Pipeline butt joint lubrication auxiliary device for pipeline construction

Abstract

The utility model provides a pipeline butt joint lubrication auxiliary device for pipeline construction, which comprises a chute, a butt joint mechanism is arranged on the top surface of the chute in a sliding manner, the butt joint mechanism comprises a turnover assembly, a fixed seat, a first support column and a second support column, the turnover assembly is connected in the chute in a sliding manner, and the fixed seat is fixed on the top surface of the turnover assembly. A first supporting column is fixed to one side of the fixing base, a second supporting column is fixed to the other side of the fixing base, the outer wall of the first supporting column is sleeved with an inner brush assembly, and the outer wall of the second supporting column is sleeved with an outer brush assembly. The turning-over assembly slides on the sliding groove, so that the inner brush assembly and the outer brush assembly are in butt joint with the outer connecting pipe and the inner connecting pipe respectively, then the turning-over assembly is used for pushing the inner brush assembly and the outer brush assembly to rotate at the same time, and therefore cleaning of the inner wall of the outer connecting pipe and the outer wall of the butt joint section of the inner connecting pipe is achieved. And then the lubricating oil is sprayed on the outer wall of the external connection section of the internal connection pipe, so that the efficiency and convenience of auxiliary pipeline lubrication are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline construction equipment, in particular to a pipeline butt joint lubrication auxiliary device for pipeline construction. Background Art

[0002] Pipelines are widely used. Construction pipelines are usually used to transport various fluids, such as water, oil, natural gas, wastewater, etc., to meet the needs of industrial production and domestic water or as an important channel for energy transmission. In municipal engineering, pipelines are used for sewers, gas pipelines, heating pipelines, etc. to provide support for urban infrastructure. Among them, good pipe docking can ensure the sealing inside the pipeline system and prevent leakage, thereby ensuring the safe transmission of the medium and improving the overall operation efficiency. The correct docking method can ensure the stability of the pipe joint and reduce the cost of pipe rupture or damage caused by interface problems. In order to improve the stability of the docking, the butt end of the pipe is generally lubricated.

[0003] At present, the butted pipes are generally arranged as an outer pipe and an inner pipe with a butt joint section. During the butt joint process, the inner wall of the outer pipe is cleaned, and then the butt joint section of the inner pipe is cleaned, and then lubricating oil is applied to the butt joint section of the inner pipe so that the inner pipe can be smoothly butt jointed to the inside of the outer pipe. However, this operation is not only cumbersome, but also very inconvenient for placing the outer pipe and the inner pipe in the circumferential direction.

[0004] In summary, there is a need for a pipeline docking lubrication auxiliary device that improves the convenience of lubrication operation. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a pipeline butt joint lubrication auxiliary device for pipeline construction, which solves the problems mentioned in the background technology.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A pipeline docking lubrication auxiliary device for pipeline construction includes a slide groove, a docking mechanism is slidably arranged on the top surface of the slide groove, the docking mechanism includes a flip-joint assembly, a fixed seat, a first support column and a second support column, the flip-joint assembly is slidably connected to the inside of the slide groove, the fixed seat is fixed on the top surface of the flip-joint assembly, the first support column is fixed on one side of the fixed seat, and the second support column is fixed on the other side, the outer wall of the first support column is sleeved with an inner brush assembly, the outer wall of the second support column is sleeved with an outer brush assembly, the top surface of the fixed seat is provided with a liquid storage tank, the top surface of the liquid storage tank is connected to a water pump, one side of the water pump is connected to a spray pipe, the spray pipe is arranged on the top of the second support column, the bottoms of the inner brush assembly and the outer brush assembly are meshed and connected with the flip-joint assembly, the inner brush assembly is pushed to rotate on the first support column by the flip-joint assembly, and the outer brush assembly is pushed to rotate on the second support column by the flip-joint assembly.

