Board card fixing device

Abstract

The utility model provides a board card fixing device. The board card fixing device comprises a fixing support, a board card support and a wrench, wherein the board card support is assembled on the fixing support in a sliding mode in the first direction, and the wrench is hinged to the board card support. The head of the wrench is provided with an inner jaw, an outer jaw and a jaw opening, the inner jaw and the outer jaw are arranged at an interval, the jaw opening is defined by the inner jaw and the outer jaw, the fixing support protrudes towards the wrench to form a clamping part matched with the jaw opening, and the plate clamping support is further provided with a limiting part; when the wrench rotates around the hinge shaft to a first position, the opening direction of the jaw opening is opposite to and parallel to the protruding direction of the clamping part, and in the first direction, the projection of the jaw opening and the projection of the clamping part are at least partially overlapped; when the wrench rotates around the hinge shaft to a second position, an included angle is formed between the opening direction of the jaw opening and the protruding direction of the clamping part, the side, away from the inner jaw, of the outer jaw abuts against the limiting part, and in the first direction, the projection of the clamping part is between the projection of the inner jaw and the projection of the outer jaw. And the wrench rotates around the hinge shaft, so that the locking of the board card bracket is skillfully completed, and the reliability of the device is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hot-plug equipment, and in particular relates to a board card fixing device. Background Art

[0002] A board (also called an expansion card or adapter card) refers to a printed circuit board that is inserted into a computer or other electronic device. In the related art, a board fixture can be electrically connected to an electronic device through a port, and the board is placed in a board bracket of the board fixture. The board bracket can be pushed and pulled to be connected to a fixing bracket of the board fixture. Usually, a handle is provided on the board fixture for easy pushing and pulling. However, since traditional board fixtures lack a limiting structure, it is impossible to quickly confirm whether the board is properly plugged into the connection port inside the electronic device, and it is easy to damage the board and the connection port on the electronic device due to excessive plugging. Such board fixtures have low reliability. Utility Model Content

[0003] The technical purpose of the utility model is to provide a board fixing device, aiming to solve the problem that the traditional board fixing device has no limit and the connection port of the board is easy to damage.

[0004] To solve the above technical problems, the utility model is implemented as follows: a board fixing device comprises: a fixing bracket, a board bracket slidably assembled on the fixing bracket along a first direction, and a wrench hinged on the board bracket;

[0005] The head of the wrench has an inner jaw and an outer jaw which are arranged at intervals, and a jaw opening formed by the inner jaw and the outer jaw. The fixing bracket protrudes toward the wrench and has a clamping portion matching the jaw opening. The plate clamp bracket is also provided with a limiting portion.

[0006] When the wrench rotates around the hinge axis to a first position, the opening direction of the jaw is opposite to and parallel to the protruding direction of the clamping portion, and along the first direction, the projection of the jaw at least partially overlaps with the projection of the clamping portion;

[0007] When the wrench rotates to the second position around the hinge axis, the opening direction of the jaw forms an angle with the protruding direction of the clamping portion, the side of the outer jaw facing away from the inner jaw abuts against the limiting portion, and along the first direction, the projection of the clamping portion is between the projections of the inner jaw and the outer jaw.

[0008] Further, when the board bracket slides along the first direction to the third position of the fixing bracket, the board bracket is accommodated in the fixing bracket, the wrench rotates around the hinge shaft to the first position, and the jaw is clamped to the clamping portion.

[0009] Furthermore, the fixed bracket is provided with a receiving groove, the board bracket is slidably assembled in the receiving groove along the first direction, the slot of the receiving groove is provided with the clamping portion, and the clamping portion protrudes from the slot wall of the receiving groove parallel to the first direction, and the wrench is provided at one end of the board bracket away from the first direction.

[0010] Furthermore, a baffle is provided at one end of the board bracket away from the first direction, and the wrench is provided on one end of the board bracket close to the baffle; a through slot is provided on the baffle, and the tail of the wrench extends out of the board bracket through the through slot.

[0011] Furthermore, an elastic member is connected between the wrench and the board bracket, and the elastic member is used to provide a restoring force for rotating the wrench around the hinge axis from the second position to the first position.

[0012] Furthermore, the elastic member is a torsion spring, one end of the torsion spring is connected to the wrench, the other end of the torsion spring is connected to the board bracket, and the torsion axis of the torsion spring coincides with the hinge axis of the wrench.

[0013] Furthermore, the board fixing device also includes a spring screw detachably connected between the board bracket and the fixing bracket.

