More environment-friendly extrusion type earth excavation equipment and method

Abstract

The invention relates to the technical field of building construction, and discloses more environment-friendly extrusion type earth excavation equipment and method. The soil discharging mechanism is arranged on the main supporting pipe, the soil discharging mechanism is used for guiding water and soil separation, the soil discharging mechanism comprises a plastic soil discharging bent pipe, the plastic soil discharging bent pipe is fixedly connected to the main supporting pipe, and a pressurizing soil squeezing pipe body is arranged at the bottom of the main supporting pipe; a sleeving threaded pipe is arranged at the bottom of the pressurizing soil squeezing pipe body, a drill bit is arranged at the bottom of the sleeving threaded pipe, and a through hole is formed in the pressurizing soil squeezing pipe body. According to the more environment-friendly extrusion type earth excavation equipment and method, through cooperation of the pressurizing soil extrusion pipe body and the molding soil discharging bent pipe, it is ensured that soil is formed in a strip shape and discharged in a concentrated mode, water and soil leakage is reduced, dripping pollution is effectively avoided, the soil discharging efficiency and cleanliness are improved, and concentrated loading and outward transportation are facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to a more environmentally friendly extrusion-type earth excavation device and method. Background Art

[0002] Extrusion-type earth excavation equipment uses longitudinal extrusion to push the soil out step by step. The extruded soil is transported out in strips or bags.

[0003] At present, earth excavation is widely required in engineering construction, but existing excavation equipment has many problems in actual use. Especially in soft soil, water-rich areas or confined spaces, conventional excavators, forklifts and other equipment easily mix water and mud together and dig out, resulting in the inability to separate high-quality soil and low-quality mud. Untreated mud and water are directly loaded and transported out, and dripping during transportation pollutes the environment. After the slag is dumped, a mud crust is formed, which is not easy to dry and can easily cause pedestrians to slip, posing a safety hazard. In areas with high moisture content, a large amount of water and soil are excavated together, which can easily cause pressure imbalance in the foundation pit and trigger slope collapse. In addition, traditional equipment is large in size and requires a large amount of working space. It cannot enter restricted areas such as basements, inspection wells, and under steel mesh. Mud accumulation is difficult to clean and will corrode the steel bars over time. The cost of removing the steel bars for cleaning is very high. If water is used for cleaning, water resources are wasted and pollution is serious. These problems show that the existing excavation method is not environmentally friendly, efficient, and safe, and cannot meet the requirements of modern engineering for green, precise, and safe construction. Summary of the Invention

[0004] Technical problems solved In view of the shortcomings of the existing technology, the present invention provides a more environmentally friendly extrusion type earth excavation equipment and method, which solves the problem of soil and water loss caused by the existing earth excavation method.

[0005] (2) Technical solution In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a more environmentally friendly squeezing earth excavation equipment, comprising: a main support pipe; a soil discharge mechanism, the soil discharge mechanism is arranged on the main support pipe, the soil discharge mechanism is used to guide the separation of water and soil, the soil discharge mechanism comprises a molded soil discharge elbow, the molded soil discharge elbow is fixedly connected to the main support pipe, the bottom of the main support pipe is provided with a pressurized soil extrusion pipe body, the bottom of the pressurized soil extrusion pipe body is provided with a sleeve threaded pipe, the bottom of the sleeve threaded pipe is provided with a drill bit, the pressurized soil extrusion pipe body is provided with a sleeve threaded pipe, the bottom of the sleeve threaded pipe is provided with a drill bit, the pressurized soil extrusion pipe body is provided with a sleeve threaded pipe, the bottom of the sleeve threaded pipe is provided with a drill bit, the pressurized soil extrusion pipe body is provided with a sleeve threaded pipe, the sleeve threaded ... A through hole is provided on the soil pipe body, and a through hole is provided on the sleeve threaded pipe; a spiral suction mechanism, which is used to spirally suck and transport the loose soil squeezed in the soil discharge mechanism; a knocking mechanism, which is provided on the top of the plastic soil discharge bend pipe, and the knocking mechanism is used to mechanically knock the soil attached to the inner wall of the plastic soil discharge bend pipe during the soil discharge process; a cleaning mechanism, which is provided on the spiral suction mechanism, and the cleaning mechanism is used to clean the through holes on the pressurized soil extrusion pipe body and the sleeve threaded pipe.

