Pipeline polishing support

Abstract

The utility model relates to a pipeline polishing support, which relates to the field of pipeline supports, and comprises a support, supporting legs and a pipe support, the supporting legs are arranged below the support and used for supporting, the pipe support is arranged at the top of the support and used for containing a pipeline, a fastener is further arranged above the support, and the fastener and the pipe support are correspondingly arranged and used for fixing the pipeline; at least two rolling supporting assemblies are arranged at the bottom of the pipe support, each rolling supporting assembly comprises a first rolling piece and an elastic piece, the bottom of each elastic piece is fixedly arranged at the top of the support, the first rolling pieces are arranged at the tops of the elastic pieces, the elastic pieces are used for supporting the first rolling pieces, and the axes of the first rolling pieces are parallel to the axis direction of the pipeline. The rolling supporting assembly can support the pipeline in a rolling mode, so that the pipeline can be automatically switched between an adjusting rotating state and a fixing state, and the grinding efficiency and the positioning precision are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of pipe supports, and in particular to a pipe grinding support. Background Technology

[0002] The installation of pipelines in various projects under construction has always been a key and difficult point in delaying the overall project progress. The grinding of the bevel of existing pipelines is generally done by ground support, using wedge-shaped wood or steel pipe supports for fixation. Moreover, ground grinding requires turning the pipeline over to grind the lower part, resulting in low construction efficiency and high labor intensity for people who have to squat for a long time. Grinding with bench vises is also an option, but bench vises have a complex overall structure, and if a large number are used, the production cost is high, and their use is limited.

[0003] Currently, a Chinese patent application with publication number CN222458650U and publication date of February 11, 2025, proposes a fixing bracket for internal drainage pipes in buildings, including an upper locking ring, a lower locking ring, a limiting member, a lifting rod, and a fixing base. The upper locking ring and the lower locking ring are connected together by bolts, and the drainage pipe passes through the circular through hole formed by the upper locking ring and the lower locking ring. The limiting member is fixedly connected to the outer bottom surface of the lower locking ring, and the limiting member is detachably connected to the top of the lifting rod by a pin. The lifting rod is connected to the fixing base by a pin with adjustable length.

[0004] During use, the pipe can be fixed by the upper and lower locking rings, and the lifting rod can be adjusted to fix the pipe at the correct height.

[0005] Regarding the aforementioned technologies, existing supports are mostly used to fix and support pipes. However, during pipe grinding, the pipe needs to be rotated continuously to evenly grind its circumference and fix it in place. Existing fixed supports are not convenient for rotating and reversing the pipe during the grinding process. Utility Model Content

[0006] In order to more conveniently control the rotation of the pipe during the pipe grinding process and to fix the pipe during grinding, this utility model provides a pipe grinding bracket.

[0007] This utility model provides a pipe grinding support, which adopts the following technical solution:

[0008] A pipe grinding support includes a support, legs, and a pipe support. The legs are positioned below the support for support, and the pipe support is positioned on top of the support for holding a pipe. Fasteners are also positioned above the support, corresponding to the pipe support, to secure the pipe. At least two sets of rolling support assemblies are provided at the bottom of the pipe support. Each rolling support assembly includes a first rolling element and an elastic element. The bottom of the elastic element is fixedly positioned on the top of the support, and the first rolling element is positioned on top of the elastic element, supporting the first rolling element. The axis of the first rolling element is parallel to the axis of the pipe. When the elastic element is released, the outer circumferential surface of the first rolling element is higher than the end face of the pipe support that contacts the pipe, providing rolling support for the pipe. When the elastic element deforms, the outer circumferential surface of the first rolling element is lower than the end face of the pipe support that contacts the pipe, providing support for the pipe.

[0009] By adopting the above technical solution, during use, the fastener is first moved away from the pipe support, and then the pipe is placed on the pipe support. When the pipe is placed on the pipe support, the first rolling element will extend upward under the action of the elastic element, and the circumference of the first rolling element will be higher than the part of the pipe support used to contact the pipe, so that the pipe is supported on the first rolling element. Then, the first rolling element is driven to roll, and the first rolling element can drive the pipe to rotate, which facilitates the adjustment of the direction of pipe grinding. When grinding the pipe, the fastener is used to clamp the pipe on the pipe support. When the fastener clamps the pipe, the pipe will press the first rolling element downward under the abutment of the fastener. Then, the first rolling element compresses the elastic element, causing the first rolling element to move downward. When the outer circumference of the first rolling element is lower than the part of the pipe support used to contact the pipe, the pipe is clamped between the pipe support and the fastener, so that the position of the pipe is fixed.

