Device and method for detecting pressure bearing strength of adapter of pressure gauge

Abstract

The invention provides equipment and a method for detecting the pressure bearing strength of a pressure gauge adapter, and relates to the technical field of pressure gauge adapter detection. The pressure gauge adapter pressure-bearing strength detection equipment comprises a rack, a detection shell, an injection pipe, a stop valve, a reference gauge, a lifting assembly, a mounting assembly, a driving assembly and a positioning assembly, wherein the rack is used for providing a detection position; the detection shell is fixedly mounted on the rack and is used for transmitting high-pressure gas; the injection pipe is fixedly installed on one side of the detection shell and used for being connected with an external high-pressure air source. Through arrangement of the positioning assembly, the driving assembly and the lifting assembly, the height of the driving assembly is changed through the lifting assembly, and through mutual cooperation of the driving assembly and the positioning assembly, the detected adapter can be knocked periodically, the vibration use environment can be simulated, the actual use condition is better fitted, and the detection condition is accurate.

Description

Technical Field

[0001] This invention relates to the field of pressure gauge adapter testing technology, specifically to a pressure gauge adapter pressure bearing strength testing device and method. Background Technology

[0002] A pressure gauge is an instrument that measures and indicates pressures above ambient pressure. During installation, pressure gauges sometimes use adapters, which are crucial transitional components connecting the pressure gauge to the pipeline or equipment containing the measured medium. Their core function is to resolve compatibility issues between different devices and ensure accurate pressure signal transmission and safe system operation. To guarantee the quality of these adapters, pressure resistance testing is typically required, necessitating the use of pressure resistance testing equipment.

[0003] In related technologies, such as the pressure gauge adapter pressure bearing strength testing device and method with announcement number CN115979826A, a load block is provided. The load block has a housing cavity inside, and a testing placement mechanism is inserted into the housing cavity. Multiple air inlet mechanisms are arranged inside the load block and below the testing placement mechanism. The air inlet mechanisms are evenly distributed along the axis of the testing placement mechanism. Multiple transmission and connection mechanisms are arranged inside the load block and above the testing placement mechanism.

[0004] When testing pressure resistance, it is necessary to maintain pressure for a period of time according to the test items. During this period, the installation environment of the pressure gauge adapter may be subject to vibration. Therefore, the static pressure holding state cannot simulate the actual use conditions, and the test conditions are not accurate enough. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a pressure gauge adapter pressure bearing strength testing device and method, which solves the problem of not being able to simulate whether the adapter is qualified under vibration conditions.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a pressure gauge adapter pressure bearing strength testing device, comprising: A rack, which provides a detection position; A detection housing, which is fixedly mounted on the frame, is used to transmit high-pressure gas; An injection tube is fixedly installed on one side of the detection housing and is used to connect to an external high-pressure air source; A shut-off valve, which is fixedly installed on the injection pipe, is used to control the flow of high-pressure gas. Reference table, which is fixedly installed on the detection housing; A lifting assembly, which is fixedly installed on the frame, is used to provide lifting function; The mounting component is disposed on the test housing and is used to provide mounting positions for multiple products under test; A drive assembly, which is mounted on the lifting component of the lifting assembly, is used to drive the mounting assembly to rotate; A positioning component, mounted on the detection housing, is used to limit the positioning of the mounting component. Through the positioning component, drive component, and lifting component, the height of the drive component is changed by the lifting component. The drive component and positioning component work together to periodically tap the adapter under test, simulating a vibration environment, which is more in line with actual usage conditions and ensures accurate testing. The mounting component provides multiple mounting positions for the tested products, allowing for simultaneous testing of multiple products. It also buffers the injection of high-pressure gas, preventing damage to the internal threads of the adapter.

[0007] Preferably, the lifting assembly includes an electric push rod fixedly mounted on the frame, and the output end of the electric push rod is fixedly connected to a lifting plate.

[0008] Preferably, the mounting assembly includes a central cylinder fixedly mounted on the detection housing, a mounting plate rotatably connected to the upper part of the central cylinder, mounting cylinders uniformly fixedly connected to the circumference of the mounting plate, a jack on the mounting cylinder, a pressure gauge fixedly mounted on the jack, a radial channel inside the mounting plate, and an air outlet at the upper part of the central cylinder, the air outlet being connected to the radial channel on the right side.

[0009] Preferably, a blocking member is slidably connected inside the central cylinder, and a buffer spring is fixedly connected between the upper part of the blocking member and the central cylinder.

[0010] Preferably, the lower part of the blocking member is provided with a cone portion, which covers half of the air outlet; the upper part of the central cylinder is provided with a sealing ring.

