A computer motherboard expansion card anti-loosening fixing device

Abstract

This application discloses a computer motherboard expansion card anti-loosening fixing device, belonging to the field of expansion card installation. This fixing device is applied to a graphics card, a bracket fixed to one end of the graphics card, and a fixing component located at the other end of the graphics card. The fixing component includes a fixing claw, a movable claw, and a guide rod; a driving component located inside the guide rod; a fixing plate located on one side of the guide rod; a connecting rod fixed between the fixing plate and the guide rod; and a locking component located at the top of the guide rod. Through the design of the fixing component, driving component, fixing plate, and connecting rod, this application allows the graphics card to be placed at the top of the fixing claw at the end furthest from the bracket. Then, rotating a turntable causes the turntable to drive a screw to rotate, causing the movable claw to move vertically to the top of the bracket. The fixing claw and movable claw clamp the end of the graphics card, thus fixing the fixing plate to the chassis. This ensures that both ends of the graphics card are supported, preventing bending and damage under its own weight.

Description

Technical Field

[0001] This application relates to the field of expansion card installation technology, specifically a computer motherboard expansion card anti-loosening fixing device. Background Technology

[0002] A computer graphics card is a type of expansion card. The graphics card is connected to the motherboard slot through gold fingers, and then the bracket on one side of the graphics card is fixed to the computer case with bolts to complete the installation of the graphics card and the motherboard.

[0003] However, graphics cards are getting bigger and heavier. Using the above method, the end of the graphics card furthest from the backplate will sag under its own weight, generating continuous torque, which will cause friction damage between the gold fingers of the graphics card and the slot.

[0004] Therefore, this application provides a computer motherboard expansion card anti-loosening fixing device to solve the above-mentioned problems. Utility Model Content

[0005] This application provides a computer motherboard expansion card anti-loosening fixing device, which aims to solve the problems mentioned in the background art, such as the increasing size and weight of existing graphics cards, which, when using the above-mentioned methods, cause the end of the graphics card away from the bracket to sag under its own weight, generating continuous torque, resulting in friction damage between the gold fingers of the graphics card and the slot.

[0006] To achieve the above objectives, this application provides the following technical solution: a computer motherboard expansion card anti-loosening fixing device, applied to a graphics card and a baffle fixed at one end of the graphics card for connection with the chassis;

[0007] To facilitate support of the graphics card: a fixing component is provided at the other end of the graphics card to support it. The fixing component includes a fixing claw at the bottom of the graphics card to support it, a movable claw at the top of the graphics card to limit its movement, and a guide rod fixedly connected to the top of the fixing claw to guide the movement of the movable claw; a drive component inside the guide rod for adjusting the height of the movable claw; a fixing plate on the side of the guide rod away from the graphics card for connecting to the chassis; a connecting rod fixedly provided between the fixing plate and the guide rod for connecting the fixing plate and the guide rod; and a locking component at the top of the guide rod for locking the drive component. After fixing the baffle to the casing, place the end of the graphics card furthest from the baffle on the top of the fixing claw. Then, rotate the turntable, causing it to drive the screw to rotate, moving the movable claw vertically to the top of the baffle. This clamps the end of the graphics card between the fixing claw and the movable claw, thus securing the fixing plate to the casing. This ensures that both ends of the graphics card are supported, preventing bending or damage under its own weight. After the fixing claw and movable claw have clamped the graphics card, insert the plug into the... Inside the slot, the gantry is fixedly connected to the top of the guide rod. Under the action of the pawl, the ratchet is restricted to rotating in only one direction. The rotation of the ratchet will drive the turntable to rotate synchronously through the insert block. The turntable will then drive the screw to rotate. The screw is threadedly connected to the threaded hole, thus driving the movable pawl to move closer to the graphics card. However, the bottom of the movable pawl is tightly fitted with the top of the graphics card itself, so the movable pawl cannot move, and therefore the screw cannot rotate, maintaining the stability of the fixed pawl and the movable pawl in clamping the graphics card.

[0008] Preferably, to facilitate the adjustment of the movable claw's movement: the guide rod has a guide groove inside for the movable claw to slide through, the top of the movable claw has a threaded hole, and the driving component includes a screw rod inserted into the threaded hole, a turntable fixedly connected to the top of the screw rod for hand gripping, and a bearing sleeved on the outer wall of the screw rod to limit its movement. By rotating the screw rod, the movable claw is driven to move vertically up and down under the action of the screw rod meshing with the threaded hole.

