A new oven door hinge

Abstract

The utility model discloses a novel oven door hinge, its technical scheme main points include the hinge body, and the hinge body includes the hinge shell, hinge arm and elastic component, and hinge arm and elastic component are connected each other through setting internal connecting component, and the elastic component includes spring push rod and spring fixed base, and spring push rod includes push rod stem portion and push rod head, and the main spring is clamped between push rod head and spring fixed base, and internal connecting component includes inner support structure and pin structure, and the both ends of inner support structure are connected with hinge arm and spring push rod each other through respectively setting support rivet and push rod rivet, and the pin structure includes pin seat and two spring pins, and the small spring is all set up on spring pin, and the small spring and main spring all establish compression spring, and the pin seat inside is equipped with hinge gyro wheel. The utility model has simple structure, guarantees the door body closing effect, long service life and the effect that hinge action is fluent.

Description

Technical Field

[0001] This utility model relates to the field of hinge technology, specifically to a novel oven door hinge. Background Technology

[0002] Currently, Chinese patent CN 219012281 U discloses a superior load-bearing short-distance double-spring hinge, comprising: a shell, a swing head, an inner support assembly, and a main tension spring; the inner support assembly is connected to the shell and the main tension spring at the middle of the shell, forming a first connection point, which is movable on a first groove formed by the shell; a second connection point is formed between the inner support assembly and the shell, and the inner support assembly swings around the second connection point during operation; the swing head is connected to the lower end of the shell, forming a third connection point; the second connection point is located close to the third connection point. In this invention, the second connection point is located close to the third connection point, and the distance between them is short, which can overcome the problem that the door glass of appliances such as ovens and microwave ovens needs to have a large opening to avoid the hinge's opening mechanism, making the hinge opening and closing smoother, improving the overall aesthetics, and reducing manufacturing costs.

[0003] In this patent, the upper end of the main tension spring is connected to the upper end of the outer shell via a fifth pin, and the lower end is connected to the upper end of the outer shell and the inner support via a first pin. Although the main tension spring, which stretches and deforms when the door is closed, will drive the inner support, and thus drive the swing head to reset and complete the hinge reset, the main tension spring is prone to breakage after long-term use, thereby affecting the closing effect and service life of the door. At the same time, the pressure pin is prone to uneven force on the left and right sides during use, which affects the rolling of the inner roller of the pressure pin, causing the swing head to move poorly during rotation, thus affecting the hinge's performance.

[0004] Therefore, it is essential to improve the existing hinges. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a novel oven door hinge that features a simple structure, ensures effective door closure, has a long service life, and allows for smooth hinge movement.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A novel oven door hinge, comprising a hinge body, the hinge body including a hinge shell and hinge arms and elastic components respectively disposed on the left and right sides of the hinge shell, the hinge arms and elastic components being interconnected by an internal connecting component, the elastic component including a spring push rod and a spring fixing seat sleeved on the spring push rod, the spring fixing seat having a push rod through hole adapted to the spring push rod, the spring push rod having a T-shaped structure, and the spring push rod including a push rod section and an integrally formed push rod section. A main spring, fitted onto the push rod, is sandwiched between the rod head, the push rod head, and the spring fixing seat. The internal connecting components include an inner support structure and a pin structure located at the bottom of the hinge housing. The two ends of the inner support structure are hinged to the hinge arm and the spring push rod by respectively setting support rivets and push rod rivets. The pin structure includes a pin seat and two spring pins fixed on the left and right sides of the pin seat. Each spring pin is fitted with a small spring that matches it. Both the small spring and the main spring are set as compression springs. The pin seat has a hinge roller that matches the hinge arm inside.

