A convenient dismounting mechanism of a plate and a dismounting method thereof

Abstract

The application relates to a convenient dismounting mechanism of a plate and a dismounting method thereof. The convenient dismounting mechanism comprises a rotating shaft, a gasket, a locking upper seat, large and small springs, steel balls, a locking lower seat, a base, a boss, a locking column, a pressing surface, a contact surface and a fixing seat used in cooperation. The locking upper seat is fixedly connected with the locking lower seat through the rotating shaft and the large and small springs and can rotate within a certain range. The plate is clamped between the locking upper seat and the locking lower seat and can be driven to do linear motion by the boss of the locking upper seat, so that the plate is inserted into or withdrawn from the connector, thereby realizing the fixation or unlocking of the plate. The convenient dismounting mechanism has the advantages of simple structure, easy operation, high dismounting efficiency, good fixation locking effect and the like, can quickly complete the switching of the locking and unlocking states of the PCB in a short time and in a simple method, and can not only stably lock the PCB at the preset position, but also does not need to repeatedly dismount the base when the circuit board is dismounted.

Description

Technical Field

[0001] This invention relates to the field of mechanical structure technology, specifically to a convenient plate assembly and disassembly mechanism and its assembly and disassembly method. Background Technology

[0002] The assembly and disassembly of PCBs (integrated circuit boards) in a system typically involves threaded screws. This method generally uses several sets of interlocking screw threads to secure the circuit board to the mounting base. Due to limitations in system size or assembly / disassembly space, the screws securing the circuit board usually need to be screwed in before the mounting base is placed into the system compartment. When replacing the circuit board or performing software testing, the mounting base must be removed from the compartment, the screws unscrewed, and finally the circuit board removed from the mounting base. For some special-purpose circuit boards, live testing may be required; however, using conductive screw threads for securing the board carries the risk of short circuits in some modules of the circuit board.

[0003] To reduce the time and risks associated with assembling and adjusting circuit boards, it is necessary to develop and design a mechanism that allows for easy assembly and disassembly, so that the circuit board can be stably locked in a preset position without disassembling the assembly / disassembly base when removing the circuit board. Summary of the Invention

[0004] The purpose of this invention is to solve the aforementioned problems of existing screw thread connection fixing methods for circuit boards and to provide a novel convenient assembly and disassembly mechanism for circuit boards. This mechanism includes a rotating shaft 1, a locking upper seat 3, and a locking lower seat 7. The locking upper seat 3 is fixedly connected to the locking lower seat 7 via the rotating shaft 1 and can rotate within a certain range. The circuit board 18 is engaged between the locking upper seat 3 and the locking lower seat 7 and can be driven by the locking upper seat 3 to make linear movements to insert into or remove from the connector 19, thereby achieving the fixing or unlocking of the circuit board 18.

[0005] Furthermore, the disassembly and assembly mechanism also includes a washer 2 and a large spring 4. The rotating shaft 1 passes through the washer 2, the large spring 4, and the upper locking seat 3 in sequence before being fixedly connected to the lower locking seat 7, pressing the large spring 4 into the stepped hole of the upper locking seat 3. The main function of the washer is to fix the end of the large spring and adjust its installation position. The main function of the large spring is to generate elastic force under pressure, ensuring that the plate is not damaged during fixing, and maintaining the stability of the locked state.

[0006] Furthermore, the disassembly and assembly mechanism also includes a small spring 5, which is mounted on the rotating shaft 1 and compressed and constrained between the upper locking seat 3 and the lower locking seat 7. The main function of the small spring is to provide a rebound force to prevent damage to the plate and maintain the stability of the locked state.

[0007] Furthermore, the disassembly and assembly mechanism also includes a base 8, and the locking lower seat 7 is fixedly connected to the base 8, which is fixed to the equipment or product.

[0008] Furthermore, the disassembly and assembly mechanism also includes steel balls 6. Grooves are provided on the bottom surface of the upper locking seat 3 and the top surface of the lower locking seat 7, and the steel balls 6 are engaged in the grooves. The design of the steel balls is mainly to reduce the friction during rotation, making the upper locking seat rotate more easily and smoothly.

[0009] Furthermore, the number of steel balls 6 is 3 sets, and the corresponding number of grooves on the upper locking seat 3 and the lower locking seat 7 is 3 sets and symmetrically distributed.

[0010] Furthermore, a locking pin 10 is provided on the side of the locking upper seat 3. The locking pin functions similarly to a handle, facilitating the rotation of the locking upper seat 3.

[0011] Furthermore, a boss 9 is provided at the bottom of the locking upper seat 3, and a matching groove 14 is provided on the side of the plate 18, with the boss 9 engaging in the groove 14. Rotating the locking upper seat 3 causes the boss 9 to move, and the boss 9 drives the plate 18 to move linearly through the groove 14.

