CN216476165U - Wall spraying device for dampproof primer with automatic adjusting function - Google Patents

Abstract

The utility model discloses a wall spraying device with an automatic adjusting function for moistureproof primer, which comprises a base, wherein the upper end of the base is fixedly connected with two supporting columns, the upper ends of the two supporting columns are fixedly connected with a top plate together, the base is provided with a lifting mechanism, and the lifting mechanism is provided with a lead screw. The lifting mechanism can drive the spray head to lift, so that the spray head can spray the moisture-proof primer on the wall more uniformly, and meanwhile, when the spray head needs to turn and move, the direction of the spray head can be automatically adjusted, so that the moisture-proof primer can be sprayed transversely when the moisture-proof primer is moved transversely after the moisture-proof primer is sprayed vertically on the wall, the convenience of the spraying device is effectively improved, the spraying effect and efficiency of the spraying device are improved, the labor intensity is effectively reduced, and the moisture-proof primer is sprayed on the wall more conveniently, quickly and more uniformly.

Description

Wall spraying device for dampproof primer with automatic adjusting function

Technical Field

The utility model relates to the technical field of wall spraying of moistureproof primer, in particular to a wall spraying device with an automatic adjusting function for moistureproof primer.

Background

In the interior decoration process, in order to ensure the moisture resistance of the wall surface, the wall surface needs to be sprayed with the moisture-proof primer firstly so as to ensure the moisture-proof effect of the wall surface.

However, most of moistureproof priming paints in the prior art are sprayed by manually holding the spraying device, and the manually holding the spraying device has low spraying efficiency, can cause uneven spraying and increases the labor amount of workers, so that the wall spraying device for moistureproof priming paints with an automatic adjusting function is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides a wall surface spraying device with an automatic adjusting function for moistureproof primer.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a wall spraying device with an automatic adjusting function for moistureproof primer comprises a base, wherein two pillars are fixedly connected to the upper end of the base, a top plate is fixedly connected to the upper ends of the two pillars together, a lifting mechanism is arranged on the base, a lead screw is arranged on the lifting mechanism, the lower end of the lead screw is rotatably sleeved on the upper end of the base, the upper end of the lead screw is rotatably connected to the lower end of the top plate, a lifting block is sleeved on the lead screw in a threaded manner, a cross rod is fixedly connected to the middle of one side of the lifting block, one end of the cross rod is rotatably connected with a lifting plate, a shunting device is arranged in the middle of one side of the lifting plate, three spray heads are arranged on the shunting device, a storage box is mounted at the upper end of the base, a hose is arranged on the storage box, one end of the hose is arranged on the shunting device, and a fixed gear is fixedly sleeved on the cross rod, the other side fixed mounting of lifter plate has the cylinder, the flexible end fixedly connected with spur rack of cylinder, the spur rack meshes with the fixed gear mutually.

Preferably, go up and down in order to drive the shower nozzle, make the shower nozzle in the lift in-process to the dampproofing priming paint of wall spraying, can effectual reduction hand labor volume, realize the purpose of the dampproofing priming paint of automatic spraying, elevating system includes the protection casing of fixed mounting in base upper end one side, install servo motor in the protection casing, servo motor sets up on the base, servo motor's output shaft end runs through upper end one side and the fixedly connected with drive gear of base, the lower extreme fixedly connected with drive gear of lead screw, connect through chain drive between drive gear and the drive gear, the upper end of base is fixed with two round bars, and the upper end of two round bars all runs through elevator and fixed connection at the lower extreme of roof.

Preferably, in order to paint the dampproofing priming paint that sprays on the wall, make more even when dampproofing priming paint sprays on the wall, four mountings of one side fixedly connected with of lifter plate rotate jointly between two mountings that set up symmetrically and are connected with the coating roller, all are provided with the coating brush on two coating rollers, and two coating rollers are located diverging device's upper and lower both sides respectively.

Preferably, in order to carry the diverging device with the quick transport of the dampproofing priming paint in the storage case, carry the spraying on the shower nozzle with the dampproofing priming paint through diverging device, install the delivery pump on the hose, delivery pump fixed mounting is in the upper end of base, be provided with the measurement window on the storage case.

