Building drainage pipe connecting clamp capable of being rapidly disassembled and assembled

Abstract

The utility model relates to the technical field of buildings, and discloses a building drain pipe connecting clamp capable of being quickly disassembled and assembled, which comprises a fixed clamp ring I and a fixed clamp ring II, a rotating groove is formed in the outer wall of the fixed clamp ring I, a connecting block is fixedly connected to the outer wall of the fixed clamp ring II, a rotating column is fixedly connected to the inside of the connecting block, and the rotating column is fixedly connected to the outer wall of the fixed clamp ring II. The two ends of the rotating column are rotationally connected to the inner wall of the rotating groove, the outer wall of the first fixing clamp ring is attached to the outer wall of the second fixing clamp ring, and the outer wall of the first fixing clamp ring is fixedly connected with a first fixing block. According to the utility model, the fixing clamp ring I, the fixing clamp ring II and the pipeline are disassembled and assembled through the fixing assembly, so that the effect of quickly connecting and disassembling the drainage pipe is achieved, the construction and maintenance can be accelerated, the construction period is shortened, the influence on life and operation is reduced, emergency treatment is facilitated, and the operation threshold is also lowered; and the pipeline maintenance is more efficient and convenient.

Description

Technical Field

[0001] This utility model relates to the field of building technology, and in particular to quick-release and detachable building drainage pipe connection clamps. Background Technology

[0002] Building drainage pipe connection clamps are widely used in various drainage systems such as residential buildings, commercial buildings, and municipal engineering projects. As a core component of pipe connection, their application background stems from the need for reliable connection in the construction and maintenance of drainage systems. During pipe laying, it is necessary to achieve tight connection of different pipe diameters or sections to ensure smooth drainage and leak prevention. During later maintenance, renovation, or replacement, it is necessary to adapt to efficient operation to improve project progress. At the same time, it is necessary to adapt to complex working conditions such as humidity and pressure to provide connection support for the stable operation of drainage systems.

[0003] Existing technologies require specialized tools such as wrenches to disassemble and assemble building drainage pipe connection clamps using bolts. The operation process is cumbersome and inconvenient in confined spaces. Furthermore, humid environments can easily cause bolts to rust and become stuck. This not only prolongs the disassembly and assembly time and reduces construction and maintenance efficiency, but may also affect the connection stability due to thread wear, increasing maintenance difficulty and operational barriers. Therefore, a building drainage pipe connection clamp that allows for quick disassembly and assembly is proposed. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a quick-release building drainage pipe connection clamp, which aims to improve the existing technology of disassembling and assembling building drainage pipe connection clamps by bolts. This process is cumbersome, inconvenient to operate in confined spaces, prolongs disassembly and assembly time, reduces construction and maintenance efficiency, and increases maintenance difficulty and operational threshold.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-release building drainage pipe connecting clamp, including a first fixing clamp ring and a second fixing clamp ring. The outer wall of the first fixing clamp ring has a rotating groove. The outer wall of the second fixing clamp ring is fixedly connected to a connecting block. The inside of the connecting block is fixedly connected to a rotating column. The two ends of the rotating column are rotatably connected to the inner wall of the rotating groove. The outer wall of the first fixing clamp ring and the outer wall of the second fixing clamp ring are in contact with each other. The outer wall of the first fixing clamp ring is fixedly connected to a first fixing block. The outer wall of the second fixing clamp ring is fixedly connected to a second fixing block. The outer wall of the second fixing block is in contact with the outer wall of the first fixing block. The inside of the first fixing block is slidably connected to a fixing column. The outer wall of the second fixing column is slidably connected to the inside of the second fixing block. The outer wall of the second fixing block is fixedly connected to a first limiting column. The end of the first limiting column near the first fixing column abuts against the outer wall of the first fixing block. The outer wall of the first fixing column has a through groove. The outer wall of the second fixing block is provided with a fixing component.

[0006] Preferably, the through groove is circular or non-circular in shape.

