CN111099134A

CN111099134A - Fixing device for computer accessories and fixing method thereof

Info

Publication number: CN111099134A
Application number: CN201911247284.3A
Authority: CN
Inventors: 铁治欣
Original assignee: Keyi College of ZSTU
Current assignee: Yan'an Creative Yuan Xin Industry And Trade Co ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-05-05
Anticipated expiration: 2039-12-09
Also published as: CN111099134B

Abstract

The invention discloses a fixing device for computer accessories, comprising a bottom support mechanism and a top cover distributed just above the bottom support mechanism, and accessory installation units are evenly distributed along the vertical direction between the bottom support mechanism and the top cover. Through scientific and reasonable structural design, the invention can be adapted according to the size of different computer accessories, so that various accessories can be quickly stored and fixed in a unified manner. The first clamping limit spring and the second clamping limit spring Under the action of the bottom support mechanism, a good buffer balance protection can be formed in the horizontal reverse direction. Through the inner compression spring and outer compression spring of the bottom support mechanism combined with the synchronous connection plate, a stable and reliable bottom buffer support is formed, so that the computer accessories can be installed and fixed. Safe and reliable protection can be obtained in the process, the whole device is simple in structure, convenient in operation, and has good practical and popularization value.

Description

Fixing device for computer accessories and fixing method thereof

Technical Field

The invention belongs to the field of computers, and particularly relates to a fixing device for computer accessories and a fixing method thereof.

Background

Computers have become an irreplaceable part of people's lives as a modern device. Computer accessories are also indispensable as computer accessories. Because the internal structure of the computer fitting is precise, the computer fitting is often damaged by certain collision in the transportation and fixing process, and certain influence is caused on the service function and the service life of the computer fitting.

Disclosure of Invention

The invention aims to overcome the problems in the prior art and provides a fixing device for a computer accessory and a fixing method thereof.

In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:

a fixing device for computer accessories comprises a bottom supporting mechanism and a top cover distributed right above the bottom supporting mechanism, wherein accessory mounting units are uniformly distributed between the bottom supporting mechanism and the top cover along the vertical direction;

the accessory mounting unit comprises a mounting box body and sliding limiting rods symmetrically mounted on the left side and the right side inside the mounting box body, first clamping limiting springs are symmetrically mounted at two ends of the periphery of each sliding limiting rod, a limiting base plate is mounted between the front first clamping limiting spring and the rear first clamping limiting spring, partition mounting mechanisms are sequentially and evenly distributed on the rear side of each limiting base plate, limiting seats are symmetrically mounted on two end faces of each sliding limiting rod, and limiting clamping pieces are symmetrically mounted on the front side and the rear side of the mounting box body;

the top surface of the installation box body is provided with a rectangular clamping groove, the front side and the rear side of the rectangular clamping groove are symmetrically provided with a first positioning clamping groove, the bottom surface of the installation box body is provided with a first rectangular bulge matched with the rectangular clamping groove, the front side and the rear side of the first rectangular bulge are symmetrically provided with a second positioning clamping groove corresponding to the first positioning clamping groove, and the front side and the rear side of the installation box body are symmetrically provided with limiting rod installation holes for installing sliding limiting rods; the limiting clamping piece comprises a first limiting clamping plate, and a positioning lug matched with the first positioning clamping groove is arranged in the middle of the first limiting clamping plate;

the partition plate mounting mechanism comprises a sliding partition plate and partition plate clamping seats symmetrically mounted on the left side and the right side of the sliding partition plate, the top ends of the partition plate clamping seats are connected with second clamping limiting springs, and spacing supports are uniformly distributed between the two second clamping limiting springs;

the top cover comprises a sealing top plate, a second rectangular bulge matched with the rectangular clamping groove is arranged at the bottom of the sealing top plate, and third positioning clamping grooves corresponding to the first positioning clamping grooves are symmetrically arranged on the front side and the rear side of the second rectangular bulge;

bottom sprag mechanism includes bottom sprag board and equipartition at bottom sprag board four parts supporting connection seat all around, links to each other through synchronous connecting plate between four supporting connection seats, and synchronous connecting plate surface installs external compression spring all around, and spacing snap ring is installed to supporting connection seat bottom, installs the movable supporting seat in the middle of the spacing snap ring, and the movable supporting seat top is connected with interior compression spring.

