CN218793187U

CN218793187U - High-efficient degassing unit is used to building site

Info

Publication number: CN218793187U
Application number: CN202222788369.6U
Authority: CN
Inventors: 王锦飞; 胡畅通; 王海峰; 王伟; 王贺超
Original assignee: Cccc Brilliant Beijing Construction Engineering Group Co ltd
Current assignee: Cccc Brilliant Beijing Construction Engineering Group Co ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-04-07
Anticipated expiration: 2032-10-21

Abstract

The utility model discloses a building site uses high-efficient degassing unit, including shallow and box, box fixed mounting has seted up installation cavity and liquid reserve chamber at the top of shallow in the box, and the installation cavity is located the top in liquid reserve chamber, and the antiseptic solution is equipped with in the liquid reserve chamber memory, and fixed mounting has first motor on the top inner wall of installation cavity, and the (mixing) shaft is installed to liquid reserve intracavity internal rotation, and fixed mounting has the rhombus puddler on the (mixing) shaft. The utility model relates to a rationally, when spraying the antiseptic solution to building site and disinfecting, not only can control atomizer horizontal reciprocating rotation, can also control atomizer up-and-down motion, do not need manual regulation atomizer's high position for at the in-process of spraying the antiseptic solution, atomizer's change that highly can be continuous has increased the scope of spraying the antiseptic solution to building site, has strengthened the disinfection effect to building site, and is more high-efficient comprehensive to the building site disinfection.

Description

High-efficient degassing unit is used to building site

Technical Field

The utility model relates to a disinfecting equipment technical field specifically is a high-efficient degassing unit is used in building site.

Background

Disinfection refers to a method of killing pathogenic microorganisms, but not necessarily bacterial spores, and chemical drugs used for disinfection are called disinfectants, wherein disinfection can be classified into two types of epidemic disinfection and preventive disinfection. On a building site, since the site is a place with complicated human flow, the site needs to be disinfected frequently, and chlorine dioxide disinfectant, 84 disinfectant or other disinfectant is generally used for disinfection treatment when the building site is disinfected. In the prior art, the disinfection measures for the construction site are simple, most of the disinfection measures are that a worker holds a disinfection device by hand to disinfect, and hands are easily contaminated by disinfection water.

The Chinese patent publication with the publication number of CN216417877U aims at the high-efficiency disinfection device for the construction site, and has the technical key points that: including the bottom plate, the top fixedly connected with disinfect box of bottom plate, the inside fixedly connected with baffle of disinfect box, the bottom fixedly connected with backup pad of baffle, the top of backup pad is equipped with the water pump, the top of backup pad and the one side that is located the water pump are equipped with servo motor, the inside of backup pad is rotated and is connected with the puddler, servo motor's output and puddler fixed connection, the top of disinfect box is equipped with the fixed disk, the inside fixedly connected with outlet pipe of fixed disk, the outside of outlet pipe is equipped with the atomizer, the utility model discloses spray disinfection device through the mode of shallow, reduce personnel's contact, with antiseptic solution stirring, the shower nozzle that makes to spray can rotate and spray, can adjust the height of spraying.

Although above-mentioned scheme can be adjusted atomizer's high position, discover in actual operation, need artifical manual operation to adjust atomizer's height, just can carry out different high positions to building site and spray the antiseptic solution, at the in-process that sprays the antiseptic solution, uncontrollable atomizer's high position carries out continuous change, complex operation not only, still lead to spraying the restricted scope of antiseptic solution to building site, it is comprehensive not high-efficient enough to the building site disinfection, for this reason, we propose a high-efficient degassing unit for building site and be used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a high-efficient degassing unit is used to building site has solved the height that needs manual operation to adjust atomizer, just can carry out different high positions to building site and spray the antiseptic solution, at the in-process that sprays the antiseptic solution, uncontrollable atomizer's high position carries out continuous change, and not only complex operation still leads to the scope that sprays the antiseptic solution to building site to be restricted, to the not comprehensive problem of building site disinfection high efficiency inadequately.

