A type of card pull-out device

Abstract

This utility model discloses a card pull-out device, belonging to the field of card technology. The contact surface cleaning component is located on the back of the contact surface cleaning transmission component, and is closer to the upper surface of the card block than the contact surface cleaning transmission component. In this way, when the screw needs to fix the card, the convex plate retracts the baffle into the receiving slot. As the baffle moves, it compresses the first spring. With the baffle no longer obstructing the flow, the screw's interface and opening are connected. The screw can then be inserted into the interface, thereby compressing the upper surface of the card and fixing it to the pull-out device. When the card needs to be removed, the screw is removed. Due to the elasticity of the first spring, the spring returns to its original position, pushing the baffle towards the opening, causing the baffle to re-close the opening. This prevents the screw's interface from being directly exposed to the outside, preventing external dust from entering the screw interface and affecting the threaded connection.

Description

Technical Field

[0001] This utility model relates to the field of circuit board technology, and specifically to a circuit board pull-out device. Background Technology

[0002] A circuit board is a type of printed circuit board that connects to the motherboard via a slot and is used to expand the functionality of a computer or test system.

[0003] In the prior art, in order to facilitate the quick installation, disassembly and maintenance of the circuit board, the circuit board is often used in conjunction with a pull-out device. The circuit board is inserted into the slot of the pull-out device, and the upper end of the circuit board is squeezed by the screw on the pull-out device to stabilize the circuit board.

[0004] However, after prolonged use, dust will accumulate on the contact surface between the circuit board and the card slot due to impurities in the air, which can easily lead to poor contact between the circuit board and the pull-out device, thus affecting the operation of the circuit board.

[0005] Based on this, the present invention designs a board pull-out device to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a board pull-out device.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A board pull-out device includes a pull-out device, a locking block, a screw, and a threaded hole, and also includes a threaded hole protection component, a contact surface cleaning transmission component, and a contact surface cleaning component; The card block is fixedly located on the lower end surface of the pull-out device, the threaded hole is opened on the upper end surface of the pull-out device, the screw is threadedly connected to the threaded hole, and the plate is slidably located at the lower end of the pull-out device. The card block is equipped with a thread hole protection component that can protect the threaded hole. The card block is equipped with a contact surface cleaning transmission component that can clean the contact surface between the card and the card block. The card block is equipped with a contact surface cleaning component that can clean the contact surface between the card and the card block; The threaded hole protection component and the contact surface cleaning transmission component are connected. The contact surface cleaning transmission component and the contact surface cleaning component are connected. The threaded hole protection component is located to the side of the contact surface cleaning transmission component. The threaded hole protection component is closer to the screw than the contact surface cleaning transmission component. The contact surface cleaning component is located on the back of the contact surface cleaning transmission component. The contact surface cleaning component is closer to the upper surface of the block than the contact surface cleaning transmission component.

[0008] Furthermore, the card block has an opening, a storage slot, and an inner groove inside. The opening is connected to a threaded hole, the storage slot is connected to the opening, and the inner groove is connected to the storage slot.

[0009] Furthermore, the threaded hole protection assembly includes a convex plate, a baffle, and a first spring. The baffle is slidably located inside the locking block, the first spring is fixedly disposed on one end surface of the baffle, and the convex plate is fixedly disposed on the outer surface of the other end of the baffle.

[0010] Furthermore, the inner wall surface of the storage groove is slidably connected to the outer surface of the baffle, the length of the baffle is greater than the length of the opening, and the first spring is located inside the storage groove.

[0011] Furthermore, the contact surface cleaning transmission assembly includes a guide rod, a first pinion, a first tooth block, a large gear, and a third pinion. The guide rod is fixedly mounted on the bottom surface of the baffle. The first pinion and the large gear are rotatably mounted on the inner wall of the inner groove. The first tooth block is fixedly mounted on the plane of the guide rod, and the third pinion is fixedly mounted on the outer surface of the large gear.

