Clinical medicine medical instrument cleaning and disinfecting device

Abstract

The invention discloses a clinical medicine medical instrument cleaning and disinfecting device which comprises a main bin and a sorting bin connected with the side edge of the main bin, a high-temperature disinfecting bin and a drying bin are arranged in the main bin, a bin door rotationally connected with the main bin is arranged on the main bin, and a drying motor is installed on the main bin. Moving wheels are installed at the four corners of the lower end of the main bin, and a protective cover rotationally connected with the main bin is arranged on the side edge of the main bin. The collecting frame is arranged in the high-temperature disinfection bin, and the collecting frame is of a hollow structure. By opening a bin door on a main bin, used instruments needing to be disinfected are directly placed in a collecting frame, a driving motor operates to drive a first driving rod to rotate around a second driving rod, and the collecting frame is driven to operate to be matched with limiting sliding rods on the two sides of the collecting frame to conduct the collecting frame downwards till the collecting frame is collected into a heating water bin; the instruments are continuously boiled through high-temperature boiling water for disinfection, and the disinfection is direct, rapid and efficient.

Description

Technical Field

[0001] The invention relates to the technical field of medical device cleaning, in particular to a cleaning and disinfecting device for clinical medical devices. Background Art

[0002] Clinical medical devices refer to devices used in clinical medical activities; clinical medicine studies the etiology, pathogenesis and pathological process of the disease based on the patient's clinical manifestations, and then determines the diagnosis, and through prevention and treatment, it can minimize the disease, relieve the patient's pain, restore the patient's health, and protect the labor force. Devices that come into direct contact with patients during clinical medical treatment need to be disinfected in a timely manner to avoid bacterial infection and isolate the spread of germs.

[0003] Small metal instruments are frequently used in clinical practice, so they need to be collected, cleaned and disinfected to ensure a continuous supply of small metal instruments. Existing instruments need to be manually sorted and packaged after disinfection, which can easily cause secondary contamination. The instruments may cause infection to the patient's affected area when in use; when not in use, the instruments also need to be taken out and placed in a special storage cabinet for storage, which increases the number of instrument disinfection steps and labor costs. To this end, a clinical medical instrument cleaning and disinfection device is provided to automatically clean and classify used instruments, so as to shorten the time for sending, disinfecting, waiting and distributing instruments in the existing centralized cleaning process, simplify the instrument disinfection process without affecting the disinfection quality. Summary of the invention

[0004] The purpose of the present invention is to provide a cleaning and disinfecting device for clinical medical instruments to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A clinical medical device cleaning and disinfection device, comprising:

[0007] The main bin and the sorting bin connected to it on its side, the main bin is provided with a high-temperature disinfection bin and a drying bin, the main bin is provided with a bin door rotatably connected to it, and a drying motor is installed on the main bin, the lower end of the drying motor is provided with a drying air duct, and the lower end of the drying air duct is arranged inside the main bin; moving wheels are installed at the four corners of the lower end of the main bin, and the side of the main bin is provided with a protective cover rotatably connected to it; it also includes: a collection frame and a driving motor;

[0008] The collection frame is placed in the high-temperature disinfection bin, the collection frame is a hollow structure, a battery is installed on the upper end of the collection frame, and a charging port is provided near the battery, and a matching charging terminal is installed near the charging port in the main bin, a first drive motor is installed at both ends of one side of the collection frame, a transmission belt is connected at the output end of the first drive motor, and a transmission rod connected to the transmission belt is provided at the lower end of the transmission belt, and a bottom plate is connected to the transmission rod;

[0009] The driving motor is installed on the side wall of the main bin, and a first driving rod is connected to the output end thereof, a second driving rod is rotatably connected to the first driving rod, and the lower end of the second driving rod is rotatably connected to the collection frame, and limiting sliding rods fixed to the inner wall of the high-temperature disinfection bin are arranged on both sides of the driving motor, and a limiting slip ring slidably connected to the limiting sliding rod is installed on the collection frame;

