A connecting piece for sheet metal parts
The innovative design of hinges and latches solves the problems of exposed parts and gaps when connecting cabinet doors to the cabinet body, achieving complete closure and improved aesthetics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG TAIER PLASTIC IND CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-06-09
AI Technical Summary
In existing technologies, the connecting parts between the cabinet door and the cabinet body have exposed parts, which affects the aesthetics, and the large gaps lead to noise pollution and gas leakage.
The innovative design of hinges and latches is adopted. The hinges are connected by the first and second axle pieces between the first and second seats, and the latches are locked by the cooperation of the latch and the snap fastener, ensuring that the cabinet door is fully closed and aesthetically pleasing.
It achieves seamless closure between the cabinet door and the cabinet body, smooth and frictionless opening and closing, supports large-angle opening and closing, and has no exposed parts on the outside, thus improving the aesthetics and functionality of the equipment.
Smart Images

Figure CN224338790U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of door and cabinet connection technology, specifically relating to a connector for sheet metal doors. Background Technology
[0002] Hinges and latches are generally used to connect cabinet doors to the cabinet body.
[0003] In existing technologies, ordinary hinges leave the hinge shaft exposed after installation, affecting the overall aesthetics. Moreover, when the cabinet door is closed, the gap between the door and the cabinet body is relatively large. For equipment with high sealing requirements, such as air purifiers, large gaps not only allow unfiltered external air to enter the cabinet, but also generate whistling noise, causing noise pollution.
[0004] Existing locking mechanisms also have exposed parts after installation, resulting in poor overall aesthetics. Utility Model Content
[0005] The purpose of this utility model is to provide a connector for sheet metal doors to solve the problems mentioned in the background art. The connector for sheet metal doors provided by this utility model allows the cabinet door to be fully closed after being shut, and also enhances the overall aesthetics of the equipment.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a connector for sheet metal doors, comprising a hinge for hinged connection of one side of the cabinet door to the cabinet body and a latch for locking the other side of the cabinet door to the cabinet body, wherein the hinge comprises a first seat and a second seat, and a first shaft piece and a second shaft piece are provided between the first seat and the second seat, and the first shaft piece and the second shaft piece are rotatably connected to the first seat and the second seat respectively.
[0007] In order to achieve the hinge connection between the first and second shaft pieces and the first and second base bodies, the first and second base bodies are further provided with through holes, and the first and second shaft pieces are connected to the first and second base bodies respectively by pins.
[0008] Furthermore, the first shaft piece is located on the side away from the cabinet door, and the middle position of the first shaft piece has an outward bending part.
[0009] To achieve the locking of the cabinet door and the cabinet body, the latch further includes a bottom cover, a housing connected to the bottom cover, a buckle rotating inside the housing, a through groove corresponding to the buckle on the surface of the housing, a plug connected to the buckle, and a latch also includes a bolt, which has a lock groove corresponding to the plug.
[0010] To facilitate the operation of the snap fastener, a hemispherical groove is further provided on the housing below the through groove.
[0011] In order to limit the buckle after it is engaged and prevent it from opening naturally, protrusions are provided on both sides of the lower part of the through groove.
[0012] To facilitate connection with the cabinet, two connecting blocks are further provided on the side of the housing.
[0013] To further limit the pressing stroke of the buckle, a corresponding limiting block is provided on the bottom cover.
[0014] To enable quick connection between the bottom cover and the housing, the bottom cover is further provided with two buckles, and the housing is provided with buckle grooves corresponding to the buckles.
[0015] To further limit the bottom cover, limiting seats are provided on the upper and lower inner walls of the housing.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. The hinge of this utility model includes a first seat and a second seat, which are connected by a first shaft piece and a second shaft piece respectively. The hinge with this structure connects the cabinet door and the cabinet body, which can ensure complete closure when the cabinet door is closed, with no gap between the cabinet door and the cabinet body. The door opens and closes smoothly without friction, supports large-angle opening and closing, and is convenient for taking out and putting in.
[0018] 2. After installation, the hinge of this utility model is completely located inside the cabinet door and cabinet body, with no exposed parts on the outside, thus ensuring the overall aesthetics.
[0019] 3. This utility model achieves locking by cooperating with the locking tongue and the insert on the buckle. Simply prying the buckle is enough to unlock or lock the device. The operation is simple and convenient. Furthermore, the housing is embedded inside the cabinet with no exposed parts, ensuring the overall aesthetics.
