A backlight source with anti-static function

Abstract

The invention discloses an anti-static backlight source, which relates to the technical field of anti-static devices. The positioning seat in the invention allows multiple positioning seats to approach the backlight source at the same time through the interaction of a sliding inclined surface and an inclined surface. The wire pulling and winding system can achieve a more uniform fixing force, so that the installation of the backlight source is faster and more accurate. The contact surface between the positioning seat and the backlight source is composed of vertical surfaces, which ensures a large area of ​​contact, so that static electricity can be more effectively discharged and the adverse effects of static electricity on the equipment can be avoided. The positioning seat is flush with the surface of the grounding platform, avoiding the protruding parts commonly seen in traditional bolt fixing devices, which facilitates the contact between the backlight source and the fixing part. The matching design of the winding roller, the teeth and the limit seat ensures the stability of the wire after winding, and provides an anti-static solution for electronic equipment and display screens that require anti-static protection, which can achieve a more efficient fixing process and a more reliable anti-static protection effect.

Description

Technical Field

[0001] The invention relates to the technical field of antistatic devices, in particular to an antistatic backlight source. Background Art

[0002] The backlight is a light source located behind the liquid crystal display (LCD). Its luminous effect will directly affect the visual effect of the liquid crystal display module (LCM). The LCD itself does not emit light. It displays graphics or characters as a result of its modulation of light. The backlight is mainly composed of a light source, a light guide plate, an optical film, etc. The backlight has the characteristics of high brightness, long life, and uniform luminescence. During the use of the backlight, the light source and the circuit board will generate an electrostatic field. However, the backlight cannot carry static electricity, as static electricity will cause electrostatic burning to the film, etc., affecting the light transmittance. Under the prior art, a Chinese patent with publication number "CN219302835U" discloses an anti-static device, and in particular, relates to an anti-static backlight source. The utility model provides a compact anti-static backlight source, including a frame, a backlight source assembly, a cable, a hollow tube, screws, and tinfoil balls, etc. The backlight source assembly is installed in the frame, and a cable is welded to one end of the backlight source assembly. Hollow tubes are embedded on both sides of the frame, and the hollow tubes are in contact with the backlight source assembly. Tinfoil balls are arranged in the hollow tubes, and screws are connected to both ends of the hollow tubes. The backlight source assembly in the frame contacts the hollow tube, and the static electricity on the backlight source assembly is absorbed, so that there is no static electricity on the backlight source assembly. Since the hollow tube is small in size and embedded in the frame, it occupies a small area, so that it can remove static electricity and is compact and does not occupy an area. The above patent can prevent and guide away the static electricity of the backlight source assembly to a certain extent, but in actual use, the static electricity is guided away through the hollow tubes on both sides and the backlight source. The hollow tubes and the backlight source are fixed by bolts, and there is no specific description of how the hollow tubes are grounded. During installation and disassembly, the hollow tubes need to be fixed to the grounding point in advance, and the contact between the hollow tubes and the backlight source also needs to be connected and fixed in advance. The steps are relatively cumbersome, which not only increases the complexity of the operation, but may also cause inconvenience in actual installation and maintenance. The contact area between the hollow tubes and the backlight source in the device is only on both sides, which is not enough to fully guide away the static electricity on the entire backlight source assembly. If the static electricity is concentrated on the upper and lower sides, this design cannot fully solve the problem. It is necessary to improve the existing technology. To this end, we propose an anti-static backlight source for solving the above problems. Summary of the invention

[0003] The object of the present invention is to provide a backlight source with anti-static function to solve the problems mentioned in the above background technology.

