A display cabinet

Abstract

The present invention relates to the field of display cabinets, and specifically discloses a display cabinet, including a cabinet body, a protective cover and a top plate, wherein the protective cover is composed of a cover body and an openable cabinet door, the cross section of the cover body is U-shaped, the cabinet door is arranged at the opening of the U-shaped cross section of the cover body, a movable plate which can slide toward the opening of the cover body and slide to one side of the cover body is arranged on the upper side of the cabinet body, a loading platform is fixed on the movable plate, the upper end surface of the loading platform is depressed downward to form a receiving cavity, and an inflatable expansion airbag is fixed in the side wall of the receiving cavity. Before placing exhibits, the loading platform slides to one side of the cover body with the movable plate, so as to reduce the restriction of the cover body on the operating space when placing exhibits, and after the exhibits are placed in the receiving cavity, as the expansion airbag is inflated, the expansion airbag fixes the base of the exhibit in the receiving cavity, thereby ensuring the stability of the exhibits during the exhibition.

Description

Technical Field

[0001] The invention relates to the field of display cabinets, in particular to a display cabinet. Background Art

[0002] Display cabinets are mainly used for storing and displaying exhibits. When placing exhibits in existing display cabinets, the presence of glass protective covers limits the operating space for placing exhibits. For some relatively precious exhibits, the placement process may be inconvenient. In addition, existing display cabinets do not have corresponding fixing measures for exhibits. When the display cabinet is subjected to vibration or impact, the exhibits inside may fall over, thereby causing damage to the exhibits. Summary of the invention

[0003] The object of the present invention is to provide a display cabinet to overcome the above-mentioned defects in the prior art.

[0004] The present invention provides a display cabinet, comprising a cabinet body, a protective cover and a top plate, wherein the protective cover is composed of a cover body and an openable cabinet door, the cross section of the cover body is U-shaped, the cabinet door is arranged at the opening of the U-shaped cross section of the cover body, a movable plate which can slide toward the opening of the cover body and slide to one side of the cover body is arranged on the upper side of the cabinet body, a loading platform is fixed on the movable plate, the upper end surface of the loading platform is recessed downward to form a receiving cavity, and an inflatable expansion airbag is fixed in the side wall of the receiving cavity.

[0005] According to the above technical solution mentioned in the display cabinet of the present invention: before placing the exhibits, the loading platform slides to one side of the cover body with the movable plate, so as to reduce the restriction of the cover body on the operating space when placing the exhibits; after the exhibits are placed in the receiving cavity, as the expansion airbag is inflated, the expansion airbag fixes the exhibit base in the receiving cavity, thereby ensuring the stability of the exhibits during the exhibition.

[0006] In the above technical solution, an air pumping cavity located at the lower side of the object-carrying cavity is provided in the loading platform, a piston is slidably connected in the air pumping cavity, and a ventilation tube is connected between the air pumping cavity and the expansion airbag.

[0007] According to the above technical solution mentioned in the display cabinet of the present invention: the air in the inflation chamber can be injected into the expansion airbag through the sliding of the piston, so that the expansion airbag expands and clamps the exhibit base.

[0008] In the above technical solution, a downwardly recessed sliding cavity is provided on the upper end surface of the cabinet, and an opening is arranged at one end of the sliding cavity close to the opening of the cover body. The movable plate is slidably connected in the sliding cavity, and a push rod is fixed on the end surface of the piston away from the ventilation pipe. The push rod is slidably connected in the movable plate and extends out of the movable plate, and the end of the push rod away from the piston can abut against a side wall opposite to the opening of the sliding cavity.

[0009] According to the above technical solution mentioned in the display cabinet of the present invention: the moving plate slides in the sliding cavity, and when the push rod abuts against the side wall of the sliding cavity, as the moving plate continues to slide, the push rod is pushed, thereby compressing the piston, so that after the moving plate completely slides into the sliding cavity, the expansion airbag automatically expands and clamps the exhibit.

[0010] In the above technical solution, two guide grooves parallel to the sliding direction of the moving plate are provided in the bottom wall of the sliding cavity, and two limit bars slidably connected to the guide grooves are fixed on the lower end surface of the moving plate. A first screw is rotatably connected in the guide groove, and the first screw passes through the limit bar and is threadedly connected to the limit bar. A motor is fixed in the cabinet, and the first screw is fixed on the rotating shaft of the motor.