[0008] Furthermore, the flip-up assembly includes a slide plate, a push-and-turn component, a support plate, a guide rod and a positioning nut. The slide plate is slidably plugged into the interior of the slide groove. Two guide rods are connected through the interior of the support plate. The bottom end of the guide rod is connected to the top surface of the slide plate. Two positioning nuts are threadedly sleeved on the outer wall of the guide rod. The support plate is arranged between the two positioning nuts. A push-and-turn component is arranged on the top surface of the support plate, and the push-and-turn component is meshedly connected to the bottom of the inner brush assembly and the outer brush assembly.

[0009] Furthermore, the pushing and turning component includes a push-pull plate, a connecting plate, a limit plate and a tooth plate. The push-pull plate is fixed on the top surface of the connecting plate. Two tooth plates are connected to one side of the connecting plate. The outer wall of the tooth plate is sleeved with the limit plate. The limit plate is fixed to the top surface of the support plate. The top surfaces of the two tooth plates are respectively meshed and connected to the bottom of the inner brush assembly and the outer brush assembly.

[0010] Furthermore, the inner brush assembly includes a first gear ring, a first rotating cylinder, a guide ring, a first sliding rod, an inner cylinder, a first pneumatic rod and a rolling brush component, a first gear ring is fixed at one end of the first rotating cylinder, the first rotating cylinder and the first gear ring are both sleeved on the outer wall of the first support column, the bottom of the first gear ring is meshed with the top surface of a gear plate, a guide ring is fixed at the other end of the first rotating cylinder, a first sliding rod is inserted into the outer wall of the first rotating cylinder, one end of the first sliding rod is connected to the inner cylinder, the inner end surface of the inner cylinder is connected to the first pneumatic rod, one side of the first pneumatic rod is fixedly connected to the end surface of the first support column, a rolling brush component is arranged through the outer wall of the inner cylinder, and multiple groups of rolling brush components are arranged along the circumferential direction of the outer wall of the inner cylinder.

[0011] Furthermore, the roller brush component includes an insertion rod, a bracket, a first roller brush wheel, a spring and an inclined block. The insertion rod is connected to the side wall of the inner cylinder, one end of the insertion rod extends out of the outer wall of the inner cylinder and is connected to the bracket, the first roller brush wheel is rotatably connected inside the bracket, one end of the insertion rod is inserted into the inner cylinder and is connected to the inclined block, the side of the inclined block close to the guide ring is a sloped structure, and the outer wall of the insertion rod is sleeved with a spring.

[0012] Furthermore, the outer brush assembly includes a second gear ring, a second rotating cylinder, a second sliding rod, a baffle, a second pneumatic rod and a second roller brush wheel, a second gear ring is fixed to one end of the second rotating cylinder, the second rotating cylinder and the second gear ring are both sleeved on the outer wall of the second support column, the bottom of the second gear ring is meshed and connected with the top surface of another gear plate, the first sliding rod is inserted into the outer wall of the second rotating cylinder, one end of the first sliding rod is connected to the baffle, one side of the baffle is connected to the second pneumatic rod, one side of the second pneumatic rod is fixedly connected to the end face of the second support column, and one side of the baffle side wall is rotatably connected to two second roller brush wheels.

[0013] The utility model provides a pipeline joint lubrication auxiliary device for pipeline construction. Compared with the prior art, it has the following beneficial effects:

[0014] 1. By sliding the flip assembly on the slide, the inner brush assembly and the outer brush assembly are docked with the outer tube and the inner tube respectively, and then the flip assembly is used to simultaneously push the inner brush assembly and the outer brush assembly to rotate, so as to clean the inner wall of the outer tube and the outer wall of the docking section of the inner tube, and then spray lubricating oil on the outer wall of the outer section of the inner tube, thereby improving the efficiency and convenience of the auxiliary lubrication pipeline;

[0015] 2. The inner brush assembly and the outer brush assembly can be flexibly docked by sliding the slide plate inside the slide groove, and the height of the support plate can be adjusted by rotating the positioning nut on the guide rod, so that the inner brush assembly and the outer brush assembly can be accurately docked with the outer pipe and the inner pipe, thereby improving the flexibility and accuracy of docking;