[0006] Preferably, it also includes: an external mechanism, which is arranged on the main support tube, and is used to facilitate hand-held control and foot-pedaling to achieve control of the direction and depth of soil extrusion. The external mechanism includes a support ring, which is fixedly connected to the outer wall of the main support tube, and a foot pedal is fixedly connected to the support ring. The top of the foot pedal is fixedly connected to an external rod, and the top of the external rod is provided with an armrest.

[0007] Preferably, the armrest is threadedly connected to the top of the external rod for convenient hand-held control.

[0008] Preferably, the pressurized soil squeezing pipe body is threadedly connected to the main support pipe, and the sleeve threaded pipe is threadedly connected to the pressurized soil squeezing pipe body.

[0009] Preferably, the spiral suction mechanism includes a drive motor, the output shaft of the drive motor is fixedly connected to the main shaft, the outer shell of the drive motor is fixedly connected to a hollow cylindrical block, the hollow cylindrical block is fixedly connected to the outer wall of the molded soil discharge bend pipe, and the main shaft is fixedly connected to a spiral propulsion rod.

[0010] Preferably, a connecting piece is provided at the bottom of the spiral propulsion rod, and the spiral propulsion rod is fixedly connected to the extended spiral rod through the connecting piece.

[0011] Preferably, the knocking mechanism includes a baffle, which is fixedly connected to the inner wall of the hollow cylindrical block. A spring 1 is provided on the outer wall of the main shaft, one end of the spring 1 is fixedly connected to the outer wall of the main shaft, and the other end of the spring 1 is fixedly connected to the knocking block.

[0012] Preferably, the cleaning mechanism comprises a crushing roller, and the crushing roller is fixedly connected to the spiral propulsion rod.

[0013] Preferably, an inner groove is provided on the inner wall of the spiral propulsion rod, and a second spring is provided on the inner wall of the inner groove, one end of the second spring is fixedly connected to the inner wall of the inner groove, and the other end of the second spring is fixedly connected to an arc-shaped head block, and the outer wall of the arc-shaped head block is slidably connected to the inner wall of the inner groove.

[0014] A more environmentally friendly method of using squeezing earth excavation equipment also includes the following methods of use: Step 1: Use the pedal in the external mechanism to apply vertical pressure to control the main support tube to move axially in the soil direction. The main support tube drives the pressurized soil squeezing tube body, the sleeve threaded tube, and the drill bit to move toward the soil. The external rod is controlled by the handrail. The external rod controls the direction of the soil discharge mechanism through the pedal and the external rod, and the soil squeezing and extraction are controlled by hands and feet. Step 2: The soil discharge mechanism guides and discharges the extruded soil through the pressurized soil squeezing pipe body and the shaped soil discharge elbow. The pressurized soil squeezing pipe body and the through holes on the sleeve threaded pipe discharge the water to separate the water and soil. Step 3: Start the driving motor, the motor drives the spiral propulsion rod and the crushing roller to rotate through the main shaft, and the spiral propulsion rod drives the water and soil upward; Step 4: The main shaft drives the spring 1 and the knocking block to rotate, so that the knocking block repeatedly knocks the baffle; Step 5: When the spiral propulsion rod drives the crushing roller to rotate, the crushing roller drives the arc head block to rotate. Under the action of spring 2, the arc head of the arc head block repeatedly enters the through hole of the booster soil squeezing pipe body and the sleeve threaded pipe for cleaning.

[0015] (3) Beneficial effects Compared with the prior art, the present invention provides a more environmentally friendly extrusion excavation equipment and method, which has the following beneficial effects: 1. This more environmentally friendly squeezing earth excavation equipment and method, through the cooperation of the pressurized soil squeezing pipe body and the shaped soil discharge elbow, ensures that the soil is formed into strips and discharged in a centralized manner, reducing water and soil leakage, effectively avoiding dripping pollution, improving the efficiency and cleanliness of soil discharge, and facilitating centralized loading and transportation.

