CN213833075U

CN213833075U - Portable medical waste classification device

Info

Publication number: CN213833075U
Application number: CN202021997594.5U
Authority: CN
Inventors: 胡芳; 王峥; 戴向晨; 郭风琴; 吕路
Original assignee: Tianjin Medical University General Hospital
Current assignee: Tianjin Medical University General Hospital
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2021-07-30
Anticipated expiration: 2030-09-14

Abstract

The utility model relates to a portable medical waste sorter, including the stereoplasm case body, the upper end cover of stereoplasm case body has collapsible open's case lid, even there is the baldric at the top left and right sides of stereoplasm case body, separate into at least three subregion, each in the stereoplasm case body respectively in the subregion detachable install injure waste garbage bin or infectious waste garbage bin or general medical waste garbage bin, the upper end of injure waste garbage bin is equipped with throws the mouth, is used for sealing up the disposable lid of closing up the throw mouth, infectious waste garbage bin, the upper end of general medical waste garbage bin are equipped with flip respectively, but correspond on the case lid and be equipped with the interference and fill in the intraoral plug of throw, the frame type draw-in groove of flip joint. The utility model discloses can just carry out classification and place medical waste when carrying out the nursing operation.

Description

Portable medical waste classification device

Technical Field

The utility model belongs to the technical field of medical waste classification handles, especially, relate to a portable medical waste classification device.

Background

With the wide development of national internet hospital work, internet nursing work is rapidly developed, the number of network nursing work is increased, and work content is expanded, for example, home-based nursing operations such as intravenous infusion, intravenous injection, subcutaneous injection, intramuscular injection, wound dressing change and the like are gradually added into the service category of network nursing, so that the medical requirements of some patients are met, new problems are brought, and the problem of treatment of medical waste is one of the problems.

Medical waste specifically includes infectious, pathological, traumatic, pharmaceutical, chemical waste. The wastes contain a large amount of bacteria and viruses and have certain characteristics of space pollution, acute virus infection and latent infection, if the wastes are not managed intensively and are discarded randomly, the wastes are mixed into household garbage and are scattered into the living environment of people, the atmosphere, water sources, land, animals and plants are polluted, the disease transmission is caused, and the physical and mental health of people is seriously harmed. All medical waste and domestic waste can not be mixed. Must be carried by the medical staff of the individual's house, sorted in the patient's home, back to the medical facility for disposal as prescribed.

However, since the conventional garbage sorting barrel of the medical institution is large in size and is independently placed, and the garbage sorting barrel cannot be carried about in home medical treatment and nursing, a portable medical garbage sorting and processing device needs to be designed, so that the medical garbage can be sorted, processed and placed while nursing operation is performed, and then the medical garbage can be taken back to the medical institution for centralized processing, and the portable medical garbage sorting and processing device has important practical significance.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the problem that exists among the above-mentioned prior art, provide one kind and can just carry out classification and the portable medical waste classification device who places medical waste when carrying out the nursing operation.

The utility model discloses a solve the technical scheme who takes of this problem and be:

the utility model provides a portable medical waste sorting device, includes the stereoplasm case body, the upper end cover of stereoplasm case body has collapsible open's case lid, the top left and right sides of stereoplasm case body even has the baldric, divide into at least three subregion in the stereoplasm case body, each respectively in the subregion detachable installs damaging waste garbage bin or infectious waste garbage bin or general medical waste garbage bin respectively, the upper end of damaging waste garbage bin is equipped with throws the mouth, is used for sealing up the disposable lid of closing up and throws the mouth, infectious waste garbage bin, the upper end of general medical waste garbage bin are equipped with flip respectively, but correspond on the case lid and be equipped with the interference and fill in intraoral plug of thrower, can joint flip's frame type draw-in groove.

Preferably, the damaged waste garbage bin is of a cubic box structure with a collection cavity inside, a throwing opening communicated with the collection cavity is formed in the upper end of the damaged waste garbage bin, a sliding groove in butt joint with the throwing opening is further formed in one side of the throwing opening, and the disposable sealing cover is slidably mounted on the sliding groove and can cover the upper portion of the throwing opening.

