CN116537355A - Operation method for cleaning sediment in inspection well - Google Patents

Abstract

An operation method for cleaning mud and sand in an inspection well adopts a multi-purpose cleaning tool. The multi-purpose cleaning tool includes a handle, a cleaning bucket, a revolving door, a bracket, a connecting frame for the handle, an inspection well and Inserting the rod, wherein the grip rod is composed of a plurality of sub- grip rods, and the support includes a support rod. When the present invention is in use, the operator stands beside the inspection well, inserts the cleaning barrel vertically into the inspection well with a handle in hand, and inserts the cleaning barrel into the silt with force. When the silt is squeezed, it will turn the rotating door and enter the cleaning barrel , The operator lifts the cleaning bucket, and the sand in the cleaning bucket resets the revolving door under the action of gravity, and the revolving door acts as a supporting surface to support the sand, thus completing the dredging work.

Description

Operation method for cleaning sediment in inspection well

The present invention is a divisional application for a multipurpose cleaning tool for cleaning up sediment in inspection wells and its operating method (patent application: 2021105802333; filing date: May 26, 2021).

technical field

The invention belongs to the technical field of drainage pipe network maintenance, and in particular relates to an operation method for cleaning sediment in inspection wells.

Background technique

Drainage network inspection wells will inevitably produce silt, which requires regular or irregular cleaning by operation and maintenance personnel. Although the conventional spoon-shaped cleaning tool is not efficient, it is more effective for soft silt. However, some inspection wells are relatively densely silted, and conventional dredging tools are almost ineffective. At this time, staff are required to go down to the well, but the risk is generally high and the efficiency is low. The difficulty and risk will be greater. Therefore, it is necessary to propose a method for cleaning high-density sediment for the above-mentioned problems.

Contents of the invention

In view of the technical problems existing in the background technology, the operation method for cleaning the sediment in the inspection well provided by the present invention adopts a multi-purpose cleaning tool, which works straight up and down, and is very suitable for inspection wells. This kind of vertical narrow working space has a good cleaning effect on inspection wells with relatively dense deposits, avoiding operators to go down to work, high work efficiency and convenient operation.

In order to solve the above technical problems, the present invention adopts the following technical solutions to realize:

An operation method for cleaning mud and sand in an inspection well adopts a multi-purpose cleaning tool. The multi-purpose cleaning tool includes a handle, a cleaning bucket, a revolving door, a bracket, a connecting frame for the handle, an inspection well and Inserting the rod, wherein the grip rod is composed of a plurality of sub- grip rods, and the support includes a support rod; the deposition operation is as follows:

When the silt in the inspection well is relatively dense, the operation steps are as follows:

S1: According to the length of the inspection well, select the number of sub-grips, and assemble multiple sub-grips to form a grip;

In the above steps, ensure that the grip rod is fixedly connected with the grip rod connecting frame, so that the grip rod cannot be rotated;

S2: Check the position of the revolving door, and ensure that the revolving door rests on the support rod or insertion rod of the bracket;

S3: The operator holds the handle and lowers the cleaning bucket into the inspection well;

S4: Use the inertia to insert the cleaning bucket downward into the sediment in the inspection well; if the insertion depth is not enough, use a hammer to hit the top of the handle;

S5: When the insertion depth of the cleaning bucket is appropriate, lift up the cleaning bucket;

S6: When the cleaning bucket reaches the ground, loosen the bracket to rotate the revolving door downward, so that the sediment is discharged, and the operation is completed;

When the silt in the inspection well is relatively sparse or the mud in the inspection well needs to be cleaned, the operation steps are as follows:

S1: According to the length of the inspection well, select the number of sub-grips, and assemble multiple sub-grips to form a grip,

In the above steps, ensure that the grip rod is hinged to the grip rod connecting frame, so that the grip rod can be rotated;

S2: Check the position of the revolving door, and ensure that the revolving door rests on the support rod or insertion rod of the bracket;

S3: The operator holds the handle and lowers the cleaning bucket into the inspection well;

S4: shake the cleaning bucket to make it swing, and put the mud into the cleaning bucket from the top of the cleaning bucket;

S5: lift up the cleaning bucket;

S6: When the cleaning bucket reaches the ground, turn the cleaning bucket to pour out the mud, and the operation is completed.

