CN214828288U - Cleaning and sterilizing device for elevator handrail - Google Patents

Abstract

An elevator handrail cleaning and disinfecting device comprises: the mounting plate is provided with fixing plates on two sides of the bottom of the mounting plate; the driving mechanism is arranged on the mounting plate between the two fixing plates; the spraying mechanism is arranged on one side, close to the driving mechanism, of the mounting plate; and the scraping mechanism is connected to one side, close to the spraying mechanism, of the mounting plate. The utility model can spray the disinfectant on the elevator handrail through the matching of the driving mechanism and the spraying mechanism, thereby completing the disinfection of the elevator handrail; foreign matters on the handrail of the elevator can be cleaned through the scraping mechanism; the handrail of the elevator can be wiped by the cleaning mechanism, so that the handrail of the elevator can be cleaned and disinfected; the invention can be fixed on the elevator through the fixing mechanism, so that a user can conveniently clean and disinfect the handrail of the elevator; the disinfectant in the liquid storage tank can be conveniently extracted through the vent pipe.

Description

Cleaning and sterilizing device for elevator handrail

Technical Field

The utility model relates to a cleaning and disinfecting device especially relates to an elevator handrail cleaning and disinfecting device.

Background

The handrail elevator is an outdoor elevator with handrails, and is generally present in large facilities such as some malls. Can save the physical power of customers going upstairs and downstairs, thereby having more vigorous energy to shop.

Handrail elevator in the market all need carry out a lot of cleaning and disinfecting every day, at present when carrying out cleaning and disinfecting to elevator handrail, it cleans elevator handrail with the rag that is stained with the antiseptic solution earlier usually, clear up the foreign matter of elevator handrail through the spiller afterwards, then wipe elevator handrail futilely through dry rag, so just need multichannel process to carry out cleaning and disinfecting to elevator handrail, simultaneously clean elevator handrail, clear up the foreign matter and when wiping futilely, it lifts up the arm always to need the workman, work for so long time, workman's arm is sour and painful easily, and it is longer to the time of elevator handrail cleaning and disinfecting.

Therefore, in view of the above-mentioned disadvantages, there is a need to design a cleaning and disinfecting device for an elevator handrail, which can prevent the arm from ache and can quickly clean and disinfect the elevator handrail.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the utility model provides a can prevent that the arm is sore, can be fast to the elevator handrail cleaning and disinfecting device of cleaning and disinfecting for overcome through multichannel process to elevator handrail cleaning and disinfecting, need the workman to lift up the arm for a long time simultaneously and carry out work, so the easy ache of arm, and the longer shortcoming of time that needs.

The technical scheme of the utility model is that: an elevator handrail cleaning and disinfecting device comprises: the mounting plate is provided with fixing plates on two sides of the bottom of the mounting plate; the driving mechanism is arranged on the mounting plate between the two fixing plates; the spraying mechanism is arranged on one side, close to the driving mechanism, of the mounting plate; the scraping mechanism is connected to one side, close to the spraying mechanism, of the mounting plate; two cleaning mechanisms are arranged and are respectively arranged on the two corresponding fixed plates; and four fixing mechanisms are arranged and are respectively installed on the two corresponding fixing plates, and the fixing mechanisms are positioned on the lower side of the cleaning mechanism.

Further, it is particularly preferable that the drive mechanism includes: two vertical plates are arranged and are connected to the bottom of the mounting plate; the rotating shaft is rotatably connected between the two vertical plates; the roller is fixed on the rotating shaft; the gear is arranged on one side of the rotating shaft close to the roller.

Furthermore, it is particularly preferred that the spraying means comprises: the sliding rail is fixedly connected to one side of the mounting plate, which is close to the vertical plate on one side; the rack is slidably mounted on the slide rail, an opening is formed in the mounting plate on the upper side of the rack, and the rack penetrates through the opening; the L-shaped plate is fixedly connected to one side, close to the opening, of the mounting plate; the first spring is connected between the rack and the L-shaped plate; the needle tube is embedded on the other side, close to the opening, of the mounting plate, and a linear groove is formed in the side wall of the needle tube and communicated with the opening; the sliding block is arranged in the needle tube in a sliding manner; the connecting plate is rotatably arranged on the side wall of the fixed block; the rubber plug is connected to the sliding block; the atomizing nozzle is arranged at the bottom of the needle tube; the liquid storage box is fixed on one side of the mounting plate, which is close to the needle tube; the plug cover is arranged at the top of the liquid storage tank in a threaded connection mode; the liquid outlet pipe is arranged between the lower parts of the side walls of the needle tubes at the bottom of the liquid storage box and penetrates through the mounting plate; the one-way valve is arranged on one side of the liquid outlet pipe close to the needle tube.

