A display counter for a dual mode switch

Abstract

The utility model relates to a display cabinet technology field, concretely is a kind of display cabinet of double mode switch, including cabinet, the bottom of cabinet is rotatably connected with the lower ball screw of setting along the depth direction of cabinet, lower ball screw is screw-connected with lower push rack;The top of cabinet is rotatably connected with the upper ball screw of setting along the depth direction of cabinet, upper ball screw is screw-connected with upper push rack;Hand-cranking drive assembly and electric drive assembly for driving lower ball screw and upper ball screw synchronous rotation are installed at the bottom of cabinet.The utility model constructs a kind of double mode mechanism that can replace electric push rod, for the opening and closing of control cabinet door;The mechanism is designed with double mode drive, and mechanical movement process is smooth and unobstructed, can realize the stable and coherent opening of cabinet door, in the emergent condition such as power failure, power failure, guarantee cabinet door normal opening by hand-cranking mode, perfect fit the functional requirement of double mode switch.

Description

Technical Field

[0001] This utility model relates to the field of display cabinet technology, specifically a display cabinet with a dual-mode switch. Background Technology

[0002] In cultural venues such as museums and memorial halls, in-wall display cases are essential for showcasing precious cultural relics and historical collections. Embedded entirely within the wall, they maximize space utilization, maintain the cleanliness and aesthetics of the venue layout, and create a relatively stable preservation environment for exhibits. Transparent doors ensure the safe display of artifacts, allowing visitors to appreciate the weight of history and culture and the charm of art. This system is a key facility for balancing the needs of artifact preservation and public viewing.

[0003] The existing in-wall display cabinet mainly consists of a cabinet frame, a wall-mounted fixing part, a cabinet door assembly, and a drive system. The cabinet frame serves as the basic support structure, providing a stable skeleton for the entire cabinet. The wall-mounted fixing part securely connects the cabinet to the wall, ensuring overall stability after installation. The cabinet door assembly includes the door glass and upper and lower aluminum profiles for fixing the glass. Single-row bearing rollers are mounted on the upper and lower aluminum profiles to assist the cabinet door in lateral movement. The drive system uses an electric push rod as its core driving component, providing power for opening and closing the cabinet door.

[0004] During the process of opening the cabinet door, it is necessary to first push the cabinet door to the outside of the wall using an electric push rod, and then pull the cabinet door left or right to open it. However, the electric push rod is entirely dependent on electricity. In the event of a power outage or other emergency, the drive system will fail, and the cabinet door will neither be able to move from inside the wall to the outside nor be pulled left or right, resulting in the cabinet door being unable to open. This causes great inconvenience to the removal, replacement, and maintenance of exhibits. To address this, we have proposed a dual-mode switch display cabinet to effectively solve the above-mentioned drawbacks. Utility Model Content

[0005] The purpose of this utility model is to provide a display cabinet with a dual-mode switch, which solves the problem mentioned in the background art that the cabinet door cannot be opened when there is a power outage or power failure, as the existing technology uses an electric push rod as the driving component.

[0006] This utility model is achieved through the following technical solution: a dual-mode switch display cabinet, including a cabinet body, the front side of the cabinet body is open, the bottom of the cabinet body is rotatably connected to a lower ball screw arranged along the depth direction of the cabinet body, and a lower push bracket is threadedly connected to the lower ball screw.

[0007] An upper ball screw is rotatably connected to the top of the cabinet and is arranged along the depth direction of the cabinet. An upper push frame is threaded onto the upper ball screw. A glass door is movably arranged between the lower push frame and the upper push frame. The glass door can move along the width direction of the cabinet.

[0008] A connecting shaft is rotatably connected to the rear side of the cabinet, which is set along the height direction of the cabinet. A first multi-axis steering device is connected between the lower end of the connecting shaft and the lower ball screw. A second multi-axis steering device is connected between the upper end of the connecting shaft and the upper ball screw.