[0014] Furthermore, the length extension directions of the head portion of the wrench and the tail portion of the wrench form an angle, and the jaw is opened on a side of the head portion of the wrench away from the tail portion of the wrench.

[0015] Furthermore, the length of the outer jaw is greater than the length of the inner jaw.

[0016] Furthermore, at least one board bracket is provided in the board fixing device, and the sliding directions of the board brackets assembled on the fixing bracket are the same.

[0017] Compared with the prior art, the board card fixing device in the utility model has the following beneficial effects:

[0018] (1) Compared with the traditional board and card fixing device, the wrench hinged to the board and card bracket of the utility model is not only convenient for the user to hold, but also can cleverly complete the locking of the board and card bracket by rotating the wrench around the hinge axis. When the board and card bracket is not fully inserted into the fixed bracket, the user first rotates the wrench around the hinge axis to the second position, with the opening of the jaw of the wrench facing the clamping part on the fixed bracket, slides the board and card bracket along the first direction, and at the same time rotates the wrench around the hinge axis to the first position, so that the jaw is clamped on the clamping part, the board and card bracket is locked and will not continue to slide, thus realizing the insertion and removal positioning of the board and card bracket;

[0019] (2) Moreover, a limiting portion is provided on the board card bracket of the present utility model, so that when the wrench rotates around the hinge axis to the second position, it can abut against the limiting portion, effectively limiting the rotation stroke of the wrench around the hinge axis and improving the reliability of the board card fixing device. Description of the Drawings

[0020] Figure 1 is a schematic diagram of the overall structure of the board card fixing device in an embodiment of the present utility model;

[0021] Figure 2 is a top view of the interior of the board card fixing device in some embodiments of the present utility model;

[0022] Figure 3 is a cross-sectional view of a partial structure of the board card fixing device in some embodiments of the present utility model;

[0023] Figure 4 is Figure 3 an enlarged view of detail A in;

[0024] Figure 5 is Figure 3 an enlarged view of detail B in;

[0025] Figure 6 is an exploded view of a partial structure in the board card fixing device in some embodiments of the present utility model: wrench, hinge axis, gasket, and torsion spring.

[0026] In the drawings, each reference numeral represents:

[0027] 10, fixed bracket; 11, clamping portion; 12, sliding track;

[0028] 20, board card bracket; 21, limiting portion; 22, baffle; 23, hinge axis; 24, gasket; 25, torsion spring;

[0029] 30, wrench; 31, head; 311, inner jaw; 312, outer jaw; 313, jaw opening; 32, tail;

[0030] 40, spring screw. Detailed Embodiment

[0031] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] Example:

[0035] See also Figures 1 to 6 , Figures 2 to 3 The arrow direction indicated in the figure is the first direction in which the board bracket 20 is slidably assembled on the fixing bracket 10 .

[0036] In this embodiment, a board fixing device includes: a fixing bracket 10, a board bracket 20 slidably assembled on the fixing bracket 10 along a first direction, and a wrench 30 hinged on the board bracket 20;

[0037] The head 31 of the wrench 30 has an inner jaw 311 and an outer jaw 312 arranged at intervals, and a jaw opening 313 formed by the inner jaw 311 and the outer jaw 312. The fixing bracket 10 has a clamping portion 11 protruding toward the wrench 30 and matching the jaw opening 313. The board bracket 20 is also provided with a limiting portion 21.

[0038] When the wrench 30 rotates around the hinge shaft 23 to the first position, the opening direction of the jaw 313 is opposite to and parallel to the protruding direction of the clamping portion 11, and along the first direction, the projection of the jaw 313 at least partially overlaps with the projection of the clamping portion 11;

[0039] When the wrench 30 rotates to the second position around the hinge shaft 23, the opening direction of the jaw 313 forms an angle with the protruding direction of the clamping portion 11, and the side of the outer jaw 312 facing away from the inner jaw 311 abuts against the limiting portion 21. Along the first direction, the projection of the clamping portion 11 is between the projections of the inner jaw 311 and the outer jaw 312.

[0040] As an example, Figure 4As shown, when the wrench 30 rotates around the hinge axis 23 to the second position, the opening direction of the jaw 313 forms an angle with the protruding direction of the clamping portion 11. The side of the outer jaw 312 facing away from the inner jaw 311 abuts against the limiting portion 21. Along the first direction, the projection of the clamping portion 11 is between the projections of the inner jaw 311 and the outer jaw 312. At this time, when the board holder 20 slides along the first direction, the clamping portion 11 will not block the outer jaw 312. When the jaw 313 contacts the clamping portion 11, gradually rotate the wrench 30 around the hinge axis 23 to the first position, which can make the jaw 313 engage with the clamping portion 11. For the state after the engagement is in place, please refer to Figure 5 . Define the position where the board holder 20 slides to the fixed bracket 10 at this time as the third position, and define as Figure 4 shown, the position where the board holder 20 is not fully inserted into the fixed bracket 10 is the fourth position.

