Anti-collision protection liquid crystal display screen

Abstract

The application relates to an anti-collision protection liquid crystal display screen and relates to the technical field of liquid crystal display screens, which comprises a back plate, a mounting frame, a front panel and an anti-collision mechanism. The application has the effect of improving the anti-collision protection of the liquid crystal display screen. The anti-collision mechanism comprises a bottom frame, a partition plate, buffer cabins, protection mechanisms and clamping tongues, the anti-collision mechanism forms a plurality of buffer cabins through the bottom frame and the partition plate, each group of buffer cabins is provided with the protection mechanisms, a hierarchical buffer structure is formed by using an energy absorption plate, a spring, a transmission seat, a buffer arm and a buffer pad layer, collision load is gradually attenuated through elastic compression, swing shunting and extrusion energy consumption, so that the transmission of impact force to the front panel is reduced, the anti-impact protection capability of the bottom of the liquid crystal display screen is improved, and the service life of the liquid crystal display screen is prolonged.

Description

Technical Field

[0001] This application relates to the field of liquid crystal display technology, and in particular to a liquid crystal display with impact protection. Background Technology

[0002] A liquid crystal display (LCD) is a flat panel display device that uses liquid crystal molecules to change their optical properties under the influence of an electric field and works in conjunction with a backlight to display images. It typically consists of a display panel, a back panel, and a mounting structure. It is characterized by its thinness, high display clarity, and high integration, and is widely used in display terminals, industrial equipment, and electronic equipment.

[0003] Existing LCD screens typically lack a graded buffer structure at the bottom to handle impact loads. When struck by an external object, the impact force is easily concentrated and transmitted to the edges of the screen and the panel connection points. The energy absorption capacity of a single buffer is limited, and it is difficult to change the buffer path according to the degree of impact, which can easily lead to problems such as localized force concentration, insufficient buffering efficiency, and structural damage. Summary of the Invention

[0004] Therefore, it is necessary to provide a liquid crystal display screen with anti-collision protection to address the above-mentioned technical problems.

[0005] The anti-collision protection LCD screen provided in this application adopts the following technical solution: it includes a back panel, a mounting bracket at the rear end of the back panel, a front panel at the front end of the back panel, and an anti-collision mechanism disposed at the bottom end of the front panel. The anti-collision mechanism includes a bottom frame, partitions, buffer chambers, protective mechanisms, and latches. A set of bottom frames is provided at the bottom end of the front panel. At least two sets of partitions are provided at equal intervals inside the bottom frame, and at least two sets of buffer chambers are separated by the partitions. A set of protective mechanisms is provided in the middle of each buffer chamber, and a set of latches is provided at one end of each protective mechanism. The protection mechanism includes a fixed frame, an energy-absorbing plate, a bottom groove, and a buffer mechanism. Each buffer chamber is equipped with a set of fixed frames, and a set of energy-absorbing plates is located at the top center of each fixed frame. A bottom groove is located at the bottom of each fixed frame, and a buffer mechanism is installed in the bottom groove.

[0006] By adopting the above technical solution, the anti-collision mechanism is arranged at the bottom of the front panel. It divides the bottom frame into multiple independent buffer chambers by relying on the partition. The buffer chamber is equipped with a protective mechanism, which can realize the partitioned buffer protection of the bottom of the LCD screen, disperse the impact load when it is hit, and reduce the probability of damage to the bottom of the LCD screen.

[0007] Preferably, the partition is provided with bolt grooves at intervals.

[0008] By adopting the above technical solution, it is easy to assemble and lock the bottom frame and the front panel, improve the overall assembly firmness of the anti-collision mechanism, and facilitate disassembly and maintenance.

[0009] Preferably, the buffer mechanism includes a spring, a transmission seat, a groove, a contact block, a connecting shaft, a buffer arm, and a buffer pad. A set of springs is provided at the top of the bottom groove, and a set of transmission seats is connected to the bottom of the springs. A set of grooves is provided at both the left and right ends of the transmission seat. A set of contact blocks is provided at the bottom of the transmission seat, and the bottom ends of the contact blocks extend through to the bottom end of the bottom frame. A set of buffer arms is connected to both the left and right ends of the bottom groove through the connecting shaft. A set of buffer pads is provided on both the left and right sides of the bottom groove.

