A pressure seal tensioner

Abstract

The utility model relates to a kind of with pressure leak stoppage tensioner, belong to the technical field of steel band tensioner, wherein, including: vertical support, chuck, horizontal support, clamping device, lead screw and swing handle, the upper end of vertical support is connected with chuck;The lower end of vertical support is connected with horizontal support;First recess for steel band to pass through is opened in chuck;Clamping device includes press block, screw rod, connecting block, thimble and screwing part, the left side of press block is slidably connected with vertical support;The top of lead screw is connected with press block, and lead screw penetrates horizontal support;Swing handle is threadedly connected with lead screw and located below horizontal support;Second recess for steel band to pass through and two through holes being communicated with second recess are opened in press block;The rear side of connecting block is connected with two thimbles, two thimbles are slidably installed in two through holes respectively;The rear end of screw rod is connected with the front side of press block, and screw rod penetrates connecting block;Screwing part is threadedly connected with screw rod and located in front of connecting block.The utility model is used for the with pressure leak stoppage of pipeline.

Description

Technical Field

[0001] This utility model relates to the technical field of steel strip tensioners, and in particular to a pressure-sealed leak-stopping tensioner. Background Technology

[0002] In the field of industrial pipeline maintenance, when a pipeline leaks under pressure, the steel strip tensioner is the core tool for achieving rapid leak sealing. It tightens and locks the steel strip around the leak point of the pipeline, and works with the sealing components to form an effective seal. It is widely used in emergency repair scenarios in industries such as petroleum, chemical, and water supply.

[0003] Chinese utility model patent CN 205950621U discloses a steel strip tensioner, which includes a frame with a movably connected clamping device on the frame. The clamping device includes a rotating block and a locking pin connected to the rotating block. The frame has a locking plate with a fixing opening for inserting the locking pin and a locking block threadedly engaged with the locking pin. Through the cooperation of the locking pin and the locking plate, the position of the rotating block is restricted, ensuring the rotating block firmly clamps the steel strip, reducing the possibility of the steel strip failing to tighten, and increasing the reliability of the steel strip tensioner.

[0004] The aforementioned prior art involves rotating a locking handle to drive a rotating block, which then uses the arc surface of the rotating block to press the steel strip. However, when in the pressed state, the distance between the arc surface and the groove rail is fixed and cannot be adjusted. This means that when dealing with sealing steel strips of varying thicknesses, the distance may be too large, resulting in insufficient tightening and inability to generate effective tension; or the distance may be too small, causing jamming when rotating the locking handle. Utility Model Content

[0005] In view of the problem that the existing technology is not convenient to adapt to steel strips of various thicknesses, the purpose of this utility model is to provide a pressure-sealed leak-stopping tensioner.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A pressurized leak-sealing tensioner includes: a vertical support 1, a clamp 2, a horizontal support 3, a clamping device 4, a lead screw 5, and a crank 6. The upper end of the vertical support 1 is connected to the clamp 2; the lower end of the vertical support 1 is connected to the horizontal support 3; the clamp 2 has a first groove 21 for the steel strip to pass through.

[0008] The clamping device 4 includes a pressure block 41, a screw 42, a connecting block 43, a push pin 44, and a screwing component 45. The left side of the pressure block 41 is slidably connected to the vertical support 1. The top end of the lead screw 5 is connected to the pressure block 41 and passes through the horizontal support 3. The crank handle 6 is threadedly connected to the lead screw 5 and is located below the horizontal support 3. The pressure block 41 has a second groove 411 for the steel strip to pass through and two through holes 412 communicating with the second groove 411. The rear side of the connecting block 43 is connected to two push pins 44, which are slidably installed in the two through holes 412 respectively. The rear end of the screw 42 is connected to the front side of the pressure block 41 and passes through the connecting block 43. The screwing component 45 is threadedly connected to the screw 42 and is located in front of the connecting block 43.

[0009] Furthermore, the clamping device 4 also includes a spring 46, with each of the two ejector pins 44 fitted with a spring 46; both springs 46 are located between the pressure block 41 and the connecting block 43.

