Fixing device

Abstract

The utility model discloses a fixing device, which comprises a limiting piece, and the limiting piece is fixedly connected with a printed circuit board (PCB). The limiting piece is fixedly arranged on the connecting plate on one side of the base, and the PCB is arranged above the limiting piece in a covering mode. At least one limiting through hole is formed in the PCB, and two flanges protruding and extending towards the center of the limiting through hole are arranged in the limiting through hole. And a gap is formed between the two flanges. The limiting piece comprises a limiting body and a limiting protrusion perpendicularly connected with the limiting body. The limiting bulges are in one-to-one correspondence with the limiting through holes; the side, away from the connecting plate, of the limiting piece is horizontally bent. And at least one limiting bulge is inserted into the corresponding limiting through hole in the PCB, so that the PCB is horizontally assembled on the base, and the overall stability of the PCB is greatly improved by inserting the limiting piece into the limiting through hole in one side of the PCB.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial manufacturing, in particular to a fixing device. Background Art

[0002] With the continuous development of technology in the electronic communication industry, communication equipment has gradually appeared in the public's field of vision. For some wired communication equipment, people have developed a fixing base for the PCB board built into the communication equipment. Since the overall effect of the combination and fixing of the hardware shell and the PCB board is low during the installation of the PCB board by the existing hardware shell, the PCB board cannot be fixed horizontally to the metal device shell. As a result, after the PCB board is assembled, the mounting holes of the PCB board cannot be engaged with the metal device shell, causing the PCB board to easily move up and down on the back of the device shell. When the PCB board is electrically connected and controlled, circuit faults are likely to occur, thereby affecting the normal use of the communication equipment. The existing fixing devices on the market currently have the problem of low PCB board installation stability during the installation of the PCB board. Utility Model Content

[0003] The utility model discloses a fixing device, which aims to overcome the problem of low stability of PCB board installation during the process of assembling the PCB board and the base.

[0004] The utility model provides a fixing device, wherein the fixing device comprises a limiting member, and the limiting member is fixedly connected to a PCB board;

[0005] The limiting member is fixedly arranged on a connecting plate at one side of the base, and the PCB board is arranged to cover the limiting member;

[0006] At least one limiting through hole is provided on the PCB board, and two flanges are provided in the limiting through hole and protrude toward the center of the limiting through hole; and a gap is provided between the two flanges;

[0007] The limiting member includes a limiting body and a limiting protrusion vertically connected to the limiting body; the limiting protrusion corresponds to the limiting through hole one by one;

[0008] The limiting member is horizontally bent toward a side away from the connecting plate;

[0009] At least one of the limiting protrusions is plugged into a corresponding limiting through hole on the PCB board, so that the PCB board is horizontally assembled on the base.

[0010] A fixing device, wherein the mounting hole arranged on the PCB board corresponds to the connecting through hole arranged on one side of the limiting member.

[0011] A fixing device, wherein the height range of the limiting protrusion is 4.25 to 4.45 cm.

[0012] A fixing device, wherein the end of the limiting protrusion is a semicircular structure.

[0013] A fixing device, wherein the width of the limiting protrusion is not greater than the width of the limiting through hole.

[0014] A fixing device, wherein an arc-shaped connecting piece is provided on one side of the connecting plate, the end of the arc-shaped connecting piece is an arc-shaped surface, one end of the arc-shaped connecting piece is fixedly connected to the connecting plate, and the other end of the arc-shaped connecting piece is fixedly connected to the limiting piece.

[0015] A fixing device, wherein the PCB board is further provided with a plurality of mounting holes, and the diameter of each mounting hole ranges from 0.5 to 0.7 cm.

[0016] A fixing device, wherein the two flanges are arranged opposite to each other.

[0017] A fixing device, wherein two limiting through holes are arranged on the PCB board.

[0018] A fixing device, wherein at least two limiting members are arranged on one side of the connecting plate.

