Hinge structure for opening door by turning up and down
By combining the hinge base, rollers, and rotating shaft, along with the design of anti-detachment blocks and axial screws, the problems of inconvenient installation and space occupation of the disinfection cabinet hinge structure are solved, achieving convenient installation and stable flip control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNBABY IND (SHENZHEN) CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-26
AI Technical Summary
The existing hinge structure of disinfection cabinets requires multiple components to be fixed one by one during installation, especially the resistance plate and rollers, which makes installation inconvenient and takes up space.
The system employs a combination structure of hinged base, rollers, and pivot. Through the cooperation of anti-detachment blocks and axial screws, the rollers can be easily installed and positioned. Combined with elastic reset components and limit blocks, the system ensures stable door rotation and limited opening.
The hinge structure enables convenient installation and saves space. The design of the elastic reset component and limit block ensures stable door rotation and opening control.
Smart Images

Figure CN224282300U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hinge structure technology, and in particular to a hinge structure for opening doors by flipping them up and down. Background Technology
[0002] During the breastfeeding process, sterilizers are one of the essential devices for disinfecting baby products. They can effectively kill bacteria on baby products, such as using ultraviolet light to sterilize common baby items like pacifiers, bottles, and feeding spoons.
[0003] Disinfection cabinets have various door opening methods, including horizontal sliding, left and right rotation, and up and down flipping. For example, the "Top-Opening Disinfection Box" proposed in Chinese Utility Model Publication No. CN210644642U includes a shell, an inner liner inside the shell, and a door for closing the inner liner. The front end of the inner liner is open. The door is movably connected to the outer wall of the inner liner via a curved arm, and the door flips upward when opened by the curved arm. To ensure the door receives an elastic return force after rotation, the following is proposed: a rotatable base is mounted on the upper part of the outer wall of the inner liner via a pivot; the front end of the curved arm is connected to the door, and the rear end of the curved arm is connected to the rotatable base; a locking position is provided at the rear end of the curved arm; a locking block is provided on the rotatable base to cooperate with the locking position; a resistance plate is installed between the rotatable base and the outer wall of the inner liner; a spring is installed at the lower part of the outer wall of the inner liner; a pull rope is installed on the rotatable base, and the pull rope passes over a roller and connects to the spring.
[0004] When the door is flipped downwards to close, the spring can be pulled by the cord, which in turn provides a spring-like force to return the door to its original position.
[0005] However, when assembling structural components, multiple components need to be installed and fixed one by one, especially the resistance plate and rollers, which is not conducive to installation and saving space. Utility Model Content
[0006] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution to address the aforementioned problems.
[0007] To achieve the above objectives, the present invention provides the following technical solution: a hinge structure for opening and closing a container door by flipping it up and down, which provides a rotating connection for the container door when it is flipped up and down relative to the container body to close / open, including a hinge seat, a roller and a rotating shaft connected to the container body;
[0008] The hinge seat has a through hole that mates with the rotating shaft, and the hinge seat is fitted onto the rotating shaft through the through hole;
[0009] The shaft has a connecting end that protrudes from the connecting hole;
[0010] The roller has a pivot hole that mates with the connecting end, and the roller is fitted onto the connecting end of the pivot through the pivot hole;
[0011] An anti-detachment block is connected to the connecting end. The anti-detachment block is used to engage with the roller to prevent the roller from detaching from the shaft in a direction away from the hinge seat.
[0012] As a further embodiment of this utility model: the rotating shaft is integrally formed on the container body.
[0013] As a further embodiment of this utility model, it also includes a positioning post integrally formed on the container body, and a positioning hole is correspondingly provided on the hinge seat. When the hinge seat is sleeved on the rotating shaft through the connecting hole, the positioning post is correspondingly inserted into the positioning hole.
[0014] As a further embodiment of this utility model: an axial screw hole is formed on the end face of the connecting end, and an axial screw is provided on the anti-detachment block, with the axial screw cooperating with the axial screw hole;
[0015] When the axial screw is screwed into the axial screw hole, the anti-detachment block moves along the axial direction of the shaft and toward the container body.
[0016] As a further embodiment of this utility model: a rotating component is hinged on the hinged seat, and a first rotating power arm and a second rotating power arm are provided on the rotating component;
[0017] The first rotating power arm is used to connect with the container door; when the rotating part rotates, the first rotating power arm and the second rotating power arm are driven to flip up and down accordingly;
[0018] It also includes an elastic reset component installed on the container body, and a traction line installed on the second rotating power arm. The traction line passes around the roller and is connected to the force-bearing connection end of the elastic reset component.
