CN108088163B

CN108088163B - Locking stop device, box body assembly and refrigerator

Info

Publication number: CN108088163B
Application number: CN201711286487.4A
Authority: CN
Inventors: 郑学载; 江康宁
Original assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Current assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Priority date: 2017-12-07
Filing date: 2017-12-07
Publication date: 2019-12-20
Anticipated expiration: 2037-12-07
Also published as: CN108088163A

Abstract

The invention discloses a locking limiting device, a box body assembly and a refrigerator, wherein the locking limiting device comprises an installation seat, a shaft body arranged in the installation seat and an elastic part fixedly connected to the installation seat, a first stop surface and a second stop surface are arranged on the side peripheral surface of the shaft body at intervals, the elastic part is provided with a bent part in matched contact with the side peripheral surface of the shaft body, and the installation seat can rotate around the shaft body so as to drive the bent part to move from a position where elastic pressure is applied to the first stop surface to a position where elastic pressure is applied to the second stop surface. The problem that the influence of tolerance is big that leads to when this locking stop device has eliminated backstop dog among the prior art and independently installs with the auto-lock structure, and in addition, this locking stop device can be applied to the locking and the spacing of the box subassembly that has the box and a body, improves the leakproofness and the reliability of closing the door, prevents effectively that air conditioning from revealing in the crack clearance.

Description

Locking stop device, box body assembly and refrigerator

Technical Field

The invention relates to a locking device, in particular to a locking limiting device, a box body assembly comprising the locking limiting device and a refrigerator comprising the box body assembly.

Background

The refrigerator is a refrigeration device or a household appliance with wide application, and is also a household appliance with wide application. In general, it is a general term for various types of refrigerators (cabinets) used in industrial and commercial, medical and health and research sites and at home. The refrigerator is generally referred to as a household refrigerator, which is a refrigeration device that uses electric energy as a motive power and maintains the interior of the refrigerator at a low temperature through the operation and the cooperation of different refrigeration machines.

Generally, a refrigerator is provided with a door and a refrigerator body connected together by a hinge, and the door rotates around the hinge axis to open or close the door. The traditional refrigerator is provided with the stop dog and the self-locking structure which are independently installed respectively at the position of the door body and the hinge, the stop dog is used for stopping the door body when the door body is opened to a certain degree to limit the door body, so that the door body is prevented from being excessively opened, and the self-locking structure can play a role in preventing the door body from bouncing when the door is closed.

The above-mentioned backstop dog and self-locking structure's defect lies in: the stop dog and the self-locking structure are separately assembled, and are greatly influenced by tolerance; the self-locking device only has the function of preventing the door from bouncing, cold air still leaks from the door seal gap, and the reliability and the sealing performance are poor when the door is closed.

In view of the above, there is a need for a novel locking and limiting device, which is intended to solve all or at least part of the above technical drawbacks.

Disclosure of Invention

The invention mainly aims to provide a locking limiting device, which aims to solve the technical problems that a stop dog and a self-locking structure in the prior art are greatly influenced by tolerance and poor in reliability and sealing performance when being applied to a refrigerator to close a door.

In order to achieve the above object, the present invention provides a locking and limiting device, wherein the locking and limiting device includes a mounting seat, a shaft body installed in the mounting seat, and an elastic member fixedly connected to the mounting seat, a first stop surface and a second stop surface are provided at an interval on a side circumferential surface of the shaft body, the elastic member has a bending portion in fit contact with the side circumferential surface of the shaft body, and the mounting seat can rotate around the shaft body to drive the bending portion to move from a position where the bending portion elastically presses on the first stop surface to a position where the bending portion elastically presses on the second stop surface.

Preferably, the mounting seat is provided with a mounting post, and the elastic member further has a winding portion wound around the mounting post.

Preferably, the mounting seat is provided with a side shell, an end cover is arranged on the side shell, a containing space is enclosed by the mounting seat, the side shell and the end cover, and a part of the shaft body, the elastic element and the mounting column are contained in the containing space.

Preferably, the shaft body comprises a first section, a second section and a third section which are sequentially connected, the first stop surface and the second stop surface are located at the first section, the bending part is in contact fit with the lateral peripheral surface of the first section, the second section is a flange part which protrudes radially relative to the first section and the third section, and the third section protrudes out of the accommodating space and is used for fixing the shaft body.

Preferably, the cross-section of the third section is polygonal.

Preferably, the mounting seat is provided with a limiting hole, the third section passes through the limiting hole and protrudes out of the accommodating space, and the flange part contacts and stops the hole wall of the limiting hole.

