CN113522871A

CN113522871A - Gynaecology uses apparatus disinfection belt cleaning device

Info

Publication number: CN113522871A
Application number: CN202110693243.8A
Authority: CN
Inventors: 高承香
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-10-22

Abstract

The invention relates to the technical field of instrument disinfection and cleaning, in particular to a gynecological instrument disinfection and cleaning device, which comprises a cleaning mechanism, wherein a driving mechanism is arranged on the cleaning mechanism, a plurality of limiting mechanisms are arranged in the cleaning mechanism, a plurality of closing mechanisms are arranged in the cleaning mechanism, and a locking mechanism is arranged in the closing mechanisms; conveniently carry out a plurality of washings of placing to medical apparatus under the effect through wiper mechanism, the convenience can open and shut control closure mechanism and wiper mechanism under blocked mechanical system's effect, thereby make closure mechanism conveniently place the centre gripping to medical apparatus, thereby prevent that the apparatus from dropping when wasing and prevent simultaneously that the apparatus from sliding the collision and causing the damage, be favorable to highly adjusting control to wiper mechanism under stop gear's effect, thereby conveniently make the apparatus submerge inside the antiseptic solution, the cleaning efficiency has been improved, and conveniently make the apparatus that has washd promote to the antiseptic solution top and dry, make things convenient for the staff to take and place once more simultaneously.

Description

Gynaecology uses apparatus disinfection belt cleaning device

Technical Field

The invention relates to the technical field of instrument disinfection and cleaning, in particular to a gynecological instrument disinfection and cleaning device.

Background

In the clinical work of gynaecology, when medical personnel nurses the patient that has gynaecology's disease, often can use multiple medical instrument, like getting gynaecology's apparatus such as ring ware, obstetric forceps, scalpel, all need wash and disinfect these medical instrument before the apparatus uses and after using to the high cleanliness of the gynaecology's apparatus of guarantee used once more.

However, traditional gynaecology uses apparatus when cleaning and disinfecting in batches, cleaning and disinfecting device function singleness, medical staff need put into the disinfection bucket with the apparatus one by one and disinfect, and the stoving is fished out one by one again after the disinfection, and the washing quantity is limited and has reduced efficiency to come and go back and need medical staff to spend more time, and operation process is loaded down with trivial details.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a gynecological instrument disinfecting and cleaning device.

The technical scheme adopted by the invention for solving the technical problems is as follows: gynaecology uses apparatus disinfection belt cleaning device, including wiper mechanism, the last actuating mechanism that installs of wiper mechanism, wiper mechanism internally mounted has a plurality of stop gear, wiper mechanism internally mounted has a plurality of closing mechanism, closing mechanism internally mounted has blocked mechanical system.

Specifically, the wiper mechanism includes the storage water tank, install two sets of stands on the storage water tank, it is two sets of install two fixed plates on the stand, be connected with two connecting rods on the fixed plate, be equipped with the commentaries on classics board on the storage water tank, the commentaries on classics board rotates with two connecting rods through the pivot to be connected, install a plurality of nets of placing on the commentaries on classics board.

Specifically, the fixed plate is of an I-shaped structure, and the rotating plate is of an octagonal structure with a hollow interior.

Specifically, actuating mechanism includes the bull stick, the fixed plate is inside to be rotated and to be connected with the bull stick, connecting rod and fixed plate are inside to be equipped with two movable slots, the pivot extends to the movable slot inside, the movable slot inside is equipped with the belt, pivot and bull stick pass through the belt and connect.

Specifically, stop gear includes the spacing groove, and is two sets of be equipped with two spacing grooves, two on the stand respectively fixed plate and two sets of stand sliding connection, two fixed plate internally mounted has the push rod of two symmetries, the push rod is reverse "L" shape structure, the push rod passes through extrusion spring and fixed plate sliding connection, be connected with the gag lever post on the push rod, the gag lever post runs through and contradicts in fixed plate and spacing inslot portion, the gag lever post passes through push pedal and the inside sliding connection of fixed plate.

Specifically, gag lever post and spacing groove lateral wall are the arc structure, the push rod extends to the fixed plate outside, be connected with on the push rod and draw the knot, draw and detain for cylindrical structure.

