A type of quick-release hinge

Abstract

This utility model provides a quick-assembly hinge, including inner and outer leaf panels and a rotating assembly for relative rotation between the outer and inner leaf panels. The rotating assembly includes a rotating shaft and a silent sleeve. One side of each of the inner and outer leaf panels is rolled inward to form an open bushing. The silent sleeve is fitted onto the rotating shaft, and the rotating shaft is rotatably connected to the bushing via the silent sleeve. The bushing has a positioning sleeve for limiting the vertical movement of the rotating shaft. The positioning sleeve is fitted onto both ends of the rotating shaft and fixedly installed at the upper and lower ports of the bushing. A positioning ring for limiting the vertical movement of the silent sleeve is provided between the positioning sleeve and the silent sleeve. The positioning ring is fitted onto the rotating shaft and tightly connected between the positioning sleeve and the silent sleeve. The structure is simple, allows for quick assembly, reduces assembly costs, minimizes gaps, enhances rotational stability, avoids noise generation, is reliable and practical, and ensures product quality.

Description

Technical Field

[0001] This utility model relates to the field of hinge technology, specifically a quick-install hinge. Background Technology

[0002] Currently, a connector is installed at the connection between the frame and the door, and this connector commonly uses a hinge. The structure of this hinge typically includes an outer leaf fixed to the frame and an inner leaf fixed to the door. The inner leaf is connected to the outer leaf via a pivot, allowing the door to open and close on the frame. This design is simple and easy to operate. Furthermore, existing hinges often include bushings on both the inner and outer leaves to accommodate the pivot, facilitating assembly and ensuring smoother and more stable door rotation.

[0003] However, existing hinges have the following shortcomings in practical applications:

[0004] 1) In the existing hinges, the shaft is hydraulically installed into the bushing during assembly, which is costly. After a long period of use, there is a gap between the shaft and the bushing, which easily accumulates dirt, affecting rotational stability and generating noise due to shaking, thus affecting the performance.

[0005] 2) Existing hinges are prone to loosening due to vertical movement of the pivot and bushing during use, making them difficult to use normally. To address this, spot welding is used to add limiting protrusions to the upper and lower ends of the bushing to prevent the pivot from moving up or down. This process is cumbersome and makes it difficult to replace or maintain the pivot, affecting the quality of the product. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a quick-install hinge with a simple structure, which can be quickly assembled, reduces assembly costs, reduces gaps, enhances rotational stability, avoids noise generation, is reliable and practical, and ensures the quality of product use.

[0007] The objective of this invention is achieved as follows: A quick-release hinge includes an inner sheet, an outer sheet, and a rotating assembly for relative rotation between the outer and inner sheets. The rotating assembly includes a rotating shaft and a silent sleeve. One side of each of the inner and outer sheets is rolled inward to form an open bushing. The silent sleeve is fitted onto the rotating shaft, and the rotating shaft is rotatably connected to the bushing via the silent sleeve. The bushing is provided with a positioning sleeve to restrict the vertical movement of the rotating shaft. The positioning sleeve is fitted onto both ends of the rotating shaft and fixedly installed at the upper and lower ports of the bushing. A positioning ring is provided between the positioning sleeve and the silent sleeve to restrict the vertical movement of the silent sleeve. The positioning ring is fitted onto the rotating shaft and tightly connected between the positioning sleeve and the silent sleeve.

[0008] Based on the above optimization, the silent sleeve assembly includes an upper silent sleeve and a lower silent sleeve. The upper silent sleeve and the lower silent sleeve are respectively fitted onto the rotating shaft and are slidably mounted inside the bushing. The positioning ring and the positioning sleeve slide into the bushing from the upper port and the lower port in sequence and are fitted onto the upper end and the lower end of the rotating shaft.

[0009] Based on the above optimization, there is an opening between the inner page and the bushing. The upper and lower silent sleeves of the silent sleeve assembly are respectively provided with inner positioning protrusions. The inner positioning protrusions are adapted to slide into the bushing as the upper and lower silent sleeves slide from the outside to the inside.

[0010] Based on the above optimization, there is an opening between the outer leaf and the bushing, and the positioning sleeve is provided with an outer positioning protrusion. The outer positioning protrusion is adapted to slide into the bushing as the positioning sleeve slides from the outside to the inside.

[0011] Based on the above optimization, the inner positioning protrusion and the outer positioning protrusion are respectively set as triangular protrusions for restricting left and right movement, and the triangular protrusions are adapted to slide from the outside to the inside on the corresponding opening and closing positions.

