Holographic projection showcase shockproof glass fixed frame

Abstract

This utility model discloses a shockproof glass fixing frame for a holographic projection display cabinet, relating to the field of holographic projection technology. The utility model includes a cabinet body with a projection fixing frame at the top; a shock-absorbing mechanism is installed in the inner cavity of the cabinet body, comprising a fixing plate fixedly connected to the inner cavity, a damping rod fixedly connected to the top of the fixing plate, a first spring sleeved on the surface of the damping rod, and a support base fixedly connected to the top of the damping rod; a protective mechanism is installed at the top of the projection fixing frame. This utility model forms a multi-level shock absorption network by combining a primary buffer layer composed of a vertical damping rod and a first spring, with a secondary energy-dissipating structure composed of a horizontal sliding rod, a sliding sleeve, and an elastic sheet. Experiments show that this design can disperse impact energy, improve vibration attenuation efficiency compared to traditional single-spring structures, and significantly reduce the probability of microcrack formation at glass joints.

Description

Technical Field

[0001] This utility model belongs to the field of holographic projection technology, and in particular relates to the shockproof glass fixing frame of a holographic projection display cabinet. Background Technology

[0002] With the rapid development of holographic projection technology, holographic projection display cases are being used more and more widely in museums, exhibition halls, commercial centers and other venues. The core component of a holographic projection display case is the glass display panel at the top of the case, which not only needs to display holographic images but also needs to withstand the influence of the external environment.

[0003] The existing glass mounting frames of holographic projection display cases have the following main problems: Insufficient shock resistance: Traditional frames mostly use simple fixing methods. When external vibrations occur, the vibrations are directly transmitted to the glass display surface. Over time, this can lead to micro-cracks at the glass joints, reducing the lifespan of the glass. Lack of effective protection: The glass surfaces of most existing display cases are directly exposed to the outside, making them susceptible to damage from accidental collisions or scratches from foreign objects. The shock-absorbing structure is also simple.

[0004] To address these issues, we provide a shockproof glass mounting frame for holographic projection display cases. Utility Model Content

[0005] The purpose of this utility model is to provide a shockproof glass fixing frame for holographic projection display cabinets. Through the cooperation of shock-absorbing and protective mechanisms, it solves the problems of poor shockproof effect and susceptibility to external damage in the existing technology of glass fixing frames for holographic projection display cabinets.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a shockproof glass fixing frame for a holographic projection display cabinet, comprising a cabinet body with a projection fixing frame at the top; a shock-absorbing mechanism is provided in the inner cavity of the cabinet body, the shock-absorbing mechanism including a fixing plate fixedly connected to the inner cavity of the cabinet body, a damping rod fixedly connected to the top of the fixing plate, a first spring sleeved on the surface of the damping rod, and a support base fixedly connected to the top of the damping rod; a protective mechanism is provided at the top of the projection fixing frame, the protective mechanism including a chassis fixedly connected to the top of the fixing frame, a servo motor fixedly connected to one side of the chassis, a first worm gear fixedly connected to the output shaft of the servo motor, a first threaded rod fixedly connected to the other end of the first worm gear, a first bevel gear fixedly connected to the surface of the first threaded rod, a second bevel gear meshing with the surface of the first bevel gear, and a second threaded rod fixedly connected to the axis of the second bevel gear.

[0008] The present invention is further configured such that a mounting plate is fixedly connected to the top of the fixed plate, a sliding rod is fixedly connected to one side of the mounting plate, a sliding sleeve is slidably connected to the surface of the sliding rod, and an elastic sheet is fixedly connected to the top of the sliding sleeve. The sliding rod is symmetrically distributed on both sides of the mounting plate, and the elastic sheet is made of arc-shaped spring steel sheet, with its two ends respectively hinged to the top of the sliding sleeve. When the cabinet is subjected to vibration and impact, the sliding sleeve slides along the sliding rod, and the elastic sheet bends and deforms to absorb the horizontal vibration energy, thus preventing stress cracks in the glass due to combined vibration.

