Folding air purification device and storage cabinet for mahjong table

Abstract

The utility model discloses a folding air purification device for a mahjong table and a storage cabinet, and relates to the field of air purification equipment. Wherein the fixing mechanism is provided with a mounting part used for being connected with a cabinet body; the folding mechanism has a folding state and an unfolding state, and the folding mechanism is arranged on the fixing mechanism and can be folded or unfolded relative to the fixing mechanism; the driving mechanism is configured to be capable of driving the folding mechanism to move, so that the folding mechanism is switched between a folding state and an unfolding state; and the air purifier is arranged on the folding mechanism. According to the folding type air purification device for the mahjong table, when the mahjong table is used, the folding mechanism is switched from the folding state to the unfolding state, the air purifier extends out of the cabinet body, and air purification treatment is conducted on the space above the mahjong table; when the mahjong table is not used, the folding mechanism is switched from the unfolded state to the folded state, the air purifier and the folding mechanism can be stored in the cabinet body, and the indoor occupied space is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to air purification equipment technical field, especially a kind of folding air purification device and storage cabinet for mahjong table. BACKGROUND

[0002] Mahjong as a traditional culture and entertainment way, in China, has profound mass foundation and extensive influence. In the process of playing mahjong, due to personnel long-term gathering, especially when there is personnel smoking, it is inevitable to cause pollution to ambient air, which invisibly affects human health. For this reason, mahjong table smoke machine lamp is configured in mahjong room, can adsorb and purify flue gas, and also can provide lighting function.

[0003] Traditional mahjong table smoke machine lamp is generally fixedly installed on the ceiling in mahjong room, is not convenient to store, affects the overall appearance and neatness of space, and often needs cleaning, occupies people's living and working time, and mahjong room needs a separate room to be arranged, so that indoor space is occupied, leading to that indoor space resource becomes nervous. UTILITY MODEL CONTENTS

[0004] The utility model aims at at least solving one of the technical problems existing in prior art. For this reason, the utility model provides a folding air purification device and storage cabinet for mahjong table, which can realize folding storage, to improve the utilization rate of indoor space, and can improve the appearance and neatness of indoor space.

[0005] The technical scheme adopted to solve the above technical problems is as follows:

[0006] In the first aspect, the utility model discloses a folding air purification device for mahjong table, which comprises:

[0007] A fixing mechanism has a mounting part for connecting with the cabinet body;

[0008] A folding mechanism has a folding state and an unfolded state, and the folding mechanism is arranged on the fixing mechanism and can be folded or unfolded relative to the fixing mechanism;

[0009] A driving mechanism is configured to drive the folding mechanism to move, so that the folding mechanism switches between the folding state and the unfolded state;

[0010] An air purifier is arranged on the folding mechanism.

[0011] The folding air purification device for the mahjong table has at least the following beneficial effects: when the mahjong table is used, the folding mechanism is switched from the folded state to the unfolded state through the operation of the driving mechanism, the air purifier can be extended out of the cabinet body, the air purification treatment is performed on the space above the mahjong table, and a good mahjong entertainment environment is provided; when the mahjong table is not used, the folding mechanism is switched from the unfolded state to the folded state through the reverse operation of the driving mechanism, the air purifier and the folding mechanism can be accommodated in the cabinet body, the indoor space becomes sufficient, the indoor space becomes more beautiful and more tidy, the cleaning frequency of the air purifier is reduced, the living and work time of people is avoided from being wasted, and the modern life concept of light housework is realized.

[0012] As a further improvement of the above technical solution, the folding mechanism comprises:

[0013] The first support is hingedly connected to the fixed mechanism at one end;

[0014] The three-link structure is hingedly connected to the other end of the first support at one end;

[0015] The second support is hingedly connected to the other end of the three-link structure at one end, and is provided with the air purifier at the other end;

[0016] The pull rod is located on the lower side of the first support, and one end of the pull rod is hingedly connected to the fixed mechanism;

[0017] The trigger link is V-shaped, and has a first connecting end and oppositely arranged second and third connecting ends, the first connecting end is hingedly connected to the first support, the second connecting end is hingedly connected to the other end of the pull rod, so that the hingedly connected end of the first support and the fixed mechanism, the first connecting end, the second connecting end and the hingedly connected end of the pull rod and the fixed mechanism are sequentially connected to form a parallelogram structure, and the third connecting end is hingedly connected to the second support;

[0018] The driving mechanism is configured to drive the first support to rotate around the hingedly connected end of the fixed mechanism and the first support.

