Detection device for umbrella-shaped sealing element of pump

Abstract

The pump umbrella-shaped sealing element detection device comprises a rack; the fixing frame is vertically arranged on the rack; the first driving assembly comprises a first air cylinder arranged on the side of the lower portion of the fixing frame and a lower lifting block driven by the first air cylinder, and a sealing silica gel column is arranged at the top of the lower lifting block; the second driving assembly comprises a second air cylinder arranged on the side of the upper portion of the fixing frame and an upper lifting block driven by the second air cylinder, and an air spraying opening communicated with an external air source is formed in the bottom of the upper lifting block; the pressure detection unit comprises a pressure sensor arranged in the air flow channel of the air nozzle and a pressure display in signal connection with the pressure sensor; the device is novel in structure, the pressure sensor monitors the gas pressure change in real time, the pressure value is visually displayed through the pressure display, an operator can rapidly judge the performance of the sealing element, the detection result is visual and easy to understand, and the detection efficiency and accuracy are improved.

Description

Technical Field

[0001] This utility model relates to a testing device, specifically a pump umbrella-shaped seal testing device. Background Technology

[0002] In modern industry, pumps, as core equipment for fluid transportation, directly affect their operating efficiency, energy consumption, and safety through the sealing performance of their internal umbrella-shaped seals. Leaks in these seals can lead not only to media leakage and environmental pollution but also potentially to equipment malfunctions or safety accidents. Therefore, accurate and efficient testing of the sealing performance of pump umbrella-shaped seals is crucial for ensuring stable industrial production.

[0003] Currently, traditional methods for inspecting pump umbrella seals mainly rely on manual operation or simple pressure testing equipment. Manual inspection often suffers from low efficiency, strong subjectivity, and inconsistent testing standards, making it difficult to meet the testing needs of mass production. On the other hand, some simple pressure testing equipment, due to a lack of precise positioning of the seal and multi-angle pressure testing, is prone to blind spots, resulting in inaccurate assessment of sealing performance and an inability to effectively identify minute leaks. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a pump umbrella seal detection device, which effectively solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: This utility model includes:

[0006] frame;

[0007] A mounting bracket vertically mounted on the machine frame;

[0008] The first drive assembly includes a first cylinder disposed on the lower side of the fixed frame and a lower lifting block driven therefrom, wherein the top of the lower lifting block is provided with a sealing silicone column;

[0009] The second drive assembly includes a second cylinder disposed on the upper side of the fixed frame and an upper lifting block driven therefrom, wherein the bottom of the upper lifting block is provided with an air jet port communicating with an external air source.

[0010] The pressure detection unit includes a pressure sensor disposed in the airflow channel of the jet nozzle, and a pressure display connected to the pressure sensor signal;

[0011] The upper and lower lifting blocks are arranged opposite each other to form a clamping station. The top surface of the sealing silicone column forms a sealing surface that matches the bottom contour of the workpiece to be tested. The axis of the air jet corresponds to the installation position of the umbrella-shaped seal of the workpiece to be tested.

[0012] Preferably, the top end of the sealing silicone column is provided with an annular flange, the inner diameter of which is smaller than the diameter of the bottom sealing surface of the workpiece to be tested.

[0013] Preferably, the bottom of the lifting block is provided with a positioning groove that matches the top contour of the workpiece to be inspected.

[0014] Preferably, multiple jet nozzles are evenly arranged circumferentially, and each jet nozzle is connected to an independent pressure detection unit.

[0015] Preferably, the lower lifting block and the upper lifting block are respectively provided with guide rods, and the fixed frame is provided with linear bearings that cooperate with the guide rods.

[0016] Preferably, the piston rod ends of both the first cylinder and the second cylinder are provided with pressure dampers.

[0017] Beneficial effects: Double sealing structure: The top surface of the sealing silicone column matches the bottom contour of the workpiece to be tested, and the inner diameter of the annular flange is smaller than the diameter of the bottom sealing surface of the workpiece, which enhances the bottom sealing effect and prevents gas leakage.

[0018] The bottom positioning groove of the lifting block matches the top contour of the workpiece, further improving the sealing space during clamping and forming a double seal to ensure the airtightness of the testing environment.

[0019] Precise positioning and clamping: The positioning groove of the upper lifting block and the sealing silicone pillar of the lower lifting block work together to achieve precise positioning and stable clamping of the workpiece to be inspected, ensuring the accuracy of the inspection position and reducing human error.

