A circuit board having a shaped structure

Abstract

The application discloses a circuit board with a fixed structure and belongs to the technical field of circuit boards. The circuit board is arranged in a rectangular frame, a fixing mechanism is arranged in the rectangular frame, the circuit board is located in the fixing mechanism, a rectangular groove is formed in the front surface of the circuit board, a plurality of connecting mechanisms are arranged in the rectangular groove, and a plurality of semicircular pieces are fixedly connected to the outer surface of the rectangular frame. In the application, the different semicircular pieces are clamped into different semicircular arc grooves, so that different rectangular frames can be connected together and installed together in different splicing modes, thereby effectively connecting two or more circuit boards. The semicircular columns on two different circuit boards are spliced together through the connecting mechanisms, so that the fixing ring is blocked and cannot be separated from the combined circular column, thereby effectively fixing the two connecting mechanisms on the two circuit boards together.

Description

Technical Field

[0001] This invention belongs to the field of circuit board technology, and particularly relates to a circuit board with a fixed structure. Background Technology

[0002] A conductive pattern on an insulating substrate that provides electrical connections between components is called a printed circuit. The finished board with printed circuits or printed lines is thus called a printed circuit board, also known as a printed circuit board or printed circuit board. Circuit boards can be classified according to function as follows: single-sided circuit boards, double-sided circuit boards, multilayer circuit boards, aluminum-based circuit boards, impedance circuit boards, FPC flexible circuit boards, etc.

[0003] In the existing technology, in order to connect two different circuit boards together, a fixed structure is usually installed on the circuit board. This not only achieves the purpose of connecting the circuit boards, but also serves to fix them together. However, the existing fixed structure occupies a lot of space. In the narrow space inside the appliance, it will occupy a lot of space and affect the installation of other components. Moreover, the operation is relatively complicated. After the fixed structure is achieved, it is difficult to disassemble it quickly, making the installation and use process quite troublesome. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that in the prior art, in order to connect two different circuit boards together, a fixed structure is usually installed on the circuit board. This not only achieves the purpose of connecting the circuit boards but also serves to fix them together. However, the existing fixed structure occupies a lot of space, which will occupy a lot of space in the narrow space inside the appliance and affect the installation of other components. Moreover, the operation is relatively complicated, and it is difficult to disassemble quickly after the fixed effect is achieved, making the installation and use process quite troublesome. Therefore, this invention proposes a circuit board with a fixed structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A circuit board with a fixed structure includes a circuit board and a rectangular frame. The circuit board is disposed within the rectangular frame, and a fixing mechanism is disposed within the rectangular frame. The circuit board is located within the fixing mechanism. A rectangular groove is formed on the front side of the circuit board, and multiple connecting mechanisms are disposed within the rectangular groove. Multiple semi-circular pieces are fixedly connected to the outer surface of the rectangular frame. Multiple semi-circular arc grooves are formed on the outer surface of the rectangular frame, and the multiple semi-circular arc grooves and the multiple semi-circular pieces are spaced apart from each other.

[0007] As a further description of the above technical solution:

[0008] The fixing mechanism includes a cavity inside a rectangular frame. The cavity is rectangular, and a first connecting plate is provided on both the upper and lower sides inside the cavity. A first clamping plate is fixedly connected to the opposite face of the two first connecting plates. A toggle block is fixedly connected to the front of the first connecting plate. The toggle block passes through a toggle hole opened on the front of the rectangular frame and extends to the outside of the rectangular frame.

[0009] As a further description of the above technical solution:

[0010] Multiple first springs are fixedly connected to the far-away surfaces of the two first connecting plates. The other end of the first spring is fixedly connected to one side of the inner wall of the cavity. Limiting posts are fixedly connected to the left and right sides of the far-away surfaces of the two first connecting plates. The limiting posts are set in the limiting grooves opened in the inner wall of the rectangular groove. Guide wheels are fixedly connected to the left and right sides of the far-away surfaces of the two first connecting plates.

[0011] As a further description of the above technical solution:

[0012] The fixing mechanism also includes two second connecting plates, which are located on the left and right sides of the cavity. Triangular blocks are fixedly connected to the upper and lower sides of the opposite surfaces of the two second connecting plates. The inclined surfaces of the triangular blocks are in contact with the outer surface of the guide wheel. First sliders are fixedly connected to the upper and lower sides of the second connecting plates. The first sliders are slidably connected in the first groove opened in the inner wall of the cavity.

