Novel balance hinge of oven

Abstract

The invention relates to the technical field of oven hinges, and provides a novel balance hinge of an oven, which comprises a lower hinge plate and an upper hinge plate, one end of the lower hinge plate and one end of the upper hinge plate are fixedly connected with an oven body and an oven cover respectively, the inner side of the lower hinge plate is fixedly connected with a connecting shaft, and the bottom of the lower hinge plate is provided with a double-sleeve spring telescopic mechanism. The double-sleeve spring telescopic mechanism comprises a mounting plate, the bottom of the mounting plate is fixedly connected with an outer sleeve, the inner side of the outer sleeve is sleeved with an inner sleeve, the inner side of the inner sleeve is slidably connected with a movable seat, the top of the movable seat is provided with a spring piece, the bottom of the outer sleeve is provided with a guide piece, and the outer side of the outer sleeve is provided with a locking piece. Through the double-sleeve spring telescopic mechanism installed at the bottom of the hinged plate, a spring piece in the double-sleeve spring telescopic mechanism is compressed or released when the furnace cover is opened and closed, a counter-acting force balanced with the gravity of the furnace cover is provided, the furnace cover can be kept at a needed angle without continuous force, and labor-saving operation in the opening and closing process of the furnace cover is achieved.

Description

Technical Field

[0001] This invention relates to the field of oven hinge technology, and more specifically, to a novel balanced hinge for an oven. Background Technology

[0002] In the field of oven hinge technology, especially for large barbecue grills, commercial ovens, or outdoor ovens with heavy glass lids, the experience of opening and closing the lid is crucial, and existing hinge structures suffer from several common technical shortcomings: First, existing hinges are usually simple rotating shaft structures, and the weight of the oven lid is entirely supported by the user's arm strength. When opening and keeping it open, the user needs to exert continuous force, especially for large and heavy ovens, whose oven lids are quite heavy. This makes operation very strenuous and results in a poor user experience. Secondly, due to the lack of an effective balancing or locking mechanism, existing hinges cannot stably hover at any angle after the oven lid is opened. The oven lid is prone to suddenly sliding down and closing due to its own weight, which may not only pinch the user's hand, but also cause a violent collision with the oven body, generating noise, or even damaging the oven itself or the glass lid, posing a safety hazard. Third, existing hinge designs typically only provide rotation functionality, lacking integrated functions such as power assist, adjustment, and safety locking. To achieve similar functions, it may be necessary to add complex external devices such as gas springs or hydraulic rods, which not only increases costs and space requirements but also poses challenges to reliability and durability in high-temperature environments. Fourth, the weight of the oven lid may vary depending on the oven model. Traditional fixed hinge structures cannot be adjusted according to the actual weight, making it difficult for one hinge to fit multiple products and resulting in poor versatility. If the oven lid is too heavy, there will be insufficient traction; if it is too light, the lid may not close smoothly or may pop open automatically. Fifth, many devices with simple locking functions may be inconvenient to operate or have unreliable locking, and are prone to wear and failure after long-term use. At the same time, additional locks may also be lost or forgotten to be used. In view of this, the present invention proposes a novel balanced hinge for an oven. Summary of the Invention

[0003] This invention proposes a novel balanced hinge for ovens, which solves the problem of the difficulty in opening or closing the oven lid in the prior art.

[0004] The technical solution of the present invention is as follows: A novel balanced hinge for an oven includes a lower hinge plate and an upper hinge plate. One end of the lower hinge plate and the upper hinge plate are fixedly connected to the oven body and the oven cover, respectively. A connecting shaft is fixedly connected to the inner side of the lower hinge plate. The upper hinge plate is rotatably connected to the lower hinge plate through the connecting shaft. A double-sleeve spring telescopic mechanism is provided at the bottom of the lower hinge plate. The double-sleeve spring telescopic mechanism includes an mounting plate fixedly connected to the bottom of the lower hinge plate. An outer sleeve is fixedly connected to the bottom of the mounting plate. An inner sleeve is sleeved on the inner side of the outer sleeve. A movable seat is slidably connected to the inner side of the inner sleeve. A spring is provided at the top of the movable seat. A guide member is provided at the bottom of the outer sleeve to guide the spring member. A locking member is provided on the outer side of the outer sleeve to restrict the downward movement of the movable seat.