[0010] A pair of monitoring probes and a sorting robot arm are arranged in the sorting bin, a monitoring processing end is arranged on the monitoring probe, the monitoring processing end and the sorting robot arm are electrically connected to a control panel, and the control panel is arranged on the upper surface of the main bin;

[0011] A second driving motor is installed on the inner wall of the drying bin, and a driving gear is connected to the output end of the second driving motor. A drying frame is arranged on the side of the driving gear. The drying frame is nested and slidably connected to the inner wall of the drying bin, and a rack meshing with the driving gear is arranged on the drying frame. A placement bin is distributed on the lower side of the drying bin.

[0012] Preferably, a trumpet-shaped structure is provided at the lower end of the drying air duct.

[0013] Preferably, a heating water tank is arranged at the bottom end of the high-temperature disinfection tank, a water inlet and a water outlet are respectively arranged at the upper and lower ends of the heating water tank, and the side of the heating water tank is welded and fixed to the limiting sliding rod.

[0014] Preferably, the bottom plate is rotatably connected to the collection frame via a transmission rod, and the collection frame is nested and engaged with the high-temperature disinfection chamber.

[0015] Preferably, a rotating shaft is provided at one end of the first driving rod, and the first driving rod and the second driving rod are rotationally connected via the rotating shaft.

[0016] Preferably, the driving gear is meshingly connected with the rack, and the rack is integrally designed with the drying frame.

[0017] Preferably, a connecting frame is installed on one side of the placement bin, a lead screw nut is arranged in the connecting frame, a driving lead screw is connected in the lead screw nut, and a third driving motor is installed at one end of the driving lead screw.

[0018] Preferably, a drawer is provided in the storage bin, and a handle is installed on the drawer, and a limiting guide ring is connected to the lower end of the storage bin.

[0019] Preferably, a limiting guide rod is arranged inside the limiting guide ring to form a nested sliding connection structure therewith, and both ends of the limiting guide rod are respectively fixed to the inner wall of the drying bin.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention opens the door on the main bin, directly places the instruments that need to be disinfected after use in the collection frame, and drives the first driving rod to rotate around the second driving rod through the operation of the driving motor, drives the collection frame to operate, and cooperates with the limiting sliding rods on both sides of the collection frame to conduct the collection frame downward until the collection frame is collected into the heating water bin, and continuously boils the instruments with high-temperature boiling water for disinfection, which is direct, fast and efficient;

[0022] 2. The present invention moves the collection frame upward by rotating the first driving rod around the second driving rod. At this time, the first driving motor is operated to drive the bottom plate on the transmission belt to rotate around the transmission rod to open the bottom end of the collection frame. Before this, the second driving motor is operated to drive the driving gear to drive the rack to place the drying frame on the lower side of the collection frame. When the bottom end of the collection frame is opened, the instruments can be concentrated in the drying frame to facilitate subsequent drying and sorting work, thereby realizing rapid disinfection and transportation drying;

[0023] 3. The present invention is provided with a monitoring processing end and a sorting mechanical arm which are electrically connected to the control panel, so that the monitoring processing end can monitor the situation in the sorting bin, and cooperate with the sorting mechanical arm to clamp out the corresponding instruments for individual storage, which makes it easier and more efficient to take them out;

[0024] 4. The present invention forms a screw operating structure by the cooperation between the screw nut installed on the side connecting frame of the placement bin and the driving screw, which drives the placement bin to move in the direction of the driving screw, so as to cooperate with the sorting robot arm to carry out sorting work, realize automatic sorting, and facilitate users to directly pick up and carry out subsequent clinical medical work. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention from the first viewing angle.

[0026] Figure 2 It is a schematic diagram of the overall structure of the present invention from a second viewing angle.

[0027] Figure 3 It is a schematic diagram of the overall cross-sectional structure of the present invention.