[0019] As a further improvement of the above technical solution, the folding mechanism further comprises at least one limiting link, one end of the limiting link is hingedly connected to the first support, the other end of the limiting link is hingedly connected to the second support, the hingedly connected end between the limiting link and the first support is coaxially arranged with the first connecting end, and the hingedly connected end between the limiting link and the second support is coaxially arranged with the third connecting end.

[0020] As a further improvement of the above technical solution, the folding mechanism further comprises a transmission member, one end of the transmission member is hingedly connected to the first support, and the output end of the driving mechanism is movably connected to the other end of the transmission member to drive the other end of the transmission member to move in the up-down direction.

[0021] As a further improvement of the above technical solution, the driving mechanism comprises a screw rod, a nut seat and a rotary driving member, the central axis of the screw rod extends in the up-down direction, the screw rod is rotationally connected to the fixing mechanism, the nut seat is threadedly connected to the screw rod, the nut seat is slidably connected to the fixing mechanism in the up-down direction, the nut seat is hingedly connected to the other end of the transmission member, and the output end of the rotary driving member is connected to the screw rod to drive the screw rod to rotate about its central axis.

[0022] As a further improvement of the above technical solution, the folding air purification device for mahjong table further comprises a controller, a first limit sensor and a second limit sensor, the first limit sensor is configured to detect that the nut seat moves up to the highest set position, the second limit sensor is configured to detect that the nut seat moves down to the lowest set position, the controller is electrically connected to the first limit sensor, the second limit sensor and the rotary driving member respectively, and the controller is configured to control the rotary driving member to stop running according to the signal of the first limit sensor or the second limit sensor.

[0023] As a further improvement of the above technical solution, the fixing mechanism comprises a housing, the housing is provided with a receiving cavity and a long slot, the long slot extends in the up-down direction and communicates with the receiving cavity, the driving mechanism is arranged in the receiving cavity, the nut seat is provided with a connecting member, the connecting member is arranged in the long slot and is hingedly connected to the transmission member.

[0024] As a further improvement of the above technical solution, the air purifier is provided with a lamp.

[0025] In a second aspect, the utility model discloses a storage cabinet, which comprises:

[0026] A cabinet body having a storage cavity;

[0027] A cabinet door movably connected to the cabinet body to open and close the opening of the storage cavity;

[0028] The folding air purification device for mahjong table is arranged in the storage cavity and fixedly connected to the cabinet body, and is configured to be folded or unfolded to enter or exit the storage cavity.

[0029] The storage cabinet provided by the utility model has at least the following beneficial effects: when mahjong entertainment is not needed, the folding air purification device for the mahjong table is folded and stored in the storage cabinet, the indoor space can be saved, the overall appearance and tidiness of the indoor space are improved, and the cleaning time of the folding air purification device for the mahjong table is saved; when mahjong entertainment is needed, the storage cabinet is opened, the folding air purification device for the mahjong table is unfolded, the air purifier can be extended out of the storage cabinet, and air purification is performed around the mahjong table, so that a good entertainment environment is created.

[0030] As a further improvement of the above technical solution, the storage cavity comprises a first interval and a second interval, the first interval is configured to accommodate the folding air purification device for the mahjong table, and the second interval is configured to accommodate the folding mahjong table.

[0031] Other features and advantages of the utility model will be set forth in the subsequent description, and, in part, become apparent from the description, or be learned from the practice of the utility model. The purpose and other advantages of the utility model can be realized and obtained through the structure specially pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a three-dimensional structure schematic diagram of the folding air purification device for the mahjong table in the unfolded state according to the utility model embodiment;

[0033] Figure 2 It is a three-dimensional structure schematic diagram of the folding air purification device for the mahjong table in the folded state according to the utility model embodiment;

[0034] Figure 3 It is an explosion view of the folding air purification device for the mahjong table according to the utility model embodiment;

[0035] Figure 4 It is a three-dimensional structure schematic diagram of the folding air purification device for the mahjong table in the unfolded state in the storage cabinet according to the utility model embodiment;

[0036] Figure 5 It is a structure schematic diagram of the folding air purification device for the mahjong table in the folded state in the storage cabinet according to the utility model embodiment.

