A pipe sealing device

Abstract

This utility model provides a pipeline leak-sealing device, including leak-sealing mechanisms disposed opposite to each other on the outer side of the pipeline, and a connecting mechanism selectively disposed on the leak-sealing mechanisms for fixing the oppositely disposed leak-sealing mechanisms together, so that the leak-sealing mechanisms and the pipeline are in close contact. Each leak-sealing mechanism includes a sealing portion, the radially inner side of which is formed by an arc surface, allowing it to conform to the pipeline wall. A fixing portion extending axially outward is also provided on both sides of the sealing portion. The connecting mechanism is disposed on the fixing portion for selectively connecting the oppositely disposed leak-sealing mechanisms together, so that the radially inner side of the sealing portion conforms to the pipeline wall. This arrangement improves the pipeline sealing efficiency and also enhances the connection strength between the leak-sealing mechanisms.

Description

Technical Field

[0001] This utility model relates to the field of pipeline leak sealing technology, and in particular to a pipeline leak sealing device. Background Technology

[0002] During long-term use, leaks due to corrosion, external impact, aging, and other reasons are unavoidable in fluid supply pipelines. Once a leak occurs, it not only wastes resources but may also cause environmental pollution. Therefore, rapid and effective leak sealing measures are crucial.

[0003] In existing technologies, leak sealing in pipelines typically relies on manual binding of the leak point using tape or other non-wetting materials. While this method can achieve leak sealing, it is inefficient. Furthermore, when the fluid pressure inside the pipeline exceeds the strength of the manual binding, it can damage the binding, leading to continued leakage. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a pipeline leak-sealing device. To achieve the above objectives, this utility model adopts the following technical solution:

[0005] A pipeline leak-sealing device includes leak-sealing mechanisms disposed opposite to each other on the outer side of the pipeline, and a connecting mechanism selectively disposed on the leak-sealing mechanisms for fixing the oppositely disposed leak-sealing mechanisms together so that the leak-sealing mechanisms and the pipeline fit together.

[0006] The leak-sealing mechanism includes a sealing part, the inner radial side of which is formed into an arc surface, allowing it to fit against the pipe wall. On both sides of the sealing part, there are also axially extending fixing parts. The connecting mechanism is provided on the fixing parts and is used to connect the oppositely arranged leak-sealing mechanisms together in a selective manner, so that the inner radial side of the sealing part fits against the pipe wall.

[0007] Furthermore, a sealing portion is provided on the radially inner side of the sealing portion. The sealing portion is made of a flexible material and is used to deform along the contour of the pipeline to wrap the pipeline.

[0008] Furthermore, the connecting mechanism includes a through hole provided on the fixing part, and a threaded connector located radially outside the through hole on one side, and also includes a threaded fastener configured to allow passage through the through hole on the other side and to engage with each other.

[0009] Furthermore, the device also includes a lifting mechanism for driving the sealing mechanism and the connecting mechanism to move axially, and a drive mechanism disposed on the lifting mechanism for driving the oppositely disposed sealing mechanism to move towards each other. The drive mechanism is also provided with a tightening mechanism for selectively actuating the rotation of the threaded fastener.

[0010] Furthermore, the lifting mechanism includes a receiving part for receiving the plugging mechanism and the connecting mechanism, and a lifting part connected to the receiving part for driving the receiving part to move axially.

[0011] Furthermore, the drive mechanism includes a fixed plate that is disposed on the receiving part in a corresponding manner and extends upward, and a telescopic part that is connected to the fixed plate and extends radially inward. The leak-sealing mechanism abuts against the free end of the telescopic part to receive the force from the telescopic part, thereby moving radially inward.

[0012] Furthermore, a connecting plate is fixed to the free end of the telescopic part. The connecting plate is made of magnetic material and is used to fix it to the leak-sealing mechanism. The screwing mechanism is fixed to the connecting plate and allows the threaded fastener to move.

