Environment-friendly high-flame-retardant liquid crystal display television shell

Abstract

The invention belongs to the technical field of television shells, and particularly relates to an environment-friendly high-flame-retardant liquid crystal television shell which comprises a machine shell, a cover shell, a motor I, a worm, a worm gear and the like. A housing is installed on the machine shell. At least two motors I are mounted on the housing; an output shaft of each motor I is fixedly connected with a spline shaft; each spline shaft is connected with a spline sleeve; each spline housing is fixedly connected with a worm; at least two fixing shafts are rotationally connected to the machine shell; a worm gear is fixedly connected to each fixed shaft; and each worm gear is meshed with the corresponding worm. The two worm wheels make contact with the terminal of the power line and then rotate, the two worm wheels rotate to generate friction force with the terminal of the power line, the friction force between the worm wheels and the terminal of the power line drives the terminal of the power line to move, then the power line is separated from the power interface, and therefore the power supply is rapidly cut off. Fire is prevented from spreading along the power line, so that safety is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of TV casings, and particularly relates to an environment-friendly and highly flame-retardant LCD TV casing. Background Art

[0002] The TV casing can protect components such as the movement and picture tube in the TV. The TV casing needs to connect various wires, and these wires usually include a power cord, signal wires (such as a cable TV optical cable, an HDMI cable, an AV cable), etc. However, based on the prior art, it is found that when the wires are used for a long time, they may be damaged due to aging or wear, which may cause the metal conductors inside the wires to be exposed, increasing the risks of short circuit and fire. Also, when the power cord of the TV has a short circuit or the terminal connection of the power cord is poor, the contact resistance of the power cord will increase, causing the terminal of the power cord to overheat easily. This heat will damage the insulating layer, and then lead to faults such as short circuit and fire. And when a fire occurs in the existing TV casing, it cannot quickly cut off the power supply autonomously, which is extremely likely to cause the fire to spread along the power cord and cannot be flame-retarded in time, easily aggravating the occurrence of the disaster situation. Summary of the Invention

[0003] In order to overcome the defect that when a fire occurs in the existing TV casing, it cannot quickly cut off the power supply autonomously and is likely to cause the fire to spread, the present invention provides an environment-friendly and highly flame-retardant LCD TV casing.

[0004] The technical implementation scheme of the present invention is as follows: An environment-friendly and highly flame-retardant LCD TV casing includes a casing, and the casing is made of a fireproof and highly flame-retardant material; it also includes a cover shell, a motor I, a spline shaft, a spline sleeve, a worm, a fixed shaft, a worm gear, and a storage battery; the cover shell is installed on the casing; at least two motors I are installed on the cover shell; a spline shaft is fixedly connected to the output shaft of each motor I; a spline sleeve is connected to each spline shaft; a worm is fixedly connected to each spline sleeve; at least two fixed shafts are rotatably connected to the casing; a worm gear is fixedly connected to each fixed shaft; each worm gear meshes with a corresponding worm; the storage battery is installed on the casing.

[0005] Optionally, a photoelectric smoke sensor is installed at the heat dissipation holes of the casing.

[0006] Optionally, the connecting block is flush with the power cord port so as to cooperate with the worm gear to quickly pull out the power cord.

[0007] Optionally, it also includes a flame retardant system; the flame retardant system is connected to the casing; the flame retardant system includes a fixed plate, a motor II, a bidirectional screw rod, a movable plate, a slide rod, an extrusion block I, an elastic member I, an electric actuator and an extrusion plate; at least two electric actuators are fixedly connected to the lower inner side of the casing; the telescopic part of each electric actuator is fixedly connected to a fixed plate; a motor II is installed on each fixed plate; the output shaft of each motor II is fixedly connected to a bidirectional screw rod; each bidirectional screw rod is rotatably connected to a corresponding fixed plate; at least two movable plates are commonly screwed on all bidirectional screw rods; all movable plates are slidably connected to the fixed plate; a number of slide rods are slidably connected to each movable plate; an extrusion block I is fixedly connected to each slide rod corresponding to the signal transmission interface, and the extrusion block I matches the shape of the data line connected to the signal transmission interface; an elastic member I is sleeved on each slide rod, and one end of the elastic member I is fixedly connected to the movable plate, and the other end of the elastic member I is fixedly connected to the slide rod; an extrusion plate is commonly fixedly connected to all fixed plates.