[0012] Furthermore, the first tooth block is meshed with the third pinion, and the first pinion is meshed with the large gear.

[0013] Furthermore, the contact surface cleaning assembly includes a second pinion, a brush plate, a sliding plate, a second toothed block, a second spring, and a slider. The second pinion is fixedly disposed on the outer surface of the first pinion, the sliding plate is slidably disposed on the inner wall surface of the block, the second toothed block is fixedly disposed on the upper surface of the sliding plate, the brush plate is slidably disposed on the surface of the sliding plate, the second spring is fixedly disposed between the brush plate and the sliding plate, and the slider is fixedly disposed on the back surface of the sliding plate.

[0014] Furthermore, the inner wall of the card block is provided with a sliding groove, and the inner wall surface of the sliding groove is in sliding connection with the outer surface of the slider. The second pinion is meshed with the second tooth block. The first pinion, the second pinion and the third pinion have the same diameter, and the diameter of the large gear is larger than the diameter of the first pinion, the second pinion and the third pinion.

[0015] Compared with the prior art, the advantages of this utility model are as follows: 1. When the screw needs to fix the board, the baffle is stored in the storage groove by the convex plate. When the baffle moves, it will squeeze the first spring. At this time, without the obstruction of the baffle, the interface and opening of the screw are connected. The screw can be inserted into the interface to squeeze the upper surface of the board, thereby fixing the board on the pull-out device. When the board needs to be removed, the screw is removed. Due to the elasticity of the first spring, the first spring reset will push the baffle to move towards the opening, so that the baffle closes the opening again, thereby preventing the interface of the screw from being directly exposed to the outside and preventing external dust from entering the screw interface and affecting the threaded connection. 2. When the baffle is stored in the storage slot, the movement of the baffle will drive the guide rod to move. Since the first tooth block is meshed with the third small gear, the movement of the guide rod will drive the large gear to rotate clockwise. The clockwise rotation of the large gear will drive the first small gear to rotate counterclockwise. The first small gear will drive the second small gear to rotate counterclockwise. The counterclockwise rotation of the second small gear will drive the second tooth block to move to the side through the meshing of the second small gear and the second tooth block, thereby driving the brush plate to move to the side. The brush on the surface of the brush plate will clean the dust on the contact surface between the card block and the card, so as to prevent the dust from affecting the use of the card. This cleaning component can clean the dust on the contact surface between the card block and the card block without removing the card, saving time and effort. 3. Because the diameters of the first, second, and third pinions are small, while the diameter of the large gear is large, the guide rod drives the third pinion to rotate once, which in turn drives the large gear to rotate once. Since the diameter of the large gear is larger than that of the first pinion, one rotation of the large gear will drive the first pinion to rotate multiple times. Therefore, when the guide rod moves a short distance, it will drive the brush plate to move a large distance, allowing the brush plate to thoroughly clean the dust on the contact surface between the card block and the card. Furthermore, because there is a second spring between the brush plate and the sliding plate, and the brush plate is slidably mounted on the surface of the sliding plate, when the brush wears down after prolonged use, the second spring will push the brush plate towards the top of the card, keeping the brush plate in contact with the top of the card and preventing the cleaning effect from deteriorating due to brush wear. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model; Figure 2This is a cross-sectional perspective view of the card block of this utility model; Figure 3 This is a cross-sectional perspective view of the threaded hole protection component of this utility model; Figure 4 This is a three-dimensional sectional view of the threaded hole protection component of this utility model from another perspective; Figure 5 This is a partial cross-sectional perspective view of the card block of this utility model; Figure 6 This is a three-dimensional schematic diagram of a partial cross-section of the card block of this utility model from another perspective; Figure 7 This is a three-dimensional schematic diagram of the threaded hole protection component of this utility model; Figure 8 This is a three-dimensional schematic diagram of the contact surface cleaning transmission assembly of this utility model; Figure 9 This is an exploded three-dimensional schematic diagram of the contact surface cleaning transmission assembly of this utility model; Figure 10 This is an exploded three-dimensional schematic diagram of the brush plate of this utility model.

