CN111657688A

CN111657688A - Lifting drawer

Info

Publication number: CN111657688A
Application number: CN201910168218.0A
Authority: CN
Inventors: 陈龙灿
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-03-06
Filing date: 2019-03-06
Publication date: 2020-09-15
Anticipated expiration: 2039-03-06
Also published as: CN111657688B

Abstract

The invention relates to a lifting drawer, which comprises a drawer body (9), and is characterized in that the drawer body comprises a frame body (91), a box body (92) and a panel assembly (93), wherein the box body (92) is movably supported on the frame body (91), and the panel assembly (93) is connected with the front side surface of the frame body; the lifting box is characterized in that a pull rod assembly (1) is arranged on the panel assembly (93), the pull rod assembly (1) is in driving connection with a lifting mechanism (3) through a transmission assembly (2), and the lifting mechanism (3) drives the box body (92) to lift. Compared with the prior art, the lifting drawer provided by the invention can be manually operated according to needs, does not consume electric energy, has a simple structure and stable and reliable transmission, does not depend on a cabinet body structurally, and can replace any existing drawer, so that the taking and placing requirements of different heights are met. The application is particularly suitable for being used as a drawer of a disinfection cabinet.

Description

Lifting drawer

Technical Field

The invention relates to a drawer structure, in particular to a lifting drawer.

Background

CN200720111304.0 discloses a disinfection cabinet, which comprises a cabinet body, a drawer, a cabinet door and a controller, wherein the drawer is fixed with the cabinet door, guide rails are arranged on two sides in the cabinet body, slide rails capable of moving on the guide rails are arranged on two sides of the drawer, a lifting frame is arranged on the drawer, a lifting device is arranged between the drawer and the lifting frame, and the lifting device is electrically connected with the controller. When the drawer is opened, the lifting device is lifted under the action of the controller, the basket on the lifting frame is higher than the drawer in the cabinet body, a user can take and place articles conveniently, when the drawer is closed, the lifting device is lowered under the action of the controller, and the lifting frame is lowered to a normal position at the moment.

The technology can automatically raise the height of the drawer after the drawer is pulled open, so that people can place articles conveniently, but the drawer does not need to be provided with an electric driving mechanism and a control mechanism, so that the structure is complex, and electric energy is consumed.

Disclosure of Invention

The invention aims to solve the technical problem of providing a lifting drawer which can automatically change the height without consuming electric energy and is convenient to control aiming at the current situation of the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: a lifting drawer comprises a drawer body, and is characterized in that the drawer body comprises a frame body, a box body and a panel assembly, wherein the box body is movably supported on the frame body, and the panel assembly is connected with the front side surface of the frame body;

the panel assembly is provided with a pull rod assembly, the pull rod assembly is in driving connection with a lifting mechanism through a transmission assembly, and the lifting mechanism drives the box body to lift;

the lifting mechanism comprises:

the two lifting guide rails are arranged in parallel and vertically fixed on the side wall of the frame body;

the lifting rod is in driving connection with the box body, and two ends of the lifting rod are respectively limited on the two lifting guide rails in a sliding manner;

the first driving rod is a telescopic rod, one end of the first driving rod is hinged to the lifting slide block, and the other end of the first driving rod is hinged to the frame body;

the lifting slide block is limited on the lifting guide rail close to the panel component in a sliding manner; the other end of the reversing rod is in driving connection with the lifting slide block; the lifting slide block is positioned below the lifting rod;

one end of the second driving rod is hinged to the frame body, the other end of the second driving rod is hinged to a fixed seat, and the fixed seat is positioned relative to the lifting rod;

and the sliding sleeve is sleeved on the second driving rod, and the middle part of the sliding rod is hinged on the fixed seat through a hinge seat.

The first driving rod comprises a sleeve and a sliding rod; the first end of the sleeve is hinged to the lifting slide block; the first end of the sliding rod can be slidably inserted into the inner cavity of the sleeve, and the second end of the sliding rod is hinged to the frame body.

The lifting mechanism further comprises a limiting block for limiting the displacement of the sliding sleeve, and the limiting block is arranged on the second driving rod; when the box body rises to the highest position, the limiting block limits the included angle between the sliding rod and the second driving rod part below the sliding sleeve to be 85-90 degrees.

Preferably, in order to facilitate the installation of each component and ensure the neat and beautiful appearance of the drawer, the panel assembly may include a frame body connected to the front end side of the frame body and a panel connected to the frame body; the space between the frame body and the panel forms a cavity for containing the pull rod assembly, and the panel is provided with a pull rod groove protruding towards the frame body. The panel assembly may also be a unitary piece with a cavity.