Furthermore, first sliding limiting holes matched with the sliding limiting rods are symmetrically formed in the left end and the right end of the limiting base plate, and limiting connection screw holes are symmetrically formed in two end faces of each sliding limiting rod; the limiting base comprises a limiting end block, and a limiting connecting stud matched with the limiting connecting screw hole is arranged in the middle of the limiting end block; spacing base plate links to each other with the contact of the spacing spring one end of first centre gripping, and the installation box body inner wall links to each other with the contact of the spacing spring other end of first centre gripping.

Furthermore, a linear sliding groove is formed in the top end of the sliding partition plate, limiting slots are symmetrically formed in the left end and the right end of the sliding partition plate, and a second sliding limiting hole matched with the sliding limiting rod is formed in the middle of each limiting slot; the partition board clamping seat comprises a limiting insertion block matched with the limiting insertion groove, a sliding limiting through hole matched with the second sliding limiting hole is formed in the middle of the limiting insertion block, and a second limiting clamping plate is arranged at the outer end of the limiting insertion block; the spacing support comprises a spacing vertical plate and a sliding connecting strip horizontally arranged at the top end of the spacing vertical plate, the bottom of the sliding connecting strip is provided with a sliding connecting bulge matched with the linear sliding groove, and the bottom end of the spacing vertical plate is horizontally provided with a sliding supporting bottom plate; two ends of the second clamping limiting spring are respectively connected with the second limiting clamping plate and the sliding connection protrusion in a contact manner.

Furthermore, four fixing screw holes are uniformly distributed on the periphery of the bottom supporting mechanism, and elastic clamping protrusions matched with the second positioning clamping grooves are symmetrically arranged on the front side and the rear side of the bottom supporting mechanism; the supporting connecting seat comprises a supporting connecting top plate, a fixing stud matched with the fixing screw hole is arranged at the top end of the supporting connecting top plate, a sliding connecting cylinder is arranged at the bottom end of the supporting connecting top plate, two lifting clamping grooves are symmetrically arranged on the periphery of the sliding connecting cylinder, and the bottom end of the sliding connecting cylinder is in threaded connection with the limiting clamping ring; the synchronous connecting plate comprises a central plate and four synchronous connecting strips uniformly distributed on the peripheral side of the central plate, and the tail ends of the synchronous connecting strips are provided with sliding connecting holes matched with the sliding connecting cylinders; the movable supporting seat comprises a sliding connecting block matched with the sliding connecting cylinder, a supporting upright post matched with the limiting snap ring is arranged at the bottom end of the sliding connecting block, a rolling ball is arranged at the bottom end of the supporting upright post, and lifting limiting bulges matched with the lifting clamping grooves are symmetrically arranged on the periphery of the sliding connecting block; the bottom surface of the synchronous connecting strip is contacted with the lifting limiting protrusion, and the top surface of the synchronous connecting strip is contacted with the outer compression spring.

The invention also provides a fixing method of the fixing device for the computer accessory, which comprises the following steps:

the method comprises the following steps: firstly, the assembly of the bottom support mechanism is completed: the four supporting connecting seats are matched with the bottom supporting plate, then the outer compression spring, the synchronous connecting plate and the movable supporting seat are sequentially installed, and finally the bottom end of the sliding connecting cylinder is fixedly connected with the limiting clamp ring;

step two: then, assembling the accessory installation units, adjusting the distance between the adjacent partition installation mechanisms to enable the sliding partition to be in contact connection with the front side and the rear side of the computer accessory, adjusting the distance between the adjacent spacing supports to enable the spacing vertical plates to be in contact connection with the left side and the right side of the computer accessory, enabling the sliding support bottom plate to be in contact connection with the bottom of the computer accessory, and taking all the computer accessories in the accessory installation units as assembly unit bodies to be installed in the next step after installation and placement of the computer accessories are completed;

step three: then the elastic clamping protrusion is clamped with a second positioning clamping groove of the first assembling unit body, then the assembling unit bodies are sequentially installed along the vertical direction, and the adjacent assembling unit bodies are fixed and limited through a limiting clamping piece;

step four: and finally, the top cover is arranged above the topmost assembly unit body, and is fixed and limited through a limiting clamping piece.

