CN201185755Y

CN201185755Y - Combined cabinet

Info

Publication number: CN201185755Y
Application number: CNU2008200008925U
Authority: CN
Inventors: 陈顺义
Original assignee: Protrend Co Ltd
Current assignee: Protrend Co Ltd
Priority date: 2008-04-03
Filing date: 2008-04-03
Publication date: 2009-01-28
Anticipated expiration: 2018-04-03

Abstract

The utility model relates to a combination cabinet, which is mainly composed of a base, a top plate, a back plate, a left plate and a right plate, wherein the back edge and two side edges of the top face of the base are respectively provided with a slot for plugging the lower ends of the back plate, the left plate and the right plate, the back edge and two side edges of the bottom face of the top plate are respectively provided with a slot for plugging the upper ends of the back plate, the left plate and the right plate, thereby forming a cabinet, the pinholes on the top plate and the base, the holes on the upper and lower ends of the back plate, the left plate and the right plate are penetrated through by pins to prevent the the back plate, the left plate and the right plate from being separated from the top plate and the base. The combination cabinet can be assembled without tools, having simple operation.

Description

Combined cabinet

Technical Field

The present invention relates to a combined cabinet, and more particularly to a combined cabinet which can be assembled without using tools.

Background

To avoid the messy storage of items around, cabinet assemblies are used to store the items. At present, a common cabinet device is made of wood materials, the appearance design is more attractive and changeable, but the structure is more complex, so that the difficulty in disassembly and assembly is higher, and non-professional personnel are not easy to assemble or disassemble. And the cabinet made of wood material has heavy weight, which makes the carrying and moving inconvenient.

Some cabinets made of plastic materials are also available on the market for consumers to choose from. Because the structural strength of the plastic cabinet is gradually reduced, the plastic cabinet cannot be manufactured into a cabinet with a larger volume, so that the size of articles to be stored is smaller, the types are fewer, the number is also fewer, and the using effect is not ideal.

The current commercial cabinet made of metal material must be assembled by locking the components together by means of screws. Therefore, the assembly process requires the use of tools, which is time-consuming and troublesome.

Disclosure of Invention

The utility model discloses a main objective provides a modular cabinet, and it just can assemble need not the use of tools, and it is comparatively convenient in the equipment.

The present invention provides a combined cabinet, which utilizes the insertion structure of the panel and the slot to make the assembly easier.

In order to achieve the above object, the utility model adopts the following technical scheme:

a modular cabinet, comprising:

the rear edge and the two side edges of the top surface of the base are respectively provided with a slot, and the slots on the two side edges are respectively communicated with the two ends of the rear edge slot; the rear end and the two side ends of the base are respectively provided with at least two pin holes, and each pin hole penetrates through the corresponding slot;

the rear edge and the two side edges of the bottom surface of the top plate are respectively provided with a slot, and the slots are correspondingly arranged with the slots on the top surface of the base; the rear end and the two side ends of the top plate are respectively provided with at least two pin holes, and each pin hole penetrates through the corresponding slot;

the lower end of the back plate is inserted into the slot at the rear edge of the base, and the upper end of the back plate is inserted into the slot at the rear edge of the top plate; through holes are arranged on the back plate corresponding to the pin holes of the base and the top plate;

the lower end of the left side plate is inserted into the slot on the left side edge of the base, and the upper end of the left side plate is inserted into the slot on the left side edge of the top plate; the rear end of the left side plate is spliced with the left end of the back plate; the left side plate is provided with a through hole corresponding to the pin holes of the base and the top plate;

the lower end of the right side plate is inserted into the slot at the right edge of the base, and the upper end of the right side plate is inserted into the slot at the right edge of the top plate; the rear end of the right side plate is spliced with the right end of the back plate; the right side plate is provided with a through hole corresponding to the pin holes of the base and the top plate;

and the number of the first and second groups,

a plurality of bolts; each bolt penetrates through the pin holes of the base and the top plate and simultaneously penetrates through the corresponding through holes on the back plate, the left side plate and the right side plate.