[0016] 3. After the inner tube is pushed into the outer tube by the first pneumatic rod, multiple groups of roller brush components are separated from the guide ring and unfolded at the same time, so that the roller brush components are unfolded and pressed against the inner wall of the outer tube. After the roller brush operation is completed, multiple groups of roller brush components are simultaneously gathered by the guide ring and separated from the inner wall of the outer tube, which improves the convenience of operation and ensures the stability of the cleaning operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It shows a schematic structural diagram of the state of the external pipe and the internal pipe of the pipeline joint lubrication auxiliary device for pipeline construction of the utility model;

[0019] Figure 2 The overall structure schematic diagram of the utility model is shown;

[0020] Figure 3 The schematic diagram of the docking mechanism structure of the utility model is shown;

[0021] Figure 4 The schematic diagram of the structure of the flip assembly of the utility model is shown;

[0022] Figure 5 The schematic diagram of the structure of the inner brush assembly of the utility model is shown;

[0023] Figure 6 A schematic structural diagram of a roller brush component of the utility model is shown;

[0024] Figure 7 A schematic diagram of the structure of the outer brush assembly of the utility model is shown;

[0025] As shown in the figure: 1. slideway; 2. docking mechanism; 21. flip assembly; 211. slide plate; 212. push-turn component; 2121. push-pull plate; 2122. connecting plate; 2123. limit plate; 2124. tooth plate; 213. support plate; 214. guide rod; 215. positioning nut; 22. fixing seat; 23. first support column; 24. second support column; 3. inner brush assembly; 31. first tooth ring; 32. first rotating drum; 33. guide ring; 34. First slide bar; 35. Inner cylinder; 36. First pneumatic rod; 37. Roller brush component; 371. Insert rod; 372. Bracket; 373. First roller brush wheel; 374. Spring; 375. Oblique receiving block; 4. Outer brush assembly; 41. Second gear ring; 42. Second rotating cylinder; 43. Second slide bar; 44. Baffle; 45. Second pneumatic rod; 46. Second roller brush wheel; 5. Liquid storage tank; 6. Water pump; 7. Spray pipe; 8. External pipe; 9. Internal pipe. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0027] Embodiment 1

[0028] In order to solve the technical problems in the background technology, the following pipeline joint lubrication auxiliary device for pipeline construction is provided:

[0029] Combination Figure 1-Figure 7 As shown, the pipeline joint lubrication auxiliary device for pipeline construction provided by the utility model comprises a slide 1, a joint mechanism 2 is slidably arranged on the top surface of the slide 1, the joint mechanism 2 comprises a flip assembly 21, a fixed seat 22, a first support column 23 and a second support column 24, the flip assembly 21 is slidably connected to the inside of the slide 1, a fixed seat 22 is fixed on the top surface of the flip assembly 21, a first support column 23 is fixed on one side of the fixed seat 22, and a second support column 24 is fixed on the other side, and an outer wall sleeve of the first support column 23 is provided. An inner brush assembly 3 is connected, an outer brush assembly 4 is sleeved on the outer wall of the second support column 24, a liquid storage tank 5 is arranged on the top surface of the fixed seat 22, a water pump 6 is connected to the top surface of the liquid storage tank 5, a spray pipe 7 is connected to one side of the water pump 6, and the spray pipe 7 is arranged on the top of the second support column 24. The bottoms of the inner brush assembly 3 and the outer brush assembly 4 are meshed and connected with the flip assembly 21, the inner brush assembly 3 is pushed to rotate on the first support column 23 by the flip assembly 21, and the outer brush assembly 4 is pushed to rotate on the second support column 24 by the flip assembly 21;

[0030] The above structure has the following effects: by sliding the flip assembly 21 on the slide groove 1, the inner brush assembly 3 and the outer brush assembly 4 are respectively docked with the outer tube 8 and the inner tube 9, and then the flip assembly 21 is used to simultaneously push the inner brush assembly 3 and the outer brush assembly 4 to rotate, thereby achieving the cleaning of the inner wall of the outer tube 8 and the outer wall of the docking section of the inner tube 9, and then spraying lubricating oil on the outer wall of the external section of the inner tube 9, thereby improving the efficiency and convenience of the auxiliary lubrication pipeline.