[0009] The present invention is further configured such that a second spring is sleeved on the surface of the slide rod, one end of the second spring is fixedly connected to one side of the mounting plate, and the other end of the second spring is fixedly connected to one side of the slide sleeve. When the slide sleeve is displaced by an external force, the second spring compresses and stores energy, and pushes the slide sleeve to reset after the impact disappears. Together with the first spring, it achieves rapid dissipation of vibration energy and reduces the continuous damage of resonance to the glass connection.

[0010] The present invention is further configured such that both the first threaded rod and the second threaded rod are threadedly connected to threaded sleeves, and a baffle plate is fixedly connected to the surface of the threaded sleeve. When the servo motor is started, the two threaded rods rotate synchronously, driving the threaded sleeves to move to one side of the cabinet, thereby moving the baffle plate in the through groove to form a physical barrier covering the glass and preventing splashes from impacting it.

[0011] The present invention is further configured such that a second worm is fixedly connected to one end of the second threaded rod, and worm wheels are meshed on the surfaces of both the first worm and the second worm.

[0012] The present invention is further configured such that a roller is fixedly connected to the worm gear shaft, and a protective net is wound around the surface of the roller. The worm gear drive can synchronously drive the roller to rotate, so that the roller and the baffle move in conjunction to avoid the protective net from getting tangled.

[0013] The present invention is further configured such that a through slot is provided on one side of the chassis, and the number of the through slots is four.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model forms a multi-level shock absorption network by combining a primary buffer layer composed of a vertical damping rod and a first spring with a secondary energy dissipation structure composed of a horizontal sliding rod, a sliding sleeve, and an elastic sheet. Experiments show that this design can disperse impact energy, improve vibration attenuation efficiency compared to the traditional single-spring structure, and significantly reduce the probability of microcracks forming at the glass joint.

[0016] 2. This utility model uses a servo motor to drive a double worm gear and bevel gear transmission system to achieve synchronous reverse movement of the threaded sleeve and automatic retraction and unfolding of the protective net. When the protective net is unfolded, it forms a barrier, taking into account both rapid protection and space efficiency. Through the worm gear and worm structure, it ensures that there are no loose folds when the protective net is unfolded, and that it is tightly stored in a preset spiral path when retracted, avoiding the jamming problem of traditional roller shutter-type protective devices.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 A 3D view of the shockproof glass fixing frame for the holographic projection display case.

[0020] Figure 2 This is a cross-sectional view of the chassis within the shockproof glass fixing frame of a holographic projection display case.

[0021] Figure 3 A bottom view of the chassis within the shockproof glass fixing frame of the holographic projection display case.

[0022] Figure 4 This is a cross-sectional view of the cabinet within the shockproof glass fixing frame of the holographic projection display case.

[0023] Figure 5 This is a top view of the fixing plate in the shockproof glass fixing frame of the holographic projection display case.

[0024] In the attached diagram: 1. Cabinet; 2. Projection fixing frame; 3. Fixing plate; 4. Damping rod; 5. First spring; 6. Support base; 7. Chassis; 8. Servo motor; 9. First worm gear; 10. First threaded rod; 11. First bevel gear; 12. Second bevel gear; 13. Second threaded rod; 14. Mounting plate; 15. Slide rod; 16. Slide sleeve; 17. Elastic sheet; 18. Second spring; 19. Threaded sleeve; 20. Baffle plate; 21. Second worm gear; 22. Worm wheel; 23. Roller; 24. Protective net; 25. Through groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Please see Figures 1-5This utility model is a shockproof glass fixing frame for a holographic projection display cabinet, including a cabinet body 1, a projection fixing frame 2 on the top of the cabinet body 1; a shock-absorbing mechanism is provided in the inner cavity of the cabinet body 1, the shock-absorbing mechanism includes a fixing plate 3 fixedly connected to the inner cavity of the cabinet body 1, a damping rod 4 fixedly connected to the top of the fixing plate 3, a first spring 5 sleeved on the surface of the damping rod 4, and a support seat 6 fixedly connected to the top of the damping rod 4; a protective mechanism is provided on the top of the projection fixing frame 2, the protective mechanism includes a chassis 7 fixedly connected to the top of the fixing frame, a servo motor 8 fixedly connected to one side of the chassis 7, a first worm gear 9 fixedly connected to the output shaft of the servo motor 8, a first threaded rod 10 fixedly connected to the other end of the first worm gear 9, a first bevel gear 11 fixedly connected to the surface of the first threaded rod 10, a second bevel gear 12 meshing with the surface of the first bevel gear 11, and a second threaded rod 13 fixedly connected to the axis of the second bevel gear 12.

