Hydraulic valve pressure detection mechanism

Abstract

The utility model discloses a hydraulic valve pressure detection mechanism, which comprises a detection frame, a test tube, a pressure measurement assembly, a one-way water injection assembly, a pressure measurement sensing assembly, a water tank, a circulating pump and a controller, and is characterized in that the test tube is fixedly arranged in the detection frame, the pressure measurement assembly is fixedly arranged in the detection frame, and the one-way water injection assembly is fixedly arranged in the detection frame; the contracted end of the pressure measuring assembly extends into the testing pipe, the one-way water injection assembly is fixedly installed in the testing pipe, the pressure measuring sensing assembly is fixedly installed at the top of the testing pipe, the water tank is fixedly installed at the front end of the detection frame, the circulating pump is fixedly installed at the bottom of the detection frame, and the controller is fixedly installed on the testing pipe. The hydraulic valve has the pressure detection function, is used for detecting the hydraulic capacity which can be borne by the hydraulic valve and detecting the pressure bearing capacity of the hydraulic valve, and avoids leakage of fluid in the hydraulic valve due to poor sealing performance caused by insufficient pressure bearing capacity.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic valve pressure detection, in particular to a hydraulic valve pressure detection mechanism. Background Art

[0002] Hydraulic valve pressure testing is an important step in evaluating valve performance, safety, and whether it meets design and application specifications. The hydraulic valve testing project covers pressure testing and sealing performance testing to avoid the hydraulic valves produced having low hydraulic pressure resistance, which leads to loose sealing performance. Loose sealing first means that the valve cannot achieve the expected sealing effect, which will cause the internal fluid of the hydraulic system to leak. External leakage will pollute the environment, cause the ground to be slippery, and affect the safety of the workplace; internal leakage will reduce the overall efficiency of the system and increase operating costs, because the fluid needs to be continuously replenished to maintain the system pressure. Liquid leakage in the pipeline is flammable and may cause fire or explosion when encountering high temperature sources or sparks. Leaked hazardous substances may also cause health hazards if they touch human skin or eyes.

[0003] Therefore, how to provide a hydraulic valve pressure detection mechanism is a problem that technical personnel in this field need to solve urgently. Utility Model Content

[0004] One purpose of the utility model is to propose a hydraulic valve pressure detection mechanism. The utility model has pressure detection, which is used to detect the hydraulic capacity that the hydraulic valve can withstand, and to detect the pressure-bearing capacity of the hydraulic valve to avoid insufficient pressure-bearing capacity, resulting in poor sealing performance and leakage of fluid in the hydraulic valve.

[0005] According to an embodiment of the utility model, a hydraulic valve pressure detection mechanism includes a detection frame, a test tube, a pressure measuring assembly, a one-way water injection assembly, a pressure measuring sensing assembly, a water tank, a circulation pump and a controller, wherein the test tube is fixedly installed in the detection frame, the pressure measuring assembly is fixedly installed in the detection frame, the retracted end of the pressure measuring assembly extends into the test tube, the one-way water injection assembly is fixedly installed in the test tube, the pressure measuring sensing assembly is fixedly installed on the top of the test tube, the water tank is fixedly installed at the front end of the detection frame, the circulation pump is fixedly installed at the bottom of the detection frame, and the controller is fixedly installed on the test tube.

[0006] Furthermore, a connecting plate is fixedly provided at the front end of the test tube, one end of a first water inlet pipe is fixedly provided at one end of the circulation pump, the other end of the first water inlet pipe is fixedly connected to the water tank, one end of a second water inlet pipe is fixedly provided at the other end of the circulation pump, the second water inlet pipe is connected to the one-way water injection assembly through a hose, and a hoop is fixedly provided on the side of the controller facing the test tube, wherein the hoop is sleeved on the test tube.

[0007] Furthermore, the pressure measuring assembly includes a rubber sheath, a piston column and a hydraulic telescopic rod, wherein the rubber sheath is fixedly mounted on the piston column, and the piston column is fixedly mounted on the telescopic end of the hydraulic telescopic rod.

[0008] Furthermore, the rubber sheath is located in one end of the test tube away from the connecting disk, the piston column is located in one end of the test tube away from the connecting disk, the retracted end of the hydraulic telescopic rod extends into the one end of the test tube away from the connecting disk, and the hydraulic telescopic rod is fixedly mounted on the detection frame.

