CN101352288B - Electric up-down kitchen cabinet - Google Patents

Abstract

The invention discloses an electric lifting cupboard which comprises a bottomless cupboard body (1), a cupboard tray (2), a motor (3), a lifting mechanism, an upper limit switch, a lower limit switch and a lifting switch (6); the lifting mechanism comprises a right movable pulley and a left movable pulley, a right static pulley, a left static pulley, a left leather belt (111), a right leather belt (112) and a driving pulley (12) that is arranged in the middle of the top of the bottomless cupboard body (1) and connected with the motor (3), wherein, the right movable pulley and the left movable pulley are respectively arranged at the two sides of the top of the cupboard tray (2); the right static pulley, the left static pulley, the left leather belt (111) and the right leather belt (112) are arranged at the two sides of the top of the bottomless cupboard body (1); one end of the left leather belt (111) and the right leather belt (112) is fixed on the driving pulley (12) at the same time, while the other end thereof respectively passes the right static pulley, the left static pulley, the right movable pulley and the left movable pulley and is fixedly arranged on a left fixing bar and a right fixing bar arranged beside the right static pulley and the left static pulley; the right movable pulley and the left movable pulley are movably matched with the inner wall of the bottomless cupboard body (1). The electric lifting cupboard has the advantages of flexible lifting and no dithering phenomenon happening during the processes of rising and falling.

Description

Electric lifting cabinet

Technical field:

The invention relates to a novel appliance used in a family kitchen, in particular to an electric lifting cabinet hanging on the wall of the family kitchen.

Background technique:

The utility model patent with the authorized notification number CN2770468Y discloses an electric lifting cabinet hanging on the wall of the family kitchen. A double-layer storage tray that can be raised and lowered on the three-section slide rail, an upper limit switch, a lower limit switch, and a down button and an up button that are arranged on the control panel on the lower edge of the front of the cabinet for controlling the lifting of the storage tray. The lifting mechanism in the above utility model adopts two similar structures, one is: the motor arranged on the top of the cabinet is connected to a gearbox; the output shaft of the gearbox is fixedly connected to the driving sprocket; the driving sprocket is driven by a chain The driven sprocket rotates, because a certain joint on the chain is provided with a fixed clip, and the fixed clip clamps the column pin arranged at the midpoint of the inner side of the upper storage tray, so when the motor runs, the chain will drive the storage The plate rises or falls, and the fixed clip in this structure is also the contact of the upper and lower limit switches. When the fixed clip touches the push rod of the limit switch, the circuit of the lifting mechanism will be cut off, the motor stops rotating, and the rising Or drop and stop. Another structure of the lifting mechanism is the transmission mode of winding wheel and sling: the motor is connected to a gearbox, the output shaft of the gearbox is fixedly connected to the winding wheel, and the end of the sling is tied to the midpoint inside the upper storage tray , with the rotation of the winding wheel, the sling will be rolled up or lowered, so that the storage tray will rise or fall. The limit switch and contacts of the lifting mechanism of this structure can only be set at the storage tray and the cabinet. suitable location.

In actual use, although the electric lifting cabinet with the above structure overcomes the inconvenient defect of accessing items in the wall-mounted hanging cabinet, it still has a disadvantage: because the double-layer storage tray only passes through it One side is connected with a chain or a sling to complete the ascent or descent of the storage tray, so the described double-layer storage tray is not only not flexible enough in the process of ascent or descent, but also has serious vibrations, especially when the storage tray When the center of gravity is unstable, the shaking phenomenon is more serious, which will eventually affect the normal use of the cabinet.

In addition, although the utility model patent with the authorized notification number CN2770468Y can stop the rotation of the motor through the limit switch, that is, stop the rising or falling of the storage tray, but because the speed of the storage tray remains unchanged during the process of rising or falling , so when the fixing clip or the storage tray touches the push rod of the limit switch, the storage tray will have a strong impact with the bottomless cabinet under the action of great inertia and produce a lot of noise. In severe cases, the storage tray or no The bottom cabinet body can also be damaged due to strong impact.

