CN220936731U

CN220936731U - Liquid sterilizing device

Info

Publication number: CN220936731U
Application number: CN202322896014.3U
Authority: CN
Inventors: 杨晓勇; 苗宇; 陈义
Original assignee: Sichuan Uncle Pop Foodstuff Industrial Co ltd
Current assignee: Sichuan Uncle Pop Foodstuff Industrial Co ltd
Priority date: 2023-05-04
Filing date: 2023-10-26
Publication date: 2024-05-14
Anticipated expiration: 2033-10-26

Abstract

The utility model relates to the technical field of article sterilization, in particular to a body sterilization device which comprises an inner hollow cavity, a conveyor belt and a driving wheel; the cavity is provided with an article inlet and an article outlet, the cavity is provided with a sterilizing liquid nozzle, and the spraying direction of the sterilizing liquid nozzle is aligned to the conveyor belt; the driving wheel comprises a driving wheel, a driven wheel and an intermediate driving wheel, the driving wheel and the driven wheel are respectively arranged at two ends of the conveying belt, the intermediate driving wheel is positioned between the driving wheel and the driven wheel, and the intermediate driving wheel or/and the driving wheel are in transmission connection with the conveying belt through a unidirectional transmission mechanism. By arranging the middle driving wheel, the middle driving wheel drives the conveyor belt at the middle position, so that the driving power of the driving wheel is reduced, and meanwhile, the driving efficiency is improved; and furthermore, the unidirectional transmission mechanism is arranged, so that the normal operation of the whole conveyor belt is not influenced when the driving motor fails.

Description

Liquid sterilizing device

Technical Field

The utility model relates to the technical field of liquid sterilization of articles, in particular to a liquid sterilization device.

Background

In the technical field of liquid sterilization of articles, articles requiring liquid sterilization are often articles with larger mass, such as fruits, cans and the like, or some packages, and a conveyor belt can be driven by a motor with larger power when conveying the articles, so that the driving power is too high.

Disclosure of utility model

The utility model provides a liquid sterilizing device for solving the technical problems, so as to solve the problem of high-power driving of the prior conveyor belt _.

The technical scheme for solving the technical problems is as follows:

the liquid sterilizing device comprises an inner hollow cavity, a conveyor belt and a driving wheel;

One end of the cavity is provided with an article inlet, the other end of the cavity is provided with an article outlet, the cavity is provided with a sterilizing liquid nozzle, and the spraying direction of the sterilizing liquid nozzle is aligned to the conveyor belt;

The conveying belt is arranged in the cavity and is used for conveying the articles from the article inlet to the article outlet;

The driving wheel comprises a driving wheel, a driven wheel and an intermediate driving wheel, the driving wheel and the driven wheel are respectively arranged at two ends of the conveying belt, the intermediate driving wheel is positioned between the driving wheel and the driven wheel, and the intermediate driving wheel or/and the driving wheel are in transmission connection with the conveying belt through a unidirectional transmission mechanism; the intermediate drive wheel is in driving connection with the conveyor belt.

The working principle and the beneficial effects of the utility model are as follows: by arranging the middle driving wheel, the middle driving wheel drives the conveyor belt at the middle position, so that the driving power of the driving wheel is reduced, and meanwhile, the driving efficiency is improved; furthermore, by arranging the unidirectional transmission mechanism, the transmission direction of the unidirectional transmission mechanism is consistent with the movement direction of the conveyor belt, that is, when the driving motor works normally, the driving motor drives the middle driving wheel and the driving wheel through the unidirectional transmission mechanism, so as to provide transmission force for the conveyor belt to move the conveyor belt; when the driving motor does not work (stops rotating), the middle driving wheel and the driving wheel can be separated from the driving motor due to the fact that the unidirectional transmission mechanism drives, and the middle driving wheel and the driving wheel can freely rotate in the moving direction of the conveying belt, that is, the conveying belt can drive the middle driving wheel and the driving wheel to move, normal movement of the whole conveying belt is not affected, and the device cannot stop working.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, the disinfecting liquid nozzle is a wide-angle nozzle.