Compared with the prior art, adopt above-mentioned technical scheme the utility model has the advantages of: the utility model provides a modular cabinet does not need the use of tools when the equipment, and the equipment is easy. When the cabinet is assembled, the cabinet body can be assembled only by inserting the board surfaces into the corresponding slots on the base and the top board. And then all the bolts are inserted into the pin holes on the base and the top plate, and the assembly can be finished. The utility model discloses more can cooperate the equipment of putting thing layer, drawer, and more be favorable to people to store article. Specifically, the method comprises the following steps:

1. the utility model discloses utilize the bolt to run through the pinhole that the base set up, and backplate, left side board, the hole that the right side board lower extreme set up, in order to prevent backplate, left side board, right side board with the base separation.

2. The utility model discloses utilize the bolt to run through the pinhole that the roof set up, and backplate, left side board, the hole that sets up on the right side board, in order to prevent backplate, left side board, right side board with roof separation.

3. The utility model discloses in, the medial surface of backplate be provided with two at least plumbous straight form U-shaped posts, just the upper and lower end of U-shaped post insert respectively the slot of roof and base in, in order to strengthen the intensity of backplate. At least one row of hanging holes are arranged on the front end face of the U-shaped column so as to be convenient for hanging the supporting piece and being capable of erecting a layer board or a net layer.

4. The utility model discloses in, the medial surface of left and right side board be provided with two at least plumbous straight form U-shaped posts, just the upper and lower extreme of U-shaped post insert respectively the slot of roof and base in, in order to strengthen the intensity of backplate. The front end face of the U-shaped column is provided with a row of hanging holes so as to be convenient for hanging the rail and erecting the drawer.

Drawings

FIG. 1 is an external view of an embodiment of the present invention;

FIG. 2 is an external view of the base of the embodiment shown in FIG. 1;

FIG. 3 is an exterior view of the base of FIG. 2 flipped 180 forward;

FIG. 4 is an external view of the top plate of the embodiment of FIG. 1;

FIG. 5 is an exterior view of the top plate of FIG. 4 flipped 180 forward;

FIG. 6 is a cross-sectional view of the embodiment of FIG. 1;

FIG. 7 is a cross-sectional view taken at 7-7 of FIG. 6;

FIG. 7-1 is an enlarged view of section A of FIG. 7;

FIG. 7-2 is an enlarged view of section B of FIG. 7;

FIG. 8 is a cross-sectional view taken at 8-8 of FIG. 6;

FIG. 9 is an external view of the back plate;

FIG. 10 is an external view of the left side panel;

FIG. 11 is an external view of the right side plate;

fig. 12 is an external view of the joint member;

FIG. 13 is a view showing the bolt fastened to the right side plate;

FIG. 14 is a view of the embodiment of FIG. 1 with plies added;

FIG. 15 is a view of the embodiment of FIG. 1 with the door panel attached;

FIG. 16 is an inside view of the door panel;

FIG. 17 is a view showing a door panel with a hanging rod and a storage box;

FIG. 18 is a state diagram of the embodiment of FIG. 1 with the track attached;

FIG. 19 is a view of the embodiment of FIG. 16 with the drawer attached;

FIG. 20 is a cross-sectional view of the base with a foot rest attached;

FIG. 21 is a sectional view of the upper and lower cabinets assembled by bolts;

fig. 22 is an external view of another embodiment of the present invention.

Description of reference numerals: 10-a base; 11-a slot; 111-a first widening zone; 112-a second widening zone; 12-a slot; 121-a third widening zone; 13-a slot; 131-a third widening zone; 14-pin holes; 15-a guide block; 151-inclined plane; 16-small holes; 17-screw hole; 20-a base; 21-slot; 211 — a first widening zone; 212-second widened zone; 22-slot; 221-third widening zone; 23-a slot; 231-third widening zone; 24-pin holes; 25-a guide block; 251-a bevel; 26-small holes; 27-perforating; 30-a back plate; 31-a through hole; 32-a through hole; 33-a tab; 34-a U-shaped post; 341-hanging hole; 342-shelf board surface; 40-left side plate; 41-a through hole; 42-a through hole; 43-a splice; 44-a tab; a 45-U shaped post; 451-hanging holes; 50-right side plate; 51-a through hole; 52-a through hole; 53-splice; 54-a tab; a 55-U shaped post; 551-hanging hole; 60-bolt; 61-screw hole; 62-a tool; 63-a screw section; 64-a joining member; 65-plate surface; 66-a head; 67-connecting piece; 68-a trench; 70-door panel; 71-a boss pin; 72-a movable bolt; 73-inner layer; 731-small hole; 732-a socket; 733-hanging rod; 734-storage box; 74-a tool; 75-a foot rest; 751-a screw section; 752-hexagonal hole; 76-a locating pin; 80-a drawer arrangement; 81-track set.

