Circuit board fixing structure

Abstract

The utility model belongs to the technical field of mounting and fixing, and particularly relates to a circuit board fixing structure which comprises a bottom frame, a connecting block and a mounting seat are arranged on the inner side of the bottom frame, a bearing plate is fixedly connected to the inner wall of the bottom frame, a limiting block is slidably connected into the mounting seat, and a guide slope is arranged at the top end of the limiting block. A linkage rod is fixedly connected to one side of the limiting block, a top fixing frame is arranged above the bottom frame, a positioning block and a locking block are arranged on the inner side of the top fixing frame, an extension plate is fixedly connected to the inner wall of the top fixing frame, a sponge pressing piece is fixedly connected to the bottom end of the extension plate, and an extension rod is fixedly connected to the bottom end of the locking block. Through cooperation of the mounting seat, the locking block and other parts, mounting holes do not need to be formed in the circuit board in advance, the circuit board fixing device can be matched with circuit boards of different sizes to complete fixing work, during dismounting, tools are not needed, dismounting work can be rapidly completed, and convenience is provided for workers.

Description

TECHNICAL FIELD

[0001] The utility model belongs to installation fixed technical field, specifically related to a circuit board fixed structure. BACKGROUND

[0002] The circuit board has the effect of providing electrical connection for equipment, and needs to be installed in the equipment during use. Since installation holes are generally reserved on the circuit board, workers can fix the circuit board in the appropriate position by bolts during installation and fixation. However, when the circuit board needs to be repaired, replaced or upgraded later, workers need to use a screwdriver to disassemble the circuit board. In actual application, for example, the equipment such as a fan has many electrical elements and cables in the equipment, which limits the operation space and makes it difficult to operate the screwdriver, thereby making it inconvenient for workers to disassemble. UTILITY MODEL CONTENTS

[0003] The utility model provides a circuit board fixed structure, which can not only adapt to circuit boards of different sizes to meet the fixing requirements, but also ensure the convenience of disassembling the circuit board for workers.

[0004] The utility model provides the following technical scheme: including bottom frame, the inside of bottom frame is equipped with connecting block and mounting seat, the inside wall of bottom frame is fixedly connected with the supporting plate, the inside of mounting seat is slidably connected with the limit block, the top of limit block is equipped with the guide slope, the side of limit block is fixedly connected with the linkage rod, the top of bottom frame is equipped with the top fixed frame, the inside of top fixed frame is equipped with the locating block and the locking block, the inside wall of top fixed frame is fixedly connected with the extension plate, the bottom of extension plate is fixedly connected with the sponge pressure piece, the bottom of locking block is fixedly connected with the extension rod, the limit block is slidably connected in the extension rod.

[0005] Among them, the connecting block top is equipped with the alignment slot, the bottom of locating block is fixedly connected with the guide rod, and the guide rod slides in the alignment slot.

[0006] Among them, the inside of mounting seat is slidably connected with the push block, and the position of push block corresponds to the extension rod.

[0007] Among them, the inside of mounting seat is equipped with the installation slot, and the push block and the extension rod slide in the installation slot.

[0008] Among them, the inside of extension rod is equipped with the locking slot, and the limit block is slidably connected in the extension rod through the locking slot.

[0009] The adjusting rod is fixedly connected to the outer wall of the connecting block, the mounting seat, the positioning block and the locking block.

[0010] The utility model discloses beneficial effects are: through the cooperation of mounting seat and locking block etc.

[0011] The parts not involved in the device are the same as or can be realized by the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0013] Figure 2 It is the structure schematic diagram of top fixed frame in the utility model;

[0014] Figure 3 It is the disassembly structure schematic diagram of top fixed frame in the utility model;

[0015] Figure 4 It is the section structure schematic diagram of mounting seat in the utility model.

