Discharge valve for pipeline detector

Abstract

The invention discloses a discharge valve for a pipeline detector, and relates to the technical field of valve bodies. The butterfly valve comprises a butterfly plate, the inner side face of the butterfly plate is fixedly connected with a valve rod, the two ends of the valve rod sequentially penetrate through an outer cylinder and an inner cylinder, the surface of the valve rod is rotationally connected with the inner side face of the outer cylinder and the inner side face of the inner cylinder, and the inner side face of each annular plate is rotationally connected with the surface of the valve rod; the number of the opened annular plates is adjusted, so that the cross section of fluid circulation is changed, the flow of the fluid is adjusted, the reasonable fluid passes through the bypass hole, washes away impurities attached in front of the lens, maintains a clear visual field and maintains the detection sensitivity of the detector, and the annular plates and the butterfly plate rotate by 90 degrees to be opened, so that inclined extrusion of the fluid is avoided, and the detection sensitivity is improved. And the butterfly plate and the annular plate are prevented from shaking due to fluid extrusion, so that the pipeline detector is prevented from vibrating, and the detection effect of the pipeline detector on the pipeline is prevented from being influenced.

Description

Technical Field

[0001] The invention relates to the technical field of valve bodies, and in particular to a flow relief valve for a pipeline detector. Background Art

[0002] Pipeline detectors are professional equipment used to detect the internal conditions of pipelines. They can accurately detect problems such as pipe wall corrosion, cracks, deformation and blockage. Pipeline detectors are usually equipped with bypass holes. Some detectors use ultrasonic detection technology. The bypass holes can adjust the flow characteristics of the fluid around the detector, fine-tune the flow rate and direction, and optimize the effect of ultrasonic signal transmission and reception, so that the collected pipe wall defect data is more accurate. When using an optical camera to view the situation inside the pipe, there are impurities such as dirt, rust, and sand in the pipe. Reasonable fluid flows through the bypass hole to wash away the impurities attached to the front of the lens, maintain a clear field of view, and maintain the detection sensitivity of the detector; In order to better control the flow state of the medium around itself and assist in detection, it is necessary to equip the bypass hole with an extremely small discharge valve to accurately control the flow rate and direction of the fluid around the detector and optimize the signal feedback of ultrasonic detection. When the fluid passes through, it will inevitably cause the pipeline detector to vibrate, affecting the detection effect of the detector inside the pipeline detector. Therefore, we proposed a discharge valve for pipeline detectors. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a drain valve for a pipeline detector, comprising: An outer cylinder, the inner side of which is fixedly connected to an inner cylinder, and both the outer cylinder and the inner cylinder are part of the framework of the pipeline detector, and the space enclosed by the inner cylinder is a bypass hole of the pipeline detector; A valve body mechanism, the valve body mechanism is fixedly connected to the surface of the outer cylinder and is used for adjusting the flow of the bypass hole; Wherein, the valve body mechanism comprises: A butterfly plate, the butterfly plate is arranged inside the inner cylinder, the inner side surface of the butterfly plate is fixedly connected with a valve stem, both ends of the valve stem pass through the outer cylinder and the inner cylinder in sequence, and the surface of the valve stem is rotatably connected with the inner side surfaces of the outer cylinder and the inner cylinder; A ring plate, the inner side of which is rotatably connected to the surface of the valve stem, a plurality of the ring plates are provided, and the plurality of the ring plates and the butterfly plate together form a circular plate shape; A driving assembly, wherein the driving assembly has a buffer structure for controlling the rotation of the valve stem, and the driving assembly is fixedly connected to the outer side surface of the outer cylinder; The butterfly plate is driven to rotate, which drives the valve stem to rotate, thereby driving the ring plate to rotate, and the butterfly plate opens, thereby opening the bypass hole to allow the fluid to pass through. Several ring plates are set, and the number of opened ring plates is adjusted to change the cross-section of the fluid flow, so as to adjust the flow rate of the fluid, so that a reasonable amount of fluid passes through the bypass hole, washes away the impurities attached to the front of the lens, maintains a clear field of view, maintains the detection sensitivity of the detector, and several ring plates and butterfly plates are rotated 90 degrees to open, so as to avoid tilting and squeezing of the fluid, and avoid shaking of the butterfly plate and the ring plate due to squeezing of the fluid, thereby avoiding vibration of the pipeline detector and affecting the detection effect of the pipeline detector on the pipeline.