Furthermore, it is particularly preferred that the atomizing nozzle is detachable from the needle tube.

Further, it is particularly preferable that the scraping mechanism includes: the sliding pipe is fixedly connected to one side of the mounting plate, which is far away from the needle tube; the sliding rod is arranged in the sliding pipe in a sliding manner; the scraper is fixedly connected to the sliding rod; and the second spring is connected between the scraping plate and the sliding pipe and wound on the sliding rod.

Further, it is particularly preferable that the cleaning mechanism includes: two fixing frames which are respectively arranged on the inner side walls of the fixing plates at the two sides; the four third springs are respectively arranged on the fixing frames on the two sides; the two connecting frames are respectively arranged between the two adjacent third springs, and each connecting frame is provided with a sliding chute; two sliding blocks are arranged and are respectively arranged in the corresponding sliding grooves in a sliding manner; the two fourth springs are respectively arranged between the bottom of the sliding block and the connecting frame; and two sponge blocks are arranged and are respectively arranged between the top of the sliding block and the connecting frame.

Further, it is particularly preferable that the fixing mechanism includes: four guide pipes which are respectively arranged on the inner side walls of the fixing plates on the two sides; four guide rods are arranged and are respectively arranged in the corresponding guide pipes in a sliding manner; four rubber blocks are arranged and are respectively fixedly connected with corresponding guide rods; and four fifth springs are arranged and are respectively wound on the corresponding guide rods, one end of each fifth spring is fixedly connected with the guide pipe, and the other end of each fifth spring is fixedly connected with the rubber block.

Further, it is particularly preferable that: the breather pipe is embedded on one side of the liquid storage tank far away from the plug cover.

Advantageous effects

1. The utility model can spray the disinfectant on the elevator handrail through the matching of the driving mechanism and the spraying mechanism, thereby completing the disinfection of the elevator handrail;

2. foreign matters on the handrail of the elevator can be cleaned through the scraping mechanism;

3. the handrail of the elevator can be wiped by the cleaning mechanism, so that the handrail of the elevator can be cleaned and disinfected;

4. the utility model can be fixed on the elevator through the fixing mechanism, thus facilitating the cleaning and disinfection of the elevator handrail for users;

5. the disinfectant in the liquid storage tank can be conveniently extracted through the vent pipe.

Drawings

Fig. 1 is a schematic view of a first three-dimensional structure of the present invention;

fig. 2 is a schematic view of a second three-dimensional structure of the present invention;

fig. 3 is a schematic perspective view of the driving mechanism of the present invention;

fig. 4 is a schematic view of a partial three-dimensional structure of the spraying mechanism of the present invention;

FIG. 5 is a schematic perspective view of the sliding block of the present invention;

fig. 6 is a schematic perspective view of the scraping mechanism of the present invention;

fig. 7 is a schematic perspective view of the cleaning mechanism of the present invention;

fig. 8 is a schematic perspective view of the fixing mechanism of the present invention.

In the above drawings: 1: mounting plate, 2: fixing plate, 3: drive mechanism, 301: riser, 302: rotating shaft, 303: roller, 304: gear-lacking, 4: spraying mechanism, 401: slide rail, 402: rack, 403: opening, 404: l-shaped plate, 405: first spring, 406: needle tube, 407: straight slot, 408: slider, 409: connection plate, 410: rubber stopper, 411: atomizing nozzle, 412: a liquid storage tank, 413: plug, 414: outlet pipe, 415: one-way valve, 5: scraping mechanism, 501: slide, 502: slide bar, 503: scraper, 504: second spring, 6: cleaning mechanism, 601: mount, 602: third spring, 603: connecting frame, 604: sponge block, 605: chute, 606: slider, 607: fourth spring, 7: fixing mechanism, 701: catheter, 702: guide rod, 703: rubber block, 704: fifth spring, 8: a breather tube.