[0010] Tightening the fasteners in this way will fix the position of the pipe for grinding. Loosening the fasteners will allow the first rolling element to move upward under the action of the elastic element, supporting the pipe on the first rolling element. The rotation of the first rolling element can be controlled, or the rotation of the pipe can be directly controlled, making it convenient to adjust the grinding position of the pipe.

[0011] Optionally, it also includes a drive assembly, which includes a drive component and a transmission component. The drive component is fixedly disposed on the top of the bracket, and the transmission component is disposed between the drive component and the first rolling component. The drive component drives the first rolling component to rotate through the transmission component.

[0012] When controlling the rotation of the pipeline, the outer circumference of the pipeline is annular, making it inconvenient to apply force. By adopting the above technical solution, when the fasteners are loosened, the pipeline is supported on the first rolling element. The rotation of the first rolling element is controlled by the drive and transmission components, which in turn drives the pipeline to rotate, adjusting the grinding position of the pipeline. In this way, using the drive to control the rotation of the first rolling element, and thus the rotation of the pipeline, makes it easier to apply force.

[0013] Optionally, the driving component is a motor, and the output shaft of the motor is connected to the transmission component.

[0014] By adopting the above technical solution, using an electric motor as the driving component can save manpower.

[0015] Optionally, the driving component is a second rolling component, which is rotatably mounted on the top of the bracket. The second rolling component is connected to the first rolling component through the transmission component, and a handle is fixedly connected to the second rolling component.

[0016] By adopting the above technical solution, the manual drive handle can be rotated, which in turn drives the second rolling element to rotate. The second rolling element drives the first rolling element through the transmission element. Using the handle and the second rolling element to drive the pipe can reduce the dependence on electricity during outdoor operations. Furthermore, manually driving the pipe to rotate allows for more precise adjustment of the pipe's rotation direction.

[0017] Optionally, the transmission component is a transmission belt, one end of which is connected to the driving component, and the other end of which is connected to the first rolling component; a tensioning device is also provided on the top of the bracket, which is used to keep the transmission belt tensioned.

[0018] Since the position of the first rolling element changes with the compression of the pipe, the position of the transmission element needs to be adjusted according to the position of the first rolling element. By adopting the above technical solution, the transmission belt is made of flexible material. When the position of the first rolling element changes, the position of the transmission element will change accordingly. Since the position between the first rolling element and the driving element will change when the position of the first rolling element changes, a tensioning device is set to keep the position of the transmission belt taut, which can make the transmission belt transmit power more stably.

[0019] Optionally, the transmission component is a gear set, with one end of the gear being connected to the driving component and the other end of the gear being connected to the first rolling component; the top of the bracket is also provided with a clutch device, which is engaged when the first rolling component provides rolling support for the pipeline, and the gear set maintains transmission with the first rolling component through the clutch device.

[0020] By adopting the above technical solution, when using a gear set as a transmission component, gears are provided on the rotating shafts of both the driving component and the first rolling component, and the gear set is used to drive the gears on the rotating shaft of the driving component and the gears provided on the rotating shaft of the first rolling component. Since the position of the first rolling component may change, a clutch device is provided to maintain the transmission of power when the position of the gears on the first rolling component changes.

[0021] Optionally, a reinforcing link is provided between the tube support and the bracket, with one end of the reinforcing link fixedly disposed at the bottom of the tube support and the other end fixedly disposed at the outer circumferential surface of the bracket.

[0022] By adopting the above technical solution, since the pipe support has to bear the weight of the pipe and the pipe is relatively long, setting a reinforcing rod can increase the connection strength between the pipe support and the support frame, and increase the stability of the pipe support when supporting the pipe.

[0023] Optionally, the bracket is a telescopic structure.

[0024] By adopting the above technical solution, the support can be set as a telescopic structure to adjust the height of the pipe, making it easier to adapt to people of different heights for the best grinding method.

[0025] Optionally, the bracket includes an adjusting screw, an adjusting ring, and an outer sleeve. The top of the outer sleeve is provided with a mounting groove. The adjusting ring is rotatably disposed in the mounting groove. The adjusting screw passes through the adjusting ring and the mounting groove, and the adjusting screw and the adjusting ring are threadedly engaged.