Preferably, a first protruding portion and a second protruding portion are arranged on the lateral peripheral surface of the shaft body, the first stopping surface is located on the first protruding portion, the second stopping surface is located on the second protruding portion, the first stopping surface is an arc surface which is bent around the axis of the shaft body, and the second stopping surface is a plane parallel to the axis of the shaft body.

The invention also provides a box body assembly, which comprises a box body, a hinge fixedly connected to the box body, a door body hinged to the box body through the hinge, and the locking limiting device, wherein the mounting seat is fixedly connected to the door body, the shaft body is fixedly connected to the hinge, the bending part elastically presses the first stop surface, the door body closes the box body, the bending part elastically presses the first stop surface, the door body presses the box body through elastic force, and the bending part elastically presses the second stop surface, so that the door body is opened and limited.

Preferably, a part of the locking and limiting device is installed inside the door body.

The invention also provides a refrigerator which comprises a refrigerator body and a refrigerator door, wherein the refrigerator is provided with the refrigerator body assembly, the refrigerator body is the refrigerator body, and the door body is the refrigerator door.

In the above technical solution of the present invention, since the first stop surface and the second stop surface are disposed at an interval on the side circumferential surface of the shaft body of the locking and limiting device, the elastic member has a bending portion in fit contact with the side circumferential surface of the shaft body, the mounting seat can rotate around the shaft body to drive the bending portion to move from a position where the elastic member elastically presses the first stop surface to a position where the elastic member elastically presses the second stop surface, the first stop surface and the second stop surface of the shaft body in the locking and limiting device can cooperate with the elastic member to complete the locking of the door body or the limiting when the door body is opened to a predetermined position, thereby eliminating the problem of large influence of tolerance when the stop dog and the self-locking structure are independently mounted in the prior art, and in addition, the locking and limiting device can be applied to the locking and limiting of a box assembly having a box body and a door body, through elastic component to shaft body elasticity exert pressure and finally convert the power that makes the door body press to the box, improved the leakproofness and the reliability of closing the door, especially when this box subassembly was used on the refrigerator, can also effectively prevent that air conditioning from revealing in the crack clearance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a perspective view of a door body according to an embodiment of the present invention;

FIG. 2 is a perspective view of a locking stop device according to an embodiment of the present invention;

FIG. 3 is a first position top view of the locking and limiting device of the embodiment of the present invention;

fig. 4 is a second position top view of the locking and limiting device of the embodiment of the invention.

The reference numbers illustrate:

the implementation, functional features and advantages of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

It should be noted that all the directional indicators (such as the upper and lower … …) in the embodiment of the present invention are only used to explain the relative position relationship, movement, etc. of the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

Moreover, the technical solutions in the embodiments of the present invention may be combined with each other, but it is necessary to be able to be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

Referring to fig. 1 and 2, according to an aspect of the present invention, there is provided a case assembly, wherein the case assembly includes a locking position-limiting device, a case, a hinge fixedly connected (e.g. bolted) to the case, and a door 1 hinged to the case by the hinge, the locking position-limiting device includes a mounting base 2, a shaft body 100 mounted in the mounting base 2, and an elastic member 200 fixedly connected to the mounting base 2, a first stop surface 101 and a second stop surface 102 are spaced apart from each other on a side circumferential surface of the shaft body 100, the elastic member 200 has a bending portion 201 in cooperative contact with the side circumferential surface of the shaft body 100, the mounting base 2 can rotate around the shaft body 100 to drive the bending portion 201 to move from a position where the bending portion applies elastic force to the first stop surface 101 (at this time, the bending portion 201 is in stop contact with the first stop surface 101) to a position where the bending portion 201 applies elastic force to the second stop surface 102 (at this time, the bending, wherein, mount pad 2 fixed connection is in door body 1, and axis body 100 fixed connection is in the hinge (for example the joint is in the recess of hinge), and when kink 201 elasticity was applyed pressure in first backstop face 101, door body 1 closed the box, and kink 201 elasticity applys pressure in the elastic force of first backstop face 101 makes door body 1 press to the box, and when kink 201 elasticity was applyed pressure in second backstop face 102, door body 1 was in and is opened and by spacing position. Of course, the locking and limiting device also belongs to the device which is separately provided and protected by the invention.

