A stainless steel seamless steel pipe pressure-resistant high-efficiency detection equipment
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG DINGSHANG STAINLESS STEEL CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-05-29
Smart Images

Figure CN224303462U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of seamless steel pipe technology, specifically to a high-efficiency pressure resistance testing device for stainless steel seamless steel pipes. Background Technology
[0002] Stainless steel seamless pipe is a long strip of steel with a hollow cross section and no seams around its perimeter. It is a steel pipe that is resistant to corrosion from weak corrosive media such as air, steam, and water, as well as chemical corrosive media such as acids, alkalis, and salts. It is also known as stainless acid-resistant steel pipe. Stainless steel seamless pipe needs to undergo pressure resistance testing (also known as hydrostatic test) before leaving the factory. A series of professional equipment is required to ensure the safety, accuracy, and compliance with standard requirements of the test.
[0003] High-pressure water pumps are required when testing stainless steel seamless pipes. Common high-pressure water pumps lack independent limit switches, and the pump body will vibrate during the test. When the equipment vibrates for a long time, gaps will appear between the stainless steel seamless pipe and the water pump. When gaps appear between the stainless steel seamless pipe and the water pump, the measurement standard will be affected, resulting in inaccurate measurement data. Utility Model Content
[0004] The purpose of this invention is to provide a high-efficiency pressure resistance testing device for seamless stainless steel pipes to solve the above-mentioned problems.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency pressure resistance testing device for seamless stainless steel pipes, comprising;
[0006] The high-pressure pump body has arc-shaped sheet metal fixedly installed on the bottom of both sides of the high-pressure pump body, a handle is installed at the top of the arc-shaped sheet metal, and a pin is installed at the bottom of the handle.
[0007] A partition is provided at the top of the arc-shaped sheet metal, and protective plates are symmetrically fixed at both ends of the inner wall of the partition, and springs are fixedly provided on the outer side of the protective plates.
[0008] One end of the spring is fixedly provided with a limiting plate, and a ball bearing is rotatably connected to the outer side of the limiting plate.
[0009] Preferably, one end of the handle is rotatably connected to the top of one end of the arc-shaped sheet metal 20 via a first rotating shaft, and the top of the pin is rotatably connected to the bottom of the handle via a second rotating shaft.
[0010] Preferably, the top of the arc-shaped sheet metal is provided with a through groove for the partition to be fitted and fixed, and the two limiting plates symmetrically form round holes.
[0011] Preferably, the pin passes through the through groove and is movably connected to the arc-shaped sheet metal, and the outer side of the pin is in contact with the outer side of the limiting plate and the ball.
[0012] Preferably, a U-shaped limiting member is fixedly provided at one end of the bottom of the high-pressure pump body, a wheel is provided on one side of the U-shaped limiting member, a protrusion is rotatably connected to one side of the wheel, and a sliding groove is provided on one side of the U-shaped limiting member for the protrusion to slide.
[0013] Preferably, a latch is provided on the outside of the U-shaped limiting member, and a through groove is provided on the outside of the U-shaped limiting member, and the latch passes through the through groove and is embedded into the inside of the protrusion to engage and fix it.
[0014] Preferably, an anti-slip sleeve is fitted and fixed to the outer side of the handle, and an anti-slip groove is provided on the outer side of the anti-slip sleeve.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. When it is necessary to limit the high-pressure pump body, press down the handle so that the handle moves the pin downward. When the pin moves downward, it will embed into the soil, thereby limiting the high-pressure pump body.
[0017] 2. The spring and protective plate limit the movement of the pin, preventing it from tilting left or right when moving downwards.
[0018] 3. When limiting the high-pressure pump body, the gear can be slid towards the top of the U-shaped limiting part through the protrusion and the slide groove. When the wheel is no longer in contact with the ground, the gear can be limited to one side of the U-shaped limiting part by the bolt. With the above equipment, the high-pressure pump body can avoid the machine body from shaking during startup, which would cause gaps between the stainless steel seamless steel pipe and the water pump, affecting the measurement standard and resulting in inaccurate measurement data. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below;
[0021] Figure 3 This is a schematic diagram of a partial three-dimensional structure of the device of this utility model;
[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of a partial explosion of the equipment of this utility model. Figure 1 ;
[0023] Figure 5 This is a schematic diagram of the three-dimensional structure of a partial explosion of the equipment of this utility model. Figure 2 .