[0004] Furthermore, a first rotating seat is fixedly connected to the surface of the butterfly plate, and a side of the first rotating seat away from the butterfly plate is rotatably connected to an active telescopic rod through a rotating rod, and the first rotating seat is fixedly connected to an output end of the active telescopic rod, and an end of the active telescopic rod away from the first rotating seat is rotatably connected to a second rotating seat through a rotating rod, and the active telescopic rod is tilted inside the inner cylinder, and an end of the second rotating seat away from the active telescopic rod is fixedly connected to an inner side surface of the inner cylinder, and the active telescopic rod is started, and the output end of the active telescopic rod drives the butterfly plate to rotate, drives the valve stem to rotate, and drives the ring plate to rotate.

[0005] Furthermore, first telescopic rods are symmetrically arranged on both sides of the valve stem, the first telescopic rods are arranged inside the ring plate close to the inner cylinder, the first telescopic rod passes through a plurality of ring plates on the side away from the inner cylinder, second telescopic rods are symmetrically arranged at the interval between the two first telescopic rods, the second telescopic rods are arranged inside the butterfly plate, and the surface of the second telescopic rod is fixedly connected to the inner side surface of the butterfly plate, the second telescopic rod passes through the butterfly plate through one end of the valve stem, the first telescopic rod and the second telescopic rod are started, the second telescopic rod penetrates into a ring plate, the first telescopic rod retracts out of the ring plate, the butterfly plate rotates, driving the second telescopic rod to rotate, driving the ring plate to rotate, thereby completing the opening of the ring plate.

[0006] Furthermore, a shock-absorbing sleeve is provided at the interval between the outer cylinder and the inner cylinder, and the shock-absorbing sleeve is made of rubber material. The inner side surface of the shock-absorbing sleeve is fixedly connected to the outer side surface of the inner cylinder, and the outer side surface of the shock-absorbing sleeve is fixedly connected to the inner side surface of the outer cylinder. A hexagonal column is also provided at the interval between the outer cylinder and the inner cylinder, and a plurality of hexagonal columns are evenly distributed at the interval between the outer cylinder and the inner cylinder, and the two ends of the hexagonal columns are respectively fixedly connected to the sides of the outer cylinder and the inner cylinder that are close to each other. A plurality of hexagonal columns are evenly distributed to form a honeycomb structure, thereby enhancing the connection strength between the inner cylinder and the outer cylinder, maintaining the shape of the inner cylinder, ensuring that the bypass hole will not be deformed, and ensuring that the butterfly plate and the ring plate will not be stuck inside the inner cylinder. The shock-absorbing sleeve made of rubber material generates vibration when the fluid passes through the inner cylinder. The shock-absorbing sleeve made of rubber material can consume the energy generated by the vibration and prevent the vibration generated when the fluid passes through the bypass hole from being transmitted to the pipeline detector as a whole, thereby improving the detection accuracy of the pipeline detector.

[0007] Furthermore, the drive assembly includes a sleeve, which is symmetrically arranged with the valve stem as the center, the sides of the two sleeves close to each other are fixedly connected to the outer side surface of the outer cylinder, and the surface of the valve stem is rotatably connected to the inner side surface of the sleeve, the outer side surface of the sleeve is provided with a slide groove, and the inner side surface of the slide groove is slidably connected with a slide plate, and one end of the slide plate located inside the slide groove is fixedly connected to the surface of the valve stem, and the valve stem rotates to drive the slide plate to rotate, and the slide plate slides inside the slide groove, thereby limiting the rotation of the valve stem and preventing the valve stem from vibrating when the fluid passes through the bypass hole.

[0008] Furthermore, a sliding rod is provided inside the slide groove, both ends of the sliding rod are fixedly connected to the inner side surface of the slide groove, and the sliding rod passes through the skateboard, and the inner side surface of the skateboard is slidably connected to the surface of the sliding rod, and a first spring is sleeved on the outside of the sliding rod, an end of the first spring is fixedly connected to the inner side surface of the slide groove, and the other end of the first spring is fixedly connected to the surface of the skateboard, and the skateboard slides outside the sliding rod to limit the rotation of the skateboard, and at the same time drives the first spring to deform to buffer the rotation of the skateboard.

[0009] Furthermore, a winding drum is provided on the outer side of the sleeve, the inner side surface of the winding drum is rotatably connected to the outer side surface of the sleeve, the inner side surface of the winding drum is fixedly connected to the side of the slide plate away from the valve stem, the outer side surface of the winding drum is fixedly connected to a steel wire, and the two ends of the steel wire are respectively wound around the outside of the winding drum, and a rope body assembly is provided at the interval between the two winding drums. The rotation of the slide plate drives the winding drum to rotate, thereby retracting and releasing the steel wire. The setting of the steel wire can stabilize the rotation of the winding drum, and then stabilize the rotation of the valve stem, and finally stabilize the butterfly plate and the ring plate, so as to avoid swinging of the butterfly plate and the ring plate when the fluid moves, avoid affecting the flow angle and speed of the fluid, and avoid affecting the detection effect of the pipeline detector.