[0005] Preferably, the outer diameter of the inner sleeve is the same as the inner diameter of the outer sleeve.

[0006] Preferably, the spring component includes a first spring sleeved inside the inner sleeve, the bottom end of the first spring abutting against the movable seat, and the top end of the first spring abutting against the top wall of the inner sleeve.

[0007] Preferably, the spring component further includes a second spring concentrically arranged with the first spring, the bottom end of the second spring abutting against the movable seat, and a guide sleeve fixedly connected to the top end of the second spring, the guide sleeve being fixedly connected to the inner top wall of the inner sleeve.

[0008] Preferably, the diameter of the first spring is larger than the diameter of the second spring, and the two springs have the same length.

[0009] Preferably, the guide includes a fixing plate fixedly connected to the inner side of the outer sleeve, a positioning plate fixedly connected to the top of the fixing plate, a connecting screw that penetrates the outer sleeve and the inner sleeve inserted into the inner side of the positioning plate, and a threaded cap that is threadedly connected to the threaded section of the connecting screw on the top of the positioning plate.

[0010] Preferably, the top end of the connecting screw has a smooth structure, and the top end of the connecting screw is slidably connected to the guide sleeve.

[0011] Preferably, the locking element includes a pin that is inserted into the inner side of the outer sleeve and the inner sleeve, and a hanging rope is attached to one end of the pin.

[0012] Preferably, one end of the pin has a mating groove, which is slidably engaged with the connecting screw.

[0013] Preferably, the outer side of the inner sleeve has a first slot, and the outer side of the outer sleeve has a second slot corresponding to the first slot, and the pin slides in cooperation with the first slot and the second slot.

[0014] The working principle and beneficial effects of this invention are as follows: 1. Through the double-sleeve spring telescopic mechanism installed at the bottom of the hinge plate, the internal spring is compressed or released when the furnace lid is opened and closed, providing a reaction force that balances the weight of the furnace lid. Users only need to apply a small initial force to easily open and close the heavy furnace lid, and can keep the furnace lid at the required angle without continuous force. This realizes labor-saving operation of opening and closing the furnace lid, and can make it stably hover at any angle, greatly improving the convenience and comfort of operation, and fundamentally solving the problem of laborious operation.

[0015] 2. The inner sleeve and outer sleeve are tightly fitted together (outer diameter and inner diameter are the same), forming a stable motion track to prevent internal mechanism shaking and uneven load; by using concentric double springs combined with guide sleeves, it is ensured that the spring force is always transmitted axially, avoiding lateral bending and jamming. This ensures that the furnace cover moves smoothly and without impact, eliminating the risk of pinching hands, violent collisions and noise caused by sudden sliding, making it safer and more reliable to use.

[0016] 3. A unique adjustable guide mechanism allows the connecting screw to move up and down simply by rotating the threaded cap, thereby changing the pre-compression of the spring and adjusting the supporting force it provides. This achieves "one hinge for multiple uses," greatly improving the product's versatility and reducing the manufacturer's production and inventory costs. Regardless of the weight of the furnace lid, optimal balance can be achieved through adjustment, solving the problem of poor adaptability.

[0017] 4. The locking mechanism provides a mechanical safety locking function. When the furnace cover needs to be fixed (such as for cleaning, moving, or in windy weather), the pin is inserted into the first and second slots to physically restrict the downward movement of the movable seat, thereby locking the entire spring mechanism. This provides a real safety guarantee and prevents any accidental closing of the furnace cover. The operation is intuitive and convenient, solving the problems of unreliable locking and easy loss of locks. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the connection structure between a novel balanced hinge and the oven body of an oven according to the present invention. Figure 2 This is a schematic diagram of the structure of a novel balanced hinge for an oven according to the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the structure of a novel balanced hinge for an oven according to the present invention. Figure 2 ; Figure 4 This is a cross-sectional view of a novel balanced hinge for an oven according to the present invention. Figure 5 This is a schematic diagram of the structure of the double-sleeve spring telescopic mechanism of the present invention; Figure 6 This is a schematic diagram of the structure of the spring component of the present invention; Figure 7 This is a schematic diagram of the structure of the guide component of the present invention; Figure 8 This is a schematic diagram of the locking component of the present invention.