[0024] In the diagram: 10. High-pressure pump body; 11. U-shaped limiter; 12. Wheel; 13. Clamp; 20. Arc-shaped sheet metal; 21. Handle; 22. Pin; 23. Anti-slip sleeve; 24. Through groove; 25. Partition; 26. Protective plate; 27. Spring; 28. Limiting plate; 29. Ball bearing. Detailed Implementation
[0025] 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.
[0026] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0027] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0028] Please see Figure 1-5 This utility model provides a technical solution: a high-efficiency pressure resistance testing device for stainless steel seamless steel pipes, including a high-pressure pump body 10. Arc-shaped sheet metal 20 is welded and fixed to the bottom of both sides of the high-pressure pump body 10. A handle 21 is rotatably connected to the top of the arc-shaped sheet metal 20 through a first rotating shaft, and a pin 22 is rotatably connected to the bottom of the handle 21 through a second rotating shaft. When the handle 21 is lifted upward, the handle 21 will be rotatably connected to the arc-shaped sheet metal 20. When the handle 21 is rotatably connected to the arc-shaped sheet metal 20, the pin 22 will be lifted upward.
[0029] A partition plate 25 is fitted and fixed at the top of the arc-shaped sheet metal 20. Protective plates 26 are symmetrically welded and fixed at both ends of the inner wall of the partition plate 25. A spring 27 is welded and fixed to the outer side of the protective plate 26. A limit plate 28 is welded and fixed to one end of the spring 27. The spring 27 ensures that the outer side of the pin 22 is always in contact with the outer side of the limit plate 28. A ball bearing 29 is rotatably connected to the outer side of the limit plate 28. The ball bearing 29 makes the pin 22 move more smoothly when it moves downward.
[0030] Furthermore, one end of the handle 21 is rotatably connected to the top of one end of the arc-shaped sheet metal 20 via a first rotating shaft, and the top of the pin 22 is rotatably connected to the bottom of the handle 21 via a second rotating shaft.
[0031] Furthermore, the top of the arc-shaped sheet metal 20 is provided with a through groove 24 for the partition plate 25 to be fitted and fixed, and two limiting plates 28 are symmetrically formed with round holes. When the pin 22 moves up and down, the round holes formed by the two limiting plates 28 will help the pin 22 to move up and down without tilting.
[0032] Furthermore, the pin 22 passes through the through groove 24 and is movably connected to the arc-shaped sheet metal 20, and the outer side of the pin 22 is in contact with the outer side of the limiting plate 28 and the ball 29.
[0033] Furthermore, a U-shaped limiting member 11 is welded and fixed to one end of the bottom of the high-pressure pump body 10. A wheel 12 is provided on one side of the U-shaped limiting member 11. A protrusion is rotatably connected to one side of the wheel 12. A sliding groove is provided on one side of the U-shaped limiting member 11 for the protrusion to slide and connect. The protrusion can slide and connect with the U-shaped limiting member 11 up and down on one side of the U-shaped limiting member 11 through the sliding groove.
[0034] Furthermore, a latch 13 is provided on the outside of the U-shaped limiting member 11. A through groove is provided on the outside of the U-shaped limiting member 11, and the latch 13 passes through the through groove and is embedded into the inside of the protrusion to be fixed therewith. When the protrusion on one side of the wheel 12 slides up and down with the U-shaped limiting member 11, it can be limited by the latch 13 and the through groove.
[0035] Furthermore, an anti-slip sleeve 23 is fitted and fixed on the outer side of the handle 21, and an anti-slip groove is provided on the outer side of the anti-slip sleeve 23. The anti-slip sleeve 23 prevents the handle 21 from slipping when using it, and the anti-slip groove adds another layer of anti-slip function to the outer side of the anti-slip sleeve 23.
