CN218176986U

CN218176986U - Automatic door closer and refrigeration equipment with same

Info

Publication number: CN218176986U
Application number: CN202221434815.7U
Authority: CN
Inventors: 郑文超; 葛鹏; 杨倩倩; 孟泠民; 郑春兰
Original assignee: Qingdao Haier Special Refrigerator Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Special Refrigerator Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-12-30
Anticipated expiration: 2032-06-08

Abstract

The utility model provides an automatic door closer and a refrigeration device with the same, which comprises a fixed sleeve and an automatic door closing mechanism, wherein the fixed sleeve is provided with an inner cavity extending along the axial direction of the fixed sleeve; the automatic door closing mechanism comprises a cam seat, an elastic piece and a door body fixing piece, wherein the cam seat is arranged in the inner cavity in a sliding mode along the axial direction and is provided with a first cam surface, the elastic piece is arranged between one end, away from the first cam surface, of the cam seat and the bottom of the inner cavity, the door body fixing piece is rotatably arranged at one end, away from the elastic piece, of the cam seat and is provided with a second cam surface matched with the first cam surface and a door body fixing structure extending in the direction opposite to the second cam surface; wherein, the door body fixing structure protrudes out of the inner cavity to be fixed with the door body. The utility model provides an automatic door closer only needs to fix a body fixed knot structure AND gate body, and the door body is outside in to the main part, and the maintenance or change are convenient. In addition, after the structure is fixed with the door body, the door can be automatically closed as a door closer, and can also be used as a hinge to save the cost brought by the installation of the hinge.

Description

Automatic door closer and refrigeration equipment with same

Technical Field

The utility model relates to a refrigeration plant technical field especially relates to an automatic door closer and have its refrigeration plant.

Background

At present, an automatic door closer is usually installed in a door body of an existing refrigeration product to achieve an automatic door closing effect, and cold energy leakage caused by forgetting to close the door body or inconvenience in closing the door body is prevented, but the automatic door closer is installed in the door body and has a limited service life, and if the automatic door closer is damaged, the door body can only be replaced, so that great waste is caused; and the ultra-thin door body often can not install automatic door closer, makes automatic door closer's utilization receive the restriction.

Therefore, it is necessary to provide an automatic door closer which can be easily maintained and can be mounted on an ultra-thin door body.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic door closer and have its refrigeration plant, this automatic door closer with adaptor protrusion in the external shaft hole that forms of door, automatic door closer main part sets up outside the door, has solved the unable problem of maintaining of automatic door closer among the prior art.

In order to realize one of the above purposes of the utility model, an embodiment of the utility model provides an automatic door closer, include:

a fixed sleeve formed with an inner cavity extending in an axial direction thereof; an automatic door closing mechanism disposed in the inner cavity of the fixed sleeve and including: the cam seat is arranged in the inner cavity in an axial sliding mode and provided with a first cam surface; the elastic piece is arranged between one end of the cam seat, which is far away from the first cam surface, and the bottom of the inner cavity; the door body fixing piece is rotatably arranged at one end of the cam seat, which is far away from the elastic piece, and is provided with a second cam surface matched with the first cam surface and a door body fixing structure extending back to the direction of the second cam surface; the door body fixing structure extends out of the inner cavity to be fixed with the door body.

As a further improvement of an embodiment of the present invention, the cam seat is formed with an axial hole along the axial direction thereof, the door body fixing member is formed with a rotating shaft along the axial direction thereof, and the rotating shaft is disposed in the axial hole and rotated with the center of the rotating shaft as an axis.

As a further improvement of an embodiment of the present invention, the first cam surface is formed by the cam seat being away from one end of the elastic member and being recessed toward the elastic member, and the second cam surface is formed around the outer side of the rotating shaft.

As a further improvement of an embodiment of the present invention, the automatic door closing mechanism further includes a plug fixed in the inner cavity of the fixing sleeve, and the elastic member is kept away from one end of the cam seat.

As an embodiment of the present invention, the fixing sleeve comprises a through hole symmetrically formed in one end of the door fixing structure, and a strip-shaped member passing through the through hole symmetrically formed in the door fixing structure, wherein the end cap is fixed in the fixing sleeve by matching with the elastic member through the strip-shaped member.

