Case dustproof net fixing device

Abstract

The utility model provides a case dust screen fixing device, which belongs to the technical field of computer dust prevention and comprises a case shell, a fixing hole A and a mounting hole are respectively formed in the top of the case shell, a rack is arranged on the front side of the case shell, sliding grooves are symmetrically formed in two sides of the inner side of the rack, and a positioning groove is formed in the bottom of the inner side of the rack. A first fixing assembly is arranged in the positioning groove, a dustproof net is arranged on the rack in a sliding mode, a buckle lug is arranged at the top of the dustproof net, a fixing hole B is formed in the buckle lug, a buckle pin is arranged at the bottom of the dustproof net, the dustproof net slides downwards, and the buckle pin is inserted into the positioning groove and abuts against the first fixing assembly. A second fixing assembly is arranged at the mounting hole, the dustproof net slides on the rack until the buckling lug abuts against the case shell, the fixing hole A and the fixing hole B are coaxial, and the second fixing assembly fixes the fixing hole A and the fixing hole B. Through the structure, the problems that existing screw fixing and dismounting are difficult, and magnetic attraction fixing is not reliable are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of computer dustproofing, in particular to a chassis dustproof net fixing device. Background Art

[0002] As an important barrier to protect the internal components of the computer, the chassis dust net is generally installed at the vents of the chassis. However, after long-term use, dust is easily accumulated on the surface of the dust net, affecting the ventilation effect. Since the existing dust net fixing methods are mostly magnetic or screw fixing, the cleaning process is very cumbersome. The magnetic dust net fixing reliability is insufficient, and the screw fixing increases the difficulty of disassembly, further increasing the difficulty of cleaning. Therefore, a more convenient installation and disassembly dust net fixing device is urgently needed to solve the problems existing in the prior art. Utility Model Content

[0003] In order to make up for the above shortcomings, the utility model provides a chassis dust screen fixing device for solving the above problems.

[0004] The utility model is achieved in this way:

[0005] A chassis dust net fixing device comprises a chassis shell, wherein a fixing hole A and a mounting hole are respectively provided on the top of the chassis shell, a rack is provided on the front side of the chassis shell, sliding grooves are symmetrically provided on both sides of the inner side of the rack, a positioning groove is provided at the bottom of the inner side of the rack, a first fixing component is provided inside the positioning groove, a dust net is slidably provided on the rack, a buckle ear is provided on the top of the dust net, a fixing hole B is provided on the buckle ear, a snap pin is provided at the bottom of the dust net, the dust net slides downward, the snap pin is inserted into the positioning groove and conflicts with the first fixing component, a second fixing component is provided at the mounting hole, the dust net slides on the rack until the buckle ear conflicts with the chassis shell, the fixing hole A and the fixing hole B are coaxial, and the second fixing component fixes the fixing hole A and the fixing hole B.

[0006] In an embodiment of the utility model, side ears are arranged on both sides of the dustproof net, and the dustproof net is slidably arranged on the side groove through the side ears.

[0007] In one embodiment of the utility model, the first fixing component includes a side groove, a spring A and an extrusion block, the side grooves are symmetrically arranged inside the positioning groove, the extrusion block is slidably arranged inside the side groove, the spring A is arranged between the extrusion block and the side groove, and the end of the extrusion block is an arc surface.

[0008] In an embodiment of the present utility model, a locking hole is provided on the front side of the locking pin, the locking pin is inserted into the interior of the positioning groove, and the extrusion block abuts against the edge of the locking hole.

[0009] In one embodiment of the utility model, the second fixing assembly includes an outer cylinder and a sliding rod, connecting parts are provided on both sides of the outer cylinder, and the connecting parts are fixedly connected to the bottom of the mounting hole, the interior of the outer cylinder is composed of two grooves with different inner diameters, and the drop thereof is a raised part, a sliding sleeve is provided inside the outer cylinder, and a flange is provided at the bottom edge of the sliding sleeve, and when the sliding sleeve slides upward, the flange contacts the raised part, the sliding rod is inserted into the outer cylinder and passes through the sliding sleeve, a limiting plate is provided at the bottom of the sliding rod, and a spring B is provided between the limiting plate and the sliding sleeve.

[0010] In one embodiment of the utility model, the second fixing assembly further comprises a connecting clamp block, the connecting clamp block is provided with a clamping portion, the top of the sliding rod passes through the clamping portion and is fixed by bolts, and an anchor is provided at one end of the connecting clamp block away from the clamping portion.

