Butt joint equipment for municipal water supply pipeline construction

Abstract

The invention relates to butt-joint equipment for municipal water supply pipeline construction, which is applied to the field of municipal equipment construction and comprises a butt-joint device mounted between two pipelines, the butt-joint device comprises a mounting frame, two clamping parts and an auxiliary butt-joint part, the two clamping parts are mounted at the two opposite ends of the mounting frame respectively, and the auxiliary butt-joint part is mounted on the mounting frame. The clamping part comprises an arc-shaped fixed clamping block and an arc-shaped movable clamping block, a driving mechanism is installed on the arc-shaped fixed clamping block, and the arc-shaped movable clamping block can be driven by the driving mechanism to slide in a reciprocating mode along the circumferential track where the arc shape of the arc-shaped movable clamping block is located through matched arrangement of the installation frame, the arc-shaped fixed clamping block, the arc-shaped movable clamping block and the driving mechanism; according to the butt-joint equipment, the two clamping parts are arranged in the groove, so that the two clamping parts are clamped on the two adjacent pipelines placed on the inner side of the groove respectively, at the moment, the pipe opening parts, close to each other, of the two adjacent pipelines are horizontally aligned, later butt-joint operation is facilitated, disassembly and assembly operation between the butt-joint equipment and the pipelines is more convenient, and the pipeline installation efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to a butt joint device for pipeline construction, in particular to a butt joint device for municipal water supply pipeline construction applied in the field of municipal equipment construction. Background Art

[0002] Water supply pipes can be used to transport and distribute water. They function as adapters, connecting the start and end. When installing water supply pipes, it is necessary to dig a predetermined trench on the ground, and then arrange multiple pipes in the trench in sequence for docking. During the docking process, it is necessary to apply oil on the plug of the current pipe to be docked and the socket of the previous docked pipe, and slide the plug of the current pipe to be docked into the socket of the previous docked pipe to complete the docking operation.

[0003] In traditional pipe docking work, a crane is usually needed to lift the pipe to be docked, and then multiple people are required to slide the plug of the pipe to be docked into the socket of the previous docked pipe to complete the docking. However, the docking efficiency and safety are low.

[0004] In order to improve the above problems, after searching, for example, a sewage pipe auxiliary docking device disclosed in patent publication number CN217842932U is found. The device is positioned on the docked pipe by fixing a clamp block, and then the pipes to be docked are docked by moving the clamp block instead of manual work. However, the device needs to be completely placed in the groove for use. In order to facilitate excavation and backfilling, the size of the groove is generally just enough to accommodate the pipe. Therefore, the device is inconvenient to use and has limitations. For another example, the specification of patent publication number CN117515274A discloses a docking device for municipal water supply pipeline construction, including a support platform, a guide docking group, a mobile frame and an electric guide rail. The mobile frame is equipped with an electric guide rail, and the sliding part of the electric guide rail is connected to the support platform; the guide docking group includes a guide docking frame, a height limit frame, a mounting frame, a cylinder one and a cylinder two, and two guide docking frames are arranged opposite to each other in the horizontal direction, and the height limit frame is located above the two guide docking frames; the telescopic part of the cylinder two is connected to the height limit frame, and the telescopic parts of the two cylinders one are respectively connected to the two guide docking frames. The overall height of the bearing head positioning part, the guide docking frame and the height limit frame is controlled by the electric guide rail, so that the mobile frame only needs to be on the upper side of the groove, which is convenient to use. However, due to the limitation of the groove width, the docking device for pipeline construction is not convenient to be fixed to the pipeline located in the groove, and it is also not convenient to separate from the pipeline after docking, resulting in reduced docking efficiency. Therefore, a docking device for municipal water supply pipeline construction is proposed to improve the above problems. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that, due to the limitation of the groove width, the pipeline construction docking equipment is not convenient to be fixed to the pipeline located in the groove, and it is also not convenient to be separated from the pipeline after docking, resulting in reduced docking efficiency.

