LED display screen box body with damping function

Abstract

The utility model provides an LED display screen box with a shock absorption function, and relates to the technical field of LED display screen boxes, the LED display screen box comprises a display screen box body, a shock absorption mechanism is arranged in the display screen box body, the shock absorption mechanism comprises a first hydraulic damping rod, the lower end of the first hydraulic damping rod is fixedly installed on the inner bottom wall of the display screen box body, and the lower end of the first hydraulic damping rod is fixedly installed on the inner bottom wall of the display screen box body. The upper end of the first hydraulic damping rod is fixedly connected with a movable plate, the inner wall of the movable plate is slidably connected with supporting rods which are symmetrically distributed in a sleeving mode, and the damping mechanism comprises the first hydraulic damping rod, a first buffer spring, a second hydraulic damping rod, a second buffer spring and the like; according to the LED display screen, the influence of vibration in the operation process of an elevator car on the LED display screen body can be greatly reduced, vertical vibration caused by lifting starting and stopping of the car or slight shaking in the operation process can be effectively absorbed and buffered, internal elements of the display screen are protected, and the service life of the display screen is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to LED display screen box technical field especially relates to a LED display screen box with shock attenuation function. BACKGROUND

[0002] The LED display screen box is an important component of the LED display screen, used for accommodating and protecting the display module, power supply and control system and other components inside. It is usually made of aluminum alloy or steel and other materials, with good strength and stability. The design of the box takes into account the functions of heat dissipation, waterproofing, dustproofing and other functions to adapt to different use environments. The size and shape are various, and can be spliced and combined according to actual needs to realize the construction of display screens of different scales and shapes, providing clear and stable display effects for users, and widely used in advertising display, stage performance, traffic indication and other fields.

[0003] The existing LED display screen box for displaying advertisements in the elevator is subjected to different degrees of vibration during each acceleration, uniform speed and deceleration stage due to the frequent lifting of the elevator car. Especially at the moment of starting and stopping, the strong impact force is transmitted to the LED display screen box through the car structure, and then the vibration is transmitted to the LED display screen. Long-term vibration easily causes the lamp bead connection welding point of the LED display screen to be easily loose, causing local display abnormalities or even black screen, and increasing the maintenance burden. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problems existing in the prior art, such as the long-term vibration of the LED display screen in the elevator car, which easily causes display abnormalities and black screen, and increases the maintenance burden.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A LED display screen box with shock attenuation function, comprising a display screen box body, a shock attenuation mechanism is arranged in the inside of the display screen box body, and the shock attenuation mechanism comprises a first hydraulic damping rod, the lower end of the first hydraulic damping rod is fixedly installed with the inner bottom wall of the display screen box body;

[0007] The upper end of the first hydraulic damping rod is fixedly connected with a movable plate, the inner wall of the movable plate is slidably sleeved with a support rod which is symmetrically distributed, the inner bottom wall of the display screen box body is fixedly connected with a first buffer spring which is symmetrically distributed, one end of the two first buffer springs is fixedly connected with the lower end of the movable plate, the lower end of the two support rods is fixedly connected with the inner bottom wall of the display screen box body, and the front surface of the movable plate is fixedly connected with a buffer block.

[0008] Preferably, the front of the buffer block is provided with a limiting sliding groove, and the inner walls of the two sides of the limiting sliding groove are fixedly installed with the second hydraulic damping rods which are symmetrically distributed.

[0009] Preferably, one end of the second hydraulic damping rod is fixedly connected with a limiting sliding block, the outer part of the limiting sliding block is in sliding connection with the inner wall of the limiting sliding groove, and one side of the inner wall of the limiting sliding groove is fixedly connected with a second limiting buffer spring.

[0010] Preferably, one end of the second limiting buffer spring is fixedly connected with one side of the limiting sliding block, the front of each of the two limiting sliding blocks is fixedly connected with a mounting plate, and the front of the mounting plate is fixedly bonded with a first damping pad.

[0011] Preferably, the front of the first damping pad is fixedly installed with an LED display body through bolts, and the back of the display screen box body is provided with inclined strip-shaped heat dissipation openings which are linearly arranged.

[0012] Preferably, the front of the display screen box body is provided with a mounting opening, one end of the mounting opening is in communication with the inside of the display screen box body, and the inner wall of the mounting opening is fixedly sleeved with a transparent protective plate.