[0007] Preferably, when the shape of the through groove is non-circular, the fixing component includes a circular block, a limiting post two fixedly connected to the outer end of the circular block, the outer wall of the limiting post two slidably connected to the inner wall of the through groove, a limiting block fixedly connected to the outer wall of the limiting post two, a cylinder one slidably connected to the outer wall of the limiting post two, the outer end of the cylinder one having the through groove two, the inner wall of the cylinder one having a slot one, the outer wall of the limiting block slidably connected to the inner wall of the through groove two, the outer wall of the limiting block slidably connected to the inner wall of the slot one, a sliding post one slidably connected to the inside of the cylinder one, a stop block fixedly connected to the outer wall of the sliding post one, and a spring one slidably connected to the outer wall of the sliding post one, one end of the spring one fixedly connected to the inner wall of the cylinder one, and the other end of the spring one connected to the end of the stop block near the sliding post one.

[0008] Preferably, the outer wall of the first circular block abuts against the outer wall of the second fixing block, and the outer end of the abutting block abuts against the end of the second limiting post away from the first circular block.

[0009] Preferably, when the through groove one is circular, the fixing component includes a circular block two, a cylinder is fixedly connected to the outer end of the circular block two, a conical block is fixedly connected to the other end of the cylinder, the outer wall of the conical block is slidably connected to the inner wall of the through groove one, a cylinder two is slidably connected to the outer wall of the conical block, a sliding groove is provided on the inner wall of the cylinder two, a sliding column two is slidably connected to the inside of the cylinder two, an inclined plate is fixedly connected to the outer wall of the sliding column two, the outer wall of the inclined plate is slidably connected to the outer wall of the conical block, a limit piece is fixedly connected to the outer wall of the sliding column two, and a spring two is slidably connected to the outer wall of the sliding column two, one end of the spring two is fixedly connected to the inner wall of the sliding groove, and the other end of the spring two is fixedly connected to the outer wall of the inclined plate.

[0010] Preferably, the outer wall of the second cylinder abuts against the outer wall of the second fixed block, the outer wall of the second circular block abuts against the outer wall of the second fixed block, and the outer wall of the inclined card block is slidably connected to the inner wall of the sliding groove.

[0011] Preferably, the outer wall of the first circular block is fixedly connected to an anti-slip block one, and the outer wall of the first cylindrical block is fixedly connected to an anti-slip block two.

[0012] Preferably, the outer wall of the first cylinder is provided with a second anti-slip groove, and the outer wall of the first circular block is provided with a first anti-slip groove.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the fixing components enable the disassembly and installation of the fixing clamp ring one and the fixing clamp ring two and the pipe, thereby achieving the effect of quick connection and disassembly of the drainage pipe. This can speed up construction and maintenance, shorten the construction period, reduce the impact on daily life and operation, facilitate emergency handling, and lower the operation threshold, making pipeline maintenance more efficient and convenient.

[0015] 2. In this utility model, by using the anti-slip groove 2 on the outer wall of the cylinder and the anti-slip groove 1 on the outer wall of the block, hand slippage can be effectively prevented during locking or installation operations, making it easier for operators to apply force stably, thereby improving the convenience and efficiency of operation during locking and installation, and ensuring the smoothness of disassembly and assembly. Attached Figure Description

[0016] Figure 1 This is a perspective view of the quick-assembly and disassembly building drainage pipe connecting clamp proposed in this utility model;

[0017] Figure 2 This is a partial structural diagram of the fixing block of the quick-assembly and disassembly building drainage pipe connecting clamp proposed in this utility model.

[0018] Figure 3 This is a cross-sectional view of the internal structure of the cylindrical component of the quick-assembly and disassembly building drainage pipe connecting clamp proposed in this utility model.

[0019] Figure 4 This is a partial structural diagram of the fixing clamp ring of the quick-assembly and disassembly building drainage pipe connection clamp proposed in this utility model;

[0020] Figure 5 This is a cross-sectional view of the internal structure of the cylindrical part of the quick-assembly and disassembly building drainage pipe connecting clamp proposed in this utility model.

[0021] Figure 6 This is a partial structural diagram of the anti-sliding block of the quick-assembly and disassembly building drainage pipe connecting clamp proposed in this utility model.

[0022] Figure 7 This is a partial structural diagram of the circular block of the quick-assembly and disassembly building drainage pipe connecting clamp proposed in this utility model.