Further preferably, the chute is arranged on the upper surface of the damaged waste garbage can, two ends of the disposable sealing cover are arranged in the chute in a sliding mode, a locking piece is further arranged at one end, close to the throwing opening, of the disposable sealing cover, and a locking cavity matched with the locking piece is formed in one side of the throwing opening.

Further preferably, the throwing opening is of a circular, oval or regular polygonal hole-shaped structure, the shape of the disposable sealing cover is matched with that of the throwing opening, and the size of the disposable sealing cover is slightly larger than that of the throwing opening.

Further preferably, the deadlocking member is arrow-shaped, and the deadlocking cavity prevents the deadlocking member from retreating through the narrowed opening end, thereby forming a deadlocking state.

Preferably, the infectious waste garbage bin and the general medical waste garbage bin are respectively of a cubic box structure with an open upper end, the open end of the infectious waste garbage bin and the general medical waste garbage bin is pivotally connected with a flip cover for closing the open end, and disposable garbage bags are respectively sleeved in the infectious waste garbage bin and the general medical waste garbage bin.

Further preferably, the size of the frame-shaped clamping groove is slightly larger than that of the flip cover, and a plurality of clamping protrusions are formed on the inner side of the frame-shaped clamping groove in a protruding mode.

Preferably, the front end of the hard box body is provided with a nylon fastener suede, and the box cover is correspondingly provided with a nylon fastener hook surface.

Preferably, the stereoplasm case body is split type structure, and it includes at least three components of a whole that can function independently case that connects gradually, and the upper end of every components of a whole that can function independently case covers respectively has collapsible open components of a whole that can function independently case lid, and every components of a whole that can function independently incasement corresponds a subregion, each in the subregion respectively detachable install injury nature waste garbage bin or infectious waste garbage bin or general medical waste garbage bin, each but correspond to be equipped with the frame type draw-in groove that can interference fill in the intraoral plug of throwing or joint flip.

Preferably, at least four cylindrical holes arranged in a matrix are formed in the left side of each split box in a concave mode, a first magnetic attraction block is arranged in each cylindrical hole, and four second magnetic attraction blocks which are inserted into the cylindrical holes in a matched mode and magnetically attracted with the first magnetic attraction blocks are formed in the right side of each split box in a protruding mode.

The utility model has the advantages and positive effects that:

1. this portable medical waste classification device can solve the difficult problem of medical waste treatment in the medical care process at home effectively, and device reasonable in design and safe in utilization, easy operation easily learns, can generally be applied to medical care at home, has very strong clinical practicality and social application prospect, is worth promoting.

2. The utility model discloses in, medical staff can throw the traumatic waste garbage through throwing the mouth and collect in the traumatic waste garbage bin, will once only seal the lid and seal and die on throwing the mouth after collecting the completion, can't open once more, realize the disposable that the traumatic waste garbage bin was used once more, and safety and sanitation accords with the traumatic waste centralized processing standard.

3. The utility model discloses in, infectious waste garbage bin, general medical waste garbage bin are used for collecting infectious waste garbage, general medical waste rubbish respectively, can place special disposal bag in advance the inlayer, conveniently carry, and infectious waste garbage bin, general medical waste garbage bin can use repeatedly, and safety and sanitation accord with infectious waste garbage, general medical waste rubbish centralized processing standard.

4. The utility model discloses in, stereoplasm case body is split type structure, can select the components of a whole that can function independently case of suitable quantity to constitute a portable medical waste sorter jointly according to the actual demand, improves the practicality of using.

Drawings

The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and examples, but it should be understood that these drawings are designed for illustrative purposes only and thus are not intended to limit the scope of the present invention. Furthermore, unless otherwise indicated, the drawings are intended to be illustrative of the structural configurations described herein and are not necessarily drawn to scale.

FIG. 1 is a schematic structural view of a rigid case body in embodiment 1;

FIG. 2 is a schematic view showing the structure of the hard case body in the assembled state with the waste bin for traumatic, infectious and general medical waste in example 1;

FIG. 3 is a schematic front view of the structure of embodiment 1;

FIG. 4 is a schematic view of the construction of the hazardous waste trash can;

FIG. 5 is a schematic top view of the hazardous waste trash can;

FIG. 6 is a schematic view of the deadlocking member of FIG. 5 in a deadlocked condition;

FIG. 7 is a schematic view of the construction of an infectious waste bin;

fig. 8 is a schematic structural view of the state in which the lid is opened in fig. 7;

FIG. 9 is a schematic view showing the structure of the hard case body in the assembled state with the refuse receptacle for traumatic, infectious and general medical wastes according to example 2;

fig. 10 is a schematic front view of the structure of embodiment 2.