[0037] 10, folding air purification device for mahjong table; 100, fixing mechanism; 110, shell; 120, guide pipe; 210, first support; 211, first cross rod; 212, second cross rod; 221, first connecting rod; 222, second connecting rod; 223, third connecting rod; 230, second support; 231, third cross rod; 240, pull rod; 250, trigger connecting rod; 260, limiting connecting rod; 270, transmission part; 271, fourth cross rod; 272, fifth cross rod; 310, screw rod; 320, nut seat; 321, connecting piece; 330, rotary driving part; 340, first limiting sensor; 350, second limiting sensor; 400, air purifier; 410, lamp; 50, storage cabinet; 510, cabinet body; 520, cabinet door; 530, storage cavity; 540, folding mahjong table. DETAILED DESCRIPTION

[0038] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used merely for the purpose of explaining the present application, and should not be construed as limiting the present application.

[0039] In the description of the present application, it should be understood that the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0040] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] The following refers to Figures 1 to 5 The folding air purification device for mahjong table and the storage cabinet provided according to the embodiments of the present application are described.

[0042] As Figures 1 to 5 shown, the present application provides a folding air purification device 10 for mahjong table, which comprises a fixing mechanism 100, a folding mechanism, a driving mechanism and an air purifier 400.

[0043] The fixing mechanism 100 has a mounting part, which is fixedly connected to the cabinet 510. When both the fixing mechanism 100 and the cabinet 510 are made of stainless steel, the connection between the mounting part and the cabinet 510 can be made by welding. In this embodiment, the connection between the fixing mechanism 100 and the cabinet 510 is made by screw connection.

[0044] The folding mechanism has a folded state and an unfolded state. The folding mechanism is mounted on the fixed mechanism 100 and connected to the fixed mechanism 100, so that the folding mechanism can receive support from the fixed mechanism 100. Moreover, the folding mechanism can be folded or unfolded relative to the fixed mechanism 100.

[0045] The drive mechanism is configured to drive the folding mechanism to move. The drive mechanism is mounted on the fixed mechanism 100. The output end of the drive mechanism is connected to the input end of the folding mechanism to drive the folding mechanism to switch between a folded state and an unfolded state, thereby realizing the unfolding and folding of the foldable air purification device 10 for mahjong tables.

[0046] The air purifier 400 is mounted on the folding mechanism. Specifically, the air purifier 400 is positioned at the end of the folding mechanism furthest from the fixing mechanism 100, allowing it to extend outside the cabinet 510 when the folding mechanism is in the unfolded state. When the air purifier 400 is needed to filter and purify the air above the mahjong table, the drive mechanism causes the folding mechanism to unfold, placing the air purifier 400 above the mahjong table and absorbing and purifying smoke. When the game is over and the air purifier 400 is no longer needed, the drive mechanism causes the folding mechanism to fold back from the unfolded state, returning the air purifier 400 to its retracted state. When not in use, the air purifier 400 can be stored inside the cabinet 510, thus reducing its footprint and keeping the room tidy.

[0047] In some embodiments, such as Figures 1 to 3 As shown, the folding mechanism includes a first support 210, a three-bar linkage, a second support 230, a pull rod 240, and a trigger linkage 250.

[0048] One end of the first support 210 is hingedly connected to the fixing mechanism 100, and the first support 210 can rotate relative to the fixing mechanism 100. In the present embodiment, assuming that the direction in which the air purifier 400 enters and exits the cabinet 510 is the front-rear direction, the hinged axis between the first support 210 and the fixing mechanism 100 extends along the left-right direction. The upper portion of the fixing mechanism 100 is provided with a first through hole, and the first support 210 is provided with a first horizontal rod 211 at one end close to the fixing mechanism 100 when the folding air purification device 10 for mahjong tables is in the unfolded state, the first horizontal rod 211 extends along the left-right direction, and the first horizontal rod 211 passes through the first through hole, so that the first support 210 can rotate relative to the fixing mechanism 100 about the first horizontal rod 211.

