A disassembly workbench for liquid crystal displays

Abstract

This utility model relates to a disassembly workbench for liquid crystal displays, including a workbench surface, a protective cover, a ventilation and filtration mechanism, and a waste collection mechanism. The workbench surface is provided with a guide channel and a drain hole; the guide channel surrounds the drain hole and slopes towards it. The protective cover covers the workbench surface, forming a relatively enclosed operating space. The protective cover has an openable transparent protective door facing the main operating direction. The ventilation and filtration mechanism includes an exhaust vent on the protective cover, and a fan and purifier connected to the exhaust vent. The waste collection mechanism includes a sorting collection box and a waste liquid tank located below the workbench. The sorting collection box is used to separately collect different types of disassembly products, and the waste liquid tank is connected to the drain hole on the workbench surface for collecting liquid. This workbench, through its guide channel, protection, purification, and sorting collection design, achieves efficient, environmentally friendly, and safe operation of liquid crystal display disassembly, and is suitable for electronic waste recycling and repair scenarios.

Description

Technical Field

[0001] This utility model belongs to the field of electronic device disassembly technology, specifically relating to a disassembly workbench for liquid crystal displays. Background Technology

[0002] With the popularization of LCD technology, LCD monitors are widely used in various electronic devices such as televisions, computers, and mobile phones. However, LCD monitors generate a large amount of electronic waste after reaching the end of their service life. Improper disposal of discarded LCD monitors not only causes environmental pollution but also leads to various problems. LCD monitors are complex in composition and contain various toxic and harmful substances.

[0003] Organic compounds in LCD panels, such as biphenyls and phenylcyclohexane-based liquid crystals, are toxic and, although not easily volatilized, can still cause pollution once they enter the environment. Liquid crystal monomers are persistent, bioaccumulative, and toxic, and have been detected in environmental media such as air, soil, and water, as well as in living organisms. Furthermore, backlight tubes contain heavy metals such as mercury, circuit boards and electronic components may contain lead, cadmium, and hexavalent chromium, and brominated flame retardants are often added to plastic casings.

[0004] Currently, the dismantling of discarded LCD monitors in China mainly involves manual dismantling using screwdrivers, pry bars, and other tools on ordinary workbenches. While this allows for the sorting of components and materials, it has significant drawbacks: firstly, the lack of effective protection means that risks such as liquid crystal leakage, mercury vapor release, and the generation of harmful gases directly threaten the safety of operators; secondly, improper waste collection leads to secondary pollution from scattered metal screws and plastic fragments, and leaked liquid is difficult to completely remove. Therefore, this utility model proposes a dismantling workbench for LCD monitors to at least partially solve the above problems. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, this utility model provides a liquid crystal display disassembly workbench, which solves the significant defects of existing displays during disassembly, such as lack of effective protection, liquid crystal leakage, mercury vapor release, generation of harmful gases, threats to operator safety, improper waste collection, easy secondary pollution, and difficulty in cleaning up liquids.

[0006] The objective of this utility model can be achieved through the following technical solution: a disassembly workbench for liquid crystal displays, comprising a workbench surface, a protective cover, a ventilation and filtration mechanism, and a waste collection mechanism; the workbench surface is provided with a guide channel and a leakage hole, the guide channel being arranged around the leakage hole and sloped towards the leakage hole; the protective cover covers the workbench surface, forming a relatively enclosed operating space, and the protective cover is provided with an openable transparent protective door facing the operating direction; the ventilation and filtration mechanism includes an exhaust port on the protective cover, and a fan and a purifier connected to the exhaust port; the waste collection mechanism includes a sorting collection box and a waste liquid tank located below the workbench, the sorting collection box being used to separately recycle different types of disassembly products, and the waste liquid tank being connected to the leakage hole on the workbench surface for collecting liquid.

[0007] As a preferred technical solution of this utility model, the guide channels are distributed in a network or radial pattern, and all converge to the leakage hole with an inclined slope.

[0008] As a preferred technical solution of this utility model, the protective cover is made of tempered glass in one piece, and the exhaust port is provided on its top or side. The exhaust port is connected to an external fan and purifier. The purifier includes a dust filter and an activated carbon adsorption component.

[0009] As a preferred technical solution of this utility model, the transparent protective door of the protective cover has an upward sliding structure, and a sealing strip is embedded around the door body, and the sealing strip is tightly fitted to the door frame of the protective cover.

[0010] As a preferred embodiment of this utility model, the waste liquid tank is equipped with a liquid level sensor for real-time monitoring of the liquid level height in the tank.

