Pressure pipeline pressure detection device

Abstract

The invention relates to the technical field of pipeline pressure detection devices, in particular to a pressure pipeline pressure detection device which comprises a stabilizing frame, an isolation pipe is fixedly installed at the upper end of the inner side of the stabilizing frame, the output end of a hydraulic machine is fixedly connected with a liquid inlet pipe, the free end of the liquid inlet pipe is fixedly communicated with a propelling pipe, and a propelling recovery device is arranged in the propelling pipe. A gauge shell is fixedly installed at the right end of the stabilizing frame, a pressure display device is arranged in the gauge shell, when extrusion force is stopped, the pointer can stay at the current position, the current pressure borne by the pressure pipe can be conveniently recorded, meanwhile, the pressure pipe reversely pushes the push plate and the driven rod to move under the action of elastic force after deformation, and the pressure display device can display the pressure. At the moment, the pointer slowly recovers to the initial state, if the pointer completely returns to zero, it is indicated that the current pressure pipe can rapidly recover under the transient overpressure or stress condition, and if the pointer cannot completely return to zero, it is indicated that the current pressure pipe has certain defects.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline pressure detection devices, and in particular to a pressure pipeline pressure detection device. Background Art

[0002] In modern industrial production, pressure pipelines are widely used in the fields of petroleum, chemical industry, electricity, natural gas transportation, etc. These pipelines usually carry high-pressure fluids. During operation, stress fluctuations will occur due to changes in internal pressure, affecting the safety and stability of the pipelines. Therefore, real-time monitoring of the pressure conditions of the pipelines can detect abnormal situations in time and prevent pipeline ruptures or leakage accidents, which is the key to ensuring the safe operation of the system.

[0003] After searching, it was found that the prior art publication number is CN 113125080 A, which discloses a pressure pipeline detection device, including a support frame, etc.; the clamping and sealing mechanism and the gas pressurizing mechanism are two symmetrical left and right, wherein the support frame includes a first base plate, a second base plate and a first bracket, one side of the first base plate is fixedly connected to one end of the first bracket, and one side of the second base plate is fixedly connected to the other end of the first bracket, the detection mechanism is arranged below the first bracket, the clamping and sealing mechanism is arranged on the upper part of the detection mechanism, and the gas pressurizing mechanism is arranged inside the clamping and sealing mechanism. This scheme quickly clamps and seals the round tube and injects high-pressure gas to detect whether the round tube is qualified and accurately locate the damaged position.

[0004] Therefore, based on the above search and in combination with the existing technology, in the existing technology, when inspecting the pressure pipe, in order to determine whether the current pressure pipe is qualified, it is necessary to perform an extrusion test on the outer surface to determine whether the current pipeline has material defects, poor welding, uneven inner wall and other problems. Simply injecting high-pressure gas cannot solve the problem of whether the current pipeline can be used in long-term high-pressure use. In particular, the pressure pipe will experience frequent pressure changes in actual use, and fatigue is easy to occur after long-term use. Therefore, the practicality of this solution is not strong. For this reason, we propose a pressure pipeline pressure detection device. Summary of the invention

[0005] The object of the present invention is to provide a pressure pipe pressure detection device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pressure pipeline pressure detection device, including a stabilizing frame, an isolation tube is fixedly installed on the inner upper end of the stabilizing frame, a pressure tube to be detected is arranged on the outer surface of the isolation tube, a plurality of support rods for lifting the pressure tube are rotatably installed on the outer surface of the isolation tube, and the support rods are arranged in a ring shape, a propulsion tube is fixedly installed on the right end of the stabilizing frame, a passive rod is slidably installed on the inner end of the propulsion tube, a push plate for squeezing the pressure tube is fixedly installed on the end of the passive rod away from the propulsion tube, a hydraulic press is arranged on the right side of the stabilizing frame, a liquid inlet pipe is fixedly connected to the output end of the hydraulic press, and the free end of the liquid inlet pipe is fixedly connected to the propulsion pipe, a propulsion recovery device for squeezing the pressure tube is arranged inside the propulsion tube, a watch case is fixedly installed on the right end of the stabilizing frame, and a pressure display device capable of displaying the current pressure state of the pressure tube is arranged inside the watch case.