[0011] According to the above technical solution mentioned in the display cabinet of the present invention: as the motor rotates, the first screw rotates, thereby driving the limit bar to slide along the guide groove, thereby realizing the movement of the movable plate.

[0012] In the above technical solution, the limit bar is composed of a vertical part and a horizontal part to form an inverted "T" shape, the vertical part of the limit bar is fixed on the movable plate, and the cross-sectional shape of the guide groove is consistent with that of the limit bar.

[0013] According to the above technical solution mentioned in the display cabinet of the present invention: the inverted "T"-shaped limit bar can limit it to slide in the guide groove, and the "I" shape formed by the limit bar and the movable plate can effectively increase the bending strength of the movable plate, ensuring that the movable plate can remain straight when the exhibit is placed on the loading platform.

[0014] In the above technical solution, a side of the cabinet body that is flush with the opening of the cover body is provided with an inwardly recessed groove, an opening and closing plate is embedded in the groove, the cabinet door is fixed on the upper end surface of the opening and closing plate, and two sliding grooves perpendicular to the groove and connected to the groove are provided in the cabinet body. The two sliding grooves are symmetrically arranged up and down, and a sliding seat is slidably connected in the sliding groove. The sliding seat is hinged with a rocker arm at one end close to the groove through a hinge shaft, and the other end of the rocker arm is fixed to the opening and closing plate, and the length of the rocker arm is greater than half the length of the groove.

[0015] According to the above technical solution mentioned in the display cabinet of the present invention: the swing rod completely extends out of the slide groove as the sliding seat slides, and the opening and closing plate can be rotated to one side of the cover body by rotating the swing rod, and then the cabinet door is rotated to one side of the cover body, so that the opening of the cover body is completely exposed.

[0016] In the above technical solution, a torsion spring cavity is opened in the part where the rocker arm and the sliding seat are hinged, and a torsion spring surrounding the hinge shaft is arranged in the torsion spring cavity. One end of the torsion spring is fixed on the hinge shaft, and the other end is fixed on the side wall of the torsion spring cavity. Both ends of the hinge shaft are fixed in the sliding seat.

[0017] According to the technical solution mentioned in the display cabinet of the present invention, the elastic force of the torsion spring can be used to automatically fold the swing arm after it is fully extended out of the slide slot, thereby driving the opening and closing plate to rotate to one side of the cover body.

[0018] In the above technical solution, a through slot is provided between the two slide slots, a connecting block is fixed between the two sliding seats, the connecting block is slidably connected in the through slot, the sliding distance of the connecting block in the through slot is consistent with the length of the rocker arm, a second screw is threadedly connected to the connecting block, both ends of the second screw are rotatably connected to the side walls of the through slot, a motor is fixed in the cabinet, and one end of the second screw is fixed to the rotating shaft of the motor.

[0019] According to the above technical solution mentioned in the display cabinet of the present invention: the second screw is driven to rotate by a motor, so that the two sliding seats can be driven to slide along the sliding groove at the same time.

[0020] The beneficial effect of the display cabinet of the present invention is that before placing exhibits, the loading platform slides to one side of the cover body with the movable plate, thereby reducing the restriction of the cover body on the operating space when placing exhibits; after the exhibits are placed in the receiving cavity, as the expansion airbag is inflated, the expansion airbag fixes the exhibit base in the receiving cavity, thereby ensuring the stability of the exhibits during the exhibition. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the working state of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the stage in the present invention;

[0024] Figure 4 is a cross-sectional schematic diagram of the stage of the present invention;

[0025] Figure 5 is a cross-sectional schematic diagram of the second screw in the present invention;

[0026] Figure 6 The present invention Figure 5 The enlarged schematic diagram of point A in the middle;

[0027] Figure 7 is a cross-sectional schematic diagram of the swing rod in the present invention;

[0028] Figure 8 The present invention Figure 7 The enlarged schematic diagram of point B in the middle;

[0029] Fig. 9 It is a schematic diagram of the positional relationship between the swing rod and the limit bar in the present invention.