[0006] In order to solve the above problems, the present invention provides a docking device for municipal water supply pipeline construction, including a docking device installed between two pipelines: The docking device comprises a mounting frame, a clamping portion and an auxiliary docking portion; There are two clamping parts, which are respectively installed at opposite ends of the mounting frame. The clamping parts include an arc-shaped fixed clamping block and an arc-shaped movable clamping block. The arc-shaped fixed clamping block is fixed to the mounting frame. Openings are provided on opposite sides of the arc-shaped fixed clamping block. There are two arc-shaped movable clamping blocks, and the two arc-shaped movable clamping blocks are respectively slidably installed on the inner sides of the two openings. A driving mechanism is installed on the arc-shaped fixed card block to drive the arc-shaped movable card block to slide back and forth along the circular track where the arc is located. The inner walls of the arc-shaped fixed card block and the arc-shaped movable card block are located on the same circumferential surface, and multiple balls are movably installed on the inner walls of the arc-shaped fixed card block and the arc-shaped movable card block. The auxiliary docking portion is located between the two clamping portions and is installed at the lower end of the mounting frame so that the two pipes can be docked.

[0007] In the above-mentioned docking equipment for municipal water supply pipeline construction, through the coordinated arrangement of the mounting frame, the arc-shaped fixed clamping block, the arc-shaped movable clamping block, the driving mechanism and the auxiliary docking part, the driving mechanism can be used to drive the arc-shaped movable clamping block to slide back and forth along the circular trajectory where its arc is located, so that the two clamping parts are respectively clamped on the two adjacent pipes placed on the inner side of the groove, so that the pipe mouth parts of the two adjacent pipes close to each other are horizontally aligned, and then the auxiliary docking part is used to assist the two pipes in docking. Compared with the prior art, the disassembly and assembly operations between the docking equipment and the pipeline in this scheme are more convenient, which greatly improves the pipeline installation efficiency.

[0008] As a further supplement to the present application, a limit slider is integrally provided on the side end of the arc-shaped movable clamping block, and a limit sliding groove which slidably cooperates with the limit slider is provided on the arc-shaped fixed clamping block.

[0009] As a further supplement to the present application, the driving mechanism includes an air pump and an arc-shaped air pipe; The air pump is installed in the middle of the arc-shaped fixed card block, two arc-shaped air pipes are provided, and the two arc-shaped air pipes are both installed at the output end of the air pump, and an air cavity is provided on the inner side of the arc-shaped moving card block along its arc direction, and the two arc-shaped air pipes respectively slide and extend into the air cavities on the inner sides of the two arc-shaped moving card blocks; the air pump blows or inhales air into the air cavity through the arc-shaped air pipe, so that the arc-shaped moving card block slides along the circular trajectory of its arc under the action of the air pressure difference.

[0010] As a further supplement to the present application, a bellows sleeve is fixed between the arc-shaped fixed clamp block and the arc-shaped movable clamp block, and the bellows sleeve is arranged on the outside of the arc-shaped air pipe to prevent dust and other impurities from entering and reducing the air tightness between the arc-shaped movable clamp block and the arc-shaped air pipe. A protective cover plate covering the opening is installed on the outer surface of the arc-shaped fixed clamp block, which effectively prevents accidental pinching incidents during the contraction of the arc-shaped movable clamp block.

[0011] As a further supplement to the present application, the balls on the arc-shaped movable clamping block are arranged in at least two rows along the horizontal direction, which can ensure that the central axis of the pipe part clamped by the clamping part coincides with the central axis of the clamping part, thereby ensuring that the parts of the two pipes close to each other are horizontally aligned.

[0012] As a further supplement to the present application, a plurality of ball bearings are also movably installed on the outer surface of the arc-shaped movable clamp block; in the process of the arc-shaped movable clamp block sliding to the lower end of the pipe in contact with the pipe, the ball bearings installed on the outer surface of the arc-shaped movable clamp block can reduce the friction between the inner wall of the groove, making the pipe connection smoother.

[0013] As a further supplement to the present application, the auxiliary docking portion includes a mounting frame, a friction wheel and a drive motor; The mounting frame is installed at the lower end of the mounting bracket, the friction wheel is rotatably installed on the inner side of the mounting frame, the driving motor is installed on the mounting frame, and the output end of the driving motor is coaxially fixed with the friction wheel; after the two pipes are horizontally aligned by using two clamping parts, the friction wheel is driven to rotate by the driving motor to move the pipe whose other end is not connected to other pipes toward the pipe whose other end is connected to other pipes, thereby completing the docking between the two pipes.

[0014] As a further supplement to the present application, a lifting drive device is installed on the mounting frame, an output end of the lifting drive device is fixed to the mounting frame, and a handle is installed on the upper end of the mounting frame.

