Paster nixie tube

Abstract

The utility model discloses a patch nixie tube, which relates to the technical field of nixie tubes and comprises a PCB (printed circuit board), a shell, limiting blocks and a pressing block, the shell is arranged on the PCB, the limiting blocks are symmetrically arranged on the outer side of the shell, limiting frames which are symmetrically distributed are fixedly arranged on the outer side of the PCB, the limiting blocks are arranged in the limiting frames, placing grooves which are symmetrically distributed are arranged in the limiting frames, and the pressing block is arranged in the placing grooves. A fixing rod is fixedly arranged in the placing groove, a sliding plate is fixedly arranged at the top of the fixing rod, a sliding cavity is formed in the bottom of the abutting block, the sliding plate is arranged in the sliding cavity in a sliding mode, the fixing rod penetrates through the bottom of the sliding cavity, a pressure spring piece is arranged at the bottom of the sliding plate, and the bottom of the pressure spring piece abuts against the bottom of the sliding cavity; according to the utility model, the limiting blocks which are symmetrically distributed are arranged on the outer side of the shell, when the shell is arranged on the PCB, the limiting blocks are arranged in the limiting frames, then the pressing blocks are driven by the pressure spring pieces to abut against the tops of the limiting blocks, and the limiting blocks are limited on the PCB, so that the shell is connected with the PCB.

Description

Technical Field

[0001] This utility model relates to the field of digital tube technology, specifically to a surface-mount digital tube. Background Technology

[0002] A digital tube, also known as a glow tube, is an electronic device that can display numbers and other information. The glass tube contains an anode made of a metal mesh and multiple cathodes. Most digital tube cathodes are shaped like numbers. The tube is filled with a low-pressure gas, usually neon with some mercury or argon. When a cathode is charged, the digital tube will emit colored light, depending on the gas inside the tube, usually orange or green.

[0003] Publication No. CN217467928U discloses an LED chip digital tube, including a shell and a PCB base plate. The PCB base plate has a groove. Extension plates are fixed on both sides of the shell. The extension plates are integrated with the shell and are inserted into the groove. The shell is glued to the PCB base plate through the extension plates. A potting tube is provided on one side of the shell. The potting tubes are symmetrically arranged about the middle of the shell. The lower part of the potting tube has a potting port opened inside the extension plate. The potting tube is connected to the potting port.

[0004] The above-mentioned device uses glue to bond and fix the PCB base plate and the housing. The housing bonded by glue is not easy for personnel to disassemble when the device is damaged, which will affect the efficiency of personnel to inspect and repair the internal components of the digital tube. Therefore, we propose a surface mount digital tube. Utility Model Content

[0005] This utility model addresses the shortcomings of existing technologies by providing a surface-mount digital tube that uses a pressing block to limit the limiting block on the PCB board to assemble the housing onto the PCB board, making it easy to disassemble.

[0006] In order to solve the above-mentioned technical problems, the present invention solves the problem that the use of glue to bond the shell and PCB board in the prior art is not convenient for subsequent disassembly and inspection through the following technical solution.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A surface-mount digital tube includes a PCB board and a housing, a limiting block and a pressing block. The housing is disposed on the PCB board, and the limiting blocks are symmetrically disposed on the outer side of the housing. A symmetrically distributed limiting frame is fixedly disposed on the outer side of the PCB board, and the limiting blocks are disposed inside the limiting frame. The limiting frame has symmetrically distributed placement slots inside, which are disposed on the PCB board. A fixing rod is fixedly disposed in the placement slot, and a sliding plate is fixedly disposed on the top of the fixing rod. A sliding cavity is provided at the bottom of the pressing block, and the sliding plate is slidably disposed in the sliding cavity. The fixing rod passes through the bottom of the sliding cavity, and a compression spring is provided at the bottom of the sliding plate, with the bottom of the compression spring abutting against the bottom of the sliding cavity.

[0009] Preferably, the pressing block is L-shaped, and the sliding cavity is arranged at the vertical part of the pressing block.

[0010] Preferably, the vertical part of the pressing block is cylindrical, and the vertical part of the pressing block is rotationally connected with the inside of the placing groove.

[0011] Preferably, the compression spring member comprises two annular pads and a compression spring, the compression spring is fixedly arranged between the two annular pads, and the annular pads are arranged on the fixed rod and rotationally connected with the fixed rod.

