Polishing device for trenchless pipeline repair

Abstract

The utility model discloses a polishing device for trenchless pipeline repair, and particularly relates to the technical field of trenchless pipelines, which comprises a handle and a motor body fixedly connected with the top of the handle. The adjusting groove is formed in the connecting column, the pull rod is arranged in the adjusting groove, the baffle is arranged on the outer wall of the pull rod, the spring is arranged on the outer wall of the baffle, the movable block is arranged on the outer wall of the pull rod, the first sliding groove is formed in the outer wall of the movable block, and the first sliding block is arranged in the first sliding groove, so that the position of the grinding disc is fixed. When the interior of a pipeline needs to be cleaned and polished, polishing equipment needs to be used for polishing the interior of the pipeline, a polishing disc and a motor output shaft in the handheld polishing equipment are convenient to disassemble, and when a user conducts internal operation of the pipeline, the polishing disc is damaged; and follow-up handheld grinding equipment can be rapidly replaced in the pipeline for operation, and then the follow-up internal operation efficiency of the pipeline cannot be affected.

Description

Technical Field

[0001] The utility model relates to the technical field of trenchless pipelines, in particular to a grinding device for trenchless pipeline repair. Background Art

[0002] Trenchless technology refers to the use of rock drilling technology to lay, repair and replace pipelines without excavation or only excavating a small amount of working pits. It is efficient, high-quality, moderately cost-effective, environmentally friendly, and has the advantages of not affecting traffic and not polluting the environment. In many cases, it has a shorter construction period, lower overall cost and better safety than the excavation method. It has now become the main means of urban municipal construction and is widely used in the laying of gas, electricity, telecommunications, cable TV lines, oil, natural gas, heat, drainage and other pipelines across roads, railways, buildings, rivers, and in downtown areas, monument protection areas, crop and vegetation protection areas where excavation is not allowed or cannot be carried out. Trenchless pipeline repair is a type of trenchless technology.

[0003] At present, when trenchless pipeline repair is carried out on the market, especially when repairing large pipelines, the inside of the pipeline needs to be cleaned and polished first. In actual use, when the inside of the pipeline needs to be cleaned and polished, polishing equipment is needed to polish the inside of the pipeline. This is because the polishing disc and the motor output shaft in most handheld polishing devices are fixedly connected. At the same time, when the polishing disc is damaged when the user is working inside the pipeline, the subsequent handheld polishing equipment will be unable to operate inside the pipeline, thereby affecting the efficiency of subsequent operations inside the pipeline. Utility Model Content

[0004] The purpose of the utility model is to provide a grinding device for trenchless pipeline repair to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A grinding device for trenchless pipeline repair comprises a handle and a motor body fixedly connected to the top of the handle, one end of the output shaft of the motor body is fixedly connected to a connecting column, an adjustment groove is opened inside the connecting column, a pull rod is arranged inside the adjusting groove, a movable block is fixedly connected to the outer wall of the pull rod, a first sliding groove is opened on one side of the outer wall of the movable block, a first sliding block is slidably connected inside the first sliding groove, a limiting rod is hinged on the outer wall of the first sliding block, one end of the limiting rod passes through the outer wall of the connecting column and the limiting rod is slidably connected to the connecting column, a grinding disc is arranged on the outer wall of the connecting column, a connecting groove is opened on the outer wall of the grinding disc and is slidably connected to the connecting column and the connecting groove, a limiting groove is opened inside the connecting groove and one end of the limiting rod is slidably connected to the limiting groove.

[0007] Furthermore, one end of the pull rod passes through the outer wall of the connecting column and the pull rod is slidably connected to the connecting column. A baffle is fixedly connected to the outer wall of the pull rod. A spring is arranged between the outer wall of the baffle and the adjustment groove. The addition of the baffle enables the pull rod to drive the spring to move.

[0008] Furthermore, a fixing rod is fixedly connected inside the adjusting groove, and a limiting plate is slidably connected to the outer wall of the fixing rod. One end of the limiting plate is fixedly connected to the outer wall of the limiting rod. The addition of the pull rod allows the movable block to move inside the adjusting groove.

[0009] Furthermore, a second slide groove is provided inside the first slide groove, a second slider is slidably connected inside the second slide groove, and an outer wall of the second slider is fixedly connected to the first slider. The addition of the first slide groove enables the movable block to drive the first slider to move.

[0010] Furthermore, an expansion slot is provided on the outer wall of the handle, an expansion plate is slidably connected inside the expansion slot, a threaded rod is rotatably connected to the outer wall of the expansion plate, and the addition of the limit plate limits the movement trajectory of the limit rod.

