CN211180455U - Liquid crystal display module's leakproofness detection device - Google Patents

Abstract

The utility model discloses a leakproofness detection device of liquid crystal display module, including detection case and vacuum pump, the case lid is installed at the detection case top, the magnifying glass is installed to the detection case front end face, be equipped with the pedestal in the detection case, the chamber has been seted up in the pedestal, be equipped with first bevel gear in the chamber, be connected with first pivot on the first bevel gear, first bevel gear meshing is connected with second bevel gear, be connected with the second pivot on the second bevel gear, the second pivot is connected with places the board, be equipped with the centre gripping subassembly on placing the board, install transparent film bag on the centre gripping subassembly, transparent film bag top is equipped with the sealing strip, be connected with the second tuber pipe on the transparent film bag, the detection case is connected with the; the utility model discloses a vacuum pump carries out the evacuation to transparent film bag and detection case in, whether the accessible is observed and whether has the bubble to judge the leakproofness of liquid crystal display module on the transparent film bag, can drive through the handle and place the board rotation, is convenient for carry out comprehensive observation to the liquid crystal display module.

Description

Liquid crystal display module's leakproofness detection device

Technical Field

The utility model relates to a sealed technical field that detects specifically is a liquid crystal display module's leakproofness detection device.

Background

The liquid crystal module is simply a screen and a backlight assembly. The display component of the liquid crystal television is a liquid crystal module, which is equivalent to a picture tube in a CRT. Other parts include power supply circuitry, signal processing circuitry, etc., and of course, anything else. The module is mainly divided into a screen and a backlight lamp assembly. The two parts are assembled together but are independent of each other when in operation. The principle of liquid crystal display is that a backlight assembly emits uniform surface light, which is transmitted to our eyes through a liquid crystal screen. The role of the screen is to process the light on a pixel-by-pixel basis to display an image.

After liquid crystal module production and processing accomplished, need detect its leakproofness, through the detection to the leakproofness of product to can judge the quality of product, it is significant to the whole quality of controlling the product, and current sealed check out test set often the cost is expensive, is not suitable for small-size enterprise to use.

Based on this, the utility model designs a leakproofness detection device of liquid crystal display module assembly to solve the above-mentioned problem of mentioning.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a leakproofness detection device of liquid crystal display module assembly to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the device for detecting the sealing performance of the liquid crystal display module comprises a detection box and a vacuum pump, wherein a box cover is installed at the top of the detection box, the box cover and the detection box are sealed, the left side of the detection box is connected with a first air pipe, a first control valve is arranged on the first air pipe, a magnifying glass is installed on the front end face of the detection box, a support rod is fixedly connected with the inner bottom wall of the detection box, the top end of the support rod is fixedly connected with a pedestal, a cavity is formed in the pedestal, a first bevel gear is arranged in the cavity and connected with a first rotating shaft, the first rotating shaft penetrates through the detection box, a second bevel gear is connected with the first bevel gear in a meshing manner, a second rotating shaft is connected onto the second bevel gear, the second rotating shaft penetrates through a placing plate fixedly connected with the pedestal, a clamping assembly is arranged on the, the top of the transparent film bag is provided with a sealing strip, the transparent film bag is connected with a second air pipe, the lower part of the detection box is connected with a third air pipe, the third air pipe and the second air pipe are connected through a first connecting pipe, and the first connecting pipe is connected with a vacuum pump through a second connecting pipe.

Preferably, the centre gripping subassembly includes two sets of fixed plates, and is two sets of the fixed plate respectively with place board top both sides fixed connection, two sets of the inboard equal fixedly connected with spring of fixed plate, spring other end butt has splint, splint with place sliding connection between the board, bond between splint and the transparent film bag.

Preferably, the second air pipe and the third air pipe are respectively provided with a second regulating valve and a third regulating valve.

Preferably, the magnifying lens is positioned right in front of the transparent film bag.

Preferably, a rubber sealing strip is arranged inside the box cover.

Preferably, the outer end of the first rotating shaft is connected with a handle.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model is not only novel in structure, carry out the evacuation in transparent film bag and the detection case through the vacuum pump, whether the accessible is observed the leakproofness that whether has the bubble to judge liquid crystal display module on the transparent film bag, can drive through the handle and place the board and rotate, be convenient for carry out comprehensive observation to liquid crystal display module, be provided with the magnifying glass, can observe small bubble, make the testing result more accurate, the cost is lower, it is very convenient to use.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

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

fig. 2 is the schematic diagram of the internal structure of the detection box of the present invention.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution of a device for detecting the sealing performance of a liquid crystal display module: comprises a detection box 1 and a vacuum pump 11, a box cover 6 is arranged at the top of the detection box 1, the box cover 6 and the detection box 1 are sealed, so that the detection box 1 can be vacuumized conveniently, a first air pipe 4 is connected to the left side of the detection box 1, a first control valve 5 is arranged on the first air pipe 4, a magnifier 3 is arranged on the front end face of the detection box 1, so that a transparent film bag 25 can be observed conveniently, a support rod 14 is fixedly connected to the inner bottom wall of the detection box 1, a pedestal 15 is fixedly connected to the top end of the support rod 14, a chamber 16 is arranged in the pedestal 15, a first bevel gear 17 is arranged in the chamber 16, a first bevel gear 17 is connected to the first bevel gear 17, the first shaft 20 passes through the detection box 1, the first shaft 20 is rotatably connected to the detection box 1, the joint of the first shaft 20 and the detection box 1 is sealed, a first bevel gear, second pivot 19 passes pedestal 15 fixedly connected with and places board 21, it is equipped with the centre gripping subassembly on the board 21 to place, the liquid crystal display module assembly of centre gripping subassembly in to transparent film bag 25 is fixed, install transparent film bag 25 on the centre gripping subassembly, transparent film bag 25 top is equipped with seals strip 26, be convenient for seal transparent film bag 25, be connected with second tuber pipe 7 on the transparent film bag 25, 1 sub-unit connection in detection case has third tuber pipe 13, be connected through first connecting pipe 9 between third tuber pipe 13 and the second tuber pipe 7, first connecting pipe 9 is connected with vacuum pump 11 through second connecting pipe 10, accessible vacuum pump 11 carries out the evacuation in to detection case 1 and the transparent film bag 25.