[0008] Optionally, a plurality of rubber strips are provided on the surface of the extrusion plate.

[0009] Optionally, a groove I is provided on a side of the extrusion block I away from the movable plate.

[0010] Optionally, an extrusion block II is also included, and the extrusion block II matches the shape of the data line connected to the data port; an extrusion block II matching the shape of the data line connected to the data port is fixedly connected to each sliding rod corresponding to the data port.

[0011] Optionally, a groove II is provided on a side of the extrusion block II away from the movable plate.

[0012] Optionally, it also includes a protection system; the protection system is connected to the cover shell; the protection system includes a baffle plate, a wedge block and an elastic member II; the baffle plate is slidably connected to the cover shell; a wedge block is fixedly connected to the lower surface of the baffle plate; at least two elastic members II are fixedly connected to the wedge block, and one end of the elastic member II is fixedly connected to the wedge block, and the other end of the elastic member II is fixedly connected to the cover shell.

[0013] Optionally, the shielding plate is made of ceramic insulating material.

[0014] Beneficial effects are: The advantages and positive effects of the present invention are: By making the two worm gears contact with the terminals of the power cord and then making the two worm gears rotate, the two worm gears rotate and generate friction with the terminals of the power cord, and the friction between the worm gears and the terminals of the power cord drives the terminals of the power cord to move downward, thereby driving the power cord to move downward, and then the power cord is separated from the power interface, thereby quickly cutting off the power supply, preventing the fire from spreading along the power cord, and thus improving safety.

[0015] The data lines at corresponding positions are moved by the extrusion block I and the extrusion block II, causing the data lines to approach the extrusion plate. The extrusion plate supports the data lines, so that one side of the data lines is limited by the extrusion block I or the extrusion block II, and the other side of the data lines is limited by the extrusion plate. All the elastic members I are compressed, thereby realizing clamping and limiting of the data lines.

[0016] Two electric actuators are used to start and drive a fixing plate to move downward respectively, so that the two fixing plates move downward synchronously, and then drive all the extrusion blocks I, all the extrusion blocks II and the extrusion plate to move downward synchronously, thereby driving the data lines to move downward, and pulling out all the data lines from the corresponding signal transmission interfaces and data ports, further preventing the spread of fire.

[0017] By moving the shielding plate between the terminal of the power cord and the power supply interface, the terminal of the power cord is extruded by the wedge block, so that the terminal of the power cord is separated from the power supply interface. The terminal of the power cord and the power supply interface are separated by the shielding plate and the wedge block. Since the shielding plate is made of insulating material, the risk of fire caused by the generation of electric arcs between the power cord and the power supply interface can be reduced. Description of the Drawings

[0018] Figure 1 It is a perspective three-dimensional structure diagram of the front side of the environmentally friendly high-flame-retardant LCD TV shell of the present invention; Figure 2 It is a perspective three-dimensional structure diagram of the back side of the environmentally friendly high-flame-retardant LCD TV shell of the present invention; Figure 3 It is a perspective three-dimensional structure diagram of the power supply interface, power cord cover, motor I, spline shaft, spline sleeve, worm, fixed shaft and worm gear combination of the environmentally friendly high-flame-retardant LCD TV shell of the present invention; Figure 4 It is a schematic diagram of the installation positions of the fixing plate and the motor II of the environmentally friendly high-flame-retardant LCD TV shell of the present invention; Figure 5 It is a perspective three-dimensional structure diagram of the movable plate, slide rod, extrusion block I, elastic member I and extrusion block II combination of the environmentally friendly high-flame-retardant LCD TV shell of the present invention; Figure 6 It is a perspective three-dimensional structure diagram of the movable plate, extrusion block I, groove I, extrusion block II and groove II combination of the environmentally friendly high-flame-retardant LCD TV shell of the present invention; Figure 7 It is a schematic diagram of the installation position of the shielding plate of the environmentally friendly high-flame-retardant LCD TV shell of the present invention; Figure 8 It is a perspective three-dimensional structure diagram of the power supply interface, power cord, shielding plate, wedge block and elastic member II combination of the environmentally friendly high-flame-retardant LCD TV shell of the present invention.

