Circuit board positioning device

Abstract

The utility model relates to the technical field of circuit boards, and provides a circuit board positioning device which comprises a lower shell, four corners of the upper surface of the lower shell are fixedly connected with fixing blocks respectively, the upper ends of the four fixing blocks are fixedly connected with an upper shell, the upper surface of the lower shell is rotatably connected with a rotating ring, and the upper surface of the lower shell is provided with a driving part used for driving the rotating ring to rotate. A plurality of connecting rods are circularly hinged to the inner side wall of the rotating ring at equal intervals, a plurality of clamping plates are arranged on the upper surface of the lower shell through a plurality of guide mechanisms, the clamping plates are circularly distributed at equal intervals, and one ends of the connecting rods are hinged to one sides of the clamping plates respectively. According to the circuit board positioning device, the circuit board can be clamped by the four clamping plates at a time by rotating and adjusting the rotating ring at a time, and the positioning process of the circuit board of a square structure is facilitated.

Description

[0001] The utility model relates to the technical field of circuit boards, and in particular to a circuit board positioning device. Background Art

[0002] Circuit boards are also called printed circuit boards. Circuit boards are divided into three categories according to the number of layers: single-sided boards, double-sided boards and multi-layer printed circuit boards. Circuit boards make circuits miniaturized and intuitive, and play an important role in the mass production of fixed circuits and the optimization of electrical appliance layout.

[0003] After searching, the existing patent (Announcement No.: CN215773944U) discloses a circuit board positioning device with protective performance, including a protective heat dissipation structure, an elastic adjustment structure and a clamping positioning structure. The inner wall of the protective heat dissipation structure is provided with an elastic adjustment structure, and the inner side of the elastic adjustment structure is clamped with a clamping positioning structure; the elastic adjustment structure includes: a limit frame, which is fixed to the inner wall of the protective heat dissipation structure. The circuit board positioning device with protective performance can effectively protect the circuit board from dust after the lower shell groove and the upper shell cover are fixed by bolt combination, and the gap between the lower shell groove and the edge of the upper shell cover is convenient for the heat dissipation of the internal circuit board and the pulling out and placement after the cable is connected. The clamping positioning structure can move along the limit groove under the action of the rear spring, so that the user can adjust the distance between the clamping positioning structures according to the size of different circuit boards, and the insulating rubber pad bonded inside the bracket reduces the wear on the surface of the circuit board.

[0004] However, in the implementation of the relevant technology, it was found that the above-mentioned problems exist as follows: when positioning and installing a circuit board with a square structure, each clamping and positioning structure needs to be adjusted individually one by one, that is, each nut needs to be loosened individually, and the four clamps will clamp the circuit board therein under the action of the spring. After that, each nut needs to be tightened individually. The operation is too cumbersome, which makes it inconvenient to position the circuit board with a square structure, and it is also inconvenient to remove the positioned circuit board. Summary of the invention

[0005] The utility model provides a circuit board positioning device, which solves the problems in the related technology.

[0006] The technical solution of the utility model is as follows: a circuit board positioning device comprises a lower shell body, wherein the four corners of the upper surface of the lower shell body are respectively fixedly connected with fixed blocks, the upper ends of the four fixed blocks are fixedly connected with the upper shell body, the upper surface of the lower shell body is rotatably connected with a rotating ring, the upper surface of the lower shell body is provided with a driving member for driving the rotating ring to rotate, the inner side wall of the rotating ring is circular and hinged with a plurality of connecting rods at equal intervals, the upper surface of the lower shell body is respectively provided with a plurality of clamping plates through a plurality of guide mechanisms, and the plurality of clamping plates are distributed in a circular shape with equal intervals, and one end of the plurality of connecting rods is respectively hinged to one side of the plurality of clamping plates.

[0007] Preferably, the driving member includes a ring gear and a gear, the ring gear is fixedly sleeved on the outer side wall of the rotating ring, and the gear is rotatably connected to the upper surface of the lower shell body through a rotating shaft.