Detailed Description

In view of the inconvenience of the existing cabinets in assembly, the applicant provides a modular cabinet which is simple in structure and easy to disassemble and assemble. The present invention will be described in detail with reference to the following embodiments and drawings.

Please refer to fig. 1. The utility model discloses a combined cabinet, which is mainly composed of a base 10, a top plate 20, a back plate 30, a left side plate 40 and a right side plate 50 to form a cabinet body. Wherein,

please refer to fig. 2 and fig. 3. The rear edge and the two side edges of the top surface of the base are respectively provided with a

slot

11, 12 and 13, and the

slots

12 and 13 on the two side edges are respectively communicated with the two ends of the rear edge slot 11. Please refer to fig. 4 and 5. The rear edge and the two side edges of the bottom surface of the top plate 20 are respectively provided with a

slot

21, 22, 23, and the

slots

21, 22, 23 are arranged corresponding to the

slots

11, 12, 13 on the top surface of the base 10. Please refer to fig. 6, 7, and 8. The

slots

22 and 23 on the two side edges of the top plate 20 are respectively communicated with the two ends of the rear edge slot 21. The lower end of the back plate 30 is inserted into the slot 11 at the rear edge of the base 10, and the upper end is inserted into the slot 21 at the rear edge of the top plate 20. The lower end of the left side plate 40 is inserted into the slot 12 at the left side edge of the base 10, and the upper end is inserted into the slot 22 at the left side edge of the top plate 20. The lower end of the right side plate 50 is inserted into the slot 13 at the right edge of the base 10, and the upper end is inserted into the slot 23 at the right edge of the top plate 20. The rear end of the left side plate 40 is spliced with the left end of the back plate 30, and the rear end of the right side plate 50 is spliced with the right end of the back plate 30, so that the back plate 30, the left side plate 40 and the right side plate 50 are combined into the wall surface of the cabinet body.

The rear end of the base 10 is provided with five pin holes 14, two side ends are respectively provided with three pin holes 14, and each pin hole 14 penetrates through the corresponding

slot

11, 12 and 13. The rear end of the top plate 20 is provided with five pin holes 24, two side ends are respectively provided with three pin holes 24, and each pin hole 24 penetrates through the corresponding

slot

21, 22 and 23. Referring to fig. 9, through

holes

31 and 32 are disposed on the back plate 30 corresponding to the pin holes 14 and 24 of the base 10 and the top plate 20. Referring to fig. 10, through

holes

41 and 42 are disposed on the left side plate 40 corresponding to the pin holes 14 and 24 of the base 10 and the top plate 20. Referring to fig. 11, through

holes

51 and 52 are formed in the right side plate 50 at positions corresponding to the pin holes 14 and 24 of the base 10 and the top plate 20. Fig. 13 shows the right side plate 50 inserted into the base and top plates and the latch 60 inserted into the base and top plates. The structure is the same as the combination structure of the back plate, the left side plate 50, the base and the top plate. The combination structure of the right side plate 50 and the base and top plates will be described. A plurality of bolts 60 are inserted into the pin holes 14 and 24 of the base 10 and the top plate 20, respectively, and simultaneously penetrate through the corresponding through

holes

31, 32, 41, 42, 51 and 52 of the back plate 30, the left side plate 40 and the right side plate 50, so as to prevent the upper and lower ends of the back plate 30, the left side plate 40 and the right side plate 50 from being separated from the base 10 and the top plate 20. The outer diameter of the inner end of the latch 60 is slightly smaller than the outer end of the latch to facilitate the insertion of the latch 60 into the pin holes 14 and 24. The outer end of the bolt 60 is provided with an axial screw hole 61 which can be screwed into the screw hole 61 of the bolt 60 by means of a screw part 63 of a tool 62, and the bolt 60 can be taken out of the pin holes 14 and 24 by pulling the tool 62. Therefore, the cabinet body is convenient to disassemble.

