Hinge with supporting and limiting structure
By installing a spring support device between the upper hinge and the lower hinge connected to the hinge shaft, the problem of additional space occupied by the air spring strut when the box door is flipped upward, achieving the effect of simple structure, convenient installation and reducing the internal space of the box.
Patent Information
- Application Number
- CN202422392858.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-30
AI Technical Summary
In the prior art, an additional gas spring strut is required when the box door is flipped upward, resulting in an increase in the supporting kit and occupying the interior space of the box.
A spring support device is installed between the upper hinge and the lower hinge connected to the hinge shaft, including a spring, a guide rod and a guide rod rotation shaft, and the spring rebound force maintains the angle of the hinge sheet, eliminating auxiliary support components such as air spring struts.
It realizes the need for upward flipping of the box door, while reducing the space inside the box, making it simple in structure and easy to install.
Smart Images

Figure CN223119749U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a hinge mechanism, in particular to a hinge with a built-in support and limit structure. Background Art
[0002] At present, when the box door is opened by flipping upwards, it is mainly flipped by using a common hinge, and an additional gas spring strut is installed on the box door for auxiliary support. This method not only increases the number of supporting parts, but also the additional gas spring struts and the like will additionally occupy a part of the internal space of the box body. Summary of the Invention
[0003] The purpose of the utility model is to overcome the defects and deficiencies of the prior art, and provide a hinge with a built-in support and limit structure, which has a simple structure, is convenient to install, and reduces the occupied space inside the box body.
[0004] To achieve the above purpose, the technical solution of the utility model is: a hinge with a built-in support and limit structure, including an upper hinge and a lower hinge connected together by a hinge shaft, characterized in that: a spring support device is further installed between the upper hinge and the lower hinge.
[0005] The spring support device includes a spring, a guide rod and a guide rod shaft. The guide rod is installed on the lower hinge. The spring is sleeved on the guide rod. One end of the guide rod is sleeved on the guide rod shaft, and the other end of the guide rod is connected to the end of the upper hinge far from the hinge shaft.
[0006] A connecting piece is installed at the end of the upper hinge far from the hinge shaft, and the other end of the guide rod is connected to the connecting piece through a spring stopper.
[0007] By adding a spring support device between the two hinges, the utility model enables the hinges to maintain a specific angle between the two hinge blades through the rebound force generated after the spring is compressed in the open and closed states, meets the requirement of the box door to flip upwards, and can save other auxiliary support components such as gas spring struts, reducing the occupied space inside the box body. Description of the Drawings
[0008] Figure 1 is a schematic structural diagram of the utility model.
[0009] Figure 2 is an exploded view of the components of the utility model.
[0010] Figure 3 is a schematic diagram of the closed state of the utility model with the box door.
[0011] Figure 4 is a schematic diagram of the open state of the utility model with the box door.
[0012] In the figure: hinge rotating shaft 1, upper hinge 2, lower hinge 3, spring support device 4, spring 5, guide rod 6, guide rod rotating shaft 7, connecting piece 8, spring stop 9. Specific implementation manner
[0013] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.
[0014] See Figure 1 - Figure 2 , a hinge with a self - supporting and limiting structure, comprising an upper hinge 2 and a lower hinge 3 connected together through a hinge rotating shaft 1, and a spring support device 4 is further installed between the upper hinge 2 and the lower hinge 3.
[0015] The spring support device 4 includes a spring 5, a guide rod 6 and a guide rod rotating shaft 7. The guide rod 6 is installed on the lower hinge 3, the spring 5 is sleeved on the guide rod 6, one end of the guide rod 6 is sleeved on the guide rod rotating shaft 7, a connecting piece 8 is installed at one end of the upper hinge 2 away from the hinge rotating shaft 1, and the other end of the guide rod 6 is connected to the connecting piece 8 through a spring stop 9.
[0016] See Figure 3 - Figure 4 , during the process of the box door rotating from the closed state to the open state, the spring 5 is first compressed. When the center of the guide rod rotating shaft 7 crosses the dead - point position between the spring stop 9 and the hinge rotating shaft 1, the spring 5 returns from the compressed state to the initial state, the box door is propped up, and without external force, the box door will always remain in the upward - open state.
Claims
1. A hinge with a self - contained support and limit structure, comprising an upper hinge (2) and a lower hinge (3) connected together by a hinge rotating shaft (1), characterized in that: A spring support device (4) is also installed between the upper hinge (2) and the lower hinge (3).
2. The hinge with a self - supporting and limiting structure according to claim 1, wherein: The spring support device (4) includes a spring (5), a guide rod (6) and a guide rod rotating shaft (7). The guide rod (6) is installed on the lower hinge (3). The spring (5) is sleeved on the guide rod (6). One end of the guide rod (6) is sleeved on the guide rod rotating shaft (7), and the other end of the guide rod (6) is connected to the end of the upper hinge (2) away from the hinge rotating shaft (1).
3. The hinge with a self - supporting and limiting structure according to claim 2, wherein: A connecting piece (8) is installed at the end of the upper hinge (2) away from the hinge rotating shaft (1). The other end of the guide rod (6) is connected to the connecting piece (8) through a spring stopper (9).