[0009] Furthermore, the one-way water injection assembly includes a side plate, a spring seat, a compression spring, a float and a water injection pipe, wherein one end of the side plate is fixedly mounted on the inner wall of the test tube, the spring seat is fixedly mounted on the other end of the side plate, one end of the compression spring is fixedly mounted on the spring seat, the float is fixedly mounted on the other end of the compression spring, and the water injection pipe is fixedly mounted on the test tube.

[0010] Furthermore, the compression spring is located inside the side plate, the float is located inside the side plate, and the float is located directly below the outlet of the water injection pipe.

[0011] Furthermore, the pressure sensing assembly includes a pressure measuring tube, a leakage ring, a telescopic traction rod, a tension spring and a pressure measuring piston, wherein the pressure measuring tube is fixedly mounted on the test tube, the leakage ring is fixedly mounted on the inner wall of the pressure measuring tube, the bottom of the telescopic traction rod is fixedly mounted on the leakage ring, the bottom of the telescopic traction rod is fixedly mounted on, one end of the tension spring is fixedly mounted on the leakage ring, the other end of the tension spring is fixedly mounted on the leakage ring, and the pressure measuring piston is slidably mounted in the pressure measuring tube.

[0012] Furthermore, the pressure sensing assembly also includes a magnetic column and a coil group, the bottom of the magnetic column is fixedly installed on the top of the pressure measuring piston, and the coil group is fixedly installed in the pressure measuring tube.

[0013] The beneficial effects of the utility model are:

[0014] The utility model has pressure detection, which is used to detect the hydraulic capacity that the hydraulic valve can withstand, and detects the pressure bearing capacity of the hydraulic valve to avoid poor sealing performance due to insufficient pressure bearing capacity, which leads to leakage of fluid in the hydraulic valve.

[0015] The utility model increases the water pressure in the test tube, and water enters the pressure measuring tube. The water passes through the leakage ring, and the water pushes the pressure measuring piston upward according to the water pressure in the test tube. The pressure measuring piston stretches the tension spring, and the pressure measuring piston drives the magnetic column to move upward, so that the magnetic column enters the coil group. The magnetic column and the coil group generate electrical signals to detect the size of the hydraulic pressure, and the electrical signals are transmitted to the controller, thereby detecting the pressure bearing capacity of the hydraulic valve device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of a hydraulic valve pressure detection mechanism proposed by the utility model from a first perspective;

[0018] Figure 2 This is a second-view overall structural diagram of a hydraulic valve pressure detection mechanism proposed by the utility model;

[0019] Figure 3 A hydraulic valve pressure detection mechanism proposed by the utility model Figure 2 A magnified image of point A;

[0020] Figure 4 A cross-sectional view of a test tube of a hydraulic valve pressure detection mechanism proposed by the utility model;

[0021] Figure 5 A hydraulic valve pressure detection mechanism proposed by the utility model Figure 4 The enlarged view of point B;

[0022] Figure 6 A hydraulic valve pressure detection mechanism proposed by the utility model Figure 4 Enlarged view of point C.

[0023] In the figure: 1. detection frame; 2. test tube; 2.1. connection plate; 3. pressure measuring assembly; 3.1. rubber sheath; 3.2. piston column; 3.3. hydraulic telescopic rod; 4. one-way water injection assembly; 4.1. side plate; 4.2. spring seat; 4.3. compression spring; 4.4. float; 4.5. water injection pipe; 5. pressure measuring induction assembly; 5.1. pressure measuring tube; 5.2. leakage ring; 5.3. telescopic traction rod; 5.4. tension spring; 5.5. pressure measuring piston; 5.6. magnetic column; 5.7. coil group; 6. water tank; 7. circulation pump; 7.1. first water inlet pipe; 7.2. second water inlet pipe; 8. controller; 8.1. hoop. DETAILED DESCRIPTION