[0010] Furthermore, rope rails are provided on both sides of the rope body assembly, the rope rails are fixedly connected to the outer side surface of the outer cylinder, and the inner side surface of the rope rails is slidably connected to the surface of the steel wire. The rope rails are provided to limit the movement of the steel wire, avoid entanglement caused by the release of the steel wire, and avoid the steel wire from swinging randomly in the skeleton of the pipeline detector, thereby avoiding affecting the operation of the pipeline detector driving structure.

[0011] Furthermore, the rope body assembly includes a box body, and a third telescopic rod is fixedly connected to the inner side surface of the box body, and one end of the third telescopic rod away from the box body is fixedly connected to the surface of the steel wire, and the output end of the third telescopic rod is fixedly connected to the steel wire. The third telescopic rod contracts to drive the steel wire to move, thereby tightening the released steel wire, and thus the steel wire is received in the box body in a V-shape, thereby avoiding mutual entanglement of the steel wires and ensuring the stability of the steel wire buoyancy winding drum. After the first rotating seat, the active telescopic rod, and the second rotating seat are damaged and the driving effect is lost, the third telescopic rod tightens the steel wire, and the steel wire drives the winding drum to rotate, driving the slide plate to rotate, driving the valve stem to rotate, and finally driving the butterfly plate to rotate, completing the opening of the butterfly plate and the ring plate.

[0012] Furthermore, the surface of the box body is symmetrically provided with limiting grooves, the interiors of the two limiting grooves are slidably connected with rope loops, and the inner side surfaces of the rope loops are slidably connected to the surface of the steel wire, the outer side surfaces of the rope loops are fixedly connected with a groove plate, the groove plate is arranged inside the limiting groove, the inner side surface of the groove plate is slidably connected to the surface of the box body, the inner side surface of the groove plate is fixedly connected with a second spring, the end of the second spring is fixedly connected to the groove plate, and the other end of the second spring is fixedly connected to the inner side surface of the limiting groove, the third telescopic rod pulls the steel wire, and the steel wire slides inside the rope loop, and when the steel wire is just pulled, the rope loop is driven to slide in the limiting groove, and then the groove plate is driven to move, and the second spring is driven to deform, thereby playing a buffering role, and the steel wire slides in the rope loop to complete the tightening of the steel wire, and the rope loop moves when the steel wire is just pulled, reducing the pressure of the steel wire squeezing the rope loop, thereby reducing static friction, reducing wear of the steel wire, and increasing the life of the steel wire.

[0013] The present invention has the beneficial effects: The present invention arranges ring plates and adjusts the number of opened ring plates, thereby changing the cross-section of fluid circulation, thereby adjusting the flow rate of the fluid, allowing a reasonable amount of fluid to pass through the bypass hole, flushing away impurities attached to the front of the lens, maintaining a clear field of view, and maintaining the detection sensitivity of the detector. In addition, a plurality of ring plates and butterfly plates are rotated 90 degrees to open, thereby avoiding tilting and squeezing of the fluid, avoiding shaking of the butterfly plate and the ring plate due to squeezing of the fluid, thereby avoiding vibration of the pipeline detector, and avoiding affecting the detection effect of the pipeline detector on the pipeline.

[0014] The present invention arranges hexagonal columns, and several hexagonal columns are evenly distributed to form a honeycomb structure, thereby enhancing the connection strength between the inner cylinder and the outer cylinder, maintaining the shape of the inner cylinder, ensuring that the bypass hole will not be deformed, ensuring that the butterfly plate and the ring plate will not be stuck inside the inner cylinder, and the rubber shock-absorbing sleeve generates vibration when the fluid passes through the inner cylinder. The rubber shock-absorbing sleeve can consume the energy generated by the vibration and prevent the vibration generated when the fluid passes through the bypass hole from being transmitted to the pipeline detector as a whole, thereby improving the detection accuracy of the pipeline detector.

