Sealing device for steel wire mesh framework pipe

Abstract

The invention discloses a steel wire mesh framework pipe sealing device, and relates to the field of pipe body machining, the steel wire mesh framework pipe sealing device comprises a base, the base is provided with a sealing mechanism used for sealing the end of a cut pipe body and a clamping mechanism used for fixing the pipe body, and the clamping mechanism comprises a fixing ring fixedly connected to the base; a plurality of clamping rollers are arranged on the fixing ring, and linkage assemblies are arranged among the multiple clamping rollers; a power assembly is further included. According to the sealing device for the steel wire mesh framework pipe, the linkage assembly is arranged, when the power assembly drives one of the clamping rollers to move towards the pipe body, the multiple clamping rollers can synchronously move towards the pipe body through the linkage assembly, and therefore the sealing device has the beneficial effects that firstly, the clamping rollers can be driven to move towards the pipe body through the linkage assembly; the multi-direction clamping of the pipe body can be completed only through one power assembly, the number of the power assemblies is reduced, and the clamping force of the multiple clamping rollers to the pipe body can be controlled only by controlling the acting force applied by the power assemblies.

Description

Technical Field

[0001] The invention relates to the field of pipe body processing, and in particular to a wire mesh skeleton pipe sealing device. Background Art

[0002] As is known, the steel mesh skeleton tube is made of a composite of steel mesh and polymer materials, and has high strength, corrosion resistance and pressure resistance. When adjusting the length of the steel mesh skeleton tube, it needs to be cut, which exposes the steel wire at the end of the tube body. When the steel wire comes into contact with air or liquid, it will rust and easily cause the tube body to bulge. Therefore, after the steel mesh skeleton tube is cut, the end of the tube body is sealed with a molten sealing strip. During the sealing process, the tube body needs to be clamped.

[0003] For example, the Chinese patent document with the authorization announcement number CN211728373U, the announcement date 2020-10-23, and the name "A new cylindrical material clamping and fixing device for construction" includes a base and a support frame, a third telescopic rod is provided at the top of the inner side of the support frame, and an upper fixed block is provided at the bottom of the third telescopic rod, a fourth telescopic rod is provided in the middle of the inner side of the upper fixed block, and an upper pipe clamp is connected to the bottom of the fourth telescopic rod, a pressure sensor is provided on the inner side of the upper pipe clamp, and a telescopic spring is provided at the bottom of the pressure sensor, a rubber layer is provided at the bottom of the telescopic spring, and a lower pipe clamp is provided below the rubber layer. Beneficial effect: In the utility model, an equiangular annular clamping and fixing device is adopted, and the number of upper and lower pipe clamps to be clamped can be adjusted according to the size of the diameter of the pipe to be clamped, and the pipe can be clamped and fixed, so that the device can firmly clamp pipes of different diameters, is easy to operate, saves a lot of time, and improves work efficiency.

[0004] The shortcomings of the above-mentioned prior art are that, when clamping the tube body, multiple force-applying components are required to cooperate with multiple clamping components, and multiple force-applying components are used to provide a radial force to the multiple clamping components respectively, so that the tube body can be clamped from multiple directions. On the one hand, the number of force-applying components is increased, and on the other hand, the clamping strength of the multiple clamping components on tubes of different sizes cannot be controlled. Summary of the invention

[0005] The purpose of the present invention is to provide a wire mesh skeleton pipe sealing device to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A wire mesh skeleton pipe sealing device comprises a base, on which a sealing mechanism for sealing the end of the pipe body after cutting and a clamping mechanism for fixing the pipe body are arranged, the clamping mechanism comprises a fixing ring fixedly connected to the base, on which a plurality of clamping rollers are arranged, and a linkage assembly is arranged between the plurality of clamping rollers; and a power assembly is also included, after the pipe body to be sealed enters the fixing ring, when the power assembly drives one of the clamping rollers to move toward the pipe body, the linkage assembly drives the remaining clamping rollers to move synchronously toward the pipe body to achieve clamping of the pipe body.

[0008] In the above-mentioned wire mesh skeleton tube sealing device, there are six clamping rollers, and the six clamping rollers are arranged in an array about a fixed ring.

