inner wall of the test chamber (4) to restrict the position of the hose head inside the test chamber (4).

2. The safety-protected high-pressure hose pressure testing device according to claim 1, characterized in that: The positioning device (2) includes a T-shaped rod (22). A groove (21) is provided on one side of the inner wall of the test chamber (4). One end of the T-shaped rod (22) slides on the inner wall of the groove (21). A first screw (23) is rotatably connected to one side of the inner wall of the test chamber (4). The outer surface of the first screw (23) is threaded to one end of the inner wall of the T-shaped rod (22). A slide rod (24) is slidably connected to the inner wall of the T-shaped rod (22). A U-shaped block (25) is fixedly connected to one end of the slide rod (24) away from the T-shaped rod (22). Round rods (26) are slidably connected to both sides of the top of the U-shaped block (25). A clamping block (28) is fixedly connected to one end of the round rod (26). A spring (27) is provided on one side of the clamping block (28). The two ends of the spring (27) are fixedly connected to one side of the clamping block (28) and one side of the U-shaped block (25), respectively.

3. The safety-protected high-pressure hose pressure testing device according to claim 2, characterized in that: A second screw (29) is fixedly connected to one side of the slide rod (24), and a threaded ring (210) is threadedly connected to the outer surface of the second screw (29).

4. The safety-protected high-pressure hose pressure testing device according to claim 3, characterized in that: The outer surface of the threaded ring (210) is fixedly connected with a number of protrusions (211), which are distributed circumferentially on the outer surface of the threaded ring (210).

5. The safety-protected high-pressure hose pressure testing device according to claim 2, characterized in that: A number of rubber protrusions (212) are fixedly connected to one side of the clamping block (28), and the protrusions (212) are arranged linearly on one side of the clamping block (28).

6. The safety-protected high-pressure hose pressure testing device according to claim 5, characterized in that: One end of each of the two round rods (26) is fixedly connected to a pull rope (213), and the outer surface of the pull rope (213) passes through the interior of the slide rod (24).

7. The safety-protected high-pressure hose pressure testing device according to claim 6, characterized in that: The top of the U-shaped block (25) is rotatably connected to a rotating shaft (214), and a coil spring (215) is provided at one end of the rotating shaft (214). The two ends of the coil spring (215) are fixedly connected to one side of the rotating shaft (214) and one side of the U-shaped block (25), respectively. A pressure plate (216) is fixedly connected to the outer surface of the rotating shaft (214).

8. The safety-protected high-pressure hose pressure testing device according to claim 7, characterized in that: The outer surface of the T-shaped rod (22) is fixedly connected to a positioning block (217), and one side of the positioning block (217) slides on one side of the inner wall of the test chamber (4).

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