Anti-pinch hinge

Abstract

This utility model discloses an anti-pinch hinge, belonging to the field of hinges. It includes a cabinet fixing seat, a door fixing seat, and a connecting rod assembly. The connecting rod assembly includes multiple connecting rods, which are rotatably installed between the cabinet fixing seat and the door fixing seat. A gap is created between the multiple connecting rods. The anti-pinch hinge also includes a cover plate assembly, which includes multiple cover plates. The multiple cover plates are rotatably connected to each other. At least one cover plate is rotatably connected to the cabinet fixing seat or the door fixing seat, and at least one cover plate is rotatably connected to a connecting rod. The multiple cover plates cover the gaps. By setting the cover plate assembly to cover the gaps between the connecting rods, the anti-pinch hinge of this application covers the gaps between the connecting rods during the movement of the hinge from the closed state to the open state, preventing fingers from entering the gaps, avoiding pinching, and improving the safety of use.

Description

Technical Field

[0001] This utility model relates to hinges, and more particularly to anti-pinch hinges. Background Technology

[0002] The refrigerator door and cabinet are connected by a hinge, allowing the door to rotate and open / close. The hinge includes a cabinet mounting base, a door mounting base, and a connecting rod assembly. The cabinet mounting base is fixed to the refrigerator cabinet, the door mounting base is fixed to the refrigerator door, and the connecting rod assembly is installed between the cabinet mounting base and the door mounting base to enable rotation between them.

[0003] However, during the use of existing hinges, gaps may occur between the multiple links of the linkage assembly. If a user accidentally puts their finger into the gap, their hand may be pinched by the link, creating a safety hazard. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, one of the objectives of this utility model is to provide an anti-pinch hinge that can prevent the gap between the connecting rods from pinching the hand.

[0005] One of the objectives of this utility model is achieved through the following technical solution:

[0006] An anti-pinch hinge includes a cabinet mounting base, a door mounting base, and a linkage assembly. The linkage assembly includes multiple linkages and is rotatably mounted between the cabinet mounting base and the door mounting base. A gap is created between the multiple linkages. The anti-pinch hinge also includes a cover plate assembly, which includes multiple cover plates that are rotatably connected to each other. At least one cover plate is rotatably connected to either the cabinet mounting base or the door mounting base, and at least one cover plate is rotatably connected to one of the linkages. The multiple cover plates cover the gap.

[0007] Furthermore, there are two cover plates, namely a first cover plate and a second cover plate. The first cover plate is rotatably connected to a connecting rod, one end of the second cover plate is rotatably connected to the first cover plate, and the other end of the second cover plate is rotatably connected to the cabinet fixing seat or the door fixing seat.

[0008] Furthermore, the linkage assembly includes a first linkage, a second linkage, a third linkage, and a fourth linkage. The two ends of the first linkage are rotatably connected to the cabinet mounting base and the second linkage, respectively. The two ends of the second linkage are rotatably connected to the first linkage and the door mounting base, respectively. The two ends of the third linkage are rotatably connected to the cabinet mounting base and the fourth linkage, respectively. The two ends of the fourth linkage are rotatably connected to the first linkage and the door mounting base, respectively. The first cover plate is rotatably connected to the first linkage, and the second cover plate is rotatably connected to the door mounting base.

[0009] Furthermore, the first cover plate is located between the first connecting rod and the second cover plate, and the width of the second cover plate is greater than that of the first cover plate.

[0010] Furthermore, the door fixing seat is provided with a first hinge hole, a second hinge hole and a first mounting hole. The first mounting hole is located between the first hinge hole and the second hinge hole. The fourth connecting rod is rotatably connected to the first hinge hole, the second connecting rod is rotatably connected to the second hinge hole, and the second cover plate is rotatably connected to the first mounting hole.

[0011] Furthermore, both the first and second connecting rods are double-plate structures, with the second connecting rod partially located within the first connecting rod, and the gap formed between the third and fourth connecting rods.

[0012] Furthermore, one of the cover plates is provided with a snap-fit ​​part, and the other cover plate is provided with a snap-fit ​​hole. The snap-fit ​​part is located in the snap-fit ​​hole and can rotate relative to the snap-fit ​​hole to rotatably connect the multiple cover plates.

[0013] Furthermore, the cover plate includes a plate body and a plurality of latching portions extending from the plate body, the plurality of latching portions being spaced apart and located on a circumference.

[0014] Furthermore, the cross-section of the buckle portion is √-shaped.

[0015] Furthermore, another cover plate is also provided with a groove, the buckle hole is disposed in the groove, and the top of the buckle portion is located in the groove.