[0013] As a further description of the above technical solution:

[0014] The two second connecting plates are fixedly connected to the opposite sides of each other with a second clamping plate. The second clamping plate passes through the second through hole opened in the inner wall of the rectangular frame. The two second connecting plates are fixedly connected to the opposite far sides of each other with two second springs arranged symmetrically at the top and bottom. The other end of the second spring is fixedly connected to the inner wall of the cavity.

[0015] As a further description of the above technical solution:

[0016] The connecting mechanism includes a fixed block disposed in a rectangular groove. Hollow grooves are provided on the upper and lower sides of the back of the fixed block. A semi-circular arc piece is disposed in the hollow groove. A second slider is fixedly connected to the left and right sides of the semi-circular arc piece. The second slider is slidably connected to a second sliding groove opened in the inner wall of the hollow groove.

[0017] As a further description of the above technical solution:

[0018] Steel wires are fixedly connected to the opposite faces of the two semi-circular arc plates. The steel wires pass around the outside of the limiting rollers. The two limiting rollers are fixedly connected to the opposite faces of the inner walls of the two slots. The other end of the steel wire passes through the through hole opened inside the fixing block and is fixedly connected to one end of the back of the rotating shaft. The outer side of the rotating shaft is fitted with a limiting sleeve fixedly connected to the front of the fixing block.

[0019] As a further description of the above technical solution:

[0020] The outer surface of the rotating shaft is fitted with a bushing, and a slide rod is fixedly connected to the outer surface of the bushing. A slide sleeve is fitted to the outer side of the slide rod. A positioning sleeve is engaged on one side of the slide sleeve. Two symmetrically arranged U-shaped plates are fixedly connected to the inner wall of the positioning sleeve. An annular groove is opened on one side of the slide sleeve, and multiple balls are arranged in the annular groove. The balls are rotatably connected to one side of a fixed ring. Two symmetrically arranged baffles are fixedly connected to the inner wall of the fixed ring.

[0021] As a further description of the above technical solution:

[0022] One end of the slide rod is fixedly connected to a semi-circular column, and positioning plates are fixedly connected to the upper and lower sides of the front and rear sides of the semi-circular column.

[0023] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0024] 1. In this invention, by setting semi-circular pieces and semi-circular arc grooves, multiple different semi-circular pieces are respectively inserted into different semi-circular arc grooves, thereby connecting different rectangular frames together and installing them together in different splicing methods. This effectively connects two or more circuit boards. By setting a connecting mechanism, semi-circular pillars on two different circuit boards are spliced ​​together, allowing the two semi-circular pillars to form a complete circular pillar. Moving the sliding sleeve outside the sliding rod moves the positioning sleeve to fit onto the outside of the circular pillar. Simultaneously, the U-shaped plate moves and locks onto the outside of the two positioning pieces. Then, rotating the fixing ring causes two baffles to rotate. The baffles block between the front and rear positioning pieces, preventing the fixing ring from detaching from the assembled circular pillar. The column effectively secures the two connecting mechanisms on the two circuit boards together. Multiple ball bearings allow the ball bearings to roll within the annular groove, adjusting the rotation of the fixing ring and preventing it from disengaging from the positioning sleeve. A rotating shaft and bearings allow adjustment of the angle between the sliding rod and the semi-circular column, facilitating the connection of the two mechanisms. To install or remove the connecting mechanism, the rotating shaft is moved away from the fixing block. The shaft then pulls two semi-circular arc pieces via a steel wire, moving them into the empty groove. At this point, the rectangular groove no longer obstructs the semi-circular arc pieces, allowing the fixing block to be removed from within the semi-circular arc pieces, thus disassembling the connecting mechanism from the rectangular frame. Different numbers of connecting mechanisms can be used as needed, avoiding material waste.