The beneficial effects of adopting the further scheme are as follows: the wide-angle nozzle can cover a wider range, a wider conveyor belt can be arranged, and the number of products killed at a time is increased.

Further, the disinfection liquid nozzle is a multi-head cleaning nozzle.

The beneficial effects of adopting the further scheme are as follows: the multi-head cleaning nozzle can be used for cleaning and sterilizing different positions in the whole cavity, so that the environmental pollution of the cavity is avoided.

Further, a liquid recovery device is arranged at the bottom of the cavity.

The beneficial effects of adopting the further scheme are as follows: through setting up liquid recovery unit, be convenient for remove the recovery of killing liquid, avoid removing the outflow of killing liquid and influence the environment.

Further, the cavity is provided with a plurality of the sterilizing liquid nozzles.

The beneficial effects of adopting the further scheme are as follows: the plurality of sterilizing liquid nozzles can respectively input different sterilizing liquids to simultaneously sterilize the sterilized articles in different types.

Further, a plurality of the sterilizing liquid nozzles are communicated with each other at the outer side of the cavity, and are provided with sterilizing liquid inlets.

The beneficial effects of adopting the further scheme are as follows: if a sterilizing liquid is adopted for sterilizing, only one sterilizing liquid inlet is arranged, so that the form of sterilizing liquid input is simplified, and the efficiency is improved.

Further, when the conveyor belt is a mesh chain conveyor belt, the middle driving wheel is provided with a groove matched with a framework of the mesh chain conveyor belt for driving connection with the conveyor belt; when the conveyor belt is a chain conveyor belt, the middle driving wheel is provided with a gear matched with the chain and used for driving connection with the conveyor belt; when the conveyor belt is a flat belt, the conveyor belt further comprises a pinch roller structure for pressing and abutting the flat belt and the middle driving wheel.

The beneficial effects of adopting the further scheme are as follows: the net chain conveyor belt is convenient for the liquid to flow down from the killed articles, and meanwhile, the liquid cannot remain on the conveyor belt; and the net chain conveyor belt is formed by nesting frameworks, and the middle driving wheel is directly provided with a groove matched with the frameworks of the net chain conveyor belt for driving connection with the conveyor belt, so that the structure is simpler. When the conveyer belt is the chain conveyer belt, be provided with on the middle drive wheel with the gear of chain matching be used for being connected with the conveyer belt drive, gear drive effect is better. When the conveyor belt is a flat belt, the conveyor belt further comprises a pinch roller structure for pressing and abutting the flat belt with the middle driving wheel, namely, the conveyor belt is in driving connection with the flat belt through friction between the middle driving wheel and the flat belt.

Further, the cavity is composed of a plurality of cavity pup joints, and the cavity pup joints are communicated through connecting pieces; and the cavity pup joints are respectively provided with the disinfection liquid nozzle. .

The beneficial effects of adopting the further scheme are as follows: the connection mode of the cavity pup joint is set to be a plurality of cavity pup joints, so that the length of the cavity is conveniently improved, and meanwhile, the single cavity pup joint is convenient to install.

Based on the technical scheme, the utility model can be improved as follows.

Further, an intermediate drive wheel is provided on the connecting member.

The beneficial effects of adopting the further scheme are as follows: the middle driving wheel is convenient to install and fix.

Based on the technical scheme, the utility model can be improved as follows.

Further, the one-way transmission mechanism is a ratchet mechanism or a one-way clutch mechanism.

The beneficial effects of adopting the further scheme are as follows: the drive motor is very reliably connected with the ratchet mechanism or the unidirectional clutch mechanism.