[0009] The above-mentioned wire mesh skeleton tube sealing device has two fixing rings, a mounting frame is arranged between the two fixing rings, a central axis is arranged on the mounting frame, the central axis passes through the mounting frame and is rotatably connected to the fixing ring, and the clamping roller is arranged on the mounting frame.

[0010] The above-mentioned wire mesh skeleton tube sealing device, the linkage assembly includes a transmission rod, there are multiple mounting frames, and the first transmission shaft and the second transmission shaft are rotatably arranged on the multiple mounting frames respectively, and the two ends of the transmission rod are respectively fixedly connected to the first transmission shaft on one mounting frame and the second transmission shaft on the adjacent mounting frame.

[0011] In the above-mentioned wire mesh skeleton tube sealing device, a first extension portion is provided on the first transmission shaft, and a first limiting groove adapted to the first extension portion is provided on the fixing ring.

[0012] In the above-mentioned wire mesh skeleton tube sealing device, a second extension portion is provided on the second transmission shaft, and a second limiting groove adapted to the second extension portion is provided on the fixing ring.

[0013] In the above-mentioned wire mesh skeleton tube sealing device, the power assembly includes a hydraulic cylinder, which is rotatably arranged on the base, wherein a third transmission shaft is arranged on one of the mounting frames, and the output end of the hydraulic cylinder is rotatably connected to the third transmission shaft.

[0014] In the above-mentioned wire mesh skeleton tube sealing device, the clamping roller is provided with a third extension portion, and the fixing ring is provided with a third limiting groove adapted to the third extension portion.

[0015] In the above-mentioned wire mesh skeleton tube sealing device, a supporting roller is rotatably arranged on the clamping roller, and a torsion spring is arranged between the supporting roller and the clamping roller.

[0016] In the above-mentioned wire mesh skeleton tube sealing device, the clamping roller includes a first section and a second section which are slidably connected to each other, and a passive pushing member for axially moving the second section is arranged between the first section and the second section.

[0017] In the above technical scheme, a wire mesh skeleton pipe sealing device provided by the present invention is provided with a linkage component. When the power component drives one of the clamping rollers to move toward the pipe body, the linkage component can make multiple clamping rollers move synchronously toward the direction of the pipe body. The advantages brought by this are, firstly, only one power component is required to complete the multi-directional clamping of the pipe body, reducing the number of power components; secondly, the clamping force of multiple clamping rollers on the pipe body can be controlled by simply controlling the force applied by the power component. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the overall structure of the clamping mechanism provided by an embodiment of the present invention;

[0021] Figure 3 A schematic diagram of the front view structure of a clamping mechanism provided in an embodiment of the present invention;

[0022] Figure 4 for Figure 3 Schematic diagram of radial cross-sectional structure;

[0023] Figure 5 A schematic diagram of the overall structure of a fixing ring provided in an embodiment of the present invention;

[0024] Figure 6 A schematic diagram of the overall internal structure of a fixing ring provided in an embodiment of the present invention;

[0025] Figure 7 A schematic diagram of a connection structure between a clamping roller and a supporting roller provided in another embodiment of the present invention;

[0026] Figure 8 A schematic diagram of the working process of a support roller provided by another embodiment of the present invention;

[0027] Fig. 9 A schematic diagram of a connection structure between a clamping roller and a supporting roller provided in yet another embodiment of the present invention;

[0028] Fig.10 for Fig. 9 Schematic diagram of radial cross-sectional structure;

[0029] Fig.11 for Fig. 9 Schematic diagram of the axial cross-sectional structure;

[0030] Fig.12 for Fig.11 A schematic diagram of the enlarged local structure in the middle.

[0031] Description of reference numerals:

