Cutting-off equipment for repairing air leakage of heating and ventilation pipeline

Abstract

The utility model discloses cut-off equipment for repairing air leakage of a heating and ventilation pipeline, and relates to the technical field of cut-off equipment, the cut-off equipment comprises a U-shaped seat, a carrying rod is arranged on the U-shaped seat in a penetrating manner, the combination part of the U-shaped seat and the carrying rod is rotatably connected through a bearing, carrying discs are fixed at the two ends of the carrying rod, and a carrying column A, a carrying column B and a carrying column C are arranged on the carrying discs in a penetrating manner; the joint of the carrying disc and the carrying column A, the joint of the carrying disc and the carrying column B and the joint of the carrying disc and the carrying column C are rotationally connected through bearings, and clamping grooves are formed in the axis of the carrying column A, the axis of the carrying column B and the axis of the carrying column C. The positions of the carrying column A, the carrying column B and the carrying column C can be sequentially switched by rotating the carrying disc, so that the carrying column A, the carrying column B and the carrying column C are connected with the telescopic connecting piece in turn, the telescopic connecting piece is driven by the power assembly to rotate, the saw blade, the soft bristles and the blade are dragged by the telescopic connecting piece to sequentially rotate, and treatment of cutting off, cleaning and guide groove forming of the heating and ventilation pipeline is completed in order.

Description

Technical Field

[0001] The utility model relates to the technical field of cut-off equipment, in particular to a cut-off equipment for repairing air leakage in a heating and ventilation pipeline. Background Art

[0002] HVAC is an integral part of a building. It includes three aspects: heating, ventilation, and air conditioning. HVAC pipes are important materials required to connect HVAC to the interior. Through heating, HVAC pipes supply heat to the interior to keep the indoor temperature required for living or working.

[0003] Steam pipes are an important part of HVAC pipes. When in use, steam pipes need to maintain effective sealing. Once a leak occurs, the heat medium inside the HVAC pipe will overflow, which will not only affect the heating effect, but also easily cause damage to the room. The HVAC pipe leak repair generally adopts the lining method, that is, a chemical building material pipe with a smaller or equal diameter than the original pipe is inserted into the original pipe, and grouting is performed in the annular gap between the new and old pipes to consolidate it, forming a pipe-in-pipe structure to help the HVAC pipe seal again. When the lining method is used to repair the HVAC pipe, the HVAC pipe leak needs to be cut off first. The common treatment method is to directly use an electric saw to cut on both sides of the HVAC pipe leak to achieve the purpose of cutting off the HVAC pipe. The cut pipe needs to use a cleaning device to clean the impurities attached to the inner wall of the pipe. After that, a guide groove needs to be opened to facilitate the use of the lining method to repair the HVAC pipe. In this process, workers need to replace the corresponding equipment many times, resulting in more equipment to be carried. Each type of equipment uses a separate motor, resulting in a high cost of purchasing tools. Utility Model Content

[0004] The purpose of the present application is to provide a cutting device for repairing HVAC pipe leaks, so as to solve the problem proposed in the above background technology that an electric saw is used to cut on both sides of the HVAC pipe leak to achieve the purpose of cutting the HVAC pipe. After the pipe is cut, a cleaning device is needed to clean the impurities attached to the inner wall of the pipe. After that, a guide groove needs to be opened to facilitate the lining method to repair the HVAC pipe. During this process, workers need to replace the corresponding equipment many times, resulting in a large number of equipment to be carried. Each type of equipment uses a separate motor, resulting in a high cost of purchasing tools.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a cut-off device for repairing air leakage in a heating and ventilation pipeline, comprising a U-shaped seat, a carrying rod is provided through the U-shaped seat, and the junction of the U-shaped seat and the carrying rod is rotatably connected through a bearing, a carrying plate is fixed at both ends of the carrying rod, a carrying column A, a carrying column B, and a carrying column C are provided through the carrying plate, and the junction of the carrying plate and the carrying column A, the junction of the carrying plate and the carrying column B, and the junction of the carrying plate and the carrying column C are all rotatably connected through bearings, and the axes of the carrying columns A, B, and C are all provided with There is a card slot, and the supporting columns A, B and C are distributed in a circular array with the supporting rod as the axis. A saw blade is fixedly installed on the outside of the supporting column A, a plurality of soft bristles are fixedly installed on the outside of the supporting column B, and a plurality of blades distributed in a circular array are fixedly installed on the outside of the supporting column C. A power assembly is arranged on the U-shaped seat, and two telescopic connecting parts are arranged on the power assembly. The two telescopic connecting parts are respectively arranged on both sides of the U-shaped seat, and the telescopic connecting parts are slidably matched with the inner wall of the card slot, and the power assembly is used to drive the two telescopic connecting parts to rotate.

[0006] Furthermore, a handle is fixedly mounted on the top of the U-shaped seat.

