CN210667629U

CN210667629U - Liquid crystal display module for industrial control character liquid crystal screen

Info

Publication number: CN210667629U
Application number: CN201922379800.XU
Authority: CN
Inventors: 常东
Original assignee: Langzhong Hangjing Display Technology Co Ltd
Current assignee: Langzhong Hangjing Display Technology Co Ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-06-02
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses a liquid crystal display module for industrial control character LCD screen, including PCB board, display screen shell and mounting box, the both ends symmetry of PCB board has seted up first recess, it is provided with the slide to slide in the first recess, the medial surface of slide is fixed and is provided with first slide bar, the other end of first slide bar slides and imbeds in the PCB board, and the surface sliding sleeve of first slide bar is equipped with first reset spring, the both ends of first reset spring respectively with PCB board and slide fixed connection, the lateral surface of slide is fixed and is provided with first fixed pin, the internal surface symmetry of mounting box has seted up the pinhole; through design slide and first fixed pin, pinch the slide at PCB board both ends to with the bottom of PCB board embedding mounting box, make the pinhole in first fixed pin and the mounting box align, can realize improving the packaging efficiency to the quick fixed of PCB board, and be convenient for dismantle fast and overhaul or change.

Description

Liquid crystal display module for industrial control character liquid crystal screen

Technical Field

The utility model belongs to the technical field of the liquid crystal display module, concretely relates to a liquid crystal display module for industrial control character LCD screen.

Background

The industrial control liquid crystal screen is a liquid crystal screen used on industrial control equipment, a liquid crystal module is a display component of a power terminal, an instrument and the like, generally comprises an LCD screen, an LED backlight plate, a PCB plate, a shell and the like, the principle of liquid crystal display is that a backlight assembly emits uniform surface light, the light is transmitted to eyes of people through the liquid crystal screen, and the screen is used for processing the light according to pixels so as to display images.

The liquid crystal display module of the existing industrial control character liquid crystal screen has the advantages that the liquid crystal display module needs to be installed in a shell through screws when being installed, the screws are small, operation is inconvenient, installation is troublesome, installation efficiency is low, and quick disassembly and maintenance are inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a liquid crystal display module for industrial control character LCD screen to solve the liquid crystal display module of the current industrial control character LCD screen that proposes in the above-mentioned background art, there is liquid crystal display module and need install it in the shell through the screw when the installation, because the screw is less, be not convenient for operate, the installation is comparatively troublesome, and the installation effectiveness is low, and is not convenient for dismantle the problem of overhauing fast.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a liquid crystal display module for industrial control character LCD screen, includes PCB board, display screen shell and mounting box, first recess has been seted up to the both ends symmetry of PCB board, it is provided with the slide to slide in the first recess, the fixed first slide bar that is provided with of medial surface of slide, the other end of first slide bar slides in the embedding PCB board, and the surface slip cover of first slide bar is equipped with first reset spring, first reset spring's both ends respectively with PCB board and slide fixed connection, the fixed first fixed pin that is provided with of lateral surface of slide, the pinhole has been seted up to the internal surface symmetry of mounting box, first fixed pin cooperatees with the pinhole, spacing hole has been seted up in the upper surface four corners of PCB board, the fixed gag lever post that is provided with in interior bottom surface four corners of mounting box, spacing hole and gag lever post sliding fit.

Preferably, the last fixed surface of PCB board is provided with four baffles, the baffle is the rectangle distribution, and the fixed second fixed pin that is provided with of medial surface of baffle, the second recess has been seted up to the lateral surface of display screen shell, it is provided with the slider to slide in the second recess, the fixed second slide bar that is provided with of embedding end of slider, the other end of second slide bar slides in the embedding display screen shell, and the surface cover of second slide bar is equipped with second reset spring, the lower fixed surface of slider is provided with foraminiferous fixed plate, foraminiferous fixed plate cooperatees with the second fixed pin.

Preferably, the end of the second fixing pin is an arc surface, and the second fixing pin is in clearance fit with the fixing plate with the hole.

Preferably, the lower surface of PCB board is provided with the PCB board and compresses tightly the subassembly, the subassembly is compressed tightly to the PCB board includes solid fixed cylinder, third reset spring and traveller, gu fixed cylinder sets firmly the lower surface at the PCB board, the one end of traveller slides and imbeds in the solid fixed cylinder, the one end of third reset spring sets firmly the roof in gu fixed cylinder, the other end and the embedding end fixed connection of traveller, and the pinhole of mounting box internal surface is the bar blind hole of vertically seting up.

Preferably, a limiting plate is fixedly arranged at the joint of the third reset spring and the sliding column, the limiting plate is in sliding fit with the fixed cylinder, a circular plug is arranged at the open end of the fixed cylinder, and the sliding column is in clearance fit with the circular plug.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) through design slide and first fixed pin, pinch the slide at PCB board both ends to with the bottom of PCB board embedding mounting box, make the pinhole in first fixed pin and the mounting box align, can realize improving the packaging efficiency to the quick fixed of PCB board, and be convenient for dismantle fast and overhaul or change.

