Plug-in type multilayer circuit board

Abstract

The utility model discloses a plug-in type multilayer circuit board which comprises a lower circuit board and an upper circuit board, the upper circuit board is arranged above the lower circuit board, fixing sleeves are fixedly connected above four corners of the upper circuit board and four corners of the lower circuit board, plug pin rods are fixedly connected below four corners of the upper circuit board and four corners of the lower circuit board, and the plug pin rods are fixedly connected with the upper circuit board and the lower circuit board. The fixing sleeve and the bolt rod are matched in an inserted mode, through holes are formed in the two sides of the interior of the bolt rod, connecting rods are inserted into the through holes, supporting plates are fixedly connected to one ends of the connecting rods, supporting springs are fixedly connected between the supporting plates, and rotating shafts are fixedly connected to the top ends of the supporting plates. The fixing sleeve and the bolt rod between the upper circuit board and the lower circuit board are in plug-in fit to complete plug-in fixation, the fixing sleeve extrudes the bolt protruding block on the outer side of the bolt rod in the plug-in process, the supporting spring is elastically pressed back after extrusion, and then the bolt protruding block is inserted into the bolt groove to be fixed in a plug-in mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plug-in type multilayer circuit board, and concretely relates to a plug-in type multilayer circuit board. BACKGROUND

[0002] The circuit board PCB is printed PCB, and the circuit board is short for printed circuit board, and the conductive pattern formed by printing circuit, printed component or both on the insulating material according to the predetermined design is called printed circuit, and the conductive pattern providing electrical connection between components on the insulating base material is called printed circuit, which has good practicality and conduction effect in use, and the production cost is low, and is widely applied in various fields.

[0003] The circuit board in the prior art is fixed by bolts in the assembling process, and for the multilayer circuit board assembly, the multiple circuit boards are stacked and fastened by bolts, but the bolt fastening is prone to cause cracking and damage of the circuit board after repeated fastening, thereby affecting the use, and professional tools are required for bolt installation, and the work cannot be conveniently and quickly disassembled and installed. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of plug-in type multilayer circuit boards, and the fixed sleeve and the bolt bar between upper circuit board and lower circuit board are inserted and matched, plug-in fixed is completed, fixed sleeve is extruded to the outside bolt protruding block of bolt bar in plug-in process, extruded support spring elastic back pressure, subsequently bolt protruding block is inserted in the inside of bolt recess, to complete plug-in fixed.

[0005] To achieve the above object, a kind of plug-in type multilayer circuit board is provided, comprising: lower circuit board and upper circuit board, the upper side of the lower circuit board is provided with upper circuit board, the upper side of the four corners of the upper circuit board and lower circuit board is fixedly connected with fixed sleeve, the lower side of the four corners of the upper circuit board and lower circuit board is fixedly connected with bolt bar, the fixed sleeve and bolt bar are inserted and matched, the inside of the bolt bar is provided with through hole on both sides, the inside of the through hole is inserted with connecting rod, one end of the connecting rod is fixedly connected with support plate, the support plate is fixedly connected with support spring, the top of the support plate is fixedly connected with rotating shaft, the inside of the rotating shaft is rotatably connected with rotating rod, the rotating rod is rotatably connected with rotating shaft, the two ends of the rotating shaft are fixedly connected with pull rod.

[0006] According to the plug-in type multilayer circuit board, the inside of the bolt bar is fixedly connected with sliding groove rod above middle, the sliding groove rod and support plate are slidingly matched.

[0007] According to the plug-in type multilayer circuit board, the end of the connecting rod away from support spring is fixedly connected with bolt protruding block.

[0008] According to the plug-in type multi-layer circuit board, latch grooves are provided at both ends of the interior of the fixing sleeve, and the latch protrusions are plugged into and fitted with the latch grooves.

[0009] According to the plug-in multilayer circuit board, open grooves are provided on both sides of one end of the lower circuit board.

[0010] According to the plug-in multi-layer circuit board, both sides of one end of the bottom of the upper circuit board are fixedly connected with card blocks, and the card blocks are snap-fitted with the open slots.