Drawings

FIG. 1 is a schematic perspective view of a sterilizing unit according to an embodiment of the present utility model;

FIG. 2 is a view in one direction of the first embodiment;

FIG. 3 is another directional view of the first embodiment;

FIG. 4 is a cross-sectional view in one direction of the first embodiment;

FIG. 5 is a cross-sectional view showing the structure of the nozzle in one direction in the first embodiment;

FIG. 6 is a cross-sectional view showing the structure of a nozzle in one direction in the second embodiment;

Fig. 7 is a schematic perspective view of a third embodiment;

FIG. 8 is a cross-sectional view showing a second embodiment of a nozzle structure;

FIG. 9 is a cross-sectional view showing a third embodiment of a nozzle arrangement;

FIG. 10 is a schematic diagram of an embodiment including a plurality of cavity subs;

FIG. 11 is a schematic view of the overall structure of the ratchet mechanism;

FIG. 12 is a schematic view of the ratchet mechanism in a first operating state;

FIG. 13 is a schematic view of the ratchet mechanism in a second operating configuration;

FIG. 14 is a schematic view of the one-way clutch mechanism in a first operating state;

FIG. 15 is a schematic view of the structure of the one-way clutch mechanism in a second operating state;

FIG. 16 is a schematic view of the drive connection of the endless conveyor belt to the intermediate drive wheel;

FIG. 17 is another schematic view of the drive connection of the endless conveyor belt to the intermediate drive wheel;

FIG. 18 is a schematic view of the drive connection of the chain conveyor to the intermediate drive wheel;

Fig. 19 is a schematic view of the drive connection of a flat belt conveyor to an intermediate drive wheel.

In the drawings, the list of components represented by the various numbers is as follows:

1. The device comprises a cavity, 11, an article inlet, 12, an article outlet, 13, a sterilizing liquid nozzle, 14, a liquid recovery device, 15, a sterilizing liquid inlet, 16, a cavity nipple, 17, a connecting piece, 18, a liquid inlet cavity, 19, a foot rest, 2, a conveyor belt, 21, a framework, 22, a chain, 23, a pinch roller, 31, a driving wheel, 32, a driven wheel, 33, an intermediate driving wheel, 331, a groove, 41, a ratchet wheel assembly, 42, a pawl assembly, 51, a wheel connecting section, 52 and a motor connecting section.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

A schematic structural view of a first embodiment of the liquid disinfecting device of the present utility model is shown in fig. 1 to 5. Fig. 2 is a view in the right direction in fig. 1.

The liquid sterilizing device comprises an inner hollow cavity 1, a conveyor belt 2 and a driving wheel; one end of the cavity 1 is provided with an article inlet 11, the other end of the cavity 1 is provided with an article outlet 12, the cavity 1 is provided with a sterilizing liquid nozzle 13, and the liquid spraying direction of the sterilizing liquid nozzle 13 is aligned with the conveyor belt 2; a conveyor belt 2 is arranged inside the chamber 1 for conveying articles from an article inlet 11 to an article outlet 12.

The driving wheel comprises a driving wheel 31, a driven wheel 32 and an intermediate driving wheel 33, the driving wheel 31 and the driven wheel 32 are respectively arranged at two ends of the conveyor belt 2, the intermediate driving wheel 33 is positioned between the driving wheel 31 and the driven wheel 32, and the driving motor is in transmission connection with the intermediate driving wheel 33 through a unidirectional transmission mechanism. Fig. 5 is a cross-sectional view in one direction of the first embodiment, that is, the cross-section through the axis of the cylindrical cavity 1 and the axis of the liquid inlet cavity 18, wherein the square structure is a driving motor, and the driving motor drives the driving wheel 31 and the intermediate driving wheel 33 respectively, and the driving connection structure of the intermediate driving wheel 33 and the conveyor belt 2 can be in various manners, and in particular, different driving connection structures can be adopted according to different conveyor belts, which will be described in detail later.

In this embodiment, as shown in the figure, the cavity 1 has a cylindrical structure in the horizontal direction, two ends of which are provided with end plates, through holes are formed in the end plates, and an article inlet 11 and an article outlet 12 are formed around the through holes. As shown in fig. 4, the sterilizing liquid nozzle 13 penetrates into the cavity 1 through a through hole provided in the cavity 1. As shown in the figure, the other ends of the sterilizing liquid nozzles 13 are communicated with each other outside the chamber 1 to form a liquid inlet chamber 18, and a sterilizing liquid inlet 15 is provided on the liquid inlet chamber 18. The external sanitizing liquid enters the liquid inlet chamber 18 through the sanitizing liquid inlet 15 and is then sprayed onto the sanitized items on the conveyor 2 through the sanitizing liquid nozzle 13.