[0012] Preferably, the height of the limiting frame is greater than the height of the limiting block, and the top of the limiting frame is fixedly provided with a stop block.

[0013] Preferably, the inside width of the limiting frame is equal to the length of the limiting block.

[0014] Preferably, the horizontal part of the pressing block is provided with a through hole, the limiting block is provided with symmetrically distributed auxiliary holes, the auxiliary holes are matched with the through hole, the inside of the limiting frame is provided with symmetrically distributed positioning grooves, the positioning grooves are arranged on the PCB, the positioning grooves are provided with positioning rods, and the positioning rods pass through the through hole and the auxiliary holes.

[0015] Preferably, the outside of the bottom end of the positioning rod is provided with external threads, and the inside of the positioning groove is provided with internal threads matched with the external threads.

[0016] Preferably, the top end of the positioning rod is fixedly provided with a screw block.

[0017] Preferably, the screw block is hexagonal.

[0018] Compared with the prior art, the shell has the following beneficial effects:

[0019] When the shell is placed on the PCB, the limiting block is placed in the limiting frame, the pressing block is driven by the compression spring member to abut against the top of the limiting block, the limiting block is limited on the PCB, and the shell and the PCB are connected.

[0020] By setting the connection mode of the pressing block and the limiting frame as rotationally connected, the pressing block can be rotated to a position not affecting the embedding of the limiting block in the limiting frame when the shell and the PCB are assembled, so that the shell and the PCB are conveniently assembled. DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0022] Figure 1 It is the whole structure schematic diagram of the utility model;

[0023] Figure 2 It is the shell and PCB board separation state structure schematic diagram of the utility model;

[0024] Figure 3 It is the utility model limiting frame part local section view schematic diagram;

[0025] Figure 4 It is the utility model abutting block part local section view schematic diagram;

[0026] Figure 5 It is the utility model positioning rod installation position schematic diagram;

[0027] Figure 6 It is the utility model limiting block and limiting frame relative position schematic diagram.

[0028] Figure number explanation: 1, PCB board;2, shell;3, limiting block;4, limiting frame;5, abutting block;6, placing groove;7, sliding plate;8, fixed rod;9, sliding cavity;10, compression spring piece;11, annular pad;12, compression spring;13, stop block;14, through hole;15, auxiliary hole;16, positioning groove;17, positioning rod;18, external thread;19, screw block. DETAILED DESCRIPTION

[0029] The utility model will be described in further detail below in combination with the drawings. EMBODIMENT

[0030] Please refer to Figures 1-6 A kind of patch digital tube, including PCB board and shell 2, limiting block 3 and abutting block 5, shell 2 is located on PCB board 1, limiting block 3 is symmetrically arranged on the outside of shell 2, the limiting block 3 is arranged in the inside of limiting frame 4, limiting frame 4 is internally provided with symmetrically distributed placing groove 6, placing groove 6 is arranged on PCB board 1, fixed rod 8 is fixedly arranged in placing groove 6, sliding plate 7 is fixedly arranged at the top of fixed rod 8, sliding cavity 9 is arranged at the bottom of abutting block 5, sliding plate 7 is slidably arranged in sliding cavity 9, sliding plate 7 is embedded around with the inside of sliding cavity 9, guarantee the movement track of sliding plate 7 is vertically upwards and downwards direction, fixed rod 8 penetrates the bottom of sliding cavity 9, sliding plate 7 bottom is provided with compression spring piece 10, the bottom of compression spring piece 10 is abutted on the bottom of sliding cavity 9;

[0031] Compression spring piece 10 includes two annular pads 11 and a compression spring 12, the compression spring 12 is fixedly arranged between the two annular pads 11, annular pad 11 is arranged on fixed rod 8 and is rotatably connected with fixed rod 8, separates compression spring piece 10 with sliding plate 7 and sliding cavity 9, can avoid the existence of compression spring 12 to influence the rotation of abutting block 5.

[0032] Some embodiments of the present application will be described in detail with reference to the drawings as follows:

[0033] Please refer to Figures 1-6 When the shell 2 is placed on the PCB board 1, the limiting block 3 is placed in the limiting frame 4, and then the compression spring 10 drives the pressing block 5 to press against the top of the limiting block 3, thereby limiting the limiting block 3 on the PCB board 1, so as to connect the shell 2 and the PCB board 1.