[0011] Preferably, the drive assembly includes a drive motor fixedly mounted on the lifting plate, a drive gear fixedly connected to the output end of the drive motor, and a driven ring gear meshing with the outer side of the drive gear; the driven ring gear is fixedly connected to the mounting plate.

[0012] Preferably, the positioning component includes a fixed base fixedly installed on the detection housing. A positioning rod and an upper rod are fixedly connected to the side of the fixed base near the mounting component. A movable block is slidably connected to the positioning rod. A positioning spring is sleeved on the positioning rod and located between the movable block and the fixed base. A positioning tooth is fixedly connected to the side of the movable block away from the fixed base. An electromagnet is fixedly installed in the middle of the fixed base. The electromagnet can attract the movable block when energized.

[0013] Preferably, an upper driven plate is slidably connected to the upper rod, an upper spring is sleeved on the upper rod and located between the upper driven plate and the fixed seat, and a striking plate is fixedly connected to the side of the upper driven plate away from the fixed seat; the striking plate can strike the mounting cylinder, and the upper driven plate can be driven by a drive gear.

[0014] This invention also provides a method for testing the pressure bearing capacity of a pressure gauge adapter, using the pressure bearing capacity testing equipment for pressure gauge adapters as described above, and including the following steps: Step 1: Install the product to be tested onto the mounting components; Step 2: Open the shut-off valve and inject the external high-pressure air source; Step 3: Activate the lifting component to bring the drive component and positioning component to the same height, and activate the drive component to simulate a vibration environment; Step 4: Start the lifting assembly to bring the drive assembly and the installation assembly to the same height. The positioning assembly releases its positioning, the drive assembly is started to change the position of the product under test, and the positioning assembly repositions itself.

[0015] This invention provides a device and method for testing the pressure bearing capacity of a pressure gauge adapter. It has the following beneficial effects: 1. This invention, through the setting of a positioning component, a driving component, and a lifting component, changes the height of the driving component by the lifting component. By utilizing the cooperation between the driving component and the positioning component, the interface to be tested can be periodically tapped to simulate the vibration environment, which is more in line with actual usage conditions and the detection conditions are accurate.

[0016] 2. The present invention provides multiple installation positions for the products under test through the installation components, which can test multiple products at the same time. It can also buffer the injection of high-pressure gas to avoid damaging the internal threads of the adapter products. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a front view of the present invention; Figure 3 This is a cross-sectional view of the mounting assembly of the present invention; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the positioning component in this invention; Figure 6 This is a schematic diagram of the blocking component in this invention; Figure 7 This is a cross-sectional view of the mounting disk in this invention.

[0018] The components include: 1. Frame; 2. Injection pipe; 3. Shut-off valve; 4. Reference table; 5. Drive assembly; 6. Lifting assembly; 7. Positioning assembly; 8. Mounting assembly; 9. Detection housing; 501. Drive motor; 502. Drive gear; 503. Driven ring gear; 601. Electric push rod; 602. Lifting plate; 801. Mounting plate; 802. Radial channel; 803. Mounting cylinder; 804. Pressure gauge; 805. Adapter; 806. Center cylinder; 807. Sealing ring; 808. Air outlet; 809. Blocking component; 810. Buffer spring; 8091. Cone; 701. Fixed base; 702. Positioning rod; 703. Positioning spring; 704. Moving block; 705. Positioning tooth; 706. Upper rod; 707. Upper spring; 708. Upper driven plate; 709. Striking plate; 710. Electromagnet. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figures 1-7 As shown, this embodiment of the invention provides a pressure gauge adapter pressure bearing strength testing device, comprising: refer to Figure 1 Frame 1 is used to provide the detection position; Frame 1 is a whole consisting of a plate and four support legs, providing the installation position for other components.

[0021] refer to Figure 1 , Figure 2 The detection housing 9 is fixedly installed on the frame 1 and is used to transmit high-pressure gas. The detection housing 9 is a long, hollow housing that can withstand the transmission of high-pressure gas.

[0022] refer to Figure 1 , Figure 2 Injection pipe 2 is fixedly installed on one side of the detection housing 9 and is used to connect an external high-pressure air source; the external high-pressure air source can inject into the detection housing 9 through injection pipe 2.

[0023] refer to Figure 1 The shut-off valve 3 is fixedly installed on the injection pipe 2 and is used to control the on / off of high-pressure gas. The shut-off valve 3 has a handwheel, which can be turned to open or close the injection pipe 2.

