CN106839615B

CN106839615B - Door supporting component and refrigerator

Info

Publication number: CN106839615B
Application number: CN201611220270.9A
Authority: CN
Inventors: 李浩鹏; 吴福民; 侯代民; 高秀森
Original assignee: Qingdao Haier Special Refrigerator Co Ltd
Current assignee: Qingdao Haier Special Refrigerator Co Ltd
Priority date: 2016-12-26
Filing date: 2016-12-26
Publication date: 2020-09-11
Anticipated expiration: 2036-12-26
Also published as: CN106839615A

Abstract

The invention provides a door supporting component and a refrigerator, which are used for preventing a door body hinged on a box body from drooping. The height of the support body assembly can be adjusted by arranging the support body assembly to move up and down, and when the door body is closed, the support body assembly moves down, so that the distance between the support body assembly and the door body in the up-down direction is increased, and the smooth closing of the door body is facilitated; then the support body assembly is reset upwards and is contacted with the lower end face of the door body, and when the door body has a sagging tendency, the support body assembly gives a supporting force to the door body to avoid the sagging of the door body; when the door body is opened, the support body assembly is moved downwards, so that smooth opening of the door body is facilitated. Simple structure and high reliability.

Description

Door supporting component and refrigerator

Technical Field

The invention belongs to the technical field of refrigerators, and particularly relates to a door support assembly and a refrigerator.

Background

The vertical refrigerator glass door body is easy to sag due to the large self weight, namely, the vertical refrigerator glass door body sags at the opened side of the door body, or the vertical refrigerator glass door body is arranged at the side, far away from the hinge shaft, of the door body; the drooping of the door body directly affects the image of the product, even directly affects the function of the product in serious cases, causes the problems of untight door closing, cold air leakage and door body damage, and causes the defects of poor refrigeration effect, short service life of the door body and the like.

At present, in order to solve the problem of door sagging, most products are that an elastic cushion block is directly plugged in a door support and a door body before packaging and leaving factory so as to provide a support for the door body and avoid the door body sagging in transportation; when the door is used by a user, the elastic cushion block is removed so that the door body can be opened and closed smoothly. And a support sheet is pre-installed on the door body, when the door is closed, a support force is generated between the door body and the box body so as to avoid the door body from sagging, and when the product reaches the home of a user, the support sheet needs to be additionally detached. The two schemes can solve the problem that the door body sags more or less in the transportation process, but various defects exist, the two modes mainly aim at the door body sag in the transportation process, and the sag of the door body in the use process and the sag of a user in the secondary transfer process of the refrigerator are difficult to solve; needs to be pre-assembled before leaving the factory and needs to be disassembled when arriving at the home of a user, also generates unnecessary labor cost,

in addition, a part of products are provided with door supports with roller structures, so that the door body can be well prevented from sagging in the using process of a user; the door support with the structure needs larger force to realize the opening and closing of the door body, in addition, if the assembly gap is too small, the door body is difficult to close, but the gap is too large and easy to lose efficacy, and because of the manufacturing dimension error and the installation error of the door support, the gap between the door support and the door body is difficult to control and is the most appropriate value, so that the quality is difficult to control.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a door support assembly, which improves the support for a door body, avoids the door body from drooping and ensures that the door body can be opened and closed smoothly.

In order to achieve the technical purpose, the invention adopts the following technical scheme:

a door supporting component is used for preventing a door body hinged on a box body from drooping and comprises a supporting seat fixed on the box body, a supporting body assembly arranged on the supporting seat and capable of moving up and down, and a push plate fixed on the door body and capable of pushing the supporting body assembly to move.

Further, when the door body is closed and is close to the supporting seat, the push plate pushes the supporting body assembly to move downwards, so that the door body is convenient to close; and then the support body assembly resets upwards and is contacted with the lower end surface of the door body.

Furthermore, the support device also comprises a sleeve which is fixed on the support seat and sleeved outside the support body assembly, and the support body assembly can move up and down in the sleeve.

Furthermore, a push rod which extends leftwards and/or rightwards and is matched with the push plate is arranged on the support body assembly.

Further, the push rod extends out of the supporting seat.

