Pressure resistance detection device for seamless steel pipe

Abstract

The invention discloses a pressure resistance detection device for a seamless steel pipe, and belongs to the technical field of steel pipe pressure resistance testing, the pressure resistance detection device comprises a machine room, detection shells are symmetrically installed in the machine room, a plurality of detection assemblies used for detecting a steel pipe are fixedly installed in the detection shells, and the left end of the machine room is fixedly connected with an equipment room; a fixing ring in the equipment bin is connected with a positioning motor. According to the invention, when the steel pipe deforms under water pressure, the steel pipe expands, the expanded steel pipe pushes the detection belt so that the detection belt pulls the winding wheel to rotate, and the angle sensor is triggered when the winding wheel rotates, so that it is judged that the steel pipe begins to deform at the moment, and pressure resistance data of the steel pipe can be obtained by recording the water pressure at the moment; the steel pipe is completely wrapped by the plurality of detection belts, so that the expansion deformation of any surface of the steel pipe can be measured, and the measurement accuracy is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel pipe pressure resistance testing, in particular to a pressure resistance testing device for seamless steel pipes. Background Art

[0002] Seamless steel pipe is a steel pipe made by punching a whole round steel bar without welds on the surface. According to the production method, seamless steel pipe can be divided into hot-rolled seamless steel pipe, cold-rolled seamless steel pipe, cold-drawn seamless steel pipe, extruded seamless steel pipe, jacking pipe, etc. Seamless steel pipe is mainly used as petroleum geological drilling pipe, cracking pipe for petrochemical industry, boiler pipe, bearing pipe and high-precision structural steel pipe for automobile, tractor and aviation; Seamless steel pipes are in a critical position when in use. Therefore, in order to ensure that seamless steel pipes do not bend or deform due to pressure during use, pressure tests are carried out before seamless steel pipes are used. Pressure tests generally include water pressure method, direct calculation method and ultrasonic detection method. The water pressure method is currently commonly used. However, when using the water pressure method to detect seamless steel pipes, it is impossible to conduct a full range of inspections on the surface of seamless steel pipes, and it is impossible to fully detect the surface deformation of seamless steel pipes, which will lead to inaccurate test data. A Chinese patent discloses a pressure test device for seamless steel pipes (authorization announcement number CN221707103U). This patented technology can perform multi-directional tests on seamless steel pipes by setting a horizontal fixed block, a vertical fixed block and a motor. During the horizontal pressure test, the steel pipe is placed horizontally in two horizontal fixed blocks for fixing, and then the test is performed. During the vertical test, the steel pipe is placed vertically between two vertical fixed blocks for fixing, and then the motor is controlled to drive the rotating plate to rotate half a circle, so that the steel pipe moves to the bottom of the pressure block for testing. The steel pipe can be subjected to horizontal and vertical pressure tests, which is convenient for comprehensively evaluating the overall quality of the steel pipe and reducing the possibility of potential defects being ignored. However, this patent can only apply pressure to the specified part during the test, and cannot perform pressure tests on the surface of the steel pipe in all directions. Therefore, the present invention provides a pressure test device for seamless steel pipes to solve the above-mentioned problems. Summary of the invention

[0003] The object of the present invention is to provide a pressure resistance detection device for seamless steel pipes to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: A pressure-resistant detection device for seamless steel pipes, including a machine chamber. Inside the machine chamber, detection shells are symmetrically installed. Inside the detection shells, several detection components for detecting steel pipes are fixedly installed. The left end of the machine chamber is fixedly connected to an equipment chamber. Inside the equipment chamber, a positioning motor is fixedly connected by a fixed ring. Positioning components are installed on the output shaft of the positioning motor and the inner right side wall of the machine chamber. The right end of the machine chamber is fixedly connected to a pressurization chamber. Water is stored inside the pressurization chamber, and a water pump is also fixedly connected inside. The output pipe of the water pump is connected to the positioning component through a pressurization pipe.

