Hinge assembly for oven

Abstract

A hinge assembly for an oven, comprising a reset hinge A and a buffer hinge B respectively installed on both sides of an oven door, wherein the reset hinge A and the buffer hinge B both comprise a main body fixedly connected to the oven and a hinge arm connected to the oven door, the hinge arm being rotatably hingedly installed on the main body, the hinge arm being connected to a tension spring hooked at the tail of the main body through a pull arm, the tension force generated by the tension spring pulling the hinge arm to always swing in the closing direction through the pull arm; wherein, in the buffer hinge B, a buffer is also installed between the pull arm and the main body, and the buffer plays a damping role on the movement speed of the pull arm in the buffer hinge B in the door closing direction. The beneficial effect of the utility model is that although the buffer is eliminated in one hinge of the present invention, the oven door is ensured to be closed smoothly and slowly through the optimized design of the buffer hinge on the other side, and the impact and noise during closing are effectively prevented.

Description

Technical Field

[0001] The utility model relates to a hinge, in particular to a hinge group for an oven. Background Art

[0002] As one of the most commonly used appliances in the kitchen, the design of the oven door is crucial to the user experience. In particular, the door opening and closing mechanism directly affects the convenience and safety of use. In traditional oven door hinge systems, a common problem is that the door may produce a violent collision sound when closing, and even damage the oven door or body. To alleviate this problem, many manufacturers have adopted a hinge design with a buffer.

[0003] In the buffer mechanism of the prior art, the role of the buffer is to provide resistance in the final stage of door closing, thereby slowing down the closing speed of the door and achieving smooth and silent closing. According to the type of buffer, these mechanisms can be divided into hydraulic buffers, pneumatic buffers, and spring-based buffer systems. Each type has its own unique characteristics and application scenarios, but they all aim to provide a damping force to control the movement of the door.

[0004] Although hinge systems with buffers play an important role in improving user experience, their design and implementation inevitably increase manufacturing costs and complexity. Specifically, a notable feature of traditional designs is that buffers are provided on both sides of the oven door. This symmetrical configuration ensures smooth closing of the door, but it also means that two buffers are required for each oven door hinge system. This not only increases the number of parts, but also increases the complexity of the assembly and debugging process, leading to an increase in overall costs.

[0005] In addition, as the market becomes more cost-sensitive, traditional hinge systems with buffers face challenges in price competition, so further improvements are necessary. Utility Model Content

[0006] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a hinge assembly for an oven which has a simple structure, is easy to use and can effectively maintain the performance of the product.

[0007] The purpose of the utility model is achieved in the following way: a hinge group for an oven, comprising a reset hinge A and a buffer hinge B respectively installed on both sides of an oven door, wherein the reset hinge A and the buffer hinge B both comprise a main body fixedly connected to the oven and a hinge arm connected to the oven door, the hinge arm being rotatably hingedly installed on the main body, the hinge arm being connected to a tension spring hooked at the tail of the main body through a pull arm, the tension force generated by the pull spring pulling the hinge arm through the pull arm to always swing in the closing direction; wherein, in the buffer hinge B, a buffer is also installed between the pull arm and the main body, the buffer having a damping effect on the movement speed of the pull arm in the buffer hinge B in the direction of closing the door.

[0008] Furthermore: in the reset hinge A, the tail of the pull arm is connected to a pull rod, one end of the tension spring is hooked on the pull rod, and the other end is hooked on the main body.

[0009] Furthermore: the cross section of the main body is arranged as an open slot, and the tension arm and the tension spring are installed in the open slot of the main body.

[0010] Furthermore: the pull rod is provided with two pieces, which are respectively connected to the left and right ends of the pull arm. One end of the pull rod is hinged to the pull arm through a first hinge shaft, and the other end is hooked to the tension spring through a second hinge shaft.

[0011] Furthermore: a first guide groove is provided on the main body, and the first hinge shaft is located in the first guide groove and slides; a second guide groove is provided on the main body, and the second hinge shaft is located in the second guide groove and slides.

[0012] Furthermore: the buffer is a self-resetting compression damping hydraulic cylinder.

[0013] Furthermore: a shift fork is slidably installed in the main body, a roller is arranged at one end of the shift fork facing the hinge arm, a compression spring is arranged between the shift fork and the main body, and the compression spring pushes the roller to always move toward the hinge arm through the shift fork, so that the roller slides on the side wall of the shift fork.

[0014] Furthermore, a concave locking groove is arranged on the side wall of the hinge arm, and when the hinge is closed, the roller is inserted into the locking groove to lock the hinge after closing.

[0015] The hinge arm is also hingedly provided with a locking plate, the cross section of which is in the shape of an "n" and is arranged across the left and right end surfaces of the hinge arm. The hinge arm is also provided with an inner groove, in which the locking plate is movably installed.