As described above, the first stop surface 101 and the second stop surface 102 are disposed on the side circumferential surface of the shaft 100 at an interval, so as to drive the bending portion 201 to move from the position where the bending portion 201 elastically presses the first stop surface 101 to the position where the bending portion 201 elastically presses the second stop surface 102, when the bending portion 201 elastically presses the first stop surface 101, the door 1 closes the box, and the elastic force of the bending portion 201 elastically pressing the first stop surface 101 presses the door 1 against the box (since the shaft 100 is mounted on the mount base 2 and the mount base 2 is fixedly connected to the door 1, the elastic force of the bending portion 201 elastically pressing the first stop surface 101 is transmitted to the door 1 via the mount base 2 and is converted into a force pressing the door 1 against the box), when the bending portion 201 elastically presses the second stop surface 102, the door 1 is at the position where the door 1 is opened and limited, and thus, the self-locking when the door 1 is closed and the limiting when the door is opened are both completed through the cooperation between the shaft 100 and the elastic member 200, in addition, when the first stopping surface 101 is elastically pressed by the bending part 201, the door body 1 closes the refrigerator body, and the door body 1 is pressed towards the refrigerator body by the elastic force of the bending part 201 elastically pressing the first stopping surface 101, so that the door body 1 is tightly contacted with the refrigerator body when the door body 1 closes the refrigerator body, the sealing performance and the reliability of closing the door are improved, and especially when the refrigerator body assembly is applied to a refrigerator, cold air can be effectively prevented from leaking from a gap between the door seams.

According to the embodiment of the present invention, the elastic element 200 may be a spring plate, a spring rib, or the like, the mounting base 2 is provided with the mounting post 3, the elastic element 200 further has a winding portion 202, the winding portion 202 and the bending portion 201 are respectively located at two ends of the elastic element 200, the winding portion 202 is wound on the mounting post 3 to fixedly connect the elastic element 200 to the mounting post 3, the mounting base 2 is provided with a side housing 4, the side housing 4 is provided with an end cap 5, the mounting base 2, the side housing 4 and the end cap 5 enclose a receiving space, a portion of the shaft body 100, the elastic element 200 and the mounting post 3 are received in the receiving space, the shaft body 100 includes a first section 103, a second section 104 and a third section 105 which are connected in sequence, the first section 103, the second section 104 and the third section 105 are arranged in sequence along the axial direction of the shaft body 100, the first stop surface 101 and the second stop surface 102 are located at the first section 103, the bending portion 201 is in, the second section 104 is a flange portion protruding radially relative to the first section 103 and the third section 105, the third section 105 protrudes out of the accommodating space and is used for fixing the shaft body 100, for example, the third section 105 can be inserted into a fixing groove of a related component (for example, a groove of the hinge) so as to fix the shaft body 100, therefore, in order to make the third section 105 protrude out of the accommodating space and the first section 103 and the second section 104 do not fall out of the accommodating space, the second section 104 is provided with a flange portion protruding radially, an opening allowing the third section 105 to pass through but not allowing the second section to pass through is formed on the mounting base 2, so that the first section 103 and the second section 104 can be ensured not fall out of the accommodating space, specifically, the mounting base 2 is provided with a limiting hole (not shown), the third section 105 passes through the limiting hole and protrudes out of the accommodating space, and the flange portion contacts and stops the. Further, the third section 105 may have a polygonal, e.g., rectangular, cross-section, so that insertion into a corresponding groove having a polygonal cross-section may prevent the shaft body 100 from rotating about its own axis.

According to an embodiment of the present invention, the side circumferential surface of the shaft body 100 has a first protruding portion and a second protruding portion, the first stop surface 101 is located at the first protruding portion, the second stop surface 102 is located at the second protruding portion, the first stop surface 101 is an arc surface that is curved around the axis of the shaft body 100, and the second stop surface 102 is a plane that is parallel to the axis of the shaft body 100. Since the door body 1 closes the box body when the bending portion 201 elastically presses the first stop surface 101, the first stop surface 101 is technically required to only lock the door body 1 to a certain extent, and at the same time, the door body 1 can be ensured to be normally opened, so that the first stop surface 101 is a cambered surface, when the door body 1 is opened with a large force, the bending portion 201 can leave the cambered surface and continue to run along the side circumferential surface of the shaft body 100 under the smooth guidance of the cambered surface (the first stop surface 101) and finally reach the second stop surface 102, since the door body 1 is at the position where the door body 1 is opened and limited when the bending portion 201 elastically presses the second stop surface 102, the second stop surface 102 is technically required to effectively limit the door body 1, specifically, when the bending portion 201 reaches the second stop surface 102 (even if a large force is applied to the door body 1), the second stop surface 102 is a plane, so that the bending portion 201 and the second stop surface 102 can be absolutely stopped with each other, that is, when a large force is applied to the door body 1 in the opening direction, the bent portion 201 does not come off the second stop surface 102. Thereby finally ensuring that the door body 1 is limited at the required maximum opening position.