[0019] Compared with the prior art, the utility model has the following advantages:

[0020] The utility model discloses a fixing device, the fixing device comprises a limiting member, the limiting member is fixedly connected with a PCB board; the limiting member is fixedly arranged on a connecting plate at one side of a base, and the PCB board is covered and arranged above the limiting member; at least one limiting through hole is arranged on the PCB board, two flanges protruding and extending toward the center of the limiting through hole are arranged in the limiting through hole; and a gap is arranged between the two flanges; the limiting member comprises a limiting body and a limiting protrusion vertically connected to the limiting body; the limiting protrusion corresponds to the limiting through hole one by one; the limiting member is horizontally bent toward a side away from the connecting plate; at least one limiting protrusion is plugged into the corresponding limiting through hole on the PCB board, so that the PCB board is horizontally assembled on the base. In this arrangement, the stability of the PCB board as a whole is greatly increased by plugging the limiting member into the limiting through hole on one side of the PCB board. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A partial structural diagram of a position-limiting member in a fixing device provided in an embodiment of the utility model;

[0023] Figure 2 A structural diagram of a PCB board in a fixing device provided in an embodiment of the utility model;

[0024] Figure 3 The overall structure diagram of a PCB board and a stopper in a fixing device provided in an embodiment of the utility model after being combined;

[0025] Figure 4 This is an overall structural diagram of a base in a fixing device provided in an embodiment of the utility model.

[0026] PCB board 1, connecting plate 2, limiting piece 3, limiting body 4, limiting protrusion 5, limiting through hole 6, mounting hole 7, arc-shaped connecting piece 8, connecting through hole 9, flange 10. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0029] It should also be understood that the terms used in the utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in the utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0030] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0031] See also Figure 1 , Figure 2 as well as Figure 3 As shown in the figure, the utility model provides a fixing device, wherein the fixing device includes a limit member 3, and the limit member 3 is fixedly connected to the PCB board 1.

[0032] The limiting member 3 is fixedly arranged on the connecting plate 2 on one side of the base (not marked in the figure), and the PCB board 1 is arranged to cover the top of the limiting member 3; at least one limiting through hole 6 is provided on the PCB board 1, and two flanges 10 protruding and extending toward the center of the limiting through hole 6 are provided in the limiting through hole 6; and a gap is provided between the two flanges 10; the limiting member 3 includes a limiting body 4 and a limiting protrusion 5 vertically connected to the limiting body 4; the limiting protrusion 5 corresponds to the limiting through hole 6 one by one; the limiting member 3 is horizontally bent toward the side away from the connecting plate 2; at least one limiting protrusion 5 is inserted into the corresponding limiting through hole 6 on the PCB board 1, so that the PCB board 1 can be horizontally assembled on the base (not marked in the figure).

[0033] Specifically, the fixing device includes a limit member 3, and the limit member 3 is fixedly connected to the PCB board 1; the limit member 3 is fixedly arranged on the connecting plate 2 on one side of the base, and the PCB board 1 is arranged to cover the limit member 3; at least one limit through hole 6 is provided on the PCB board 1, and two flanges 10 protruding and extending toward the center of the limit through hole 6 are provided in the limit through hole 6; and a gap is provided between the two flanges 10; the limit member 3 includes a limit body 4 and a limit protrusion 5 vertically connected to the limit body 4; the limit protrusion 5 corresponds to the limit through hole 6 one by one In one embodiment, the base is composed of four connecting plates 2 and a bottom plate. The four connecting plates 2 are interconnected to form an annular enclosure. The limiting piece 3 arranged on one side of the connecting plate 2 is bent, and the limiting protrusion 5 arranged at the end of the limiting piece 3 corresponds to the limiting through hole 6 on the PCB board 1 one by one. When the PCB board 1 needs to be assembled, it is only necessary to align the limiting through hole 6 on the PCB board 1 with the limiting protrusion 5 so that the PCB board 1 can be horizontally assembled at the opening of the base. This arrangement prevents the PCB board 1 from moving up and down after assembly, thereby improving the stability of the overall installation between the PCB board 1 and the base.

