High-precision multilayer PCB circuit board

Abstract

The utility model relates to the technical field of PCBs (printed circuit boards), in particular to a high-precision multilayer PCB, which comprises a circuit board body, four corners of the circuit board body are provided with mounting holes, one side, close to the mounting holes, of the circuit board body is fixedly connected with gaskets, inserting rods are inserted into the mounting holes, and the inserting rods are inserted into the mounting holes. The bottom of the inserting rod is fixedly connected with a supporting rod, the bottom of the supporting rod is fixedly connected with a threaded column, and the top of the inserting rod is fixedly connected with a threaded rod. Compared with the prior art, the circuit board has the advantages that when the circuit board is used, the four supporting rods can be connected with the connecting holes in the four corners of the bottom plate through the threaded columns, then the mounting holes in the four corners of the circuit board body are connected with the inserting rods, the inserting rods are sleeved with the sleeves, and then the circuit board body can be fixed to the tops of the supporting rods by rotating the nuts; when the screw cap slips, the through groove is broken off through a tool to take down the sleeve, and then the circuit board body can be taken down by pinching off the insertion rod through pliers.

Description

Technical Field

[0001] This utility model relates to the field of PCB circuit board technology, and in particular to a high-precision multilayer PCB circuit board. Background Technology

[0002] PCB is short for Printed Circuit Board. Generally, a conductive pattern consisting of printed lines, printed components, or a combination of both, made on an insulating material according to a predetermined design is called a printed circuit. The conductive pattern on the insulating substrate that provides electrical connections between components is called a printed line.

[0003] A high-precision multilayer PCB circuit board is disclosed in Chinese Patent CN218183629U. Research on existing technologies and the aforementioned patent reveals that current PCB boards are fixed using bolts during installation. However, this installation method is prone to stripping after repeated use, thus affecting the stability of the PCB board. Therefore, this utility model proposes a high-precision multilayer PCB circuit board. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a high-precision multilayer PCB circuit board.

[0006] The purpose of this utility model is achieved through the following technical solution: a high-precision multilayer PCB circuit board, including a circuit board body, mounting holes are provided at the four corners of the circuit board body, a gasket is fixedly connected to the side of the circuit board body near the mounting hole, a plug rod is inserted into the inside of the mounting hole, a support rod is fixedly connected to the bottom of the plug rod, a threaded post is fixedly connected to the bottom of the support rod, a screw is fixedly connected to the top of the plug rod, a sleeve is sleeved on the outer surface of the plug rod, a through groove is provided on one side of the sleeve, and a nut is threadedly connected to the outer surface of the screw.

[0007] The bottom of the threaded column is threadedly connected to a base plate, the top of the base plate is fixedly connected to a barrier, the top four corners of the barrier are fixedly connected to fixing plates, the top of the fixing plates are fixedly connected to protective strips, and the four corners of the base plate are provided with connection holes.

[0008] Preferably, the gasket is an annular plate, the inner diameter of the gasket is the same as the diameter of the mounting hole, the diameter of the insert rod is adapted to the diameter of the mounting hole, the length of the insert rod is greater than the depth of the mounting hole, and the insert rod is welded to the center of the top of the support rod.

[0009] By adopting the above technical solution, the support rod can fix the circuit board body to the top of the base plate.

[0010] Preferably, the diameter of the support rod is larger than the diameter of the mounting hole, the threaded post is welded to the center of the bottom of the support rod, and the diameter of the threaded post is adapted to the diameter of the connecting hole.

[0011] By adopting the above technical solution, the support rod is connected to the base plate as a whole through a threaded column.

[0012] Preferably, the screw is welded to the top of the insert rod, the diameter of the screw is the same as the diameter of the insert rod, the inner diameter of the sleeve is matched with the outer diameter of the insert rod, and the length of the sleeve is less than the length of the insert rod.

[0013] By adopting the above technical solution, the sleeve can be installed as a gasket at the bottom of the nut.

[0014] Preferably, the through groove is a rectangular groove, the length of the through groove is the same as the length of the sleeve, and the sleeve is made of aluminum alloy.

[0015] By adopting the above technical solution, when the nut is stripped, the sleeve can be removed by prying open the slot with a tool, and then the circuit board body can be removed by clamping the plug rod with pliers.

[0016] Preferably, the fence is a rectangular frame, the fixing plate is an L-shaped plate, and there are four fixing plates. The four fixing plates are respectively welded to the four corners of the top of the fence. The protective strip is L-shaped and made of rubber.