[0020] Linear motion guidance: The cooperation between the guide rod and the linear bearing ensures that the upper and lower lifting blocks maintain linear motion during the lifting process, avoids deviation, and improves the motion accuracy and stability of the detection device.

[0021] Buffer protection design: Pressure buffers are installed at the piston rod ends of the first and second cylinders to reduce the impact and vibration during cylinder movement, protect equipment components, extend service life, and prevent damage to the workpiece during clamping.

[0022] Automated drive: The first and second cylinders drive the lower lifting block and the upper lifting block respectively, realizing automated control of the clamping and detection process, reducing the intensity of manual operation and improving detection efficiency.

[0023] Real-time pressure monitoring: The pressure sensor monitors gas pressure changes in real time and displays the pressure value intuitively through the pressure display, which makes it easy for operators to quickly judge the performance of the seal. The test results are intuitive and easy to understand, improving the efficiency and accuracy of the test. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0025] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0026] Figure 2 This is a two-dimensional structural schematic diagram of the present invention from a second perspective;

[0027] Figure 3 This is a utility model Figure 1 A three-dimensional structural diagram of A in the middle;

[0028] Figure 4 This is a utility model Figure 2 A three-dimensional structural diagram of B in the diagram;

[0029] The following are the labels in the diagram: 1. Frame; 2. Vertical fixed frame; 3. First cylinder; 4. Lower lifting block; 5. Sealing silicone column; 6. Workpiece to be inspected; 7. Second cylinder; 8. Upper lifting block; 9. Air jet; 10. Pressure display. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-4 The specific embodiments of this utility model will be described in further detail.

[0031] Example 1, by Figure 1-4 This utility model provides a pump umbrella-shaped seal testing device, comprising:

[0032] Rack 1;

[0033] A fixed frame 2 is vertically mounted on the frame 1;

[0034] The first drive assembly includes a first cylinder 3 disposed on the lower side of the fixed frame 2 and a lower lifting block 4 driven therefrom, wherein the top of the lower lifting block 4 is provided with a sealing silicone column 5;

[0035] The second drive assembly includes a second cylinder 7 disposed on the upper side of the fixed frame 2 and an upper lifting block 8 driven therefrom. The bottom of the upper lifting block 8 is provided with a jet port 9 that communicates with an external air source.

[0036] The pressure detection unit includes a pressure sensor disposed in the airflow channel of the jet nozzle 9, and a pressure display 10 connected to the pressure sensor signal;

[0037] The upper lifting block 8 and the lower lifting block 4 are arranged opposite each other to form a clamping station. The top surface of the sealing silicone column 5 forms a sealing surface that matches the bottom contour of the workpiece 6 to be tested. The axis of the air jet 9 corresponds to the installation position of the umbrella-shaped seal of the workpiece 6 to be tested.

[0038] Frame 1: As the basic support structure of the entire testing device, it provides a stable installation platform for other components and ensures the overall stability of the device.

[0039] Vertical fixing frame 2: Vertically set on the frame 1, it is an important carrier for connecting and fixing key components such as the first drive assembly and the second drive assembly, ensuring that each component maintains the correct relative position during the testing process.

[0040] First driving component

[0041] First cylinder 3: Located on the lower side of the fixed frame 2, it serves as the power source for the lower lifting block 4. Through its telescopic movement, it drives the lower lifting block 4 to achieve vertical lifting action.

[0042] The lower lifting block 4, driven by the first cylinder 3, carries the sealing silicone column 5 during the testing process and rises or falls according to testing requirements. Its top is equipped with the sealing silicone column 5, the top surface of which forms a sealing surface matching the bottom contour of the workpiece 6 to be tested, allowing for tight contact with the bottom of the workpiece to form a sealed space. Furthermore, the top of the sealing silicone column 5 has an annular flange, the inner diameter of which is smaller than the diameter of the sealing surface at the bottom of the workpiece 6 to be tested, further enhancing the sealing effect and preventing leakage of testing gas.

[0043] Second drive component

[0044] The second cylinder 7 is installed on the upper side of the fixed frame 2 and is used to drive the lifting block 8 to move vertically, so as to achieve precise control of the position of the lifting block 8.