[0024] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0025] Please refer to Figures 1 to 6The utility model provides a hydraulic valve pressure detection mechanism, including a detection frame 1, a test tube 2, a pressure measuring component 3, a one-way water injection component 4, a pressure measuring sensing component 5, a water tank 6, a circulating pump 7 and a controller 8, wherein the test tube 2 is fixedly installed in the detection frame 1, the pressure measuring component 3 is fixedly installed in the detection frame 1, the pressure measuring component 3 applies a thrust to the test tube 2 to pressurize the water in the test tube 2, the shrink end of the pressure measuring component 3 extends into the test tube 2, the hydraulic valve for detecting pressure is installed on the test tube 2, the one-way water injection component 4 is fixed Installed in the test tube 2, the one-way water injection component 4 can inject water into the test tube 2. When the water flows out from the test tube 2 to the one-way water injection component 4, it is blocked by parts to prevent the water from flowing out of the one-way water injection component 4. The pressure sensing component 5 is fixedly installed on the top of the test tube 2, the water tank 6 is fixedly installed on the front end of the detection frame 1, the circulation pump 7 is fixedly installed on the bottom of the detection frame 1, and the controller 8 is fixedly installed on the test tube 2. The controller 8 is used to control the opening or closing of the pressure sensing component 3 and the circulation pump 7, and the pressure sensing component 5 transmits the signal to the controller 8.

[0026] Specifically, a connecting plate 2.1 is fixedly provided at the front end of the test tube 2, and the connecting plate 2.1 is used to connect to the connecting port of the hydraulic valve device. The hydraulic valve device is in a closed state. One end of the circulating pump 7 is fixedly provided with one end of a first water inlet pipe 7.1, and the other end of the first water inlet pipe 7.1 is fixedly connected to the water tank 6. The other end of the circulating pump 7 is fixedly provided with one end of a second water inlet pipe 7.2, and the second water inlet pipe 7.2 is connected to the one-way water injection component 4 through a hose. The circulating pump 7 draws water out of the water tank 6 through the first water inlet pipe 7.1, and then connects to the one-way water injection component 4 through the second water inlet pipe 7.2 and the hose. Water flows from the one-way water injection component 4 into the test tube 2. A hoop 8.1 is fixedly provided on the side of the controller 8 facing the test tube 2, wherein the hoop 8.1 is sleeved on the test tube 2.

[0027] Furthermore, the hydraulic valve device to be tested is connected to the connecting plate 2.1 of the test tube 2, the valve core of the hydraulic valve device is in a closed state, and the circulation pump 7 is controlled to be opened by the controller 8. The circulation pump 7 pumps out the water in the water tank 6 through the first water inlet pipe 7.1, and then connects to the one-way water injection component 4 through the second water inlet pipe 7.2 and the hose. Water flows into the test tube 2 from the one-way water injection component 4. After a certain amount of water is injected, the pressure measuring component 3 is controlled to be opened by the controller 8. The telescopic end of the pressure measuring component 3 is extended to apply a thrust to the pressure measuring component 3 on the test tube 2, and the water in the test tube 2 is pressurized to detect the hydraulic pressure capacity of the hydraulic valve device.

[0028] More specifically, the pressure measuring assembly 3 includes a rubber sheath 3.1, a piston column 3.2 and a hydraulic telescopic rod 3.3, wherein the rubber sheath 3.1 is fixedly mounted on the piston column 3.2, the rubber sheath 3.1 is tightly attached to the inner wall of the test tube 2 for sealing, the piston column 3.2 is fixedly mounted on the telescopic end of the hydraulic telescopic rod 3.3, the piston column 3.2 is used to support the rubber sheath 3.1, the rubber sheath 3.1 is located in one end of the test tube 2 away from the connecting disk 2.1, the piston column 3.2 is located in one end of the test tube 2 away from the connecting disk 2.1, the retracted end of the hydraulic telescopic rod 3.3 extends into one end of the test tube 2 away from the connecting disk 2.1, the hydraulic telescopic rod 3.3 is fixedly mounted on the detection frame 1, and the hydraulic telescopic rod 3.3 drives the piston column 3.2 and the rubber sheath 3.1 to move in the test tube 2.

[0029] Furthermore, the telescopic end of the hydraulic telescopic rod 3.3 extends, driving the rubber sheath 3.1 and the piston rod 3.2 to move in the tube, and the rubber sheath 3.1 and the piston rod 3.2 pressurize the water in the tube, thereby testing the pressure bearing capacity of the hydraulic valve device.