[0034] Furthermore, the limiting member 3 is horizontally bent toward the side away from the connecting plate 2; at least one of the limiting protrusions 5 is inserted into the corresponding limiting through hole 6 on the PCB board 1, so that the PCB board 1 is horizontally assembled on the base. In one embodiment, the limiting through hole 6 on the PCB board 1 is an I-shaped structure. When the limiting protrusion 5 set at the end of the limiting member 3 passes through the through hole of the I-shaped structure, the limiting protrusion 5 is horizontally embedded in the center of the I-shaped structure, so that the PCB board 1 is horizontally installed at the opening of the base, and then a bolt is installed in the mounting hole 7 set on the PCB board 1, so that the PCB board 1 is bolted to the limiting member 3, thereby further improving the stability of the overall installation of the PCB board 1.

[0035] For further information, see Figure 4 As shown in the figure, a rectangular structure base is shown, which is surrounded by four connecting plates 2 and a bottom plate (not shown in the figure), and the four connecting plates are connected in sequence to form a rectangular frame structure. A limiting member is provided on the connecting plate on the shorter side of the base, and the limiting member is bent horizontally toward the opening of the base as a whole.

[0036] See also Figure 1 as well as Figure 2 As shown in the figure, the mounting hole 7 provided on the PCB board 1 corresponds to the connecting through hole 9 provided on one side of the limiting member 3 .

[0037] Specifically, the mounting hole 7 provided on the PCB board 1 corresponds to the connecting through hole 9 provided on one side of the limiting member 3. In one embodiment, a circular mounting hole 7 is provided on the PCB board 1 and the limiting member 3. A bolt is installed in the mounting hole 7. The PCB board 1 and the limiting member 3 are fixedly connected by the bolt. The through hole of the I-shaped structure and the limiting protrusion 5 at the end of the limiting member 3 are matched to enable the PCB board 1 and the limiting member 3 to be quickly assembled. This arrangement further improves the stability of the overall installation of the PCB board 1.

[0038] See also Figure 1 as well as Figure 3 As shown in the figure, the height range of the limiting protrusion 5 is 4.25 to 4.45 cm.

[0039] Specifically, the height range of the limiting protrusion 5 is 4.25 to 4.45 cm. In one embodiment, when the PCB board 1 is assembled at the opening of the base, the limiting protrusion 5 at the end of the limiting member 3 is embedded in the limiting through hole 6 of the I-shaped structure, and the height of the limiting protrusion 5 is greater than the depth of the limiting through hole 6, so that the PCB board 1 can be perfectly matched with the limiting protrusion 5 at the end of the limiting member 3. This arrangement further improves the overall installation stability of the PCB board 1.

[0040] See also Figure 1 , as shown in the figure, the end of the limiting protrusion 5 is a semicircular structure.

[0041] Specifically, the end of the limiting protrusion 5 is a semicircular structure. In one embodiment, the limiting protrusion 5 is made of metal as a whole. The limiting flange 10 set at the end of the limiting member 3 is a semicircular structure. When the PCB board 1 is assembled at the opening of the base, the limiting protrusion 5 at the end of the limiting member 3 is embedded in the limiting through hole 6 of the I-shaped structure. In this arrangement, when the PCB board 1 is assembled, the limiting protrusion 5 can quickly position the PCB board 1, thereby further improving the stability of the overall installation of the PCB board 1.

[0042] See also Figure 1 , as shown in the figure, the width of the limiting protrusion 5 is not greater than the width of the limiting through hole 6.