Specifically, the closing mechanism includes the apron, it is connected with a plurality of apron to rotate on the commentaries on classics board, the apron is for falling the trapezium structure, the apron is located places the net top, install on the apron and lead to the net, it communicates with the outside through leading to the net to place the net.

Specifically, apron internally mounted has a plurality of rubber blocks, the rubber block extends to the apron outside, the rubber block is through conflict spring and apron sliding connection.

Specifically, blocked mechanical system includes the bayonet lock, the bayonet lock is "L" shape structure, and is a plurality of the inside sliding connection of apron has the bayonet lock, the bayonet lock extends to the apron outside, be connected with reset spring on the bayonet lock, reset spring conflicts with the apron is inside, it is equipped with the draw-in groove to change the inboard portion, the draw-in groove is "L" shape structure, the bayonet lock runs through in apron and the inside block of draw-in groove.

Specifically, install the guide arm on the bayonet lock, the guide arm runs through inside reset spring extends to the apron, the apron is inside to be equipped with the guide slot, the guide arm passes through guide slot and apron sliding connection, the guide slot degree of depth is greater than guide arm length.

The invention has the beneficial effects that:

(1) the gynecological instrument disinfecting and cleaning device provided by the invention is convenient for placing a plurality of medical instruments under the action of the cleaning mechanism, and is convenient for rotating the cleaning mechanism under the action of the driving mechanism, so that the instruments placed on the cleaning mechanism are cleaned, namely: the fixing plate is conveniently supported under the action of the upright post, the rotating plate is fixed in the water storage tank through the connecting rod under the action of the fixing plate, the instruments can be conveniently placed and fixed under the action of the plurality of placing nets, after the instruments are fixed on the rotating plate, the rotating plate is convenient to clean and disinfect the inside of the water storage tank through the rotation of the rotating plate, the fixing plate is convenient to mount and connect the connecting rod through the I-shaped design, the rotating plate can rotate in the water storage tank, and through the octagonal design of the rotating plate, thereby being convenient for placing various instruments for cleaning, the rotating rod drives the belt to rotate in the movable groove by rotating the rotating rod, being beneficial to rotating the rotating shaft under the action of the belt, therefore, the rotating plate rotates between the two connecting rods, the cleaning efficiency is improved, and simultaneously, the instruments can be cleaned more cleanly under the action of the rotating plate through the forward and backward rotation of the rotating rods.

(2) The gynecological instrument disinfecting and cleaning device can conveniently control the opening and closing of the closing mechanism and the cleaning mechanism under the action of the locking mechanism, so that the closing mechanism can conveniently place and clamp medical instruments, the instruments are prevented from falling off during cleaning, and the instruments are prevented from being damaged due to sliding collision, namely: when the cover plate is rotated to conveniently place medical instruments on the placing net, then the closed cover plate is rotated to clamp the cover plate with the rotating plate, so that the medical instruments on the placing net can be clamped and fixed, disinfectant can conveniently enter the instruments to clean the instruments under the action of the through net, after the cover plate and the rotating plate are rotated and closed, the instruments can be conveniently collided under the action of a plurality of rubber blocks, the instruments are not easy to slide on the placing net to cause collision, the rubber blocks have elasticity under the action of a collision spring, the cover plate can be prevented from being closed due to too tight collision of the instruments, the cover plate and the rotating plate are rotated and closed, so that the clamping pins are clamped and limited with the inner part of the clamping grooves under the action of a reset spring, the cover plate can not be opened, the instruments can not fall off, the clamping pins are separated from the inner part of the clamping grooves under the action of the reset spring when the clamping pins are pushed, and the cover plate can be conveniently opened and taken out or placed with the instruments, the bayonet lock is more stable when sliding under the action of the guide rod and the guide groove, and the bayonet lock is not easy to separate from the cover plate.