[0005] As a further scheme of the present invention, the positioning component includes a fixed cover. The outside of the fixed cover is fixedly connected with a contact plate. The two fixed covers are respectively fixedly connected to the side walls of the positioning motor and the machine chamber.

[0006] As a further scheme of the present invention, a water inlet is opened at the upper end of the fixed cover, and the water inlet is connected to the pressurization pipe. Support columns are installed on one side of the two fixed covers close to each other. The steel pipe is sleeved outside the two support columns. A sealing sleeve is fixedly connected between the fixed cover and the support column. Water is added into the water inlet through the pressurization pipe to fill the sealing sleeve, so that the sealing sleeve expands and then seals the inside of the steel pipe.

[0007] As a further scheme of the present invention, and in order to make the sealing sleeve applicable to steel pipes with different inner diameters, a pressure relief pipe is fixedly connected inside the support column. A fixed sleeve is slidably connected inside the pressure relief pipe. A pressure relief spring is arranged between the fixed sleeve and the pressure relief pipe. As the water pressure increases, the fixed sleeve can push the pressure relief spring to compress it, so that the pressure relief pipe can inject water into the steel pipe.

[0008] As a further scheme of the present invention, the detection component includes several detection frames. The several detection frames are respectively fixedly connected to the two detection shells, and the several detection frames are evenly distributed in a circle inside the two detection shells. Support frames are symmetrically and slidably connected to the side walls of the detection frames. A detection belt for detecting the deformation of the steel pipe is sleeved on the support frames.

[0009] As a further scheme of the present invention, a limiting groove is opened inside the support frame. The detection belt is located inside the limiting groove. The detection belt can be limited by the limiting groove to prevent the detection belt from derailing.

[0010] As a further scheme of the present invention, an equipment shell is also fixedly connected inside the detection frame. Reel wheels are symmetrically and rotatably connected inside the equipment shell. The reel wheels are rotatably connected to the detection frame through connecting plates. A torsion spring and an angle sensor are arranged at the rotational connection of the reel wheels and the connecting plates. The two ends of the detection belt pass through the equipment shell and are wound outside the reel wheels.

[0011] As a further solution of the present invention, two metal conductive sheets are fixedly connected inside one of the winding wheels in each of the detection frames, and a power supply is installed inside the winding wheel with the metal conductive sheets. The positive and negative poles of the power supply are respectively fixedly connected to the metal conductive sheets, and a number of conductive wires are evenly arranged in the detection belt.

[0012] As a further solution of the present invention, one end of each of the two ends of the conductive wire is fixedly connected to one of the metal conductive sheets inside the winding wheel, and the other end is fixedly connected to the outer wall of another winding wheel. The support frames on both sides of the detection frame are respectively fixedly connected to another metal conductive sheet through connecting wires. Buzzers are fixedly connected inside both of the support frames, and the positive and negative poles of the buzzers are respectively connected to the connecting wires.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. When the present invention is in use, when the steel pipe deforms under water pressure, the steel pipe will expand. At this time, the expanded steel pipe will push the detection belt, and then the detection belt will pull the winding wheel to rotate. When the winding wheel rotates, the angle sensor will be triggered, so as to judge that the steel pipe has started to deform at this time. By recording the water pressure at this time, the pressure resistance data of the steel pipe can be obtained. By comprehensively wrapping the steel pipe with a number of detection belts, the expansion deformation of any surface of the steel pipe can be measured, thereby increasing the measurement accuracy.

[0014] 2. When the present invention is in use, when the steel pipe ruptures due to pressure, water will flow out. The flowing water will make the connection between a number of conductive wires and the support frame, and then trigger the buzzer, so as to judge that the steel pipe has a crack. By this method, the maximum bearing capacity of the steel pipe can be recorded. By this method, the rupture of the steel pipe can be detected immediately, thereby increasing the detection accuracy. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of a pressure resistance detection device for seamless steel pipes.

[0016] Figure 2 It is an exploded view of a pressure resistance detection device for seamless steel pipes.

