A cold storage door hinge
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU JINGXUE INSULATION TECH CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-08-07
AI Technical Summary
[0003]现有技术中,国内的冷库平开门铰链具有很大的局限性,只能配套磁吸式密封条使用,无法配套管状密封条使用
[0018]本实用新型,通过门框本体和门板本体的轴杆组件连接,实现了冷库平开门的灵活转动功能,安装槽与移动块的配合,结合连接件穿过连接孔连接门板和门框,让铰链与门体、门框的安装更稳固且便于调节,密封件的设置能增强门体关闭时的密封性,减少冷库内冷量流失,而通过移动块与连接件的直接接触,利用物理挤压或推拉调节密封件的压紧程度,可根据实际使用需求优化密封效果,适应不同工况下的密封要求,提升冷库的保温性能,降低能耗。
Smart Images

Figure CN224606253U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hinge technology, and in particular to a hinge for a cold storage swing door. Background Technology
[0002] Cold storage doors are doors installed in cold storage equipment, freezer rooms, and other refrigerated environments to provide insulation and airtightness. With advancements in refrigeration and freezing technology, cold storage projects have expanded into more and more fields. The increasing reach of refrigeration and freezing technology across various sectors has, to some extent, increased the demand for cold storage facilities, leading to a growing demand for cold storage panels.
[0003] In the current technology, the hinges for cold storage swing doors in China have great limitations. They can only be used with magnetic sealing strips and cannot be used with tubular sealing strips. Utility Model Content
[0004] The purpose of this utility model is to solve the problems existing in the prior art and to propose a cold storage swing door hinge.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A hinge for a cold storage swing door includes a hinge, the hinge comprising a door frame body and a door panel body, the door frame body and the door panel body being connected by a shaft assembly, a plurality of mounting grooves being provided on one side of both the door frame body and the door panel body, each mounting groove containing a movable block, a plurality of connecting holes being provided on one side of both the door panel body and the door frame body, the plurality of connecting holes being connected to the corresponding mounting grooves, and a door panel and a door frame being connected to one side of both the door panel body and the door frame body respectively by connectors;
[0007] A sealing element is provided on one side of the door frame. One side of the sealing element is in contact with the door panel. The connecting parts of the door panel and the door frame are directly in contact through the moving block and the hinge. The movement is transmitted to the door panel or door frame through physical squeezing or pushing and pulling, and the tightness of the sealing element is adjusted.
[0008] Preferably, the sealing element is a tubular sealing strip.
[0009] Preferably, a plurality of first slots are provided on one side of the movable block, and a plurality of second slots are provided on one side of the inner wall of the mounting groove. The plurality of first slots and second slots are interlocked with each other, and both the plurality of first slots and second slots are serrated.
[0010] Preferably, the shaft assembly includes a shaft rotatably mounted on the door frame body, a connecting block is provided on one side of the door panel body, the shaft rotatably passes through the connecting block and is rotatably connected to the connecting block, and a floating opening and sinking closing assembly is provided on the outer periphery of the shaft.
[0011] Preferably, a retaining ring is provided on the outer periphery of the shaft, and the outer periphery of the retaining ring is in contact with the door frame body.
[0012] Preferably, the connector is a bolt, which moves through the movable block and the connecting hole to connect with the corresponding door panel or door frame.
[0013] Preferably, the floating-opening and sinking-closing assembly includes two hexagonal studs disposed on the outer periphery of the shaft. A first slider and a second slider are respectively disposed on the adjacent sides of the two hexagonal studs. A first groove is provided on one side of the first slider, and a second groove is provided on one side of the second slider. The first groove and the second groove are adapted to each other. A limiting component is provided at the bottom of the door frame body.
[0014] Preferably, the floating-opening and sinking-closing assembly includes two hexagonal studs disposed on the outer periphery of the shaft. A first slider and a second slider are respectively disposed on the adjacent sides of the two hexagonal studs. A first groove is provided on one side of the first slider, and a second groove is provided on one side of the second slider. The first groove and the second groove are adapted to each other. A limiting component is provided at the bottom of the door frame body.