[0007] As a further solution of the present invention, the propulsion recovery device includes a movable rod, which is slidably installed inside the propulsion tube, and the propulsion tube is fixedly connected to the passive rod. An active cavity is provided on the left side inside the propulsion tube, and the passive rod is located in the active cavity. A strip opening is provided on the outer surface of the movable rod, and a piston is fixedly installed on the outer surface of the passive rod, and the piston is located in the active cavity in the propulsion tube. A blocking ring is fixedly installed on the inner end of the propulsion tube, and the blocking ring is located in the active cavity.

[0008] As a further solution of the present invention, a plurality of locking balls are provided inside the passive rod, and the locking balls are arranged in a ring shape. The locking balls and the passive rod are connected by a bent rod, and the bent rod is rotatably connected to the passive rod. A plurality of ball holes are provided on the outer surface of the passive rod, and the ball holes correspond to the locking balls, so that the locking balls can be accurately engaged in the ball holes and are not easy to fall off.

[0009] As a further solution of the present invention, a plurality of circular holes are provided on the outer surface of the blocking ring, and the circular holes correspond to the locking ball, a conical block is slidably installed on the inner end of the passive rod, a return pipe is fixedly connected to the outer surface of the propulsion tube, and the return pipe corresponds to the blocking ring, a plurality of circular holes are provided on the outer surface of the blocking ring, and the circular holes correspond to the locking ball, a conical block is slidably installed on the inner end of the passive rod, a return pipe is fixedly connected to the outer surface of the propulsion tube, and the return pipe corresponds to the blocking ring, and a movable cover is slidably installed on the inner end of the return pipe.

[0010] As a further solution of the present invention, the pressure display device includes a center rod, which is rotatably mounted on the inner end of the watch case, and a dial is fixedly mounted on the inner end of the watch case. An indicator needle is rotatably mounted on the left end of the dial, and the indicator needle is fixedly connected to the center rod. A retaining ring is fixedly mounted on the right end of the dial, and the retaining ring is sleeved on the outer surface of the center rod.

[0011] As a further solution of the present invention, a passive gear is rotatably mounted on the front end of the retaining ring, the passive gear is sleeved on the outer surface of the center rod, and the center rod and the retaining ring are connected by a reset spring.

[0012] As a further solution of the present invention, a Bourdon tube is fixedly installed on the inner end of the case, a detection tube is fixedly connected to the upper end of the propulsion tube, the free end of the detection tube is fixedly connected to the Bourdon tube, and an arc-shaped rack is rotatably installed on the front end of the dial, which can drive the passive gear to rotate when rotating.

[0013] As a further solution of the present invention, the arc-shaped rack is meshed with the passive gear, an extension rod is fixedly installed on the bottom end of the arc-shaped rack, and a transfer rod is rotatably installed on one end of the Bourdon tube close to the passive gear, and the transfer rod is rotatably connected to the extension rod at one end away from the Bourdon tube.

[0014] As a further solution of the present invention, a contact ball is slidably installed on the inner end of the passive gear, an arc groove is provided on the outer surface of the center rod, the contact ball slides in the arc groove, a through hole is provided on the outer surface of the watch case, and a force ring is fixedly installed on the outer surface of the center rod.

[0015] As a further solution of the present invention, a tilting rod is rotatably mounted on the right end of the movable cover, and a damping ring is fixedly mounted on the upper end of the tilting rod; a tilting rod is rotatably mounted on the right end of the movable cover, and a damping ring is fixedly mounted on the upper end of the tilting rod;

[0016] A spray plug is slidably mounted on the right end of the movable cover, and the spray plug corresponds to the bottom end of the tilting rod. A connecting rod is rotatably mounted on the inner end of the watch case, and an abutment column is fixedly mounted on the inner end of the connecting rod, and the abutment column corresponds to the spray plug.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. When the present invention is used, when the extrusion force is stopped, the indicator needle can stay at the current position, which is convenient for recording the pressure currently borne by the pressure tube. At the same time, after the pressure tube is deformed, it pushes the push plate and the passive rod in the opposite direction under the action of elastic force. At this time, the indicator needle slowly returns to the initial state. If it returns to zero completely, it means that the current pressure tube can recover quickly under short-term overpressure or force. If the indicator needle cannot return to zero completely, it means that the current pressure tube has certain defects.