[0030] In the figure:

[0031] 10. Cabinet body; 101. Sliding cavity; 102. Guide; 103. Limiting groove; 104. Recess; 11. Opening and closing plate; 20. Cover body; 21. Cabinet door; 30. Top plate; 40. Moving plate; 41. Limiting strip; 42. First screw; 50. Loading platform; 501. Loading cavity; 502. Inflating cavity; 51. Inflatable airbag; 52. Push rod; 53. Ventilation pipe; 54. Piston; 55. Cavity; 60. Rocker arm; 601. Torsion spring cavity; 61. Sliding seat; 62. Articulated shaft; 63. Torsion spring; 64. Second screw; 65. Connecting block; 66. Motor; 67. Limiting block. DETAILED DESCRIPTION

[0032] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of simplifying the description of the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described in conjunction with the embodiments below. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention. As used herein, the terms up, down and left, right are not limited to their strict geometric definitions, but include reasonable and inconsistent tolerances for machining or human errors. The specific features of the display cabinet are described in detail below:

[0034] An embodiment of the present invention:

[0035] Reference Figure 1-Figure 9 The present invention provides a display cabinet, including a cabinet body 10, a protective cover and a top plate 30. A light source is fixed on the lower end surface of the top plate 30 for illuminating exhibits. The protective cover is composed of a cover body 20 and an openable cabinet door 21. The cross section of the cover body 20 is U-shaped. The cabinet door 21 is arranged at the opening of the U-shaped cross section of the cover body 20. A movable plate 40 is arranged on the upper side of the cabinet body 10 and can slide toward the opening of the cover body 20 and slide to one side of the cover body 20. A loading platform 50 is fixed on the movable plate 40. The upper end surface of the loading platform 50 is recessed downward to form a receiving cavity 501. An inflatable expansion airbag 51 is fixed in the side wall of the receiving cavity 501.

[0036] Reference Figure 4An air-inflating chamber 502 is provided in the loading platform 50 and is located at the lower side of the object-carrying chamber 501 . A piston 54 is slidably connected in the air-inflating chamber 502 . A ventilation tube 53 is connected between the air-inflating chamber 502 and the expansion airbag 51 .

[0037] Reference Figure 3 A downwardly recessed sliding cavity 101 is provided on the upper end surface of the cabinet 10, and an opening is set at one end of the sliding cavity 101 close to the opening of the cover body 20. The movable plate 40 is slidably connected in the sliding cavity 101. A push rod 52 is fixed to the end surface of the piston 54 on the side away from the ventilation pipe 53. The push rod 52 is slidably connected in the movable plate 40 and extends out of the movable plate 40. The end of the push rod 52 away from the piston 54 can abut against a side wall opposite to the opening of the sliding cavity 101. A cavity 55 is provided in the stage 50 and is located on one side of the inflation cavity 502. The push rod 52 extends from the piston 54 into the cavity 55, bends downward and then extends horizontally through the movable plate 40, and the push rod 52 slides in the movable plate 40.

[0038] Reference Figure 3 Two guide grooves 102 parallel to the sliding direction of the moving plate 40 are provided in the bottom wall of the sliding cavity 101. Two limit bars 41 slidably connected to the guide grooves 102 are fixed on the lower end surface of the moving plate 40. A first screw 42 is rotatably connected in the guide groove 102. The first screw 42 penetrates the limit bar 41 and is threadedly connected to the limit bar 41. A motor is fixed in the cabinet 10, and the first screw 42 is fixed on the rotating shaft of the motor.

[0039] Reference Figure 3 The limit strip 41 is formed into an inverted "T" shape by a vertical portion and a horizontal portion. The vertical portion of the limit strip 41 is fixed on the movable plate 40. The limit strip 41 and the movable plate 40 form an "I" shape. The cross-sectional shape of the guide groove 102 is consistent with that of the limit strip 41.

[0040] Reference Figure 5 , Figure 6 , Figure 8 , Fig. 9The cabinet body 10 is provided with a recessed groove 104 on one side flush with the opening of the cover body 20. The opening and closing plate 11 is embedded in the recessed groove 104. A lock core for locking the opening and closing plate 11 is fixed in the recessed groove 104. The cabinet door 21 is fixed on the upper end surface of the opening and closing plate 11. The cabinet body 10 is provided with two slide grooves perpendicular to the groove 104 and connected to the groove 104. The two slide grooves are symmetrically arranged up and down. A sliding seat 61 is slidably connected in the slide groove. The end of the sliding seat 61 close to the groove 104 is hinged by a hinge shaft 62. There is a rocker arm 60, the other end of which is fixed on the opening and closing plate 11. The length of the rocker arm 60 is greater than half the length of the groove 104. Limiting grooves 103 are provided along the length direction of the slide groove on both side walls. Limiting blocks 67 sliding in the limiting grooves 103 are fixed on the end faces of the sliding seat 61 on both sides. The length of the limiting groove 103 is less than the length of the slide groove, thereby limiting the sliding distance of the sliding seat 61 to prevent the sliding seat 61 from sliding out of the slide groove. The connecting part of the slide groove and the groove 104 is chamfered.