[0041] It can be understood that when the board holder 20 slides along the first direction to the third position of the fixed bracket 10, the board holder 20 is received in the fixed bracket 10, the wrench 30 rotates around the hinge axis 23 to the first position, and the jaw 313 engages with the clamping portion 11. When the board holder 20 slides to the fourth position of the fixed bracket 10, the board holder 20 is partially received in the fixed bracket 10, and the board loaded on the board holder 20 can be taken out.

[0042] When the board holder 20 is in the fourth position of the fixed bracket 10, the wrench 30 can also rotate around the hinge axis 23 to the first position. And because the board holder 20 is provided with the limiting portion 21, when the wrench 30 rotates around the hinge axis 23 to the second position, it abuts against the limiting portion 21, restricting the rotation stroke of the wrench 30 around the hinge axis 23.

[0043] The board holder 20 can load a board. Compared with the traditional board fixing device, the wrench 30 hinged to the board holder 20 is not only convenient for the user to hold, but also can cleverly lock the board holder 20 by rotating the wrench 30 around the hinge axis 23. With the structure of the wrench 30, the board module can be easily locked, driving the board to be fully connected to the port inside the electronic device, ensuring the high-precision connection requirement between the board and the electronic device and also guaranteeing the reliability of the product. It will not cause damage to the interface due to directly pushing or pulling the board, greatly improving the reliability of the board fixing device.

[0044] In addition, as Figure 4 and 5 shown, in this embodiment, the limiting portion 21 is a limiting protrusion protruding from the surface of the board holder 20. In other embodiments, the limiting portion 21 can also be a limiting structure in the shape of a cuboid, a sheet or other shapes, and is not limited to the columnar limiting protrusion provided in this embodiment.

[0045] Specifically, in some embodiments, the fixed bracket 10 is provided with a receiving groove, and the board bracket 20 is slidably assembled in the receiving groove along the first direction. The slot of the receiving groove is provided with a clamping portion 11, and the clamping portion 11 protrudes from the slot wall on the receiving groove parallel to the first direction, and the wrench 30 is arranged on the end of the board bracket 20 that is away from the first direction.

[0046] like Figure 2 As shown, a plurality of sliding rails 12 are arranged in the receiving groove, and the length extension direction of the sliding rails 12 is parallel to the first direction, and the board bracket 20 is assembled on the sliding rails 12; the board bracket 20 and the fixed bracket 10 are enclosed to form a receiving space, and the wrench 30 is arranged in the receiving space. The sliding rails 12 are arranged on the groove wall of the receiving groove parallel to the first direction, and the sliding rails 12 are symmetrically arranged on both sides of the board bracket 20.

[0047] like Figure 4 and Figure 5 As shown, in some embodiments, the length extension directions of the head 31 of the wrench 30 and the tail 32 of the wrench 30 form an angle, and the jaw 313 is opened on the side of the head 31 of the wrench 30 away from the tail 32 of the wrench 30.

[0048] Preferably, the length extension directions of the head portion 31 of the wrench 30 and the tail portion 32 of the wrench 30 are perpendicular.

[0049] When the wrench 30 rotates around the hinge shaft 23 to the first position, the opening direction of the jaw 313 is opposite to and parallel to the protruding direction of the clamping portion 11. Since the length extension directions of the head 31 of the wrench 30 and the tail 32 of the wrench 30 are perpendicular, the length extension direction of the tail 32 of the wrench 30 is opposite to and parallel to the opening direction of the jaw 313. In other words, Figure 5 As shown, when the wrench 30 rotates around the hinge shaft 23 to the first position, the tail 32 of the wrench 30 can be set in the board fixing device in a retracted state. Compared with the U-shaped push-pull handle in the traditional board fixing device, the wrench 30 in this embodiment occupies less space and is more streamlined and convenient.

[0050] Preferably, Figure 4 and 5 As shown, the length of the outer jaw 312 is greater than the length of the inner jaw 311 . This configuration enables the jaw opening 313 to be more stably engaged with the engaging portion 11 .

[0051] Furthermore, if Figure 2 As shown, a baffle 22 is provided at one end of the board bracket 20 away from the first direction, and a wrench 30 is provided on one end of the board bracket 20 close to the baffle 22; a through slot is opened on the baffle 22, and a tail 32 of the wrench 30 extends out of the board bracket 20 through the through slot.