[0013] Furthermore, the screwing mechanism includes a motor mounted on the connecting plate and a reducer mounted on the force output end of the motor, the force output end of the reducer being fixed together with the threaded fastener.

[0014] Furthermore, a sleeve with a polygonal inner contour is provided at the free end of the reducer, the sleeve being configured to allow it to engage with threaded fasteners.

[0015] Furthermore, the lifting unit includes a first lifting rod, a second lifting rod sleeved within the first lifting rod and allowing movement along the axial direction of the first lifting rod, and a locking portion disposed on the first lifting rod, the locking portion being configured to selectively fix the first lifting rod and the second lifting rod together relative to each other.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This utility model includes a leak-sealing mechanism disposed opposite to each other on the outer side of the pipeline, and a connecting mechanism selectively disposed on the leak-sealing mechanism for fixing the oppositely disposed leak-sealing mechanisms together, so that the leak-sealing mechanisms and the pipeline are in close contact. The leak-sealing mechanism includes a sealing part, the radially inner side of which is formed by an arc surface, allowing it to fit against the pipeline wall. A fixing part extending axially outward is also provided on both sides of the sealing part. The connecting mechanism is disposed on the fixing part and is used to selectively connect the oppositely disposed leak-sealing mechanisms together, so that the radially inner side of the sealing part fits against the pipeline wall. This arrangement improves the efficiency of pipeline sealing and also enhances the connection strength between the leak-sealing mechanisms. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a schematic diagram of the overall structure of the pipeline leak-sealing device according to an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of the leak-stopping mechanism, the connecting mechanism, and the screwing mechanism combined in an embodiment of the present utility model.

[0021] Figure 3 This is a schematic diagram of the overall structure of the pipeline sealing device from another perspective of an embodiment of this utility model;

[0022] Figure 4 This is a schematic diagram of the overall structure of the lifting part and the locking part combined in an embodiment of the present utility model.

[0023] In the above figures: pipeline leak sealing device 100, leak sealing mechanism 1, sealing part 11, sealing part 111, fixing part 12, connecting mechanism 2, through hole 21, threaded connector 22, threaded fastener 23, lifting mechanism 3, receiving part 31, lifting part 32, first lifting rod 321, second lifting rod 322, locking part 33, second connecting hole 331, first connecting hole 332, locking part 333, receiving sleeve 3331, limiting rod 3332, holding rod 3333, movable groove 3334, elastic element 334, driving mechanism 4, fixing plate 41, telescopic part 42, connecting plate 43, screwing mechanism 5, motor 51, reducer 52, control mechanism 6, first control module 61, second control module 62, anti-slip sleeve 7. Detailed Implementation

[0024] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0025] To better understand the purpose, structure, and function of this utility model, the following detailed description of a pipeline sealing device is provided in conjunction with the accompanying drawings.

[0026] Figure 1 The schematic diagram illustrates the overall structure of the pipeline leak-sealing device according to this utility model. (In such...) Figure 1 In the illustrated embodiment, the pipeline sealing device 100 includes a sealing mechanism 1 disposed radially outside the pipeline (not shown in the figure), and a connecting mechanism 2 selectively disposed on the sealing mechanism 1 for fixing the oppositely disposed sealing mechanisms 1 together. In this way, the sealing mechanism 1 can fit snugly against the pipeline, thereby achieving the sealing of leaks at the pipeline rupture point.

[0027] In this embodiment, as Figure 2 As shown, the leak-sealing mechanism 1 includes a sealing part 11, the inner radial side of which is formed by an arc, allowing it to fit snugly against the pipe wall. In this way, when the oppositely positioned sealing parts 11 are connected together, their inner radial sides can fit tightly against the pipe wall. This further enables leak sealing.

[0028] At the same time, such as Figure 2 As shown, axially outwardly extending fixing parts 12 are also provided on both sides of the sealing part 11. The connecting mechanism 2 is provided on the fixing part 12 and is used to connect the oppositely arranged plugging mechanisms 1 together in a selective manner so that the radial inner side of the sealing part 11 fits against the pipe wall.

