Inclined self-locking hinge, mistaken door opening prevention body and refrigerator
By inserting a swingable limiting column in the hinge shaft of the refrigerator door body, the automatic locking function is realized when the inclination angle is too large, solving the problem of opening the refrigerator door body by itself and improving the user experience.
Patent Information
- Application Number
- CN202421282587.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-06-06
AI Technical Summary
The refrigerator door body is easily opened by itself when transported or placed on uneven ground, resulting in poor user experience.
A tilt self-locking hinge is designed. By inserting a swingable limiting post into the hinge shaft, when the hinge reaches a certain inclination angle, the limiting post enters the slot cavity and locks the hinge state to prevent the door from opening by itself.
It effectively prevents the refrigerator door body from automatically opening when the inclination angle is too large, improves the user experience, and adds a locking function without increasing the overall volume.
Smart Images
Figure CN222797314U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of hinges, and in particular relates to an inclined self-locking hinge, an anti-mis-opening door body and a refrigerator. Background Art
[0002] The refrigerator door is equipped with a magnetic strip, which is attached to the box body by magnetic force to achieve the purpose of sealing and closing. During the transportation of the refrigerator, it is easy to tilt, and the magnetic attraction force is much smaller than the weight of the door body, so it is easy for the door body to open by itself.
[0003] If the refrigerator is placed on an uneven ground, the door may open automatically, affecting the user experience.
[0004] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content
[0005] In view of the above-mentioned defects, the utility model mainly provides a tilting self-locking hinge to solve the technical problem of automatic opening when the tilt angle is too large.
[0006] In order to solve the above problems, the utility model provides an inclined self-locking hinge, comprising a shaft sleeve and a hinge shaft that are rotatably sleeved; the hinge shaft is fixed on a hinge plate; a threaded hole is provided in the hinge shaft, and an adjusting bolt is threadedly connected in the threaded hole; the hinge shaft is also provided with a top communicating threaded hole, and openings on both sides are through and extend to a clearance cavity on the outer side surface of the hinge shaft; a limiting column that is movably suspended at the lower end of the adjusting bolt is provided in the clearance cavity;
[0007] The shaft sleeve is also provided with a shaft hole, in which the hinge shaft is rotatably connected; the shaft sleeve may be provided with two slot cavities symmetrically distributed on both sides of the shaft hole and connected to the shaft hole;
[0008] The shaft sleeve and the hinge shaft can rotate relative to each other. When the shaft sleeve and the hinge shaft are rotated to communicate with each other and the inclination angle of the hinge reaches or exceeds the locking opening angle, the limiting column is kept in a vertical state under the action of gravity, so that a part of the limiting column enters the slot cavity, thereby locking the shaft sleeve and the hinge shaft.
[0009] When the hinge is reset to the vertical state, all the limiting posts return to the clearance cavity, and the locking state is released.
[0010] According to the tilting self-locking hinge of the utility model, the value of the locking opening angle is determined according to the distance between the hinge and the center of the tilting rotation circle.
[0011] According to the inclined self-locking hinge of the utility model, the numerical selection range of the locking opening angle is: 1-10°.
[0012] According to the inclined self-locking hinge of the utility model, a rotating ball is fixedly arranged at the upper end of the limiting column, and a spherical groove for movably accommodating the rotating ball is arranged at the lower end of the adjusting bolt.
[0013] According to the inclined self-locking hinge of the utility model, a magnetic attraction block is provided on the bottom surface of the yield cavity, and the limiting column is made of a magnetic conductive material.
[0014] According to the inclined self-locking hinge of the utility model, the magnetic attraction block is a hemispherical structure.
[0015] According to the inclined self-locking hinge of the utility model, a hinge nut is fixedly arranged on the top of the hinge shaft; and a locking nut threadedly connected to the adjusting bolt is arranged between the bolt head of the adjusting bolt and the hinge nut.
[0016] A door body that prevents mis-opening comprises a door body; the top of the door body is provided with the inclined self-locking hinge; and the shaft sleeve is fixedly embedded in the door body.