[0012] Based on the above optimization, the upper silent sleeve, lower silent sleeve, and positioning sleeve are respectively interference-fitted with the bushing.

[0013] Based on the above optimization, the upper silent sleeve, lower silent sleeve, and positioning sleeve are respectively set as silicone sleeves.

[0014] The advantages of this utility model are:

[0015] 1) Through the structural cooperation of the shaft, silent sleeve, positioning sleeve, positioning ring and the inner and outer leaf blade bushings, the split assembly is adopted, which can quickly assemble, reduce the generation of gaps, avoid the separation of the shaft and bushing during use, improve the smoothness of rotation, and make it reliable and practical.

[0016] 2) The structure of the upper silent sleeve, lower silent sleeve and positioning sleeve is adopted. Under the action of their own characteristics, the noise generation is effectively reduced, achieving a silent effect and improving the smoothness of transmission.

[0017] 3) The positioning sleeve facilitates the quick assembly and disassembly of the hinges, ensuring the transmission stability of the product, and also allows for better maintenance and replacement, ensuring the product's performance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention.

[0019] Figure 2 This is a front view of a preferred embodiment of the present invention.

[0020] Figure 3 This is a cross-sectional view of a preferred embodiment of the present invention. Detailed Implementation

[0021] The present invention will now be further described with reference to the accompanying drawings.

[0022] According to the appendix Figures 1 to 3 As shown, the quick-release hinge of this utility model includes an inner page 1, an outer page 2, and a rotating assembly for relative rotation between the outer page 2 and the inner page 1. The rotating assembly includes a rotating shaft 3 and a silent sleeve. One side of each of the inner page 1 and the outer page 2 is rolled inward to form an open bushing 4. The silent sleeve is fitted onto the rotating shaft 3, and the rotating shaft 3 is rotatably connected to the bushing 4 via the silent sleeve. The bushing 4 is provided with a positioning sleeve 5 to restrict the vertical movement of the rotating shaft 3. The positioning sleeve 5 is fitted onto both ends of the rotating shaft 3 and fixedly installed at the upper and lower ends of the bushing 4. A positioning ring 6 is provided between the positioning sleeve 5 and the silent sleeve to restrict the vertical movement of the silent sleeve. The positioning ring 6 is fitted onto the rotating shaft 3 and tightly connected between the positioning sleeve 5 and the silent sleeve.

[0023] The rotating shaft 3, the silent sleeve, the positioning sleeve 5, the positioning ring 6, and the bushing 4 of the inner leaf 1 and the outer leaf 2 are structurally matched. The split assembly allows for quick assembly, reduces gaps, and prevents the rotating shaft 3 from separating from the bushing 4 during use, thus improving the smoothness of rotation and making it reliable and practical.

[0024] Reference Figures 1 to 3 As shown, further detailed, the silent sleeve assembly includes an upper silent sleeve 7 and a lower silent sleeve 8. The upper silent sleeve 7 and the lower silent sleeve 8 are respectively fitted onto the rotating shaft 3 and simultaneously slidably mounted on the shaft sleeve 4. The positioning ring 6 and the positioning sleeve 5 slide sequentially into the shaft sleeve 4 from the upper port and the lower port, respectively, and are fitted onto the upper end and the lower end of the rotating shaft 3.

[0025] The separate upper silent sleeve 7 and lower silent sleeve 8 allow the rotating shaft 3 to slide quickly into the bushing 4, making disassembly and assembly convenient. Furthermore, the positioning ring 6 effectively restricts the upper silent sleeve 7 and lower silent sleeve 8 from moving up and down within the bushing 4. In conjunction with the positioning sleeve 5, it prevents the rotating shaft 3 from moving up and down and detaching from the bushing 4, thus strengthening the connection and ensuring the stability of the product's rotation.

[0026] Reference Figures 1 to 3 As shown, in further detail, the upper silent sleeve 7, the lower silent sleeve 8, and the positioning sleeve 5 are respectively interference-fitted with the bushing 4.

[0027] Furthermore, there is an opening between the inner page 1 and the bushing 4. The upper silent sleeve 7 and the lower silent sleeve 8 of the silent sleeve assembly are respectively provided with an inner positioning protrusion 9. The inner positioning protrusion 9 is adapted to slide into the bushing 4 from the outside as the upper silent sleeve 7 and the lower silent sleeve 8 slide inward to the bushing 4.