[0016] The beneficial effects of the utility model are: 1. Simple structure, low production cost and improved market competitiveness. 2. Although the present invention eliminates the buffer in one side hinge, the optimized design of the buffer hinge on the other side ensures the smooth and slow closing of the oven door, effectively preventing the impact and noise during closing. In particular, the high-efficiency buffer introduced in the buffer hinge can provide sufficient damping during the door closing process to control the closing speed of the door, ensuring safety and comfort during use. 3. The present invention optimizes the collaborative working mechanism of the reset hinge and the buffer hinge while setting the buffer on one side, which not only reduces the number of components but also maintains the functionality and reliability of the system. The collaborative design of the reset hinge and the buffer hinge ensures that even when the number of buffers is reduced, the oven door can still achieve smooth and accurate opening and closing actions without affecting its performance and durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the general assembly effect diagram of the utility model.

[0018] Figure 2 , 3 This is the structural assembly diagram of the reset hinge A in the utility model.

[0019] Figure 4 , 5 This is the structural assembly diagram of the buffer hinge B in the utility model.

[0020] Figure 6 This is a schematic diagram of the hinge arm structure of the utility model. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below with reference to the accompanying drawings. A hinge assembly for an oven, comprising a reset hinge A and a buffer hinge B respectively installed on both sides of an oven door, wherein the reset hinge A and the buffer hinge B both comprise a main body 1 fixedly connected to the oven and a hinge arm 2 connected to the oven door, wherein the hinge arm 2 is rotatably hingedly installed on the main body 1, wherein the hinge arm 2 is connected to a tension spring 4 hooked at the tail of the main body 1 through a pull arm 3, wherein the tension generated by the tension spring 4 pulls the hinge arm 2 to always swing in the closing direction through the pull arm 3; wherein in the buffer hinge B, a buffer 5 is also installed between the pull arm 3 and the main body 1, wherein the buffer 5 plays a damping role in the movement speed of the pull arm 3 in the buffer hinge B in the door closing direction.

[0022] In one embodiment, in the reset hinge A, the tail of the pull arm 3 is connected to a pull rod 6 , one end of the tension spring 4 is hooked on the pull rod 6 , and the other end is hooked on the main body 1 .

[0023] In one embodiment, the cross section of the main body 1 is arranged in an open groove, and the tension arm 3 and the tension spring 4 are installed in the open groove of the main body 1.

[0024] In one embodiment, the pull rod 6 is provided with two pieces, which are respectively connected to the left and right ends of the pull arm 3. One end of the pull rod 6 is hinged to the pull arm 3 through a first hinge shaft 7, and the other end is hooked to the tension spring 4 through a second hinge shaft 8.

[0025] In one embodiment, a first guide groove 9 is provided on the main body 1, and the first hinge shaft 7 is located in the first guide groove 9 and slides; a second guide groove 10 is provided on the main body 1, and the second hinge shaft 8 is located in the second guide groove 10 and slides.

[0026] In one embodiment, the buffer 5 is a self-resetting compression damping hydraulic cylinder.

[0027] In one of the embodiments, a fork 11 is also slidably installed in the main body 1, and a roller 12 is provided at one end of the fork 11 facing the hinge arm 2. A compression spring is provided between the fork 11 and the main body 1. The compression spring pushes the roller 12 to always move toward the hinge arm 2 through the fork 11, so that the roller 12 slides on the side wall of the fork 11.

[0028] In one embodiment, a concave locking groove 13 is provided on the side wall of the hinge arm 2, and when the hinge is closed, the roller 12 is inserted into the locking groove 13 to lock the hinge after closing.

[0029] In one embodiment, a locking plate 14 is hingedly mounted on the hinge arm 2. The locking plate 14 has an "n"-shaped cross-section and is arranged across the left and right end surfaces of the hinge arm 2. An inner groove 15 is also arranged on the hinge arm 2, and the locking plate 14 is movably mounted in the inner groove 15.

[0030] Working Principle: The single buffer oven door hinge system of the present invention comprises a reset hinge A and a buffer hinge B, which are respectively installed on both sides of the oven door. The system has a unique structure and working principle, and is designed to provide a smooth and efficient door closing mechanism while significantly reducing production costs.

[0031] The reset hinge A consists of a main body 1 fixedly connected to the oven and a hinge arm 2 connected to the oven door. The hinge arm 2 is connected to a tension spring 4 at the rear of the main body 1 through a pull arm 3. When the oven door is opened, the tension generated by the tension spring 4 acts on the hinge arm 2 through the pull arm 3, causing it to swing in the closing direction. This design ensures that the oven door can automatically start the closing process at any opening angle, improving the convenience and safety in use.

[0032] The buffer hinge B is provided with a buffer 5 on the basis of the reset hinge, and is located between the pull arm 3 and the main body 1. When the oven door is closed, the buffer 5 starts to play a role, and controls the movement speed of the hinge arm 2 through damping, so as to achieve slow and smooth closing of the door, thereby avoiding the noise and impact caused by the sudden closing of the door, and protecting the integrity of the oven door and the hinge system.