[0009] Preferably, the top end of the guide groove has a first insertion hole for inserting the screw, and the bottom end of the guide groove has a circular groove for installing the bearing.

[0010] Preferably, to restrict the rotation of the turntable: the top of the turntable has a slot for engaging with the locking element. The locking element includes a block inserted into the slot, a ratchet fixedly connected to the top of the block for driving the block to rotate, a gantry fixedly connected to the top of the guide rod for mounting the ratchet, a mounting bolt inserted into the top of the gantry for mounting the ratchet to the gantry, and a pawl located on one side of the ratchet for restricting the ratchet's unidirectional rotation. By inserting the block into the slot, the ratchet and the pawl engage, restricting the turntable to rotate only in one direction.

[0011] Preferably, to maintain the connection between the insert block and the turntable: the shape of the insert block corresponds to the slot, the top of the gantry has a second insertion hole for inserting the mounting bolt, and the top of the ratchet has a threaded groove for threaded insertion of the mounting bolt. The insert block is thus held in place within the slot by the fixed connection between the gantry and the guide rod.

[0012] Preferably, to restrict unidirectional rotation of the ratchet: a spring for pushing the ratchet is provided on the side of the pawl away from the ratchet; a first mounting rod for mounting one end of the spring is fixedly connected to the inner wall of the gantry; the other end of the spring is fixedly connected to the outer wall of the pawl; and a second mounting rod for mounting the pawl is fixedly connected to the inner wall of the gantry. By pushing the pawl with the spring, one end of the pawl engages with the ratchet, restricting the ratchet to unidirectional rotation.

[0013] This application utilizes a design incorporating a fixing component, a driving component, a fixing plate, a connecting rod, and a locking component. After fixing the baffle to the chassis, the graphics card is placed at the top of the fixing claw with the end furthest from the baffle. The turntable is then rotated, causing the screw to rotate and moving the movable claw vertically to the top of the baffle. This clamps the end of the graphics card between the fixing claw and the movable claw. At this point, the fixing plate is fixedly installed to the chassis, ensuring that both ends of the graphics card are supported, preventing bending damage under its own weight. Once the fixing claw and movable claw are clamped, the insert block is inserted into the slot. The gantry is fixedly connected to the top of the guide rod. The ratchet wheel is restricted to unidirectional rotation by the pawl. The ratchet wheel's rotation drives the turntable to rotate synchronously via the insert block, which in turn drives the screw to rotate. The screw is threaded into the threaded hole, thus driving the movable claw to move closer to the graphics card. However, the bottom of the movable claw is tightly fitted to the top of the graphics card, preventing the movable claw from moving and the screw from rotating, thus maintaining the stability of the fixing claw and movable claw clamping the graphics card. Attached Figure Description

[0014] Figure 1 A schematic diagram of a computer motherboard expansion card anti-loosening fixing device;

[0015] Figure 2 for Figure 1 A schematic diagram of the structure of the fixing component and locking element;

[0016] Figure 3 for Figure 2 Schematic diagram of the structure of the fixed component;

[0017] Figure 4 for Figure 3 Schematic diagram of the moving claw in the middle;

[0018] Figure 5 for Figure 2 Schematic diagram of the locking component;

[0019] Figure 6 for Figure 5 A schematic diagram of the structure of the middle gantry and the pawl.

[0020] In the picture:

[0021] 1. Graphics card; 2. Baffle; 3. Fixing component; 31. Fixing claw; 32. Movable claw; 33. Guide rod; 4. Driving component; 41. Screw; 42. Turntable; 43. Bearing; 5. Fixing plate; 6. Connecting rod; 7. Locking component; 71. Insert block; 72. Ratchet; 73. Mast; 74. Mounting bolt; 75. Pawl; 76. Spring; 77. First mounting rod; 78. Second mounting rod. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] This embodiment provides a computer motherboard expansion card anti-loosening fixing device, such as... Figure 1-6 As shown, the fixing device is applied to the graphics card 1 and the baffle 2 is fixed to one end of the graphics card 1 for connection with the chassis;