[0025] 2. In this invention, by setting a fixing mechanism, the two toggle blocks are moved away from each other, and the toggle blocks drive the two first connecting plates away from each other, thereby enabling the two first clamping plates to move away from each other. The first connecting plates can drive the guide wheel to move and squeeze the triangular block. The triangular block being squeezed can drive the second connecting plate to move, thereby enabling the two second connecting plates to move away from each other and respectively drive the two second clamping plates to move away from each other. At this time, after the circuit board is placed in the rectangular frame, the two toggle blocks are released. The first spring and the second spring can push the first connecting plate and the second connecting plate to move respectively through their own elastic force. The first connecting plate and the second connecting plate drive the first clamping plate and the second clamping plate to move, thereby effectively clamping the circuit board and effectively fixing the circuit board to the rectangular frame. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of a circuit board with a standardized structure proposed in this invention;

[0027] Figure 2 This is a frontal cross-sectional view of a rectangular frame in a circuit board with a fixed structure proposed in this invention.

[0028] Figure 3 This is an enlarged structural diagram of A in a circuit board with a fixed structure proposed in this invention;

[0029] Figure 4 This is an exploded three-dimensional structural diagram of a positioning sleeve, fixing ring, and semi-circular cylinder in a circuit board with a fixed structure proposed in this invention.

[0030] Figure 5 This is a cross-sectional structural diagram of a fixing block in a circuit board with a fixed structure proposed in this invention.

[0031] Legend:

[0032] 1. Rectangular frame; 2. Circuit board; 3. Semi-circular piece; 4. Semi-circular arc groove; 5. Fixing mechanism; 51. First clamping plate; 52. First through hole; 53. First connecting plate; 54. First spring; 55. Limiting post; 56. Actuating block; 57. Actuating hole; 58. Guide wheel; 59. Triangular block; 510. First slider; 511. Second through hole; 512. Second spring; 513. Second clamping plate; 514. 6. Cavity; 61. Connecting mechanism; 62. Fixing block; 63. Rotating shaft; 64. Limiting sleeve; 65. Sliding rod; 66. Sliding sleeve; 67. Fixing ring; 68. Positioning sleeve; 69. Semi-circular column; 610. Positioning piece; 611. Baffle; 612. Ball bearing; 613. U-shaped plate; 614. Annular groove; 615. Through hole; 616. Limiting roller; 617. Steel wire; 618. Second slider; 619. Semi-circular arc piece. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figure 1-5 This invention provides a technical solution: a circuit board with a fixed structure, including a circuit board 2 and a rectangular frame 1. The circuit board 2 is disposed within the rectangular frame 1, and a fixing mechanism 5 is disposed within the rectangular frame 1. The circuit board 2 is located within the fixing mechanism 5. The fixing mechanism 5 includes a cavity 514 formed inside the rectangular frame 1. The cavity 514 is rectangular. First connecting plates 53 are provided on both the upper and lower sides inside the cavity 514. First clamping plates 51 are fixedly connected to the opposite faces of the two first connecting plates 53. A toggle block 56 is fixedly connected to the front of the first connecting plate 53. The toggle block 56 passes through a toggle hole 57 formed on the front of the rectangular frame 1 and extends to the outside of the rectangular frame 1. Multiple first springs 54 are fixedly connected to the far faces of the two first connecting plates 53. The other end of the first spring 54 is fixedly connected to one side of the inner wall of the cavity 514. Limiting posts 5 are fixedly connected to the left and right sides of the far faces of the two first connecting plates 53. 5. The limiting post 55 is set in the limiting groove opened in the inner wall of the rectangular groove. The left and right sides of the two first connecting plates 53 are fixedly connected with guide wheels 58. The fixing mechanism 5 also includes two second connecting plates. The two second connecting plates are located on the left and right sides of the cavity 514. The upper and lower sides of the opposite surfaces of the two second connecting plates are fixedly connected with triangular blocks 59. The inclined surface of the triangular blocks 59 is in contact with the outer surface of the guide wheels 58. The upper and lower sides of the second connecting plates are fixedly connected with first sliders 510. The first sliders 510 are slidably connected in the first sliding groove opened in the inner wall of the cavity 514. The opposite surfaces of the two second connecting plates are fixedly connected with second clamping plates 513. The second clamping plates 513 penetrate the second through hole 511 opened in the inner wall of the rectangular frame 1. The opposite surfaces of the two second connecting plates are fixedly connected with two second springs 512 arranged symmetrically. The other end of the second springs 512 is fixedly connected to the inner wall of the cavity 514.