[0007] Furthermore, the power assembly includes a transmission rod, a driving motor, a driving sprocket, a driven sprocket and a transmission chain, the transmission rod is arranged on the U-shaped seat, and the junction of the transmission rod and the U-shaped seat is rotatably connected by a bearing, the driving motor is fixedly installed on the U-shaped seat, the driven sprocket is fixedly sleeved on the outside of the transmission rod, the driving sprocket is rotatably installed between the relative inner walls of the U-shaped seat through a bearing, and the driving sprocket is driven by the driving motor, and the transmission chain is sleeved on the outside of the driving sprocket and the driven sprocket.

[0008] Furthermore, the telescopic connecting piece includes an adjusting block and a fixed rod, the adjusting block is sleeved on the outside of the fixed rod, and an adjusting cavity for sliding the fixed rod is opened on the adjusting block, a spring is fixed inside the adjusting cavity, and the other end of the spring is fixedly mounted on the fixed rod, the adjusting block slides with the inner wall of the slot, and the cross-sections of the slot, the adjusting block and the fixed rod are all rectangular structures.

[0009] Furthermore, an auxiliary block is fixed on the top of the adjusting block.

[0010] Furthermore, limiting columns are fixed on the upper and lower sides of the fixing rod, and limiting sliding grooves for the limiting columns to slide are provided inside the adjusting cavity.

[0011] In summary, the technical effects and advantages of the utility model are:

[0012] In the utility model, the positions of the three columns A, B and C can be changed in sequence by rotating the carrier plate, so that the three columns are connected to the telescopic connecting piece in turn. The telescopic connecting piece is driven to rotate by the power component, so that the telescopic connecting piece pulls the saw blade, the soft brush and the blade to rotate in sequence, and the HVAC pipe is cut off, cleaned and the guide groove is opened in an orderly manner. When the HVAC pipe is repaired by the lining method, there is no need to carry too much equipment, and only one set of power components is needed to provide power to meet various processing requirements of the HVAC pipe.

[0013] In the utility model, the auxiliary block is used to push the adjustment block to slide on the outside of the fixed rod, and the combined length of the adjustment block and the fixed rod is adjusted, so that after the positions of the support column A, the support column B, and the support column C are converted, the adjustment block can be inserted into the corresponding slot with the help of the elastic force of the spring, pulling one of the saw blade, the soft brush, and the blade to rotate, so as to achieve the corresponding processing effect on the HVAC pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] 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 or the prior art description are briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a cut-off device for repairing HVAC pipeline leakage in an embodiment of the present application;

[0016] Figure 2 This is a diagram showing the connection relationship between the U-shaped seat, the carrying rod and the carrying plate in the embodiment of the present application;

[0017] Figure 3 A diagram showing the connection relationship between the U-shaped seat and the power assembly in the embodiment of the present application;

[0018] Figure 4 This is a connection diagram of the transmission rod, the support column A and the telescopic connector in the embodiment of the present application;

[0019] Figure 5 It is a schematic diagram of the structure of the telescopic connector in the embodiment of the present application.

[0020] In the figure: 1. U-shaped seat; 2. carrying rod; 3. carrying plate; 4. carrying column A; 5. carrying column B; 6. carrying column C; 7. slot; 8. saw blade; 9. soft bristles; 10. blade; 11. transmission rod; 12. driving motor; 13. driving sprocket; 14. driven sprocket; 15. transmission chain; 16. adjusting block; 17. fixing rod; 18. adjusting chamber; 19. spring; 20. limiting column; 21. limiting slide groove; 22. auxiliary block; 23. handle. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Example: Reference Figure 1-5 The cut-off device for repairing air leakage in a heating and ventilation pipe shown in the figure comprises a U-shaped seat 1, a handle 23 is fixedly installed on the top of the U-shaped seat 1, and the handle 23 is convenient for workers to hold the device, so that the device is easy and labor-saving to use, a carrying rod 2 is arranged through the U-shaped seat 1, and the joint of the U-shaped seat 1 and the carrying rod 2 is rotatably connected through a bearing, and a carrying plate 3 is fixed at both ends of the carrying rod 2, and a carrying column A4, a carrying column B5, and a carrying column C6 are arranged through the carrying plate 3, and the joints of the carrying plate 3 and the carrying column A4, the joints of the carrying plate 3 and the carrying column B5, and the joints of the carrying plate 3 and the carrying column C6 are all rotatably connected through bearings, and the carrying plate 3 is fixed at both ends of the carrying column 2. A slot 7 is provided at the axis of the column A4, the column B5 and the column C6, and the columns A4, B5 and C6 are arranged in a circular array with the carrying rod 2 as the axis. A saw blade 8 is fixedly installed on the outside of the column A4, a plurality of soft bristles 9 are fixedly installed on the outside of the column B5, and a plurality of blades 10 distributed in a circular array are fixedly installed on the outside of the column C6. A power assembly is provided on the U-shaped seat 1, and two telescopic connecting parts are provided on the power assembly. The two telescopic connecting parts are respectively arranged on both sides of the U-shaped seat 1, and the telescopic connecting parts are slidably matched with the inner wall of the slot 7, and the power assembly is used to drive the two telescopic connecting parts to rotate;