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.

Example 1

As shown in fig. 1 and 2, an elevator handrail cleaning and disinfecting device comprises a mounting plate 1, a fixing plate 2 and a driving mechanism 3, spraying mechanism 4, scrape and get mechanism 5, clearance mechanism 6 and fixed establishment 7, the bottom left and right sides of mounting panel 1 all is provided with fixed plate 2, the bottom of mounting panel 1 is provided with actuating mechanism 3, actuating mechanism 3 is located between two fixed plates 2, be provided with spraying mechanism 4 on mounting panel 1, spraying mechanism 4 is located actuating mechanism 3's rear side, actuating mechanism 3 and spraying mechanism 4 cooperation, be provided with on mounting panel 1 and scrape and get mechanism 5, it is located spraying mechanism 4's rear side to scrape to get mechanism 5, clearance mechanism 6 is all installed at the rear portion of controlling two fixed plates 2, all install two fixed establishment 7 on controlling two fixed plates 2, control two adjacent fixed establishment 7 and cooperate, fixed establishment 7 is located clearance mechanism 6's downside.

When the utility model is needed to be used, the user installs the utility model on the elevator handrail through the fixing mechanism 7, and makes the driving mechanism 3 contact with the handrail, when the elevator works, the handrail rotates clockwise along with the handrail, the driving mechanism 3 works through the clockwise rotation of the handrail, the driving mechanism 3 works to make the spraying mechanism 4 operate, thus the disinfectant can be sprayed on the handrail through the operation of the spraying mechanism 4, and the disinfectant and the foreign matters on the handrail are cleaned through the scraping mechanism 5, the handrail can be wiped through the cleaning mechanism 6, so the cleaning and disinfection of the elevator handrail can be completed, when the cleaning and disinfection of the elevator handrail are completed, the user releases the fixation through the fixing mechanism 7, and the utility model can be taken down from the elevator handrail, through the utility model, the cleaning and disinfection of the elevator handrail are not needed to be carried out through a plurality of processes, and simultaneously the arm ache of the user can be prevented, and can clean and disinfect the handrail of the elevator quickly.

Example 2

On the basis of embodiment 1, as shown in fig. 1, 2 and 3, the driving mechanism 3 includes two risers 301, a rotating shaft 302, a roller 303 and a missing gear 304, the two risers 301 are both connected to the bottom of the mounting plate 1, the rotating shaft 302 is rotatably mounted between the two risers 301, the roller 303 is fixed on the rotating shaft 302, the missing gear 304 is arranged on the rotating shaft 302, and the missing gear 304 is located on the right side of the roller 303.

When the elevator works, the roller 303 can be rotated anticlockwise through the handrail belt, the roller 303 can be rotated anticlockwise to drive the gear 304 to rotate anticlockwise, the gear 304 to rotate anticlockwise can be rotated to enable the spraying mechanism 4 to work, the spraying mechanism 4 can spray the disinfectant on the handrail belt, and the handrail belt can be cleaned and disinfected by scraping the mechanism 5 and the cleaning mechanism 6.

As shown in fig. 1, 2, 3, 4 and 5, the spraying mechanism 4 includes a sliding rail 401, a rack 402, an L-shaped plate 404, a first spring 405, a needle tube 406, a sliding block 408, a connecting plate 409, a rubber stopper 410, an atomizing nozzle 411, a liquid storage tank 412, a stopper 413, a liquid outlet tube 414 and a one-way valve 415, the sliding rail 401 is fixedly connected to the bottom of the mounting plate 1, the sliding rail 401 is located at the rear side of the riser 301, the sliding rail 401 is slidably provided with the rack 402, the mounting plate 1 on the upper side of the rack 402 is provided with an opening 403, the rack 402 passes through the opening 403, the top of the mounting plate 1 is fixedly connected with the L-shaped plate 404, the L-shaped plate 404 is located at the right side of the opening 403, the first spring 405 is fixedly connected between the rack 402 and the L-shaped plate 404, the needle tube 406 is embedded on the mounting plate 1, the needle tube 406 is located at the left side of the opening 403, a straight groove 407 is formed on the upper portion of the right side wall of the needle tube 406, the straight groove 407 is communicated with the opening 403, the straight groove 407, the sliding block 408 is arranged in the needle tube 406, connecting plate 409 is installed to the right side wall upper portion rotary type of sliding block 408, connecting plate 409 passes straight groove 407, connecting plate 409 and rack 402 rigid coupling, the bottom of sliding block 408 is provided with rubber stopper 410, the bottom of needle tubing 406 is provided with atomizing nozzle 411, the top of mounting panel 1 is provided with liquid reserve tank 412, liquid reserve tank 412 is located the left side of needle tubing 406, the top of liquid reserve tank 412 is equipped with stopper lid 413 through threaded connection's mode, be equipped with drain pipe 414 between the bottom of liquid reserve tank 412 and the lateral wall lower part of needle tubing 406, drain pipe 414 passes mounting panel 1, be equipped with check valve 415 on drain pipe 414.

