Safety detection device for gas cylinder water pressure front and back axial radial deformation
By designing a device for detecting the radial deformation of gas cylinders under water pressure, which includes a gauge body, a top cover, an adapter, and a linear displacement sensor, the safety hazards and insufficient accuracy of traditional manual measurement are solved, and high-precision and safe measurement of gas cylinder deformation is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAONING METAL TECH
- Filing Date
- 2025-03-31
- Publication Date
- 2026-05-15
AI Technical Summary
Traditional manual measurement of the radial deformation of gas cylinders before and after water pressure has safety hazards and low accuracy, making it difficult to meet the high-precision requirements of modern gas cylinder safety testing.
A safety inspection device was designed, comprising a fixture body, a top cover, an adapter, a linear displacement sensor, and a digital display instrument. It avoids manual contact with the high-pressure gas cylinder by remotely reading and accurately measuring the axial and radial deformation of the gas cylinder. The measurement is performed using a linear displacement sensor in conjunction with a digital display instrument.
It improves measurement safety and accuracy, reduces safety risks for operators, and enables accurate measurement of axial and radial deformation of gas cylinders before and after water pressure, providing reliable data for gas cylinder safety assessment.
Smart Images

Figure CN224247463U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gas cylinder testing technology, specifically a safety testing device for the radial deformation of a gas cylinder before and after water pressure. Background Technology
[0002] In the field of gas cylinder safety inspection, accurately measuring the radial deformation of the cylinder before and after water pressure is crucial. The traditional method involves manual measurement using calipers; however, this method has several serious problems. Firstly, because gas cylinder water pressure is typically high (commonly reaching 52.5 MPa), manual measurement requires operators to be in close contact with the high-pressure cylinder, posing a significant safety risk and resulting in poor safety. Secondly, manual measurement requires marking corresponding parts of the cylinder, which is highly susceptible to human error, leading to imprecise measurements and large errors. This fails to meet the high-precision requirements of modern gas cylinder safety inspection. Therefore, there is an urgent need to develop a safer and more accurate device for detecting the radial deformation of the cylinder before and after water pressure. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a safety detection device for the radial deformation of a gas cylinder before and after water pressure, which solves the problems of time-consuming, labor-intensive, and potentially unsafe manual inspection.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a safety detection device for the radial deformation of a gas cylinder under water pressure, comprising a fixture body and a gas cylinder body disposed within the fixture body. The fixture body is connected to a top cover via a fixing assembly. The top of the top cover is provided with an adapter that can be connected to the gas cylinder. The top of the top cover is provided with an upper sensor support. The outer wall of the fixture body is provided with a side sensor support. Linear displacement sensors are provided on both the upper sensor support and the side sensor support. Both the top cover and the fixture body are provided with through holes through which the sensing element of the linear displacement sensor passes.
[0005] Preferably, the fixing assembly includes a plurality of double-ear seats disposed on the upper end of the side wall of the fixture body along the circumferential direction. A pressure rod is fixedly installed on the double-ear seats by a threaded tapered locating pin. The side wall of the upper cover is provided with a strip groove corresponding to the pressure rod along the circumferential direction. The upper end of the pressure rod passes through the strip groove and is screwed with a nut by a thread.
[0006] Preferably, the bottom of the inspection fixture body is provided with an elastic auxiliary support for supporting the gas cylinder body.
[0007] Preferably, the lower end of the gauge body is provided with multiple heavy-duty adjustable anti-slip feet arranged in a circular array.
[0008] Preferably, a sealing gasket is provided at the connection between the lower end of the adapter and the gas cylinder.
[0009] Beneficial effects
[0010] This utility model provides a safety detection device for the radial deformation of a gas cylinder before and after water pressure, which has the following advantages:
[0011] This testing device places the gas cylinder completely inside the main body of the testing fixture. The measuring personnel can read and record the data at the far end of the gas cylinder through the connected 3m data transmission line without having to get close to the gas cylinder which is under high pressure. Compared with traditional manual measurement, this greatly reduces the safety risks faced by the operator and improves the safety and reliability of the measurement process.