[0011] Furthermore, one end of the threaded rod passes through the outer wall of the handle, and the threaded rod is connected to the handle via a thread. The addition of the threaded rod allows the expansion plate to move inside the expansion slot.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The grinding device for trenchless pipeline repair described in the utility model can make it convenient to replace the grinding disc of the equipment, by arranging an adjusting groove inside the connecting column, arranging a pull rod inside the adjusting groove, arranging a baffle on the outer wall of the pull rod, arranging a spring on the outer wall of the baffle, arranging a movable block on the outer wall of the pull rod, arranging a first slide groove on the outer wall of the movable block, arranging a first sliding block inside the first slide groove, arranging a limiting rod on the outer wall of the first sliding block, arranging a limiting plate on the outer wall of the limiting rod, and arranging a limiting groove inside the connecting groove, so that the position of the grinding disc is fixed. In the utility model, when it is necessary to clean and grind the inside of the pipeline, it is necessary to use the grinding device to grind the inside of the pipeline, and the grinding disc and the motor output shaft in the hand-held grinding device are easy to disassemble, and when the grinding disc is damaged when the user is performing operations inside the pipeline, the subsequent hand-held grinding device can be quickly replaced inside the pipeline for operation, which will not affect the efficiency of subsequent operations inside the pipeline.

[0014] 2. The grinding device for trenchless pipe repair described in the utility model can make the handle in the equipment convenient to adjust according to the user, by providing an expansion slot on the outer wall of the handle, providing an expansion plate inside the expansion slot, and providing a threaded rod on the outer wall of the expansion plate, so that the expansion plate can move inside the expansion slot. In the utility model, when the handle needs to be adaptively expanded, the threaded rod is rotated at this time, so that the subsequent handle can be adaptively adjusted according to the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a bottom sectional view of the connecting column of the utility model;

[0018] Figure 3 It is a side sectional view of the expansion slot of the utility model;

[0019] Figure 4 It is a schematic diagram of the overall structure of the movable block of the utility model.

[0020] In the figure: 1. handle; 2. motor body; 3. connecting column; 4. adjusting slot; 5. pull rod; 6. movable block; 7. first slide slot; 8. first slider; 9. limit rod; 10. grinding disc; 11. connecting slot; 12. limit slot; 13. baffle; 14. spring; 15. fixing rod; 16. limit plate; 17. second slide slot; 18. second slider; 19. expansion slot; 20. expansion plate; 21. threaded rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 , Figure 2 and Figure 4 The utility model provides a grinding device for trenchless pipeline repair, and the technical solution is as follows:

[0023] A grinding device for trenchless pipeline repair includes a handle 1 and a motor body 2 fixedly connected to the top of the handle 1, a connecting column 3 is fixedly connected to one end of the output shaft of the motor body 2, an adjusting groove 4 is opened inside the connecting column 3, a pull rod 5 is arranged inside the adjusting groove 4, a movable block 6 is fixedly connected to the outer wall of the pull rod 5, a first sliding groove 7 is opened on one side of the outer wall of the movable block 6, a first sliding block 8 is slidably connected inside the first sliding groove 7, a limiting rod 9 is hinged on the outer wall of the first sliding block 8, one end of the limiting rod 9 passes through the outer wall of the connecting column 3 and the limiting rod 9 is slidably connected to the connecting column 3, a grinding disc 10 is arranged on the outer wall of the connecting column 3, a connecting groove 11 is opened on the outer wall of the grinding disc 10 and is slidably connected to the connecting column 3 and the connecting groove 11, a limiting groove 12 is opened inside the connecting groove 11 and one end of the limiting rod 9 is slidably connected to the limiting groove 12.

[0024] In a preferred embodiment, one end of the pull rod 5 passes through the outer wall of the connecting column 3 and the pull rod 5 is slidably connected to the connecting column 3. A baffle 13 is fixedly connected to the outer wall of the pull rod 5. A spring 14 is arranged between the outer wall of the baffle 13 and the adjustment groove 4. When the pull rod 5 moves, the pull rod 5 can drive the baffle 13 to move, so that the baffle 13 drives the spring 14 to move.

[0025] In a preferred embodiment, a fixed rod 15 is fixedly connected inside the adjustment groove 4, and the outer wall of the fixed rod 15 is slidably connected to a limiting plate 16. One end of the limiting plate 16 is fixedly connected to the outer wall of the limiting rod 9. When the pull rod 5 moves, the pull rod 5 can drive the movable block 6 to move, so that the movable block 6 drives the first sliding groove 7 to move.

[0026] In a preferred embodiment, a second slide groove 17 is opened inside the first slide groove 7, a second slider 18 is slidably connected inside the second slide groove 17, and the outer wall of the second slider 18 is fixedly connected to the first slider 8. When the first slider 8 moves, the first slider 8 can move inside the first slide groove 7, and the first slider 8 can drive the second slider 18 to move.