[0049] One end of the three-link structure is hingedly connected to the other end of the first support 210, the other end of the three-link structure is hingedly connected to one end of the second support 230, and the other end of the second support 230 is provided with the air purifier 400.

[0050] Specifically, the three-link structure includes a first link 221, a second link 222, and a third link 223. When the folding air purification device 10 for mahjong tables is in the unfolded state, one end of the first link 221 is hingedly connected to the other end of the first support 210 away from the fixing mechanism 100, the other end of the first link 221 is hingedly connected to one end of the second link 222, the other end of the second link 222 is hingedly connected to one end of the third link 223, the other end of the third link 223 is hingedly connected to one end of the second support 230 close to the fixing mechanism 100, and the air purifier 400 is located at the other end of the second support 230 away from the fixing mechanism 100.

[0051] In the present embodiment, when the folding air purification device 10 for mahjong tables is in the unfolded state, the other end of the first support 210 away from the fixing mechanism 100 is provided with a second through hole and a second horizontal rod 212, the left and right ends of the second horizontal rod 212 are simultaneously provided with the first link 221, i.e., the number of first links 221 is two, the first link 221 is provided with a third through hole, and the second horizontal rod 212 simultaneously passes through the second through hole and the third through hole, so that the first link 221 can rotate about the second horizontal rod 212.

[0052] In the present embodiment, two three-link structures are provided, and are symmetrically arranged at the left and right ends of the second horizontal rod 212, i.e., the number of the first link 221, the second link 222, and the third link 223 is two, and are respectively arranged at the left and right ends of the second horizontal rod 212.

[0053] It can be understood that in other embodiments, the number of three-link structures can be one or more than two. When the number of three-link structures is one, the three-link structure can be arranged at the middle of the second cross bar 212. When the number of three-link structures is two or more, the plurality of three-link structures can be arranged at intervals along the extension direction of the second cross bar 212. The arrangement of the three-link structure is determined by the specific folding mechanism.

[0054] In the embodiment, when the folding air purification device 10 for mahjong table is in the unfolded state, the second support 230 is provided with a fourth through hole and a third cross bar 231 on one end close to the fixed mechanism 100. The third cross bar 231 extends in the left-right direction, and the other end of the third connecting rod 223 is provided with a fifth through hole. The third cross bar 231 passes through the fourth through hole and the fifth through hole, so that the third connecting rod 223 is hinged to the second support 230.

[0055] The pull rod 240 is arranged on the lower side of the first support 210. One end of the pull rod 240 is hinged to the fixed mechanism 100.

[0056] The trigger connecting rod 250 is shaped like a V. The trigger connecting rod 250 has a first connecting end and oppositely arranged second and third connecting ends, i.e., the second and third connecting ends are symmetrically arranged about the first connecting end. The first connecting end is hinged to the second cross bar 212 of the first support 210, and the second connecting end is hinged to the other end of the pull rod 240, so that the hinged end of the first support 210 and the fixed mechanism 100, the first connecting end, the second connecting end of the pull rod 240 and the hinged end of the fixed mechanism 100 are sequentially connected to form a parallelogram structure, and the third connecting end is hinged to the third cross bar 231 of the second support 230.

[0057] The number of trigger connecting rods 250 is not limited to one. In the embodiment, trigger connecting rods 250 are arranged on both sides of the pull rod 240.

[0058] The driving mechanism is configured to drive the first support 210 to rotate about the hinged end of the fixed mechanism 100 and the first support 210. It can be understood that the driving mechanism can be a motor, a rotary electric cylinder, a rotary air cylinder, or other rotary driving devices, and is connected to the hinged end of the first support 210 and the fixed mechanism 100 to drive the first support 210 to swing upward or downward.