(3) The gynecological instrument disinfection and cleaning device is beneficial to adjusting and controlling the height of the cleaning mechanism under the action of the limiting mechanism, so that instruments can be conveniently submerged in disinfectant, the cleaning efficiency is improved, the cleaned instruments are conveniently lifted above the disinfectant to be dried, and meanwhile, workers can conveniently take and place the instruments again, namely: after the fixed plate slides to the stand top, the gag lever post is contradicted with the spacing inslot portion under the effect of push pedal and extrusion spring, thereby it is spacing to fixed plate and stand, be favorable to making the commentaries on classics board be in the storage water tank top outside, conveniently dry the apparatus, when wasing, through promoting the push pedal, the push pedal breaks away from and drives gag lever post and spacing groove separation under the effect of extrusion spring, thereby it is spacing to make the fixed plate slide to the stand bottom, be favorable to making commentaries on classics board and apparatus get into the inside rotation of storage water tank and wash, through gag lever post and the curved design of spacing groove lateral wall, thereby it is spacing to make the gag lever post conveniently slide in the inside block of spacing inslot, conveniently carry out drive control to the push pedal under the effect of drawing the knot.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural diagram of the overall structure of a preferred embodiment of the gynecological instrument disinfection and cleaning device provided by the present invention;

FIG. 2 is an enlarged view of the part A shown in FIG. 1;

FIG. 3 is a schematic view of the connection structure of the cleaning mechanism and the driving mechanism shown in FIG. 2;

FIG. 4 is a schematic view of a connection structure between the cleaning mechanism and the limiting mechanism shown in FIG. 2;

FIG. 5 is a schematic view of the connection between the cleaning mechanism and the closing mechanism shown in FIG. 2;

fig. 6 is an enlarged view of the structure of the portion B shown in fig. 5.

In the figure: 1. the cleaning mechanism comprises a cleaning mechanism body 11, a water storage tank 12, a stand column 13, a rotating plate 14, a fixing plate 15, a rotating shaft 16, a connecting rod 17, a placing net 2, a closing mechanism 21, a cover plate 22, a through net 23, a rubber block 24, a butting spring 3, a driving mechanism 31, a crank handle 32, a rotating rod 33, a belt 34, a movable groove 4, a locking mechanism 41, a clamping pin 42, a clamping groove 43, a return spring 44, a guide rod 45, a guide groove 5, a limiting mechanism 51, a pull buckle 52, a push rod 53, an extrusion spring 54, a limiting rod 55 and a limiting groove.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-6, the gynecological instrument disinfection and cleaning device of the present invention comprises a cleaning mechanism 1, wherein a driving mechanism 3 is installed on the cleaning mechanism 1, a plurality of limiting mechanisms 5 are installed inside the cleaning mechanism 1, a plurality of closing mechanisms 2 are installed inside the cleaning mechanism 1, and a locking mechanism 4 is installed inside the closing mechanisms 2.

Specifically, wiper mechanism 1 includes storage water tank 11, install two sets of stands 12 on storage water tank 11, it is two sets of install two fixed plates 14 on the stand 12, be connected with two connecting rods 16 on the fixed plate 14, be equipped with on the storage water tank 11 and change board 13, it rotates with two connecting rods 16 through pivot 15 to change board 13 and is connected, it installs a plurality of nets 17 of placing to change on the board 13, through it is right to conveniently under the effect of stand 12 fixed plate 14 supports fixed plate 14 makes under the effect of fixed plate 14 it fixes inside storage water tank 11 to change board 13 through connecting rod 16, and is a plurality of it is convenient to place fixedly to the apparatus under the effect of placing net 17, when fixing the apparatus back on changeing board 13, through the rotation convenience of changeing board 13 to the apparatus wash the disinfection inside storage water tank 11.

Specifically, fixed plate 14 is "worker" font structure, commentaries on classics board 13 is the octagon structure of inside fretwork, thereby it is convenient through the design of "worker" font fixed plate 14 installation and right connecting rod 16 connects, is favorable to making commentaries on classics board 13 can storage water tank 11 inside rotates, through the design of commentaries on classics board 13 octagon to conveniently place multiple apparatus and wash work.