[0029] According to a preferred embodiment of the present invention, such as Figure 2 As shown, a sealing portion 111 is also provided along the contour of the sealing portion 11 on the radially inner side of the sealing portion 11, and the sealing portion 111 is made of a flexible material. In this embodiment, the sealing portion 111 is made of rubber.

[0030] In this way, when the opposing sealing parts 11 are fastened to the pipeline and connected together, the sealing part 111 will be subjected to radial forces from the pipeline and the sealing part 11, causing the sealing part 111 to undergo elastic deformation under the pressure of these forces until both sides of the sealing part 111 are respectively in contact with the radially outer side of the pipeline and the radially inner side of the sealing part 11. This further improves the leak-sealing effect on the pipeline.

[0031] In one embodiment, such as Figure 2As shown, the connecting mechanism 2 includes a through hole 21 on the fixing part 12 and a threaded connector 22 located radially outward of the through hole 21 on one side. The connecting mechanism 2 also includes a threaded fastener 23, which is configured to pass through the through hole 21 on the other side and engages with the threaded fastener 23. In this embodiment, the threaded connector 22 is a nut, while the threaded fastener 23 is a bolt that engages with the nut.

[0032] In this configuration, when the device 100 is needed to seal leaks in the pipeline, the sealing part 111 is first laid on the radial inner side of the two plugging parts 11. At the same time, the plugging parts 11 are arranged on the radial outer side of the pipeline leak in a corresponding manner.

[0033] At this time, the threaded fastener 23 is inserted into the fixing part 12 through the through hole 21 on one side of the fixing part 12. At the same time, a force is applied to the sealing parts 11 located on the outer side of the pipe path, so that the sealing parts 11 move towards each other until the sealing parts 11 located on the outer side of the pipe path abut against each other, and so that the threaded fastener 23 and the threaded connector 22 abut against each other.

[0034] At this time, a force is applied to the threaded fastener 23 along the circumferential direction, thereby driving the threaded fastener 23 to rotate. During this process, the threaded fastener 23 will continuously engage with the threaded connector 22. Simultaneously, the sealing part 11 and the pipeline will also apply a radial force to the sealing part 111, thereby compressing the sealing part 111 to undergo elastic deformation, thus causing the sealing part 111 and the pipeline to adhere to each other. As the threaded fastener 23 and the threaded connector 22 continue to engage, the opposing sealing parts 11 will be relatively fixed together. Thus, the leak-sealing operation of the pipeline is achieved.

[0035] In one embodiment, such as Figure 1 As shown, the device 100 also includes a lifting mechanism 3 for driving the sealing mechanism 1 and the connecting mechanism 2 to move axially, and a driving mechanism 4 disposed on the lifting mechanism 3 for driving the oppositely disposed sealing mechanism 1 to move towards each other. The driving mechanism 4 is also provided with a tightening mechanism 5 for selectively actuating the threaded fastener 23 to rotate.

[0036] In this configuration, the lifting mechanism 3 can transport the sealing mechanism 1 and the connecting mechanism 2 to a higher position (a distance from the horizontal plane). Simultaneously, the driving mechanism 4 and the tightening mechanism 5 located on the lifting mechanism 3 connect the sealing parts 11 at the higher position, performing a leak-sealing operation on the pipeline. This expands the applicability of the device 100.

[0037] In one embodiment, such as Figure 3 As shown, the lifting mechanism 3 includes a receiving part 31 for receiving the sealing mechanism 1 and the connecting mechanism 2, and a lifting part 32 connected to the receiving part 31 for driving the receiving part 31 to move axially. The receiving part 31 is configured as a planar structure so that the sealing mechanism 1 and the connecting mechanism 2 can be stably mounted on the receiving part 31.

