CN110152042B

CN110152042B - Novel disinfection cabinet

Info

Publication number: CN110152042B
Application number: CN201910321064.4A
Authority: CN
Inventors: 黄鹏
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-04-22
Filing date: 2019-04-22
Publication date: 2020-08-28
Anticipated expiration: 2039-04-22
Also published as: CN110152042A

Abstract

The invention relates to a novel disinfection cabinet, which comprises a cabinet body with a disinfection cavity, wherein an airflow channel with a fan is arranged outside the disinfection cavity in the cabinet body, the airflow channel is provided with a first port communicated with the outside and a second port communicated with the disinfection cavity, a rotatable ventilation shaft is arranged in the disinfection cavity, an air flow channel is arranged in the ventilation shaft, a vent hole is formed in the side wall of the ventilation shaft, the air flow channel of the ventilation shaft is communicated with the airflow channel through the second port, and the air flow channel is communicated with the disinfection cavity through the vent hole. According to the invention, the exhaust is more uniform through the rotatable ventilation shaft, and the disinfected gas in the disinfection cavity can be thoroughly exhausted, so that the disinfected gas is prevented from remaining in the disinfection cavity, especially the disinfected water vapor is condensed into liquid drops and remains in the disinfection cavity if the disinfected water vapor is not thoroughly exhausted, and further, the bacteria breeding is caused to cause secondary pollution.

Description

Novel disinfection cabinet

Technical Field

The invention relates to the field of disinfection cabinets, in particular to a novel disinfection cabinet capable of exhausting air thoroughly.

Background

The sterilizer is characterized in that an air inlet channel and an air exhaust channel are generally arranged on the existing sterilizer at the same time, high-temperature air inside the sterilizer after the sterilization is finished is exhausted to the outside through the air exhaust channel, particularly, the sterilizer adopting a high-temperature heating mode is required to discharge generated water vapor outwards through the air exhaust channel, and the air inlet channel supplies air to the inside of the sterilizer, so that the pressure balance in the sterilizer can be ensured, and air flow in the sterilizer can be smoothly exhausted. For example, chinese patent application No. 201510697985.2 (CN 105126141A) discloses a disinfection cabinet, wherein an air outlet is disposed at the upper right side of the back of the cabinet, a blower is disposed at the bottom of the cabinet, a timer switch is disposed at the bottom of the front surface of the cabinet, a heating indicator lamp is disposed at one side of the timer switch, an ozone indicator lamp is disposed at one side of the heating indicator lamp, and an air inlet is disposed at one side of the ozone indicator lamp. However, the exhaust of the existing disinfection cabinet is not thorough enough, so that the disinfection effect is not only influenced, but also the water vapor after disinfection remains in the disinfection cabinet and forms liquid water through condensation, thereby causing bacterial breeding and secondary pollution.

Disclosure of Invention

The first technical problem to be solved by the invention is to provide a novel disinfection cabinet with thorough exhaust for the prior art.

The second technical problem to be solved by the present invention is to provide a novel disinfection cabinet capable of automatically opening a door, which can automatically open a door after the disinfection is finished.

The technical scheme adopted for solving the first technical problem is as follows: the utility model provides a novel disinfection cabinet, including the cabinet body that has the disinfection chamber, a serial communication port, be equipped with the airflow channel of utensil fan in the cabinet body in the outside of above-mentioned disinfection chamber, this airflow channel has the first port with external intercommunication and the second port with disinfection chamber intercommunication, be provided with rotatable ventilation shaft in the above-mentioned disinfection chamber, this ventilation shaft is inside to have gas flow channel and set up on its lateral wall with the communicating air vent of this gas flow channel, the gas flow channel of this ventilation shaft communicates with each other with airflow channel through above-mentioned second port, and this gas flow channel communicates with each other with disinfection chamber through the air vent.

Preferably, the ventilation shaft rotates around the axis direction thereof and is arranged in the middle of the sterilization chamber. Therefore, the gas in the disinfection cavity is more uniformly discharged through the ventilation shaft, and the exhaust is more thorough.

In order to ensure that the disinfection cabinet exhausts more uniformly and thoroughly, the vent holes are uniformly distributed on the surface of the vent shaft.