[0026] By adopting the above technical solution, after the pipe is supported on the pipe support, rotating the adjusting ring allows the adjusting screw and adjusting ring to move up and down relative to the adjusting ring through the threaded engagement. The adjusting screw, which passes through the mounting groove in the outer sleeve, increases the stability of the adjusting sleeve during movement. Rotating the adjusting ring drives the adjusting screw, allowing control of the adjusting screw's raising and lowering even when it is not rotating. Thus, using the adjusting ring to adjust the screw's height through the threaded structure allows for adjustment of the pipe support's height without changing its orientation. Furthermore, because the adjusting ring supports the adjusting screw through the threaded structure, the pipe's height can be adjusted in real time after it is placed on the pipe support.

[0027] Optionally, the bracket includes an outer cylinder and an inner cylinder, with the inner cylinder passing through the outer cylinder. The inner cylinder and the outer cylinder are slidably arranged along the axial direction of the inner cylinder, and the inner cylinder and the outer cylinder are fixed and limited by fastening bolts.

[0028] By adopting the above technical solution, the height of the pipe support can be adjusted by directly pulling the inner cylinder to slide in the outer cylinder. When the height of the pipe support is adjusted to a suitable position, the inner cylinder and the outer cylinder are fixed with fastening bolts to fix the pipe support at the adjusted height. Then, the pipe can be placed on the pipe support.

[0029] In summary, this utility model has at least one of the following beneficial technical effects:

[0030] By setting an elastic element at the bottom of the first rolling element, the pipeline can automatically switch between the adjusted rotation state and the fixed state. When the elastic element is released, the first rolling element is higher than the pipe support surface, and the first rolling element provides rolling support for the pipeline, which facilitates the control of pipeline rotation. When the fastener presses down on the pipeline, the elastic element is compressed, the first rolling element falls, and the pipe support contacts and fixes the pipeline. The mechanical linkage simplifies the operation process of pipeline rotation and fixation during pipeline grinding, and significantly improves grinding efficiency and positioning accuracy.

[0031] The system adopts a dual-mode drive structure of motor drive and manual drive to resolve the contradiction between the reliance on electricity for outdoor operations and the need for precise adjustment of pipeline rotation. At the same time, it utilizes the cooperation of transmission belt and tensioning device, or the cooperation of gear set and clutch device, to realize the transmission during the first rolling movement process, so that the transmission component can more stably transmit the power of the drive component to the first rolling component.

[0032] By adjusting the screw, adjusting ring, and outer sleeve threaded connection, the bracket height can be infinitely adjusted and self-locking is achieved. When the adjusting ring is rotated, the threaded pair converts the rotational motion into the vertical displacement of the adjusting screw. With the help of the mounting groove guide, the stability of the adjusting screw's lifting and lowering is ensured. This structure can still be used to make fine adjustments to the height with one hand under load. At the same time, the self-locking characteristic of the threaded pair is used to achieve self-locking of the bracket height after the height adjustment is completed. Attached Figure Description

[0033] Figure 1 This is a three-dimensional structural diagram of an embodiment of this application;

[0034] Figure 2 yes Figure 1 Schematic diagram of the pipeline supported on the pipe support;

[0035] Figure 3 yes Figure 1 A schematic diagram showing the state of the central pipe supported on the first rolling element;

[0036] Figure 4 This is an exploded view of the overall structure in the embodiments of this application;

[0037] Figure 5 yes Figure 4 Enlarged view of part A in the middle.

[0038] Explanation of reference numerals in the attached drawings: 100, bracket; 110, adjusting screw; 120, adjusting ring; 130, outer sleeve; 131, mounting groove; 200, support leg; 300, pipe support; 310, reinforcing connecting rod; 400, fastener; 500, rolling support assembly; 510, first rolling element; 520, elastic element; 600, drive assembly; 610, drive element; 620, transmission element; 630, tensioning device; 700, pipe. Detailed Implementation

[0039] The following combination Figures 1 to 5 The present invention will be described in further detail below.

[0040] Example 1: This embodiment of the present invention discloses a pipe 700 grinding bracket 100. (Refer to...) Figures 1 to 3 A pipe 700 grinding support 100 mainly includes a support 100, a support leg 200, a pipe support 300, a fastener 400, and a rolling support assembly 500. The support leg 200 is fixedly installed at the bottom of the support 100 for support. The pipe support 300 is installed on the top of the support 100 to support the pipe 700. The fastener 400 is located on the top of the support 100, and the fastener 400 and the pipe support 300 are positioned opposite each other. The rolling support assembly 500 is located on the top of the support 100, and the rolling support assembly 500 is positioned corresponding to the pipe support 300. When placed on top of the bracket 100 for support, with the rolling support assembly 500 retracted, the pipe 700 is supported on the pipe support 300. The pipe 700 can be clamped between the fastener 400 and the pipe support 300 for fixation, reducing the rolling of the pipe 700 during grinding. With the rolling support assembly 500 extended, the pipe 700 is supported on the rolling support assembly 500, which provides rolling support for the pipe 700, making it easy to control the rotation of the pipe 700 and adjust the grinding direction of the pipe 700.