The structure of the pull rod assembly in each of the above schemes can be various, preferably, the pull rod assembly comprises:

the pull rod is transversely arranged in the pull rod groove and is used for an operator to hold the pull rod for operation, two ends of the pull rod penetrate through two side walls of the pull rod groove and are respectively connected with two pull rod sliding blocks, and the two pull rod sliding blocks can be connected to the two support rods in a sliding manner; the two support rods are vertically arranged in the cavity.

Further, the pull rod assembly further comprises an elastic piece for assisting the pull rod to act; the two ends of the elastic piece are respectively abutted against the frame body and the pull rod. The design of elastic component can reduce the initial force that the handle started the pull rod subassembly, can easily rise the box body.

The elastic member can be any one of the prior art as required, preferably, the elastic member is a gas spring.

Preferably, the number of the elastic parts is two, and the two elastic parts are arranged in parallel to balance the stress of the handle.

As a further improvement of the above solutions, the transmission assembly preferably includes a transmission rod with a length capable of stretching, and one end of the transmission rod is hinged to the pull rod slider and can move along with the movement of the pull rod slider; the middle part of the transmission rod is hinged on the frame body through a transmission sliding block; the other end of the transmission rod is hinged with a reversing rod, and the reversing rod is in driving connection with the lifting mechanism.

The telescopic transmission rod has various structures, preferably, the transmission rod comprises a first transmission rod with a cylindrical structure and a second transmission rod which is inserted in the first transmission rod in a sliding manner; one end of the first transmission rod is hinged with the pull rod sliding block, and the middle part of the first transmission rod is hinged on the frame body through the transmission sliding block; one end of the second transmission rod is hinged with the reversing rod.

Preferably, the reversing rod is L-shaped, one end of the reversing rod is hinged with the second transmission rod, and the other end of the reversing rod can be slidably arranged in the guide hole in a penetrating manner; the guide hole is arranged on the frame body.

Compared with the prior art, the lifting drawer provided by the invention can be manually operated according to needs, does not consume electric energy, has a simple structure and stable and reliable transmission, does not depend on a cabinet body structurally, and can replace any existing drawer, so that the taking and placing requirements of different heights are met. The application is particularly suitable for being used as a drawer of a disinfection cabinet.

Drawings

FIG. 1 is a perspective view of the embodiment of the present invention in a use state (with the box body partially raised);

FIG. 2 is an exploded view of a panel assembly and its internal components in accordance with an embodiment of the present invention;

FIG. 3 is a schematic perspective view (box reset state) of an embodiment of the present invention;

FIG. 4 is a perspective view (partially raised state) illustrating an embodiment of the present invention;

fig. 5 is a schematic perspective view (the box body is in the highest state) of the embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 5, the liftable drawer structure includes:

the drawer body 9, which can be drawn and pulled, is disposed in the cabinet 90 and includes a frame body 91, a box body 92 and a panel assembly.

Wherein:

and a frame body 91 for carrying the box body 92 and serving as a mounting base of the lifting mechanism.

The box body 92 is used for containing objects, supported on the frame body 91 and driven by the lifting mechanism to ascend or descend; the structure of the box body can be any one of the prior art according to the requirement, such as a hollow pull-out basket, a box body composed of solid plates, and the like.

The panel assembly 93, set up at the front side of frame body 91, including connecting frame 931 and the panel 932 of connecting on frame 931 on the front end lateral surface of frame body 91, the space between frame 931 and panel 932 forms the cavity 933 that is used for holding pull rod assembly 1, is equipped with on the panel to the protruding pull rod groove 934 of frame 931.

The pull rod assembly 1, manually operation, through drive assembly 2 start elevating system 3, includes:

the pull rod 11 is transversely arranged in the pull rod groove 934 for an operator to hold for operation, two ends of the pull rod 11 penetrate through two side walls of the pull rod groove and are respectively connected with two pull rod sliding blocks 15, and the two pull rod sliding blocks 15 can be connected to the two support rods 12 in a sliding mode. Both struts 12 are vertically disposed within the cavity 933, with both ends fixed to the frame 931 so that the struts 12 are positioned relative to the cavity.

The elastic piece 13 is arranged in the cavity 933 and used for assisting the pull rod 11 to act so as to reduce the initial force for pulling the pull rod, and any one of the prior art can be selected according to needs, and the embodiment is a gas spring; the base of the gas spring is fixed to the frame 931, and its piston rod is perpendicular to the pull rod and is connected to the pull rod. The gas spring in this embodiment has two, and mutual parallel arrangement.