As a further improvement of an embodiment of the present invention, the cam seat outside is formed with a plurality of sand grips that set up along its axial, the fixed sleeve inboard be provided with a plurality of concave strip of sand grip matched with, the cam seat is in the sand grip with under the cooperation of concave strip, follow cam seat axial motion, wherein, N is for being greater than zero integer.

As an embodiment of the utility model provides a further improvement, door body mounting still include the protrusion in the pivot is close to the first lug of door body fixed knot structure one end, fixed sleeve is still including setting up in being close to door body fixed knot structure one end to the second lug that the interior intracavity is protruding to be formed, first lug with the mutual butt of second lug is in order to prevent automatic door closing mechanism follows slippage in the fixed sleeve.

As a further improvement of an embodiment of the present invention, the fixing sleeve is close to one end of the door body fixing structure and protrudes to the outside to form a first fixing portion, so that the automatic door closer is fixed.

The utility model relates to an embodiment still provides a refrigeration plant, including box, the door body and automatic door closer, automatic door closer is aforementioned automatic door closer, and automatic door closer is fixed in on the box through the fixed sleeve, door body fixed knot constructs mutually fixedly with the door body.

Furthermore, the door body is provided with a reinforcing part, the reinforcing part comprises a second fixing part and a bulge part protruding from the second fixing part, the second fixing part is L-shaped and is arranged at the corner part of the door body, the bulge part forms a groove, the shape of the groove is matched with that of the door body fixing structure, and the door body fixing structure is arranged in the groove to drive the door body fixing part to rotate when the door body rotates.

One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

the utility model discloses embodiment provides an automatic door closer only needs to fix the door body fixed knot structure AND gate body, and the external portion of door is arranged in to the main part, and the maintenance or change are convenient, and this automatic door closer also can be used to the ultra-thin door body. In addition, after the structure is coaxially arranged and fixed with the rotating shaft of the door body, the door can be automatically closed as a door closer, and can also be used as a hinge for connecting the door body and the box body, so that the cost brought by the installation of the hinge is saved.

Drawings

Fig. 1 is a schematic structural diagram of a refrigeration apparatus in an embodiment of the present invention.

Fig. 2 is a top view of the refrigeration unit of fig. 1.

Fig. 3 is an enlarged view of a point a in fig. 1.

Fig. 4 is a schematic cross-sectional view taken along line B-B in fig. 2.

Fig. 5 is an enlarged view C of fig. 4.

Fig. 6 is a schematic view of the cam housing of fig. 5.

Fig. 7 is a schematic view of the structure of the door fixing member of fig. 5.

Fig. 8 is a structural schematic view of the fixing sleeve in fig. 5.

10. A box body; 20. a door body; 30. an automatic door closer; 1. fixing the sleeve; 11. an inner cavity; 12. a first fixed part; 121. mounting holes; 13. a through hole; 14. an elongated member; 15. concave strips; 16. a limiting hole; 2. a cam seat; 21. a first cam surface; 22. a shaft hole; 23. a convex strip; 3. an elastic member; 4. a door body fixing part; 41. a door body fixing structure; 42. a rotating shaft; 43. a cam block; 431. a second cam surface; 5. A plug; 6. a gasket; 7. a reinforcement; 71. a second fixed part; 72. a boss portion; 721. a groove; 8. A hinge plate.

Detailed Description

The present invention will be described in detail below with reference to embodiments shown in the drawings. However, these embodiments do not limit the present invention, and structural, method, or functional changes that can be made by those skilled in the art according to these embodiments are all included in the scope of the present invention.

Terms used herein such as "upper," "above," "lower," "below," and the like refer to relative spatial positions in order to describe one element or feature's relationship to another element or feature as illustrated in the figures for ease of description. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Also, it should be understood that, although the terms first, second, etc. may be used herein to describe various elements or structures, these described elements should not be limited by these terms. These terms are only used to distinguish these descriptive objects from one another. For example, the first cam surface may be referred to as the second cam surface, and similarly the second cam surface may also be referred to as the first cam surface, without departing from the scope of the present application.