[0007] By adopting the above technical solution, the spring push rod, in conjunction with the main spring, replaces the main tension spring in the existing technology to perform the reset action on the internal connecting components and hinge arm. This effectively avoids the problem that the main tension spring is prone to breakage after long-term use, affecting the closing effect and service life of the door. At the same time, the pin structure has two spring pins, each with a small spring sleeve, ensuring that the pin seat and the hinge roller inside the pin seat are subjected to balanced forces. This avoids the problem in the existing technology where the pressure spring pin has only one rod, which can cause uneven force on the left and right sides of the pressure spring pin and the roller to deflect, resulting in the swing head not moving smoothly during rotation and affecting the hinge's performance.

[0008] The present invention is further configured such that: a spring bracket adapted to the main spring is also inserted inside the main spring, the spring bracket including an integral bracket rod and a bracket pad, the length of the bracket rod being shorter than the length of the main spring, and a rod groove adapted to the push rod rod being provided on the bracket rod, the end of the bracket rod being arc-shaped, the bracket pad being abutted and connected to the spring fixing seat, and a pad through hole adapted to the push rod through hole being provided on the bracket pad, and the two ends of the main spring being abutted and connected to the bracket pad and the push rod head respectively.

[0009] By adopting the above technical solution, the spring bracket is used to improve the reliability of the main spring's movement, thereby ensuring the reliability of the hinge body's movement. The rod groove and the through hole of the pad ensure the reliability of the main spring's extension and retraction movement. The bracket pad facilitates the main spring to transmit its elastic force to the spring fixing seat, extending the service life of the main spring.

[0010] The present invention is further configured such that: a head rivet and a push rod rivet are respectively provided on the push rod head and the push rod rod, and both ends of the head rivet and the push rod rivet are slidably connected to the hinge shell. The hinge shell is provided with a head limiting groove and a push rod limiting groove on both sides, which are adapted to the head rivet and the push rod rivet.

[0011] By adopting the above technical solution, the head rivet and push rod rivet cooperate with the head limiting slide groove and push rod limiting slide groove respectively, thereby limiting the left and right sliding position of the spring push rod, thus ensuring the reliability of the main spring extension and retraction action and effectively improving the reliability of the hinge body.

[0012] The present invention is further configured such that: the upper end of the spring fixing seat is provided with fixing rivets at both ends connected to the hinge housing, the lower end of the spring fixing seat is engaged with the hinge housing, and the bottom of the hinge housing is provided with a fixing groove adapted to the spring fixing seat.

[0013] By adopting the above technical solution, the fixing rivets and fixing slots are used to install and fix the spring fixing seat, thereby ensuring the reliability of the main spring's extension and retraction action.

[0014] The present invention is further configured such that: the pin holder is arranged in a U-shape, the pin holder has a roller groove adapted to the hinge roller, the hinge roller has roller rivets at both ends that are slidably connected to the hinge housing, the hinge housing has roller limiting grooves adapted to the roller rivets on both sides, and the pin holder also has two pin retaining slots adapted to the roller rivets on the side of the hinge arm, the pin retaining slots being located on the left and right sides of the hinge roller.

[0015] By adopting the above technical solution, the roller limiting groove facilitates the limitation of the left and right sliding position of the roller rivet, and then, together with the small spring and pin structure, limits the left and right sliding position of the hinge roller, thereby limiting the rotation of the hinge arm. When the hinge arm abuts against the hinge roller, the roller rivet pushes the pin seat and spring pin to move towards the pin lug side, so that the small spring is compressed. Conversely, when the hinge arm does not contact the hinge roller, the small spring pushes the pin seat away from the pin lug to reset.

[0016] The present invention is further configured such that: the hinge housing is provided with an integrally formed pin lug, the pin lug is folded inward into the hinge housing, and the pin lug has two pin through holes adapted to the end of the spring pin, the spring pin passes through the pin through holes and is slidably connected thereto, and the pin lug and the pin seat respectively abut against the two ends of the small spring.

[0017] By adopting the above technical solution, the two pin holes and the two spring pins cooperate with each other to make the socket stable in the left and right during use and not prone to deflection, thus ensuring the reliability of the hinge roller action and the reliability of the hinge body.