[0009] At the bottom of the cabinet are a hand-cranked drive assembly and an electric drive assembly for synchronously rotating the lower and upper ball screws.

[0010] Optionally, the lower push frame includes a light axis slider threadedly connected to the lower ball screw, a connecting rod fixed on the light axis slider along the width direction of the cabinet, and a plurality of light axes fixed on the connecting rod along the depth direction of the cabinet.

[0011] Wear-resistant sleeves corresponding to each optical axis are fixed on the front side of the cabinet. Each optical axis moves through the corresponding wear-resistant sleeve and its end is connected to the glass door.

[0012] Optionally, the structure of the upper pusher is the same as that of the lower pusher.

[0013] Optionally, the lower push frame is fixed to a lower wheel frame located outside the cabinet body at its end, a double-row bearing roller is installed on the front side of the lower wheel frame, and a double-groove track that cooperates with the double-row bearing roller is fixed on the rear side of the glass door.

[0014] An upper wheel frame is fixed to the end of the upper push frame, and a single row of bearing rollers is fixed to the front side of the upper wheel frame. A single groove track that cooperates with the single row of bearing rollers is fixed to the rear side of the glass door.

[0015] Optionally, the hand-cranked drive assembly includes a coupling installed at the bottom of the cabinet and connected to a lower ball screw drive, with a hand crank located outside the cabinet connected to the input end of the coupling.

[0016] Optionally, the electric drive assembly includes a dual-axis steering gear installed at the bottom of the cabinet and connected to a first multi-axis steering gear, one end of which is connected to a clutch, and a motor connected to the clutch is installed inside the cabinet.

[0017] Compared with the prior art, this utility model provides a display cabinet with a dual-mode switch, which has the following advantages:

[0018] This utility model utilizes a lower ball screw, a lower pusher frame, an upper ball screw, an upper pusher frame, a connecting shaft, a first multi-axis steering gear, and a second multi-axis steering gear. By combining a hand-cranked drive assembly with an electric drive assembly, a dual-mode mechanism is constructed to replace the electric push rod for controlling the opening and closing of cabinet doors. Thanks to its dual-mode drive design, the mechanical movement is smooth and unobstructed, enabling stable and continuous opening of the cabinet door. In the event of power outages or other emergencies, the hand-cranked mode ensures normal opening of the cabinet door, perfectly meeting the functional requirements of a dual-mode switch. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a diagram showing the glass door of this utility model in an open state;

[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0023] Figure 5 This is an exploded view of the present invention;

[0024] Figure 6 This is a schematic diagram of the hand-cranked drive assembly of this utility model.

[0025] In the diagram: 1. Cabinet; 2. Lower ball screw; 3. Lower push frame; 301. Optical shaft slider; 302. Connecting rod; 303. Optical shaft; 304. Wear-resistant sleeve; 4. Upper ball screw; 5. Upper push frame; 6. Glass door; 7. Connecting shaft; 8. First multi-axis steering gear; 9. Second multi-axis steering gear; 10. Hand-cranked drive assembly; 101. Coupling; 102. Hand crank wheel; 11. Electric drive assembly; 111. Dual-axis steering gear; 112. Clutch; 113. Motor; 12. Lower wheel frame; 13. Double-row bearing roller; 14. Double-groove track; 15. Upper wheel frame; 16. Single-row bearing roller; 17. Single-groove track. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1 to 6 A dual-mode switch display cabinet includes a cabinet body 1. The front of the cabinet body 1 is open, and in the normal state, the cabinet body 1 is embedded in the wall. The bottom of the cabinet body 1 is rotatably connected to a lower ball screw 2, which is set along the depth direction of the cabinet body 1. A lower push bracket 3 is threadedly connected to the lower ball screw 2.

