Anti-pinch hinge
By introducing an elastic element into the refrigerator hinge to cover the gap between the cabinet and the door, the problem of fingers getting pinched during use of the hinge is solved, achieving higher safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI HAIDAER PRECISION SLIDES CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-14
AI Technical Summary
In the current refrigerator hinges, gaps can easily form between the cabinet mounting bracket and the door mounting bracket during use, which can cause fingers to get caught if they are accidentally inserted, posing a safety hazard.
An anti-pinch hinge was designed by introducing an elastic element into the hinge. One end of the elastic element is fixed to the cabinet or door mounting base, and the other end abuts against the corresponding mounting base to block the gap and prevent fingers from sticking in.
It effectively covers the gaps in the hinge during opening and closing, preventing fingers from getting caught and improving safety.
Smart Images
Figure CN224496137U_ABST
Abstract
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, in the use of existing hinges, gaps will be generated between the cabinet mounting base and the door mounting base. If fingers are accidentally inserted into the gaps, they may be pinched by the cabinet mounting base and the door mounting base, 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 hand from being pinched by the gap between the cabinet fixing seat and the door fixing seat.
[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 is rotatably mounted between the cabinet mounting base and the door mounting base. The door mounting base rotates relative to the cabinet mounting base via the linkage assembly, creating a gap between the cabinet mounting base and the door mounting base. The anti-pinch hinge also includes an elastic element. One end of the elastic element is fixed to the cabinet mounting base or the door mounting base, and the other end of the elastic element abuts against the door mounting base or the cabinet mounting base to block the gap.
[0007] Furthermore, the elastic element includes a fixing part, a bending part, and an abutting part. The fixing part, the bending part, and the abutting part are fixedly connected. The bending part is located between the fixing part and the abutting part. The fixing part is fixed to the cabinet fixing seat or the door fixing seat, and the abutting part abuts against the door fixing seat or the cabinet fixing seat.
[0008] Furthermore, the fixing part, the bending part, and the abutting part are integrally formed.
[0009] Furthermore, both the fixing part and the abutting part are linear.
[0010] Furthermore, when the anti-pinch hinge is in the fully open state, the included angle between the fixing part and the contact part is an obtuse angle.
[0011] Furthermore, when the anti-pinch hinge is in the closed state, the included angle between the fixing part and the contact part is a right angle.
[0012] Furthermore, the contact portion is provided with a through groove, which extends along the length direction of the contact portion.
[0013] Furthermore, the cabinet fixing base includes a second base plate, a second side plate, and an end plate. The second side plate and the end plate are fixed to the second base plate. The second side plate is rotatably connected to the connecting rod assembly. The end plate abuts against the contact part. During the opening of the anti-pinch hinge, the end plate slides along the contact part.
[0014] Furthermore, when the anti-pinch hinge is in the closed state, the contact area between the end plate and the abutment is at its maximum; when the anti-pinch hinge is in the fully open state, the contact area between the end plate and the abutment is at its minimum.
[0015] 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 door fixing seat and the second linkage, respectively. The two ends of the second linkage are rotatably connected to the first linkage and the cabinet fixing seat, respectively. The two ends of the third linkage are rotatably connected to the door fixing seat and the second linkage, respectively. The two ends of the fourth linkage are rotatably connected to the third linkage and the cabinet fixing seat, respectively.
[0016] Compared with the prior art, the anti-pinch hinge of this utility model also includes an elastic element. One end of the elastic element is fixed to the cabinet fixing seat or the door fixing seat, and the other end of the elastic element abuts against the door fixing seat or the cabinet fixing seat to block the gap. By setting the elastic element to block the gap, the gap is covered during the movement of the hinge from the closed state to the open state, so that fingers cannot be inserted into the gap, thus 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 1 An exploded view of the anti-pinch hinge from another perspective;
[0020] Figure 4 for Figure 1 Another perspective 3D view of the anti-pinch hinge;
[0021] Figure 5 for Figure 1 A three-dimensional sectional view of an anti-pinch hinge;
[0022] Figure 6 for Figure 1 A 3D diagram of the closing process of an anti-pinch hinge;
[0023] Figure 7 for Figure 1 A 3D view of the closed state of the anti-pinch hinge.
