阅读说明：本技术 一种自动关门装置及展示柜 (Automatic door closing device and display cabinet ) 是由 王日波 李政芳 万鹏 高龙 宋鲜霞 王莉云 刘飞 孙佳友 孙业平 谷新兵 赵淑娟 于 2020-07-21 设计创作，主要内容包括：本发明公开了一种自动关门装置,包括铰链,铰链设置于箱体下端；转动组件,其设置于门体上；第一调节件,其固定设置于铰链上；且第一调节件上设置有第一凸台,第一凸台的两侧端面均为第一斜面；第二调节件,其固定于门体底端且与转动组件转动连接；且第二调节件上设置有第二凸台,第二凸台的两侧端面均为第二斜面；其中,第一凸台与第二凸台相对应设置,且第一凸台与第二凸台的结构相配合；使得第二调节件能够沿着第一凸台的斜面自动且稳定的向下滑动至门体关闭；当门体完全关闭时,使得第一调节件与第二调节件能够卡合在一起。解决了现有技术中自动关门装置无法使得门体同时实现小角度和大角度开门后自动且稳定关闭的技术问题。(The invention discloses an automatic door closing device, which comprises a hinge, wherein the hinge is arranged at the lower end of a box body; the rotating assembly is arranged on the door body; the first adjusting piece is fixedly arranged on the hinge; a first boss is arranged on the first adjusting piece, and the end surfaces of two sides of the first boss are both first inclined surfaces; the second adjusting piece is fixed at the bottom end of the door body and is rotationally connected with the rotating assembly; a second boss is arranged on the second adjusting piece, and the end surfaces of two sides of the second boss are both second inclined surfaces; the first boss and the second boss are arranged correspondingly, and the structures of the first boss and the second boss are matched; the second adjusting piece can automatically and stably slide downwards along the inclined plane of the first boss until the door body is closed; when the door body is completely closed, the first adjusting piece and the second adjusting piece can be clamped together. The technical problem of automatic and stable closing after the automatic door closing device can't make the door body realize the low angle simultaneously and wide-angle and open the door among the prior art is solved.)

1. The utility model provides an automatic door closing device installs between show cupboard box and the door body, its characterized in that includes:

the hinge is arranged at the lower end of the box body;

the rotating assembly is arranged on the door body, and the bottom end of the rotating assembly is rotatably connected with the hinge;

the first adjusting piece is fixedly arranged on the hinge; a first boss is arranged on the first adjusting piece, and the end faces of two sides of the first boss are both first inclined planes;

the second adjusting piece is fixed at the bottom end of the door body and is rotationally connected with the rotating assembly; a second boss is arranged on the second adjusting piece, and the end faces of two sides of the second boss are both second inclined planes;

the first boss and the second boss are arranged correspondingly, and the structures of the first boss and the second boss are matched; the second adjusting piece can automatically and stably slide downwards along the first inclined plane of the first boss until the door body is closed; when the door body is completely closed, the first adjusting piece and the second adjusting piece can be clamped together.

2. The automatic door closing apparatus according to claim 1,

the first adjusting piece comprises a first fixed end and a first adjusting end, the first fixed end is fixed on the hinge, and the first adjusting end is provided with the first boss;

the second regulating part comprises a second fixed end and a second regulating end, the second fixed end is fixed on the door body, and the second regulating end is provided with the second boss.

3. Automatic door closing device according to claim 1 or 2,

the number of the first bosses is two, and the two first bosses are arranged oppositely; two opposite first clamping grooves are formed between the two first bosses;

the number of the second bosses is two, and the two second bosses are oppositely arranged; two opposite second clamping grooves are formed between the two second bosses;

the structure of the first clamping groove is matched with that of the second boss, and the structure of the second clamping groove is matched with that of the first boss, so that when the door body is closed, the first boss can be clamped into the second clamping groove, and the second boss can be clamped into the first clamping groove.

4. The automatic door closing apparatus according to claim 1, wherein the rotating member includes a rotating member and a sleeve, the rotating member is disposed inside the sleeve, and a top end of the rotating member is fixedly connected to the sleeve and a bottom end thereof is rotatably connected to the hinge.