[0010] By adopting the above technical solution, the buffer mechanism is integrated in the bottom groove. When impacted, the contact block bears the external force and drives the transmission seat to move, and the spring, buffer arm and buffer pad work together to absorb the impact, thus constructing a multi-buffering system.

[0011] Preferably, the buffer arm has an "L" shaped structure, with the opposite ends of both sets of buffer arms extending into the groove, and the opposite ends of both sets of buffer arms facing each other and opposite to the buffer pad layer.

[0012] By adopting the above technical solution, one end of the L-shaped buffer arm extends into the groove. When the transmission seat moves down, it can push the buffer arm to swing, so that the buffer arm moves toward the buffer pad layer, converting the vertical impact into lateral compression energy absorption.

[0013] Preferably, there is a gap between the ends of the two sets of buffer arms that are far apart from each other and the buffer pad layer.

[0014] By adopting the above technical solution, a gap is reserved between the buffer arm and the buffer pad. Under normal conditions, the two do not contact each other. The buffer arm only comes into contact with the buffer pad when the collision reaches a certain impact intensity, so as to achieve graded buffering and avoid slight vibrations triggering the buffering action.

[0015] Preferably, the two adjacent sets of latches are alternately arranged front and back.

[0016] By adopting the above technical solution, the snap-fit ​​positioning effect between the anti-collision mechanism and the front panel is optimized, the assembly stability of the bottom frame is improved, and the assembly stress is dispersed.

[0017] Preferably, the top surface of the energy-absorbing plate is higher than the top surface of the fixed frame, and the top surface of the energy-absorbing plate is in contact with the bottom surface of the front panel.

[0018] By adopting the above technical solution, the energy-absorbing plate can directly absorb and buffer the force transmitted to the front panel, so as to avoid the fixed frame being impacted and rising to directly cause a rigid collision with the front panel.

[0019] Preferably, the energy-absorbing plate has a honeycomb structure and is elastic.

[0020] By adopting the above technical solution, the energy-absorbing panel can initially dissipate the impact force by deforming its own structure when it is squeezed, and evenly distribute the pressure to avoid local stress concentration on the bottom surface of the front panel, which could cause damage.

[0021] Preferably, the opposite ends of the left and right sets of buffer arms are spherical structures and extend into the left and right sets of grooves respectively.

[0022] By adopting the above technical solution, the spherical end can move smoothly in the groove, reducing the risk of movement jamming between the transmission seat and the buffer arm, and ensuring stable and reliable buffer transmission action.

[0023] Preferably, the bottom end of the contact block is provided with a wear-resistant buffer end.

[0024] By adopting the above technical solution, when the contact block directly impacts a foreign object, the end head is used for preliminary buffering and shock absorption, while reducing the wear and cracking of the contact block itself.

[0025] In summary, this application includes the following beneficial technical effects: 1. This application uses a bottom frame located at the bottom of the front panel. Inside the bottom frame, multiple independent buffer chambers are formed by partitions. Each buffer chamber is equipped with a protective mechanism, thereby dividing the bottom of the front panel into multiple independent protection areas. When the LCD screen is subjected to a local collision, the buffer chamber corresponding to the impact area can preferentially bear the impact load. The partitions separate and limit adjacent areas, reducing the concentrated transmission of impact load inside the bottom frame, so that the local collision is buffered in a regionalized manner, and improving the adaptability of the anti-collision mechanism to different collision positions.

[0026] 2. This application constructs a primary buffer structure with a continuous force transmission relationship by using an energy-absorbing plate, a spring, and a transmission seat connected to the spring in the protection mechanism. The energy-absorbing plate is located directly between the front panel and the fixed frame, which can absorb the impact transmitted to the front panel through elastic deformation. When the impact acts on the contact block, the contact block drives the transmission seat to compress the spring, which can effectively consume the impact energy, thereby forming a buffer path that transmits energy from the energy-absorbing plate to the spring step by step, reducing the degree to which rigid impacts directly act on the front panel.