[0017] According to the anti-mis-opening door body of the utility model, an anti-rotation strip is fixedly arranged on the outer side wall of the shaft sleeve, and an anti-rotation groove which is plug-fitted with the anti-rotation strip is opened in the middle of the door body.
[0018] A refrigerator has the anti-mis-opening door body; when the door body is in a closed state, the card slot cavity of the inclined self-locking hinge is communicated with the yield cavity.
[0019] In summary, the tilting self-locking hinge of the utility model has a swingable limit column built into the hinge shaft; when the hinge reaches a certain tilt angle, the limit column enters the slot cavity to lock the state to prevent it from continuing to rotate. The utility model has a simple structure and adds a locking function without increasing the overall volume. The utility model also provides an anti-mis-opening door body with the tilting self-locking hinge and a refrigerator with the door body. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural schematic diagram of the inclined self-locking hinge of the utility model;
[0021] Figure 2 yes Figure 1 Schematic diagram of the structure of the middle hinge axis;
[0022] Figure 3 It is a cross-sectional structural schematic diagram of the inclined self-locking hinge of the utility model;
[0023] Figure 4 yes Figure 3 The main view;
[0024] Figure 5 yes Figure 3A schematic diagram of a working state of the tilting self-locking hinge;
[0025] Figure 6 yes Figure 5 Schematic diagram of the structure of the middle A area;
[0026] Figure 7 It is a structural schematic diagram of the door body of the utility model;
[0027] Figure 8 yes Figure 7 Schematic diagram of the structure of the middle B area;
[0028] In the figure: 1-hinge plate, 11-hinge shaft, 111-allowance cavity, 112-magnetic block; 12-hinge nut, 13-adjusting bolt, 14-limiting column, 141-rotating ball; 15-locking nut; 2-shaft sleeve, 21-anti-rotation strip, 22-slot cavity, 23-shaft hole; 3-door body. DETAILED DESCRIPTION
[0029] See also Figure 1 The utility model provides a tilting self-locking hinge, comprising a rotatably sleeved shaft sleeve 2 and a hinge shaft 11; the hinge shaft 11 is fixed on a hinge plate 1; and Figure 2 and Figure 3 The hinge shaft 11 is provided with a threaded hole, and an adjusting bolt 13 is threadedly connected in the threaded hole; the hinge shaft 11 is also provided with a clearance cavity 111 which is connected to the threaded hole at the top and has openings on both sides extending through and extending to the outer side surface of the hinge shaft 11; the clearance cavity 111 is provided with a limiting column 14 which is movably suspended at the lower end of the adjusting bolt 13;
[0030] The shaft sleeve 2 is also provided with a shaft hole 23, and the hinge shaft 11 is rotatably connected in the shaft hole 23; the shaft sleeve 2 may be provided with two slot cavities 22 symmetrically distributed on both sides of the shaft hole 23 and connected to the shaft hole 23;
[0031] The sleeve 2 and the hinge shaft 11 can rotate relative to each other. When the slot cavity 22 is rotated to communicate with the clearance cavity 111, and the inclination angle of the hinge reaches or exceeds the locking opening angle: the limit column 14 remains in a vertical state under the action of gravity, so that a part of it enters the slot cavity 22, thereby locking the state of the sleeve 2 and the hinge shaft 11; preventing rotation between the two.
[0032] When the hinge is reset to the vertical state, the limiting posts 14 are all returned to the clearance cavity 111, and the locking state is released; the shaft sleeve 2 and the hinge shaft 11 can continue to rotate relative to each other.
[0033] The selected range of the locking opening angle of the utility model is: 1-10°. Those skilled in the art can adaptively set the value of the locking opening angle of the hinge according to the actual usage scenario. For example, when the inclination angle of the hinge reaches or exceeds 1°, 3°, 5°, 7° or 10°, the limit post 14 enters the clearance cavity 111 and opens the locking state. Those skilled in the art can adaptively set the length of the limit post 14 according to the opening angle of the locking state.