[0017] By adopting the above technical solution, the top surface height of the fixing plate is greater than the top surface height of the circuit board body. When the circuit board body falls, the fixing plate will be hit first, thus protecting the circuit board body. The rubber protective strip can protect the fixing plate.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1. This high-precision multilayer PCB circuit board features a sleeve with a screw fixedly connected to the top of the insertion rod. The sleeve is fitted onto the outer surface of the insertion rod, and a through groove is provided on one side of the sleeve. A nut is threaded onto the outer surface of the screw. In use, four support rods can be connected to the connection holes at the four corners of the base plate through threaded posts. Then, the mounting holes at the four corners of the circuit board body are connected to the insertion rods. The sleeve is then fitted onto the outside of the insertion rods, and the nut is rotated to fix the circuit board body to the top of the support rods. When the nut strips, the through groove can be pried open with a tool to remove the sleeve, and then the insertion rod can be cut off with pliers to remove the circuit board body.

[0020] 2. This high-precision multilayer PCB circuit board features a fixed plate. A barrier is fixedly connected to the top of the base plate, and fixed plates are fixedly connected to the four corners of the top of the barrier. A protective strip is fixedly connected to the top of the fixed plate. The top surface of the fixed plate is higher than the top surface of the circuit board body. When the circuit board body falls, the fixed plate will be hit first, thus protecting the circuit board body. The rubber protective strip protects the fixed plate. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the circuit board body of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the support rod of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the fixing plate of this utility model.

[0025] In the diagram: 1-Circuit board body, 2-Mounting hole, 3-Gasket, 4-Plug, 5-Support rod, 6-Threaded post, 7-Screw, 8-Sleeve, 9-Through groove, 10-Nut, 11-Base plate, 12-Enclosure, 13-Fixing plate, 14-Protective strip, 15-Connecting hole. Detailed Implementation

[0026] Additional aspects and advantages of this invention will be further set forth in the description which follows in conjunction with the accompanying drawings, and in part will be obvious from the description or may be learned by practice of the invention.

[0027] like Figure 1-3 As shown, a high-precision multilayer PCB circuit board includes a circuit board body 1. Mounting holes 2 are provided at the four corners of the circuit board body 1. A gasket 3 is embedded in the side of the circuit board body 1 near the mounting hole 2. A plug rod 4 is inserted into the mounting hole 2. A support rod 5 is welded to the bottom of the plug rod 4. A threaded post 6 is welded to the bottom of the support rod 5. A screw 7 is welded to the top of the plug rod 4. A sleeve 8 is sleeved on the outer surface of the plug rod 4. A through groove 9 is provided on one side of the sleeve 8. A nut 10 is threadedly connected to the outer surface of the screw 7.

[0028] With the above setup, in use, the four support rods 5 can be connected to the connection holes 15 at the four corners of the base plate 11 through the threaded post 6. Then, the mounting holes 2 at the four corners of the circuit board body 1 are connected to the plug rods 4. Then, the sleeve 8 is put on the outside of the plug rods 4. Then, the circuit board body 1 can be fixed to the top of the support rods 5 by rotating the nut 10. When the nut 10 is stripped, the sleeve 8 can be removed by prying open the through groove 9 with a tool. Then, the plug rods 4 can be cut off with pliers to remove the circuit board body 1.

[0029] like Figure 1 and Figure 4 As shown, the bottom of the threaded column 6 is threadedly connected to a base plate 11, the top of the base plate 11 is welded to a baffle 12, the four corners of the top of the baffle 12 are all welded to a fixing plate 13, the top of the fixing plate 13 is bonded to a protective strip 14, and the four corners of the base plate 11 are all provided with connection holes 15.

[0030] With the above settings, the top surface height of the fixing plate 13 is greater than the top surface height of the circuit board body 1. When the circuit board body 1 falls, the fixing plate 13 will be hit first, thus protecting the circuit board body 1. The rubber protective strip 14 can protect the fixing plate 13.

[0031] As a preferred technical solution of this utility model, the gasket 3 is an annular plate, the inner diameter of the gasket 3 is the same as the diameter of the mounting hole 2, the diameter of the insertion rod 4 is matched with the diameter of the mounting hole 2, the length of the insertion rod 4 is greater than the depth of the mounting hole 2, and the insertion rod 4 is welded to the center of the top of the support rod 5.