[0027] 3. This application utilizes grooves on both sides of the transmission seat, buffer arms rotatably connected to the connecting shaft, and buffer pads located on the outside of the buffer arms to convert the vertical displacement of the transmission seat into the swing displacement of the buffer arms. When the impact load increases, the transmission seat drives the two sets of buffer arms to rotate synchronously and gradually bring the buffer arms against the buffer pads, converting part of the vertical impact into lateral compressive force for absorption and dispersion. This adds a lateral buffer path to the spring buffer, improving the overall structure's ability to dissipate larger impact loads.

[0028] 4. This application sets a gap between the buffer arm and the buffer pad, and uses the cooperation between the groove and the buffer arm to control the swing stroke of the buffer arm, so that the buffer mechanism has a graded triggering characteristic. When subjected to slight vibration or small impact, the buffer arm only swings slightly and does not immediately contact the buffer pad. The buffering effect is mainly borne by the energy-absorbing plate and the spring. When the impact load reaches a large extent, the buffer arm further squeezes the buffer pad, thereby reducing the ineffective and frequent pressure on the buffer pad and improving the stability and durability of the buffer mechanism.

[0029] 5. This application sets the contact block at the bottom of the transmission seat and extends it downward to the outside of the bottom frame. At the same time, a wear-resistant buffer end is set at the bottom of the contact block, so that the external impact can act on the contact block first, and then be transmitted to the spring and buffer arm through the transmission seat. The wear-resistant buffer end can provide initial buffering of the impact and reduce the direct wear of the contact block. The contact block and the internal buffer assembly cooperate with each other to improve the transmission mode of external impact load and improve the overall load-bearing capacity and buffering reliability of the anti-collision mechanism. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the rear view structure of this application; Figure 2 This is a schematic diagram of the anti-collision mechanism structure of this application; Figure 3 This is a partially enlarged structural schematic diagram of the anti-collision mechanism of this application; Figure 4 This is a schematic diagram of the internal structure of the fixed frame in this application.

[0031] Explanation of reference numerals in the attached drawings: 1. Back plate; 2. Mounting bracket; 3. Front panel; 4. Anti-collision mechanism; 41. Bottom frame; 42. Partition plate; 43. Buffer chamber; 44. Protective mechanism; 45. Clamping tongue; 421. Bolt slot; 441. Fixing frame; 442. Energy-absorbing plate; 443. Bottom groove; 444. Buffer mechanism; 4441. Spring; 4442. Transmission seat; 4443. Groove; 4444. Contact block; 4445. Connecting shaft; 4446. Buffer arm; 4447. Buffer pad. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0033] A shock-resistant LCD screen, reference Figures 1-4It includes a back panel 1, a mounting bracket 2, and a front panel 3. The back panel 1 serves as the load-bearing structure of the main body of the display screen, and its rear end is connected to an external installation position through the mounting bracket 2. The front panel 3 is located at the front end of the back panel 1 and is used to form the front structure of the display screen.

[0034] A collision protection mechanism 4 is provided at the bottom of the front panel 3. The collision protection mechanism 4 extends along the bottom of the front panel 3 and is used to reduce the impact load when the bottom of the display screen is hit by an external object. The collision protection mechanism 4 includes a bottom frame 41. There are not less than two sets of partitions 42 arranged at intervals along the length of the bottom frame 41. A buffer chamber 43 is formed between adjacent partitions 42, so that multiple independent buffer areas are formed inside the collision protection mechanism 4. By setting multiple buffer chambers 43, when the bottom of the display screen is hit by a local collision, the impact load can be preferentially borne and buffered by the buffer chamber 43 at the corresponding position, thereby reducing the situation where the impact force is concentrated and transmitted to the front panel 3.