[0043] Specifically, the width of the limiting protrusion 5 is not greater than the width of the limiting through hole 6. In one embodiment, the limiting protrusion 5 is made of metal as a whole, and the limiting flange 10 arranged at the end of the limiting member 3 is a semicircular structure. When the PCB board 1 is assembled at the opening of the base, the limiting protrusion 5 at the end of the limiting member 3 is embedded in the limiting through hole 6 of the I-shaped structure. In this arrangement, when the PCB board 1 is assembled, the limiting protrusion 5 can quickly position the PCB board 1, thereby further improving the reliability of the overall installation of the PCB board 1.

[0044] See also Figure 1 as well as Figure 4 As shown in the figure, an arc-shaped connecting member 8 is provided on one side of the connecting plate 2, the end of the arc-shaped connecting member 8 is an arc-shaped surface, one end of the arc-shaped connecting member 8 is fixedly connected to the connecting plate 2, and the other end of the arc-shaped connecting member 8 is fixedly connected to the limit member 3.

[0045] Specifically, an arc-shaped connector 8 is provided on one side of the connecting plate 2, and the end of the arc-shaped connector 8 is an arc-shaped surface. One end of the arc-shaped connector 8 is fixedly connected to the connecting plate 2, and the other end of the arc-shaped connector 8 is fixedly connected to the limit member 3. In this arrangement, the arc-shaped connector 8 is provided on one side of the connecting plate 2, and the arc-shaped connector 8 is bent toward the opening of the base, and the bending arc of the arc-shaped connector 8 is 90°. The arc-shaped connector 8 connects the connecting plate 2 and the limit member 3, thereby improving the fixed connection effect of the limit member 3, and then the PCB board 1 is fixed horizontally as a whole at the opening of the base, thereby improving the overall fixity of the PCB board 1.

[0046] See also Figure 2As shown in the figure, the PCB board 1 is also provided with a plurality of mounting holes 7, and the diameter of each mounting hole 7 ranges from 0.5 to 0.7 cm.

[0047] Specifically, the PCB board 1 is further provided with a plurality of mounting holes 7, and the diameter of each of the mounting holes 7 is in the range of 0.5 to 0.7 cm. In one embodiment, the PCB board 1 is used as a whole to be assembled at the opening of the base. The plurality of mounting holes 7 provided on the PCB board 1 are each assigned a bolt, and the PCB board 1 and the limit member 3 are fixedly connected by the bolts, and the through hole of the I-shaped structure and the limit protrusion 5 at the end of the limit member 3 are matched to enable the PCB board 1 and the limit member 3 to be quickly assembled. This arrangement prevents the PCB board 1 from moving up and down when connected to the base, and further improves the stability of the overall installation of the PCB board 1.

[0048] See also Figure 2 , as shown in the figure, the two flanges 10 are arranged opposite to each other.

[0049] Specifically, the two flanges 10 are arranged opposite to each other. In one embodiment, there is a gap between the flanges 10 and the flanges 10, so that the gap between the flanges 10 and the flanges 10 forms an I-shaped through-hole. The through-hole of the I-shaped structure is more closely connected with the limiting protrusion 5, thereby improving the overall fixing effect of the circuit board. It is better to perform an embedded connection from the limiting protrusion 5 on one side of the limiting member 3 toward the through-hole on one side of the PCB board 1, which is convenient for positioning the limiting protrusion 5, thereby improving the overall reliability of fixing the PCB board 1 and the limiting member 3, and preventing the PCB board 1 from moving up and down when connected to the base during installation.

[0050] See also Figure 3 as well as Figure 4 As shown in the figure, two limiting through holes 6 are provided on the PCB board 1.

[0051] Specifically, two limiting through holes 6 are provided on the PCB board 1. In one embodiment, the base is surrounded by four connecting plates 2, and a bottom plate is provided at the bottom of the base, and a rectangular opening is provided on the side away from the bottom plate. The opening provided on the base is used to connect a PCB board 1, and the limiting through holes 6 are used to connect the outer PCB board 1 to prevent the PCB board 1 from falling during installation, thereby improving the fixation between the PCB board 1 and the base, and preventing the PCB board 1 from moving up and down when connected to the base, which affects the bending of the PCB board 1 during the installation process.

