Linkage type cabin door structure and lifting screen

Abstract

The utility model relates to a linkage type cabin door structure and a lifting screen, and belongs to the technical field of lifting screens. The linkage type cabin door structure comprises a panel which is provided with an entrance and exit for the display device to pass through in a lifting mode; the cabin door is rotatably arranged on the panel, and the cabin door has an opening state for opening the entrance and exit and a closing state for closing the entrance and exit; the transmission mechanism comprises a pressure spring, a tension spring and a locking part, and when the display device abuts against the pressure spring, the locking part locks the cabin door in a closed state through the pressure spring; and when the display device is separated from the pressure spring, the locking part locks the cabin door in an open state through the tension spring. According to the scheme, opening and closing of the cabin door can be achieved through combined operation of the pressure spring and the tension spring, and the cabin door has the advantages of being simple in structure, convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting screens, in particular to a linkage cabin door structure and a lifting screen. Background Art

[0002] Liquid crystal display lifting screens are very commonly used in today's conference rooms. Their advantages are as follows: when the display is not in use, the display can be hidden below the desktop, which can not only make the conference room desktop cleaner and more beautiful, but also play a role in dust-proofing and anti-theft for the display.

[0003] However, with the continuous in-depth application of lifting screens in recent years, people have found that for the lifting screens sold on the market currently,

[0004] after the screen is lifted, it is necessary to control the opening and closing of the door body through additional controls, which increases the production cost. Summary of the Utility Model

[0005] To overcome the problems existing in the related art, the utility model provides a linkage cabin door structure and a lifting screen, which can realize the opening and closing of the cabin door through the combined operation of a compression spring and a tension spring, and has the characteristics of simple structure, convenience and quickness.

[0006] The first aspect of the utility model provides a linkage cabin door structure, including a panel, which has an inlet and outlet for the lifting of the display device to pass through;

[0007] A cabin door, rotatably arranged on the panel, the cabin door has an open state for opening the inlet and outlet and a closed state for closing the inlet and outlet;

[0008] A transmission mechanism, including a compression spring, a tension spring and a locking part. Among them, when the display device abuts against the compression spring, the locking part locks the cabin door in the closed state through the compression spring;

[0009] When the display device disengages from the compression spring, the locking part locks the cabin door in the open state through the tension spring.

[0010] In a possible implementation of the above first aspect, the locking part includes a sliding rod, a fixed seat and a rotating seat;

[0011] The sliding rod has opposite first and second ends, the compression spring is sleeved on the first end and abuts against the end of the sliding rod;

[0012] The sliding rod passes through the display device and the compression spring, and the end of the sliding rod contacts and abuts against the compression spring;

[0013] The fixed seat is provided with an annular hole and a bearing. A first rotating shaft is provided on the annular hole, and a second rotating shaft is provided on the bearing. The sliding rod is rotatably connected to the rotating seat through the first rotating shaft; the second rotating shaft is connected to the rotating seat.

[0014] Both ends of the tension spring are respectively connected to the sliding rod and the fixed seat.

[0015] The annular hole has opposite first and second ends. The first end is close to the panel, and the second end is far from the panel.

[0016] Wherein, when the first rotating shaft is located at the first end of the annular hole, the hatch is in an open state, and when the first rotating shaft is located at the second end of the annular hole, the hatch is in a closed state.

[0017] In a possible implementation of the above first aspect, a sliding groove is provided at one end of the hatch facing the rotating seat, and the sliding groove is arranged along the width direction of the hatch.

[0018] A pin is provided at one end of the rotating seat away from the fixed seat, and the pin is received in the sliding groove; the second rotating shaft is located between the first rotating shaft and the pin.

[0019] In a possible implementation of the above first aspect, a plurality of first mounting holes are provided on the fixed seat at intervals, and a plurality of the first mounting holes are all arranged close to the second end of the annular hole.

[0020] A plurality of second mounting holes are provided on the sliding rod at intervals along the axial direction of the sliding rod, and both ends of the tension spring are respectively mounted in the first mounting hole and the second mounting hole.

[0021] In a possible implementation of the above first aspect, one end of the fixed seat facing the panel extends outward to form a mounting seat, and the mounting seat is fixedly connected to the panel by bolts.