[0035] The specific implementation method is as follows: By setting a fixing mechanism 5, the two toggle blocks 56 are moved away from each other. The toggle blocks 56 drive the two first connecting plates 53 to move away from each other, thereby enabling the two first clamping plates 51 to move away from each other. The first connecting plates 53 can drive the guide wheel 58 to move and squeeze the triangular block 59. The triangular block 59, when squeezed, can drive the second connecting plate to move, thereby enabling the two second connecting plates to move away from each other and respectively drive the two second clamping plates 513 to move away from each other. At this time, after the circuit board 2 is placed in the rectangular frame 1, the two toggle blocks 56 are released. The first spring 54 and the second spring 512 can push the first connecting plate 53 and the second connecting plate to move through their own elastic force. The first connecting plate 53 and the second connecting plate drive the first clamping plate 51 and the second clamping plate 513 to move, thereby effectively clamping the circuit board 2 and effectively fixing the circuit board 2 to the rectangular frame 1. By setting a limiting post 55, a limiting groove, a first slider 510 and a first sliding groove, the first connecting plate 53 and the second connecting plate can move stably along the trajectory.

[0036] The circuit board 2 has a rectangular groove on its front side, and multiple connecting mechanisms 6 are arranged in the rectangular groove. Each connecting mechanism 6 includes a fixing block 61 arranged in the rectangular groove. The top and bottom sides of the back of the fixing block 61 have slots, and semi-circular arc pieces 618 are arranged in the slots. Second sliders 617 are fixedly connected to the left and right sides of the semi-circular arc pieces 618. The second sliders 617 are slidably connected to second sliding grooves opened in the inner wall of the slots. Steel wires 616 are fixedly connected to the opposite faces of the two semi-circular arc pieces 618. The steel wires 616 pass around the outside of limiting rollers 615. The two limiting rollers 615 are respectively fixedly connected to the opposite faces of the inner walls of the two slots. The other end of the steel wire 616 passes through a through hole 614 opened inside the fixing block 61 and is fixedly connected to one end of the back of the rotating shaft 62. A limiting sleeve 63 is fixedly connected to the front of the fixing block 61 and sleeved on the outer side of the shaft 62. A bushing is sleeved on the outer surface of the shaft 62. A slide rod 64 is fixedly connected to the outer surface of the bushing. A slide sleeve 65 is sleeved on the outer side of the slide rod 64. A positioning sleeve 67 is engaged on one side of the slide sleeve 65. Two symmetrically arranged U-shaped plates 612 are fixedly connected to the inner wall of the positioning sleeve 67. An annular groove 613 is opened on one side of the slide sleeve 65. Multiple balls 611 are arranged in the annular groove 613. The balls 611 are rotatably connected to one side of the fixing ring 66. Two symmetrically arranged baffles 69 are fixedly connected to the inner wall of the fixing ring 66. 610. A semi-circular column 68 is fixedly connected to one end of the slide rod 64. Positioning plates are fixedly connected to the upper and lower sides of the front and rear sides of the semi-circular column 68.

[0037] The specific implementation method is as follows: By setting a connecting mechanism 6, the semi-circular columns 68 on two different circuit boards 2 are spliced ​​together, so that the two semi-circular columns 68 can form a complete circular column. Moving the sliding sleeve 65 outside the sliding rod 64 causes the positioning sleeve 67 to move and fit onto the outside of the circular column. Simultaneously, the U-shaped plate 612 moves and can be locked onto the outside of the two positioning pieces. Then, rotating the fixing ring 66 causes the two baffle plates 69 and 610 to rotate, and the baffle plates 69 and 610 block between the front and rear positioning pieces, thus preventing the fixing ring 66 from detaching from the assembled circular column. This effectively fixes the two connecting mechanisms 6 on the two circuit boards 2 together. By setting multiple ball bearings 611, the ball bearings 611 can roll within the annular groove 613, thereby adjusting the rotation of the fixing ring 66 and restricting the fixing ring 66 from... To prevent it from detaching from the positioning sleeve 67, the angles of the slide rod 64 and the semi-circular column 68 can be adjusted by setting the rotating shaft 62 and bearings, making it easy to connect the two connecting mechanisms 6 together. If it is necessary to install or remove the connecting mechanism 6, the rotating shaft 62 is moved to disengage from the fixing block 61. The rotating shaft 62 pulls the two semi-circular arc pieces 618 through the steel wire 616, so that the semi-circular arc pieces 618 move into the empty groove. At this time, the rectangular groove no longer blocks the semi-circular arc pieces 618, and people can remove the fixing block 61 from the semi-circular arc pieces 618, thus achieving the purpose of disassembling the connecting mechanism 6 from the rectangular frame 1. Different numbers of connecting mechanisms 6 can be used as needed to avoid material waste. By setting the limiting roller 615, the limiting roller 615 can change the movement trajectory of the steel wire 616. At the same time, in conjunction with the second slider 617 and the second slide groove, the semi-circular arc pieces 618 can be effectively pulled to move stably along the trajectory.