[0028] Figure 4 It is a schematic diagram of the collection frame and high-temperature disinfection chamber structure of the present invention.

[0029] Figure 5 It is a schematic diagram of the collection frame structure of the present invention.

[0030] Figure 6 It is a schematic diagram of the drying frame structure of the present invention.

[0031] Figure 7 It is a schematic diagram of the installation structure of the placement bin of the present invention.

[0032] In the figure: 1. Main compartment; 101. Compartment door; 102. Control panel; 103. Drying motor; 104. Drying air duct;

[0033] 2. Sorting bin; 201. Monitoring and processing end; 202. Monitoring probe; 203. Sorting robot arm;

[0034] 3. High temperature disinfection chamber; 301. Heating water chamber; 302. Water inlet; 303. Water outlet; 304. Limiting slide bar;

[0035] 4. Collection frame; 401. Limiting slip ring; 402. Battery; 4021. Charging port; 403. First driving motor; 404. Transmission belt; 405. Transmission rod; 406. Bottom plate;

[0036] 5. driving motor; 501. first driving rod; 502. second driving rod; 6. moving wheel;

[0037] 7. Drying chamber; 701. Second driving motor; 702. Driving gear; 703. Drying frame; 704. Rack; 705. Storage chamber; 7051. Drawer; 7052. Pull handle; 7053. Limiting guide ring; 706. Connecting frame; 707. Screw nut; 708. Driving screw; 709. Third driving motor; 710. Limiting guide rod; 8. Protective cover. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0039] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] See also Figure 1-7 , an embodiment provided by the present invention:

[0043] A cleaning and disinfecting device for clinical medical instruments comprises: a main bin 1 and a sorting bin 2 connected to the main bin on its side, a collecting frame 4 and a driving motor 5.

[0044] Among them, a high-temperature disinfection chamber 3 and a drying chamber 7 are arranged in the main chamber 1, a chamber door 101 rotatably connected thereto is arranged on the main chamber 1, and a drying motor 103 is installed on the main chamber 1, a drying air duct 104 is installed at the lower end of the drying motor 103, and the lower end of the drying air duct 104 is arranged inside the main chamber 1, and a trumpet-shaped structure is arranged at the lower end of the drying air duct 104, which can increase the diffusion area of ​​the wind flow, ensure that the equipment placed in the drying frame 703 can be fully air-dried, and can improve the drying efficiency; moving wheels 6 are installed at the four corners of the lower end of the main chamber 1, which is convenient for moving the equipment and adjusting the position according to the use environment. A protective cover 8 rotatably connected thereto is arranged on the side of the main chamber 1, which can maintain the sealing of the pickup port when no items are picked up to avoid cross contamination.

[0045] In this embodiment, if Figure 2-5As shown, the collecting frame 4 is placed in the high-temperature disinfection chamber 3, and a heating water tank 301 is arranged at the bottom of the high-temperature disinfection chamber 3. A water inlet 302 and a water outlet 303 are respectively arranged at the upper and lower ends of the heating water tank 301. The water is replaced once to avoid incomplete disinfection caused by water pollution, thereby improving the quality of disinfection and cleaning. The collecting frame 4 is a hollow structure, which is convenient for boiling water to disinfect and sterilize the equipment; a battery 402 is installed at the upper end of the collecting frame 4, and a charging port 4021 is arranged at the collecting frame 4 close to the battery 402, and a matching charging port 4201 is installed at the main chamber 1 close to the charging port 4201. Electric end, both ends of one side of the collection frame 4 are installed with a first driving motor 403, the output end of the first driving motor 403 is connected with a transmission belt 404, and the lower end of the transmission belt 404 is provided with a transmission rod 405 connected thereto, the transmission rod 405 is connected with a bottom plate 406, the bottom plate 406 is rotatably connected with the collection frame 4 through the transmission rod 405, the collection frame 4 is nested and engaged with the high-temperature disinfection chamber 3, the first driving motor 403 drives the bottom plate 406 on the transmission belt 404 to rotate around the transmission rod 405, and opens the bottom end of the collection frame 4 to facilitate the transfer of the instrument;