[0015] The present invention sets a driving component, and the slide plate slides inside the slide groove, which has a limiting effect on the rotation of the valve stem, thereby preventing the valve stem from vibrating when the fluid passes through the bypass hole. The slide plate slides outside the slide rod, limits the rotation of the slide plate, and simultaneously drives the first spring to deform, thereby buffering the rotation of the slide plate. The setting of the steel wire can stabilize the rotation of the cylinder, thereby stabilizing the rotation of the valve stem, and finally stabilizing the butterfly plate and the ring plate, thereby preventing the butterfly plate and the ring plate from swinging when the fluid moves, avoiding affecting the flow angle and speed of the fluid, and avoiding affecting the detection effect of the pipeline detector.

[0016] The present invention limits the movement of the steel wire by arranging the rope rail, avoids the steel wire from being entangled due to being released, and avoids the steel wire from swinging randomly in the framework of the pipeline detector, thereby avoiding affecting the operation of the pipeline detector driving structure.

[0017] The present invention arranges a rope body assembly to receive the steel wire in a V-shape in a box body, thereby preventing the steel wires from being entangled with each other and ensuring the stabilizing effect of the steel wire buoyancy winding drum. After the first rotating seat, the active telescopic rod and the second rotating seat are damaged and the driving effect is lost, the third telescopic rod tightens the steel wire, and the steel wire drives the winding drum to rotate, drives the slide plate to rotate, drives the valve stem to rotate, and finally drives the butterfly plate to rotate, completing the opening of the butterfly plate and the ring plate, and the rope loop moves when the steel wire is just pulled, reducing the pressure of the steel wire squeezing the rope loop, thereby reducing the static friction, reducing the wear of the steel wire, and increasing the life of the steel wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of a drain valve for a pipeline detector according to the present invention; Figure 2 This is a schematic diagram of the valve body structure of the present invention; Figure 3 This is a schematic diagram of the butterfly plate structure of the present invention; Figure 4 Schematic diagram of the cross-sectional structure of the butterfly plate of the present invention; Figure 5 This is a schematic diagram of the structure of the shock absorbing sleeve of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the winding drum of the present invention; Figure 7 This is a schematic diagram of the cross-sectional structure of the shaft sleeve of the present invention; Figure 8 This is a schematic diagram of the rope track structure of the present invention; Fig. 9 This is a schematic diagram of the structure of the rope assembly of the present invention; Fig.10 It is a schematic diagram of the groove plate structure of the present invention.

[0019] In the figure: 1. outer cylinder; 2. inner cylinder; 3. valve body mechanism; 31. butterfly plate; 32. ring plate; 33. valve stem; 34. drive assembly; 341. shaft sleeve; 342. slide groove; 343. slide plate; 344. winding cylinder; 345. steel wire; 346. slide rod; 347. first spring; 348. rope track; 349. rope body assembly; 3491. box body; 3492. third telescopic rod; 3493. limit groove; 3494. rope loop; 3495. groove plate; 3496. second spring; 35. first rotating seat; 36. active telescopic rod; 37. second rotating seat; 38. first telescopic rod; 39. second telescopic rod; 310. shock-absorbing sleeve; 311. hexagonal column. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0021] Example 1, please refer to Figure 1-Figure 7 The present invention is a flow relief valve for a pipeline detector, comprising: An outer cylinder 1, the inner side of which is fixedly connected to an inner cylinder 2, and both the outer cylinder 1 and the inner cylinder 2 are part of the pipeline detector skeleton, and the space surrounded by the inner cylinder 2 is a bypass hole of the pipeline detector; The valve body mechanism 3 is fixedly connected to the surface of the outer tube 1 and is used for regulating the flow of the bypass hole; Wherein, the valve body mechanism 3 comprises: The butterfly plate 31 is arranged inside the inner tube 2, and the inner side surface of the butterfly plate 31 is fixedly connected with the valve stem 33. Both ends of the valve stem 33 pass through the outer tube 1 and the inner tube 2 in sequence, and the surface of the valve stem 33 is rotatably connected with the inner side surfaces of the outer tube 1 and the inner tube 2; The ring plate 32, the inner side of the ring plate 32 is rotatably connected to the surface of the valve stem 33, a plurality of ring plates 32 are provided, and the plurality of ring plates 32 and the butterfly plate 31 together form a circular plate shape; A driving assembly 34, the driving assembly 34 has a buffer structure and is used to control the rotation of the valve stem 33. The driving assembly 34 is fixedly connected to the outer side surface of the outer tube 1; The butterfly plate 31 is driven to rotate, which drives the valve stem 33 to rotate, thereby driving the ring plate 32 to rotate, and the butterfly plate 31 is opened, thereby opening the bypass hole to allow the fluid to pass through. A plurality of ring plates 32 are provided, and the number of opened ring plates 32 is adjusted to change the cross-section of the fluid flow, so as to adjust the flow rate of the fluid, so that a reasonable amount of fluid passes through the bypass hole, and impurities attached to the front of the lens are washed away, a clear field of view is maintained, and the detection sensitivity of the detector is maintained. In addition, a plurality of ring plates 32 and the butterfly plate 31 are rotated ninety degrees to open, so as to avoid tilting and squeezing of the fluid, and avoid shaking of the butterfly plate 31 and the ring plate 32 due to squeezing of the fluid, thereby avoiding vibration of the pipeline detector and affecting the detection effect of the pipeline detector on the pipeline.