[0019] Marks in the attached drawings: 11 - housing, 12 - power supply interface, 13 - power cord, 14 - junction board, 15 - optoelectronic smoke sensor, 141 - signal transmission interface, 142 - data port, 201 - housing cover, 202 - motor I, 203 - spline shaft, 2031 - spline sleeve, 2032 - worm, 204 - fixed shaft, 205 - worm gear, 207 - storage battery, 301 - fixed plate, 302 - motor II, 303 - bidirectional lead screw, 304 - movable plate, 305 - slide bar, 306 - extrusion block I, 3061 - groove I, 307 - elastic member I, 308 - extrusion block II, 3081 - groove II, 309 - electric actuator, 310 - extrusion plate, 402 - baffle plate, 403 - wedge block, 404 - elastic member II. Detailed implementation mode

[0020] The present invention will be specifically introduced below in conjunction with the attached drawings and specific embodiments.

[0021] Embodiment 1: An environment-friendly and highly flame-retardant LCD TV housing, according to Figures 1 - 4 as shown, includes a housing 11, and the housing 11 is made of fireproof and highly flame-retardant material; It also includes a housing cover 201, a motor I 202, a spline shaft 203, a spline sleeve 2031, a worm 2032, a fixed shaft 204, a worm gear 205 and a storage battery 207; a housing cover 201 is installed on the housing 11; two motors I 202 are installed inside the housing cover 201; a spline shaft 203 is fixedly connected to the output shaft of each motor I 202; a spline sleeve 2031 is connected to each spline shaft 203; a worm 2032 is fixedly connected to each spline sleeve 2031; two fixed shafts 204 are rotatably connected to the housing 11; a worm gear 205 is fixedly connected to each fixed shaft 204; each worm gear 205 meshes with a corresponding worm 2032; a storage battery 207 is installed at the lower part inside the housing 11.

[0022] An optoelectronic smoke sensor 15 is installed at the heat dissipation hole of the housing 11 for detecting the smoke concentration in real time and quickly sending a warning signal.

[0023] Taking the front side of the housing 11 as a reference, the left side of the connecting block is flush with the left side of the power cord 13 port, and the right side of the connecting block is flush with the right side of the power cord 13 port, so as to cooperate with the worm gear 205 to quickly pull out the power cord 13.

[0024] When the TV is in use, the power cord 13 is inserted into the power interface 12. During the process of inserting the power cord 13 into the power interface 12, the terminals of the power cord 13 come into contact with two worm wheels 205, and as the power cord 13 moves upward, it drives the two worm wheels 205 to rotate. Then, each of the two worm wheels 205 drives a corresponding worm 2032 to rotate. After the two worms 2032 rotate, they drive the corresponding spline sleeves 2031 to move downward along the corresponding spline shafts 203, so that the terminals of the power cord 13 are always in contact with the two worm wheels 205, as Figure 3 shown, so that the TV can be used normally. When the power cord 13 of the TV shows a short circuit or poor connection during use, the contact resistance of the power cord 13 will increase, resulting in the terminals of the power cord 13 being extremely prone to overheating. This kind of heat generation will damage the insulation layer, and then cause faults such as short circuits and fires. The photoelectric smoke sensor 15 installed in the machine case 11 detects various components on the machine case 11 in real time. If a fire occurs, the photoelectric smoke sensor 15 immediately sends a warning signal and quickly cuts off the power to prevent the fire from spreading. The two motors I 202 are powered by the storage battery 207, and then the two motors I 202 are controlled to start. The output shafts of the two motors I 202 rotate to drive a corresponding spline shaft 203 to rotate respectively. The two spline shafts 203 rotate to drive a corresponding spline sleeve 2031 to rotate respectively. The two spline sleeves 2031 rotate to drive a corresponding worm 2032 to rotate respectively. The two worms 2032 rotate to drive a corresponding worm wheel 205 to rotate respectively. The two worm wheels 205 rotate to generate a frictional force with the terminals of the power cord 13, and drive the terminals of the power cord 13 to move downward through the frictional force between the worm wheels 205 and the terminals of the power cord 13, and then drive the power cord 13 to move downward, so that the power cord 13 is separated from the power interface 12, thus realizing a quick power cut-off to prevent the fire from spreading along the power cord 13, thereby improving safety; Moreover, the worm wheel 205 can limit the terminals of the power cord 13, that is, when the worm wheel 205 rotates to drive the terminals of the power cord 13 to move downward, during the process of the power cord 13 separating from the power interface 12, the frictional force generated between the worm wheel 205 and the terminals of the power cord 13 is always vertically downward, so as to prevent displacement between the worm wheel 205 and the terminals of the power cord 13, resulting in uneven force and affecting the disconnection of the power cord 13 from the power interface 12.