The invention has the beneficial effects that:

the invention can carry out adaptive adjustment according to the sizes of different computer accessories through scientific and reasonable structural design, thereby rapidly carrying out unified storage and fixed installation on various accessories, forming good buffer balance protection in horizontal and reverse directions under the action of the first clamping limiting spring and the second clamping limiting spring, forming stable and reliable bottom buffer support through the inner compression spring and the outer compression spring of the bottom supporting mechanism and combining with the synchronous connecting plate, thereby ensuring that the computer accessories can be safely and reliably protected in the installation and fixation process.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a portion of the present invention;

FIG. 3 is an exploded view of a portion of the structure of the present invention;

FIG. 4 is an exploded view of a portion of the structure of the present invention;

FIG. 5 is a schematic view of a portion of the present invention;

FIG. 6 is an exploded view of a portion of the structure of the present invention;

FIG. 7 is a partial schematic view of the present invention;

FIG. 8 is a schematic view of a portion of the present invention;

fig. 9 is an exploded view of a partial structure of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

As shown in fig. 1, the fixing device for computer accessories comprises a bottom support mechanism 1 and a top cover 3 distributed over the bottom support mechanism 1, wherein accessory mounting units 2 are uniformly distributed between the bottom support mechanism 1 and the top cover 3 along the vertical direction;

as shown in fig. 2, the accessory mounting unit 2 includes a mounting box body 21 and sliding limiting rods 22 symmetrically mounted on the left and right sides inside the mounting box body 21, first clamping limiting springs 23 are symmetrically mounted at two ends of the periphery of the sliding limiting rod 22, a limiting base plate 25 is mounted between the front and rear first clamping limiting springs 23, partition mounting mechanisms 24 are sequentially and uniformly distributed on the rear side of the limiting base plate 25, limiting seats 26 are symmetrically mounted on two end surfaces of the sliding limiting rod 22, and limiting clamping pieces 27 are symmetrically mounted on the front and rear sides of the mounting box body 21;

as shown in fig. 3, a rectangular slot 211 is formed in the top surface of the installation box body 21, first positioning slots 212 are symmetrically formed in the front and rear sides of the rectangular slot 211, a first rectangular protrusion 214 matched with the rectangular slot 211 is formed in the bottom surface of the installation box body 21, second positioning slots 215 corresponding to the first positioning slots 212 are symmetrically formed in the front and rear sides of the first rectangular protrusion 214, and limiting rod installation holes 213 for installing the sliding limiting rod 22 are symmetrically formed in the front and rear sides of the installation box body 21; the limiting clamping piece 27 comprises a first limiting clamping plate 271, and a positioning bump 272 matched with the first positioning clamping groove 212 is arranged in the middle of the first limiting clamping plate 271;

as shown in fig. 4, the left and right ends of the limiting substrate 25 are symmetrically provided with first sliding limiting holes 251 matched with the sliding limiting rods 22, and two end faces of the sliding limiting rods 22 are symmetrically provided with limiting connection screw holes 221; the limiting seat 26 comprises a limiting end block 261, and a limiting connection stud 262 matched with the limiting connection screw hole 221 is arranged in the middle of the limiting end block 261; the limiting base plate 25 is in contact connection with one end of the first clamping limiting spring 23, and the inner wall of the mounting box body 21 is in contact connection with the other end of the first clamping limiting spring 23;

as shown in fig. 5, the partition mounting mechanism 24 includes a sliding partition 241 and partition clamping seats 242 symmetrically mounted on the left and right sides of the sliding partition 241, the top end of the partition clamping seat 242 is connected with second clamping limit springs 243, and spacing supports 244 are uniformly distributed between the two second clamping limit springs 243;