Specifically, actuating mechanism 3 includes bull stick 32, the inside bull stick 32 that is connected with that rotates of fixed plate 14, connecting rod 16 and the inside two movable grooves 34 that are equipped with of fixed plate 14, pivot 15 extends to inside the movable groove 34, the inside belt 33 that is equipped with of movable groove 34, pivot 15 and bull stick 32 pass through the belt 33 and connect, through the rotation of bull stick 32 makes the bull stick 32 drive belt 33 rotates at the inside of movable groove 34, is favorable to being in under the effect of belt 33 right pivot 15 rotates, thereby makes the rotor plate 13 is two rotate between the connecting rod 16, has improved abluent efficiency, passes through simultaneously the positive and negative rotation of bull stick 32, thereby makes the apparatus be in wash cleaner under the effect of rotor plate 13.

Specifically, the limiting mechanism 5 includes limiting grooves 55, two sets of the upright posts 12 are respectively provided with two limiting grooves 55, two fixing plates 14 are slidably connected with two sets of the upright posts 12, two symmetrical push rods 52 are installed inside the two fixing plates 14, the push rods 52 are in a reverse "L" shaped structure, the push rods 52 are slidably connected with the fixing plates 14 through extrusion springs 53, limiting rods 54 are connected on the push rods 52, the limiting rods 54 penetrate through the fixing plates 14 and are abutted against the insides of the limiting grooves 55, the limiting rods 54 are slidably connected with the insides of the fixing plates 14 through push plates, after the fixing plates 14 slide to the tops of the upright posts 12, the limiting rods 54 are abutted against the insides of the limiting grooves 55 under the actions of the push rods 52 and the extrusion springs 53, so as to limit the fixing plates 14 and the upright posts 12, and facilitate the rotating plates 13 to be located outside the tops of the water storage tanks 11, the convenience dries the apparatus, and when wasing, through promoting push rod 52, push rod 52 breaks away from drive under extrusion spring 53's the effect gag lever post 54 with spacing groove 55 separation, thereby makes fixed plate 14 slide extremely it is spacing to stand 12 bottom is favorable to making commentaries on classics board 13 and apparatus get into the inside washing that rotates of storage water tank 11.

Specifically, gag lever post 54 and spacing groove 55 lateral wall are the arc structure, push rod 52 extends to the fixed plate 14 outside, be connected with on the push rod 52 and draw knot 51, draw knot 51 to cylindrical structure, through gag lever post 54 with the curved design of spacing groove 55 lateral wall, thereby make gag lever post 54 conveniently slides in spacing groove 55 inside block is spacing draw the effect of knot 51 down conveniently right push rod 52 carries out drive control.

Specifically, closing mechanism 2 includes apron 21, it is connected with a plurality of apron 21 to rotate on changeing the board 13, apron 21 is for falling the trapezium structure, apron 21 is located places net 17 top, install on the apron 21 and lead to net 22, place net 17 through leading to net 22 and outside intercommunication, work as rotating apron 21 is convenient to place medical instrument place on placing net 17, then rotate the closure apron 21 makes apron 21 with change board 13 block, be favorable to right place the instrument centre gripping on the net 17 fixed, through make convenient antiseptic solution gets into and washs the work to the instrument under the effect of net 22.

Specifically, apron 21 internally mounted has a plurality of rubber blocks 23, rubber block 23 extends to apron 21 outside, rubber block 23 is through conflict spring 24 and apron 21 sliding connection, works as apron 21 with it rotates closed back to change board 13, and is a plurality of conveniently contradict the apparatus under the effect of rubber block 23, make the apparatus be in place difficult slip on the net 17 and cause the collision, and make under the effect of conflict spring 24 rubber block 23 has the elasticity, is favorable to preventing to contradict too tightly the messenger to the apparatus apron 21 can't be closed.

Specifically, the locking mechanism 4 comprises a bayonet 41, the bayonet 41 is in an "L" shape, the bayonet 41 is slidably connected inside the cover plates 21, the bayonet 41 extends to the outside of the cover plate 21, a return spring 43 is connected on the bayonet 41, the return spring 43 is abutted against the inner part of the cover plate 21, the rotary plate 13 is internally provided with a clamping groove 42, the clamping groove 42 is in an L-shaped structure, the clamping pin 41 penetrates through the cover plate 21 and is clamped with the clamping groove 42, the cover plate 21 and the rotating plate 13 are closed through rotation, so that the bayonet 41 is clamped and limited with the inside of the bayonet 42 under the action of the return spring 43, the cover plate 21 can not be opened, the appliance can not fall off, when the clamping pin 41 is pushed, the clamping pin 41 is separated from the inside of the clamping groove 42 without the action of the return spring 43, so that the cover plate 21 can be conveniently opened to take out or place an instrument.