[0012] The measurement is performed using a linear displacement sensor in conjunction with a digital display instrument, achieving a measurement accuracy of up to 0.01 mm. This measurement method avoids errors caused by marking and human operation in manual measurement, and can accurately obtain data on the radial deformation of the gas cylinder before and after water pressure, providing a reliable basis for the safety assessment of the gas cylinder. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model.
[0014] Figure 2 This is a schematic diagram of the main structure of this utility model.
[0015] Figure 3 This is a top view of the structure of this utility model.
[0016] Figure 4 This is an enlarged structural schematic diagram of component I of this utility model.
[0017] Figure 5 This is an enlarged structural schematic diagram of the present invention (II).
[0018] Figure 6 This is an enlarged structural schematic diagram of the present invention.
[0019] In the diagram: 1. Inspection fixture body; 2. Gas cylinder body; 3. Top cover; 4. Adapter; 5. Upper sensor support; 6. Side sensor support; 7. Linear displacement sensor; 8. Double ear seat; 9. Internal threaded cone angle positioning pin; 10. Pressure rod; 11. Nut; 12. Elastic auxiliary support seat; 13. Heavy-duty adjustable anti-slip foot cup; 14. Sealing gasket. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1-6 This utility model provides a technical solution: a safety detection device for the radial deformation of a gas cylinder before and after water pressure, including a fixture body 1 and a gas cylinder body 2 disposed within the fixture body 1. The fixture body 1 is connected to a top cover 3 via a fixing component. The top of the top cover 3 is provided with an adapter 4 that can be connected to the gas cylinder. The top of the top cover 3 is provided with an upper sensor support 5. The outer wall of the fixture body 1 is provided with a side sensor support 6. Both the upper sensor support 5 and the side sensor support 6 are provided with linear displacement sensors 7. Both the top cover 3 and the fixture body 1 are provided with through holes for the sensing element of the linear displacement sensor 7 to pass through.
[0022] By adopting the above technical solution, the fixture body 1 serves as the main frame of the device, used to place the gas cylinder body 2. The upper cover 3 is connected to the fixture body 1 through a fixing component to form a closed measurement space. The adapter 4 is used to connect the gas cylinder. The upper sensor support 5 and the side sensor support 6 are respectively installed on the fixture body 1 and the upper cover 3 to fix the linear displacement sensor 7. The sensing element of the linear displacement sensor 7 passes through the through hole of the upper cover 3 and the fixture body 1 and contacts the measured point of the gas cylinder. It senses the axial and radial deformation of the gas cylinder in real time and transmits the data to an external digital display instrument for display, realizing the accurate measurement of the gas cylinder deformation and providing reliable data support for the safety assessment of the gas cylinder.
[0023] In this embodiment, the fixing component includes a plurality of double-ear seats 8 disposed on the upper end of the side wall of the fixture body 1 along the circumferential direction. A pressure rod 10 is fixedly installed on the double-ear seat 8 by an internally threaded tapered locating pin 9. The side wall of the upper cover 3 is provided with a strip groove that corresponds one-to-one with the pressure rod 10 along the circumferential direction. The upper end of the pressure rod 10 passes through the strip groove and is screwed with a nut 11 by thread.
[0024] By adopting the above technical solution, the double-ear seat 8 of the fixing component is set on the upper end of the side wall of the fixture body 1 along the circumferential direction. The pressure rod 10 is fixed on the double-ear seat 8 by the internal threaded tapered locating pin 9. The strip groove on the side wall of the upper cover 3 corresponds one-to-one with the pressure rod 10. After the upper end of the pressure rod 10 passes through the strip groove, the upper cover 3 and the fixture body 1 are tightly connected together by screwing on the nut 11, which realizes the firm connection between the upper cover 3 and the fixture body 1 and ensures the stability of the device during the measurement process.
[0025] In this embodiment, the bottom of the inspection fixture body 1 is provided with an elastic auxiliary support seat 12 for supporting the gas cylinder body 2.
[0026] By adopting the above technical solution, the elastic auxiliary support seat 12 is set at the bottom of the inspection fixture body 1 to provide stable support for the gas cylinder.
[0027] In this embodiment, the lower end of the fixture body 1 is provided with a plurality of heavy-duty adjustable anti-slip feet 13 arranged in a ring array.