[0016] 2. This more environmentally friendly squeezing earth excavation equipment and method has a spiral suction mechanism that allows loose soil to be spirally sucked and smoothly transported, preventing soil accumulation from clogging the pipeline, effectively improving the equipment's discharge efficiency, and ensuring the continuity and stability of operations.

[0017] 3. This more environmentally friendly squeezing earth excavation equipment and method uses a knocking mechanism that repeatedly knocks the baffle to cause the soil attached to the inner wall of the discharge elbow to fall off, effectively avoiding blockage of the discharge channel, further improving the discharge efficiency, and ensuring that the equipment can operate smoothly even in complex soil environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the external connection mechanism of the present invention; Figure 3 It is a structural schematic diagram of the soil discharge mechanism of the present invention; Figure 4 Schematic diagram of the cross-sectional structure of the main support tube of the present invention; Figure 5 Schematic diagram of the structure of the spiral propulsion rod of the present invention; Figure 6 Schematic diagram of the cross-sectional structure of the crushing roller of the present invention; Figure 7 It is a schematic diagram of the cross-sectional structure of the hollow cylindrical block of the present invention.

[0019] In the figure: 1. Main support tube; 2. External mechanism; 21. Support ring; 22. Foot pedal; 23. External rod; 24. Handrail; 3. Soil discharge mechanism; 31. Molded soil discharge elbow; 32. Pressurized soil extrusion pipe body; 33. Socket-connected threaded pipe; 34. Drill bit; 4. Spiral suction mechanism; 41. Drive motor; 42. Main shaft; 43. Spiral propulsion rod; 44. Connecting piece; 45. Extended spiral rod; 5. Knocking mechanism; 51. Hollow cylindrical block; 52. Baffle; 53. Spring 1; 54. Knocking block; 6. Cleaning mechanism; 61. Crushing roller; 62. Inner slide; 63. Spring 2; 64. Arc-shaped head block. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 7A more environmentally friendly squeezing earth excavation equipment includes: a main support pipe 1 as a basic support structure; a soil discharge mechanism 3, which is arranged on the main support pipe 1 and is used to guide the separation of water and soil, facilitate centralized loading and transportation, and reduce dripping and leakage pollution. The soil discharge mechanism 3 includes a molded soil discharge bend 31, which is fixedly connected to the main support pipe 1. The bottom of the main support pipe 1 is provided with a pressurized soil extrusion pipe body 32, and the bottom of the pressurized soil extrusion pipe body 32 is provided with a sleeve threaded pipe 33, which is sleeved. The bottom of the threaded tube 33 is provided with a drill bit 34, the pressurized soil squeezing tube body 32 is provided with a through hole, the sleeve threaded tube 33 is provided with a through hole, the shaped soil discharge elbow 31, the main support tube 1, the pressurized soil squeezing tube body 32, the sleeve threaded tube 33 and the drill bit 34 are connected in sequence to form a continuous soil taking and discharge passage, which is used to start from the drill bit 34 to take soil, after pressurization and shaping, and then guide the discharge through the shaped soil discharge elbow 31, ensuring that the soil is formed into strips and falls into the transportation device in a concentrated manner, thereby improving the efficiency and neatness of soil discharge. In order to avoid water overflow and pollution, the pressurized soil squeezing pipe body 32 and the sleeve threaded pipe 33 are provided with through holes for releasing excess water during the squeezing and soil extraction process, so that the soil mixed with water can be gradually separated from the water when being transported through the pipeline, reducing the water from flowing out with the soil during the discharge process, reducing the risk of dripping, facilitating subsequent centralized recovery and treatment, and improving the environmental protection effect; the spiral suction mechanism 4, the spiral suction mechanism 4 is used to spirally suck and transport the loose soil squeezed in the soil discharge mechanism 3, thereby improving the discharge efficiency, avoiding the accumulation and blockage of soil in the pipeline, and facilitating continuous and stable operation; the knocking mechanism 5, the knocking mechanism 5 is arranged on the top of the molded soil discharge bend pipe 31, and the knocking mechanism 5 is used to mechanically knock the soil attached to the inner wall of the molded soil discharge bend pipe 31 during the soil discharge process, so as to cause it to fall off and be discharged smoothly, thereby preventing the soil discharge channel from being blocked and improving the soil discharge efficiency and continuous operation capability; the cleaning mechanism 6, the cleaning mechanism 6 is arranged on the spiral suction mechanism 4, and the cleaning mechanism 6 is used to clean the through holes on the pressurized soil squeezing pipe body 32 and the sleeve threaded pipe 33.