[0028] An upper ball screw 4 is rotatably connected to the top of the cabinet 1 along the depth direction of the cabinet 1, and an upper pusher 5 is threaded onto the upper ball screw 4; a glass door 6 is movably arranged between the lower pusher 3 and the upper pusher 5, and the glass door 6 can move along the width direction of the cabinet 1.

[0029] When the glass door 6 needs to be moved out of the wall, the lower ball screw 2 and the upper ball screw 4 rotate synchronously, which drives the lower push bracket 3 and the upper push bracket 5 to move smoothly along the depth direction of the cabinet 1. This synchronous drive design provides balanced support and pushing force to the glass door 6, effectively preventing the glass door 6 from tilting or falling during the movement. This ensures that the glass door 6 can be moved stably and smoothly out of the wall, laying a solid foundation for subsequent opening and closing operations along the width direction, and further improving the reliability and safety of the cabinet operation.

[0030] A connecting shaft 7 is rotatably connected to the rear side of the cabinet 1 along the height direction of the cabinet 1. A first multi-axis steering gear 8 is connected between the lower end of the connecting shaft 7 and the lower ball screw 2. A second multi-axis steering gear 9 is connected between the upper end of the connecting shaft 7 and the upper ball screw 4. In this embodiment, the first multi-axis steering gear 8 adopts a three-axis design, and the second multi-axis steering gear 9 adopts a two-axis design. This structural setting can better adapt to the connection requirements of each component and ensure the accuracy of power transmission.

[0031] At the bottom of the cabinet 1 are a hand-cranked drive assembly 10 and an electric drive assembly 11 for driving the lower ball screw 2 and the upper ball screw 4 to rotate synchronously.

[0032] With the above design, the lower ball screw 2 and upper ball screw 4 can be driven synchronously by hand or electric means, thus smoothly pushing the glass door 6 out of the wall. Afterward, the glass door 6 can be easily pushed left and right to open. This structure not only ensures the synchronization and stability of the driving process, effectively reducing jamming or deviation during the movement of the glass door 6, but also, due to the dual-drive mode, allows for normal operation by hand in special circumstances such as power outages, improving the reliability and convenience of the cabinet. It also provides a strong guarantee for the smooth movement of the glass door 6.

[0033] In this embodiment, the lower pusher 3 includes a linear slider 301 threadedly connected to the lower ball screw 2. The linear slider 301 serves as a key node connecting the lower ball screw 2 to subsequent components, and can move with the rotation of the lower ball screw 2. A connecting rod 302, arranged along the width direction of the cabinet 1, is fixed to the linear slider 301. The connecting rod 302 connects and transmits force, transmitting the movement of the linear slider 301 to subsequent components. Several linear axes 303, arranged along the depth direction of the cabinet 1, are fixed to the connecting rod 302, providing stable support and guidance for the movement of the glass door 6.

[0034] Wear-resistant sleeves 304, corresponding one-to-one with each optical axis 303, are fixed on the front side of the cabinet 1. Each optical axis 303 moves through its corresponding wear-resistant sleeve 304 and its end is connected to the glass door 6. The wear-resistant sleeves 304 are made of wear-resistant material, which can effectively reduce the frictional wear at the junction of the optical axis 303 and the cabinet 1 during movement, greatly extend the service life of the optical axis 303 and the cabinet 1, and ensure the smooth movement of the optical axis 303.

[0035] It should be added that the structure of the upper pusher 5 is the same as that of the lower pusher 3. This symmetrical structure design allows the glass door 6 to be evenly stressed at both ends when it is driven, further ensuring the stability of the glass door 6 movement.

[0036] With the above design, when the lower ball screw 2 rotates, it drives the threadedly connected optical axis slider 301 to move axially along the lower ball screw 2. The movement of the optical axis slider 301 is transmitted to the optical axis 303 through the connecting rod 302. With the assistance of the wear-resistant sleeve 304, the optical axis 303 moves smoothly along the depth direction of the cabinet 1, thereby moving the glass door 6 to the outside of the wall. Throughout the process, the components work together seamlessly, not only transmitting force efficiently but also moving precisely, providing a reliable guarantee for the smooth removal of the glass door 6.