[0011] In an embodiment of the utility model, a first limiting groove and a second limiting groove are circumferentially provided at the top edge of the outer cylinder, and a direction limiting block is provided on the connecting clamp block.

[0012] In one embodiment of the utility model, a fixing sleeve is provided on the chassis shell, and the sliding rod is rotated when the sliding rod moves, the direction limit block is in the same direction as the second limit groove, the anchor nail is coaxial with the fixing sleeve, the direction limit block is in the same direction as the first limit groove, and the anchor nail is coaxial with the fixing hole A.

[0013] In an embodiment of the utility model, a handle is provided on the top of the sliding rod.

[0014] The beneficial effects of the utility model are: a sliding setting is adopted between the frame and the dustproof net, which simplifies the disassembly and assembly process and brings a convenient operation experience to the user; secondly, the snap pin is cleverly inserted into the positioning groove, and the extrusion block fits tightly with the edge of the snap hole, providing a firm initial fixation for the dustproof net to ensure its stable placement; in addition, by pulling and rotating the second fixing component, the anchor is moved to the fixing hole A; after loosening the slide rod, the anchor passes through the fixing hole B and the fixing hole A in turn, thereby completing the firm fixation of the dustproof net; if the dustproof net needs to be removed, only the second fixing component needs to be pulled and rotated to move the anchor to the fixing sleeve; with a little force, the dustproof net can be easily pulled out from the snap mechanism; compared with the bolt fixing method, installation and disassembly are more convenient, and the fixing effect is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 The overall structural diagram provided for the implementation mode of the utility model;

[0017] Figure 2 for Figure 1 The structural diagram at A in the middle;

[0018] Figure 3 for Figure 1 The structural diagram at B in the middle;

[0019] Figure 4 for Figure 1 Schematic diagram of the structure at C in the middle;

[0020] Figure 5 A schematic cross-sectional view of a first fixing assembly provided in an embodiment of the utility model;

[0021] Figure 6 A schematic diagram of a partial structure of a chassis shell provided in an embodiment of the utility model;

[0022] Figure 7 A schematic cross-sectional view of the second fixing assembly provided in an embodiment of the utility model;

[0023] Figure 8 A schematic cross-sectional structural diagram of a fixing assembly provided in an embodiment of the utility model.

[0024] In the figure: 10, chassis shell; 11, fixing hole A; 12, fixing sleeve; 13, mounting hole; 20, frame; 21, slide groove; 22, positioning groove; 23, first fixing component; 231, side groove; 232, spring A; 233, extrusion block; 30, dust screen; 31, buckle ear; 311, fixing hole B; 32, side ear; 33, buckle pin; 331, buckle hole; 40, second fixing component; 41, outer tube; 411, first limiting groove; 412, second limiting groove; 413, connecting part; 414, protruding part; 42, sliding rod; 421, handle; 422, limiting plate; 43, connecting clamp; 431, anchor nail; 432, direction limiting block; 433, clamping part; 44, spring B; 45, sliding sleeve; 451, flange. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0027] like Figure 1 As shown in or 6, the utility model provides a chassis dust net fixing device, including a chassis shell 10, a frame 20 is arranged on the front side of the chassis shell 10, and sliding grooves 21 are symmetrically opened on both sides of the inner side of the frame 20, and a positioning groove 22 is opened at the bottom of the inner side of the frame 20, and a first fixing component 23 is arranged inside the positioning groove 22 to provide preliminary fixation for the dust net 30, and a dust net 30 is slidably arranged on the frame 20, and a buckle ear 31 is arranged on the top of the dust net 30, and a buckle pin 33 is arranged on the bottom. When the dust net 30 slides downward, the buckle pin 33 can be inserted into the positioning groove 22 and conflict with the first fixing component 23 to achieve simple fixation, and a second fixing component 40 is arranged on the top of the chassis shell 10. When the dust net 30 slides on the frame 20 until the buckle ear 31 conflicts with the chassis shell 10, the second fixing component 40 further fixes the two to ensure the stability of the dust net 30, which is more convenient and quicker than traditional screw fixing.

[0028] like Figure 2 As shown, side ears 32 are provided on both sides of the dustproof net 30 , and the side ears 32 are slidably arranged on the side grooves 231 .

[0029] like Figure 4-5 As shown, the first fixing component 23 includes a side groove 231, a spring A232 and an extrusion block 233. The side grooves 231 are symmetrically arranged inside the positioning groove 22. The extrusion block 233 is slidably arranged inside the side groove 231. The spring A232 is arranged between the extrusion block 233 and the side groove 231. The end of the extrusion block 233 is an arc surface, which is easy to be pushed open by the snap pin 33. When the snap pin 33 is inserted downward, the two extrusion blocks 233 can be pushed to both sides to achieve smooth engagement.