[0022] In a possible implementation of the above first aspect, a mounting pin is provided on one side wall of the hatch, and a positioning column is inserted through the mounting pin, and the positioning column is connected to the panel.

[0023] In a possible implementation of the above first aspect, a control board is further provided on the panel, and a button is provided on the control board.

[0024] In a possible implementation of the above first aspect, two symmetrically arranged infrared pair switches are further included. The infrared pair switches are located at both ends of the hatch and are connected to the panel.

[0025] In a second aspect of the present utility model, a lifting screen is provided, which includes a box body, the display device, a lifting mechanism, and any one of the above-mentioned linkage hatch structures.

[0026] The technical solution provided by the present utility model may include the following beneficial effects:

[0027] The linkage hatch structure provided by the present utility model includes a panel, a hatch, and a transmission mechanism. Among them, when the display device abuts against the compression spring, the locking portion locks the hatch in the closed state. When the display device disengages from the compression spring, the locking portion locks the hatch in the open state, so that the display device can be exposed from the inlet and outlet to realize playback. By setting a tension spring and a compression spring, and through the abutment or disengagement between the display device and the compression spring, the opening and closing of the hatch can be realized without the need for external force, which has the characteristics of simple structure, convenience and quickness. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] By describing the exemplary embodiments of the present utility model in more detail in conjunction with the drawings, the above-mentioned and other objects, features, and advantages of the present utility model will become more obvious. Among them, in the exemplary embodiments of the present utility model, the same reference numerals generally represent the same components.

[0029] Figure 1 It is a schematic diagram of the overall structure of the lifting screen shown in the embodiment of the present utility model;

[0030] Figure 2 It is a schematic diagram of the state of the lifting screen in use shown in the embodiment of the present utility model;

[0031] Figure 3 It is a schematic diagram of the structure of the linkage hatch structure shown in the embodiment of the present utility model;

[0032] Figure 4 It is another schematic diagram of the structure of the linkage hatch structure shown in the embodiment of the present utility model;

[0033] Figure 5 It is a schematic diagram of the structure of the display device shown in the embodiment of the present utility model;

[0034] Figure 6 It is an exploded schematic diagram of the linkage hatch structure shown in the embodiment of the present utility model;

[0035] Figure 7 It is a schematic diagram of the structure of the fixed seat shown in the embodiment of the present utility model;

[0036] Figure 8 It is a schematic diagram of the structure of the hatch shown in the embodiment of the present utility model;

[0037] Figure 9It is a schematic structural diagram of the rotating base shown in the embodiments of the present utility model. Brief Description of the Drawings:

[0039] 1. Panel; 10. Inlet and outlet; 11. Control board; 12. Button; 13. Infrared pair emission switch;

[0040] 2. Hatch door; 20. Slide groove; 21. Mounting pin; 22. Positioning post;

[0041] 3. Transmission mechanism; 31. Compression spring; 32. Tension spring; 33. Locking part; 330. Slide rod; 3300. Second mounting hole; 331. Fixed seat; 3310. Annular hole; 3311. First mounting hole; 3311. Mounting seat; 332. Rotating base; 3320. Pin; 333. Bearing; 334. First rotating shaft; 335. Second rotating shaft;

[0042] 100. Display device; 101. Slide plate; 200. Box body; 300. Lifting mechanism. Detailed Embodiments

[0043] The preferred embodiments of the present utility model will be described in more detail below with reference to the drawings. Although the preferred embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present utility model more thorough and complete, and to fully convey the scope of the present utility model to those skilled in the art.

[0044] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.

[0045] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0046] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0047] In view of the above problems, the present utility model provides a linkage hatch structure, which can realize the opening and closing of the hatch 2 through the combined operation of a compression spring 31 and a tension spring 32, and has the characteristics of simple structure, convenience and quickness.

[0048] The technical solutions of the embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0049] Figure 1 It is a schematic diagram of the overall structure of the lifting screen shown in the embodiment of the present utility model;

[0050] Figure 2 It is a schematic diagram of the state of the lifting screen in use shown in the embodiment of the present utility model;

[0051] Figure 3 It is a schematic diagram of the structure of the linkage hatch structure shown in the embodiment of the present utility model;

[0052] Figure 4 It is another schematic diagram of the structure of the linkage hatch structure shown in the embodiment of the present utility model.