Furthermore, the support body assembly comprises a support block which is coaxially arranged and matched with the lower end face of the door body, a middle shaft positioned below the support block and a spring sleeved on the outer side of the middle shaft, and a push rod matched with the push plate is arranged on the middle shaft.

Furthermore, the support body assembly further comprises a locking block with elasticity, the locking block is located between the supporting block and the middle shaft, a conical or truncated cone-shaped locking portion is arranged at the lower end of the supporting block, an accommodating portion matched with the locking portion is arranged on the locking block, and the locking portion is located in the accommodating portion.

Further, the outer diameter of the locking block is matched with the inner diameter of the sleeve.

Furthermore, the locking block comprises at least two locking units which are equally distributed in the circumferential direction, and the adjacent locking units have a certain distance in the circumferential direction.

Furthermore, an annular convex block protruding upwards is arranged at the upper end of the middle shaft, a groove matched with the convex block is formed in the locking block, and the convex block is located in the groove.

Further, the groove is communicated with the accommodating part, and the lower end of the locking part is positioned in the groove.

Furthermore, an end cover is fixed at the lower end of the sleeve, and a through hole extending out of the middle shaft is formed in the end cover.

Further, the middle shaft comprises a middle shaft main body and a support ring extending outwards in the radial direction, and the outer diameter of the support ring is matched with the inner diameter of the sleeve.

Further, the spring is arranged between the support ring and the end cover.

Furthermore, the middle shaft extends out of the sleeve downwards, and a push rod matched with the push plate is arranged on the middle shaft.

Furthermore, a notch which is matched with the push rod and is provided with a downward opening is formed in the supporting seat, and the push rod moves up and down in the notch.

Furthermore, the push plate is provided with a fixing part fixed on the side face of the door body and an extending part extending forwards along the lower end of the fixing part, the extending part is provided with a push block which is matched with the push rod and protrudes downwards, and the lower end face of the push block is contacted with the push rod.

Furthermore, a first lock hole is formed in the push plate, and a second lock hole matched with the first lock hole is formed in the supporting seat.

Furthermore, the supporting block comprises a supporting block main body which is slidably positioned in the sleeve, the upper end of the supporting block main body extends out of the sleeve, and the upper end of the supporting block main body is provided with a contact body which extends outwards and is used for contacting and supporting the door body.

Furthermore, the upper portion of the sleeve is provided with a check ring extending inwards, the supporting block body is provided with a limiting block extending outwards, and the outer diameter of the limiting block is larger than the inner diameter of the check ring.

Based on the door supporting assembly, the invention further provides a refrigerator which is provided with the door supporting assembly, so that the support for the door body is improved, the door body is prevented from sagging, and the door body can be opened and closed smoothly.

A refrigerator is provided with the door supporting assembly.

According to the door supporting component provided by the invention, the supporting seat fixed on the box body and the supporting body assembly capable of moving up and down arranged on the supporting seat are arranged, the height of the supporting body assembly can be adjusted by arranging the supporting body assembly capable of moving up and down, and when the door body is closed, the supporting body assembly moves downwards, so that the distance between the supporting body assembly and the door body in the up-and-down direction is increased, and the smooth closing of the door body is facilitated; then the support body assembly is reset upwards and is contacted with the lower end face of the door body, and when the door body has a sagging tendency, the support body assembly gives a supporting force to the door body to avoid the sagging of the door body; when the door body is opened, the support body assembly is moved downwards, so that smooth opening of the door body is facilitated. The push plate is fixed on the door body and can push the support body assembly to move, so that when the door body is closed or opened, the push plate pushes the support body assembly to move downwards, and after the door body is completely closed or opened, the support body assembly resets upwards; therefore, in the process of closing or opening the door body, the downward movement of the support body assembly is realized by the force given to the door body by hands, and a special driving mechanism is avoided, so that the structure is simple, and the reliability is high.

Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.