[0018] The labels in the diagram represent: 1. Pull-out device; 2. Locking block; 3. Plate; 4. Screw; 5. Threaded hole protection assembly; 6. Contact surface cleaning transmission assembly; 7. Contact surface cleaning assembly; 8. Opening; 9. Storage slot; 10. Inner slot; 11. Sliding slot; 12. Protruding plate; 13. Baffle; 14. Guide rod; 15. First spring; 16. First pinion; 17. Second pinion; 18. First gear block; 19. Large gear; 20. Third pinion; 21. Brush plate; 22. Sliding plate; 23. Second gear block; 24. Second spring; 25. Slider; 26. Threaded hole. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] Example 1, please refer to the accompanying drawings in the specification. Figures 1-10 A board pull-out device includes a pull-out device 1, a card block 2, a screw 4 and a threaded hole 26, and also includes a threaded hole protection component 5, a contact surface cleaning transmission component 6 and a contact surface cleaning component 7; The card block 2 is fixedly located on the lower surface of the pull-out device 1, the threaded hole 26 is opened on the upper surface of the pull-out device 1, the screw 4 is threadedly connected to the threaded hole 26, and the plate card 3 is slidably located at the lower end of the pull-out device 1. The card block 2 is equipped with a thread hole protection component 5 that can protect the thread hole 26; Inside the card block 2 is a contact surface cleaning transmission assembly 6 that can clean the contact surface between the card 3 and the card block 2; The card block 2 is equipped with a contact surface cleaning component 7, which can clean the contact surface between the card 3 and the card block 2; The threaded hole protection component 5 is connected to the contact surface cleaning transmission component 6, and the contact surface cleaning transmission component 6 is connected to the contact surface cleaning component 7. The threaded hole protection component 5 is located on the side of the contact surface cleaning transmission component 6 and is closer to the screw 4 than the contact surface cleaning transmission component 6. The contact surface cleaning component 7 is located on the back of the contact surface cleaning transmission component 6 and is closer to the upper surface of the locking block 2 than the contact surface cleaning transmission component 6.

[0021] Based on Embodiment 1, the card block 2 has an opening 8, a storage slot 9 and an inner slot 10 inside. The opening 8 is connected to the threaded hole 26, the storage slot 9 is connected to the opening 8, and the inner slot 10 is connected to the storage slot 9.

[0022] The threaded hole protection assembly 5 includes a protruding plate 12, a baffle 13 and a first spring 15. The baffle 13 is slidably located inside the locking block 2, the first spring 15 is fixedly installed on one end surface of the baffle 13, and the protruding plate 12 is fixedly installed on the outer surface of the other end of the baffle 13.

[0023] The inner wall surface of the storage groove 9 is in sliding connection with the outer surface of the baffle 13. The length of the baffle 13 is greater than the length of the opening 8. The first spring 15 is located inside the storage groove 9.

[0024] The contact surface cleaning transmission assembly 6 includes a guide rod 14, a first pinion 16, a first tooth block 18, a large gear 19, and a third pinion 20. The guide rod 14 is fixedly mounted on the bottom surface of the baffle 13. The first pinion 16 and the large gear 19 are rotatably mounted on the inner wall of the inner groove 10. The first tooth block 18 is fixedly mounted on the plane of the guide rod 14, and the third pinion 20 is fixedly mounted on the outer surface of the large gear 19.

[0025] The first gear block 18 is meshed with the third pinion 20, and the first pinion 16 is meshed with the large gear 19.

