Auxiliary maintenance equipment for urban heat supply pipeline

Abstract

The invention relates to the technical field of heat supply pipeline maintenance, in particular to auxiliary maintenance equipment for urban heat supply pipelines, which comprises a fixing shaft, a fixing rod is arranged on the fixing shaft, a polishing part is slidably arranged on the fixing rod, and an extrusion locking part is arranged at the front end of the fixing shaft and is used for fixing the equipment on the inner wall of the pipeline. Through the integrated components such as the handle, the fixing rod, the adjusting threaded shaft, the fixing block, the fixing shaft and the grinding block, efficient grinding and rust removing treatment on the outer side and the inner wall of the connecting end of the large-diameter heat supply pipeline is achieved. The design of the equipment allows an operator to easily control the contact between the polishing block and the pipeline, and the polishing machine does not need to be held by hand, so that the labor intensity is reduced, and the maintenance efficiency is improved. And meanwhile, through the structure of the bidirectional threaded shaft, the connecting block, the rotating rod and the supporting rod, the equipment can be stably positioned in the heat supply pipeline, and firm support is provided for grinding operation. The innovation points act together.

Description

Technical Field

[0001] The invention relates to the technical field of heating pipeline maintenance, and in particular to auxiliary maintenance equipment for urban heating pipelines. Background Art

[0002] In the urban heating system, heating pipes play a vital role in transporting heat energy from the heat source to various heat users. In order to ensure the effective operation of the heating system, the heating pipes must be regularly inspected and maintained. After the heating system is shut down, all pipes need to be carefully inspected, and pipes with severe corrosion must be replaced.

[0003] When replacing a severely corroded heating pipe, the inner and outer walls of the pipe will rust after long-term use, which will affect the reliability of the welding connection between the new and old pipes. Therefore, before welding the new heating pipe, the inner and outer walls of the old heating pipe connection must be thoroughly polished and rust-free.

[0004] At present, the grinding and rust removal method is usually handled by operators using handheld grinders. Since it is necessary to grind and remove rust around the outer and inner walls of the heating pipe, it is not convenient to operate the handheld grinder to grind and remove rust from different angles on the outer and inner walls of the heating pipe with a larger diameter, which makes the maintenance of the heating pipe complicated and difficult.

[0005] In addition, existing grinding and rust removal equipment often lacks adaptability to pipes of different diameters, resulting in the need for frequent equipment adjustment or manual grinding in actual operation, which not only reduces work efficiency but also increases the labor intensity of operators. Therefore, in order to improve the efficiency and convenience of heating pipeline maintenance, it is necessary to develop auxiliary maintenance equipment for urban heating pipelines. Such equipment should be able to adapt to heating pipelines of different diameters and be able to conveniently grind and rust-remove pipelines from different angles to improve the efficiency and quality of maintenance. Summary of the invention

[0006] In view of the problems existing in the above-mentioned auxiliary maintenance equipment of the existing urban heating pipelines, the present invention is proposed.

[0007] Therefore, the purpose of the present invention is to provide an auxiliary maintenance equipment for urban heating pipes, which aims to solve the problem that the existing handheld grinders are not convenient to operate when grinding and rust-removing the outer and inner walls of heating pipes with larger diameters from different angles, thereby making the maintenance of heating pipes inconvenient.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: an auxiliary maintenance equipment for urban heating pipelines, comprising a fixed shaft, a fixed rod is arranged on the fixed shaft, a grinding piece is slidably arranged on the fixed rod, and an extrusion locking piece is arranged at the front end of the fixed shaft for fixing the equipment on the inner wall of the pipeline.

[0009] As a preferred solution of the auxiliary maintenance equipment of the urban heating pipeline described in the present invention, a fixed block is provided at one end of the fixed rod, the fixed block slides in the fixed rod by adjusting the threaded shaft, and the grinding piece is installed on the fixed block.