The clamping assembly comprises two groups of fixing plates 22, the two groups of fixing plates 22 are respectively fixedly connected with two sides of the top of the placing plate 21, springs 23 are fixedly connected to the inner sides of the two groups of fixing plates 22, the other ends of the springs 23 are abutted to clamping plates 24, the clamping plates 24 are in sliding connection with the placing plate 21, the clamping plates 24 can be guaranteed to clamp the liquid crystal display module in the transparent film bag 25 under the elastic force action of the springs 23, and the clamping plates 24 are bonded with the transparent film bag 25; the second air duct 7 and the third air duct 13 are respectively provided with a second regulating valve 8 and a third regulating valve 12, so that the sizes of the openings of the second air duct 7 and the third air duct 13 can be conveniently regulated; the magnifier 3 is positioned right in front of the transparent film bag 25, so that the liquid crystal display module in the transparent film bag 25 can be observed conveniently; a rubber sealing strip (the sealing strip is not shown in the figure) is arranged inside the box cover 6, so that the sealing property between the box cover 6 and the detection box 1 can be ensured; the outer end of the first rotating shaft 20 is connected with a handle 2, which is convenient for rotating the first rotating shaft 20.

The specific working principle is as follows:

when the detection device is used, a liquid crystal display module to be detected is placed into the transparent film bag 25, the liquid crystal display module is clamped by the clamping plate 24, the sealing strip 26 is pulled up, the transparent film bag 25 is sealed, the box cover 6 is covered, the second regulating valve 8 is opened, the transparent film bag 25 is vacuumized by the vacuum pump 11, the transparent film bag 25 is tightly attached to the liquid crystal display module, the second regulating valve 8 is closed, the third regulating valve 12 is opened, the vacuum pump 11 is used for vacuuming the detection box 1, the first rotating shaft 20 is driven by the hand rotating handle 2 to rotate, along with the rotation of the hand rotating handle 2, the first rotating shaft 20 drives the second bevel gear 18 to rotate through the first bevel gear 17, the second bevel gear 18 drives the placing plate 21 to rotate through the second rotating shaft 19, the transparent film bag 25 and the liquid crystal display module rotate along with the placing plate 21, and a worker can observe the transparent film bag 25 through the magnifier, when appearing the bubble on the transparent plastic bag, then the leakproofness of this department of liquid crystal display module is not good, if there is not the bubble, then the liquid crystal display module leakproofness is good, through rotating handle 25, can realize carrying out comprehensive observation to the liquid crystal display module, detect the completion back, can open first control valve 5, in external gas gets into detection case 1 via first tuber pipe 4, can open case lid 6, takes out the liquid crystal display module after detecting.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (6)

1. The utility model provides a leakproofness detection device of liquid crystal display module, includes detection case (1) and vacuum pump (11), its characterized in that: the detection box comprises a detection box body (1), a box cover (6) is installed at the top of the detection box body (1), the box cover (6) and the detection box body (1) are sealed, a first air pipe (4) is connected to the left side of the detection box body (1), a first control valve (5) is arranged on the first air pipe (4), a magnifying glass (3) is installed on the front end face of the detection box body (1), a supporting rod (14) is fixedly connected to the inner bottom wall of the detection box body (1), a pedestal (15) is fixedly connected to the top end of the supporting rod (14), a cavity (16) is formed in the pedestal (15), a first bevel gear (17) is arranged in the cavity (16), a first rotating shaft (20) is connected onto the first bevel gear (17), the first rotating shaft (20) penetrates through the detection box body (1), a second bevel gear (18) is connected onto the first bevel gear (17, second pivot (19) pass pedestal (15) fixedly connected with and place board (21), it is equipped with the centre gripping subassembly on board (21) to place, install transparent film bag (25) on the centre gripping subassembly, transparent film bag (25) top is equipped with seals strip (26), be connected with second tuber pipe (7) on transparent film bag (25), detection case (1) sub-unit connection has third tuber pipe (13), be connected through first connecting pipe (9) between third tuber pipe (13) and second tuber pipe (7), first connecting pipe (9) are connected with vacuum pump (11) through second connecting pipe (10).

2. The device for detecting the sealing performance of the liquid crystal display module according to claim 1, wherein: the centre gripping subassembly includes two sets of fixed plate (22), and is two sets of fixed plate (22) respectively with place board (21) top both sides fixed connection, two sets of the equal fixedly connected with spring (23) of fixed plate (22) inboard, spring (23) other end butt has splint (24), splint (24) and place sliding connection between board (21), bond between splint (24) and transparent film bag (25).

3. The device for detecting the sealing performance of the liquid crystal display module according to claim 1, wherein: and the second air pipe (7) and the third air pipe (13) are respectively provided with a second regulating valve (8) and a third regulating valve (12).

4. The device for detecting the sealing performance of the liquid crystal display module according to claim 1, wherein: the magnifier (3) is positioned right in front of the transparent film bag (25).

5. The device for detecting the sealing performance of the liquid crystal display module according to claim 1, wherein: and a rubber sealing strip is arranged inside the box cover (6).

6. The device for detecting the sealing performance of the liquid crystal display module according to claim 1, wherein: the outer end of the first rotating shaft (20) is connected with a handle (2).

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