A cabinet door and a plug pin thereof
By designing an integrated molding pin and utilizing ribs and guide bevels, the problem of low assembly efficiency of the freezer door frame was solved, achieving a stable connection and aesthetics, while reducing assembly difficulty and cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU HUAFA IND
- Filing Date
- 2025-09-14
- Publication Date
- 2026-07-24
AI Technical Summary
The existing refrigerator door frame assembly is inefficient, and the end joints of the frame are difficult to connect, requiring adhesive bonding, which is also inefficient.
The plug is made of one piece and has raised ribs and guide bevels. The raised ribs deform and tighten after being inserted into the frame, eliminating or reducing the use of adhesive. The design of raised ribs and guide bevels achieves a stable connection.
It improves the assembly efficiency of cabinet door frames, ensures a firm and aesthetically pleasing connection, reduces the use of adhesive, and lowers assembly difficulty and cost.
Smart Images

Figure CN224551899U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of cabinet door technology, and relates to a cabinet door and its latch. Background Technology
[0002] Existing freezer doors consist of a frame and a double-glazed unit. The frame includes four frame edges and connecting feet. The ends of the frame edges are at a 45-degree angle, and adjacent frame edges are joined together to form a right angle. Adjacent frame edges are further bonded together with adhesive at the joints. The assembly of the frame is relatively complicated and inefficient. Summary of the Invention
[0003] This utility model addresses the problems existing in the prior art by proposing a cabinet door and its insert, aiming to overcome the defect of low assembly efficiency of the existing cabinet door frame.
[0004] This utility model is implemented as follows: A plug includes an integrally formed first plug portion and a second plug portion, characterized in that the first plug portion and the second plug portion have raised ribs, the length directions of the raised ribs on the first plug portion and the second plug portion are respectively inclined or perpendicular to the insertion direction of the first plug portion and the second plug portion, and the raised ribs have guide slopes facing the insertion direction.
[0005] The face of the rib facing away from the insertion direction is perpendicular to the plane in which the rib is located.
[0006] The pin includes opposing first and second sides, as well as opposing third and fourth sides, and the pin has a cavity with an opening facing the third side, the cavity containing a connecting rib.
[0007] The connecting rib is recessed within the third side surface.
[0008] The first side and / or the fourth side have the rib.
[0009] The first side of the first plug and the first side of the second plug have an arc-shaped protrusion at their adjacent points, and the connection between the two arc-shaped protrusions forms a concave groove.
[0010] The free ends of the first and second plug-in portions have guide portions, and the guide portions have first inclined surfaces.
[0011] The first insertion portion and the second insertion portion have a transition section between the protruding rib and the guide portion closest to the free end. The transition section has a guide rib, and the guide rib has a second inclined surface. The inclination angle of the first inclined surface is greater than the inclination angle of the second inclined surface.
[0012] The length of the second inclined plane is greater than the thickness of the rib and the spacing between adjacent ribs.
[0013] The angle between the third side of the first plug-in portion and the third side of the second plug-in portion is less than 180 degrees, and the angle between the fourth side of the first plug-in portion and the fourth side of the second plug-in portion is greater than 180 degrees.
[0014] Both the first plug-in portion and the second plug-in portion have rotatable connection holes on their second side surfaces, and the structures of the first plug-in portion and the second plug-in portion are symmetrically arranged.
[0015] A cabinet door, characterized in that it includes the aforementioned insert, a frame, and a hollow glass assembly, wherein the frame includes four side frames connected by the insert to form the frame, the protruding ribs abut against the inner wall of the side frames, and the third side of the insert faces the front or back of the cabinet door.
[0016] The present invention has the following advantages: the prongs can be tightly pressed against the frame by the deformation of the ribs, the prongs are not easy to detach from the frame, the prongs can be firmly connected to the frame, and the frame connection can be made without further adhesive, which facilitates the improvement of the assembly efficiency of the frame. Attached Figure Description
[0017] Figure 1 This is a structural diagram of the cabinet door; Figure 2 This is a schematic diagram of the exploded structure of the frame at the first angle. Figure 3 This is a schematic diagram of the second angle explosion structure of the frame; Figure 4 This is a sectional view of the cabinet door. Figure 5 This is a schematic diagram of the first angle structure of the pin; Figure 6 This is a schematic diagram of the second angle structure of the pin; Figure 7 This is a schematic diagram of the third angle structure of the pin; Figure 8 This is a schematic diagram of the fourth angle structure of the pin.
[0018] Figure labeling: 100, frame; 200, insulated glass assembly; 300, pin; 310, first insertion part; 320, second insertion part; 330, rib; 331, guide slope; 340, first side; 341, arc-shaped convex post; 350, second side; 351, rotating connection hole; 360, third side; 361, cavity; 362, connecting rib; 370, fourth side; 380, guide part; 381, first slope; 390, transition section; 391, second slope. Detailed Implementation
[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so as to make the technical solution of this utility model easier to understand and master. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0020] This embodiment provides a cabinet door, such as Figure 1-8 As shown, it includes pins 300, a frame and a hollow glass assembly 200. The frame includes four side frames 100, which are connected to form the frame by the pins 300.
