CN113110711B

CN113110711B - Computer case convenient for installing mainboard for hardware development

Info

Publication number: CN113110711B
Application number: CN202110373957.0A
Authority: CN
Inventors: 马海凤
Original assignee: Qinhuangdao Vocational and Technical College
Current assignee: Qinhuangdao Vocational and Technical College
Priority date: 2021-04-07
Filing date: 2021-04-07
Publication date: 2022-03-29
Anticipated expiration: 2041-04-07
Also published as: CN113110711A

Abstract

A computer case for hardware development and convenient for installing a mainboard comprises a case body; a clamping mechanism is fixed at the left end of the box body and comprises a fixed shell, a movable rotating shaft, a clamping block, a poke rod, a fastening bolt and a spring; the bottom of the cavity of the fixed shell is provided with a slide rail, and the clamping block is arranged in the cavity of the fixed shell in a sliding manner; a spring is arranged between the left end of the clamping block and the fixed shell; the top of the fixed shell is provided with a movable rotating shaft, wherein the right side of the movable rotating shaft is provided with a connecting block, and the end part of the connecting block is fixed with a poke rod; an arc-shaped through groove is formed in the top of the fixed shell. According to the invention, the two clamping mechanisms are arranged on the left side of the main board body, the locking clamping block is arranged on the right side of the main board body, and the left end and the right end of the main board body are clamped and fixed through the first clamping groove on the clamping block and the second clamping groove on the locking clamping block, so that the computer main board can be quickly installed and fixed, and the computer main board clamping device is simple and convenient to operate and convenient to use.

Description

Computer case convenient for installing mainboard for hardware development

Technical Field

The invention relates to the technical field of computer equipment, in particular to a computer case which is used for hardware development and is convenient for installing a mainboard.

Background

The motherboard, also called a motherboard, is installed in a computer main chassis, is one of the most basic and important components of a computer, and plays a role in the whole computer system. The mainboard is provided with a plurality of precise elements, which brings certain inconvenience for installing or disassembling the mainboard, and the mainboard can be damaged by carelessness. Traditional mainboard fixed knot constructs sets up the carrier plate in the quick-witted case, is equipped with the convex body on the carrier plate, and the screw has been seted up to the central point at convex body top, corresponds the screw on the mainboard and sets up the fixed orifices, places the mainboard back on the carrier plate, passes screw, fixed orifices with the screw and fixes the mainboard at quick-witted incasement, wastes time and energy during the installation, has brought a great deal of inconvenience for the user.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention aims to provide a computer case which is used for hardware development and is convenient for installing a mainboard, and the computer case can effectively solve the problems that the existing computer mainboard fixing structure can be installed or disassembled by an auxiliary tool and is inconvenient to maintain.

In order to achieve the purpose, the invention provides the following technical scheme:

a computer case for hardware development and convenient for installing a mainboard comprises a case body; a clamping mechanism is fixed at the left end of the box body, a first positioning barrel is fixed at the right end of the box body, and the clamping mechanism and the first positioning barrel are arranged oppositely; the clamping mechanism comprises a fixed shell, a movable rotating shaft, a clamping block, a poking rod, a fastening bolt and a spring, wherein the fixed shell is of a rectangular cavity structure, the right end of the fixed shell is provided with an opening, and the left end of the fixed shell is fixedly connected with the box body; the bottom of the cavity of the fixed shell is provided with a slide rail, and the clamping block is arranged in the cavity of the fixed shell in a sliding manner; a groove is formed in the top of the clamping block, a first clamping groove is formed in the right end of the clamping block, and a spring is arranged between the left end of the clamping block and the fixed shell; the top of the fixed shell is provided with a movable rotating shaft, wherein the right side of the movable rotating shaft is provided with a connecting block, and the end part of the connecting block is fixed with a poke rod; the top of the fixed shell is provided with an arc-shaped through groove, and the poke rod penetrates through the arc-shaped through groove and is inserted into the groove in the top of the clamping block; a first spring is arranged in the inner cavity of the first positioning cylinder, wherein the right end of the first spring is fixedly connected with the inner wall of the first positioning cylinder, and the left end of the first spring is fixedly connected with a first movable rod; the left end of the first movable rod extends leftwards to form a first positioning cylinder and is fixedly connected with a locking clamping block, and the left end of the locking clamping block is provided with a second clamping groove; a main board body is arranged between the first clamping groove and the second clamping groove, and a second positioning cylinder is arranged below the main board body; the bottom end of the second positioning cylinder is fixedly connected with the bottom of the box body, and a second spring is arranged in an inner cavity of the second positioning cylinder; the bottom end of the second spring is fixedly connected with the inner wall of the second positioning cylinder, and the top end of the second spring is fixedly connected with a second movable rod; the top end of the second movable rod upwards extends out of a second positioning cylinder and is fixedly connected with a supporting plate, two supporting columns upwards extend out of the left end and the right end of the supporting plate, and the tops of the two supporting columns are in contact with the bottom of the main board body.

