Multi-layer circuit board mounting structure

Abstract

The utility model discloses a multilayer circuit board installation structure, which comprises a damping support assembly, a lower layer circuit board and an upper layer circuit board, the top of the damping support assembly is fixedly connected with an assembly seat, and the four corners of the top of the assembly seat are fixedly connected with vertical rods; a knob is arranged on one side of the assembling base, a push-pull mechanism is jointly installed between the knob and the assembling base, and a gear transmission mechanism is jointly installed between the movable end of the push-pull mechanism and the assembling base. According to the utility model, through the arrangement of the assembly seat, the vertical rod, the knob, the push-pull mechanism, the gear transmission mechanism, the cam, the frame, the U-shaped rod, the pressing seat and the supporting seat, during installation, an upper-layer circuit board and a lower-layer circuit board only need to be placed above the appropriate supporting seat, so that the distance can be adjusted; by rotating the knob, fixation can be achieved, an original bolt structure is replaced, no external tool is needed for auxiliary installation, installation is convenient and rapid, and the installation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of circuit board mounting technology, and in particular to a multi-layer circuit board mounting structure. Background Technology

[0002] A circuit board, also known as a printed circuit board or printed circuit board, is a printed circuit board on an insulating substrate with interconnecting wires formed according to a predetermined design. However, it does not integrate any electronic components. Simply put, a circuit board is a substrate that provides electrical connections and physical support for electronic components. The structure of a circuit board is relatively simple, mainly composed of an insulating substrate, a conductive layer, and a protective layer.

[0003] The prior art disclosure number CN219146018U discloses a multilayer circuit board with a shock-absorbing base, which includes an upper circuit board, a lower circuit board disposed below the upper circuit board, limiting components disposed on the left and right sides of the upper circuit board and the lower circuit board, and a shock-absorbing support component disposed below the limiting components.

[0004] The circuit board is fixed to the mounting plate with bolts, which takes a lot of time to assemble and disassemble. The spacing of the circuit board is also adjusted and fixed by bolts. Although bolts make the overall structure simpler, the installation efficiency is relatively low. This is mainly because fixing and removing bolts requires one operation and tools, which is quite troublesome. Therefore, an improvement is proposed. Utility Model Content

[0005] This utility model is a multi-layer circuit board mounting structure proposed to overcome the shortcomings of the existing technology.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a multi-layer circuit board mounting structure, including a shock-absorbing support assembly, a lower circuit board and an upper circuit board, wherein a mounting base is fixedly connected to the top of the shock-absorbing support assembly, and uprights are fixedly connected to the four corners of the top of the mounting base.

[0007] A knob is provided on one side of the assembly base. A push-pull mechanism is installed between the knob and the assembly base. A gear transmission mechanism is installed between the movable end of the push-pull mechanism and the assembly base. Two cams are symmetrically installed at the output end of the gear transmission mechanism.

[0008] Both cams have frames and U-shaped rods attached to their outer surfaces. The frames are fixedly installed at the bottom of adjacent U-shaped rods. Both ends of the two U-shaped rods extend through the inner top wall of the mounting base to the interior of adjacent uprights. The U-shaped rods are slidably connected to the mounting base. Multiple pressure seats are fixedly connected to the inner walls on both sides of the two U-shaped rods. Each pressure seat has a matching support seat at its bottom. The support seats are fixedly connected to adjacent uprights. The lower circuit board and the upper circuit board are respectively placed on top of four adjacent support seats.

[0009] Furthermore, the push-pull mechanism includes a screw, which is fixedly installed at one end of the knob. The screw extends through the outer wall of the mounting base to the interior and is rotatably connected to it. A sliding plate is threaded onto the outer surface of the screw, and the sliding plate slides against the inner top wall of the mounting base. The mounting base has a limiting effect on the sliding plate, which can ensure the stability of the sliding plate movement.

[0010] Furthermore, the gear transmission mechanism includes a rack, which is fixedly connected to the slide plate. A gear is meshed with the bottom of the rack, and a rotating shaft is fixedly connected through the center of the gear. The two ends of the rotating shaft are respectively limited to rotating connections with the inner wall of the adjacent side of the mounting base. When the rack moves, the rotating shaft can be driven to rotate through the gear.

[0011] Furthermore, the two cams are symmetrically fixedly sleeved on the outer surface of the rotating shaft, so that when the rotating shaft rotates, it can drive the two cams to rotate.

