CN113453470B

CN113453470B - Spare part combination for tool-free operation and cabinet for radar system

Info

Publication number: CN113453470B
Application number: CN202110750169.9A
Authority: CN
Inventors: 王思佳; 刘剑; 赵德斌; 王海宁; 李亦健
Original assignee: Beijing Institute of Radio Measurement
Current assignee: Beijing Institute of Radio Measurement
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2022-09-02
Anticipated expiration: 2041-07-02
Also published as: CN113453470A

Abstract

The invention relates to a spare part combination for tool-free operation and a cabinet for a radar system. The cabinet for the radar system comprises a cabinet body and the spare part combination, wherein the supporting components on two sides of the spare part combination are respectively connected in the cabinet body. The spare part combination disclosed by the invention does not need to be disassembled and assembled by means of tools, only needs to be drawn out from the top cover by means of the guide rail, can be quickly disassembled and assembled, can meet the vehicle-mounted requirement, and has application requirements of low cost, high reliability and the like. Spare part combination in the rack need not carry out the dismouting with the help of the instrument, has both guaranteed to be unified mutually with radar system's style, does not need use tools again, has application demands such as low cost, high reliability moreover.

Description

Spare part combination for tool-free operation and cabinet for radar system

Technical Field

The invention relates to the technical field related to structural design of electronic equipment, in particular to a spare part combination for tool-free operation and a cabinet for a radar system.

Background

The spare part combination is mainly used for storing articles such as spare parts, accessories, independent units, tools and the like, plays a role in storage and protection, and is an indispensable component of the whole system. Spare part combination is different from the functional unit combination, and installation operation requires lowly, and the combination dismouting frequency is higher. The spare part composite design commonly used to the sheet metal component is major structure, and the top cap adopts the screw fastening mode of screw, nut, packing ring, and the screw subassembly installation that does not drop is used to the panel on the rack, but this kind of mode is with the help of the instrument, and operating efficiency is low to the standard component easily scatters, loses, causes the short circuit even. In addition, at present, in the existing spare part combination, a special tool such as a screwdriver is needed to unscrew the screws on the front panel, then the spare part combination is pulled open, then the screws on the top cover are unscrewed, the spare part combination can be opened to take the object, and then the screws need to be screwed back after the spare part combination is taken out, so that the operation is complex, and the spare part is easy to lose.

Disclosure of Invention

The invention aims to solve the technical problems that the existing radar system spare part combination mostly adopts screw connection, needs to be assembled and disassembled by means of tools, and is complicated in assembling and disassembling process.

The technical scheme for solving the technical problems is as follows: the utility model provides a spare part combination of no instrument ization operation, includes major structure, guide rail, top cap and supporting component, the major structure is the open box body structure in upper end, the top cap both sides are connected with the guide rail through supporting component respectively, major structure both sides wall respectively with the guide rail of top cap both sides is connected.

The invention has the beneficial effects that: the spare part combination disclosed by the invention does not need to be disassembled and assembled by means of tools, only needs to be drawn out from the top cover by means of the guide rail, can be quickly disassembled and assembled, can meet the vehicle-mounted requirement, has application requirements of low cost, high reliability and the like, does not need to be opened by means of additional tools, is simple to operate, and is not easy to lose parts.

On the basis of the technical scheme, the invention can be further improved as follows.

Furthermore, the guide rail is tertiary guide rail, the top cap both sides respectively through supporting component with the outside guide rail of tertiary guide rail is connected, major structure both sides wall respectively with the inboard guide rail of the tertiary guide rail in top cap both sides is connected.

The beneficial effect of adopting the further scheme is that: the three-stage guide rail is adopted, the inner side guide rail is fixedly connected with two side walls of the main structure, the outer side guide rail is connected with the supporting assembly, and the main mechanism can move relative to the top cover along the three-stage guide rail.

Furthermore, the supporting component comprises a supporting piece and a guide rail bracket, the guide rail is installed on the guide rail bracket, and two ends of the supporting piece are respectively connected with the guide rail bracket and the top cover.

The beneficial effect of adopting the further scheme is that: the guide rail can be connected to the guide rail bracket by using the supporting piece, the guide rail bracket can be installed in the cabinet, and then the main body structure is installed in the cabinet.

Furthermore, the supporting piece adopts a Z-shaped structure, the top of the supporting piece is connected with the top cover, and the bottom of the supporting piece is connected with the guide rail bracket.

The beneficial effect of adopting the further scheme is that: the support piece of the Z-shaped structure is adopted, the horizontal section at the upper end of the support piece is connected with the top cover, and the horizontal section at the lower end of the support piece is connected with the guide rail bracket.