Preferably, two fan fixing seats are arranged below the main board body, wherein the bottoms of the fan fixing seats are fixedly connected with the box body, and the top of each fan fixing seat is provided with an exhaust fan.

Preferably, the bottom of the case body is provided with a heat dissipation hole, wherein the heat dissipation hole is arranged below the fan fixing seat, and a filter screen is arranged in the heat dissipation hole.

Preferably, the top end of the movable rotating shaft is provided with a fastening bolt, and the bottom end of the fastening bolt penetrates through the movable rotating shaft and abuts against the upper end of the clamping block.

Preferably, two clamping mechanisms are arranged, wherein the two clamping mechanisms are symmetrically arranged; the clamping block and the locking clamping block are located at the same horizontal height, and openings of a first clamping groove on the right side of the clamping block and an opening of a second clamping groove on the left side of the locking clamping block are arranged oppositely.

Preferably, a first spring pin is mounted at the upper end of the first clamping groove, and the bottom of the first spring pin is fixedly connected with the clamping block through a third spring; the pin head of the first spring pin is spherical, extends out of the first clamping groove and is abutted against the upper surface of the main board body; a second spring pin is arranged at the upper end part of the second clamping groove, and the bottom of the second spring pin is fixedly connected with the locking clamping block through a fourth spring; the pin head of the second spring pin is spherical, and the pin head extends out of the second clamping groove and abuts against the upper surface of the main board body.

Preferably, a third positioning cylinder is arranged on the left side of the main board body, the bottom end of the third positioning cylinder is fixedly connected with the bottom of the box body, and a tension spring is arranged in an inner cavity of the third positioning cylinder; the bottom end of the tension spring is fixedly connected with the bottom of the third positioning cylinder, and the top end of the tension spring is fixedly connected with the pull rod; the top of the pull rod extends upwards to form a third positioning cylinder and is movably connected with the pressing block.

Preferably, an adjusting bolt is arranged at the top end of the locking clamping block, and the bottom end of the adjusting bolt penetrates through the locking clamping block and extends downwards into the second clamping groove; and a pressing plate is arranged in the second clamping groove and fixedly connected with the adjusting bolt.

The invention has the beneficial effects that: the left side of the main board body is provided with the two clamping mechanisms, the right side of the main board body is provided with the locking clamping block, and the left end and the right end of the main board body are clamped and fixed through a first clamping groove in the clamping block and a second clamping groove in the locking clamping block; the supporting plate is arranged at the bottom of the main board body, and the supporting columns on the supporting plate play a role in stabilizing the main board body; simultaneously, utilize briquetting and clamp plate to realize compressing tightly of computer motherboard, its design scientific and reasonable can realize that the quick installation of computer motherboard is fixed and make the computer motherboard fixed firm, difficult not hard up, easy and simple to handle, convenient to use can install not unidimensional mainboard moreover, need not mounting tool, labour saving and time saving during the installation has brought a great deal of facility for the user.

Drawings

FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention.