The rear end of the left side plate 40 is provided with a splicing part 43 protruding inwards, and the splicing part 43 is linearly connected with the left end of the back plate 30, as shown in fig. 7-1. The rear end of the right side plate 50 is provided with a splicing part 53 which is inwards projected in each direction, and the splicing part 53 is linearly connected with the right end of the back plate 30, as shown in fig. 7-2. Referring to fig. 7 and 8, four connecting members 64 are respectively disposed at the upper and lower ends of the two sides of the back plate 30 to connect the back plate 30 with the left and

right side plates

40 and 50. Referring to fig. 12, the connecting member 64 includes a plate 65, a head 66, and a connecting piece 67 connecting the plate 65 and the head 66, and a groove 68 is formed at each end of the connecting piece 67. The connecting piece 64 disposed on the left side of the back plate 30 has

grooves

68, 68 on both sides thereof for allowing the back plate 30 and the left side plate 40 to be inserted, and the connecting piece 64 disposed on the right side of the back plate 30 has

grooves

68, 68 on both sides thereof for allowing the back plate 30 and the right side plate 50 to be inserted.

The upper and lower ends of the rear edges of the left and

right side plates

40, 50 may be respectively provided with a protruding

piece

44, 54 protruding forwards; the upper and lower ends of the two ends of the back plate 30 are respectively provided with a protruding piece 33 protruding forwards. The slots 644, 644 at both ends of the connecting member 64 extend toward the head, allowing the

corresponding tabs

33, 44, 54 to extend into. The engagement members 64 can provide a snap-fit action against the panels 30, 40 (or 30, 50) to be engaged.

The

slots

11, 21 formed on the top surface of the base 10 and the bottom surface of the top plate 20 have first widened

regions

111, 211 corresponding to the respective joints 64. The connecting members 64 are inserted into the corresponding first widening

sections

111 and 211, respectively, to limit the positions of the connecting members 64, so that the back plate 30 and the left and

right side plates

40 and 50 can be more stably spliced.

Please refer to fig. 6 and fig. 7. The

slots

11, 12, 13 on the top surface of the base 10 are shaped to conform to the plate bending shape of the back plate 30 and the left and

right side plates

40, 50, so as to allow the back plate 30 to be inserted into the lower ends of the left and

right side plates

40, 50. In order to facilitate the insertion of the lower ends of the back plate 30 and the left and

right side plates

40, 50 into the corresponding

slots

11, 12, 13, the width of the

slots

11, 12, 13 is greater than the thickness of the back plate 30 and the left and

right side plates

40, 50. The inner side wall surfaces of the

slots

11, 12, 13 are provided with a plurality of guide blocks 15, the distance from the guide blocks 15 to the outer side wall surfaces of the

slots

11, 12, 13 is just equal to the thickness of the back plate 30 and the left and

right side plates

40, 50, and the upper end surface of the guide block 15 is an inclined surface 151 (see fig. 21) which is gradually lowered from inside to outside. When the lower ends of the back plate 30 and the left and

right side plates

40, 50 are inserted into the corresponding

slots

11, 12, 13, the lower ends of the back plate 30 and the left and

right side plates

40, 50 are fastened by being inserted between the guide blocks 15 and the outer wall surfaces of the

slots

11, 12, 13 by being guided by the inclined surfaces 151 at the upper ends of the guide blocks 15. In this embodiment, six guide blocks 15 are respectively disposed in the

slots

12 and 13 on both sides of the top surface of the base 10, and each two guide blocks 15 are disposed in a close manner: eight guide blocks 15 are provided in the slot 11 at the rear end, and every two guide blocks 15 are provided in a close manner.

Please refer to fig. 6 and fig. 8. The shape of the

insertion grooves

21, 22, 23 on the bottom surface of the top plate 20 is matched with the plate bending shape of the back plate 30 and the left and

right side plates

40, 50, so as to allow the back plate 30 to be inserted into the upper ends of the left and

right side plates

40, 50 correspondingly. In order to facilitate the insertion of the upper ends of the back plate 30 and the left and

right side plates

40, 50 into the corresponding

slots

21, 22, 23, the width of the

slots

21, 22, 23 is greater than the thickness of the back plate 30 and the left and

right side plates

40, 50. The inner side wall surfaces of the

slots

21, 22, 23 are provided with a plurality of guide blocks 25, the distance from the guide blocks 25 to the outer side wall surfaces of the