[0010] Furthermore, the clamping device 4 also includes a rotating rod 47, which radially penetrates the screwing member 45.

[0011] Furthermore, a groove 413 is provided on the left side of the pressure block 41, and a slide rail 11 matching the groove 413 is provided on the right side of the vertical support 1.

[0012] Furthermore, the crank 6 includes a rocker arm 61 and a handle 62. The rocker arm 61 has a threaded hole that runs vertically through it, and this threaded hole is threadedly connected to the lead screw 5. Each end of the rocker arm 61 is rotatably connected to a handle 62.

[0013] Furthermore, it also includes a bearing 7, which is sleeved on the lead screw 5 and located between the cross bracket 3 and the crank handle 6.

[0014] Furthermore, it also includes a limiting component 8, which includes a front support 81, a rear support 82, a limiting rod 83, and a wing nut 84. The front support 81 and the rear support 82 are both connected to the right side of the pressure block 41. One end of the limiting rod 83 is hinged to the front support 81, and the other end of the limiting rod 83 is threaded to the wing nut 84. The rear support 82 has a first limiting groove 821, and the wing nut 84 is used to fasten the limiting rod 83 in the first limiting groove 821. The fastened limiting rod 83 is used to limit the steel strip in the second groove 411.

[0015] Furthermore, it also includes a cutting tool 9, which is mounted on the chuck 2 and is used to cut the steel strip.

[0016] Because this utility model employs the aforementioned technology, it has the following positive effects compared to existing technologies:

[0017] (1) The clamping device of this utility model includes a pressure block, a screw, a connecting block, a pin, and a screwing component. The pressure block has a second groove for the steel strip to pass through and two through holes communicating with the second groove. Two pins are connected to the rear side of the connecting block, and the two pins are slidably installed in the two through holes respectively. The rear end of the screw is connected to the front side of the pressure block, and the screw passes through the connecting block. The screwing component is threadedly connected to the screw and is located in front of the connecting block. A rotating rod is installed on the screwing component. In use, by rotating the rotating rod, the screwing component can be moved on the screw, thereby pushing the connecting block and the pin to move synchronously, so that the pin presses the steel strip in the second groove against the groove wall of the second groove. This utility model, through the threaded transmission cooperation between the screw and the screwing component, can drive the pin to slide smoothly along the through hole of the pressure block, realize the adjustment of the distance between the pin and the pressing surface of the second groove, and can more stably adapt to steel strips of different thicknesses compared with the prior art, making the operation more convenient. Attached Figure Description

[0018] Figure 1 This is a front view of one embodiment of a pressurized leak-sealing tensioner according to this utility model;

[0019] Figure 2 This is a right view of one embodiment of a pressurized leak-sealing tensioner of this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of one embodiment of a pressurized leak-sealing tensioner of this utility model;

[0021] Figure 4 This is a right view of another embodiment of the pressure-sealing and tightening device of this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of another embodiment of the pressure-sealing and tightening device of this utility model;

[0023] Figure 6 This is an exploded view of the cutting tool of another embodiment of the pressure-sealing and tightening device of this utility model;

[0024] Figure 7 This is a top view of the clamping device of a pressure-sealing and tightening device according to this utility model.

[0025] In the attached diagram: 1. Vertical support; 11. Slide rail; 2. Chuck; 21. First groove; 22. Mounting hole; 23. Mounting slot; 3. Horizontal support; 4. Clamping device; 41. Pressure block; 411. Second groove; 412. Through hole; 413. Slide groove; 42. Screw; 43. Connecting block; 44. Ejector pin; 45. Tightening component; 46. Spring; 47. Rotating rod; 5. Lead screw; 6. Handle; 61. Rocker arm; 62. Handle; 8. Limiting assembly; 81. Front support; 811. Second limiting slot; 82. Rear support; 821. First limiting slot; 83. Limiting rod; 84. Wing nut; 9. Cutting tool; 91. Tool holder; 92. Tool body; 10. Outer shell. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0027] Please refer to Figures 1 to 7 As shown, a pressurized leak-sealing tensioner is provided, which includes: a vertical support 1, a clamp 2, a horizontal support 3, a clamping device 4, a lead screw 5 and a crank 6. The upper end of the vertical support 1 is connected to the clamp 2 as a whole; the lower end of the vertical support 1 is connected to the horizontal support 3 as a whole; the clamp 2 is provided with a first groove 21 for the steel strip to pass through.