The working process and principle of the embodiment are as follows: when the liquid-killed articles are required to be killed, the articles are placed on the conveyor belt 2 through the article inlet 11, the driving wheel 31 drives the conveyor belt 2 to move through the motor, meanwhile, the middle driving wheel 33 also drives the conveyor belt 2 to move through the motor, and the middle driving wheel 33 drives the conveyor belt 2 at the middle position due to the arrangement of the middle driving wheel 33, so that the driving power of the driving wheel 31 is reduced, and meanwhile, the driving efficiency is improved. The driving motor is in transmission connection with the middle driving wheel 33 through a one-way transmission mechanism, the transmission direction of the one-way transmission mechanism is consistent with the moving direction of the conveyor belt 2, and when the driving motor works normally, the driving motor drives the middle driving wheel 33 through the one-way transmission mechanism, so that a transmission force is provided for the conveyor belt 2 to move; when the driving motor is not in operation (stops rotating), the driving wheel and the middle driving wheel are separated from the driving motor through the unidirectional transmission mechanism, and the middle driving wheel 33 can freely rotate in the moving direction of the conveyor belt 2, that is, the conveyor belt 2 can drive the middle driving wheel 33 to move, so that the normal movement of the whole conveyor belt 2 is not affected, and the device is not stopped. Furthermore, since the driving motor is separated from the driving wheel 31 and the intermediate driving wheel 33, the driving motor can be set to a quick-change structure, for example, the driving motor and the connecting piece are set to be directly detachable plug-in type, and when the driving motor and the connecting piece need to be replaced, the fault motor is pulled out, and a new driving motor is inserted.

Wherein, the spraying direction of the sterilizing liquid nozzle 13 is opposite to the conveyor belt 2, and the product on the conveyor belt 2 can be completely covered by the sterilizing liquid, thereby ensuring the sterilizing effectiveness.

In this embodiment, the conveyor belt 2 is a mesh-chain conveyor belt, facilitating the flow of liquid down the article to be killed without remaining on the conveyor belt.

In a specific embodiment, the driving motor is also in transmission connection with the driving wheel 31 through a unidirectional transmission mechanism, and the transmission direction of the unidirectional transmission mechanism is consistent with the movement direction of the driving belt 2, when the driving motor of the driving wheel 31 fails and cannot work normally, the driving wheel 31 can rotate freely in the movement direction of the driving belt 2, that is, the driving belt 2 can drive the driving wheel 31 to move, the normal movement of the whole driving belt 2 is not affected, and the device cannot stop working. The double-active driving structure (the driving wheel 31 drives and the middle driving wheel 33) is adopted, and if one driving motor fails and cannot work, the whole killing device can work normally, so that the condition that the whole device is stopped is avoided.

Fig. 6 is a sectional view in one direction of the second embodiment, that is, a sectional view through the axis of the cylindrical cavity 1 and the axis of the liquid inlet cavity 18, and in this embodiment, the difference from the first embodiment is that the bottom of the cavity 1 is provided with the liquid recovery device 14, and the bottom of the cavity 1 is provided with a through hole communicating with the liquid recovery device 14. Through setting up liquid recovery unit, in the disinfection in-process, the disinfection liquid that remains in the bottom of cavity 1 flows in through the through-hole, and liquid recovery unit 14 through the structure of this embodiment to the recovery of the disinfection liquid, has avoided the disinfection liquid to flow out cavity 1 and has caused the influence to the environment.

Fig. 7 is a schematic perspective view of a third embodiment of the liquid disinfecting device, in this embodiment, the difference from the first embodiment is that a maintenance window (for example, two circular structures on the left side of the cavity 1) is provided on the side of the cavity 1, and the two maintenance windows are provided as openable and closable structures, so that when the whole device works normally, the maintenance window is in a closed state, and when maintenance cleaning is required, the maintenance window is opened, and the internal space of the cavity 1 is operated.