[0022] The external mechanism 2 is arranged on the main support tube 1. The external mechanism 2 is used to facilitate hand-held control and foot-operated force to realize the control of the direction and depth of soil extrusion. The external mechanism 2 includes a support ring 21, which is fixedly connected to the outer wall of the main support tube 1. A pedal 22 is fixedly connected to the support ring 21, which is used for the operator to apply force by foot to make the drill bit 34 squeezed into the soil axially downward along the main support tube 1 to realize longitudinal extrusion of the soil. The top of the pedal 22 is fixedly connected to the external rod 23, and the top of the external rod 23 is provided with a handrail 24.

[0023] The handrail 24 is threadedly connected to the top of the external rod 23 for easy hand-held control. A vibration device or impact device can also be installed on the top of the external rod 23 to enhance the penetration force and crushing ability when taking soil, and improve the excavation efficiency in hard or highly cohesive soils. The booster soil squeezing pipe body 32 is threadedly connected to the main support pipe 1, and the sleeve threaded pipe 33 is threadedly connected to the booster soil squeezing pipe body 32 to achieve detachable connection of pipe sections of different lengths, which is convenient for flexible lengthening or shortening of the device according to the working depth, and is also convenient for maintenance, transportation and cleaning of the equipment. The spiral suction mechanism 4 includes a drive motor 41, the output shaft of the drive motor 41 is fixedly connected to the main shaft 42, and the outer shell of the drive motor 41 is fixed It is connected to a hollow cylindrical block 51, which is fixedly connected to the outer wall of the molded soil discharge elbow 31. A spiral propulsion rod 43 is fixedly connected to the main shaft 42. A connecting piece 44 is provided at the bottom of the spiral propulsion rod 43. The spiral propulsion rod 43 is fixedly connected to an extended spiral rod 45 through the connecting piece 44. Multiple extended spiral rods 45 and connecting pieces 44 can be provided to adjust the spiral suction length according to different working depths, enhance the coverage and adaptability of soil transportation, ensure that deep soil can also be effectively sucked and discharged smoothly, avoid deep soil retention or blockage, improve soil discharge efficiency, adapt to construction needs under various complex geological environments, and effectively improve the working adaptability and environmental compatibility of the whole machine.

[0024] The knocking mechanism 5 includes a baffle 52, which is fixedly connected to the inner wall of the hollow cylindrical block 51. The outer wall of the main shaft 42 is provided with a spring 53, one end of the spring 53 is fixedly connected to the outer wall of the main shaft 42, and the other end of the spring 53 is fixedly connected to the knocking block 54. When the main shaft 42 rotates, the main shaft 42 drives the spring 53 and the knocking block 54 to rotate, so that the knocking block 54 repeatedly knocks the baffle 52. The cleaning mechanism 6 includes a crushing roller 61, which is fixedly connected to the spiral propulsion rod 43. When the spiral propulsion rod 43 rotates, the crushing roller 61 crushes the water and soil An inner groove 62 is provided on the inner wall of the spiral propulsion rod 43, and a spring 2 63 is provided on the inner wall of the inner groove 62. One end of the spring 2 63 is fixedly connected to the inner wall of the inner groove 62, and the other end of the spring 2 63 is fixedly connected to the arc head block 64. The outer wall of the arc head block 64 is slidably connected to the inner wall of the inner groove 62. When the spiral propulsion rod 43 drives the crushing roller 61 to rotate, the crushing roller 61 drives the arc head block 64 to rotate. Under the action of the spring 2 63, the arc head of the arc head block 64 repeatedly enters the through hole of the pressurized soil squeezing pipe body 32 and the sleeve threaded pipe 33 for cleaning.