[0020] In the diagram: 1. Lower hinge plate; 2. Upper hinge plate; 3. Connecting shaft; 4. Double sleeve spring telescopic mechanism; 41. Mounting plate; 42. Outer sleeve; 43. Inner sleeve; 44. Movable seat; 45. Spring component; 451. First spring; 452. Second spring; 453. Guide sleeve; 46. First slot; 47. Second slot; 48. Guide component; 481. Fixing plate; 482. Positioning plate; 483. Connecting screw; 484. Threaded cap; 5. Locking component; 51. Pin; 52. Hanging rope; 53. Connecting groove; 100. Furnace body. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figures 1 to 8 As shown, this embodiment proposes a novel balanced hinge for an oven, including a lower hinge plate 1 and an upper hinge plate 2. One end of the lower hinge plate 1 and the upper hinge plate 2 are fixedly connected to the oven body and the oven cover, respectively. A connecting shaft 3 is fixedly connected to the inner side of the lower hinge plate 1. The upper hinge plate 2 is rotatably connected to the lower hinge plate 1 through the connecting shaft 3. A double-sleeve spring telescopic mechanism 4 is provided at the bottom of the lower hinge plate 1. The double-sleeve spring telescopic mechanism 4 includes a mounting plate 41 fixedly connected to the bottom of the lower hinge plate 1. An outer sleeve 42 is fixedly connected to the bottom of the mounting plate 41. An inner sleeve 43 is sleeved on the inner side of the outer sleeve 42. The outer diameter of the inner sleeve 43 is the same as the inner diameter of the outer sleeve 42. A movable seat 44 is slidably connected to the inner side of the inner sleeve 43. A spring member 45 is provided at the top of the movable seat 44. A guide member 48 is provided at the bottom of the outer sleeve 42 to guide the spring member 45. A locking member 5 for restricting the downward movement of the movable seat 44 is provided on the outer side of the outer sleeve 42.

[0023] In this embodiment, when the furnace cover is opened or closed, the upper hinge plate 2 rotates around the connecting shaft 3, driving the double sleeve spring telescopic mechanism 4 to move; the spring 45 provides a counterforce through compression and release to balance the weight of the furnace cover, realizing easy opening and closing and automatically maintaining the opening angle; the weight of the furnace cover is automatically balanced by the spring mechanism, reducing the operating force, and the double sleeve structure enhances stability and prevents the spring from being unbalanced.

[0024] In a further preferred embodiment of the present invention, the spring member 45 includes a first spring 451 sleeved inside the inner sleeve 43. The bottom end of the first spring 451 abuts against the movable seat 44, and the top end of the first spring 451 abuts against the top wall of the inner sleeve 43. A second spring 452, concentrically arranged with the first spring 451, is sleeved inside the inner sleeve 43. The bottom end of the second spring 452 abuts against the movable seat 44, and a guide sleeve 453 is fixedly connected to the top end of the second spring 452. The guide sleeve 453 is fixedly connected to the inner top wall of the inner sleeve 43. The diameter of the first spring 451 is larger than the diameter of the second spring 452, and the lengths of the two are the same.

[0025] In this embodiment, the two springs are arranged concentrically to form a composite spring system. The first spring 451 provides the main supporting force, the second spring 452 enhances stability and guides the movement direction of the first spring 451, and the guide sleeve 453 further ensures the linear movement of the spring and avoids lateral bending. The dual-spring design improves the load-bearing capacity and durability, the guide sleeve reduces spring wear and extends service life, and the concentric structure saves space, making it suitable for compact installation environments.

[0026] In a further preferred embodiment of the present invention, the guide member 48 includes a fixing plate 481 fixedly connected to the inner side of the outer sleeve 42. A positioning plate 482 is fixedly connected to the top of the fixing plate 481. A connecting screw 483 penetrating the outer sleeve 42 and the inner sleeve 43 is inserted into the inner side of the positioning plate 482. A threaded cap 484 is provided on the top of the positioning plate 482 and threadedly connected to the threaded section of the connecting screw 483. The top end of the connecting screw 483 has a smooth structure and is slidably connected to the guide sleeve 453.

[0027] In this embodiment, a rigid guide path is provided by passing the connecting screw 483 through the center of the spring. The spring preload can be adjusted by rotating the threaded cap 484, thereby adapting to furnace covers of different weights and enhancing the adaptability of the hinge. The smooth top end of the connecting screw 483 slides with the guide sleeve to reduce friction and ensure that the spring always moves axially, avoiding jamming, thereby improving the reliability and maintainability of the overall structure.