[0004] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme: The present invention provides an anti-static backlight source, comprising a grounding platform, a backlight source is arranged on the surface of the grounding platform, a grounding component is arranged on a side of the grounding platform close to the backlight source, a control component is arranged on an end of the grounding component away from the backlight source, the grounding component comprises four embedding grooves, the embedding grooves are arranged around a side of the grounding platform close to the backlight source, a positioning seat is arranged inside the embedding groove, a sliding inclined surface is arranged on a side of the embedding groove close to the axis of the grounding platform, an embedding window is arranged at the bottom of the inner cavity of the embedding groove, a guide seat is fixedly connected to a side of the positioning seat close to the embedding window, a limiting plate is fixedly connected to an end of the guide seat away from the positioning seat, a guide window matching the guide seat is arranged on a side of the embedding groove close to the axis of the grounding platform, a limiting groove matching the limiting plate is arranged at the bottom of the inner cavity of the guide window, a pull wire is fixedly connected to a side of the positioning seat close to the guide window, and the The control component comprises a winding roller, the ground platform is sleeved on the surface of the winding roller, the end of the winding roller away from the rotating bearing is fixedly connected to the rotating roller, the rotating roller away from the winding roller is fixedly connected to the twisting plate, the surface of the rotating roller is sleeved on the fixed roller, and a rotating window penetrating through the middle of the fixed roller is opened, and a rotating window penetrating itself is opened

[0005] Preferably, the four embedded grooves are evenly distributed around the axis of the ground platform, the positioning seat is slidably connected to the wall of the embedded groove, the upper half of the positioning seat close to the sliding slope is provided with an inclined surface matching the sliding slope, the inclined surface is in contact with the sliding slope and slidably connected thereto, and the lower half of the positioning seat close to the sliding slope is provided with a vertical surface for contacting the side wall of the backlight source.

[0006] Preferably, the guide seat and the limit plate are placed in the embedded window, the guide seat is slidably connected to the inner wall of the guide window, the limit plate is slidably connected to the wall of the limit groove, and the guide window passes through the grounding platform and extends to the axis of the grounding platform.

[0007] Preferably, one end of the pull wire away from the positioning seat passes through the guide window and extends to the control component, and a plurality of the positioning seats are connected to the control component via the pull wire.

[0008] Preferably, a plurality of return springs are fixedly connected to a side of the positioning seat away from the axis of the grounding platform, and the plurality of return springs are evenly distributed along the length direction of the positioning seat.

[0009] Preferably, a plurality of fixing grooves are opened on the side of the embedding groove away from the axis of the grounding platform, and the plurality of fixing grooves are evenly distributed along the length direction of the embedding groove. One end of the reset spring away from the positioning seat is sleeved in the fixing groove, and the reset spring is fixedly connected to the bottom of the inner cavity of the fixing groove.

[0010] Preferably, the winding roller passes through the grounding platform, a rotating bearing is sleeved on the surface of the winding roller, the inner ring wall of the rotating bearing is fixedly connected to the winding roller, the outer ring wall of the rotating bearing is fixedly connected to the grounding platform, and the winding roller is rotatably connected to the grounding platform via the rotating bearing.

[0011] Preferably, the winding roller coincides with the axis of the grounding platform, two partitions are sleeved on the surface of the winding roller, the partitions are fixedly connected to the winding roller, there is a gap between the two partitions, the ends of the four pull wires away from the positioning seat are wound around the surface of the winding roller, the pull wires are fixedly connected to the winding roller, and multiple pull wires are placed between the two partitions.

[0012] Preferably, one end of the rotating roller away from the winding roller extends through the rotating window to the outside of the grounding platform, the rotating roller is rotatably connected to the inner wall of the rotating window, and the fixed roller is sleeved on the surface of the rotating roller through the rotating window.

[0013] Preferably, the axes of the fixed roller, the rotating roller and the grounding platform coincide with each other, the plurality of inclined grooves are evenly distributed around the axis of the fixed roller, the limit seat is slidably connected to the wall of the inclined groove, and the teeth are slidably connected to the triggering inclined surface of the limit seat.

[0014] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects: The positioning seat in the present invention realizes precise motion control through the interaction between the sliding inclined surface and the inclined surface, first protruding and then contacting and fixing. The combination of the pull wire and the control component allows multiple positioning seats to approach the backlight source at the same time, thereby simplifying the fixing process. Compared with the traditional bolt fixing method, this mechanism not only reduces the complexity of installation and maintenance, but also improves the convenience of operation. Bolt fixing usually requires each bolt to be operated separately, and errors or unevenness may occur during the fixing process. The pull wire winding system of this design can achieve a more uniform fixing force.