[0019] As a further embodiment of this utility model, a limiting block is also provided on the hinge seat. The limiting block is used to block the second rotating power arm when the container door is opened to a specified opening degree, thereby limiting the container door from continuing to open.
[0020] As a further embodiment of this utility model: the second rotating arm includes a proximal end of the rotating arm that is close to the rotating member and a distal end of the rotating arm that is far from the rotating member;
[0021] The limit block engages with the far end of the rotating boom, and the traction line is connected to the far end of the rotating boom.
[0022] As a further embodiment of this utility model: the rotating component is hinged to the hinge surface of the hinge seat via a hinge shaft;
[0023] The proximal end of the rotating arm is bent toward the hinge surface away from the hinge seat, resulting in a gap between the distal end of the rotating arm and the hinge surface.
[0024] As a further embodiment of this utility model: a friction isolator is provided between the rotating member and the hinge seat. The friction isolator is sleeved on the hinge shaft and is used to reduce the rotational friction when the rotating member rotates.
[0025] As a further embodiment of this utility model: the elastic reset component includes a tension spring, both ends of which have connecting hooks, the traction line is connected to one of the connecting hooks, and the other connecting hook is connected to the container body.
[0026] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 This is a structural schematic diagram of the present invention, with the container door in the closed position;
[0029] Figure 2 This is a schematic diagram of the connection of the traction line of this utility model;
[0030] Figure 3 This is a schematic diagram of the structure of the hinge seat of this utility model sleeved on the rotating shaft, without the rollers installed;
[0031] Figure 4 This is a schematic diagram of the structure of the roller sleeved on the connecting end of this utility model, without the anti-detachment block installed;
[0032] Figure 5 This is an exploded view of the rotating component of this utility model.
[0033] The corresponding labels in the attached diagram are explained as follows:
[0034] Container body-1, container door-2, hinge seat-3, hinge surface-301, roller-4, rotating shaft-5, connecting end-501, connecting hole-6, rotating shaft hole-7, anti-detachment block-8, axial screw hole-9, axial screw-10, positioning post-11, positioning hole-12, rotating component-13, first rotating power arm-14, second rotating power arm-15, proximal end of rotating power arm-151, distal end of rotating power arm-152, elastic reset component-16, traction line-17, limit block-18, hinge shaft-19, friction isolation component-20. Detailed Implementation
[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0036] Please see Figure 1-5 A hinge structure for providing a rotatable connection for the container door 2 when it is flipped up and down relative to the container body 1 to open / close.
[0037] In some embodiments, the container may be a disinfection cabinet with disinfection function, the container body 1 corresponds to the disinfection cabinet body, and the container door 2 corresponds to the disinfection cabinet door.
[0038] In this embodiment, the hinge structure includes a hinge seat 3, a roller 4, and a rotating shaft 5 connected to the container body 1.
[0039] The hinge seat 3 has a connecting hole 6 that mates with the rotating shaft 5, and the hinge seat 3 is fitted onto the rotating shaft 5 through the connecting hole 6. The rotating shaft 5 has a connecting end 501 that protrudes from the connecting hole 6. The roller 4 has a rotating shaft hole 7 that mates with the connecting end 501, and the roller 4 is fitted onto the connecting end 501 of the rotating shaft through the rotating shaft hole 7.
[0040] An anti-detachment block 8 is connected to the connecting end 501. The anti-detachment block 8 is used to block the roller 4 to limit the roller 4 from detaching from the rotating shaft 5 in a direction away from the hinge seat 3.
[0041] In some embodiments, the rotating shaft 5 is integrally formed on the container body 1, resulting in a more robust structure.
[0042] In some embodiments, an axial screw hole 9 is formed on the end face of the connecting end 501, that is, the depth direction of the axial screw hole 9 corresponds to the axial direction of the rotating shaft 5. An axial screw 10 is provided on the anti-detachment block 8, and the axial screw 10 cooperates with the axial screw hole 9.
[0043] When the axial screw 10 is screwed into the axial screw hole 9, the anti-detachment block 8 moves along the axial direction of the rotating shaft 5 and toward the direction closer to the container body 1, compressing the axial movement stroke of the roller 4 on the connecting end 501.
[0044] As the screws are tightened, the axial travel of the rollers 4 and the hinge 3 on the rotating shaft 5 is continuously compressed. For example, the anti-detachment block 8 can continuously push the rollers 4 towards the hinge 3 along the axial direction of the rotating shaft 5, and the rollers 4 correspondingly push the hinge 3 towards the container body 1 until the axial screw 10 is tightened on the axial screw hole 9.
[0045] In some embodiments, when the axial screw 10 is tightened onto the axial screw hole 9, the roller 4 has a small amount of axial movement on the rotating shaft 5, which allows the roller 4 to rotate relatively easily while providing good connection restriction.