[0025] Embodiment 2: On the basis of Embodiment 1, according to Figure 1 and Figures 5 - 7As shown in the figure, it also includes a flame retardant system; the flame retardant system is connected to the casing 11; the flame retardant system includes a fixed plate 301, a motor II 302, a bidirectional lead screw 303, a movable plate 304, a slide bar 305, a pressing block I 306, an elastic member I 307, an electric actuator 309 and a pressing plate 310; two electric actuators 309 are fixedly connected to the lower part inside the casing 11, and the electric actuator 309 is an electric push rod; a fixed plate 301 is fixedly connected to the telescopic part of each electric actuator 309; a motor II 302 is installed on each fixed plate 301; a bidirectional lead screw 303 is fixedly connected to the output shaft of each motor II 302; each bidirectional lead screw 303 is rotatably connected to a corresponding fixed plate 301; two movable plates 304 are jointly screwed on all the bidirectional lead screws 303; all the movable plates 304 are slidably connected to the fixed plate 301; a plurality of slide bars 305 are slidably connected to each movable plate 304; a pressing block I 306 is fixedly connected to each slide bar 305 corresponding to the signal transmission interface 141, and the pressing block I 306 matches the shape of the data cable connected to the signal transmission interface 141, and the pressing block I 306 is made of rubber; a spring I 307 is sleeved on each slide bar 305, the spring I 307 is a spring, and one end of the spring I 307 is fixedly connected to the movable plate 304, and the other end of the spring I 307 is fixedly connected to the slide bar 305; a pressing plate 310 is fixedly connected to all the fixed plates 301.

[0026] A plurality of rubber strips are arranged on the surface of the pressing plate 310 to increase the friction between the pressing plate 310 and the data cable.

[0027] A groove I 3061 is arranged on the side of the pressing block I 306 away from the movable plate 304 to make the data cable located in the groove I 3061 so as to clamp the data cable conveniently.

[0028] It also includes a pressing block II 308, and the pressing block II 308 matches the shape of the data cable connected to the data port 142, and the pressing block II 308 is made of rubber; a pressing block II 308 that matches the shape of the data cable connected to the data port 142 is fixedly connected to each slide bar 305 corresponding to the data port 142.

[0029] A groove II 3081 is arranged on the side of the pressing block II 308 away from the movable plate 304 to make the data cable located in the groove II 3081 so as to clamp the data cable conveniently.

[0030] To further prevent the spread of fire, a signal transmission interface 141 and a data port 142 are provided on the wiring board 14 on the casing 11. Therefore, various data lines need to be pulled out from the corresponding signal transmission interface 141 and data port 142. The initial positions of various data lines are all connected to the corresponding signal transmission interface 141 and data port 142, and the data lines are located between the corresponding pressing block Ⅰ 306 and the pressing plate 310. By controlling the start of two motors Ⅱ 302, the output shafts of the two motors Ⅱ 302 rotate to drive a bidirectional lead screw 303 to rotate respectively. The synchronous rotation of the two bidirectional lead screws 303 causes the two movable plates 304 to move towards each other. Furthermore, the movement of each movable plate 304 drives the corresponding slide bar 305, pressing block Ⅰ 306, elastic member Ⅰ 307 and pressing block Ⅱ 308 to move. As a result, the pressing block Ⅰ 306 and the pressing block Ⅱ 308 move to press the data lines at the corresponding positions, causing the data lines to approach the pressing plate 310, and the pressing plate 310 supports the data lines. Furthermore, one side of the data line is limited by the pressing block Ⅰ 306 or the pressing block Ⅱ 308, and the other side of the data line is limited by the pressing plate 310, and all the elastic members Ⅰ 307 are compressed. And because both the pressing block Ⅰ 306 and the pressing block Ⅱ 308 are made of rubber material and a number of rubber strips are provided on the front side and the rear side of the pressing plate 310, the side friction with the data lines can be increased, so that the data lines can be better clamped and limited. At the same time, since a groove Ⅰ 3061 is provided on the side of the pressing block Ⅰ 306 away from the movable plate 304, and a groove Ⅱ 3081 is provided on the side of the pressing block Ⅱ 308 away from the movable plate 304, the groove Ⅰ 3061 and the groove Ⅱ 3081 can clamp and limit the terminals of the data lines, thus further improving the clamping effect on the data lines. Then, control the start of two electric actuators 309 to drive a fixing plate 301 to move downward respectively. As a result, the two fixing plates 301 move downward synchronously, driving all the components connected to the two fixing plates 301 to move, driving all the pressing blocks Ⅰ 306, all the pressing blocks Ⅱ 308 and the pressing plate 310 to move downward synchronously, thereby driving the data lines to move downward, so as to pull out all the data lines from the corresponding signal transmission interface 141 and data port 142, thus further preventing the spread of fire; It should be noted that, due to the different uses of various data cables, the shapes of the ports and harnesses of various data cables will be different, so extrusion blocks I306 and extrusion blocks II308 of different shapes are set to adapt to different data cables, so as to better clamp and limit the various data cables. At the same time, due to the different plug-in of various data cables, that is, based on the front of the housing 11, the front and rear positions of various data cables are different. If all data cables are clamped at the same horizontal position, the data cables will be squeezed by the extrusion blocks I306 and II308, which will cause the harness part of the data cables and the port part of the data cables to tilt at a large angle, thereby causing the extrusion blocks I306 and II308 to move downward to pull out the data cables. The force direction of the data cables The data cables may be tilted at a large angle, which may make it difficult to quickly unplug some data cables, causing safety hazards. Therefore, an extrusion plate 310 is set between the front and rear signal transmission interfaces 141 and the front and rear data ports 142, so that one side of the data cable is limited by the extrusion block I 306 or the extrusion block II 308, and the other side of the data cable is limited by the extrusion plate 310, so as to avoid the wiring harness part of the data cable and the port part of the data cable from tilting at a large angle, thereby avoiding the problem that the force direction of the data cable is tilted at a large angle when the extrusion block I 306 and the extrusion block II 308 are moved downward to unplug the data cable, which is conducive to quickly unplugging various data cables from the corresponding signal transmission interfaces 141 and data ports 142.