Preferably, one end of the grip rod is connected to the cleaning bucket, the bottom of the cleaning bucket is an open structure, and the bottom of the cleaning bucket is rotatably provided with a revolving door; one end of the revolving door is hinged to the cleaning bucket, and the other end of the revolving door is used to rest on the support On the upper part, the supporting piece is connected with the cleaning barrel; the upper part of the cleaning barrel is provided with a window, and the window is rotatably provided with a blocking piece.

Preferably, there are two revolving doors, and the two revolving doors are respectively hinged to the edges on both sides of the bottom of the cleaning bucket, and the movable ends of the two revolving doors are set upward and rest on the bracket.

Preferably, the bracket includes a support rod, the support rod is set through the side wall of the cleaning bucket, the support rod is threaded with the inner threaded cylinder, and the threaded cylinder is fixed on the outer wall of the cleaning bucket;

The outer end of the support rod is provided with a notch for wrench matching;

The number of supporting parts is two, and there is a space for silt to pass between the two supporting rods of the two supporting parts.

Preferably, the top of the cleaning bucket is provided with a grip rod connecting frame, and the grip rod connecting frame is connected with the grip rod; the top of the grip rod connecting frame is provided with a double-hole ear plate, and the bottom of the grip rod is provided with a U-shaped plate; the double-hole ear plate includes a first hole and the second hole, the first hole is hinged with the U-shaped plate through the pivot pin, and the second hole is fixed with the U-shaped plate through the bolt.

Preferably, the revolving door is connected to the cleaning barrel through a rotating shaft, and a torsion spring is arranged between the rotating shaft and the revolving door.

Preferably, the upper edge of the baffle is connected to the top edge of the window through a pivot pin; the bottom edge of the cleaning bucket is provided with a wedge-shaped blade.

Preferably, the bracket includes an insertion rod, which is used to penetrate the outer wall of the cleaning bucket, and the outer end of the insertion rod is connected to the strip, and the strip is attached to the outer wall of the cleaning bucket, and the top of the strip is bent obliquely upward to form a pressure handle. The bending part of the plate is provided with an arc-shaped protrusion, and the arc-shaped protrusion is hinged with the outer wall of the cleaning bucket, and the pressure handle is connected with the outer wall of the cleaning bucket through a spring.

This patent can achieve the following beneficial effects:

1. When the present invention is in use, the operator stands beside the inspection well, inserts the cleaning barrel vertically into the inspection well with a handle in hand, and inserts the cleaning barrel into the sediment by force, and when the sediment is squeezed, it will turn the rotary door and enter the cleaning Inside the bucket, the operator lifts up the cleaning bucket, and the sediment in the cleaning bucket resets the revolving door under the action of gravity, and the revolving door acts as a supporting surface to support the sediment, thus completing the dredging work. The working mode of the multi-purpose cleaning tool is straight up and down, which is very suitable for the vertically narrow working space of the inspection well. It has a good cleaning effect for the inspection well with relatively dense deposits, avoiding the operator's downhole operation, high work efficiency and convenient operation. .

2. This technical solution adds a window and baffle structure, and its purpose is explained in conjunction with the diagram: most of the silt will enter the cleaning bucket from the bottom of the cleaning bucket, but the silt is not easy to fill the entire cleaning bucket, and the window and After the baffle, the silt around the upper part of the cleaning bucket will squeeze the baffle, so that the baffle rotates and enters into the cleaning bucket; in this way, the upper space of the cleaning bucket is also easily filled with sand; when the cleaning bucket is lifted up, the baffle Under the action of gravity, it will turn downwards and play the role of closing the window. Therefore, the amount of sediment cleaned each time can be increased, and the work efficiency can be improved.

3. The support rod mechanism is changed to the insertion rod mechanism. The slats are flat and occupy less space, so the resistance is small. The driving structure is moved up to the upper part of the cleaning barrel, that is, the pressure handle, the spring and the arc-shaped protrusion are moved up. The pressure handle, spring and arc-shaped protrusions are not easy to contact with mud and sand too much, which helps to reduce resistance. On the contrary, if the pressure handle, the spring and the arc-shaped protrusion are arranged at the bottom of the cleaning bucket, the movement resistance of the cleaning bucket will be increased.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

Fig. 1 is the use effect drawing of multipurpose clearing tool of the present invention;