[0041] Reference Figure 4 The bracket 100 is a telescopic structure. Specifically, the bracket 100 includes an adjusting screw 110, an adjusting ring 120, and an outer tube 130. The top of the outer tube 130 is provided with a mounting groove 131. The adjusting ring 120 is rotatably disposed in the mounting groove 131. The adjusting screw 110 passes through the adjusting ring 120 and the mounting groove 131. The adjusting screw 110 and the adjusting ring 120 are connected by a threaded connection.

[0042] In use, rotating the adjusting ring 120 causes the adjusting screw 110 and the adjusting ring 120 to move up and down under the engagement of the threads. The adjusting screw 110 passes through the mounting groove 131 in the outer sleeve 130, which can increase the stability of the adjusting sleeve during movement. Rotating the adjusting ring 120 drives the adjusting screw 110, which can control the raising and lowering of the adjusting screw 110 without rotating it. The self-locking characteristic of the threaded pair is used to fix and support the position of the adjusting screw 110.

[0043] Reference Figure 4 The support leg 200 adopts a triangular support leg 200 structure and is made on-site from steel pipes. The steel pipe structure of the support leg 200 is selected according to the load-bearing requirements of the overall structure between grinding and polishing, and then the material is cut and assembled. The support leg 200 is directly welded and fixed to the bottom of the outer sleeve 130 of the bracket 100. The specific operation is as follows: after the triangular support leg 200 is cut, the cut part is ground and then arranged at a bottom interval of 120 degrees and welded to the outer sleeve 130. After the welding is completed, the dimensions are checked to meet the requirements and then the final welding is performed. In order to enhance the stability of the triangular support leg 200, the triangular support leg 200 is reinforced and connected with round steel to form an integral structure.

[0044] Reference Figure 4 A frame is fixedly installed on the top of the adjusting screw 110. The frame has a "channel-shaped" structure and is made of channel steel. The channel steel is placed on the adjusting screw 110 with the opening of the channel steel facing to the side. The bottom of the frame is directly welded to the adjusting screw 110. In order to increase the stability of the frame, a reinforcing connecting rod 310 is installed at the bottom of the frame. One end of the reinforcing connecting rod 310 is fixedly installed at the bottom of the frame, and the other end is fixedly installed on the outer circumference of the bracket 100.

[0045] Reference Figure 2 and Figure 3 The pipe support 300 is fixedly installed at the bottom of the frame. Specifically, the pipe support 300 is a saddle-shaped structure. The saddle-shaped pipe support 300 is made of steel plate and is formed into a double V-shaped structure by bending and welding. The bottom V-shaped structure is welded to the frame, and the top V-shaped structure is used to support the pipe 700. The double V-shaped structures are fixed by welding. The top V-shaped structure has a large opening, which facilitates the fastening and fixing of various types of pipes 700.

[0046] Reference Figure 4 The top of the frame has a threaded hole, which is located directly above the pipe support 300. The fastener 400 is a fastening screw, which passes through the threaded hole and is connected to the frame. Rotating the fastening screw can move the fastening screw up and down relative to the threaded hole and adjust the height of the fastening screw so that the end of the fastening screw abuts against the surface of the pipe 700, thus fixing the pipe 700 against the pipe support 300.

[0047] Reference Figure 5 The rolling support assembly 500 is fixedly installed inside the frame. Two sets of rolling support assemblies 500 are provided, respectively located on both sides of the pipe support 300. Specifically, each rolling support assembly 500 includes a first rolling element 510 and an elastic element 520. In this embodiment, the first rolling element 510 is a flexible roller, and the elastic element 520 is a gas spring. The elastic element 520 is fixedly installed at the bottom of the frame and faces upwards, positioned on the side of the pipe support 300. The first rolling element 510 is rotatably positioned above the elastic element 520, and the axial direction of the first rolling element 510 is parallel to the axial direction of the pipe 700 placed on the pipe support 300. When the elastic element 520 is released, it pushes the first rolling assembly upwards, causing the first... The outer ring surface of the rolling element 510 is higher than the end face of the pipe support 300 that is in contact with the pipe 700. When the pipe 700 is placed on the pipe support 300, the first rolling element 510 is used to provide rolling support for the pipe 700. When the elastic element 520 is compressed, the pipe 700 compresses the elastic element 520 downward. The outer ring surface of the first rolling element 510 is lower than the end face of the pipe support 300 that is in contact with the pipe 700. When the pipe 700 is placed on the pipe support 300, the pipe support 300 directly contacts the outer circumferential surface of the pipe 700 to support the pipe 700. Since the elastic element 520 is elastic, when the fastener 400 moves downward, the end of the fastener 400 abuts against the surface of the pipe 700, causing the pipe 700 to move downward and compress the elastic element 520.