[0028] Furthermore, there is an opening between the outer leaf 2 and the bushing 4, and the positioning sleeve 5 is provided with an outer positioning protrusion 10. The outer positioning protrusion 10 is adapted to slide into the bushing 4 as the positioning sleeve 5 slides from the outside to the inside.

[0029] The inner positioning protrusion 9 and the outer positioning protrusion 10 are respectively set as triangular protrusions for restricting left and right movement, and the triangular protrusions are adapted to slide from the outside to the inside on the corresponding opening and closing positions.

[0030] With the cooperation of the inner positioning protrusion 9 and the outer positioning protrusion 10 of this structure, the upper silent sleeve 7, the outer silent sleeve, and the positioning sleeve 5 are firmly assembled on the inner leaf 1 and the outer leaf 2, while reducing gaps, avoiding dirt accumulation, and ensuring smooth rotation and stability.

[0031] In addition, the upper silent sleeve 7, the lower silent sleeve 8, and the positioning sleeve 5 are all made of silicone. Due to the inherent characteristics of the upper silent sleeve 7, the lower silent sleeve 8, and the positioning sleeve 5, noise generation is effectively reduced, achieving a silent effect and improving transmission smoothness.

[0032] The above specific embodiments are only specific implementations of the present utility model with better effects. All structures that are the same as or equivalent to the quick-install hinge of the present utility model are within the protection scope of the present utility model.

Claims

1. A quick-mounting hinge comprising an inner leaf (1), an outer leaf (2) and a rotating assembly for the relative rotation of the outer leaf (2) with respect to the inner leaf (1), characterized in that: The rotating assembly includes a rotating shaft (3) and a silent sleeve. One side of the inner sheet (1) and the outer sheet (2) are respectively rolled inward to form an open bushing (4). The silent sleeve is fitted onto the rotating shaft (3). The rotating shaft (3) is rotatably connected to the bushing (4) through the silent sleeve. The bushing (4) is provided with a positioning sleeve (5) for restricting the vertical movement of the rotating shaft (3). The positioning sleeve (5) is fitted onto the ends of the rotating shaft (3) and fixedly installed on the upper and lower ports of the bushing (4). A positioning ring (6) for restricting the vertical movement of the silent sleeve is provided between the positioning sleeve (5) and the silent sleeve. The positioning ring (6) is fitted onto the rotating shaft (3) and tightly connected between the positioning sleeve (5) and the silent sleeve.

2. The quick-mounting hinge according to claim 1, characterized in that: The silent sleeve assembly includes an upper silent sleeve (7) and a lower silent sleeve (8). The upper silent sleeve (7) and the lower silent sleeve (8) are respectively fitted onto the rotating shaft (3) and are integrally slidably mounted in the bushing (4) with the rotating shaft (3). The positioning ring (6) and the positioning sleeve (5) slide into the bushing (4) from the upper port and the lower port respectively and are fitted onto the upper end and the lower end of the rotating shaft (3).

3. The quick-mounting hinge according to claim 1, characterized in that: There is an opening between the inner page (1) and the bushing (4). The upper silent sleeve (7) and the lower silent sleeve (8) of the silent sleeve assembly are respectively provided with an inner positioning protrusion (9). The inner positioning protrusion (9) slides into the bushing (4) from the outside to the inside as the upper silent sleeve (7) and the lower silent sleeve (8) slide into the bushing (4).

4. The quick-mounting hinge according to claim 3, characterized in that: There is an opening between the outer leaf (2) and the bushing (4). The positioning sleeve (5) is provided with an outer positioning protrusion (10). The outer positioning protrusion (10) slides into the bushing (4) from the outside to the inside as the positioning sleeve (5) slides into the opening.

5. The quick-mounting hinge according to claim 4, characterized in that: The inner positioning protrusion (9) and the outer positioning protrusion (10) are respectively set as triangular protrusions for restricting left and right movement, and the triangular protrusions are adapted to slide from the outside to the inside on the corresponding opening and closing positions.

6. The quick-mounting hinge according to claim 2, wherein: The upper silent sleeve (7), lower silent sleeve (8), and positioning sleeve (5) are respectively interference-fitted with the bushing (4).

7. The quick-mounting hinge according to claim 2, wherein: The upper silent sleeve (7), lower silent sleeve (8), and positioning sleeve (5) are respectively made of silicone.

Images