Fig. 2 is a top view of a preferred embodiment of the present invention.

Fig. 3 is a schematic view of the structure of a chucking mechanism according to a preferred embodiment of the present invention.

Fig. 4 is a schematic view of the internal structure of the chucking mechanism shown in fig. 3.

Fig. 5 is a schematic structural view of a locking clamp block according to a preferred embodiment of the present invention.

Fig. 6 is a schematic structural diagram of another preferred embodiment of the present invention.

Fig. 7 is a top view of another preferred embodiment of the present invention.

Fig. 8 is a schematic view showing the construction of a chucking mechanism according to another preferred embodiment of the present invention.

Fig. 9 is a schematic view of another preferred embodiment locking clamp block of the present invention.

Wherein: 1. a box body; 2. a chucking mechanism; 201. a stationary housing; 202. a movable rotating shaft; 203. a clamping block; 204. a poke rod; 205. fastening a bolt; 206. a spring; 3. a first positioning cylinder; 4. a slide rail; 5. a chute; 6. a groove; 7. a first card slot; 8. a spring clamp groove; 9. connecting blocks; 10. an arc-shaped through groove; 11. a first spring; 12. a first movable bar; 13. a first chute; 14. a first slider; 15. locking the clamping block; 16. a second card slot; 17. a main board body; 18. a second positioning cylinder; 19. a second spring; 20. a second movable bar; 21. a second chute; 22. a second slider; 23. a support plate; 24. a support pillar; 25. a support pad; 26. a fan fixing seat; 27. an exhaust fan; 28. heat dissipation holes; 29. a filter screen; 30. a first spring pin; 31. a third spring; 32. a second spring pin; 33. a fourth spring; 34. a third positioning cylinder; 35. a tension spring; 36. a pull rod; 37. briquetting; 38. adjusting the bolt; 39. and (7) pressing a plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 to 5 in combination, a computer case for hardware development, which is convenient for installing a motherboard, includes a case body 1; a clamping mechanism 2 is fixed at the left end of the box body 1, a first positioning cylinder 3 is fixed at the right end of the box body 1, and the clamping mechanism 2 is arranged opposite to the first positioning cylinder 3; the clamping mechanism 2 comprises a fixed shell 201, a movable rotating shaft 202, a clamping block 203, a poke rod 204, a fastening bolt 205 and a spring 206, wherein the fixed shell 201 is of a rectangular cavity structure, the right end of the fixed shell 201 is provided with an opening, and the left end of the fixed shell is fixedly connected with the box body 1; the bottom of the fixed shell 201 is provided with two inverted-Y-shaped slide rails 4, and the two slide rails 4 are symmetrically arranged at the bottom of the fixed shell 201; the bottom of the clamping block 203 is provided with a sliding groove 5 matched with the sliding rail 4, and the clamping block 203 is arranged in the cavity of the fixed shell 201 in a sliding manner through the matching of the sliding rail 4 and the sliding groove 5.

The top of the clamping block 203 is provided with a groove 6, and the right end of the clamping block 203 is provided with a first clamping groove 7; a spring 206 is arranged between the left end of the clamping block 203 and the fixed shell 201, wherein a spring clamping groove 8 is formed in the left end of the clamping block 203, the left end of the spring 206 is fixedly connected with the fixed shell 201, and the right end of the spring 206 is arranged in the spring clamping groove 8 and fixedly connected with the clamping block 203. A movable rotating shaft 202 is arranged at the top of the fixed shell 201, wherein a connecting block 9 is arranged at the right side of the movable rotating shaft 202, and a poke rod 204 is fixed at the end part of the connecting block 9; the top of the fixed shell 201 is provided with an arc-shaped through groove 10, wherein the poke rod 204 passes through the arc-shaped through groove 10 and is inserted into the groove 6 at the top of the clamping block 203; the top end of the movable rotating shaft 202 is provided with a fastening bolt 205, and the bottom end of the fastening bolt 205 penetrates through the movable rotating shaft 202 and abuts against the upper end of the clamping block 203.