[0011] As a preferred embodiment of this utility model, the sorting and collection box is composed of several independent boxes, which are mounted on the side or front of the operating table via slide rails.

[0012] The beneficial effects of this utility model are as follows: It includes an operating table, a protective cover, a ventilation and filtration mechanism, and a waste collection mechanism. The operating table is equipped with guide channels and leakage holes. The guide channels are distributed in a network or radial pattern and tilt towards the leakage holes to guide liquid collection. The protective cover is made of tempered glass in one piece, forming a sealed space with a transparent protective door that can be pushed upwards. The top or side exhaust vents are connected to a fan and a purifier composed of a dust filter and activated carbon adsorption components through pipes to achieve gas purification. The waste collection mechanism includes a sorting collection box and a waste liquid tank. The sorting collection box is installed via a sliding rail and separates and recycles disassembled products such as metal and plastic parts. The waste liquid tank is connected to the leakage holes and is equipped with a liquid level sensor to monitor the liquid level. This operating table, through its design of guiding, protecting, purifying, and sorting collection, achieves efficient, environmentally friendly, and safe operation of LCD disassembly, and is suitable for electronic waste recycling and repair scenarios. Attached Figure Description

[0013] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 This is a block diagram of the overall structure of this utility model; Figure 2 This is a block diagram of the flow guide groove and leakage hole structure of this utility model.

[0015] In the diagram: 100, operating table; 101, flow guide; 102, leakage hole; 200, protective cover; 201, transparent protective door; 300, exhaust vent; 400, sorting collection box; 401, waste liquid tank. Detailed Implementation

[0016] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0017] With the widespread application of LCD technology in electronic devices such as televisions, computers, and mobile phones, a large number of LCD monitors generate electronic waste after reaching the end of their service life. Due to the complex composition of LCD monitors, which contain toxic liquid crystal compounds such as biphenyls and phenylcyclohexanes, heavy metals such as mercury in backlight tubes, harmful substances such as lead and cadmium in circuit boards, and brominated flame retardants in plastic casings, improper handling can easily cause environmental pollution. Currently, in China, the main method of disassembly is manual using screwdrivers, pry bars, and other tools on ordinary workbenches. Although this method can achieve component sorting, it has significant drawbacks, such as the lack of effective protection leading to liquid crystal leakage, mercury vapor release, and other hazards to operator safety, as well as the secondary pollution caused by improper waste collection and the difficulty in cleaning up leaked liquids.

[0018] For this, please refer to Figure 1-2This embodiment provides a disassembly workbench for liquid crystal displays, including a workbench surface 100, a protective cover 200, a ventilation and filtration mechanism, and a waste collection mechanism. The workbench surface 100 has flow channels 101 and drainage holes 102 on its surface. The flow channels 101 are radially distributed on the workbench surface and converge at the drainage holes 102 with an inclined slope. This ensures that when liquids such as liquid crystals flow out during disassembly, they will flow along the flow channels 101 to the drainage holes 102, rather than spreading across the workbench surface.

[0019] A protective cover 200 is installed around the perimeter of the work surface 100, extending upwards to form a semi-enclosed cover structure that encloses the operating area. The protective cover 200 is preferably made of a single piece of transparent tempered glass, allowing operators to clearly observe the internal operations while preventing injury from flying fragments during disassembly. A transparent protective door 201 is located on the operator-facing side of the protective cover 200. This door opens and closes by pushing upwards. The door uses a segmented, overlapping upward pushing-pull mechanism, and sealing strips are embedded around its perimeter. During disassembly, the protective door is pushed upwards to its maximum, the target to be disassembled is placed inside the protective cover 200, and then the door is pulled downwards. An operable space is left at the bottom of the protective door, allowing the operator to disassemble the target display within this space. The segmented, semi-open transparent protective door 201 facilitates operator visibility during disassembly while preventing liquid spillage, ensuring operator safety. Furthermore, it creates a relatively sealed space inside the cover, preventing the leakage of harmful gases.

[0020] The ventilation and filtration mechanism includes an exhaust vent 300 mounted on the protective cover 200, and a fan and purifier connected to the rear end of the exhaust vent 300. In this embodiment, the exhaust vent 300 is located at the top center of the protective cover 200 and is connected to an external fan via a duct. When the fan is running, it draws air from inside the protective cover 200 through the exhaust vent 300 and sends it to the purifier for purification. The purifier has a multi-layer filtration system, including a filter element for removing dust particles and an activated carbon filter layer for adsorbing harmful gases (such as mercury vapor). The purified air meets safety standards before being discharged into the indoor or outdoor environment, thus avoiding direct emission of harmful substances and pollution.