[0013] Preferably, the back of the display screen box body is fixedly connected with L-shaped fixing blocks which are arranged in a rectangular array, and the back of the L-shaped fixing block is fixedly bonded with a second damping pad.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] In the present application, the damping mechanism, including the first hydraulic damping rod, the first buffer spring, the second hydraulic damping rod and the second limiting buffer spring, can greatly reduce the influence of the vibration of the elevator car during operation on the LED display body, effectively absorb and buffer the up-down vibration caused by the lifting start-stop of the car and the slight shaking during operation, protect the internal elements of the display screen and prolong the service life of the display screen. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A main body structure schematic view of the LED display screen box body with the damping function is provided in the present application.

[0017] Figure 2 A LED display body structure perspective view of the LED display screen box body with the damping function is provided in the present application.

[0018] Figure 3 An activity plate structure perspective view of the LED display screen box body with the damping function is provided in the present application.

[0019] Figure 4 The utility model provides a kind of buffer block structure explosion map of LED display screen box body with shock-absorbing function provided by the utility model;

[0020] Figure 5 The utility model provides a kind of L type fixed block structure perspective view of LED display screen box body with shock-absorbing function provided by the utility model.

[0021] Legend: 1, display screen box body;2, first hydraulic damping rod;21, movable plate;22, support rod;23, first buffer spring;24, buffer block;25, limit sliding slot;26, second hydraulic damping rod;27, limit sliding block;28, second buffer spring;29, mounting plate;210, first shock pad;211, LED display screen body;3, oblique strip-shaped heat dissipation port;4, mounting port;5, transparent protective plate;6, L type fixed block;7, second shock pad. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the embodiments of the utility model below, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the protection scope of the utility model.

[0023] In order to facilitate understanding of the utility model, the utility model will be described more fully with reference to related, several embodiments of the utility model are given, however, the utility model can be realized in many different forms, and is not limited to the embodiments described in the present text, on the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can be a middle element, when an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be a middle element, the terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs, the terms used in the specification of the utility model herein are only for the purpose of describing specific embodiments, and are not intended to limit the utility model, the term "and / or" used herein includes any and all combinations of one or more related listed items. EMBODIMENT

[0026] As Figures 1-5 The utility model provides a technical scheme: a LED display screen box body with damping function, including display screen box body 1, display screen box body 1 selects high strength, lightweight and has good heat dissipation performance's aluminium alloy material and is carefully made, this material not only can effectively reduce the weight of whole box, reduces elevator operation energy consumption, can also in complex elevator operation environment, rely on self excellent strength characteristics, resist certain degree of external force impact, ensure the safety of internal element, the inside fine layout of display screen box body 1 has damping mechanism, protects LED display screen body 211 from the interference of elevator car operation vibration, greatly prolongs the service life of display screen, and damping mechanism includes first hydraulic damping rod 2, and first hydraulic damping rod 2 lower end passes through high strength bolt and is firmly fixed with the inner bottom wall of display screen box body 1 Stable installation, ensure reliable connection, provide solid support for subsequent damping action.

[0027] The upper end of the first hydraulic damping rod 2 is fixedly connected with a movable plate 21 by welding process. The movable plate 21 is made of a metal plate with both rigidity and toughness, and its inner wall is finely processed and gap-fitted with the symmetrically distributed support rods 22. The support rods 22 can smoothly slide therein to provide accurate guidance for the up-down movement of the movable plate 21. The inner bottom wall of the display screen box body 1 is fixedly connected with the symmetrically distributed first buffer springs 23 by welding. The first buffer springs 23 are made of high-quality spring steel with a strictly tested elastic coefficient and are subjected to a fine heat treatment process to ensure stable and durable elasticity. One end of each of the two first buffer springs 23 is fixedly connected with the lower end of the movable plate 21 by welding, forming a stable elastic buffer system that cooperates with the first hydraulic damping rod 2 to jointly cope with the up-down vibration. The lower ends of the two support rods 22 are also fixedly connected with the inner bottom wall of the display screen box body 1 by welding, strengthening the support structure of the movable plate 21. The front surface of the movable plate 21 is fixedly connected with a buffer block 24 by strong glue. The buffer block 24 is a key link connecting the display screen and the damping mechanism, and has a clever structure design with multi-directional damping function.