In the figure: 1. the garbage can comprises a hard box body, a box cover, a shoulder belt, a partition area, a damage waste garbage can, a infectious waste garbage can, a general medical waste garbage can, a throwing opening, a disposable sealing cover, a flip cover, a rubber plug, a frame-shaped clamping groove, a sliding groove, a locking piece, a locking cavity, a split box cover, a column-shaped hole, a first magnetic block, a second magnetic block and a cover, wherein the hard box body, the box cover, the shoulder belt, the partition area, the damage waste garbage can, the infectious waste garbage can, the common medical waste garbage can, the throwing opening, the disposable sealing cover, the flip cover, the rubber plug, the frame-shaped clamping groove, the sliding groove, the locking piece, the locking cavity, the split box cover, the sliding groove, the locking piece, the sliding groove, the column-shaped hole, the first magnetic block, the second magnetic block and the second magnetic block.

Detailed Description

First, it should be noted that the specific structures, features, advantages, etc. of the present invention will be described in detail below by way of example, but all the descriptions are only for illustrative purpose and should not be construed as forming any limitation to the present invention. Furthermore, any single feature described or implicit in any embodiment or any single feature shown or implicit in any drawing may still be combined or subtracted between any of the features (or equivalents thereof) to obtain still further embodiments of the invention that may not be directly mentioned herein. In addition, for the sake of simplicity, the same or similar features may be indicated in only one place in the same drawing.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations. The present invention will be described in detail with reference to fig. 1 to 10.

Example 1:

as shown in fig. 1-8, a portable medical waste sorting device comprises a hard box body 1, a foldable and openable box cover 2 covers the upper end of the hard box body 1, shoulder straps 3 are connected to the left and right sides of the top of the hard box body 1, and the hard box body 1 is divided into at least three partitions 4; each respectively detachable installs in the subregion 4 damageable waste garbage bin 5 or infectious waste garbage bin 6 or general medical waste garbage bin 7, damageable waste garbage bin 5's upper end is equipped with throws mouthful 8, is used for sealing up disposable sealing cover 9 of throwing mouthful 8, infectious waste garbage bin 6, general medical waste garbage bin 7's upper end is equipped with flip 10 respectively, but the frame type draw-in groove 12 that corresponds to be equipped with plug 11, joint flip 10 in the mouth of throwing 8 can be filled in to the interference on the case lid 2.