[0018] The present invention is further configured such that: the hinge shell is U-shaped, and one end of the hinge shell is hinged to the hinge arm by a hinge rivet; a positioning bushing is provided on the outer sleeve of the hinge rivet, and the positioning bushing passes through the hinge arm; the hinge shell is also provided with a movable slot and a limiting flange that are adapted to the hinge arm; a matching rear seat plate is fixed on the outer side of the limiting flange; a matching safety buckle is provided on the hinge arm, and the safety buckle is hinged to the hinge arm by a safety rivet; a limiting notch that is adapted to the hinge roller is provided on the hinge arm.

[0019] By adopting the above technical solution, the movable slot facilitates the rotation of the hinge arm, the limiting flange is used to limit the maximum rotation angle of the hinge arm, and the limiting notch facilitates cooperation with the hinge roller to keep the door closed when it is closed.

[0020] In summary, this utility model has the following beneficial effects:

[0021] 1. By using a spring push rod in conjunction with a main spring to replace the main tension spring in the existing technology, the internal connecting components and hinge arms are reset. This effectively avoids the problem that the main tension spring is prone to breakage after long-term use, which affects the closing effect and service life of the door. At the same time, the pin structure has two spring pins, and each spring pin is fitted with a small spring. This ensures that the pin seat and the hinge roller inside the pin seat are subjected to balanced forces. This avoids the problem in the existing technology where the pressure pin has only one rod, which causes uneven force on the left and right sides of the pressure pin and the roller to deflect, resulting in the swing head not moving smoothly during rotation and affecting the hinge's performance.

[0022] 2. The reliability of the main spring's movement is improved by using a spring bracket, which in turn ensures the reliability of the hinge body's movement. The rod groove and the through hole in the pad ensure the reliability of the main spring's extension and retraction. The bracket pad facilitates the main spring's transmission of elastic force to the spring fixing seat, extending the main spring's service life. The head rivet and push rod rivet cooperate with the head limiting groove and push rod limiting groove, respectively, to limit the left and right sliding position of the spring push rod, thereby ensuring the reliability of the main spring's extension and retraction and effectively improving the reliability of the hinge body. Attached Figure Description

[0023] Figure 1 This is a three-dimensional view of the present utility model.

[0024] Figure 2 These are two perspective views of this utility model.

[0025] Figure 3 This is the front view of the present invention.

[0026] Figure 4 This is a top view of the present invention.

[0027] Figure 5 for Figure 4 A cross-sectional view at point AA.

[0028] Figure 6 This is an exploded view of the present invention.

[0029] Figure 7 This is a schematic diagram of the present invention when closed.

[0030] Figure 8 This is a schematic diagram of the present invention when it is opened.

[0031] Figure 9 This is a schematic diagram of the present invention when fully opened.

[0032] Reference numerals: 1. Hinge housing; 11. Movable slot; 12. Limiting flange; 13. Rear seat plate; 14. Fixing slot; 15. Head limiting slide groove; 16. Push rod limiting slide groove; 17. Roller limiting slide groove; 18. Pin lug; 181. Pin through hole; 2. Hinge arm; 21. Hinge rivet; 22. Positioning bushing; 23. Safety buckle; 24. Safety rivet; 25. Limiting notch; 3. Spring push rod; 31. Push rod rod part; 311. Push rod rivet; 32. Push rod... 3. Rod head; 4. Spring fixing seat; 5. Fixing rivet; 6. Push rod through hole; 7. Main spring; 8. Spring bracket; 9. Bracket rod body; 10. Rod body groove; 11. Bracket pad; 2. Pad through hole; 32. Inner bracket structure; 4. Bracket rivet; 5. Pin structure; 6. Pin seat; 7. Roller groove; 8. Pin slot; 9. Spring pin; 10. Small spring; 11. Hinge roller; 12. Roller rivet. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings.