Preferably, the ventilation shaft is vertically arranged in the disinfection cavity, and at least one placing disc for placing the objects to be disinfected is arranged on the ventilation shaft. Thereby the exhaust function with the sterilizer with put the thing function integration and be in the same place for the inner structure of sterilizer is further compact, and can obtain better disinfection effect.

Preferably, the airflow channel is arranged at the top of the disinfection chamber, and an air outlet is arranged on the front side wall of the cabinet body above the disinfection chamber and communicated with the first port. After the disinfection, the disinfected gas in the disinfection cavity is discharged from the front side of the disinfection cabinet through the gas outlet, so that the problem caused by the back exhaust body is effectively solved.

Preferably, the blower is a centrifugal blower and is arranged at the second port of the airflow channel, the ventilation shaft is a hollow shaft, and the upper end of the ventilation shaft is open and is communicated with the first ventilation opening of the blower through a through hole in the top plate of the disinfection chamber.

Preferably, the air flow channel is internally provided with a swinging page transversely along the height direction, the swinging page is hinged with the side wall of the air flow channel, when air flows through the swinging page, the swinging page can rotate along the air flow direction, and when no air flows through the swinging page, the swinging page can block the air flow channel. Like this, the air current is through the time, and the pendulum page or leaf can guide the air current, and no air current is through the time, and the air current passageway is closed to the pendulum page or leaf to can avoid insects such as dust and cockroach to get into the disinfection chamber and cause the pollution to the disinfection chamber.

Further, the technical solution adopted to solve the second technical problem is as follows: the opening of the cabinet body is hinged with a door body, the bottom of the cabinet body is provided with a driving motor, a power output shaft of the driving motor is fixedly provided with a driving gear, the lower end of the ventilation shaft is closed and penetrates out of the bottom of the disinfection cavity and is fixedly provided with a driven gear, and the driven gear is meshed with the driving gear; the bottom of the cabinet body is also provided with a sliding groove and an ejector rod, the sliding groove extends along the length direction of the bottom of the cabinet body, the ejector rod is embedded in the sliding groove and can slide back and forth along the sliding groove, the outer surface of the ejector rod is provided with a tooth surface extending along the length direction of the ejector rod, the driving gear is meshed with the tooth surface, in the disinfection process, the driving force output by the driving motor is transmitted to the rotating shaft to enable the rotating shaft to rotate back and forth in a reciprocating mode and can drive the ejector rod to move back and forth relative to the door body along the sliding groove, when the disinfection is finished, the driving motor drives the rotating shaft to rotate forward or reverse continuously, the number of continuous forward rotation or reverse rotation of the rotating shaft is equal to or greater than the sum of.

In order to effectively realize the reciprocating movement of the ejector rod in the sliding groove in the disinfection state, and after the disinfection is finished, the ejector rod jacks the door body along the sliding groove, the tooth surface is provided with a starting point, two sides of the starting point are respectively provided with a first site and a second site, one side of the second site is provided with a third site, the third site is positioned at a far position of the door body, the driving gear is meshed with the starting point in the initial state, the driving gear reciprocates back and forth between the first site and the starting point as well as between the second site and the starting point in the disinfection state, the driving gear continuously moves along the starting point, the second site and the second site when the disinfection is finished, and one end of the ejector rod slides out of the sliding groove and jacks the door body.

Further, preferably, the length of the sliding groove is equal to the length of the bottom of the cabinet body, one end of the ejector rod close to the door body is a first end, the other end of the ejector rod is a second end, when the driving gear is located at the first position, the second end of the ejector rod is aligned with one end of the sliding groove far from the door body, and when the driving gear is located at the second position, the first end of the ejector rod is aligned with the other end of the sliding groove.

Compared with the prior art, the invention has the advantages that: the air flow channel in the invention can play a role of exhausting air: after disinfection, the fan rotates, and high-humidity gas or disinfection gas (ozone, negative ions and the like) in the disinfection cavity is sucked into the gas flow channel of the ventilation shaft through the vent hole under the action of negative pressure of the fan and then is discharged outside through the gas flow channel.