[0019] 2. When the present invention is used, by performing an extrusion test on the pressure pipe, it is effectively evaluated whether the material of the pressure pipe has sufficient pressure resistance and toughness to ensure that it can withstand the expected external force and internal pressure in the working environment. In this way, the reliability and durability of the pipeline under long-term pressure fluctuation conditions are evaluated, which helps to prevent fatigue rupture caused by frequent fluctuations. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a pressure pipeline pressure detection device;

[0021] Figure 2 It is a schematic diagram of the structure inside the isolation tube;

[0022] Figure 3 This is a structural diagram of the propulsion pipe;

[0023] Figure 4 It is a schematic diagram of the structure inside the propulsion tube;

[0024] Figure 5 It is a schematic diagram of the structure inside the passive rod and the active rod;

[0025] Figure 6 This is a schematic diagram of the disassembled structure of the watch case;

[0026] Figure 7 This is a schematic diagram of the structure on the back of the dial;

[0027] Figure 8 It is a structural schematic diagram of the indicator needle and the clamp ring;

[0028] Fig. 9 It is a schematic diagram of the structure inside the case;

[0029] Fig.10 It is a schematic diagram of the positional relationship between the return pipe and the stress ring;

[0030] Fig.11 It is a schematic diagram of the structure inside the movable cover.

[0031] In the figure: 1. Stabilizing frame; 2. Turntable; 3. Case; 4. Liquid inlet pipe; 5. Propelling pipe; 6. Hydraulic press; 7. Force plate; 11. Reflux pipe; 12. Detection pipe; 13. Pick;

[0032] 101, screw rod; 102, sleeve; 103, support rod; 104, traction rope; 105, isolation tube;

[0033] 201, push plate; 202, strip mouth; 203, movable rod; 204, blocking ring; 205, passive rod; 206, piston; 207, passive spring; 208, locking ball; 209, tapered block;

[0034] 301, dial; 302, indicator needle; 303, snap ring; 304, center rod; 305, transfer rod; 306, extension rod; 307, passive gear; 308, Bourdon tube; 309, return spring; 310, arc groove; 311, abutment ball; 312, arc rack;

[0035] 401, abutment ring; 402, connecting rod; 403, force ring; 404, extrusion spring; 405, damping ring; 406, tilting rod; 407, locking rod; 408, movable cover; 409, spray plug. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Example 1: Please refer to Figures 1-2 A pressure pipeline pressure detection device includes a stabilizing frame 1, an isolation tube 105 is fixedly installed on the inner upper end of the stabilizing frame 1, a pressure tube to be detected is arranged on the outer surface of the isolation tube 105, a plurality of support rods 103 for lifting the pressure tube are rotatably installed on the outer surface of the isolation tube 105, and the support rods 103 are arranged in a ring shape. Specifically, a screw 101 is rotatably installed on the inner end of the isolation tube 105, and a sleeve 102 is threadedly sleeved on the outer surface of the screw 101. A rectangular groove is opened at the inner end of the isolation tube 105, and a rectangular block is fixedly installed on the outer surface of the sleeve 102. The rectangular block slides in the rectangular groove, thereby preventing the sleeve 102 from rotating. A traction rope 104 is fixedly installed on the upper end of the support rod 103, and the outer surface of the isolation tube 105 is fixedly installed. A hole is provided, and the free end of the traction rope 104 is fixedly connected to the sleeve 102 after passing through the hole. A turntable 2 is rotatably installed on the upper end of the stabilizing frame 1 for the convenience of the operator to grasp, and the bottom end of the turntable 2 is fixedly connected to the screw 101, and the screw 101 is driven to rotate by the turntable 2. When the sleeve 102 moves upward or downward, the support rod 103 is pulled to rotate by the traction rope 104, and multiple support rods 103 gather and open with each other, so as to realize the support of pressure pipes of different diameters. More specifically, pulleys are rotatably installed in the holes on the outer surface of the isolation tube 105, and the outer surface of the traction rope 104 contacts the outer surface of the pulley, so as to prevent the traction rope 104 from rubbing against the isolation tube 105 when being pulled, resulting in a reduction in the service life of the traction rope 104;