[0031] In this embodiment, the flip assembly 21 includes a slide plate 211, a push-turn component 212, a support plate 213, a guide rod 214 and a positioning nut 215. The slide plate 211 is slidably plugged into the interior of the slide slot 1, and two guide rods 214 are connected to the interior of the support plate 213. The bottom end of the guide rod 214 is connected to the top surface of the slide plate 211. The outer wall of the guide rod 214 is threadedly sleeved with two positioning nuts 215. The support plate 213 is arranged between the two positioning nuts 215. The top surface of the support plate 213 is provided with a push-turn component 212, and the push-turn component 212 is meshedly connected to the bottom of the inner brush assembly 3 and the outer brush assembly 4.

[0032] The inner brush assembly 3 and the outer brush assembly 4 can be flexibly docked by sliding the slide plate 211 inside the slide groove 1, and the positioning nut 215 can be rotated on the guide rod 214 to adjust the height of the support plate 213, so that the inner brush assembly 3 and the outer brush assembly 4 can be accurately docked with the external pipe 8 and the internal pipe 9, thereby improving the flexibility and accuracy of the docking.

[0033] In this embodiment, the pushing and rotating component 212 includes a push-pull plate 2121, a connecting plate 2122, a limit plate 2123 and a tooth plate 2124. The push-pull plate 2121 is fixed on the top surface of the connecting plate 2122. Two tooth plates 2124 are connected to one side of the connecting plate 2122. The outer wall of the tooth plate 2124 is sleeved with the limit plate 2123. The limit plate 2123 is fixed to the top surface of the support plate 213. The top surfaces of the two tooth plates 2124 are respectively meshed and connected to the bottom of the inner brush assembly 3 and the outer brush assembly 4.

[0034] Embodiment 2

[0035] like Figure 2-Figure 3 and Figure 5-Figure 7 As shown, based on the above embodiment, this embodiment further provides the following contents:

[0036] The inner brush assembly 3 comprises a first gear ring 31, a first rotating cylinder 32, a guide ring 33, a first slide bar 34, an inner cylinder 35, a first pneumatic rod 36 and a rolling brush component 37, wherein the first gear ring 31 is fixed at one end of the first rotating cylinder 32, and the first rotating cylinder 32 and the first gear ring 31 are both sleeved on the outer wall of the first supporting column 23, and the bottom of the first gear ring 31 is meshed and connected with the top surface of a toothed plate 2124, and the other end of the first rotating cylinder 32 is fixed with the guide ring 33, and the outer wall of the first rotating cylinder 32 is plugged with the first slide bar 34, and one end of the first slide bar 34 is connected to the inner cylinder 35, and the inner end surface of the inner cylinder 35 is connected to the first pneumatic rod 36, and one side of the first pneumatic rod 36 is fixedly connected to the end surface of the first supporting column 23, and a rolling brush component 37 is provided through the outer wall of the inner cylinder 35, and multiple groups of rolling brush components 37 are provided along the circumferential direction of the outer wall of the inner cylinder 35, and the rolling brush component 37 is guided by the guide ring 33 to shrink close to the outer wall of the inner cylinder 35;

[0037] After the inner cylinder 35 is pushed into the outer tube 8 by the first pneumatic rod 36, the multiple groups of roller brush components 37 are separated from the guide ring 33 and unfolded at the same time, so that the roller brush components 37 are unfolded and pressed against the inner wall of the outer tube 8. After the roller brush operation is completed, the multiple groups of roller brush components 37 are simultaneously retracted by the guide ring 33 and separated from the inner wall of the outer tube 8, which improves the convenience of operation and ensures the stability of the cleaning operation.

[0038] In this embodiment, the roller brush component 37 includes an insertion rod 371, a bracket 372, a first roller brush wheel 373, a spring 374 and an inclined block 375. The insertion rod 371 is connected to the side wall of the inner cylinder 35, and one end of the insertion rod 371 extending out of the outer wall of the inner cylinder 35 is connected to the bracket 372. The bracket 372 is rotatably connected to the first roller brush wheel 373. The insertion rod 371 is inserted into the inner cylinder 35 and one end is connected to the inclined block 375. The side of the inclined block 375 close to the guide ring 33 is a sloped structure, and the outer wall of the insertion rod 371 is sleeved with a spring 374.