[0052] See also Figure 1 , Figure 3 as well as Figure 4As shown in the figure, at least two limiting members 3 are provided on one side of the connecting plate 2.

[0053] Specifically, at least two limit members 3 are provided on one side of the connecting plate 2. In one embodiment, the multiple limit members 3 provided on the connecting plate 2 are fixedly connected with the limit through holes 6 of the PCB board 1 in sequence. When the limit protrusions 5 provided on the limit members 3 are connected in conjunction with the limit through holes of the I-shaped structure, the fixation between the PCB board 1 and the base is further improved, thereby preventing the PCB board 1 from moving up and down when connected to the base, which affects the bending of the PCB board 1 during the installation process.

[0054] The utility model discloses a fixing device, the fixing device comprises a limiting member, the limiting member is fixedly connected with a PCB board; the limiting member is fixedly arranged on a connecting plate at one side of a base, and the PCB board is covered and arranged above the limiting member; at least one limiting through hole is arranged on the PCB board, two flanges protruding and extending toward the center of the limiting through hole are arranged in the limiting through hole; and a gap is arranged between the two flanges; the limiting member comprises a limiting body and a limiting protrusion vertically connected to the limiting body; the limiting protrusion corresponds to the limiting through hole one by one; the limiting member is horizontally bent toward a side away from the connecting plate; at least one limiting protrusion is plugged into the corresponding limiting through hole on the PCB board, so that the PCB board is horizontally assembled on the base. In this arrangement, the stability of the PCB board as a whole is greatly increased by plugging the limiting member into the limiting through hole on one side of the PCB board. The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A fixing device, characterized in that: The fixing device comprises a limiting member, and the limiting member is fixedly connected to the PCB board; The limiting member is fixedly arranged on a connecting plate at one side of the base, and the PCB board is arranged to cover the limiting member; At least one limiting through hole is provided on the PCB board, and two flanges are provided in the limiting through hole and protrude toward the center of the limiting through hole; and a gap is provided between the two flanges; The limiting member includes a limiting body and a limiting protrusion vertically connected to the limiting body; the limiting protrusion corresponds to the limiting through hole one by one; The limiting member is horizontally bent toward a side away from the connecting plate; At least one of the limiting protrusions is plugged into a corresponding limiting through hole on the PCB board, so that the PCB board is horizontally assembled on the base.

2. A fixing device according to claim 1, characterized in that: The mounting hole arranged on the PCB board corresponds to the connecting through hole arranged on one side of the limiting member.

3. A fixing device according to claim 2, characterized in that: The height range of the limiting protrusion is 4.25-4.45 cm.

4. A fixing device according to claim 1, characterized in that: The end of the limiting protrusion is a semicircular structure.

5. A fixing device according to claim 1, characterized in that: The width of the limiting protrusion is not greater than the width of the limiting through hole.

6. A fixing device according to claim 1, characterized in that: An arc-shaped connecting piece is arranged on one side of the connecting plate, the end of the arc-shaped connecting piece is an arc-shaped surface, one end of the arc-shaped connecting piece is fixedly connected to the connecting plate, and the other end of the arc-shaped connecting piece is fixedly connected to the limiting piece.

7. A fixing device according to claim 1, characterized in that: The PCB board is also provided with a plurality of mounting holes, and the diameter of each mounting hole ranges from 0.5 to 0.7 cm.

8. A fixing device according to claim 1, characterized in that: The two flanges are arranged opposite to each other.

9. A fixing device according to claim 1, characterized in that: The PCB board is provided with two limiting through holes.

10. A fixing device according to claim 1, characterized in that: At least two limiting members are arranged on one side of the connecting plate.

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