The embodiment of the utility model provides an automatic door closer 30 for refrigeration plant, wherein, as shown in fig. 1-2, refrigeration plant includes box 10, the door body 20 and automatic door closer 30, and automatic door closer 30 is fixed in box 10 and the door body 20 through screw or other common modes, thereby, the utility model also provides a refrigeration plant who has aforementioned automatic door closer 30.

As shown in fig. 3 to 8, the automatic door closer 30 includes a fixed sleeve 1 formed with an inner cavity 11 extending in an axial direction thereof, and an automatic door closing mechanism provided in the inner cavity 11 of the fixed sleeve 1. The automatic door closing mechanism comprises a cam seat 2, an elastic piece 3 and a door body fixing piece 4; the cam seat 2 is arranged in the inner cavity 11 in an axial sliding manner and is provided with a first cam surface 21; the elastic piece 3 is arranged between one end of the cam seat 2 departing from the first cam surface 21 and the bottom of the inner cavity 11; the door body fixing part 4 is rotatably arranged at one end of the cam seat 2, which is far away from the elastic piece 3, and is provided with a second cam surface 431 matched with the first cam surface 21 and a door body fixing structure 41 extending in a direction opposite to the second cam surface 431; the door body fixing structure 41 protrudes out of the inner cavity 11 to be fixed with the door body 20.

When the automatic door closing mechanism is at an initial position, the first cam surface 21 and the second cam surface 431 are mutually embedded, when the door body fixing piece 4 is forced to rotate, the second cam surface 431 moves along the first cam surface 21 to enable the cam seat 2 to move in a direction away from the second cam surface 431, and the cam seat 2 compresses the elastic piece 3; when the door body fixing member 4 is released, the cam holder 2 moves in a direction approaching the second cam surface 431 by the resilient force of the elastic member 3, so that the door body fixing member 4 reversely rotates to return to the initial position.

The automatic door closer 30 provided by the utility model only needs to fix the door body fixing structure 41 which extends out of the inner cavity 11 with the door body 20, thereby being not only suitable for common door bodies, but also being capable of using ultra-thin door bodies; the main body part of the door closer is arranged outside the door body 20, and the maintenance or the replacement is convenient. In addition, after the structure is coaxially arranged and fixed with the rotating shaft of the door body 20, the door can be automatically closed as a door closer, and can also be used as a hinge for connecting the door body 20 and the box body 10, so that the cost caused by installation of the hinge is saved.

As shown in fig. 5, the fixing sleeve 1 is provided with a first fixing portion 12 formed by protruding outward along one end of the fixing sleeve 1 close to the door fixing structure 41, and the automatic door closer 30 is fixed to the box body 10 by the first fixing portion 12 using screws or other common methods, in this embodiment, the first fixing portion 12 is provided with a mounting hole 121, a hinge plate 8 is fixed to the box body 10, and the fixing sleeve 1 is fixed to the hinge plate 8 by screws through the mounting hole 121, so that the automatic door closer 30 is fixed to the box body 10. Of course, the automatic door closer 30 may be directly fixed to the door body 20 without being fixed by the hinge plate 8.

In this embodiment the inner cavity 11 of the fixation sleeve 1 runs through its length direction, i.e. the inner cavity 11 has no bottom or top wall. The fixing sleeve 1 further comprises through holes 13 symmetrically arranged at one end of the fixing sleeve 1 far away from the door body fixing structure 41, and elongated members 14 penetrating through the symmetrically arranged through holes 13. The automatic door closing mechanism further comprises a plug 5, one end of the plug 5 is abutted to one end, far away from the cam seat 2, of the elastic piece 3, one end of the plug 5 is abutted to the long strip-shaped component 14, and the elastic piece 3 pushes the plug 5 to be abutted to the long strip-shaped component 14 under the action of elastic force, so that the plug 5 is fixed. The inner cavity 11 of the fixed sleeve 1 is penetrated and the plug 5 is fixed by the strip-shaped component 14, so that when the automatic door closer 30 is damaged, the strip-shaped component 14 can be taken out of the through hole 13 without disassembling the whole automatic door closer 30, and the automatic door closer mechanism can be taken out of the fixed sleeve 1 and replaced. The elongated member 14 may be a screw or a screw and nut cooperating to prevent a single screw from slipping off the side of the through hole 13, but the elongated member 14 is not limited thereto.