[0048] Reference Figure 5 The first rolling element 510 is driven to rotate by the drive assembly 600. The drive assembly 600 includes a drive element 610 and a transmission element 620. In this embodiment, the drive element 610 is the second rolling element. A bearing seat is provided on the frame, and a rocker arm is driven in the bearing seat. The second rolling element is fixedly installed at the end of the rocker arm, and the position of the second rolling element corresponds to the position of the first rolling element 510. The rocker arm is fixedly connected to the handle. Rotating the handle can drive the second rolling element to rotate. The transmission element 620 uses a belt for transmission. One end of the transmission belt is sleeved on the first rolling element 510, and the other end of the transmission belt is sleeved on the second rolling element. When the second rolling element is driven to rotate, the second rolling element drives the first rolling element 510 to rotate through the belt. In order to keep the belt taut and transmit power when the position of the first rolling element 510 changes, a tensioning device 630 is also provided inside the frame. The tensioning device 630 is in elastic contact to keep the transmission belt taut.

[0049] In other embodiments, a motor can be used as the driving element 610, and a roller is provided on the output shaft of the motor. A belt is sleeved on the roller and the first rolling element 510. When the output shaft of the motor rotates, the first rolling element 510 can be driven to rotate by the belt.

[0050] Optionally, a gear set can be used as the transmission component 620. One end of the gear is connected to the drive component 610, and the other end of the gear is connected to the first rolling component 510. A clutch device is also provided on the top of the bracket 100. When the first rolling component 510 provides rolling support for the pipe 700, the clutch device is engaged, and the gear set maintains transmission with the first rolling component 510 through the clutch device. When the gear set is used as the transmission component 620, gears are provided on the rotating shafts of both the drive component 610 and the first rolling component 510. The gear set connects the gears on the rotating shaft of the drive component 610 and the gears on the rotating shaft of the first rolling component 510. Since the position of the first rolling component 510 may change, the clutch device can maintain power transmission when the position of the gears on the first rolling component 510 changes.

[0051] Example 2: Based on Example 1, the support 100 can also be composed of an outer cylinder and an inner cylinder. The outer cylinder has a fastening hole through its wall, and a fastening bolt is installed in the fastening hole. The inner cylinder is inserted into the outer cylinder, allowing the inner cylinder to slide in the outer cylinder along its axial direction, thereby extending the support 100. When the fastening bolt is tightened, the end of the fastening bolt passes through the side wall of the outer cylinder and abuts against the outer circumferential surface of the inner cylinder, thus fixing the relative positions of the inner and outer cylinders. In use, the height of the pipe support 300 can be adjusted by directly pulling the inner cylinder to slide in the outer cylinder. When the height of the pipe support 300 is adjusted to a suitable position, the inner and outer cylinders can be fixed using the fastening bolt.

[0052] In other embodiments, the support 100 may also employ telescopic structures such as electric actuators, hydraulic rods, and threaded sleeves to achieve the extension and shortening of the support 100.

[0053] The implementation principle of the pipe 700 grinding bracket 100 of this utility model embodiment is as follows: In use, firstly, the pipe 700 is placed on the pipe support 300. Under the action of the elastic element 520, the first rolling element 510 is lifted, so that the pipe 700 is rolled and supported on the first rolling element 510. Then, the first rolling element 510 is driven to rotate by the drive assembly 600 to adjust the direction of the pipe 700. Next, the fastener 400 is adjusted so that the fastener 400 moves downward. The fastener 400 abuts against the surface of the pipe 700, causing the pipe 700 to move downward and compressing the elastic element 520, so that the pipe 700 is clamped between the fastener 400 and the pipe support 300, thus fixing the pipe 700. Finally, the height of the bracket 100 is adjusted to grind the pipe 700.