[0024] In the diagram: 10. Door fixing seat; 11. First base plate; 110. Mounting hole; 12. First side plate; 13. First receiving space; 20. Cabinet fixing seat; 21. Second base plate; 22. Second side plate; 23. End plate; 24. Second receiving space; 30. Link assembly; 31. First link; 32. Second link; 33. Third link; 34. Fourth link; 40. Elastic element; 41. Fixing part; 410. Fixing hole; 42. Bending part; 43. Abutting part; 430. Through groove; 50. Fastener. Detailed Implementation
[0025] 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.
[0026] 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.
[0027] 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.
[0028] like Figure 1As 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 mounting base 10, a cabinet mounting base 20, a connecting rod assembly 30, an elastic element 40, and a fastener 50. The door mounting base 10 is connected to the cabinet mounting base 20 via the connecting rod assembly 30, enabling the door mounting base 10 to rotate relative to the cabinet mounting base 20, thereby opening and closing the door. The elastic element 40 is used to cover the gap between the door mounting base 10 and the cabinet mounting base 20, preventing fingers from being pinched. The fastener 50 is used to install the elastic element 40 onto the door mounting base 10 or the cabinet mounting base 20.
[0029] Please continue reading. Figure 2 as well as Figure 3 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 hinge holes for rotatably installing the first connecting rod 31 and the third connecting rod 33.
[0030] 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, two second side plates 22, and an end plate 23. 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 them. The end plate 23 extends from the end of the second base plate 21 and is perpendicular to it. The end plate 23 is fixedly connected to the ends of the two second side plates 22. The second base plate 21, the two second side plates 22, and the end plate 23 together form a second receiving space 24. The second receiving space 24 is used to receive the connecting rod assembly 30 when closed, preventing damage to the connecting rod assembly 30. The second side plate 22 is provided with hinge holes for rotatably installing the second connecting rod 32 and the fourth connecting rod 34. Specifically, the end plate 23 is a flat plate to facilitate contact with the elastic element 40.
[0031] 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 third link 33 are all double-plate structures to enhance structural strength, while also accommodating other components, reducing the size of the anti-pinch hinge, and protecting the parts. The two ends of the first link 31 are rotatably connected to the door fixing seat 10 and the second link 32, respectively. The two ends of the second link 32 are rotatably connected to the first link 31 and the cabinet fixing seat 20, respectively. The two ends of the third link 33 are rotatably connected to the door fixing seat 10 and the second link 32, respectively. The two ends of the fourth link 34 are rotatably connected to the third link 33 and the cabinet fixing seat 20, respectively.
[0032] The elastic element 40 is installed on the door fixing seat 10 or the cabinet fixing seat 20 and abuts against the corresponding cabinet fixing seat 20 or door fixing seat 10 to cover the gap between the door fixing seat 10 and the cabinet fixing seat 20. Specifically, the elastic element 40 includes a fixing part 41, a bending part 42, and an abutting part 43. The two ends of the bending part 42 are fixedly connected to the fixing part 41 and the abutting part 43, and the bending part 42 is located between the fixing part 41 and the abutting part 43. The fixing part 41, the bending part 42, and the abutting part 43 are integrally formed. In this embodiment, the abutting part 43 is formed by bending the fixing part 41.
[0033] Specifically, the fixing part 41 is linear and has a fixing hole 410. The fixing part 41 is fixed to the mounting hole 110 of the first base plate 11 or the end plate 23 through the fixing hole 410. The bending part 42 is used for deformation, and the abutting part 43 is linear and is used to fit and abut against the end plate 23 or the first base plate 11. The abutting part 43 has a through groove 430, which can reduce the friction between the abutting part 43 and the end plate 23 and reduce the weight of the elastic member 40.
[0034] Fastener 50 is used to fix elastic element 40 to door mounting base 10 or cabinet mounting base 20.