Drawings

FIG. 1 is a schematic view of a novel disinfection cabinet according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 in another direction;

FIG. 3 is a cross-sectional view taken along the line C-C of FIG. 2;

FIG. 4 is an exploded view of a portion of the novel disinfection cabinet in accordance with an embodiment of the present invention;

FIG. 5 is an enlarged view of portion A of FIG. 4;

FIG. 6 is a schematic view of a portion of the novel disinfection cabinet of the present invention;

FIG. 7 is a schematic view of the structure of FIG. 6 in another direction;

FIG. 8 is a schematic view of another embodiment of the novel disinfection cabinet of the present invention;

FIG. 9 is an enlarged view of portion B of FIG. 8;

FIG. 10 is a partial exploded view of FIG. 6;

FIG. 11 is a schematic view of an embodiment of the present invention showing the structure of an airflow channel;

FIG. 12 is a schematic view of a vent shaft according to an embodiment of the present invention;

fig. 13 is a schematic structural view of a shelf according to an embodiment of the invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1-13, a novel disinfection cabinet, including the cabinet body 1 that has disinfection chamber 10 and the door body 2 of rotation setting on the opening of the cabinet body 1, be provided with ultraviolet lamp 7 on the medial surface of the cabinet body 1 backplate, and the middle part of the disinfection chamber 10 of the cabinet body 1 is vertical to be provided with vent shaft 31, this vent shaft 31 can be rotatory around its self axis direction, and vent shaft 31 is provided with two article trays 32 that are used for placing the article of waiting to disinfect (this embodiment should wait to disinfect article for the tableware) from top to bottom at an interval, in this embodiment, the appearance of each article tray 32 all is circular, two article trays 32 are the level setting respectively, and above-mentioned vent shaft 31 wears to locate the centre of a circle department of placing article tray 32 in proper order. Above-mentioned shaft 31 and two are put thing dish 32 and are constituted rotatable supporter 3 like this, when will treating that the disinfection tableware is placed on putting thing dish 32, the disinfection tableware can be rotatory along with putting thing shelf 3, make ultraviolet ray energy shine one by one and treat the disinfection tableware and shine everywhere to treating the disinfection tableware through the rotation, thereby can effectively avoid the disinfection dead angle, and the centrifugal force of rotatory production enables water and the surface of treating the disinfection tableware and breaks away from, be favorable to treating the quick drying of disinfection tableware, further promote the disinfection effect simultaneously.

Further, the ventilation shaft 31 is a hollow structure, a gas flow channel 310 is formed in the ventilation shaft, the upper end of the ventilation shaft is open, the lower end of the ventilation shaft is closed, ventilation holes 311 are uniformly distributed on the side wall of the ventilation shaft, and the gas flow channel 310 is communicated with the disinfection chamber 10 through the ventilation holes 311. The cabinet 1 is provided with an airflow channel 9 at the top of the disinfection chamber 10, the airflow channel 9 has a first port 91 and a second port 92, and the airflow channel 9 is provided with a fan 93 capable of rotating forward and backward, in this embodiment, the fan 93 is a centrifugal fan. The first port 91 is communicated with the outside, and the gas flow path 9 is communicated with the gas flow path 310 of the ventilation shaft 31 through the second port 92.

The air flow channel 9 in the present invention thus functions as an exhaust: after the disinfection, the fan 93 rotates, and the high humidity gas or the disinfection gas (ozone, negative ions, etc.) in the disinfection chamber 10 is sucked into the gas flow channel 310 through the vent hole 311 under the negative pressure of the fan 93, and then is discharged outside through the gas flow channel 9. In order to solve the problem that the conventional disinfection cabinet generally adopts a rear-discharge type, and the cabinet provided with the disinfection cabinet becomes mildewed and decayed after being used for a long time, an air outlet 12 is formed in the front side wall of the cabinet body 1 above the disinfection cavity 10, an air flow channel 9 is arranged at the top of the disinfection cavity 10, and the air outlet 12 is communicated with the first port 91. After the disinfection is finished, the disinfected gas in the disinfection cavity 10 is discharged from the front side of the disinfection cabinet through the gas outlet 12, and the problem caused by the back exhaust gas is effectively solved. In this embodiment, the fan 93 is disposed at the second port 92 of the airflow path 9, the opening at the upper end of the ventilation shaft 31 communicates with the first ventilation opening 931 of the fan 93 through the through hole 131 in the top plate 13 of the sterilization chamber 10, and the second ventilation opening 932 of the fan 93 communicates with the second port 92 of the airflow path 9. In order to better communicate the vent shaft 31 with the first vent 931 of the blower 93, in this embodiment, the upper port 312 of the vent shaft 31 is flared and covers the through hole 131 of the top plate 13, and in order to achieve a stable installation of the vent shaft 31, the upper end of the vent shaft 31 is fixed on the top plate 13 of the sterilization chamber 10 through a bearing seat 94.