[0059] According to the characteristics of parallelogram deformability (i.e. instability), when the driving mechanism applies a driving force to the first support 210, the first support 210 can rotate relative to the fixed mechanism 100, and at the same time, the pull rod 240 can rotate relative to the fixed mechanism 100 under the driving of the trigger link 250; at this time, since the second connecting end and the third connecting end of the trigger link 250 rotate around the first connecting end, the second support 230 is simultaneously subjected to the driving action of the trigger link 250 and the limiting action of the three-link structure, so as to enable the second support 230 to swing upward or downward relative to the first support 210 around the third connecting end of the three-link structure.

[0060] As shown in Figure 1 and Figure 2 , when the first support 210 swings upward (assuming counterclockwise rotation), the second support 230 will swing downward (i.e. clockwise rotation) relative to the first support 210 around the third connecting end of the three-link structure; when the first support 210 swings downward (i.e. clockwise rotation), the second support 230 will swing upward (i.e. counterclockwise rotation) relative to the first support 210 around the third connecting end of the three-link structure. It can be seen that the rotation directions of the first support 210 and the second support 230 are opposite.

[0061] In some embodiments, the folding mechanism further comprises at least one limiting link 260, one end of the limiting link 260 being hingedly connected to the first support 210, the other end of the limiting link 260 being hingedly connected to the second support 230, the hingedly connected end between the limiting link 260 and the first support 210 being coaxially arranged with the first connecting end, and the hingedly connected end between the limiting link 260 and the second support 230 being coaxially arranged with the third connecting end.

[0062] In this embodiment, the number of limiting links 260 is two, one end of each of the two limiting links 260 is provided with a first hinged hole through which the second cross rod 212 passes and is connected, so that the limiting link 260 can rotate around the second cross rod 212, one of the two limiting links 260 is arranged at one end of the second cross rod 212, and the other limiting link 260 is arranged at the other end of the second cross rod 212, the other end of each of the two limiting links 260 is provided with a second hinged hole through which the third cross rod 231 passes and is connected, so that the limiting link 260 can rotate around the third cross rod 231.

[0063] By arranging the limiting link 260, the connection effect and structural stability between the first support 210 and the second support 230 are increased, the force acting on the trigger link 250 is reduced, it is ensured that the trigger link 250 is not easily damaged and deformed, and it is also ensured that the second support 230 can stably rotate relative to the first support 210.

[0064] In some embodiments, the folding mechanism further comprises a transmission member 270, one end of the transmission member 270 is hinged to the first support 210, and the output end of the driving mechanism is movably connected to the other end of the transmission member 270 to drive the other end of the transmission member 270 to move in the up-down direction. In this way, when the driving mechanism is operated, the driving mechanism can drive the end of the transmission member 270 connected to the output end of the driving mechanism to move upward or downward, at this time, the transmission member 270 will exert a transmission action on the first support 210, so that the first support 210 can be rotated about the first horizontal rod 211 under the driving action of the transmission member 270, thereby achieving the unfolding or folding of the folding air purification device 10 for mahjong table.

[0065] In the present embodiment, the opposite ends of the transmission member 270 are respectively provided with a fourth horizontal rod 271 and a fifth horizontal rod 272, the fourth horizontal rod 271 and the fifth horizontal rod 272 both extend in the left-right direction, and the middle part of the first support 210 is provided with two coaxial sixth through holes, the axes of the two sixth through holes are parallel to the first horizontal rod 211, the fourth horizontal rod 271 passes through the two sixth through holes, and the fifth horizontal rod 272 is connected to the output end of the driving mechanism.

[0066] When the output end of the driving mechanism moves downward, the output end of the driving mechanism can drive the fifth horizontal rod 272 to move downward, thereby driving the first support 210 to swing downward about the first horizontal rod 211, promoting the folding air purification device 10 for mahjong table to change from the unfolded state to the folded state. When the output end of the driving mechanism moves upward, the output end of the driving mechanism can drive the fifth horizontal rod 272 to move upward, thereby driving the first support 210 to swing upward about the first horizontal rod 211, promoting the folding air purification device 10 for mahjong table to change from the folded state to the unfolded state.