[0052] The baffle 22 has a protective effect on the inside of the board card bracket 20, reducing the entry of dust and impurities into the board card bracket 20. Only a part of the wrench 30 extends out of the board card bracket 20, which can also skillfully reduce the space occupied by the wrench 30.

[0053] Preferably, as Figure 5 shown, when the wrench 30 rotates around the hinge axis 23 to the first position, the side of the head 31 of the wrench 30 facing away from the jaw 313 abuts against the groove wall of the through groove. At this time, the through groove can limit the rotation angle of the wrench 30. In this embodiment, through the limiting portion 21 and the through groove on the board card bracket 20, the rotation stroke of the wrench 30 around the hinge axis 23 is limited between the first position and the second position where the wrench 30 rotates in a clockwise direction around the hinge axis 23. The groove wall of the through groove also further improves the stability of the jaw 313 being clamped to the clamping portion 11.

[0054] Preferably, when the jaw 313 is clamped to the clamping portion 11 and the board card bracket 20 is fully inserted into the fixed bracket 10, that is, when the board card bracket 20 slides to the third position of the fixed bracket 10, the baffle 22 abuts against the fixed bracket 10. Specifically, in some embodiments, the fixed bracket 10 is provided with a receiving groove, the board card bracket 20 is slidably assembled in the receiving groove along the first direction, and the baffle 22 can abut against the outer edge of the notch of the receiving groove to prevent the board card bracket 20 from continuing to slide along the first direction, realizing the limit of the insertion.

[0055] In some embodiments, an elastic member is connected between the wrench 30 and the board card bracket 20, and the elastic member is used to provide a restoring force for the wrench 30 to rotate around the hinge axis 23 from the second position to the first position.

[0056] As Figure 4 shown, when the board card bracket 20 is not fully inserted into the fixed bracket 10, that is, when the board card bracket 20 slides to the fourth position of the fixed bracket 10, due to the restoring force provided by the elastic member to the wrench 30, in the state where the user does not apply force to the wrench 30, the wrench 30 is in the first position, and the user needs to provide a force for the wrench 30 to rotate from the first position to the second position in order to make the wrench 30 rotate around the hinge axis 23 to the second position.

[0057] As Figure 4 shown, when the board card bracket 20 is fully inserted into the fixed bracket 10, that is, when the board card bracket 20 slides to the third position of the fixed bracket 10, the jaw 313 of the wrench 30 is clamped to the clamping portion 11. Due to the restoring force provided by the elastic member to the wrench 30 to rotate around the hinge axis 23 from the second position to the first position, the jaw 313 can be stably clamped in the clamping portion 11. If the board card bracket 20 needs to be pulled out of the fixed bracket 10, the user needs to provide a force for the wrench 30 to rotate from the first position to the second position and at the same time pull the wrench 30.

[0058] With such a setting, on the one hand, when the board card bracket 20 is fully inserted into the fixed bracket 10, the restoring force provided by the elastic member ensures the firm connection between the jaw 313 of the wrench 30 and the clamping member, avoiding accidental loosening between the wrench 30 and the clamping member, thereby enhancing the stability of the board card fixing device;

[0059] On the other hand, when the user needs to pull out the board card bracket 20, the user needs to simultaneously perform the action of applying force to rotate the wrench 30 from the first position to the second position and the action of pulling the wrench 30. This design ensures the controllability and accuracy of the operation process. Compared with the traditional board card fixing device in which the board card bracket 20 is pulled out only by pulling, the board card fixing device in this embodiment reduces the risk of misoperation and damage to the socket of the board card bracket 20;

[0060] In addition, when the board card bracket 20 is not inserted into the fixed bracket 10, the restoring force provided by the elastic member enables the wrench 30 to be in the first position, avoiding the unrestricted movement of the wrench 30 in the cross-sectional direction of the hinge shaft 23, reducing the number of times the wrench 30 collides with the board card bracket 20 and generating friction, and increasing the service life of the board card bracket 20.

[0061] Preferably, as Figure 6 shown, the elastic member is a torsion spring 25. One end foot of the torsion spring 25 is connected to the wrench 30, and the other end foot of the torsion spring 25 is connected to the board card bracket 20. The torsion axis of the torsion spring 25 coincides with the hinge axis 23 of the wrench 30.