[0017] Figure 3 It is a structural diagram of the detection shell in a pressure resistance detection device for seamless steel pipes.

[0018] Figure 4 It is a structural diagram of the detection shell and the detection component in a pressure resistance detection device for seamless steel pipes.

[0019] Figure 5 It is an exploded view of the detection shell and the detection component in a pressure resistance detection device for seamless steel pipes.

[0020] Figure 6 It is a connection diagram of the steel pipe and the positioning component in a pressure resistance detection device for seamless steel pipes.

[0021] Figure 7 It is a structural diagram of a detection component in a pressure-resistant detection device for seamless steel pipes.

[0022] Figure 8 It is a structural diagram of a detection frame in a pressure-resistant detection device for seamless steel pipes.

[0023] Figure 9 It is a structural diagram of a detection belt and a conducting wire in a pressure-resistant detection device for seamless steel pipes.

[0024] Figure 10 It is a cross-sectional view of a positioning component in a pressure-resistant detection device for seamless steel pipes.

[0025] Figure 11 It is an exploded view of a positioning component in a pressure-resistant detection device for seamless steel pipes.

[0026] Figure 12 It is a cross-sectional view of a pressure relief pipe in a pressure-resistant detection device for seamless steel pipes.

[0027] Figure 13 It is a connection diagram of a conducting wire and a power source in a pressure-resistant detection device for seamless steel pipes.