Activity pivot 202 can be at fixed casing 201 upper surface rotation, connecting block 9 through stirring activity pivot 202 right side drives poker rod 204 and removes along arc through groove 10, when poker rod 204 removes along arc through groove 10, poker rod 204 bottom removes in the recess 6 at chucking piece 203 top, and drive chucking piece 203 along slide rail 4 to the intracavity shrinkage of fixed casing 201, and extrude spring 206, after chucking piece 203 contracts fixed casing 201 completely, through the fastening bolt 205 fixed chucking piece 203 on screwing up activity pivot 202 top, when needing to use chucking piece 203, only need to unscrew fastening bolt 205, chucking piece 203 is along the fixed casing 201 of 4 automatic roll-offs of slide rail under the effect of spring 206 elasticity.

Referring to fig. 1 again, a first spring 11 is disposed in the inner cavity of the first positioning cylinder 3, wherein the right end of the first spring 11 is fixedly connected to the inner wall of the first positioning cylinder 3, and the left end of the first spring 11 is fixedly connected to a first movable rod 12; a first sliding groove 13 is formed in the inner wall of the first positioning cylinder 3, a first sliding block 14 is arranged at the joint of the first movable rod 12 and the first spring 11, wherein the first sliding block 14 is arranged in the first sliding groove 13, and the first movable rod 12 can stretch smoothly by the matching of the first sliding block 14 and the first sliding groove 13, and also has a limiting effect; the left end of the first movable rod 12 extends leftwards to form a first positioning cylinder 3 and is fixedly connected with a locking clamping block 15, and a second clamping groove 16 is formed in the left end of the locking clamping block 15.

A main board body 17 is arranged between the first clamping groove 7 and the second clamping groove 16, wherein the first clamping groove 7 and the second clamping groove 16 are used for clamping and fixing the left end and the right end of the main board body 17; a second positioning cylinder 18 is arranged below the main board body 17, the bottom end of the second positioning cylinder 18 is fixedly connected with the bottom of the box body 1, and a second spring 19 is arranged in an inner cavity of the second positioning cylinder 18; the bottom end of the second spring 19 is fixedly connected with the inner wall of the second positioning cylinder 18, and the top end of the second spring 19 is fixedly connected with a second movable rod 20; a second sliding groove 21 is formed in the inner wall of the second positioning cylinder 18, a second sliding block 22 is arranged at the joint of the second movable rod 20 and the second spring 19, wherein the second sliding block 22 is arranged in the second sliding groove 21, and the second movable rod 20 can stretch up and down smoothly by the cooperation of the second sliding block 22 and the second sliding groove 21, and also has a limiting effect.

The second movable rod 20 top upwards extends a second location section of thick bamboo 18, wherein second movable rod 20 top is fixed with backup pad 23, wherein both ends upwards extend two support columns 24 about backup pad 23, wherein each support column 24 top is fixedly connected with supporting pad 25 respectively, this supporting pad 25 top and mainboard body 17 bottom contact, use through the cooperation of second movable rod 20 with backup pad 23 and support column 24, can play the supporting role to mainboard body 17, stability when increasing mainboard body 17 and using.

Further, mainboard body 17 below is equipped with two fan fixing base 26, wherein fan fixing base 26 bottom and 1 fixed connection of box, and exhaust fan 27 is installed at this fan fixing base 26 top, can accelerate mainboard body 17's heat dissipation through exhaust fan 27, has avoided the appearance of the overheated damaged condition of mainboard body 17, has prolonged mainboard body 17's life.

Further, louvre 28 has been seted up to box 1 bottom, and wherein louvre 28 sets up in fan fixing base 26 below, is equipped with filter screen 29 in this louvre 28, and louvre 28 mainly used exhaust fan 27 is with the heat discharge box 1 that mainboard body 17 gived off, and filter screen 29 can adsorb the dust in the box 1 at exhaust fan 27 radiating process on the one hand, and on the other hand can effectively avoid external dust to get into inside the box 1.

