Portable tool box for medical instrument maintenance

By designing a portable medical device maintenance toolbox, combined with the operating table, storage, disinfection and recycling components, the problem of inconvenience in forming an operating platform and disinfection means is solved, convenient operation and safe disinfection are achieved, and maintenance is improved Efficiency and safety.

CN222325879UInactive Publication Date: 2025-01-10INNOVATIVE MEDICAL TECHNOLOGY SERVICES (TIANJIN) CO LTD
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Patent Information

Application Number
CN202421063091.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-15
Publication Date
2025-01-10
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In medical device maintenance, the tool box is not easy to deform and is formed into an operating platform, and the disinfection methods are not convenient enough, which affects the maintenance efficiency and safety.

Method used

A toolbox including carrier components, operation table components, storage components, disinfection components and recycling components is designed. A convenient operating platform is provided by setting the operation table components at the left end of the carrier component, and the storage components and disinfection components are set internally to realize the classification of tools. Storage and UV disinfection, and conveniently dispose of waste through recycling components.

Benefits of technology

It provides a platform for easy operation, ensuring the cleanliness and convenient disinfection of the toolbox, avoiding squatting and secondary pollution, and improving maintenance efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of tool kit industry, in particular to a portable tool kit for maintaining medical instruments. The technical problems that when the tool box for medical instrument maintenance is used for work, the tool box is not prone to deformation to be built into an operation platform, and disinfection means are not convenient enough are solved. According to the technical scheme, the portable tool box for medical instrument maintenance comprises a bearing assembly, an operation table assembly, a storage assembly, a disinfection assembly and a recovery assembly. The operating platform assembly is arranged at the left end of the bearing assembly, a platform convenient to operate is provided for maintenance personnel, and the problem that a tool box is not prone to deformation to form the operating platform is solved; articles and tools needing to be disinfected can be placed in the box together for ultraviolet disinfection and then used or stored, and the problem that disinfection means are not convenient enough is solved.
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Description

Technical Field

[0001] The utility model belongs to the field of tool box industry, and specifically relates to a portable tool box for repairing medical equipment. Background Art

[0002] In the toolbox industry, a specially designed toolbox is usually required for medical device maintenance to ensure the neatness, organization and safety of the tools. In the prior art, when using a toolbox for medical device maintenance, maintenance personnel often perform on-site maintenance operations. The toolbox is not easy to deform and form an operating platform for maintenance operations or to place more items. At the same time, due to the particularity of medical devices, maintenance tools often have certain disinfection requirements. Alcohol spraying is conventionally used for disinfection. However, when there are many tools to be disinfected, the disinfection method is not convenient enough. Utility Model Content

[0003] In order to overcome the problem that when a tool box for repairing medical equipment is used for work, the tool box is not easy to deform and form an operating platform for repairing operations or placing more items and the disinfection means are not convenient enough.

[0004] The technical solution of the utility model is: a portable tool box for repairing medical equipment, comprising a carrying component, an operating table component, a storage component, a disinfection component and a recycling component; an operating table component for convenient operation is arranged at the left end of the carrying component; a storage component for storage is arranged inside the carrying component; a disinfection component for disinfection is arranged inside the carrying component; and a recycling component for recycling is arranged inside the carrying component.

[0005] Preferably, an operating table assembly arranged at the left end of the carrying assembly provides a platform for maintenance personnel to operate conveniently, avoiding the embarrassing situation of squatting on the ground to work, and solving the problem that the toolbox is not easy to deform and form an operating platform for maintenance operations or to place more items during maintenance work. The storage assembly arranged inside the carrying assembly provides independent storage space for complex maintenance tools, which is convenient for classified storage. The disinfection assembly arranged inside the carrying assembly allows the items and tools to be disinfected to be placed together therein, and the disinfection assembly can be started for ultraviolet disinfection before use or storage, solving the problem of inconvenient disinfection means. The recycling assembly arranged inside the carrying assembly allows garbage and waste generated by maintenance work to be conveniently recycled to avoid secondary pollution.