[0016] In the drawing: 1, bottom frame; 11, connecting block; 111, alignment slot; 12, support plate; 2, mounting seat; 21, limit block; 211, guide slope; 22, linkage rod; 23, push block; 24, installation groove; 3, top fixed frame; 31, positioning block; 311, guide rod; 32, extension plate; 33, sponge pressing piece; 4, locking block; 41, extension rod; 42, locking groove; 5, adjusting rod; 51, threaded block. DETAILED DESCRIPTION

[0017] Please refer to Figures 1-4 The utility model provides the following technical scheme: including bottom frame 1, bottom frame 1 inside is equipped with connecting block 11 and mounting seat 2, bottom frame 1 inner wall is fixedly connected with support plate 12, mounting seat 2 inside is slidably connected with limit block 21, limit block 21 top is equipped with guide slope 211, limit block 21 one side is fixedly connected with linkage rod 22, bottom frame 1 top is equipped with top fixed frame 3, top fixed frame 3 inside is equipped with positioning block 31 and locking block 4, top fixed frame 3 inner wall is fixedly connected with extension plate 32, and extension plate 32 bottom end is fixedly connected with sponge pressing piece 33, and locking block 4 bottom end is fixedly connected with extension rod 41, and limit block 21 is slidably connected in the inside of extension rod 41.

[0018] In the embodiment: the bottom frame 1 is used for supporting and connecting various components, so as to complete the installation and fixation of the circuit board through the cooperation of other components. The worker can fix the bottom frame 1 in the appropriate position inside the equipment by means of bolts and the like. The connecting block 11 and the mounting seat 2 provided on the inner side of the bottom frame 1 are used for connecting the four bottom frames 1, and the worker can adjust the space on the inner side of the several bottom frames 1 by sliding the several bottom frames 1. The inner wall of the bottom frame 1 is fixedly provided with a supporting plate 12. By adjusting the space on the inner side of the bottom frame 1, the worker can place circuit boards of different sizes inside the bottom frame 1. The supporting plate 12 will bear the circuit board. The top fixing frame 3 is provided above the bottom frame 1. The number and position of the top fixing frame 3 correspond to those of the bottom frame 1. The positioning block 31 and the locking block 4 provided on the inner side of the top fixing frame 3 are used for connecting the several top fixing frames 3. The worker can make the positions of the several top fixing frames 3 correspond to those of the several bottom frames 1 respectively by sliding the several top fixing frames 3, so that the worker can place the top fixing frame 3 on the top end of the bottom frame 1. The inner side of the top fixing frame 3 is fixedly provided with an extension plate 32, and the bottom end of the extension plate 32 is fixedly provided with a sponge pressing piece 33. The extension plate 32 and the sponge pressing piece 33 will press the four corner positions on the top end of the circuit board to complete the pressing and fixation of the circuit board. When the top fixing frame 3 is placed on the top end of the bottom frame 1, the extension rod 41 fixedly provided at the bottom end of the locking block 4 will slide into the mounting seat 2. When the extension rod 41 is inserted into the mounting seat 2, it will contact the limiting block 21. The top end of the limiting block 21 is provided with a guide slope 211, so that the extension rod 41 drives the limiting block 21 to move horizontally in the process of vertical downward movement. The limiting block 21 will drive the connecting rod 22 to move synchronously. The outer wall of the connecting rod 22 is provided with a spring, so that the spring on the outer wall of the connecting rod 22 will be compressed and stored when the connecting rod 22 slides horizontally. When the extension rod 41 slides to the appropriate position, the spring on the outer wall of the connecting rod 22 will drive the limiting block 21 to move through the elastic release force, so that the limiting block 21 is inserted into the extension rod 41, thereby fixing the locking block 4 and the extension rod 41. The bottom frame 1 and the top fixing frame 3 can continuously complete the fixation of the circuit board. Through the above fixing mode, the circuit board does not need to be pre-drilled, thereby improving the production efficiency of the circuit board and ensuring the overall structural strength of the circuit board. When the worker needs to disassemble the circuit board, the limiting block 21 can be slid out of the extension rod 41 by horizontally sliding the connecting rod 22, thereby canceling the fixation of the locking block 4. The worker can remove the top fixing frame 3 above the circuit board to take out the circuit board, thereby quickly and conveniently completing the disassembly of the circuit board.