[0025] A more environmentally friendly method of using squeezing earth excavation equipment also includes the following methods of use: Step 1: Use the pedal 22 in the external mechanism 2 to apply vertical pressure to control the main support tube 1 to move axially in the soil direction. The main support tube 1 drives the pressurized soil squeezing tube body 32, the sleeve threaded tube 33, and the drill bit 34 to move toward the soil. The external rod 23 is controlled by the handrail 24. The external rod 23 controls the direction of the soil discharge mechanism 3 through the pedal 22 and the external rod 23. The soil squeezing and soil removal are controlled by hands and feet; Step 2: The soil discharge mechanism 3 guides and discharges the extruded soil through the pressurized soil extrusion pipe body 32 and the shaped soil discharge elbow 31. The through holes on the pressurized soil extrusion pipe body 32 and the sleeve threaded pipe 33 discharge water to separate the water and soil. Step 3: Start the drive motor 41, which drives the spiral propulsion rod 43 and the crushing roller 61 to rotate through the main shaft 42. The spiral propulsion rod 43 drives the water and soil upward, and the loose soil is sucked upward in a spiral manner, effectively preventing the soil from accumulating in the pipeline; Step 4: The main shaft 42 drives the spring 1 53 and the knocking block 54 to rotate, so that the knocking block 54 repeatedly knocks the baffle 52 to ensure that the soil adhering to the pipe wall falls off smoothly and avoids blocking the soil discharge channel; Step 5: When the spiral propulsion rod 43 drives the crushing roller 61 to rotate, the crushing roller 61 drives the arc-shaped head block 64 to rotate. Under the action of the spring 2 63, the arc-shaped head of the arc-shaped head block 64 repeatedly enters the through holes of the booster soil squeezing pipe body 32 and the sleeve threaded pipe 33 for cleaning.

[0026] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

Claims

1. A more environmentally friendly extrusion excavation equipment, characterized by: include: Main support tube (1); A soil discharge mechanism (3), the soil discharge mechanism (3) is arranged on the main support pipe (1), the soil discharge mechanism (3) is used to guide the separation of water and soil, the soil discharge mechanism (3) comprises a shaped soil discharge bend pipe (31), the shaped soil discharge bend pipe (31) is fixedly connected to the main support pipe (1), a pressurized soil extrusion pipe body (32) is provided at the bottom of the main support pipe (1), a sleeve threaded pipe (33) is provided at the bottom of the pressurized soil extrusion pipe body (32), a drill bit (34) is provided at the bottom of the sleeve threaded pipe (33), a through hole is provided on the pressurized soil extrusion pipe body (32), and a through hole is provided on the sleeve threaded pipe (33); A spiral suction mechanism (4), the spiral suction mechanism (4) is used to perform spiral suction and transportation on the loose soil squeezed in the soil discharge mechanism (3); A knocking mechanism (5), the knocking mechanism (5) being arranged on the top of the molded soil discharge bend pipe (31), the knocking mechanism (5) being used to mechanically knock the soil adhering to the inner wall of the molded soil discharge bend pipe (31) during the soil discharge process; A cleaning mechanism (6) is provided on the spiral suction mechanism (4), and is used to clean the through holes on the pressurized soil squeezing pipe body (32) and the sleeve threaded pipe (33).

2. A more environmentally friendly squeezing earth excavation equipment according to claim 1, characterized in that: Also includes: An external connection mechanism (2) is provided on the main support tube (1), and is used to facilitate hand-held control and foot-pedaling to achieve control of the direction and depth of soil excavation. The external connection mechanism (2) comprises a support ring (21), and the support ring (21) is fixedly connected to the outer wall of the main support tube (1). A pedal (22) is fixedly connected to the support ring (21), and the top of the pedal (22) is fixedly connected to an external connection rod (23), and the top of the external connection rod (23) is provided with a handrail (24).