[0006] Preferably, the carrying assembly includes a carrying box, a pull rod, a file box, a first cover plate, a bottom wheel, a first screw groove, a partition plate and a first threaded column; the pull rod is fixedly connected to the groove opened at the upper end of the carrying box; the file box is fixedly connected to the right end of the carrying box; the first cover plate is hingedly connected to the front end of the carrying box; the bottom wheel is fixedly connected to the lower end of the carrying box; a first screw groove is opened at the front end of the first cover plate; the cross-section of the first screw groove is circular; a partition plate is fixedly connected to the inner wall of the carrying box; the cross-section of the partition plate is T-shaped; a second screw groove is opened through the upper end of the carrying box; the first threaded column is threadedly installed in the second screw groove; the first threaded column is matched with the first screw groove, and when the tool box is in a folded state, the bottom wheel and the pull rod can be set so that the tool box can be pushed like a suitcase, which is more convenient to carry and solves the problem that the tool box for repairing medical equipment is too large to be carried.

[0007] Preferably, the operating table assembly includes a support plate, a first handle, a warning light, a second threaded column, a base and a positioning block; the left end of the bearing box is hinged with a support plate; the upper end of the support plate is fixedly connected to the first handle and the warning light; the lower end of the support plate is fixedly connected to symmetrically distributed positioning blocks; the second threaded column is threadedly installed in the hole opened at the lower end of the positioning block; the base is threadedly installed on the outer wall of the other end of the second threaded column. When the support plate is unfolded, the second threaded column is threadedly installed on the lower end of the positioning block and the base is installed on the lower end of the second threaded column. The lower end of the second threaded column contacts the ground to form a simple operating platform, which solves the problem of having no place to operate during maintenance. The lower end of the second threaded column is made of rubber and has good anti-slip properties, ensuring the stability of the operating table assembly during maintenance operations. The warning light is set to flash during operation to warn people around who are working carefully.

[0008] Preferably, the storage assembly includes a first box body, a second box body, a third box body, a fourth box body, a track, a limit block and a slider; the track is fixedly connected to the inner wall of the lower end of the carrying box body; the limit block is fixedly connected to the upper end of the track; the slider is movably provided on the upper end of the track; the left and right ends of the slider are fitted with the inner wall of the track; the upper end of the slider is movably provided with the first box body; the lower end of the first box body is fitted with the upper end of the slider; the left end of the first box body is fitted with the partition; the right end of the first box body is fitted with the inner wall of the carrying box body. Through the setting of the track and the slider, the first box body can be smoothly pulled out or pushed in from the carrying box body, so as to facilitate the access to the items or tools stored in the first box body. The setting of the limit block ensures that the slider will not slip off the track.

[0009] Preferably, a second box body is movably provided on the upper end of the partition; the lower end of the second box body is fitted with the upper end of the partition; a third box body is movably provided on the upper end of the second box body; the lower end of the third box body is fitted with the upper end of the second box body; a fourth box body is movably provided on the upper end of the third box body; the lower end of the fourth box body is fitted with the upper end of the third box body; the upper end of the fourth box body is fitted with the inner wall of the carrying box body. By arranging the second box body, the third box body and the fourth box body, independent storage spaces are provided, which is conducive to the classified storage of items or tools.

[0010] Preferably, the disinfection component includes a disinfection cabinet, a grille plate, an ultraviolet lamp, a closed door, a second handle, a battery and a switch; the upper end of the partition is fixedly connected to the disinfection cabinet; the left and right inner walls of the disinfection cabinet are fixedly connected to the grille plates; the upper inner wall of the disinfection cabinet is fixedly connected to the ultraviolet lamp; the front end of the disinfection cabinet is hinged with a closed door; the front end of the closed door is fixedly connected to the second handle and the switch; the right end of the carrying box is fixedly connected to the battery. Through the provision of the disinfection component, in scenarios where sterile operation is required, the maintenance tools can be disinfected before performing maintenance operations, or after the work is completed, the items or tools that may come into contact with pathogens can be disinfected before storage to avoid secondary infection caused by the carried pathogens, thereby solving the problem of inconvenient disinfection methods.