[0010] As a preferred solution of the auxiliary maintenance equipment of the urban heating pipeline described in the present invention, the polishing part includes a slider slidably connected to the inner side of the fixed block, a motor is arranged in the slider, a positioning shaft is fixedly connected to the end of the main shaft of the motor, and a polishing block is slidably connected to the outer side of the positioning shaft.

[0011] As a preferred solution of the auxiliary maintenance equipment for the urban heating pipeline described in the present invention, one end of the grinding block is slidably connected to a limiting shaft, and the limiting shaft is fixedly connected to the positioning shaft, and the outer left end of the positioning shaft is spirally connected to a threaded sleeve that is in close contact with the grinding block.

[0012] As a preferred solution of the auxiliary maintenance equipment of the urban heating pipeline described in the present invention, springs are fixedly connected to both upper and lower ends of the inner side of the fixed block, and the other end of the spring is fixedly connected to a slide plate slidably connected to the fixed block, and the top slide plate is in contact with the slider.

[0013] As a preferred solution of the auxiliary maintenance equipment for the urban heating pipeline of the present invention, a bearing is fixedly connected inside the fixing rod, and is fixedly connected to the fixing shaft through the bearing, and a handle is arranged at the other end.

[0014] As a preferred solution of the auxiliary maintenance equipment of the urban heating pipeline described in the present invention, the extrusion locking member includes an operating handle rotatably connected to one end of the fixed shaft, and the other end of the operating handle is fixedly connected to a bidirectional threaded shaft with opposite thread directions on both sides.

[0015] As a preferred solution of the auxiliary maintenance equipment of the urban heating pipeline described in the present invention, the bidirectional threaded shaft is rotatably connected to the fixed shaft, the outer side of the bidirectional threaded shaft is spirally connected to a connecting block slidably connected to the fixed shaft, and an expansion part is provided on each of the opposite sides of the two connecting blocks.

[0016] As a preferred solution of the auxiliary maintenance equipment of the urban heating pipeline described in the present invention, the unfolding part includes a rotating rod rotatably connected to the outside of the connecting block through a rotating shaft, and the other end of the rotating rod is rotatably connected to a support rod through a rotating shaft, and each unfolding part is trapezoidal.

[0017] As a preferred solution of the auxiliary maintenance equipment for the urban heating pipeline of the present invention, a gasket is fixedly connected to the outer side of the support rod, and the gasket is made of rubber.

[0018] Beneficial effects of the present invention: The auxiliary maintenance equipment for urban heating pipelines of the present application realizes efficient grinding and rust removal of the outer side and inner wall of the connecting end of large-diameter heating pipelines through integrated components such as handles, fixed rods, adjustable threaded shafts, fixed blocks, fixed shafts and grinding blocks. The design of the equipment allows the operator to easily control the contact between the grinding block and the pipeline without the need for a handheld grinder, thereby reducing labor intensity and improving maintenance efficiency. At the same time, through the structure of the bidirectional threaded shaft, connecting block, rotating rod and support rod, the equipment can be stably positioned in the heating pipeline, providing solid support for the grinding operation. These innovative points work together to make the maintenance of heating pipelines more convenient and quick, improve the quality of maintenance, and ensure the stable operation of the urban heating system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the auxiliary maintenance equipment for urban heating pipelines of the present invention.

[0021] Figure 2 It is a cross-sectional schematic diagram of the use of the auxiliary maintenance equipment of the urban heating pipeline of the present invention.

[0022] Figure 3 The present invention is a schematic cross-sectional view of a fixing block of an auxiliary maintenance device for a city heating pipeline.