[0015] Secondly, the full contact design of the metal positioning seat significantly improves the anti-static effect. The contact surface between the positioning seat and the backlight source is composed of vertical surfaces, ensuring a large area of ​​contact, which can more effectively conduct static electricity and avoid the adverse effects of static electricity on the equipment. The traditional bolt-on fixing method on both sides may not be able to fully conduct static electricity due to the limited contact area, thus affecting the stability and performance of the equipment. The positioning seat of this design not only provides comprehensive static electricity conduction.

[0016] The positioning seat is flush with the surface of the grounding platform, avoiding the protruding parts commonly seen in traditional bolt fixing devices, making it easier for the backlight source to contact the fixing parts. The matching design of the winding roller, teeth and limit seat ensures the stability of the cable after winding. This mechanism adjusts the rotation of the rotating roller and the winding roller by turning the twist plate, accurately controls the tension of the cable, and reduces the risk of the cable coming loose. The design provides a more advanced solution than traditional anti-static devices for electronic devices and displays that require anti-static protection through efficient mechanical structure, precise control mechanism, flush design and excellent anti-static effect. Through this design, a more efficient fixing process and more reliable anti-static protection effect can be achieved, improving the overall stability of the device and user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the assembly structure of the backlight source and the grounding platform of the present invention; Figure 3 It is a schematic diagram of the assembly structure of the positioning seat and the grounding platform of the present invention; Figure 4 It is a schematic diagram of the assembly structure of the guide seat and the guide window of the present invention; Figure 5 It is a schematic diagram of the assembly structure of the positioning seat and the embedding groove of the present invention; Figure 6 It is a schematic diagram of the assembly structure of the winding roller and the positioning seat of the present invention; Figure 7 The present invention Figure 6 The enlarged structural diagram at A in the middle; Figure 8 It is a schematic diagram of the winding roller and the wire assembly structure of the present invention; Fig. 9 It is a schematic diagram of the assembly structure of the winding roller and the twisting plate of the present invention; Fig.10The present invention Fig. 9 The enlarged structural diagram at B in the middle; Fig.11 It is a schematic diagram of the assembly structure of the fixed roller and the winding roller of the present invention.

[0019] In the figure: 1. Grounding platform; 2. Backlight source; 3. Grounding assembly; 301. Embedding groove; 302. Positioning seat; 303. Sliding slope; 304. Inclined surface; 305. Vertical surface; 306. Embedding window; 307. Guide seat; 308. Limiting plate; 309. Guide window; 310. Limiting groove; 311. Pull wire; 312. Fixed groove; 313. Reset spring; 4. Control assembly; 401. Winding roller; 402. Rotating bearing; 403. Partition plate; 404. Rotating roller; 405. Twisting plate; 406. Fixed roller; 407. Rotating window; 408. Teeth; 409. Inclined groove; 410. Fixed cylinder; 411. Telescopic spring; 412. Limiting seat; 413. Triggering slope. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0021] See also Figure 1-Figure 11 The present invention provides an anti-static backlight source, including a grounding platform 1, a backlight source 2 is arranged on the surface of the grounding platform 1, a grounding component 3 is arranged on the side of the grounding platform 1 close to the backlight source 2, and a control component 4 is arranged on the end of the grounding component 3 away from the backlight source 2. Multiple components cooperate to improve the convenience of use of the device and provide a more reliable anti-static protection effect.