[0021] like Figure 5-8 As shown, the plug 300 includes an integrally formed first insertion portion 310 and a second insertion portion 320, and the entire plug 300 is integrally formed. The first insertion portion 310 and the second insertion portion 320 have raised ribs 330. The length directions of the raised ribs 330 on the first insertion portion 310 and the second insertion portion 320 are respectively perpendicular to the insertion direction of the first insertion portion 310 and the second insertion portion 320. The raised ribs 330 have guide slopes 331 facing the insertion direction and abut against the inner wall of the frame 100. During the insertion of the plug 300 into the frame 100, the raised ribs 330 are subjected to a force opposite to the insertion direction, causing the raised ribs 330 to deform. The distance from the end of the raised rib 330 to the side of the corresponding insertion portion decreases to accommodate the size of the socket in the frame 100, allowing the plug 300 to be inserted into the frame 100. During the process of removing the pin 300 from the frame 100, the rib 330 tends to deform in the other direction and then tends to return to its original shape. That is, the distance from the end of the rib 330 to the side of the corresponding insertion part tends to increase. This increases the frictional resistance between the rib 330 and the frame 100, which helps the pin 300 to be stably fixed to the frame 100. Even without further bonding with adhesive, and by eliminating or reducing the number of frame screws, a firm connection can be achieved. The pin can better ensure that there is no misalignment at the connection between adjacent frames. In specific applications, even if adhesive is used to further strengthen the connection, it is still included within the protection scope of this utility model. In other optional embodiments, the length direction of the rib 330 on the first insertion part 310 and the rib 330 on the second insertion part 320 can also be inclined relative to the insertion direction of the first insertion part 310 and the second insertion part 320, respectively.
[0022] like Figure 4 , 8As shown, the surface of the protruding rib 330 facing away from the insertion direction is perpendicular to the plane in which the protruding rib 330 is located. This can prevent the protruding rib 330 from being too tilted after the pin 300 is inserted into the frame 100, which would weaken the tendency of the protruding rib 330 to return to its original state during the process of pulling out the pin 300, and help improve the firmness of the fixation between the pin 300 and the frame 100.
[0023] like Figure 2-7 As shown, the pin 300 includes opposing first side 340 and second side 350, as well as opposing third side 360 and fourth side 370. The pin 300 has a cavity 361 with an opening facing the third side 360, and a connecting rib 362 is provided in the cavity 361. The cavity 361 helps to reduce the material used in the pin 300, and the connecting rib 362 helps to strengthen the structure of the pin 300 with the cavity 361. The opening in the cavity 361 can reduce the contact area between the third side 360 and the frame 100, and reduce the difficulty of inserting the pin 300.
[0024] like Figure 6 As shown, the connecting rib 362 is recessed within the third side surface 360. This prevents the connector from obstructing the insertion of the pin 300 into the frame 100. In other alternative embodiments, the connecting rib 362 may also be flush with the third side surface 360.
[0025] like Figure 5-7 As shown, the first side 340 and the fourth side 370 both have the rib 330. In other optional embodiments, the rib 330 may be provided only on the first side 340 and the fourth side 370, or the rib 330 may be provided on the second side 350 and the third side 360.
[0026] Since the third side 360 of the pin 300 faces the front of the cabinet door, and the front and outward-facing sides of the cabinet door are common areas after installation, keeping these common areas flat is beneficial to the aesthetics of the cabinet door. The contact between the protruding rib 330 and the frame 100 may cause deformation of the contacted surface. Therefore, protruding ribs 330 are provided on the first side 340 and the fourth side 370 to help keep the common surfaces of the cabinet door flat. In other optional embodiments, the third side 360 of the pin 300 faces the front of the cabinet door, and the fourth side of the pin can be further fixed to the back of the frame with screws. In other optional embodiments, the third side 360 may also face the back of the cabinet door.
[0027] like Figure 5 , 6As shown, the first side surface 340 of the first insertion part 310 and the first side surface 340 of the second insertion part 320 have an arc-shaped protrusion 341 at their adjacent points, and a concave groove is formed at the connection point of the two arc-shaped protrusions 341. The arc-shaped protrusions 341 can guide the ends of adjacent frame 100 to abut together, reducing the possibility of gaps between adjacent frame 100 and improving the tightness of the connection of the frame 100.
[0028] like Figure 4-7 As shown, the free ends of the first insertion portion 310 and the second insertion portion 320 have guide portions 380, and the guide portions 380 have a first inclined surface 381. This facilitates the quick insertion of the pin 300 into the frame 100.