[0012] Furthermore, a pressing surface 11 is radially provided on the lower locking seat 7, and contact surfaces I12 and II13 are provided perpendicular to the pressing surface 11 at an angle to each other. After the plate 18 is pressed down by the upper locking seat 3, it is pressed tightly against the pressing surface 11 and the contact surfaces. Rotating the upper locking seat 3 causes the contact part between the boss 9 and the lower locking seat 7 to switch between contact surfaces I12 and II13, thereby ensuring that the plate 18 has moved into place.

[0013] Furthermore, the disassembly and assembly mechanism also includes a matching fixing base 17, on which a recessed connecting hole 15 for fixing the fixing base and a slot 16 for engaging the plate 18 to facilitate its better linear movement are provided.

[0014] Furthermore, disassembly and assembly mechanisms and matching fixing seats 17 are provided on both the left and right sides of the board 18.

[0015] Furthermore, the board material 18 includes plastic board, cardboard, wood board, metal board, glass board, composite board, etc., and is preferably a PCB board.

[0016] The second objective of this invention is to provide a method for disassembling and assembling a convenient plate assembly / disassembly mechanism, comprising the following steps: First, assemble the assembly / disassembly mechanism and the fixing base 17 to form an assembly / disassembly component. Install a set of assembly / disassembly components on both sides of the plate 18, so that the protrusion 9 at the bottom of the locking upper base 3 is engaged in the groove 14 on the side of the plate 18. Rotate the locking upper base 3 to drive the plate 18 to move linearly, so that the end of the plate 18 is engaged in or withdrawn from the connector 19, thereby realizing the assembly / disassembly conversion of the plate 18.

[0017] This invention utilizes a boss at the bottom of the locking upper seat to move the PCB board. Under the combined action of a rotating shaft and large and small springs, the PCB board remains stable, allowing it to move only in a straight line, thus achieving locking and unlocking with the connector. This convenient assembly and disassembly mechanism is not only suitable for PCB boards but also for all other materials with grooves that require parallel sliding fixation.

[0018] Compared with the prior art, the convenient disassembly and assembly mechanism and its disassembly and assembly method provided by the present invention have the following beneficial effects: (1) simple structure, easy operation, high disassembly and assembly efficiency, and good fixing and locking effect; (2) can quickly complete the locking and unlocking state switching of the PCB board in a short time using a simple method, so that the PCB board can not only be stably locked in the preset position, but also does not need to repeatedly disassemble and assemble the base when disassembling the circuit board; (3) the fixed base can ensure the parallelism of the PCB board when it moves, and ensure the correct assembly with the connector. Attached Figure Description

[0019] Figure 1 An exploded view of the convenient disassembly and assembly mechanism provided by the present invention;

[0020] Figure 2 A structural diagram showing the locking mechanism in various directions;

[0021] Figure 3 A structural diagram showing the locking mechanism in various directions;

[0022] Figure 4 This is a schematic diagram of the PCB board structure;

[0023] Figure 5 An installation diagram of the convenient disassembly and assembly mechanism provided by the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the fixed base;

[0025] Figure 7 This is a schematic diagram illustrating the application of the convenient disassembly and assembly mechanism provided by the present invention for fixing a PCB board.

[0026] In the diagram, 1-shaft, 2-shield, 3-locking upper seat, 4-large spring, 5-small spring, 6-steel ball, 7-locking lower seat, 8-base, 9-bore, 10-locking post, 11-pressing surface, 12-contact surface I, 13-contact surface II, 14-groove, 15-connecting hole, 16-slot, 17-fixed seat, 18-plate, 19-plug connector, 20-screw. Detailed Implementation

[0027] To enable those skilled in the art to fully understand the technical solution and beneficial effects of the present invention, the following description is provided in conjunction with specific embodiments and accompanying drawings.

[0028] like Figure 1 The illustrated convenient disassembly and assembly mechanism mainly includes a rotating shaft 1, a washer 2, a locking upper seat 3, a large spring 4, a small spring 5, a steel ball 6, a locking lower seat 7, a base 8, a boss 9, a locking pin 10, a pressing surface 11, a contact surface I 12, a contact surface II 13, a groove 14, a connecting hole 15, and a slot 16. This convenient disassembly and assembly mechanism needs to be used in conjunction with a fixed base 17 to facilitate faster and more efficient disassembly and assembly of the sheet metal 18. The fixed base 17 is elongated and has recessed connecting holes 15 at both ends and in the middle, with U-shaped slots 16 between the connecting holes 15. When the sheet metal 18 is placed horizontally, it can move linearly within the slots 16 without being obstructed by the screws 20 in the connecting holes 15.

[0029] The lower locking seat 7 is fixed to the base 8, and the base 8 and the fixed seat 17 are fixed to the equipment or support surface. The upper locking seat 3 is arranged opposite to the lower locking seat 7. The upper locking seat 3 has a stepped hole, and the lower locking seat 7 has a screw hole. The large spring 4 is placed in the stepped hole of the upper locking seat 3, and the small spring 5 is placed between the upper locking seat 3 and the lower locking seat 7. The rotating shaft 1 passes through the upper locking seat 3, the large spring 4, the small spring 5, and the lower locking seat 7 and then enters the screw hole, thereby connecting the upper locking seat 3 and the lower locking seat 7 together and allowing them to rotate relative to each other. At this time, both the large and small springs are in a compressed state. In order to reduce friction during rotation, three grooves are provided on the bottom surface of the upper locking seat 3 and the top surface of the lower locking seat 7. Three steel balls 6 of the same size are placed in the grooves. The rolling of the steel balls reduces the force required to rotate the upper locking seat 3 and reduces the friction between the upper and lower locking seats.