When the utility model is fixed on the elevator handrail, the user makes the atomizing nozzle 411 positioned at the upper side of the elevator handrail, when the gear lack 304 rotates anticlockwise and is meshed with the rack 402, the gear lack 304 rotates anticlockwise continuously, so the rack 402 moves downwards, the first spring 405 stretches along with the gear lack, the rack 402 moves downwards and can make the sliding block 408 move downwards through the connecting plate 409, the sliding block 408 moves downwards and can make the rubber plug 410 move downwards, so the air in the needle tube 406 can be sprayed out through the atomizing nozzle 411, when the gear lack 304 rotates anticlockwise and is not meshed with the gear, the rack 402 can move upwards and reset under the action of the elastic force of the first spring 405, the sliding block 408 moves upwards and can make the rubber plug 410 move upwards and reset along with the sliding block, the rubber plug 410 moves upwards and can suck the disinfectant in the liquid storage tank 412 into the needle tube 406 through the liquid outlet tube 414, can absorb external air through atomizing nozzle 411 simultaneously, when rubber stopper 410 moves down once more, so can spray air and antiseptic solution in the needle tubing 406 on the handrail area through atomizing nozzle 411, through scraping the cooperation of getting mechanism 5 and clearance mechanism 6, the accessible antiseptic solution cleans the disinfection to the handrail area, because the material of liquid reserve tank 412 is transparent material, so can conveniently watch the antiseptic solution in the liquid reserve tank 412, when the antiseptic solution in the liquid reserve tank 412 is less, the user rotates the gag 413 and takes off from the liquid reserve tank 412, and can pour into in the liquid reserve tank 412 proper amount of antiseptic solution, after the antiseptic solution is poured into and is accomplished, the user can with the gag 413 reset.

Example 3

In addition to embodiment 2, as shown in fig. 1 and 6, the scraping mechanism 5 includes a sliding tube 501, a sliding rod 502, a scraping plate 503 and a second spring 504, the sliding tube 501 is fixedly connected to the bottom of the mounting plate 1, the sliding tube 501 is located at the rear side of the needle tube 406, the sliding rod 502 is slidably disposed in the sliding tube 501, the scraping plate 503 is fixedly connected to the bottom end of the sliding rod 502, the second spring 504 is connected between the scraping plate 503 and the sliding tube 501, and the second spring 504 is wound on the sliding rod 502.

When the utility model discloses fix on the elevator, can make scraper blade 503 contact with the handrail area all the time through second spring 504, so accessible scraper blade 503 clears up the foreign matter on to the handrail, and the foreign matter of clearing up simultaneously drops to both sides along with scraper blade 503.

As shown in fig. 1 and 7, the cleaning mechanism 6 includes a fixing frame 601, third springs 602, a connecting frame 603, a sliding block 606, fourth springs 607 and sponge blocks 604, the fixing frame 601 is disposed on the inner side walls of the left and right fixing plates 2, the two third springs 602 are mounted on the fixing frame 601, the connecting frame 603 is mounted between the two adjacent third springs 602, a sliding groove 605 is formed in the connecting frame 603, the sliding block 606 is slidably disposed in the sliding groove 605, the fourth springs 607 are fixedly connected between the bottom of the sliding block 606 and the connecting frame 603, and the sponge blocks 604 are disposed between the top of the sliding block 606 and the connecting frame 603.