The working principle is as follows: medical waste generated in the network nursing work needs to be classified by a medical staff who enters a home and is taken back to a medical institution to be treated according to the regulations, the medical waste specifically comprises infectious, pathological, traumatic, medicinal, chemical waste and the like, the portable medical waste classification device provided in the technical scheme can classify and place the medical waste while performing nursing operation and then is taken back to the medical institution to be treated in a centralized manner, the portable medical waste classification device comprises a hard box body 1, a cover 2 which can be folded and opened is covered on the upper end of the hard box body 1, the hard box body 1 is divided into at least three subareas 4, each subarea 4 is internally and detachably provided with an injurious waste garbage can 5 or an infectious waste garbage can 6 or a common medical waste can 7, preferably, each hard box body 1 is internally and detachably provided with at least one injurious waste can 5, each wounded garbage can be taken back to the medical institution to be treated in a centralized manner, At least one infectious waste receptacle 6, at least one general medical waste receptacle 7, wherein: the device is characterized in that the interior of the traumatic waste garbage can 5 is used for placing traumatic waste garbage, the box cover 2 is correspondingly provided with a rubber plug 11 which can be plugged into the throwing opening 8 in an interference manner, when the box cover 2 is closed, the rubber plug 11 is just plugged into the throwing opening 8 in the interference manner to block the throwing opening 8, after the box cover 2 is opened, the rubber plug 11 is separated from the throwing opening 8, medical personnel can throw the traumatic waste garbage into the traumatic waste garbage can 5 through the throwing opening 8 for collection, and after the collection is finished, the disposable sealing cover 9 is sealed on the throwing opening 8 and cannot be opened again, so that the one-time use of the traumatic waste garbage can 5 is realized, the device is safe and sanitary, and the centralized treatment standard of the traumatic waste is met; the infectious waste garbage bin 6 and the general medical waste garbage bin 7 are respectively used for collecting infectious waste garbage and general medical waste garbage, when the box cover 2 is closed, the frame-shaped clamping grooves 12 can be clamped on the flip covers 10 through pressing the frame-shaped clamping grooves 12, after the box cover 2 is opened, the flip covers 10 can be opened along with the frame-shaped clamping grooves 12, medical staff can throw the infectious waste garbage and the general medical waste garbage into the infectious waste garbage bin 6 and the general medical waste garbage bin 7 respectively for collection, it is required to be noted that special garbage bags are placed on the inner layers in advance when the infectious waste garbage bin 6 and the general medical waste garbage bin 7 are used, a lifting handle is arranged outside the whole device, the carrying is convenient, the garbage bags are only required to be replaced in the later stage, the infectious waste garbage bin 6 and the general medical waste garbage bin 7 can be repeatedly used, safety and sanitation are achieved, and the infectious waste garbage bin 6 and the general medical waste garbage bin 7 can be used repeatedly, General medical waste rubbish centralized processing standard, the difficult problem of medical waste processing in this portable medical waste classification device can solve at home medical care process effectively, and device reasonable in design and safe in utilization, market demand is big, has practical value.

It should be noted that the device may be, but not limited to, made of plastic, the external size is preferably 40cm × 30cm × 20cm, and the device has at least three independent partitions therein, wherein at least one partition may be provided with a small-sized traumatic waste trash can 5, and at least two partitions are provided with an infectious waste trash can 6 and a general medical waste trash can 7, respectively.

This product has standard medical waste management, guarantees patient and the effect of environment safety at home, uses this medical waste classification device, and easy operation easily learns, but the universal application is in medical care at home, has very strong clinical practicality and social application prospect, is worth promoting.

Furthermore, it can be considered in this embodiment that the waste garbage can 5 is a cubic box structure with a collecting cavity inside, the upper end of the waste garbage can is provided with a throwing opening 8 communicated with the collecting cavity, one side of the throwing opening 8 is further provided with a sliding groove 13 in butt joint with the throwing opening 8, and the disposable sealing cover 9 is slidably mounted on the sliding groove 13 and can cover the upper side of the throwing opening 8. When opening case lid 2 after, plug 11 breaks away from in throwing the mouth 8, medical staff can throw the collection intracavity with the injury nature waste material rubbish through throwing the mouth 8 and collect, and slide to throwing a mouth 8 top and seal through spout 13 with disposable sealing cover 9 after the collection is accomplished, make it unable reopening, realize the disposable that the injury nature waste material garbage bin 5 is used once only, and safety and sanitation accords with injury nature waste material centralized processing standard.

Furthermore, it can be considered in this embodiment that the sliding groove 13 is opened on the upper surface of the waste bin 5, two end portions of the disposable sealing cover 9 are slidably disposed in the sliding groove 13, a locking member 14 is further disposed at one end of the disposable sealing cover 9 close to the throwing port 8, and a locking cavity 15 matched with the locking member 14 is disposed at one side of the throwing port 8. After the collection is finished, the disposable sealing cover 9 slides to the upper side of the throwing opening 8 through the sliding groove 13, the locking piece 14 is inserted into the locking cavity 15, the locking cavity 15 can prevent the locking piece 14 from retreating, so that the disposable sealing cover 9 cannot be opened again, the disposable use of the damaged waste garbage can 5 is realized, safety and sanitation are realized, and the centralized treatment standard of damaged waste is met.

Furthermore, it is also considered in this embodiment that the throwing opening 8 is a circular, oval or regular polygonal hole-shaped structure, the shape of the disposable sealing cover 9 is matched with the shape of the throwing opening 8, and the size of the disposable sealing cover 9 is slightly larger than that of the throwing opening 8.