[0015] Preferably, a limiting groove is provided on one side of the connecting block, and the limiting groove is adapted to a hexagonal stud.
[0016] Preferably, the limiting component includes a threaded hole on one side of the door frame body, and a screw seat is threaded into the threaded hole, wherein one side of one of the hexagonal studs contacts the top of the screw seat.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] This invention achieves flexible rotation of the cold storage swing door through the connection of the door frame body and the door panel body via a shaft assembly. The cooperation between the mounting groove and the moving block, combined with the connecting piece passing through the connecting hole to connect the door panel and the door frame, makes the installation of the hinge with the door body and door frame more stable and easier to adjust. The setting of the sealing element can enhance the sealing performance when the door is closed, reducing the loss of cold energy in the cold storage. By directly contacting the moving block and the connecting piece, the tightness of the sealing element can be adjusted by physical compression or pushing and pulling, which can optimize the sealing effect according to actual use needs, adapt to the sealing requirements under different working conditions, improve the heat preservation performance of the cold storage, and reduce energy consumption. Attached Figure Description
[0019] Figure 1 This is an overall schematic diagram of a magnetic semi-recessed door hinge for a cold storage facility proposed in this utility model;
[0020] Figure 2 This is a schematic diagram of a magnetic semi-recessed door hinge for a cold storage facility proposed in this utility model.
[0021] Figure 3 This is a schematic diagram of the installation groove of a magnetic semi-recessed door hinge for a cold storage proposed in this utility model.
[0022] Figure 4 This is a schematic diagram of the internal structure of the connecting block of a magnetic semi-recessed door hinge for a cold storage facility, as proposed in this utility model.
[0023] Figure 5 This is a disassembly diagram of the door frame body and door panel body of a magnetic semi-recessed door hinge for cold storage proposed in this utility model.
[0024] Figure 6 This is a schematic diagram of the first and second sliders of a magnetic semi-recessed door hinge for a cold storage proposed in this utility model.
[0025] Figure 7 This is a schematic diagram of the first and second grooves of a magnetic semi-recessed door hinge for a cold storage proposed in this utility model.
[0026] In the diagram: 1. Hinge; 2. Door frame body; 3. Door panel body; 4. Mounting groove; 5. Moving block; 6. Connecting hole; 7. Door panel; 8. Door frame; 9. Seal; 10. Shaft; 11. Connecting block; 12. First slot; 13. Second slot; 14. Hexagonal stud; 15. First slider; 16. Second slider; 17. First groove; 18. Second groove; 19. Snap ring; 20. Limiting groove; 21. Threaded hole; 22. Threaded seat. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0028] Reference Figures 1 to 7 A hinge for a cold storage swing door includes a hinge, the hinge comprising a door frame body and a door panel body, the door frame body and the door panel body being connected by a shaft assembly, a plurality of mounting grooves being provided on one side of both the door frame body and the door panel body, each of the plurality of mounting grooves containing a movable block, a plurality of connecting holes being provided on one side of both the door panel body and the door frame body, the plurality of connecting holes being connected to the corresponding mounting grooves, and a door panel and a door frame being connected to one side of both the door panel body and the door frame body respectively by connectors;
[0029] A sealing element is provided on one side of the door frame. One side of the sealing element is in contact with the door panel. The connecting parts of the door panel and the door frame are directly in contact through the moving block and the hinge. The movement is transmitted to the door panel or door frame through physical squeezing or pushing and pulling, and the tightness of the sealing element is adjusted.
[0030] In use, this device achieves flexible rotation of the cold storage swing door through the shaft assembly connecting the door frame and door panel. The cooperation between the mounting groove and the moving block, combined with the connector passing through the connecting hole to connect the door panel and door frame, makes the installation of the hinges to the door and door frame more stable and easier to adjust. The sealing element enhances the sealing performance when the door is closed, reducing the loss of cold air inside the cold storage. Through the direct contact between the moving block and the connector, the tightness of the sealing element can be adjusted by physical compression or pushing and pulling, which can optimize the sealing effect according to actual use needs, adapt to the sealing requirements under different working conditions, improve the insulation performance of the cold storage, and reduce energy consumption.