[0046] Among them, the driving motor 5 is installed on the side wall of the main warehouse 1, and a first driving rod 501 is connected at its output end. The first driving rod 501 is rotatably connected to the second driving rod 502. One end of the first driving rod 501 is provided with a rotating shaft, and the first driving rod 501 and the second driving rod 502 are rotatably connected through the rotating shaft; the lower end of the second driving rod 502 is rotatably connected to the collecting frame 4, and both sides of the driving motor 5 are provided with limiting slide rods 304 fixed to the inner wall of the high-temperature disinfection warehouse 3, and the limiting slide rods 304 are welded to the side wall of the heating water warehouse 301. A limiting slip ring 401 slidably connected to the limiting slide rod 304 is installed on the collecting frame 4. When the collecting frame 4 moves up and down, the limiting slip ring 401 arranged thereon cooperates with the limiting slide rod 304 to limit it, thereby ensuring a unified running trajectory of the collecting frame 4 and improving the stability of the collecting frame 4 when moving.

[0047] In this embodiment, if Figure 1 , Figure 3 As shown, a pair of monitoring probes 202 and a sorting robot arm 203 are arranged in the sorting bin 2, a monitoring processing terminal 201 is arranged on the monitoring probe 202, the monitoring processing terminal 201 and the sorting robot arm 203 are electrically connected to the control panel 102, and the control panel 102 is arranged on the upper surface of the main bin 1; the monitoring processing terminal 201 monitors the situation in the sorting bin 2, and cooperates with the sorting robot arm 203 to clamp out the corresponding instruments for individual storage, which makes it easier and more efficient to take them out.

[0048] In one embodiment, if Figure 6As shown, a second driving motor 701 is installed on the inner wall of the drying bin 7, and a driving gear 702 is connected to the output end of the second driving motor 701. A drying frame 703 is arranged on the side of the driving gear 702. The drying frame 703 is nested and slidably connected to the inner wall of the drying bin 7. A rack 704 meshing with the driving gear 702 is arranged on the drying frame 703. The driving gear 702 drives the rack 704 meshing with it to place the drying frame 703 on the lower side of the collecting frame 4. When the bottom end of the collecting frame 4 is opened, the instruments can be gathered into the drying frame 703 to facilitate subsequent drying and sorting work.

[0049] In one of the embodiments, a placing bin 705 is distributed on the lower side of the drying bin 7, a connecting frame 706 is installed on one side of the placing bin 705, a screw nut 707 is arranged in the connecting frame 706, a driving screw 708 is connected in the screw nut 707, a third driving motor 709 is installed at one end of the driving screw 708, and the screw nut 707 installed on the side connecting frame 706 of the placing bin 705 cooperates with the driving screw 708 to form a screw operating structure. At the same time, the inner wall of the drying bin 7 and the drying frame 703 are nested and slidably moved to limit the movement of the drying frame 703. The screw operating structure formed by the cooperation between the screw nut 707 and the driving screw 708 drives the placing bin 705 to move in the direction of the driving screw 708, so as to cooperate with the sorting robot 203 to perform sorting work and realize automatic sorting.

[0050] In one embodiment, if Figure 7 As shown, a drawer 7051 is provided in the placement bin 705, and a pull handle 7052 is installed on the drawer 7051, so as to facilitate the drawing of the drawer 7051 by means of the pull handle 7052. The lower end of the placement bin 705 is connected to a limiting guide ring 7053, and a limiting guide rod 710 is provided in the limiting guide ring 7053 to form a nested sliding connection structure therewith. The limiting guide ring 7053 can guide and limit the screw nut 707 and the driving screw 708 to form a screw operation structure, and the two ends of the limiting guide rod 710 are respectively fixed on the inner wall of the drying bin 7, and the limiting guide rod 710 passes through the limiting guide ring 7053 to realize flexible movement.