as shown in fig. 6, a linear sliding groove 2411 is formed at the top end of the sliding partition 241, limiting slots 2412 are symmetrically formed at the left end and the right end of the sliding partition 241, and a second sliding limiting hole 2413 matched with the sliding limiting rod 22 is formed in the middle of each limiting slot 2412; the partition board clamping seat 242 comprises a limiting insertion block 2422 matched with the limiting slot 2412, a sliding limiting perforation 2423 matched with the second sliding limiting hole 2413 is arranged in the middle of the limiting insertion block 2422, and a second limiting clamping board 2421 is arranged at the outer end of the limiting insertion block 2422; the spacing support 244 comprises spacing vertical plates 2441 and a sliding connecting strip 2442 horizontally arranged at the top ends of the spacing vertical plates 2441, the bottom of the sliding connecting strip 2442 is provided with a sliding connecting bulge 2443 matched with the linear sliding groove 2411, and the bottom end of the spacing vertical plate 2441 is horizontally provided with a sliding supporting bottom plate 2444; two ends of the second clamping limit spring 243 are respectively connected with the second limit clamping plate 2421 and the sliding connection bulge 2443 in a contact manner;

as shown in fig. 7, the top cover 3 includes a top sealing plate 31, a second rectangular protrusion 32 matching with the rectangular slot 211 is disposed at the bottom of the top sealing plate 31, and third positioning slots 33 corresponding to the first positioning slots 212 are symmetrically disposed at the front and rear sides of the second rectangular protrusion 32;

as shown in fig. 8, the bottom support mechanism 1 includes a bottom support plate 11 and support connection seats 12 uniformly distributed around four portions of the bottom support plate 11, the four support connection seats 12 are connected through a synchronous connection plate 13, outer compression springs 14 are installed around the surface of the synchronous connection plate 13, a limit snap ring 15 is installed at the bottom end of each support connection seat 12, a movable support seat 16 is installed in the middle of each limit snap ring 15, and an inner compression spring 17 is connected to the top end of each movable support seat 16;

as shown in fig. 9, four fixing screw holes 111 are uniformly distributed around the bottom support mechanism 1, and elastic clamping protrusions 112 matched with the second positioning clamping grooves 215 are symmetrically arranged on the front side and the rear side of the bottom support mechanism 1; the supporting and connecting base 12 comprises a supporting and connecting top plate 121, a fixing stud 122 matched with the fixing screw hole 111 is arranged at the top end of the supporting and connecting top plate 121, a sliding connecting cylinder 123 is arranged at the bottom end of the supporting and connecting top plate 121, two lifting clamping grooves 124 are symmetrically arranged on the periphery of the sliding connecting cylinder 123, and the bottom end of the sliding connecting cylinder 123 is in threaded connection with the limiting clamping ring 15; the synchronous connecting plate 13 comprises a central plate 131 and four synchronous connecting bars 132 uniformly distributed on the periphery of the central plate 131, and the tail ends of the synchronous connecting bars 132 are provided with sliding connecting holes 133 matched with the sliding connecting cylinders 123; the movable support base 16 comprises a sliding connection block 162 matched with the sliding connection cylinder 123, a support upright post 161 matched with the limit clamp ring 15 is arranged at the bottom end of the sliding connection block 162, a rolling ball 163 is arranged at the bottom end of the support upright post 161, and lifting limit protrusions 164 matched with the lifting clamp grooves 124 are symmetrically arranged on the periphery of the sliding connection block 162; the bottom surface of the synchronization link 132 is in contact with the elevation restricting protrusion 164, and the top surface of the synchronization link 132 is in contact with the outer compression spring 14.