[0030] Further, such as Figure 3As shown, a locking hole 331 is opened on the front side of the buckle pin 33, and the buckle pin 33 is inserted into the interior of the positioning groove 22. The extrusion block 233 is tightly in contact with the edge of the locking hole 331 to provide preliminary fixation for the dustproof net 30 to ensure stable placement.

[0031] like Figure 6 As shown, the top of the chassis shell 10 is respectively provided with a fixing hole A11 and a mounting hole 13.

[0032] like Figure 7-8 As shown, the second fixing assembly 40 includes an outer cylinder 41 and a sliding rod 42. Connecting parts 413 are provided on both sides of the outer cylinder 41. The connecting parts 413 are fixedly connected to the bottom of the mounting hole 13. The interior of the outer cylinder 41 is composed of two grooves with different inner diameters, and the height difference thereof is a raised part 414. A sliding sleeve 45 is provided inside the outer cylinder 41. A flange 451 is provided at the bottom edge of the sliding sleeve 45. When the sliding sleeve 45 slides upward, the flange 451 abuts against the raised part 414. The sliding rod 42 is inserted into the outer cylinder 41 and passes through the sliding sleeve 45. A limiting plate 422 is provided at the bottom of the sliding rod 42. A spring B44 is provided between the limiting plate 422 and the sliding sleeve 45. The sliding sleeve 45 ensures the stability of the radial sliding of the sliding rod 42 in the outer cylinder 41, thereby avoiding the jamming phenomenon caused by radial deviation.

[0033] Furthermore, the second fixing assembly 40 also includes a connecting clamp block 43, on which a clamping portion 433 is provided. The top of the sliding rod 42 passes through the clamping portion 433 and is fixed by bolts. An anchor 431 is provided at one end of the connecting clamp block 43 away from the clamping portion 433.

[0034] Furthermore, a first limiting groove 411 and a second limiting groove 412 are circumferentially formed at the top edge of the outer cylinder 41 , and a direction limiting block 432 is provided on the connecting clamp block 43 .

[0035] Furthermore, a fixing sleeve 12 is provided on the chassis shell 10, and when the slide rod 42 moves, the slide rod 42 is rotated, the direction limit block 432 is in the same direction as the second limit groove 412, the anchor 431 is coaxial with the fixing sleeve 12, the direction limit block 432 is in the same direction as the first limit groove 411, and the anchor 431 is coaxial with the fixing hole A11.

[0036] like Figure 6 As shown, a fixing hole B311 is formed on the buckle ear 31 , and when the dustproof net 30 slides on the slide groove 21 , the fixing hole A11 and the fixing hole B311 are coaxial.

[0037] Specifically, in the default state of the second fixing component 40, the direction limit block 432 is arranged in the second limit groove 412, and the anchor pin 431 is in conflict with the top of the fixing sleeve 12. In this state, the dustproof net 30 can move freely on the side groove 231 to avoid being obstructed by the second fixing component 40. When the buckle ear 31 is in conflict with the chassis shell 10, the dustproof net 30 is initially fixed. At this time, the slide bar 42 is pulled to move the direction limit block 432 out of the second limit groove 412, and then the slide bar 42 is rotated to align the direction limit block 432 with the first limit groove 411. After releasing the slide bar 42, the anchor pin 431 passes through the fixing hole B311 and the fixing hole A11 in turn, and finally the direction limit block 432 smoothly enters the first limit groove 411 to complete the fixation of the dustproof net 30.

[0038] As a preferred embodiment, a handle 421 may be further provided on the top of the slide bar 42 to facilitate the user to easily operate the pulling and rotating actions of the slide bar 42 .

[0039] Specifically, the working principle of the chassis dust screen fixing device is as follows: during installation, first pull and rotate the second fixing component 40 to move the anchor nail 431 to the fixing sleeve 12, and then slide the dust screen 30 on the frame 20 through the slide groove 21 on the frame 20, insert the buckle pin 33 at the bottom of the dust screen 30 into the positioning groove 22, and push the extrusion block 233 in the first fixing component 23 to both sides until the extrusion block 233 is tightly in contact with the edge of the card hole 331, that is, the preliminary fixation is completed. When the dust net 30 needs to be removed, pull and rotate the second fixing component 40 again to move the anchor 431 to the fixing hole A11. After the slide rod 42 is loosened, the anchor 431 passes through the fixing hole B311 and the fixing hole A11 in sequence to complete the fixation of the dust net 30. When it needs to be removed, pull and rotate the second fixing component 40 to move the anchor 431 to the fixing sleeve 12. The dust net 30 can be pulled out of the buckle mechanism with a little force. The above structure solves the problems of difficult disassembly of existing screw fixing and unreliable magnetic fixing.