[0021] The waste collection mechanism includes a sorting collection bin 400 and a waste liquid tank 401. The sorting collection bin 400 is located on the front or sides below the operating table and consists of several independent bins (for example, three bins can be set up to collect metal parts, plastic parts, and glass fragments respectively). Each bin is mounted on the operating table frame via a sliding rail, allowing it to be easily pulled out or pushed in. During disassembly, operators can sort the disassembled parts and place them into the corresponding collection bins, achieving classified recycling of disassembled products. The waste liquid tank 401 is located on one side below the operating table and is connected to the drain hole 102 of the operating table surface 100 via a pipe. Liquid flowing out of the drain hole 102 will collect in the waste liquid tank 401 for storage. A liquid level sensor is installed in the waste liquid tank 401. When the waste liquid accumulates to a certain height, the sensor will send a signal to remind the operator to handle the waste liquid in time to prevent overflow.

[0022] The working principle and usage process of this utility model are as follows: Before starting to disassemble the LCD monitor, first push the transparent protective door 201 upwards and place the monitor to be disassembled on the operating table 100; then pull the protective door downwards, leaving an operating space at the bottom of the protective door, allowing the operator to operate and disassemble the target monitor within the operating space. Next, start the fan of the ventilation and filtration mechanism to create a certain negative pressure environment inside the protective cover 200. The operator performs the disassembly operation through the operating space at the bottom of the transparent protective door 201, using tools to remove the monitor's outer shell, circuit board, metal frame, and other components in sequence, and then put these components into the sorting collection box 400 below according to their material. When disassembling the LCD panel, if the panel breaks and liquid crystal leaks out, the liquid will flow along the guide channel 101 on the table to the leakage hole 102, and then into the waste liquid tank 401 for collection. When disassembling the backlight module, if fluorescent tubes are involved, since the operation is carried out in a relatively sealed enclosure, the mercury vapor released after the tube breaks will not escape outside the enclosure in large quantities, but will be drawn out by the fan and adsorbed and removed by the activated carbon purifier. Dust generated during the entire disassembly process (such as glass shards and powder) will also be carried away by the fan and intercepted by the filter. After the display is disassembled, the fan is turned off, the protective door is fully opened, the sorting collection box 400 is pulled out, and the various disassembled items inside are poured out for subsequent processing. At the same time, the waste liquid in the waste liquid tank 401 is poured out for centralized treatment.

[0023] The disassembly workbench provided by this utility model can efficiently complete the disassembly of LCD displays while ensuring the safety of operators, and effectively collect and treat the harmful substances generated during the disassembly process, thus achieving the goals of environmental protection and resource optimization.

[0024] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A liquid crystal display disassembling operation platform, characterized in that, The system includes an operating table, a protective cover, a ventilation and filtration mechanism, and a waste collection mechanism. The operating table surface is provided with a guide channel and a leakage hole; the guide channel surrounds the leakage hole and slopes towards it. The protective cover covers the operating table surface, forming a relatively enclosed operating space, and the protective cover has an openable transparent protective door facing the operating direction. The ventilation and filtration mechanism includes an exhaust vent on the protective cover, and a fan and purifier connected to the exhaust vent. The waste collection mechanism includes a sorting collection box and a waste liquid tank located below the operating table; the sorting collection box is used to separately recycle different types of dismantling products, and the waste liquid tank is connected to the leakage hole on the operating table surface for collecting liquid.

2. The liquid crystal display disassembling operation platform according to claim 1, wherein, The guide channels are distributed in a network or radial pattern, and all converge at an inclined slope to the leakage hole.

3. The liquid crystal display disassembly workbench according to claim 1, characterized in that, The protective cover is made of tempered glass in one piece, and the exhaust port is provided on its top or side. The exhaust port is connected to an external fan and purifier. The purifier includes a dust filter and an activated carbon adsorption component.

4. The liquid crystal display disassembly workbench according to claim 3, characterized in that, The transparent protective door of the protective cover has an upward sliding structure, and a sealing strip is embedded around the door body, and the sealing strip is tightly fitted to the door frame of the protective cover.

5. The liquid crystal display disassembly workbench according to claim 1, characterized in that, The waste liquid tank is equipped with a liquid level sensor for real-time monitoring of the liquid level.

6. The liquid crystal display disassembly workbench according to claim 1, characterized in that, The sorting and collection bin consists of several independent bins, which are mounted on the side or front of the operating table via slide rails.

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