[0038] See also Figure 1 , 3, 4, 5, the right end of the stabilizing frame 1 is fixedly installed with a propulsion tube 5, the inner end of the propulsion tube 5 is slidably installed with a passive rod 205, the end of the passive rod 205 away from the propulsion tube 5 is fixedly installed with a push plate 201 for squeezing the pressure tube, the left end of the stabilizing frame 1 is fixedly installed with a force plate 7, the outer surface of the force plate 7 is in contact with the outer surface of the pressure tube, and the right side of the stabilizing frame 1 is provided with a hydraulic press 6, the hydraulic press 6 is an existing mature technology, and no further description is made here, the output end of the hydraulic press 6 is fixedly connected with a liquid inlet pipe 4, and the free end of the liquid inlet pipe 4 is fixedly connected with the propulsion tube 5 The thrust tube 5 is connected to the pressure tube, and a thrust recovery device for squeezing the pressure tube is arranged inside the thrust tube 5. Specifically, the thrust recovery device can drive the push plate 201 through the liquid pressure and squeeze the outer surface of the pressure tube, and then observe the deformation of the pressure tube to judge the maximum pressure value currently borne by the pressure tube. The force plate 7 can support the other end of the pressure tube to prevent the pressure tube from being damaged due to lack of support when being stressed. The right end of the stabilizing frame 1 is fixedly mounted with a watch case 3, and the inside of the watch case 3 is provided with a pressure display device capable of displaying the current pressure state borne by the pressure tube;

[0039] See also Figure 3 , 4 5. The propulsion recovery device includes a movable rod 203, which is slidably mounted inside the propulsion tube 5. The propulsion tube 5 is fixedly connected to a passive rod 205. An active cavity is provided on the left side inside the propulsion tube 5. The passive rod 205 is located in the active cavity. A strip opening 202 is provided on the outer surface of the movable rod 203. A certain gap is provided between the strip opening 202 and the inner wall of the propulsion tube 5. A piston 206 is fixedly mounted on the outer surface of the passive rod 205. The piston 206 is located in the active cavity in the propulsion tube 5. The outer surface of the piston 206 is tightly fitted with the inner wall of the active cavity. A blocking ring 204 is fixedly mounted on the inner end of the propulsion tube 5. The blocking ring 204 is located in the active cavity. The blocking ring 204 prevents the piston 206 from moving excessively to the right, thereby achieving a limiting effect.

[0040] like Figure 5As shown, the passive rod 205 is provided with a plurality of locking balls 208 inside, and the locking balls 208 are arranged in a ring shape. The locking balls 208 and the passive rod 205 are connected by a bent rod, and the bent rod is rotatably connected to the passive rod 205. The passive rod 205 is provided with a passive spring 207 inside, and the passive spring 207 is sleeved on the outer surface of the curved pipe. Under the elastic force of the passive spring 207, the curved pipe is squeezed so that the curved pipes are brought closer to each other. The outer surface of the passive rod 205 is provided with a plurality of ball holes, and the ball holes correspond to the locking balls 208. The outer surface of the blocking ring 204 is provided with a plurality of circular holes, and the circular holes correspond to the locking balls 208. The inner end of the passive rod 205 is slidably mounted with a conical block 209. After the conical block 209 moves to the left, the locking balls 208 are squeezed away from each other by the inclined part of the outer surface, and then they are stuck in the circular hole on the outer surface of the blocking ring 204. The right end of the conical block 209 extends into the movable rod 203. The interior of the propulsion tube 5 is filled with hydraulic oil, and the hydraulic oil has lubricity, thereby ensuring that the locking ball 208 and the movable rod 203 slide more smoothly in the propulsion tube 5. When the conical block 209 is forced to move toward the left, the locking ball 208 has not reached the blocking ring 204 at this time, so the locking ball 208 cannot be squeezed out by the conical block 209. The outer surface of the propulsion tube 5 is fixedly connected with a return pipe 11, and the return pipe 11 corresponds to the blocking ring 204.