Fig. 8 is a cross-sectional view showing a second embodiment of the nozzle structure, in which the sterilizing liquid nozzle 13 is a wide-angle nozzle, and as shown in the drawing, the liquid spraying direction of the nozzle can cover most of the positions inside the cavity 1 in addition to the conveyor belt 2, and sterilizing the inner wall of the cavity 1 at the same time.

Fig. 9 is a cross-sectional view showing a third embodiment of the nozzle structure, in which the sterilizing liquid nozzle 13 is a multi-head cleaning nozzle, and as shown in the drawing, the liquid spraying side of the nozzle covers all positions inside the cavity 1, and when cleaning of the inside of the cavity 1 is required, cleaning of all positions inside the cavity 1 is realized by using the multi-head cleaning nozzle.

FIG. 10 is a schematic structural view of an embodiment of a liquid killing apparatus including a plurality of cavity sub-sections, in this embodiment, the cavity 1 is composed of 3 cavity sub-sections 16, and the 3 cavity sub-sections 16 are communicated through a connecting piece 17; the plurality of cavity sub sections 16 are provided with a sterilizing liquid nozzle 13 (not shown in the drawings) respectively. The intermediate driving wheels 33 are provided on the connecting member 17, that is, in the present embodiment, include 1 driving wheel 31 (a position corresponding to a right driving motor in the drawing), 2 intermediate driving wheels 33 (a position corresponding to two driving motors in the drawing), and 1 driven wheel (a position left in the drawing).

The connection mode of the plurality of cavity pup joints 16 is convenient for improving the length of the cavity 1, and meanwhile, the length of the single cavity pup joint 16 is shorter, so that the installation is convenient.

The unidirectional transmission mechanism is a structural schematic diagram of a ratchet mechanism, see fig. 11 to 13, and as shown in the drawing, the ratchet mechanism comprises a ratchet assembly 41 and a pawl assembly 42, wherein the ratchet assembly 41 is in transmission connection with the driving wheel 31 or the middle driving wheel 33, and the pawl assembly 42 is in transmission connection with an output shaft of a driving motor. As shown in fig. 12, the pawl of the pawl assembly 42 is connected by an elastic member such as a spring to be in an extended state, and when the driving motor is operating normally, the pawl assembly 42 is driven to rotate in the direction of the dotted arrow, the pawl of the pawl assembly 42 abuts against the groove of the ratchet assembly 41, and the ratchet assembly 41 is driven to rotate in the direction of the dotted arrow. As shown in fig. 13, when the driving motor fails and cannot rotate, the ratchet assembly 41 and the pawl assembly 42 are separated from the unidirectional driving relationship, that is, the driving motor connecting the driving wheel 31 or the intermediate driving wheel 33 connected with the ratchet assembly 41 and the pawl assembly 42 is separated from the unidirectional driving transmission relationship, the pawl assembly 42 does not rotate, and the pawl of the pawl assembly 42 is pressed back into the groove of the pawl assembly 42 when the ratchet assembly 41 rotates, so that the ratchet assembly 41 can rotate freely along the direction of the dotted arrow, thereby ensuring the normal movement of the conveyor belt 2.