[0023] In the figure:

[0024] 1. Fixed shaft; 2. Fixed rod; 3. Bearing; 4. Fixed block; 5. Adjustable threaded shaft; 6. Slider; 7. Motor; 8. Positioning shaft; 9. Grinding block; 10. Limiting shaft; 11. Threaded sleeve; 12. Slide plate; 13. Spring; 14. Handle; 15. Operating handle; 16. Bidirectional threaded shaft; 17. Connecting block; 18. Rotating rod; 19. Support rod; 20. Gasket. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0029] Example 1

[0030] Reference Figure 1-Figure 3 , which is the first embodiment of the present invention, provides an auxiliary maintenance equipment for urban heating pipelines, including a fixed shaft 1, a fixed rod 2 is arranged on the fixed shaft 1, a grinding piece is slidably arranged on the fixed rod 2, and an extrusion locking piece is arranged at the front end of the fixed shaft 1 for fixing the equipment on the inner wall of the pipeline.

[0031] An auxiliary equipment designed for urban heating pipeline maintenance, aimed at simplifying the grinding and rust removal process of the outer and inner walls of the connection ends of large-diameter heating pipelines. The equipment achieves efficient maintenance of heating pipelines through a series of carefully designed components.

[0032] First, the equipment includes a handle 14, a fixed rod 2, an adjusting threaded shaft 5, a fixed block 4, a fixed shaft 1 and a grinding block 9. When inspecting the heating pipe, the operator rotates the adjusting threaded shaft 5 and screws it with the fixed rod 2, so that the fixed block 4 can drive the grinding block 9 of the grinding mechanism to contact the inner wall or outer side of the heating pipe. This step ensures the precise positioning of the grinding block 9, laying the foundation for subsequent grinding work.

[0033] Next, the external power supply of the device is turned on, and the operator controls the fixed rod 2 to rotate back and forth around the fixed axis 1 through the handle 14. This action further controls the grinding block 9 of the grinding mechanism to reciprocate around the outer side or inner wall of the connecting end of the heating pipe to achieve rust removal. This design allows the operator to grind the heating pipe from different angles without holding the grinder, greatly reducing the difficulty of operation and labor intensity, and improving the convenience and efficiency of maintenance.

[0034] In addition, the device is also provided with a bidirectional threaded shaft 16, a connecting block 17, a rotating rod 18 and a support rod 19. Before inspecting the heating pipe, first insert the fixed shaft 1 into the inner side of the connecting end of the heating pipe, and then rotate the bidirectional threaded shaft 16 by operating the handle 15 to make it spirally connected with the connecting block 17. This operation causes the connecting block 17 to push the rotating rod 18 to rotate, and then the support rod 19 drives the gasket 20 to closely contact the inner wall of the heating pipe, so as to realize the positioning of the device and the heating pipe. This positioning method is not only stable, but also convenient for subsequent grinding operations, making the entire inspection process smoother.

[0035] In summary, this equipment, through its innovative design, not only improves the efficiency of heating pipeline maintenance, but also reduces the workload of operators, making maintenance work safer and faster. Through this auxiliary maintenance equipment, the maintenance quality of heating pipelines can be effectively improved to ensure the stable operation of urban heating systems.

[0036] Example 2

[0037] Reference Figure 1-Figure 3 , which is the second embodiment of the present invention, and this embodiment is different from the first embodiment in that: the extrusion locking member includes an operating handle 15 rotatably connected to one end of the fixed shaft 1, and the other end of the operating handle 15 is fixedly connected to a bidirectional threaded shaft 16 with opposite thread directions on both sides. The bidirectional threaded shaft 16 is rotatably connected to the fixed shaft 1, and a connecting block 17 slidably connected to the fixed shaft 1 is spirally connected to the outer side of the bidirectional threaded shaft 16, and an expansion portion is provided on each of the opposite sides of the two connecting blocks 17. The expansion portion includes a rotating rod 18 rotatably connected to the outer side of the connecting block 17 through a rotating shaft, and the other end of the rotating rod 18 is rotatably connected to a support rod 19 through a rotating shaft, and each expansion portion is trapezoidal. A gasket 20 is fixedly connected to the outer side of the support rod 19, and the gasket 20 is made of rubber.