[0067] In other embodiments, the folding mechanism can only contain the first support 210, the limiting connecting rod 260, the first connecting rod 221, the second connecting rod 222, the third connecting rod 223 and the second support 230, at this time, the output end of the driving mechanism is connected to the first support 210 to drive the first support 210 to rotate about the first horizontal rod 211 relative to the fixing mechanism 100, so that the folding air purification device 10 for mahjong table can be unfolded or folded. In this case, the driving mechanism can be a linear driving device such as an electric cylinder or a pneumatic cylinder, one end of the driving mechanism is hinged to the fixing mechanism 100, and the other end is hinged to the first support 210; the driving mechanism can also be a motor, which is connected to the hinged ends between the first support 210 and the fixing mechanism 100 through a transmission structure such as a gear transmission structure or a speed reducer.

[0068] It can be understood that the shapes of the first support 210, the second support 230, the transmission member 270 and the pull rod 240 can be set according to actual needs, which are not specifically limited here.

[0069] In some embodiments, the driving mechanism comprises a screw rod 310, a nut seat 320 and a rotary driving member 330, the central axis of the screw rod 310 extends in the up-down direction, the screw rod 310 is rotationally connected to the fixing mechanism 100, the nut seat 320 is threadedly connected with the screw rod 310, the nut seat 320 is slidingly connected with the fixing mechanism 100 in the up-down direction, the nut seat 320 is hingedly connected with the other end of the transmission member 270, and the output end of the rotary driving member 330 is connected with the screw rod 310 to drive the screw rod 310 to rotate about its central axis.

[0070] It can be understood that, under the driving of the rotary driving member 330, the screw rod 310 rotates about its central axis, at this time, the nut seat 320 moves upward or downward along the length direction of the screw rod 310 under the driving of the screw rod 310 and the rotation-stopping effect of the fixing mechanism 100, so that the hinged end between the transmission member 270 and the nut seat 320 produces displacement in the up-down direction, thereby causing the first support 210 to rotate about the first cross rod 211 relative to the fixing mechanism 100, and causing the second support 230 to drive the air purifier 400 to perform rotary telescopic movement, so as to realize the unfolding or folding of the folding air purification device 10 for mahjong table.

[0071] It can be understood that, in some embodiments, the rotary driving member 330 can be a driving motor, the output shaft of the driving motor is connected with the input end of the screw rod 310 through a shaft coupling, so that the screw rod 310 rotates about its axis under the driving of the driving motor.

[0072] In some embodiments, the fixing mechanism 100 comprises a housing 110, the housing 110 is provided with a receiving cavity and a long slot, the long slot extends in the up-down direction and communicates with the receiving cavity, the driving mechanism is arranged in the receiving cavity, the nut seat 320 is provided with a connecting member 321, the connecting member 321 passes through the long slot and is hingedly connected with the transmission member 270.

[0073] In the present embodiment, the fixing mechanism 100 further comprises a guide pipe 120, the guide pipe 120 is arranged in the receiving cavity, the rotary driving member 330 is arranged above the guide pipe 120, the screw rod 310 and the nut seat 320 are arranged in the guide pipe 120, the screw rod 310 can be mounted in the guide pipe 120 through a bearing, the guide pipe 120 is provided with a slot hole extending in the up-down direction, the nut seat 320 is connected with the connecting member 321, the connecting member 321 passes through the slot hole of the guide pipe 120 and the long slot of the housing 110 in sequence and is hingedly connected with the lower end of the transmission member 270. The connecting part of the connecting member 321 and the nut seat 320 is provided with a thin-walled part, the thin-walled part and the upper and lower ends of the long slot form a limiting structure to limit the movement range of the nut seat 320 on the screw rod 310, thereby limiting the rotation angle of the folding mechanism, preventing the folding air purification device 10 for mahjong table from being unfolded or folded excessively, and further preventing damage to the folding mechanism and affecting daily use.

[0074] It can be understood that after the folding air purification device 10 for mahjong table is assembled, only the connecting piece 321 is exposed outside, the rotating drive 330, the screw rod 310 and the nut seat 320 are all in the accommodating cavity, and the movement of the screw rod 310 driving the nut seat 320 cannot be seen from the outside, which increases the aesthetic degree. At the same time, it can prevent external dust from entering the screw rod 310 and the nut seat 320, affecting the movement of the driving mechanism, so as to cause the folding air purification device 10 for mahjong table to fold or unfold not smoothly.