Drive assembly 2 sets up in cavity 933 for on transmitting elevating system 3 with the pulling force of pull rod, have two sets ofly, connect respectively and set up in cavity 933 for pull rod 11 symmetry in two hands, two sets of drive assembly's structure is the same, all includes:

the driving rod 21, which is a telescopic rod, includes a first driving rod 211 and a second driving rod 212 slidably inserted into the inner cavity of the first driving rod 211. One end of the first transmission rod 211 is hinged with the pull rod slide block 15 and can move along with the movement of the pull rod slide block 15; the middle of the first transmission rod 211 is hinged to the frame 931 through the transmission slider 22. One end of the second transmission rod 212 is hinged to the reversing lever 23.

The reversing lever 23 is L-shaped, one end of which is hinged to the second transmission lever 212 and can move up and down along with one end of the second transmission lever 212, and the other end of which is connected with the input end of the lifting mechanism 3, so that the moment generated by the action of the pull rod is transmitted to the lifting mechanism 3.

And a guide hole 24 provided in the frame 931, wherein the second rod portion of the reversing rod 23 is slidably inserted into the guide hole 24.

Elevating system 3 has two sets ofly, connects two reversing lever respectively, and the symmetry sets up in the both sides of frame body for drive box body 92 goes up and down, all includes:

the two lifting guide rails 311 are arranged in parallel and vertically fixed on the side wall of the frame body;

the lifting rod 32 is connected with the box body 92 in a driving mode, and two ends of the lifting rod 32 are limited on the two lifting guide rails 311 in a sliding mode respectively;

the first driving rod 33 is a telescopic rod and comprises a sleeve 331 and a sliding rod 332; the first end of the sleeve is hinged on the lifting slider 34 and moves along with the movement of the lifting slider 34, the first end of the sliding rod 332 is inserted into the inner cavity of the sleeve from the second end port of the sleeve 331 and can slide relative to the sleeve 331 to realize the extension and contraction of the first driving rod, and the second end of the sliding rod is hinged on the frame body, which is hinged on the bottom cross rod 911 of the frame body in the embodiment.

The lifting slide block 34 can be limited on a lifting guide rail 311 close to the panel component in a sliding way; the other end of the reversing rod 23 is connected with the lifting slide block 34 in a driving way. The lifting slider 34 is located below the lifting rod 32.

One end of the second driving rod 35 is hinged to the cross rod 911, the hinge point is located in front of the hinge point of the first driving rod and the cross rod 911, the other end of the second driving rod is hinged to the fixing seat 381, and the fixing seat 381 can be limited on the lifting rod 32 in a sliding mode.

And the sliding sleeve 38 is slidably sleeved on the second driving rod 35, and the middle part of the sliding rod 322 is hinged on the fixed seat 381 through the hinge seat 33.

The limiting block 30 is arranged on the second driving rod 35 and is positioned above the sliding sleeve 38 and used for limiting the displacement of the sliding sleeve 38; the position of the limiting block 30 is based on the fact that when the box body rises to the highest position, the included angle between the sliding rod 332 and the second driving rod part below the sliding sleeve is 87-88 degrees.

The working principle of the lifting drawer is described as follows:

after the drawer body is pulled open, when the box body needs to be lifted, the pull rod is pulled down, under the assistance of the elastic piece, the pull rod can be pulled to move down along the supporting rod with small force, one end of the first transmission rod is driven to move down along the supporting rod, the transmission rod rotates along the transmission slide block, and the other end of the second transmission rod is driven to drive the reversing rod to move up along the guide hole.

The reversing rod moves upwards to pull the first end of the sleeve to move upwards, the first driving rod stretches and retracts and rotates clockwise by taking the hinge point of the sliding rod as a circle center, the sliding sleeve is driven to move upwards along the second driving rod, and meanwhile the second driving rod is driven to rotate anticlockwise along the hinge point; the second driving rod drives the lower part of the fixed seat to slide along the lifting rod, and simultaneously jacks up the lifting rod, so that the box body rises; the second driving rod is gradually erected, when the sliding sleeve touches the limiting block, the second driving rod is not rotating, and at the moment, the box body rises to the highest position, so that people can conveniently take and place articles in the box body.

When the lifting rod rises to the highest position, the included angle alpha between the sliding rod and the second driving rod is 87 degrees and is slightly smaller than 90 degrees, at the moment, the pull rod is loosened, the weight of the box body acts on the lifting rod, so that the lifting rod has the trend of sliding towards the panel component, but the trend is prevented under the action of the limiting block, the whole lifting mechanism is in a locking state under the action of the gravity of the box body and articles in the box body, and the box body is in a stable state.

When the drawer body needs to be pushed back, the pull rod is slightly pushed upwards, the air spring retracts, all the components move reversely, when the alpha angle is smaller than 87 degrees, the self-locking state is unlocked, all the components move reversely under the weight of the box body, and after the box body moves downwards and resets, the whole drawer body can be pushed back into the cabinet body.