[0016] Compared to existing technologies, the anti-pinch hinge of this utility model also includes a cover plate assembly. The cover plate assembly includes multiple cover plates that are rotatably connected to each other. At least one cover plate is rotatably connected to a cabinet fixing seat or a door fixing seat, and at least one cover plate is rotatably connected to a connecting rod. The multiple cover plates block the gaps. By setting the cover plate assembly to block the gaps between the connecting rods, the anti-pinch hinge of this application covers the gaps between the connecting rods during the movement of the hinge from the closed state to the open state, preventing fingers from being inserted into the gaps, avoiding pinching, and improving the safety of use. Attached Figure Description

[0017] Figure 1 This is a perspective view of the anti-pinch hinge of this utility model in the fully open state;

[0018] Figure 2 for Figure 1 Exploded view of the anti-pinch hinge;

[0019] Figure 3 for Figure 2 A three-dimensional sectional view of the linkage assembly of the anti-pinch hinge;

[0020] Figure 4 for Figure 2 Exploded view of the cover plate assembly of the anti-pinch hinge;

[0021] Figure 5 for Figure 1 A 3D diagram of the closing process of the anti-pinch hinge;

[0022] Figure 6 for Figure 1 A 3D view of the closed state of the anti-pinch hinge.

[0023] In the diagram: 10. Door mounting base; 11. First base plate; 12. First side plate; 120. First hinge hole; 121. Second hinge hole; 122. First mounting hole; 13. First receiving space; 20. Cabinet mounting base; 21. Second base plate; 22. Second side plate; 220. Third hinge hole; 23. Second receiving space; 30. Link assembly; 31. First link; 310. Third base plate; 311. Third side plate ; 3110, Second mounting hole; 32, Second connecting rod; 33, Third connecting rod; 34, Fourth connecting rod; 40, Cover plate assembly; 41, First cover plate; 410, Plate body; 4101, First through hole; 4102, Alternating hole; 411, Snap-fit ​​part; 42, Second cover plate; 420, Snap-fit ​​hole; 4201, Second through hole; 4202, Groove; 421, Connecting hole; 43, First mounting component; 44, Second mounting component. Detailed Implementation

[0024] 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.

[0025] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or it can be fixed through another intermediate component. When a component is said to be "connected to" another component, it can be directly connected to the other component or it may be fixed through another intermediate component. When a component is said to be "set on" another component, it can be set directly on the other component or it may be set through another intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] like Figure 1 As shown, this utility model's anti-pinch hinge is used for opening and closing doors. In this embodiment, the anti-pinch hinge is used for a refrigerator door. The anti-pinch hinge includes a door body fixing seat 10, a cabinet body fixing seat 20, a connecting rod assembly 30, and a cover plate assembly 40. The door body fixing seat 10 is connected to the cabinet body fixing seat 20 via the connecting rod assembly 30, enabling the door body fixing seat 10 to rotate relative to the cabinet body fixing seat 20, thereby opening and closing the door. The cover plate assembly 40 is used to cover the gaps between the multiple connecting rods of the connecting rod assembly 30, preventing fingers from being pinched when inserted into the gaps.

[0028] Please continue reading. Figure 2 The door mounting bracket 10 is used to fix the door to the refrigerator. In this embodiment, the anti-pinch hinge is applied to the refrigerator, and the door mounting bracket 10 is fixed to the refrigerator door. The door mounting bracket 10 has a double-plate structure to enhance its structural strength. The door mounting bracket 10 includes a first base plate 11 and two first side plates 12. The two first side plates 12 are parallel to each other, and the first base plate 11 connects the two first side plates 12 and is perpendicular to the first side plates 12. The two first side plates 12 and the first base plate 11 form a first receiving space 13, which is used to receive the connecting rod assembly 30 when closed to prevent damage to the connecting rod assembly 30. The first side plate 12 is provided with a first hinge hole 120, a second hinge hole 121, and a first mounting hole 122, with the first mounting hole 122 located between the first hinge hole 120 and the second hinge hole 121. The first hinge hole 120 is rotatably connected to the fourth connecting rod 34, the second hinge hole 121 is rotatably connected to the second connecting rod 32, and the first mounting hole 122 is rotatably connected to the second cover plate 42.