Preferably, in order to make the spraying device more convenient when removing, the lower extreme four corners of base all is provided with the universal wheel, one side of base is provided with the pushing hands.

Compared with the prior art, the utility model has the beneficial effects that:

1. through the use of the lifting mechanism, the flow dividing device, the spray head and the coating roller, the lifting mechanism can drive the spray head and the coating roller to lift, so that the spray head can automatically lift in the process of spraying the moistureproof primer on the wall surface, and the coating roller can be used for coating the moistureproof primer sprayed on the wall surface, so that the moistureproof primer can be more uniformly coated on the wall surface, the labor amount can be effectively reduced, and the uniformity and the spraying efficiency of spraying the moistureproof primer can be increased;

2. through the use of the fixed gear, the air cylinder and the spur rack, the spray head can be automatically driven to be adjusted from vertical to horizontal in the spray head spraying process, so that the spraying device has an automatic adjusting function, and after vertical spraying is finished, spraying can be carried out when the spray head moves horizontally, so that the spraying device is more convenient and faster when spraying moistureproof primer on a wall surface, the spraying uniformity can be increased, the spraying efficiency is improved, and the spraying device is more convenient to use;

in conclusion, the lifting mechanism can drive the spray head to lift, so that the spray head can spray the moisture-proof primer on the wall more uniformly, and meanwhile, when the spray head needs to turn and move, the direction of the spray head can be automatically adjusted, so that the moisture-proof primer can be sprayed transversely when the moisture-proof primer is moved transversely after the moisture-proof primer is sprayed vertically on the wall, the convenience of the spraying device is effectively improved, the spraying effect and efficiency of the spraying device are improved, the amount of manual labor is effectively reduced, and the moisture-proof primer is sprayed on the wall more conveniently, quickly and more uniformly.

Drawings

FIG. 1 is a connecting structure diagram of a wall painting device for moisture-proof primer with automatic adjustment function according to the present invention;

FIG. 2 is a side view of a lifting plate of the wall painting apparatus for moisture proof primer with automatic adjustment function according to the present invention;

FIG. 3 is a front view of a lifting plate of the wall painting device for moisture-proof primer with automatic adjustment function of the present invention;

fig. 4 is a schematic diagram of a lifting plate structure of the wall surface spraying device for the moistureproof primer with an automatic adjusting function provided by the utility model.

In the figure: the device comprises a base 1, a support 2, a top plate 3, a protective cover 4, a servo motor 5, a driving gear 6, a chain 7, a transmission gear 8, a lead screw 9, a lifting block 10, a round rod 11, a cross rod 12, a lifting plate 13, a fixed gear 14, a universal gear 15, a cylinder 16, a spur rack 17, a metering window 18, a fixing part 19, a coating roller 20, a coating brush 21, a storage box 22, a delivery pump 23, a hose 24, a shunt 25 and a spray head 26.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example 1

Referring to fig. 1-4, a wall spraying device for moistureproof primer with automatic adjusting function, comprising a base 1, two pillars 2 fixedly connected to the upper end of the base 1, a top plate 3 fixedly connected to the upper ends of the two pillars 2, the base 1 for carrying each component, the moving of the base 1 can drive the matching component on the spraying device to move, the top plate 3 can be carried by the two pillars 2 to keep the top plate 3 stable, the base 1 is provided with a lifting mechanism, the lifting mechanism is provided with a lead screw 9, the lower end of the lead screw 9 is rotatably sleeved on the upper end of the base 1, the upper end of the lead screw 9 is rotatably connected to the lower end of the top plate 3, the lead screw 9 is provided with spiral grains, the matching component can be driven to lift by the rotation of the lead screw 9, the upper end of the lead screw 9 is carried by the top plate 3, the lower end is carried by the base 1, the rotation of the screw 9 can be more stable through the base 1 and the top plate 3.