[0030] Furthermore, the one-way water injection assembly 4 includes a side plate 4.1, a spring seat 4.2, a compression spring 4.3, a float 4.4 and a water injection pipe 4.5, wherein one end of the side plate 4.1 is fixedly mounted on the inner wall of the test tube 2, the spring seat 4.2 is fixedly mounted on the other end of the side plate 4.1, one end of the compression spring 4.3 is fixedly mounted on the spring seat 4.2, the float 4.4 is fixedly mounted on the other end of the compression spring 4.3, the water injection pipe 4.5 is fixedly mounted on the test tube 2, the top of the water injection pipe 4.5 is connected to the hose of the second water inlet pipe 7.2, the compression spring 4.3 is located inside the side plate 4.1, the float 4.4 is located inside the side plate 4.1, and the float 4.4 is located directly below the mouth of the water injection pipe 4.5, the compression spring 4.3 drives the float 4.4 to block the mouth of the water injection pipe 4.5, to prevent water from flowing out of the test tube 2 from the water injection pipe 4.5.

[0031] Furthermore, water flows from the hose of the second water inlet pipe 7.2 into the water injection pipe 4.5, and the water pressure in the water injection pipe 4.5 presses the float 4.4 downward, compresses the compression spring 4.3, and water flows into the test tube 2 from the gap between the float 4.4 and the pipe opening of the water injection pipe 4.5.

[0032] The hydraulic telescopic rod 3.3 applies pressure to the test tube 2, so that the water pressure in the test tube 2 increases, and the float 4.4 blocks the pipe opening of the water injection pipe 4.5 to prevent water from flowing out of the pipe opening of the water injection pipe 4.5.

[0033] More specifically, the pressure sensing assembly 5 includes a pressure measuring tube 5.1, a leakage ring 5.2, a telescopic traction rod 5.3, a tension spring 5.4 and a pressure measuring piston 5.5, wherein the pressure measuring tube 5.1 is fixedly mounted on the test tube 2, the top sealed end of the pressure measuring tube 5.1, the bottom open end of the pressure measuring tube 5.1, the leakage ring 5.2 is fixedly mounted on the inner wall of the pressure measuring tube 5.1, the bottom of the telescopic traction rod 5.3 is fixedly mounted on the leakage ring 5.2, the bottom of the telescopic traction rod 5.3 is fixedly mounted on, one end of the tension spring 5.4 is fixedly mounted on the leakage ring 5.2, the other end of the tension spring 5.4 is fixedly mounted on the leakage ring 5.2, the pressure measuring piston 5.5 is slidably mounted in the pressure measuring tube 5.1, and the pressure measuring piston 5.5 is subjected to the pressure of the water pressure, which pushes the pressure measuring piston 5.5 upward.

[0034] The pressure sensing assembly 5 also includes a magnetic column 5.6 and a coil assembly 5.7. The bottom of the magnetic column 5.6 is fixedly mounted on the top of the pressure measuring piston 5.5. The coil assembly 5.7 is fixedly mounted in the pressure measuring tube 5.1. The displacement of the magnetic column 5.6 in the coil assembly 5.7 generates an electrical signal.

[0035] Furthermore, as the water pressure in the test tube 2 increases, water will enter the pressure measuring tube 5.1 and pass through the leakage ring 5.2. The water will push the pressure measuring piston 5.5 upward according to the water pressure in the test tube 2. The pressure measuring piston 5.5 stretches the tension spring 5.4. The pressure measuring piston 5.5 drives the magnetic column 5.6 to move upward, so that the magnetic column 5.6 enters the coil group 5.7. The magnetic column 5.6 and the coil group 5.7 generate electrical signals to detect the size of the hydraulic pressure, and transmit the electrical signals to the controller 8, thereby detecting the pressure bearing capacity of the hydraulic valve device.

[0036] After the pressure bearing capacity test of the hydraulic valve device is completed, the hydraulic telescopic rod 3.3 is reset to reduce the water pressure in the test tube 2. When the hydraulic valve device is removed from the connecting plate 2.1, water flows out from the port at the connecting plate 2.1 of the test tube 2 and flows into the water tank 6.