3. A more environmentally friendly squeezing earth excavation equipment according to claim 2, characterized in that: The handrail (24) is threadedly connected to the top of the external rod (23) for convenient hand-held control.

4. The more environmentally friendly squeezing earth excavation equipment according to claim 1, characterized in that: The pressurized soil squeezing pipe body (32) is threadedly connected to the main support pipe (1), and the sleeve threaded pipe (33) is threadedly connected to the pressurized soil squeezing pipe body (32).

5. The more environmentally friendly squeezing earth excavation equipment according to claim 1, characterized in that: The spiral suction mechanism (4) comprises a drive motor (41), the output shaft of the drive motor (41) is fixedly connected to a main shaft (42), the housing of the drive motor (41) is fixedly connected to a hollow cylindrical block (51), the hollow cylindrical block (51) is fixedly connected to the outer wall of the molded soil discharge elbow (31), and the main shaft (42) is fixedly connected to a spiral propulsion rod (43).

6. A more environmentally friendly squeezing earth excavation equipment according to claim 5, characterized in that: A connecting piece (44) is provided at the bottom of the spiral propulsion rod (43), and the spiral propulsion rod (43) is fixedly connected to an extended spiral rod (45) via the connecting piece (44).

7. The more environmentally friendly squeezing earth excavation equipment according to claim 5, characterized in that: The knocking mechanism (5) includes a baffle (52), the baffle (52) is fixedly connected to the inner wall of the hollow cylindrical block (51), the outer wall of the main shaft (42) is provided with a spring (53), one end of the spring (53) is fixedly connected to the outer wall of the main shaft (42), and the other end of the spring (53) is fixedly connected to the knocking block (54).

8. The more environmentally friendly squeezing earth excavation equipment according to claim 1, characterized in that: The cleaning mechanism (6) comprises a crushing roller (61), and the crushing roller (61) is fixedly connected to the spiral propulsion rod (43).

9. A more environmentally friendly squeezing earth excavation equipment according to claim 8, characterized in that: An inner groove (62) is provided on the inner wall of the spiral propulsion rod (43), and a second spring (63) is provided on the inner wall of the inner groove (62). One end of the second spring (63) is fixedly connected to the inner wall of the inner groove (62), and the other end of the second spring (63) is fixedly connected to an arc-shaped head block (64). The outer wall of the arc-shaped head block (64) is slidably connected to the inner wall of the inner groove (62).

10. A more environmentally friendly method for using extrusion-type earth excavation equipment, characterized by: The more environmentally friendly squeezing earth excavation equipment used in any one of claims 1 to 9 above also includes the following method of use: Step 1: Use the pedal (22) in the external mechanism (2) to apply vertical pressure to control the main support pipe (1) to move in the axial direction of the soil. The main support pipe (1) drives the pressurized soil squeezing pipe body (32), the sleeve threaded pipe (33), and the drill bit (34) to move in the direction of the soil. The external rod (23) is controlled by the handrail (24). The external rod (23) controls the direction of the soil discharge mechanism (3) through the pedal (22) and the external rod (23). The squeezing and extraction of soil are controlled by the hands and feet. Step 2: The soil discharge mechanism (3) guides and discharges the extruded soil through the pressurized soil extrusion pipe body (32) and the shaped soil discharge elbow (31), and the water is discharged through the through holes on the pressurized soil extrusion pipe body (32) and the sleeve threaded pipe (33), thereby performing water and soil separation; Step 3: Start the driving motor (41), the motor drives the spiral propulsion rod (43) and the crushing roller (61) to rotate through the main shaft (42), and the spiral propulsion rod (43) drives the water and soil upward; Step 4: The main shaft (42) drives the spring 1 (53) and the knocking block (54) to rotate, so that the knocking block (54) repeatedly knocks the baffle (52); Step 5: When the spiral propulsion rod (43) drives the crushing roller (61) to rotate, the crushing roller (61) drives the arc-shaped head block (64) to rotate, and the arc-shaped head of the arc-shaped head block (64) repeatedly enters the through hole of the booster soil squeezing pipe body (32) and the sleeve threaded pipe (33) under the action of the second spring (63) to clean.

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