[0023] The rotating carrier 3 can drive the positions of the carrier columns A4, B5 and C6 to change in sequence, so that the three are connected to the telescopic connecting piece in turn. The telescopic connecting piece is driven to rotate by the power component, so that the telescopic connecting piece pulls the saw blade 8, the soft brush 9 and the blade 10 to rotate in sequence, thereby completing the processing of cutting off, cleaning and opening the guide groove of the HVAC pipe in an orderly manner.

[0024] The power assembly includes a transmission rod 11, a driving motor 12, a driving sprocket 13, a driven sprocket 14 and a transmission chain 15. The transmission rod 11 is arranged on the U-shaped seat 1, and the joint of the transmission rod 11 and the U-shaped seat 1 is rotatably connected through a bearing. The driving motor 12 is fixedly installed on the U-shaped seat 1, and the driving sprocket 13 is rotatably installed between the opposite inner walls of the U-shaped seat 1 through a bearing, and the driving sprocket 13 is driven by the driving motor 12. The driven sprocket 14 is fixedly sleeved on the outside of the transmission rod 11, and the transmission chain 15 is sleeved on the outside of the driving sprocket 13 and the driven sprocket 14;

[0025] The driving motor 12 is used to drive the driving sprocket 13 to rotate. The driving sprocket 13 pulls the driven sprocket 14 to rotate by means of the transmission chain 15, so that the driven sprocket 14 pulls the telescopic connector to rotate by means of the transmission rod 11.

[0026] The telescopic connector includes an adjusting block 16 and a fixing rod 17, the fixing rod 17 is fixedly mounted on the transmission rod 11, the adjusting block 16 is slidably matched with the inner wall of the card slot 7, the cross sections of the card slot 7, the adjusting block 16 and the fixing rod 17 are all rectangular structures, the adjusting block 16 is sleeved on the outside of the fixing rod 17, and an adjusting cavity 18 for sliding the fixing rod 17 is provided on the adjusting block 16, a spring 19 is fixed inside the adjusting cavity 18, the other end of the spring 19 is fixedly mounted on the fixing rod 17, limiting columns 20 are fixed on the upper and lower sides of the fixing rod 17, a limiting slide groove 21 is provided inside the adjusting cavity 18 for sliding the limiting column 20, the limiting column 20 and the limiting slide groove 21 are used in combination to prevent the adjusting block 16 from being completely separated from the fixing rod 17, and to ensure that the spring 19 is always in a compressed state, an auxiliary block 22 is fixed on the top of the adjusting block 16, and the use of the auxiliary block 22 can provide a fulcrum for the movement of the adjusting block 16;

[0027] With the help of the auxiliary block 22, the adjusting block 16 is pushed to slide outside the fixed rod 17, and the combined length of the adjusting block 16 and the fixed rod 17 is adjusted, so that after the positions of the supporting columns A4, B5 and C6 are converted, the adjusting block 16 can be inserted into the corresponding card slot 7 with the help of the elastic force of the spring 19, pulling one of the saw blade 8, soft brush 9 and blade 10 to rotate, so as to achieve the corresponding processing effect on the HVAC pipe.

[0028] Working principle of this utility model:

[0029] When in use, locate the air leakage position of the HVAC pipe in advance and mark it. The worker takes out the device, first pulls the two auxiliary blocks 22 closer to each other, so that the telescopic connection is in a retracted state, rotates the carrier plate 3, adjusts the carrier column A4 and the telescopic connection to be on the same horizontal axis, loosens the auxiliary block 22, and allows the adjustment block 16 to be inserted into the slot 7 provided on the carrier column A4 with the elastic force of the spring 19. At this time, the adjustment block 16 is connected to the carrier column A4, and the drive motor 12 is turned on, so that the drive motor 12 drives the active sprocket 13 to rotate, and the active sprocket 13 drives the driven sprocket 14 to rotate with the help of the transmission chain 15. The driven sprocket 14 drives the saw blade 8 on the carrier column A4 to rotate with the help of the transmission rod 11 and the telescopic connection, so that the two saw blades 8 cut the two sides of the air leakage position of the HVAC pipe. After the leaking part of the leaking position is cut off, the drive motor 12 is powered off.