[0037] In existing technologies, the glass doors 6 of display cases typically rely on a single row of bearing rollers for left-right movement. However, because museum display case glass doors 6 often bear heavy loads, their opening rate can only reach 50%. When the opening rate exceeds 50%, the glass door 6 is prone to sagging due to the gap between the aluminum rail and the rollers, coupled with its own heavy load. Simultaneously, the aluminum material of the single row of rollers at the bottom may warp, severely affecting the normal use of the glass door 6 and the overall stability of the display case. Furthermore, in the event of power outages or other emergencies, the door cannot be opened, causing significant inconvenience to the maintenance and management of exhibits.

[0038] To address the aforementioned issues, this design incorporates targeted improvements: a lower push frame 3 is fixed at its end to a lower wheel frame 12 located outside the cabinet 1; a double-row bearing roller 13 is installed on the front side of the lower wheel frame 12; and a double-groove track 14 that mates with the double-row bearing roller 13 is fixed on the rear side of the glass door 6.

[0039] An upper wheel frame 15 is fixed to the end of the upper push frame 5. A single row of bearing rollers 16 is fixed to the front side of the upper wheel frame 15. A single groove track 17 that cooperates with the single row of bearing rollers 16 is fixed to the rear side of the glass door 6.

[0040] This design, through the cooperation of the double-row bearing rollers 13 and the double-groove track 14 at the bottom, significantly increases the force-bearing area and effectively reduces the gap between the aluminum track and the rollers. This improvement greatly increases the opening rate of the glass door 6 to 80%, while strictly controlling the drop height to within 10mm. The cooperation of the single-row bearing rollers 16 and the single-groove track 17 of the upper push frame 5, together with the bottom structure, further enhances the stability and smoothness of the glass door 6 during left and right movement, avoids various adverse phenomena caused by heavy loads, and greatly improves the performance and reliability of the display cabinet.

[0041] The following is a description of the hand-cranked drive assembly 10:

[0042] The hand-cranked drive assembly 10 includes a coupling 101 installed at the bottom of the cabinet 1 and connected to the lower ball screw 2. The input end of the coupling 101 is connected to a hand crank 102 located outside the cabinet 1, which is convenient for the operator to directly access and operate.

[0043] When the cabinet door needs to be moved manually, the operator only needs to turn the hand crank 102 located outside the cabinet 1. The torque generated by the hand crank 102 is then transmitted to the lower ball screw 2 through the coupling 101. Under the coordinated action of the connecting shaft 7, the first multi-axis steering gear 8, and the second multi-axis steering gear 9, the rotational power of the lower ball screw 2 is synchronously transmitted to the upper ball screw 4, causing the upper and lower ball screws to rotate synchronously. This, in turn, drives the upper push frame 5 and the lower push frame 3 to move in tandem, achieving smooth movement of the glass door 6. This design is not only convenient to operate but also provides efficient and stable power transmission, ensuring that the cabinet door can still be opened and closed normally when the electric mode is not available, effectively guaranteeing the smooth operation of exhibit maintenance, replacement, and other operations.

[0044] The electric drive assembly 11 is described below:

[0045] The electric drive assembly 11 includes a dual-axis steering gear 111 mounted at the bottom of the cabinet 1 and connected to the first multi-axis steering gear 8, which can flexibly change the direction of power transmission and ensure efficient power transmission. One end of the dual-axis steering gear 111 is connected to a clutch 112, which controls the on / off state of power transmission. A motor 113, which is driven by the clutch 112, is installed inside the cabinet 1, providing stable power output for the entire electric drive process.