[0038] At the same time, such as Figure 3 As shown, the lifting section 32 includes a first lifting rod 321 and a second lifting rod 322 sleeved within the first lifting rod 321 and allowed to move axially along the first lifting rod 321. In this way, the axial length of the lifting section 32 can be adjusted as the second lifting rod 322 moves along the first lifting rod 321. Therefore, the lifting height of the sealing mechanism 1 and the connecting mechanism 2 can be adjusted.

[0039] According to a preferred embodiment of the present invention, such as Figure 1 As shown, the lifting mechanism 3 also includes a locking part 33 disposed on the first lifting rod 321. The locking part 33 is configured to selectively fix the first lifting rod 321 and the second lifting rod 322 together. In this way, the first lifting rod 321 and the second lifting rod 322 can be locked together in the adjusted position. Thus, the lengths of the first lifting rod 321 and the second lifting rod 322 in the adjusted position are locked.

[0040] In the illustrated embodiment, such as Figure 4 As shown, the locking part 33 includes a plurality of second connecting holes 331 arranged along the axial direction of the second lifting rod 322, and a first connecting hole 332 disposed on the first lifting rod 321 and near the end of the first lifting rod 321. Simultaneously, a locking member 333 is also provided on the first lifting rod 321, the locking member 333 being configured to selectively pass through the first connecting hole 332 and the second connecting hole 331, for locking the first lifting rod 321 and the second lifting rod 322 together.

[0041] In this embodiment, as Figure 4 As shown, the locking member 333 includes a receiving sleeve 3331 fixed relative to the first lifting rod 321, and a limiting rod 3332 disposed within the receiving sleeve 3331 and corresponding to the first connecting hole 332. A gripping rod 3333 extending radially outward is also provided on the limiting rod 3332.

[0042] At the same time, such as Figure 4As shown, a movable groove 3334 is also provided on the receiving sleeve 3331. The movable groove 3334 is configured to allow the placement of the gripping rod 3333 and to enable the gripping rod 3333 to move radially along the path formed by the movable groove 3334, thereby selectively moving the gripping rod 3333 into the first connecting hole 332 and the second connecting hole 331, thereby locking the first lifting rod 321 and the second lifting rod 322 together.

[0043] According to a preferred embodiment of the present invention, such as Figure 4 As shown, an elastic element 334 is also provided in the receiving sleeve 3331. The elastic element 334 is configured to abut against the limiting rod 3332 to drive the limiting rod 3332 to move radially outward, so as to continuously lock the first lifting rod 321 and the second lifting rod 322 together.

[0044] It should be noted that, as Figure 4 As shown, when it is necessary to adjust the axial length formed by the first lifting rod 321 and the second lifting rod 322, a radially outward force is applied to the holding rod 3333, thereby causing the limiting rod 3332 to move radially outward until it disengages from the second connecting hole 331, thus canceling the limiting of the second lifting rod 322.

[0045] In one embodiment, such as Figure 3 As shown, the driving mechanism 4 includes a fixed plate 41 that is correspondingly disposed on the receiving part 31 and extends upward, and a telescopic part 42 that is connected to the fixed plate 41 and extends radially inward. The leak-sealing mechanism 1 abuts against the free end of the telescopic part 42 to receive the force from the telescopic part 42, thereby moving radially inward. In this embodiment, the telescopic part 42 is configured as a hydraulic rod.

[0046] According to a preferred embodiment of the present invention, such as Figure 3 As shown, a connecting plate 43 is fixedly attached to the free end of the telescopic part 42. The connecting plate 43 is made of magnetic material and is used to fix it to the leak-sealing mechanism 1. The screwing mechanism 5 is fixed to the connecting plate 43 and allows the threaded fastener 23 to move. It should be noted that the leak-sealing mechanism 1 is made of ferrous or magnetic material.

[0047] In one embodiment, such as Figure 2 As shown, the screwing mechanism 5 includes a motor 51 mounted on the connecting plate 43 and a reducer 52 mounted on the force output end of the motor 51. The force output end of the reducer 52 is fixed together with the threaded fastener 23.