[0032] 1. Base; 2. Fixed ring; 3. Clamping roller; 301. First section; 302. Second section; 4. Mounting frame; 5. Central axis; 6. Transmission rod; 7. First transmission shaft; 8. Second transmission shaft; 9. First extension portion; 10. First limiting groove; 11. Second extension portion; 12. Second limiting groove; 13. Hydraulic cylinder; 14. Third transmission shaft; 15. Third extension portion; 16. Third limiting groove; 17. Support roller; 18. Fan-shaped groove; 19. Connecting portion; 20. Limiting block; 21. Fourth limiting groove; 22. Spring pin; 23. Pin hole; 24. Elastic member; 25. First abutting rod; 26. Second abutting rod; 27. Notch; 28. Connecting plate; 29. ​​Inclined surface; 30. Reset rod. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] In the description of the present invention, it is necessary to understand that Figure 4 The position of the first transmission shaft 7 relative to the central axis 5 is up, and vice versa. The terms "center", "length", "width", "degree", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0035] Reference Figure 1-12A wire mesh skeleton pipe sealing device provided in an embodiment of the present invention comprises a base 1, on which a sealing mechanism (not shown) for sealing the end of the cut pipe body and a clamping mechanism for fixing the pipe body are provided, wherein the clamping mechanism comprises a fixing ring 2 fixedly connected to the base 1, on which a plurality of clamping rollers 3 are provided, and a linkage assembly is provided between the plurality of clamping rollers 3; and further comprises a power assembly, wherein after the pipe body to be sealed enters the fixing ring 2, when the power assembly drives one of the clamping rollers 3 to move toward the pipe body, the linkage assembly drives the remaining clamping rollers 3 to move toward the pipe body synchronously, so as to clamp the pipe body.

[0036] Specifically, the sealing mechanism can be a heating structure such as an electric heating plate, and the clamping mechanism can be two symmetrically arranged clamping plates. When sealing the end of the tube body, the sealing strip is attached to the cut end of the tube body, and then the tube body is controlled to move toward the electric heating plate. The high temperature released by the electric heating plate can turn the sealing strip into a molten state and attach it to the end of the tube body to seal the wire mesh inside the tube body. After the molten strip is cooled, it is polished to complete the entire sealing process of the tube body. This is a prior art and will not be repeated. One of the core innovations of the embodiment of the present invention is that the fixing ring 2 is fixedly connected to the base 1. In addition, multiple clamping rollers 3 are arranged on the fixed ring 2, and a power component and a linkage component are arranged. The power component can be an existing reciprocating drive component such as an electric push rod, and the linkage component can be a connecting rod structure. The purpose of such a setting is that when the power component drives one of the clamping rollers 3 to move toward the tube body, the linkage component can make multiple clamping rollers 3 move synchronously toward the direction of the tube body. The advantages brought by this are, firstly, only one power component is required to complete the multi-directional clamping of the tube body, reducing the number of power components. Secondly, by controlling the force applied by the power component, the clamping force of multiple clamping rollers 3 on the tube body can be controlled.

[0037] Preferably, there are six clamping rollers 3, and the six clamping rollers 3 are arranged in an array about the fixing ring 2. Specifically, multiple clamping rollers 3 can provide multiple contact points for the pipe body, which can increase the stability of the pipe body fixation on the one hand, and avoid the pipe body from being clamped and damaged on the other hand.

[0038] Preferably, there are two fixing rings 2 , a mounting frame 4 is provided between the two fixing rings 2 , a central axis 5 is provided on the mounting frame 4 , the central axis 5 passes through the mounting frame 4 and is rotatably connected to the fixing ring 2 , and the clamping roller 3 is provided on the mounting frame 4 . Specifically, the mounting frame 4 includes two approximately rhombus-shaped fixing plates, and the central axis 5 is arranged between the two fixing plates, and the central axis 5 is rotatably connected with the fixing ring 2, so that the mounting frame 4 as a whole can rotate around the central axis of the central axis 5, and the clamping roller 3 is arranged at the end of the mounting frame 4. The purpose of such a setting is that when the pipe body is not clamped, the clamping roller 3 is located in the gap between the two fixing rings 2. At this time, the pipe body is inserted into the fixing ring 2, and then the mounting frame 4 is driven to rotate around the central axis 5 as a whole, thereby driving the clamping roller 3 to rotate toward the inside of the fixing ring 2, so that the clamping roller 3 abuts against the outer wall of the pipe body to achieve clamping of the pipe body, and in this process, the movement stroke of the clamping roller 3 is arc-shaped, that is, when the clamping roller 3 contacts the outer peripheral surface of the pipe body and further clamps it, it will slide along the surface of the pipe body, and its force on the pipe body is smaller than the force of the clamping roller 3 directly along the radial direction of the pipe body, so as to avoid the pipe body from being clamped.

