Special equipment pressure pipeline quality detection device

Abstract

The utility model discloses a special equipment pressure pipeline quality detection device, and belongs to the technical field of pipeline quality detection. Comprising a detection table; a quality detection assembly is mounted on the detection table; the quality detection assembly comprises two pipeline detection frames fixedly mounted on the top surface of the detection table, hydraulic fixing claws inserted into the pipeline detection frames, a hydraulic driving assembly connected with the hydraulic fixing claws, and two T-shaped pushing and pressing plates symmetrically arranged on the outer sides of the pipeline detection frames; the left-right rotating lead screw is installed between the two T-shaped pushing and pressing plates in a penetrating mode, and the power assembly is connected with one end of the left-right rotating lead screw through a transmission assembly. According to the quality detection device for the pressure pipeline of the special equipment, the two T-shaped pushing plates are driven by the motor to carry out extrusion test on the two ends of the test pipe, the hydraulic press is pushed to pressurize the hydraulic fixing claws, the hydraulic fixing claws are utilized to extrude multiple positions of the outer surface wall of the test pipe, and multi-surface simultaneous extrusion detection can be carried out on the test pipe.

Description

Technical Field

[0001] This utility model relates to a special equipment pressure pipeline quality inspection device, belonging to the field of pipeline quality inspection technology. Background Technology

[0002] The special equipment pressure pipeline quality inspection device is mainly used to conduct comprehensive quality inspections on pressure pipelines to ensure their safe and reliable operation. This device can detect and evaluate key parameters such as the material properties and structural integrity of pressure pipelines.

[0003] Existing technologies for quality inspection of pressure pipelines in special equipment typically suffer from the following problems: using a single motor makes it difficult to simultaneously compress multiple sides of the test pipeline; while using multiple motors allows for simultaneous multi-sided compression, this increases manufacturing costs and complexity, potentially leading to higher maintenance difficulties and costs, cumbersome inspection procedures, and low overall inspection efficiency. Therefore, to address these issues, there is an urgent need to design a quality inspection device for pressure pipelines in special equipment. Utility Model Content

[0004] To address the aforementioned issues, this invention proposes a special equipment pressure pipeline quality inspection device. It is simple to operate and can simultaneously perform multi-faceted extrusion testing on the test tube using only one motor, resulting in high testing efficiency.

[0005] This utility model discloses a special equipment pressure pipeline quality inspection device, which includes an inspection table; a quality inspection component is installed on the inspection table.

[0006] The quality inspection component includes two pipe inspection frames fixedly installed on the top surface of the inspection table, hydraulic fixing claws inserted inside the pipe inspection frames, a hydraulic drive component connected to the hydraulic fixing claws, two T-shaped push plates symmetrically arranged on the outside of the pipe inspection frames, left and right spiral screws installed through the two T-shaped push plates and rotatably connected to the T-shaped push plates, and a power component connected to one end of the left and right spiral screws through a transmission component;

[0007] The hydraulic drive assembly includes a hydraulic unit base fixed on the testing table, a hydraulic unit fixed on the hydraulic unit base, hydraulic push plates installed at both ends of the hydraulic unit, and a hydraulic pipe connected to the hydraulic unit; the end of the hydraulic pipe facing away from the hydraulic unit is connected to the hydraulic fixing claw.

[0008] The transmission assembly includes two symmetrically arranged first bevel gears and second bevel gears, and a crown gear that is raised and lowered above the first bevel gears and second bevel gears; the first bevel gears and second bevel gears are connected by the crown gear; a self-locking button assembly is installed on the top of the crown gear;

[0009] The power assembly includes a motor and a rotating shaft that is driven to the output shaft of the motor; the end of the rotating shaft opposite to the motor is connected to a second bevel gear.

[0010] Furthermore, the outer surface of the left and right spiral screw is integrally formed with two sets of external threads with opposite teeth, and the two sets of external threads are symmetrically arranged along the center of the left and right spiral screw.

[0011] Furthermore, one end of the left and right rotating lead screw passes through the T-shaped push plate and the hydraulic push plate in sequence, and is rotatably connected to the support limiting plate; the other end of the left and right rotating lead screw passes through the T-shaped push plate and the hydraulic push plate in sequence, and is connected to the first bevel gear.