[0022] A first rotating seat 35 is fixedly connected to the surface of the butterfly plate 31, and an active telescopic rod 36 is rotatably connected to the first rotating seat 35 on a side away from the butterfly plate 31 through a rotating rod, and the first rotating seat 35 is fixedly connected to an output end of the active telescopic rod 36, and an end of the active telescopic rod 36 away from the first rotating seat 35 is rotatably connected to a second rotating seat 37 through a rotating rod, and the active telescopic rod 36 is tiltedly arranged inside the inner tube 2, and an end of the second rotating seat 37 away from the active telescopic rod 36 is fixedly connected to the inner side surface of the inner tube 2, and the active telescopic rod 36 is started, and the output end of the active telescopic rod 36 drives the butterfly plate 31 to rotate, drives the valve stem 33 to rotate, and drives the ring plate 32 to rotate.

[0023] First telescopic rods 38 are symmetrically arranged on both sides of the valve stem 33. The first telescopic rods 38 are arranged inside the ring plate 32 close to the inner tube 2. The first telescopic rod 38 penetrates several ring plates 32 on the side away from the inner tube 2. Second telescopic rods 39 are symmetrically arranged at the interval between the two first telescopic rods 38. The second telescopic rod 39 is arranged inside the butterfly plate 31, and the surface of the second telescopic rod 39 is fixedly connected to the inner side surface of the butterfly plate 31. The second telescopic rod 39 penetrates the butterfly plate 31 through one end of the valve stem 33. The first telescopic rod 38 and the second telescopic rod 39 are started, and the second telescopic rod 39 penetrates into a ring plate 32, and the first telescopic rod 38 retracts from the outside of the ring plate 32. The butterfly plate 31 rotates, driving the second telescopic rod 39 to rotate, driving the ring plate 32 to rotate, thereby completing the opening of the ring plate 32.

[0024] A shock absorbing sleeve 310 is arranged at the interval between the outer cylinder 1 and the inner cylinder 2. The shock absorbing sleeve 310 is made of rubber material. The inner side of the shock absorbing sleeve 310 is fixedly connected to the outer side of the inner cylinder 2. The outer side of the shock absorbing sleeve 310 is fixedly connected to the inner side of the outer cylinder 1. A hexagonal column 311 is also arranged at the interval between the outer cylinder 1 and the inner cylinder 2. A plurality of hexagonal columns 311 are evenly distributed at the interval between the outer cylinder 1 and the inner cylinder 2. The two ends of the hexagonal columns 311 are respectively fixedly connected to the sides of the outer cylinder 1 and the inner cylinder 2 that are close to each other. 311 are evenly distributed to form a honeycomb structure, thereby enhancing the connection strength between the inner tube 2 and the outer tube 1, maintaining the shape of the inner tube 2, ensuring that the bypass hole will not be deformed, and ensuring that the butterfly plate 31 and the ring plate 32 will not be stuck inside the inner tube 2. The rubber cushioning sleeve 310 generates vibration when the fluid passes through the inner tube 2. The rubber cushioning sleeve 310 can consume the energy generated by the vibration and prevent the vibration generated when the fluid passes through the bypass hole from being transmitted to the entire pipeline detector, thereby improving the detection accuracy of the pipeline detector.

[0025] Example 2, please refer to Figure 1-Figure 10 The drive assembly 34 includes a sleeve 341, which is symmetrically arranged with the valve stem 33 as the center. The sides of the two sleeves 341 that are close to each other are fixedly connected to the outer side of the outer tube 1, and the surface of the valve stem 33 is rotatably connected to the inner side of the sleeve 341. A slide groove 342 is provided on the outer side of the sleeve 341, and a slide plate 343 is slidably connected to the inner side of the slide groove 342. One end of the slide plate 343 located inside the slide groove 342 is fixedly connected to the surface of the valve stem 33. The rotation of the valve stem 33 drives the slide plate 343 to rotate, and the slide plate 343 slides inside the slide groove 342, thereby limiting the rotation of the valve stem 33 and preventing the valve stem 33 from vibrating when the fluid passes through the bypass hole.