Further, it is also contemplated in this embodiment that the deadlocking member 14 is arrow-shaped as shown in fig. 4-6, and the deadlocking cavity 15 prevents the deadlocking member 14 from moving backward through the narrowed open end, thereby forming a deadlocking state. After the collection is finished, the disposable sealing cover 9 slides to the upper side of the throwing opening 8 through the sliding groove 13, the locking piece 14 is inserted into the locking cavity 15, the size of the opening end of the locking cavity 15 is small, so that the locking piece 14 cannot retreat, a locking state is formed, the disposable sealing cover 9 cannot be opened again, and the disposable use of the damaged waste garbage can 5 is realized.

Furthermore, it is also considered in this embodiment that the infectious waste trash can 6 and the general medical waste trash can 7 are respectively of a cubic box structure with an open upper end, a flip cover 10 for closing the open end is pivotally connected to the open end, and disposable trash bags are respectively sleeved in the infectious waste trash can 6 and the general medical waste trash can 7. The flip cover 10 can be opened or closed along with the frame-shaped clamping groove 12, the operation is convenient, only the garbage bag needs to be replaced in the later stage, and the infectious waste garbage can 6 and the general medical waste garbage can 7 can be repeatedly used.

Furthermore, it can be considered in this embodiment that the size of the frame-shaped card slot 12 is slightly larger than that of the flip cover 10, and a plurality of clamping protrusions are formed on the inner side of the frame-shaped card slot 12. When the case cover 2 is closed, the frame-shaped clamping grooves 12 can be clamped on the respective flip covers 10 by pressing the frame-shaped clamping grooves 12, after the case cover 2 is opened, the flip covers 10 can be opened along with the frame-shaped clamping grooves 12, and a plurality of clamping protrusions are formed on the inner side protrusions of the frame-shaped clamping grooves 12, so that the flip covers 10 can be clamped in the frame-shaped clamping grooves 12 tightly.

Furthermore, it can be considered in this embodiment that the front end of the hard box body 1 is provided with a surface of a velcro, and the box cover 2 is correspondingly provided with a surface of a velcro hook. The box cover 2 can be buckled on the hard box body 1 through a hook surface of a nylon fastener and a suede surface of the nylon fastener which are matched.

Example 2:

embodiment 2 of the present invention is further modified from embodiment 1 so as to fully exert the technical advantages of the present invention, and this will be exemplified below.

For example: as shown in fig. 9-10, the hard case body 1 is a split structure, and includes at least three split cases 16 connected in sequence, the upper end of each split case 16 is covered with a split case cover 17 capable of being opened by folding, each split case 16 is internally provided with a corresponding partition 4, each partition 4 is internally provided with an injury waste garbage can 5, an infection waste garbage can 6 or a general medical waste garbage can 7 in a detachable manner, and each split case cover 17 is correspondingly provided with a rubber plug 11 capable of being plugged into the throwing opening 8 in an interference manner or a frame-shaped slot 12 capable of being connected with the turning cover 10 in a clamping manner. The split boxes 16 with proper quantity can be selected according to actual requirements to jointly form the portable medical waste classification device, so that the practicability of use is improved.

Furthermore, it can be considered in this embodiment that the left side of each split box 16 is recessed to form at least four cylindrical holes 18 arranged in a matrix, a first magnetic attraction block 19 is disposed in each cylindrical hole 18, and the right side of each split box 16 is protruded to form four second magnetic attraction blocks 20 that can be respectively inserted into the cylindrical holes 18 in a matching manner and magnetically attracted to the first magnetic attraction blocks 19. The first magnetic attraction block 19 and the second magnetic attraction block 20 which are attracted through magnetism between the two adjacent split boxes 16 are assembled into a whole, so that the assembly is convenient, wherein: the second magnetic block 20 can be inserted into the cylindrical hole 18 in a matching way and also can play a role in positioning. It should be noted that the first magnetic attraction block 19 and the second magnetic attraction block 20 can be, but not limited to, ferrite magnets or neodymium iron boron magnets.

To sum up, the utility model provides a can just carry out classification and portable medical waste classification device who places medical waste when carrying out the nursing operation.