[0051] The working principle of the present invention is as follows: first, the user opens the door 101 rotatably connected to the main compartment 1, operates the control panel 102 to start the drive motor 5, and the first drive rod 501 starts to rotate so that the collection frame 4 rotatably connected to the second drive rod 502 is upward, and the medical device to be processed is placed in the collection frame 4, and the door 101 is closed to start cleaning and disinfection;

[0052] During cleaning and disinfection, the operation control panel 102 turns on the driving motor 5, the first driving rod 501 rotates to make the collecting frame 4 connected to the rotation axis of the second driving rod 502 downward, and the collecting frame 4 enters the heating water tank 301. At this time, the matching valve on the water inlet 302 is opened to inject water into the heating water tank 301, and the matching valve of the water outlet 303 is opened to perform preliminary cleaning on the instrument. After the cleaning is completed, the matching valve of the water outlet 303 is closed to store the water in the heating water tank 301. The heating water tank 301 heats and boils the water regularly to disinfect the instruments placed therein. After the disinfection is completed, the driving motor 5 is turned on to make the first driving rod 501 start to rotate and drive the collecting frame 4 connected to the rotation axis of the second driving rod 502 upward, and the charging port 4021 on the collecting frame 4 is connected to the charging end of the main tank 1. When the collecting frame 4 is not working, it stores electricity for the battery 402. The collecting frame 4 is drained regularly, and then the instrument is dried.

[0053] When drying, the equipment needs to be transferred from the collection frame 4 to the drying frame 703. The operation of the second driving motor 701 causes the driving gear 702 to engage the rack 704 on the side of the drying frame 703, driving the drying frame 703 to enter the lower end of the collection frame 4. At this time, the operation of the first driving motor 403 drives the transmission rod 405 at the lower end of the transmission belt 404 to rotate, and the transmission rod 405 drives the bottom plate 406 to open the collection frame 4. At this time, the equipment moves from the collection frame 4 to the drying frame 703, and the drying frame 703 is reset to carry out subsequent drying work. Before the drying work, the equipment will run the third driving motor 709 to drive the screw nut 707 in the connecting frame 706 to move away from the lower end of the drying frame 703. When drying, the drying motor 103 is turned on to guide the airflow to the drying frame 703 to dry the equipment on it, and then the sorting work can be carried out;

[0054] During sorting, the monitoring processing end 201 processes the monitoring image of the monitoring probe 202, transmits it to the control end in the control panel 102, and starts the sorting robot 203 for intelligent sorting. During sorting, the instruments are first placed one by one on the topmost placement bin 705, and then the corresponding third drive motor 709 is turned on to reset the three-layer placement bin 705 where the instruments are placed one by one. When taking it out, the protective cover 8 is opened and the handle 7052 is held to drive the drawer 7051 to be pulled out. The items can be taken out with gloves on and used.