The unidirectional transmission mechanism is a structural schematic diagram of a unidirectional clutch mechanism, see fig. 14 to 15, and as shown in the drawing, the unidirectional clutch mechanism comprises a wheel connecting section 51 and a motor connecting section 52, wherein the wheel connecting section 51 is in transmission connection with the driving wheel 31 or the middle driving wheel 33, and the motor connecting section 52 is in transmission connection with an output shaft of a driving motor. One end of the wheel connecting section 51 is provided with a unidirectional groove structure, and one end of the motor connecting section 52 is provided with a unidirectional groove structure matched with the unidirectional groove structure, as shown in fig. 14, when the driving motor drives the motor connecting section 52 to rotate along the direction of the arrow of the illustrated dotted line, the wheel connecting section 51 also rotates along the direction of the arrow of the illustrated dotted line due to the mutual limiting effect of the two unidirectional grooves. As shown in fig. 15, when the driving motor fails and cannot rotate, the wheel link section 51 and the motor link section 52 are disengaged from the unidirectional driving relationship, that is, the driving motor, which is connected to the wheel link section 51, of the driving wheel 31 or the intermediate driving wheel 33 and the motor link section 52 is disengaged from the unidirectional driving transmission relationship, the motor link section 52 does not rotate, and the unidirectional grooves of the wheel link section 51 and the unidirectional grooves of the motor link section 52 are separated from each other, so that the wheel link section 51 can freely rotate in the direction of the dotted arrow, thereby ensuring the normal movement of the conveyor belt 2. Specifically, an external elastic connection can be arranged between the motor connecting sections 52 and is in sliding connection with the output shaft of the driving motor in the axial direction, namely, the motor connecting sections 52 can slide on the output shaft, and when the driving motor works normally, the elastic piece applies elastic force to the motor connecting sections 52, so that the motor connecting sections 52 are abutted with the wheel connecting sections 51, and normal transmission is kept to form unidirectional driving; when the driving motor is abnormal, the motor connecting section 52 does not rotate, and the unidirectional groove of the wheel connecting section 51 axially extrudes the unidirectional groove of the motor connecting section 52, so that the motor connecting section 52 moves to the right in the drawing, and the wheel connecting section 51 and the motor connecting section 52 are separated from each other in a transmission relationship, and thus, the wheel connecting section 51 can rotate freely.

In a specific embodiment, the cavity 1 may be an integral cylindrical structure formed by integral injection molding, or may be a cylindrical structure formed by splicing a plurality of components. The cavity 1 may be provided in a square configuration, an oval configuration, etc. in order to use different configurations and environments.

The examples of the driving connection of the intermediate drive wheel 33 with the conveyor belt 2 are mainly described by way of example in three types.

Fig. 16 and 17 are schematic views of a drive connection structure of the mesh belt and the intermediate drive wheel, wherein fig. 16 is a cross-sectional view of the intermediate drive wheel, and fig. 17 is a plan view of the belt and the intermediate drive wheel. Specifically, when the mesh chain conveyor belt is fastened to form a conveyor belt through a framework, for example, the mesh chain conveyor belt comprises a framework 21, the framework 21 is fastened to form a conveyor belt 2, a groove 331 matched with the framework 21 is formed in the outer circumference of the middle driving wheel 33, as shown in fig. 16, the groove 331 is provided with a cross structure matched with the framework 21, and the 2 frameworks 21 are located in the groove 331. In fig. 17, a plurality of bobbins 21 are positioned in the grooves 331 in the horizontal and vertical directions as shown, and thus, the intermediate driving wheel 33 moves the bobbins 21 through the grooves 331 to move the entire conveyor belt.

Fig. 18 is a schematic view of a driving connection structure of the chain conveyor belt and the intermediate driving wheel, specifically, if the entire conveyor belt 2 has a chain structure, gears matching with the chain may be provided on the outer circumference of the entire intermediate driving wheel 33, thereby realizing driving of the conveyor belt 2. If the conveyor belt 2 is provided with chains 22 on both sides only, it is possible to provide gears for driving the conveyor belt 2 only at positions where both ends of the intermediate driving wheel 33 match the chain structure.

Fig. 19 is a schematic diagram of a driving connection structure between a flat belt conveyor and an intermediate driving wheel, and as shown in the drawing, the conveyor belt 2 is a flat belt, a pinch roller structure is arranged on the outer side of the flat belt at this time, the conveyor belt 2 is pressed against the intermediate driving wheel 33 by the pinch roller 23, and the conveyor belt 2 is driven to move due to the action of friction force when the intermediate driving wheel rotates 33. The pressing wheel 23 is fixedly connected with the cavity 1 by being arranged on a bracket, and the pressing wheel rotates along with the driving process of the conveyor belt 2. Meanwhile, the correction can be performed on the conveyor belt 2 of the flat belt through the pressing wheel, specifically, a driving mechanism is arranged in the axial direction of the pressing wheel 23, the pressing wheel 23 is driven to axially generate the flat belt, namely, in the transmission process of the conveyor belt 2, the pressing wheel 23 can generate correction friction force perpendicular to the transmission direction of the conveyor belt 2, and the conveyor belt 2 can gradually move in the direction of the correction friction force to achieve correction. In this case, for better driving of the flat belt, a pinch roller 22 is also provided as shown in the opposite direction to the first pinch roller 23, so that the driving effect of the intermediate drive wheel 33 on the conveyor belt 2 is better.