[0012] As a preferred embodiment, an anti-tilt support rod is also installed between the two T-shaped push plates; the two ends of the anti-tilt support rod pass through the two T-shaped push plates respectively, and the ends of the anti-tilt support rod are fixedly connected to an anti-tilt support plate; the anti-tilt support plate is fixed to the top of the testing table.

[0013] Furthermore, the self-locking button assembly includes a button housing, a button shell slidably mounted on the top of the button housing, a spring baffle, an anti-misalignment block, and a slot plate integrally formed from bottom to top inside the button shell, a guide rod baffle obliquely mounted between the slot plate and the anti-misalignment block, an L-shaped guide rod movably disposed at the bottom of the guide rod baffle, a spring guide rod disposed below the spring baffle, and a spring sleeved on the outside of the spring guide rod; the upper end of the spring is connected to the spring baffle, and the lower end of the spring is connected to the spring guide rod; the lower end of the spring guide rod is fixedly connected to the gear shaft of the crown gear, and the crown gear and the gear shaft are rotatably connected; the upper end of the L-shaped guide rod is movably fitted with the guide rod baffle; the lower end of the L-shaped guide rod is fixed to the inner wall of the button housing.

[0014] Furthermore, the guide rod baffle has a slot reserved on the side near the anti-misalignment block for the passage of the L-shaped guide rod.

[0015] Furthermore, a protective shell is installed at the bottom of the self-locking button assembly, around the transmission assembly; a protective shell base is fixedly installed at the bottom of the protective shell; the protective shell base is fixed to the top of the testing table; the lower end of the button shell is inserted into the protective shell, and the button shell and the protective shell are fixedly connected.

[0016] As a preferred embodiment, the system further includes a crack detection assembly; the crack detection assembly includes a water tank installed between the motor and the protective housing, an inlet pipe connected to the water tank via a water valve, and a water injection connector connected to the water tank via a water injection pipe.

[0017] The water tank is fixedly installed on the testing table via a water tank base;

[0018] The water inlet pipe is connected to a water tank on the side away from the pumping tank; the water tank is placed under the testing table;

[0019] The water injection connector is fixedly installed on the inner side of the T-shaped push plate near the crack detection component.

[0020] The rotating shaft is installed through the water tank, and several fan blades are evenly fixed on the outer surface of the rotating shaft along its circumference; the rotating shaft is rotatably connected to the water tank.

[0021] As a preferred embodiment, a heat dissipation pipe is provided on the back of the motor; a heat conduction rod is installed on the back of the heat dissipation pipe; the lower end of the heat conduction rod passes through the testing table and extends into the water tank.

[0022] Furthermore, the heat dissipation pipe has a spiral structure, and its thickness is 0.2 cm and its diameter is 1 cm.

[0023] Compared with existing technologies, this utility model's special equipment pressure pipeline quality inspection device uses a motor to drive left and right rotating screws, causing two T-shaped pressure plates to move simultaneously in opposite directions. This allows the two T-shaped pressure plates to perform compression tests on both ends of the test tube. Simultaneously, it pushes a hydraulic actuator to pressurize the hydraulic fixing claws, causing them to move inward and simultaneously compress multiple points on the outer wall of the test tube. This achieves multi-faceted simultaneous compression testing of the test tube using a single motor. In addition, a crack detection component is included. Water is introduced into the test tube through a water injection pipe, allowing for observation of whether water seeps into the outer wall of the test tube, thus detecting cracks that are not visible to the naked eye. Water injection testing provides a more intuitive reflection of the crack condition of the test tube, making the inspection work more convenient. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model.

[0025] Figure 2 This is a schematic diagram of the quality inspection component structure of this utility model.

[0026] Figure 3 This is a schematic diagram of the transmission component structure of this utility model.

[0027] Figure 4 This is a schematic diagram of the internal structure of the self-locking button assembly of this utility model.

[0028] Figure 5 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model.

[0029] Figure 6 This is a schematic diagram of the crack detection component structure of Embodiment 2 of this utility model.

[0030] Figure 7This is a schematic diagram of the heat dissipation pipe and heat-conducting rod installation structure of Embodiment 3 of this utility model.