[0011] Preferably, the recycling component includes a delivery slot, a first support block, a second cover plate, a magnet, a third handle, a second support block and a recycling bin; a delivery slot is provided at the upper end of the carrying box; the first support block is symmetrically fixed to the inner wall of the delivery slot; the cross-section of the first support block is rectangular; a magnet is fixed to the rear end of the carrying box; a second cover plate is movably provided at the rear end of the magnet; a third handle is fixed to the rear end of the second cover plate; a second support block is fixed to the left end of the partition; the cross-section of the second support block is rectangular; a recycling bin is movably provided at the upper end of the second support block; the lower end of the recycling bin is fitted with the upper end of the second support block, and by setting the delivery slot, garbage or waste materials can be quickly put into the recycling bin, and when the tool box is pushed to move, the third handle can be removed from the magnet and placed on the first support block to avoid splashing of garbage and waste materials in the recycling bin and causing secondary pollution.

[0012] Beneficial effects of the utility model:

[0013] 1. Through the setting of the operating table assembly, the left end of the bearing box is hinged with a support plate, the upper end of the support plate is fixedly connected with a first handle and a warning light, the lower end of the support plate is fixedly connected with symmetrically distributed positioning blocks, the inner thread of the hole opened at the lower end of the positioning block is threadedly installed with a second threaded column, and the outer wall of the other end of the second threaded column is threadedly installed with a base. When the support plate is unfolded, a simple operating platform is formed, avoiding the embarrassing situation of squatting on the ground to work, and solving the problem that the toolbox is not easy to deform and form an operating platform for maintenance operations or placing more items during maintenance work;

[0014] 2. Through the setting of the disinfection component, the upper end of the partition is fixedly connected to the disinfection cabinet, the left and right inner walls of the disinfection cabinet are fixedly connected to the grid plates, and the upper inner wall of the disinfection cabinet is fixedly connected to the ultraviolet lamp. In the scenario where aseptic operation is required, the maintenance tools can be disinfected before the maintenance operation, or the items or tools that may be in contact with germs can be disinfected before storage after the work is completed, so as to avoid secondary infection caused by the carried germs, and solve the problem of inconvenient disinfection means;

[0015] 3. By setting the delivery slot, garbage or waste materials can be quickly put into the recycling bin. When the tool box is pushed to move, the third handle can be removed from the magnet and placed on the first support block to prevent the garbage and waste materials in the recycling bin from splashing out and causing secondary pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a three-dimensional structural schematic diagram of a portable tool box for repairing medical equipment according to the utility model;

[0017] Figure 2 Shown is a three-dimensional structural schematic diagram of a carrying component of a portable tool box for repairing medical equipment according to the utility model;

[0018] Figure 3 The utility model shows a carrying component of a tool box for medical equipment maintenance that is easy to carry. Figure 2 A partial enlarged schematic diagram of the three-dimensional structure at center A;

[0019] Figure 4 Shown is a three-dimensional structural schematic diagram of an operating table assembly of a portable tool box for repairing medical equipment according to the utility model;

[0020] Figure 5 The utility model shows an operating table component of a portable tool box for repairing medical equipment. Figure 4 A partial enlarged schematic diagram of the three-dimensional structure at B in the middle;

[0021] Figure 6 Shown is a three-dimensional structural schematic diagram of a storage component of a portable tool box for repairing medical equipment according to the utility model;

[0022] Figure 7 The utility model is a portable storage component of a tool box for repairing medical equipment. Figure 6 A partial enlarged schematic diagram of the three-dimensional structure at C in the middle;

[0023] Figure 8Shown is a three-dimensional structural schematic diagram of a disinfection component of a portable tool box for repairing medical equipment according to the utility model;

[0024] Fig. 9 Shown is a three-dimensional structural schematic diagram of a recovery component of a portable tool box for repairing medical equipment according to the utility model.