[0038] The squeeze lock is one of the key components of the heating pipe maintenance auxiliary device of the present invention. It is designed to fix the device on the inner wall of the heating pipe to provide stable support for subsequent grinding and rust removal operations. The following is a detailed explanation of the squeeze lock:

[0039] It includes a fixed shaft 1, one end of which is rotatably connected to an operating handle 15, and the user can control the rotation of the bidirectional threaded shaft 16 at the other end of the fixed shaft 1 by holding the operating handle 15. This bidirectional threaded shaft 16 is uniquely designed, and the threads on both sides are in opposite directions, so that the threaded shaft can be moved by rotating the operating handle 15 to achieve locking or releasing the inner wall of the heating pipe. The fixed shaft 1 and the bidirectional threaded shaft 16 are rotatably connected, which ensures that the bidirectional threaded shaft 16 can rotate freely on the fixed shaft 1 without moving axially. The outer side of the bidirectional threaded shaft 16 is spirally connected to a connecting block 17 that is slidably connected to the fixed shaft 1. These connecting blocks 17 can slide on the fixed shaft 1 so as to adjust the position when the threaded shaft rotates. In order to increase the contact area with the inner wall of the heating pipe and improve the fixing stability, an expansion portion is provided on each of the opposite sides of the two connecting blocks 17. Each unfolding part includes a rotating rod 18 rotatably connected to the outside of the connecting block 17 through a rotating shaft, and the other end of the rotating rod 18 is rotatably connected to a support rod 19 through a rotating shaft. The support rod 19 pushes outward when the device is fixed, so that the gasket 20 is in close contact with the inner wall of the heating pipe. Each unfolding part is trapezoidal, and this shape design helps to more stably support the inner wall of the heating pipe under the push of the support rod 19, ensuring the stability and reliability of the device during grinding and rust removal operations.

[0040] The outer side of the support rod 19 is fixedly connected with a gasket 20, and the gasket 20 is made of rubber. The rubber gasket 20 can provide good elasticity and sealing, ensure close contact between the device and the inner wall of the heating pipe, and reduce damage to the inner wall of the pipe.

[0041] Through the above design, the extrusion locking piece can effectively fix the auxiliary maintenance equipment on the inner wall of the heating pipe, providing stable support for subsequent grinding and rust removal operations. When the device needs to be fixed, the operator turns the operating handle 15 to rotate the bidirectional threaded shaft 16, pushes the connecting block 17 to slide along the fixed axis 1, and the support rod 19 is unfolded, and the rubber gasket 20 is in close contact with the inner wall of the heating pipe to achieve fixation. When the device needs to be released, the operating handle 15 is turned in the opposite direction, the support rod 19 is retracted, and the device can be removed from the inner wall of the heating pipe. This design not only improves the maintenance efficiency, but also ensures the convenience and safety of operation.

[0042] The remaining structures are the same as those of Example 1.

[0043] Example 3

[0044] Reference Figure 1-Figure 3, which is the third embodiment of the present invention, and this embodiment is different from the second embodiment in that: a fixed block 4 is provided at one end of the fixed rod 2, and the fixed block 4 slides in the fixed rod 2 by adjusting the threaded shaft 5, and the grinding piece is installed on the fixed block 4. The grinding piece includes a slider 6 slidably connected to the inner side of the fixed block 4, a motor 7 is provided in the slider 6, a positioning shaft 8 is fixedly connected to the end of the main shaft of the motor 7, and a grinding block 9 is slidably connected to the outer side of the positioning shaft 8. A limit shaft 10 is slidably connected to one end of the grinding block 9, and the limit shaft 10 is fixedly connected to the positioning shaft 8, and a threaded sleeve 11 in close contact with the grinding block 9 is spirally connected to the left end of the outer side of the positioning shaft 8. Springs 13 are fixedly connected to the upper and lower ends of the inner side of the fixed block 4, and the other end of the spring 13 is fixedly connected to a slide plate 12 slidably connected to the fixed block 4, and the slide plate 12 at the top is in contact with the slider 6.