[0028] In the figure: 1, machine cabin; 2, equipment cabin; 3, pressurization cabin; 4, positioning motor; 5, water pump; 6, detection shell; 7, hydraulic column; 8, closed pipe; 9, detection component; 10, positioning component; 11, steel pipe; 12, pressurization pipe; 100, fixed cover; 101, support column; 102, contact plate; 103, water inlet; 104, sealing sleeve; 105, pressure relief pipe; 106, support shell; 107, support rod; 109, pressure relief cavity; 110, pressure relief spring; 111, plugging head; 112, fixed sleeve; 113, water discharge port; 900, detection frame; 901, adjustment port; 902, sliding groove; 903, support frame; 904, limit rod; 905, limit groove; 906, detection belt; 907, equipment shell; 908, winding wheel; 909, conducting wire; 910, metal conducting sheet; 911, power source; 912, connecting wire. Specific implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment 1: Please refer toFigures 1 to 3 In an embodiment of the present invention, a pressure-resistant detection device for seamless steel pipes includes a machine chamber 1. Detection shells 6 are symmetrically installed inside the machine chamber 1. A number of detection components 9 for detecting the steel pipe 11 are fixedly installed inside the detection shells 6. The detection shells 6 can protect the detection components 9 and thus prevent the detection components 9 from shaking during detection. Before detecting the steel pipe 11, the steel pipe 11 needs to be positioned. Therefore, in order to assist the detection components 9 in detecting the steel pipe 11, an equipment chamber 2 is fixedly connected to the left end of the machine chamber 1. A positioning motor 4 is fixedly connected in a circular manner inside the equipment chamber 2. Positioning components 10 are installed on the output shaft of the positioning motor 4 and on the right inner wall of the machine chamber 1. In order to detect the compressive capacity of the steel pipe 11, water needs to be injected into the steel pipe 11, and the compressive capacity of the steel pipe 11 is detected by water pressure. Therefore, a pressurization chamber 3 is fixedly connected to the right end of the machine chamber 1. Water is stored inside the pressurization chamber 3, and a water pump 5 is also fixedly connected inside. The output pipe of the water pump 5 is connected to the positioning component 10 through a pressurization pipe 12; Please refer to Figure 4 , a cabin cover is connected to the upper end of the machine chamber 1 through a hinge, and a number of hydraulic columns 7 are fixedly connected to the ends of the cabin cover and the machine chamber 1 close to each other. More specifically, the detection shell 6 at the end close to the cabin cover is connected to the hydraulic column 7 on the cabin cover, and the detection shell 6 at the end close to the machine chamber 1 is connected to the hydraulic column 7 on the machine chamber 1; The hydraulic columns 7 are connected through a closed pipe 8. The closed pipe 8 is a flexible pipe, and the closed pipe 8 is connected to the pressurization pipe 12. An electromagnetic valve is provided at the connection between the closed pipe 8 and the pressurization pipe 12; Please refer to Figure 6 , Figure 10 , Figure 11 and Figure 12 , the positioning component 10 includes a fixed cover 100. A contact plate 102 is fixedly connected to the outside of the fixed cover 100. The two fixed covers 100 are respectively fixedly connected to the positioning motor 4 and the side wall of the machine chamber 1. More specifically, a threaded rod is fixedly connected to the output shaft of the positioning motor 4 through a coupling. A threaded sleeve is sleeved on the outside of the threaded rod. The threaded sleeve is slidably connected inside the machine chamber 1. More specifically, the threaded sleeve is fixedly connected to one of the fixed covers 100, and limiting sliders are symmetrically fixedly connected to the outer wall of the threaded sleeve. A circular channel is opened between the equipment chamber 2 and the machine chamber 1. Grooves corresponding to the limiting sliders are opened in the circular channel, and the limiting sliders are slidably connected in the grooves; The upper end of the fixed cover 100 is provided with a water inlet 103, and the water inlet 103 is connected to the pressurizing pipe 12. A solenoid valve is provided at the connection between the water inlet 103 and the pressurizing pipe 12. Support columns 101 are installed on one side of the two fixed covers 100 close to each other, and the steel pipe 11 is sleeved outside the two support columns 101. Specifically, after the steel pipe 11 is sleeved on the support column 101, the contact plate 102 will tightly lean against both ends of the steel pipe 11 with the push of the positioning motor 4, thereby simply blocking both ends of the steel pipe 11. A sealing sleeve 104 is fixedly connected between the fixed cover 100 and the support column 101. The sealing sleeve 104 is made of rubber material. Water is added into the water inlet 103 through the pressurizing pipe 12 to fill the sealing sleeve 104, so that the sealing sleeve 104 expands and seals the inside of the steel pipe 11. Specifically, please refer to Figure 10 and Figure 11 , a number of limiting support rods 107 for supporting the sealing sleeve 104 are movably connected to the side wall of the support column 101 and the outer wall of the contact plate 102 inside the sealing sleeve 104. A number of support shells 106 are also fixedly connected to the side wall of the support column 101 and the outer wall of the contact plate 102. The support rods 107 are slidably connected inside the support shells 106; by the mutual cooperation of the support rods 107 and the support shells 106, the expansion direction of the sealing sleeve 104 can be restricted, thereby increasing the contact area between the sealing sleeve 104 and the steel pipe 11. Please refer to Figure 12 , and in order to make the sealing sleeve 104 applicable to steel pipes 11 with different inner diameters, a pressure relief pipe 105 is fixedly connected inside the support column 101. A fixed sleeve 112 is slidably connected inside the pressure relief pipe 105. A pressure relief spring 110 is provided between the fixed sleeve 112 and the pressure relief pipe 105. As the water pressure increases, the fixed sleeve 112 can push the pressure relief spring 110 to compress it, so that the pressure relief pipe 105 can inject water into the steel pipe 11. Please refer to Figure 12 , specifically, a pressure relief cavity 109 is provided inside the pressure relief pipe 105. A plugging head 111 is slidably connected inside the pressure relief cavity 109. The plugging head 111 is fixedly connected to the fixed sleeve 112, and a number of water discharge ports 113 are provided on the outside of the fixed sleeve 112. As the fixed sleeve 112 moves, the water discharge ports 113 will move into the pressure relief cavity 109, so that water enters the pressure relief cavity 109 through the water discharge ports 113 and then enters the steel pipe 11. In this way, as long as the sealing sleeve 104 is not blocked when it expands outwards, the water pressure is not enough to push the fixed sleeve 112.