[0022] In order to allow multiple positioning seats 302 to be conveniently close to the backlight source 2 for fixed contact, the positioning seats 302 surrounded by metal can fully contact the backlight source 2 and conduct the static electricity of the backlight source 2. Four embedding grooves 301 are provided in the grounding component 3. The embedding grooves 301 are opened around the side of the grounding platform 1 close to the backlight source 2. The four embedding grooves 301 are evenly distributed around the axis of the grounding platform 1. The embedding grooves 301 have positioning seats 302 built in. A sliding slope 303 is opened on one side of the embedding groove 301 close to the axis of the grounding platform 1. The positioning seat 302 is slidably connected to the groove wall of the embedding groove 301. A matching inclined surface 304 is opened on the upper half of the side of the positioning seat 302 close to the sliding slope 303. The inclined surface 304 and the sliding slope 303 are The positioning seat 302 is in contact with and slidably connected with the grounding platform 1. A vertical surface 305 for contacting the side wall of the backlight source 2 is provided on the lower half of one side of the positioning seat 302 close to the sliding inclined surface 303. An embedding window 306 is provided at the bottom of the inner cavity of the embedding groove 301. A guide seat 307 is fixedly connected to the side of the positioning seat 302 close to the embedding window 306. The end of the guide seat 307 away from the positioning seat 302 is fixedly connected to a limiting plate 308. The guide seat 307 and the limiting plate 308 are placed in the embedding window 306. A guide window 309 matching the guide seat 307 is provided on the side of the embedding groove 301 close to the axis of the grounding platform 1. A limiting groove 310 matching the limiting plate 308 is provided at the bottom of the inner cavity of the guide window 309. The inner wall of the guide window 309 of the guide seat 307 slides The positioning seat 302 is connected to the control component 4 through the pull wire 311. ... The end of the return spring 313 away from the positioning seat 302 is sleeved in the fixing groove 312, and the return spring 313 is fixedly connected to the bottom of the inner cavity of the fixing groove 312. In the initial stage, the multiple positioning seats 302 are fixed in the embedding groove 301 of the grounding platform 1 under the fixation of the return spring 313. The multiple positioning seats 302 are kept flush with the surface of the grounding platform 1, which is convenient for the user to bring the backlight source 2 close to the grounding platform 1 for subsequent contact and fixation, and it is more aesthetically pleasing. When fixation is required, the multiple pull wires 311 are reeled up through the control component 4, and the multiple positioning seats 302 are forced to be close to the backlight source 2 and fixed. Due to the inclined surface 304 structure of the positioning seat 302, the positioning seat 302 can be extended from the embedding groove 301 and move along the guide window 309.The multiple metal positioning seats 302 around can be in close contact with the backlight source 2 at the same time. Compared with the existing two-side bolt fixing method, it is more convenient, and the metal positioning seats 302 around can fully contact with the backlight source 2 and guide the static electricity of the backlight source 2, and the anti-static effect is better.

[0023] At the same time, in order to stably control the grounding component 3, a winding roller 401 is arranged in the control component 4, the grounding platform 1 is sleeved on the surface of the winding roller 401, the winding roller 401 passes through the grounding platform 1, and a rotating bearing 402 is sleeved on the surface of the winding roller 401. The inner ring wall of the rotating bearing 402 is fixedly connected to the winding roller 401, and the outer ring wall of the rotating bearing 402 is fixedly connected to the grounding platform 1. The winding roller 401 is rotatably connected to the grounding platform 1 through the rotating bearing 402. The axis of the winding roller 401 coincides with the axis of the grounding platform 1. Two partitions 403 are sleeved on the surface of the winding roller 401. The partitions 403 are fixedly connected to the winding roller 401, and there is a gap between the two partitions 403. The ends of the four pull wires 311 away from the positioning seat 302 are wound around the surface of the winding roller 401. The pull wires 311 The winding roller 401 is fixedly connected to the winding roller 401, and a plurality of pull wires 311 are placed between two partitions 403. The end of the winding roller 401 away from the rotating bearing 402 is fixedly connected to the rotating roller 404, and the end of the rotating roller 404 away from the winding roller 401 is fixedly connected to the twisting plate 405. The surface of the rotating roller 404 is sleeved with a fixed roller 406, and a rotating window 407 penetrating through the fixed roller 406 is opened in the middle of the fixed roller 406. The end of the rotating roller 404 away from the winding roller 401 extends to the outside of the grounding platform 1 through the rotating window 407, and the rotating roller 404 is rotatably connected to the inner wall of the rotating window 407. The fixed roller 406 is sleeved on the surface of the rotating roller 404 through the rotating window 407. The outer ring wall of the fixed roller 406 is fixedly connected to the grounding platform 1 through an elastic member. The fixed roller 406 and the rotating roller 404 and the axis of the grounding platform 1 coincide with each other, a plurality of inclined grooves 409 are provided on the surface of one end of the fixed roller 406 close to the winding roller 401, and the plurality of inclined grooves 409 are evenly distributed around the axis of the fixed roller 406, a fixed cylinder 410 is fixedly connected to the bottom of the inner cavity of the inclined groove 409, a telescopic spring 411 is built in the fixed cylinder 410, one end of the telescopic spring 411 contacts the bottom of the inner cavity of the fixed cylinder 410, and the other end of the telescopic spring 411 is fixedly connected to a limiting seat 412, the limiting seat 412 and the telescopic spring 411 are both placed in the inclined groove 409, the limiting seat 412 is slidably connected to the groove wall of the inclined groove 409, a triggering inclined surface 413 is provided on the end of the limiting seat 412 close to the winding roller 401, and a plurality of teeth 408 are fixedly connected to the end of the winding roller 401 close to the fixed roller 406 The teeth 408 are slidably connected to the trigger slope 413 of the limit seat 412, and the winding roller 401 is fixed in contact with the limit seat 412 through multiple teeth 408. By rotating the twist plate 405, the rotating roller 404 and the winding roller 401 can be rotated to control the pull wire 311. The arrangement of multiple teeth 408 and the limit seat 412 allows the winding roller 401 to maintain stability after completing the winding of the pull wire 311. When the backlight source 2 needs to be maintained and disassembled, the winding roller 401 can also be pressed to make its teeth 408 detach from the limit seat 412, and its pull wire 311 can be loosened, so that the positioning seat 302 can be driven away from the backlight source 2 by the reset spring 313, and its maintenance process and installation process are simpler and more stable.