[0031] The components in the attached diagram are labeled as follows: 1. Motor; 2. Shaft; 3. Quality inspection assembly; 301. Crown gear; 302. First bevel gear; 303. Second bevel gear; 304. Left and right helical screws; 305. Hydraulic push plate; 306. Hydraulic unit; 307. Hydraulic pipe; 308. Hydraulic fixing claw; 309. Pipe inspection frame; 310. T-shaped push plate; 311. Anti-tilt support plate; 312. Hydraulic unit base; 313. Protective shell base; 314. Protective shell; 315. Support limit plate; 316. Anti-tilt support rod; 317. 4. Gear shaft; 5. Crack detection assembly; 6. Water valve; 7. Inlet pipe; 8. Water tank; 9. Fan blade; 100. Water injection pipe; 11. Water tank; 12. Water tank base; 13. Water injection connector; 14. Self-locking button assembly; 15. Button housing; 16. Button shell; 17. Card slot plate; 18. Guide rod baffle; 19. Anti-misalignment block; 100. L-shaped guide rod; 101. Spring baffle; 11. Spring; 12. Spring guide rod; 13. Detection table; 14. Test tube; 15. Heat conduction rod; 16. Heat dissipation pipe. Detailed Implementation

[0032] Example 1:

[0033] like Figures 1 to 4 The special equipment pressure pipeline quality inspection device shown includes an inspection table 6; a quality inspection component 3 is installed on the inspection table 6.

[0034] The quality inspection component 3 includes two pipe inspection frames 309 fixedly installed on the top surface of the inspection table 6, a hydraulic fixing claw 308 inserted inside the pipe inspection frame 309, a hydraulic drive component connected to the hydraulic fixing claw 308, two T-shaped push plates 310 symmetrically arranged on the outside of the pipe inspection frame 309, a left and right spiral screw 304 installed through the two T-shaped push plates 310 and rotatably connected to the T-shaped push plates 310, and a power component connected to one end of the left and right spiral screw 304 through a transmission component;

[0035] The hydraulic drive assembly includes a hydraulic unit base 312 fixed on the inspection table 6, a hydraulic unit 306 fixed on the hydraulic unit base 312, hydraulic push plates 305 installed at both ends of the hydraulic unit 306, and a hydraulic pipe 307 connected to the hydraulic unit 306; the end of the hydraulic pipe 307 facing away from the hydraulic unit 306 is connected to the hydraulic fixing claw 308; the hydraulic unit base 312 fixes the hydraulic unit 306 on the table surface of the inspection table, preventing the hydraulic unit 306 from moving when the hydraulic push plates 305 push the hydraulic unit 306, thus avoiding the hydraulic unit 306 being unable to pressurize the hydraulic fixing claw 308 due to movement of the hydraulic unit 306;

[0036] The transmission assembly includes two symmetrically arranged first bevel gears 302 and second bevel gears 303, and a crown gear 301 that is raised and lowered above the first bevel gears 302 and second bevel gears 303; the first bevel gears 302 and second bevel gears 303 are connected by the crown gear 301; a self-locking button assembly is installed on the top of the crown gear 301.

[0037] The power assembly includes a motor 1 and a rotating shaft 2 that is drivenly connected to the output shaft of the motor 1; the end of the rotating shaft 2 facing away from the motor 1 is connected to a second bevel gear 303.

[0038] The left and right helical lead screw 304 has two sets of opposite external threads integrally formed on its outer surface, and the two sets of external threads are symmetrically arranged along the center of the left and right helical lead screw. One end of the left and right helical lead screw 304 passes through the T-shaped push plate 310 and the hydraulic push plate 305 in sequence, and is rotatably connected to the support limiting plate 315; the other end of the left and right helical lead screw 304 passes through the T-shaped push plate 310 and the hydraulic push plate 305 in sequence, and is connected to the first bevel gear 302.