Further, the major structure is including bottom plate, left side board, right side board, front panel and the rear panel that adopts sheet metal construction respectively, left side board and right side board are installed respectively the bottom plate left and right sides, the front panel is installed the bottom plate front side and respectively with left side board and right side board are connected, the rear panel is installed the bottom plate rear side and respectively with left side board and right side board are connected.

The beneficial effect of adopting the further scheme is that: the main body structure with the square structure is unified with the style of a radar system, a mounting tool is not needed, the overall structure is more humanized, and the mounting and dismounting are convenient.

Furthermore, a handle, a label clip and a straight-line-shaped quick lock are arranged on the front panel.

The beneficial effect of adopting the further scheme is that: the main structure can be drawn out of or pushed into the mounting cabinet by arranging the handle; the label clip is used for mounting a label; the straight-line-shaped quick lock can realize the locking connection with the cabinet.

The cabinet for the radar system comprises a cabinet body and the spare part combination, wherein the supporting components on two sides of the spare part combination are connected in the cabinet body respectively.

The invention has the beneficial effects that: according to the cabinet, the spare part combination in the cabinet is not required to be disassembled and assembled by means of tools, and only the guide rail is required to be drawn out from the top cover, so that the cabinet can be quickly disassembled and assembled, can meet the vehicle-mounted requirement, and has application requirements of low cost, high reliability and the like.

Further, the front side of rack body is equipped with a plurality of push-and-pull mouths, be equipped with the panel frame on the push-and-pull mouth, the panel frame is through the pine take off the screw installation on the rack body.

The beneficial effect of adopting the further scheme is that: set up the screw of taking off of pine on the panel frame, when the installation, need not dismantle the panel frame completely, just can realize the assembly.

Further, the outer surface of the panel frame is provided with a circle of limiting grooves, and when the spare part combination is pushed into the cabinet body from the push-pull opening, the periphery of the front panel is respectively abutted to the limiting grooves.

The beneficial effect of adopting the further scheme is that: the arrangement of the limiting groove provides structural support for the assembly of the front panel.

Further, this internal a plurality of installation passageways that are equipped with of rack, every the both sides top of installation passageway is equipped with the installation roof beam respectively, the supporting component of spare part combination both sides is connected respectively on the installation roof beam of installation passageway both sides.

The beneficial effect of adopting the further scheme is that: the spare part combination can be assembled on the mounting beam on the cabinet body, and the compact and systematic assembly of the spare part combination is realized.

Drawings

FIG. 1 is a perspective view of the spare part assembly of the present invention;

FIG. 2 is a schematic perspective exploded view of the spare part assembly of the present invention;

FIG. 3 is a schematic perspective view of the main body structure of the present invention;

FIG. 4 is a schematic view of the top cover and guide rail assembly of the present invention;

FIG. 5 is a schematic perspective view of a panel frame according to the present invention;

fig. 6 is a schematic perspective view of the cabinet of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a body structure; 11. a base plate; 12. a left side plate; 13. a right side plate; 14. a front panel; 15. a rear panel; 16. a handle; 17. a label clip; 18. a straight-line type quick lock;

2. a guide rail; 21. an outer guide rail; 22. an inner guide rail;

3. a top cover; 4. a support member; 5. a rail bracket;

6. a cabinet body; 61. a panel frame; 62. a limiting groove; 63. pushing and pulling the opening; 64. mounting a beam; 65. a captive screw; 66. a limiting ring;

7. and (7) packaging boxes.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

Example 1

As shown in fig. 1 to 4, the spare part assembly for tool-less operation of this embodiment includes a main body structure 1, guide rails 2, a top cover 3 and a supporting component, the main body structure 1 is a box structure with an open upper end, two sides of the top cover 3 are respectively connected with the guide rails 2 through the supporting component, and two side walls of the main body structure 1 are respectively connected with the guide rails 2 on two sides of the top cover 3.

The guide rail 2 of the present embodiment may employ a two-stage guide rail or a multi-stage guide rail.

A preferable scheme of this embodiment is that, as shown in fig. 1 to fig. 3, the guide rail 2 of this embodiment is a three-stage guide rail, two sides of the top cover 3 are respectively connected with an outer side guide rail 21 of the three-stage guide rail through a supporting component, and two side walls of the main body structure 1 are respectively connected with an inner side guide rail 22 of the three-stage guide rail at two sides of the top cover 3. The top cover can play a dustproof role. The three-stage guide rail is adopted, the inner side guide rail is fixedly connected with two side walls of the main structure, the outer side guide rail is connected with the supporting assembly, and the main mechanism can move relative to the top cover along the three-stage guide rail.