[0024] How it works During actual use, the contact between the backlight source 2 and the grounding platform 1 is controlled by a plurality of positioning seats 302, which are fixed in the grounding platform 1 by being embedded in the groove 301. The positioning seats 302 can slide in the embedded groove 301 through the interaction between the sliding slope 303 and the inclined surface 304, so that they can protrude from the embedded groove 301 and approach the backlight source 2. The contact surface between the positioning seats 302 and the backlight source 2 is composed of a vertical surface 305. This design ensures good contact between the backlight source 2 and the positioning seats 302.

[0025] The guide seat 307 and the limit plate 308 guide the movement of the positioning seat 302 in the embedded window 306, and control the movement range of the positioning seat 302 through the guide window 309 and the limit groove 310. The pull wire 311 is connected to the control component 4. The control component 4 drives multiple positioning seats 302 to approach the backlight source 2 by winding the pull wire 311 to ensure that they can be accurately fixed on the backlight source 2. The reset spring 313 helps the positioning seat 302 to remain in the embedded groove 301 when it is not fixed, and ensures that it can evenly approach the backlight source 2 when needed. The design of the reset spring 313 enables the positioning seat 302 to be flush with the surface of the grounding platform 1 in the initial stage, which is convenient for subsequent contact operations.

[0026] The winding roller 401 is connected to the grounding platform 1 through a rotating bearing 402. It is responsible for winding and fixing the cable 311. There are two partitions 403 on the winding roller 401, which are used to limit the arrangement of the cable 311 and fix the direction of the cable 311. The rotating roller 404 is connected to the winding roller 401, which is used to rotate and drive the fixed roller 406. It is connected to the rotating roller 404 through a rotating window 407. The outer ring wall of the fixed roller 406 is fixed to the grounding platform 1 through an elastic member.

[0027] The wire 311 is wound around the surface of the winding roller 401, and the wire 311 is wound by the rotation of the winding roller 401. The teeth 408 on the winding roller 401 are in contact with the trigger slope 413 of the limit seat 412 to maintain the stability of the winding state. By rotating the twist plate 405, the rotation of the rotating roller 404 and the winding roller 401 can be adjusted to control the tension of the wire 311. The cooperation between the teeth 408 and the limit seat 412 ensures the stability of the wire 311 after winding, and prevents the wire 311 from loosening. Pressing the winding roller 401 can make the teeth 408 detach from the limit seat 412, thereby loosening the wire 311, so that the positioning seat 302 can be away from the backlight source 2 under the action of the reset spring 313, which is convenient for maintenance and installation.