[0019] The top end of the connecting block 11 is provided with a positioning groove 111, and the bottom end of the positioning block 31 is fixedly connected with a guide rod 311 which is slidably arranged in the positioning groove 111; the positioning groove 111 provided at the top end of the connecting block 11 is used for providing space for the insertion of the guide rod 311, so that when the staff member slides the plurality of bottom frames 1 and the plurality of top fixing frames 3 to the appropriate positions and places the top fixing frame 3 on the top end of the bottom frame 1 to adapt to the installation of circuit boards of different sizes, the guide rod 311 will be slid into the positioning groove 111, so that the position of the positioning block 31 corresponds to the connecting block 11, thereby ensuring that the positions of the bottom frame 1 and the top fixing frame 3 correspond to each other, and ensuring that the bottom frame 1 and the top fixing frame 3 can stably complete the fixing work of the circuit board.

[0020] The inside of the mounting seat 2 is slidably connected with a pushing block 23, and the position of the pushing block 23 corresponds to the expansion rod 41; the sliding pushing block 23 in the inside of the mounting seat 2 is used for pushing the expansion rod 41 which is slid into the inside of the mounting seat 2 out, and a spring is arranged between the pushing block 23 and the inner wall of the mounting seat 2; when the staff member inserts the expansion rod 41 into the inside of the mounting seat 2, the expansion rod 41 will drive the pushing block 23 to move synchronously in the process of being slid vertically downward, so that the spring below the pushing block 23 is compressed to store energy; when the staff member slides the connecting rod 22 to cancel the constraint and limitation of the expansion rod 41 by the limiting block 21, the pushing block 23 will push the expansion rod 41 out of the inside of the mounting seat 2 under the elastic release force of the spring, so as to facilitate the staff member to remove the top fixing frame 3 and the locking block 4 from above the bottom frame 1, and to provide convenience for the staff member to take out the circuit board inside the bottom frame 1.

[0021] The inside of the mounting seat 2 is provided with a mounting groove 24, and the pushing block 23 and the expansion rod 41 are slidably arranged in the mounting groove 24; the mounting groove 24 provided in the inside of the mounting seat 2 is used for providing space for the sliding of the pushing block 23 and the expansion rod 41, so that the expansion rod 41 can be inserted into the inside of the mounting seat 2, and the position of the expansion rod 41 corresponds to the pushing block 23, so that the pushing block 23 can push the expansion rod 41 to move, so that the staff member can remove the top fixing frame 3 from above the bottom frame 1.

[0022] The inside of the expansion rod 41 is provided with a locking groove 42, and the limiting block 21 is slidably connected in the inside of the expansion rod 41 through the locking groove 42; the locking groove 42 provided in the inside of the expansion rod 41 is used for providing space for the insertion of the limiting block 21, so that when the staff member slides the expansion rod 41 into the inside of the mounting seat 2 and drives the limiting block 21 to move, the limiting block 21 will be inserted into the inside of the locking groove 42 after the expansion rod 41 moves to the position corresponding to the locking groove 42 and the limiting block 21, so as to complete the constraint and limitation of the expansion rod 41, so as to ensure that the bottom frame 1 and the top fixing frame 3 can be fixed relative to each other to complete the fixing work of the circuit board.

[0023] The adjusting rods 5 fixedly connected to the outer walls of the connecting blocks 11, the mounting seats 2, the positioning blocks 31 and the locking blocks 4 are used for connecting the connecting blocks 11, the mounting seats 2 and the bottom frames 1 and connecting the positioning blocks 31, the locking blocks 4 and the top fixing frames 3, so that the workers can adjust the bottom frames 1 and the top fixing frames 3 to appropriate positions according to the size of the circuit board to be fixed, and the threaded blocks 51 screwed in the bottom frames 1 and the top fixing frames 3 can be rotated to extrude and fix the adjusting rods 5, so that the inner spaces of the bottom frames 1 and the top fixing frames 3 can continuously keep corresponding to the size of the circuit board, thereby ensuring the stability when the circuit board is fixed.