[0020] 4. The two sides of the lower part of the through groove of this utility model are provided with protrusions. When the buckle is fastened, the protrusions limit the buckle and prevent the buckle from opening in the natural state. Attached Figure Description
[0021] Figure 1 This is a structural diagram of the connection between the cabinet body and the cabinet door of this utility model.
[0022] Figure 2 This is a schematic diagram of the hinge structure of this utility model.
[0023] Figure 3 This is an exploded view of the structure of the hinge of this utility model.
[0024] Figure 4 This is a schematic diagram of the structure of the latch of this utility model.
[0025] Figure 5 This is an exploded view of the structure of the latch of this utility model.
[0026] Figure 6 This is a schematic diagram of the structure of the shell of this utility model.
[0027] In the diagram: 1. Cabinet body; 2. Cabinet door; 3. Hinge; 31. First base; 32. Second base; 33. First shaft piece; 331. Bending part; 34. Pin; 35. Through hole; 36. Second shaft piece; 4. Lock; 41. Press-fit; 411. Insert block; 42. Housing; 421. Protrusion; 422. Hemispherical groove; 423. Connecting block; 424. Snap groove; 425. Limiting seat; 43. Lock tongue; 431. Lock groove; 44. Bottom cover; 441. Limiting block; 442. Snap fastener. Detailed Implementation
[0028] 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.
[0029] Example 1
[0030] Please see Figures 1-6 The present invention provides the following technical solution: a connector for sheet metal doors, comprising a hinge 3 for hinged connection of one side of cabinet door 2 to cabinet body 1 and a latch 4 for locking the other side of cabinet door 2 to cabinet body 1, wherein the hinge 3 comprises a first seat 31 and a second seat 32, the first seat 31 is mounted on cabinet door 2 and the second seat 32 is mounted on cabinet body 1, a first shaft piece 33 and a second shaft piece 36 are provided between the first seat piece 31 and the second seat piece 32, the first shaft piece 33 and the second shaft piece 36 are rotatably connected to the first seat piece 31 and the second seat piece 32 respectively, and an avoidance groove corresponding to the second shaft piece 36 is provided on the connection side between cabinet body 1 and hinge 3.
[0031] By adopting the above technical solution, the hinge 3 of this utility model includes a first base 31 and a second base 32. The first base 31 and the second base 32 are connected by a first shaft piece 33 and a second shaft piece 36, respectively. The hinge 3 with this structure connects the cabinet door 2 and the cabinet body 1, ensuring complete closure when the cabinet door 2 is closed. There is no gap between the cabinet door 2 and the cabinet body 1, and the opening and closing of the door is smooth and frictionless, supporting large-angle opening and closing, and facilitating retrieval and placement operations. After installation, the hinge 3 of this utility model is completely located inside the cabinet door 2 and the cabinet body 1, with no exposed parts on the outside, ensuring the overall aesthetics.
[0032] Specifically, the first seat 31 and the second seat 32 are respectively provided with through holes 35, and the first shaft plate 33 and the second shaft plate 36 are respectively connected to the first seat 31 and the second seat 32 through pins 34.
[0033] By adopting the above technical solution, the first shaft piece 33 and the second shaft piece 36 are hinged to the first seat 31 and the second seat 32.
[0034] Specifically, the first shaft piece 33 is located on the side away from the cabinet door 2, and the middle position of the first shaft piece 33 is provided with an outward bending part 331.
[0035] By adopting the above technical solution, the connecting shaft end of the second shaft piece 36 is avoided when the door is opened, thus preventing interference.
[0036] Example 2
[0037] The difference between this embodiment and embodiment 1 is that: specifically, the latch 4 includes a bottom cover 44, a housing 42 connected to the bottom cover 44, the housing 42 is installed inside the cabinet 1, a snap fastener 41 is rotatably mounted inside the housing 42, a through groove corresponding to the snap fastener 41 is provided on the surface of the housing 42, an insert block 411 is connected to the snap fastener 41, the latch 4 also includes a latch tongue 43, the latch tongue 43 is installed on the cabinet door 2, the latch tongue 43 is provided with a lock groove 431 corresponding to the insert block 411, and the housing 42 and the bottom cover 44 are both injection molded.