[0028] The clamping device 4 includes a pressure block 41, a screw 42, a connecting block 43, a push pin 44, and a screwing component 45. The left side of the pressure block 41 is slidably connected to the vertical support 1. The top end of the lead screw 5 is connected to the bottom side of the pressure block 41, and the lead screw 5 passes through the horizontal support 3. The crank handle 6 is threadedly connected to the lead screw 5 and is located below the horizontal support 3. The pressure block 41 has a second groove 411 for the steel strip to pass through and two through holes 412 communicating with the second groove 411. The connecting block 43 is located in front of the pressure block 41, and two push pins 44 are connected to the rear side of the connecting block 43. The two push pins 44 are slidably installed in the two through holes 412 respectively, and the tips of the two push pins 44 can slide into the second groove 411. The rear end of the screw 42 is connected to the front side of the pressure block 41, and the screw 42 passes through the connecting block 43. The screwing component 45 is threadedly connected to the screw 42 and is located in front of the connecting block 43. The clamping device 4 clamps the steel strip. In use, the steel strip is placed simultaneously in the first groove 21 and the second groove 411. Rotating the screw 45 moves it forward on the screw 42, which in turn pushes the connecting block 43 and the ejector pin 44 to move synchronously, causing the ejector pin 44 to press the steel strip in the second groove 411 against the groove wall. When tightening the steel strip, rotating the crank handle 6 causes the screw 5 to pull the clamping device 4 away from the clamp 2, thus gradually tightening the steel strip on the pipeline and ultimately sealing the leak.

[0029] Furthermore, in a preferred embodiment, two ejector pins 44 are distributed in the left-right direction, and the screw 42 is located between the two ejector pins 44.

[0030] Furthermore, in a preferred embodiment, the clamping device 4 further includes a spring 46, with each of the two ejector pins 44 fitted with a spring 46; both springs 46 are located between the pressure block 41 and the connecting block 43. The springs 46 provide elastic support to the connecting block 43, thereby preventing the tip of the ejector pin 44 from contacting the groove wall of the second groove 411 under normal conditions, thus reserving sufficient space for the steel strip to be inserted, facilitating the smooth insertion of the steel strip.

[0031] Furthermore, in a preferred embodiment, the screwing member 45 is provided with a threaded hole, which is threadedly connected to the screw 42; furthermore, the screwing member 45 is an elongated hexagonal nut.

[0032] Furthermore, in a preferred embodiment, the clamping device 4 further includes a rotating rod 47, which radially penetrates the screwing member 45. Both ends of the rotating rod 47 extend to the outside of the screwing member 45, forming an operating part that can be gripped by the hand. By rotating the rotating rod 47, the operator can drive the screwing member 45 to move axially along the screw 42, thereby driving the connecting block 43 and the ejector pin 44 to slide synchronously.

[0033] Furthermore, in a preferred embodiment, a groove 413 is provided on the left side of the pressure block 41, and a slide rail 11 matching the groove 413 is provided on the right side of the vertical support 1.

[0034] Furthermore, in a preferred embodiment, the crank 6 includes a rocker arm 61 and a handle 62. The rocker arm 61 has a threaded hole that extends vertically, and this threaded hole is threadedly connected to the lead screw 5. A handle 62 is rotatably connected to each end of the rocker arm 61, and the two handles 62 are symmetrically distributed at both ends of the rocker arm 61. The axes of both handles 62 are parallel to the axis of the lead screw 5. Furthermore, each of the top ends of the two handles 62 is provided with a pivot, and the two pivots are rotatably mounted at both ends of the rocker arm 61. During operation, the operator can hold the handles 62 at both ends with both hands, and rotate the handles 62 to drive the rocker arm 61 to rotate synchronously. Simultaneously, the rotatable connection structure between the handles 62 and the rocker arm 61 allows the handles 62 to maintain a contact angle with the operator's hand during rotation, preventing relative slippage between the hand and the handles 62, further improving operational safety and convenience.