[0024] refer to Figure 1Refer to Table 4, which is fixedly installed on the test housing 9. Table 4 is a pressure gauge for qualified products, which can provide reference pressure values ​​to avoid damage to the adapter of the tested product due to inaccurate values ​​of pressure gauge 804.

[0025] refer to Figure 1 , Figure 2 Lifting assembly 6 is fixedly installed on the frame 1 and is used to provide lifting function; the lifting assembly 6 includes an electric push rod 601 fixedly installed on the frame 1, and the output end of the electric push rod 601 is fixedly connected to a lifting plate 602. During lifting operations, the electric push rod 601 operates under the control of the external power supply and controller, driving the lifting plate 602 to rise or fall, thereby switching the state of the drive component 5.

[0026] refer to Figure 2 , Figure 3 , Figure 7 The mounting component 8 is mounted on the detection housing 9 and is used to provide mounting positions for multiple products under test. The mounting component 8 includes a central cylinder 806 fixedly mounted on the detection housing 9. A mounting plate 801 is rotatably connected to the upper part of the central cylinder 806. Mounting cylinders 803 are evenly fixedly connected to the circumference of the mounting plate 801. An adapter 805 is mounted on the mounting cylinder 803. A pressure gauge 804 is fixedly mounted on the adapter 805. A radial channel 802 is provided inside the mounting plate 801. An air outlet 808 is provided at the upper part of the central cylinder 806. The air outlet 808 is connected to the right radial channel 802. High-pressure gas released from the detection housing 9 enters the central cylinder 806. The central cylinder 806 has only one outlet 808 at the top, from which the gas is discharged into the radial channel 802 on the right side. The radial channels 802 in other parts are blocked by the central cylinder 806 and will not leak high-pressure gas.

[0027] refer to Figure 4 A blocking component 809 is slidably connected inside the central cylinder 806, and a buffer spring 810 is fixedly connected between the upper part of the blocking component 809 and the central cylinder 806. If the pressure of the high-pressure gas is too high, the gas pressure will push the blocking component 809 to overcome the elastic force of the buffer spring 810, thereby buffering the high-pressure gas and preventing the high-pressure gas from being released too quickly and affecting the internal threads of the product being tested.

[0028] refer to Figure 4 The lower part of the blocking member 809 is provided with a cone 8091, which covers half of the air outlet 808; the upper part of the central cylinder 806 is provided with a sealing ring 807. Half of the outlet 808 is covered by the cone 8091. The cone 8091 does not affect the passage of gas through the outlet 808. The sealing ring 807 is used to improve the sealing performance at the center cylinder 806.

[0029] refer to Figure 1 , Figure 2 The drive assembly 5 is located on the lifting component of the lifting assembly 6 and is used to drive the mounting assembly 8 to rotate. The drive assembly 5 includes a drive motor 501 fixedly mounted on the lifting plate 602. The output end of the drive motor 501 is fixedly connected to a drive gear 502. The outer side of the drive gear 502 is meshed with a driven ring gear 503. The driven ring gear 503 is fixedly connected to the mounting plate 801. During operation, the drive motor 501 operates under the control of the external power supply and controller, driving the drive gear 502 to rotate. When the drive gear 502 meshes with the driven ring gear 503, it can drive the driven ring gear 503 to rotate, thereby driving the mounting plate 801 to rotate, thus achieving the purpose of changing the position of the product being tested.

[0030] refer to Figure 1 , Figure 2 , Figure 5 The positioning component 7 is disposed on the detection housing 9 and is used to limit the positioning installation component 8. The positioning component 7 includes a fixed base 701 fixedly installed on the detection housing 9. A positioning rod 702 and an upper rod 706 are fixedly connected to the side of the fixed base 701 near the installation component 8. A moving block 704 is slidably connected to the positioning rod 702. A positioning spring 703 is sleeved on the positioning rod 702 and located between the moving block 704 and the fixed base 701. A positioning tooth 705 is fixedly connected to the side of the moving block 704 away from the fixed base 701. An electromagnet 710 is fixedly installed in the middle of the fixed base 701. When the electromagnet 710 is energized, it can attract the moving block 704. When the positioning operation is restricted, the electromagnet 710 is de-energized. Under the elastic force of the positioning spring 703, the moving block 704 can be driven to move on the positioning rod 702. The positioning tooth 705 can be engaged in the driven ring tooth 503 to restrict and fix the driven ring tooth 503. When the restricted positioning state is released, the electromagnet 710 is energized, and the magnetic force generated by it can attract the moving block 704. The moving block 704 drives the positioning tooth 705 away from the driven ring tooth 503, and the driven ring tooth 503 can rotate normally.