[0026] A slide bar 346 is provided inside the slide groove 342, and both ends of the slide bar 346 are fixedly connected to the inner side surface of the slide groove 342, and the slide bar 346 passes through the slide plate 343, and the inner side surface of the slide plate 343 is slidably connected to the surface of the slide bar 346, and a first spring 347 is sleeved on the outside of the slide bar 346, and the end of the first spring 347 is fixedly connected to the inner side surface of the slide groove 342, and the other end of the first spring 347 is fixedly connected to the surface of the slide plate 343. The slide plate 343 slides outside the slide bar 346 to limit the rotation of the slide plate 343, and at the same time drives the first spring 347 to deform to buffer the rotation of the slide plate 343.

[0027] The outer sleeve 341 is provided with a winding cylinder 344, the inner side surface of the winding cylinder 344 is rotatably connected to the outer side surface of the shaft sleeve 341, the inner side surface of the winding cylinder 344 is fixedly connected to the side of the slide plate 343 away from the valve stem 33, the outer side surface of the winding cylinder 344 is fixedly connected to the steel wire 345, and the two ends of the steel wire 345 are respectively wound around the outside of the winding cylinder 344, and a rope body assembly 349 is arranged at the interval between the two winding cylinders 344. The slide plate 343 rotates to drive the winding cylinder 344 to rotate, thereby retracting and releasing the steel wire 345. The setting of the steel wire 345 can stabilize the rotation of the winding cylinder 344, and then stabilize the rotation of the valve stem 33, and finally stabilize the butterfly plate 31 and the ring plate 32, so as to avoid swinging the butterfly plate 31 and the ring plate 32 when the fluid moves, avoid affecting the flow angle and speed of the fluid, and avoid affecting the detection effect of the pipeline detector.

[0028] Rope rails 348 are provided on both sides of the rope body assembly 349. The rope rails 348 are fixedly connected to the outer side surface of the outer cylinder 1, and the inner side surface of the rope rails 348 is slidably connected to the surface of the steel wire 345. The rope rails 348 are provided to limit the movement of the steel wire 345, to prevent the steel wire 345 from being released and entangled, and to prevent the steel wire 345 from swinging freely in the frame of the pipeline detector, thereby avoiding affecting the operation of the pipeline detector driving structure.

[0029] The rope body assembly 349 includes a box body 3491, and a third telescopic rod 3492 is fixedly connected to the inner side surface of the box body 3491. The end of the third telescopic rod 3492 away from the box body 3491 is fixedly connected to the surface of the steel wire 345, and the output end of the third telescopic rod 3492 is fixedly connected to the steel wire 345. The third telescopic rod 3492 contracts to drive the steel wire 345 to move, thereby tightening the released steel wire 345, so that the steel wire 345 is V-shaped and collected into the box body 3491, so as to avoid the steel wires 345 from being entangled with each other, ensuring the stabilization effect of the buoyancy of the steel wire 345 around the cylinder 344. After the first rotating seat 35, the active telescopic rod 36, and the second rotating seat 37 are damaged and lose the driving effect, the third telescopic rod 3492 tightens the steel wire 345, and the steel wire 345 drives the cylinder 344 to rotate, drives the slide plate 343 to rotate, drives the valve stem 33 to rotate, and finally drives the butterfly plate 31 to rotate, completing the opening of the butterfly plate 31 and the ring plate 32.

[0030] The surface of the box body 3491 is symmetrically provided with limiting grooves 3493, the interiors of the two limiting grooves 3493 are slidably connected with rope loops 3494, and the inner side surfaces of the rope loops 3494 are slidably connected with the surface of the steel wire 345, and the outer side surfaces of the rope loops 3494 are fixedly connected with groove plates 3495, which are arranged inside the limiting grooves 3493, and the inner side surfaces of the groove plates 3495 are slidably connected with the surface of the box body 3491, and the inner side surfaces of the groove plates 3495 are fixedly connected with second springs 3496, and the ends of the second springs 3496 are fixedly connected with the groove plates 3495, and the other ends of the second springs 3496 are fixedly connected with the limiting grooves 34 93 is fixedly connected, the third telescopic rod 3492 pulls the steel wire 345, and the steel wire 345 slides inside the rope loop 3494. When the steel wire 345 is just pulled, the rope loop 3494 is driven to slide in the limiting groove 3493, and then the groove plate 3495 is driven to move, and the second spring 3496 is driven to deform, thereby playing a buffering role. The steel wire 345 slides in the rope loop 3494 to complete the tightening of the steel wire 345, and the rope loop 3494 moves when the steel wire 345 is just pulled, reducing the pressure of the steel wire 345 squeezing the rope loop 3494, thereby reducing the static friction, reducing the wear of the steel wire 345, and increasing the life of the steel wire 345.