Drawings

FIG. 1 is a schematic structural view of one embodiment of a door support assembly according to the present invention;

FIG. 2 is an enlarged schematic view of region A in FIG. 1;

FIG. 3 is a schematic diagram of a configuration of the closing process of FIG. 2;

FIG. 4 is an enlarged schematic view of the push plate of FIG. 3

FIG. 5 is an enlarged cross-sectional schematic view of the door support assembly of FIG. 3;

FIG. 6 is a schematic diagram of the exploded structure of FIG. 5;

FIG. 7 is an enlarged schematic view of the support base shown in FIG. 5;

FIG. 8 is an enlarged schematic view of the support block of FIG. 5;

FIG. 9 is an enlarged schematic view of the locking block of FIG. 5;

FIG. 10 is an enlarged schematic view of the bottom bracket axle of FIG. 5;

FIG. 11 is a schematic structural view of the support assembly of FIG. 2 in its initial state;

FIG. 12 is a schematic sectional view taken along line B-B in FIG. 11;

FIG. 13 is an enlarged view of the area C in FIG. 12;

fig. 14 is a force-bearing structure diagram of fig. 12.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "inside", "upper", "lower", "left", "right", etc. indicate the positional relationship based on the positional relationship shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 to 14, which are one embodiment of a door supporting assembly according to the present invention, the door supporting assembly 10 is used for a vertical refrigerator to prevent a door 30 hinged to a cabinet 20 from sagging; the door supporting assembly 10 includes a supporting base 1 fixed on the cabinet 20, a supporting body assembly 2 disposed on the supporting base 1 and capable of moving up and down, and a pushing plate 3 fixed on the door 30 and capable of pushing the supporting body assembly 2 to move down.

The height of the support body assembly 2 can be adjusted by arranging the support body assembly 2 to move up and down, and when the door body is closed, the support body assembly 2 moves downwards, so that the distance between the support body assembly 2 and the door body 30 in the up-down direction is increased, the friction between the upper part of the support body assembly 2 and the door body 30 is avoided, and the smooth closing of the door body 30 is facilitated; then, the support body assembly 2 is reset upwards and is contacted with the lower end face of the door body 30, when the door body 30 has a sagging tendency, the support body assembly 2 provides a supporting force for the door body 30, and the door body 30 is prevented from sagging; when the door body 30 is opened, the support body assembly 2 is also moved downwards, which is beneficial to smooth opening of the door body 30. In the embodiment, the push plate 3 is arranged to push the support body assembly 2 to move, so that when the door body 30 is closed or opened, the push plate 3 pushes the support body assembly 2 to move downwards, and after the door body is completely closed or opened, the support body assembly 2 resets upwards; like this at the in-process of closing the door or opening the door body, rely on the power that the staff gave the door body 30, transmit support body assembly 2 through push pedal 3 on, realize support body assembly 2's downstream, avoid setting up special actuating mechanism for simple structure, and the reliability is high.

In this embodiment, referring to fig. 5, the support device further includes a sleeve 5 fixed on the support base 1 and sleeved outside the support assembly 2, the support assembly 2 can move up and down in the sleeve 5, and the sleeve 5 is provided to facilitate the up and down movement of the support assembly 2.

In this embodiment, referring to fig. 3 and fig. 6, the support assembly 2 includes a support block 21 coaxially disposed and matched with the lower end surface of the door 30, a middle shaft 22 located below the support block, and a spring 24 sleeved outside the middle shaft 22, a push rod 221 matched with the push plate 3 is disposed on the middle shaft 22, and the push rod 221 extends outward from the support seat 1. The supporting block 21 is arranged for supporting the lower end face of the door body 30, so that supporting force is provided for the door body 30, and the door body is prevented from sagging; by arranging the middle shaft 22 and the push rod 221, the push plate 3 pushes the push rod 221 downwards, the middle shaft 22 moves downwards together, and the supporting block 21 also moves downwards under the action of gravity; and by providing a spring 24 for upward return of the support body assembly 2.