[0031] refer to Figure 2 , Figure 5An upper driven plate 708 is slidably connected to the upper rod 706. An upper spring 707 is sleeved on the upper rod 706 and located between the upper driven plate 708 and the fixed seat 701. A striking plate 709 is fixedly connected to the side of the upper driven plate 708 away from the fixed seat 701. The striking plate 709 can strike the mounting cylinder 803. The upper driven plate 708 can be driven by the drive gear 502. During the tapping operation, the lifting plate 602 is driven to rise by the electric push rod 601, which in turn drives the drive gear 502 to move upward. The drive gear 502 is at the same height as the upper driven plate 708. Therefore, the rotation of the drive gear 502 will periodically drive the upper driven plate 708. The upper driven plate 708 slides on the upper rod 706, compressing the upper spring 707. After moving, the upper driven plate 708 no longer contacts the drive gear 502. Due to the lack of drive from the drive gear 502, under the elastic force of the upper spring 707, the upper driven plate 708 moves again to return to the position where it can contact the drive gear 502, thus realizing the periodic drive of the upper driven plate 708. The tapping plate 709 on the upper driven plate 708 can periodically tap the mounting cylinder 803, simulating the adapter product in a vibration environment, which is consistent with the actual installation conditions and the vibration usage environment, making it more in line with actual use and ensuring accurate detection conditions.

[0032] This invention also provides a method for testing the pressure bearing capacity of a pressure gauge adapter, using the pressure bearing capacity testing equipment for pressure gauge adapters as described above, and including the following steps: Step 1: Install the product to be tested onto mounting component 8; Step 2: Open shut-off valve 3 to inject external high-pressure air source; Step 3: Start the lifting component 6 to make the drive component 5 and the positioning component 7 the same height, and start the drive component 5 to simulate the vibration environment; Step 4: Start the lifting component 6 to make the drive component 5 and the installation component 8 the same height, the positioning component 7 releases the positioning, start the drive component 5 to change the position of the product under test, and the positioning component 7 repositions.

[0033] Working principle: First, install the adapter 805 and pressure gauge 804 to be tested on the corresponding mounting cylinder 803; Open the shut-off valve 3, and the external high-pressure air source enters the detection housing 9 from the injection pipe 2. Refer to Table 4 to display the pressure value in real time. High-pressure gas released from the test housing 9 enters the central cylinder 806. The central cylinder 806 has only one outlet 808 at the top, from which the gas is discharged into the radial channel 802 on the right side, and then into the product under test for pressure strength testing. The radial channels 802 in other parts are blocked by the central cylinder 806 and will not leak high-pressure gas. If the pressure of the high-pressure gas is too high, the gas pressure will push the blocking component 809 to overcome the elastic force of the buffer spring 810, thereby buffering the high-pressure gas and preventing the high-pressure gas from being released too quickly and affecting the internal threads of the product being tested. If a vibration installation environment needs to be simulated, the electric push rod 601 drives the lifting plate 602 to rise, thereby driving the drive gear 502 to move upward. The drive gear 502 is at the same height as the upper driven plate 708. Therefore, the rotation of the drive gear 502 will periodically drive the upper driven plate 708. The upper driven plate 708 slides on the upper rod 706, compressing the upper spring 707. After moving, the upper driven plate 708 no longer contacts the drive gear 502. Due to the lack of drive from the drive gear 502, under the elastic force of the upper spring 707, the upper driven plate 708 moves again to return to the position where it can contact the drive gear 502, thereby realizing the periodic drive of the upper driven plate 708. The striking plate 709 on the upper driven plate 708 can periodically strike the mounting cylinder 803, simulating the adapter product being in a vibration environment, which conforms to the actual installation conditions and simulates the vibration usage environment. When the position of the product under test needs to be changed, the electric push rod 601 drives the lifting plate 602 to reset. When the restricted positioning state is released, the electromagnet 710 is energized, and its magnetic force can attract the moving block 704. The moving block 704 drives the positioning tooth 705 away from the driven ring tooth 503, and the driven ring tooth 503 can rotate normally. The drive motor 501 works, driving the drive gear 502 to rotate. When the drive gear 502 meshes with the driven ring tooth 503, it can drive the driven ring tooth 503 to rotate, thereby driving the mounting plate 801 to rotate, thus achieving the purpose of changing the position of the product under test. When the electromagnet 710 is de-energized, under the elastic force of the positioning spring 703, it can drive the moving block 704 to move on the positioning rod 702. The positioning tooth 705 can be locked into the driven ring tooth 503, restricting and fixing the driven ring tooth 503; providing sufficient position and time for installing and removing the product under test.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure gauge adapter pressure bearing strength testing device, characterized in that, include: A frame (1) is used to provide a detection position; The detection housing (9) is fixedly installed on the frame (1) and is used to transmit high-pressure gas; Injection tube (2), which is fixedly installed on one side of the detection housing (9) and is used to connect to an external high-pressure air source; The shut-off valve (3) is fixedly installed on the injection pipe (2) and is used to control the on / off of high-pressure gas. Refer to table (4), which is fixedly installed on the detection housing (9); Lifting assembly (6), which is fixedly installed on the frame (1) and is used to provide lifting function; Mounting component (8), which is disposed on the test housing (9) and is used to provide mounting positions for multiple products under test; The drive assembly (5) is located on the lifting component of the lifting assembly (6) and is used to drive the mounting assembly (8) to rotate. Positioning component (7), which is disposed on the detection housing (9), is used to limit the positioning installation component (8).