[0034] This embodiment discloses a novel oven door hinge, such as... Figures 1 to 9 As shown, it includes a hinge body, which includes a hinge housing 1 and hinge arms 2 and elastic components respectively disposed on the left and right sides of the hinge housing 1. The hinge arms 2 and elastic components are connected to each other by an internal connecting component.

[0035] The hinge housing 1 has a U-shaped structure, and one end of the hinge housing 1 is hinged to the hinge arm 2 by a hinge rivet 21. The hinge rivet 21 is fitted with a positioning bushing 22, which passes through the hinge arm 2. The hinge housing 1 is also provided with a movable slot 11 and a limiting flange 12 that are adapted to the hinge arm 2. The movable slot 11 facilitates the rotation of the hinge arm 2, and the limiting flange 12 is used to limit the maximum rotation angle of the hinge arm 2. A matching rear seat plate 13 is fixed to the outside of the limiting flange 12. The hinge arm 2 is provided with a matching safety buckle 23, and the safety buckle 23 is hinged to the hinge arm 2 by a safety rivet 24. The hinge arm 2 is provided with a limiting notch 25 that is adapted to the internal connecting components.

[0036] The elastic component includes a spring push rod 3 and a spring fixing seat 4 sleeved on the spring push rod 3. The spring fixing seat 4 has a push rod through hole 42 adapted to the spring push rod 3. The upper end of the spring fixing seat 4 is provided with fixing rivets 41 that are connected to the hinge housing 1 at both ends. The lower end of the spring fixing seat 4 is engaged with the hinge housing 1. The bottom of the hinge housing 1 has a fixing groove 14 adapted to the spring fixing seat 4. The spring push rod 3 is T-shaped and includes a push rod part 31 and a push rod head 32 integrated with it. A main spring 5 is sandwiched between the spring fixing seat 4 and the spring 5, which is sleeved on the push rod part 31. The push rod head 32 and the push rod part 31 are respectively provided with head rivets 321 and push rod rivets 311 that are slidably connected to both sides of the hinge housing 1. The hinge housing 1 is provided with head limiting grooves 15 and push rod limiting grooves 16 that are adapted to the push rod head 32 and the push rod part 31. The spring push rod 3 slides left and right in the head limiting grooves 15 and the push rod limiting grooves 16 through the head rivets 321 and the push rod rivets 311 to complete the compression and reset action of the main spring 5.

[0037] A spring bracket 6, adapted to the main spring 5, is also inserted inside it. The spring bracket 6 includes an integral bracket rod 61 and a bracket pad 62. The length of the bracket rod 61 is shorter than the length of the main spring 5, and the bracket rod 61 has a rod groove 611 adapted to the push rod 31. The end of the bracket rod 61 is arc-shaped, which facilitates the extension and retraction of the main spring 5 on the bracket rod 61. The bracket pad 62 abuts against the spring fixing seat 4, and the bracket pad 62 has a pad through hole 621 adapted to the push rod through hole 42. The two ends of the main spring 5 abut against the bracket pad 62 and the push rod head 32, respectively. The bracket pad 62 facilitates the main spring 5 to transmit the elastic force to the spring fixing seat 4, thus extending the service life of the main spring 5.