[0028] Further details: The top of the fixed plate 3 adopts a symmetrical layout, with six damping rods 4 vertically fixed to the top of the fixed plate 3. Each damping rod 4 is coaxially sleeved with a first spring 5, forming a multi-directional buffer support structure. The top surface of the support base 6 is rigidly connected to the bottom surface of the projection fixed frame 2. The vertical impact energy is absorbed by the extension and contraction of the damping rods 4 and the elastic deformation of the first spring 5. The first worm 9 and the second worm 21 are orthogonally arranged, and the transmission ratio of the first bevel gear 11 to the second bevel gear 12 is 2:1, ensuring that the first threaded rod 10 and the second threaded rod 13 rotate synchronously in opposite directions, driving the threaded sleeves 19 on both sides to translate along the linear track, thereby realizing the symmetrical unfolding of the protective net 24.

[0029] Example 2

[0030] Please see Figures 1-5 Based on embodiment 1, a mounting plate 14 is fixedly connected to the top of the fixed plate 3, a sliding rod 15 is fixedly connected to one side of the mounting plate 14, a sliding sleeve 16 is slidably connected to the surface of the sliding rod 15, an elastic sheet 17 is fixedly connected to the top of the sliding sleeve 16, a second spring 18 is sleeved on the surface of the sliding rod 15, one end of the second spring 18 is fixedly connected to one side of the mounting plate 14, and the other end of the second spring 18 is fixedly connected to one side of the sliding sleeve 16. Threaded sleeves 19 are threadedly connected to the surfaces of the first threaded rod 10 and the second threaded rod 13, a baffle plate 20 is fixedly connected to the surface of the threaded sleeve 19, a second worm 21 is fixedly connected to one end of the second threaded rod 13, a worm wheel 22 is meshed on the surfaces of the first worm 9 and the second worm 21, a roller 23 is fixedly connected to the shaft of the worm wheel 22, a protective net 24 is wound around the surface of the roller 23, and a through groove 25 is opened on one side of the machine housing 7, with four through grooves 25.

[0031] Further details: The sliding rods 15 are symmetrically distributed on both sides of the mounting plate 14. The elastic sheet 17 is made of arc-shaped spring steel, with its two ends hinged to the top of the sliding sleeve 16. When the cabinet 1 is subjected to vibration and impact, the sliding sleeve 16 slides along the sliding rods 15. The elastic sheet 17 bends and deforms to absorb the horizontal vibration energy, preventing stress cracks in the glass due to combined vibration. When the sliding sleeve 16 is displaced by external force, the second spring 18 compresses and stores energy, and pushes the sliding sleeve 16 back to its original position after the impact disappears. Together with the first spring 5, it achieves rapid dissipation of vibration energy, reducing the continuous damage to the glass connection due to resonance. When the servo motor 8 is started, the double threaded rod rotates synchronously to drive the threaded sleeve 19 to move to one side of the cabinet 1, causing the shielding plate 20 to move in the through groove 25, forming a physical barrier covering the glass to prevent splashes from hitting it. The worm gear drive can synchronously drive the roller 23 to rotate, so that the roller 23 and the shielding plate 20 move in linkage, preventing the protective net 24 from getting tangled.

[0032] The working principle of this utility model is as follows: When external vibration is transmitted to the cabinet 1, it first acts on the support base 6. The damping rod 4 absorbs most of the vibration energy through hydraulic viscous resistance. At the same time, the first spring 5 undergoes elastic deformation, further consuming the vibration energy. Subsequently, the vibration is transmitted to the secondary buffer system composed of the sliding sleeve 16 and the second spring 18. The sliding sleeve 16 slides along the sliding rod 15, the second spring 18 is compressed and deformed, and the elastic sheet 17 disperses the vibration energy to a larger area, thereby achieving multi-level shock absorption protection for the projection fixing frame 2 and the glass.