In addition, a flap 95 is provided across the air flow path 9 in the height direction thereof, and the flap 95 is hinged to the top wall of the air flow path 9. When the airflow passes through, the swinging blade 95 can rotate along with the airflow direction, so that the airflow is guided; when no air flow passes through, the flap 95 can block the air flow channel 9, so that dust, cockroaches and other insects can be prevented from entering the disinfection cavity 10 to pollute the disinfection cavity 10.

In this embodiment, the cabinet body 1 is further provided with an air pressure adjusting passage 15, a top plate of the sterilizing chamber 10 is provided with a first air pressure adjusting port 132, a front side wall of the cabinet body 1 above the sterilizing chamber 10 is provided with a second air pressure adjusting port 14, and two ends of the air pressure adjusting passage 15 are respectively communicated with the first and second air

pressure adjusting ports

132, 14. Further, a valve plate 151 is rotatably disposed in the air pressure adjusting passage 15, when the air flow passage 9 exhausts air, the interior of the sterilizing chamber 10 is in a negative pressure state, the valve plate 151 swings inward, the air pressure adjusting passage 15 is in an air intake state, and air outside the sterilizing chamber 10 is supplemented into the chamber, so that normal exhaust of the air flow passage 9 is realized.

Further, the lower end of the ventilation shaft 31 passes through the bottom of the cabinet 1 and extends into a mounting box 4 provided at the bottom of the cabinet 1, the mounting box 4 is provided with a driving motor 331, a driving gear 332 and a driven gear 333, the driving gear 332 is engaged with the driven gear 333, the driving gear 332 is fixed to a power output shaft of the driving motor 331, and the driven gear 333 is fixed to the lower end of the ventilation shaft 31, so that the ventilation shaft 31 can be driven to rotate in the cabinet 1 by the driving motor 331.

The water droplet can be remained to tableware washing rear surface, the tableware is along with the thing frame 3 when rotatory, the water droplet can drip and assemble on the bottom plate 11 of the cabinet body 1, for the water droplet that makes to assemble on the bottom plate 11 can the rapid evaporation, thereby avoid the 1 inner chamber environment of the moist cabinet body to cause secondary pollution to the tableware, further improve the disinfection effect of sterilizer, in this embodiment, the internal surface of bottom plate 11 is high middle part low form all around, the middle part at infrabasal plate 11 is installed to above-mentioned ventilation shaft 31, and the below at this bottom plate 11 middle part is provided with heating device 8. The water drops from the dropping ground on the tableware to be disinfected are gathered in the middle of the bottom plate 11, the heating device 8 heats the accumulated water on the bottom plate 11, and the heating device 8 is a heating pipe in the embodiment. In addition, the bottom plate 11 reflects ultraviolet rays, thereby enhancing the irradiation intensity of ultraviolet rays.

The driving motor 331, the driving gear 332, and the driven gear 333 are provided in the mounting case 4, the mounting case 4 is further provided with a push rod 6 and a slide groove 51 for sliding the push rod 6 back and forth, a tooth surface 61 extending in a longitudinal direction of the push rod 6 is provided on an outer surface of the push rod 6, and the driving gear 332 is engaged with the driven gear 333 and the tooth surface 61, respectively. Specifically, a protruding strip 5 extending along the length direction of the bottom surface of the cabinet 1 is fixed on the bottom of the cabinet 1, the protruding strip 5 is provided with the sliding groove 51 extending along the length direction, the sliding groove 51 is perpendicular to the door 2 when the door 2 is closed, the push rod 6 is embedded in the sliding groove 51 and can slide back and forth relative to the sliding groove 51, and further the push rod 6 can move back and forth relative to the door 2. The end of the top rod 6 close to the door body 2 is a first end 601, and the end far away from the top rod is a second end 602.