Fig. 2 is a cross-sectional view of a multipurpose clearing tool of the present invention;

Fig. 3 is a three-dimensional perspective view of the multipurpose cleaning tool of the present invention;

Figure 4 is an enlarged view of A in Figure 3;

Fig. 5 is an enlarged view of place B in Fig. 3;

Fig. 6 is the connection principle diagram of the sub-grip of the multi-purpose clearing tool of the present invention;

Fig. 7 is a working principle diagram of the multipurpose clearing tool of the present invention;

Fig. 8 is a side view of the multi-purpose clearing tool of the present invention (the bracket is a support rod mechanism);

Fig. 9 is a side view of the multi-purpose clearing tool of the present invention (the bracket is a rod-inserting mechanism);

Fig. 10 is a structural diagram of the insertion rod mechanism of the multi-purpose cleaning tool of the present invention.

In the figure: grip rod 1, sub grip rod 101, cleaning bucket 2, revolving door sheet 3, supporting piece 4, support rod 401, threaded cylinder 402, notch 403 for wrench matching, grip rod connecting frame 5, rotating shaft 6, inspection well 7. Window 8, blocking piece 9, double-hole ear plate 10, bolt 11, U-shaped plate 12, wedge-shaped blade 13, inserting rod 14, bar 15, pressure handle 16, arc-shaped protrusion 17, spring 18.

Detailed ways

The preferred scheme is shown in Figures 1 to 7. An operation method for cleaning the sediment in the inspection well adopts a multi-purpose cleaning tool for cleaning the sediment in the inspection well. The tool includes a handle 1, a handle One end of 1 is connected to the cleaning bucket 2, the bottom of the cleaning bucket 2 is an open structure, and the bottom of the cleaning bucket 2 is rotatably provided with a revolving door 3; one end of the revolving door 3 is hinged with the cleaning bucket 2, and the other end of the revolving door 3 is used for shelving On the supporting piece 4, the supporting piece 4 is connected with the cleaning bucket 2; the upper part of the cleaning bucket 2 is provided with a window 8, and the window 8 is rotatably provided with a blocking piece 9.

As shown in Figure 1, the operator stands beside the inspection well 7, holds the handle 1, inserts the cleaning bucket 2 vertically into the inspection well 7, and inserts the cleaning bucket 2 into the sand with force, and the sand will rotate when it is squeezed. The door piece 3 enters the cleaning bucket 2, and the operator lifts up the cleaning bucket 2, and the sand in the cleaning bucket 2 resets the revolving door piece 3 under the action of gravity, and the revolving door piece 3 serves as a supporting surface to support the sediment, thereby The dredging work has been completed. The working mode of the multi-purpose cleaning tool is straight up and down, which is very suitable for the vertically narrow working space of the inspection well 7. It has a good cleaning effect and is easy to operate for inspection wells with relatively dense deposits.

This technical scheme has increased window 8 and baffle 9 structure, and its purpose is explained in conjunction with Fig. 7: most of silt can enter in the cleaning bucket 2 from the bottom of cleaning bucket 2, but silt is not easy to fill the whole cleaning bucket 2, and After the window 8 and the baffle 9 are designed, the silt around the top of the cleaning bucket 2 will squeeze the baffle 9, so that the baffle 9 rotates and enters into the cleaning bucket 2; the upper space of the cleaning bucket 2 is also easy to be filled with mud. Sand; when the cleaning bucket 2 was lifted upwards, the catch 9 would rotate downwards under the action of gravity to play the role of closing the window 8. Therefore, the amount of sediment cleaned each time can be increased, and the work efficiency can be improved.

In order to improve the operating efficiency of the multipurpose cleaning tool, the cleaning bucket 2 is made as thin as possible under the premise of ensuring sufficient mechanical strength.

Further, as shown in Figure 2, the number of revolving door sheets 3 is two, and the two revolving door sheets 3 are respectively hinged with the edges on both sides of the bottom of the cleaning bucket 2, and the movable ends of the two revolving door sheets 3 are arranged obliquely upwards and placed on hold. On tray 4. The two revolving door sheets 3 are arranged in an inverted "V" shape, and the angle is preferably between 120°-150°.

Under the situation of not exceeding this design concept, one revolving door 3 can also be selected, and one end of the revolving door 3 is hinged with the inner wall of the cleaning bucket 2, and the bracket 4 is arranged at the inner wall of the other side of the cleaning bucket 2.