Specifically, a guide rod 44 is installed on the bayonet 41, the guide rod 44 penetrates through a return spring 43 and extends into the cover plate 21, a guide groove 45 is formed in the cover plate 21, the guide rod 44 is slidably connected with the cover plate 21 through the guide groove 45, the depth of the guide groove 45 is larger than the length of the guide rod 44, the bayonet 41 is more stable when sliding under the action of the guide rod 44 and the guide groove 45, and the bayonet 41 is not easily separated from the cover plate 21.

When the invention is used, firstly, the fixed plate 14 is conveniently supported under the action of the upright post 12, the rotating plate 13 is fixed in the water storage tank 11 through the connecting rods 16 under the action of the fixed plate 14, instruments are conveniently placed and fixed under the action of the plurality of placing nets 17, after the instruments are fixed on the rotating plate 13, the instruments are conveniently cleaned and disinfected in the water storage tank 11 through the rotation of the rotating plate 13, the fixed plate 14 is conveniently installed and the connecting rods 16 are connected through the I-shaped design, the rotating plate 13 can conveniently rotate in the water storage tank 11, various instruments are conveniently placed for cleaning through the octagonal design of the rotating plate 13, the rotating rod 32 drives the belt 33 to rotate in the movable groove 34 through the rotation of the rotating rod 32, the rotating shaft 15 can conveniently rotate under the action of the belt 33, and the rotating plate 13 can rotate between the two connecting rods 16, the cleaning efficiency is improved, meanwhile, through the forward and backward rotation of the rotating rod 32, the instrument can be cleaned more cleanly under the action of the rotating plate 13, when the rotating cover plate 21 is convenient to place the medical instrument on the placing net 17, then the closed cover plate 21 is rotated, the cover plate 21 is clamped with the rotating plate 13, the instrument on the placing net 17 can be clamped and fixed conveniently, the convenient disinfection solution can enter the instrument to clean under the action of the through net 22, after the cover plate 21 and the rotating plate 13 are rotated and closed, the instrument can be conveniently collided under the action of the plurality of rubber blocks 23, the instrument can not slide easily on the placing net 17 to cause collision, the rubber blocks 23 can be telescopic under the action of the collision springs 24, the cover plate 21 can not be closed tightly due to the collision of the instrument, the cover plate 21 and the rotating plate 13 can be closed through the rotation, so that the clamping pin 41 can be clamped and limited with the inside of the clamping groove 42 under the action of the reset spring 43, the cover plate 21 can not be opened, the apparatus can not fall off, when the bayonet 41 is pushed, the bayonet 41 is separated from the inside of the bayonet 42 under the action of the reset spring 43, the cover plate 21 can be conveniently opened, the apparatus can be taken out or placed, the bayonet 41 can more stably slide under the action of the guide rod 44 and the guide groove 45, the bayonet 41 is not easy to separate from the cover plate 21, when the fixing plate 14 slides to the top of the upright post 12, the limiting rod 54 is abutted against the inside of the limiting groove 55 under the action of the push plate and the extrusion spring 53, the fixing plate 14 is limited with the upright post 12, the rotating plate 13 is beneficial to being positioned at the outer side of the top of the water storage tank 11, the apparatus can be conveniently dried, when the cleaning is carried out, the push plate is pushed, the push plate breaks away from the action of the extrusion spring 53 to drive the limiting rod 54 to be separated from the limiting groove 55, so that the fixing plate 14 slides to the bottom of the upright post 12 for limiting, the rotating plate 13 and the apparatus can enter the water storage tank 11 for rotating cleaning, through the arc-shaped design of the side walls of the limiting rod 54 and the limiting groove 55, the limiting rod 54 conveniently slides into the limiting groove 55 to be clamped and limited, and the push plate is conveniently driven and controlled under the action of the pull buckle 51.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. Gynaecology uses apparatus disinfection belt cleaning device, its characterized in that includes wiper mechanism (1), install actuating mechanism (3) on wiper mechanism (1), wiper mechanism (1) internally mounted has a plurality of stop gear (5), wiper mechanism (1) internally mounted has a plurality of closing mechanism (2), closing mechanism (2) internally mounted has blocked mechanical system (4).