[0029] The cabinet mounting base 20 is used to fix the cabinet. In this embodiment, the cabinet mounting base 20 is fixed to the refrigerator cabinet. The cabinet mounting base 20 has a double-plate structure to enhance its structural strength. Specifically, the cabinet mounting base 20 includes a second base plate 21 and two second side plates 22. The two second side plates 22 are parallel to each other, and the second base plate 21 connects to the two second side plates 22 and is perpendicular to the second side plates 22. The second base plate 21 and the two second side plates 22 together form a second receiving space 23. The second receiving space 23 is used to receive the connecting rod assembly 30 when closed to prevent damage to the connecting rod assembly 30. The second side plate 22 is provided with two third hinge holes 220, which are rotatably connected to the first connecting rod 31 and the third connecting rod 33, respectively.

[0030] Please continue reading. Figure 2 as well as Figure 3 The linkage assembly 30 is a multi-link structure used to connect the door fixing seat 10 and the cabinet fixing seat 20, enabling the anti-pinch hinge to open and close at a large angle. Specifically, the linkage assembly 30 includes a first link 31, a second link 32, a third link 33, and a fourth link 34. The first link 31, the second link 32, and the fourth link 34 are all double-plate structures to enhance structural strength, accommodate other components, reduce the size of the anti-pinch hinge, and protect the parts. The first link 31 includes a third base plate 310 and two third side plates 311. The two third side plates 311 are parallel to each other, and the third base plate 310 connects the two third side plates 311 and is perpendicular to the third side plates 311. The third side plate 311 is provided with a second mounting hole 3110, which is rotatably connected to the first cover plate 41. The first cover plate 41 is installed on the outer wall of the third side plate 311, and the first cover plate 41 is only installed on the third side plate 311 located outside the hinge. Since the third side plate 311 on the other side is located inside the refrigerator door during use, there will be no problem of pinching fingers, so no cover plate is needed on the third side plate 311 on the other side. The two ends of the first connecting rod 31 are rotatably connected to the cabinet fixing seat 20 and the second connecting rod 32, respectively. The two ends of the second connecting rod 32 are rotatably connected to the first connecting rod 31 and the door fixing seat 10, respectively. The two ends of the third connecting rod 33 are rotatably connected to the first connecting rod 31 and the fourth connecting rod 34, respectively. The two ends of the fourth connecting rod 34 are rotatably connected to the first connecting rod 31 and the door fixing seat 10, respectively. A gap is formed between the third connecting rod 33 and the fourth connecting rod 34. During the hinge movement, the size of the gap will change due to the change in the position of the third connecting rod 33 and the fourth connecting rod 34. When a finger is inserted into the gap, it will be pinched.

[0031] Please continue reading. Figure 4The cover plate assembly 40 includes multiple cover plates, each with a plate-shaped structure, and the cover plates are rotatably connected to each other. One cover plate is rotatably mounted on the door fixing seat 10 or the cabinet fixing seat 20, and another cover plate is rotatably mounted on the connecting rod of the connecting rod assembly 30. The position of the cover plate assembly 40 corresponds to the gap between the connecting rods to cover the gap. In this embodiment, there are two cover plates, namely a first cover plate 41 and a second cover plate 42. The first cover plate 41 includes a plate body 410 and a snap-fit ​​portion 411 extending from the end of the plate body 410. The plate body 410 is provided with a first through hole 4101 and a clearance hole 4102, which are located at opposite ends of the plate body 410. A first mounting member 43 is installed in the first through hole 4101 and the second mounting hole 3110, so that the first cover plate 41 is rotatably mounted on the first connecting rod 31. Multiple latching parts 411 are provided, arranged around the clearance hole 4102 at intervals. Each latching part 411 has a √-shaped cross-section. By providing latching parts 411 facing the second cover plate 42, the first cover plate 41 and the second cover plate 42 are rotatably connected, reducing the overall thickness of the first cover plate 41 and the second cover plate 42. This eliminates the need for connecting parts such as pins or screws, avoiding the increase in overall thickness caused by connecting parts. The second cover plate 42 is provided with a latching hole 420 and a connecting hole 421. The latching hole 420 includes a groove 4202 and a second through hole 4201 disposed in the groove 4202. The second through hole 4201 is disposed in the groove 4202, so that when the latching part 411 is installed in the latching hole 420, the top of the latching part 411 is located in the groove 4202, preventing the latching part 411 from protruding from the groove 4202 and causing wear. The second mounting component 44 is installed in the connecting hole 421 and the first mounting hole 122, so that the second cover plate 42 is rotatably installed in the door body fixing seat 10.