(II) technical scheme

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a high-efficient degassing unit is used in building site, includes shallow and box, box fixed mounting has seted up installation cavity and stock solution chamber at the top of shallow in the box, and the installation cavity is located the top in stock solution chamber, and the antiseptic solution is equipped with in the stock solution chamber memory, and fixed mounting has first motor on the top inner wall of installation cavity, and the (mixing) shaft is installed to stock solution intracavity internal rotation, and fixed mounting has the rhombus puddler on the (mixing) shaft, the top of (mixing) shaft extend to the installation intracavity and with the output shaft fixed connection of first motor, be provided with the disinfection mechanism that is used for spraying the antiseptic solution on the box.

Preferably, disinfection mechanism includes the stand, reciprocal lead screw, the lifter plate, hollow vertical axis, atomizer, the booster pump, the pipette, the hose, the transfer line, main belt pulley, vice belt pulley and belt, stand fixed mounting is at the top of box, vertical spout has been seted up on the right side of stand, reciprocal lead screw rotates and installs in vertical spout, lifter plate thread bush is established on reciprocal lead screw, the right side of lifter plate extends outside vertical spout, hollow vertical axis rotates and installs on the lifter plate and is located the right side of stand, atomizer fixed mounting is on the top of hollow vertical axis, the lifter plate is run through to the bottom of hollow vertical axis, booster pump fixed mounting is on the right side outer wall of box, the one end of pipette and the suction end fixed connection of booster pump, the one end that the booster pump was kept away from to the pipette extends to the stock solution intracavity, the bottom of hose and the discharge end fixed connection of booster pump, the bottom of hose and the top fixed connection of hose, the top of hollow vertical axis extends to in the top of hollow vertical axis, the fixed cover of main belt pulley is established on the top of (mixing) shaft, the extension of reciprocal lead screw extends to the installation intracavity, the both ends of belt are established respectively around on main belt pulley and vice belt pulley.

Preferably, disinfection mechanism still includes second motor, sector gear, straight-teeth gear and torsional spring, and second motor fixed mounting is in the bottom of lifter plate and is located the left side of hollow vertical axis, and sector gear fixed mounting is at the output axle head of second motor, and the fixed cover of straight-teeth gear is established in hollow vertical axis and is located the below of lifter plate, and sector gear meshes with the straight-teeth gear mutually, the bottom of torsional spring and the top fixed connection of straight-teeth gear, the top of torsional spring and the bottom fixed connection of lifter plate, and the torsional spring cover is established on hollow vertical axis.

Preferably, a sealing ring is fixedly installed on the inner wall of the hollow vertical shaft, and the infusion tube is in rotary sealing fit with the hollow vertical shaft through the sealing ring.

Preferably, the bottom fixed mounting of lifter plate has the riser that is located hollow vertical axis right side, and the fixed cover is equipped with U type pipe strap on the transfer line, the right-hand member of U type pipe strap and the left side wall fixed connection of riser.

Preferably, a vertical guide rod is fixedly installed in the vertical sliding groove, and the lifting plate is sleeved on the vertical guide rod in a sliding manner.

Preferably, the vertical guide rod is fixedly provided with two stop posts, and the lifting plate is positioned between the two stop posts.

Preferably, fixed mounting has the liquid feeding pipe on the left side outer wall of box, and the liquid feeding pipe is linked together with the stock solution chamber, and the end cover is installed to the top screw thread of liquid feeding pipe, has seted up the outage on the right side inner wall in stock solution chamber, and the end cap is installed to the outage internal thread.

(III) advantageous effects

The utility model provides a building site uses high-efficient degassing unit. The method has the following beneficial effects:

the utility model provides a high-efficient degassing unit is used to building site, through utilizing the stand, reciprocal lead screw, the lifter plate, hollow vertical axis, atomizer, the booster pump, the pipette, the hose, the transfer line, main belt pulley, vice belt pulley, the belt, the second motor, sector gear, the disinfection mechanism that straight-teeth gear and torsional spring combination constitute, at the in-process that sprays the antiseptic solution to building site, not only can control atomizer horizontal reciprocating rotation, can also control atomizer up-and-down reciprocating motion, do not need the high position of manual regulation atomizer, make at the in-process of spraying the antiseptic solution, atomizer highly can continuous change, increased the scope of spraying the antiseptic solution to building site, the disinfection effect to building site has been strengthened, it is more high-efficient comprehensive to the disinfection of building site, solved current high-efficient degassing unit is when using for the building site, need the height of manual operation regulation atomizer, just can carry out not co-altitude position to the building site and spray the antiseptic solution, in-process of spraying the antiseptic solution, the high-position of uncontrollable atomizer carries out continuous change, not only operate loaded down with trivial details, still lead to the restriction of the high-efficient disinfection scope of spraying the building site.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic sectional view of the front view of the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 2.

In the figure: 1. pushing a cart; 2. a box body; 3. a mounting cavity; 4. a liquid storage cavity; 5. a first motor; 6. a stirring shaft; 7. a rhombic stirring rod; 8. a column; 9. a vertical chute; 10. a reciprocating screw; 11. a lifting plate; 12. a hollow vertical shaft; 13. an atomizing spray head; 14. a booster pump; 15. a pipette; 16. a hose; 17. a transfusion tube; 18. a primary pulley; 19. a secondary pulley; 20. a belt; 21. a vertical plate; 22. a U-shaped pipe clamp; 23. a second motor; 24. a sector gear; 25. a spur gear; 26. a torsion spring; 27. a vertical guide rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention, and in the description of the present invention, "plurality" means two or more unless specifically defined otherwise.

As shown in fig. 1-3, the utility model provides a technical solution: the utility model provides a building site uses high-efficient degassing unit, includes shallow 1, box 2 and disinfection mechanism, wherein:

2 fixed mounting of box at the top of shallow 1, it needs to explain, shallow 1 comprises sweep, four universal wheels and handrail combination, the bottom of box 2 has the top fixed connection of sweep, install chamber 3 and stock solution chamber 4 have been seted up in the box 2, install chamber 3 is located the top in stock solution chamber 4, the antiseptic solution is equipped with in the stock solution chamber 4, stock solution chamber 4 is used for the storage to the antiseptic solution that the building site disinfected used, fixed mounting has first motor 5 on the top inner wall of installation chamber 3, (mixing) shaft 6 is installed to the stock solution intracavity 4 internal rotation, fixed mounting has rhombus puddler 7 on the (mixing) shaft 6, the top of (mixing) shaft 6 extends to in the installation chamber 3 and with first motor 5's output shaft fixed connection, first motor 5 is used for controlling (mixing) shaft 6 and rhombus puddler 7 to rotate, utilize rhombus puddler 7, can stir the antiseptic solution in the stock solution chamber 4, avoid the antiseptic solution to stand for a long time and take place deposit or layering, disinfection mechanism sets up on box 2.