When the device is needed to be used, the user moves the connecting frames 603 on the two sides to the outside, the third spring 602 is compressed along with the connecting frames, then the user installs the device on the elevator handrail through the fixing mechanism 7, and the elevator handrail is positioned between the left and right connecting frames 603, then the user loosens the connecting frames 603 on the left and right sides, the sponge blocks 604 on the left and right sides can be moved to contact with the elevator handrail under the action of the elastic force of the third spring 602, when the elevator handrail is thick, the user moves the sliding blocks 606 on the left and right sides downwards, the fourth spring 607 is compressed along with the sliding blocks, when the sliding blocks 606 on the left and right sides are positioned at the lower side of the elevator handrail, the sponge blocks 604 on the left and right sides can be contacted with the elevator handrail under the action of the elastic force of the fourth spring 607, so that the elevator handrail can be wiped by the two sponge blocks 604, thereby cleaning and sterilizing the elevator handrail can be completed, after the completion of elevator handrail cleaning and disinfecting, the user repeats above-mentioned operation and makes the link 603 of the left and right sides keep away from the elevator handrail, and the user removes fixedly through fixed establishment 7 afterwards, then the user will the utility model discloses follow the elevator handrail take off can.

Example 4

On the basis of embodiment 3, as shown in fig. 1 and 8, the fixing mechanism 7 includes a guide pipe 701, a guide rod 702, a rubber block 703 and a fifth spring 704, two guide pipes 701 are installed on the inner side walls of the left and right fixing plates 2, the guide pipe 701 is located at the lower side of the connecting frame 603, the guide rod 702 is installed in the guide pipe 701 in a sliding manner, the rubber block 703 is installed on the guide rod 702, the fifth spring 704 is wound on the guide rod 702, one end of the fifth spring 704 is fixedly connected with the guide pipe 701, and the other end of the fifth spring 704 is fixedly connected with the rubber block 703.

Will when needs the utility model discloses when fixing on the elevator handrail, the user makes about two blocks of rubber 703 that draw close together keep away from mutually, and fifth spring 704 compresses thereupon, and the user will later the utility model discloses place on the elevator handrail, then the user loosens the block of rubber 703 of both sides, can make the block of rubber 703 and the glass contact on the elevator under the effect of fifth spring 704 elasticity, so can accomplish right the utility model discloses a it is fixed, after elevator handrail cleaning and disinfection accomplishes, the user repeats the above-mentioned operation and makes the block of rubber 703 of the left and right sides keep away from mutually, and fifth spring 704 compresses thereupon, the user will afterwards the utility model discloses take off from the elevator handrail can, then the user loosens the block of rubber 703 of both sides, can make block of rubber 703 remove and reset under the effect of fifth spring 704.

As shown in fig. 1 and 2, a vent pipe 8 is further included, the liquid storage tank 412 is embedded with the vent pipe 8, and the vent pipe 8 is located at the front side of the plug cover 413.

The disinfectant in the liquid storage tank 412 can be conveniently extracted through the vent pipe 8.

The above-described embodiments are provided to enable persons skilled in the art to make or use the invention, and many modifications and variations may be made to the above-described embodiments by persons skilled in the art without departing from the inventive concept of the present invention, so that the scope of the invention is not limited by the above-described embodiments, but should be accorded the widest scope consistent with the innovative features set forth in the claims.

Claims (8)

1. The cleaning and disinfecting device for the elevator handrail is characterized by comprising:

the mounting plate (1), the two sides of the bottom of the mounting plate (1) are provided with fixing plates (2);

the driving mechanism (3) is arranged on the mounting plate (1) between the two fixing plates (2);

the spraying mechanism (4) is arranged on one side, close to the driving mechanism (3), of the mounting plate (1);

the scraping mechanism (5) is connected to one side, close to the spraying mechanism (4), of the mounting plate (1);

two cleaning mechanisms (6) are arranged and are respectively arranged on the two corresponding fixed plates (2);

and four fixing mechanisms (7) are arranged and are respectively installed on the two corresponding fixing plates (2), and the fixing mechanisms (7) are positioned on the lower side of the cleaning mechanism (6).