Furthermore, two clamping mechanisms 2 are arranged, wherein the two clamping mechanisms 2 are symmetrically arranged, and the two clamping mechanisms 2 can increase the stability of the main board body 17; the clamping block 203 and the locking clamping block 15 are located at the same horizontal height, wherein the opening of the first clamping groove 7 on the right side of the clamping block 203 and the opening of the second clamping groove 16 on the left side of the locking clamping block 15 are arranged oppositely, and the clamping fixing is carried out on the left end and the right end of the mainboard body 17 through the first clamping groove 7 on the clamping block 203 and the second clamping groove 16 on the locking clamping block 15.

Referring to fig. 1, fig. 4 and fig. 5, a first spring pin 30 is installed at the upper end of the first card slot 7, and the bottom of the first spring pin 30 is fixedly connected to the clamping block 203 through a third spring 31; the pin head of the first spring pin 30 is spherical, the pin head extends out of the first clamping groove 7 and abuts against the upper surface of the main board body 17, wherein the first spring pin 30 is mainly used for pressing the main board body 17 inserted into the first clamping groove 7 downwards; the upper end of the second clamping groove 16 is provided with a plurality of second spring pins 32, the second spring pins 32 are equidistantly distributed at the upper end of the second clamping groove 16, and the bottom of each second spring pin 32 is fixedly connected with the locking clamping block 15 through a fourth spring 33; the pin head of the second spring pin 32 is spherical, extends out of the second clamping groove 16 and abuts against the upper surface of the main board body 17, wherein the second spring pin 32 is mainly used for pressing the main board body 17 inserted into the second clamping groove 16 downwards; carry out the centre gripping to mainboard body 17 respectively through first spring catch 30 and second spring catch 32 and compress tightly, can realize the quick installation of mainboard body 17 simultaneously and fix.

In this embodiment, when in use, the connecting block 9 on the right side of the movable rotating shaft 202 is firstly shifted to enable the shifting rod 204 fixed at the end of the connecting block 9 to move along the arc-shaped through groove 10, when the shifting rod 204 moves along the arc-shaped through groove 10, the bottom of the shifting rod 204 moves in the groove 7 at the top of the clamping block 203 and drives the clamping block 203 to shrink towards the inner cavity of the fixed shell 201 along the sliding rail 4, so that the spring 206 is extruded at the left end of the clamping block 203, and after the clamping block 203 is completely shrunk into the fixed shell 201, the clamping block 203 is fixed by screwing the fastening bolt 205 at the top end of the movable rotating shaft 202; then, the main board body 17 is placed on the supporting column 24, the right end of the main board body 17 is inserted into the second clamping groove 16, the main board body 17 is pressed downwards through the second spring pin 32 at the top end of the second clamping groove 16, then the left end of the main board body 17 is aligned to the first clamping groove 7 on the left side, meanwhile, the fastening bolt 205 is loosened, the fastening block 203 is pushed out of the fixed shell 201 through the reaction force of the spring 206, so that the left side of the main board body 17 is inserted into the first clamping groove 7, the main board body 17 is pressed downwards through the first spring pin 30 at the top end of the first clamping groove 7, finally, the fastening bolt 205 is screwed to fix the fastening block 203, the main board body 17 is firmly fixed between the clamping mechanism 2 and the locking clamping block 15, quick installation of the main board body 17 is achieved, and the purpose of convenient use is achieved.

Referring to fig. 6 to 9, a third positioning cylinder 34 is disposed on the left side of the main board body 17, wherein the bottom end of the third positioning cylinder 34 is fixedly connected to the bottom of the box 1, and a tension spring 35 is disposed in an inner cavity of the third positioning cylinder 34; the bottom end of the tension spring 35 is fixedly connected with the bottom of the third positioning cylinder 34, and the top end of the tension spring 35 is provided with a pull rod 36; a third positioning cylinder 34 extends upwards from the top of the pull rod 36, wherein a semicircular pressing block 37 is arranged at the top end of the pull rod 36, and the pressing block 37 is movably connected with the pull rod 36; can realize compressing tightly mainboard body 17 through setting up of extension spring 35, pull rod 36 and briquetting 37, only need upwards stimulate pull rod 36 during the use and drive extension spring 35 and upwards extend, highly be higher than mainboard body 17's height back when briquetting 37, rotate briquetting 37 to mainboard body 17 directly over, loosen pull rod 36, drive briquetting 37 and compress tightly mainboard body 17 downwards under the effect of extension spring 35.