[0039] In this embodiment, the outer brush assembly 4 includes a second gear ring 41, a second rotating cylinder 42, a second sliding rod 43, a baffle 44, a second pneumatic rod 45 and a second rolling brush wheel 46. The second gear ring 41 is fixed to one end of the second rotating cylinder 42. The second rotating cylinder 42 and the second gear ring 41 are both sleeved on the outer wall of the second support column 24. The bottom of the second gear ring 41 is meshed and connected with the top surface of another gear plate 2124. The outer wall of the second rotating cylinder 42 is plugged with a first sliding rod 34. One end of the first sliding rod 34 is connected to a baffle 44. One side of the baffle 44 is connected to a second pneumatic rod 45. One side of the second pneumatic rod 45 is fixedly connected to the end surface of the second support column 24. One side of the side wall of the baffle 44 is rotatably connected to two second rolling brush wheels 46.

[0040] The baffle plate 44 is pushed to move toward the inner pipe 9 by the second pneumatic rod 45, and the second roller brush wheel 46 is made to fit the outer wall of the docking section of the inner pipe 9, thereby assisting the spraying lubrication and improving the convenience of the lubrication operation.

[0041] The working principle and use process of this utility model:

[0042] Press first Figure 1-Figure 7 Place the lubrication auxiliary device between the external tube 8 and the internal tube 9 that are about to be connected, then push the guide rod 214 to make the slide plate 211 slide inside the slide groove 1, so that the fixing seat 22 is in the middle position of the external tube 8 and the internal tube 9, and then rotate the positioning nut 215 to adjust the height of the support plate 213, so that the first support column 23 and the second support column 24 are all located on the same horizontal center line as the external tube 8 and the internal tube 9;

[0043] Then, the first pneumatic rod 36 and the second pneumatic rod 45 are started simultaneously, the first pneumatic rod 36 pushes the inner tube 35 to be inserted into the outer tube 8, and then the oblique receiving blocks 375 of the plurality of roller brush components 37 are separated from the guide ring 33, and under the pulling action of the spring 374, the guide rod 214 extends out of the inner tube 35, and the guide rod 214 pushes the first roller brush wheel 373 to fit the inner wall of the outer tube 8, and the second pneumatic rod 45 pushes the baffle plate 44 to fit the end face of the inner tube 9, and the second roller brush wheel 46 fits the outer wall of the docking section of the inner tube 9;

[0044] Then manually push and pull the push-pull plate 2121 back and forth, and drive the two tooth plates 2124 to move at the same time, and the two tooth plates 2124 drive the first tooth ring 31 and the second tooth ring 41 to rotate respectively, and the first rotating drum 32 and the second rotating drum 42 are engaged, so that the first roller brush wheel 373 and the second roller brush wheel 46 rotate and clean along the circumferential direction of the outer tube 8 and the inner tube 9;

[0045] Then start the water pump 6 to guide the lubricating oil in the liquid storage tank 5 into the spray pipe 7, and spray it to the outer wall of the docking section of the inner pipe 9 through the spray pipe 7, and use the rotating second roller brush wheel 46 to evenly apply the lubricating oil;

[0046] Finally, the first pneumatic rod 36 is started again to retract the inner tube 35, and the guide ring 33 stops the inclined surface of the inclined retracting block 375, so that the multiple groups of roller brush components 37 are retracted, and the second pneumatic rod 45 is started again to retract the baffle 44, so that the second roller brush wheel 46 is separated from the inner pipe 9.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0048] 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 aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pipeline joint lubrication auxiliary device for pipeline construction, characterized in that: The invention comprises a slide groove, the top surface of which is slidably provided with a docking mechanism, the docking mechanism comprises a flip assembly, a fixed seat, a first support column and a second support column, the flip assembly is slidably connected to the inside of the slide groove, the top surface of the flip assembly is fixed with a fixed seat, one side of the fixed seat is fixed with the first support column, and the other side is fixed with the second support column, the outer wall of the first support column is sleeved with an inner brush assembly, the outer wall of the second support column is sleeved with an outer brush assembly, the top surface of the fixed seat is provided with a liquid storage tank, the top surface of the liquid storage tank is connected with a water pump, one side of the water pump is connected with a spray pipe, the spray pipe is provided on the top of the second support column, the bottoms of the inner brush assembly and the outer brush assembly are meshed and connected with the flip assembly, the inner brush assembly is pushed to rotate on the first support column by the flip assembly, and the outer brush assembly is pushed to rotate on the second support column by the flip assembly.