[0075] In some embodiments, the folding air purification device 10 for mahjong table is also provided with a controller, a first limit sensor 340 and a second limit sensor 350, the first limit sensor 340 is configured to detect that the nut seat 320 moves to the highest set position, the second limit sensor 350 is configured to detect that the nut seat 320 moves to the lowest set position, the controller is electrically connected with the first limit sensor 340, the second limit sensor 350 and the rotating drive 330 respectively, and the controller is configured to control the rotating drive 330 to stop running according to the signal of the first limit sensor 340 or the second limit sensor 350.

[0076] It can be understood that the first limit sensor 340 and the second limit sensor 350 can be mechanical limit sensors, photoelectric limit sensors, inductive limit sensors and capacitive limit sensors, and the controller can be a PLC chip or a single-chip microcomputer, which is not limited here.

[0077] When the rotating drive 330 drives the screw rod 310 to rotate and makes the nut seat 320 move to the highest set position, the first limit sensor 340 can generate a detection signal and send it to the controller, and the controller sends a control instruction to the rotating drive 330 after receiving the detection signal, so as to stop the rotating drive 330 from working and make the nut seat 320 stop at the highest set position, thereby ensuring that the folding mechanism is completely unfolded.

[0078] When the rotating drive 330 drives the screw rod 310 to rotate reversely and makes the nut seat 320 move to the lowest set position, the second limit sensor 350 can generate a detection signal and send it to the controller, and the controller sends a control instruction to the rotating drive 330 after receiving the detection signal, so as to stop the rotating drive 330 from working and make the nut seat 320 stop at the lowest set position, thereby ensuring that the folding mechanism is completely folded.

[0079] In some embodiments, the air purifier 400 is provided with a lamp 410, when the folding air purification device 10 for mahjong table is used, the air purifier 400 can absorb and purify the odor such as smoke around the mahjong table, at the same time, the lamp 410 provided on the air purifier 400 can illuminate the mahjong table, so that people can increase the concentration and enhance the fun in the bright environment.

[0080] With reference to Figure 4 and Figure 5 The utility model discloses a second aspect embodiment provides a storage cabinet 50, storage cabinet 50 includes cabinet body 510, cabinet door 520 and the folding air purification device 10 for mahjong table of the utility model first aspect embodiment. Cabinet body 510 has the storage cavity 530, and the cabinet door 520 is movably connected with cabinet body 510 to open and close the opening of storage cavity 530, and the folding air purification device 10 for mahjong table is arranged in storage cavity 530 and is fixedly connected with cabinet body 510, and the folding air purification device 10 for mahjong table is configured to be folded or unfolded to enter and exit storage cavity 530.

[0081] It can be understood that the cabinet door 520 can be a sliding door, and a track is arranged between the cabinet door 520 and the cabinet body 510. The cabinet door 520 is pushed and pulled along the track to open and close the opening of the storage cavity 530. Figure 4 As shown in the embodiment, the cabinet door 520 is hingedly connected with the cabinet body 510, and the cabinet door 520 is provided with two.

[0082] In some embodiments, the storage cavity 530 includes a first interval and a second interval. The first interval is configured to accommodate the folding air purification device 10 for mahjong table, and the second interval is configured to accommodate a folding mahjong table 540. The first interval is located above the second interval.

[0083] It can be understood that the folding mahjong table 540 is a prior art, and those skilled in the art should understand its specific structure and working principle, which will not be described in detail here. After the cabinet door 520 is opened, the folding air purification device 10 for mahjong table can be unfolded from the first interval of the storage cavity 530, and at the same time, the folding mahjong table 540 can be removed from the second interval of the storage cavity 530. People can conveniently play mahjong, and the folding air purification device 10 for mahjong table can purify the air above the folding mahjong table 540, and can provide good lighting function for the folding mahjong table 540, increasing the fun.

[0084] After people end mahjong playing, the folding air purifying device 10 for the mahjong table can be folded into the first section of the storage cavity 530 from the external space, and the folding mahjong table 540 is sent into the second section of the storage cavity 530 from the external space after being folded, so that people can conveniently store the air purifier 400 and the folding mahjong table 540, save time, and reduce the occupation of indoor space.