[0036] Working principle:
[0037] When the high-pressure pump body 10 needs to be limited, press down the handle 21 so that one end of the handle 21 rotates with the top of the arc-shaped sheet metal 20. When the handle 21 rotates with the top of the arc-shaped sheet metal 20, the pin 22 will move towards the bottom of the arc-shaped sheet metal 20 within the symmetrical circular holes formed by the two limiting plates 28. Therefore, the pin 22 will be firmly embedded in the soil. When the handle 21 moves, the two limiting plates 28 will slightly limit it through the spring 27, so that the pin 22 will not tilt to the left or right when it moves. And through the ball bearing 29, the pin 22 will move more smoothly when it moves down or up.
[0038] Furthermore, the partition 25 and the arc-shaped sheet metal 20 are fixed together by the through groove 24. When the spring 27 ages, the partition 25 can be pushed upwards, and the partition 25 will fall off from the through groove 24. After falling off, a new partition 25 can be installed to continue using it. When the high-pressure pump body 10 is not limited, the handle 21 is lifted upwards. The handle 21 will drive the pin 22 to separate from the soil. When the handle 21 is lifted upwards, the handle 21 will make a 90-degree angle with the arc-shaped sheet metal 20. Therefore, the bottom of the pin 22 is flush with the bottom of the arc-shaped sheet metal 20.
[0039] When using the limiting device, the wheel 12 can be slid upward to separate the wheel 12 from the ground. When the wheel 12 is separated from the ground, the wheel 12 can be limited to one side of the U-shaped limiting member 11 by the latch 13.
[0040] Furthermore, when the high-pressure pump body 10 is used on a cement floor, the bottom of the high-pressure pump body 10 will rub against the ground, thus preventing the high-pressure pump body 10 from slipping during startup.
[0041] 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 high-efficiency pressure resistance testing device for seamless stainless steel pipes, characterized in that: include; The high pressure pump body (10) has an arc-shaped sheet metal (20) fixedly installed at the bottom of both sides of the high pressure pump body (10), a handle (21) is installed at the top of the arc-shaped sheet metal (20), and a pin (22) is installed at the bottom of the handle (21). A partition (25) is provided at the top of the arc-shaped sheet metal (20), and protective plates (26) are symmetrically fixed at both ends of the inner wall of the partition (25), and springs (27) are fixedly provided on the outer side of the protective plates (26). One end of the spring (27) is fixedly provided with a limiting plate (28), and a ball bearing (29) is rotatably connected to the outer side of the limiting plate (28).
2. The high-efficiency pressure resistance testing equipment for stainless steel seamless pipes according to claim 1, characterized in that: One end of the handle (21) is rotatably connected to the top of one end of the arc-shaped sheet metal 20 via a first rotating shaft, and the top of the pin (22) is rotatably connected to the bottom of the handle (21) via a second rotating shaft.
3. The high-efficiency pressure resistance testing equipment for stainless steel seamless pipes according to claim 1, characterized in that: The top of the arc-shaped sheet metal (20) is provided with a through groove (24) for the partition plate (25) to be fitted and fixed, and the two limiting plates (28) form round holes symmetrically.
4. The high-efficiency pressure resistance testing equipment for stainless steel seamless pipes according to claim 1, characterized in that: The pin (22) passes through the through groove (24) and is movably connected to the arc-shaped sheet metal (20), and the outer side of the pin (22) is in contact with the outer side of the limiting plate (28) and the ball (29).
5. The high-efficiency pressure resistance testing equipment for stainless steel seamless pipes according to claim 1, characterized in that: A U-shaped limiting member (11) is fixedly provided at one end of the bottom of the high-pressure pump body (10). A wheel (12) is provided on one side of the U-shaped limiting member (11). A protrusion is rotatably connected to one side of the wheel (12), and a sliding groove for the protrusion to slide is provided on one side of the U-shaped limiting member (11).
6. The high-efficiency pressure resistance testing equipment for stainless steel seamless pipes according to claim 5, characterized in that: A latch (13) is provided on the outside of the U-shaped limiting member (11). A through groove is provided on the outside of the U-shaped limiting member (11), and the latch (13) passes through the through groove and is embedded into the inside of the protrusion to be fitted and fixed therewith.
7. The high-efficiency pressure resistance testing equipment for stainless steel seamless pipes according to claim 1, characterized in that: The handle (21) is fitted with an anti-slip sleeve (23) on its outer side, and the anti-slip sleeve (23) has an anti-slip groove on its outer side.