5. The automatic door closing apparatus according to claim 4,

the bottom end of the pipe sleeve is provided with a connecting part, and a first through hole is formed in the connecting part;

the second adjusting piece is provided with an inserting part, and the structure of the inserting part is matched with the structure of the first through hole, so that the inserting part can be inserted into the first through hole.

6. The automatic door closing apparatus according to claim 4 or 5, further comprising a connecting shaft, one end of which is fixedly disposed on the hinge and the other end of which passes through the first adjusting member and is rotatably connected to the rotating member.

7. The automatic door closing apparatus according to claim 7, wherein the connecting shaft is provided with a connecting hole, and the connecting hole is square; the bottom end of the rotating piece is square and matched with the connecting hole, so that the bottom end of the rotating piece can be inserted into the connecting hole.

8. The automatic door closing device according to claim 5, further comprising a stopper fixed to the door body, wherein a second through hole is formed in the stopper, and the structure of the second through hole is matched with the connecting portion, so that the second through hole is sleeved on the periphery of the connecting portion.

9. A display cabinet, which is characterized by comprising a cabinet body and a door body, wherein an automatic door closing device is arranged between the cabinet body and the door body, and the automatic door closing device is the automatic door closing device according to any one of claims 1 to 8.

Technical Field

The invention relates to the technical field of refrigeration and freezing cabinets, in particular to an automatic door closing device and a display cabinet.

Background

At present, most of automatic door closing structures of vertical display cabinets are of a pull rod type, and a pull rod type device needs parts such as a support, a pull rod, a rotating shaft, a shell, a rocker arm, a gear, a square steel wire spring and a fixing rivet, is complex to match, high in cost and high in assembling difficulty. Meanwhile, in order to ensure that the door is opened at a small angle, for example, the door can still be automatically closed under the gap between two fingers, a large torque force needs to be preset for the rotating shaft. But with the door body torque force transfer under the circumstances big, can lead to producing very big closing speed when the angle of opening the door is great, cause the great impact of the door body to the box, easily produce the noise and cause the unstability of box, can seriously influence user's use from this and experience.

Disclosure of Invention

The invention aims to provide an automatic door closing device and a display cabinet, and aims to solve the technical problem that the automatic door closing device in the prior art cannot enable a door body to be automatically and stably closed after the door body is opened at a small angle and a large angle at the same time.

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

the utility model provides an automatic door closing device, installs between show cupboard box and the door body, includes:

the hinge is arranged at the lower end of the box body;

the rotating assembly is arranged on the door body, and the bottom end of the rotating assembly is rotatably connected with the hinge;

the first adjusting piece is fixedly arranged on the hinge; a first boss is arranged on the first adjusting piece, and the end faces of two sides of the first boss are both first inclined planes;

the second adjusting piece is fixed at the bottom end of the door body and is rotationally connected with the rotating assembly; a second boss is arranged on the second adjusting piece, and the end faces of two sides of the second boss are both second inclined planes;

the first boss and the second boss are arranged correspondingly, and the structures of the first boss and the second boss are matched; the second adjusting piece can automatically and stably slide downwards along the first inclined plane of the first boss until the door body is closed; when the door body is completely closed, the first adjusting piece and the second adjusting piece can be clamped together.

Preferably, the first adjusting part comprises a first fixed end and a first adjusting end, the first fixed end is fixed on the hinge, and the first adjusting end is provided with the first boss;

the second regulating part comprises a second fixed end and a second regulating end, the second fixed end is fixed on the door body, and the second regulating end is provided with the second boss.

Preferably, the number of the first bosses is two, and the two first bosses are arranged oppositely; two opposite first clamping grooves are formed between the two first bosses;

the number of the second bosses is two, and the two second bosses are oppositely arranged; two opposite second clamping grooves are formed between the two second bosses;

the structure of the first clamping groove is matched with that of the second boss, and the structure of the second clamping groove is matched with that of the first boss, so that when the door body is closed, the first boss can be clamped into the second clamping groove, and the second boss can be clamped into the first clamping groove.