[0035] Please continue reading. Figure 1 as well as Figure 4When assembling the anti-pinch hinge, the two ends of the first connecting rod 31 are rotatably connected to the door fixing seat 10 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 cabinet fixing seat 20, respectively. The two ends of the third connecting rod 33 are rotatably connected to the door fixing seat 10 and the second connecting rod 32, respectively. The two ends of the fourth connecting rod 34 are rotatably connected to the third connecting rod 33 and the cabinet fixing seat 20, respectively. At this time, a gap is formed between the end of the door fixing seat 10 and the end of the cabinet fixing seat 20. The fixing part 41 of the elastic element 40 is fixed to the mounting hole 110 of the first base plate 11. The contact part 43 of the elastic element 40 abuts against the end plate 23. At this time, the bending part 42 is directly opposite the gap between the door fixing seat 10 and the cabinet fixing seat 20.
[0036] Please continue reading. Figures 5 to 7 When the anti-pinch hinge is in use, as it moves from the fully open to the closed state, the gap between the end of the door fixing seat 10 and the end of the cabinet fixing seat 20 decreases, and the contact part 43 slides relative to the end plate 23 while restoring its deformation. When the anti-pinch hinge is in the fully open state, the angle between the fixing part 41 and the contact part 43 is obtuse, and the contact area between the end plate 23 and the contact part 43 is minimal. When the anti-pinch hinge is in the closed state, the angle between the fixing part 41 and the contact part 43 is right angle, and the contact area between the end plate 23 and the contact part 43 is maximized. During the use of the anti-pinch hinge, the elastic element 40 always covers the gap between the door fixing seat 10 and the cabinet fixing seat 20, preventing fingers from entering the gap and causing pinching, thus improving safety.
[0037] 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 is rotatably mounted between the cabinet mounting base and the door mounting base, the door mounting base rotates relative to the cabinet mounting base via the linkage assembly, and a gap is generated between the cabinet mounting base and the door mounting base, characterized in that: The anti-pinch hinge also includes an elastic element, one end of which is fixed to the cabinet mounting base or the door mounting base, and the other end of which abuts against the door mounting base or the cabinet mounting base to block the gap.
2. The anti-pinch hinge according to claim 1, characterized in that: The elastic element includes a fixing part, a bending part, and an abutting part. The fixing part, the bending part, and the abutting part are fixedly connected. The bending part is located between the fixing part and the abutting part. The fixing part is fixed to the cabinet fixing seat or the door fixing seat. The abutting part abuts against the door fixing seat or the cabinet fixing seat.
3. The anti-pinch hinge according to claim 2, characterized in that: The fixing part, the bending part, and the contacting part are integrally formed.
4. The anti-pinch hinge according to claim 2, characterized in that: Both the fixing part and the abutting part are linear.
5. The anti-pinch hinge according to claim 4, characterized in that: When the anti-pinch hinge is in the fully open state, the included angle between the fixing part and the contact part is an obtuse angle.
6. The anti-pinch hinge according to claim 4, characterized in that: When the anti-pinch hinge is in the closed state, the included angle between the fixing part and the contact part is a right angle.
7. The anti-pinch hinge according to claim 2, characterized in that: The contact portion is provided with a through groove, which extends along the length direction of the contact portion.
8. The anti-pinch hinge according to claim 2, characterized in that: The cabinet mounting base includes a second base plate, a second side plate, and an end plate. The second side plate and the end plate are fixed to the second base plate. The second side plate is rotatably connected to the connecting rod assembly. The end plate abuts against the contact part. During the opening of the anti-pinch hinge, the end plate slides along the contact part.
9. The anti-pinch hinge according to claim 8, characterized in that: When the anti-pinch hinge is in the closed state, the contact area between the end plate and the abutment is at its maximum; when the anti-pinch hinge is in the fully open state, the contact area between the end plate and the abutment is at its minimum.
10. The anti-pinch hinge according to claim 1, 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 door fixing seat and the second linkage, respectively. The two ends of the second linkage are rotatably connected to the first linkage and the cabinet fixing seat, respectively. The two ends of the third linkage are rotatably connected to the door fixing seat and the second linkage, respectively. The two ends of the fourth linkage are rotatably connected to the third linkage and the cabinet fixing seat, respectively.