[0034] The pressing block 5 is L-shaped, and the sliding cavity 9 is arranged at the vertical position of the pressing block 5. The inner side of the L-shaped pressing block 5 can match the outer side of the limiting block 3, so as to ensure that the pressing block 5 vertically exerts force on the limiting block 3 when the pressing block 5 is pressed by the compression spring 12.

[0035] In addition, the vertical position of the pressing block 5 is cylindrical, and the vertical position of the pressing block 5 is rotationally connected with the inner part of the placing groove 6. By setting the connection mode between the pressing block 5 and the limiting frame 4 as rotational connection, the pressing block 5 can be rotated to a position that does not affect the embedding of the limiting block 3 into the limiting frame 4 when assembling the shell 2 and the PCB board 1, thereby facilitating the assembly of the shell 2 and the PCB board 1.

[0036] It is worth noting that the height of the limiting frame 4 is greater than the height of the limiting block 3, and the limiting frame 4 is fixedly provided with a stop block 13 at the top. Before assembling the shell 2 and the PCB board 1, the pressing block 5 is rotated to the top of the limiting frame 4, and the stop block 13 is used to prevent the pressing block 5 from being accidentally rotated into the limiting frame 4, thereby avoiding affecting the normal entry of the limiting block 3 of the shell 2 into the limiting frame 4.

[0037] At the same time, the inner side width of the limiting frame 4 is equal to the length of the limiting block 3, and the limiting block 3 embedded in the limiting frame 4 is extruded and limited by the limiting frame 4, and will not accidentally move in the limiting frame 4.

[0038] In order to improve the limiting and fixing effect of the pressing block 5 on the limiting block 3, the horizontal part of the pressing block 5 is provided with a through hole 14, the limiting block 3 is provided with symmetrically distributed auxiliary holes 15, the auxiliary holes 15 are matched with the through hole 14, the limiting frame 4 is internally provided with symmetrically distributed positioning grooves 16, the positioning grooves 16 are arranged on the PCB board 1, the positioning grooves 16 are internally provided with positioning rods 17, the positioning rods 17 penetrate through the through hole 14 and the auxiliary holes 15, the positioning rods 17 are inserted into the positioning grooves 16, at this time, the positioning rods 17 are inserted into the through hole 14 and the auxiliary holes 15, the position of the pressing block 5 can be fixed and limited, further, the bottom end of the positioning rod 17 is externally provided with external threads 18, the inside of the positioning groove 16 is internally provided with internal threads matched with the external threads 18, the external threads 18 are used to fix the positioning rod 17 in the positioning groove 16, thereby fixing the limiting block 3 between the PCB board 1 and the pressing block 5, fixing and connecting the shell 2 and the PCB board 1, the top end of the positioning rod 17 is fixedly provided with a screw block 19, the screw block 19 is used to block the through hole 14, and the limiting block 3 is pressed on the PCB board 1.

[0039] The connecting mode of the shell 2 and the PCB board 1 will be described below.

[0040] Firstly, the pressing block 5 is pulled upwards, then the pressing block 5 is rotated to a position perpendicular to the limiting frame 4, and the limiting block 3 is placed down, under the action of the compression spring 12, the pressing block 5 is pressed on the limiting frame 4, at this time, the pressing block 5 is limited by the blocking block 13 and cannot be rotated into the limiting frame 4;

[0041] Then, the shell 2 together with the limiting block 3 is placed on the PCB board 1, the limiting block 3 is embedded into the limiting frame 4, then the pressing block 5 is lifted up, the pressing block 5 is rotated to the limiting block 3, and the pressing block 5 is loosened, under the action of the compression spring 12, the pressing block 5 is pressed on the limiting block 3;

[0042] At this time, the through hole 14 of the pressing block 5, the auxiliary hole 15 of the limiting block 3 and the positioning groove 16 on the PCB board 1 are on the same straight line, then the positioning rod 17 is inserted into the through hole 14 of the pressing block 5 until the positioning rod 17 is pressed on the internal threads in the positioning groove 16, the positioning rod 17 is rotated, the external threads 18 at the bottom of the positioning rod 17 are screwed into the positioning groove 16 until the screw block 19 is pressed on the pressing block 5, at this time, through the fixing of the positioning rod 17, the limiting block 3 and the PCB board 1 are fixed together, thereby fixing the shell 2 on the PCB board 1.