[0041] Example 2: Please refer to Figure 6 , 7 , a pressure pipe pressure detection device, based on the embodiment 1, the pressure display device includes a center rod 304, the center rod 304 is rotatably mounted on the inner end of the case 3, the inner end of the case 3 is fixedly mounted with a dial 301, the left end of the dial 301 is rotatably mounted with an indicator needle 302, the indicator needle 302 is fixedly connected to the center rod 304, the left end of the case 3 is fixedly mounted with a glass cover, and the chamber between the glass cover and the dial 301 is filled with glycerin, so that the indicator needle 302 is submerged in the glycerin, thereby preventing the indicator needle 302 from vibrating, and the right end of the dial 301 is fixedly mounted with a snap ring 303, and the snap ring 303 is sleeved on the outer surface of the center rod 304;

[0042] like Figure 3 , 7 8. A passive gear 307 is rotatably mounted at the front end of the snap ring 303. The passive gear 307 is sleeved on the outer surface of the center rod 304. The center rod 304 and the snap ring 303 are connected by a return spring 309. The return spring 309 is sleeved on the outer surface of the center rod 304 in an arc shape, so that after the center rod 304 rotates to any angle, the center rod 304 can be pushed to the initial state under the elastic force of the return spring 309;

[0043] The inner end of the watch case 3 is fixedly installed with a Bourdon tube 308. The Bourdon tube 308 is a "C"-shaped hollow tube made of metal. It is an existing mature technology and will not be described in detail here. When the high-pressure liquid is filled inside, the Bourdon tube 308 begins to expand. The upper end of the propulsion tube 5 is fixedly connected with a detection tube 12, which is connected to the liquid inlet tube 4. The free end of the detection tube 12 is fixedly connected to the Bourdon tube 308. The front end of the dial 301 is rotatably installed with an arc rack 312, and the arc rack 312 is connected to the passive gear 3 07 meshing, an extension rod 306 is fixedly installed at the bottom end of the arc-shaped rack 312, and a transfer rod 305 is rotatably installed at one end of the Bourdon tube 308 close to the passive gear 307, and the transfer rod 305 is rotatably connected to the extension rod 306 at one end away from the Bourdon tube 308. When the Bourdon tube 308 begins to expand under high pressure, the extension rod 306 is pulled by the transfer rod 305, and finally the arc-shaped rack 312 is driven to rotate, and the passive gear 307 that follows it also starts to rotate under the action of meshing with the arc-shaped rack 312;

[0044] like Figure 8 As shown, an abutment ball 311 is slidably mounted on the inner end of the passive gear 307, and the abutment ball 311 is connected to the passive gear 307 via a spring sheet. An arc groove 310 is provided on the outer surface of the center rod 304, and the abutment ball 311 slides in the arc groove 310. Specifically, the depth of the depression at one end of the arc groove 310 is equal to the radius of the abutment ball 311, and then gradually decreases, and finally connects with the outer surface of the center rod 304, thereby realizing the positive rotation of the passive gear 307, and driving the center rod 304 to rotate through the engagement of the abutment ball 311 and the arc groove 310. At the same time, when the center rod 304 stops rotating, the passive gear 307 is not affected by the center rod 304 and returns to the initial state.