In the utility model, the lifting mechanism comprises a protective cover 4 fixedly arranged on one side of the upper end of a base 1, a servo motor 5 is arranged in the protective cover 4, the servo motor 5 is arranged on the base 1, the protective cover 4 can protect the servo motor 5, the servo motor 5 is connected with a matching component, stable operation is facilitated, a program can be set, automatic operation is realized, the tail end of an output shaft of the servo motor 5 penetrates through one side of the upper end of the base 1 and is fixedly connected with a driving gear 6, the servo motor 5 can drive the driving gear 6 to rotate, the lower end of a lead screw 9 is fixedly connected with a transmission gear 8, the rotation of the lead screw 9 is driven by the rotation of the transmission gear 8, the driving gear 6 is in transmission connection with the transmission gear 8 through a chain 7, when the driving gear 6 rotates, the transmission gear 8 can be synchronously driven to rotate through the chain 7, and power is provided for the rotation of the screw rod 9.

In the utility model, two round rods 11 are fixed at the upper end of a base 1, the upper ends of the two round rods 11 both penetrate through a lifting block 10 and are fixedly connected to the lower end of a top plate 3, the lifting block 10 is sleeved on a screw 9 in a threaded manner, the lifting block 10 can be pushed by the rotation of the screw 9, the lifting block 10 can slide on the two round rods 11 when lifting, the lifting block 10 can be limited to rotate by the two round rods 11, so that the lifting block 10 can be more stably pushed to lift when the screw 9 rotates, a cross rod 12 is fixedly connected to the middle part of one side of the lifting block 10, one end of the cross rod 12 is rotatably connected with a lifting plate 13, the lifting block 10 can be lifted by driving the lifting plate 13 to lift through the cross rod 12, the lifting plate 13 can rotate on the cross rod 12, and the lifting plate 13 is a part for bearing a part of matched parts.

In the utility model, a flow divider 25 is arranged in the middle of one side of a lifting plate 13, three spray heads 26 are arranged on the flow divider 25, the flow divider 25 and the spray heads 26 are connected with matching components, so that the stable operation is convenient, the program can be set, the operation is automatic, the moistureproof primer can be respectively conveyed into the three spray heads 26 through the flow divider 25, the moistureproof primer can be sprayed by the three spray heads 26, the moistureproof primer can be sprayed on the wall surface, when the moistureproof primer is sprayed on the wall surface by the three spray heads 26, the lifting plate 13 drives the three spray heads 26 to lift, the aim of automatically and vertically spraying the moistureproof primer on the wall surface can be realized, the problem of large amount of manual labor is effectively solved, four fixing members 19 are fixedly connected to one side of the lifting plate 13, a coating roller 20 is jointly and rotatably connected between the two symmetrically arranged fixing members 19, and coating brushes 21 are arranged on the two coating rollers 20, two coating rollers 20 are located diverging device 25's upper and lower both sides respectively, can install two coating rollers 20 on lifter plate 13 through four mountings 19, shower nozzle 26 is behind the wall with dampproofing priming paint spraying, two coating rollers 20 are driven through the lift of lifter plate 13 and are gone up and down, coating brush 21 on the coating roller 20 contradicts at the wall, can spray the dampproofing priming paint that shower nozzle 26 was on the wall through coating brush 21 and carry out even the paining, can effectual spraying effect that improves dampproofing priming paint, make more even spraying of dampproofing priming paint on the wall.

In the utility model, a storage box 22 is installed at the upper end of a base 1, a hose 24 is arranged on the storage box 22, the storage box 22 is used for containing moistureproof primer, the hose 24 can convey the moistureproof primer in the storage box 22, one end of the hose 24 is arranged on a flow dividing device 25, a conveying pump 23 is installed on the hose 24, the conveying pump 23 is fixedly installed at the upper end of the base 1, the conveying pump 23 is connected with a matched component, so that the moistureproof primer in the storage box 22 can be stably operated, a program can be set, the moistureproof primer can be quickly conveyed into the flow dividing device 25 through the conveying pump 23, the moistureproof primer can be automatically sprayed on a wall surface, a metering window 18 is arranged on the storage box 22, a scale is arranged on the metering window 18, and the measurement of the moistureproof primer in the storage box 22 can be observed through the metering window 18.