[0046] When the cabinet door is driven in electric mode, the power generated by the motor 113 after starting is transmitted to the dual-axis steering gear 111 via the clutch 112. After the dual-axis steering gear 111 adjusts the power direction, it is then transmitted to the first multi-axis steering gear 8. Subsequently, with the cooperation of the connecting shaft 7 and the second multi-axis steering gear 9, the power is synchronously distributed to the upper ball screw 4 and the lower ball screw 2, driving them to rotate synchronously. This, in turn, drives the upper push frame 5 and the lower push frame 3 to move in coordination, achieving smooth movement of the glass door 6. The clutch 112 enables smooth switching between electric drive and manual drive, avoiding interference between the two drive modes, ensuring the stability and reliability of power transmission in electric drive mode, and making the electric opening and closing operation of the cabinet door more efficient and convenient.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A display cabinet for a dual-mode switch, comprising a cabinet body (1), wherein the front side of the cabinet body (1) is open, characterized in that: The bottom of the cabinet (1) is rotatably connected to a lower ball screw (2) arranged along the depth direction of the cabinet (1), and a lower push bracket (3) is threaded onto the lower ball screw (2). An upper ball screw (4) is rotatably connected to the top of the cabinet (1) along the depth direction of the cabinet (1), and an upper push bracket (5) is threaded onto the upper ball screw (4); a glass door (6) is movably arranged between the lower push bracket (3) and the upper push bracket (5), and the glass door (6) can move along the width direction of the cabinet (1). A connecting shaft (7) is rotatably connected to the rear side of the cabinet (1) along the height direction of the cabinet (1). A first multi-axis steering gear (8) is connected between the lower end of the connecting shaft (7) and the lower ball screw (2). A second multi-axis steering gear (9) is connected between the upper end of the connecting shaft (7) and the upper ball screw (4). A hand-cranked drive assembly (10) and an electric drive assembly (11) for driving the lower ball screw (2) and the upper ball screw (4) to rotate synchronously are installed at the bottom of the cabinet (1).

2. The display cabinet for a dual-mode switch according to claim 1, characterized in that: The lower push frame (3) includes an optical axis slider (301) threaded onto the lower ball screw (2), a connecting rod (302) fixed on the optical axis slider (301) along the width direction of the cabinet (1), and a plurality of optical axes (303) fixed on the connecting rod (302) along the depth direction of the cabinet (1). Wear-resistant sleeves (304) corresponding to each optical axis (303) are fixed on the front side of the cabinet (1). Each optical axis (303) moves through the corresponding wear-resistant sleeve (304) and its end is connected to the glass door (6).

3. The display cabinet for a dual-mode switch according to claim 2, characterized in that: The structure of the upper pusher (5) is the same as that of the lower pusher (3).

4. The display cabinet for a dual-mode switch according to claim 1, characterized in that: The lower push frame (3) is fixed at the end of a lower wheel frame (12) located outside the cabinet (1). A double-row bearing roller (13) is installed on the front side of the lower wheel frame (12), and a double-groove track (14) that cooperates with the double-row bearing roller (13) is fixed on the rear side of the glass door (6). The upper push frame (5) is fixed with an upper wheel frame (15) at its end. A single row of bearing rollers (16) is fixed to the front side of the upper wheel frame (15). A single groove track (17) that cooperates with the single row of bearing rollers (16) is fixed to the rear side of the glass door (6).

5. A display cabinet for a dual-mode switch according to claim 1, characterized in that: The hand-cranked drive assembly (10) includes a coupling (101) installed at the bottom of the cabinet (1) and connected to the lower ball screw (2) for transmission. The input end of the coupling (101) is connected to a hand crank (102) located outside the cabinet (1).

6. The display cabinet for a dual-mode switch according to claim 1, characterized in that: The electric drive assembly (11) includes a dual-axis steering gear (111) installed at the bottom of the cabinet (1) and connected to the first multi-axis steering gear (8). One end of the dual-axis steering gear (111) is connected to a clutch (112), and a motor (113) is installed inside the cabinet (1) and is drivenly connected to the clutch (112).

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