Preferably, the rotating assembly comprises a rotating part and a pipe sleeve, the rotating part is sleeved inside the pipe sleeve, the top end of the rotating part is fixedly connected with the pipe sleeve, and the bottom end of the rotating part is rotatably connected with the hinge.

Preferably, the bottom end of the pipe sleeve is provided with a connecting part, and the connecting part is provided with a first through hole;

the second adjusting piece is provided with an inserting part, and the structure of the inserting part is matched with the structure of the first through hole, so that the inserting part can be inserted into the first through hole.

Preferably, the hinge further comprises a connecting shaft, one end of the connecting shaft is fixedly arranged on the hinge, and the other end of the connecting shaft penetrates through the first adjusting piece and is rotatably connected with the rotating piece.

Preferably, the connecting shaft is provided with a connecting hole, and the connecting hole is square; the bottom end of the rotating piece is square and matched with the connecting hole, so that the bottom end of the rotating piece can be inserted into the connecting hole.

Preferably, the door further comprises a stopper, the stopper is fixed on the door body, a second through hole is formed in the stopper, and the structure of the second through hole is matched with the connecting portion, so that the second through hole is sleeved on the periphery of the connecting portion.

A display cabinet comprises a cabinet body and a door body, wherein an automatic door closing device is arranged between the cabinet body and the door body, and the automatic door closing device is any one of the automatic door closing devices.

Compared with the prior art, the invention has the advantages and positive effects that:

the invention designs an automatic door closing device which is arranged between a box body and a door body, wherein a first adjusting piece and a second adjusting piece are arranged on the automatic door closing device, and the first adjusting piece is fixedly arranged on a hinge; a first boss is arranged on the first adjusting piece, and the end surfaces of two sides of the first boss are both first inclined surfaces; the second adjusting piece is fixed at the bottom end of the door body and is rotationally connected with the rotating assembly; and a second boss is arranged on the second adjusting piece, and the end faces of two sides of the second boss are second inclined planes. Because the first boss and the second boss are arranged oppositely, when the door body is automatically closed, the second inclined plane of the second boss slowly slides downwards along the first inclined plane of the first boss under the action of gravity until the door body is completely closed. From this through setting up first regulating part and second regulating part, even predetermine the axis of rotation for great moment of torsion power, the door body also can realize slowly and stable automatic closing the door, has effectually alleviated the impact of the door body to the box from this. The technical problem of automatic and stable closing after the automatic door closing device can't make the door body realize the low angle simultaneously and wide-angle and open the door among the prior art is solved.

Drawings

Fig. 1 is an exploded view of the automatic door closing apparatus of the present embodiment;

fig. 2 is a schematic structural view of the automatic door closing apparatus of the present embodiment, which is mounted on a door body;

FIG. 3 is a schematic structural view of the first adjusting member in the present embodiment;

FIG. 4 is a schematic structural view of a second adjusting member in the present embodiment;

FIG. 5 is a schematic structural diagram of a rotation assembly in the present embodiment;

FIG. 6 is a schematic structural view of the hinge and the connecting shaft in the present embodiment;

FIG. 7 is a schematic structural diagram of the stopper of this embodiment;

in the above figures: 1. a hinge; 2. a rotating assembly; 21. a rotating member; 22. pipe sleeve; 221. a connecting portion; 222. a first through hole; 3. a first adjustment member; 31. a first fixed end; 32. a first regulation end; 321. a first boss; 322. a first card slot; 323. a first inclined plane; 4. a second adjustment member; 41. a second fixed end; 42. a second regulation end; 421. a second boss; 422. a second card slot; 423. a second inclined plane; 43. a plug-in part; 5. a connecting shaft; 51. connecting holes; 6. a stopper; 61. a second through hole; 7. a door body.

Detailed Description

The invention is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "front", "rear", "first", "second", etc. indicate orientations or positional relationships based on the positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to 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.