[0008] Preferably, the upper end of the rotating shaft passes through the upper surface of the upper shell and is fixedly connected to a rotating disk, and an adjusting bolt is threadedly connected to the rotating disk.

[0009] Preferably, the guide mechanism comprises a guide groove and a guide block, the guide groove is provided on the upper surface of the lower shell body, the guide block is fixedly connected to the lower end of the clamping plate, and the guide block is slidably disposed in the guide groove.

[0010] Preferably, the clamping plate is an L-shaped structure.

[0011] Preferably, the specific number of the plurality of clamping plates is four, and the four clamping plates can respectively contact the four side edges of the circuit board through translation.

[0012] Preferably, rubber pads are respectively arranged on opposite sides of the four clamping plates, and outer sides of the four rubber pads can respectively contact the side edges of the circuit board through translation.

[0013] The working principle and beneficial effects of the utility model are:

[0014] In the utility model, the driving member drives the rotating ring to rotate, and then through the linear guiding action of the guide mechanism, the four clamping plates can simultaneously perform horizontal linear motion toward the middle and approach each other, so that the four clamping plates can directly and conveniently clamp the circuit board with a square structure, and there is no need to adjust each clamping and positioning structure one by one to completely clamp the circuit board. The design can make the four clamping plates clamp the circuit board at one time by rotating the rotating ring once, which facilitates the positioning process of the circuit board with a square structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0016] Figure 1 This is a schematic diagram of the external structure of the circuit board positioning device proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the circuit board positioning device proposed by the utility model;

[0018] Figure 3 for Figure 2 A schematic diagram of the structure of the lower shell and the guide groove;

[0019] Figure 4for Figure 2 Bottom view of part of the structure;

[0020] Figure 5 This is a structural cross-sectional view of the circuit board positioning device proposed by the utility model.

[0021] Figure 6 for Figure 5 Schematic diagram of the structure of the upper shell and the gap.

[0022] In the figure: 1. lower shell; 2. fixed block; 3. upper shell; 4. rotating ring; 5. connecting rod; 6. clamping plate; 7. circuit board; 8. ring gear; 9. gear; 10. turntable; 11. adjusting bolt; 12. guide groove; 13. guide block; 14. avoidance. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The following will be combined with 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 only 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.

[0027] See also Figure 1 , Figure 2 , Figure 4 and Figure 5 The utility model provides a technical solution: a circuit board positioning device, including a lower shell 1, the four corners of the upper surface of the lower shell 1 are fixedly connected with fixed blocks 2, the upper ends of the four fixed blocks 2 are fixedly connected with an upper shell 3, the upper surface of the lower shell 1 is rotatably connected with a rotating ring 4, the upper surface of the lower shell 1 is provided with a driving member for driving the rotating ring 4 to rotate, the inner side wall of the rotating ring 4 is circular and evenly hinged with a plurality of connecting rods 5, the upper surface of the lower shell 1 is respectively provided with a plurality of clamping plates 6 through a plurality of guide mechanisms, and the plurality of clamping plates 6 are distributed in a circular and evenly spaced manner, and the plurality of guide mechanisms can respectively enable the plurality of clamping plates 6 to only perform horizontal linear movements toward or away from the direction of the circuit board 7, and one end of the plurality of connecting rods 5 is respectively hinged to one side of the plurality of clamping plates 6.

[0028] The guide mechanism includes a guide groove 12 and a guide block 13. The guide groove 12 is opened on the upper surface of the lower shell body 1. The guide block 13 is fixedly connected to the lower end of the clamping plate 6, and the guide block 13 is slidably set in the guide groove 12. Each guide block 13 can only slide horizontally and linearly in the corresponding guide groove 12, so that the hinged clamping plates 6 can only move horizontally and linearly toward or away from the circuit board 7.

[0029] The clamping plate 6 is an L-shaped structure, and the horizontal section of the clamping plate 6 can contact one side of the upper surface of the circuit board 7 by translation, and the vertical section of the clamping plate 6 can contact the side of the circuit board 7 by translation. When installing and positioning the circuit board 7, it is only necessary to place the circuit board 7 directly on the upper surface of the lower shell 1, and several clamping plates 6 can directly clamp the circuit board 7, which facilitates the positioning process of the circuit board 7.