[0085] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0086] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A folding air purification device for a mahjong table, characterized in that, The utility model relates to a foldable air purifier, comprising: a fixing mechanism having a mounting portion for connecting with a cabinet body; a folding mechanism having a folded state and an unfolded state, the folding mechanism being arranged on the fixing mechanism and being foldable or unfoldable relative to the fixing mechanism; a driving mechanism configured to drive the folding mechanism to move so as to switch the folding mechanism between the folded state and the unfolded state; an air purifier arranged on the folding mechanism.

2. The folding air purifying device for mahjong table according to claim 1, wherein, The folding mechanism comprises: a first support having one end hinged to the fixing mechanism; a three-link structure having one end hinged to the other end of the first support; a second support having one end hinged to the other end of the three-link structure and the other end provided with the air purifier; a pull rod located at the lower side of the first support, one end of the pull rod being hinged to the fixing mechanism; a trigger link in a V shape, the trigger link having a first connecting end hinged to the first support and oppositely arranged second and third connecting ends, the second connecting end being hinged to the other end of the pull rod so that the hinged end of the first support to the fixing mechanism, the first connecting end, the second connecting end and the hinged end of the pull rod to the fixing mechanism successively form a parallelogram structure, and the third connecting end being hinged to the second support; wherein the driving mechanism is configured to drive the first support to rotate about the hinged end of the first support to the fixing mechanism.

3. The folding air purifying device for mahjong table according to claim 2, wherein, The folding mechanism further comprises at least one limiting link, one end of the limiting link being hinged to the first support and the other end being hinged to the second support, the hinged end between the limiting link and the first support being coaxially arranged with the first connecting end, and the hinged end between the limiting link and the second support being coaxially arranged with the third connecting end.

4. The folding air purification device for mahjong table according to claim 2 or 3, characterized in that, The folding mechanism further comprises a transmission member, one end of the transmission member being hinged to the first support, and the output end of the driving mechanism being movably connected to the other end of the transmission member so as to drive the other end of the transmission member to move in the up-down direction.

5. The folding air purifying device for mahjong table according to claim 4, wherein, The driving mechanism comprises a screw rod, a nut seat and a rotary driving member, the central axis of the screw rod extending in the up-down direction, the screw rod being rotationally connected to the fixing mechanism, the nut seat being threadedly connected to the screw rod, the nut seat being slidably connected to the fixing mechanism in the up-down direction, the other end of the transmission member being hinged to the nut seat, and the output end of the rotary driving member being connected to the screw rod so as to drive the screw rod to rotate about its central axis.

6. The folding air purifying device for mahjong table according to claim 5, wherein, The utility model further comprises a controller, a first limit sensor and a second limit sensor, the first limit sensor being configured to detect the upward movement of the nut seat to a highest set position, the second limit sensor being configured to detect the downward movement of the nut seat to a lowest set position, the controller being electrically connected to the first limit sensor, the second limit sensor and the rotary driving member respectively, and the controller being configured to control the rotary driving member to stop running according to the signals of the first limit sensor or the second limit sensor.

7. The folding air purifying device for mahjong table according to claim 5, wherein, The fixing mechanism comprises a housing provided with a receiving cavity and a long slot extending in the up-down direction and communicating with the receiving cavity, the driving mechanism is arranged in the receiving cavity, and the nut seat is provided with a connecting piece penetrating through the long slot and hinged with the transmission piece.

8. The folding air purifying device for mahjong table according to claim 1, wherein, The air purifier is provided with a lamp.

9. A storage cabinet, characterized by Comprise: A cabinet body having a receiving cavity; A cabinet door movably connected with the cabinet body to open and close an opening of the receiving cavity; The folding air purification device for mahjong table as claimed in any one of claims 1-8 is arranged in the receiving cavity and fixedly connected with the cabinet body, and is configured to be foldable or unfoldable to enter or exit the receiving cavity.

10. The cabinet of claim 9, wherein, The receiving cavity comprises a first interval configured to accommodate the folding air purification device for mahjong table and a second interval configured to accommodate a folding mahjong table.

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