[0048] In this way, the force output by the motor 51, after being reduced in speed and increased in torque by the reducer 52, can be transmitted to the threaded fastener 23, thereby driving the threaded fastener 23 to move until the threaded fastener 23 and the threaded connector 22 mesh together. It should be noted that the connection method between the reducer 52 and the motor 51, as well as the method by which the reducer 52 reduces speed and increases torque, are well known to those skilled in the art. Therefore, they will not be described in detail here.

[0049] According to a preferred embodiment of the present invention, such as Figure 2 As shown, a sleeve (not shown in the figure) with a polygonal inner contour is also provided at the free end of the reducer 52. The sleeve is configured to allow it to engage with the threaded fastener 23. It should be noted that the outer contour of the end of the threaded fastener 23 is also polygonal. With this configuration, after the tightening mechanism 5 has tightened the threaded fastener 23, the tightening mechanism 5 can disengage from the threaded fastener 23 during the radial outward movement of the telescopic part 42.

[0050] In one embodiment, such as Figure 1 , 3 As shown, the pipeline sealing device 100 further includes a control mechanism 6 disposed on the lifting section 32. The control mechanism 6 includes a first control module 61 for connecting to the telescopic section 42 and capable of selectively activating the telescopic section 42. It also includes a second control module 62 for connecting to the motor 51 and capable of selectively activating the motor 51. It should be noted that the method by which the first control module 61 activates the telescopic section 42 and the second control module 62 activates the motor 51 is well known to those skilled in the art. Therefore, it will not be described in detail here.

[0051] According to a preferred embodiment of the present invention, such as Figure 3 As shown, an anti-slip sleeve 7 is also fitted on the first lifting rod 321. The anti-slip sleeve 7 is constructed in any way that is easy to hold, so that the staff can apply force to the first lifting rod 321, thereby making the first lifting rod 321 move in the axial direction.

[0052] The operation of the pipeline sealing device 100 according to this utility model is as follows.

[0053] First, a radially outward force is applied to the gripping rod 3333, causing the limiting rod 3332 to move radially outward until the limiting rod disengages from the second connecting hole 331. This causes the first lifting rod 321 and the second lifting rod 322 to disengage from each other.

[0054] At this time, a force is applied to the second lifting rod 322, causing the second lifting rod 322 to move outward along the axis of the first lifting rod 321 until the axial length formed by the first lifting rod 321 and the second lifting rod 322 meets the lifting requirements.

[0055] Simultaneously, the second connecting hole 331 is aligned with the first connecting hole 332, and the force applied to the gripping rod 3333 is removed. This allows the limiting rod 3332 to move along the first connecting hole 332 into the second connecting hole 331, thereby fixing the first lifting rod 321 and the second lifting rod 322 together, thus completing the axial length adjustment of the lifting section 32.

[0056] Furthermore, the leak-sealing mechanism 1 is disposed on the connecting plate 43 in a corresponding manner, and the leak-sealing mechanism 1 is attracted to the connecting plate 43. Additionally, the threaded fastener 23 is disposed within a sleeve (not shown) located on the reducer 52, and the threaded fastener 23 and the sleeve are fixed together circumferentially.

[0057] Then, the staff holds the anti-slip sleeve 7 and applies force to the anti-slip sleeve 7, thereby causing the first lifting rod 321 to move axially upward, which in turn causes the leak-sealing mechanism 1 to move axially upward until the leak-sealing mechanism 1 is located on the radial outside of the pipeline.

[0058] At this time, the first control module 61 and the second control module 62 are activated respectively, causing the telescopic part 42 and the motor 51 to start operating. During this process, the free end of the telescopic part 42 will continuously move radially inward, thereby driving the connecting plate 43 and the leak-sealing mechanism 1 that is adsorbed onto the connecting plate 43 to move towards each other.

[0059] Furthermore, during this process, the motor 51 will continuously drive the reducer 52 to move the threaded fastener 23, thereby continuously engaging the threaded fastener 23 with the threaded connector 22. This connects the opposing leak-sealing mechanisms 1 together.