[0055] The above is only an embodiment of the present invention, and the common sense such as the known specific structure and characteristics in the scheme is not described in detail here. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the attached claims rather than the above description, so it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. A cleaning and disinfection device for clinical medical equipment, characterized in that: It includes: A main bin (1) and a sorting bin (2) connected to the main bin (1) on its side, wherein a high-temperature disinfection bin (3) and a drying bin (7) are arranged in the main bin (1), a bin door (101) rotatably connected to the main bin (1) is arranged on the main bin (1), and a drying motor (103) is installed on the main bin (1), a drying air duct (104) is installed at the lower end of the drying motor (103), and the lower end of the drying air duct (104) is arranged inside the main bin (1); moving wheels (6) are installed at the four corners of the lower end of the main bin (1), and a protective cover (8) rotatably connected to the main bin (1) is arranged on the side of the main bin (1); and further comprising: a collecting frame (4) and a driving motor (5); The collection frame (4) is placed in the high-temperature disinfection chamber (3); the collection frame (4) is a hollow structure; a storage battery (402) is installed at the upper end of the collection frame (4); a charging port (4021) is provided on the collection frame (4) close to the storage battery (402); and a matching charging terminal is installed on the main chamber (1) close to the charging port (4021); a first driving motor (403) is installed at both ends of one side of the collection frame (4); a transmission belt (404) is connected to the output end of the first driving motor (403); and a transmission rod (405) connected to the transmission belt (404) is provided at the lower end of the transmission belt (404); and a bottom plate (406) is connected to the transmission rod (405); The driving motor (5) is mounted on the side wall of the main bin (1), and a first driving rod (501) is connected to the output end of the driving motor (5), a second driving rod (502) is rotatably connected to the first driving rod (501), and the lower end of the second driving rod (502) is rotatably connected to the collection frame (4), and limiting sliding rods (304) fixed to the inner wall of the high-temperature disinfection bin (3) are arranged on both sides of the driving motor (5), and a limiting sliding ring (401) slidably connected to the limiting sliding rod (304) is installed on the collection frame (4); A pair of monitoring probes (202) and a sorting mechanical arm (203) are arranged in the sorting bin (2); a monitoring processing end (201) is arranged on the monitoring probe (202); the monitoring processing end (201) and the sorting mechanical arm (203) are electrically connected to a control panel (102); and the control panel (102) is arranged on the upper surface of the main bin (1); A second driving motor (701) is installed on the inner wall of the drying bin (7); a driving gear (702) is connected to the output end of the second driving motor (701); a drying frame (703) is arranged on the side of the driving gear (702); the drying frame (703) and the inner wall of the drying bin (7) are nested and slidably connected; a rack (704) meshingly connected to the driving gear (702) is arranged on the drying frame (703); and a placement bin (705) is distributed on the lower side of the drying bin (7).

2. A clinical medical equipment cleaning and disinfection device according to claim 1, characterized in that: A trumpet-shaped structure is provided at the lower end of the drying air duct (104).

3. A clinical medical equipment cleaning and disinfection device according to claim 1, characterized in that: A heating water tank (301) is arranged at the bottom of the high-temperature disinfection tank (3), and a water inlet (302) and a water outlet (303) are arranged at the upper and lower ends of the heating water tank (301), respectively. The side of the heating water tank (301) is welded and fixed to a limiting sliding rod (304).

4. A clinical medical equipment cleaning and disinfection device according to claim 1, characterized in that: The bottom plate (406) is rotatably connected to the collection frame (4) via a transmission rod (405), and the collection frame (4) is nested and engaged with the high-temperature disinfection chamber (3).

5. A clinical medical equipment cleaning and disinfection device according to claim 1, characterized in that: A rotating shaft is provided at one end of the first driving rod (501), and the first driving rod (501) and the second driving rod (502) are rotatably connected via the rotating shaft.

6. A clinical medical equipment cleaning and disinfection device according to claim 1, characterized in that: The driving gear (702) and the rack (704) are meshingly connected, and the rack (704) and the drying frame (703) are designed as an integral whole.

7. A clinical medical equipment cleaning and disinfection device according to claim 1, characterized in that: A connecting frame (706) is installed on one side of the placement bin (705), a screw nut (707) is arranged inside the connecting frame (706), a driving screw (708) is connected inside the screw nut (707), and a third driving motor (709) is installed at one end of the driving screw (708).

8. A clinical medical device cleaning and disinfection device according to claim 8, characterized in that: A drawer (7051) is arranged in the placement bin (705), and a handle (7052) is installed on the drawer (7051), and a limit guide ring (7053) is connected to the lower end of the placement bin (705).

9. A clinical medical device cleaning and disinfection device according to claim 9, characterized in that: A limiting guide rod (710) is arranged inside the limiting guide ring (7053) to form a nested sliding connection structure therewith, and both ends of the limiting guide rod (710) are respectively fixed to the inner wall of the drying bin (7).

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