[0039] In use, motor 1 drives shaft 2 to rotate, which in turn drives second bevel gear 303 to rotate. Pressing the self-locking button assembly 5 causes crown gear 301 to descend, bringing it into contact with the rotating second bevel gear 303 and first bevel gear 302. The rotating second bevel gear 303 meshes with crown gear 301, causing crown gear 301 to rotate. The rotating crown gear 301 meshes with first bevel gear 302, causing left and right helical screws 304 to rotate. The rotating left and right helical screws 304 then move the two T-shaped push plates 310 to opposite sides. The test tube 7 is squeezed to test the pipe quality. At the same time, the rotating left and right screw 304 drives the two hydraulic push plates 305 to move to opposite sides, pushing the hydraulic device 306 to pressurize the hydraulic fixing claw 308 through the hydraulic pipe 307, causing the hydraulic fixing claw 308 to move inward and squeeze the outer wall of the test tube 7 to test the pipe quality. Pressing the self-locking button assembly 5 again causes the crown gear 301 to rise, causing the crown gear 301 to separate from the first bevel gear 302 and the second bevel gear 303, thereby stopping the left and right screw 304 from rotating.

[0040] An anti-tilt support rod 316 is also installed between the two T-shaped push plates 310; the two ends of the anti-tilt support rod 316 pass through the two T-shaped push plates 310 respectively, and an anti-tilt support plate 311 is fixedly connected to the end of the anti-tilt support rod 316; the anti-tilt support plate 311 is fixed to the top of the test table 6, and the movement direction of the T-shaped push plate 310 is limited by the anti-tilt support rod 316, so that the T-shaped push plate 310 will not tilt or deviate during the process of squeezing the test tube 7, thereby avoiding damage to the left and right screw 304 and failure of quality inspection caused by the deviation of the T-shaped push plate 310 during movement.

[0041] The self-locking button assembly 5 includes a button housing 501, a button shell 502 slidably mounted on the top of the button housing 501, a spring baffle 507, an anti-misalignment block 505, and a slot plate 503 integrally formed from bottom to top inside the button shell 502, a guide rod baffle 504 inclinedly mounted between the slot plate 503 and the anti-misalignment block 505, an L-shaped guide rod 506 movably disposed at the bottom of the guide rod baffle 504, a spring guide rod 509 disposed below the spring baffle 507, and a spring 500 sleeved on the outside of the spring guide rod 509. 8; The upper end of the spring 508 is connected to the spring baffle 507, and the lower end of the spring 508 is connected to the spring guide rod 509; The lower end of the spring guide rod 509 is fixedly connected to the gear shaft 317 of the crown gear 301, and the crown gear 301 and the gear shaft 317 are rotatably connected; The upper end of the L-shaped guide rod 506 is movably fitted with the guide rod baffle 504; The lower end of the L-shaped guide rod 506 is fixed to the inner wall of the button housing 501; The guide rod baffle 504 has a slot (not shown) reserved on the side near the anti-misalignment block 505 for the L-shaped guide rod 506 to pass through;

[0042] By pressing the button housing 502, the crown gear 301 connected to the spring guide rod 509 descends. During the pressing of the button housing 502, the L-shaped guide rod 506 is squeezed and moves along the bottom surface of the guide rod baffle 504. Since the lower end of the L-shaped guide rod 506 is fixedly connected to the button housing 501, the L-shaped guide rod 506 will generate a leftward rebound force when squeezed. The L-shaped guide rod 506 moves to the top of the slot plate 503 and rebounds into the groove at the top of the slot plate 503. The L-shaped guide rod 506 is stuck in the groove of the slot plate 503, which restricts the spring 508 from rebounding.

[0043] Pressing the button shell 502 again causes the L-shaped guide rod 506 to spring out of the groove to the left due to the rebound force. At this time, the spring 508 rebounds and resets without restriction. The spring 508 generates an upward force, which pushes the button shell 502 upward through the spring baffle 507 at the top of the spring 508. When the button shell 502 rises, it drives the crown gear 301 connected to the spring guide rod 509 to rise. During the rise of the button shell 502, the L-shaped guide rod 506 contacts and presses against the upper surface of the guide rod baffle 504, squeezing out the slot of the guide rod baffle 504 so that the L-shaped guide rod 506 can pass through and return to the starting position. During the pressing of the button shell 502, the anti-misalignment block 505 restricts the L-shaped guide rod 506 from shifting to the left, which serves to make the crown gear 301 move up and down.