[0032] As a preferred technical solution of this utility model, the diameter of the support rod 5 is larger than the diameter of the mounting hole 2, and the threaded post 6 is welded to the center of the bottom of the support rod 5, and the diameter of the threaded post 6 is adapted to the diameter of the connecting hole 15.

[0033] As a preferred embodiment of this utility model, the screw 7 is welded to the top of the insert 4, the diameter of the screw 7 is the same as the diameter of the insert 4, the inner diameter of the sleeve 8 is matched with the outer diameter of the insert 4, and the length of the sleeve 8 is less than the length of the insert 4.

[0034] As a preferred technical solution of this utility model, the through groove 9 is a rectangular groove, the length of the through groove 9 is the same as the length of the sleeve 8, and the sleeve 8 is made of aluminum alloy.

[0035] As a preferred technical solution of this utility model, the enclosure 12 is a rectangular frame, the fixing plate 13 is an L-shaped plate, and there are four fixing plates 13. The four fixing plates 13 are welded to the four corners of the top of the enclosure 12, and the protective strip 14 is L-shaped and made of rubber.

[0036] The working process of this utility model is as follows:

[0037] S1. Connect the four support rods 5 to the connection holes 15 at the four corners of the base plate 11 through the threaded post 6.

[0038] S2. Connect the mounting holes 2 at the four corners of the circuit board body 1 to the plug rod 4, then put the sleeve 8 on the outside of the plug rod 4, and then rotate the nut 10 to fix the circuit board body 1 to the top of the support rod 5.

[0039] S3. When the nut 10 is stripped, use a tool to pry open the through groove 9 and remove the sleeve 8. Then use pliers to cut off the plug rod 4 to remove the circuit board body 1.

[0040] S4. When the circuit board body 1 falls, the fixing plate 13 will be hit first, thus protecting the circuit board body 1.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-precision multilayer PCB circuit board, characterized in that: The circuit board includes a circuit board body (1), which has mounting holes (2) at all four corners. A gasket (3) is fixedly connected to the side of the circuit board body (1) near the mounting hole (2). A plug rod (4) is inserted into the mounting hole (2). A support rod (5) is fixedly connected to the bottom of the plug rod (4). A threaded column (6) is fixedly connected to the bottom of the support rod (5). A screw rod (7) is fixedly connected to the top of the plug rod (4). A sleeve (8) is fitted onto the outer surface of the plug rod (4). A through groove (9) is opened on one side of the sleeve (8). A nut (10) is threaded onto the outer surface of the screw rod (7). The bottom of the threaded column (6) is threadedly connected to a base plate (11), and the top of the base plate (11) is fixedly connected to a barrier (12). The four corners of the top of the barrier (12) are fixedly connected to a fixing plate (13), and the top of the fixing plate (13) is fixedly connected to a protective strip (14). The four corners of the base plate (11) are provided with connection holes (15).

2. The high-precision multilayer PCB circuit board according to claim 1, characterized in that: The gasket (3) is an annular plate. The inner diameter of the gasket (3) is the same as the diameter of the mounting hole (2). The diameter of the insert rod (4) is matched with the diameter of the mounting hole (2). The length of the insert rod (4) is greater than the depth of the mounting hole (2). The insert rod (4) is welded to the center of the top of the support rod (5).

3. A high-precision multilayer PCB circuit board according to claim 1, characterized in that: The diameter of the support rod (5) is larger than the diameter of the mounting hole (2), and the threaded post (6) is welded to the center of the bottom of the support rod (5). The diameter of the threaded post (6) is adapted to the diameter of the connecting hole (15).

4. A high-precision multilayer PCB circuit board according to claim 1, characterized in that: The screw (7) is welded to the top of the insert (4). The diameter of the screw (7) is the same as the diameter of the insert (4). The inner diameter of the sleeve (8) is matched with the outer diameter of the insert (4). The length of the sleeve (8) is less than the length of the insert (4).

5. A high-precision multilayer PCB circuit board according to claim 1, characterized in that: The through groove (9) is a rectangular groove, and the length of the through groove (9) is the same as the length of the sleeve (8). The sleeve (8) is made of aluminum alloy.

6. A high-precision multilayer PCB circuit board according to claim 1, characterized in that: The enclosure (12) is a rectangular frame, the fixing plate (13) is an L-shaped plate, and there are four fixing plates (13). The four fixing plates (13) are welded to the four corners of the top of the enclosure (12). The protective strip (14) is L-shaped and made of rubber.

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