[0041] Reference Figure 6-Figure 8 A torsion spring cavity 601 is provided in the hinged part of the rocker arm 60 and the sliding seat 61, and a torsion spring 63 surrounding the hinge shaft 62 is arranged in the torsion spring cavity 601. One end of the torsion spring 63 is fixed on the hinge shaft 62. When the sliding seat 61 and the rocker arm 60 are in the same straight line, the torsion spring 63 is in a torsion storage state, and the other end of the torsion spring 63 is fixed on the side wall of the torsion spring cavity 601, and both ends of the hinge shaft 62 are fixed in the sliding seat 61.

[0042] Reference Figure 6 A through slot is provided between the two slide slots, and the width of the through slot is smaller than that of the slide slot, so that the sliding seat 61 is restricted to slide in the slide slot, and a connecting block 65 is fixed between the two sliding seats 61, and the connecting block 65 is slidably connected in the through slot, and the sliding distance of the connecting block 65 in the through slot is consistent with the length of the rocker rod 60, and a second screw rod 64 is connected to the inner thread of the connecting block 65, and both ends of the second screw rod 64 are rotatably connected to the side wall of the through slot, and a motor 66 is fixed in the cabinet 10, and one end of the second screw rod 64 is fixed to the rotating shaft of the motor 66.

[0043] When placing exhibits in the display cabinet of the present invention, the motor 66 is first started to drive the second screw 64 to rotate, thereby driving the connecting block 65 to move along the through groove toward the opening direction close to the cover body 20, and then the two sliding seats 61 move along the slide groove, and the opening and closing plate 11 moves with the swing rod 60 in the direction away from the groove 104 until the swing rod 60 extends out of the slide groove. In this process, when the hinge shaft 62 moves to be flush with the chamfer of the slide groove, the swing rod 60 tilts under the torsion of the torsion spring 63. As the part of the sliding seat 61 extending out increases, the swing rod 60 gradually rotates from a state of being straight with the sliding seat 61 to a state of being perpendicular to the sliding seat 61, so that the movement trajectory of the cabinet door 21 is first away from the groove 104, and then slowly rotates to one side of the cover body 20, so as to avoid the cabinet door 21 rotating too fast and causing excessive impact force, thereby ensuring the stability and strength of the cabinet door 21, and then turning off the motor 66.

[0044] Then, the motor is started to rotate the first screw rod 42, thereby driving the limit bar 41 to slide along the guide groove 102, thereby driving the movable plate 40 to slide toward the exit of the cover body 20 until the movable plate 40 is located at the front side of the cover body 20, and then the motor is turned off.

[0045] At this time, the exhibits are placed in the object-carrying cavity 501 . Since the outer periphery of the loading platform 50 is now free of the enclosure of the cover body 20 , the convenience of placing the exhibits is increased.

[0046] Next, the motor is started in reverse, which drives the first screw rod 42 to reverse, so that the movable plate 40 moves into the sliding chamber 101 until the movable plate 40 is completely located in the sliding chamber 101. During this process, after the push rod 52 abuts against the side wall of the sliding chamber 101, as the movable plate 40 continues to move, the push rod 52 is compressed, thereby pushing the piston 54 to slide in the inflation chamber 502, and the air in the inflation chamber 502 is injected into the expansion airbag 51 through the vent pipe 53, so that the expansion airbag 51 expands and clamps the exhibit base, thereby ensuring the stability of the exhibit during the exhibition.

[0047] Finally, the motor 66 is started in the reverse direction, and the second screw 64 is reversed to make the connecting block 65 move away from the groove 104, so that the sliding seat 61 pulls the swing rod 60 back into the slide slot until the opening and closing plate 11 is restored to the groove 104, and the cabinet door 21 and the cover body 20 surround the exhibit, and the opening and closing plate 11 is locked by the lock core in the groove 104.