2. An elevator handrail cleaning and disinfecting device according to claim 1, characterized in that the driving mechanism (3) comprises:

two vertical plates (301) are arranged and are connected to the bottom of the mounting plate (1);

the rotating shaft (302) is rotatably connected between the two vertical plates (301);

the roller (303) is fixed on the rotating shaft (302);

and the missing gear (304) is arranged on one side of the rotating shaft (302) close to the roller (303).

3. An elevator handrail cleaning and disinfecting device as claimed in claim 2, characterized in that the spraying means (4) comprises:

the sliding rail (401) is fixedly connected to one side, close to the vertical plate (301) on one side, of the mounting plate (1);

the rack (402) is arranged on the sliding rail (401) in a sliding mode, an opening (403) is formed in the mounting plate (1) on the upper side of the rack (402), and the rack (402) penetrates through the opening (403);

the L-shaped plate (404) is fixedly connected to one side, close to the opening (403), of the mounting plate (1);

a first spring (405) connected between the rack (402) and the L-shaped plate (404);

the needle tube (406) is embedded on the other side, close to the opening (403), of the mounting plate (1), a linear groove (407) is formed in the side wall of the needle tube (406), and the linear groove (407) is communicated with the opening (403);

a sliding block (408) slidably disposed within the needle tube (406);

the connecting plate (409) is rotatably arranged on the side wall of the fixed block;

a rubber plug (410) connected to the sliding block (408);

an atomizing nozzle (411) mounted on the bottom of the needle tube (406);

the liquid storage box (412) is fixed on one side, close to the needle tube (406), of the mounting plate (1);

the plug cover (413) is arranged at the top of the liquid storage tank (412) in a threaded connection mode;

the liquid outlet pipe (414) is arranged between the lower parts of the side walls of the needle tubes (406) at the bottom of the liquid storage box (412), and the liquid outlet pipe (414) penetrates through the mounting plate (1);

and the one-way valve (415) is arranged on one side of the liquid outlet pipe (414) close to the needle tube (406).

4. An elevator handrail cleaning and disinfecting device as claimed in claim 3, characterized in that the atomizing nozzle (411) is detachable from the needle tube (406).

5. A cleaning and disinfecting device for an elevator handrail as claimed in claim 3, characterized in that the scraping means (5) comprises:

the sliding pipe (501) is fixedly connected to one side of the mounting plate (1) far away from the needle tube (406);

the sliding rod (502) is arranged in the sliding pipe (501) in a sliding manner;

a scraper (503) fixedly connected to the sliding rod (502);

and the second spring (504) is connected between the scraper (503) and the sliding pipe (501), and the second spring (504) is wound on the sliding rod (502).

6. An elevator handrail cleaning and disinfecting device as claimed in claim 5, characterized in that the cleaning mechanism (6) comprises:

two fixing frames (601) are arranged and are respectively arranged on the inner side walls of the fixing plates (2) at the two sides;

four third springs (602) are arranged and are respectively arranged on the fixing frames (601) at the two sides;

two connecting frames (603) are arranged and are respectively arranged between two adjacent third springs (602), and a sliding groove (605) is formed in each connecting frame (603);

two sliding blocks (606) are arranged and are respectively arranged in the corresponding sliding grooves (605) in a sliding manner;

two fourth springs (607) are arranged and are respectively arranged between the bottom of the sliding block (606) and the connecting frame (603);

and two sponge blocks (604) are arranged and are respectively arranged between the top of the sliding block (606) and the connecting frame (603) and provided with the sponge blocks (604).

7. An elevator handrail cleaning and disinfecting device according to claim 6, characterized in that the fixing means (7) comprises:

four guide pipes (701) are arranged and are respectively arranged on the inner side walls of the fixing plates (2) at two sides;

four guide rods (702) are arranged and are respectively arranged in the corresponding guide pipes (701) in a sliding manner;

four rubber blocks (703) are arranged and are respectively fixedly connected with the corresponding guide rods (702);

and four fifth springs (704) are arranged and are respectively wound on the corresponding guide rods (702), one end of each fifth spring (704) is fixedly connected with the guide pipe (701), and the other end of each fifth spring (704) is fixedly connected with the rubber block (703).

8. The cleaning and disinfecting device for the handrail of the elevator as claimed in claim 7, further comprising:

the vent pipe (8) is embedded on one side of the liquid storage tank (412) far away from the plug cover (413).

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