Furthermore, an adjusting bolt 38 is arranged at the top end of the locking clamping block 15, and the bottom end of the adjusting bolt 38 penetrates through the locking clamping block 15 and extends downwards into the second clamping groove 16; a pressure plate 39 is arranged in the second clamping groove 16, and the pressure plate 39 is fixedly connected with the adjusting bolt 38 (as shown in fig. 9); through the cooperation of adjusting bolt 38 and clamp plate 39, can be fast fix mainboard body 17 in second draw-in groove 16.

In this embodiment, when in use, the connecting block 9 on the right side of the movable rotating shaft 202 is firstly shifted to drive the shifting rod 204 at the end of the connecting block 9 to move along the arc-shaped through groove 10, when the shifting rod 204 moves along the arc-shaped through groove 10, the bottom of the shifting rod 204 moves in the groove 6 at the top of the clamping block 203, and simultaneously the clamping block 203 is driven to shrink towards the inner cavity of the fixed shell 201 along the sliding rail 4, so that the spring 206 is extruded at the left end of the clamping block 203, and after the clamping block 203 is completely shrunk into the fixed shell 201, the clamping block 203 is fixed by screwing the fastening bolt 205 at the top end of the movable rotating shaft 202; then, the main board body 17 is placed on the supporting column 24, the right end of the main board body 17 is inserted into the second clamping groove 16, the left end of the main board body 17 is aligned with the first clamping groove 7 on the left side, meanwhile, the fastening bolt 205 at the top end of the movable rotating shaft 202 is loosened, the clamping block 203 is pushed out of the fixed shell 201 under the action of the elastic force of the spring 206, so that the left side of the main board body 17 is inserted into the first clamping groove 7, and the clamping block 203 is fixed by screwing the fastening bolt 205; then, the pull rod 36 is pulled upwards to drive the tension spring 35 to extend upwards, so that the height of the press block 37 at the top end of the pull rod 36 is higher than that of the main board body 17, the press block 37 is rotated to be right above the main board body 17, the pull rod 36 is loosened, and the press block 37 is driven to press downwards on the upper surface of the main board body 17 under the restoring force of the tension spring 35; meanwhile, the adjusting bolt 38 on the locking clamping block 15 is rotated to drive the pressing plate 39 in the second clamping groove 16 to press the main board body 17 downwards; the main board body 17 is firmly fixed between the clamping mechanism 2 and the locking clamping block 15, so that the main board body 17 is quickly installed, and the purpose of convenient use is achieved.

According to the invention, the two clamping mechanisms 2 are arranged on the left side of the main board body 17, the locking clamping block 15 is arranged on the right side of the main board body 17, and the left end and the right end of the main board body 17 are clamped and fixed; the supporting plate 23 and the supporting column 24 are arranged at the bottom of the main board body 17 to stabilize the main board body 17; meanwhile, the pressing block 37 and the pressing plate 39 are used for compressing the main board body 17, the design is scientific and reasonable, the computer main board can be quickly installed and fixed, and the computer main board is firmly fixed, is not easy to loosen, is simple and convenient to operate and is convenient to use.