[0046] In this embodiment, the design of the connection structure between the hinge seat 3 and the roller 4 allows the hinge seat 3 and the roller 4 to be installed in a concentrated manner, which is convenient for installation and effectively saves space.
[0047] In some embodiments, the hinge structure further includes a positioning post 11 disposed on the container body 1, and a positioning hole 12 is correspondingly disposed on the hinge seat 3.
[0048] When the hinge seat 3 is fitted onto the rotating shaft 5 through the connecting hole 6, the positioning pin 11 can be correspondingly inserted into the positioning hole 12 to position the hinge seat 3.
[0049] In some embodiments, the positioning post 11 is integrally formed on the container body 1, resulting in a more robust structure.
[0050] In some embodiments, the length direction of the positioning pin 11 is the same as the axial direction of the rotating shaft 5. When the hinge seat 3 aligns the connecting hole 6 with the rotating shaft 5 along the axial direction of the rotating shaft 5, the positioning hole 12 can be aligned with the positioning pin 11 at the same time, and then they can be sleeved together along the axial direction of the rotating shaft 5.
[0051] In this embodiment, a rotating member 13 is hinged to the hinge seat 3. The rotating member 13 is provided with a first rotating power arm 14 and a second rotating power arm 15 arranged with the hinge point of the rotating member 13 as the center point. The first rotating power arm 14 is used to connect with the container door 2. When the rotating member 13 rotates, the first rotating power arm 14 and the second rotating power arm 15 are driven to rotate up and down accordingly.
[0052] In this embodiment, the hinge structure also includes an elastic reset member 16 installed on the container body 1, and a traction line 17 is installed on the second rotating power arm 15. The traction line 17 passes around the roller 4 and is connected to the force-bearing connection end of the elastic reset member 16.
[0053] When the container door 2 is pulled to open upwards or downwards, a first rotational force is generated by the first rotating power arm 14. At this time, the force-bearing connection end of the elastic reset member 16 is subjected to force through the traction line 17, thereby causing the elastic reset member 16 to undergo elastic deformation. After the container door 2 is released from pulling, the force generated by the elastic deformation of the elastic reset member 16 forms a second rotational force through the second rotating power arm 15 to return the container door 2 to the closed position.
[0054] The hinge seat 3 is also provided with a limit block 18. The limit block 18 is used to block the second rotating power arm 15 when the container door 2 is opened to a specified opening degree, thereby limiting the container door 2 from continuing to open and forming the maximum opening degree setting.
[0055] In this embodiment, when the container door 2 is opened to a specified opening degree, the traction line 17 and the limiting block 18 simultaneously apply force to the second rotating power arm 15, so that the traction line 17 and the limiting block 18 can simultaneously utilize the length of the second rotating power arm 15; that is, when the second rotating power arm 15 is set to be relatively long, the torque of the elastic reset member 16 pulling the container door back through the traction line can be relatively large, and similarly, the torque of the limiting block 18 resisting and restricting the container door from continuing to open is also relatively large.
[0056] On the one hand, the second rotating power arm 15 can be used for traction to return the container door to its original position, and it can also limit the opening degree of the container door by cooperating with the limiting block 18. On the other hand, when the door is opened to the maximum limited opening degree, the traction line 17 and the limiting block 18 simultaneously apply force to the second rotating power arm 15, so that the traction line 17 and the limiting block 18 can utilize the length of the second rotating power arm 15 at the same time. Only a longer second rotating power arm is needed to obtain the two torque designs mentioned above.
[0057] In some embodiments, the second rotating arm 15 includes a proximal end 151 of the rotating arm close to the rotating member and a distal end 152 of the rotating arm away from the rotating member.
[0058] In some embodiments, the limiting block 18 is engaged with the distal end 152 of the rotating boom, and the traction line 17 is connected to the distal end 152 of the rotating boom.
[0059] In some embodiments, the rotating member 13 is hinged to the hinge surface 301 of the hinge seat 3 via a hinge shaft 19.
[0060] In some embodiments, when the container door is a front door or a rear door, the hinge surface is the left or right side of the hinge seat.
[0061] In some embodiments, when the container door is a front door and the hinge is connected to the left side of the container body, the hinge surface is the left side of the hinge.
[0062] In some embodiments, when the container door is a front door and the hinge is connected to the right side of the container body, the hinge surface is the right side of the hinge.
[0063] In some embodiments, the proximal end 151 of the rotating arm is bent toward the hinge surface 301 away from the hinge seat, resulting in a wire-passing gap between the distal end 152 of the rotating arm and the hinge surface 301. The wire-passing gap facilitates the connection of the traction wire 17 to the distal end 152 of the rotating arm by means of winding, sleeve, or other methods. On the other hand, it effectively reduces rotational friction with the hinge seat during rotation.