slots

21, 22, 23 is just equal to the thickness of the back plate 30 and the left and

right side plates

40, 50, and the lower end surface of the guide block 25 is an inclined surface 251 (see fig. 21) which is higher from inside to outside. When the lower ends of the back plate 30 and the left and

right side plates

40, 50 are inserted into the corresponding

slots

21, 22, 23, the lower ends of the back plate 30 and the left and

right side plates

40, 50 are inserted between the guide blocks 25 and the outer wall surfaces of the

slots

21, 22, 23 by being guided by the inclined surfaces 251 of the lower ends of the guide blocks 25, so as to fasten the upper ends of the back plate 30 and the left and

right side plates

40, 50. In this embodiment, six guide blocks 25 are respectively disposed in the

slots

22 and 23 on both sides of the bottom surface of the top plate 20, and each two guide blocks 25 are disposed in a close manner: eight guide blocks 25 are provided in the slot 21 at the rear end, and every two guide blocks 25 are provided in a close manner.

At least two vertical U-shaped columns 34 are disposed on the inner side of the back plate 30, and the upper and lower ends of the U-shaped columns 34 are respectively inserted into the second widening

areas

112, 212 disposed in the

slots

11, 21 of the base 10 and the top plate 20, as shown in fig. 7 and 8. The two U-shaped columns 34 are arranged to strengthen the strength of the back plate 30. Two rows of hanging holes 341 are arranged on the front end surface of the U-shaped column 34 so as to be convenient for hanging a shelf board 342, see fig. 14.

The aforementioned cabinet body composed of the base 10, the top plate 20, the back plate 30, the left side plate 40, and the right side plate 50 has an opening at the front end that can be closed by at least one door panel 70, as shown in fig. 15. Referring to fig. 16, a downwardly protruding pin 71 is disposed at the bottom of one side of the door panel 70, and a retractable and upwardly protruding movable pin 72 is disposed at the top thereof; the protruding pin 71 is inserted into a preset small hole 16 on the top surface of the base 10, and the movable latch 72 is inserted into a preset small hole 26 on the bottom surface of the top plate 20, so that the door panel 70 can rotate around the protruding pin 71 and the movable latch 72 as axes. Referring to fig. 17, an inner layer 73 is disposed on the inner surface of the door panel 70, and a plurality of small holes 731 and a plurality of horizontal insertion holes 732 are disposed on the inner layer 73, so as to hook the hanging rod 733 and the storage box 734.

Two vertical

U-shaped columns

45, 55 are correspondingly arranged on the inner side surfaces of the left and

right side plates

40, 50, and the upper and lower ends of the

U-shaped columns

45, 55 are respectively inserted into the third widening

areas

121, 131, 221, 231 of the

slots

12, 13, 22, 23 of the base 10 and the top plate 20. The two

U-shaped columns

45, 45 are arranged to reinforce the strength of the left and

right side plates

45, 55. The inner side end surfaces of the

U-shaped columns

45 and 55 are provided with a plurality of hanging

holes

451 and 551. The equal-height hanging holes on the two U-shaped columns 451, 451 (or 551, 551) on the same side can be used for hooking and fixing a rail device 81, as shown in fig. 18. A drawer device 80 can be mounted on two rail devices 81 with equal height on both sides, as shown in FIG. 19. The structure of the track device 81 and the drawer device 80 belongs to the prior art, and is not the features of the present invention, and therefore, the description thereof is omitted.

Please refer to fig. 20. The base 10 is provided with a screw hole 17 at a position close to each of the four corners, so that a foot rest 75 or a rotating wheel (not shown) is screwed on each of the screw holes. A hexagonal hole 752 is formed at the center of the screw portion 751 of the stand 75, and an assembler can insert a tool 74 into the hexagonal hole 752 above the base to adjust the height of the stand 75. Please refer to fig. 21. Four through holes 27 are correspondingly arranged at the positions of the top plate 20 corresponding to the four screw holes 17 of the base 10, so that the upper cabinet body and the lower cabinet body can be aligned and spliced by means of the four positioning pins 76.