[0035] Furthermore, in a preferred embodiment, a bearing 7 is also included, which is sleeved on the lead screw 5 and located between the cross bracket 3 and the crank handle 6; further, the bearing 7 is a thrust ball bearing. The function of the bearing 7 is to reduce friction and prevent the crank handle 6 from directly contacting the cross bracket 3.

[0036] Furthermore, in a preferred embodiment, the thrust ball bearing is provided with a cylindrical outer shell 10, with an opening at the upper end of the outer shell 10. The thrust ball bearing is installed into the outer shell 10 through this opening, and the outer shell 10 can protect the thrust ball bearing. When the rocker arm 6 is turned to tighten the steel belt, the bottom side of the outer shell 10 abuts against the rocker arm 61, and the top side of the bearing 7 abuts against the cross bracket 3.

[0037] Furthermore, in a preferred embodiment, a limiting component 8 is also included. The limiting component 8 includes a front support 81, a rear support 82, a limiting rod 83, and a wing nut 84. Both the front support 81 and the rear support 82 are connected to the right side of the pressure block 41. One end of the limiting rod 83 is hinged to the front support 81, and the other end of the limiting rod 83 is threaded to the wing nut 84. A first limiting groove 821 is provided on the rear support 82. The wing nut 84 is used to fasten the limiting rod 83 in the first limiting groove 821. The fastened limiting rod 83 is used to limit the steel strip in the second groove 411 and prevent the steel strip from coming out of the second groove 411.

[0038] Furthermore, in a preferred embodiment, a second limiting groove 811 is provided on the front support 81, and a shaft is connected in the second limiting groove 811, with one end of the limiting rod 83 rotatably sleeved on this shaft.

[0039] Furthermore, in a preferred embodiment, a cutting tool 9 is also included. The cutting tool 9 is mounted on the chuck 2 and is used to cut the steel strip within the first groove 21. Please refer to [reference needed]. Figures 4 to 6 .

[0040] Furthermore, in a preferred embodiment, the chuck 2 has a through mounting hole 22, which communicates with the first groove 21; the cutter 9 includes a shank 91 and a cutter body 92, the cutter body 92 being rotatably mounted in the mounting hole 22; the left end of the chuck 2 has a mounting groove 23, which communicates with the mounting hole 22; one end of the shank 91 is placed in the mounting groove 23 and connected to the cutter body 92, the shank 91 being used to control the rotation of the cutter body 92, and when the shank 91 is rotated upwards by a certain angle, the cutter body 92 cuts the steel strip in the first groove 21. Please refer to [reference needed]. Figures 4 to 6 .

[0041] Operating steps:

[0042] 1. Determine the outer diameter of the pipe and the size of the leak.

[0043] 2. Cut the steel strip according to the circumference of the pipe. The length of the steel strip should be 150mm-200mm longer than the circumference of the pipe.

[0044] 3. Fix two steel buckles to one end of the steel strip.

[0045] Fourth, select a suitable film and cover the steel plate on top of the film, i.e., cladding.

[0046] 5. Wrap the cut steel strip around the pipe, and thread the end of the steel strip without the buckle through the buckle; place a suitable clip under the steel strip, but do not place it directly on the leak, just close to the leak.

[0047] 6. Tighten the steel strip using this tensioner: Place the steel strip into the first groove 21 and the second groove 411. Then, rotate the limiting rod 83 into the first limiting groove 821, and then tighten the wing nut 84 so that it fits tightly against the rear side of the rear support 82. The fixed limiting rod 83 can prevent the steel strip from coming out of the second groove 411.