[0012] Furthermore, each of the four uprights has a stroke hole on one side of the support base, and the stroke hole is connected to the inner cavity of the adjacent upright. The inner walls on both sides of the stroke hole are in contact with and slide against the adjacent pressure seat. The stroke hole has a limiting effect on the pressure seat, which can ensure the stability of the pressure seat movement.

[0013] Furthermore, rubber pads are fixedly connected to the bottom of each of the pressure seats and the top of the support seats. The rubber pads can protect the circuit board and prevent the support seats, pressure seats and circuit boards from making hard contact.

[0014] The beneficial effects of this utility model are:

[0015] In use, this utility model provides a multi-layer circuit board mounting structure. Through the inclusion of an assembly base, uprights, knobs, a push-pull mechanism, a gear transmission mechanism, a cam, a frame, a U-shaped rod, a pressure base, and a support base, installation is simple: just place the upper and lower circuit boards on the appropriate support bases to adjust the spacing; turning the knob secures the board. This replaces the original bolt structure and eliminates the need for external tools, making installation more convenient and faster, and improving installation efficiency. Attached Figure Description

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

[0017] Figure 1 : A perspective view of this utility model;

[0018] Figure 2 First-view sectional view of this utility model;

[0019] Figure 3 The present utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 The present utility model Figure 2 Enlarged view at point B in the middle;

[0021] Figure 5 : A second-view sectional view of this utility model;

[0022] Figure 6 The present utility model Figure 4 Enlarged view of point C in the middle.

[0023] The attached figures are labeled as follows:

[0024] 1. Vibration damping support assembly; 2. Mounting base; 3. Upright pole; 4. Lower circuit board; 5. Upper circuit board; 6. Pressure base; 7. U-shaped rod; 8. Slide plate; 9. Rack; 10. Shaft; 11. Gear; 12. Rubber pad; 13. Support base; 14. Screw; 15. Knob; 16. Stroke hole; 17. Cam; 18. Frame. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figures 1 to 6 As shown, a multi-layer circuit board mounting structure is disclosed, including a shock-absorbing support assembly 1, a lower circuit board 4 and an upper circuit board 5. A mounting base 2 is fixedly connected to the top of the shock-absorbing support assembly 1, and uprights 3 are fixedly connected to the four corners of the top of the mounting base 2.

[0027] The shock-absorbing support component 1 has a shock-absorbing effect, preventing the circuit board from being affected by vibration.

[0028] A knob 15 is provided on one side of the mounting base 2. A push-pull mechanism is installed between the knob 15 and the mounting base 2. A gear transmission mechanism is installed between the movable end of the push-pull mechanism and the mounting base 2. Two cams 17 are symmetrically installed at the output end of the gear transmission mechanism. The push-pull mechanism includes a screw 14, which is fixedly installed at one end of the knob 15. The screw 14 extends through the outer wall of the mounting base 2 and is rotatably connected to it. A slide plate 8 is threaded onto the outer surface of the screw 14, and the slide plate 8 slides against the inner top wall of the mounting base 2. The gear transmission mechanism includes a rack 9, which is fixedly connected to the slide plate 8. A gear 11 is meshed with the bottom of the rack 9. A rotating shaft 10 is fixedly connected through the center of the gear 11. The two ends of the rotating shaft 10 are rotatably connected to the inner wall of the adjacent side of the mounting base 2. Two cams 17 are symmetrically fixedly sleeved on the outer surface of the rotating shaft 10.

[0029] The limiting rotation connection of screw 14 is at Figure 4 The presence of the screw 14 facilitates its installation; both sides of the mounting base 2 have circular grooves on their inner walls, and the rotating shaft 10 is inserted into the circular grooves to achieve the purpose of limiting rotation.

[0030] The outer surfaces of the two cams 17 are fitted with frames 18 and U-shaped rods 7, and the frames 18 are fixedly installed at the bottom of the adjacent U-shaped rods 7. Both ends of the two U-shaped rods 7 extend through the inner top wall of the mounting base 2 to the interior of the adjacent uprights 3, and the U-shaped rods 7 are slidably connected to the mounting base 2. Multiple pressure seats 6 are fixedly connected to the inner walls on both sides of the two U-shaped rods 7. The bottom of the multiple pressure seats 6 is provided with matching support seats 13, and the support seats 13 are fixedly connected to the adjacent uprights 3. The lower circuit board 4 and the upper circuit board 5 are respectively placed on the top of the four adjacent support seats 13. The four uprights 3 are provided with stroke holes 16 on one side of the support seats 13, and the stroke holes 16 communicate with the inner cavity of the adjacent uprights 3. The inner walls on both sides of the stroke holes 16 are fitted and slidably connected to the adjacent pressure seats 6. Rubber pads 12 are fixedly connected to the bottom of the multiple pressure seats 6 and the top of the support seats 13.