[0033] Compared with the conventional technology, the present invention effectively reduces the number of high-cost buffers by using a reset hinge A without a buffer on one side of the oven door and a buffer hinge B with a buffer 5 on the other side. This design significantly reduces the material and manufacturing costs, simplifies the assembly process, and improves the overall cost efficiency.

[0034] Although one buffer is reduced, the system can still ensure the oven door closes smoothly and slowly by optimizing the design of the buffer hinge B. The addition of the buffer 5 effectively decelerates and controls the movement of the door in the final stage of closing the door, avoiding the impact of hard collisions, which not only protects the oven door and the hinge system, but also improves the user experience.

[0035] The design of the reset hinge A enables the oven door to automatically start the closing process when it is closed to the set position, thereby improving the convenience and safety of use. In order to ensure the airtightness of the oven door after it is closed, a concave locking groove 13 is provided on the side wall of the hinge arm 2. After the hinge is closed, the roller 12 is inserted into the locking groove 13 to lock the hinge after it is closed. This prevents leakage of the oven door and ensures its thermal efficiency.

[0036] The present invention reduces the number of movable parts, reduces the possible failure rate in long-term use, and improves the reliability and durability of the system. The reduced number of parts also means that maintenance and possible repair work are simpler and more economical.

[0037] In summary, the single buffer oven door hinge system of the present invention, through its unique design, not only has excellent functionality in keeping the oven door smoothly closed, but also shows significant technical advantages in cost-effectiveness, ease of use and system reliability, so it can be widely promoted and used.

[0038] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A hinge assembly for an oven, characterized in that: The invention comprises a reset hinge (A) and a buffer hinge (B) respectively mounted on both sides of an oven door, wherein the reset hinge (A) and the buffer hinge (B) both comprise a main body (1) fixedly connected to the oven door and a hinge arm (2) connected to the oven door, wherein the hinge arm (2) is rotatably hingedly mounted on the main body (1), and the hinge arm (2) is connected to a tension spring (4) hooked at the tail of the main body (1) via a pull arm (3), and the tension force generated by the tension spring (4) pulls the hinge arm (2) through the pull arm (3) to always swing in the closing direction; wherein a buffer (5) is further mounted between the pull arm (3) and the main body (1) in the buffer hinge (B), and the buffer (5) has a damping effect on the movement speed of the pull arm (3) in the buffer hinge (B) in the door closing direction.

2. The hinge assembly for an oven according to claim 1, characterized in that: In the reset hinge (A), the tail of the pull arm (3) is connected to a pull rod (6), one end of the tension spring (4) is hooked on the pull rod (6), and the other end is hooked on the main body (1).

3. The hinge assembly for an oven according to claim 1 or 2, characterized in that: The cross section of the main body (1) is arranged in the form of an open groove, and the tension arm (3) and the tension spring (4) are installed in the open groove of the main body (1).

4. The hinge assembly for an oven according to claim 2, characterized in that: The pull rod (6) is provided with two pieces, which are respectively connected to the left and right ends of the pull arm (3); one end of the pull rod (6) is hinged to the pull arm (3) through a first hinge shaft (7), and the other end is hooked to the tension spring (4) through a second hinge shaft (8).

5. The hinge assembly for an oven according to claim 4, characterized in that: The main body (1) is provided with a first guide groove (9), and the first hinge shaft (7) is located in the first guide groove (9) and slides; the main body (1) is provided with a second guide groove (10), and the second hinge shaft (8) is located in the second guide groove (10) and slides.

6. The hinge assembly for an oven according to claim 4, characterized in that: The buffer (5) is a self-resetting compression damping type hydraulic cylinder.

7. The hinge assembly for an oven according to claim 1, characterized in that: A shift fork (11) is also slidably mounted in the main body (1), a roller (12) is arranged at one end of the shift fork (11) facing the hinge arm (2), a compression spring is arranged between the shift fork (11) and the main body (1), and the compression spring pushes the roller (12) to always move in the direction of the hinge arm (2) through the shift fork (11), so that the roller (12) slides on the side wall of the shift fork (11).

8. The hinge assembly for an oven according to claim 7, characterized in that: A concave locking groove (13) is provided on the side wall of the hinge arm (2); when the hinge is closed, the roller (12) is inserted into the locking groove (13), thereby locking the hinge after it is closed.

9. The hinge assembly for an oven according to claim 1, characterized in that: The hinge arm (2) is also hingedly mounted with a locking plate (14), the locking plate (14) having an "n"-shaped cross section and being arranged across the left and right end surfaces of the hinge arm (2). The hinge arm (2) is also provided with an inner groove (15), and the locking plate (14) is movably mounted in the inner groove (15).

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