[0011] According to the plug-in multi-layer circuit board, the pull rods all pass through the upper circuit board.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model is a plug-in multilayer circuit board, which is provided with: an upper circuit board, a lower circuit board, a fixing sleeve, a latch rod and a latch protrusion. The fixing sleeve and the latch rod between the upper circuit board and the lower circuit board are plugged together to complete the plug-in fixation. During the plug-in process, the fixing sleeve squeezes the latch protrusion on the outer side of the latch rod. After squeezing, the support spring elastically presses back, and then the latch protrusion is plugged into the inside of the latch groove, thereby completing the plug-in fixation. After plugging, the clamping block and the open slot are clamped to complete the plug-in again, thereby increasing the firmness.

[0014] 2. The utility model is a plug-in multi-layer circuit board, which is provided with: a pull rod, a rotating shaft, a rotating rod and a support plate. The top pull rod is lifted upward, and then the rotating shaft and the rotating rod are rotated and matched to move the support plate closer to the middle. After approaching, the support plate slides and matches to compress the support spring, and the latch protrusion is disengaged from the latch groove to achieve the splitting effect.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a three-dimensional structural diagram of a plug-in multi-layer circuit board of the utility model;

[0018] Figure 2 This is a front cross-sectional view of a fixing sleeve and a latch rod of a plug-in multilayer circuit board of the utility model;

[0019] Figure 3 For this utility model Figure 2 Enlarged view of point B in FIG.

[0020] Figure 4 The utility model discloses Figure 1 A place amplification chart in the utility model.

[0021] In the drawing: 1, lower circuit board;2, bolt rod;3, fixed sleeve;4, upper circuit board;5, pull rod;6, rotating shaft;7, through hole;8, support plate;9, support spring;10, connecting rod;11, sliding slot rod;12, rotating rod;13, open slot;14, clamping block;15, bolt protruding block;16, bolt recess. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative work belong to the range protected by the utility model.

[0023] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a kind of plug-in multi-layer circuit board, comprising: lower circuit board 1 and upper circuit board 4, the upper side of lower circuit board 1 is provided with upper circuit board 4, upper circuit board 4 and the upper side of lower circuit board 1 in four corners are all fixedly connected with fixed sleeve 3, the lower side of upper circuit board 4 and lower circuit board 1 in four corners is all fixedly connected with bolt rod 2, cooperate with multi-layer circuit board, complete plug-in, first by the fixed sleeve 3 and bolt rod 2 between upper circuit board 4 and lower circuit board 1 plug-in cooperation, complete plug-in fixed, fixed sleeve 3 and bolt rod 2 plug-in cooperation, the inside both sides of bolt rod 2 are all provided with through hole 7, the structure of through hole 7 can be connected with the penetration of connecting rod 10, keep limit stable sliding and stable recovery, reach limit effect, the inside plug-in of through hole 7 is connected with connecting rod 10, one end of connecting rod 10 is fixedly connected with support plate 8, support plate 8 is fixedly connected with support spring 9 between, fixed sleeve 3 extrude the outside bolt protruding block 15 of bolt rod 2, after extrusion support spring 9 elastic back pressure, one end of connecting rod 10 away from support spring 9 is fixedly connected with bolt protruding block 15, bolt protruding block 15 is inserted in the inside of bolt recess 16, to complete plug-in fixed, the top of support plate 8 is fixedly connected with rotating shaft, rotating shaft is rotatably connected with rotating rod 12 in the inside, rotating cooperation of rotating shaft 6 and rotating rod 12, it can be close to middle part to the middle part of support plate 8, after close, the sliding cooperation of support plate 8 can compress support spring 9, bolt protruding block 15 separates bolt recess 16 to realize the effect of split, rotating rod 12 is rotatably connected with rotating shaft 6 between, the structure of rotating shaft 6 can complete the rotation of angle, both ends of rotating shaft 6 are fixedly connected with pull rod 5, when needing to split the upper circuit board 4 and lower circuit board 1 and overhaul, the pull rod 5 of top can be lifted up.