[0031] Embodiment three: Based on the second embodiment, according to Figures 7 - 8 As shown, it also includes a protection system; the protection system is connected to the cover shell 201; the protection system includes a baffle plate 402, a wedge block 403 and an elastic member II 404; the baffle plate 402 is slidably connected to the cover shell 201; the wedge block 403 is fixedly connected to the lower surface of the baffle plate 402; two elastic members II 404 are fixedly connected to the wedge block 403, and the elastic member II 404 is a spring, and one end of the elastic member II 404 is fixedly connected to the wedge block 403, and the other end of the elastic member II 404 is fixedly connected to the cover shell 201.

[0032] The shielding plate 402 is made of ceramic insulating material.

[0033] After the power cord 13 is unplugged from the power interface 12, in order to avoid an arc between the power cord 13 and the power interface 12 causing a fire, the upper surface of the terminal of the power cord 13 presses the wedge block 403 when the power cord 13 is moved upward and inserted into the power interface 12 with the front of the housing 11 as a reference, so that the wedge block 403 moves backward with the front of the housing 11 as a reference. The movement of the wedge block 403 drives the shielding plate 402 to move, thereby compressing the elastic member II 404, until the power cord 13 is inserted into the power interface 12, and the shielding plate 402 will always press against the side of the terminal of the power cord 13, as shown in FIG.Figure 8 As shown, when the power cord 13 is unplugged from the power interface 12, the power cord 13 will continuously move downward, so that the terminal of the power cord 13 no longer limits the shielding plate 402. Then, due to the elastic force generated by the elastic member II 404, both the shielding plate 402 and the wedge-shaped block 403 move back to their original positions. As a result, the shielding plate 402 moves between the terminal of the power cord 13 and the power interface 12. Thus, the wedge-shaped block 403 squeezes the terminal of the power cord 13, causing the terminal of the power cord 13 to disengage from the power interface 12, and the shielding plate 402 and the wedge-shaped block 403 isolate the terminal of the power cord 13 from the power interface 12. Since the shielding plate 402 is made of insulating material, the risk of an electric arc occurring between the power cord 13 and the power interface 12 and causing a fire can be reduced.

[0034] Although the present disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art should understand that various changes in form and detail may be made therein without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above embodiments, but should be determined not only by the appended claims but also by the equivalents of the appended claims.