[0024] To facilitate support for the graphics card 1: a fixing component 3 is provided at the other end of the graphics card 1 to support the graphics card 1. The fixing component 3 includes a fixing claw 31 at the bottom of the graphics card 1 to support the graphics card 1, a movable claw 32 at the top of the graphics card 1 to limit the shaking of the graphics card 1, and a guide rod 33 fixedly connected to the top of the fixing claw 31 to guide the movement of the movable claw 32; a drive component 4 is provided inside the guide rod 33 for adjusting the height of the movable claw 32; a fixing plate 5 is provided on the side of the guide rod 33 away from the graphics card 1 for connecting with the chassis; a connecting rod 6 is fixedly provided between the fixing plate 5 and the guide rod 33 for connecting the fixing plate 5 and the guide rod 33; and a locking component 7 is provided at the top of the guide rod 33 for locking the drive component 4. After fixing the baffle 2 to the chassis, place the end of the graphics card 1 furthest from the baffle 2 on the top of the fixing claw 31. Then, rotate the turntable 42, causing the screw 41 to rotate and move the movable claw 32 vertically to the top of the baffle 2. This clamps the end of the graphics card 1 between the fixing claw 31 and the movable claw 32. At this point, fix the fixing plate 5 to the chassis, ensuring that both ends of the graphics card 1 are supported, thus preventing the graphics card 1 from bending or being damaged under its own weight. After the fixing claw 31 and the movable claw 32 have clamped the graphics card, insert the insertion block 71 into the slot. Inside, the top of the gantry 73 is fixedly connected to the guide rod 33. Under the action of the pawl 75, the ratchet 72 is restricted to rotating only in one direction. The rotation of the ratchet 72 will drive the turntable 42 to rotate synchronously through the insert block 71. The turntable 42 will drive the screw 41 to rotate. The screw 41 is threadedly connected to the threaded hole, so it will drive the movable pawl 32 to move closer to the graphics card 1. However, the bottom of the movable pawl 32 is tightly attached to the top of the graphics card 1, so the movable pawl 32 cannot move, and thus the screw 41 cannot rotate, maintaining the stability of the fixed pawl 31 and the movable pawl 32 in clamping the graphics card 1.

[0025] Furthermore, the fixed connection between graphics card 1 and bracket 2 is existing technology in the current field.

[0026] Specifically, to facilitate the movement and adjustment of the movable claw 32: the guide rod 33 has a guide groove inside for the movable claw 32 to slide through, and the top of the movable claw 32 has a threaded hole. The driving component 4 includes a screw 41 inserted into the threaded hole, a turntable 42 fixedly connected to the top of the screw 41 for hand gripping, and a bearing 43 sleeved on the outer wall of the screw 41 to limit its movement. The top of the guide groove has a first insertion hole for the screw 41 to pass through, and the bottom of the guide groove has a circular groove for mounting the bearing 43. By rotating the screw 41, the movable claw 32 is driven to move vertically up and down under the action of the screw 41 meshing with the threaded hole. The width of the guide groove is matched with the width of the movable claw 32, so that when the screw 41 is rotated, the movable claw 32 cannot rotate under the restriction of the guide groove, thus moving vertically in the guide groove. The threads on the inner wall of the threaded hole mesh with the threads on the outer wall of the screw 41. The size of the circular groove is matched with the size of the bearing 43. The size of the first through hole is matched with the size of the screw 41. The turntable 42 is set outside the guide rod 33. The top end of the fixed claw 31 is fixedly bonded to the bottom end of the guide rod 33. The two ends of the connecting rod 6 are respectively bonded and fixed to the fixed plate 5 and the opposite side of the guide rod 33. The fixed plate 5 is fixedly connected to the machine housing by bolts.

[0027] Specifically, to restrict the rotation of the turntable 42: the top of the turntable 42 has a slot for engaging with the locking element 7. The locking element 7 includes a block 71 inserted into the slot, a ratchet 72 fixedly connected to the top of the block 71 for driving the block 71 to rotate, a gantry 73 fixedly connected to the top of the guide rod 33 for mounting the ratchet 72, a mounting bolt 74 inserted into the top of the gantry 73 for mounting the ratchet 72 to the gantry 73, and a pawl 75 located on one side of the ratchet 72 for restricting its unidirectional rotation. By inserting the block 71 into the slot, the ratchet 72 and the pawl 75 engage, restricting the turntable 42 to rotate only in one direction. The gantry 73 is fixedly connected to the top of the guide rod 33 by bolts, and the contact area between the block 71 and the ratchet 72 is bonded and fixed.

[0028] More specifically, to maintain the connection between the insert block 71 and the turntable 42: the shape of the insert block 71 corresponds to the slot; the top of the gantry 73 has a second through hole for inserting the mounting bolt 74; and the top of the ratchet 72 has a threaded groove for threaded insertion of the mounting bolt 74. The insert block 71 is held in place within the slot by the fixed connection between the gantry 73 and the guide rod 33. The shape and size of the slot correspond to the shape and size of the insert block 71, ensuring synchronous rotation between the insert block 71 and the turntable 42. The size of the second through hole matches the size of the mounting bolt 74. The second through hole has a smooth inner wall, and the inner thread of the threaded groove meshes with the outer thread of the mounting bolt 74. Thus, the mounting bolt 74 is simultaneously inserted into both the second through hole and the threaded groove, allowing the ratchet 72 to be mounted on the side of the gantry 73 facing the guide rod 33 and to rotate.