[0030] The specific number of the plurality of clamps 6 is four, and the four clamps 6 can respectively contact the four sides of the circuit board 7 through translation. The four clamps 6 can just contact the four sides of the circuit board 7, which is convenient for clamping and positioning, and at the same time improves its stability; in addition, the specific number of the corresponding plurality of connecting rods 5 and the plurality of guide mechanisms is also four.

[0031] Rubber pads are respectively provided on the opposite sides of the four clamping plates 6, and the outer sides of the four rubber pads can respectively contact the side edges of the circuit board 7 by translation. When the circuit board 7 is clamped by several clamping plates 6, the rubber pads will respectively contact the side edges of the circuit board 7, thereby playing a role of shock absorption and buffering, and at the same time preventing the clamping force of several clamping plates 6 from being too large to cause damage to the circuit board 7.

[0032] When installing the circuit board 7, first, open the upper shell 3 and place the circuit board 7 between the four clamping plates 6 on the upper surface of the lower shell 1. Then, rotate the rotating ring 4 through the driving member, and the rotating ring 4 drives the hinged ends of the four connecting rods 5 to rotate circumferentially respectively. Since each guide block 13 can only slide horizontally and linearly in the corresponding guide groove 12, the hinged clamping plates 6 can only move horizontally and linearly toward or away from the circuit board 7. Therefore, the other ends of the four connecting rods 5 will push the four clamping plates 6 toward the middle respectively, and the four clamping plates 6 will move horizontally and linearly toward the middle and move closer to each other. Finally, the four clamping plates 6 will clamp the circuit board 7. At this time, fix the upper shell 3 to the upper ends of the four fixed blocks 2 to complete the positioning process of the circuit board 7. Therefore, the present design drives the rotating ring 4 to rotate through the driving member, and then through the linear guiding action of the guiding mechanism, the four clamping plates 6 can simultaneously perform horizontal linear motion toward the middle and approach each other, so that the four clamping plates 6 can directly and conveniently clamp the circuit board 7 of the square structure, without having to adjust each clamping and positioning structure one by one to completely clamp the circuit board. The present design can make the four clamping plates 6 clamp the circuit board 7 at one time by rotating and adjusting the rotating ring 4 at one time, thereby facilitating the positioning process of the circuit board 7 of the square structure.

[0033] See also Figure 2 , Figure 4 , Figure 5 and Figure 6 The driving member includes a ring gear 8 and a gear 9. The ring gear 8 is fixedly sleeved on the outer wall of the rotating ring 4. The gear 9 is rotatably connected to the upper surface of the lower shell 1 through a rotating shaft. The upper end of the rotating shaft penetrates the upper surface of the upper shell 3 and is fixedly connected with a rotating disk 10. The rotating disk 10 is threadedly connected with an adjusting bolt 11. First, by manually rotating the rotating disk 10, the rotating disk 10 drives the rotating shaft to rotate, the rotating shaft drives the gear 9 to rotate, the gear 9 drives the ring gear 8 to rotate, and the ring gear 8 can drive the rotating ring 4 to rotate; wherein, the upper shell A notch 14 for passing the rotating shaft is provided on one side of the upper shell body 3 close to the turntable 10, so that after the circuit board 7 is clamped and positioned, the notch 14 on one side of the upper shell body 3 can be conveniently passed through the rotating shaft to fix the upper shell body 3 to the upper ends of the four fixed blocks 2, and then, the turntable 10 is tightened by tightening the adjusting bolt 11, thereby fastening the rotating shaft, gear 9, ring gear 8 and rotating ring 4, and then the circuit board 7 clamped by the four clamping plates 6 is fastened, thereby improving the stability of the positioning of the circuit board 7.