(2) Through design second fixed pin and foraminiferous fixed plate, inwards pinch the slider and laminate the display screen shell at the upper surface of PCB board, can with PCB board and display screen shell fixed mounting, easy dismounting sets up the PCB board and compresses tightly the subassembly, cushions the shock attenuation to the PCB board, and protection liquid crystal display module does not receive the damage.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the PCB of the present invention;

FIG. 3 is a side view of the PCB and the display screen housing of the present invention;

FIG. 4 is a connection structure diagram of the PCB pressing assembly of the present invention;

in the figure: 1. a PCB board; 2. a display screen housing; 3. a first groove; 4. a slide plate; 5. a first fixing pin; 6. a second groove; 7. a slider; 8. a second slide bar; 9. a second return spring; 10. a first slide bar; 11. a first return spring; 12. a limiting hole; 13. a baffle plate; 14. a second fixing pin; 15. the PCB board compresses tightly the assembly; 16. a fixed plate with holes; 17. a fixed cylinder; 18. a third return spring; 19. a limiting plate; 20. a traveler; 21. and (5) mounting the box.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-4, the present invention provides a technical solution: a liquid crystal display module for an industrial control character liquid crystal screen comprises a PCB (printed circuit board) 1, a display screen shell 2 and a mounting box 21, wherein two ends of the PCB 1 are symmetrically provided with first grooves 3, sliding plates 4 are arranged in the first grooves 3 in a sliding manner, the inner side surfaces of the sliding plates 4 are fixedly provided with first sliding rods 10, the other ends of the first sliding rods 10 are embedded into the PCB 1 in a sliding manner, the outer surfaces of the first sliding rods 10 are sleeved with first reset springs 11 in a sliding manner, two ends of each first reset spring 11 are respectively fixedly connected with the PCB 1 and the corresponding sliding plate 4, the outer side surfaces of the sliding plates 4 are fixedly welded with first fixing pins 5, the inner surface of the mounting box 21 is symmetrically provided with pin holes, the first fixing pins 5 are matched with the pin holes, four corners of the upper surface of the PCB 1 are provided with limiting holes 12, four corners of the inner bottom surface of the mounting box 21 are fixedly welded with limiting rods, the, inwards pinch the slide 4 at 1 both ends of pressing PCB board for first fixed pin 5 is accomodate to first recess 3 in, again with the bottom of PCB board 1 embedding mounting box 21 and loosen the pressure of pinching of slide 4, in the pinhole of the tip embedding mounting box 21 internal surface of first fixed pin 5, can realize fixing PCB board 1.

In this embodiment, the fixed surface of PCB board 1 is provided with four baffles 13, baffle 13 is the rectangular distribution, and the fixed second fixed pin 14 that is provided with of medial surface of baffle 13, second recess 6 has been seted up to the lateral surface of display screen shell 2, it is provided with slider 7 to slide in the second recess 6, the embedded end welded fastening of slider 7 has second slide bar 8, the other end of second slide bar 8 slides in embedding display screen shell 2, and the surface cover of second slide bar 8 is equipped with second reset spring 9, the lower surface of slider 7 is provided with foraminiferous fixed plate 16, slider 7 and foraminiferous fixed plate 16 are solid as an organic whole, foraminiferous fixed plate 16 cooperatees with second fixed pin 14, inwards pinch-in earlier slider 7 and laminate display screen shell 2 at the upper surface of PCB board 1, then loosen slider 7, can realize the fixed mounting of PCB board 1 and display screen shell 2.

In this embodiment, the tip of second fixed pin 14 sets up to the arc surface, and second fixed pin 14 sets up the arc surface with foraminiferous fixed plate 16 clearance fit, sets up the arc surface, in the through-hole that foraminiferous fixed plate 16 surfaces of the better embedding of second fixed pin 14 of being convenient for was seted up, realizes that the block is fixed.

In this embodiment, the lower surface of PCB board 1 is provided with PCB board compressing assembly 15, PCB board compressing assembly 15 includes a fixed section of thick bamboo 17, third reset spring 18, and traveller 20, a fixed section of thick bamboo 17 sets firmly the lower surface at PCB board 1, the one end of traveller 20 slides and imbeds in the fixed section of thick bamboo 17, the one end of third reset spring 18 sets firmly the interior roof at a fixed section of thick bamboo 17, the other end and traveller 20's the end fixed connection that inlays, and the pinhole of mounting box 21 internal surface is the bar blind hole of vertically seting up, set up PCB board compressing assembly 15, compress assembly 15 through the PCB board and produce an ascending elasticity to PCB board 1, make its fixed fastening.

In this embodiment, the fixed limiting plate 19 that is provided with of junction of third reset spring 18 and traveller 20, limiting plate 19 and a fixed section of thick bamboo 17 sliding fit, the open end of a fixed section of thick bamboo 17 is provided with the ring end cap, traveller 20 and ring end cap clearance fit set up limiting plate 19 and ring end cap, carry out spacingly to traveller 20, avoid it to follow slippage in the fixed section of thick bamboo 17.