[0027] Working principle of the utility model: when the device is used and the grinding disc 10 needs to be replaced, the pull rod 5 is pulled at this time to make the pull rod 5 slide inside the adjusting groove 4, and the pull rod 5 drives the baffle 13 to move at the same time, so that the baffle 13 slides inside the adjusting groove 4, and at the same time the baffle 13 drives the spring 14 to move, so that the spring 14 is squeezed, and at the same time the pull rod 5 drives the movable block 6 to move, and one side of the outer wall of the movable block 6 is inclined, so that the movable block 6 can drive the first slider 8 to move through the first slide groove 7, so that the first slider 8 slides inside the first slide groove 7, and the first slider 8 drives the second slider 18 to move, so that the second slider 18 slides inside the second slide groove 17, and at the same time the movable block 6 can drive the limiting rod 9 to move through the first slider 8 and the second slider 18, so that the limiting rod 9 slides inside the adjusting groove 4, and the limiting rod 9 drives When the limit plate 16 moves, the limit plate 16 slides in the adjustment slot 4, and the limit plate 16 slides on the outer wall of the fixing rod 15 at the same time. At the same time, one end of the limit rod 9 slides in the connecting slot 11, and one end of the limit rod 9 slides in the limiting slot 12 at the same time, so that one end of the limit rod 9 can be separated from the limiting slot 12. When one end of the limit rod 9 is completely separated from the limiting slot 12, the grinding disc 10 is pulled so that the grinding disc 10 can be separated from the connecting column 3, so that the new grinding disc 10 drives the connecting slot 11 to move, so that the connecting column 3 enters the connecting slot 11 inside the new grinding disc 10, so that one end of the limit rod 9 reaches one side of the limiting slot 12. At this time, the pull rod 5 is released, so that the spring 14 drives the baffle 13 and the pull rod 5 and other parts through the elastic force, so that one end of the subsequent limit rod 9 can enter the limiting slot 12, so that the subsequent grinding disc 10 can be easily replaced in time.

[0028] See also Figure 1 and Figure 3 The utility model provides a technical solution: an expansion slot 19 is opened on the outer wall of the handle 1, an expansion plate 20 is slidably connected inside the expansion slot 19, and a threaded rod 21 is rotatably connected to the outer wall of the expansion plate 20. When the first slider 8 moves, the first slider 8 can drive the limit rod 9 to move, so that the limit rod 9 can drive the limit plate 16 to move.

[0029] In a preferred embodiment, one end of the threaded rod 21 passes through the outer wall of the handle 1, and the threaded rod 21 is connected to the handle 1 through a thread. When the threaded rod 21 moves, the threaded rod 21 can move with the handle 1 through the thread, and the threaded rod 21 can drive the expansion plate 20 to move.

[0030] The working principle of the utility model is as follows: when the handle 1 needs to be adaptively expanded, the threaded rod 21 is rotated at this time, so that the threaded rod 21 and the handle 1 move through the thread, and at the same time the threaded rod 21 rotates inside the expansion slot 19, so that the threaded rod 21 can drive the expansion plate 20 to move, and the expansion plate 20 slides inside the expansion slot 19, so that the subsequent handle 1 can be adaptively adjusted according to the user.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A grinding device for trenchless pipeline repair, comprising a handle (1) and a motor body (2) fixedly connected to the top of the handle (1), characterized in that: One end of the output shaft of the motor body (2) is fixedly connected to a connecting column (3), an adjusting groove (4) is provided inside the connecting column (3), a pull rod (5) is provided inside the adjusting groove (4), a movable block (6) is fixedly connected to the outer wall of the pull rod (5), a first sliding groove (7) is provided on one side of the outer wall of the movable block (6), a first sliding block (8) is slidably connected inside the first sliding groove (7), a limiting rod (9) is hinged on the outer wall of the first sliding block (8), one end of the limiting rod (9) passes through the outer wall of the connecting column (3), and the limiting rod (9) is slidably connected to the connecting column (3), a grinding disc (10) is provided on the outer wall of the connecting column (3), a connecting groove (11) is provided on the outer wall of the grinding disc (10), and the connecting column (3) is slidably connected to the connecting groove (11), a limiting groove (12) is provided inside the connecting groove (11), and one end of the limiting rod (9) is slidably connected to the limiting groove (12).

2. The grinding device for trenchless pipeline repair according to claim 1, characterized in that: One end of the pull rod (5) passes through the outer wall of the connecting column (3) and the pull rod (5) is slidably connected to the connecting column (3). The outer wall of the pull rod (5) is fixedly connected with a baffle (13), and a spring (14) is arranged between the outer wall of the baffle (13) and the adjustment groove (4).

3. The grinding device for trenchless pipeline repair according to claim 1, characterized in that: A fixing rod (15) is fixedly connected inside the adjustment groove (4), and the outer wall of the fixing rod (15) is slidably connected to a limiting plate (16), and one end of the limiting plate (16) is fixedly connected to the outer wall of the limiting rod (9).

4. The grinding device for trenchless pipeline repair according to claim 1, characterized in that: A second sliding groove (17) is provided inside the first sliding groove (7), a second sliding block (18) is slidably connected inside the second sliding groove (17), and an outer wall of the second sliding block (18) is fixedly connected to the first sliding block (8).

5. The grinding device for trenchless pipeline repair according to claim 1, characterized in that: An expansion slot (19) is provided on the outer wall of the handle (1), an expansion plate (20) is slidably connected inside the expansion slot (19), and a threaded rod (21) is rotatably connected to the outer wall of the expansion plate (20).

6. The grinding device for trenchless pipeline repair according to claim 5, characterized in that: One end of the threaded rod (21) passes through the outer wall of the handle (1), and the threaded rod (21) and the handle (1) are connected via threads.

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