[0015] As another improvement of the present application, the auxiliary docking part also includes a friction plate, on which a guide slide rail is installed, and the friction plate is horizontally slidably connected to the mounting frame through the guide slide rail, and the bottom of the friction wheel is in contact with the friction plate; the mounting frame is driven to descend as a whole by a lifting drive device until the bottom end of the friction plate squeezes the surface of the pipe, and the friction wheel is driven to rotate by a driving motor. The friction plate slides horizontally along the mounting frame under the action of the friction wheel, and the friction force between the friction plate and the pipe is used to make the pipe move horizontally synchronously with the friction plate. Compared with the point contact between the friction wheel and the pipe, the line contact between the friction plate and the pipe can increase the contact area, thereby dispersing the local pressure on the pipe and better protecting the pipe.

[0016] In summary, through the coordinated arrangement of the mounting frame, the arc-shaped fixed card block, the arc-shaped movable card block, the driving mechanism and the auxiliary docking portion, the arc-shaped fixed card blocks of the two clamping portions are respectively fitted on two adjacent pipes placed on the inner side of the groove, and an air pump is used to blow or inhale air into the air cavity through the arc-shaped air pipe, so that the arc-shaped movable card block slides along the circular trajectory of its arc under the action of the air pressure difference. When the air pump blows air into the air cavity through the arc-shaped air pipe, the arc-shaped movable card block slides along the circular trajectory of its arc toward the side away from the arc-shaped fixed card block under the action of the air pressure difference until the arc-shaped movable card block fits the pipe and slides to the lower end of the pipe. At this time, the two clamping portions The friction plate is specifically connected to two adjacent pipes placed on the inner side of the groove so that the adjacent pipe openings of the two adjacent pipes are horizontally aligned; thereafter, the lifting drive device is used to drive the installation frame to descend as a whole until the bottom end of the friction plate squeezes the surface of the pipe, and the driving motor is used to drive the friction wheel to rotate. The friction plate slides horizontally along the installation frame under the action of the friction wheel, and the friction force between the friction plate and the pipe is used to make the pipe move horizontally synchronously with the friction plate. Compared with the point contact between the friction wheel and the pipe, the line contact between the friction plate and the pipe can increase the contact area, thereby dispersing the local pressure on the pipe and better protecting the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure in the docking state in the first embodiment of the present application; Figure 2 This is a schematic diagram of the three-dimensional structure of the arc-shaped movable clamp block of the docking device in the first embodiment of the present application in the stored state; Figure 3 This is a schematic diagram of the three-dimensional structure of the first embodiment of the docking device of the present application in a state where the arc-shaped movable clamping block is extended; Figure 4 This is a schematic diagram of a partially disassembled three-dimensional structure of a clamping portion of the first embodiment of the present application; Figure 5 This is a schematic diagram of a partial cross-section structure of a clamping portion of the first embodiment of the present application; Figure 6 This is a schematic diagram of the overall three-dimensional structure in the docking state in the second embodiment of the present application; Figure 7 This is a schematic diagram of the planar structure of the second implementation mode of the present application; Figure 8 It is a schematic diagram of the three-dimensional structure of the auxiliary docking part of the second embodiment of the present application.

[0018] Description of the numbers in the figure: 1. Pipeline; 2. Docking device; 21. Mounting frame; 22. Clamping part; 221. Arc-shaped fixed clamping block; 222. Arc-shaped movable clamping block; 22201. Air cavity; 223. Air pump; 224. Arc-shaped air pipe; 225. Limiting slider; 226. Limiting slide groove; 227. Bellows sleeve; 228. Protective cover plate; 229. Ball bearing; 23. Auxiliary docking part; 231. Mounting frame; 232. Friction wheel; 233. Drive motor; 234. Friction plate; 235. Guide rail; 24. Lifting drive device; 25. Handle. DETAILED DESCRIPTION

[0019] The following describes two implementation modes of the present application in detail with reference to the accompanying drawings.

[0020] The first implementation method: The present invention provides a docking device for municipal water supply pipeline construction, please refer to Figure 1-5 , comprising a docking device 2 installed between two pipelines 1.