[0028] By adopting the above technical solution, the heavy-duty adjustable anti-slip feet 13 are arranged in a ring array at the lower end of the fixture body 1. By adjusting the height of the feet, the fixture body 1 can be kept horizontal. The anti-slip design at the bottom of the feet increases the friction between the device and the ground, preventing the device from sliding during measurement.
[0029] In this embodiment, a sealing gasket 14 is provided at the connection between the lower end of the adapter 4 and the gas cylinder.
[0030] By adopting the above technical solution, the airtightness of the gas cylinder during the water pressure test is ensured, preventing liquid leakage from posing a safety threat to the measurement environment and operators, while ensuring the accuracy of the measurement data and avoiding measurement errors caused by leakage.
[0031] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.
[0032] Example: Place the gas cylinder on the elastic auxiliary support seat 12 at the bottom of the fixture body 1, adjust the position of the gas cylinder to be in the center of the fixture body 1, install the sealing gasket 14 at the connection between the lower end of the adapter 4 and the gas cylinder, then connect the gas cylinder and the adapter 4 together and tighten them to ensure the sealing of the connection. Fix the pressure rod 10 on the double-ear seat 8 through the internal thread tapered locating pin 9, place the upper cover 3 on the fixture body 1 so that the pressure rod 10 passes through the strip groove on the side wall of the upper cover 3, and then tighten the nut 11 to make the upper cover 3 and the fixture body 1 tightly connected to ensure the stability of the device. Install the linear displacement sensor 7 on the upper sensor support 5 and the side sensor support 6 so that the sensing element of the sensor is in contact with the measured point of the gas cylinder. Connect the digital display instrument to the linear displacement sensor 7 and reset the reading of the digital display instrument to zero to complete the debugging work before measurement. Start pressurizing the gas cylinder to the required test pressure. During this process, the linear displacement sensor 7 senses the radial deformation of the gas cylinder in real time and transmits the data to the digital display instrument. Read the values of the digital display instruments corresponding to each position. These values are the radial deformation of the cylinder after water pressure. Record the measured data. After the measurement is completed, first release the pressure in the cylinder, then loosen the nut 11, remove the top cover 3, take out the cylinder, disassemble the linear displacement sensor 7 and the digital display instrument, and clean and maintain the device for the next use.
[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A safety detection device for the radial deformation of a gas cylinder before and after water pressure, comprising a gauge body (1) and a gas cylinder body (2) disposed within the gauge body (1), characterized in that, The main body (1) of the inspection fixture is connected to the top cover (3) by a fixing component. The top cover (3) is provided with an adapter (4) that can be connected to the gas cylinder body (2). The top cover (3) is provided with an upper sensor support (5). The outer wall of the main body (1) of the inspection fixture is provided with a side sensor support (6). Both the upper sensor support (5) and the side sensor support (6) are provided with linear displacement sensors (7). Both the top cover (3) and the main body (1) of the inspection fixture are provided with through holes for the sensing element of the linear displacement sensor (7) to pass through.
2. The safety detection device for radial deformation of a gas cylinder before and after water pressure as described in claim 1, characterized in that, The fixing assembly includes multiple double-ear seats (8) arranged along the circumferential direction on the upper end of the side wall of the fixture body (1). A pressure rod (10) is fixedly installed on the double-ear seat (8) by an internal threaded tapered locating pin (9). The side wall of the upper cover (3) is provided with a strip groove that corresponds one-to-one with the pressure rod (10) along the circumferential direction. The upper end of the pressure rod (10) passes through the strip groove and is screwed with a nut (11) by thread.
3. The safety detection device for radial deformation of a gas cylinder before and after water pressure as described in claim 2, characterized in that, The bottom of the inspection fixture body (1) is provided with an elastic auxiliary support seat (12) for supporting the gas cylinder body (2).
4. The safety detection device for radial deformation of a gas cylinder before and after water pressure as described in claim 1, characterized in that, The lower end of the main body (1) of the inspection fixture is provided with multiple heavy-duty adjustable anti-slip feet (13) arranged in a ring array.
5. A safety detection device for radial deformation of a gas cylinder before and after water pressure, as described in claim 2, is characterized in that... A sealing gasket (14) is provided at the connection between the lower end of the adapter (4) and the gas cylinder.