2. The pressure gauge adapter pressure bearing strength testing device according to claim 1, characterized in that: The lifting assembly (6) includes an electric push rod (601) fixedly installed on the frame (1), and the output end of the electric push rod (601) is fixedly connected to a lifting plate (602).

3. The pressure gauge adapter pressure bearing strength testing device according to claim 2, characterized in that: The mounting assembly (8) includes a central cylinder (806) fixedly mounted on the detection housing (9). A mounting plate (801) is rotatably connected to the upper part of the central cylinder (806). Mounting cylinders (803) are uniformly fixedly connected to the circumference of the mounting plate (801). An adapter (805) is mounted on the mounting cylinder (803). A pressure gauge (804) is fixedly mounted on the adapter (805). A radial channel (802) is provided inside the mounting plate (801). An air outlet (808) is provided at the upper part of the central cylinder (806). The air outlet (808) is connected to the radial channel (802) on the right side.

4. The pressure gauge adapter pressure bearing strength testing device according to claim 3, characterized in that: A blocking member (809) is slidably connected inside the central cylinder (806), and a buffer spring (810) is fixedly connected between the upper part of the blocking member (809) and the central cylinder (806).

5. The pressure gauge adapter pressure bearing strength testing device according to claim 4, characterized in that: The lower part of the blocking member (809) is provided with a cone (8091), which covers half of the air outlet (808); the upper part of the central cylinder (806) is provided with a sealing ring (807).

6. The pressure gauge adapter pressure bearing strength testing device according to claim 3, characterized in that: The drive assembly (5) includes a drive motor (501) fixedly mounted on the lifting plate (602). The output end of the drive motor (501) is fixedly connected to a drive gear (502), and the outer side of the drive gear (502) is meshed with a driven ring gear (503). The driven ring gear (503) is fixedly connected to the mounting plate (801).

7. The pressure gauge adapter pressure bearing strength testing device according to claim 6, characterized in that: The positioning component (7) includes a fixed base (701) fixedly installed on the detection housing (9). A positioning rod (702) and an upper rod (706) are fixedly connected to one side of the fixed base (701) near the mounting component (8). A moving block (704) is slidably connected to the positioning rod (702). A positioning spring (703) is sleeved on the positioning rod (702) and located between the moving block (704) and the fixed base (701). A positioning tooth (705) is fixedly connected to one side of the moving block (704) away from the fixed base (701). An electromagnet (710) is fixedly installed in the middle of the fixed base (701). The electromagnet (710) can attract the moving block (704) when it is energized.

8. The pressure gauge adapter pressure bearing strength testing device according to claim 7, characterized in that: An upper driven plate (708) is slidably connected to the upper rod (706). An upper spring (707) is sleeved on the upper rod (706) and located between the upper driven plate (708) and the fixed seat (701). A striking plate (709) is fixedly connected to the side of the upper driven plate (708) away from the fixed seat (701). The striking plate (709) can strike the mounting cylinder (803). The upper driven plate (708) can be driven by the drive gear (502).

9. A method for testing the pressure bearing strength of a pressure gauge adapter, comprising the pressure bearing strength testing equipment for pressure gauge adapters as described in any one of claims 1-8, characterized in that, Includes the following steps: Step 1: Install the product to be tested onto the mounting assembly (8); Step 2: Open the shut-off valve (3) and inject the external high-pressure air source; Step 3: Start the lifting component (6) to make the drive component (5) and the positioning component (7) reach the same height, and start the drive component (5) to simulate the vibration environment; Step 4: Start the lifting component (6) to drive the drive component (5) to be at the same height as the installation component (8), release the positioning component (7) from positioning, start the drive component (5) to change the position of the product under test, and position the positioning component (7) to reposition.

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