[0045] This paragraph describes the grinding mechanism in the auxiliary device for heating pipe maintenance, which consists of a fixed rod 2, a fixed block 4, a slider 6, a motor 7, a positioning shaft 8, a grinding block 9, a limit shaft 10, a threaded sleeve 11, a spring 13 and a slide plate 12, etc., and is used to achieve the function of grinding and derusting the inner wall or outer side of the heating pipe. The following is a detailed explanation of this description:

[0046] In the heating pipeline maintenance auxiliary device of the present invention, one end of the fixed rod 2 is equipped with a fixed block 4, and the fixed block 4 can slide in the fixed rod 2 by adjusting the threaded shaft 5, so as to adjust the contact position between the grinding block 9 and the inner wall or the outer side of the heating pipeline to achieve precise grinding. A grinding piece is installed on the fixed block 4, which includes a slider 6, and a motor 7 is installed inside the slider 6. The motor 7 serves as the power source of the grinding mechanism and is responsible for driving the grinding block 9 to perform a rotational grinding operation. A positioning shaft 8 is connected to the end of the main shaft of the motor 7, and the function of the positioning shaft 8 is to transmit the rotational motion of the motor 7 to the grinding block 9. The grinding block 9 is connected to the limit shaft 10 by a sliding connection on the outside of the positioning shaft 8. The limit shaft 10 is fixedly connected to the positioning shaft 8 to ensure that the moving range of the grinding block 9 is limited to improve the accuracy of the grinding operation.

[0047] The left end of the outer side of the positioning shaft 8 is in close contact with the grinding block 9 through the threaded sleeve 11. The threaded sleeve 11 rotates under the drive of the motor 7, pushing the grinding block 9 to move along the positioning shaft 8, thereby realizing the feeding and pressure adjustment of the grinding block 9. In order to ensure the close contact between the grinding block 9 and the inner wall or outer side of the heating pipe and improve the grinding effect, springs 13 are fixedly connected to the upper and lower ends of the inner side of the fixed block 4. The other end of the spring 13 is connected to the slide plate 12 that is slidably connected to the fixed block 4, and the top of the slide plate 12 is in contact with the slider 6. When the motor 7 drives the slider 6 and the grinding block 9 to move, the slide plate 12 will slide up and down along the fixed block 4, and the spring 13 will be compressed or stretched accordingly, thereby adjusting the pressure of the grinding block 9 on the heating pipe to ensure the uniformity and efficiency of the grinding effect. This design enables the grinding mechanism to be flexibly adjusted to meet the grinding needs of different parts, while ensuring the convenience of operation and the quality of maintenance.

[0048] Through such a design, the grinding mechanism can realize efficient grinding and rust removal of the inner wall or outer side of the heating pipe, while ensuring the flexibility of operation and the uniformity of the grinding effect. When the worn grinding block 9 needs to be replaced, the grinding block 9 can be conveniently removed from the positioning shaft 8 and the limiting shaft 10 for replacement by rotating the threaded sleeve 11 to disengage the spiral connection with the limiting shaft 10. This design improves the maintainability and service life of the device, while also ensuring the efficiency and convenience of maintenance work.

[0049] The remaining structure is the same as that of Example 2.

[0050] Example 4

[0051] Reference Figure 2 , which is the fourth embodiment of the present invention. This embodiment is different from the third embodiment in that a bearing 3 is fixedly connected inside the fixed rod 2 and is fixedly connected to the fixed shaft 1 through the bearing 3, and a handle 14 is provided at the other end.