[0023] Legend:

[0024] 1. Fixed clamp ring one; 2. Rotating groove; 3. Rotating column; 4. Connecting block; 5. Fixed clamp ring two; 6. Fixed block one; 7. Fixed block two; 8. Limiting column one; 9. Fixed column; 10. Through groove one; 1101. Round block one; 1102. Limiting column two; 1103. Limiting block; 1104. Round cylinder one; 1105. Clamping groove one; 1106. Through groove two; 1107. Sliding column one; 11 08. Spring 1; 1109. Stop block; 1111. Round block 2; 1112. Cylinder; 1113. Conical block; 1114. Cylindrical block 2; 1115. Sliding column 2; 1116. Inclined block; 1117. Limiting piece; 1118. Spring 2; 1119. Sliding groove; 1201. Anti-slip groove 1; 1202. Anti-slip groove 2; 1211. Anti-slip block 1; 1212. Anti-slip block 2. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1:

[0027] Reference Figure 1 - Figure 5 This utility model provides an embodiment of a quick-release building drainage pipe connecting clamp, including a fixing clamp ring 1 and a fixing clamp ring 2 5. The outer wall of the fixing clamp ring 1 has a rotating groove 2. The outer wall of the fixing clamp ring 2 5 is fixedly connected to a connecting block 4. The inside of the connecting block 4 is fixedly connected to a rotating column 3. The two ends of the rotating column 3 are rotatably connected to the inner wall of the rotating groove 2. The outer wall of the fixing clamp ring 1 is in contact with the outer wall of the fixing clamp ring 2 5. The outer wall of the fixing clamp ring 1 is fixedly connected to a fixing block 6. The outer wall of the fixing clamp ring 2 5 is fixedly connected to a fixing block 2 7. The outer wall of the fixing block 2 7 is in contact with the outer wall of the fixing block 1 6. The inside of the fixing block 1 6 is slidably connected to a fixing column 9. The outer wall of the fixing column 9 is slidably connected to the inside of the fixing block 2 7. The outer wall of the fixing column 9 is fixedly connected to a limiting column 8. One end of the limiting column 8 near the fixing column 9 abuts against the outer wall of the fixing block 1 6. The outer wall of the fixing column 9 has a through groove 10. The outer wall of the fixing block 2 7 is provided with a fixing component.

[0028] Specifically, the fixed clamp ring 1 and the fixed clamp ring 2 5 are opened and closed by the rotation of the rotating column 3 on the connecting block 4 in the rotating groove 2. When closed, the fixed clamp ring 1 and the fixed clamp ring 2 5 wrap around the drain pipe, the fixed block 1 6 and the fixed block 2 7 are in contact, the fixed column 9 penetrates into the fixed block 1 6 and the fixed block 2 7 to complete the initial positioning, the limiting column 1 8 restricts the movement of the fixed column 9, and then the fixed component slides into the inner wall of the through groove 10 to fix the fixed clamp ring 2 5 and the fixed clamp ring 1 1, so as to achieve the effect of quick connection and disassembly.

[0029] Reference Figure 1 - Figure 3 The through groove 10 can be circular or non-circular. When the through groove 10 is non-circular, the fixing assembly includes a circular block 1101. The outer end of the circular block 1101 is fixedly connected to a limiting post 1102. The outer wall of the limiting post 1102 is slidably connected to the inner wall of the through groove 10. The outer wall of the limiting post 1102 is fixedly connected to a limiting block 1103. A cylindrical cylinder 1104 is slidably connected to the outer wall of the limiting post 1102. The outer end of the cylindrical cylinder 1104 has a through groove 1106, and the inner wall of the cylindrical cylinder 1104 has a slot 110. 5. The outer wall of the limiting block 1103 is slidably connected to the inner wall of the through groove 1106. The outer wall of the limiting block 1103 is slidably connected to the inner wall of the slot 1105. The inner wall of the cylinder 1104 is slidably connected to the sliding column 1107. The outer wall of the sliding column 1107 is fixedly connected to the abutment 1109. The outer wall of the sliding column 1107 is slidably connected to the spring 1108. One end of the spring 1108 is fixedly connected to the inner wall of the cylinder 1104. The other end of the spring 1108 is connected to the end of the abutment 1109 near the sliding column 1107.