[0045] See also Fig. 9 , 10, 11, the outer surface of the watch case 3 is provided with a perforation, and the free end of the return pipe 11 passes through the perforation and corresponds to the center rod 304, the inner end of the return pipe 11 is slidably mounted with a movable cover 408, the right end of the movable cover 408 is rotatably mounted with a tilting rod 406, the upper end of the tilting rod 406 is fixedly mounted with a damping ring 405, the damping ring 405 and the tilting rod 406 are connected by an extrusion spring 404, the outer surface of the center rod 304 is fixedly mounted with a force ring 403, and the damping ring 405 is opposite to the force ring 403 In order to prevent the lubricity of the hydraulic oil from causing friction failure between the damping ring 405 and the force ring 403, diamond-shaped anti-skid grooves are provided on the outer surfaces of the damping ring 405 and the force ring 403. A spray plug 409 is slidably installed at the right end of the movable cover 408. A plurality of holes are provided on the outer surface of the spray plug 409. The holes are located in the movable cover 408. The spray plug 409 corresponds to the bottom end of the tilting rod 406. A connecting rod 402 is rotatably installed at the inner end of the watch case 3. An abutment column is fixedly installed at the inner end of the connecting rod 402. The abutment column corresponds to the spray plug 409.

[0046] like Fig.10 , 11 Specifically, an abutment ring 401 is rotatably mounted on the outer surface of the center rod 304, and a paddle 13 is fixedly mounted on the outer surface of the abutment ring 401. One end of the paddle 13 away from the abutment ring 401 extends to the outside of the watch case 3, and a locking rod 407 is penetrated at the upper end of the return pipe 11, and the locking rod 407 is rotatably connected with the connecting rod 402. A hole is provided on the outer surface of the movable cover 408. When the movable cover 408 moves to the right until the hole corresponds to the locking rod 407, the locking rod 407 is then inserted into the hole to restrict the movable cover 408 from moving. An arc-shaped notch is provided on the outer surface of the abutment ring 401, and the connecting rod 402 corresponds to the abutment ring 401. When the abutment ring 401 rotates, the arc-shaped notch squeezes the right end of the connecting rod 402 so that the locking rod 407 is tilted, and the movable cover 408 is squeezed into the return pipe 11;

[0047] More specifically, a recovery pipe (not shown in the figure) is fixedly connected to the outer surface of the case 3 , and a free end of the recovery pipe is fixedly connected to the recovery bin of the hydraulic press 6 .

[0048] The working principle of the present invention is:

[0049] When in use, the pressure tube is sleeved outside the isolation tube 105, and the turntable 2 is rotated according to the diameter of the pressure tube so that the support rod 103 is opened to a suitable angle, thereby supporting the pressure tube. Then, the hydraulic press 6 is started, and the hydraulic oil enters the propulsion tube 5 from the liquid inlet pipe 4. The hydraulic oil pushes the movable rod 203 to move toward the hydraulic tube, and by pushing the passive rod 205 and the push plate 201 to move, pressure is applied to the outer surface of the pressure tube. At this time, the pressure is transmitted to the Bourdon tube 308 through the detection tube 12. At this time, the pressure inside the Bourdon tube 308 increases, and the Bourdon tube 308 begins to be stretched under force.

[0050] During the deformation of the Bourdon tube 308, the transfer rod 305 is pulled, and the transfer rod 305 moves by pulling the extension rod 306. At this time, the arc rack 312 starts to rotate, and the rotation of the arc rack 312 drives the passive gear 307 to rotate. Under the action of the abutment ball 311 and the arc groove 310 on the outer surface of the center rod 304, the center rod 304 starts to rotate, and the indicator needle 302 also starts to rotate. The value on the dial 301 pointed by the indicator needle 302 is the currently displayed value;

[0051] The pressure tube does not move at all under the squeeze, and the pressure value reaches the expected value, which means that the current pressure tube meets the standard. If the pressure tube is deformed under the squeeze at this time, the movable rod 203 and the passive rod 205 begin to move to the left until the lock ball 208 reaches the blocking ring 204, and then the conical block 209 is also affected by the pressure, so the lock ball 208 is squeezed to spread in all directions and finally snaps into the circular hole on the outer surface of the blocking ring 204. At this time, the passive rod 205 and the movable rod 203 stop moving, and the strip 202 comes to the movable cavity in the propulsion tube 5. At this time, the hydraulic oil quickly flows along the return pipe 11 to the movable cover 408, and the hydraulic press 6 stops after the protection mechanism is triggered due to the instantaneous reduction in output pressure. Due to the increase in force at the moment of pressure release, the movable cover 408 is pushed to the right, but stops moving under the action of the lock rod 407;