Invention content:

The technical problem to be solved by the present invention is to provide an electric lift cabinet that is flexible in lifting and does not shake during the process of rising and falling.

The technical solution of the present invention is to provide an electric lifting cabinet with the following structure: it includes a bottomless cabinet body, a locker panel and a lifting switch; a motor is installed on the top of the bottomless cabinet body; A lifting mechanism is provided between the cabinet body and the locker panel; an upper limit switch and a lower limit switch are arranged on the right inner wall of the bottomless cabinet body; the lift mechanism includes left, The right movable pulley, the left and right static pulleys respectively installed on both sides of the top of the bottomless cabinet, the drive pulley installed in the middle of the top of the bottomless cabinet and connected to the motor, and the left and right belts; one end of the left and right belts is fixed on the On the driving pulley, its other end is fixed on the left and right fixed rods located next to the left and right static pulleys after going around the left and right static pulleys and the left and right movable pulleys respectively; The inner wall of the cabinet is dynamically matched; a deceleration switch is provided on the inner wall of the bottomless cabinet between the upper limit switch and the lower limit switch; the deceleration switch is connected to the motor controller on the top of the bottomless cabinet; the motor The controller is connected with the motor.

After adopting the above structure, compared with the prior art, the present invention has the following advantages: since the two sides of the top of the locker plate in the present invention are movably connected with the two sides of the top of the bottomless cabinet body through belts, the present invention is not only flexible in lifting, Moreover, even if the center of gravity is unstable during the lifting process, it can always maintain the movement trend of smooth lifting. After the deceleration switch is set on the right inner wall of the bottomless cabinet between the upper limit switch and the lower limit switch, when the left and right moving pulley frames touch the deceleration switch when the locker panel is rising or falling, the deceleration switch will give the motor A deceleration signal from the controller, so as to slow down the rising or falling speed of the locker plate, effectively avoiding the strong impact of the locker plate on the bottomless cabinet due to the rapid motion inertia, which will cause a lot of noise and prevent storage Cabinet panels or bottomless cabinets are damaged by strong impacts.

The above-mentioned left and right movable pulleys are movably matched with the inner wall of the bottomless cabinet. The left and right movable pulleys are respectively installed on the sides with chute and can touch the upper limit switch and the lower limit switch during the up and down movement. on the frame; the two left and right movable pulley frames are respectively fixed on both sides of the top of the locker; the inner wall of the bottomless cabinet is provided with guide rails matching the chute.

The above-mentioned driving pulley is installed in the middle of the top of the bottomless cabinet and connected with the motor, and the following specific structure can be adopted: a driving pulley frame is fixed in the middle of the top of the bottomless cabinet; a pulley shaft is rotatably connected to the pulley frame; The driving pulley is fixed on the pulley shaft; a worm gear is fixed at one end of the pulley shaft, and the worm gear is engaged with the worm screw arranged on the output shaft of the motor.

Description of drawings:

Fig. 1 is a schematic diagram of the perspective structure after the locker panel of the electric lifting cabinet of the present invention is lowered.

Fig. 2 is a schematic diagram of the structure of the electric lifting cabinet of the present invention when the cabinet door and the belt are not installed, after the tray of the locker is lowered.

Fig. 3 is a schematic structural view of the locker tray in the electric lifting cabinet of the present invention.

Fig. 4 is a left perspective structure schematic diagram of the electric lifting cabinet of the present invention after the locker panel is lowered.

Fig. 5 is a perspective structure schematic diagram of the locker panel of the electric lifting cabinet of the present invention after it is raised (closed).

Fig. 6 is an enlarged structural schematic diagram of the left static pulley assembly in the electric lifting cabinet of the present invention.

As shown in the figure: 1. Bottomless cabinet body, 2. Locker tray, 3. Motor, 4. Upper limit switch, 5. Lower limit switch, 6. Lifting switch, 7. Left moving pulley, 8. Right moving pulley, 9, left static pulley, 10, right static pulley, 111, left belt, 112, right belt, 12, drive pulley, 131, left fixed rod, 132, right fixed rod, 14, chute, 151, left moving pulley frame, 152, right moving pulley frame, 153, drive pulley frame, 154, left static pulley frame, 155, right static pulley frame, 16, guide rail, 17, deceleration switch, 18, motor controller, 19, pulley shaft, 20, worm gear, 21, worm screw, 22, cabinet door, 23, movable support, 241, long groove I, 242, long groove II, 251, small cylinder I, 252, small cylinder II, 26, pulley, 27, spring, 28, handle.

