CN215978945U - Automatic door closing structure capable of adjusting resilience force - Google Patents
Automatic door closing structure capable of adjusting resilience force Download PDFInfo
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- CN215978945U CN215978945U CN202122277363.8U CN202122277363U CN215978945U CN 215978945 U CN215978945 U CN 215978945U CN 202122277363 U CN202122277363 U CN 202122277363U CN 215978945 U CN215978945 U CN 215978945U
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- body frame
- door body
- sleeve
- resilience force
- limiting block
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Abstract
The utility model discloses an automatic door closing structure capable of adjusting resilience, which comprises an upper fixed hinge, a door body frame, a resilience device, a lower fixed hinge and an elastic force adjusting nut, wherein the resilience device, the lower fixed hinge and the elastic force adjusting nut are positioned in the door body frame, the door body frame is rotatably connected with the upper fixed hinge, the resilience device comprises a sleeve and a torsion spring positioned in the sleeve, the bottom of the sleeve extends out of the door body frame and is connected with the door body frame through a connecting piece, the elastic force adjusting nut comprises a limiting block and a rotating shaft vertically connected with the limiting block, one end of the torsion spring is connected with the top of the sleeve, the other end of the torsion spring is connected with the rotating shaft extending into the sleeve, a limiting groove for preventing the limiting block from rotating is arranged on the lower fixed hinge, and the limiting block is detachably arranged in the limiting groove. The resilience force of the torsion spring can be adjusted by the structure, the operation of the adjusting process is simple and convenient, the service life of the refrigerator is prolonged, and meanwhile, the disassembly and assembly and maintenance processes of the door frame are simple to operate, so that the production and after-sale cost of the refrigerator are reduced.
Description
Technical Field
The utility model relates to the technical field of automatic door closing of refrigerators, in particular to an automatic door closing structure capable of adjusting resilience force for a refrigerator.
Background
The existing refrigerator door body is generally connected with a refrigerator body through hinges or upper and lower hinges in a rotating mode, and then the door is opened and closed. More advanced refrigerator door bodies realize automatic door closing by installing a return spring or other automatic door closing devices. Above-mentioned automatic refrigerator of closing door uses for a long time, the dynamics of closing door of spring or automatic door closer, and the resilience force can descend promptly, leads to the process of closing the door slow or can not automatically close the door, perhaps the refrigerator resilience force when dispatching from the factory is too big, and the process of automatically closing the door is very fast, takes place strong striking between the door body and the cabinet body, damages a body sealing strip. Based on the above-mentioned problem, current refrigerator door lacks a device that can adjust the resilience force size. In addition, the existing refrigerator door generally has the problem of difficult disassembly and assembly, and the assembly and after-sale cost of the refrigerator are increased.
In this regard, there is a need for improvements in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an automatic door closing structure capable of adjusting resilience force, and aims to solve the problems that the resilience force of a closed door of an automatic door closing refrigerator in the prior art cannot be adjusted and a refrigerator door body is difficult to disassemble and assemble.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides an automatic door closing structure of adjustable resilience force, includes fixed hinge, door body frame, is located the inside resilient means of door body frame, lower fixed hinge and elasticity adjusting nut, door body frame rotates with last fixed hinge to be connected, resilient means includes the sleeve pipe and is located the torsional spring in the sleeve pipe, the sheathed tube bottom stretches out door body frame and is connected with door body frame through the connecting piece, elasticity adjusting nut includes stopper and the pivot of being connected perpendicularly with the stopper, the one end and the sheathed tube top of torsional spring are connected, and the other end is connected with the pivot of stretching into the sheathed tube, be equipped with on the fixed hinge down and prevent stopper pivoted spacing recess, stopper detachable installs in spacing recess.
Preferably, the upper fixed hinge is provided with a hinge rotating shaft, the top of the door body frame correspondingly is provided with a rotating shaft hole matched with the hinge rotating shaft, the rotating connection is realized, and the door body frame can move along the hinge rotating shaft.
Preferably, the both ends of torsional spring are square structure, sheathed tube top is equipped with flat mouth, the square structure of torsional spring one end stretches out flat mouth makes the sleeve pipe and the synchronous rotation of the square structure that corresponds.
Preferably, the inside of pivot is equipped with the quad slit, the square structure of the torsional spring other end stretches into in the quad slit, make elasticity adjusting nut and the synchronous rotation of the square structure that corresponds.