Referring to fig. 6, 13 and 14, an elastic locking block 23 is disposed between the supporting block 21 and the bottom bracket 22, a tapered or truncated cone-shaped locking portion 211 is disposed at the lower end of the supporting block 21, an accommodating portion 231 matched with the locking portion 211 is disposed on the locking block 23, and the locking portion 211 is disposed in the accommodating portion 231. By arranging the elastic locking block 23, when the door body sags, the supporting block 21 can bear downward pressure; because the locking part 211 of the supporting block 21 is in a conical or truncated cone-shaped structure, the pressure on the locking part 211 is decomposed into a force vertical to the contact surface and acting on the locking block 23, the force of the locking block 23 is decomposed into a radial outward force and a downward force, the locking block 23 is positioned in the sleeve 5, the radial outward force enables the locking block 23 to deform and tightly attached to the inner wall of the sleeve 5 so as to generate a huge friction force and neutralize the downward force applied to the locking block 23; therefore, the locking block 23 does not move downwards, that is, the locking block 23 supports the door 30 against the supporting block 21. When the push plate 3 pushes the push rod 221 to move downwards, i.e. the middle shaft 22 moves downwards, the locking block 23 and the supporting block 21 also move downwards under the action of gravity; therefore, the supporting block 21 can move downwards in the opening or closing process of the door body, so that the distance between the supporting block 21 and the door body 30 is increased, and the smoothness of the door body 30 is facilitated; when the door 30 is closed and has a tendency to droop, the door 30 applies a certain pressure to the support block 21, and the lock block 23 is fixed to support the support block.

In this embodiment, as shown in fig. 10 and 13, an annular protrusion 222 protruding upward is disposed at the upper end of the middle shaft 22, a groove 232 matching with the protrusion 222 is disposed on the locking block 23, and the protrusion 222 is disposed in the groove 232. The engagement between the shaft 22 and the locking piece 23 is increased by the protrusion 222 and the groove 232, because the locking piece 23 is slightly moved downward when the shaft 22 moves downward, and the locking piece 23 is pushed upward when the shaft returns upward. The groove 232 is communicated with the accommodating part 231, so that the lower end of the locking part 211 is positioned in the groove 232, and thus when the door body 30 applies pressure to the supporting block 21, the friction force between the locking block 23 and the sleeve 5 is increased due to the compression deformation of the locking block 23, so that the locking block 23 cannot move downwards; however, due to the compression deformation of the locking block 23, the supporting block 21 moves downward by a distance caused by the deformation of the locking block 23, and the locking portion 211 moves downward to increase the portion located in the groove 232 by providing the groove 232 to communicate with the accommodating portion 231.

In this embodiment, referring to fig. 9, the outer diameter of the locking block 23 matches the inner diameter of the sleeve 5, the locking block 23 includes at least two locking units 230 equally divided in the circumferential direction, and the adjacent locking units 230 have a certain distance in the circumferential direction, which is beneficial to deformation of the locking block 23, increases the friction coefficient between the locking block 23 and the sleeve 5, and further increases the friction force.

In this embodiment, referring to fig. 7 and 10, the bottom bracket 22 includes a bottom bracket body 220, a support ring 223 extending outward in the radial direction, a protrusion 222, and a push rod 221 extending outward in the radial direction, wherein the push rod 221 extends to the left and right and extends out of the support seat 1; the supporting seat 1 is provided with a notch 11 which is matched with the push rod 221 and is opened downwards, and the push rod 221 can move up and down in the notch 11. By arranging the notch 11, the movement direction of the push rod 221 is ensured to be only in the up-down direction, the movement direction of the push rod 221 is limited, and the movement stability of the push rod 221 is increased. The outer diameter of the support ring 223 matches the inner diameter of the sleeve 5, ensuring that the central shaft 22 moves within the sleeve 5.

In this embodiment, an end cover 51 is fixed at the lower end of the sleeve 5, a through hole extending from the central shaft 22 is formed in the end cover 51, and the push rod 221 is located at the lower end of the central shaft 22. The spring 24 is disposed between the support ring 223 and the end cap 51.

In this embodiment, referring to fig. 7 and 13, the supporting block 21 includes a supporting block main body 210 slidably located in the sleeve 5, an upper end of the supporting block main body 210 extends out of the sleeve 5, and an outwardly extending contact body 212 for contacting and supporting the door body is disposed at the upper end of the supporting block main body 210; this is advantageous in increasing the area of the contact body 212, increasing the contact area between the supporting block 21 and the door body 30, and increasing the stability of the support. The upper portion of the sleeve 5 is provided with a retaining ring 52 extending inwards, the supporting block body 210 is provided with a limiting block 213 extending outwards, and the outer diameter of the limiting block 213 is larger than the inner diameter 52 of the retaining ring.