[0039] Preferably, the linkage assembly includes a transmission rod 6, and there are multiple mounting frames 4. The first transmission shaft 7 and the second transmission shaft 8 are rotatably arranged on the multiple mounting frames 4, and the two ends of the transmission rod 6 are respectively fixedly connected to the first transmission shaft 7 on one mounting frame 4 and the second transmission shaft 8 on the adjacent mounting frame 4. Specifically, there are preferably six mounting frames 4, and the six mounting frames 4 are arranged correspondingly with respect to the positions of the six clamping rollers 3. The first transmission shaft 7 and the second transmission shaft 8 are rotatably arranged between the two fixed plates and are located at the two inflection points of the rhombus of the fixed plates. The adjacent mounting frames 4 specifically refer to Figure 4 The purpose of the setting of the adjacent mounting frames 4 in the clockwise direction is that when one of the mounting frames 4 rotates around the central axis 5, it will drive the first transmission shaft 7 to rotate synchronously, thereby driving the second transmission shaft 8 on the adjacent mounting frame 4 to rotate around its corresponding central axis 5 through the transmission rod 6, and so on, thereby driving multiple mounting frames 4 to rotate synchronously, so as to drive multiple clamping rollers 3 to move synchronously in the direction close to the pipe body for clamping. After clamping, when one of the mounting frames 4 is controlled to rotate in the opposite direction around the central axis 5, it will drive multiple mounting frames 4 to rotate in the opposite direction synchronously, so that multiple clamping rollers 3 move synchronously in the direction away from the pipe body to loosen the pipe body.

[0040] Further, the first transmission shaft 7 is provided with a first extension 9, and the fixing ring 2 is provided with a first limiting groove 10 adapted to the first extension 9. Specifically, with respect to a single first transmission shaft 7, two first extensions 9 are provided, and are respectively located at the two ends of the first transmission shaft 7, and are coaxially arranged with the first transmission shaft 7. The first limiting groove 10 is provided at the outer edge of the fixing ring 2 and is arc-shaped. The effect of such a setting is that when the tube body is not clamped, the first extension 9 is located on the movement stroke of the first limiting groove 10. In the process of clamping the tube body, the first extension 9 will enter the first limiting groove 10 and abut against the inner wall of the first limiting groove 10, so that the mounting frame 4 cannot continue to rotate. In this way, the maximum rotation stroke of the limiting mounting frame 4, that is, the distance that the clamping roller 3 moves to the inside of the fixing ring 2 is the maximum value, and at this time, the spacing between the multiple clamping rollers 3 is the smallest, that is, the size of the clamped tube body is the smallest at this time.

[0041] Furthermore, a second extending portion 11 is provided on the second transmission shaft 8 , and a second limiting groove 12 adapted to the second extending portion 11 is provided on the fixing ring 2 . Specifically, with respect to a single second transmission shaft 8, two second extension portions 11 are provided, and are respectively located at the two ends of the second transmission shaft 8, and are coaxially arranged with the second transmission shaft 8. The second limiting groove 12 is also opened at the outer edge position of the fixing ring 2, but is staggered with the position of the first limiting groove 10. The purpose of such a setting is that when the tube body is not clamped, the second extension portion 11 is located inside the second limiting groove 12. At this time, the spacing between the multiple clamping rollers 3 is the largest, that is, the size of the clamped tube body is the largest at this time. In the process of clamping the tube body, the mounting frame 4 rotates so that the second extension portion 11 will move out of the second limiting groove 12 to achieve clamping of the tube body. After clamping, the mounting frame 4 rotates in the opposite direction. When the second extension portion 11 enters into the second limiting groove 12 and abuts against the inner wall of the second limiting groove 12, the mounting frame 4 cannot continue to rotate, thereby limiting the maximum reverse rotation stroke of the mounting frame 4.

[0042] Preferably, the power assembly includes a hydraulic cylinder 13 , which is rotatably disposed on the base 1 , wherein a third transmission shaft 14 is disposed on one of the mounting frames 4 , and an output end of the hydraulic cylinder 13 is rotatably connected to the third transmission shaft 14 . Specifically, a rotating seat is provided on the hydraulic cylinder 13, and the hydraulic cylinder 13 is connected to the base 1 through the rotating seat. A rotating hole is provided at the output end of the hydraulic cylinder 13, and the third transmission shaft 14 is fixedly provided on one of the mounting frames 4, and the rotating hole at the output end of the hydraulic cylinder 13 is rotatably connected to the third transmission shaft 14. The purpose of such a setting is that the output end of the hydraulic cylinder 13 is extended to provide power for the mounting frame 4 to rotate around the central axis 5, so as to achieve the clamping of the pipe body, and during the rotation of the mounting frame 4, the rotation stroke of the third transmission shaft 14 around the central axis 5 is an arc. Therefore, in order to adapt to the arc stroke of the third transmission shaft 14, during the rotation of the mounting frame 4, in addition to the relative rotation of the rotating hole and the third transmission shaft 14, the hydraulic cylinder 13 body also rotates relative to the base 1. Conversely, when the output end of the hydraulic cylinder 13 contracts, the mounting frame 4 will rotate in the opposite direction to achieve the loosening of the pipe body.