[0025] The marks in the accompanying drawings are: 1-carrying assembly, 101-carrying box, 102-pull rod, 103-file box, 104-first cover plate, 105-bottom wheel, 106-first screw groove, 107-partition plate, 108-first threaded column, 109-second screw groove, 2-operating table assembly, 201-support plate, 202-first handle, 203-warning light, 204-second threaded column, 205-base, 206-positioning block, 3-storage assembly, 301-first box body, 302-second box body, 303-third box body, 304-fourth box body, 305-track, 306-limiting block, 307-slider, 4-disinfection component, 401-disinfection cabinet, 402-grid plate, 403-ultraviolet lamp, 404-sealed door, 405-second handle, 406-battery, 407-switch, 5-recycling component, 501-dispensing slot, 502-first support block, 503-second cover plate, 504-magnet, 505-third handle, 506-second support block, 507-recycling bucket. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0027] See also Figure 1 The utility model provides an embodiment: a portable tool box for repairing medical equipment, comprising a carrying component 1, an operating table component 2, a storage component 3, a disinfection component 4 and a recycling component 5; an operating table component 2 for convenient operation is arranged at the left end of the carrying component 1; a storage component 3 for storage is arranged inside the carrying component 1; a disinfection component 4 for disinfection is arranged inside the carrying component 1; a recycling component 5 for recycling is arranged inside the carrying component 1.

[0028] See also Figure 2 and Figure 3In this embodiment, the bearing assembly 1 includes a bearing box 101, a pull rod 102, a file box 103, a first cover plate 104, a bottom wheel 105, a first screw groove 106, a partition plate 107 and a first threaded column 108; the pull rod 102 is fixedly connected to the groove opened at the upper end of the bearing box 101; the file box 103 is fixedly connected to the right end of the bearing box 101; the first cover plate 104 is hingedly connected to the front end of the bearing box 101; the bearing box 1 01 is fixedly connected to a bottom wheel 105 at the lower end; a first screw groove 106 is provided at the front end of the first cover plate 104; the cross section of the first screw groove 106 is circular; a partition 107 is fixedly connected to the inner wall of the carrying box 101; the cross section of the partition 107 is T-shaped; a second screw groove 109 is provided through the upper end of the carrying box 101; a first threaded column 108 is installed in the inner thread of the second screw groove 109; the first threaded column 108 is adapted to the first screw groove 106.

[0029] See also Figure 4 and Figure 5 In this embodiment, the operating table assembly 2 includes a support plate 201, a first handle 202, a warning light 203, a second threaded column 204, a base 205 and a positioning block 206; the left end of the carrying box 101 is hinged with the support plate 201; the upper end of the support plate 201 is fixedly connected to the first handle 202 and the warning light 203; the lower end of the support plate 201 is fixedly connected to the symmetrically distributed positioning blocks 206; the second threaded column 204 is threadedly installed in the hole opened at the lower end of the positioning block 206; the base 205 is threadedly installed on the outer wall of the other end of the second threaded column 204.

[0030] See also Figure 6 and Figure 7 In this embodiment, the storage assembly 3 includes a first box body 301, a second box body 302, a third box body 303, a fourth box body 304, a track 305, a limit block 306 and a slider 307; the track 305 is fixedly connected to the inner wall of the lower end of the carrying box body 101; the limit block 306 is fixedly connected to the upper end of the track 305; the slider 307 is movably provided on the upper end of the track 305; the left and right ends of the slider 307 are in contact with the inner wall of the track 305; the upper end of the slider 307 is movably provided with the first box body 301; the lower end of the first box body 301 is in contact with the upper end of the slider 307; the left end of the first box body 301 The right end of the first box body 301 is fitted with the inner wall of the carrying box body 101; the second box body 302 is movably provided on the upper end of the partition 107; the lower end of the second box body 302 is fitted with the upper end of the partition 107; the third box body 303 is movably provided on the upper end of the second box body 302; the lower end of the third box body 303 is fitted with the upper end of the second box body 302; the fourth box body 304 is movably provided on the upper end of the third box body 303; the lower end of the fourth box body 304 is fitted with the upper end of the third box body 303; the upper end of the fourth box body 304 is fitted with the inner wall of the carrying box body 101.

[0031] See also Figure 4 and Figure 8 In this embodiment, the disinfection assembly 4 includes a disinfection cabinet 401, a grille plate 402, an ultraviolet lamp 403, a sealed door 404, a second handle 405, a battery 406 and a switch 407; the upper end of the partition 107 is fixedly connected to the disinfection cabinet 401; the grille plates 402 are fixedly connected to the inner walls of the left and right ends of the disinfection cabinet 401; the ultraviolet lamp 403 is fixedly connected to the upper inner wall of the disinfection cabinet 401; the front end of the disinfection cabinet 401 is hinged with the sealed door 404; the front end of the sealed door 404 is fixedly connected to the second handle 405 and the switch 407; the right end of the carrying box 101 is fixedly connected to the battery 406.