[0037] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A hydraulic valve pressure detection mechanism, characterized in that: The invention comprises a detection frame (1), a test tube (2), a pressure measuring component (3), a one-way water injection component (4), a pressure measuring sensing component (5), a water tank (6), a circulation pump (7) and a controller (8), wherein the test tube (2) is fixedly installed in the detection frame (1), the pressure measuring component (3) is fixedly installed in the detection frame (1), the shrinkage end of the pressure measuring component (3) extends into the test tube (2), the one-way water injection component (4) is fixedly installed in the test tube (2), the pressure measuring sensing component (5) is fixedly installed on the top of the test tube (2), the water tank (6) is fixedly installed at the front end of the detection frame (1), the circulation pump (7) is fixedly installed at the bottom of the detection frame (1), and the controller (8) is fixedly installed on the test tube (2).

2. A hydraulic valve pressure detection mechanism according to claim 1, characterized in that: A connection plate (2.1) is fixedly provided at the front end of the test tube (2); one end of a first water inlet pipe (7.1) is fixedly provided at one end of the circulation pump (7); the other end of the first water inlet pipe (7.1) is fixedly connected to a water tank (6); one end of a second water inlet pipe (7.2) is fixedly provided at the other end of the circulation pump (7); the second water inlet pipe (7.2) is connected to a one-way water injection assembly (4) via a hose; and a hoop (8.1) is fixedly provided on a side of the controller (8) facing the test tube (2), wherein the hoop (8.1) is sleeved on the test tube (2).

3. A hydraulic valve pressure detection mechanism according to claim 1, characterized in that: The pressure measuring assembly (3) comprises a rubber sheath (3.1), a piston column (3.2) and a hydraulic telescopic rod (3.3), wherein the rubber sheath (3.1) is fixedly mounted on the piston column (3.2), and the piston column (3.2) is fixedly mounted on the telescopic end of the hydraulic telescopic rod (3.3).

4. A hydraulic valve pressure detection mechanism according to claim 3, characterized in that: The rubber sheath (3.1) is located inside the end of the test tube (2) away from the connection disk (2.1), the piston rod (3.2) is located inside the end of the test tube (2) away from the connection disk (2.1), the retracted end of the hydraulic telescopic rod (3.3) extends into the end of the test tube (2) away from the connection disk (2.1), and the hydraulic telescopic rod (3.3) is fixedly mounted on the detection frame (1).

5. A hydraulic valve pressure detection mechanism according to claim 1, characterized in that: The one-way water injection assembly (4) comprises a side plate (4.1), a spring seat (4.2), a compression spring (4.3), a floating ball (4.4) and a water injection pipe (4.5), wherein one end of the side plate (4.1) is fixedly mounted on the inner wall of the test tube (2), the spring seat (4.2) is fixedly mounted on the other end of the side plate (4.1), one end of the compression spring (4.3) is fixedly mounted on the spring seat (4.2), the floating ball (4.4) is fixedly mounted on the other end of the compression spring (4.3), and the water injection pipe (4.5) is fixedly mounted on the test tube (2).

6. A hydraulic valve pressure detection mechanism according to claim 5, characterized in that: The compression spring (4.3) is located inside the side plate (4.1), the float ball (4.4) is located inside the side plate (4.1), and the float ball (4.4) is located directly below the pipe opening of the water injection pipe (4.5).

7. A hydraulic valve pressure detection mechanism according to claim 1, characterized in that: The pressure sensing assembly (5) comprises a pressure measuring tube (5.1), a liquid leakage ring (5.2), a telescopic traction rod (5.3), a tension spring (5.4) and a pressure measuring piston (5.5), wherein the pressure measuring tube (5.1) is fixedly mounted on the test tube (2), the liquid leakage ring (5.2) is fixedly mounted on the inner wall of the pressure measuring tube (5.1), the bottom of the telescopic traction rod (5.3) is fixedly mounted on the liquid leakage ring (5.2), the bottom of the telescopic traction rod (5.3) is fixedly mounted on the top, one end of the tension spring (5.4) is fixedly mounted on the liquid leakage ring (5.2), the other end of the tension spring (5.4) is fixedly mounted on the liquid leakage ring (5.2), and the pressure measuring piston (5.5) is slidably mounted in the pressure measuring tube (5.1).

8. A hydraulic valve pressure detection mechanism according to claim 7, characterized in that: The pressure sensing assembly (5) further comprises a magnetic column (5.6) and a coil assembly (5.7); the bottom of the magnetic column (5.6) is fixedly mounted on the top of the pressure measuring piston (5.5); and the coil assembly (5.7) is fixedly mounted in the pressure measuring tube (5.1).

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