[0030] The outer wall of the circular block 1101 abuts against the outer wall of the fixed block 2 7, and the outer end of the abutting block 1109 abuts against the end of the limiting post 2 1102 away from the circular block 1101.

[0031] Specifically, the operation of the fixing component in this embodiment is as follows: First, the circular block 1101 drives the limiting post 1102 to slide into the inner wall of the through groove 10. Then, the circular block 1101 drives the limiting post 1102 to slide into the inner wall of the cylinder 1104. During the process of sliding into the inner wall of the cylinder 1104, the outer wall of the limiting block 1103 will slide past the inner wall of the through groove 1106. At the same time, the end of the abutment 1109 will contact the end of the limiting post 1102 and cause the abutment 1109 to move outward under force, thereby causing the sliding post 1107 to move outward and slide on the inner wall of the cylinder 1104. During this process, the spring 1108 will also be compressed under force. Then, the circular block 1101 is rotated 90 degrees. After the rotation, it no longer provides force to the cylinder 1104. The force causes the spring 1108, which is in a contracted state, to rebound and reset. The resetting movement of the abutment block 1109 pushes the limiting post 1102, causing the limiting block 1103 to slide into the inner wall of the slot 1105, thereby quickly fixing the fixing clamp ring 1 and the fixing clamp ring 2 5, and realizing the installation of the pipeline. When disassembling, the sliding post 1107 moves outward, causing the abutment block 1109 to move outward and no longer push the limiting post 1102. Then, by moving the limiting post 1102, the limiting block 1103 moves and slides out from the inner wall of the slot 1105. After that, it is rotated 90 degrees. Finally, the circular block 1101 drives the limiting post 1102 to slide out from the inner wall of the cylinder 1104 and the inner wall of the through groove 10, thus realizing quick disassembly.

[0032] Example 2:

[0033] Reference Figure 4 - Figure 5 This embodiment provides another structure compared to the above embodiments: when the through groove 10 is circular, the fixing assembly includes a circular block 1111, the outer end of the circular block 1111 is fixedly connected to a cylinder 1112, the other end of the cylinder 1112 is fixedly connected to a conical block 1113, the outer wall of the conical block 1113 is slidably connected to the inner wall of the through groove 10, the outer wall of the conical block 1113 is slidably connected to a cylindrical cylinder 1114, the inner wall of the cylindrical cylinder 1114 is provided with a sliding groove 1119, and the cylindrical cylinder 1114... The sliding post 1115 is internally slidably connected. The outer wall of the sliding post 1115 is fixedly connected to the inclined block 1116. The outer wall of the inclined block 1116 is slidably connected to the outer wall of the conical block 1113. The outer wall of the sliding post 1115 is fixedly connected to the limiting piece 1117. The outer wall of the sliding post 1115 is slidably connected to the spring 1118. One end of the spring 1118 is fixedly connected to the inner wall of the sliding groove 1119, and the other end of the spring 1118 is fixedly connected to the outer wall of the inclined block 1116.

[0034] The outer wall of cylinder 2 1114 abuts against the outer wall of fixed block 2 7, the outer wall of round block 2 1111 abuts against the outer wall of fixed block 2 7, and the outer wall of inclined block 1116 is slidably connected to the inner wall of sliding groove 1119.