[0040] The utility model is further described above with the help of specific embodiments, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the utility model. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the utility model.

Claims

1. A chassis dust screen fixing device, characterized in that: The invention comprises a chassis shell (10), wherein the top of the chassis shell (10) is respectively provided with a fixing hole A (11) and a mounting hole (13), a frame (20) is provided on the front side of the chassis shell (10), two sides of the inner side of the frame (20) are symmetrically provided with sliding grooves (21), a bottom of the inner side of the frame (20) is provided with a positioning groove (22), a first fixing component (23) is provided inside the positioning groove (22), a dustproof net (30) is slidably provided on the frame (20), a buckle ear (31) is provided on the top of the dustproof net (30), and a fixing hole B (311) is provided on the buckle ear (31) A buckle pin (33) is provided at the bottom of the dustproof net (30), and the dustproof net (30) slides downward, and the buckle pin (33) is inserted into the positioning groove (22) and contacts with the first fixing component (23). A second fixing component (40) is provided at the mounting hole (13). The dustproof net (30) slides on the frame (20) until the buckle ear (31) contacts with the chassis shell (10), the fixing hole A (11) and the fixing hole B (311) are coaxial, and the second fixing component (40) fixes the fixing hole A (11) and the fixing hole B (311).

2. A chassis dust screen fixing device according to claim 1, characterized in that: The first fixing component (23) comprises a side groove (231), a spring A (232) and an extrusion block (233); the side groove (231) is symmetrically arranged inside the positioning groove (22); the extrusion block (233) is slidably arranged inside the side groove (231); the spring A (232) is arranged between the extrusion block (233) and the side groove (231); and the end of the extrusion block (233) is an arc surface.

3. A chassis dust screen fixing device according to claim 2, characterized in that: Side ears (32) are arranged on both sides of the dustproof net (30), and the dustproof net (30) is slidably arranged on the side groove (231) through the side ears (32).

4. A chassis dust screen fixing device according to claim 3, characterized in that: A locking hole (331) is provided on the front side of the locking pin (33); the locking pin (33) is inserted into the interior of the positioning groove (22); and the extrusion block (233) abuts against the edge of the locking hole (331).

5. The chassis dust screen fixing device according to claim 1, characterized in that: The second fixing assembly (40) comprises an outer cylinder (41) and a sliding rod (42). Connecting parts (413) are arranged on both sides of the outer cylinder (41). The connecting parts (413) are fixedly connected to the bottom of the mounting hole (13). The interior of the outer cylinder (41) is composed of two grooves with different inner diameters, and the height difference thereof is a raised part (414). A sliding sleeve (45) is arranged inside the outer cylinder (41). A flange (451) is arranged at the bottom edge of the sliding sleeve (45). When the sliding sleeve (45) slides upward, the flange (451) contacts the raised part (414). The sliding rod (42) is inserted into the outer cylinder (41) and passes through the sliding sleeve (45). A limiting plate (422) is arranged at the bottom of the sliding rod (42). A spring B (44) is arranged between the limiting plate (422) and the sliding sleeve (45).

6. A chassis dust screen fixing device according to claim 5, characterized in that: The second fixing assembly (40) further comprises a connecting clamp block (43), the connecting clamp block (43) being provided with a clamping portion (433), the top of the sliding rod (42) passing through the clamping portion (433) and being fixed by bolts, and an anchor nail (431) being provided at one end of the connecting clamp block (43) away from the clamping portion (433).

7. A chassis dust screen fixing device according to claim 6, characterized in that: A first limiting groove (411) and a second limiting groove (412) are circumferentially provided at the top edge of the outer cylinder (41), and a direction limiting block (432) is provided on the connecting clamp block (43).

8. The chassis dust screen fixing device according to claim 7, characterized in that: A fixing sleeve (12) is provided on the chassis shell (10); when the sliding rod (42) moves, the sliding rod (42) is rotated; the direction limiting block (432) is in the same direction as the second limiting groove (412); the anchor nail (431) is coaxial with the fixing sleeve (12); the direction limiting block (432) is in the same direction as the first limiting groove (411); and the anchor nail (431) is coaxial with the fixing hole A (11).

9. A chassis dust screen fixing device according to claim 8, characterized in that: A handle (421) is provided on the top of the sliding rod (42).

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