While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The utility model provides a computer machine case that is used for hardware development's installation mainboard of being convenient for, includes the box, its characterized in that: a clamping mechanism is fixed at the left end of the box body, a first positioning barrel is fixed at the right end of the box body, and the clamping mechanism and the first positioning barrel are arranged oppositely; the clamping mechanism comprises a fixed shell, a movable rotating shaft, a clamping block, a poking rod, a fastening bolt and a spring, wherein the fixed shell is of a rectangular cavity structure, the right end of the fixed shell is provided with an opening, and the left end of the fixed shell is fixedly connected with the box body; the bottom of the cavity of the fixed shell is provided with a slide rail, and the clamping block is arranged in the cavity of the fixed shell in a sliding manner; a groove is formed in the top of the clamping block, a first clamping groove is formed in the right end of the clamping block, and a spring is arranged between the left end of the clamping block and the fixed shell; the top of the fixed shell is provided with a movable rotating shaft, wherein the right side of the movable rotating shaft is provided with a connecting block, and the end part of the connecting block is fixed with a poke rod; the top of the fixed shell is provided with an arc-shaped through groove, and the poke rod penetrates through the arc-shaped through groove and is inserted into the groove in the top of the clamping block;

a first spring is arranged in the inner cavity of the first positioning cylinder, wherein the right end of the first spring is fixedly connected with the inner wall of the first positioning cylinder, and the left end of the first spring is fixedly connected with a first movable rod; the left end of the first movable rod extends leftwards to form a first positioning cylinder and is fixedly connected with a locking clamping block, and the left end of the locking clamping block is provided with a second clamping groove;

a main board body is arranged between the first clamping groove and the second clamping groove, and a second positioning cylinder is arranged below the main board body; the bottom end of the second positioning cylinder is fixedly connected with the bottom of the box body, and a second spring is arranged in an inner cavity of the second positioning cylinder; the bottom end of the second spring is fixedly connected with the inner wall of the second positioning cylinder, and the top end of the second spring is fixedly connected with a second movable rod; the top end of the second movable rod upwards extends out of a second positioning cylinder and is fixedly connected with a supporting plate, two supporting columns upwards extend out of the left end and the right end of the supporting plate, and the tops of the two supporting columns are in contact with the bottom of the main board body.

2. The computer case convenient for installing a mainboard for hardware development as claimed in claim 1, wherein two fan fixing seats are arranged below the mainboard body, wherein the bottom of each fan fixing seat is fixedly connected with the case body, and an exhaust fan is installed at the top of each fan fixing seat.

3. The computer case convenient for installing a motherboard for hardware development as claimed in claim 2, wherein the bottom of the case body is provided with heat dissipation holes, wherein the heat dissipation holes are arranged below the fan fixing seat, and a filter screen is arranged in the heat dissipation holes.

4. The computer case for hardware development and facilitating installation of a motherboard according to claim 1, wherein a fastening bolt is disposed at a top end of the movable rotating shaft, and a bottom end of the fastening bolt penetrates through the movable rotating shaft and abuts against an upper end of the clamping block.

5. The computer case for hardware development and convenient for installing a main board according to claim 1, wherein a first spring pin is installed at an upper end of the first slot, and a bottom of the first spring pin is fixedly connected with the clamping block through a third spring.

6. The computer case convenient for installing a main board for hardware development as claimed in claim 1, wherein a second spring pin is installed at an upper end of the second slot, and a bottom of the second spring pin is fixedly connected with the locking clamp block through a fourth spring.

7. The computer case convenient for installing the main board for hardware development as claimed in claim 1, wherein a third positioning cylinder is arranged on the left side of the main board body, wherein the bottom end of the third positioning cylinder is fixedly connected with the bottom of the case body, and a tension spring is arranged in an inner cavity of the third positioning cylinder; the bottom end of the tension spring is fixedly connected with the bottom of the third positioning cylinder, and the top end of the tension spring is provided with a pull rod; and a third positioning cylinder extends upwards from the top of the pull rod, wherein a pressing block is arranged at the top end of the pull rod, and the pressing block is movably connected with the pull rod.

8. The computer case for hardware development and convenient for installing a main board according to claim 1, wherein an adjusting bolt is arranged at the top end of the locking clamping block, and the bottom end of the adjusting bolt penetrates through the locking clamping block and extends downwards into the second clamping groove; and a pressing plate is arranged in the second clamping groove and fixedly connected with the adjusting bolt.