Preferably, the outer wall of the bottom of the sleeve is provided with an outer hexagonal protrusion, the connecting piece is provided with an inner hexagonal hole matched with the outer hexagonal protrusion, and the connecting piece is sleeved on the outer hexagonal protrusion and fixedly connected with the door body frame.
Preferably, the outer wall of the bottom of the outer hexagonal protrusion is provided with an annular flange, and the annular flange plays a limiting role in the sleeve.
Preferably, the limiting block is an outer hexagonal limiting block, and the limiting groove is an inner hexagonal limiting groove matched with the outer hexagonal limiting block.
Preferably, a plastic shaft sleeve is arranged between the rotating shaft and the sleeve.
Preferably, the middle part of the limiting block is provided with a threaded hole, and a fixing bolt penetrates through the lower fixing hinge and is screwed in the threaded hole to play a fixing role.
Compared with the prior art, the utility model has the following beneficial effects:
(1) utility model can realize adjusting the resilience force of torsional spring, and accommodation process easy operation is convenient, has improved the life of refrigerator.
(2) The door body frame is easy to assemble, disassemble and maintain, and the production and after-sale cost of the refrigerator is reduced.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a front view showing the overall structure of the automatic door closing structure of the present invention.
Fig. 2 is an enlarged view of a in fig. 1.
Fig. 3 is a side view showing the overall structure of the automatic door closing structure of the present invention.
Fig. 4 is an enlarged view B of fig. 3.
Fig. 5 is a detail view of the rebounding device of the present invention.
Fig. 6 is an installation view of the door frame bottom connector of the present invention.
Fig. 7 is a view of the structure of the elastic force adjusting nut of the present invention at different angles.
Fig. 8 is a structural view of the torsion spring of the present invention.
Fig. 9 is a view showing the construction of the lower fixed hinge of the present invention.
In the figure: 1. an upper fixed hinge; 11. a hinge shaft; 2. a door frame; 3. a rebounding device; 31. a sleeve; 311. a flat mouth; 312. a right outer hexagonal bulge; 313. an annular flange; 32. a torsion spring; 321. a square structure; 4. a lower fixed hinge; 41. a limiting groove; 5. an elastic force adjusting nut; 51. a limiting block; 511. a threaded hole; 52. a rotating shaft; 53. a square hole; 6. fixing the bolt; 7. a connecting member; 71. a regular hexagon socket; 8. and a plastic shaft sleeve.
Detailed Description
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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 4, a preferred embodiment of the present invention provides an adjustable resilient automatic door closing structure, including: the door comprises an upper fixed hinge 1, a door body frame 2, a rebound device 3, a lower fixed hinge 4, an elastic force adjusting nut 5 and a fixed bolt 6.
Wherein, go up fixed hinge 1 and fixed hinge 4 symmetry setting from top to bottom down, install on the refrigerator cabinet body through the bolt respectively, door body frame 2 is located between fixed hinge 1 and the fixed hinge 4 down, and can the free rotation, realizes the switch door.
Specifically, go up and be equipped with hinge pivot 11 on the fixed hinge 1, the corresponding pivot hole (not shown in the figure) that is equipped with and hinge pivot 11 looks adaptation at door body frame 2's top, hinge pivot 11 is inserted and is realized going up fixed hinge 1 and door body frame 2 rotation connection in the pivot hole, and more specifically, door body frame 2 can use hinge pivot 11 to rotate as the axle, and door body frame 2 can also reciprocate along hinge pivot 11 simultaneously.
Here, the rebounding device 3 is located inside the door frame 2, and as shown in fig. 5, the rebounding device 3 includes a sleeve 31 and a torsion spring 32 located inside the sleeve 31. Specifically, the top of the sleeve 31 is provided with a flat opening 311, and the bottom of the sleeve 31 extends out of the bottom of the door body frame 2 and is connected with the door body frame 2 through the connecting piece 7. More specifically, as shown in fig. 6, the connecting member 7 is a connecting plate, a regular hexagon socket 71 is disposed on the connecting plate, a regular outer hexagon protrusion 312 matched with the regular hexagon socket 71 is disposed at the bottom of the sleeve 31, the connecting plate is sleeved on the regular outer hexagon protrusion 312 at the bottom of the sleeve 31, and the connecting plate is fixedly connected to the door frame 2 through a bolt.
Further, an annular flange 313 is arranged on the outer wall of the bottom of the right outer hexagonal protrusion 312, the annular flange 313 plays a limiting role in limiting the sleeve 31, specifically, the sleeve 31 can move up and down, and when the sleeve 31 moves up, the annular flange 313 contacts with the connecting plate and plays a blocking role, so that the sleeve 31 is prevented from completely entering the door body frame 2.