[0031] Furthermore, the sealing element is a tubular sealing strip. By setting the sealing element as a tubular sealing strip, the tubular structure can produce more uniform deformation when compressed, thereby fitting more tightly to the door panel surface and further enhancing the sealing performance. The tubular sealing strip has good elasticity and aging resistance, which can extend the service life of the sealing element and ensure stable sealing effect during long-term use.
[0032] Furthermore, the movable block has several first slots on one side and several second slots on one side of the inner wall of the mounting groove. The first and second slots interlock with each other, and the first slots on the movable block interlock with the second slots on the inner wall of the mounting groove. This structure restricts the movement of the movable block within the mounting groove, preventing it from loosening or shifting during door opening and closing, ensuring that the tightening of the adjusted seal remains stable, and improving the reliability of the hinge. The first and second slots are all serrated. The serrated interlocking structure provides more adjustment levels, allowing for more precise adjustment of the movable block's position, and thus more accurate control of the seal's tightening, resulting in a better sealing effect.
[0033] Furthermore, the shaft assembly includes a shaft rotatably mounted on the door frame body, a connecting block provided on one side of the door panel body, the shaft movably passing through the connecting block and rotatably connected to it, and a floating-opening and sinking-closing assembly provided on the outer periphery of the shaft. In the shaft assembly, the shaft is rotatably mounted on the door frame body and movably passes through the connecting block of the door panel body and is rotatably connected to it, ensuring the flexibility and stability of the door rotation. The floating-opening and sinking-closing assembly on the outer periphery of the shaft cooperates with the shaft to realize the floating-opening and sinking-closing function during the door rotation, making the opening and closing of the door more effortless and smooth, and improving the user experience.
[0034] Furthermore, the connecting component is a bolt, which movably passes through the moving block and the connecting hole to connect with the corresponding door panel or door frame. The bolted connection features a simple structure, a strong connection, and facilitates installation and disassembly. Simultaneously, by tightening or loosening the bolt, the position of the moving block can be easily adjusted, thereby adjusting the tightness of the seal.
[0035] Furthermore, a retaining ring is provided on the outer periphery of the shaft, and the outer periphery of the retaining ring is in contact with the door frame body.
[0036] Furthermore, the floating-opening and sinking-closing assembly includes two hexagonal studs disposed on the outer periphery of the shaft. A first slider and a second slider are respectively disposed on the adjacent sides of the two hexagonal studs. A first groove is provided on one side of the first slider, and a second groove is provided on one side of the second slider. The first groove and the second groove are adapted to each other. A limiting component is provided at the bottom of the door frame body. The cooperation of the two hexagonal studs, the first slider and the second slider in the floating-opening and sinking-closing assembly, as well as the adaptation of the first groove and the second groove, can realize the floating-opening and sinking-closing function of the door. That is, the door can automatically float open when opened to a certain angle and automatically sink close when closed, which improves the convenience of door use. The limiting component can limit the floating-opening and sinking-closing angle to prevent the door from being opened too much or closed incompletely, and ensure the standardization of door operation.
[0037] Furthermore, a limiting groove is provided on one side of the connecting block. The limiting groove is adapted to the hexagonal stud. The limiting groove on one side of the connecting block is adapted to the hexagonal stud. The limiting groove can position and guide the hexagonal stud, prevent the hexagonal stud from shifting during rotation, ensure the precise cooperation between the components of the floating and sinking assembly, ensure the normal realization of the floating and sinking functions, and also enhance the stability of the overall hinge structure.
[0038] Furthermore, the limiting component includes a threaded hole on one side of the door frame body, with a screw seat threaded into the threaded hole. One side of one of the hexagonal studs contacts the top of the screw seat. The screw seat in the threaded hole of the limiting component contacts one of the hexagonal studs. By rotating the screw seat, its position in the threaded hole can be adjusted, thereby changing the limiting force and position on the hexagonal stud. This allows for precise adjustment of the door's opening and closing angles to adapt to different usage scenarios and space requirements, improving the applicability and flexibility of the hinge.