[0060] Finally, the first control module 61 is activated, causing the free end of the telescopic part 42 to move radially outward, thereby disengaging the sleeve (not shown in the figure) and the threaded fastener 23 located on the reducer 52. This completes the leak sealing work of the pipeline.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A pipeline leak-sealing device, characterized in that, It includes a sealing mechanism (1) disposed on the outer side of the pipeline, and a connecting mechanism (2) disposed on the sealing mechanism (1) in a selective manner for fixing the sealing mechanism (1) together so that the sealing mechanism (1) and the pipeline fit together. The leak-stopping mechanism (1) includes a plugging part (11), the inner radial side of which is formed into an arc surface, allowing it to fit against the pipe wall. A fixing part (12) extending outward in the axial direction is also provided on both sides of the plugging part (11). The connecting mechanism (2) is provided on the fixing part (12) and is used to connect the leak-stopping mechanisms (1) arranged opposite to each other in a selective manner, so that the inner radial side of the plugging part (11) fits against the pipe wall.

2. The pipeline leak-sealing device according to claim 1, characterized in that, A sealing part (111) is also provided on the radial inner side of the plugging part (11). The sealing part (111) is made of a flexible material and is used to deform along the contour of the pipeline to wrap the pipeline.

3. The pipeline leak-sealing device according to claim 2, characterized in that, The connecting mechanism (2) includes a through hole (21) provided on the fixing part (12), and a threaded connector (22) located radially outside the through hole (21) on one side, and also includes a threaded fastener (23) configured to allow passage through the through hole (21) on the other side and to engage with each other.

4. The pipeline leak-sealing device according to claim 3, characterized in that, The device (100) further includes a lifting mechanism (3) for driving the plugging mechanism (1) and the connecting mechanism (2) to move axially, and a driving mechanism (4) provided on the lifting mechanism (3) for driving the plugging mechanism (1) to move in opposite directions. The driving mechanism (4) is also provided with a screwing mechanism (5) for actuating the threaded fastener (23) in a selected manner.

5. The pipeline sealing device according to claim 4, characterized in that, The lifting mechanism (3) includes a receiving part (31) for receiving the plugging mechanism (1) and the connecting mechanism (2), and a lifting part (32) connected to the receiving part (31) for driving the receiving part (31) to move in the axial direction.

6. The pipeline sealing device according to claim 5, characterized in that, The drive mechanism (4) includes a fixed plate (41) that is disposed on the receiving part (31) in a corresponding manner and extends upward, and a telescopic part (42) that is connected to the fixed plate (41) and extends radially inward. The leak-stopping mechanism (1) abuts against the free end of the telescopic part (42) to receive the force from the telescopic part (42) and thus moves radially inward.

7. The pipeline leak-sealing device according to claim 6, characterized in that, A connecting plate (43) is also fixed relative to the free end of the telescopic part (42). The connecting plate (43) is made of magnetic material and is fixed relative to the leak-sealing mechanism (1). The screwing mechanism (5) is fixed relative to the connecting plate (43) and allows the drive threaded fastener (23) to move.

8. The pipeline leak-sealing device according to claim 7, characterized in that, The screwing mechanism (5) includes a motor (51) mounted on a connecting plate (43) and a reducer (52) mounted on the force output end of the motor (51). The force output end of the reducer (52) is fixed together with the threaded fastener (23).

9. The pipeline sealing device according to claim 8, characterized in that, A sleeve with a polygonal inner contour is also provided at the free end of the reducer (52), the sleeve being configured to allow it to engage with a threaded fastener (23).

10. The pipeline sealing device according to any one of claims 5-9, characterized in that, The lifting part (32) includes a first lifting rod (321), a second lifting rod (322) sleeved inside the first lifting rod (321) and allowing movement along the axial direction of the first lifting rod (321), and a locking part (33) provided on the first lifting rod (321), the locking part (33) being configured to fix the first lifting rod (321) and the second lifting rod (322) together relative to each other in a selective manner.

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