[0035] Specifically, the operation of the fixing component in this embodiment is as follows: the conical block 1113 is driven to slide through the inner wall of the through groove 10 by the circular block 1111 and the cylinder 1112. Then, the circular block 1111 continues to move, causing the conical block 1113 to slide into the inner wall of the cylinder 1114. During the process of the conical block 1113 sliding into the inner wall of the cylinder 1114, the conical block 1113 will contact the outer wall of the inclined plate block 1116, causing the inclined plate block 1116 to move inward under force and slide on the inner wall of the sliding groove 1119, and causing the sliding column 1115 to move outward and slide inside the cylinder 1114. At the same time, the spring 1118 is forced to contract and slide on the outer wall of the sliding column 1115. When the outer wall of the conical block 1113 has completely slid past the outer wall of the inclined plate block 1116, the inclined plate... The face block 1116 will no longer be under force, which will cause the spring 1118, which is in a contracted state, to rebound and push the inclined face block 1116 to move inward, thereby limiting the longitudinal movement of the conical block 1113. This will enable the quick installation of the fixing clamp ring 1 and the fixing clamp ring 5. During disassembly, the limiting piece 1117 is pulled to move outward, which will cause the sliding column 1115 to move outward and slide inside the cylinder 1114, thereby driving the inclined face block 1116 to move outward and slide on the inner wall of the sliding groove 1119 to release the limitation on the conical block 1113. Then, the conical block 1113 is slid out from the inner wall of the cylinder 1114 by the round block 1111, thus achieving disassembly. The operation steps in this embodiment are more convenient than those in the first embodiment.

[0036] Example 3:

[0037] Reference Figure 6 The present invention also provides an embodiment, which is implemented by the following scheme: the outer wall of the circular block 1101 is fixedly connected to the anti-slip block 1211, and the outer wall of the cylindrical block 1104 is fixedly connected to the anti-slip block 2 1212.

[0038] Specifically, the anti-slip block 1211 on the outer wall of the circular block 1101 and the anti-slip block 1212 on the outer wall of the cylindrical block 1104 can increase the friction between the hand and the parts during operation, preventing slippage during locking or installation operations by rotation or pulling, making it easier for operators to apply force and control the movement of the parts stably, thereby improving the convenience and efficiency of the disassembly and assembly process.

[0039] Example 4:

[0040] Reference Figure 7The present invention also provides an embodiment, which is implemented by the following scheme: the outer wall of the cylinder 1104 is provided with an anti-slip groove 1202, and the outer wall of the block 1101 is provided with an anti-slip groove 1201.

[0041] Specifically, the anti-slip groove 1202 on the outer wall of cylinder 1104 and the anti-slip groove 1201 on the outer wall of block 1101 can increase the contact friction between the hand and the parts through the groove structure. During locking or installation operations, it can effectively prevent the hand from slipping, making it easier for the operator to apply force stably, thereby improving the convenience and efficiency of operation during locking and installation, and ensuring the smoothness of disassembly and assembly.

[0042] Working principle: Fixed clamp ring 1 and fixed clamp ring 2 5 open and close by rotating the rotating column 3 on the connecting block 4 within the rotating groove 2. When closed, fixed clamp ring 1 and fixed clamp ring 2 5 wrap around the drain pipe, fixed block 1 6 and fixed block 2 7 fit together, and fixed column 9 penetrates into the interior of fixed block 1 6 and fixed block 2 7 to complete the initial positioning. Limiting column 1 8 restricts the movement of fixed column 9. Subsequently, the fixing component slides into the inner wall of the through groove 10 to fix the time-synchronized fixed clamp ring 1 and fixed clamp ring 2 5. The fixing component enables the disassembly and installation of the time-synchronized fixed clamp ring 1 and fixed clamp ring 2 5 and the pipe, thereby achieving the effect of quick connection and disassembly of the drain pipe. This can speed up construction and maintenance, shorten the construction period, reduce the impact on daily life and operation, facilitate emergency handling, lower the operation threshold, and make pipeline maintenance more efficient and convenient.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-release building drainage pipe connecting clamp, comprising a first fixing clamp ring (1) and a second fixing clamp ring (5), characterized in that: The outer wall of the first fixing clamp ring (1) is provided with a rotating groove (2). The outer wall of the second fixing clamp ring (5) is fixedly connected with a connecting block (4). The inside of the connecting block (4) is fixedly connected with a rotating column (3). The two ends of the rotating column (3) are rotatably connected to the inner wall of the rotating groove (2). The outer wall of the first fixing clamp ring (1) and the outer wall of the second fixing clamp ring (5) are in contact. The outer wall of the first fixing clamp ring (1) is fixedly connected with a fixing block (6). The outer wall of the second fixing clamp ring (5) is fixedly connected with a fixing block (6). 7) The outer wall of the second fixing block (7) is in contact with the outer wall of the first fixing block (6). The first fixing block (6) is slidably connected to a fixing post (9). The outer wall of the fixing post (9) is slidably connected to the inside of the second fixing block (7). The outer wall of the fixing post (9) is fixedly connected to a limiting post (8). The end of the limiting post (8) near the fixing post (9) abuts against the outer wall of the first fixing block (6). The outer wall of the fixing post (9) is provided with a through groove (10). The outer wall of the second fixing block (7) is provided with a fixing component.