Further, as shown in FIG. 3 and FIG. 5 , the bracket 4 includes a support rod 401 , the support rod 401 is set through the side wall of the cleaning bucket 2 , the support rod 401 is screwed to the internally threaded cylinder 402 , and the threaded cylinder 402 is fixed on the cleaning bucket 2 outer wall. After the cleaning bucket 2 lifts the silt, the rotating support rod 401 makes it move outwards, the supporting rod 401 breaks away from the revolving door sheet 3, the revolving door sheet 3 rotates downwards, and the silt is discharged.

Further, the outer end of the support rod 401 is provided with a notch 403 for fitting with a wrench. The notch 403 for wrench fitting is used for fitting with a wrench.

Further, there are two holders 4 , and there is a space between the two support rods 401 of the two holders 4 for the passage of mud and sand. The support rod 401 protrudes slightly from the cleaning bucket 2 inwall, and the support rod 401 only needs to support the revolving door sheet 3. If the support rod 401 is too long or the support rod 401 crosses the cleaning bucket 2, it will hinder silt from entering the cleaning bucket 2.

Further, as shown in FIG. 3-4 , the top of the cleaning bucket 2 is provided with a handle connecting frame 5 , and the handle connecting frame 5 is connected with the handle 1 . The grip bar 1 is composed of a plurality of sub-grip bars 101, and two adjacent sub-grip bars 101 are screwed together.

Further, the revolving door 3 is connected to the cleaning bucket 2 through a rotating shaft 6 , and a torsion spring is provided between the rotating shaft 6 and the revolving door 3 .

The torsion spring helps the two revolving doors 3 to close when the cleaning bucket 2 is lifted, and the torsion spring elastic force is not easy to be too large, otherwise it will affect the silt entering the cleaning bucket 2.

The preferred solution is shown in Figure 4, and the connection method between the bracket 4 and the lever connecting frame 5 has been improved, specifically: the top of the lever connecting frame 5 is provided with a double-hole ear plate 10, and the bottom of the lever 1 is provided with a U Form plate 12 ; the double-hole ear plate 10 includes a first hole and a second hole, the first hole is hinged with the U-shaped plate 12 through a pivot pin, and the second hole is fixed with the U-shaped plate 12 through a bolt 11 .

The rod connecting frame 5 and the U-shaped plate 12 can always be hinged, and the bolts 11 can be set according to different use occasions. When cleaning relatively dense sediment, the bolts 11 are installed; when cleaning the thin mud, the bolts 11 are not installed. .

The preferred solution is shown in FIG. 8 , the upper edge of the blocking piece 9 is connected to the top edge of the window 8 through a pivot pin; the bottom edge of the cleaning bucket 2 is set and polished into a wedge-shaped blade 13 . The wedge-shaped blade 13 can facilitate the insertion of the cleaning bucket 2 into the silt easily.

In the preferred solution, as shown in Figure 9-10, the structure of the bracket is improved, and the support rod mechanism is changed to the insertion rod mechanism, because the support rod 401 and the threaded cylinder 402 will increase the resistance with the sediment, so that the cleaning Barrel 2 is not easy to insert in the silt. The specific plan is as follows:

The bracket 4 includes a plunger 14, which is used to run through the outer wall of the cleaning bucket 2. The outer end of the plunger 14 is connected to the slat 15, and the slat 15 is attached to the outer wall of the cleaning bucket 2. The top of the slat 15 is bent obliquely upward Formed pressure handle 16, the bend of lath 15 is provided with arc-shaped protrusion 17, and arc-shaped protrusion 17 is hinged with cleaning bucket 2 outer walls, and pressure handle 16 is connected with cleaning bucket 2 outer walls by spring 18.

The supporting rod mechanism is changed into an inserting rod mechanism, and the lath 15 is a flat structure, which takes up little space, and therefore the resistance is small. The driving structure is moved up to the top of the cleaning bucket 2, that is, the pressure handle 16, the spring 18 and the arc protrusion 17 are moved up. Pressure handle 16, spring 18 and arc-shaped protrusion 17 are not easy to contact with silt too much, help to reduce resistance. On the contrary, if the pressure handle 16, the spring 18 and the arc-shaped protrusion 17 are arranged on the bottom of the cleaning bucket, the movement resistance of the cleaning bucket will be increased.