[0035] Bolt slots 421 are provided at intervals on the partition plate 42. During assembly, the bottom frame 41 and the front panel 3 can be connected and fixed by fasteners passing through the bolt slots 421. The bolt slots 421 can ensure the installation stability of the bottom frame 41 while allowing the anti-collision mechanism 4 to be disassembled from the bottom of the front panel 3, so as to facilitate the subsequent inspection or replacement of the internal buffer components.

[0036] Each buffer chamber 43 is equipped with a protection mechanism 44. The protection mechanism 44 is installed on a fixed frame 441. The fixed frame 441 is located inside the buffer chamber 43 and has an energy-absorbing plate 442 at its top. The top of the energy-absorbing plate 442 is higher than the top surface of the fixed frame 441 and contacts the bottom surface of the front panel 3, so that a buffer area is formed between the fixed frame 441 and the front panel 3 separated by the energy-absorbing plate 442.

[0037] The energy-absorbing plate 442 adopts an elastic honeycomb structure, which forms multiple independent honeycomb cavities inside. When an external impact is applied to the bottom of the front panel 3, the energy-absorbing plate 442 is squeezed and undergoes elastic deformation. The honeycomb cavities are compressed according to the degree of force, thereby dispersing the impact load to various areas of the energy-absorbing plate 442. Since the energy-absorbing plate 442 has a certain degree of elasticity, it can deform and store some energy under the action of external force, while reducing the degree to which the impact force directly acts on the fixed frame 441.

[0038] The bottom of the fixed frame 441 is provided with a bottom groove 443, and a buffer mechanism 444 is installed in the bottom groove 443. A contact block 4444 is provided at the lower part of the buffer mechanism 444. The lower end of the contact block 4444 passes through the bottom frame 41 and extends to the bottom of the bottom frame 41, so that it can serve as a direct force-bearing component between the anti-collision mechanism 4 and the external collision object. The bottom end of the contact block 4444 is provided with a wear-resistant buffer end. When the contact block 4444 comes into contact with an external object, the wear-resistant buffer end can first generate a certain elastic deformation to reduce the rigid contact at the moment of collision, and at the same time reduce the wear caused by the contact block 4444 directly contacting the external hard object.

[0039] The upper end of the contact block 4444 is connected to the transmission seat 4442, which is located inside the bottom groove 443 and is connected to the spring 4441 located at the top of the bottom groove 443. Under normal conditions, the spring 4441 can apply a reset force to the transmission seat 4442, so that the contact block 4444 is held in a predetermined position below the bottom frame 41.

[0040] When the bottom of the display screen is hit by an external object, the contact block 4444 first receives an upward impact force, which drives the transmission seat 4442 to move upward synchronously. During the upward movement of the transmission seat 4442, the spring 4441 is compressed, so that part of the impact load is absorbed by the compression deformation of the spring 4441. After the collision ends, the spring 4441 pushes the transmission seat 4442 downward to reset by its own elastic restoring force, and the contact block 4444 returns to its initial position.

[0041] To further divert the impact load on the transmission seat 4442, grooves 4443 are provided on the left and right sides of the transmission seat 4442. Buffer arms 4446 are rotatably connected to the left and right sides of the bottom groove 443 via connecting shafts 4445. Both sets of buffer arms 4446 adopt an L-shaped structure, with their bent positions connected to the corresponding connecting shafts 4445, allowing the buffer arms 4446 to swing around the connecting shafts 4445. The ends of the two sets of buffer arms 4446 that are close to each other are set as spherical structures and extend into the corresponding grooves 4443.

[0042] When the transmission seat 4442 moves upward due to the impact force transmitted by the contact block 4444, the groove 4443 moves upward synchronously. The groove wall of the groove 4443 pushes the spherical end of the buffer arm 4446, causing the two sets of buffer arms 4446 to rotate around the connecting shaft 4445 respectively. Since the buffer arm 4446 adopts an L-shaped structure, the vertical movement of the transmission seat 4442 can be converted into the lateral swing of the end of the buffer arm 4446 away from the transmission seat 4442, thereby converting part of the vertical impact load into lateral extrusion force acting on both sides of the bottom groove 443.