[0043] Further, the clamping roller 3 is provided with a third extension portion 15, and the fixing ring 2 is provided with a third limiting groove 16 adapted to the third extension portion 15. Specifically, for a single clamping roller 3, two third extension portions 15 are provided, and are respectively located at the two ends of the clamping roller 3, and are coaxially arranged with the clamping roller 3, and the third limiting groove 16 is provided at the inner edge of the fixing ring 2. The effect of such a setting is that when the pipe body is not clamped, the clamping roller 3 is located inside the third limiting groove 16, and at this time, the spacing between the multiple clamping rollers 3 is the largest, that is, at this time, the size of the clamped pipe body is the largest. In the process of clamping the pipe body, the mounting frame 4 rotates, so that the third extension portion 15 will move out of the third limiting groove 16 to achieve the clamping of the pipe body. After the clamping is completed, the mounting frame 4 rotates in the opposite direction, and when the third extension portion 15 enters the third limiting groove 16, it abuts against the inner wall of the third limiting groove 16, so that the mounting frame 4 cannot continue to rotate.

[0044] As another embodiment of the present invention, a support roller 17 is rotatably provided on the clamping roller 3 , and a torsion spring (not shown) is provided between the support roller 17 and the clamping roller 3 . Specifically, the support roller 17 is arranged parallel to the clamping roller 3, a fan-shaped groove 18 is provided on the outer circumferential surface of the clamping roller 3, a connecting portion 19 is provided on the support roller 17, the connecting portion 19 is rotatably arranged in the fan-shaped groove 18, and a torsion spring is provided between the connecting portion 19 and the fan-shaped groove 18. The effect of such an arrangement is that the support roller 17 is coaxially arranged with the clamping roller 3, the connecting portion 19 includes a circular ring segment and an arc segment, an annular groove is provided inside the clamping roller 3, the connecting portion 19 is rotatably connected with the annular groove so that the support roller 17 can rotate around the central axis of the clamping roller 3, the elastic force of the torsion spring makes the support roller 17 have a tendency to rotate clockwise, and the support roller 17 is located in front of the movement stroke of the clamping roller 3. The effect of such an arrangement is that in the process of clamping the tube body, the support roller 17 is located in front of the movement stroke of the clamping roller 3, that is, in the process of clamping the tube body, the support roller 17 will preferentially abut against the outer circumferential surface of the tube body to control the rotation of the mounting frame 4. When the support roller 17 abuts against the tube body After that, the supporting roller 17 will rotate counterclockwise around the central axis of the clamping roller 3, and store force in the torsion spring, control the mounting frame 4 to continue to rotate, which will make the clamping roller 3 abut against the outer peripheral surface of the tube body for clamping. When the clamping is completed, the mounting frame 4 is controlled to rotate in the opposite direction, thereby driving the supporting roller 17 and the clamping roller 3 to rotate synchronously. During the rotation process, the supporting roller 17 will move away from the tube body. At this time, the elastic force of the torsion spring is released to drive the supporting roller 17 to passively reset. The advantages brought by this are: first, the supporting roller 17 and the clamping roller 3 abut against the outer peripheral surface of the tube body at the same time, thereby adding a support point to the clamping process of the tube body. On the one hand, it can improve the stability of clamping, and on the other hand, it can avoid the tube body from being clamped. Second, during the rotation of the clamping roller 3, the supporting roller 17 will rotate around the central axis of the clamping roller 3, so that the supporting roller 17 will always fit with the outer wall of the tube body, so that the supporting roller 17 can passively adapt to tubes of different sizes.