The disinfection mechanism is used for spraying disinfectant to a building site for disinfection treatment, and comprises a stand column 8, a reciprocating screw rod 10, a lifting plate 11, a hollow vertical shaft 12, an atomization spray head 13, a booster pump 14, a pipette 15, a hose 16, a liquid conveying pipe 17, a main belt pulley 18, an auxiliary belt pulley 19, a belt 20, a second motor 23, a sector gear 24, a straight gear 25 and a torsion spring 26, wherein the stand column 8 is fixedly arranged at the top of a box body 2, a vertical chute 9 is formed in the right side of the stand column 8, the reciprocating screw rod 10 is rotatably arranged in the vertical chute 9, the lifting plate 11 is sleeved on the reciprocating screw rod 10 in a threaded manner, the right side of the lifting plate 11 extends out of the vertical chute 9, the hollow vertical shaft 12 is rotatably arranged on the lifting plate 11 and is positioned at the right side of the stand column 8, the atomization spray head 13 is fixedly arranged at the top end of the hollow vertical shaft 12, and the lifting plate 11 is in threaded connection and matching with the reciprocating screw rod 10, the vertical reciprocating sliding of the lifting plate 11 in the vertical sliding groove 9 can be controlled, and the up-and-down reciprocating movement of the atomizer 13 can be controlled, so that the height position of the atomizer 13 can be continuously changed, the atomizer 13 is used for atomizing and spraying out disinfectant, the bottom end of the hollow vertical shaft 12 penetrates through the lifting plate 11, the booster pump 14 is fixedly installed on the right outer wall of the box body 2, one end of the pipette 15 is fixedly connected with the suction end of the booster pump 14, one end of the pipette 15, which is far away from the booster pump 14, extends into the liquid storage cavity 4, the bottom end of the hose 16 is fixedly connected with the discharge end of the booster pump 14, the bottom end of the infusion tube 17 is fixedly connected with the top end of the hose 16, the top end of the infusion tube 17 extends into the hollow vertical shaft 12, the booster pump 14 is used for conveying the disinfectant in the liquid storage cavity 4, the main belt pulley 18 is fixedly sleeved on the top end of the stirring shaft 6, and the bottom end of the reciprocating screw 10 extends into the installation cavity 3, the two ends of the belt 20 are respectively wound on the main belt pulley 18 and the auxiliary belt pulley 19, the main belt pulley 18, the auxiliary belt pulley 19 and the belt 20 are utilized to drive, the rotation of the reciprocating screw 10 can be controlled, the second motor 23 is fixedly installed at the bottom of the lifting plate 11 and is positioned on the left side of the hollow vertical shaft 12, the sector gear 24 is fixedly installed at the output shaft end of the second motor 23, the straight gear 25 is fixedly installed on the hollow vertical shaft 12 and is positioned below the lifting plate 11, the sector gear 24 is meshed with the straight gear 25, the bottom end of the torsion spring 26 is fixedly connected with the top of the straight gear 25, the top end of the torsion spring 26 is fixedly connected with the bottom of the lifting plate 11, the torsion spring 26 is sleeved on the hollow vertical shaft 12, the sector gear 24 can be controlled to rotate by the second motor 23, the sector gear 24 is meshed with the straight gear 25 to drive, and is matched with the elastic action of the torsion spring 26, the hollow vertical shaft 12 can be controlled to drive the atomizer 13 to horizontally reciprocate, and further increase the spraying range of the atomizer 13.

Through the structure, the utility model provides a high-efficient degassing unit for building site when spraying antiseptic solution to the building site and disinfecting, not only can control atomizer 13 horizontal reciprocating rotation, can also control atomizer 13 up-and-down reciprocating motion, do not need the high position of manual regulation atomizer 13, make in the process of spraying antiseptic solution, atomizer 13's height can continuous change, increased the scope of spraying antiseptic solution to the building site, the disinfection effect to the building site has been strengthened, it is more efficient comprehensive to the disinfection of building site, when having the operation, push this degassing unit to the place that the building site needs the disinfection, and push this degassing unit in the continuous moving ahead process of uniform velocity, through starting first motor 5, second motor 23 and booster pump 14 operation simultaneously, utilize the operation of first motor 5, the stirring shaft 6, the diamond stirring rod 7 and the main belt pulley 18 can be controlled to rotate, the disinfection solution in the liquid storage cavity 4 can be stirred by the diamond stirring rod 7, the disinfection solution is prevented from settling or layering due to long-term standing, the reciprocating lead screw 10 can be controlled to rotate by the transmission action of the main belt pulley 18, the auxiliary belt pulley 19 and the belt 20, the lifting plate 11 drives the hollow vertical shaft 12, the atomizing spray head 13, the infusion tube 17, the second motor 23, the sector gear 24, the straight gear 25 and the torsion spring 26 to reciprocate up and down, the disinfection solution in the liquid storage cavity 4 can be pumped out and conveyed into the atomizing spray head 13 by utilizing the operation of the booster pump 14, the disinfection solution can be atomized and sprayed out from the atomizing spray head 13, the vertical reciprocating motion of the atomizing spray head 13 is controlled, the height position of the atomizing spray head 13 does not need to be manually adjusted, and the height of the atomizing spray head 13 can be continuously changed in the process of spraying the disinfection solution, increased the scope of spraying the antiseptic solution to building site, through the operation that utilizes second motor 23, second motor 23 drives sector gear 24 rotatory, make sector gear 24 and spur gear 25 carry out intermittent type nature meshing, when sector gear 24 rotate to carry out the meshing transmission with spur gear 25, steerable spur gear 25, hollow vertical shaft 12, atomizer 13 horizontal rotation, torsional spring 26 takes place torsional deformation and produces elasticity this moment, when sector gear 24 rotates to not meshing with spur gear 25, under torsional spring 26's elastic force effect, steerable spur gear 25, hollow vertical shaft 12, atomizer 13 horizontal opposite direction rotates back to the normal position, and then utilize sector gear 24 and spur gear 25's intermittent type meshing transmission effect, steerable atomizer 13 horizontal reciprocating rotation, the scope of spraying the antiseptic solution to building site has further been increased.