[0048] It will be clear to those skilled in the art that various modifications to the above embodiments may be made without departing from the overall spirit and concept of the present invention. All of these modifications fall within the scope of protection of the present invention. The protection scheme of the present invention shall be subject to the claims attached to the present invention.

Claims

1. A display cabinet, comprising a cabinet body (10), a protective cover and a top plate (30), characterized in that: The protective cover is composed of a cover body (20) and an openable cabinet door (21); the cross section of the cover body (20) is U-shaped; the cabinet door (21) is arranged at the opening of the U-shaped cross section of the cover body (20); a movable plate (40) is arranged on the upper side of the cabinet body (10) and can slide toward the opening of the cover body (20) and slide to one side of the cover body (20); a loading platform (50) is fixed on the movable plate (40); the upper end surface of the loading platform (50) is recessed downward to form a receiving cavity (501); an inflatable expansion airbag (51) is fixed in the side wall of the receiving cavity (501); The loading platform (50) is provided with an air-inflating chamber (502) located at the lower side of the loading chamber (501), a piston (54) is slidably connected in the air-inflating chamber (502), and a ventilating tube (53) is connected between the air-inflating chamber (502) and the expansion airbag (51); The upper end surface of the cabinet (10) is provided with a downwardly recessed sliding cavity (101), one end of the sliding cavity (101) being opened near the opening of the cover body (20), the movable plate (40) being slidably connected in the sliding cavity (101), a push rod (52) being fixed to the end surface of the piston (54) on the side away from the ventilation pipe (53), the push rod (52) being slidably connected in the movable plate (40) and extending out of the movable plate (40), and the end of the push rod (52) away from the piston (54) being capable of abutting against a side wall of the sliding cavity (101) opposite to the opening.

2. A display cabinet according to claim 1, characterized in that: Two guide grooves (102) parallel to the sliding direction of the movable plate (40) are provided in the bottom wall of the sliding cavity (101); two limit bars (41) slidably connected to the guide grooves (102) are fixed on the lower end surface of the movable plate (40); a first screw rod (42) is rotatably connected in the guide groove (102); the first screw rod (42) passes through the limit bar (41) and is threadedly connected to the limit bar (41); a motor is fixed in the cabinet (10); and the first screw rod (42) is fixed on the rotating shaft of the motor.

3. A display cabinet according to claim 2, characterized in that: The limiting strip (41) is formed into an inverted "T" shape by a vertical portion and a horizontal portion. The vertical portion of the limiting strip (41) is fixed on the movable plate (40). The cross-sectional shape of the guide groove (102) is consistent with that of the limiting strip (41).

4. The display cabinet according to claim 1, characterized in that: A groove (104) recessed inwardly is provided on a side of the cabinet body (10) flush with the opening of the cover body (20), an opening and closing plate (11) is embedded in the groove (104), the cabinet door (21) is fixed on the upper end surface of the opening and closing plate (11), two slide grooves perpendicular to the groove (104) and connected to the groove (104) are provided in the cabinet body (10), the two slide grooves are symmetrically arranged up and down, a sliding seat (61) is slidably connected in the slide groove, one end of the sliding seat (61) close to the groove (104) is hinged to a swing rod (60) through a hinge shaft (62), the other end of the swing rod (60) is fixed on the opening and closing plate (11), and the length of the swing rod (60) is greater than half the length of the groove (104).

5. A display cabinet according to claim 4, characterized in that: A torsion spring cavity (601) is provided in the hinged portion of the swing rod (60) and the sliding seat (61), and a torsion spring (63) surrounding the hinge shaft (62) is arranged in the torsion spring cavity (601). One end of the torsion spring (63) is fixed to the hinge shaft (62), and the other end is fixed to the side wall of the torsion spring cavity (601), and both ends of the hinge shaft (62) are fixed in the sliding seat (61).

6. A display cabinet according to claim 5, characterized in that: A through slot is provided between the two slide slots, a connecting block (65) is fixed between the two sliding seats (61), the connecting block (65) is slidably connected in the through slot, the sliding distance of the connecting block (65) in the through slot is consistent with the length of the rocker arm (60), the connecting block (65) is internally threadedly connected to a second screw rod (64), both ends of the second screw rod (64) are rotatably connected to the side wall of the through slot, a motor (66) is fixed in the cabinet (10), and one end of the second screw rod (64) is fixed to the rotating shaft of the motor (66).

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