[0038] The internal connecting components include an inner support structure 7 and a pin structure 8 located at the bottom of the hinge housing 1. One end of the inner support structure 7 is hinged to the hinge arm 2 via a support rivet 71, and the other end of the inner support structure 7 is hinged to the spring push rod 3 via a push rod rivet 311. When the hinge body is open, the hinge arm 2 moves the inner support structure 7 to one side of the hinge arm 2, thereby pulling the spring push rod 3 to one side of the hinge arm 2 and compressing the main spring 5. When the hinge body is closed, the main spring 5 returns to its original position, thereby pushing the spring push rod 3 to its original position. The spring push rod 3 then pulls the inner support structure 7 and the hinge arm 2 to their original positions. The pin structure 8 includes a pin seat 81 and two spring pins 82 fixed on the left and right sides of the pin seat 81. Each spring pin 82 is fitted with a small spring 83 that matches it. Both the main spring 5 and the spring 81 are compression springs. Compression springs can prevent the tension spring from breaking during use and affecting the use of the hinge body. The pin seat 81 is U-shaped and has a hinge roller 84 adapted to the hinge arm 2 inside. The pin seat 81 has a roller groove 811 adapted to the hinge roller 84. The roller groove 811 facilitates the installation and fixation of the hinge roller 84. The hinge roller 84 is fitted with roller rivets 85 at both ends that are slidably connected to the hinge housing 1. The hinge housing 1 has roller limiting grooves 17 on both sides that are adapted to the roller rivets 85. The pin seat 81 is balanced by the two spring pins 82 and the small spring 83. The roller rivets 85 slide left and right in the roller limiting grooves 17, so that the hinge roller 84 is balanced by the left and right forces, ensuring the reliability of the rotation of the hinge arm 2.

[0039] The hinge housing 1 has an integrally formed pin lug 18, which folds inward and has two pin through holes 181 that mate with the ends of spring pins 82. The spring pins 82 pass through the pin through holes 181 and are slidably connected to them. The two ends of a small spring 83 abut against the pin lug 18 and the pin seat 81, respectively. The two pin through holes 181 and the two spring pins 82 cooperate to ensure that the socket moves smoothly left and right during use and is not prone to deflection, thus ensuring the movement of the hinge roller 84. To ensure the reliability of the hinge body, the pin holder 81 has two pin slots 812 that are adapted to the roller rivets 85 on the side of the hinge arm 2. The pin slots 812 are located on the left and right sides of the hinge roller 84. When the hinge arm 2 abuts against the hinge roller 84 and the roller rivets 85 push the pin holder 81 and the spring pin 82 to move towards the pin lug 18, the small spring 83 is compressed. Conversely, when the hinge arm 2 does not contact the hinge roller 84, the small spring 83 pushes the pin holder 81 away from the pin lug 18 to reset.

[0040] Its working process is as follows: When the door is closed, the small spring 83 pushes the pin seat 81, which in turn pushes the hinge roller 84 to abut against the limiting notch 25 of the hinge arm 2, preventing the door from loosening and opening; when the door is open, the hinge arm 2 rotates and squeezes the hinge roller 84 out of the limiting notch 25, so that the roller rivet 85 pushes the pin seat 81 to move under the action of the roller sliding groove and compresses the small spring 83. As the rotation angle of the hinge arm 2 increases, the small spring 83, the pin seat 81 and the hinge roller 84 return to their original positions. At the same time, the hinge arm 2 drives the inner support structure... The inner support structure 7 moves to one side, while the inner support structure 7 pulls the spring push rod 3 to move towards the hinge arm 2. During the movement of the spring push rod 3, the main spring 5 is continuously compressed and stores force. When the door is closed, the opposite of when the door is open, the main spring 5 returns to its original position and pushes the spring push rod 3 away from the hinge arm 2. Thus, the spring push rod 3 pulls the inner support structure 7 to move and drives the hinge arm 2 to return to its original position. When the hinge arm 2 rotates to the point of almost closing, the hinge arm 2 abuts against the hinge roller 84 and causes the hinge roller 84 to engage in the limiting notch 25, completing the door closing action.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel oven door hinge, comprising a hinge body, the hinge body including a hinge shell (1) and hinge arms (2) and elastic components respectively disposed on the left and right sides of the hinge shell (1), the hinge arms (2) and the elastic components being interconnected by an internal connecting component, characterized in that: The elastic component includes a spring push rod (3) and a spring fixing seat (4) sleeved on the spring push rod (3). The spring fixing seat (4) has a push rod through hole (42) adapted to the spring push rod (3). The spring push rod (3) is T-shaped and includes a push rod part (31) and a push rod head (32) integral with it. A main spring (5) sleeved on the push rod part (31) is sandwiched between the push rod head (32) and the spring fixing seat (4). The internal connecting component includes an inner support structure (7) and a hinge housing (1). The bottom pin structure (8) and the inner support structure (7) are connected to the hinge arm (2) and the spring push rod (3) by means of support rivets (71) and push rod rivets (311) respectively. The pin structure (8) includes a pin seat (81) and two spring pins (82) fixed on the left and right sides of the pin seat (81). Each spring pin (82) is fitted with a small spring (83) that matches it. Both the small spring (83) and the main spring (5) are compression springs. The pin seat (81) is equipped with a hinge roller (84) that matches the hinge arm (2).