[0044] At the bottom of the self-locking button assembly 5, a protective shell 314 is installed around the transmission assembly; a protective shell base 313 is fixedly installed at the bottom of the protective shell 314; the protective shell base 313 is fixed to the top of the testing table 6; the lower end of the button shell 501 is inserted into the protective shell 314, and the button shell 501 is fixedly connected to the protective shell 314; the protective shell 314 can prevent foreign objects from entering during the testing process and damaging the gears in the meshing transmission, and at the same time avoids injury to the staff due to accidental contact with the gears in the meshing transmission.

[0045] Example 2:

[0046] like Figure 5 and Figure 6 The special equipment pressure pipeline quality inspection device shown has a structure that is basically the same as that of Embodiment 1; it also includes a crack detection component 4; the crack detection component 4 includes a water tank 403 installed between the motor 6 and the protective shell 314, an inlet pipe 402 connected to the water tank 403 through a water valve 401, and a water injection connector 408 connected to the water tank 403 through a water injection pipe 405.

[0047] The water tank 403 is fixedly installed on the testing table 6 via the water tank base 407;

[0048] The water inlet pipe 402 is connected to a water tank 406 on the side away from the water tank 403; the water tank 406 is placed under the testing table 6; installing the water tank 406 under the testing table 6 can effectively utilize the spare space, making the overall layout more compact, saving more space for other items or activities, and improving the space utilization rate; and placing the water tank 406 under the testing table 6 can reduce the risk of accidental collision or falling.

[0049] The water injection connector 408 is fixedly installed on the inner side of the T-shaped push plate 310 near the crack detection component 4; the end of the water injection pipe 405 away from the water tank 403 passes through the T-shaped push plate 310 and is connected to the water injection connector 408; during the test, the water injection connector 408 extends into the test tube 7.

[0050] The rotating shaft 2 is installed through the water tank 403, and a number of fan blades 404 are evenly fixed on the outer surface of the rotating shaft 2 along its circumference; the rotating shaft 2 is rotatably connected to the water tank 403.

[0051] The motor 1 drives the rotating shaft 2 to rotate, which in turn drives the fan blades 404 on the outer wall to rotate. The rotation of the fan blades 404 creates a negative pressure inside the water tank 403. This water tank is similar to a vacuum water pump in the prior art, and its specific structure and working principle will not be described in detail here. When the water valve 401 is opened, water is drawn from the water tank 406 into the water tank 403 by the negative pressure suction. The water flows into the test tube 7 through the water injection pipe 405 and the water injection connector 408. In order to prevent water leakage at the connection between the test tube 7 and the water injection connector 408 during testing, a sealing ring can be set inside the T-shaped push plate 310, or a sealing ring can be set at the end of the test tube 7.

[0052] During testing, after the test tube 7 has undergone the compression test, water valve 401 is opened to inject water into the test tube 7. The test tube 7 is then observed for any leakage. Cracks that are not visible to the naked eye can be detected. By using water injection for testing, the crack condition of the test tube 7 can be more intuitively reflected, making the testing work more convenient.

[0053] Preferably, to achieve better detection results, an intelligent controller (such as a Siemens PLC control system) can be added for overall machine control, which can automatically open and close the motor and water valve through settings.

[0054] Example 3:

[0055] like Figure 7 The special equipment pressure pipeline quality inspection device shown has a structure basically the same as that in Embodiment 2; wherein, a heat dissipation pipe 9 is provided on the back of the motor 1; a heat conduction rod 8 is installed on the back of the heat dissipation pipe 9; the lower end of the heat conduction rod 8 passes through the inspection table 6 and extends into the water tank 406. The heat dissipation pipe 9 has a spiral structure, and the thickness of the heat dissipation pipe 9 is 0.2cm and the diameter is 1cm;

[0056] As the temperature of motor 1 rises during operation, its operational quality decreases, affecting its working efficiency. Prolonged high-temperature operation can lead to aging, oxidation, and even embrittlement of the motor's insulation material, reducing its insulation performance and increasing the risk of internal short circuits. The heat generated by motor 1 during operation is transferred to heat-conducting rod 8 via heat pipe 9. The heat-conducting rod 8, connected to water tank 406, can quickly conduct the heat from motor 1 to the interior of water tank 406, thereby achieving effective heat management. This design ensures that heat is transferred in a timely and efficient manner, preventing heat accumulation in local areas and improving the overall heat dissipation effect.