2. The gynecological instrument disinfection and cleaning device according to claim 1, wherein: wiper mechanism (1) is including storage water tank (11), install two sets of stand (12) on storage water tank (11), it is two sets of install two fixed plates (14) on stand (12), be connected with two connecting rods (16) on fixed plate (14), be equipped with on storage water tank (11) and change board (13), it rotates with two connecting rods (16) through pivot (15) to change board (13) and is connected, it installs a plurality of net (17) of placing on board (13).

3. The gynecological instrument disinfection and cleaning device according to claim 2, wherein: the fixing plate (14) is of an I-shaped structure, and the rotating plate (13) is of an octagonal structure with a hollow interior.

4. The gynecological instrument disinfection and cleaning device according to claim 2, wherein: actuating mechanism (3) are including bull stick (32), fixed plate (14) inside rotation is connected with bull stick (32), connecting rod (16) and fixed plate (14) inside are equipped with two activity grooves (34), pivot (15) extend to activity groove (34) inside, activity groove (34) inside is equipped with belt (33), pivot (15) and bull stick (32) are connected through belt (33).

5. The gynecological instrument disinfection and cleaning device according to claim 2, wherein: stop gear (5) are including spacing groove (55), and are two sets of be equipped with two spacing grooves (55) on stand (12) respectively, two fixed plate (14) and two sets of stand (12) sliding connection, two fixed plate (14) internally mounted has push rod (52) of two symmetries, push rod (52) are reverse "L" shape structure, push rod (52) are through extrusion spring (53) and fixed plate (14) sliding connection, be connected with gag lever post (54) on push rod (52), gag lever post (54) run through in fixed plate (14) and the inside conflict of spacing groove (55), gag lever post (54) are through push pedal and fixed plate (14) inside sliding connection.

6. The gynecological instrument disinfection and cleaning device according to claim 5, wherein: the side walls of the limiting rod (54) and the limiting groove (55) are arc-shaped structures, the push rod (52) extends to the outside of the fixing plate (14), the push rod (52) is connected with a pull buckle (51), and the pull buckle (51) is of a cylindrical structure.

7. The gynecological instrument disinfection and cleaning device according to claim 2, wherein: closing mechanism (2) are including apron (21), it is connected with a plurality of apron (21) to rotate on commentaries on classics board (13), apron (21) are the trapezium structure of falling, apron (21) are located places net (17) top, install on apron (21) and lead to net (22), it communicates with the outside through leading to net (22) to place net (17).

8. The gynecological instrument disinfection and cleaning device according to claim 7, wherein: apron (21) internally mounted has a plurality of rubber blocks (23), rubber block (23) extend to apron (21) outside, rubber block (23) are through contradicting spring (24) and apron (21) sliding connection.

9. The gynecological instrument disinfection and cleaning device according to claim 8, wherein: blocked mechanical system (4) include bayonet lock (41), bayonet lock (41) are "L" shape structure, and are a plurality of the inside sliding connection of apron (21) has bayonet lock (41), bayonet lock (41) extend to apron (21) outside, be connected with reset spring (43) on bayonet lock (41), reset spring (43) contradicts with apron (21) inside, it is equipped with draw-in groove (42) to change board (13) inside, draw-in groove (42) are "L" shape structure, bayonet lock (41) run through in apron (21) and draw-in groove (42) inside block.

10. The gynecological instrument disinfection and cleaning device of claim 9, wherein: the guide rod (44) is installed on the bayonet lock (41), the guide rod (44) penetrates through the return spring (43) and extends into the cover plate (21), a guide groove (45) is formed in the cover plate (21), the guide rod (44) is connected with the cover plate (21) in a sliding mode through the guide groove (45), and the depth of the guide groove (45) is larger than the length of the guide rod (44).