As shown in fig. 1 to fig. 3, the supporting assembly of this embodiment includes a supporting member 4 and a rail bracket 5, the rail 2 is installed on the rail bracket 5, and two ends of the supporting member 4 are respectively connected to the rail bracket 5 and the top cover 3. The support 4, the rail bracket 5 and the top cover 3 may function to support the spare part combination. The guide rail can be connected to the guide rail bracket by using the supporting piece, the guide rail bracket can be installed in the cabinet, and then the main body structure is installed in the cabinet.

The supporting member 4 of this embodiment is for connecting the top cover 3 with the guide rail bracket 5, and the supporting member 4 may adopt a straight-line structure, an S-shaped structure, or an L-shaped structure. The support 4 can be screwed into a connecting fit with the top cover 3 and the rail bracket 5.

One preferable scheme of the supporting member 4 of this embodiment is that, as shown in fig. 1 to fig. 3, the supporting member 4 of this embodiment adopts a "Z" shaped structure, the top of the supporting member 4 is connected with the top cover 3, and the bottom of the supporting member 4 is connected with the guide rail bracket 5. The support piece of the Z-shaped structure is adopted, the horizontal section at the upper end of the support piece is connected with the top cover, and the horizontal section at the lower end of the support piece is connected with the guide rail bracket.

As shown in fig. 1, 2 and 4, the supporting member 4 specifically includes an upper horizontal section, a lower horizontal section and a middle vertical section, the upper horizontal section, the lower horizontal section and the lower horizontal section are integrally connected to form a "Z" shaped structure, the upper horizontal section can be connected to the upper surface or the lower surface of the top cover 3, the lower horizontal section can be connected to the upper surface of the guide rail bracket 5, and the middle vertical section supports the space between the top cover 3 and the guide rail bracket 5 and reserves a part of an assembly space. The upper horizontal section is preferably attached to the lower surface of the top cover 3, and the top cover 3 can be supported by the support member 4. The support elements 4 can in particular be attached at the edge of the roof 3, for example when a square roof 3 is used, one support element 4 can be arranged at each of the four corners of the roof 3. The connection between the top cover 3 and the support 4 may be extended by a portion of the connection section, and the connection with the support 4 is achieved by the extended connection section.

The guide rail bracket 5 of the present embodiment is for supporting the guide rail 2 and providing a coupling support for the support member 4. The length of the guide rail bracket 5 is adapted to the length of the guide rail 2 or may be shorter than the length of the guide rail 2. The rail brackets 5 may have a long plate-like structure or a square tubular structure.

In a preferred embodiment of the guide rail bracket 5 of the present invention, as shown in fig. 4, the guide rail bracket 5 is a side U-shaped structure, and a plurality of lightening holes are opened on the guide rail bracket 5 to reduce the weight of the entire guide rail bracket 5. The open side of the U-shaped guide rail bracket 5 is arranged towards the outside of the main body structure 1, and the closed side of the U-shaped guide rail bracket 5 is used for assembling the guide rail 2. Two free ends of 5 opening one sides of rail brackets of U type structure extend respectively and have the installation limit, and this installation limit can extend to U type structure in, also can extend to U type structure is outer, can utilize this installation limit to realize with the installation of rack body 6. The lower horizontal section of the support 4 can be mounted on the side wall of the U-shaped structure lying on the side. The guide rail bracket 5 adopting the U-shaped structure can provide stable and effective support for the supporting piece 4 and the guide rail 2 on the one hand, and can effectively reduce the weight on the other hand.

As shown in fig. 1 to fig. 3, the main structure 1 of the present embodiment includes a bottom plate 11, a left side plate 12, a right side plate 13, a front panel 14 and a rear panel 15, which are of a sheet metal structure, wherein the left side plate 12 and the right side plate 13 are respectively installed on the left and right sides of the bottom plate 11, the front panel 14 is installed on the front side of the bottom plate 11 and respectively connected to the left side plate 12 and the right side plate 13, and the rear panel 15 is installed on the rear side of the bottom plate 11 and respectively connected to the left side plate 12 and the right side plate 13. The peripheral edge of the front panel 14 exceeds the left side plate 12, the right side plate 13 and a part of the bottom plate 11 so as to be matched with the corresponding structure on the cabinet body 6. The main structure with the square structure is used for storing spare parts, is unified with the radar system style, does not need an installation tool, has a more humanized integral structure and is convenient to assemble and disassemble.