In a specific embodiment, the belt may be arranged in a chain drive manner for any type of conveyor belt, that is to say in the case of a flat belt, the chain drive may be realized by arranging chain structures on both sides of the flat belt.

The foregoing is only illustrative of the present utility model and is not to be construed as limiting thereof, but rather as various modifications, equivalent arrangements, improvements, etc., within the spirit and principles of the present utility model.

Claims

1. The liquid sterilizing device is characterized by comprising an inner hollow cavity (1), a conveyor belt (2) and a driving wheel;

One end of the cavity (1) is provided with an article inlet (11), the other end of the cavity (1) is provided with an article outlet (12), the cavity (1) is provided with a sterilizing liquid nozzle (13), and the spraying direction of the sterilizing liquid nozzle (13) is aligned with the conveyor belt (2);

The conveyor belt (2) is arranged inside the cavity (1) and is used for conveying articles from the article inlet (11) to the article outlet (12);

the driving wheel comprises a driving wheel (31), a driven wheel (32) and an intermediate driving wheel (33), the driving wheel (31) and the driven wheel (32) are respectively arranged at two ends of the conveying belt (2), the intermediate driving wheel (33) is positioned between the driving wheel (31) and the driven wheel (32), and a driving motor is in transmission connection with the intermediate driving wheel (33) or/and the driving wheel (31) through a unidirectional transmission mechanism; the intermediate drive wheel (33) is in driving connection with the conveyor belt (2).

2. A liquid disinfection apparatus as claimed in claim 1, wherein said disinfection liquid nozzle (13) is a wide angle nozzle.

3. A liquid disinfection apparatus as claimed in claim 1, wherein said disinfection liquid nozzle (13) is a multi-headed cleaning nozzle.

4. A liquid disinfection apparatus as claimed in claim 1, wherein the bottom of said chamber (1) is provided with liquid recovery means (14).

5. A liquid disinfection apparatus as claimed in claim 1, wherein said chamber (1) is provided with a plurality of said disinfection liquid nozzles (13).

6. A liquid sanitizing device according to claim 5, wherein a plurality of said sanitizing liquid nozzles (13) are in communication with each other outside said chamber (1) and are provided with sanitizing liquid inlets (15).

7. A liquid disinfection apparatus as claimed in any one of claims 1-6, wherein when said conveyor belt (2) is a mesh chain conveyor belt, said intermediate drive wheel (33) is provided with grooves matching the skeleton of said mesh chain conveyor belt for driving connection with said conveyor belt (2); when the conveyor belt (2) is a chain conveyor belt, the middle driving wheel (33) is provided with a gear matched with the chain for driving connection with the conveyor belt (2); when the conveyor belt (2) is a flat belt, the belt further comprises a pinch roller structure for pressing the flat belt against the intermediate driving wheel (33).

8. A liquid disinfection apparatus as claimed in any one of claims 1 to 6, wherein said cavity (1) is formed by a plurality of cavity sub-sections (16), a plurality of said cavity sub-sections (16) being connected by a connector (17); the cavity pup joints (16) are respectively provided with the disinfection liquid nozzle (13).

9. A liquid disinfection apparatus as claimed in claim 8, wherein said intermediate drive wheel (33) is provided on said connecting member (17).

10. A liquid disinfecting device according to any one of claims 1 to 6 wherein the one-way transmission mechanism is a ratchet mechanism or a one-way clutch mechanism.