[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A hinge for a cold storage swing door, comprising a hinge (1), characterized in that: The hinge (1) includes a door frame body (2) and a door panel body (3). The door frame body (2) and the door panel body (3) are connected by a shaft (10) assembly. A plurality of mounting grooves (4) are provided on one side of the door frame body (2) and the door panel body (3). A movable block (5) is provided in each of the plurality of mounting grooves (4). A plurality of connecting holes (6) are provided on one side of the door panel body (3) and the door frame body (2). The plurality of connecting holes (6) are connected to the corresponding mounting grooves (4). A door panel (7) and a door frame (8) are respectively connected to one side of the door panel body (3) and the door frame body (2) through connectors. A sealing element (9) is provided on one side of the door frame (8). One side of the sealing element (9) is in contact with the door panel (7). The connecting parts of the door panel (7) and the door frame (8) are directly in contact through the moving block (5) and the hinge (1). The movement is transmitted to the door panel (7) or the door frame (8) through physical squeezing or pushing and pulling, and the tightness of the sealing element (9) is adjusted.
2. The cold storage swing door hinge according to claim 1, characterized in that: The sealing element (9) is a tubular sealing strip.
3. A cold storage swing door hinge according to claim 1, characterized in that: The movable block (5) has a plurality of first slots (12) on one side, and the mounting groove (4) has a plurality of second slots (13) on one side of its inner wall. The plurality of first slots (12) and second slots (13) are engaged with each other, and the plurality of first slots (12) and second slots (13) are both serrated.
4. A cold storage swing door hinge according to claim 2, characterized in that: The shaft (10) assembly includes a shaft (10) rotatably mounted on the door frame body (2), a connecting block (11) is provided on one side of the main body of the door panel (7), the shaft (10) rotatably passes through the connecting block (11) and is rotatably connected to the connecting block (11), and a floating opening and sinking closing assembly is provided on the outer periphery of the shaft (10).
5. A cold storage swing door hinge according to claim 1, characterized in that: The connector is a bolt, which moves through the movable block (5) and the connecting hole (6) to connect with the corresponding door panel (7) or door frame (8).
6. A cold storage swing door hinge according to claim 1, characterized in that: A retaining ring (19) is provided on the outer periphery of the shaft (10), and the outer periphery of the retaining ring (19) is in contact with the door frame body (2).
7. A cold storage swing door hinge according to claim 1, characterized in that: The floating-opening and sinking-closing assembly includes two hexagonal studs (14) disposed on the outer periphery of the shaft (10). A first slider (15) and a second slider (16) are respectively disposed on the adjacent side of the two hexagonal studs (14). A first groove (17) is provided on one side of the first slider (15), and a second groove (18) is provided on one side of the second slider (16). The first groove (17) and the second groove (18) are adapted to each other. A limiting component is provided at the bottom of the door frame body (2).
8. A cold storage swing door hinge according to claim 1, characterized in that: The floating-opening and sinking-closing assembly includes two hexagonal studs (14) disposed on the outer periphery of the shaft (10). A first slider (15) and a second slider (16) are respectively disposed on the adjacent side of the two hexagonal studs (14). A first groove (17) is provided on one side of the first slider (15), and a second groove (18) is provided on one side of the second slider (16). The first groove (17) and the second groove (18) are adapted to each other. A limiting component is provided at the bottom of the door frame body (2).
9. A cold storage swing door hinge according to claim 1, characterized in that: A limiting groove (20) is provided on one side of the connecting block (11), and the limiting groove (20) is adapted to the hexagonal stud (14).
10. A cold storage swing door hinge according to claim 1, characterized in that: The limiting component includes a threaded hole (21) on one side of the door frame body (2), and a screw seat (22) is threaded into the threaded hole (21), one side of which of the hexagonal studs (14) contacts the top of the screw seat (22).