[0038] Multiple semi-circular pieces 3 are fixedly connected to the outer surface of the rectangular frame 1. Multiple semi-circular arc grooves 4 are opened on the outer surface of the rectangular frame 1. The multiple semi-circular arc grooves 4 and the multiple semi-circular pieces 3 are arranged at intervals.

[0039] The specific implementation method is as follows: by setting semi-circular pieces 3 and semi-circular arc grooves 4, multiple different semi-circular pieces 3 are respectively inserted into different semi-circular arc grooves 4, so that different rectangular frames 1 can be connected together and can be installed together in different splicing methods, thereby effectively connecting two or more circuit boards 2.

[0040] Working principle: In use, moving the two toggle blocks 56 away from each other causes the two first connecting plates 53 to move away from each other, thereby causing the two first clamping plates 51 to move away from each other. The first connecting plates 53 can drive the guide wheel 58 to move and press the triangular block 59. The triangular block 59, being pressed, can drive the second connecting plate to move away, thereby causing the two second connecting plates to move away from each other and respectively drive the two second clamping plates 513 to move away from each other. At this time, after placing the circuit board 2 in the rectangular frame 1, releasing the two toggle blocks 56 allows the first spring 54 and the second spring 512 to push the first connecting plate 53 and the second connecting plate to move through their own elasticity. The first connecting plate 53 and the second connecting plate drive the first clamping plates 51 and the second clamping plates 513 to move, thereby effectively clamping the circuit board 2 and inserting multiple different semi-circular pieces 3 into different positions. Within the semi-circular arc groove 4, different rectangular frames 1 can be connected together and installed together in different splicing methods, thereby effectively connecting two or more circuit boards 2, splicing the semi-circular pillars 68 on two different circuit boards 2 together, so that the two semi-circular pillars 68 can form a complete circular pillar. Moving the sliding sleeve 65 outside the sliding rod 64 can drive the positioning sleeve 67 to move and fit on the outside of the circular pillar. At the same time, the U-shaped plate 612 moves and can be locked on the outside of the two positioning pieces. Then, rotating the fixing ring 66 drives the two baffle plates 69 positioning pieces 610 to rotate, and the baffle plates 69 positioning pieces 610 block between the front and rear positioning pieces, so that the fixing ring 66 is blocked and cannot be separated from the assembled circular pillar, thereby effectively fixing the two connecting mechanisms 6 on the two circuit boards 2 together.