[0045] The lifting block 8, driven by the second cylinder 7, has a jet nozzle 9 at its bottom that connects to an external air source. During testing, gas is sprayed through the jet nozzle 9 onto the umbrella-shaped seal installation position of the workpiece 6 to be tested. Simultaneously, the bottom of the lifting block 8 has a positioning groove that matches the top contour of the workpiece 6, accurately positioning and clamping the workpiece to ensure the accuracy and stability of the test. Furthermore, multiple jet nozzles 9 are evenly arranged circumferentially, each connected to an independent pressure detection unit, allowing for pressure testing of the seal from multiple angles and a comprehensive evaluation of the sealing performance.

[0046] Pressure detection unit

[0047] Pressure sensor: installed in the airflow channel of jet nozzle 9, used to monitor the gas pressure change through jet nozzle 9 in real time and convert the pressure signal into an electrical signal.

[0048] Pressure display 10: Connected to the pressure sensor signal, it receives the electrical signal transmitted by the pressure sensor and converts it into an intuitive pressure value for display, making it convenient for operators to obtain real-time pressure data.

[0049] Other auxiliary components

[0050] Guide rods and linear bearings: Guide rods are respectively provided on the lower lifting block 4 and the upper lifting block 8, and linear bearings that cooperate with the guide rods are provided on the fixed frame 2. The cooperation between the guide rods and the linear bearings ensures that the lower lifting block 4 and the upper lifting block 8 maintain linear motion during the lifting process, avoids deviation, and improves the motion accuracy and stability of the detection device.

[0051] Pressure buffers: Pressure buffers are provided at the piston rod ends of both the first cylinder 3 and the second cylinder 7. The pressure buffers can buffer the movement of the cylinder piston rod, reduce impact and vibration, protect the cylinder and related components, extend the service life of the equipment, and at the same time make the workpiece more stable during the clamping process, avoiding damage to the workpiece due to excessive impact force.

[0052] Working Principle: When using this invention to test the pump umbrella-shaped seal, the workpiece 6 to be tested is first placed between the clamping station formed by the upper lifting block 8 and the lower lifting block 4. At this time, the first cylinder 3 in the first drive assembly is activated. The first cylinder 3 serves as a power source, driving the lower lifting block 4 to rise vertically through the extension and retraction of the piston rod. Since the top of the lower lifting block 4 is provided with a sealing silicone column 5, and the top surface of the sealing silicone column 5 forms a sealing surface that matches the bottom contour of the workpiece 6 to be tested, and the inner diameter of the annular flange at its top is smaller than the diameter of the bottom sealing surface of the workpiece 6 to be tested, the sealing silicone column 5 can fit tightly against the bottom of the workpiece 6 to be tested during the rising process of the lower lifting block 4, thus initially forming a sealing space.

[0053] Next, the second cylinder 7 in the second drive assembly is activated, driving the upper lifting block 8 downwards. The bottom of the upper lifting block 8 has a positioning groove that matches the top contour of the workpiece 6 to be inspected. During descent, this positioning groove accurately positions the workpiece, placing it in a precise inspection position. Simultaneously, the air jet 9 at the bottom of the upper lifting block 8 gradually approaches the umbrella-shaped seal installation position of the workpiece 6 until it makes tight contact with the top of the workpiece, further perfecting the sealing space. At this point, the workpiece 6 is securely clamped between the upper lifting block 8 and the lower lifting block 4, and the sealing silicone pillar 5 and the upper lifting block 8 together form a relatively enclosed space.

[0054] Subsequently, an external air source is connected to the air jet 9 at the bottom of the lifting block 8 via a pipe, and the gas is sprayed through the air jet 9 towards the umbrella-shaped seal installation position of the workpiece 6 to be inspected. Since multiple air jets 9 are evenly arranged circumferentially, and each air jet 9 is connected to an independent pressure detection unit, the gas can apply pressure to the umbrella-shaped seal. A pressure sensor installed in the airflow channel of the air jet 9 monitors the gas pressure changes passing through the air jet 9 in real time and converts the pressure signal into an electrical signal.

[0055] The pressure display 10 is connected to the pressure sensor signal. After receiving the electrical signal transmitted by the pressure sensor, it converts it into a visually appealing pressure value for display. By observing the pressure value on the pressure display 10, the operator can determine the sealing performance of the umbrella seal. If the pressure value is within the set normal range, it indicates that the umbrella seal is sealing well; if the pressure value is abnormal and below the normal range, it indicates that the umbrella seal has a leakage problem and its sealing performance is unqualified.