[0034] Optionally, the utility model can determine the value of the locking opening angle according to the distance between the hinge and the center of the tilting rotation circle. If the distance between the two is large, the value of the locking opening angle can be set to be smaller; if the distance between the two is small, the value of the locking opening angle can be set to be larger;
[0035] As an embodiment of the movable hanging structure between the adjusting bolt 13 and the limiting column 14, a rotating ball 141 is fixedly provided at the upper end of the limiting column 14, and a spherical groove for movably accommodating the rotating ball 141 is provided at the lower end of the adjusting bolt 13; the rotating ball 141 can rotate in any direction in the spherical groove, so that the swing of the limiting column 14 is flexible and smooth.
[0036] Combination Figure 6 As an embodiment, in order to prevent the limit column 14 from reciprocatingly swinging due to inertia after resetting to the vertical posture, affecting the subsequent relative rotation of the sleeve 2 and the hinge shaft 11. Or due to external interference, the limit column 14 swings greatly into the slot cavity 22, affecting the smooth rotation between the sleeve 2 and the hinge shaft 11. A magnetic block 112 is provided on the bottom surface of the yield cavity 111, and the limit column 14 is made of a magnetic conductive material. A magnetic attraction force is generated between the limit column 14 and the magnetic block 112 to prevent the limit column 14 from swinging due to interference and to prevent incorrect locking.
[0037] When resetting to the vertical state, the magnetic attraction exerts a pulling effect on the limit post 14, causing the limit post 14 to quickly stop in the vertical posture.
[0038] When the tilt angle is small, the force component of the limit column 14 in the tilt direction is small, and it cannot swing, thereby preventing it from swinging into the card slot cavity 22. When the tilt angle becomes larger, the force component of the limit column 14 in the tilt direction exceeds the magnetic attraction force, and the limit column 14 swings.
[0039] Furthermore, the magnetic block 112 is a hemispherical structure. When the limit column 14 is in a vertical state, the distance between the magnetic block 112 and the lower end of the limit column 14 is the shortest, and the magnetic attraction force is the largest at this time, which can effectively maintain the stable state of the limit column 14. When the limit column 14 tilts and swings, the distance between the magnetic block 112 and the limit column 14 increases, and the magnetic attraction force between the two decreases rapidly, which does not affect the swing of the limit column 14.
[0040] Optionally, in order to strengthen the stability of the connection between the adjusting bolt 13 and the hinge shaft 11, a hinge nut 12 is further fixed to the top of the hinge shaft 11 to increase the thread matching length with the adjusting bolt 13 and improve the stability of the matching between the two.
[0041] Furthermore, a locking nut 15 threadedly connected to the adjusting bolt 13 is provided between the bolt head of the adjusting bolt 13 and the hinge nut 12 to prevent the adjusting bolt 13 from rotating on its own when the hinge is in use.
[0042] The tilting self-locking hinge of the utility model has a swingable limit column 14 built into the hinge shaft 11; when the hinge reaches a certain tilt angle, the limit column 14 enters the card slot cavity 22 to lock the state to prevent it from continuing to rotate. The utility model has a simple structure and adds a locking function without increasing the overall volume.
[0043] See also Figure 7 The utility model also provides an anti-mis-opening door body, comprising a door body 3; the top of the door body 3 is equipped with the inclined self-locking hinge; Figure 8 , the shaft sleeve 2 is fixedly embedded in the door body 3;
[0044] Optionally, an anti-rotation strip 21 is fixedly provided on the outer wall of the shaft sleeve 2, and an anti-rotation groove which is plugged into and cooperates with the anti-rotation strip 21 is opened in the middle of the door body 3; thereby improving the stability of the shaft sleeve 2 in the door body 3 and preventing it from loosening and affecting the smooth rotation of the door body 3.
[0045] When the door body 3 rotates to a predetermined position, the slot cavity 22 is connected to the clearance cavity 111. If the inclination angle of the door body 3 reaches or exceeds the locking opening angle at this time, the limit column 14 enters the slot cavity 22 to lock the state of the door body 3 and prevent it from rotating.