[0057] The spiral design of the heat pipe 9 increases the contact area between the heat pipe 9 and the motor 1, thereby increasing the heat dissipation area, improving heat dissipation efficiency, reducing heat dissipation blind spots, and making the heat more evenly distributed on the heat sink, thus improving the overall heat dissipation effect.

[0058] The working principle of this special equipment pressure pipeline quality inspection device is as follows:

[0059] During testing, motor 1 drives shaft 2 to rotate, which in turn drives second bevel gear 303 to rotate. Pressing the self-locking button assembly 5 causes crown gear 301 to descend, making contact between crown gear 301 and the rotating second bevel gear 303 and first bevel gear 302. The rotating second bevel gear 303 meshes with crown gear 301, causing crown gear 301 to rotate. The rotating crown gear 301 meshes with first bevel gear 302, causing left and right helical screw 304 to rotate. The rotating left and right helical screw 304 drives two T-shaped push plates 310 to move to opposite sides to squeeze test tube 7 and test the pipe quality. At the same time, the rotating left and right helical screw 304 drives two hydraulic push plates 305 to move to opposite sides, pushing hydraulic device 306 to pressurize hydraulic fixing claw 308 through hydraulic pipe 307, causing hydraulic fixing claw 308 to move inward and squeeze the outer wall of test tube 7 to test the pipe quality.

[0060] The process of pressing the self-locking button assembly 5 to lower the crown gear 301 is as follows: By pressing the button shell 502, the crown gear 301 connected to the spring guide rod 509 is lowered. During the pressing of the button shell 502, the L-shaped guide rod 506 is squeezed and moves along the bottom surface of the guide rod baffle 504. Since the L-shaped guide rod 506 is fixedly connected to the button shell 501, the L-shaped guide rod 506 will generate a leftward rebound force when squeezed. The L-shaped guide rod 506 moves to the top of the slot plate 503 and rebounds into the groove at the top of the slot plate 503. The L-shaped guide rod 506 is stuck in the groove to restrict the spring 508 from rebounding.

[0061] Pressing the self-locking button assembly 5 again raises the crown gear 301, and the left and right rotating screw 304 stops rotating. Specifically, pressing the button shell 502 again causes the L-shaped guide rod 506 to pop out of the groove to the left due to the rebound force. At this time, the spring 508 rebounds and resets without restriction. The rebound of the spring 508 generates an upward force, which pushes the button shell 502 upward through the spring baffle 507 at the top of the spring 508. When the button shell 502 rises, it drives the crown gear 301 connected to the spring guide rod 509 to rise. During the rise of the button shell 502, the L-shaped guide rod 506 contacts and squeezes the upper surface of the guide rod baffle 504, squeezing out a groove so that the L-shaped guide rod 506 can pass through. The L-shaped guide rod 506 returns to the starting position. During the pressing of the button shell 502, the anti-misalignment block 505 restricts the L-shaped guide rod 506 from shifting to the left, which serves the function of raising and lowering the crown gear 301.

[0062] The working process of the crack detection component 4 is as follows: The motor 1 drives the rotating shaft 2 to rotate, and the rotating shaft 2 drives the fan blade 404 on the outer wall to rotate. The rotating fan blade 404 discharges the air in the water tank 403, so that a negative pressure vacuum is formed in the water pipe. The water valve 401 is opened, and the suction force generated by the vacuum draws water from the water tank 406 into the water tank 403. The water flows into the test tube 7 through the water injection pipe 405. After the test tube 7 has undergone the compression test, the water valve 401 is opened to inject water into the test tube 7. The test tube 7 is then observed for any leakage, and cracks that cannot be detected by the naked eye are found.

[0063] The above embodiments are merely preferred embodiments of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included within the scope of the present utility model patent application.