[0043] The bottom groove 443 has buffer pads 4447 on the left and right sides respectively. The ends of the two sets of buffer arms 4446 that are far apart from each other are respectively set towards the corresponding buffer pads 4447, and maintain a certain gap with the buffer pads 4447 under normal conditions.

[0044] By setting the above gap, a certain triggering distance is formed between the buffer arm 4446 and the buffer pad 4447. When the display screen is subjected to only slight vibration or small impact, the displacement of the transmission seat 4442 is small. Although the buffer arm 4446 can swing at a certain angle with the transmission seat 4442, the end away from the transmission seat 4442 will not immediately contact the buffer pad 4447. At this time, the impact is mainly buffered by the energy absorption plate 442 and the spring 4441.

[0045] When the external impact force increases further, causing the transmission seat 4442 to displace upwards significantly, the buffer arm 4446 rotates accordingly. The end of the buffer arm that is away from the transmission seat 4442 gradually approaches and abuts against the buffer pad 4447. When it continues to be impacted, the buffer arm 4446 squeezes the buffer pad 4447, causing the buffer pad 4447 to undergo compression deformation and absorb the impact energy.

[0046] Thus, during a complete collision, the anti-collision mechanism 4 can form a buffering effect at different stages: in the initial stage of the collision, the energy-absorbing plate 442 initially absorbs the impact between the front panel 3 and the anti-collision mechanism 4. As the impact force is transmitted downward, the contact block 4444 drives the transmission seat 4442 to move, causing the spring 4441 to compress and further absorb the impact load. When the impact reaches a higher level, the transmission seat 4442 further drives the buffer arms 4446 on both sides to swing, causing the buffer arms 4446 to squeeze the buffer pad 4447 and disperse part of the impact load to both sides of the bottom groove 443.

[0047] Meanwhile, multiple buffer chambers 43 are separated from each other by partitions 42, so that each area can bear the impact load of the corresponding position. When the collision only acts on the local area at the bottom of the display screen, the buffer chamber 43 that is affected will deform and buffer first, while other buffer chambers 43 will be less affected, which helps to reduce the concentrated transmission of impact load inside the entire anti-collision mechanism 4.

[0048] The latches 45 corresponding to adjacent buffer chambers 43 are arranged in an alternating manner, so that multiple latching positions are misaligned in the front and rear directions. When the anti-collision mechanism 4 is installed, multiple latches 45 can respectively engage with the corresponding positions of the front panel 3, thereby improving the connection stability between the bottom frame 41 and the front panel 3, and distributing the load generated during the installation process to different positions.

[0049] When the external impact disappears, the spring 4441 pushes the transmission seat 4442 to gradually return to its initial position, and the contact block 4444 resets downwards in sync. During the reset process of the transmission seat 4442, the groove 4443 drives the buffer arm 4446 to swing in the opposite direction, so that the buffer arm 4446 gradually separates from the buffer pad 4447. The energy-absorbing plate 442 also recovers part of its original shape under its own elasticity, so that the anti-collision mechanism 4 returns to its normal state.

[0050] This application provides a collision-resistant LCD screen. The collision-resistant mechanism 4 utilizes the bottom frame 41 and the partition 42 to form multiple independent buffer chambers 43, achieving bottom-zoned buffering. Local impacts only affect the corresponding area, preventing the load from spreading throughout the entire area. It is adaptable to different collision points. A protective mechanism 44 is set in each buffer chamber 43, so that the energy-absorbing plate 442, spring 4441, buffer arm 4446, and buffer pad 4447 participate in buffering according to different stress stages. The energy-absorbing plate 442 first absorbs the impact force of the panel, and the spring 4441 further dissipates the bottom impact energy, avoiding rigid impact damage to the front panel 3. The groove 4443, buffer arm 4446, and buffer pad 4447 deflect the vertical impact. To absorb energy under lateral compression, a diversion buffer channel is added in addition to the spring buffer, which greatly improves the energy dissipation effect under high impact load. The contact block 4444 is exposed on the bottom frame 41 and equipped with a wear-resistant buffer end. The impact is first relieved by the end and the wear of the components is reduced before the impact is transmitted inward, which improves the overall load-bearing stability of the anti-collision mechanism 4. Compared with the method of using a single elastic element for buffering, this application can gradually increase the mechanical structure involved in buffering according to the degree of impact, so that the impact load is dispersed and absorbed through multiple paths, thereby reducing the damage caused by external impact to the front panel 3 and the back panel 1. At the same time, the anti-collision mechanism 4 adopts a detachable bottom frame 41 structure, which facilitates later maintenance and component replacement.