For the sake of understanding, fig. 3 shows the bending portion 201 at the position where the bending portion 201 elastically presses the first stop surface 101, fig. 4 shows the bending portion 201 at the position where the bending portion 201 elastically presses the second stop surface 102, and according to the illustration, the mounting base 2 in fig. 3 rotates counterclockwise by a certain angle to reach the position of fig. 4, the elastic element 200, the mounting post 3, and the side housing 4 rotate integrally with the mounting base 2, and the shaft body 100 remains stationary due to being fixed to the hinge. Since the door body 1 is fixedly connected with the mounting seat 2, fig. 3 and 4 can also be understood as the door body 1 rotates and opens to the limited maximum opening position (fig. 4) from the closing time (fig. 3).

According to the preferred embodiment of the present invention, a part of the locking and limiting device is installed inside the door body 1, for example, the side casing 4 and the end cover 5 can be hidden inside the door body 1, so as to save space, but the present invention is not limited thereto, and it is also possible that the locking and limiting device is installed inside the door body 1 as a whole on the premise that the technology is feasible and the locking and limiting device can be guaranteed to achieve its function, and such a scheme will fall into the protection scope of the present invention.

According to another aspect of the invention, the refrigerator comprises a refrigerator body and a refrigerator door, wherein the refrigerator is provided with the refrigerator body assembly, the refrigerator body is a refrigerator body, the door body 1 is a refrigerator door, and the refrigerator door can be a refrigerator door corresponding to an upper refrigerating chamber, a refrigerator door corresponding to a lower refrigerating chamber, or even a door corresponding to any other place with a door structure of the refrigerator, as long as the refrigerator body assembly can be matched. The locking limiting device is preferably arranged at the lower end of the refrigerator door, and the lower end of the refrigerator door is also provided with a handle hole 6. The specific structure of the box body assembly refers to the above embodiments, and since the refrigerator adopts all the technical solutions of the box body assemblies of all the above embodiments, the refrigerator at least has all the beneficial effects brought by the box body assembly of the technical solutions of the above embodiments, and details are not repeated herein.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a locking stop device, its characterized in that, locking stop device includes the mount pad, installs axis body, fixed connection in the mount pad in the elastic component of mount pad, the interval is provided with first backstop face and second backstop face on the side global of axis body, the elastic component have with the kink of the side global cooperation contact of axis body, the mount pad can wind the axis body rotates, in order to drive the kink from elasticity exert pressure in the position motion of first backstop face to elasticity exert pressure in the position of second backstop face.

2. The device of claim 1, wherein the mounting seat is provided with a mounting post, and the resilient member further comprises a winding portion that winds around the mounting post.

3. The lock stop of claim 2 wherein the mounting housing has a side housing with an end cap, the mounting housing, side housing and end cap defining a receiving space, a portion of the shaft, the resilient member and the mounting post being received in the receiving space.

4. The locking and limiting device of claim 3, wherein the shaft body comprises a first section, a second section and a third section which are sequentially connected, the first stop surface and the second stop surface are located at the first section, the bending part is in contact fit with the lateral periphery of the first section, the second section is a flange part which is radially protruded relative to the first section and the third section, and the third section is protruded out of the accommodating space and used for fixing the shaft body.

5. The lock stop of claim 4 wherein the third segment is polygonal in cross-section.

6. The locking and limiting device of claim 4, wherein the mounting base is provided with a limiting hole, the third section passes through the limiting hole and protrudes out of the accommodating space, and the flange portion contacts and stops against a hole wall of the limiting hole.

7. The locking and limiting device of any one of claims 1 to 6, wherein the lateral periphery of the shaft body has a first protrusion and a second protrusion, the first stop surface is located on the first protrusion, the second stop surface is located on the second protrusion, the first stop surface is an arc surface that is curved around the axis of the shaft body, and the second stop surface is a plane that is parallel to the axis of the shaft body.

8. A box body assembly is characterized by comprising a box body, a hinge fixedly connected to the box body, a door body hinged to the box body through the hinge, and a locking limiting device according to any one of claims 1 to 7, wherein the installation seat is fixedly connected to the door body, the shaft body is fixedly connected to the hinge, the bending part elastically exerts pressure on the first stopping surface, the door body closes the box body, the elastic force of the bending part elastically exerting pressure on the first stopping surface enables the door body to press towards the box body, and the bending part elastically exerts pressure on the second stopping surface, and the door body is located at an opening position and is limited.

9. The cabinet assembly according to claim 8, wherein a portion of the latch stop is mounted within the door.

10. A refrigerator comprising a refrigerator cabinet and a refrigerator door, wherein the refrigerator is provided with the cabinet assembly according to claim 8 or 9, the cabinet is the refrigerator cabinet, and the door is the refrigerator door.