During the sterilization process, the driving force output by the driving motor 331 can be transmitted to the first ventilation shaft 31 through the driving gear 332 and the driven gear 333 to make the first ventilation shaft 31 perform forward and reverse reciprocating rotation, and can drive the top rod 6 to reciprocate along the sliding slot 51 relative to the door body 2 through the driving gear 332, when the sterilization is finished, the driving motor 331 drives the first ventilation shaft 31 to continuously rotate forward or reversely, the number of turns of the continuous forward rotation or reverse rotation of the first ventilation shaft 31 is equal to or greater than the sum of the number of turns of the forward and reverse reciprocating rotation of the first ventilation shaft 31, and the top rod 6 slides out of the sliding slot 51 and pushes the door body 2 open. In this embodiment, during the sterilization process, the first ventilation shaft 31 rotates forward for one turn and then rotates backward for one turn, and the operations are repeated in sequence; after the disinfection is finished, the first ventilation shaft 31 rotates forwards and forwards for two circles continuously, so that the push rod 6 pushes the door body 2 open. In this embodiment, the forward rotation is clockwise rotation, and the reverse rotation is counterclockwise rotation.

Specifically, the tooth surface 61 has a starting point 610, the starting point 610 has a first position 611 and a second position 612 on both sides thereof, the second position 612 has a third position 613 on one side thereof, and the third position 613 is located at a far position of the door body 2. In the initial state, the driving gear 332 is engaged with the starting point 610, and in the sterilization state, the driving gear 332 rotates from the starting point 610 to the first position 611, at which the first ventilation shaft 31 rotates in a forward rotation, then returns to the starting point 610 from the first position 611, the first ventilation shaft 31 rotates in a reverse rotation, and then rotates from the starting point 610 to the second position 612, at which the first ventilation shaft 31 rotates in a forward rotation, then returns to the starting point 610 from the second position 612, and the first ventilation shaft 31 rotates in a reverse rotation. Meanwhile, when the driving gear 332 is located at the first position 611, the second end 602 of the push rod 6 is aligned with the end of the slide slot 51 far from the door body 2, and when the driving gear 332 is located at the second position 612, the first end 601 of the push rod 6 is aligned with the other end of the slide slot 51. In the whole disinfection process, the driving gear 332 rotates back and forth between the starting point 610 and the first position point 611 and between the starting point 610 and the second position point 612, and meanwhile, the push rod 6 moves back and forth in the sliding groove 51, so that the first end 601 is not abutted against the door body 2 all the time, and the door body 2 is prevented from being opened by mistake in the disinfection process. When the disinfection is finished, the driving gear 332 continuously rotates along the starting point 610, the second position 612 and the third position 613, and the first end 601 of the top rod 6 continuously slides along the sliding groove 51 to slide out of the sliding groove 51 to abut against the door body 2, so that the door body 2 is pushed open, and the automatic door opening is realized. In this embodiment, the driving gear 332 returns to the starting point 610 after the door 2 is opened, so as to prepare for the next sterilization.

In order to make the first end 601 of the top bar 6 more accurately abut against the door body 2, so as to open the door body 2, a projection 21 extends vertically downward from the bottom of the door body 2, the projection 21 has a trigger portion 211 extending horizontally toward the cabinet body 1, and the trigger portion 211 is opposite to the sliding groove 51. Accordingly, a window 41 for extending the first end of the top bar 6 is opened on the side wall of the mounting box 4, and the window 41 is opposite to the trigger 211.

Claims

1. A novel disinfection cabinet comprises a cabinet body (1) with a disinfection cavity (10), and is characterized in that an airflow channel (9) with a fan (93) is arranged outside the disinfection cavity (10) in the cabinet body (1), the airflow channel (9) is provided with a first port (91) communicated with the outside and a second port (92) communicated with the disinfection cavity (10), a rotatable ventilation shaft (31) is arranged in the disinfection cavity (10), the ventilation shaft (31) is internally provided with an air flow channel (310), the side wall of the ventilation shaft is provided with an air vent (311) communicated with the air flow channel (310), the air flow channel (310) of the ventilation shaft (31) is communicated with the airflow channel (9) through the second port (92), and the air flow channel (310) is communicated with the disinfection cavity (10) through the air vent (311),