[0031] Embodiment 2: Please refer to Figure 4 , Figure 5 , Figure 7 , Figure 8 , Figure 9 and Figure 13, on the basis of Embodiment 1, the detection assembly 9 includes a plurality of detection frames 900. The plurality of detection frames 900 are respectively fixedly connected to the two detection shells 6, and the plurality of detection frames 900 are evenly distributed in a circular pattern within the two detection shells 6. A support frame 903 is symmetrically and slidably connected to the side wall of the detection frame 900. A detection belt 906 for detecting the deformation of the steel pipe 11 is sleeved on the support frame 903, and the detection belt 906 is not elastic; Specifically, adjustment openings 901 are symmetrically formed on the side wall of the detection frame 900. Sliding grooves 902 are symmetrically formed on the inner wall of the adjustment openings 901. Two limiting rods 904 are symmetrically and fixedly connected to the outer wall of the support frame 903. The limiting rods 904 are slidably connected within the sliding grooves 902, and a return spring is fixedly connected within the sliding grooves 902; More specifically, a limiting groove 905 is formed inside the support frame 903. The detection belt 906 is located within the limiting groove 905, and the detection belt 906 can be limited by the limiting groove 905 to prevent the detection belt 906 from derailing; An equipment shell 907 is also fixedly connected inside the detection frame 900. A winding wheel 908 is symmetrically rotatably connected inside the equipment shell 907. The winding wheel 908 is rotatably connected to the detection frame 900 through a connecting plate, and a torsion spring and an angle sensor are provided at the rotational connection of the winding wheel 908 and the connecting plate. Both ends of the detection belt 906 pass through the equipment shell 907 and are wound around the outside of the winding wheel 908; Two metal conductive sheets 910 are fixedly connected inside one of the winding wheels 908 in each detection frame 900. A power supply 911 is installed inside the winding wheel 908 with the metal conductive sheets 910. The positive and negative electrodes of the power supply 911 are respectively fixedly connected to the metal conductive sheets 910. A plurality of conductive wires 909 are evenly arranged within the detection belt 906. Specifically, no insulating layer is provided on the outside of the conductive wires 909, and when the conductive wires 909 are inside the detection belt 906, they will not contact the surface of the steel pipe 11 under the isolation of the detection belt 906. One end of each of the two ends of the conductive wire 909 is fixedly connected to one of the metal conductive sheets 910 inside the winding wheel 908, and the other end is fixedly connected to the outer wall of the other winding wheel 908. The support frames 903 on both sides of the detection frame 900 are respectively fixedly connected to the other metal conductive sheet 910 through connecting wires 912. Buzzers are fixedly connected inside both support frames 903, and the positive and negative electrodes of the buzzers are respectively connected to the connecting wires 912, that is, the same connecting wire 912 is divided into two sections, and the two sections of the connecting wires 912 close to each other are respectively connected to the positive and negative electrodes of the buzzer. More specifically, an insulating sleeve is provided on the outside of the connecting wire 912, and the connecting wire 912 on the support frame 903 far from the winding wheel 908 with the metal conductive sheets 910 passes through the equipment shell 907 and is fixedly connected to the metal conductive sheet 910 inside the other winding wheel 908; Specifically, a control mainboard is fixedly connected to the interior of the device shell 907, and a communication module and a rectifier module for transmitting signals are electrically connected to the interior of the control mainboard. The rectifier module can rectify and control the current and voltage between the power supply 911, the connecting wire 912, the metal conductive sheet 910 and the conductive wire 909.