2. The novel oven door hinge according to claim 1, characterized in that: The main spring (5) is also provided with a spring bracket (6) that is compatible with it. The spring bracket (6) includes an integral bracket rod (61) and a bracket pad (62). The length of the bracket rod (61) is shorter than the length of the main spring (5). The bracket rod (61) is provided with a rod groove (611) that is compatible with the push rod (31). The end of the bracket rod (61) is arc-shaped. The bracket pad (62) is connected to the spring fixing seat (4). The bracket pad (62) is provided with a pad through hole (621) that is compatible with the push rod through hole (42). The two ends of the main spring (5) are connected to the bracket pad (62) and the push rod head (32) respectively.

3. A novel oven door hinge according to claim 2, characterized in that: The push rod head (32) and the push rod rod (31) are respectively provided with a head rivet (321) and a push rod rivet (311). Both ends of the head rivet (321) and the push rod rivet (311) are slidably connected to the hinge shell (1). The hinge shell (1) is provided with a head limiting groove (15) and a push rod limiting groove (16) on both sides, which are adapted to the head rivet (321) and the push rod rivet (311).

4. A novel oven door hinge according to claim 3, characterized in that: The upper end of the spring fixing seat (4) is provided with fixing rivets (41) that are connected to the hinge housing (1) at both ends. The lower end of the spring fixing seat (4) is engaged with the hinge housing (1). The bottom of the hinge housing (1) is provided with a fixing groove (14) that is compatible with the spring fixing seat (4).

5. A novel oven door hinge according to claim 1, characterized in that: The pin holder (81) is arranged in a U-shape. The pin holder (81) has a roller groove (811) adapted to the hinge roller (84). The hinge roller (84) is provided with roller rivets (85) at both ends that are slidably connected to the hinge housing (1). The hinge housing (1) has roller limiting grooves (17) adapted to the roller rivets (85) on both sides. The pin holder (81) also has two pin slots (812) adapted to the roller rivets (85) on the side of the hinge arm (2). The pin slots (812) are located on the left and right sides of the hinge roller (84).

6. A novel oven door hinge according to claim 5, characterized in that: The hinge housing (1) is provided with an integral pin lug (18). The pin lug (18) is folded inward into the hinge housing (1), and the pin lug (18) has two pin through holes (181) that are adapted to the ends of the spring pin (82). The spring pin (82) passes through the pin through holes (181) and is slidably connected to them. The pin lug (18) and the pin seat (81) respectively abut against the two ends of the small spring (83).

7. A novel oven door hinge according to claim 1, characterized in that: The hinge housing (1) is arranged in a U-shape, and one end of the hinge housing (1) is hinged to the hinge arm (2) by a hinge rivet (21). The hinge rivet (21) is fitted with a positioning bushing (22), and the positioning bushing (22) passes through the hinge arm (2). The hinge housing (1) is also provided with a movable slot (11) and a limiting flange (12) that are adapted to the hinge arm (2). A matching rear seat plate (13) is fixed outside the limiting flange (12). A matching safety buckle (23) is provided on the hinge arm (2), and the safety buckle (23) is hinged to the hinge arm (2) by a safety rivet (24). A limiting notch (25) that is adapted to the hinge roller (84) is provided on the hinge arm (2).

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