[0031] When in use, the active telescopic rod 36 is started, and the output end of the active telescopic rod 36 drives the butterfly plate 31 to rotate, and the first telescopic rod 38 and the second telescopic rod 39 are started. The second telescopic rod 39 penetrates into a ring plate 32, and the first telescopic rod 38 retracts from the outside of the ring plate 32. The butterfly plate 31 rotates, driving the second telescopic rod 39 to rotate, driving the ring plate 32 to rotate, thereby completing the opening of the ring plate 32, driving the valve stem 33 to rotate, the valve stem 33 rotates, driving the slide plate 343 to rotate, the slide plate 343 slides inside the slide groove 342, the slide plate 343 rotates, driving the winding tube 344 to rotate, thereby retracting and releasing the steel wire 345. The setting of the steel wire 345 can stabilize the rotation of the winding tube 344, and then stabilize the rotation of the valve stem 33, and finally stabilize the butterfly plate 31 and the ring plate 32. The third telescopic rod 3492 contracts, driving the steel wire 345 to move, thereby tightening the released steel wire 345. After the first rotating seat 35, the active telescopic rod 36, and the second rotating seat 37 are damaged and lose the driving effect, the third telescopic rod 3492 tightens the steel wire 345, and the steel wire 345 drives the winding tube 344 to rotate, drives the slide plate 343 to rotate, drives the valve stem 33 to rotate, and finally drives the butterfly plate 31 to rotate, completing the opening of the butterfly plate 31 and the ring plate 32.

[0032] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A flow relief valve for a pipeline detector, characterized in that: include: An outer cylinder (1), the inner side surface of the outer cylinder (1) being fixedly connected to the inner cylinder (2), and the outer cylinder (1) and the inner cylinder (2) are both part of a pipeline detector skeleton, and the space enclosed by the inner cylinder (2) is a bypass hole of the pipeline detector; A valve body mechanism (3), the valve body mechanism (3) being fixedly connected to the surface of the outer cylinder (1) and used for regulating the flow rate of the bypass hole; Wherein, the valve body mechanism (3) comprises: a butterfly plate (31), the butterfly plate (31) being arranged inside the inner cylinder (2), the inner side surface of the butterfly plate (31) being fixedly connected to a valve stem (33), both ends of the valve stem (33) passing through the outer cylinder (1) and the inner cylinder (2) in sequence, and the surface of the valve stem (33) being rotatably connected to the inner side surfaces of the outer cylinder (1) and the inner cylinder (2); a ring plate (32), wherein the inner side surface of the ring plate (32) is rotatably connected to the surface of the valve stem (33), a plurality of the ring plates (32) are provided, and the plurality of the ring plates (32) and the butterfly plate (31) together form a circular plate shape; A drive assembly (34), the drive assembly (34) having a buffer structure, used to control the rotation of the valve stem (33), the drive assembly (34) being fixedly connected to the outer side surface of the outer cylinder (1).

2. The drain valve for pipeline detector according to claim 1, characterized in that: A first rotating seat (35) is fixedly connected to the surface of the butterfly plate (31); a side of the first rotating seat (35) away from the butterfly plate (31) is rotatably connected to an active telescopic rod (36) via a rotating rod; the first rotating seat (35) is fixedly connected to an output end of the active telescopic rod (36); an end of the active telescopic rod (36) away from the first rotating seat (35) is rotatably connected to a second rotating seat (37) via a rotating rod; the active telescopic rod (36) is tiltedly arranged inside the inner cylinder (2); and an end of the second rotating seat (37) away from the active telescopic rod (36) is fixedly connected to an inner side surface of the inner cylinder (2).

3. The drain valve for pipeline detector according to claim 2, characterized in that: First telescopic rods (38) are symmetrically arranged on both sides of the valve stem (33), the first telescopic rod (38) is arranged inside the ring plate (32) close to the inner tube (2), and the side of the first telescopic rod (38) away from the inner tube (2) passes through a plurality of ring plates (32), and second telescopic rods (39) are symmetrically arranged at the interval between the two first telescopic rods (38), the second telescopic rod (39) is arranged inside the butterfly plate (31), and the surface of the second telescopic rod (39) is fixedly connected to the inner side surface of the butterfly plate (31), and one end of the second telescopic rod (39) passes through the butterfly plate (31) on the principle of the valve stem (33).