[0032] The working principle of the present invention is: When the present invention is used, the steel pipe 11 is placed between the two support columns 101, and then the positioning motor 4 is turned on to drive the threaded rod to rotate so that the threaded rod drives the threaded sleeve to move, thereby pushing the fixed cover 100 near one end of the equipment bin 2 to move in the direction of the fixed cover 100 near one end of the pressurized bin 3, so that the steel pipe 11 is simply positioned by using the two contact plates 102; Then, the water pump 5 is turned on to transport water into the sealing sleeve 104 through the pressurized pipe 12 and the water inlet 103 (at this time, the solenoid valve between the pressurized pipe 12 and the closed pipe 8 is in a closed state). After water is injected into the sealing sleeve 104, the sealing sleeve 104 will expand. When the sealing sleeve 104 expands, it will contact the inner wall of the steel pipe 11, thereby sealing the inside of the steel pipe. After the steel pipe 11 is sealed, the solenoid valve between the closed pipe 8 and the pressurized pipe 12 is opened again, and the solenoid valve between the pressurized pipe 12 and the water inlet 103 is closed. At this time, the closed pipe 8 will transport water into the hydraulic column 7, so that the piston rod in the hydraulic column 7 is extended and then pushes the two detection shells 6, so that the two detection shells 6 are close to each other and closed; When the two detection shells 6 are closed, the support frame 903 will first contact the surface of the steel pipe 11, and as the detection shell 6 moves, the support frame 903 will be pushed and contracted (the surface of the steel pipe 11 is against the support frame 903, and if the detection shell 6 is not closed and continues to move, the support frame 903 will contract into the adjustment port 901), until the two detection shells 6 fit together. At this time, the detection belts 906 on the support frames 903 can just wrap the steel pipe 11, and the detection belt 906 will adjust its length by itself under the action of the torsion spring in the winding wheel 908 during the movement of the support frame 903 (the limit groove 905 provided inside the support frame 903 can prevent the support frame 903 from squeezing the detection belt 906 when it contacts the steel pipe 11), and then the steel pipe 11 can be wrapped after the support frame 903 stops moving, and the angle sensor is turned on at this time (the angle sensor is in a closed state during the adjustment stage); When the two detection shells 6 are attached, the solenoid valve between the sealing tube 8 and the pressurizing tube 12 is closed, and the solenoid valve between the pressurizing tube 12 and the water inlet 103 is opened, and water is continuously injected into the sealing sleeve 104. At this time, since the sealing sleeve 104 is restricted and cannot expand, the water pressure in the sealing sleeve 104 will rise, thereby triggering the pressure relief tube 105 to allow water to enter the steel pipe 11. By controlling the water pressure in the steel pipe 11, the pressure bearing capacity of the steel pipe 11 can be detected; When the steel pipe 11 deforms under water pressure, the steel pipe 11 will expand. At this time, the expanded steel pipe 11 will push the detection belt 906, and then the detection belt 906 will pull the winding wheel 908 to rotate. When the winding wheel 908 rotates, the angle sensor will be triggered, so as to judge that the steel pipe 11 has started to deform at this time. By recording the water pressure at this time, the pressure resistance data of the steel pipe 11 can be obtained. By comprehensively wrapping the steel pipe 11 with a number of detection belts 906, the expansion deformation of any surface of the steel pipe 11 can be measured, thereby increasing the measurement accuracy; When the steel pipe 11 breaks due to pressure, water will flow out. The flowing water will connect several conductive wires 909 and the support frame 903, and then trigger the buzzer, so as to judge that the steel pipe 11 has a crack. By this method, the maximum bearing capacity of the steel pipe can be recorded. By this method, the breakage of the steel pipe 11 can be detected immediately, thereby increasing the detection accuracy.

[0033] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A pressure resistance detection device for seamless steel pipes, comprising a machine compartment (1), characterized in that, Inside the machine compartment (1), inspection shells (6) are symmetrically installed. Inside the inspection shells (6), several inspection components (9) for inspecting the steel pipe (11) are fixedly installed. The left end of the machine compartment (1) is fixedly connected to an equipment compartment (2). Inside the equipment compartment (2), a positioning motor (4) is fixedly connected in a ring. Positioning components (10) are installed on the output shaft of the positioning motor (4) and on the inner right side wall of the machine compartment (1). The right end of the machine compartment (1) is fixedly connected to a pressurizing compartment (3). Inside the pressurizing compartment (3), water is stored, and a water pump (5) is also fixedly connected inside. The output pipe of the water pump (5) is connected to the positioning component (10) through a pressurizing pipe (12).