As shown in fig. 7, the elasticity adjusting nut 5 includes a limiting block 51 and a rotating shaft 52 vertically connected to the limiting block 51, and the limiting block 51 and the rotating shaft 52 can be fixedly connected by welding. Specifically, the limiting block 51 is an outer hexagonal limiting block, and a square hole 53 is formed in the rotating shaft 52.
As shown in fig. 8, both ends of the torsion spring 32 are square structures 321, the square structure 321 at one end of the torsion spring 32 extends out of the flat opening 311 at the top of the sleeve 31, and the flat opening 311 prevents the square structure 321 from rotating relative to the sleeve 31, i.e. ensures that the sleeve 31 and the square structure 321 act synchronously. The square structure 321 at the other end of the torsion spring 32 is connected to the rotating shaft 52 extending into the sleeve 31, specifically, the square structure 321 at the other end of the torsion spring 32 is inserted into the square hole 53 inside the rotating shaft 52, and the square hole 53 prevents the square structure 321 from rotating relative to the rotating shaft 52, i.e. it is ensured that the elastic force adjusting nut 5 and the square structure 321 rotate synchronously
Further, when the rotating shaft 52 extends into the sleeve 31 to a maximum distance, the stopper 51 contacts the annular flange 313 and acts as a stop, i.e., the stopper 51 is located outside the sleeve 31.
Further, a plastic bushing 8 is disposed between the shaft 52 and the sleeve 31 to reduce friction force of relative rotation between the shaft 52 and the sleeve 31.
As shown in fig. 9, wherein, the lower fixing hinge 4 is provided with a limiting groove 41 for preventing the limiting block 51 from rotating, specifically, the limiting groove 41 is an inner hexagonal limiting groove adapted to the outer hexagonal limiting block, and the outer hexagonal limiting block is detachably disposed in the inner hexagonal limiting groove. Under the effect of the self gravity of the door body frame 2, the outer hexagonal limiting block can be pressed in the inner hexagonal limiting groove, and the outer hexagonal limiting block is effectively prevented from being separated from the inner hexagonal limiting groove in the door opening and closing process.
Further, in order to prevent the outer hexagonal limiting block from being separated from the inner hexagonal limiting groove in the carrying process, the outer hexagonal limiting block is fixed through the fixing bolt 6, specifically, the middle of the limiting block 51 is provided with a threaded hole 511, and the fixing bolt 6 penetrates through the lower fixing hinge 4 and is screwed into the threaded hole 511 to play a fixing role.
The method for opening and closing the door and adjusting the resilience of the utility model is explained as follows:
when the door body frame 2 is opened manually, the hinge rotating shaft 11 or the rotating shaft 52 rotates as a shaft and drives the sleeve 31 to rotate synchronously, the square structure 321 at one end of the torsion spring 32 rotates synchronously along with the sleeve 31 in the process, the square structure 321 at the other end of the torsion spring 32 is still, and the resilience of the torsion spring 32 is increased gradually along with the increase of the opening angle of the door body frame 2. When the door frame 2 is automatically closed by the resilience of the torsion spring 32 after the hand is released, the torsion spring 32 also has a certain resilience in the state that the door frame 2 is closed.
Along with the increase of the number of times of use or other reasons (such as the mass of the torsion spring), the resilience force of the torsion spring 32 can be gradually reduced, that is, when the door body frame 2 is opened to the maximum angle, the resilience force is weaker, and the automatic door closing cannot be realized, and at this time, the resilience force, that is, the torsion force of the torsion spring 32 needs to be increased. The specific adjustment method is as follows:
firstly, the fixing bolt 6 is screwed out, the door body frame 2 is lifted by force, the door body frame 2 moves upwards along the hinge rotating shaft 11 until the limiting block 51 is separated from the limiting groove 41, then the limiting block 51 is manually rotated to increase the resilience of the torsion spring 32, wherein the rotation angle of the limiting block 51 is determined according to the actual situation, and finally the limiting block 51 is placed in the limiting groove 41 and the fixing bolt 6 is screwed in.
When the refrigerator leaves the factory, the resilience force of the torsion spring 32 needs to be reduced when the resilience force is too large, and the specific adjusting method is similar to the method for increasing the resilience force of the torsion spring 32, and is not described herein again.