[0038] By adopting the above technical solution, this utility model achieves locking by cooperating the locking tongue 43 with the insert block 411 on the buckle 41. The lock can be opened or closed simply by moving the buckle 41. The operation is simple and convenient. Moreover, the housing 42 is embedded inside the cabinet 1 with no exposed parts, ensuring the overall aesthetics.
[0039] Specifically, a hemispherical groove 422 is provided on the housing 42 below the through groove.
[0040] By adopting the above technical solution, it is convenient to operate the snap fastener 41.
[0041] Specifically, two connecting blocks 423 are provided on the side of the housing 42.
[0042] The above technical solution is used for connection with cabinet 1.
[0043] Specifically, the bottom cover 44 is provided with a limiting block 441 corresponding to the buckle 41.
[0044] By adopting the above technical solution, the pressing stroke of the snap fastener 41 is limited.
[0045] Specifically, the bottom cover 44 is provided with two buckles 442, and the housing 42 is provided with buckle grooves 424 corresponding to the buckles 442.
[0046] By adopting the above technical solution, a quick connection between the bottom cover 44 and the housing 42 can be achieved.
[0047] Specifically, the upper and lower inner walls of the housing 42 are respectively provided with limiting seats 425.
[0048] By adopting the above technical solution, the bottom cover 44 is limited.
[0049] Example 3
[0050] The difference between this embodiment and embodiment 2 is that, specifically, protrusions 421 are provided on both sides of the lower side of the through groove.
[0051] By adopting the above technical solution, when the buckle 41 is fastened, the protrusion 421 limits the buckle 41 to prevent it from opening in its natural state.
[0052] In summary, the hinge 3 of this utility model includes a first base 31 and a second base 32, which are connected by a first shaft piece 33 and a second shaft piece 36, respectively. This hinge 3 connects the cabinet door 2 and the cabinet body 1, ensuring complete closure when the cabinet door 2 is closed, with no gap between the cabinet door 2 and the cabinet body 1. It also allows for smooth, frictionless opening and closing, supports large-angle opening and closing, and facilitates easy access. After installation, the hinge 3 is completely located inside the cabinet door 2 and the cabinet body 1, with no exposed parts, ensuring overall aesthetics. This utility model achieves locking through the cooperation of the latch 43 and the insert 411 on the snap fastener 41. Simply moving the snap fastener 41 unlocks or locks the door, making operation simple and convenient. Furthermore, the housing 42 is embedded inside the cabinet body 1, with no exposed parts, ensuring overall aesthetics. The present invention has protrusions 421 on both sides of the lower part of the through groove. When the buckle 41 is fastened, the protrusions 421 limit the buckle 41 to prevent the buckle 41 from opening in the natural state.
[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A connector for sheet metal doors, characterized in that: It includes a hinge that hinges one side of the cabinet door to the cabinet body and a latch that locks the other side of the cabinet door to the cabinet body. The hinge includes a first base and a second base. A first shaft piece and a second shaft piece are provided between the first base and the second base. The first shaft piece and the second shaft piece are rotatably connected to the first base and the second base, respectively.
2. A connector for sheet metal doors according to claim 1, characterized in that: The first and second seats are respectively provided with through holes, and the first and second shaft pieces are respectively connected to the first and second seats by pins.
3. A connector for sheet metal doors according to claim 1, characterized in that: The first shaft piece is located on the side away from the cabinet door, and the middle position of the first shaft piece has an outward bending part.
4. A connector for sheet metal doors according to claim 1, characterized in that: The latch includes a bottom cover, a housing connected to the bottom cover, a buckle rotating inside the housing, a through groove corresponding to the buckle on the surface of the housing, an insert block connected to the buckle, and a latch also includes a latch tongue with a locking groove corresponding to the insert block.
5. A connector for sheet metal doors according to claim 4, characterized in that: The housing has a hemispherical groove located below the through groove.
6. A connector for sheet metal doors according to claim 4, characterized in that: The through groove has protrusions on both sides of its lower edge.
7. A connector for sheet metal doors according to claim 4, characterized in that: Two connecting blocks are provided on the side of the housing.
8. A connector for sheet metal doors according to claim 4, characterized in that: The bottom cover is provided with a corresponding buckle limiting block.
9. A connector for sheet metal doors according to claim 4, characterized in that: The bottom cover has two buckles, and the housing has buckle grooves corresponding to the buckles.
10. A connector for sheet metal doors according to claim 4, characterized in that: Limiting seats are respectively provided on the upper and lower inner walls of the shell.