[0052] The fixed rod 2 is fixedly connected with bearings 3 inside. The function of these bearings 3 is to reduce friction, ensure smooth rotation between the fixed rod 2 and the fixed shaft 1, and withstand the force and vibration generated by the grinding operation, thereby improving the stability and durability of the entire device. One end of the fixed rod 2 is fixedly connected to the fixed shaft 1 through the bearing 3. This design allows the fixed rod 2 to rotate around the fixed shaft 1, providing flexibility for operation. The fixed shaft 1 is a key part of the device connected to the heating pipe. It is in close contact with the inner wall of the heating pipe by squeezing the locking piece to ensure the stability of the device during use. The other end of the fixed rod 2 is provided with a handle 14, which is designed to facilitate the operator to hold and control the entire device. The operator can drive the motor 7 on the fixed rod 2 by turning the handle 14, thereby controlling the rotation and movement of the grinding block 9 to achieve the grinding and rust removal operation on the inner wall or outer side of the heating pipe. Similarly, at the other end of the fixed rod 2, a grinding piece is provided, which includes components such as a slider 6, a motor 7, a positioning shaft 8, and a grinding block 9. By adjusting the threaded sleeve 11 or adjusting the threaded shaft 5, the operator can adjust the contact position between the grinding block 9 and the inner wall or outer side of the heating pipe to adapt to heating pipes of different diameters and lengths. This design allows the grinding mechanism to slide on the fixed rod 2 to achieve precise adjustment of the position of the grinding piece, ensuring the efficiency and flexibility of the grinding operation.

[0053] To sum up, the arrangement of the bearing 3 and the handle 14 fixedly connected in the fixed rod 2, as well as the configuration of the grinding parts, together constitute an efficient, flexible and easy-to-operate heating pipe maintenance auxiliary device, which makes the grinding operation more precise and efficient, while reducing the labor intensity of the operator.

[0054] The remaining structure is the same as that of Example 3.

[0055] Combined with Figures 1 to 3As shown, in the process of using the device to inspect and repair a heating pipe with a larger diameter, in order to ensure the reliability of the welding connection between the new and old heating pipes, when grinding and removing rust on the outer side and inner wall of the connection end of the old heating pipe, first insert the fixed shaft 1 into the inner side of the connection end of the old heating pipe, and then rotate the bidirectional threaded shaft 16 with opposite thread directions on both sides of the handle 15 to be spirally connected with the connecting block 17, so that the connecting block 17 further pushes the rotating rod 18 to rotate, and then the rotating rod 18 will push the support rod 19 to drive the rubber gasket 20 to be in close contact with the inner wall of the old heating pipe during the rotation process, so as to achieve the positioning of the device and the heating pipe together. After completing the above operations, the rotating adjustment threaded shaft 5 is spirally connected with the fixed rod 2 and is rotationally connected with the fixed block 4, so as to control the fixed block 4 to drive the grinding block 9 of the grinding mechanism to contact with the inner wall or outer side of the connection end of the old heating pipe. At this time, when the grinding block 9 contacts the outer side or inner wall of the connection end of the old heating pipe, as the adjusting threaded shaft 5 continues to be rotated, after the slider 6 contacts the slide plate 12 on one side, the corresponding The spring 13 on the side begins to be continuously compressed by the fixed block 4 under the support of the corresponding slide plate 12, thereby ensuring that the grinding block 9 is in close contact with the connection end of the old heating pipe, thereby making the subsequent grinding and rust removal effect of the connection end of the old heating pipe better. When the adjusting threaded shaft 5 cannot continue to rotate, the external power supply of the device is turned on. At this time, the motor 7 will continuously drive the grinding block 9 to rotate to grind and remove rust from the connection end of the old heating pipe, and then the handle 14 is used to control the fixed rod 2 to rotate back and forth around the fixed axis 1, and the grinding of the grinding mechanism is further controlled. The grinding block 9 can be rotated back and forth around the outer side or inner wall of the connecting end of the old heating pipe to perform rust removal operations. When the grinding and rust removal operations are completed, the external power supply is disconnected, and then the device is reset to remove the device from the connecting end of the old heating pipe. During the use of the device, when the grinding block 9 is severely worn due to long-term use and the grinding effect becomes poor, the threaded sleeve 11 can be rotated to disengage the spiral connection with the limit shaft 10, and the grinding block 9 can be removed from the outside of the positioning shaft 8 and the outside of the limit shaft 10 for replacement. The operation is simple and convenient.