[0032] See also Figure 8 and Fig. 9 In this embodiment, the recycling component 5 includes a delivery slot 501, a first support block 502, a second cover plate 503, a magnet 504, a third handle 505, a second support block 506 and a recycling bucket 507; a delivery slot 501 is provided at the upper end of the carrying box 101; the first support block 502 is symmetrically fixed to the inner wall of the delivery slot 501; the cross-section of the first support block 502 is rectangular; the rear end of the carrying box 101 is fixed with a magnet 504; the rear end of the magnet 504 is movably provided with a second cover plate 503; the rear end of the second cover plate 503 is fixed with a third handle 505; the left end of the partition 107 is fixed with a second support block 506; the cross-section of the second support block 506 is rectangular; the upper end of the second support block 506 is movably provided with a recycling bucket 507; the lower end of the recycling bucket 507 is in contact with the upper end of the second support block 506.

[0033] When working, the bearing assembly 1 is pushed to the side of the equipment to be repaired through the pull rod 102 and the bottom wheel 105, the first threaded column 108 is screwed off, the first cover plate 104 is laid down, and the second threaded column 204 and the base 205 are taken out from the cavity below the partition 107, and then the support plate 201 is pulled up through the first handle 202, and the second threaded column 204 is threadedly installed on the lower end of the positioning block 206, and the other end of the second threaded column 204 is threadedly installed on the upper end of the base 205. The lower end of the base 205 is close to the ground to ensure stability, forming a simple operating platform, and the warning light 203 is turned on to warn the surroundings, which solves the problem that the toolbox is not easy to deform and form an operating platform for maintenance operations or to place more items;

[0034] When aseptic operation is required, the protective clothing and mask are taken out from the storage component 3 and put on neatly, and then the maintenance tools are taken out from the storage component 3 and placed in the disinfection cabinet 401, and then the airtight door 404 is closed and the switch 407 is started to sterilize the tools inside with ultraviolet light for subsequent aseptic operation, which solves the problem of inconvenient disinfection means;

[0035] When the maintenance is completed, the garbage and waste generated by the maintenance work on the support plate 201 can be thrown into the recycling bin 507 from the delivery slot 501, and then the second cover plate 503 can be removed from the magnet 504 and placed on the first support block 502 to avoid splashing of garbage and waste in the recycling bin 507 during the movement and causing secondary pollution, so as to facilitate unified recycling and treatment.

[0036] Through the above steps, the operating table component 2 set at the left end of the supporting component 1 provides a convenient operating platform for maintenance personnel, avoiding the embarrassing situation of squatting on the ground to work, and solving the problem that the toolbox is not easy to deform and form an operating platform for maintenance operations or to place more items. The storage component 3 set inside the supporting component 1 provides independent storage space for complex maintenance tools, which is convenient for classified storage. The disinfection component 4 set inside the supporting component 1 can put the items and tools that need to be disinfected into it, and start the disinfection component 4 for ultraviolet disinfection before use or storage, which solves the problem of inconvenient disinfection. The recycling component 5 set inside the supporting component 1 can conveniently recycle garbage and waste generated by maintenance work to avoid secondary pollution.

[0037] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A portable tool box for repairing medical equipment, comprising a carrying assembly (1); characterized in that: The invention also comprises an operating table component (2), a storage component (3), a disinfection component (4) and a recovery component (5); the left end of the bearing component (1) is provided with an operating table component (2) for easy operation; the interior of the bearing component (1) is provided with a storage component (3) for storage; the interior of the bearing component (1) is provided with a disinfection component (4) for disinfection; and the interior of the bearing component (1) is provided with a recovery component (5) for recovery.