In the utility model, a fixed gear 14 is fixedly sleeved on a cross rod 12, an air cylinder 16 is fixedly arranged on the other side of a lifting plate 13, a straight rack 17 is fixedly connected with the telescopic end of the air cylinder 16, the straight rack 17 is meshed with the fixed gear 14, the air cylinder 16 is connected with a matching component, so that the stable operation is convenient, a program can be set, the automatic operation is realized, the straight rack 17 can be driven to move through the operation of the air cylinder 16, the straight rack 17 can push the fixed gear 14, the fixed gear 14 is fixed, therefore, when the straight rack 17 is driven to move, the power of the straight rack 17 can be reversely applied to the air cylinder 16 through the meshing with the fixed gear 14, the air cylinder 16 can drive the lifting plate 13 to rotate, the lifting plate 13 rotates by taking the cross rod 12 as an axis, the lifting plate 13 rotates by ninety degrees and can drive two paint rollers 20 and three spray heads 26 to rotate by ninety degrees, thereby can make dampproofing priming paint from the bottom up spraying finish the back, carry out the spraying to next wall position to when removing, the three shower nozzle of automatically regulated 26 and two paint roller 20's direction can realize then that vertical spraying finish the back, also can carry out the spraying when lateral shifting, the effectual practicality and the convenience that has increased this device.

Example 2

Referring to fig. 1-4, a wall spraying device for moistureproof primer with automatic adjusting function, comprising a base 1, two pillars 2 fixedly connected to the upper end of the base 1, a top plate 3 fixedly connected to the upper ends of the two pillars 2, the base 1 for carrying each component, the moving of the base 1 can drive the matching component on the spraying device to move, the top plate 3 can be carried by the two pillars 2 to keep the top plate 3 stable, the base 1 is provided with a lifting mechanism, the lifting mechanism is provided with a lead screw 9, the lower end of the lead screw 9 is rotatably sleeved on the upper end of the base 1, the upper end of the lead screw 9 is rotatably connected to the lower end of the top plate 3, the lead screw 9 is provided with spiral grains, the matching component can be driven to lift by the rotation of the lead screw 9, the upper end of the lead screw 9 is carried by the top plate 3, the lower end is carried by the base 1, the rotation of the screw 9 can be more stable through the base 1 and the top plate 3.

In the utility model, the lifting mechanism comprises a protective cover 4 fixedly arranged on one side of the upper end of a base 1, a servo motor 5 is arranged in the protective cover 4, the servo motor 5 is arranged on the base 1, the protective cover 4 can protect the servo motor 5, the servo motor 5 is connected with a matching component, stable operation is facilitated, a program can be set, automatic operation is realized, the tail end of an output shaft of the servo motor 5 penetrates through one side of the upper end of the base 1 and is fixedly connected with a driving gear 6, the servo motor 5 can drive the driving gear 6 to rotate, the lower end of a lead screw 9 is fixedly connected with a transmission gear 8, the rotation of the lead screw 9 is driven by the rotation of the transmission gear 8, the driving gear 6 is in transmission connection with the transmission gear 8 through a chain 7, when the driving gear 6 rotates, the transmission gear 8 can be synchronously driven to rotate through the chain 7, and power is provided for the rotation of the screw rod 9.

In the utility model, two round rods 11 are fixed at the upper end of a base 1, the upper ends of the two round rods 11 both penetrate through a lifting block 10 and are fixedly connected to the lower end of a top plate 3, the lifting block 10 is sleeved on a screw 9 in a threaded manner, the lifting block 10 can be pushed by the rotation of the screw 9, the lifting block 10 can slide on the two round rods 11 when lifting, the lifting block 10 can be limited to rotate by the two round rods 11, so that the lifting block 10 can be more stably pushed to lift when the screw 9 rotates, a cross rod 12 is fixedly connected to the middle part of one side of the lifting block 10, one end of the cross rod 12 is rotatably connected with a lifting plate 13, the lifting block 10 can be lifted by driving the lifting plate 13 to lift through the cross rod 12, the lifting plate 13 can rotate on the cross rod 12, and the lifting plate 13 is a part for bearing a part of matched parts.