[0043] When the shell 2 needs to be disassembled to check the PCB board 1, the positioning rod 17 is only needed to be unscrewed, then the pressing block 5 is moved away from the limiting block 3, the shell 2 can be disassembled from the PCB board 1, which is convenient and fast and will not cause damage to the PCB board 1.

[0044] In the technical scheme, the screw block 19 is hexagonal, the handle can quickly screw the positioning rod 17, and the screwing difficulty of the positioning rod 17 can be increased when there is no tool, so that the positioning rod 17 is prevented from being accidentally taken out from the positioning groove 16.

[0045] It should be understood by those skilled in the art that the above description and the embodiments of the utility model shown in the drawings are only examples and do not limit the utility model. The purpose of the utility model has been completely and effectively achieved. The function and structural principle of the utility model have been shown and described in the embodiments, and the embodiments of the utility model can have any deformation or modification without departing from the principle.

Claims

1. A patch digital tube, comprising: a PCB board (1) and a shell (2) arranged on the PCB board (1); characterized in that further comprising: a limiting block (3) symmetrically arranged outside the shell (2), a limiting frame (4) symmetrically arranged outside the PCB board (1), and the limiting block (3) arranged inside the limiting frame (4); a pressing block (5), the limiting frame (4) is internally provided with symmetrically distributed placing grooves (6), the placing grooves (6) are arranged on the PCB board (1), a fixed rod (8) is fixedly arranged in the placing grooves (6), a sliding plate (7) is fixedly arranged on the top of the fixed rod (8), a sliding cavity (9) is arranged on the bottom of the pressing block (5), the sliding plate (7) is slidably arranged in the sliding cavity (9), the fixed rod (8) penetrates the bottom of the sliding cavity (9), a compression spring (10) is arranged on the bottom of the sliding plate (7), and the bottom of the compression spring (10) abuts against the bottom of the sliding cavity (9).

2. A patch fluorescent tube as claimed in claim 1, characterized in that: The pressing block (5) is L-shaped, and the sliding cavity (9) is arranged on the vertical part of the pressing block (5).

3. A patch fluorescent tube as claimed in claim 2, characterized in that: The vertical part of the pressing block (5) is cylindrical, and the vertical part of the pressing block (5) is rotationally connected with the inside of the placing groove (6).

4. A patch fluorescent tube as claimed in claim 3, characterized in that: The compression spring (10) comprises two annular pads (11) and a compression spring (12), the compression spring (12) is fixedly arranged between the two annular pads (11), and the annular pads (11) are arranged on the fixed rod (8) and rotationally connected with the fixed rod (8).

5. A patch fluorescent tube as claimed in claim 1, wherein: The height of the limiting frame (4) is greater than the height of the limiting block (3), and a stop block (13) is fixedly arranged on the top of the limiting frame (4).

6. A patch fluorescent tube as claimed in claim 1, wherein: The inside width of the limiting frame (4) is equal to the length of the limiting block (3).

7. A patch fluorescent tube as claimed in claim 1, wherein: The horizontal part of the pressing block (5) is provided with a through hole (14), the limiting block (3) is provided with symmetrically distributed auxiliary holes (15), the auxiliary holes (15) are matched with the through hole (14), the limiting frame (4) is internally provided with symmetrically distributed positioning grooves (16), the positioning grooves (16) are arranged on the PCB board (1), a positioning rod (17) is arranged in the positioning grooves (16), and the positioning rod (17) penetrates the through hole (14) and the auxiliary hole (15).

8. A patch fluorescent tube as claimed in claim 7, characterized in that: An external thread (18) is arranged on the bottom end of the positioning rod (17), and an internal thread is arranged in the positioning groove (16) and matched with the external thread (18).

9. A patch fluorescent tube as claimed in claim 8, characterized in that: A screw block (19) is fixedly arranged on the top end of the positioning rod (17).

10. A patch fluorescent tube as claimed in claim 9, characterized in that: The screw block (19) is hexagonal.

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