Claims

1. A collision-resistant liquid crystal display screen, comprising a back plate (1), wherein a mounting bracket (2) is provided at the rear end of the back plate (1), and a front panel (3) is provided at the front end of the back plate (1). Its features are: It also includes an anti-collision mechanism (4) set at the bottom of the front panel (3). The anti-collision mechanism (4) includes a bottom frame (41), a partition (42), a buffer chamber (43), a protection mechanism (44), and a latch (45). The bottom of the front panel (3) is provided with a set of bottom frames (41). The bottom of the bottom frame (41) is provided with at least two sets of partitions (42) at equal intervals, and at least two sets of buffer chambers (43) are separated by the partitions (42). The buffer chambers (43) are all provided with a set of protection mechanisms (44) in the middle. One end of the protection mechanism (44) is provided with a set of latches (45). The protection mechanism (44) includes a fixed frame (441), an energy-absorbing plate (442), a bottom groove (443), and a buffer mechanism (444). Each buffer chamber (43) is provided with a set of fixed frames (441). The fixed frame (441) is provided with a set of energy-absorbing plates (442) at the top and middle. The fixed frame (441) is provided with a bottom groove (443) at the bottom. The bottom groove (443) is installed with a buffer mechanism (444).

2. The anti-collision liquid crystal display screen according to claim 1, characterized in that: The partition (42) is provided with bolt grooves (421) at intervals.

3. The anti-collision liquid crystal display screen according to claim 1, characterized in that: The buffer mechanism (444) includes a spring (4441), a transmission seat (4442), a groove (4443), a contact block (4444), a connecting shaft (4445), a buffer arm (4446), and a buffer pad (4447). A set of springs (4441) is provided at the top of the bottom groove (443). A set of transmission seats (4442) is connected to the bottom of the springs (4441). A set of grooves (4443) is provided at both the left and right ends of the transmission seats (4442). A set of contact blocks (4444) is provided at the bottom of the transmission seats (4442). The bottom of the contact blocks (4444) extends through to the bottom end of the bottom frame (41). A set of buffer arms (4446) is connected to both the left and right ends of the bottom groove (443) through the connecting shaft (4445). A set of buffer pads (4447) is provided on both the left and right sides of the bottom groove (443).

4. The anti-collision liquid crystal display screen according to claim 3, characterized in that: The buffer arm (4446) has an "L" shaped structure. The opposite ends of the two sets of buffer arms (4446) extend into the groove (4443), and the opposite ends of the two sets of buffer arms (4446) are opposite to the buffer pad layer (4447).

5. The anti-collision liquid crystal display screen according to claim 4, characterized in that: There is a gap between the ends of the two sets of buffer arms (4446) that are far apart from each other and the buffer pad layer (4447).

6. The anti-collision liquid crystal display screen according to claim 1, characterized in that: The two adjacent sets of latches (45) are alternately arranged.

7. The anti-collision liquid crystal display screen according to claim 1, characterized in that: The top surface of the energy-absorbing plate (442) is higher than the top surface of the fixed frame (441), and the top surface of the energy-absorbing plate (442) is in contact with the bottom surface of the front panel (3).

8. The anti-collision liquid crystal display screen according to claim 7, characterized in that: The energy-absorbing plate (442) has a honeycomb structure and is elastic.

9. The anti-collision liquid crystal display screen according to claim 3, characterized in that: The opposite ends of the two sets of buffer arms (4446) are spherical structures and extend into the two sets of grooves (4443) respectively.

10. The anti-collision liquid crystal display screen according to claim 3, characterized in that: The bottom of the contact block (4444) is provided with a wear-resistant buffer end.

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