In addition, the operation of the insertion rod 14 is more convenient, and the staff only needs to break the insertion rod 14 apart.

Because the trajectory of the plunger 14 is arc-shaped, the plunger 14 should be made as short as possible. And the diameter of the through hole that cooperates with the insertion rod 14 should be done appropriately larger.

In a preferred solution, the operation method of the operation method for cleaning the sediment in the inspection well includes the following steps:

When the silt in the inspection well is relatively dense, the operation steps are as follows:

S1: According to the length of the inspection well 7, select the number of sub-holding rods 101, and assemble a plurality of sub-holding rods 101 to form a gripping rod 1;

In the above steps, ensure that the grip rod 1 is fixedly connected with the grip rod connecting frame 5, so that the grip rod 1 cannot be rotated;

S2: Check the position of the revolving door 3 to ensure that the revolving door 3 rests on the support rod 401 or the insertion rod 14 of the bracket 4;

S3: The operator holds the handle 1 and lowers the cleaning bucket 2 into the inspection well 7;

S4: Insert the cleaning bucket 2 downward into the sediment in the inspection well 7 by virtue of inertia; if the insertion depth is not enough, use a hammer to hit the top of the handle 1;

S5: When the insertion depth of the cleaning bucket 2 is appropriate, lift the cleaning bucket 2 upwards;

S6: When the cleaning bucket 2 reaches the ground, loosen the bracket 4 to rotate the revolving door 3 downward, so that the sediment is discharged, and the operation is completed;

When the silt in the inspection well is relatively sparse or the mud in the inspection well needs to be cleaned, the operation steps are as follows:

S1: According to the length of the inspection well 7, select the number of sub-holding rods 101, and assemble a plurality of sub-holding rods 101 to form a gripping rod 1,

In the above steps, ensure that the grip rod 1 is hinged with the grip rod connecting frame 5, so that the grip rod 1 can rotate;

S2: Check the position of the revolving door 3 to ensure that the revolving door 3 rests on the support rod 401 or the insertion rod 14 of the bracket 4;

S3: The operator holds the handle 1 and lowers the cleaning bucket 2 into the inspection well 7;

S4: shake the cleaning bucket 2 to make it swing, and put the mud into the cleaning bucket 2 from the top of the cleaning bucket 2;

S5: lift up the cleaning bucket 2;

S6: When the cleaning bucket 2 reaches the ground, turn the cleaning bucket 2 to pour out the mud, and the operation is completed.

The above-mentioned embodiments are only preferred technical solutions of the present invention, and should not be regarded as limitations on the present invention. The protection scope of the present invention should be the technical solution described in the claims, including the equivalent of technical features in the technical solutions described in the claims. The alternative is the scope of protection. That is, equivalent replacement and improvement within this range are also within the protection scope of the present invention.

Claims (8)