[0045] It should be noted that, after the tube body is clamped, the end of the tube body is heated by the electric heating plate, which will cause the sealing strip to become molten, which may easily cause a portion of the strip to slip off, resulting in a gap between the tube body and the electric heating plate, thereby causing the heating efficiency of the electric heating plate to be low. As another embodiment of the present invention, the clamping roller 3 includes a first section 301 and a second section 302 that are slidably connected to each other, and a passive driving member for axially moving the second section 302 is provided between the first section 301 and the second section 302. Specifically, the first section 301 is coaxially arranged with the second section 302, and the first section 301 is located inside the second section 302, a limiting block 20 is provided on the first section 301, and a fourth limiting groove 21 is provided on the second section 302, and the limiting block 20 is slidably connected to the fourth limiting groove 21, so that the first section 301 and the second section 302 can only move axially but cannot rotate relative to each other, and the passive driving member can be an existing reciprocating drive component such as a cylinder, and its output end is connected to the second section 302. The purpose of such a setting is that after the tube body is clamped and the electric heating plate is heated, the second section 302 is controlled by the passive driving member to move toward the electric heating plate to make up for the gap between the tube body and the electric heating plate, thereby improving the heating efficiency of the sealing strip.

[0046] As an alternative to the above-mentioned cylinder driving the second section 302 to reciprocate, preferably, a spring pin 22 is provided on the clamping roller 3, a pin hole 23 is opened on the first section 301, the spring pin 22 passes through the second section 302 and is plugged into the pin hole 23, an elastic member 24 is provided between the second section 302 and the fixing ring 2, a first abutment rod 25 is provided on the connecting portion 19, a second abutment rod 26 is provided on the spring pin 22, and the second abutment rod 26 is located on the movement stroke of the first abutment rod 25. Specifically, the spring pin 22 includes a pin shaft and an elastic member sleeved on the outside of the pin shaft, one end of the elastic member is fixedly connected to the outer circumferential surface of the clamping roller 3, and the other end is fixedly connected to the pin shaft. In this embodiment, a notch 27 is provided on the annular segment of the connecting portion 19 to prevent the annular segment from interfering with the spring pin 22 during the rotation of the supporting roller 17. The length of the first segment 301 is greater than the length of the second segment 302, and a connecting plate 28 is provided on the portion of the first segment 301 protruding from the second segment 302. The elastic member 24 is preferably a spring, one end of which is fixedly connected to the end of the second segment 302, and the other end is fixedly connected to the connecting plate 28, and the elastic member 24 is always in a compressed state. The first abutting rod 25 is an arc-shaped rod-shaped structure, and the second abutting rod 26 is an extended area on the spring pin 22. The effect of such a setting is that when the tube body is not clamped, the spring pin 22 is inserted into the pin hole 23, so that the first segment 301 and the second segment 302 can be connected as a whole. During the rotation of the mounting frame 4, The first section 301 and the second section 302 move synchronously. In the process of the support roller 17 abutting against the tube body, the support roller 17 rotates counterclockwise around the central axis of the clamping roller 3, thereby driving the first abutting rod 25 to abut against the second abutting rod 26, so that the second abutting rod 26 and the spring pin 22 move synchronously in the direction away from the central axis of the clamping roller 3, and accumulate force on the elastic component on the spring pin 22. At this time, the second section 302 is in a slidable state (but under the friction between the support roller 17, the clamping roller 3 and the tube body and the abutment between the tube body and the electric heating plate, the tube body cannot move). When the sealing strip at the end of the tube body is melted to generate a gap between the tube body and the electric heating plate, the elastic force of multiple elastic members 24 is released at the same time, thereby driving the second section 302 to move toward the direction of the electric heating plate, and under the action of friction, driving the tube body to synchronously move a short distance toward the direction of the electric heating plate, thereby passively compensating for the gap generated during the heating process of the sealing strip.