4. The drain valve for pipeline detector according to claim 3, characterized in that: A shock absorbing sleeve (310) is arranged at the interval between the outer cylinder (1) and the inner cylinder (2); the shock absorbing sleeve (310) is made of rubber material; the inner side surface of the shock absorbing sleeve (310) is fixedly connected to the outer side surface of the inner cylinder (2); the outer side surface of the shock absorbing sleeve (310) is fixedly connected to the inner side surface of the outer cylinder (1); a hexagonal column (311) is also arranged at the interval between the outer cylinder (1) and the inner cylinder (2); a plurality of hexagonal columns (311) are evenly distributed at the interval between the outer cylinder (1) and the inner cylinder (2); and two ends of the hexagonal columns (311) are respectively fixedly connected to the sides of the outer cylinder (1) and the inner cylinder (2) that are close to each other.

5. The drain valve for pipeline detector according to claim 4, characterized in that: The drive assembly (34) comprises a shaft sleeve (341), wherein the shaft sleeve (341) is symmetrically arranged with the valve stem (33) as the center, and the sides of the two shaft sleeves (341) close to each other are fixedly connected to the outer side surface of the outer cylinder (1), and the surface of the valve stem (33) is rotatably connected to the inner side surface of the shaft sleeve (341), and the outer side surface of the shaft sleeve (341) is provided with a sliding groove (342), and the inner side surface of the sliding groove (342) is slidably connected to a sliding plate (343), and one end of the sliding plate (343) located inside the sliding groove (342) is fixedly connected to the surface of the valve stem (33).

6. The drain valve for pipeline detector according to claim 5, characterized in that: A slide rod (346) is arranged inside the slide groove (342), and both ends of the slide rod (346) are fixedly connected to the inner side surface of the slide groove (342), and the slide rod (346) passes through the slide plate (343), and the inner side surface of the slide plate (343) is slidably connected to the surface of the slide rod (346), and a first spring (347) is sleeved on the outside of the slide rod (346), and the end of the first spring (347) is fixedly connected to the inner side surface of the slide groove (342), and the other end of the first spring (347) is fixedly connected to the surface of the slide plate (343).

7. The drain valve for pipeline detector according to claim 6, characterized in that: The shaft sleeve (341) is provided with a winding drum (344) on its outer side, the inner side surface of the winding drum (344) is rotatably connected to the outer side surface of the shaft sleeve (341), the inner side surface of the winding drum (344) is fixedly connected to the side of the slide plate (343) away from the valve stem (33), the outer side surface of the winding drum (344) is fixedly connected to a steel wire (345), and the two ends of the steel wire (345) are respectively wound around the outside of the winding drum (344), and a rope body assembly (349) is provided at the interval between the two winding drums (344).

8. The drain valve for pipeline detector according to claim 7, characterized in that: Rope rails (348) are provided on both sides of the rope body assembly (349); the rope rails (348) are fixedly connected to the outer side surface of the outer cylinder (1), and the inner side surface of the rope rails (348) is slidably connected to the surface of the steel wire (345).

9. The drain valve for pipeline detector according to claim 8, characterized in that: The rope body assembly (349) comprises a box body (3491), the inner side surface of the box body (3491) is fixedly connected to a third telescopic rod (3492), one end of the third telescopic rod (3492) away from the box body (3491) is fixedly connected to the surface of the steel wire (345), and the output end of the third telescopic rod (3492) is fixedly connected to the steel wire (345).

10. The discharge valve for pipeline detector according to claim 9, characterized in that: The surface of the box body (3491) is symmetrically provided with limiting grooves (3493), the interiors of the two limiting grooves (3493) are slidably connected with rope loops (3494), and the inner side surfaces of the rope loops (3494) are slidably connected to the surface of the steel wire (345), and the outer side surfaces of the rope loops (3494) are fixedly connected with a groove plate (3495), and the groove plate (3495) is arranged inside the limiting grooves (3493), and the inner side surfaces of the groove plates (3495) are slidably connected to the surface of the box body (3491), and the inner side surfaces of the groove plates (3495) are fixedly connected with a second spring (3496), and the end of the second spring (3496) is fixedly connected to the groove plate (3495), and the other end of the second spring (3496) is fixedly connected to the inner side surface of the limiting groove (3493).

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