In the utility model, a flow divider 25 is arranged in the middle of one side of a lifting plate 13, three spray heads 26 are arranged on the flow divider 25, the flow divider 25 and the spray heads 26 are connected with matching components, so that the stable operation is convenient, the program can be set, the operation is automatic, the moistureproof primer can be respectively conveyed into the three spray heads 26 through the flow divider 25, the moistureproof primer can be sprayed by the three spray heads 26, the moistureproof primer can be sprayed on the wall surface, when the moistureproof primer is sprayed on the wall surface by the three spray heads 26, the lifting plate 13 drives the three spray heads 26 to lift, the aim of automatically and vertically spraying the moistureproof primer on the wall surface can be realized, the problem of large amount of manual labor is effectively solved, four fixing members 19 are fixedly connected to one side of the lifting plate 13, a coating roller 20 is jointly and rotatably connected between the two symmetrically arranged fixing members 19, and coating brushes 21 are arranged on the two coating rollers 20, two coating rollers 20 are located diverging device 25's upper and lower both sides respectively, can install two coating rollers 20 on lifter plate 13 through four mountings 19, shower nozzle 26 is behind the wall with dampproofing priming paint spraying, two coating rollers 20 are driven through the lift of lifter plate 13 and are gone up and down, coating brush 21 on the coating roller 20 contradicts at the wall, can spray the dampproofing priming paint that shower nozzle 26 was on the wall through coating brush 21 and carry out even the paining, can effectual spraying effect that improves dampproofing priming paint, make more even spraying of dampproofing priming paint on the wall.

In the utility model, a storage box 22 is installed at the upper end of a base 1, a hose 24 is arranged on the storage box 22, the storage box 22 is used for containing moistureproof primer, the hose 24 can convey the moistureproof primer in the storage box 22, one end of the hose 24 is arranged on a flow dividing device 25, a conveying pump 23 is installed on the hose 24, the conveying pump 23 is fixedly installed at the upper end of the base 1, the conveying pump 23 is connected with a matched component, so that the moistureproof primer in the storage box 22 can be stably operated, a program can be set, the moistureproof primer can be quickly conveyed into the flow dividing device 25 through the conveying pump 23, the moistureproof primer can be automatically sprayed on a wall surface, a metering window 18 is arranged on the storage box 22, a scale is arranged on the metering window 18, and the measurement of the moistureproof primer in the storage box 22 can be observed through the metering window 18.

In the utility model, a fixed gear 14 is fixedly sleeved on a cross rod 12, an air cylinder 16 is fixedly arranged on the other side of a lifting plate 13, a straight rack 17 is fixedly connected with the telescopic end of the air cylinder 16, the straight rack 17 is meshed with the fixed gear 14, the air cylinder 16 is connected with a matching component, so that the stable operation is convenient, a program can be set, the automatic operation is realized, the straight rack 17 can be driven to move through the operation of the air cylinder 16, the straight rack 17 can push the fixed gear 14, the fixed gear 14 is fixed, therefore, when the straight rack 17 is driven to move, the power of the straight rack 17 can be reversely applied to the air cylinder 16 through the meshing with the fixed gear 14, the air cylinder 16 can drive the lifting plate 13 to rotate, the lifting plate 13 rotates by taking the cross rod 12 as an axis, the lifting plate 13 rotates by ninety degrees and can drive two paint rollers 20 and three spray heads 26 to rotate by ninety degrees, thereby can make dampproofing priming paint from the bottom up spraying finish the back, carry out the spraying to next wall position to when removing, the three shower nozzle of automatically regulated 26 and two paint roller 20's direction can realize then that vertical spraying finish the back, also can carry out the spraying when lateral shifting, the effectual practicality and the convenience that has increased this device. In the utility model, the four corners of the lower end of the base 1 are respectively provided with the universal wheels 15, one side of the base 1 is provided with the push handle, the universal wheels 15 are wheels which can change steering at will, the push handle can conveniently push the base 1, the push handle and the universal wheels 15 can be used, so that the base 1 can be more conveniently pushed when needing to be moved, and the convenience of the device is effectively improved.

Compared with the embodiment 1, the present embodiment can facilitate pushing the base 1, so that the base 1 is more convenient to move and use.