[0029] Furthermore, to limit the unidirectional rotation of the ratchet 72: a spring 76 for pushing the pawl 75 is provided on the side of the pawl 75 away from the ratchet 72; a first mounting rod 77 for mounting one end of the spring 76 is fixedly connected to the inner wall of the mast 73; the other end of the spring 76 is fixedly connected to the outer wall of the pawl 75; and a second mounting rod 78 for mounting the pawl 75 is fixedly connected to the inner wall of the mast 73. The spring 76 pushes the pawl 75, causing one end of the pawl 75 to engage with the ratchet 72, limiting the ratchet 72 to unidirectional rotation. The second mounting rod 78 and the first mounting rod 77 are bonded and fixed to the contact points with the mast 73. The second mounting rod 78 restricts the pawl 75 to rotate only, while the first mounting rod 77 compresses the spring 76, allowing the spring 76 to push the pawl 75.

[0030] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A computer motherboard expansion card anti-loosening fixing device, applied to a graphics card (1) and a baffle (2) fixed to one end of the graphics card (1) for connection with the chassis. Its features are: A fixing component (3) is provided at the other end of the graphics card (1) to support the graphics card (1). The fixing component (3) includes a fixing claw (31) provided at the bottom of the graphics card (1) to support the graphics card (1), a movable claw (32) provided at the top of the graphics card (1) to limit the shaking of the graphics card (1), and a guide rod (33) fixedly connected to the top of the fixing claw (31) for guiding the movement of the movable claw (32). A drive unit (4) for adjusting the height of the movable claw (32) is provided inside the guide rod (33); a fixing plate (5) for connecting to the machine body is provided on the side of the guide rod (33) away from the graphics card (1); a connecting rod (6) for connecting the fixing plate (5) and the guide rod (33) is fixedly provided between the fixing plate (5) and the guide rod (33); and a locking member (7) is provided at the top of the guide rod (33) for locking the drive unit (4).

2. The anti-loosening fixing device for computer motherboard expansion cards according to claim 1, characterized in that: The guide rod (33) has a guide groove inside for the sliding insertion of the movable claw (32). The top of the movable claw (32) has a threaded hole. The drive component (4) includes a screw (41) inserted inside the threaded hole, a turntable (42) fixedly connected to the top of the screw (41) for hand gripping, and a bearing (43) sleeved on the outer wall of the screw (41) to restrict the movement of the screw (41).

3. The anti-loosening fixing device for computer motherboard expansion cards according to claim 2, characterized in that: The top end of the guide groove is provided with a first insertion hole for inserting the screw (41), and the bottom end of the guide groove is provided with a circular groove for installing the bearing (43).

4. The anti-loosening fixing device for computer motherboard expansion cards according to claim 2, characterized in that: The top of the turntable (42) is provided with a slot for cooperating with the locking member (7). The locking member (7) includes a plug (71) inserted inside the slot, a ratchet (72) fixedly connected to the top of the plug (71) for driving the plug (71) to rotate, a gantry (73) fixedly connected to the top of the guide rod (33) for installing the ratchet (72), an installation bolt (74) inserted into the top of the gantry (73) for installing the ratchet (72) and the gantry (73), and a pawl (75) provided on one side of the ratchet (72) for restricting the unidirectional rotation of the ratchet (72).

5. The anti-loosening fixing device for computer motherboard expansion cards according to claim 4, characterized in that: The shape of the insert (71) corresponds to the slot, the top of the gantry (73) is provided with a second insertion hole for inserting the mounting bolt (74), and the top of the ratchet (72) is provided with a threaded groove for threaded insertion of the mounting bolt (74).

6. The anti-loosening fixing device for computer motherboard expansion cards according to claim 4, characterized in that: A spring (76) for pushing the pawl (75) is provided on the side away from the ratchet (72). A first mounting rod (77) for mounting one end of the spring (76) is fixedly connected to the inner wall of the gantry (73). The other end of the spring (76) is fixedly connected to the outer wall of the pawl (75). A second mounting rod (78) for mounting the pawl (75) is fixedly connected to the inner wall of the gantry (73).

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