[0024] The working principle and use process of the utility model: when the workers need to fix the circuit board, the workers can first adjust the bottom frames 1 and the top fixing frames 3 according to the actual size of the circuit board, so that the inner spaces of the bottom frames 1 and the top fixing frames 3 correspond to the size of the circuit board, then the workers can rotate the threaded blocks 51 to fix the sizes of the inner spaces of the bottom frames 1 and the top fixing frames 3, then the workers can install the bottom frames 1 in the equipment through bolts, place the circuit board in the inner side of the bottom frame 1, and then the workers can prevent the top fixing frame 3 from the top end of the bottom frame 1, the sponge pressing piece 33 will press the circuit board, and the top fixing frame 3 will be moved above the bottom frame 1, the expansion rod 41 fixed at the bottom end of the locking block 4 will be inserted into the mounting seat 2, the expansion rod 41 will contact the limiting block 21 and drive the limiting block 21 to move horizontally, after the expansion rod 41 is inserted into the appropriate position, the limiting block 21 will move into the expansion rod 41 to constrain and fix the expansion rod 41, so as to fix the circuit board between the bottom frame 1 and the top fixing frame 3, thereby completing the installation and fixing work of the circuit board, when the workers need to disassemble the circuit board, the workers can horizontally pull the connecting rod 22, so that the connecting rod 22 drives the limiting block 21 to slide out of the expansion rod 41, at this time, the pushing block 23 will move vertically upwards to push the expansion rod 41 to slide out of the mounting seat 2, so that the workers can remove the top fixing frame 3 from above the bottom frame 1, thereby taking out the circuit board in the inner side of the bottom frame 1, and completing the disassembly work of the circuit board.

Claims

1. A circuit board fixing structure, comprising a bottom frame (1), characterized in that: The bottom frame (1) is provided with a connecting block (11) and a mounting base (2) on its inner side. A support plate (12) is fixedly connected to the inner wall of the bottom frame (1). A limiting block (21) is slidably connected inside the mounting base (2). A guide ramp (211) is provided at the top of the limiting block (21). A connecting rod (22) is fixedly connected to one side of the limiting block (21). A top fixing frame (3) is provided above the bottom frame (1). A positioning block (31) and a locking block (4) are provided inside the top fixing frame (3). An extension plate (32) is fixedly connected to the inner wall of the top fixing frame (3). A sponge pressure plate (33) is fixedly connected to the bottom end of the extension plate (32). An extension rod (41) is fixedly connected to the bottom end of the locking block (4). The limiting block (21) is slidably connected inside the extension rod (41).

2. The circuit board fixing structure according to claim 1, characterized in that: The top of the connecting block (11) is provided with an alignment groove (111), and the bottom of the positioning block (31) is fixedly connected with a guide rod (311), which slides inside the alignment groove (111).

3. The circuit board fixing structure according to claim 1, characterized in that: The mounting base (2) has a sliding connection to a push block (23), the position of which corresponds to the extension rod (41).

4. The circuit board fixing structure according to claim 3, characterized in that: The mounting base (2) has a mounting groove (24) inside, and the push block (23) and the extension rod (41) slide inside the mounting groove (24).

5. The circuit board fixing structure according to claim 1, characterized in that: The extension rod (41) has a locking groove (42) inside, and the limiting block (21) is slidably connected to the inside of the extension rod (41) through the locking groove (42).

6. The circuit board fixing structure according to claim 1, characterized in that: The connecting block (11), the mounting base (2), the positioning block (31) and the locking block (4) are all fixedly connected with adjusting rods (5), and the bottom frame (1) and the top fixing bracket (3) are all screwed with threaded blocks (51).

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