In the description of the present application, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; either directly or through an intermediary profile. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

Technical scheme in the embodiment of this application is for solving above-mentioned prior art in the automatic door closing device can't make the door body realize simultaneously that the low-angle and wide-angle open the technical problem of automatic and stable closing after the door, the general thinking as follows:

the invention designs an automatic door closing device which is arranged between a box body and a door body 7, and a first adjusting piece 3 and a second adjusting piece 4 are arranged on the automatic door closing device, wherein the first adjusting piece 3 is fixedly arranged on a hinge 1; a first boss 321 is arranged on the first adjusting piece 3, and the end surfaces of two sides of the first boss 321 are both first inclined surfaces; the second adjusting piece 4 is fixed at the bottom end of the door body 7 and is rotationally connected with the rotating assembly 2; and the second adjusting piece 4 is provided with a second boss 421, and the end surfaces of both sides of the second boss 421 are second inclined surfaces. Because the first boss 321 and the second boss 421 are arranged oppositely, when the door 7 is automatically closed, under the action of gravity, the second inclined plane of the second boss 421 slowly slides downwards along the first inclined plane of the first boss 321 until the door 7 is completely closed, so that by arranging the first adjusting piece 3 and the second adjusting piece 4, even if the rotating shaft is preset to be a large torque force, the door 7 can be slowly and stably automatically closed, and the impact of the door 7 on the box body is effectively relieved. The technical problem that the automatic door closing device in the prior art cannot enable the door body 7 to be automatically and stably closed after being opened at a small angle and a large angle at the same time is solved.

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.

As shown in fig. 1 and 2, an automatic door closing device is installed between a display cabinet and a door body 7, and includes a hinge 1, a rotating assembly 2, a first adjusting member 3, and a second adjusting member 4. The hinge 1 is arranged at the lower end of the box body, namely the lower hinge 1, the rotating assembly 2 is arranged on the door body 7, the bottom end of the rotating assembly 2 is rotatably connected with the hinge 1, and meanwhile, the top end of the door body is connected with the top end of the box body through the upper hinge 1; the first adjusting piece 3 is fixedly arranged on the hinge 1; a first boss 321 is arranged on the first adjusting piece 3, and the end surfaces of two sides of the first boss 321 are both first inclined surfaces 323; the second adjusting piece 4 is fixed at the bottom end of the door body 7 and is rotationally connected with the rotating assembly 2; a second boss 421 is arranged on the second adjusting part 4, and the end surfaces of both sides of the second boss 421 are second inclined surfaces 423; the first boss 321 and the second boss 421 are arranged correspondingly, and the first boss 321 is matched with the second boss 421 in structure; so that the second adjusting part 4 can automatically and stably slide downwards along the first inclined plane 323 of the first boss 321 until the door body 7 is closed; when the door body 7 is completely closed, the first regulating part 3 and the second regulating part 4 can be clamped together.

As shown in fig. 3, the first adjusting member 3 includes a first fixing end 31 and a first adjusting end 32, the first fixing end 31 is fixed on the hinge 1, and the first adjusting end 32 is provided with a first boss 321. In this embodiment, there are two first bosses 321, the two first bosses 321 are disposed oppositely, and two opposite first slots 322 are formed between the two first bosses 321. Specifically, the first adjustment end 32 has an annular structure, and the two first bosses 321 are axially symmetric about the radial axis. Meanwhile, the end surfaces of the two sides of the first boss 321 are inclined surfaces, and the arc length of the lower bottom surface of the first boss 321 is greater than that of the upper bottom surface of the first boss 321.

As shown in fig. 4, the second adjusting member 4 includes a second fixing end 41 and a second adjusting end 42, the second fixing end 41 is fixed on the hinge 1, and the second adjusting end 42 is provided with a second boss 421. In this embodiment, the structure of the second boss 421 is the same as that of the first boss 321. Specifically, the number of the second bosses 421 is two, the two second bosses 421 are arranged oppositely, and two opposite second locking grooves 422 are formed between the two second bosses 421. Specifically, the second adjustment end 42 has an annular structure, and the two second bosses 421 are axially symmetric about the radial axis. Meanwhile, the end surfaces of the two sides of the second boss 421 are inclined surfaces, and the arc length of the lower bottom surface of the second boss 421 is greater than the arc length of the upper bottom surface of the second boss 421. The structure of the first card slot 322 is matched with the structure of the second boss 421, the structure of the second card slot 422 is matched with the structure of the first boss 321, so that when the door body 7 is closed, the first boss 321 can be clamped into the second card slot 422, and the second boss 421 can be clamped into the first card slot 322. Through the structure, when the door body 7 is automatically closed, the second boss 421 can slowly slide along the first inclined plane 323 of the first boss 321 until the second boss 421 is completely clamped into the first clamping groove 322, and meanwhile, the first boss 321 is clamped into the second clamping groove 422, so that the door body 7 is completely closed; therefore, by arranging the first adjusting piece 3 and the second adjusting piece 4, even if the rotating shaft is preset to have a large torque force, the door body 7 can be slowly and stably closed automatically, and the impact of the door body 7 on the box body is effectively relieved; when the door body is opened, the door body can be closed stably at small angles or large angles. The technical problem that the automatic door closing device in the prior art cannot enable the door body 7 to be automatically and stably closed after being opened at a small angle and a large angle at the same time is solved.