[0021] Specifically, the docking device 2 includes a mounting frame 21, a clamping portion 22 and an auxiliary docking portion 23. Two clamping portions 22 are provided, and the two clamping portions 22 are respectively installed at opposite ends of the mounting frame 21. The clamping portion 22 includes an arc-shaped fixed clamping block 221 and an arc-shaped movable clamping block 222. The arc-shaped fixed clamping block 221 is fixed to the mounting frame 21. Openings are provided on opposite sides of the arc-shaped fixed clamping block 221. Two arc-shaped movable clamping blocks 222 are provided, and the two arc-shaped movable clamping blocks 222 are respectively slidably installed on the inner sides of the two openings. A driving mechanism for driving the arc-shaped movable clamping block 222 to slide back and forth along the circular trajectory where the arc is located is installed on the arc-shaped fixed clamping block 221. The inner walls of the arc-shaped fixed clamping block 221 and the arc-shaped movable clamping block 222 are located on the same circumferential surface, and a plurality of balls 229 are movably installed on the inner walls of the arc-shaped fixed clamping block 221 and the arc-shaped movable clamping block 222.

[0022] The docking device for municipal water supply pipeline construction is arranged by the coordination of the mounting frame 21, the arc-shaped fixed clamp block 221, the arc-shaped movable clamp block 222 and the driving mechanism. The driving mechanism can be used to drive the arc-shaped movable clamp block 222 to slide back and forth along the circular trajectory of its arc, so that the two clamping parts 22 are respectively clamped on the two adjacent pipes 1 placed on the inner side of the groove, so that the pipe mouth parts of the two adjacent pipes 1 that are close to each other are horizontally aligned, which is convenient for the subsequent docking operation, and the disassembly and assembly operations between the docking device and the pipeline are more convenient, which greatly improves the efficiency of pipeline installation.

[0023] The side end of the arc-shaped movable clamping block 222 is integrally provided with a limit sliding block 225 , and the arc-shaped fixed clamping block 221 is provided with a limit sliding groove 226 that slidably cooperates with the limit sliding block 225 .

[0024] Among them, regarding the driving mechanism, specifically, Figure 4 and Figure 5 As shown, the driving mechanism includes an air pump 223 and an arc-shaped air pipe 224. The air pump 223 is installed in the middle of the arc-shaped fixed block 221. Two arc-shaped air pipes 224 are provided, and the two arc-shaped air pipes 224 are both installed at the output end of the air pump 223. An air cavity 22201 is provided on the inner side of the arc-shaped movable block 222 along its arc direction. The two arc-shaped air pipes 224 slide and extend into the air cavities 22201 on the inner sides of the two arc-shaped movable blocks 222 respectively.

[0025] Based on the coordinated arrangement of the above structure, the air pump 223 blows or inhales air into the air cavity 22201 through the arc-shaped air pipe 224, so that the arc-shaped movable block 222 slides along the circular trajectory of its arc under the action of the air pressure difference. Specifically, when the air pump 223 blows air into the air cavity 22201 through the arc-shaped air pipe 224, the arc-shaped movable block 222 slides along the circular trajectory of its arc toward the side away from the arc-shaped fixed block 221 under the action of the air pressure difference until the arc-shaped movable block 222 slides to the lower end of the pipe 1 in contact with the pipe 1. At this time, the two clamping parts 22 are respectively clamped on the two adjacent pipes 1 placed on the inner side of the groove, so that the pipe mouth parts of the two adjacent pipes 1 that are close to each other are horizontally aligned; when the air pump 223 sucks air into the air cavity 22201 through the arc-shaped air pipe 224, the arc-shaped movable clamping block 222 slides along the circular trajectory of its arc toward the side close to the arc-shaped fixed clamping block 221 under the action of the air pressure difference until the arc-shaped movable clamping block 222 is completely located on the upper side of the pipe 1. At this time, the docking device can be easily removed from between the two adjacent pipes 1.

[0026] Among them, a bellows sleeve 227 is fixed between the arc-shaped fixed clamp block 221 and the arc-shaped movable clamp block 222, and the bellows sleeve 227 is sleeved on the outside of the arc-shaped air pipe 224; to prevent dust and other impurities from entering and reducing the air tightness between the arc-shaped movable clamp block 222 and the arc-shaped air pipe 224, a protective cover plate 228 covering the opening is installed on the outer surface of the arc-shaped fixed clamp block 221, which effectively prevents accidental pinching during the contraction of the arc-shaped movable clamp block 222.

[0027] In order to ensure that the central axis of the portion of the pipe 1 clamped by the clamping portion 22 coincides with the central axis of the clamping portion 22, thereby ensuring that the portions of the two pipes 1 close to each other are horizontally aligned, the balls 229 on the arc-shaped movable clamping block 222 are arranged in at least two rows in the horizontal direction.