[0048] 7. Further tightening of the steel strip using this tensioner: Place the top of the clamp 2 against the steel strip buckle, slide the pressure block 41 closer to the clamp 2, then rotate the rotating rod 47 to drive the ejector pin 44 to clamp the steel strip in the second groove 411. Next, turn the crank handle 6 until the bearing 7 abuts against the crank handle 61 and the cross bracket 3, then continue turning the crank handle 6. Under the limiting action of the cross bracket 3, the screw 5 drives the clamping device 4 to pull the steel strip away from the clamp 2, thereby gradually tightening the steel strip on the pipe. It is important to note that the tension of the steel strip should be moderate to ensure that the steel strip and the clamp can slide.

[0049] 8. Further tighten the steel band using this tensioner: slide the steel band and slipper over the leak point, then continue to rotate and turn the handle 6 to further tighten the steel band on the pipe until the leak is sealed and the leak point is no longer leaking.

[0050] 9. Tighten the bolts on the steel strap buckle evenly.

[0051] 10. Remove the tensioner, then roll up the excess steel strip or use the knife 9 to cut off the excess steel strip. The leak sealing is now complete.

[0052] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0053] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pressurized leak-sealing tensioner, characterized in that: It includes a vertical support (1), a clamp (2), a horizontal support (3), a clamping device (4), a lead screw (5), and a crank (6). The upper end of the vertical support (1) is connected to the clamp (2); the lower end of the vertical support (1) is connected to the horizontal support (3); the clamp (2) has a first groove (21) for the steel strip to pass through. The clamping device (4) includes a pressure block (41), a screw (42), a connecting block (43), a pin (44), and a screwing component (45). The left side of the pressure block (41) is slidably connected to the vertical support (1); the top end of the lead screw (5) is connected to the pressure block (41), and the lead screw (5) passes through the horizontal support (3); the crank handle (6) is threadedly connected to the lead screw (5) and is located below the horizontal support (3); the pressure block (41) has a first opening for the steel strip to pass through. The second groove (411) and two through holes (412) communicating with the second groove (411); the rear side of the connecting block (43) is connected to two ejector pins (44), which are slidably installed in the two through holes (412); the rear end of the screw (42) is connected to the front side of the pressure block (41), and the screw (42) passes through the connecting block (43); the screwing part (45) is threadedly connected to the screw (42) and is located in front of the connecting block (43).

2. The pressurized leak-sealing tensioner according to claim 1, characterized in that: The clamping device (4) also includes a spring (46), and each of the two ejector pins (44) is fitted with a spring (46); both springs (46) are located between the pressure block (41) and the connecting block (43).

3. The pressurized leak-sealing tensioner according to claim 1, characterized in that: The clamping device (4) also includes a rotating rod (47) that radially penetrates the screwing member (45).

4. The pressurized leak-sealing tensioner according to claim 1, characterized in that: A groove (413) is provided on the left side of the pressure block (41), and a slide (11) matching the groove (413) is provided on the right side of the vertical support (1).

5. A pressurized leak-sealing tensioner according to claim 1, characterized in that: The crank (6) includes a rocker arm (61) and a handle (62). The rocker arm (61) has a threaded hole that runs through the top and bottom, and this threaded hole is threadedly connected to the lead screw (5). Each end of the rocker arm (61) is rotatably connected to a handle (62).

6. A pressurized leak-sealing tensioner according to claim 1, characterized in that: It also includes a bearing (7), which is sleeved on the lead screw (5) and located between the cross bracket (3) and the crank (6).

7. A pressurized leak-sealing tensioner according to claim 1, characterized in that: It also includes a limiting component (8), which includes a front support (81), a rear support (82), a limiting rod (83), and a wing nut (84). The front support (81) and the rear support (82) are both connected to the right side of the pressure block (41). One end of the limiting rod (83) is hinged to the front support (81), and the other end of the limiting rod (83) is threaded to the wing nut (84). The rear support (82) has a first limiting groove (821). The wing nut (84) is used to fasten the limiting rod (83) in the first limiting groove (821). The fastened limiting rod (83) is used to limit the steel strip in the second groove (411).

8. A pressurized leak-sealing tensioner according to claim 1, characterized in that: It also includes a cutting tool (9) mounted on the chuck (2) for cutting steel strip.

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