2. The quick-release building drainage pipe connecting clamp according to claim 1, characterized in that: The through groove (10) can be circular or non-circular in shape.

3. The quick-release building drainage pipe connecting clamp according to claim 2, characterized in that: When the through groove (10) is not circular, the fixing assembly includes a circular block (1101), the outer end of which is fixedly connected to a limiting post (1102), the outer wall of the limiting post (1102) is slidably connected to the inner wall of the through groove (10), the outer wall of the limiting post (1102) is fixedly connected to a limiting block (1103), the outer wall of the limiting post (1102) is slidably connected to a cylinder (1104), the outer end of the cylinder (1104) is provided with a through groove (1106), the inner wall of the cylinder (1104) is provided with a slot (1105), and the limiting block (1103) is fixedly connected to a limiting block (1103). The outer wall of the limiting block (1103) is slidably connected to the inner wall of the through groove (1106). The outer wall of the limiting block (1103) is slidably connected to the inner wall of the slot (1105). The inner wall of the cylinder (1104) is slidably connected to the sliding column (1107). The outer wall of the sliding column (1107) is fixedly connected to the abutment (1109). The outer wall of the sliding column (1107) is slidably connected to the spring (1108). One end of the spring (1108) is fixedly connected to the inner wall of the cylinder (1104). The other end of the spring (1108) is connected to the abutment (1109) near the end of the sliding column (1107).

4. The quick-release building drainage pipe connecting clamp according to claim 3, characterized in that: The outer wall of the first circular block (1101) abuts against the outer wall of the second fixed block (7), and the outer end of the abutting block (1109) abuts against the end of the second limiting post (1102) away from the first circular block (1101).

5. The quick-release building drainage pipe connecting clamp according to claim 2, characterized in that: When the through groove one (10) is circular, the fixing assembly includes a circular block two (1111), the outer end of the circular block two (1111) is fixedly connected to a cylinder (1112), the other end of the cylinder (1112) is fixedly connected to a conical block (1113), the outer wall of the conical block (1113) is slidably connected to the inner wall of the through groove one (10), the outer wall of the conical block (1113) is slidably connected to a cylindrical second (1114), the inner wall of the cylindrical second (1114) is provided with a sliding groove (1119), and the inside of the cylindrical second (1114) is slidably connected to a sliding groove. The sliding column two (1115) has an inclined plate block (1116) fixedly connected to its outer wall. The outer wall of the inclined plate block (1116) is slidably connected to the outer wall of the conical block (1113). The outer wall of the sliding column two (1115) has a limit piece (1117) fixedly connected to its outer wall. The outer wall of the sliding column two (1115) has a spring two (1118) slidably connected to its outer wall. One end of the spring two (1118) is fixedly connected to the inner wall of the sliding groove (1119), and the other end of the spring two (1118) is fixedly connected to the outer wall of the inclined plate block (1116).

6. The quick-release building drainage pipe connecting clamp according to claim 5, characterized in that: The outer wall of the second cylinder (1114) abuts against the outer wall of the second fixed block (7), the outer wall of the second round block (1111) abuts against the outer wall of the second fixed block (7), and the outer wall of the inclined plate block (1116) is slidably connected to the inner wall of the sliding groove (1119).

7. The quick-release building drainage pipe connecting clamp according to claim 3, characterized in that: The outer wall of the first circular block (1101) is fixedly connected to the first anti-slip block (1211), and the outer wall of the first cylindrical block (1104) is fixedly connected to the second anti-slip block (1212).

8. The quick-release building drainage pipe connecting clamp according to claim 3, characterized in that: The outer wall of the first cylinder (1104) is provided with a second anti-slip groove (1202), and the outer wall of the first round block (1101) is provided with a first anti-slip groove (1201).

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