[0028] In addition, a plurality of balls 229 are also movably installed on the outer surface of the arc-shaped movable clamp block 222. When the arc-shaped movable clamp block 222 slides to the lower end of the pipe 1 in contact with the pipe 1, the balls 229 installed on the outer surface of the arc-shaped movable clamp block 222 can reduce the friction between the inner wall of the groove, making the pipe 1 clamped more smoothly.

[0029] The auxiliary docking portion 23 is located between the two clamping portions 22 and is installed at the lower end of the mounting frame 21 so that the two pipes 1 can be docked. Regarding the auxiliary docking portion 23, specifically, Figure 3 As shown, the auxiliary docking part 23 includes a mounting frame 231, a friction wheel 232 and a driving motor 233. The mounting frame 231 is mounted on the lower end of the mounting frame 21, the friction wheel 232 is rotatably mounted on the inner side of the mounting frame 231, the driving motor 233 is mounted on the mounting frame 231, and the output end of the driving motor 233 is coaxially fixed with the friction wheel 232.

[0030] Based on the matching arrangement of the above structure, after the two pipes 1 are horizontally aligned using the two clamping parts 22, the friction wheel 232 is driven to rotate by the driving motor 233 to move the pipe 1 whose other end is not connected to other pipes toward the pipe 1 whose other end is connected to other pipes, thereby completing the docking between the two pipes 1.

[0031] Among them, a lifting drive device 24 is installed on the mounting frame 21. The lifting drive device 24 can adopt any lifting drive device in the existing technology, such as an electric push rod. The output end of the lifting drive device 24 is fixed to the mounting frame 231, and a handle 25 is installed at the upper end of the mounting frame 21 for easy holding.

[0032] Working principle: The arc-shaped fixed clamping blocks 221 of the two clamping parts 22 are respectively fitted on the two adjacent pipes 1 placed on the inner side of the groove (note that the auxiliary docking part 23 is placed toward the side of the pipe 1 that is not connected to other pipes at the other end), and when the air pump 223 is used to blow air into the air cavity 22201 through the arc-shaped air pipe 224, the arc-shaped movable clamping block 222 slides along the circular trajectory of its arc toward the side away from the arc-shaped fixed clamping block 221 under the action of the air pressure difference, until the arc-shaped movable clamping block 222 slides in contact with the pipe 1 to the lower end of the pipe 1. At this time, the two clamping parts 22 are respectively clamped on the two adjacent pipes 1 placed on the inner side of the groove, so that the pipe openings of the two adjacent pipes 1 that are close to each other are horizontally aligned; thereafter, the lifting drive device 24 is used to The driving installation frame 231 is lowered as a whole until the bottom end of the friction plate 234 squeezes the surface of the pipe 1. After the two pipes 1 are horizontally aligned by using the two clamping parts 22, the driving motor 233 is used to drive the friction wheel 232 to rotate, and the pipe 1 that is not connected to other pipes at the other end is moved toward the pipe 1 that is connected to other pipes at the other end, thereby completing the docking between the two pipes 1; after the docking is completed, the air pump 223 is used to suck air into the air cavity 22201 through the arc-shaped air pipe 224, and the arc-shaped movable block 222 slides along the circular trajectory of its arc toward the side close to the arc-shaped fixed block 221 under the action of the air pressure difference until the arc-shaped movable block 222 is completely located on the upper side of the pipe 1. At this time, the docking device can be easily removed from between the two adjacent pipes 1.

[0033] Second implementation method: This embodiment is based on the embodiment 1, and the following structure is added, so that the present application has the function of reducing the damage to the pipeline 1 during the docking process, and the specific configuration is as follows: Figure 6-8 As shown, the auxiliary docking portion 23 also includes a friction plate 234 , on which a guide rail 235 is installed. The friction plate 234 is horizontally slidably connected to the mounting frame 231 via the guide rail 235 , and the bottom of the friction wheel 232 is in contact with the friction plate 234 .

[0034] Based on the matching arrangement of the above structure, after the two pipes 1 are horizontally aligned by using the two clamping parts 22, the lifting drive device 24 is used to drive the installation frame 231 to descend as a whole until the bottom end of the friction plate 234 squeezes the surface of the pipe 1. At this time, the driving motor 233 is used to drive the friction wheel 232 to rotate. The friction plate 234 slides horizontally along the installation frame 231 under the action of the friction wheel 232, and the friction force between the friction plate 234 and the pipe 1 is used to make the pipe 1 move horizontally synchronously with the friction plate 234. Specifically, the pipe 1 whose other end is not connected to other pipes moves toward the pipe 1 whose other end is connected to other pipes, thereby completing the docking between the two pipes 1.