[0028] A limiting sliding groove 25 is formed on the front surface of the buffer block 24 by precise milling process. Symmetrically distributed second hydraulic damping rods 26 are fixedly installed on the two inner walls of the limiting sliding groove 25 by screws. The second hydraulic damping rods 26 have a fine internal structure, containing a high-precision throttle hole and a piston assembly with excellent sealing performance. When hydraulic oil flows through the throttle hole, it can accurately generate a damping force opposite to the direction of movement of the sliding block, effectively limiting the excessive displacement of the sliding block.

[0029] One end of the second hydraulic damping rod 26 is fixedly connected with a limiting sliding block 27 through welding, the limiting sliding block 27 is made of wear-resistant and high-strength metal material, the outer part is in close sliding connection with the inner wall of the limiting sliding groove 25, so that the sliding is smooth and accurate, one side of the inner wall of the limiting sliding groove 25 is fixedly connected with a second limiting buffer spring 28 through welding, the second limiting buffer spring 28 is made of the same material and process as the first buffer spring 23, so that the elastic force is stable, and key power is provided for horizontal shock absorption.

[0030] One end of the second limiting buffer spring 28 is fixedly connected with one side of the limiting sliding block 27 through welding, the front surfaces of the two limiting sliding blocks 27 are fixedly connected with mounting plates 29 through welding, the mounting plates 29 provide a flat and stable basis for the installation of the LED display body 211, the front surface of the mounting plate 29 is fixedly connected with a first shock pad 210 through strong adhesive, the first shock pad 210 is made of rubber material with high elasticity and good sound absorption and noise reduction performance, can further absorb slight vibration, and isolate part of noise generated due to vibration, so as to create a quiet and stable working environment for the LED display body 211.

[0031] The front surface of the first shock pad 210 is fixedly connected with the LED display body 211 through high-strength bolts, so that the display screen is firmly installed and will not be loose and displaced in a vibrating environment, the back surface of the display box body 1 is provided with inclined strip-shaped heat dissipation openings 3 arranged in a linear array by using a laser cutting process, the inclined strip-shaped heat dissipation openings 3 are designed according to the principle of aerodynamics, which can not only ensure smooth exchange of air inside and outside the box body, effectively dissipate heat generated by the LED display body 211 during operation, and maintain its appropriate working temperature, but also can prevent dust, sundries and the like from directly entering the box body from the outside to affect the normal operation of the display screen.

[0032] The front surface of the display box body 1 is provided with a mounting opening 4 by using a precision milling process, one end of the mounting opening 4 is in communication with the inside of the display box body 1, which provides a special space for the installation of the transparent protective plate 5, the inner wall of the mounting opening 4 is fixedly connected with the transparent protective plate 5 through interference fit, the transparent protective plate 5 is made of high-strength and high-transparency acrylic material, which can clearly display the image information of the LED display body 211, and can resist slight impact from the outside in the elevator car, such as accidental collision of passengers, falling of car wall decorations and the like, to provide additional physical protection for the display screen.

[0033] The back of the display screen box body 1 is fixedly connected with L-shaped fixing blocks 6 arranged in a rectangular array by welding, the L-shaped fixing blocks 6 provide convenient and stable connecting points for the installation of the display screen box on the wall of the elevator car, the back of the L-shaped fixing block 6 is fixedly bonded with a second damping pad 7 by means of strong adhesive, the second damping pad 7 is also made of rubber material, and can effectively buffer the vibration transmitted to the box during the running of the car, further insulate the vibration source, and comprehensively ensure the reliable operation of the display screen in the elevator car.