[0053] Please refer to Figures 1 to 4 A linkage hatch structure provided by the embodiment of the present utility model includes a panel 1, which has an inlet / outlet 10 for the lifting of the display device 100 to pass through;

[0054] A hatch 2 is rotatably arranged on the panel 1, and the hatch 2 has an open state of opening the inlet / outlet 10 and a closed state of closing the inlet / outlet 10;

[0055] A transmission mechanism 3 includes a compression spring 31, a tension spring 32 and a locking part 33. Among them, when the display device 100 abuts against the compression spring 31, the locking part 33 locks the hatch 2 in the closed state through the compression spring 31;

[0056] When the display device 100 is separated from the compression spring 31, the locking part 33 locks the hatch 2 in the open state through the tension spring 32.

[0057] In the prior art, the opening of the hatch 2 of the lifting screen is achieved by the display device 100 abutting against the hatch 2, causing the hatch 2 to rotate relatively under force to open the inlet / outlet 10, and then enabling the display device 100 to be exposed from the inlet / outlet 10 to achieve playback. When the display device 100 is retracted into the lifting screen, the closing of the hatch 2 is achieved by the counterweight. However, this implementation method is likely to damage the display device 100 or the hatch 2, reducing the user experience. In view of this, the inventor of the present utility model realizes the opening and closing of the hatch 2 by using the display device 100, the compression spring 31, the tension spring 32, and the locking part 33. Specifically, when the display device 100 abuts against the compression spring 31, the compression spring 31 gives a reverse acting force to the locking part 33, enabling the locking part 33 to lock the hatch 2 in the closed state. At this time, the state of the lifting screen is as Figure 1 shown, and the state of the linkage hatch structure is as Figure 3 shown. When the display device 100 disengages from the compression spring 31, there is no force feedback between the compression spring 31 and the locking part 33. At this time, the tension spring 32 gives a force opposite to that of the compression spring 31 to the locking part 33, enabling the locking part 33 to lock the hatch 2 in the open state. At this time, the state of the lifting screen is as Figure 2 shown, and the state of the hatch 2 structure during linkage is as Figure 4 shown.

[0058] Installing the linkage hatch structure provided by the present utility model in the lifting screen, during the lifting process of the display device 100, it can contact the compression spring 31. Both the compression spring 31 and the tension spring 32 are connected to the locking part 33. By respectively providing two opposite acting forces to the locking part 33, the hatch 2 is locked in the open state or the closed state by this acting force, with a reasonable structural layout, enabling the opening and closing of the hatch 2 to be realized under the lifting of the display device 100, which is convenient and fast.

[0059] In a specific embodiment, the locking part 33 of the above-mentioned linkage hatch structure includes a slide rod 330, a fixed seat 331, and a rotating seat 332;

[0060] The slide rod 330 has opposite first and second ends. The compression spring 31 is sleeved on the first end and abuts against the end of the slide rod 330;

[0061] The slide rod 330 passes through the slide plate 101 of the display device 100 and the compression spring 31, and the end of the slide rod 330 contacts and abuts against the compression spring 31;

[0062] The fixed seat 331 is provided with an annular hole 3310 and a bearing 333. A first rotating shaft 334 is provided on the annular hole 3310, and a second rotating shaft 335 is provided on the bearing 333. The slide bar 330 is rotatably connected to the rotating seat 332 through the first rotating shaft 334; the second rotating shaft 335 is connected to the rotating seat 332;

[0063] Both ends of the tension spring 32 are respectively connected to the slide bar 330 and the fixed seat 331;

[0064] The annular hole 3310 has an opposite first end and second end. The first end is close to the panel 1, and the second end is far from the panel 1;

[0065] Wherein, when the first rotating shaft 334 is located at the first end of the annular hole 3310, the hatch 2 is in an open state, and when the first rotating shaft 334 is located at the second end of the annular hole 3310, the hatch 2 is in a closed state.