In addition, according to the technical scheme, the assembly and disassembly process of the door body frame is simple in operation, when the door body frame needs to be replaced or a certain part needs to be replaced, for example, the door body frame can be disassembled only by screwing out the fixing bolt and lifting up the door body frame, then the rebound device is taken out (the rebound device can be directly taken out without related operation) and replaced, and the whole operation process does not need to use a complex tool, so that the door body frame is simple and convenient to use.
In conclusion, the technical scheme of the utility model can realize the adjustment of the resilience force of the torsion spring, the adjustment process is simple and convenient to operate, and the service life of the refrigerator is prolonged. In addition, the door body frame is easy to assemble, disassemble and maintain, and the production and after-sale cost of the refrigerator is reduced.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides an automatic door closing structure of adjustable resilience force, its characterized in that includes fixed hinge, door body frame, is located the inside resilient means of door body frame, lower fixed hinge and elasticity adjusting nut, door body frame rotates with last fixed hinge to be connected, resilient means includes the sleeve pipe and is located the torsional spring in the sleeve pipe, the sheathed tube bottom stretches out door body frame and is connected with door body frame through the connecting piece, elasticity adjusting nut includes stopper and the pivot of being connected perpendicularly with the stopper, the one end and the sheathed tube top of torsional spring are connected, and the other end is connected with the pivot of stretching into the sheathed tube, be equipped with on the fixed hinge down and prevent stopper pivoted spacing recess, stopper detachable installs in spacing recess.
2. The automatic door closing structure with the adjustable resilience force according to claim 1, wherein a hinge rotating shaft is arranged on the upper fixed hinge, a rotating shaft hole matched with the hinge rotating shaft is correspondingly arranged at the top of the door body frame, the rotating connection is realized, and the door body frame can move along the hinge rotating shaft.
3. The automatic door closing structure with adjustable resilience force according to claim 1, wherein both ends of the torsion spring are square structures, the top of the sleeve is provided with a flat opening, and the square structure at one end of the torsion spring extends out of the flat opening, so that the sleeve and the corresponding square structure rotate synchronously.
4. The automatic door closing structure with adjustable resilience force according to claim 3, wherein the rotating shaft is provided with a square hole inside, and the square structure at the other end of the torsion spring extends into the square hole, so that the spring force adjusting nut and the corresponding square structure rotate synchronously.
5. The automatic door closing structure with adjustable resilience force according to claim 3, wherein the outer wall of the bottom of the sleeve is provided with an outer hexagonal protrusion, the connecting member is provided with an inner hexagonal hole matched with the outer hexagonal protrusion, and the connecting member is sleeved on the outer hexagonal protrusion and fixedly connected with the door body frame.
6. The automatic door closing structure with adjustable resilience force according to claim 5, wherein the outer wall of the bottom of the outer hexagonal protrusion is provided with an annular flange, and the annular flange has a limiting effect on the sleeve.
7. The automatic door closing structure with adjustable resilience force according to claim 1, wherein the limiting block is an outer hexagonal limiting block, and the limiting groove is an inner hexagonal limiting groove adapted to the outer hexagonal limiting block.
8. The door closer with adjustable resilience as claimed in claim 1, wherein a plastic bushing is disposed between the shaft and the sleeve.
9. The automatic door closing structure with adjustable resilience force according to claim 1, wherein a threaded hole is formed in the middle of the limiting block, and a fixing bolt passes through the lower fixing hinge and is screwed into the threaded hole to achieve a fixing effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122277363.8U CN215978945U (en) | 2021-09-18 | 2021-09-18 | Automatic door closing structure capable of adjusting resilience force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122277363.8U CN215978945U (en) | 2021-09-18 | 2021-09-18 | Automatic door closing structure capable of adjusting resilience force |
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| Publication Number | Publication Date |
|---|---|
| CN215978945U true CN215978945U (en) | 2022-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122277363.8U Active CN215978945U (en) | 2021-09-18 | 2021-09-18 | Automatic door closing structure capable of adjusting resilience force |
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| CN (1) | CN215978945U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113700405A (en) * | 2021-09-18 | 2021-11-26 | 青岛美芝冷链科技有限公司 | Automatic door closing structure capable of adjusting resilience force |
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2021
- 2021-09-18 CN CN202122277363.8U patent/CN215978945U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113700405A (en) * | 2021-09-18 | 2021-11-26 | 青岛美芝冷链科技有限公司 | Automatic door closing structure capable of adjusting resilience force |
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