[0030] A locking pin 10 (similar to a handle) for easy rotation is provided on the side of the upper locking seat 3, and a boss 9 (similar to a cylinder) is provided on the bottom surface of the upper locking seat 3. Meanwhile, a horizontal pressing surface 11 and two vertical contact surfaces I12 and II13 are provided on the upper surface of the lower locking seat 7, with the two contact surfaces forming a certain angle. When the boss 9 of the upper locking seat 3 rotates, it switches between these two contact surfaces to determine whether it has rotated to the correct position.

[0031] The method of disassembling and assembling PCB boards using this convenient disassembly and assembly mechanism is as follows: Figure 4-5As shown in Figure 7. First, determine the installation position of the PCB board. Then, arrange a set of convenient disassembly and assembly mechanism + fixing base combination on both sides of the installation position. Use screws 20 to fix the base 8 of the convenient disassembly and assembly mechanism and the fixing base 17. Next, align the PCB board and place it on the installation position. Tighten the rotating shaft 1 downwards so that the boss 9 at the bottom of the locking upper base 3 is inserted into the grooves 14 on both sides of the PCB board, and ensure that the side and bottom surfaces of the PCB board are in close contact with the pressing surface 11 and end face of the locking lower base 7. When it is necessary to lock the PCB board, rotate the locking pin 10 to drive the locking upper base 3 to rotate. Under the restriction and transmission of the groove 14, the boss 9 at the bottom of the locking upper base 3 drives the PCB board to move linearly to the right and insert it into the connector at the right end. When the boss 9 switches from the previous contact surface (such as contact surface I) to another contact surface (such as contact surface II), it indicates that the rotation is in place. When it is necessary to unlock the PCB board, simply rotate the locking pin 10 and the locking upper base 3 in the opposite direction to make the PCB board move linearly to the left and exit from the connector.

[0032] The convenient disassembly and assembly mechanism provided by this invention is not only applicable to PCB boards, but also to plastic boards, metal boards, wooden boards, etc. with grooves 14 on the side, and can also realize the quick disassembly and assembly of these boards.

Claims

1. A convenient assembly and disassembly mechanism for sheet metal, characterized in that: The disassembly and assembly mechanism includes a rotating shaft (1), a locking upper seat (3), and a locking lower seat (7). The locking upper seat (3) is fixedly connected to the locking lower seat (7) through the rotating shaft (1) and can rotate. The plate (18) is snapped between the locking upper seat (3) and the locking lower seat (7) and can be driven by the locking upper seat (3) to make a linear motion to insert into the connector (19) or to exit from the connector (19). The disassembly and assembly mechanism also includes a fixing seat (17), which is a long strip with recessed connecting holes (15) at both ends and in the middle. A U-shaped slot (16) is provided between the connecting holes (15). After the plate (18) is placed horizontally, it can move linearly in the slot (16) and will not be blocked by the screws (20) in the connecting holes (15). The disassembly and assembly mechanism also includes a large spring (4), a small spring (5) and a base (8), with the lower locking seat (7) fixed on the base (8); the upper locking seat (3) and the lower locking seat (7) are arranged opposite to each other, with a stepped hole on the upper locking seat (3) and a screw hole on the lower locking seat (7); the large spring (4) is placed in the stepped hole of the upper locking seat (3), and the small spring (5) is placed between the upper locking seat (3) and the lower locking seat (7). The rotating shaft (1) passes through the upper locking seat (3), the large spring (4), the small spring (5), and the lower locking seat (7) and then enters the screw hole, thereby connecting the upper locking seat (3) and the lower locking seat (7) together and allowing them to rotate relative to each other. At this time, both the large and small springs are in a compressed state. The disassembly and assembly mechanism also includes steel balls (6), and grooves are provided on the bottom surface of the upper locking seat (3) and the top surface of the lower locking seat (7), and the steel balls (6) are engaged in the grooves; A locking pin (10) is provided on the side of the locking upper seat (3). Rotating the locking pin (10) can drive the locking upper seat (3) to rotate. A boss (9) is provided at the bottom of the locking upper seat (3), and a groove (14) matching the boss (9) is provided on the side of the plate (18). The board material (18) includes plastic board, cardboard, wood board, metal board, glass board or PCB board; The disassembly and assembly method of the plate assembly and disassembly mechanism includes the following steps: install the disassembly and assembly mechanism on both sides of the plate (18), insert the boss (9) at the bottom of the locking upper seat (3) into the groove (14) on the side of the plate (18), rotate the locking upper seat (3) to drive the plate (18) to move linearly, so that the end of the plate (18) is inserted into the connector (19) or withdrawn from the connector (19), thereby realizing the locking or unlocking of the plate.

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