In this embodiment, it should be noted that a rechargeable battery pack is fixedly mounted on the cart 1, a control switch is fixedly mounted on the outer wall of the front side of the box body 2, the first motor 5, the booster pump 14, the second motor 23, the control switch and the rechargeable battery pack are electrically connected in sequence through a conducting wire to form a loop, the rechargeable battery pack is used to respectively provide electric energy to the first motor 5, the booster pump 14 and the second motor 23, and the control switch can respectively control the first motor 5, the booster pump 14 and the second motor 23 to be turned on and turned off.

In this embodiment, a sealing ring is fixedly installed on the inner wall of the hollow vertical shaft 12, the infusion tube 17 is in sealing fit with the hollow vertical shaft 12 through the rotation of the sealing ring, and the sealing ring is utilized to seal the gap between the infusion tube 17 and the hollow vertical shaft 12, so as to prevent the disinfectant from flowing out from the bottom end of the hollow vertical shaft 12.

In this embodiment, a vertical plate 21 located on the right side of the hollow vertical shaft 12 is fixedly mounted at the bottom of the lifting plate 11, a U-shaped pipe clamp 22 is fixedly sleeved on the infusion tube 17, the right end of the U-shaped pipe clamp 22 is fixedly connected with the left side wall of the vertical plate 21, and the position of the infusion tube 17 can be fixed by arranging the U-shaped pipe clamp 22 and the vertical plate 21.

In this embodiment, a vertical guide rod 27 is fixedly installed in the vertical sliding groove 9, the lifting plate 11 is slidably sleeved on the vertical guide rod 27, and the vertical guide rod 27 is used for guiding the sliding direction of the lifting plate 11, so that the lifting plate 11 can stably slide in the vertical direction.

In this embodiment, two stop posts are fixedly mounted on the vertical guide rod 27, the lifting plate 11 is located between the two stop posts, and the two stop posts can be used for stopping and limiting the lifting height and the descending height of the lifting plate 11.

In this embodiment, fixed mounting has the liquid feeding pipe on the left side outer wall of box 2, and the liquid feeding pipe is linked together with stock solution chamber 4, and the end cover is installed to the top screw thread of liquid feeding pipe, through setting up liquid feeding pipe and end cover, is convenient for add the benefit antiseptic solution to stock solution chamber 4 in, has seted up the outage on the right side inner wall of stock solution chamber 4, and the end cap is installed to the outage internal thread, through setting up outage and end cap, is convenient for discharge the antiseptic solution in the stock solution chamber 4.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a building site uses high-efficient degassing unit which characterized in that: including shallow (1) and box (2), box (2) fixed mounting be in the top of shallow (1), installation cavity (3) and stock solution chamber (4) have been seted up in box (2), installation cavity (3) are located the top of stock solution chamber (4), the antiseptic solution is equipped with in stock solution chamber (4), fixed mounting has first motor (5) on the top inner wall of installation cavity (3), (mixing) shaft (6) are installed to stock solution chamber (4) internal rotation, fixed mounting has rhombus puddler (7) on (mixing) shaft (6), the top of (mixing) shaft (6) extend to in installation cavity (3) and with the output shaft end fixed connection of first motor (5), be provided with the disinfection mechanism who is used for spraying the antiseptic solution on box (2).