[0035] Compared with the point contact between the friction wheel 232 and the pipeline 1 , the line contact between the friction plate 234 and the pipeline 1 can increase the contact area, thereby dispersing the local pressure on the pipeline 1 and better protecting the pipeline 1 .

[0036] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A docking device for municipal water supply pipeline construction, comprising a docking device (2) installed between two pipelines (1), characterized in that: The docking device (2) comprises a mounting frame (21), a clamping portion (22) and an auxiliary docking portion (23); Two clamping parts (22) are provided, and the two clamping parts (22) are respectively mounted on opposite ends of the mounting frame (21), the clamping part (22) comprises an arc-shaped fixed clamping block (221) and an arc-shaped movable clamping block (222), the arc-shaped fixed clamping block (221) is fixed to the mounting frame (21), openings are provided on opposite sides of the arc-shaped fixed clamping block (221), two arc-shaped movable clamping blocks (222) are provided, and the two arc-shaped movable clamping blocks (222) are respectively slidably mounted on the inner sides of the two openings; A driving mechanism is installed on the arc-shaped fixed card block (221) to drive the arc-shaped movable card block (222) to slide back and forth along the circumferential track of the arc; the inner walls of the arc-shaped fixed card block (221) and the arc-shaped movable card block (222) are located on the same circumferential surface, and a plurality of balls (229) are movably installed on the inner walls of the arc-shaped fixed card block (221) and the arc-shaped movable card block (222); The auxiliary docking portion (23) is located between the two clamping portions (22) and is mounted on the lower end of the mounting frame (21) so as to enable the two pipes (1) to be docked.

2. A docking device for municipal water supply pipeline construction according to claim 1, characterized in that: A limit slide block (225) is integrally provided at the side end of the arc-shaped movable clamping block (222), and a limit slide groove (226) slidably matched with the limit slide block (225) is provided on the arc-shaped fixed clamping block (221).

3. A docking device for municipal water supply pipeline construction according to claim 1, characterized in that: The driving mechanism comprises an air pump (223) and an arc-shaped air pipe (224); The air pump (223) is installed in the middle of the arc-shaped fixed clamp block (221), two arc-shaped air pipes (224) are provided, and the two arc-shaped air pipes (224) are both installed at the output end of the air pump (223), and an air cavity (22201) is provided on the inner side of the arc-shaped movable clamp block (222) along its arc direction, and the two arc-shaped air pipes (224) respectively slide and extend into the air cavities (22201) on the inner sides of the two arc-shaped movable clamp blocks (222).

4. A docking device for municipal water supply pipeline construction according to claim 3, characterized in that: A bellows sleeve (227) is fixed between the arc-shaped fixed clamp block (221) and the arc-shaped movable clamp block (222); the bellows sleeve (227) is sleeved on the outside of the arc-shaped air pipe (224); and a protective cover plate (228) covering the opening is installed on the outer surface of the arc-shaped fixed clamp block (221).

5. The municipal water supply pipeline construction docking equipment according to claim 1, characterized in that: The balls (229) on the arc-shaped movable clamping block (222) are arranged in at least two rows along the horizontal direction.

6. A docking device for municipal water supply pipeline construction according to claim 1, characterized in that: A plurality of balls (229) are also movably mounted on the outer surface of the arc-shaped movable clamping block (222).

7. A docking device for municipal water supply pipeline construction according to claim 1, characterized in that: The auxiliary docking portion (23) comprises a mounting frame (231), a friction wheel (232) and a driving motor (233); The mounting frame (231) is mounted on the lower end of the mounting frame (21); the friction wheel (232) is rotatably mounted on the inner side of the mounting frame (231); the drive motor (233) is mounted on the mounting frame (231); and the output end of the drive motor (233) is coaxially fixed with the friction wheel (232).

8. A docking device for municipal water supply pipeline construction according to claim 7, characterized in that: A lifting drive device (24) is installed on the mounting frame (21); an output end of the lifting drive device (24) is fixed to the mounting frame (231); and a handle (25) is installed on the upper end of the mounting frame (21).

9. A docking device for municipal water supply pipeline construction according to claim 8, characterized in that: The auxiliary docking portion (23) further comprises a friction plate (234), a guide rail (235) being mounted on the friction plate (234), the friction plate (234) being horizontally slidably connected to the mounting frame (231) via the guide rail (235), and the bottom of the friction wheel (232) being in contact with the friction plate (234).

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