[0028] Through the cooperation between the teeth 408 and the limit seat 412, the winding roller 401 can maintain a stable state after completing the winding of the pull wire 311, reducing the risk of the pull wire 311 getting loose. The design allows the winding roller 401 to be separated from the limit seat 412 through a simple pressing operation, thereby loosening the pull wire 311, which is convenient for the maintenance and disassembly of the backlight source 2. By turning the twist plate 405 to adjust the rotation of the rotating roller 404 and the winding roller 401, the winding of the pull wire 311 can be accurately controlled.

[0029] Through the wire pulling mechanism 311 of the control component 4, multiple positioning seats 302 can be automatically or manually moved close to the backlight source 2 and fixed at the same time, which greatly simplifies the fixing process. Compared with the traditional bolt fixing method, the operation is more convenient. The design of the metal positioning seat 302 allows it to fully contact the backlight source 2, effectively conduct the static electricity of the backlight source 2, prevent static electricity from affecting the equipment, and improve the anti-static effect. The positioning seat 302 is designed to be flush with the surface of the grounding platform 1, maintain consistency when not fixed, improve the overall aesthetics, and there will be no protruding parts that affect the visual effect. Multiple positioning seats 302 can contact the backlight source 2 synchronously to ensure that the grounding and static electricity conduction of the entire backlight source 2 are uniform and stable, which improves the stability and reliability of the equipment. The design of the guide window 309 and the limit groove 310 provides precise motion control, so that the positioning seat 302 can accurately contact the backlight source 2, enhancing the accuracy and safety of the fixation. The anti-static design of the backlight source 2 provides a convenient, beautiful and powerful solution through an efficient mechanical structure and control component 4, which is particularly suitable for electronic devices and display screens that require anti-static protection.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anti-static backlight source (2), characterized in that: The invention comprises a grounding platform (1), a backlight source (2) being arranged on the surface of the grounding platform (1), a grounding component (3) being arranged on a side of the grounding platform (1) close to the backlight source (2), a control component (4) being arranged on an end of the grounding component (3) away from the backlight source (2), the grounding component (3) comprising four embedding grooves (301), the embedding grooves (301) being arranged around a side of the grounding platform (1) close to the backlight source (2), a positioning seat (302) being arranged inside the embedding grooves (301), a sliding inclined surface (303) being arranged on a side of the embedding groove (301) close to the axis of the grounding platform (1), and an embedding window (306) being arranged at the bottom of the inner cavity of the embedding groove (301). The positioning seat (302) is fixedly connected to a guide seat (307) on one side close to the embedding window (306); the guide seat (307) is fixedly connected to a limiting plate (308) on one end away from the positioning seat (302); a guide window (309) matching the guide seat (307) is provided on one side of the embedding groove (301) close to the axis of the grounding platform (1); a limiting groove (310) matching the limiting plate (308) is provided at the bottom of the inner cavity of the guide window (309); a pull wire (311) is fixedly connected to one side of the positioning seat (302) close to the guide window (309); the control component (4) comprises a winding roller (401); the grounding platform (1 ) is sleeved on the surface of the winding roller (401), one end of the winding roller (401) away from the rotating bearing (402) is fixedly connected to a rotating roller (404), one end of the rotating roller (404) away from the winding roller (401) is fixedly connected to a twisting plate (405), a fixed roller (406) is sleeved on the surface of the rotating roller (404), a rotating window (407) penetrating the fixed roller (406) is provided in the middle of the fixed roller (406), an outer ring wall of the fixed roller (406) is fixedly connected to the grounding platform (1) through an elastic member, a plurality of inclined grooves (409) are provided on the surface of one end of the fixed roller (406) close to the winding roller (401), and the bottom of the inner cavity of the inclined groove (409) is fixedly connected to A fixed cylinder (410), wherein a telescopic spring (411) is built into the fixed cylinder (410), one end of the telescopic spring (411) contacts the bottom of the inner cavity of the fixed cylinder (410), and the other end of the telescopic spring (411) is fixedly connected to a limit seat (412), the limit seat (412) and the telescopic spring (411) are both placed in an inclined groove (409), a trigger inclined surface (413) is provided at one end of the limit seat (412) close to the winding roller (401), and a plurality of teeth (408) are fixedly connected to one end of the winding roller (401) close to the fixed roller (406), and the winding roller (401) is fixedly contacted with the limit seat (412) via the plurality of teeth (408).