[0024] The slide rod 11 is fixedly connected to the upper middle part of the inside of the latch rod 2, and can stably slide with the support plate 8, so as to approach the middle part or extrude to slide and expand the support to both ends. The slide rod 11 is in sliding fit with the support plate 8. The inside of the fixed sleeve 3 is provided with a latch recess 16. The latch protrusion 15 is in plug-in fit with the latch recess 16. The lower circuit board 1 is provided with an open slot 13 on both sides of one end. The upper circuit board 4 is fixedly connected with a clamping block 14 on both sides of one end. The clamping block 14 is in abutment. The clamping block 14 and the open slot 13 are in clamping fit. The clamping block 14 and the open slot 13 are in clamping fit. The pull rod 5 penetrates the upper circuit board 4.

[0025] Working principle: in use, the multi-layer circuit board is matched and plugged, the fixed sleeve 3 and the latch rod 2 between the upper circuit board 4 and the lower circuit board 1 are plugged and matched, the plug-in fit is completed, the fixed sleeve 3 extrudes the outer latch protrusion 15 of the latch rod 2 during the plug-in process, the support spring 9 is elastically returned after extrusion, then the latch protrusion 15 is plugged into the inside of the latch recess 16, so as to complete the plug-in fit, the clamping block 14 and the open slot 13 are clamped after plugging, the plug-in fit is completed again, and the firmness is increased. When the upper circuit board 4 and the lower circuit board 1 need to be disassembled and repaired, the pull rod 5 at the top can be lifted upwards, then the rotating shaft 6 and the rotating rod 12 are in rotating fit, the support plate 8 can approach the middle part, the support plate 8 is in sliding fit after approaching, the support spring 9 can be compressed, the latch protrusion 15 is separated from the latch recess 16, the disassembly effect is realized, then the clamping block 14 is in abutment, and the open slot 13 is separated, so as to be disassembled again.

[0026] The above embodiment of the utility model is described in detail in combination with the drawings, but the utility model is not limited to the above embodiment. Within the scope of knowledge possessed by ordinary skilled in the art, various changes can be made without departing from the purpose of the utility model.

Claims

1. A plug-in multilayer circuit board, comprising: The lower circuit board (1) and the upper circuit board (4) are characterized in that an upper circuit board (4) is arranged above the lower circuit board (1), and a fixing sleeve (3) is fixedly connected to the four corners of the upper circuit board (4) and the lower circuit board (1), and a latch rod (2) is fixedly connected to the four corners of the upper circuit board (4) and the lower circuit board (1), and the fixing sleeve (3) and the latch rod (2) are plugged into each other, and a through hole (7) is provided on both sides of the interior of the latch rod (2), and a connecting rod (10) is plugged into the interior of the through hole (7), and one end of the connecting rod (10) is fixedly connected to a support plate (8), and a support spring (9) is fixedly connected between the support plates (8), and the top of the support plate (8) is fixedly connected to a rotating shaft, and the interior of the rotating shaft is rotatably connected to a rotating rod (12), and the rotating rods (12) are rotatably connected to a rotating shaft (6), and both ends of the rotating shaft (6) are fixedly connected to a pull rod (5).

2. A plug-in type multilayer circuit board according to claim 1, characterized in that: A slide rod (11) is fixedly connected to the upper middle portion of the latch rod (2), and the slide rod (11) and the support plate (8) are in sliding engagement.

3. A plug-in type multilayer circuit board according to claim 1, characterized in that: One end of the connecting rod (10) away from the supporting spring (9) is fixedly connected with a latch protrusion (15).

4. A plug-in type multilayer circuit board according to claim 3, characterized in that: The fixing sleeve (3) is provided with latch grooves (16) at both ends of its interior, and the latch protrusions (15) and the latch grooves (16) are plug-fitted.

5. A plug-in type multilayer circuit board according to claim 1, characterized in that: Open slots (13) are provided on both sides of one end of the lower circuit board (1).

6. A plug-in type multilayer circuit board according to claim 5, characterized in that: Both sides of one end of the bottom of the upper circuit board (4) are fixedly connected with a clamping block (14), and the clamping block (14) and the opening slot (13) are clamped and matched.

7. A plug-in type multilayer circuit board according to claim 1, characterized in that: The pull rods (5) all pass through the upper circuit board (4).

Images