Claims

1. A lifting drawer comprising a drawer body (9), characterized in that the drawer body comprises a frame body (91), a box body (92) and a panel assembly (93), the box body (92) is movably supported on the frame body (91), the panel assembly (93) is connected to a front side of the frame body;

a pull rod assembly (1) is arranged on the panel assembly (93), the pull rod assembly (1) is in driving connection with a lifting mechanism (3) through a transmission assembly (2), and the lifting mechanism (3) drives the box body (92) to lift;

the lifting mechanism (3) comprises:

two lifting guide rails (311) are arranged in parallel and vertically fixed on the side wall of the frame body (91);

the lifting rod (32) is in driving connection with the box body (92), and two ends of the lifting rod are respectively limited on the two lifting guide rails (311) in a sliding manner;

the first driving rod (33) is a telescopic rod, one end of the first driving rod is hinged on the lifting slide block (34), and the other end of the first driving rod is hinged on the frame body;

the lifting slide block (34) is limited on a lifting guide rail (311) close to the panel component in a sliding way; the other end of the reversing rod (23) is in driving connection with the lifting slide block (34); the lifting slide block (34) is positioned below the lifting rod (32);

the second driving rod (35) is hinged to the frame body (91) at one end, and hinged to a fixed seat (381) at the other end, and the fixed seat (381) is positioned relative to the lifting rod (32);

and the sliding sleeve (38) is sleeved on the second driving rod (35) in a sliding manner, and the middle part of the sliding rod (322) is hinged on the fixed seat (381) through the hinge seat (33).

2. The lifting drawer according to claim 1, characterized in that the first driving rod (33) comprises a sleeve (331) and a sliding rod (332); the first end of the sleeve is hinged on the lifting slide block (34); the first end of the sliding rod (332) is slidably inserted into the inner cavity of the sleeve, and the second end of the sliding rod is hinged to the frame body.

3. The lifting drawer according to claim 2, characterized in that the lifting mechanism further comprises a stop block (30) for limiting the displacement of the sliding sleeve (38), the stop block (30) being provided on the second driving rod (35); when the box body (92) rises to the highest position, the limiting block (30) limits an included angle between the sliding rod (332) and the second driving rod part below the sliding sleeve (38) to be 85-90 degrees.

4. The lifting drawer according to any of claims 1 to 3, characterized in that the panel assembly (93) comprises a frame body (931) connected to a front end side face of the frame body (91) and a panel (932) connected to the frame body (931); the space between the frame body (931) and the panel (932) forms a cavity (933) for accommodating the pull rod assembly (1), and the panel (932) is provided with a pull rod groove (934) protruding towards the frame body (931).

5. The lifting drawer according to claim 4, characterized in that said tie assembly (1) comprises:

the pull rod (11) is transversely arranged in the pull rod groove (934) and is used for an operator to hold the pull rod, two ends of the pull rod (11) penetrate through two side walls of the pull rod groove and are respectively connected with two pull rod sliding blocks (15), and the two pull rod sliding blocks (15) can be connected to the two support rods (12) in a sliding mode; two struts (12) are vertically arranged in the cavity (933).

6. The lifting drawer according to claim 5, characterized in that the tie rod assembly (1) further comprises an elastic member (13) for assisting the action of the tie rod (11); the elastic piece is connected with the pull rod (11) in a driving way.

7. Lifting drawer according to claim 6, characterized in that said elastic elements (13) are two and arranged parallel to each other.

8. The lift drawer of claim 7, wherein said resilient member is a gas spring.

9. The lifting drawer according to claim 5, characterised in that the transmission assembly (2) comprises a transmission rod (21) of telescopic length, one end of which is hinged to the tie rod slider (15) and can move with the movement of the tie rod slider (15); the middle part of the transmission rod is hinged on the frame body (931) through a transmission sliding block (22); the other end of the transmission rod is hinged with a reversing rod (23), and the reversing rod is in driving connection with the lifting mechanism (3).

10. The lifting drawer according to claim 9, characterized in that said transmission rod (21) comprises a first transmission rod (211) of cylindrical configuration and a second transmission rod (212) slidingly inserted inside said first transmission rod (211); one end of the first transmission rod (211) is hinged with the pull rod sliding block (15), and the middle part of the first transmission rod (211) is hinged on the frame body (931) through the transmission sliding block (22); one end of the second transmission rod (212) is hinged with the reversing rod (23).

11. The lifting drawer according to claim 10, characterized in that said reversing lever (23) is "L" shaped, one end of which is hinged to said second transmission lever (212) and the other end is slidably inserted in a guide hole (24); the guide hole (24) is provided in the frame body (931).