Further, a plug-in part 4 is further arranged on the second adjusting part 4, and the structure of the plug-in part 4 is matched with the bottom end part of the rotating assembly 2, so that the second adjusting part 4 can be rotatably connected with the rotating assembly 2 through the plug-in part 4.

As shown in fig. 5, the rotating assembly 2 includes a rotating member 21 and a sleeve 22, the rotating member 21 is sleeved inside the sleeve 22, a top end of the rotating member is fixedly connected to the sleeve 22, and a bottom end of the rotating member is rotatably connected to the hinge 1. In the present embodiment, the rotating member 21 is preferably of a steel wire structure. Further, the bottom end of the pipe sleeve 22 is further provided with a connecting portion 221, the periphery of the connecting portion 221 is of an outer hexagonal structure, a first through hole 222 is formed in the connecting portion 221, the structure of the first through hole 222 is matched with the structure of the insertion portion 4 on the second adjusting piece 4, so that the second insertion portion 4 can be inserted into the first through hole 222, and the second adjusting piece 4 is rotatably connected with the rotating assembly 2.

As shown in fig. 6, the hinge further comprises a connecting shaft 5, one end of the connecting shaft 5 is fixedly arranged on the hinge 1, and the other end of the connecting shaft 5 penetrates through the first adjusting member 3 and is rotatably connected with the rotating member 21. Specifically, the connecting shaft 5 is provided with a connecting hole 51, and the connecting hole 51 is square; that is, the bottom end of the rotation member 21 has a square structure to be fitted into the connection hole 51, so that the bottom end of the rotation member 21 can be inserted into the connection hole 51. When the door body 7 is in a completely closed state, no torque force is applied to the rotating piece 21; when the door body 7 is opened, the rotating member 21 rotates in the connecting hole 51, thereby generating a torque force, and the automatic closing of the door body 7 can be realized under the torque force.

Meanwhile, as shown in fig. 7, the door body 7 is further provided with a stopper 6, the stopper 6 is provided with a second through hole 61, in this embodiment, the second through hole 61 is preferably a hexagonal hole, so that it can be matched with the connecting portion 221 at the bottom end of the pipe sleeve 22, and the second through hole 61 is sleeved on the periphery of the connecting portion 221, thereby realizing adjustment of the rotational torque force of the door body 7; meanwhile, the limiter 6 is matched with the hinge 1, so that the door body 7 can be prevented from being too large in angle when being opened.

From this, through adopting above structure, through setting up first regulating part 3 and second regulating part 4 promptly, and first regulating part 3 cooperatees with second regulating part 4 for door body 7 can slide slowly downwards along the first inclined plane of first regulating part 3 at the in-process of self-closing, the effectual influence that reduces door body 7 torsional force to door body 7 closing speed. From this, even still can make a body 7 self-closing in order to guarantee that the low-angle is opened the door, and when needing to predetermine great moment of torsion for the axis of rotation, under the effect of first regulating part 3 and second regulating part 4, the body 7 can not appear because the moment of torsion power is too big and make the speed of closing the door too fast yet, leads to a body 7 to strike great phenomenon to the box, has solved automatic door closing device among the prior art and can't make a body 7 realize automatic and the stable technical problem who closes behind low-angle and the wide-angle door opening simultaneously from this.