Preferably, two groups of through holes 13 are symmetrically arranged, so that the plug 5 is more stable in the inner cavity 11, and the whole structure of the automatic door closing mechanism is more stable.

Preferably, the shape of the end of the plug 5 contacting the elongated member 14 matches the shape of the inner cavity 11 of the fixing sleeve 1, so as to prevent the plug 5 from being unstable in the inner cavity 11 and being unable to fix the plug 5, and meanwhile, when the automatic door closer 30 is installed, the plug 5 matching the shape of the inner cavity 11 is more convenient to install.

The first cam surface 21 of the cam seat 2 is formed by the way that one end of the cam seat 2, which is far away from the elastic part 3, is recessed towards the inner side of the cam seat 2 and towards the direction of the elastic part 3, the cam seat 2 further comprises a shaft hole 22 formed along the central axis of the cam seat and N convex strips 23 formed along the axial direction of the cam seat 2 and on the outer side of the cam seat, N concave strips 15 matched with the convex strips 23 are arranged on the inner side of the fixing sleeve 1, the cam seat 2 moves along the axial direction of the cam seat 2 under the matching of the convex strips 23 and the concave strips 15, and N is an integer greater than zero. In this embodiment, the number of the convex strips 23 and the concave strips 15 is 4, and the convex strips and the concave strips are respectively arranged on the cam base 2 and the fixed sleeve 1 at intervals. However, the utility model discloses the number of sand grip 23 and concave strip 15 is not only limited to 4, can be arbitrary number, only need the two can cooperate make cam seat 2 along its axial motion can.

The door body fixing member 4 further includes a rotating shaft 42 formed along a central axis thereof and connected to the door body fixing structure 41, and a cam block 43 protruding from the rotating shaft 42 and close to one end of the door body fixing structure 41, wherein a second cam surface 431 is formed on the cam block 43, the rotating shaft 42 is disposed in the shaft hole 22 of the cam base 2 and rotates with the center of the rotating shaft 42 as an axis, and the cam base 2 is far away from or close to the second cam surface 431 along a length direction of the rotating shaft 42, so that the cam base 2, the door body fixing member 4 and the fixing sleeve 1 are coaxially disposed.

Further, the fixing sleeve 1 further comprises a limiting hole 16 arranged at one end close to the door fixing structure 41, and the inner diameter of the limiting hole 16 is larger than that of the door fixing structure 41 and smaller than that of the cam block 43, so that the door fixing structure 41 extends out of the fixing sleeve 1, and the automatic door closing mechanism is prevented from slipping out of the fixing sleeve 1.

Further, be provided with gasket 6 between door body mounting 4 and spacing hole 16, gasket 6 is used for reducing the friction between door body mounting 4 and the fixed sleeve 1, helps setting up door body mounting 4 and fixed sleeve 1 coaxial simultaneously, avoids when the installation to produce the error and leads to the two and coaxial setting and the whole unstable condition of automatic door closer 30 takes place in the use.

Furthermore, the rotating shaft 42 and the plug 5 of the door body fixing piece 4 are both of a hollow structure, the door body fixing piece 4 is in a rotating process, the gasket 6 enables the fixing sleeve 1 and the door body fixing piece 4 to be in tight contact, a gap between the fixing sleeve 1 and the door body fixing piece 4 is small, meanwhile, the shape of one end of the plug 5 is matched with the shape of the inner cavity 11 of the fixing sleeve 1, the contact between the fixing sleeve 1 and the door body fixing piece 4 is also tight, when the cam seat 2 moves away from the second cam surface 431, air in the inner cavity 11 cannot be exhausted in time, the cam seat 2 can compress air between the cam seat 2 and the plug 5, high pressure is generated, the door body fixing piece 4 is difficult to rotate, the rotating shaft 42 and the plug 5 of the hollow structure can exhaust air between the cam seat 2 and the plug 5 out of the automatic inner cavity 11 when the cam seat 2 moves, and the use of the automatic door closer 30 is facilitated.