The above embodiments are described in detail, but the above description is only for the preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. The utility model provides a portable medical waste classification device, includes stereoplasm box body (1), the upper end of stereoplasm box body (1) covers there is collapsible open case lid (2), even there are baldric (3) the top left and right sides of stereoplasm box body (1), separate into at least three subregion (4) in stereoplasm box body (1), its characterized in that:

each in subregion (4) respectively detachable install injury nature waste material garbage bin (5) or infectious waste material garbage bin (6) or general medical waste material garbage bin (7), the upper end of injury nature waste material garbage bin (5) is equipped with throws mouthful (8), is used for sealing up disposable seal closure (9) of throwing mouthful (8), the upper end of infectious waste material garbage bin (6), general medical waste material garbage bin (7) is equipped with flip (10) respectively, but correspond on case lid (2) and be equipped with plug (11), the frame type draw-in groove (12) of joint flip (10) in can the interference fill in throwing mouthful (8).

2. A portable medical waste sorting device according to claim 1, further comprising: the injury nature waste garbage bin (5) is the cube box structure that inside was equipped with the collection chamber, and its upper end is seted up and is collected mouth (8) of throwing that the chamber is linked together, one side of throwing mouth (8) still is equipped with spout (13) of butt joint with it, disposable seal closure (9) slidable mounting is on spout (13) and can cover in throwing mouth (8) top.

3. A portable medical waste sorting device according to claim 2, further comprising: the upper surface at injury nature waste garbage bin (5) is seted up in spout (13), the both ends slip of disposable seal closure (9) sets up in spout (13), the one end that disposable seal closure (9) are close to throwing mouth (8) still is equipped with deadlock spare (14), deadlock cavity (15) with deadlock spare (14) complex are seted up to one side of throwing mouth (8).

4. A portable medical waste sorting device according to claim 3, wherein: throw mouth (8) and be circular, oval or regular polygon porous structure, the shape of disposable flap (9) just with the shape looks adaptation of throwing mouth (8) the size of disposable flap (9) slightly is greater than the size of throwing mouth (8).

5. A portable medical waste sorting device according to claim 4, further comprising: the deadlocking piece (14) is arrow-shaped, and the deadlocking cavity (15) prevents the deadlocking piece (14) from retreating through the reduced opening end, so that a deadlocking state is formed.

6. A portable medical waste sorting device according to claim 1, further comprising: the infectious waste garbage bin (6) and the general medical waste garbage bin (7) are respectively of a cubic box body structure with an opening at the upper end, the opening end of the infectious waste garbage bin is connected with a turnover cover (10) used for closing the opening end in a pivot mode, and disposable garbage bags are sleeved in the infectious waste garbage bin (6) and the general medical waste garbage bin (7) respectively.

7. The portable medical waste sorting device of claim 6, wherein: the size of frame type draw-in groove (12) slightly is greater than the size of flip (10), the inboard arch of frame type draw-in groove (12) is formed with a plurality of joint archs.

8. A portable medical waste sorting device according to claim 1, further comprising: the front end of the hard box body (1) is provided with a nylon fastener suede, and the box cover (2) is correspondingly provided with a nylon fastener hook surface.

9. A portable medical waste sorting device according to any one of claims 1 to 8, further comprising: hard box body (1) is split type structure, and it includes at least three components of a whole that can function independently case (16) that connect gradually, and the upper end of every components of a whole that can function independently case (16) covers respectively has collapsible open components of a whole that can function independently case lid (17), corresponds a subregion (4) in every components of a whole that can function independently case (16), each in subregion (4) respectively detachable install injury nature waste garbage bin (5) or infectious waste garbage bin (6) or general medical waste garbage bin (7), each it can interference plug in plug (11) or the frame type draw-in groove (12) of joint flip (10) in throwing mouth (8) to correspond on components of a whole that can function independently case lid (17).

10. A portable medical waste sorting device according to claim 9, further comprising: the left side of each split box (16) is recessed to form at least four cylindrical holes (18) arranged in a matrix, a first magnetic attraction block (19) is arranged in each cylindrical hole (18), and the right side of each split box (16) is raised to form four second magnetic attraction blocks (20) which can be respectively inserted into the cylindrical holes (18) in a matched mode and magnetically attracted with the first magnetic attraction blocks (19).