2. A portable tool box for repairing medical equipment according to claim 1, characterized in that: The bearing assembly (1) comprises a bearing box (101), a pull rod (102), a document box (103), a first cover plate (104), a bottom wheel (105), a first screw groove (106), a partition plate (107) and a first threaded column (108); the pull rod (102) is fixedly connected in a groove provided at the upper end of the bearing box (101); the document box (103) is fixedly connected at the right end of the bearing box (101); the first cover plate (104) is hingedly connected at the front end of the bearing box (101); the bottom wheel (105) is fixedly connected at the lower end of the bearing box (101); the first screw groove (106) is provided at the front end of the first cover plate (104); the cross section of the first screw groove (106) is circular; A partition (107) is fixedly connected to the inner wall of the bearing box (101); the cross section of the partition (107) is T-shaped; a second screw groove (109) is penetrated through the upper end of the bearing box (101); a first threaded column (108) is installed in the second screw groove (109) through a thread; the first threaded column (108) is matched with the first screw groove (106).

3. A portable tool box for repairing medical equipment according to claim 2, characterized in that: The operating table assembly (2) comprises a support plate (201), a first handle (202), a warning light (203), a second threaded column (204), a base (205) and a positioning block (206); the left end of the bearing box (101) is hinged with the support plate (201); the upper end of the support plate (201) is fixedly connected with the first handle (202) and the warning light (203); the lower end of the support plate (201) is fixedly connected with symmetrically distributed positioning blocks (206); the second threaded column (204) is threadedly installed in a hole provided at the lower end of the positioning block (206); and the base (205) is threadedly installed on the outer wall of the other end of the second threaded column (204).

4. A portable tool box for repairing medical equipment according to claim 2, characterized in that: The storage assembly (3) comprises a first box body (301), a second box body (302), a third box body (303), a fourth box body (304), a track (305), a limit block (306) and a slider (307); the track (305) is fixedly connected to the inner wall of the lower end of the carrying box body (101); the limit block (306) is fixedly connected to the upper end of the track (305); the slider (307) is movably provided at the upper end of the track (305); the left and right ends of the slider (307) are in contact with the inner wall of the track (305); the first box body (301) is movably provided at the upper end of the slider (307); the lower end of the first box body (301) is in contact with the upper end of the slider (307); the left end of the first box body (301) is in contact with the partition (107); and the right end of the first box body (301) is in contact with the inner wall of the carrying box body (101).

5. A portable tool box for repairing medical equipment according to claim 4, characterized in that: A second box body (302) is movably arranged on the upper end of the partition (107); the lower end of the second box body (302) is in contact with the upper end of the partition (107); a third box body (303) is movably arranged on the upper end of the second box body (302); the lower end of the third box body (303) is in contact with the upper end of the second box body (302); a fourth box body (304) is movably arranged on the upper end of the third box body (303); the lower end of the fourth box body (304) is in contact with the upper end of the third box body (303); and the upper end of the fourth box body (304) is in contact with the inner wall of the carrying box (101).

6. A portable tool box for repairing medical equipment according to claim 2, characterized in that: The disinfection assembly (4) comprises a disinfection cabinet (401), a grille plate (402), an ultraviolet lamp (403), a sealed door (404), a second handle (405), a storage battery (406) and a switch (407); the upper end of the partition (107) is fixedly connected to the disinfection cabinet (401); the grille plates (402) are fixedly connected to the inner walls at the left and right ends of the disinfection cabinet (401); the ultraviolet lamp (403) is fixedly connected to the inner wall at the upper end of the disinfection cabinet (401); the front end of the disinfection cabinet (401) is hingedly connected to the sealed door (404); the front end of the sealed door (404) is fixedly connected to the second handle (405) and the switch (407); and the right end of the carrying box (101) is fixedly connected to the storage battery (406).

7. A portable tool box for repairing medical equipment according to claim 2, characterized in that: The recycling assembly (5) comprises a delivery slot (501), a first support block (502), a second cover plate (503), a magnet (504), a third handle (505), a second support block (506) and a recycling bucket (507); the delivery slot (501) is provided at the upper end of the carrying box (101); the first support block (502) is symmetrically fixed to the inner wall of the delivery slot (501); the cross section of the first support block (502) is rectangular; the rear end of the carrying box (101) is A magnet (504) is fixedly connected; a second cover plate (503) is movably provided at the rear end of the magnet (504); a third handle (505) is fixedly connected to the rear end of the second cover plate (503); a second support block (506) is fixedly connected to the left end of the partition (107); the cross section of the second support block (506) is rectangular; a recovery bin (507) is movably provided at the upper end of the second support block (506); the lower end of the recovery bin (507) is in contact with the upper end of the second support block (506).