[0033] When the glass surface needs protection, the servo motor 8 is activated via an external control panel (existing technology). The servo motor 8 drives the first worm gear 9 to rotate. The first worm gear 9 simultaneously drives the first threaded rod 10 and the first bevel gear 11 to rotate. The rotation of the first threaded rod 10 drives the threaded sleeve 19 connected to it to move forward, thereby driving the baffle 20 to move forward. At the same time, the first bevel gear 11 meshes with the second bevel gear 12, transmitting power to the second threaded rod 13. The rotation of the second threaded rod 13 drives the other threaded sleeve 19 to move forward, and the two baffles 20 move towards each other.

[0034] Simultaneously, the first worm 9 and the second worm 21 drive the worm wheel 22 to rotate, and the worm wheel 22 drives the roller 23 to rotate, releasing the protective net 24 wrapped around its surface to form a protective barrier covering the projection glass surface. When protection is not needed, it rotates in the opposite direction to the servo motor 8, retracting the shield 20 and putting away the protective net 24. This not only prevents direct damage caused by accidental collisions but also prevents foreign objects in the daily environment from scratching the glass surface. The protective net 24 is normally in a stored state, which does not affect the display effect. It automatically unfolds when needed, saving space.

[0035] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A shockproof glass fixing frame for a holographic projection display cabinet, comprising a cabinet body (1), characterized in that: The top of the cabinet (1) is provided with a projection fixing frame (2); The cabinet (1) is equipped with a shock-absorbing mechanism. The shock-absorbing mechanism includes a fixed plate (3) fixedly connected to the inner cavity of the cabinet (1), a damping rod (4) fixedly connected to the top of the fixed plate (3), a first spring (5) sleeved on the surface of the damping rod (4), and a support seat (6) fixedly connected to the top of the damping rod (4). The top of the projection fixing frame (2) is provided with a protective mechanism, which includes a chassis (7) fixedly connected to the top of the fixing frame, a servo motor (8) fixedly connected to one side of the chassis (7), a first worm (9) fixedly connected to the output shaft of the servo motor (8), a first threaded rod (10) fixedly connected to the other end of the first worm (9), a first bevel gear (11) fixedly connected to the surface of the first threaded rod (10), a second bevel gear (12) meshing with the surface of the first bevel gear (11), and a second threaded rod (13) fixedly connected to the axis of the second bevel gear (12).

2. The shockproof glass fixing frame for the holographic projection display cabinet according to claim 1, characterized in that: The top of the fixed plate (3) is fixedly connected to the mounting plate (14), and a sliding rod (15) is fixedly connected to one side of the mounting plate (14). A sliding sleeve (16) is slidably connected to the surface of the sliding rod (15), and an elastic sheet (17) is fixedly connected to the top of the sliding sleeve (16).

3. The shockproof glass fixing frame for the holographic projection display cabinet according to claim 2, characterized in that: A second spring (18) is sleeved on the surface of the slide rod (15). One end of the second spring (18) is fixedly connected to one side of the mounting plate (14), and the other end of the second spring (18) is fixedly connected to one side of the slide sleeve (16).

4. The shockproof glass fixing frame for the holographic projection display cabinet according to claim 1, characterized in that: Both the first threaded rod (10) and the second threaded rod (13) are threaded with threaded sleeves (19), and a baffle plate (20) is fixedly connected to the surface of the threaded sleeves (19).

5. The shockproof glass fixing frame for the holographic projection display cabinet according to claim 1, characterized in that: The second threaded rod (13) is fixedly connected to a second worm (21) at one end, and worm wheels (22) are meshed on the surfaces of the first worm (9) and the second worm (21).

6. The shockproof glass fixing frame for the holographic projection display cabinet according to claim 5, characterized in that: A roller (23) is fixedly connected to the shaft of the worm gear (22), and a protective net (24) is wrapped around the surface of the roller (23).

7. The shockproof glass fixing frame for the holographic projection display cabinet according to claim 1, characterized in that: The chassis (7) has four through slots (25) on one side.

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