[0056] Throughout the entire testing process, the guide rods on the lower lifting block 4 and the upper lifting block 8 cooperate with the linear bearings on the fixed frame 2, ensuring that the lower lifting block 4 and the upper lifting block 8 maintain linear motion during lifting and lowering, avoiding deviation, and improving the motion accuracy and stability of the testing device. Simultaneously, the pressure dampers at the piston rod ends of the first cylinder 3 and the second cylinder 7 act as buffers during the movement of the cylinder piston rods, reducing impact and vibration, protecting the cylinders and related components, extending the service life of the equipment, and making the workpiece more stable during clamping, preventing damage to the workpiece due to excessive impact force.

[0057] Beneficial effects:

[0058] Double sealing structure: The top surface of the sealing silicone column 5 matches the bottom contour of the workpiece to be tested, and the inner diameter of the annular flange is smaller than the diameter of the bottom sealing surface of the workpiece, which enhances the bottom sealing effect and prevents gas leakage.

[0059] The bottom positioning groove of the lifting block 8 matches the top contour of the workpiece, further improving the sealing space during clamping and forming a double seal to ensure the airtightness of the testing environment.

[0060] Precise positioning and clamping: The positioning groove of the upper lifting block 8 and the sealing silicone pillar 5 of the lower lifting block 4 cooperate to achieve precise positioning and stable clamping of the workpiece to be inspected, ensuring the accuracy of the inspection position and reducing human error.

[0061] Linear motion guidance: The cooperation between the guide rod and the linear bearing ensures that the upper lifting block 8 and the lower lifting block 4 maintain linear motion during the lifting process, avoids deviation, and improves the motion accuracy and stability of the detection device.

[0062] Buffer protection design: Pressure buffers are installed at the piston rod ends of the first cylinder 3 and the second cylinder 7 to reduce the impact and vibration during cylinder movement, protect equipment components, extend service life, and avoid damage to the workpiece during clamping.

[0063] Automated drive: The first cylinder 3 and the second cylinder 7 drive the lower lifting block 4 and the upper lifting block 8 respectively, realizing automated control of the clamping and detection process, reducing the intensity of manual operation and improving detection efficiency.

[0064] Real-time pressure monitoring: The pressure sensor monitors gas pressure changes in real time and displays the pressure value intuitively through the pressure display 10, which makes it easy for operators to quickly judge the performance of the seal. The test results are intuitive and easy to understand, improving the efficiency and accuracy of the test.

[0065] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pump umbrella-shaped seal testing device, characterized in that: include: Rack (1); A fixed frame (2) is vertically mounted on the frame (1); The first drive assembly includes a first cylinder (3) disposed on the lower side of the fixed frame (2) and a lower lifting block (4) driven therefrom, wherein the top of the lower lifting block (4) is provided with a sealing silicone column (5). The second drive assembly includes a second cylinder (7) disposed on the upper side of the fixed frame (2) and an upper lifting block (8) driven by it. The bottom of the upper lifting block (8) is provided with a jet port (9) that communicates with an external air source. The pressure detection unit includes a pressure sensor disposed in the airflow channel of the jet nozzle (9) and a pressure display (10) connected to the pressure sensor signal. The upper lifting block (8) and the lower lifting block (4) are arranged opposite to each other to form a clamping station. The top surface of the sealing silicone column (5) forms a sealing surface that matches the bottom contour of the workpiece (6) to be tested. The axis of the air jet (9) corresponds to the installation position of the umbrella-shaped seal of the workpiece (6) to be tested.

2. The pump umbrella seal detection device according to claim 1, characterized in that: The top of the sealing silicone column (5) is provided with an annular flange, the inner diameter of which is smaller than the diameter of the bottom sealing surface of the workpiece (6) to be tested.

3. The pump umbrella seal detection device according to claim 2, characterized in that: The bottom of the lifting block (8) is provided with a positioning groove that matches the top contour of the workpiece (6) to be inspected.

4. The pump umbrella seal detection device according to claim 3, characterized in that: The jet nozzles (9) are evenly arranged in a circumferential direction, and each jet nozzle (9) is connected to an independent pressure detection unit.

5. The pump umbrella seal detection device according to claim 4, characterized in that: Guide rods are provided on the lower lifting block (4) and the upper lifting block (8), and linear bearings that cooperate with the guide rods are provided on the fixing frame (2).

6. The pump umbrella seal detection device according to claim 5, characterized in that: Pressure buffers are provided at the piston rod ends of the first cylinder (3) and the second cylinder (7).

Images