the method comprises the following steps: the assembly of the bottom support 1 is completed first: the four supporting and connecting seats 12 are matched with the bottom supporting plate 11, then the outer compression spring 14, the synchronous connecting plate 13 and the movable supporting seat 16 are sequentially arranged, and finally the bottom end of the sliding connecting cylinder 123 is fixedly connected with the limiting clamp ring 15;

step two: then, the accessory mounting unit 2 is assembled, the distance between the adjacent partition mounting mechanisms 24 is adjusted, the sliding partition 241 is in contact connection with the front side and the rear side of the computer accessory, the distance between the adjacent spacing supports 244 is adjusted, the spacing vertical plates 2441 are in contact connection with the left side and the right side of the computer accessory, the sliding support bottom plate 2444 is in contact connection with the bottom of the computer accessory, and when all the computer accessories in the accessory mounting unit 2 are mounted and placed, the mounting unit is used as an assembling unit body for the next step of mounting;

step three: then the elastic clamping protrusion 112 is clamped with the second positioning clamping groove 215 of the first assembling unit body, then the assembling unit bodies are sequentially installed along the vertical direction, and the adjacent two assembling unit bodies are fixed and limited through the limiting clamping piece 27;

step four: finally, the top cover 3 is arranged above the topmost assembly unit body and is fixed and limited through a limiting clamping piece 27.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to 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 do not necessarily 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.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims

1. A fixing device for computer accessories, characterized in that: comprising a bottom support mechanism (1) and a top cover (3) distributed directly above the bottom support mechanism (1), the bottom support mechanism (1) and the top cover (3) ) are evenly distributed along the vertical direction with accessory installation units (2);

The accessory installation unit (2) comprises an installation box (21) and sliding limit rods (22) symmetrically installed on the left and right sides of the inside of the installation box (21), and the two ends of the sliding limit rod (22) are symmetrical on the circumference side A first clamping limit spring (23) is installed, a limit base plate (25) is installed between the two front and rear first clamp limit springs (23), and the rear side of the limit base plate (25) is uniformly distributed with baffles The installation mechanism (24), the two ends of the sliding limit rod (22) are symmetrically installed with the limit seats (26), and the front and rear sides of the installation box body (21) are symmetrically installed with the limit clips (27);

The top surface of the installation box body (21) is provided with a rectangular clamping slot (211), the front and rear sides of the rectangular clamping slot (211) are symmetrically provided with first positioning clamping slots (212), and the bottom surface of the installation box body (21) is provided with a A first rectangular protrusion (214) matched with the rectangular card slot (211), the first rectangular protrusion (214) is symmetrically provided with a second positioning card groove ( 215), the front and rear sides of the installation box (21) are symmetrically provided with limit rod mounting holes (213) for installing the sliding limit rod (22); the limit clip (27) includes a first limit clip (271) , a positioning bump (272) matched with the first positioning slot (212) is arranged in the middle of the first limit card plate (271);

The partition installation mechanism (24) includes a sliding partition (241) and partition holders (242) symmetrically installed on the left and right sides of the sliding partition (241), and a second partition is connected to the top of the partition holder (242). clamping limit springs (243), and spaced supports (244) are evenly distributed between the two second clamping limit springs (243);

The top cover (3) includes a sealed top plate (31), the bottom of the sealed top plate (31) is provided with a second rectangular protrusion (32) matched with the rectangular clamping groove (211), and the front and rear of the second rectangular protrusion (32) A third positioning slot (33) corresponding to the first positioning slot (212) is symmetrically arranged on both sides;

The bottom support mechanism (1) comprises a bottom support plate (11) and a support connection seat (12) evenly distributed around the four parts of the bottom support plate (11), the four support connection seats (12) are connected by a synchronous connection plate (12). 13) Connected, the synchronous connection plate (13) is equipped with an outer compression spring (14) around the surface, a limit snap ring (15) is installed at the bottom end of the support connection seat (12), and a movable support is installed in the middle of the limit snap ring (15). A seat (16), the top end of the moving support seat (16) is connected with an inner compression spring (17).