[0052] At this time, the damping ring 405 is tightly fitted with the force ring 403 under the movement of the movable cover 408. As the pressure decreases, the Bourdon tube 308 gradually returns to its original state. At this time, due to the special shape of the arc groove 310 on the outer surface of the center rod 304, the passive gear 307 rotates and does not drive the center rod 304 to rotate. The center rod 304 is not affected by the elastic force of the reset spring 309 due to the fit between the damping ring 405 and the force ring 403. If the groove on the outer surface of the pressure tube can rebound, it will push the push plate 201 and the passive rod 205 to move in the opposite direction. At this time, the piston 206 moves to the right, squeezing the remaining liquid in the movable chamber. Hydraulic oil, the locking ball 208 is retracted into the passive rod 205 under the elastic force of the passive spring 207, and the squeezed hydraulic oil pushes the spray plug 409 to move to the right, and then the hydraulic oil flows out and begins to squeeze the bottom end of the tilting rod 406, so that the upper end of the tilting rod 406 begins to move away from the force ring 403. At this time, the friction between the force ring 403 and the damping ring 405 is reduced, and then the center rod 304 gradually resumes rotation to the initial state under the elastic force of the reset spring 309, and the indicator needle 302 also gradually returns to zero, indicating that the current pressure pipe means that the pipeline can recover quickly under short-term overpressure or stress conditions, and is not prone to permanent deformation, which helps to cope with pressure fluctuations and sudden stress conditions;

[0053] If the depression of the pressure tube no longer rebounds, the indicator needle 302 will not return to zero, which means that the current pressure tube is permanently deformed, so that the current position is subjected to concentrated pressure during use, thereby causing rupture.

[0054] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed in the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pressure pipe pressure detection device, comprising a stabilizing frame (1), characterized in that: An isolation tube (105) is fixedly mounted on the inner upper end of the stabilizing frame (1), a pressure tube to be detected is arranged on the outer surface of the isolation tube (105), a plurality of support rods (103) for supporting the pressure tube are rotatably mounted on the outer surface of the isolation tube (105), and the support rods (103) are arranged in a ring shape. A propulsion tube (5) is fixedly mounted on the right end of the stabilizing frame (1), a passive rod (205) is slidably mounted on the inner end of the propulsion tube (5), and a passive rod (205) is fixedly mounted on the end of the passive rod (205) away from the propulsion tube (5). A push plate (201) for squeezing the pressure tube, a hydraulic press (6) is arranged on the right side of the stabilizing frame (1), the output end of the hydraulic press (6) is fixedly connected to a liquid inlet pipe (4), and the free end of the liquid inlet pipe (4) is fixedly connected to a propulsion pipe (5), and a propulsion recovery device for squeezing the pressure tube is arranged inside the propulsion pipe (5), and a watch case (3) is fixedly installed on the right end of the stabilizing frame (1), and a pressure display device capable of displaying the current pressure state of the pressure tube is arranged inside the watch case (3).

2. A pressure pipe pressure detection device according to claim 1, characterized in that: The propulsion recovery device comprises a movable rod (203), wherein the movable rod (203) is slidably mounted inside a propulsion tube (5), wherein the propulsion tube (5) is fixedly connected to a passive rod (205), wherein an active cavity is arranged on the left side inside the propulsion tube (5), wherein the passive rod (205) is located in the active cavity, wherein a strip opening (202) is provided on the outer surface of the movable rod (203), wherein a piston (206) is fixedly mounted on the outer surface of the passive rod (205), wherein the piston (206) is located in the active cavity in the propulsion tube (5), and wherein a blocking ring (204) is fixedly mounted on the inner end of the propulsion tube (5), wherein the blocking ring (204) is located in the active cavity.