2. The pipeline joint lubrication auxiliary device for pipeline construction according to claim 1, characterized in that: The flip assembly includes a slide plate, a push-and-turn component, a support plate, a guide rod and a positioning nut. The slide plate is slidably plugged into the inside of the slide groove. Two guide rods are connected through the inside of the support plate. The bottom ends of the guide rods are connected to the top surface of the slide plate. Two positioning nuts are threadedly sleeved on the outer wall of the guide rod. The support plate is arranged between the two positioning nuts. A push-and-turn component is arranged on the top surface of the support plate. The push-and-turn component is meshed and connected to the bottom of the inner brush assembly and the outer brush assembly.

3. The pipeline joint lubrication auxiliary device for pipeline construction according to claim 2, characterized in that: The pushing and turning component includes a push-pull plate, a connecting plate, a limit plate and a tooth plate. The push-pull plate is fixed on the top surface of the connecting plate. Two tooth plates are connected to one side of the connecting plate. The outer wall of the tooth plate is sleeved with the limit plate. The limit plate is fixed to the top surface of the supporting plate. The top surfaces of the two tooth plates are respectively meshed and connected to the bottom of the inner brush assembly and the outer brush assembly.

4. The pipeline joint lubrication auxiliary device for pipeline construction according to claim 3, characterized in that: The inner brush assembly includes a first gear ring, a first rotating cylinder, a guide ring, a first sliding rod, an inner cylinder, a first pneumatic rod and a rolling brush component, a first gear ring is fixed to one end of the first rotating cylinder, the first rotating cylinder and the first gear ring are both sleeved on the outer wall of the first support column, the bottom of the first gear ring is meshed with the top surface of a gear plate, the other end of the first rotating cylinder is fixed with a guide ring, the outer wall of the first rotating cylinder is plugged with the first sliding rod, one end of the first sliding rod is connected to the inner cylinder, the inner end surface of the inner cylinder is connected to the first pneumatic rod, one side of the first pneumatic rod is fixedly connected to the end surface of the first support column, a rolling brush component is arranged through the outer wall of the inner cylinder, and multiple groups of rolling brush components are arranged along the circumferential direction of the outer wall of the inner cylinder.

5. The pipeline joint lubrication auxiliary device for pipeline construction according to claim 4, characterized in that: The roller brush component includes an insertion rod, a bracket, a first roller brush wheel, a spring and an inclined block. The insertion rod is connected to the side wall of the inner cylinder, one end of the insertion rod extending out of the outer wall of the inner cylinder is connected to the bracket, the first roller brush wheel is rotatably connected inside the bracket, one end of the insertion rod inserted into the inner cylinder is connected to the inclined block, the side of the inclined block close to the guide ring is an inclined surface structure, and the outer wall of the insertion rod is sleeved with a spring.

6. The pipeline joint lubrication auxiliary device for pipeline construction according to claim 3, characterized in that: The outer brush assembly includes a second gear ring, a second rotating cylinder, a second sliding rod, a baffle, a second pneumatic rod and a second roller brush wheel. A second gear ring is fixed to one end of the second rotating cylinder. The second rotating cylinder and the second gear ring are both sleeved on the outer wall of the second support column. The bottom of the second gear ring is meshed and connected with the top surface of another gear plate. The first sliding rod is inserted into the outer wall of the second rotating cylinder. A baffle is connected to one end of the first sliding rod. A second pneumatic rod is connected to one side of the baffle. One side of the second pneumatic rod is fixedly connected to the end face of the second support column. One side of the baffle side wall is rotatably connected to two second roller brush wheels.

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