[0054] In summary, this application provides a rolling support component 500 on the side of the pipe support 300, enabling the pipe 700 to automatically switch between the adjusted rotation state and the fixed state, significantly improving grinding efficiency and positioning accuracy; it adopts a dual-mode drive structure of motor drive and manual drive to resolve the contradiction between power dependence and fine adjustment in outdoor operations; and it sets the bracket 100 as a telescopic structure to facilitate adjustment of the grinding height, adapting to people of different heights for the best grinding method.

[0055] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A pipe polishing support (100) comprising a support (100), a support leg (200) arranged below the support (100) for supporting, and a pipe holder (300) arranged on top of the support (100) for containing a pipe, characterized in that, a fastener (400) is further arranged above the support (100) and corresponds to the pipe holder (300) for fixing the pipe; at least two groups of rolling support assemblies (500) are arranged at the bottom of the pipe holder (300), each rolling support assembly (500) comprising a first rolling member (510) and an elastic member (520), the elastic member (520) being fixedly arranged at the top of the support (100), and the first rolling member (510) being arranged at the top of the elastic member (520), the elastic member (520) being used for supporting the first rolling member (510), and the axis of the first rolling member (510) being parallel to the axis direction of the pipe; when the elastic member (520) is released, the outer ring surface of the first rolling member (510) is higher than the end surface of the pipe holder (300) used for contacting the pipe, and the first rolling member (510) is used for rolling support of the pipe; when the elastic member (520) is deformed, the outer ring surface of the first rolling member (510) is lower than the end surface of the pipe holder (300) used for contacting the pipe, and the pipe holder (300) is used for supporting the pipe.

2. A pipe polishing support (100) according to claim 1, characterized in that: a driving assembly (600) is further included, the driving assembly (600) comprising a driving member (610) and a transmission member (620), the driving member (610) being fixedly arranged at the top of the support (100), and the transmission member (620) being arranged between the driving member (610) and the first rolling member (510), the driving member (610) driving the first rolling member (510) to rotate through the transmission member (620).

3. A pipe polishing support (100) according to claim 2, characterized in that: The driving member (610) is an electric motor, and the output shaft of the electric motor is in transmission connection with the transmission member (620).

4. A pipe polishing support (100) according to claim 2, characterized in that: The driving member (610) is a second rolling member, the second rolling member being rotatably installed at the top of the support (100), the second rolling member being connected with the first rolling member (510) through the transmission member (620), and a handle being fixedly connected to the second rolling member.

5. A pipe grinding support (100) according to any one of claims 2-4, characterized in that: The transmission member (620) is a transmission belt, one end of the transmission belt being in transmission connection with the driving member (610), and the other end of the transmission belt being in transmission connection with the first rolling member (510). A tensioning device (630) is further arranged at the top of the support (100), and the tensioning device (630) is used for keeping the transmission belt in tension.

6. A pipe polishing support (100) according to claim 5, characterized in that: The transmission member (620) is a gear set, one end of the gear being in transmission connection with the driving member (610), and the other end of the gear being in transmission connection with the first rolling member (510). A clutch device is further arranged at the top of the support (100), the clutch device being in communication when the first rolling member (510) is rolling supporting the pipe, and the gear set keeping transmission with the first rolling member (510) through the clutch device.

7. A pipe grinding support (100) according to any one of claims 1-4, characterized in that: A reinforcing connecting rod (310) is arranged between the pipe support (300) and the support (100), one end of the reinforcing connecting rod (310) is fixedly arranged at the bottom of the pipe support (300), and the other end is fixedly arranged at the outer peripheral surface of the support (100).

8. A pipe grinding support (100) according to any one of claims 1-4, characterized in that: The support (100) is of telescopic structure.

9. A pipe polishing support (100) according to claim 8, characterized in that: The support (100) comprises an adjusting screw (110), an adjusting ring (120) and an outer sleeve (130), the outer sleeve (130) is provided with a mounting groove (131) at the top, the adjusting ring (120) is rotatably arranged in the mounting groove (131), the adjusting screw (110) is arranged in the adjusting ring (120) and the mounting groove (131), and the adjusting screw (110) and the adjusting ring (120) are threadedly matched.

10. A pipe polishing support (100) according to claim 8, characterized in that: The support (100) comprises an outer cylinder and an inner cylinder, the inner cylinder is arranged in the outer cylinder, the inner cylinder and the outer cylinder are slidably arranged along the axial direction of the inner cylinder, and the inner cylinder and the outer cylinder are fixedly limited by fastening bolts.

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