1. An operation method for cleaning sediment in an inspection well, characterized in that: a multi-purpose cleaning tool is adopted, and the multi-purpose cleaning tool includes a handle (1), a cleaning bucket (2), a revolving door (3), supporting piece (4), holding rod connecting frame (5), inspection well (7) and inserting rod (14), wherein the holding rod (1) is composed of a plurality of sub-holding rods (101), and the holding rod Part (4) includes the support rod (401); the sedimentation operation is as follows: When the silt in the inspection well is relatively dense, the operation steps are as follows: S1: According to the length of the inspection well (7), select the number of sub-grip rods (101), and assemble multiple sub-grip rods (101) to form a grip rod (1); In the above steps, ensure that the grip rod (1) is fixedly connected with the grip rod connecting frame (5), so that the grip rod (1) cannot be rotated; S2: Check the position of the revolving door (3), make sure that the revolving door (3) rests on the support rod (401) or the insertion rod (14) of the bracket (4); S3: The operator holds the handle (1) and lowers the cleaning bucket (2) into the inspection well (7); S4: Insert the cleaning bucket (2) downward into the sediment in the inspection well (7) by means of inertia; if the insertion depth is not enough, use a hammer to hit the top of the handle (1); S5: When the insertion depth of the cleaning bucket (2) is appropriate, lift up the cleaning bucket (2); S6: When the cleaning bucket (2) reaches the ground, loosen the bracket (4) to rotate the revolving door (3) downward, so that the sediment is discharged, and the operation is completed; When the silt in the inspection well is relatively sparse or the mud in the inspection well needs to be cleaned, the operation steps are as follows: S1: According to the length of the inspection well (7), select the number of sub-grips (101), and assemble multiple sub-grips (101) to form a grip (1), In the above steps, ensure that the grip (1) is hinged to the grip connecting frame (5), so that the grip (1) can rotate; S2: Check the position of the revolving door (3), make sure that the revolving door (3) rests on the support rod (401) or the insertion rod (14) of the bracket (4); S3: The operator holds the handle (1) and lowers the cleaning bucket (2) into the inspection well (7); S4: shake the cleaning bucket (2) to make it swing, and put the mud into the cleaning bucket (2) from the top of the cleaning bucket (2); S5: lift up the cleaning bucket (2); S6: When the cleaning bucket (2) reaches the ground, turn the cleaning bucket (2) to pour out the mud, and the operation is completed. 2. An operation method for cleaning sediment in an inspection well according to claim 1, characterized in that: one end of the handle (1) is connected to the cleaning bucket (2), and the bottom of the cleaning bucket (2) is an open structure, and The bottom of the cleaning bucket (2) is rotatably provided with a revolving door (3); one end of the revolving door (3) is hinged to the cleaning bucket (2), and the other end of the revolving door (3) is used to rest on the support (4) On the top, the supporting piece (4) is connected with the cleaning barrel (2); the upper part of the cleaning barrel (2) is provided with a window (8), and the window (8) is rotatably provided with a block (9). 3. The operation method for cleaning the sediment in the inspection well according to claim 2, characterized in that: the number of revolving door pieces (3) is two, and the two revolving door pieces (3) are respectively connected with the cleaning bucket (2 ) are hinged at both sides of the bottom, and the movable ends of the two revolving door pieces (3) are set upward and rest on the supporting piece (4). 4. The operation method for cleaning the sediment in the inspection well according to claim 3, characterized in that: the support (4) includes a support rod (401), and the support rod (401) is set through the side wall of the cleaning bucket (2) , the support rod (401) is threadedly connected with the internally threaded cylinder (402), and the threaded cylinder (402) is fixed on the outer wall of the cleaning bucket (2); The outer end of the support rod (401) is provided with a notch (403) for matching with a wrench; The number of supporting pieces (4) is two, and there is a space for silt to pass between the two supporting rods (401) of the two supporting pieces (4). 5. The operation method for cleaning the sediment in the inspection well according to claim 2, characterized in that: the top of the cleaning bucket (2) is provided with a rod connecting frame (5), and the rod connecting frame (5) is connected with the rod (1) connection; the top of the grip bar connecting frame (5) is provided with a double-hole ear plate (10), and the bottom of the grip bar (1) is provided with a U-shaped plate (12); the double-hole ear plate (10) includes the first hole and In the second hole, the first hole is hinged with the U-shaped plate (12) through the pivot pin, and the second hole is fixed with the U-shaped plate (12) by the bolt (11). 6. The operation method for cleaning the sediment in the inspection well according to claim 2, characterized in that: the revolving door (3) is connected to the cleaning bucket (2) through the rotating shaft (6), and the rotating shaft (6) is connected to the revolving door A torsion spring is arranged between the sheets (3). 7. The operation method for cleaning the sediment in the inspection well according to claim 2, characterized in that: the upper edge of the baffle (9) is connected to the top edge of the window (8) through a pivot pin; the bottom edge of the cleaning bucket (2) is A wedge-shaped blade (13) is provided. 8. The operation method for cleaning the sediment in the inspection well according to claim 2, characterized in that: the bracket (4) includes an insertion rod (14), and the insertion rod (14) is used to penetrate the outer wall of the cleaning bucket (2) For setting, the outer end of the plunger (14) is connected to the strip (15), and the strip (15) is attached to the outer wall of the cleaning bucket (2) for setting, and the top of the strip (15) bends obliquely upward to form a pressure handle (16), The bend of the strip (15) is provided with an arc-shaped protrusion (17), and the arc-shaped protrusion (17) is hinged with the outer wall of the cleaning bucket (2), and the pressure handle (16) is connected to the cleaning bucket (2) by the spring (18). ) outer wall connection.