As shown in fig. 5, in the embodiment, the door body 20 includes the reinforcement 7, the reinforcement 7 includes a second fixing portion 71 fixedly connected to the door body 20 and a protrusion 72 connected to the second fixing portion 71, the second fixing portion 71 is L-shaped and fixed along a corner of the door body 20, the protrusion 72 extends from the door body 20 and is formed with a groove 721 in a quadrilateral shape, the door fixing structure 41 of the door fixing member 4 and the groove 721 of the protrusion 72 are configured in a quadrilateral shape, when the automatic door closer 30 is installed, the door fixing structure 41 first extends into the groove 721, and then the first fixing portion 12 and the hinge plate 8 are fixed by screws.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. An automatic door closer, comprising:

a fixed sleeve formed with an inner cavity extending in an axial direction thereof;

an automatic door closing mechanism disposed in the inner cavity of the fixed sleeve and including:

the cam seat is arranged in the inner cavity in an axial sliding mode and is provided with a first cam surface;

the elastic piece is arranged between one end of the cam seat, which is far away from the first cam surface, and the bottom of the inner cavity;

the door body fixing piece is rotatably arranged at one end of the cam seat, which is far away from the elastic piece, and is provided with a second cam surface matched with the first cam surface and a door body fixing structure extending back to the direction of the second cam surface;

the door body fixing structure protrudes out of the inner cavity to be fixed with the door body.

2. The automatic door closer according to claim 1, wherein the cam seat is formed with a shaft hole along an axial direction thereof, and the door body fixing member is formed with a rotating shaft along the axial direction thereof, the rotating shaft being disposed in the shaft hole and rotating about a center of the rotating shaft.

3. The automatic door closer of claim 2, wherein the first cam surface is formed by an end of the cam seat away from the elastic member and is recessed toward the elastic member, and the second cam surface is formed around an outer side of the rotation shaft.

4. The automatic door closer of claim 1, further comprising a plug fixed within the inner cavity of the fixed sleeve and abutting against an end of the elastic member remote from the cam seat.

5. The automatic door closer of claim 4, wherein the fixing sleeve comprises through holes symmetrically formed at one end far away from the door fixing structure, and an elongated member passing through the symmetrically formed through holes, and the plug is fixed in the fixing sleeve by the elongated member and the elastic member matching with each other.

6. The automatic door closer according to claim 1, wherein N convex strips are formed on the outer side of the cam seat in the axial direction, N concave strips are formed on the inner side of the fixing sleeve in cooperation with the convex strips, and the cam seat moves in the axial direction of the cam seat under the cooperation of the convex strips and the concave strips, wherein N is an integer greater than zero.

7. The automatic door closer of claim 2, wherein the door mount further comprises a first protrusion protruding from the shaft and adjacent to an end of the door mount, the mount sleeve further comprises a second protrusion protruding into the inner cavity adjacent to an end of the door mount, and the first protrusion abuts against the second protrusion to prevent the automatic door closer from slipping out of the mount sleeve.

8. The automatic door closer according to claim 1, wherein a first fixing portion protrudes outward from an end of the fixing sleeve adjacent to the door fixing structure to fix the automatic door closer.

9. The refrigeration equipment comprises a box body, a door body and an automatic door closer, and is characterized in that the automatic door closer is the automatic door closer according to any one of claims 1 to 8, the automatic door closer is fixed on the box body through a fixing sleeve, and a door body fixing structure is fixed with the door body.

10. The refrigeration equipment as claimed in claim 9, wherein the door body is provided with a reinforcing member, the reinforcing member includes a second fixing portion and a protruding portion protruding from the second fixing portion, the second fixing portion is L-shaped and is disposed at a corner of the door body, the protruding portion forms a groove, the groove is matched with the shape of the door body fixing structure, and the door body fixing structure is disposed in the groove so that the door body fixing member is driven to rotate when the door body rotates.