[0029] like Figure 4 , 5 As shown, the first insertion portion 310 and the second insertion portion 320 have a transition section 390 between the protruding rib 330 and the guide portion 380 closest to the free end. The transition section 390 has a guide rib, and the guide rib has a second inclined surface 391. The inclination angle of the first inclined surface 381 is greater than that of the second inclined surface 391. In this embodiment, the guide rib is located on the fourth side surface 370, and the corresponding inclination angle of the first inclined surface 381 relative to the fourth side surface 370 is greater than that of the second inclined surface 391 relative to the fourth side surface 370. The relatively gentle second inclined surface 391 helps to guide the edge of the frame 100 to the protruding rib 330 closest to the free end, avoiding excessive resistance when inserting the pin 300. The length of the second inclined surface 391 is greater than the thickness of the protruding rib 330 and the spacing between adjacent protruding ribs 330, which facilitates the design of a gentle second inclined surface 391.
[0030] like Figure 8 As shown, the angle between the third side surface 360 of the first plug-in portion 310 and the third side surface 360 of the second plug-in portion 320 is less than 180 degrees, and the angle between the fourth side surface 370 of the first plug-in portion 310 and the fourth side surface 370 of the second plug-in portion 320 is greater than 180 degrees. That is... Figure 8 Angle A is less than 180 degrees, for example, 179 degrees, and angle B is greater than 180 degrees, for example, 181 degrees. This helps to avoid assembly gaps on the front of adjacent frame parts 100. Due to the existence of processing and assembly errors, this embodiment increases the assembly gap on the back of adjacent frame parts 100 and reduces the assembly gap on the front, thus ensuring the aesthetics of the common surfaces of the frame. In other optional embodiments, the angle between the third side 360 of the first insertion part 310 and the third side 360 of the second insertion part 320 can be equal to 180 degrees, that is, they are on the same plane. The angle between the fourth side 370 of the first insertion part 310 and the fourth side 370 of the second insertion part 320 can also be equal to 180 degrees.
[0031] like Figure 1-3 As shown in Figure 7, both the first plug-in portion 310 and the second plug-in portion 320 have rotatable connection holes 351 on their second side surfaces 350. The structures of the first plug-in portion 310 and the second plug-in portion 320 are symmetrically arranged. The rotatable connection holes 351 are used to cooperate with the rotating shaft on the cabinet body, so that the cabinet door can be rotatably connected to the cabinet body. The symmetrical structure of the first plug-in portion 310 and the second plug-in portion 320 can improve the compatibility of the plug pins 300, which is beneficial to reducing the cost of accessories and improving assembly efficiency.
[0032] The above description is merely a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the utility model will be included within the scope of the claims.
Claims
1. A connector, comprising an integrally formed first connector portion (310) and a second connector portion (320), characterized in that, The first insertion part (310) and the second insertion part (320) have raised ribs (330). The length direction of the raised ribs (330) on the first insertion part (310) and the second insertion part (320) is respectively inclined or perpendicular to the insertion direction of the first insertion part (310) and the second insertion part (320). The raised ribs (330) have guide slopes (331) facing the insertion direction.
2. A pin according to claim 1, characterized in that, The face of the rib (330) facing away from the insertion direction is perpendicular to the plane in which the rib (330) is located.
3. A pin according to claim 1, characterized in that, The pin (300) includes opposing first side (340) and second side (350), as well as opposing third side (360) and fourth side (370), the pin (300) having a cavity (361) opening toward the third side (360), the cavity (361) having a connecting rib (362).
4. A pin according to claim 3, characterized in that, The connecting rib (362) is recessed into the third side surface (360). The first side (340) and / or the fourth side (370) have the rib (330).
5. A pin according to claim 1, characterized in that, The first side (340) of the first plug-in portion (310) and the first side (340) of the second plug-in portion (320) are adjacent to each other, and an arc-shaped protrusion (341) is formed at the junction of the two arc-shaped protrusions (341).
6. A pin according to claim 1, characterized in that, The free ends of the first plug-in portion (310) and the second plug-in portion (320) have guide portions (380), and the guide portions (380) have a first inclined surface (381).
7. A pin according to claim 6, characterized in that, The first plug-in portion (310) and the second plug-in portion (320) have a transition section (390) between the protruding rib (330) and the guide portion (380) closest to the free end. The transition section (390) has a guide rib, and the guide rib has a second inclined surface (391). The inclination angle of the first inclined surface (381) is greater than the inclination angle of the second inclined surface (391). The length of the second inclined plane (391) is greater than the thickness of the rib (330) and the spacing between adjacent ribs (330).
8. A pin according to claim 1, characterized in that, The angle between the third side (360) of the first plug-in portion (310) and the third side (360) of the second plug-in portion (320) is less than 180 degrees, and the angle between the fourth side (370) of the first plug-in portion (310) and the fourth side (370) of the second plug-in portion (320) is greater than 180 degrees.
9. A pin according to claim 1, characterized in that, Both the first plug-in portion (310) and the second plug-in portion (320) have a rotating connection hole (351) on their second side surface (350), and the structures of the first plug-in portion (310) and the second plug-in portion (320) are arranged symmetrically.
10. A cabinet door, characterized in that, The cabinet includes the pin (300) as described in any one of claims 1-9, and also includes a frame and a hollow glass assembly (200). The frame includes four side frames (100), which are connected to form the frame by the pin (300). The rib (330) abuts against the inner wall of the side frame (100), and the third side (360) of the pin (300) faces the front or back of the cabinet door.