3. A pressure pipe pressure detection device according to claim 2, characterized in that: A plurality of locking balls (208) are arranged inside the passive rod (205), and the locking balls (208) are arranged in a ring shape. The locking balls (208) and the passive rod (205) are connected via a bent rod, and the bent rod is rotatably connected to the passive rod (205). A plurality of ball holes are opened on the outer surface of the passive rod (205), and the ball holes correspond to the locking balls (208).

4. A pressure pipe pressure detection device according to claim 3, characterized in that: The outer surface of the blocking ring (204) is provided with a plurality of circular holes, and the circular holes correspond to the locking ball (208); the inner end of the passive rod (205) is slidably mounted with a conical block (209); the outer surface of the propulsion tube (5) is fixedly connected with a return pipe (11); the return pipe (11) corresponds to the blocking ring (204); the outer surface of the blocking ring (204) is provided with a plurality of circular holes, and the circular holes correspond to the locking ball (208); the inner end of the passive rod (205) is slidably mounted with a conical block (209); the outer surface of the propulsion tube (5) is fixedly connected with a return pipe (11); the return pipe (11) corresponds to the blocking ring (204); the inner end of the return pipe (11) is slidably mounted with a movable cover (408).

5. A pressure pipe pressure detection device according to claim 1, characterized in that: The pressure display device comprises a center rod (304), wherein the center rod (304) is rotatably mounted on the inner end of a watch case (3), a dial (301) is fixedly mounted on the inner end of the watch case (3), an indicator needle (302) is rotatably mounted on the left end of the dial (301), the indicator needle (302) is fixedly connected to the center rod (304), and a retaining ring (303) is fixedly mounted on the right end of the dial (301), and the retaining ring (303) is sleeved on the outer surface of the center rod (304).

6. A pressure pipe pressure detection device according to claim 5, characterized in that: A passive gear (307) is rotatably mounted on the front end of the snap ring (303), and the passive gear (307) is sleeved on the outer surface of the center rod (304). The center rod (304) and the snap ring (303) are connected via a return spring (309).

7. A pressure pipe pressure detection device according to claim 6, characterized in that: A Bourdon tube (308) is fixedly mounted on the inner end of the watch case (3), a detection tube (12) is fixedly connected to the upper end of the propulsion tube (5), a free end of the detection tube (12) is fixedly connected to the Bourdon tube (308), and an arc-shaped rack (312) is rotatably mounted on the front end of the dial (301).

8. A pressure pipe pressure detection device according to claim 7, characterized in that: The arc-shaped rack (312) is meshed with the passive gear (307), an extension rod (306) is fixedly installed at the bottom end of the arc-shaped rack (312), and a transfer rod (305) is rotatably installed at one end of the Bourdon tube (308) close to the passive gear (307), and one end of the transfer rod (305) away from the Bourdon tube (308) is rotatably connected to the extension rod (306).

9. A pressure pipe pressure detection device according to claim 8, characterized in that: An abutment ball (311) is slidably mounted on the inner end of the passive gear (307), an arc groove (310) is provided on the outer surface of the center rod (304), and the abutment ball (311) slides in the arc groove (310), a through hole is provided on the outer surface of the watch case (3), and a force ring (403) is fixedly mounted on the outer surface of the center rod (304).

10. A pressure pipe pressure detection device according to claim 4, characterized in that: The right end of the movable cover (408) is rotatably mounted with a tilting rod (406), and the upper end of the tilting rod (406) is fixedly mounted with a damping ring (405); the right end of the movable cover (408) is rotatably mounted with a tilting rod (406), and the upper end of the tilting rod (406) is fixedly mounted with a damping ring (405); A spray plug (409) is slidably mounted on the right end of the movable cover (408), and the spray plug (409) corresponds to the bottom end of the tilting rod (406). A connecting rod (402) is rotatably mounted on the inner end of the watch case (3), and an abutment column is fixedly mounted on the inner end of the connecting rod (402), and the abutment column corresponds to the spray plug (409).

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