[0026] The contact surface cleaning assembly 7 includes a second pinion 17, a brush plate 21, a sliding plate 22, a second toothed block 23, a second spring 24, and a slider 25. The second pinion 17 is fixedly disposed on the outer surface of the first pinion 16, the sliding plate 22 is slidably disposed on the inner wall surface of the block 2, the second toothed block 23 is fixedly disposed on the upper surface of the sliding plate 22, the brush plate 21 is slidably disposed on the surface of the sliding plate 22, the second spring 24 is fixedly disposed between the brush plate 21 and the sliding plate 22, and the slider 25 is fixedly disposed on the back surface of the sliding plate 22.

[0027] The inner wall of the card block 2 is provided with a sliding groove 11. The inner wall surface of the sliding groove 11 is in contact with the outer surface of the slider 25 and is in sliding connection. The second pinion 17 is meshed with the second tooth block 23. The diameters of the first pinion 16, the second pinion 17 and the third pinion 20 are the same, and the diameter of the large gear 19 is larger than the diameters of the first pinion 16, the second pinion 17 and the third pinion 20.

[0028] In actual use, when the screw 4 needs to fix the plate 3, the baffle 13 is stored in the storage groove 9 by the protruding plate 12. When the baffle 13 moves, it will squeeze the first spring 15. At this time, without the obstruction of the baffle 13, the interface of the screw 4 and the opening 8 are connected. The screw 4 can be inserted into the interface to squeeze the upper surface of the plate 3, thereby fixing the plate 3 on the pull-out device 1. When the plate 3 needs to be removed, the screw 4 is removed. Due to the elasticity of the first spring 15, the first spring 15 will return to its original position and push the baffle 13 to move towards the opening 8, so that the baffle 13 closes the opening 8 again, thereby preventing the interface of the screw 4 from being directly exposed to the outside and preventing external dust from entering the interface of the screw 4 and affecting the threaded connection. When the baffle 13 is stored in the storage slot 9, the movement of the baffle 13 will drive the guide rod 14 to move. Since the first tooth block 18 is meshed with the third pinion 20, the movement of the guide rod 14 will drive the large gear 19 to rotate clockwise. The clockwise rotation of the large gear 19 will drive the first pinion 16 to rotate counterclockwise. The first pinion 16 will drive the second pinion 17 to rotate counterclockwise. The counterclockwise rotation of the second pinion 17 will drive the second tooth block 23 to move to the side through the meshing of the second pinion 17 with the second tooth block 23, thereby driving the brush plate 21 to move to the side. The brush on the surface of the brush plate 21 will clean the dust on the contact surface between the card block 2 and the card 3, so as to prevent the dust from affecting the use of the card 3. This cleaning component can clean the dust on the contact surface between the card 3 and the card block 2 without removing the card 3, which saves time and effort. Because the diameters of the first pinion 16, the second pinion 17, and the third pinion 20 are small, while the diameter of the large gear 19 is large, the guide rod 14 drives the third pinion 20 to rotate once, which in turn drives the large gear 19 to rotate once. Since the diameter of the large gear 19 is larger than that of the first pinion 16, one rotation of the large gear 19 will drive the first pinion 16 to rotate multiple times. Therefore, when the guide rod 14 moves a short distance, it will drive the brush plate 21 to move a large distance, allowing the brush plate 21 to thoroughly clean the dust on the contact surface between the card block 2 and the card 3. Furthermore, because there is a second spring 24 between the brush plate 21 and the sliding plate 22, and the brush plate 21 is slidably mounted on the surface of the sliding plate 22, when the brush wears down after prolonged use, the second spring 24 will push the brush plate 21 towards the upper end of the card 3, keeping the brush plate 21 in contact with the upper end of the card 3 and preventing the cleaning effect from deteriorating due to brush wear.