Detailed ways:

The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

As shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, same as the prior art, the electric lifting cabinet of the present invention comprises a bottomless cabinet body 1, a locker tray 2 and a lifting switch 6; A motor 3 is installed on the top of the cabinet body 1; a lifting mechanism is provided between the bottomless cabinet body 1 and the locker tray 2; an upper limit switch 4 and a lower limit switch are arranged on the right inner wall of the bottomless cabinet body 1 The switch 5 ; the lift switch 6 is arranged on the handle 28 at the bottom of the locker tray 2 and is electrically connected with the motor controller 18 . In the present invention, the upper limit switch 4 and the lower limit switch 5 can be arranged on the left inner wall or the right inner wall of the bottomless cabinet body 1 at the same time. In the present invention, the upper limit switch 4 and the lower limit switch 5 are preferably arranged on the bottomless cabinet. On the right inner wall of the cabinet body 1, the "left" and "right" referred to in the specific embodiments of this specification mean that the left side of the drawings is left, and the right side of the drawings is right. The biggest difference with the prior art is: the lifting mechanism described in the present invention includes a left movable pulley 7 and a right movable pulley 8, a left static pulley 9 and a right static pulley 10, left and right belts 111, 112 and a drive connected to the motor 3. pulley12. Described left movable pulley 7 and right movable pulley 8 are installed on left and right movable pulley frame 151,152 respectively, and described left and right movable pulley frame 151,152 are respectively installed on the both sides of locker dish 2 tops and along with locker During the lifting process of the disk 2, the upper limit switch 4 and the lower limit switch 5 will be touched, so that the locker disk 2 stops rising or falling; the left static pulley 9 and the right static pulley 10 are installed on the left and right static pulleys respectively Frames 154, 155, the left and right static pulley frames 154, 155 are respectively installed on both sides of the bottomless cabinet 1 top, as shown in Figure 6, on the left and right static pulley frames 154, 155 described in the present invention Left and right fixed rods 131,132 are arranged next to the left and right static pulleys 9,10.

In the present invention, the drive pulley 12 connected to the motor 3 is installed on the drive pulley frame 153, and the drive pulley frame 153 is installed at the middle position on the top of the bottomless cabinet body 1; the drive pulley frame 153 is rotatably connected with Pulley shaft 19; the drive pulley 12 is fixed on the pulley shaft 19; one end of the pulley shaft 19 is fixed with a worm wheel 20, and the worm wheel 20 is engaged with the worm 21 arranged on the output shaft of the motor 3 .

In the present invention, one end of the left belt 111 is fixed on the driving pulley 12, and its other end is fixed on the left fixed rod 131 after bypassing the left static pulley 9 and the left moving pulley 7 successively; one end of the right belt 112 is fixed on the driving pulley 12, its other end is fixed on the right fixed rod 133 after bypassing the right static pulley 9 and the right movable pulley 7 successively; the left and right movable pulleys 7,8 and the bottomless cabinet are installed on the left and right movable pulley frames 152,151 1. The inner wall is movable, and the moving fit adopts the following specific structure: the sides of the left and right movable pulley frames 151, 152 are respectively provided with chute 14, and the inner wall of the bottomless cabinet body 1 is provided with a The guide rail 16 that chute 14 cooperates. In the present invention, balls can be arranged on the edges of both sides of the guide rail 16 , so as to realize the rolling fit between the slide groove 14 and the guide rail 16 .

As an improvement of the present invention, a deceleration switch 17 is provided on the right inner wall of the bottomless cabinet 1 between the upper limit switch 4 and the lower limit switch 5; The motor controller 18 is connected; the motor controller 18 is connected with the motor 3 . Since it is a conventional technique to realize the deceleration of the motor 3 through the deceleration switch 17 and the motor controller 18, the present invention will not describe this conventional technique in detail.