Claims

1. An environmentally friendly and highly flame-retardant LCD TV housing, characterized by: The invention comprises a housing (11), wherein the housing (11) is made of a fireproof and highly flame-retardant material; further comprising a cover (201), a motor I (202), a spline shaft (203), a spline sleeve (2031), a worm (2032), a fixed shaft (204), a worm wheel (205) and a battery (207); the housing (11) is mounted with the cover (201); at least two motors I (202) are mounted on the cover (201); each motor I (202) is fixedly connected to its output shaft A spline shaft (203); each spline shaft (203) is connected to a spline sleeve (2031); each spline sleeve (2031) is fixedly connected to a worm (2032); at least two fixed shafts (204) are rotatably connected to the housing (11); each fixed shaft (204) is fixedly connected to a worm wheel (205); each worm wheel (205) is meshed with a corresponding worm wheel (2032); and a storage battery (207) is installed on the housing (11).

2. The environmentally friendly and highly flame-retardant LCD TV housing according to claim 1, characterized in that: A photoelectric smoke sensor (15) is installed at the heat dissipation hole of the casing (11).

3. The environmentally friendly and highly flame-retardant LCD TV housing according to claim 2, characterized in that: The connection block is flush with the power cable (13) terminal.

4. The environmentally friendly and highly flame-retardant LCD TV housing according to claim 3 is characterized by: The invention also includes a flame retardant system; the flame retardant system is connected to the casing (11); the flame retardant system includes a fixed plate (301), a motor II (302), a bidirectional screw (303), a movable plate (304), a sliding rod (305), an extrusion block I (306), an elastic member I (307), an electric actuator (309) and an extrusion plate (310); at least two electric actuators (309) are fixedly connected to the lower inner side of the casing (11); the telescopic portion of each electric actuator (309) is fixedly connected to a fixed plate (301); a motor II (302) is mounted on each fixed plate (301); the output shaft of each motor II (302) is fixedly connected to a bidirectional screw (303); each bidirectional screw (303) is rotationally connected to a corresponding fixed plate (301) The invention relates to a method for manufacturing a plurality of movable plates (304) for connecting a plurality of movable plates (304) to a signal transmission interface (141); all the two-way screw rods (303) are commonly screwed with at least two movable plates (304); all the movable plates (304) are slidably connected with the fixed plate (301); each movable plate (304) is slidably connected with a plurality of sliding rods (305); each sliding rod (305) corresponding to the signal transmission interface (141) is fixedly connected with an extrusion block I (306), and the extrusion block I (306) matches the shape of the data line connected to the signal transmission interface (141); each sliding rod (305) is sleeved with an elastic member I (307), and one end of the elastic member I (307) is fixedly connected to the movable plate (304), and the other end of the elastic member I (307) is fixedly connected to the sliding rod (305); and all the fixed plates (301) are commonly fixedly connected with an extrusion plate (310).

5. The environmentally friendly and highly flame-retardant LCD TV housing according to claim 4, characterized in that: A plurality of rubber strips are arranged on the surface of the extrusion plate (310).

6. The environmentally friendly and highly flame-retardant LCD TV housing according to claim 5, characterized in that: A groove I (3061) is provided on a side of the extrusion block I (306) away from the movable plate (304).

7. The environmentally friendly and highly flame-retardant liquid crystal television housing according to claim 6, characterized in that: It also includes an extrusion block II (308), and the extrusion block II (308) matches the shape of the data line connected to the data port (142); each sliding rod (305) corresponding to the data port (142) is fixedly connected with an extrusion block II (308) matching the shape of the data line connected to the data port (142).

8. The environmentally friendly and highly flame-retardant liquid crystal television housing according to claim 7, characterized in that: A groove II (3081) is provided on a side of the extrusion block II (308) away from the movable plate (304).

9. An environmentally friendly and highly flame-retardant liquid crystal television housing according to any one of claims 1 to 8, characterized in that: The invention also comprises a protection system; the protection system is connected to the cover shell (201); the protection system comprises a shielding plate (402), a wedge block (403) and an elastic member II (404); the shielding plate (402) is slidably connected to the cover shell (201); the wedge block (403) is fixedly connected to the lower surface of the shielding plate (402); at least two elastic members II (404) are fixedly connected to the wedge block (403), and one end of the elastic member II (404) is fixedly connected to the wedge block (403), and the other end of the elastic member II (404) is fixedly connected to the cover shell (201).

10. The environmentally friendly and highly flame-retardant liquid crystal television housing according to claim 9, characterized in that: The shielding plate (402) is made of ceramic insulating material.

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