[0062] It can be understood that the elastic member can not only be a torsion spring 25, but also a spring or other parts with elastic structures. For example: in some other embodiments, the two feet of the spring can also be respectively fixed to the limiting part 21 and the outer jaw 312 of the wrench 30, and when the wrench 30 rotates around the hinge axis 23 to the first position, the spring is in its original state, and when the wrench 30 rotates from the first position to the second position around the hinge axis 23, the spring is in a compressed state. Such a setting can also provide a restoring force for the wrench 30 to rotate around the hinge axis 23 from the second position to the first position.

[0063] Preferably, in one embodiment, as Figure 5 shown, the board card fixing device includes a wrench 30 assembly. The wrench 30 assembly includes a wrench 30, a hinge axis 23, a gasket 24, and a torsion spring 25. Between the board card bracket 20 and the hinge axis 23, the gasket 24, the wrench 30, and the torsion spring 25 are connected in sequence. The gasket 24 can reduce the friction between the wrench 30 and the board card bracket 20, increase the service life of the wrench 30 and the board card bracket 20, and improve the reliability of the board card fixing device.

[0064] Furthermore, as Figure 2As shown, the board fixing device further includes a spring screw detachably connected between the board bracket 20 and the fixing bracket 10.

[0065] The spring screw is also called a non-loosening screw. By connecting the board bracket 20 and the fixing bracket 10 with the spring screw, the replacement of the board bracket 20 can be achieved without disassembling the whole machine.

[0066] In some embodiments, as Figure 1 shown, at least one board bracket 20 is provided in the board fixing device, and the sliding directions of the board brackets 20 assembled to the fixing bracket 10 are the same.

[0067] The board fixing device is not limited to only one board bracket 20, and multiple board brackets 20 can be evenly spaced and assembled in the fixing bracket 10.

[0068] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A board fixing device, characterized in that: include: A fixed bracket, a board bracket slidably assembled on the fixed bracket along a first direction, and a wrench hinged on the board bracket; The head of the wrench has an inner jaw and an outer jaw which are arranged at intervals, and a jaw opening formed by the inner jaw and the outer jaw. The fixing bracket protrudes toward the wrench and has a clamping portion matching the jaw opening. The plate clamp bracket is also provided with a limiting portion. When the wrench rotates around the hinge axis to a first position, the opening direction of the jaw is opposite to and parallel to the protruding direction of the clamping portion, and along the first direction, the projection of the jaw at least partially overlaps with the projection of the clamping portion; When the wrench rotates to the second position around the hinge axis, the opening direction of the jaw forms an angle with the protruding direction of the clamping portion, the side of the outer jaw facing away from the inner jaw abuts against the limiting portion, and along the first direction, the projection of the clamping portion is between the projections of the inner jaw and the outer jaw.

2. The board fixing device according to claim 1, characterized in that: When the board bracket slides along the first direction to the third position of the fixing bracket, the board bracket is accommodated in the fixing bracket, the wrench rotates around the hinge shaft to the first position, and the jaw is clamped on the clamping portion.

3. The board fixing device according to claim 2, characterized in that: The fixing bracket is provided with a receiving groove, the board bracket is slidably assembled in the receiving groove along a first direction, the notch of the receiving groove is provided with the clamping portion, and the clamping portion protrudes from the groove wall of the receiving groove parallel to the first direction, and the wrench is provided on the end of the board bracket away from the first direction.

4. The board fixing device according to claim 3, characterized in that: A baffle is provided at one end of the board bracket away from the first direction, and the wrench is provided on one end of the board bracket close to the baffle; a through slot is provided on the baffle, and the tail of the wrench extends out of the board bracket through the through slot.

5. The board fixing device according to claim 1, characterized in that: An elastic member is connected between the wrench and the board bracket, and the elastic member is used to provide a restoring force for rotating the wrench around the hinge axis from the second position to the first position.

6. The board fixing device according to claim 5, characterized in that: The elastic member is a torsion spring, one end of the torsion spring is connected to the wrench, the other end of the torsion spring is connected to the board bracket, and the torsion axis of the torsion spring coincides with the hinge axis of the wrench.

7. The board fixing device according to any one of claims 1 to 6, characterized in that: The board fixing device also includes a spring screw detachably connected between the board bracket and the fixing bracket.

8. The board fixing device according to any one of claims 1 to 6, characterized in that: The length extension directions of the head of the wrench and the tail of the wrench form an angle, and the jaw is opened on a side of the head of the wrench away from the tail of the wrench.

9. The board fixing device according to any one of claims 1 to 6, characterized in that: The length of the outer jaw is greater than the length of the inner jaw.

10. The board fixing device according to any one of claims 1 to 6, characterized in that: At least one board bracket is disposed in the board fixing device, and each board bracket is assembled on the fixing bracket in the same sliding direction.

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