the opening of the cabinet body (1) is hinged with a door body (2), the bottom of the cabinet body (1) is provided with a driving motor (331), a driving gear (332) is fixed on a power output shaft of the driving motor (331), the lower end of the ventilation shaft (31) is closed and penetrates out of the bottom of the disinfection cavity (10) and is fixed with a driven gear (333), and the driven gear (333) is meshed with the driving gear (332);

the bottom of the cabinet body (1) is also provided with a sliding groove (51) and an ejector rod (6), the sliding groove (51) extends along the length direction of the bottom of the cabinet body (1), the ejector rod (6) is embedded in the sliding groove (51) and can slide back and forth along the sliding groove (51), the outer surface of the ejector rod (6) is provided with a tooth surface (61) extending along the length direction, the driving gear (332) is meshed with the tooth surface (61),

in the disinfection process, the driving force output by the driving motor (331) is transmitted to the ventilation shaft (31) to enable the ventilation shaft (31) to rotate in a forward and reverse reciprocating way, and the ejector rod (6) can be driven to move back and forth along the sliding groove (51) relative to the door body (2),

when the disinfection is finished, the driving motor (331) drives the ventilation shaft (31) to rotate forwards or backwards continuously, the number of turns of the ventilation shaft (31) rotating forwards or backwards continuously is equal to or more than the sum of the number of turns of the ventilation shaft (31) rotating forwards and backwards in a reciprocating way, and the push rod (6) slides out of the sliding chute (51) and pushes the door body (2) open.

2. A new type of disinfection cabinet as claimed in claim 1, characterized in that said ventilation shaft (31) rotates around its own axis and is arranged in the middle of the disinfection chamber (10).

3. A new type of disinfection cabinet as claimed in claim 2, characterized in that said ventilation holes (311) are evenly distributed on the surface of the ventilation shaft (31).

4. A new type of disinfection cabinet as claimed in claim 3, characterized in that said ventilation shaft (31) is vertically arranged in the disinfection chamber (10), said ventilation shaft (31) being provided with at least one tray (32) for placing the objects to be disinfected.

5. A new type disinfection cabinet as claimed in claim 1, characterized in that said air flow channel (9) is arranged at the top of the disinfection chamber (10), and an air outlet (12) is arranged on the front side wall of the cabinet body (1) above the disinfection chamber (10), said air outlet (12) being in communication with said first port (91).

6. A new type of disinfection cabinet as claimed in claim 5, characterized in that said fan (93) is a centrifugal fan and is arranged at the second port (92) of the air flow channel (9), said ventilation shaft (31) is a hollow shaft, the inner cavity of which is the above-mentioned air flow channel (310), the upper end of said ventilation shaft (31) is open and is communicated with the first ventilation opening (931) of the fan (93) through the through hole (131) on the top plate (13) of the disinfection chamber (10).

7. A new type of disinfection cabinet as claimed in claim 1, characterized in that said air flow channel (9) is laterally separated by a flap (95) along its height direction, said flap (95) being hinged to the side wall of said air flow channel (9), said flap (95) being able to rotate with the air flow direction when the air flow passes through, said flap (95) being able to block said air flow channel (9) when no air flow passes through.

8. A new type of disinfection cabinet as claimed in claim 1, characterized in that said tooth surface (61) has a starting point (610), said starting point (610) has a first point (611) and a second point (612) on both sides, said second point (612) has a third point (613) on one side, and said third point (613) is located at a far position of said door body (2),

in the initial state, the driving gear (332) is meshed with the starting point (610), in the disinfection state, the driving gear (332) rotates back and forth between the first point (611) and the starting point (610) and between the second point (612) and the starting point (610), when disinfection is finished, the driving gear (332) continuously rotates along the starting point (610), the second point (612) and the third point (613), and one end of the ejector rod (6) slides out of the chute (51) and ejects the door body (2).

9. A new type disinfection cabinet as claimed in claim 8, characterized in that said chute (51) is of equal length to the bottom of the cabinet body (1), the end of said top bar (6) close to the door body (2) is the first end (601), the end far away from it is the second end (602),

when the driving gear (332) is located at the first position (611), the second end of the push rod (6) is aligned with the end of the slide groove (51) far away from the door body (2), and when the driving gear (332) is located at the second position (612), the first end of the push rod (6) is aligned with the other end of the slide groove (51).