[0029] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A board card pulling device, comprising a pulling device (1), a card block (2), a screw rod (4) and a threaded hole (26), characterized in that: It also includes a threaded hole protection assembly (5), a contact surface cleaning transmission assembly (6), and a contact surface cleaning assembly (7); The card block (2) is fixedly located on the lower surface of the pull-out device (1), the threaded hole (26) is opened on the upper surface of the pull-out device (1), the screw (4) is threadedly connected to the threaded hole (26), and the plate (3) is slidably located at the lower end of the pull-out device (1). The card block (2) is equipped with a thread hole protection component (5) that can protect the thread hole (26); The card block (2) is equipped with a contact surface cleaning transmission assembly (6) that can clean the contact surface between the card (3) and the card block (2) and drive it. The card block (2) is equipped with a contact surface cleaning component (7) that can clean the contact surface between the card (3) and the card block (2); The threaded hole protection assembly (5) is connected to the contact surface cleaning transmission assembly (6), and the contact surface cleaning transmission assembly (6) is connected to the contact surface cleaning assembly (7). The threaded hole protection assembly (5) is located on the side of the contact surface cleaning transmission assembly (6), and the threaded hole protection assembly (5) is closer to the screw (4) than the contact surface cleaning transmission assembly (6). The contact surface cleaning assembly (7) is located on the back of the contact surface cleaning transmission assembly (6), and the contact surface cleaning assembly (7) is closer to the upper surface of the locking block (2) than the contact surface cleaning transmission assembly (6).

2. The board card puller device of claim 1, wherein, The card block (2) has an opening (8), a storage slot (9) and an inner groove (10) inside. The opening (8) is connected to the threaded hole (26), the storage slot (9) is connected to the opening (8), and the inner groove (10) is connected to the storage slot (9).

3. The board card puller device of claim 2, wherein, The threaded hole protection assembly (5) includes a convex plate (12), a baffle (13) and a first spring (15). The baffle (13) is slidably located inside the locking block (2). The first spring (15) is fixedly disposed on one end surface of the baffle (13), and the convex plate (12) is fixedly disposed on the outer surface of the other end of the baffle (13).

4. The board card puller apparatus of claim 3, wherein, The inner wall surface of the storage groove (9) is in sliding connection with the outer surface of the baffle (13). The length of the baffle (13) is greater than the length of the opening (8). The first spring (15) is located inside the storage groove (9).

5. The board card puller apparatus of claim 4, wherein, The contact surface cleaning transmission assembly (6) includes a guide rod (14), a first pinion (16), a first tooth block (18), a large gear (19), and a third pinion (20). The guide rod (14) is fixedly mounted on the bottom surface of the baffle (13). The first pinion (16) and the large gear (19) are rotatably mounted on the inner wall of the inner groove (10). The first tooth block (18) is fixedly mounted on the plane of the guide rod (14). The third pinion (20) is fixedly mounted on the outer surface of the large gear (19).

6. The board card puller apparatus of claim 5, wherein, The first tooth block (18) is meshed with the third pinion (20), and the first pinion (16) is meshed with the large gear (19).

7. The board card puller device of claim 6, wherein, The contact surface cleaning assembly (7) includes a second pinion (17), a brush plate (21), a sliding plate (22), a second tooth block (23), a second spring (24), and a slider (25). The second pinion (17) is fixedly disposed on the outer surface of the first pinion (16). The sliding plate (22) is slidably disposed on the inner wall surface of the block (2). The second tooth block (23) is fixedly disposed on the upper surface of the sliding plate (22). The brush plate (21) is slidably disposed on the surface of the sliding plate (22). The second spring (24) is fixedly disposed between the brush plate (21) and the sliding plate (22). The slider (25) is fixedly disposed on the back surface of the sliding plate (22).

8. The board card puller apparatus of claim 7, wherein, The inner wall of the card block (2) is provided with a sliding groove (11). The inner wall surface of the sliding groove (11) is in contact with the outer surface of the slider (25) and is in sliding connection. The second pinion (17) is meshed with the second tooth block (23). The diameters of the first pinion (16), the second pinion (17) and the third pinion (20) are the same. The diameter of the large gear (19) is greater than the diameters of the first pinion (16), the second pinion (17) and the third pinion (20).

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