In the present invention, when used: the base 1 is pushed out of the wall, the operation of the conveying pump 23 is controlled by a matched control device, the conveying pump 23 conveys the moistureproof primer in the storage box 22 into the flow dividing device 25 through the hose 24, the flow dividing device 25 conveys the moistureproof primer into the three spray heads 26 respectively, the three spray heads 26 uniformly spray the moistureproof primer on the wall, meanwhile, the matched control device controls the operation of the servo motor 5, the servo motor 5 drives the driving gear 6 to rotate, the driving gear 6 drives the transmission gear 8 to rotate through the chain 7, the transmission gear 8 drives the lead screw 9 to rotate, the lead screw 9 pushes the lifting block 10 to ascend, the lifting block 10 drives the lifting plate 13 to ascend through the cross rod 12, the lifting plate 13 drives the three spray heads 26 and the two coating rollers 20 to ascend, the moistureproof primer sprayed on the wall by the three spray heads 26 can be uniformly coated, and the moistureproof primer can be more uniformly coated on the wall, when the lifting plate 13 rises to the top plate 3, the cylinder 16 can be controlled to extend through the matched control equipment, the cylinder 16 drives the spur rack 17 to move, the spur rack 17 moves on the fixed gear 14, the cylinder 16 can be driven to rotate by taking the fixed gear 14 as an axis through the fixed gear 14, the cylinder 16 can drive the lifting plate 13 to rotate at ninety degrees, after adjustment is completed, the base 1 is moved to another position, and the spraying device can be moved without delaying the spraying of the wall surface.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims (5)

1. The utility model provides a wall spraying device for dampproofing priming paint with automatically regulated function, includes base (1), its characterized in that: the upper end of the base (1) is fixedly connected with two pillars (2), the upper ends of the two pillars (2) are fixedly connected with a top plate (3) together, a lifting mechanism is arranged on the base (1), a lead screw (9) is arranged on the lifting mechanism, the lower end of the lead screw (9) is rotatably sleeved at the upper end of the base (1), the upper end of the lead screw (9) is rotatably connected with the lower end of the top plate (3), a lifting block (10) is sleeved on the lead screw (9) in a threaded manner, a cross rod (12) is fixedly connected with the middle part of one side of the lifting block (10), one end of the cross rod (12) is rotatably connected with a lifting plate (13), a shunting device (25) is arranged at the middle part of one side of the lifting plate (13), three spray heads (26) are arranged on the shunting device (25), a storage box (22) is installed at the upper end of the base (1), and a hose (24) is arranged on the storage box (22), the one end setting of hose (24) is on diverging device (25), fixed cover has connect fixed gear (14) on horizontal pole (12), the opposite side fixed mounting of lifter plate (13) has cylinder (16), the flexible end fixedly connected with spur rack (17) of cylinder (16), spur rack (17) and fixed gear (14) mesh mutually.

2. The wall surface spraying device with the automatic adjusting function for the moisture-proof primer as claimed in claim 1, is characterized in that: elevating system includes protection casing (4) of fixed mounting in base (1) upper end one side, install servo motor (5) in protection casing (4), servo motor (5) set up on base (1), the output shaft end of servo motor (5) runs through upper end one side and fixedly connected with drive gear (6) of base (1), the lower extreme fixedly connected with drive gear (8) of lead screw (9), connect through chain (7) transmission between drive gear (6) and drive gear (8), the upper end of base (1) is fixed with two round bars (11), and the upper end of two round bars (11) all runs through elevator (10) and the lower extreme of fixed connection in roof (3).

3. The wall surface spraying device with the automatic adjusting function for the moisture-proof primer as claimed in claim 1, is characterized in that: four fixing pieces (19) are fixedly connected to one side of the lifting plate (13), two symmetrically-arranged fixing pieces (19) are connected with a coating roller (20) in a rotating mode, coating brushes (21) are arranged on the two coating rollers (20), and the two coating rollers (20) are located on the upper side and the lower side of the flow dividing device (25) respectively.

4. The wall surface spraying device with the automatic adjusting function for the moisture-proof primer as claimed in claim 1, is characterized in that: the hose (24) is provided with a delivery pump (23), the delivery pump (23) is fixedly arranged at the upper end of the base (1), and the storage box (22) is provided with a metering window (18).

5. The wall surface spraying device with the automatic adjusting function for the moisture-proof primer as claimed in claim 1, is characterized in that: the universal wheels (15) are arranged at four corners of the lower end of the base (1), and a pushing handle is arranged on one side of the base (1).

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