[0034] The working principle and use process of the utility model: when installing the circuit board 7, first, open the upper shell 3, place the circuit board 7 between the four clamping plates 6 on the upper surface of the lower shell 1, and then manually rotate the turntable 10, the turntable 10 drives the rotating shaft to rotate, the rotating shaft drives the gear 9 to rotate, the gear 9 drives the ring gear 8 to rotate, the ring gear 8 drives the rotating ring 4 to rotate, and the rotating ring 4 drives the hinged ends of the four connecting rods 5 to rotate circumferentially respectively. Since each guide block 13 can only slide horizontally and linearly in the corresponding guide groove 12, the hinged clamping plates 6 can only approach the direction of the circuit board 7. Or horizontal linear motion away from, therefore, the other ends of the four connecting rods 5 will respectively push the four clamping plates 6 toward the middle, and the four clamping plates 6 will perform horizontal linear motion toward the middle and get closer to each other, and finally, the four clamping plates 6 will clamp the circuit board 7. At this time, the notch 14 on one side of the upper shell 3 is passed through the rotating shaft, so that the upper shell 3 can be fixed to the upper ends of the four fixed blocks 2, and then, the turntable 10 is tightened by tightening the adjusting bolt 11, thereby tightening the rotating shaft, gear 9, ring gear 8 and rotating ring 4, and then the circuit board 7 clamped by the four clamping plates 6 is tightened, and the positioning process of the circuit board 7 can be completed.

[0035] Therefore, the present design drives the rotating ring 4 to rotate through the driving member, and then through the linear guiding action of the guiding mechanism, the four clamping plates 6 can simultaneously perform horizontal linear motion toward the middle and approach each other, so that the four clamping plates 6 can directly and conveniently clamp the circuit board 7 of the square structure, without having to adjust each clamping and positioning structure one by one to completely clamp the circuit board. The present design can make the four clamping plates 6 clamp the circuit board 7 at one time by rotating and adjusting the rotating ring 4 at one time, thereby facilitating the positioning process of the circuit board 7 of the square structure.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A circuit board positioning device, comprising a lower housing (1), wherein four corners of the upper surface of the lower housing (1) are respectively fixedly connected to fixing blocks (2), and the upper ends of the four fixing blocks (2) are fixedly connected to an upper housing (3), characterized in that: The upper surface of the lower shell (1) is rotatably connected to a rotating ring (4); a driving member for driving the rotating ring (4) to rotate is disposed on the upper surface of the lower shell (1); a plurality of connecting rods (5) are hingedly connected to the inner wall of the rotating ring (4) at equal intervals in a circular shape; a plurality of clamping plates (6) are respectively disposed on the upper surface of the lower shell (1) through a plurality of guide mechanisms; the plurality of clamping plates (6) are distributed at equal intervals in a circular shape; and one end of the plurality of connecting rods (5) is respectively hingedly connected to one side of the plurality of clamping plates (6).

2. The circuit board positioning device according to claim 1, characterized in that: The driving member comprises a ring gear (8) and a gear (9); the ring gear (8) is fixedly sleeved on the outer side wall of the rotating ring (4); and the gear (9) is rotatably connected to the upper surface of the lower housing (1) via a rotating shaft.

3. The circuit board positioning device according to claim 2, characterized in that: The upper end of the rotating shaft passes through the upper surface of the upper shell (3) and is fixedly connected to a rotating disk (10), and an adjusting bolt (11) is threadedly connected to the rotating disk (10).

4. The circuit board positioning device according to claim 1, characterized in that: The guide mechanism comprises a guide groove (12) and a guide block (13); the guide groove (12) is formed on the upper surface of the lower shell (1); the guide block (13) is fixedly connected to the lower end of the clamping plate (6); and the guide block (13) is slidably disposed in the guide groove (12).

5. The circuit board positioning device according to claim 4, characterized in that: The clamping plate (6) is an L-shaped structure.

6. The circuit board positioning device according to claim 5, characterized in that: The specific number of the plurality of clamping plates (6) is four, and the four clamping plates (6) can respectively contact the four side edges of the circuit board (7) through translation.

7. The circuit board positioning device according to claim 6, characterized in that: Rubber pads are respectively arranged on opposite sides of the four clamping plates (6), and the outer sides of the four rubber pads are respectively able to contact the side edges of the circuit board (7) through translation.

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