2. The high-efficiency sterilizing apparatus for construction sites according to claim 1, wherein: the disinfection mechanism comprises a stand column (8), a reciprocating lead screw (10), a lifting plate (11), a hollow vertical shaft (12), an atomizing spray head (13), a booster pump (14), a pipette (15), a hose (16), an infusion tube (17), a main belt pulley (18), an auxiliary belt pulley (19) and a belt (20), wherein the stand column (8) is fixedly installed at the top of the box body (2), a vertical sliding groove (9) is formed in the right side of the stand column (8), the reciprocating lead screw (10) is rotatably installed in the vertical sliding groove (9), the lifting plate (11) is in threaded sleeve connection with the pipette (10), the right side of the lifting plate (11) extends to the outside of the vertical sliding groove (9), the hollow vertical shaft (12) is rotatably installed on the lifting plate (11) and is positioned on the right side of the stand column (8), the atomizing spray head (13) is fixedly installed at the top end of the hollow vertical shaft (12), the bottom end of the hollow vertical shaft (12) penetrates through the lifting plate (11), the booster pump (14) is fixedly installed on the outer wall of the box body (2), one end of the booster pump (15) is connected with the liquid storage cavity (14), and the pipette (14) extends to the inside of the booster pump (4), the bottom of hose (16) with the discharge end fixed connection of booster pump (14), the bottom of transfer line (17) with the top fixed connection of hose (16), the top of transfer line (17) extends to in hollow vertical axis (12), the fixed cover of main belt pulley (18) is established the top of (mixing) shaft (6), the bottom of reciprocal lead screw (10) extends to in installation cavity (3), the both ends of belt (20) are around establishing respectively main belt pulley (18) with on vice belt pulley (19).

3. The high-efficiency sterilizing apparatus for construction sites according to claim 2, wherein: disinfection mechanism still includes second motor (23), sector gear (24), straight-teeth gear (25) and torsional spring (26), second motor (23) fixed mounting be in the bottom of lifter plate (11) is located the left side of hollow vertical axis (12), sector gear (24) fixed mounting be in the output axle head of second motor (23), straight-teeth gear (25) fixed cover is established hollow vertical axis (12) is gone up and is located the below of lifter plate (11), sector gear (24) with straight-teeth gear (25) mesh mutually, the bottom of torsional spring (26) with the top fixed connection of straight-teeth gear (25), the top of torsional spring (26) with the bottom fixed connection of lifter plate (11), torsional spring (26) cover is established hollow vertical axis (12) is last.

4. The high-efficiency sterilizing apparatus for construction sites according to claim 2, wherein: the infusion tube is characterized in that a sealing ring is fixedly installed on the inner wall of the hollow vertical shaft (12), and the infusion tube (17) is in rotary sealing fit with the hollow vertical shaft (12) through the sealing ring.

5. The high-efficiency sterilizing apparatus for construction sites according to claim 2, wherein: the bottom fixed mounting of lifter plate (11) has riser (21) that are located hollow vertical axis (12) right side, fixed cover is equipped with U type pipe strap (22) on transfer line (17), the right-hand member of U type pipe strap (22) with the left side wall fixed connection of riser (21).

6. The high-efficiency sterilizing apparatus for construction sites according to claim 2, wherein: a vertical guide rod (27) is fixedly arranged in the vertical sliding groove (9), and the lifting plate (11) is sleeved on the vertical guide rod (27) in a sliding manner.

7. The high-efficiency sterilizing apparatus for construction site as claimed in claim 6, wherein: two stop posts are fixedly mounted on the vertical guide rod (27), and the lifting plate (11) is located between the two stop posts.

8. The high-efficiency sterilizing apparatus for construction sites according to claim 1, wherein: the liquid feeding device is characterized in that a liquid feeding pipe is fixedly mounted on the outer wall of the left side of the box body (2), the liquid feeding pipe is communicated with the liquid storage cavity (4), an end cover is mounted on the top end of the liquid feeding pipe in a threaded mode, a liquid discharging hole is formed in the inner wall of the right side of the liquid storage cavity (4), and a plug is mounted in the liquid discharging hole in a threaded mode.