[0046] If the door body 3 does not tilt significantly during the rotation process, the limiting post 14 will never enter the card slot cavity 22, and will not affect the normal use of the door body 3.
[0047] The utility model also provides a refrigerator having the anti-mis-opening door body; when the door body is in a closed state, the card slot cavity 22 of the inclined self-locking hinge is connected to the clearance cavity 111;
[0048] If the refrigerator is tilted at a large angle in the front and rear directions at this time, the limiting post 14 enters the card slot cavity 22 to lock the door body and restrict its opening.
[0049] In summary, the utility model provides a tilting self-locking hinge, by embedding a swingable limit column in the hinge shaft; when the hinge reaches a certain tilt angle, the limit column enters the card slot cavity, locking the state to prevent it from continuing to rotate. The utility model has a simple structure and adds a locking function without increasing the overall volume. The utility model also provides an anti-mis-opening door body with the tilting self-locking hinge and a refrigerator with the door body.
[0050] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.
Claims
1. A tilting self-locking hinge, characterized in that: It comprises a shaft sleeve and a hinge shaft which are rotatably connected; the hinge shaft is fixed on a hinge plate; a threaded hole is arranged in the hinge shaft, and an adjusting bolt is threadedly connected in the threaded hole; the hinge shaft is also provided with a top communicating threaded hole, and openings on both sides are connected to a clearance cavity extending to the outer side surface of the hinge shaft; a limiting column which is movably suspended at the lower end of the adjusting bolt is arranged in the clearance cavity; The shaft sleeve is also provided with a shaft hole, in which the hinge shaft is rotatably connected; the shaft sleeve may be provided with two slot cavities symmetrically distributed on both sides of the shaft hole and connected to the shaft hole; The shaft sleeve and the hinge shaft can rotate relative to each other. When the shaft sleeve and the hinge shaft are rotated to communicate with each other and the inclination angle of the hinge reaches or exceeds the locking opening angle, the limiting column is kept in a vertical state under the action of gravity, so that a part of the limiting column enters the slot cavity, thereby locking the shaft sleeve and the hinge shaft. When the hinge is reset to the vertical state, all the limiting posts return to the clearance cavity, and the locking state is released.
2. The tilt self-locking hinge according to claim 1, characterized in that: The value of the locking opening angle is determined according to the distance between the hinge and the center of the tilting rotation circle.
3. The tilt self-locking hinge according to claim 1, characterized in that: The numerical selection range of the locking opening angle is: 1-10°.
4. The tilt self-locking hinge according to claim 1, characterized in that: A rotating ball is fixedly arranged at the upper end of the limiting column, and a spherical groove for movably accommodating the rotating ball is arranged at the lower end of the adjusting bolt.
5. The tilt self-locking hinge according to claim 1, characterized in that: A magnetic attraction block is arranged on the bottom surface of the clearance cavity, and the limiting column is made of magnetic conductive material.
6. The tilt self-locking hinge according to claim 5, characterized in that: The magnetic attraction block is a hemispherical structure.
7. The tilt self-locking hinge according to claim 1, characterized in that: A hinge nut is also fixedly arranged on the top of the hinge shaft; a locking nut threadedly connected with the adjusting bolt is also arranged between the bolt head of the adjusting bolt and the hinge nut.
8. A door body that prevents accidental opening, characterized in that: It comprises a door body; the top of the door body is provided with an inclined self-locking hinge as claimed in any one of claims 1 to 7; the shaft sleeve is fixedly embedded in the door body.
9. The anti-mis-opening door body according to claim 8, characterized in that: An anti-rotation strip is fixedly arranged on the outer side wall of the shaft sleeve, and an anti-rotation groove which is plugged and matched with the anti-rotation strip is opened in the middle of the door body.
10. A refrigerator, characterized in that: It has an anti-misopening door body as described in claim 9; when the door body is in a closed state, the card slot cavity of the inclined self-locking hinge is connected to the yield cavity.