2. The pressure resistance detection device for seamless steel pipes according to claim 1, wherein, The positioning component (10) includes a fixed cover (100). An contact plate (102) is fixedly connected to the outside of the fixed cover (100). The two fixed covers (100) are respectively fixedly connected to the side walls of the positioning motor (4) and the machine compartment (1).

3. The pressure resistance detection device for seamless steel pipes according to claim 2, wherein An water inlet (103) is opened at the upper end of the fixed cover (100), and the water inlet (103) is connected to the pressurizing pipe (12). Support columns (101) are installed on one side of the two fixed covers (100) close to each other. The steel pipe (11) is sleeved outside the two support columns (101). A sealing sleeve (104) is fixedly connected between the fixed cover (100) and the support column (101). Water is added into the water inlet (103) through the pressurizing pipe (12) to fill the sealing sleeve (104) with water, so that the sealing sleeve (104) expands to seal the inside of the steel pipe (11).

4. A pressure resistance detection device for seamless steel pipes according to claim 3, characterized in that, And in order to make the sealing sleeve (104) applicable to steel pipes (11) with different inner diameters, a pressure relief pipe (105) is fixedly connected inside the support column (101). A fixed sleeve (112) is slidably connected inside the pressure relief pipe (105). A pressure relief spring (110) is arranged between the fixed sleeve (112) and the pressure relief pipe (105). As the water pressure increases, the fixed sleeve (112) can push the pressure relief spring (110) to compress it, so that the pressure relief pipe (105) can inject water into the steel pipe (11).

5. The pressure resistance detection device for seamless steel pipes according to claim 1, characterized in that, The inspection component (9) includes several inspection frames (900). The several inspection frames (900) are respectively fixedly connected to the two inspection shells (6), and the several inspection frames (900) are evenly distributed in a circle inside the two inspection shells (6). Support frames (903) are symmetrically and slidably connected to the side walls of the inspection frames (900). An inspection belt (906) for inspecting the deformation of the steel pipe (11) is sleeved on the support frame (903).

6. The pressure resistance detection device for seamless steel pipes according to claim 5, characterized in that, A limiting groove (905) is opened inside the support frame (903). The inspection belt (906) is located inside the limiting groove (905). The limiting groove (905) can limit the inspection belt (906) to prevent the inspection belt (906) from derailing.

7. The pressure resistance detection device for seamless steel pipes according to claim 5, characterized in that, Inside the detection frame (900), there is also a fixedly connected equipment shell (907). Inside the equipment shell (907), there are symmetrically rotatably connected winding wheels (908). The winding wheels (908) are rotatably connected to the detection frame (900) through connecting plates. A torsion spring and an angle sensor are provided at the rotational connection of the winding wheels (908) and the connecting plates. Both ends of the detection belt (906) pass through the equipment shell (907) and are wound around the outside of the winding wheels (908).

8. The pressure resistance detection device for seamless steel pipes according to claim 7, wherein, Inside one of the winding wheels (908) in each detection frame (900), there are two fixedly connected metal conductive sheets (910). A power source (911) is installed inside the winding wheel (908) with the metal conductive sheets (910). The positive and negative poles of the power source (911) are respectively fixedly connected to the metal conductive sheets (910). A number of conductive wires (909) are evenly arranged inside the detection belt (906).

9. The pressure resistance detection device for seamless steel pipes according to claim 8, characterized in that, One end of each of the two ends of the conductive wire (909) is fixedly connected to one of the metal conductive sheets (910) inside the winding wheel (908), and the other end is fixedly connected to the outer wall of the other winding wheel (908). The support frames (903) on both sides of the detection frame (900) are respectively fixedly connected to the other metal conductive sheet (910) through connecting wires (912). Buzzers are fixedly connected inside both of the support frames (903), and the positive and negative poles of the buzzers are respectively connected to the connecting wires (912).

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