[0066] During specific implementation, please refer to Figures 5 to 7 , the slide plate 101 in the display device 100 is sleeved on the slide bar 330 and is located between the compression spring 31 and the tension spring 32. When the lifting screen is in a closed state, the display device 100 squeezes the compression spring 31 by its own gravity, and the slide bar 330 receives a continuous downward acting force. Under the action of this acting force, the tension spring 32 does not work, and when this acting force is greater than the pulling force of the tension spring 32, the slide bar 330 is located at the second end of the annular hole 3310, that is, the hatch 2 is closed. After the user activates the lifting screen, the display device 100 moves upward under the drive of the lifting mechanism 300. After the display device 100 disengages from the compression spring 31, the downward acting force on the slide bar disappears, and the tension spring 32 can pull up the slide bar 330 through its own elastic force, moving it from the second end of the annular hole 3310 to the first end, opening the hatch 2.

[0067] In a preferred embodiment, the material of the slide bar 330 can be wood, plastic or metal. In this embodiment, it is only necessary to ensure that the pulling force of the tension spring 32 is greater than the gravity of the slide plate 101. In a more preferred embodiment, the material of the slide bar 330 is selected as wood or plastic. Wood and plastic are light in weight and have moderate strength, which can reduce the requirement for the elastic performance of the tension spring 32. There is no need to use a tension spring 32 with too large a pulling force, which can avoid excessive impact force between the tension spring 32 and the panel 1 when closing the hatch 2, damaging the hatch 2 or the panel 1.

[0068] It should be noted that the slide plate 101 of the display device 100 can also be arranged on the outer peripheral surface of the slide bar 330, that is, the slide plate 101 does not slide with the slide bar 330. Specifically, it is only necessary to ensure that the slide plate 101 can be in contact with the compression spring 31. When the display device 100 is descending and stationary, it can abut against the compression spring 31, so that the compression spring 31 can be compressed, so that the downward force on the slide bar 330 is greater than the tension of the tension spring, thereby moving the slide plate 101 downward to close the door 2. Therefore, Figures 1 to 4 The shown skateboard 101 should not be understood as the only implementation form of the embodiment of the present application.

[0069] In a feasible solution, the compression spring 31 can be replaced by a spring sheet. Specifically, the spring sheet is connected to the slide rod 330, and one end of the spring sheet is facing the display device 100 and is arranged opposite to the display device 100. When the display device 100 descends and hits the spring sheet, the spring sheet gives the slide rod 330 a downward force. When the downward force on the slide rod 330 is greater than the tension of the tension spring 32, the locking portion 33 is able to lock the cabin door 2 in a closed state.

[0070] In a specific embodiment, see Figure 8 and Figure 9 The door 2 of the linkage door structure is provided with a slide groove 20 at one end facing the rotating seat 332, and the slide groove 20 is arranged along the width direction of the door 2;

[0071] A pin 3320 is disposed at one end of the rotating seat 332 away from the fixed seat 331 . The pin 3320 is received in the sliding groove 20 . The second rotating shaft 335 is located between the first rotating shaft 334 and the pin 3320 .

[0072] In a specific embodiment, see Figure 7 , and combined with Figure 3 and Figure 4 The fixing seat 331 of the linkage door structure is provided with a plurality of first mounting holes 3311 arranged at intervals, and the plurality of first mounting holes 3311 are all arranged close to the second end of the annular hole 3310;

[0073] The slide bar 330 is provided with a plurality of second mounting holes 3300 spaced apart along the axial direction of the slide bar 330 , and two ends of the tension spring 32 are respectively mounted on the first mounting hole 3311 and the second mounting hole 3300 .

[0074] A plurality of first mounting holes 3311 are provided at intervals on the fixing seat 331 and a plurality of second mounting holes 3300 are provided on the sliding rod 330 , which can be adapted to tension springs 32 of various sizes and specifications, making it more applicable.

[0075] It should be noted that the distances between the first mounting holes 3311 arranged at intervals and the distances between the second mounting holes 3300 arranged at intervals can be set to be equal or unequal.

[0076] In this embodiment, the materials of the fixed seat 331 and the rotating seat 332 can both be plastic materials or metal materials. When using plastic materials, engineering plastics such as polycarbonate, polyamide, polyoxymethylene, polyphenylene ether, and polyester can be selected. When using metal materials, materials such as stainless steel, aluminum-magnesium alloy, and die-cast aluminum can be selected.

[0077] In a specific embodiment, please refer to Figure 7 One end of the fixed seat 331 of the above-mentioned linkage hatch structure facing the panel 1 extends outward to form a mounting seat 3311, and the mounting seat 3311 is fixedly connected to the panel 1 through bolts.