[0032] Please continue reading. Figure 1 as well as Figure 3 When assembling the anti-pinch hinge, the two ends of the first connecting rod 31 are rotatably connected to the cabinet fixing seat 20 and the second connecting rod 32, respectively. The two ends of the second connecting rod 32 are rotatably connected to the first connecting rod 31 and the door fixing seat 10, respectively. The two ends of the third connecting rod 33 are rotatably connected to the cabinet fixing seat 20 and the fourth connecting rod 34, respectively. The two ends of the fourth connecting rod 34 are rotatably connected to the first connecting rod 31 and the door fixing seat 10, respectively. At this time, a gap is generated between the first connecting rod 31, the second connecting rod 32, the fourth connecting rod 34, and the door fixing seat 10. One end of the first cover plate 41 is rotatably connected to the first connecting rod 31, and the other end is rotatably connected to the second cover plate 42 through the buckle part 411. The other end of the second cover plate 42 is rotatably connected to the door fixing seat 10. At this time, the first cover plate 41 and the second cover plate 42 cover the gap between the connecting rods.

[0033] Please continue reading. Figures 5 to 6When the anti-pinch hinge is in use, as it moves from the fully open state to the closed state, the size and position of the gap between the first link 31, the second link 32, the fourth link 34, and the door fixing seat 10 also change. The positions of the first cover plate 41 and the second cover plate 42 also change so as to always cover the gap, prevent fingers from being inserted into the gap and causing pinching, and improve the safety of use.

[0034] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model. These are all equivalent modifications and improvements made to the above embodiments based on the essential technology of this utility model, and all of these fall within the protection scope of this utility model.

Claims

1. An anti-pinch hinge, comprising a cabinet mounting base, a door mounting base, and a linkage assembly, wherein the linkage assembly comprises multiple linkages, the linkage assembly is rotatably mounted between the cabinet mounting base and the door mounting base, and a gap is generated between the multiple linkages, characterized in that: The anti-pinch hinge also includes a cover plate assembly, which includes multiple cover plates that are rotatably connected to each other. At least one cover plate is rotatably connected to the cabinet mounting base or the door mounting base, and at least one cover plate is rotatably connected to a connecting rod. The multiple cover plates cover the gap.

2. The anti-pinch hinge according to claim 1, characterized in that: The number of cover plates is two, namely a first cover plate and a second cover plate. The first cover plate is rotatably connected to a connecting rod, one end of the second cover plate is rotatably connected to the first cover plate, and the other end of the second cover plate is rotatably connected to the cabinet fixing seat or the door fixing seat.

3. The anti-pinch hinge according to claim 2, characterized in that: The linkage assembly includes a first linkage, a second linkage, a third linkage, and a fourth linkage. The two ends of the first linkage are rotatably connected to the cabinet mounting base and the second linkage, respectively. The two ends of the second linkage are rotatably connected to the first linkage and the door mounting base, respectively. The two ends of the third linkage are rotatably connected to the cabinet mounting base and the fourth linkage, respectively. The two ends of the fourth linkage are rotatably connected to the first linkage and the door mounting base, respectively. The first cover plate is rotatably connected to the first linkage, and the second cover plate is rotatably connected to the door mounting base.

4. The anti-pinch hinge according to claim 3, characterized in that: The first cover plate is located between the first connecting rod and the second cover plate, and the width of the second cover plate is greater than that of the first cover plate.

5. The anti-pinch hinge according to claim 3, characterized in that: The door fixing seat is provided with a first hinge hole, a second hinge hole and a first mounting hole. The first mounting hole is located between the first hinge hole and the second hinge hole. The fourth connecting rod is rotatably connected to the first hinge hole, the second connecting rod is rotatably connected to the second hinge hole, and the second cover plate is rotatably connected to the first mounting hole.

6. The anti-pinch hinge according to claim 3, characterized in that: Both the first and second connecting rods are double-plate structures, with the second connecting rod partially located within the first connecting rod, and the gap formed between the third and fourth connecting rods.

7. The anti-pinch hinge according to claim 1, characterized in that: One of the cover plates is provided with a snap-fit ​​part, and the other cover plate is provided with a snap-fit ​​hole. The snap-fit ​​part is located in the snap-fit ​​hole and can rotate relative to the snap-fit ​​hole to rotatably connect the multiple cover plates.

8. The anti-pinch hinge according to claim 7, characterized in that: The cover plate includes a plate body and a plurality of latching portions extending from the plate body, the plurality of latching portions being spaced apart and located on a circumference.

9. The anti-pinch hinge according to claim 8, characterized in that: The cross-section of the buckle part is √-shaped.

10. The anti-pinch hinge according to claim 8, characterized in that: The other cover plate is also provided with a groove, the buckle hole is provided in the groove, and the top of the buckle portion is located in the groove.

Images