[0064] In some embodiments, a friction isolator 20 is provided between the rotating member 13 and the hinge seat 3, the friction isolator 20 being used to separate the rotating member 13 from the hinge seat 3.
[0065] In some embodiments, the friction isolator 20 is sleeved on the hinge shaft 19. The friction isolator 20 is used to reduce the friction force when the rotating member 13 rotates: for example, the friction area is reduced. Correspondingly, the contact surface between the friction isolator and the rotating member is set to be smaller, and the contact surface between the friction isolator and the hinge seat is also set to be smaller; for example, the friction isolator is a thrust ball bearing.
[0066] In some embodiments, the elastic reset member 16 includes a tension spring, both ends of which have connecting hooks. The traction line 17 is connected to one of the connecting hooks, and the other connecting hook is connected to the container body 1.
[0067] In some embodiments, one end of the traction line 17 is connected to the distal end 152 of the second rotating arm, and the other end of the traction line 17 passes around the roller 4 and is connected to the connecting hook of the tension spring.
[0068] When the door is opened, the second rotating power arm 15, which rotates around the rotating part 13, pulls the traction line 17, causing the tension spring to be pulled and undergo elastic deformation.
[0069] In some embodiments, the container door is configured to flip downwards to open.
[0070] like Figure 5 As shown, in some embodiments, protrusions can be provided on both sides of the roller to reduce friction during rotation, thereby reducing the contact area between the roller and the hinge seat.
[0071] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A hinge structure for opening and closing a container door by flipping it up and down, providing a rotatable connection for the container door when it flips up and down relative to the container body to close / open, characterized in that, Includes a hinge, rollers, and a pivot connected to the container body; The hinge seat has a through hole that mates with the rotating shaft, and the hinge seat is fitted onto the rotating shaft through the through hole; The shaft has a connecting end that protrudes from the connecting hole; The roller has a pivot hole that mates with the connecting end, and the roller is fitted onto the connecting end of the pivot through the pivot hole; An anti-detachment block is connected to the connecting end. The anti-detachment block is used to cooperate with the roller to prevent the roller from detaching from the shaft in a direction away from the hinge seat.
2. The hinge structure according to claim 1, characterized in that, The rotating shaft is integrally molded onto the container body.
3. The hinge structure according to claim 2, characterized in that, It also includes a positioning post integrally formed on the container body, and a corresponding positioning hole is provided on the hinge seat. When the hinge seat is sleeved on the rotating shaft through the connecting hole, the positioning post is correspondingly inserted into the positioning hole.
4. The hinge structure according to claim 1, characterized in that, An axial screw hole is formed on the end face of the connecting end, and an axial screw is provided on the anti-loosening block, with the axial screw engaging with the axial screw hole; When the axial screw is screwed into the axial screw hole, the anti-detachment block moves along the axial direction of the shaft and toward the container body.
5. The hinge structure according to any one of claims 1-4, characterized in that, A rotating component is hinged to the hinged base, and a first rotating power arm and a second rotating power arm are provided on the rotating component; The first rotating power arm is used to connect with the container door; when the rotating part rotates, the first rotating power arm and the second rotating power arm are driven to flip up and down accordingly; It also includes an elastic reset component installed on the container body, and a traction line installed on the second rotating power arm. The traction line passes around the roller and is connected to the force-bearing connection end of the elastic reset component.
6. The hinge structure according to claim 5, characterized in that, The hinged base is also equipped with a limit block, which is used to block the second rotating arm when the container door is opened to a specified opening degree, thereby limiting the container door from continuing to open.
7. The hinge structure according to claim 6, characterized in that, The second rotating arm includes a proximal end of the rotating arm that is close to the rotating component and a distal end of the rotating arm that is far from the rotating component. The limit block engages with the far end of the rotating boom, and the traction line is connected to the far end of the rotating boom.
8. The hinge structure according to claim 7, characterized in that, The rotating component is hinged to the hinge surface of the hinge seat via a hinge shaft; The proximal end of the rotating arm is bent toward the hinge surface away from the hinge seat, resulting in a gap between the distal end of the rotating arm and the hinge surface.
9. The hinge structure according to claim 8, characterized in that, A friction isolator is provided between the rotating component and the hinge seat. The friction isolator is sleeved on the hinge shaft and is used to reduce the rotational friction when the rotating component rotates.
10. The hinge structure according to claim 5, characterized in that, The elastic reset element includes a tension spring, with connecting hooks at both ends. A traction line is connected to one of the connecting hooks, and the other connecting hook is connected to the container body.