[0041] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A circuit board with a fixed structure, comprising a circuit board (2) and a rectangular frame (1), characterized in that, The circuit board (2) is set inside the rectangular frame (1), and a fixing mechanism (5) is set inside the rectangular frame (1). The circuit board (2) is located inside the fixing mechanism (5). A rectangular groove is opened on the front of the circuit board (2), and multiple connecting mechanisms (6) are set inside the rectangular groove. Multiple semi-circular pieces (3) are fixedly connected to the outer surface of the rectangular frame (1). Multiple semi-circular arc grooves (4) are opened on the outer surface of the rectangular frame (1). The multiple semi-circular arc grooves (4) and the multiple semi-circular pieces (3) are spaced apart from each other. The fixing mechanism (5) includes a cavity (514) inside the rectangular frame (1). First connecting plates (53) are provided on both the upper and lower sides of the cavity (514). First clamping plates (51) are fixedly connected to the opposite faces of the two first connecting plates (53). The first connecting plates (53) penetrate through a first through hole (52) in the inner wall of the rectangular frame (1). A toggle block (56) is fixedly connected to the front of the first connecting plates (53). The toggle block (56) penetrates through a toggle hole (57) in the front of the rectangular frame (1). ) and extends to the outside of the rectangular frame (1). Multiple first springs (54) are fixedly connected to the opposite surfaces of the two first connecting plates (53). The other end of the first spring (54) is fixedly connected to one side of the inner wall of the cavity (514). Limiting posts (55) are fixedly connected to the left and right sides of the opposite surfaces of the two first connecting plates (53). The limiting posts (55) are set in the limiting groove opened in the inner wall of the rectangular groove. Guide wheels (58) are fixedly connected to the left and right sides of the opposite surfaces of the two first connecting plates (53). The fixing mechanism (5) also includes two second connecting plates. The two second connecting plates are located on the left and right sides of the cavity (514). Triangular blocks (59) are fixedly connected to the upper and lower sides of the opposite surfaces of the two second connecting plates. The inclined surface of the triangular blocks (59) is in contact with the outer surface of the guide wheel (58). First sliders (510) are fixedly connected to the upper and lower sides of the second connecting plates. The first sliders (510) are slidably connected in the first groove opened in the inner wall of the cavity (514). Second clamping plates (513) are fixedly connected to the opposite surfaces of the two second connecting plates. The second clamping plates (513) penetrate the second through hole (511) opened in the inner wall of the rectangular frame (1). Two second springs (512) are fixedly connected to the opposite surfaces of the two second connecting plates. The other end of the second springs (512) is fixedly connected to the inner wall of the cavity (514). The connecting mechanism (6) includes a fixed block (61) set in a rectangular groove. The fixed block (61) has slots on both the upper and lower sides of its back surface. A semi-circular arc piece (618) is set in each slot. A second slider (617) is fixedly connected to both the left and right sides of the semi-circular arc piece (618). The second slider (617) is slidably connected to a second sliding groove opened in the inner wall of the slot. A steel wire (616) is fixedly connected to the opposite faces of the two semi-circular arc pieces (618). The steel wire (616) passes around the outside of a limiting roller (615). The two limiting rollers (615) are respectively fixedly connected to the opposite faces of the inner walls of the two slots. The other end of the steel wire (616) passes through a through hole (614) opened inside the fixed block (61) and is fixedly connected to one end of the back surface of a rotating shaft (62). The outer side of the rotating shaft (62) is sleeved on the front surface of the fixed block (61). A limiting sleeve (63) is fixedly connected to the surface. A bushing is fitted on the outer surface of the rotating shaft (62). A sliding rod (64) is fixedly connected to the outer surface of the bushing. A sliding sleeve (65) is fitted on the outer side of the sliding rod (64). A positioning sleeve (67) is snapped onto one side of the sliding sleeve (65). Two symmetrically arranged U-shaped plates (612) are fixedly connected to the inner wall of the positioning sleeve (67). An annular groove (613) is opened on one side of the sliding sleeve (65). Multiple balls (611) are arranged in the annular groove (613). The balls (611) are rotatably connected to one side of the fixed ring (66). Two symmetrically arranged baffles (610) are fixedly connected to the inner wall of the fixed ring (66). A semi-circular column (68) is fixedly connected to one end of the sliding rod (64). Positioning plates (69) are fixedly connected to the upper and lower sides of the front and rear sides of the semi-circular column (68).

2. A circuit board with a standardized structure according to claim 1, characterized in that, The first connecting plate (53) passes through the first through hole (52) opened in the inner wall of the rectangular frame (1). A toggle block (56) is fixedly connected to the front of the first connecting plate (53). The toggle block (56) passes through the toggle hole (57) opened in the front of the rectangular frame (1) and extends to the outside of the rectangular frame (1).

3. A circuit board with a standardized structure according to claim 1, characterized in that, The two second connecting plates are fixedly connected to the opposite sides of the second clamping plate (513), and the second clamping plate (513) passes through the second through hole (511) opened in the inner wall of the rectangular frame (1).

4. A circuit board with a standardized structure according to claim 1, characterized in that, The inner wall of the fixed ring (66) is fixedly connected with two symmetrically arranged baffles (610), and one end of the slide rod (64) is fixedly connected with a semi-circular column (68). The upper and lower sides of the front and rear sides of the semi-circular column (68) are fixedly connected with positioning plates (69).

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