2. The anti-static backlight source (2) according to claim 1, characterized in that: The four embedding grooves (301) are evenly distributed around the axis of the grounding platform (1); the positioning seat (302) is slidably connected to the groove wall of the embedding groove (301); an upper half of the positioning seat (302) close to the sliding inclined surface (303) is provided with an inclined surface (304) matching therewith; the inclined surface (304) is in contact with the sliding inclined surface (303) and is slidably connected therewith; and a lower half of the positioning seat (302) close to the sliding inclined surface (303) is provided with a vertical surface (305) for contacting the side wall of the backlight source (2).

3. The anti-static backlight source (2) according to claim 1, characterized in that: The guide seat (307) and the limit plate (308) are placed in the embedded window (306); the guide seat (307) is slidably connected to the inner wall of the guide window (309); the limit plate (308) is slidably connected to the wall of the limit groove (310); and the guide window (309) passes through the grounding platform (1) and extends to the axis of the grounding platform (1).

4. The anti-static backlight source (2) according to claim 1, characterized in that: One end of the pull wire (311) away from the positioning seat (302) passes through the guide window (309) and extends to the control component (4), and a plurality of the positioning seats (302) are connected to the control component (4) via the pull wire (311).

5. The anti-static backlight source (2) according to claim 1, characterized in that: A plurality of return springs (313) are fixedly connected to a side of the positioning seat (302) away from the axis of the grounding platform (1), and the plurality of return springs (313) are evenly distributed along the length direction of the positioning seat (302).

6. The anti-static backlight source (2) according to claim 5, characterized in that: A plurality of fixing grooves (312) are formed on a side of the embedding groove (301) away from the axis of the grounding platform (1), and the plurality of fixing grooves (312) are evenly distributed along the length direction of the embedding groove (301). One end of the return spring (313) away from the positioning seat (302) is sleeved in the fixing groove (312), and the return spring (313) is fixedly connected to the bottom of the inner cavity of the fixing groove (312).

7. The anti-static backlight source (2) according to claim 1, characterized in that: The winding roller (401) passes through the grounding platform (1); a rotating bearing (402) is sleeved on the surface of the winding roller (401); an inner ring wall of the rotating bearing (402) is fixedly connected to the winding roller (401); an outer ring wall of the rotating bearing (402) is fixedly connected to the grounding platform (1); and the winding roller (401) is rotatably connected to the grounding platform (1) via the rotating bearing (402).

8. The anti-static backlight source (2) according to claim 1, characterized in that: The axis of the winding roller (401) coincides with that of the grounding platform (1); two partitions (403) are sleeved on the surface of the winding roller (401); the partitions (403) are fixedly connected to the winding roller (401); a gap exists between the two partitions (403); one end of the four pulling wires (311) away from the positioning seat (302) is wound around the surface of the winding roller (401); the pulling wires (311) are fixedly connected to the winding roller (401); and a plurality of the pulling wires (311) are placed between the two partitions (403).

9. The anti-static backlight source (2) according to claim 1, characterized in that: One end of the rotating roller (404) away from the winding roller (401) passes through the rotating window (407) and extends to the outside of the grounding platform (1); the rotating roller (404) is rotatably connected to the inner wall of the rotating window (407); and the fixed roller (406) is sleeved on the surface of the rotating roller (404) through the rotating window (407).

10. The anti-static backlight source (2) according to claim 1, characterized in that: The axes of the fixed roller (406), the rotating roller (404) and the grounding platform (1) coincide with each other; the plurality of inclined grooves (409) are evenly distributed around the axis of the fixed roller (406); the limiting seat (412) is slidably connected to the groove wall of the inclined groove (409); and the teeth (408) are slidably connected to the triggering inclined surface (413) of the limiting seat (412).

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