[0030] Pull the two auxiliary blocks 22 closer to each other again to separate the adjustment block 16 from the carrier column A4, rotate the carrier plate 3, turn the carrier column B5 to the same horizontal axis as the telescopic connector, loosen the auxiliary block 22 to complete the connection between the telescopic connector and the carrier column B5, insert the soft bristles 9 into the HVAC pipe, activate the power component to pull the soft bristles 9 to rotate, clean the inside of the HVAC pipe, so that the impurities attached to the inner wall of the HVAC pipe can be peeled off, after cleaning, turn off the power to the drive motor 12, remove the soft bristles 9 from the HVAC pipe, and use a rag to wipe the impurities remaining in the HVAC pipe clean;

[0031] Pull the two auxiliary blocks 22 together again to separate the adjustment block 16 from the carrier column A4, rotate the carrier plate 3, turn the carrier column C6 to the same horizontal axis as the telescopic connector, loosen the auxiliary block 22 to complete the connection between the telescopic connector and the carrier column C6, insert the blade 10 into the HVAC pipe port, activate the power component to pull the blade 10 to rotate, first open the guide groove for the left HVAC pipe port, and then open the guide groove for the right HVAC pipe port. After the two sections of HVAC pipes are processed, cut off the power to the drive motor 12, remove the equipment, and then use the lining method to repair the HVAC pipe.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cut-off device for repairing air leakage in a heating and ventilation pipeline, comprising a U-shaped seat (1), characterized in that: The U-shaped seat (1) is provided with a carrying rod (2) extending therethrough, and the joint of the U-shaped seat (1) and the carrying rod (2) is rotatably connected via a bearing, a carrying plate (3) is fixed at both ends of the carrying rod (2), a carrying column A (4), a carrying column B (5), and a carrying column C (6) are provided on the carrying plate (3), and the joint of the carrying plate (3) and the carrying column A (4), the joint of the carrying plate (3) and the carrying column B (5), and the joint of the carrying plate (3) and the carrying column C (6) are all rotatably connected via a bearing, a slot (7) is provided at the axis of the carrying column A (4), the carrying column B (5), and the carrying column C (6), and the carrying column A (4) and the carrying column B (5) are all rotatably connected. , support columns B (5), and support columns C (6) are arranged in a circular array with the support rod (2) as the axis. A saw blade (8) is fixedly installed on the outside of the support column A (4), a plurality of soft bristles (9) are fixedly installed on the outside of the support column B (5), and a plurality of blades (10) distributed in a circular array are fixedly installed on the outside of the support column C (6). A power assembly is arranged on the U-shaped seat (1), and two telescopic connecting parts are arranged on the power assembly. The two telescopic connecting parts are respectively arranged on two sides of the U-shaped seat (1), and the telescopic connecting parts are slidably matched with the inner wall of the slot (7). The power assembly is used to drive the two telescopic connecting parts to rotate.

2. A cutting device for repairing air leakage in a HVAC pipeline according to claim 1, characterized in that: A handle (23) is fixedly mounted on the top of the U-shaped seat (1).

3. The cut-off device for repairing air leakage in a HVAC pipeline according to claim 1 is characterized in that: The power assembly comprises a transmission rod (11), a driving motor (12), a driving sprocket (13), a driven sprocket (14) and a transmission chain (15); the transmission rod (11) is arranged to penetrate the U-shaped seat (1), and the junction of the transmission rod (11) and the U-shaped seat (1) is rotatably connected via a bearing; the driving motor (12) is fixedly mounted on the U-shaped seat (1), the driven sprocket (14) is fixedly sleeved on the outside of the transmission rod (11), the driving sprocket (13) is rotatably mounted between opposite inner walls of the U-shaped seat (1) via a bearing, and the driving sprocket (13) is driven by the driving motor (12); and the transmission chain (15) is sleeved on the outside of the driving sprocket (13) and the driven sprocket (14).

4. The cut-off device for repairing air leakage in a HVAC pipeline according to claim 1 is characterized in that: The telescopic connecting member comprises an adjusting block (16) and a fixing rod (17); the adjusting block (16) is sleeved on the outside of the fixing rod (17); an adjusting cavity (18) is provided on the adjusting block (16) for the fixing rod (17) to slide; a spring (19) is fixed inside the adjusting cavity (18); the other end of the spring (19) is fixedly mounted on the fixing rod (17); the adjusting block (16) is slidably matched with the inner wall of the card slot (7); and the cross sections of the card slot (7), the adjusting block (16) and the fixing rod (17) are all rectangular structures.

5. The cut-off device for repairing air leakage in a HVAC pipeline according to claim 4 is characterized in that: An auxiliary block (22) is fixed on the top of the adjustment block (16).

6. The cut-off device for repairing air leakage in a HVAC pipeline according to claim 4, characterized in that: Limiting columns (20) are fixed to the upper and lower sides of the fixing rod (17), and a limiting sliding groove (21) for the limiting column (20) to slide is provided inside the adjusting cavity (18).

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