2 . The fixing device for computer accessories according to claim 1 , wherein the left and right ends of the limit base plate ( 25 ) are symmetrically provided with a first sliding limit matched with the sliding limit rod ( 22 ). 3 . The position hole (251), the two ends of the sliding limit rod (22) are symmetrically provided with limit connection screw holes (221); the limit seat (26) includes a limit end block (261), and the limit end block (261) is provided in the middle There is a limit connection stud (262) matched with the limit connection screw hole (221); the limit base plate (25) is in contact with one end of the first clamping limit spring (23), and the inner wall of the box body (21) is installed It is connected with the other end of the first clamping limit spring (23).

3. A fixing device for computer accessories according to claim 1, characterized in that: the top of the sliding partition (241) is provided with a linear chute (2411), and the left and right ends of the sliding partition (241) A limit slot (2412) is symmetrically arranged, and a second sliding limit hole (2413) matched with the sliding limit rod (22) is arranged in the middle of the limit slot (2412); A limit insert block (2422) matched with the limit slot (2412), a slide limit hole (2423) matched with the second slide limit hole (2413) is provided in the middle of the limit insert block (2422), The outer end of the limit insert block (2422) is provided with a second limit card (2421); the spacer support (244) includes a spacer vertical plate (2441) and a sliding connecting bar (2441) horizontally arranged on the top of the spacer vertical plate (2441). 2442), the bottom of the sliding connecting bar (2442) is provided with a sliding connecting protrusion (2443) matched with the linear chute (2411), and the bottom end of the interval vertical plate (2441) is horizontally provided with a sliding supporting bottom plate (2444); the second The two ends of the clamping limit spring (243) are respectively contacted and connected with the second limit card plate (2421) and the sliding connection protrusion (2443).

4. A fixing device for computer accessories according to claim 1, characterized in that: the bottom support mechanism (1) has four fixing screw holes (111) evenly distributed around it, and the bottom support mechanism (1) The front and rear sides are symmetrically provided with elastic clamping projections (112) matched with the second positioning clamping grooves (215); The fixing stud (122) matched with the fixing screw hole (111), the bottom end of the supporting and connecting top plate (121) is provided with a sliding connecting cylinder (123), and the peripheral side of the sliding connecting cylinder (123) is symmetrically provided with two lifting slots (124), the bottom end of the sliding connection cylinder (123) is threadedly connected with the limit snap ring (15); the synchronous connection plate (13) includes a central plate (131) and four synchronous The connecting bar (132), the end of the synchronous connecting bar (132) is provided with a sliding connecting hole (133) matched with the sliding connecting cylinder (123); The connecting block (162), the bottom end of the sliding connecting block (162) is provided with a supporting column (161) matched with the limit snap ring (15), the bottom end of the supporting column (161) is provided with a rolling ball (163), and the sliding connection The peripheral side of the block (162) is symmetrically provided with lifting limit protrusions (164) matched with the lifting card grooves (124); (132) The top surface is in contact with the outer compression spring (14).

5. A fixing method of a fixing device for computer accessories, characterized in that: the fixing method comprises the following steps:

Step 1: First complete the assembly of the bottom support mechanism (1): first install the four support connection seats (12) with the bottom support plate (11), and then install the outer compression spring (14) and the synchronization connection plate (13) in sequence ), move the support base (16), and finally connect the bottom end of the sliding connection cylinder (123) to the limit snap ring (15);

Step 2: Then complete the assembly of the accessory installation unit (2), adjust the distance between the adjacent partition mounting mechanisms (24), so that the sliding partition (241) is in contact with the front and rear sides of the computer accessories, and adjust the adjacent spacer support (24). 244), so that the spacer risers (2441) are in contact with the left and right sides of the computer accessories, and the sliding support bottom plate (2444) is in contact with the bottom of the computer accessories. When all the computer accessories in the accessory installation unit (2) are installed and placed Then it is used as an assembly unit for the next step of installation;

Step 3: Then snap the elastic snap projection (112) to the second positioning slot (215) of the first assembling unit body, and then install the assembling unit bodies in sequence along the vertical direction, with two adjacent assembling units. The assembling units are fixed and limited by the limit clips (27);

Step 4: Finally, the top cover (3) is installed above the topmost assembly unit body, and fixed and limited by the limit clips (27).