As shown in fig. 1, 2 and 4, the front panel 14 of the present embodiment is provided with a handle 16, a sign clip 17 and a linear quick lock 18. The handle can be a U-shaped handle, and the main body structure can be drawn out of or pushed into the mounting cabinet by arranging the handle; a sign holder 17 may be provided near the middle of the front panel 14 for mounting a sign; a straight quick lock 18 is arranged at the position of the front panel 14 near the upper end, and the straight quick lock can realize locking connection with the cabinet. A line quick lock 18 may be provided near the upper end of the front panel 14, a handle 16 may be provided near the lower end of the front panel 14, and a sign clamp 17 may be provided between the line quick lock 18 and the handle 16.

The roof 3, the support 4, the rail brackets 5, the rear panel 15, the left side panel 12, the right side panel 13, the front panel 14, the sign clips 17, etc. of the present embodiment are in the form of typical sheet metal structures. The material can be 15 times of EVA material.

The spare part combination of this embodiment, during the use, opens the quick lock of a style of calligraphy, and the major structure is taken out to the pulling handle, and after the access spare part, promote the guide rail and resume original position, locking can accomplish the operation, need not carry out the dismouting with the help of the instrument, only need with the help of the guide rail from the top cap take out can, can realize quick assembly disassembly, can satisfy on-vehicle demand, have application demands such as low cost, high reliability moreover.

Example 2

As shown in fig. 6, the cabinet for a radar system of this embodiment includes a cabinet body 6 and the spare part assembly, where the support components on two sides of the spare part assembly are respectively connected in the cabinet body 6.

As shown in fig. 6, a plurality of push-pull openings 63 are provided on the front side of the cabinet body 6 of the present embodiment, a panel frame 61 is provided on the push-pull openings 63, and the panel frame 61 is installed on the cabinet body 6 through release screws 65. Specifically, the outer edges can be arranged on two sides of the panel frame 61 respectively, one or more loose and non-loose screws are arranged on the outer edges of the two sides respectively, the loose and non-loose screws are arranged on the panel frame, and the panel frame does not need to be completely disassembled during installation, so that the assembly can be realized.

As shown in fig. 4 and 5, a circle of limiting grooves 62 are formed in an outer surface of the panel frame 61 of the present embodiment, and when the spare part assembly is pushed into the cabinet body 6 from the push-pull opening 63, peripheries of the front panel 14 are respectively abutted to the limiting grooves 62. The arrangement of the limiting groove provides structural support for the assembly of the front panel. Due to the arrangement of the panel frame 61, the whole spare part combination can be kept consistent with the cabinet style.

As shown in fig. 4 and 5, the panel frame 61 of the present embodiment may adopt a 19-inch 6U standard mounting interface (width × height: 482.6mm × 265.9mm), and loose screws may be assembled on the panel frame 61 to realize the assembly of the panel frame 61 and the cabinet body 6. The thickness of the panel is consistent with that of the system integration equipment, and the panel frame and the front panel material are subjected to surface oxidation treatment and surface coating by using aluminum alloy.

As shown in fig. 4, the panel frame 61 of this embodiment is provided with a circle of limiting grooves 62 on the outer surface, and a circle of limiting rings on the inner side surface of the panel frame 61 near the push-pull opening, and the panel frame 61 can be assembled in the assembly hole on the cabinet body 6 by using the limiting rings.

As shown in fig. 6, a plurality of installation channels are provided in the cabinet body 6 of this embodiment, installation beams 64 are respectively provided above two sides of each installation channel, and the support assemblies on two sides of the spare part assembly are respectively connected to the installation beams 64 on two sides of the installation channels. The spare part combination can be assembled on the mounting beam on the cabinet body, and the compact and systematic assembly of the spare part combination is realized.

In the spare part combination of this embodiment, the top cover 3, the supporting member 4, the guide rail bracket 5 and the guide rail 2 are screwed and then assembled to the inner side of the cabinet body 6 through screws, and the linear quick lock 18 is installed on the front panel 14 and corresponds to a hole position on the cabinet body 6. The rear panel 15, the bottom panel 11, the right side panel 13, the left side panel 12, the label holder 17 and the front panel 14 are assembled by screws and then screwed on the inner side guide rail 22 of the guide rail 2, and the packing box 7 is placed in the main structure 1 with a certain amount of movement but cannot be removed. The release screws 65 are riveted to the faceplate frame 61 and thereby mounted to the cabinet body 6 (which may be 19 inches, 13 inches, 21 inches, etc. in size). Panel frame 61 can be spacing around the spare part combination, and major structure 1 can slide through tertiary guide rail, and panel frame 61 and top cap 3 assemble on rack body 6 and do not move along with major structure 1.