[0056] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only several embodiments are described in detail in this disclosure, it should be easily understood by the personnel referring to this disclosure that many modifications are possible (for example, the size, scale, structure, shape and ratio of various elements, and parameter values ​​(for example, temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of a plurality of parts or elements, the position of the element can be inverted or otherwise changed, and the property or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method step can be changed or reordered according to alternative embodiments. Therefore, the present invention is not limited to specific embodiments, but extends to a variety of modifications still falling within the scope of the appended claims.

[0057] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An auxiliary maintenance equipment for urban heating pipelines, characterized in that: It comprises a fixed shaft (1), a fixed rod (2) is arranged on the fixed shaft (1), a grinding piece is slidably arranged on the fixed rod (2), and a pressing locking piece is arranged at the front end of the fixed shaft (1) for fixing the device on the inner wall of the pipeline.

2. The auxiliary maintenance equipment for urban heating pipelines according to claim 1 is characterized in that: A fixing block (4) is provided at one end of the fixing rod (2); the fixing block (4) slides inside the fixing rod (2) by adjusting the threaded shaft (5); and the grinding piece is mounted on the fixing block (4).

3. The auxiliary maintenance equipment for urban heating pipelines according to claim 2 is characterized in that: The grinding member comprises a sliding block (6) slidably connected to the inner side of the fixed block (4); a motor (7) is arranged in the sliding block (6); a positioning shaft (8) is fixedly connected to the end of the main shaft of the motor (7); and a grinding block (9) is slidably connected to the outer side of the positioning shaft (8).

4. The auxiliary maintenance equipment for urban heating pipelines according to claim 3 is characterized in that: One end of the grinding block (9) is slidably connected to a limiting shaft (10), and the limiting shaft (10) is fixedly connected to the positioning shaft (8). The left end of the outer side of the positioning shaft (8) is spirally connected to a threaded sleeve (11) in close contact with the grinding block (9).

5. The auxiliary maintenance equipment for urban heating pipelines according to claim 3 is characterized in that: The upper and lower ends of the inner side of the fixed block (4) are fixedly connected to springs (13), and the other end of the spring (13) is fixedly connected to a slide plate (12) slidably connected to the fixed block (4), and the top end of the slide plate (12) is in contact with the slider (6).

6. The auxiliary maintenance equipment for urban heating pipelines according to claim 2 is characterized in that: A bearing (3) is fixedly connected inside the fixed rod (2), and is fixedly connected to the fixed shaft (1) via the bearing (3), and a handle (14) is provided at the other end.

7. The auxiliary maintenance equipment for urban heating pipelines according to claim 1 is characterized in that: The squeeze locking member comprises an operating handle (15) rotatably connected to one end of the fixed shaft (1), and the other end of the operating handle (15) is fixedly connected to a bidirectional threaded shaft (16) with threads on both sides in opposite directions.

8. The auxiliary maintenance equipment for urban heating pipelines according to claim 7 is characterized in that: The bidirectional threaded shaft (16) is rotatably connected to the fixed shaft (1), and the outer side of the bidirectional threaded shaft (16) is spirally connected to a connecting block (17) that is slidably connected to the fixed shaft (1), and an expansion portion is respectively provided on two opposite sides of the two connecting blocks (17).

9. The auxiliary maintenance equipment for urban heating pipelines according to claim 8, characterized in that: The unfolding portion comprises a rotating rod (18) rotatably connected to the outside of the connecting block (17) via a rotating shaft, and the other end of the rotating rod (18) is rotatably connected to a support rod (19) via a rotating shaft. Each unfolding portion is trapezoidal.

10. The auxiliary maintenance equipment for urban heating pipelines according to claim 9, characterized in that: A gasket (20) is fixedly connected to the outside of the support rod (19), and the gasket (20) is made of rubber material.

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