[0034] The working process of the utility model is as follows:

[0035] Step one, when the elevator car runs and generates up-down vibration, the vibration is first transmitted to the display screen box body 1, the first hydraulic damping rod 2 in the display screen box body 1 will play a role, the movable plate 21 connected to the upper end of the first hydraulic damping rod 2 has a tendency to move up and down due to the vibration, the hydraulic oil in the first hydraulic damping rod 2 generates a damping force opposite to the movement direction through structures such as throttle holes, consumes the vibration energy, slows down the moving speed of the movable plate 21, and at the same time, the first buffer spring 23 symmetrically distributed is compressed or stretched, the elastic potential energy of the spring is stored and released, and the vibration is assisted, so that the up-down movement of the movable plate 21 tends to be stable;

[0036] Step two, the buffer block 24 on the front of the movable plate 21 is linked, if the buffer block 24 has a tendency of transverse displacement, the second hydraulic damping rod 26 and the second buffer spring 28 in the limiting sliding groove 25 start to work, the limiting sliding block 27 at one end of the second hydraulic damping rod 26 slides in the sliding groove, the hydraulic oil flow generates a damping force, limits the excessive movement of the sliding block, and the second buffer spring 28 is synchronously stretched and contracted, further buffers the transverse vibration, and ensures that the LED display screen body 211 installed on the front of the buffer block 24 can be effectively damped in the longitudinal and transverse directions;

[0037] Step three, if horizontal vibration is generated, the limiting sliding block 27 slides left and right in the limiting sliding groove 25, the second hydraulic damping rod 26 and the second buffer spring 28 work together to absorb and dissipate the horizontal vibration energy, and ensure the stability of the display screen, in daily operation, the heat generated by the LED display screen body 211 is naturally dissipated through the back inclined strip-shaped heat dissipation port 3, the appropriate working temperature is maintained, the front transparent protective plate 5 blocks possible impact objects, and the back L-shaped fixing block 6 and the second damping pad 7 are fixed and installed at the same time, continuously weaken the vibration from the car wall, and comprehensively ensure the reliable operation of the display screen in the elevator car.

[0038] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An LED display screen enclosure with shock absorption function, comprising a display screen enclosure body (1), characterized in that: The display screen box body (1) is provided with a shock absorption mechanism inside, and the shock absorption mechanism includes a first hydraulic damping rod (2), the lower end of the first hydraulic damping rod (2) is fixedly installed to the inner bottom wall of the display screen box body (1); The upper end of the first hydraulic damping rod (2) is fixedly connected to a movable plate (21). The inner wall of the movable plate (21) is slidably sleeved with symmetrically distributed support rods (22). The inner bottom wall of the display screen box body (1) is fixedly connected with symmetrically distributed first buffer springs (23). One end of each of the two first buffer springs (23) is fixedly connected to the lower end of the movable plate (21). The lower ends of each of the two support rods (22) are fixedly connected to the inner bottom wall of the display screen box body (1). The front of the movable plate (21) is fixedly connected with a buffer block (24).

2. The LED display cabinet with shock absorption function according to claim 1, characterized in that: The buffer block (24) has a limiting groove (25) on its front side, and the inner walls of the limiting groove (25) are fixedly installed with second hydraulic damping rods (26) that are symmetrically distributed.

3. The LED display cabinet with shock absorption function according to claim 2, characterized in that: One end of the second hydraulic damping rod (26) is fixedly connected to a limiting slider (27), the outside of the limiting slider (27) is slidably connected to the inner wall of the limiting groove (25), and a limited second buffer spring (28) is fixedly connected to one side of the inner wall of the limiting groove (25).

4. The LED display cabinet with shock absorption function according to claim 3, characterized in that: One end of the second buffer spring (28) is fixedly connected to one side of the limiting slider (27), and the front of both limiting sliders (27) is fixedly connected to the mounting plate (29), and the front of the mounting plate (29) is fixedly bonded with the first shock-absorbing pad (210).

5. The LED display cabinet with shock absorption function according to claim 4, characterized in that: The front of the first shock-absorbing pad (210) is fixedly mounted with an LED display body (211) by bolts, and the back of the display body (1) is provided with oblique strip heat dissipation vents (3) arranged in a linear array.

6. The LED display cabinet with shock absorption function according to claim 1, characterized in that: The front of the display screen box body (1) is provided with an installation port (4), one end of the installation port (4) is connected to the interior of the display screen box body (1), and a transparent protective plate (5) is fixedly sleeved on the inner wall of the installation port (4).

7. The LED display cabinet with shock absorption function according to claim 1, characterized in that: The back of the display screen box body (1) is fixedly connected to an L-shaped fixing block (6) arranged in a rectangular array, and a second shock-absorbing pad (7) is fixedly bonded to the back of the L-shaped fixing block (6).

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