In this embodiment, referring to fig. 3 and 4, the push plate 3 has a fixing portion 31 fixed to a side surface of the door 30, and an extending portion 32 extending forward along a lower end of the fixing portion 31, the extending portion 32 is provided with a push block 321 matching with the push rod 221 and protruding downward, and a lower end surface of the push block 321 contacts with the push rod 221; the lower end surface of the push block 321 comprises a descending section 321a, an ascending section 321c and a horizontal section 321b, wherein the descending section 321a, the ascending section 321c and the horizontal section 321b are formed by arc surfaces or inclined surfaces, when the door body 30 is closed, the descending section 321a is firstly contacted with the push rod 221, and along with the closing of the door body 30, the push rod 221 moves downwards along the descending section 321a, so that the middle shaft 22 moves downwards, and the locking block 23 and the supporting block 21 move downwards; then, the push rod 221 reaches the horizontal section 321b, the push rod 221 does not descend any more, at this time, the door body 30 reaches the upper part of the supporting block 21, and the distance between the door body 30 and the supporting block 21 is larger due to the downward movement of the supporting block 21, so that the door body 30 is convenient to close; with the closing of the door 30, the push rod 221 reaches the rising section 321c and returns upward under the action of the spring 24 until the door is completely closed. When the door body is opened, the reverse operation is performed.

In this embodiment, the push plate 3 is provided with the first locking hole 33, the support base 1 is provided with the second locking hole 12 matched with the first locking hole 33, and after the door body 30 is closed, a lock can pass through the first locking hole 33 and the second locking hole 12 to lock the door body 30, so that the safety is improved.

The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.

Claims

1. A door support component is used for preventing a door body hinged on a box body from sagging and is characterized by comprising a supporting seat fixed on the box body, a supporting body assembly which is arranged on the supporting seat and can move up and down, and a push plate which is fixed on the door body and can push the supporting body assembly to move, wherein the supporting body assembly comprises a supporting block which is coaxially arranged and matched with the lower end face of the door body, a middle shaft positioned below the supporting block, and a spring sleeved on the outer side of the middle shaft, and a push rod matched with the push plate is arranged on the middle shaft; the support body assembly further comprises an elastic locking block positioned between the supporting block and the middle shaft, the lower end of the supporting block is provided with a conical or truncated cone-shaped locking part, the locking block is provided with an accommodating part matched with the locking part, and the locking part is positioned in the accommodating part; the push plate is provided with a push block which is matched with the push rod and protrudes downwards, and the lower end face of the push block comprises a descending section, an ascending section and a horizontal section, wherein the descending section and the ascending section are formed by cambered surfaces or inclined surfaces, and the horizontal section is positioned between the descending section and the ascending section.

2. The door brace assembly of claim 1, further comprising a sleeve secured to the support base and disposed about an exterior of the support body assembly, wherein the support body assembly is movable up and down within the sleeve.

3. The door brace assembly of claim 1, wherein the locking block comprises at least two locking units equally spaced in a circumferential direction, adjacent locking units having a distance in the circumferential direction.

4. The door brace assembly of claim 1, wherein the upper end of the bottom bracket has an upwardly protruding annular projection, and the locking block has a groove that mates with the projection, the projection being located in the groove.

5. The door brace assembly of claim 2, wherein the bottom bracket includes a bottom bracket body, a radially outwardly extending support ring, and wherein an outer diameter of the support ring matches an inner diameter of the sleeve.

6. The door brace assembly of any one of claims 1-5, wherein the support base defines a downwardly opening slot that is adapted to the push rod, and the push rod moves up and down within the slot.

7. The door brace assembly of any one of claims 1 to 5, wherein the push plate has a fixing portion fixed to a side surface of the door body, and an extending portion extending forward along a lower end of the fixing portion, the extending portion being provided with the push block, a lower end surface of the push block being in contact with the push rod.

8. A refrigerator comprising a cabinet, a door body hinged to the cabinet, and the door support assembly of any one of claims 1 to 7.