Claims

1. A special equipment pressure pipeline quality inspection device, comprising an inspection table; characterized in that: The testing table is equipped with quality testing components; The quality inspection component includes two pipe inspection frames fixedly installed on the top surface of the inspection table, hydraulic fixing claws inserted inside the pipe inspection frames, a hydraulic drive component connected to the hydraulic fixing claws, two T-shaped push plates symmetrically arranged on the outside of the pipe inspection frames, left and right spiral screws installed through the two T-shaped push plates, and a power component connected to one end of the left and right spiral screws through a transmission component. The hydraulic drive assembly includes a hydraulic unit base fixed on the testing table, a hydraulic unit fixed on the hydraulic unit base, hydraulic push plates installed at both ends of the hydraulic unit, and a hydraulic pipe connected to the hydraulic unit; the end of the hydraulic pipe facing away from the hydraulic unit is connected to the hydraulic fixing claw. The transmission assembly includes two symmetrically arranged first bevel gears and second bevel gears, and a crown gear that is raised and lowered above the first bevel gears and second bevel gears; the first bevel gears and second bevel gears are connected by the crown gear; a self-locking button assembly is installed on the top of the crown gear; The power assembly includes a motor and a rotating shaft that is driven to the output shaft of the motor; the end of the rotating shaft opposite to the motor is connected to a second bevel gear.

2. The special equipment pressure piping quality detection device according to claim 1, characterized in that: The outer surface of the left and right spiral screws is integrally formed with two sets of external threads with opposite teeth, and the two sets of external threads are symmetrically arranged along the center of the left and right spiral screws.

3. The device for quality control of pressure pipes of special equipment according to claim 1 or 2, characterized in that: One end of the left and right spiral screw passes through the T-shaped push plate and the hydraulic push plate in sequence, and is rotatably connected to the support limit plate; the other end of the left and right spiral screw passes through the T-shaped push plate and the hydraulic push plate in sequence, and is connected to the first bevel gear.

4. The special equipment pressure piping quality detection device according to claim 1, characterized in that: An anti-tilt support rod is also installed between the two T-shaped push plates; the two ends of the anti-tilt support rod pass through the two T-shaped push plates respectively, and the ends of the anti-tilt support rod are fixedly connected to an anti-tilt support plate; the anti-tilt support plate is fixed to the top of the testing table.

5. The special equipment pressure pipeline quality inspection device according to claim 1, characterized in that: The self-locking button assembly includes a button housing, a button shell slidably mounted on the top of the button housing, a spring baffle, an anti-misalignment block, and a slot plate integrally formed inside the button shell from bottom to top, a guide rod baffle obliquely mounted between the slot plate and the anti-misalignment block, an L-shaped guide rod movably disposed at the bottom of the guide rod baffle, a spring guide rod disposed below the spring baffle, and a spring sleeved on the outside of the spring guide rod; the upper end of the spring is connected to the spring baffle, and the lower end of the spring is connected to the spring guide rod; the lower end of the spring guide rod is fixedly connected to the gear shaft of the crown gear; the upper end of the L-shaped guide rod is movably fitted with the guide rod baffle; and the lower end of the L-shaped guide rod is fixed to the inner wall of the button housing.

6. The special equipment pressure piping quality detection device according to claim 5, characterized in that: The guide rod baffle has a slot reserved on the side near the anti-misalignment block for the passage of the L-shaped guide rod.

7. The special equipment pressure piping quality detection device according to claim 1 or 5, characterized in that: A protective shell is installed at the bottom of the self-locking button assembly, around the transmission assembly; a protective shell base is fixedly installed at the bottom of the protective shell; and the protective shell base is fixed to the top of the testing table.

8. The special equipment pressure piping quality detection device according to claim 1, characterized in that: It also includes a crack detection assembly; the crack detection assembly includes a water tank installed between the motor and the protective shell, an inlet pipe connected to the water tank via a water valve, and a water injection connector connected to the water tank via a water injection pipe. The water tank is fixedly installed on the testing table via a water tank base; The water inlet pipe is connected to a water tank on the side away from the pumping tank; the water tank is placed under the testing table; The water injection connector is fixedly installed on the inner side of the T-shaped push plate near the crack detection component. The rotating shaft is installed through the water tank, and several fan blades are evenly fixed on the outer surface of the rotating shaft along its circumference; the rotating shaft is rotatably connected to the water tank.

9. The special equipment pressure piping quality detection device according to claim 1, characterized in that: A heat dissipation pipe is provided on the back of the motor; a heat conduction rod is installed on the back of the heat dissipation pipe; the lower end of the heat conduction rod passes through the testing table and extends into the water tank.

10. The special equipment pressure piping quality detection device according to claim 9, characterized in that: The heat dissipation pipe has a spiral structure, and its thickness is 0.2cm and its diameter is 1cm.

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