In addition, the front of the bottomless cabinet body 1 in the electric lifting cabinet of the present invention is also equipped with a cabinet door 22 that can be automatically closed and opened as the locker tray 2 rises and falls. The specific installation method adopts the following specific structure: The top of the cabinet door 22 is hinged on the top of the bottomless cabinet body 1; the left and right inner walls of the bottomless cabinet body 1 are respectively connected with a movable support 23 in a shaft-fitting manner, and the middle part of the movable support 23 is provided with A long groove I 241 and a small cylinder I251; the long groove I241 and the small cylinder II252 slidingly fitted on the inner wall of the bottomless cabinet body 1; the small cylinder I251 and the long groove on the edge of the cabinet door 22 II242 sliding fit; the lower part of the movable support 23 rolls with the pulley 26 on the top of the bottomless cabinet 1 in the form of a guide rail; a spring 27 is connected between the movable support 23 and the inner wall of the bottomless cabinet 1 . When the locker tray 2 descends, the movable support 23 will be forced to rotate at a small angle around the axis of the connection between the upper end and the inner side wall of the bottomless cabinet body 1, thereby opening the cabinet door 22; when the locker tray 2 rises, Movable support 23 can make cabinet door 22 close under the joint action of spring and locker dish again. Adopting the cabinet door 22 of this structure can make the present invention open or close the cabinet door 22 while descending or rising, thereby increasing the convenience of the present invention to use.

Claims (3)

1. an electric up-down kitchen cabinet comprises no base cabinet body (1), locker dish (2) and direction switch (6); Described no base cabinet body (1) top is equipped with motor (3); Be provided with elevating mechanism between described no base cabinet body (1) and the locker dish (2); Described no base cabinet body (1) Right Inboard wall is provided with upper limit position switch (4) and lower position switch (5), and described elevating mechanism comprises the left and right movable pulley (7,8) that is installed in locker dish (2) both sides, top respectively, the drive pulley (12) that is installed in the left and right quiet pulley (9,10) on no base cabinet body (1) both sides, top, left and right belt (111,112) and is installed in no base cabinet body (1) crown center and is connected with motor (3) respectively; Described left and right belt (111, a 112) end is fixed on simultaneously on drive pulley (12), and its other end is fixed on the left and right fixed bar (131,132) of being located at left and right quiet pulley (9,10) next door after being taken up in order of priority and walking around left and right quiet pulley (9,10) and left and right movable pulley (7,8); Described left and right movable pulley (7,8) and no base cabinet body (1) madial wall are movingly; It is characterized in that: no base cabinet body (1) the Right Inboard wall between described upper limit position switch (4) and the lower position switch (5) is provided with speed reducing switch (17); Described speed reducing switch (17) is connected with the motor controller (18) at no base cabinet body (1) top; Described motor controller (18) is connected with motor (3).

2. electric up-down kitchen cabinet according to claim 1, it is characterized in that: described left and right movable pulley (7,8) and no base cabinet body (1) madial wall refer to movingly, described left and right movable pulley (7,8) be installed in respectively the side be provided with chute (14) and in up and down, can touch upper limit position switch (4) and the left and right movable pulley frame of lower position switch (5) (151,152) on; Described left and right movable pulley frame (151,152) is fixed on locker dish (2) both sides, top; Described no base cabinet body (1) madial wall is provided with the guide rail (16) that matches with chute (14).

3. electric up-down kitchen cabinet according to claim 1, it is characterized in that: the described drive pulley (12) that is installed in no base cabinet body (1) crown center and is connected with motor (3) refers to that described no base cabinet body (1) crown center is fixed with a drive pulley frame (153); Be connected with pulley spindle (19) on the described drive pulley frame (153) rotationally; Described drive pulley (12) is fixed on the pulley spindle (19); Described pulley spindle (19) one ends are fixed with worm gear (20), and described worm gear (20) is meshed with worm screw (21) on being located at motor (3) output shaft.

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