In the previous embodiment, the number of the back plates 30 is one, and the length of the base 10 'and the top plate 20' is increased in the other embodiment shown in fig. 22, so that the internal space of the combination cabinet can be increased. In the embodiment, the width of the left side plate (not shown in the figure), the width of the right side plate and the width of the right side plate 50' are unchanged, the height is increased, and the back wall surface of the cabinet body can be formed by splicing two back plates (not shown in the figure) from left to right. The upper and lower ends of the splicing portion of the two back plates are also snap-connected by the aforementioned connecting member 64.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A modular cabinet, comprising:

and the number of the first and second groups,

2. The modular cabinet of claim 1, wherein: the connecting pieces are arranged at the upper end and the lower end of the two ends of the back plate so as to be connected between the back plate and the left side plate and the right side plate; the connecting piece comprises a plate surface, a head part and a connecting piece connected between the plate surface and the head part, and two grooves are formed at two ends of the connecting piece respectively; the groove on the two sides of the connecting piece arranged on the left side of the back plate respectively allows the back plate and the left side plate to be inserted; the grooves on the two sides of the connecting piece arranged on the right side of the back plate allow the back plate and the right side plate to be inserted respectively.

3. The modular cabinet of claim 2, wherein: the rear ends of the left side plate and the right side plate are inwards provided with a part in each direction and are linearly connected with the two ends of the back plate; the upper end and the lower end of the rear edges of the left side plate and the right side plate are respectively provided with a lug protruding forwards; the upper end and the lower end of the two ends of the back plate are respectively provided with a lug protruding forwards; the grooves at the two side ends of the connecting piece extend towards the head part to allow the corresponding lugs to extend into.

4. The modular cabinet of claim 2, wherein: and the connecting pieces are respectively inserted into the corresponding slots on the base and the top plate.

5. The modular cabinet of claim 1, wherein: the shape of the slot on the base is matched with the plate surface bending shapes of the back plate and the left and right side plates, and the width of the slot is larger than the thickness of the back plate and the left and right side plates; the inner side wall surface of the slot is provided with a plurality of guide blocks, the distance from the guide blocks to the outer side wall surface of the slot is equal to the thickness of the back plate and the left and right side plates, and the upper end surface of each guide block is an inclined plane gradually reduced from inside to outside.

6. The modular cabinet of claim 1, wherein: the shape of the slot on the top plate is matched with the plate surface bending shapes of the back plate and the left and right side plates, and the width of the slot is larger than the thickness of the back plate and the left and right side plates; the inner side wall surface of the slot is provided with a plurality of guide blocks, the distance from the guide blocks to the outer side wall surface of the slot is equal to the thickness of the back plate and the left side plate and the right side plate, and the lower end surface of each guide block is an inclined plane gradually reduced from inside to outside.

7. The modular cabinet of claim 1, wherein: the inner side surface of the back plate is provided with at least two vertical U-shaped columns, and the upper end and the lower end of each U-shaped column are respectively inserted into the slots of the top plate and the base.

8. The modular cabinet of claim 7, wherein: the front end face of the U-shaped column is provided with at least one row of hanging holes.

9. The modular cabinet of claim 1, wherein: the combined cabinet further comprises at least one door panel, and the door panel can seal the opening at the front end of the combined cabinet; the bottom of one side of the door panel is provided with a convex pin protruding downwards, and the top of the door panel is provided with a movable bolt which can retract inwards and protrudes upwards; the convex pin is used for being inserted into a preset small hole on the top surface of the base, and the movable bolt is used for being inserted into a preset small hole on the bottom surface of the top plate, so that the door plate can rotate by taking the convex pin and the movable bolt as axes.

10. The modular cabinet of claim 1, wherein: the inner side surfaces of the left side plate and the right side plate are respectively provided with two vertical U-shaped columns in a corresponding shape, and the upper end and the lower end of each U-shaped column are respectively inserted into the slots of the top plate and the base.

11. The modular cabinet of claim 1, wherein: further comprises at least one drawer device and at least two rail devices; wherein, the inner side surfaces of the left side plate and the right side plate are respectively provided with two vertical U-shaped columns in a corresponding shape, and the upper end and the lower end of each U-shaped column are respectively inserted into the slots of the top plate and the base; at least one hanging hole is formed in the inner side face of each U-shaped column; the equal-height hanging holes on the two U-shaped columns on the same side are used for hanging a rail device, and the drawer device is erected on the rail.