The cabinet body 6 of the embodiment can adopt a cabinet with any shape or structure, and is specifically based on the assembly requirement of the radar system. One alternative of this embodiment is that, as shown in fig. 6, the cabinet body 6 is a vertical cabinet, and includes four vertical assembly beams, a plurality of panel frames 61 are disposed between two vertical assembly beams located at the front side, an installation beam 64 may be disposed above a position corresponding to the panel frame 61 inside the cabinet body 6, the installation beam 64 may be a plate-shaped structure, a hollow cylindrical structure, or a vertical beam, or an assembly panel may be directly disposed between the vertical assembly beams of the cabinet body, and the rail bracket 5 may be mounted on the installation beam 64.

In a preferred embodiment of the mounting beam 64 of this embodiment, as shown in fig. 6, the mounting beam 64 is a plate-shaped structure, two ends of the mounting beam 64 respectively extend outward and vertically to form a part of a transition structure, the transition structure further extends to two ends along the length direction to form a part of a mounting structure, and two ends of the mounting beam 64 are respectively fixed on the inner side surface of the cabinet body 6 by using the mounting structure.

A plurality of spare part combinations can be arranged in the cabinet body 6 of the embodiment, and the spare part combinations can be arranged along the vertical direction or the horizontal direction.

The rack of this embodiment, spare part combination in it need not carry out the dismouting with the help of the instrument, only need with the help of the guide rail take out from the top cap can, can realize quick assembly disassembly, can satisfy on-vehicle demand, both guaranteed to be unified mutually with radar system's style, do not need the use of tools again, have application demands such as low cost, high reliability moreover.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A spare part combination without tool operation is characterized by comprising a main body structure, guide rails, a top cover and a supporting assembly, wherein the main body structure is a box body structure with an open upper end, the two sides of the top cover are respectively connected with the guide rails through the supporting assembly, and the two side walls of the main body structure are respectively connected with the guide rails on the two sides of the top cover; the supporting assembly comprises a supporting piece and a guide rail bracket, the guide rail is installed on the guide rail bracket, and two ends of the supporting piece are respectively connected with the guide rail bracket and the top cover;

the guide rail bracket adopts a laterally-arranged U-shaped structure, and a plurality of lightening holes are formed in the guide rail bracket to lighten the weight of the whole guide rail bracket; the opening side of the guide rail support of the U-shaped structure faces the outer side of the main body structure, the closed side of the guide rail support of the U-shaped structure is used for assembling a guide rail, and two free ends of the opening side of the guide rail support of the U-shaped structure are respectively extended with a mounting edge.

2. The kit of claim 1, wherein the guide rail is a tertiary guide rail, the top cover is connected at two sides thereof to the outer guide rail of the tertiary guide rail through the support members, and the main structure is connected at two side walls thereof to the inner guide rail of the tertiary guide rail at two sides of the top cover.

3. A kit of parts for a tool-less operation as claimed in claim 1, wherein the support member is in a zigzag configuration, the top of the support member is connected to the top cover, and the bottom of the support member is connected to the rail bracket.

4. The spare part combination of no instrument ization operation of claim 1, characterized in that, the major structure includes bottom plate, left side board, right side board, front panel and the rear panel that adopts sheet metal construction respectively, left side board and right side board are installed respectively the bottom plate left and right sides, the front panel is installed the bottom plate front side and respectively with left side board and right side board are connected, the rear panel is installed the bottom plate rear side and respectively with left side board and right side board are connected.

5. A kit of parts for tool-less operation as claimed in claim 4, wherein the front panel is provided with a handle, a sign clip and a quick-lock in-line.

6. A cabinet for a radar system, comprising a cabinet body and the spare part assembly of any one of claims 1 to 5, wherein the support components on both sides of the spare part assembly are respectively connected in the cabinet body.

7. The cabinet for the radar system as recited in claim 6, wherein a plurality of push-pull openings are formed on the front side of the cabinet body, and panel frames are disposed on the push-pull openings and installed on the cabinet body through non-detachable screws.

8. The cabinet of claim 7, wherein the panel frame has a limiting groove formed on an outer surface thereof, and when the spare part assembly is pushed into the cabinet body from the push-pull opening, the periphery of the front panel of the main structure abuts against the limiting groove.

9. The cabinet for the radar system as claimed in claim 6, wherein a plurality of installation channels are provided in the cabinet body, installation beams are respectively provided above two sides of each installation channel, and the support assemblies at two sides of the spare part assembly are respectively connected to the installation beams at two sides of the installation channel.