[0031] Rubber pad 12 increases protection during fixing, preventing the pressure seat 6 and support seat 13 from making hard contact with the circuit board.

[0032] Working principle: During installation, place the upper circuit board 5 and the lower circuit board 4 on the four suitable support seats 13, then turn the knob 15. The knob 15 drives the screw 14 to rotate. The screw 14, in conjunction with the slide plate 8, drives the rack 9 to move to one side of the knob 15. The rack 9 drives the gear 11 to rotate. The gear 11 drives the rotating shaft 10 and the two cams 17 to rotate. During the rotation, the cams 17 drive the U-shaped rod 7 to descend through the frame 18. The U-shaped rod 7 drives the multiple pressure seats 6 connected to it to descend until the upper circuit board 5 and the lower circuit board 4 are clamped and fixed by the cooperation of two adjacent rubber pads 12. To disassemble, simply reverse the knob 15 to release the fixation of the two circuit boards.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A multilayer circuit board mounting structure, comprising a shock-absorbing support assembly (1), a lower circuit board (4), and an upper circuit board (5), characterized in that: The top of the shock-absorbing support assembly (1) is fixedly connected to a mounting base (2), and each of the four corners of the top of the mounting base (2) is fixedly connected to a vertical pole (3). A knob (15) is provided on one side of the assembly base (2). A push-pull mechanism is installed between the knob (15) and the assembly base (2). A gear transmission mechanism is installed between the movable end of the push-pull mechanism and the assembly base (2). Two cams (17) are symmetrically installed at the output end of the gear transmission mechanism. The outer surfaces of the two cams (17) are fitted with frames (18) and U-shaped rods (7), and the frames (18) are fixedly installed at the bottom of the adjacent U-shaped rods (7). Both ends of the two U-shaped rods (7) extend through the inner top wall of the mounting base (2) to the interior of the adjacent uprights (3), and the U-shaped rods (7) are slidably connected to the mounting base (2). Multiple pressure seats (6) are fixedly connected to the inner walls on both sides of the two U-shaped rods (7). The bottom of the multiple pressure seats (6) is provided with matching support seats (13), and the support seats (13) are fixedly connected to the adjacent uprights (3). The lower circuit board (4) and the upper circuit board (5) are respectively placed on the top of the four adjacent support seats (13).

2. The multilayer circuit board mounting structure according to claim 1, characterized in that: The push-pull mechanism includes a screw (14), which is fixedly installed at one end of the knob (15). The screw (14) extends through the outer wall of the mounting base (2) and is rotatably connected to it. The outer surface of the screw (14) is threaded with a sliding plate (8), and the sliding plate (8) slides against the inner top wall of the mounting base (2).

3. The multilayer circuit board mounting structure according to claim 2, characterized in that: The gear transmission mechanism includes a rack (9) and a fixed connection between the rack (9) and the slide plate (8). A gear (11) is meshed with the bottom of the rack (9). A rotating shaft (10) is fixedly connected through the center of the gear (11), and the two ends of the rotating shaft (10) are respectively limited to rotating connections with the inner wall of the adjacent side of the mounting base (2).

4. The multilayer circuit board mounting structure according to claim 3, characterized in that: The two cams (17) are symmetrically fixedly sleeved on the outer surface of the rotating shaft (10).

5. The multilayer circuit board mounting structure according to claim 1, characterized in that: Each of the four uprights (3) has a stroke hole (16) on one side of the support base (13), and the stroke hole (16) is connected to the inner cavity of the adjacent upright (3), and the inner walls on both sides of the stroke hole (16) are in contact with and slide against the adjacent pressure base (6).

6. The multilayer circuit board mounting structure according to claim 1, characterized in that: Rubber pads (12) are fixedly connected to the bottom of each of the multiple pressure seats (6) and the top of the support seat (13).

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