The utility model discloses a theory of operation and use flow: through the arrangement of the sliding plate 4 and the first fixing pin 5, when the PCB 1 is installed, the limiting hole 12 is aligned with the limiting rod, then the sliding plates 4 at two ends of the PCB 1 are inwardly pinched to enable the first fixing pin 5 to be accommodated in the first groove 3, then the PCB 1 is embedded into the bottom end of the installation box 21 and is loosened to pinch the sliding plates 4, the sliding plates 4 drive the first fixing pin 5 to slide outwards along the first groove 3 under the action of the first reset spring 11 until the end part of the first fixing pin 5 is embedded into a pin hole in the inner surface of the installation box 21, so that the PCB 1 is quickly fixed, the assembly efficiency is improved, and the disassembly, the overhaul or the replacement are convenient;

through setting up second fixed pin 14 and foraminiferous fixed plate 16, when installing display screen shell 2, earlier inwards pinch pressure slider 7 and laminate display screen shell 2 at PCB board 1's upper surface, then loosen slider 7, slider 7 outwards slides along second recess 6 under second reset spring 9's effect, it cooperatees with second fixed pin 14 to drive foraminiferous fixed plate 16, realize PCB board 1 and display screen shell 2's fixed mounting, and easy operation is convenient, and convenient to detach, set up PCB board and compress tightly subassembly 15, compress tightly subassembly 15 through PCB board and produce an ascending elasticity to PCB board 1, make its fixed fastening, and when liquid crystal display module received vibrations, third reset spring 18 stretches out and draws back and drives PCB board 1 and slides along the small amplitude of bar blind hole, realize the buffering shock attenuation, protect liquid crystal display module not damaged.

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

Claims

1. The utility model provides a liquid crystal display module for industrial control character LCD screen, includes PCB board (1), display screen shell (2) and mounting box (21), its characterized in that: the PCB structure comprises a PCB (1), wherein two ends of the PCB (1) are symmetrically provided with first grooves (3), the first grooves (3) are internally provided with sliding plates (4) in a sliding manner, the inner side surfaces of the sliding plates (4) are fixedly provided with first sliding rods (10), the other ends of the first sliding rods (10) are embedded into the PCB (1) in a sliding manner, the outer surfaces of the first sliding rods (10) are sleeved with first reset springs (11) in a sliding manner, two ends of each first reset spring (11) are respectively fixedly connected with the PCB (1) and the sliding plates (4), the outer side surfaces of the sliding plates (4) are fixedly provided with first fixed pins (5), the inner surface of a mounting box (21) is symmetrically provided with pin holes, the first fixed pins (5) are matched with the pin holes, four corners of the upper surface of the PCB (1) are provided with limiting holes (12), and four corners of the inner bottom surface of, the limiting hole (12) is in sliding fit with the limiting rod.

2. The liquid crystal display module for the industrial control character liquid crystal screen according to claim 1, characterized in that: the last fixed surface of PCB board (1) is provided with four baffles (13), baffle (13) are the rectangle and distribute, and the fixed second fixed pin (14) that is provided with of medial surface of baffle (13), second recess (6) have been seted up to the lateral surface of display screen shell (2), it is provided with slider (7) to slide in second recess (6), the fixed second slide bar (8) that is provided with of embedding end of slider (7), the other end of second slide bar (8) slides and imbeds in display screen shell (2), and the surface cover of second slide bar (8) is equipped with second reset spring (9), the lower fixed surface of slider (7) is provided with foraminiferous fixed plate (16), foraminiferous fixed plate (16) cooperate with second fixed pin (14).

3. The liquid crystal display module for the industrial control character liquid crystal screen according to claim 2, characterized in that: the end part of the second fixing pin (14) is arranged to be an arc surface, and the second fixing pin (14) is in clearance fit with the fixing plate (16) with the hole.

4. The liquid crystal display module for the industrial control character liquid crystal screen according to claim 1, characterized in that: the lower surface of PCB board (1) is provided with PCB board and compresses tightly subassembly (15), PCB board compresses tightly subassembly (15) including solid fixed cylinder (17), third reset spring (18) and traveller (20), gu fixed cylinder (17) sets firmly the lower surface at PCB board (1), the one end of traveller (20) slides and imbeds in solid fixed cylinder (17), the one end of third reset spring (18) sets firmly the interior roof at gu fixed cylinder (17), the other end and the embedding end fixed connection of traveller (20), and the pinhole of mounting box (21) internal surface is the bar blind hole of vertically seting up.

5. The liquid crystal display module for the industrial control character liquid crystal screen according to claim 4, wherein: the fixed limiting plate (19) that is provided with in junction of third reset spring (18) and traveller (20), limiting plate (19) and fixed section of thick bamboo (17) sliding fit, the open end of fixed section of thick bamboo (17) is provided with the ring end cap, traveller (20) and ring end cap clearance fit.