[0047] Furthermore, the pin hole 23 is provided with an inclined surface 29. After the second section 302 slides relative to the first section 301, the inclined surface 29 is located on the movement stroke of the end of the spring pin 22. A reset rod 30 is fixedly connected to the fixed ring 2. The reset rod 30 is located on the movement stroke of the second abutment rod 26. Specifically, there are multiple reset rods 30, and they are arranged correspondingly with respect to the positions of the multiple clamping rollers 3. The purpose of such a setting is that when the spring pin 22 is pulled out of the pin hole 23, the elastic force of the elastic member 24 is released, thereby driving the second section 302 and the spring pin 22 to move synchronously. However, during the movement of the second section 302, the inclined surface 29 is always located on the movement stroke of the end of the spring pin 22. When the tube body is clamped, the mounting frame 4 is controlled to rotate in the opposite direction, thereby driving the clamping roller 3 and the support roller 17 to rotate synchronously. At this time, the first abutment rod 25 and the second abutment rod 26 gradually move away from each other. At this time, the spring pin 22 The elastic force is released, causing the end of the spring pin 22 to abut against the inclined surface 29. Since the elastic force of the spring pin 22 is small, the end cannot be further slid along the inclined surface 29 into the pin hole 23. Therefore, during the subsequent rotation of the mounting frame 4, the second abutment rod 26 will abut against the end of the reset rod 30, thereby driving the end of the spring pin 22 to further abut against the inclined surface 29, thereby causing the end of the spring pin 22 to slide along the inclined surface 29 into the pin hole 23, and in this process, the second section 302 will be driven to slide in the opposite direction and accumulate force in the elastic member 24, thereby realizing passive reset of the second section 302 and the spring pin 22.

[0048] It should be noted that there should be no less than two groups of clamping mechanisms. Multiple groups of clamping mechanisms clamp the tube body at the same time, thereby improving the stability of the tube body clamping and doubling the number of elastic members 24 to increase the driving force when the tube body moves horizontally.

[0049] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A wire mesh skeleton pipe sealing device, comprising a base, on which a sealing mechanism for sealing the end of the cut pipe body and a clamping mechanism for fixing the pipe body are arranged, characterized in that: The clamping mechanism comprises a fixing ring fixedly connected to the base, a plurality of clamping rollers are arranged on the fixing ring, and a linkage assembly is arranged between the plurality of clamping rollers; It also includes a power component. After the tube to be sealed enters the fixing ring, when the power component drives one of the clamping rollers to move toward the tube, the linkage component drives the other clamping rollers to move toward the tube synchronously to clamp the tube.

2. A wire mesh skeleton pipe sealing device according to claim 1, characterized in that: There are six clamping rollers, and the six clamping rollers are arranged in an array about a fixed ring.

3. A wire mesh skeleton pipe sealing device according to claim 1, characterized in that: There are two fixing rings, a mounting frame is arranged between the two fixing rings, a central axis is arranged on the mounting frame, the central axis passes through the mounting frame and is rotatably connected with the fixing rings, and the clamping roller is arranged on the mounting frame.

4. A wire mesh skeleton pipe sealing device according to claim 3, characterized in that: The linkage assembly includes a transmission rod, and there are multiple mounting frames, on which the first transmission shaft and the second transmission shaft are rotatably arranged respectively, and the two ends of the transmission rod are respectively fixedly connected to the first transmission shaft on one mounting frame and the second transmission shaft on the adjacent mounting frame.

5. A wire mesh skeleton pipe sealing device according to claim 4, characterized in that: The first transmission shaft is provided with a first extending portion, and the fixing ring is provided with a first limiting groove adapted to the first extending portion.

6. A wire mesh skeleton pipe sealing device according to claim 4, characterized in that: The second transmission shaft is provided with a second extension portion, and the fixing ring is provided with a second limiting groove adapted to the second extension portion.

7. A wire mesh skeleton pipe sealing device according to claim 3, characterized in that: The power assembly includes a hydraulic cylinder, which is rotatably arranged on the base, wherein a third transmission shaft is arranged on one of the mounting frames, and an output end of the hydraulic cylinder is rotatably connected to the third transmission shaft.

8. The wire mesh skeleton pipe sealing device according to claim 5, characterized in that: The clamping roller is provided with a third extension portion, and the fixing ring is provided with a third limiting groove matched with the third extension portion.

9. A wire mesh skeleton pipe sealing device according to claim 1, characterized in that: A supporting roller is rotatably arranged on the clamping roller, and a torsion spring is arranged between the supporting roller and the clamping roller.

10. A wire mesh skeleton pipe sealing device according to claim 9, characterized in that: The clamping roller comprises a first section and a second section which are slidably connected to each other, and a passive pushing member for axially moving the second section is arranged between the first section and the second section.

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