[0078] In a specific embodiment, a mounting pin 21 is provided on one side wall of the hatch 2 of the above-mentioned linkage hatch structure. A positioning column 22 is inserted through the mounting pin 21, and the positioning column 22 is connected to the panel 1.

[0079] In a specific embodiment, a control board 11 is further provided on the panel 1 of the above-mentioned linkage hatch structure, and a key 12 is provided on the control board 11.

[0080] In a specific embodiment, the above-mentioned linkage hatch structure further includes two symmetrically arranged infrared pair switches 13. The infrared pair switches 13 are located at both ends of the hatch 2 and are connected to the panel 1.

[0081] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other.

[0082] Based on the linkage hatch structure provided in the above embodiments, the present invention further provides a lifting screen. The lifting screen includes a box body 200, a display device 100, a lifting mechanism 300, and any one of the above-mentioned linkage hatch structures located inside the box body 200. Since the lifting screen adopts the linkage hatch structure in the above embodiments, the beneficial effects of the lifting screen can be referred to the above embodiments.

[0083] The embodiments of the present utility model have been described above. The above description is exemplary and not exhaustive, and is also not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technologies in the market, or to enable other ordinary technical personnel in the art to understand the embodiments disclosed herein.

Claims

1. A linkage door structure, characterized in that: include: A panel having an inlet and outlet for the display device to be raised and lowered; A door is rotatably disposed on the panel, and the door has an open state for opening the inlet and outlet and a closed state for closing the inlet and outlet; The transmission mechanism comprises a compression spring, a tension spring and a locking portion, wherein when the display device abuts against the compression spring, the locking portion locks the door in a closed state through the compression spring; When the display device is separated from the compression spring, the locking portion locks the door in an open state through the tension spring.

2. The linkage door structure according to claim 1, characterized in that: The locking part includes a sliding rod, a fixed seat and a rotating seat; The slide bar has a first end and a second end opposite to each other, and the compression spring is sleeved on the first end and abuts against the end of the slide bar; The slide bar passes through the slide plate of the display device and the compression spring, and the end of the slide bar contacts and abuts against the compression spring; The fixing seat is provided with an annular hole and a bearing, the annular hole is provided with a first rotating shaft, the bearing is provided with a second rotating shaft, the sliding rod is rotatably connected to the rotating seat via the first rotating shaft; the second rotating shaft is connected to the rotating seat; The two ends of the tension spring are respectively connected to the slide rod and the fixing seat; The annular hole has a first end and a second end opposite to each other, the first end is close to the panel, and the second end is far from the panel; Wherein, when the first rotating shaft is located at the first end of the annular hole, the hatch is in an open state, and when the first rotating shaft is located at the second end of the annular hole, the hatch is in a closed state.

3. The linkage door structure according to claim 2, characterized in that: A slide groove is provided at one end of the door facing the rotating seat, and the slide groove is arranged along the width direction of the door; A pin is disposed at one end of the rotating seat away from the fixed seat, and the pin is received in the slide slot; the second rotating shaft is located between the first rotating shaft and the pin.

4. The linkage door structure according to claim 3, characterized in that: The fixing seat is provided with a plurality of first mounting holes arranged at intervals, and the plurality of first mounting holes are all arranged close to the second end of the annular hole; The slide bar is provided with a plurality of second mounting holes spaced apart along the axial direction of the slide bar, and the two ends of the tension spring are respectively mounted on the first mounting hole and the second mounting hole.

5. The linkage door structure according to claim 2, characterized in that: The fixing seat extends outwardly toward one end of the panel to form a mounting seat, and the mounting seat is connected and fixed to the panel by bolts.

6. The linkage door structure according to claim 5, characterized in that: A mounting pin is provided on one side wall of the hatch, a positioning column is passed through the mounting pin, and the positioning column is connected to the panel.

7. The linkage door structure according to claim 1, characterized in that: The panel is also provided with a control panel, and the control panel is provided with buttons.

8. The linkage door structure according to claim 1, characterized in that: It also includes two symmetrically arranged infrared counter-radiation switches, which are located at two ends of the cabin door and connected to the panel.

9. A lifting screen, characterized in that: It comprises a box body, the display device, a lifting mechanism and the linkage door structure as described in any one of claims 1 to 8.

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