[0028] In a further preferred embodiment of the present invention, the locking member 5 includes a pin 51 inserted into the inner side of the outer sleeve 42 and the inner sleeve 43. A hanging rope 52 is attached to one end of the pin 51, and a mating groove 53 is provided at one end of the pin 51. The mating groove 53 is slidably engaged with the connecting screw 483. A first slot 46 is provided on the outer side of the inner sleeve 43, and a second slot 47 corresponding to the first slot 46 is provided on the outer side of the outer sleeve 42. The pin 51 is slidably engaged with the first slot 46 and the second slot 47.

[0029] In this embodiment, when the furnace lid needs to be fixed in position (such as for cleaning or transportation), the pin 51 is inserted into the first slot 46 and the second slot 47 to restrict the downward movement of the movable seat 44, thereby locking the spring mechanism and providing a mechanical safety lock to prevent the furnace lid from closing accidentally. The mating groove 53 cooperates with the connecting screw 483 to ensure that the pin 51 is inserted in the correct position; the hanging rope 52 facilitates the storage and retrieval of the pin 51. The structure is simple, the operation is convenient, and the safety of use is enhanced, making it especially suitable for outdoor environments.

[0030] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A novel balanced hinge for an oven, comprising a lower hinge plate (1) and an upper hinge plate (2), wherein one end of the lower hinge plate (1) and the upper hinge plate (2) are respectively fixedly connected to the oven body and the oven lid, characterized in that, The lower hinge plate (1) is fixedly connected to the inner side of the connecting shaft (3). The upper hinge plate (2) is rotatably connected to the lower hinge plate (1) through the connecting shaft (3). The bottom of the lower hinge plate (1) is provided with a double sleeve spring telescopic mechanism (4). The double sleeve spring telescopic mechanism (4) includes a mounting plate (41) fixedly connected to the bottom of the lower hinge plate (1). The bottom of the mounting plate (41) is fixedly connected to an outer sleeve (42). An inner sleeve (43) is sleeved on the inner side of the outer sleeve (42). A movable seat (44) is slidably connected on the inner side of the inner sleeve (43). A spring element (45) is provided on the top of the movable seat (44). A guide element (48) is provided at the bottom of the outer sleeve (42) to guide the spring element (45). A locking element (5) is provided on the outer side of the outer sleeve (42) to restrict the downward movement of the movable seat (44).

2. The novel balanced hinge for an oven according to claim 1, characterized in that, The outer diameter of the inner sleeve (43) is the same as the inner diameter of the outer sleeve (42).

3. The novel balanced hinge for an oven according to claim 1, characterized in that, The spring component (45) includes a first spring (451) sleeved inside the inner sleeve (43), the bottom end of the first spring (451) abutting against the movable seat (44), and the top end of the first spring (451) abutting against the top wall of the inner sleeve (43).

4. The novel balanced hinge for an oven according to claim 3, characterized in that, The spring component (45) also includes a second spring (452) that is concentrically arranged with the first spring (451). The bottom end of the second spring (452) abuts against the movable seat (44). The top end of the second spring (452) is fixedly connected to a guide sleeve (453), which is fixedly connected to the inner top wall of the inner sleeve (43).

5. A novel balanced hinge for an oven according to claim 4, characterized in that, The diameter of the first spring (451) is larger than the diameter of the second spring (452), and the two springs are of the same length.

6. A novel balanced hinge for an oven according to claim 4, characterized in that, The guide (48) includes a fixing plate (481) fixedly connected to the inner side of the outer sleeve (42). A positioning plate (482) is fixedly connected to the top of the fixing plate (481). A connecting screw (483) penetrating the outer sleeve (42) and the inner sleeve (43) is inserted into the inner side of the positioning plate (482). A threaded cap (484) is provided on the top of the positioning plate (482) and threadedly connected to the threaded section of the connecting screw (483).

7. A novel balanced hinge for an oven according to claim 6, characterized in that, The top end of the connecting screw (483) has a smooth structure, and the top end of the connecting screw (483) is slidably connected to the guide sleeve (453).

8. A novel balanced hinge for an oven according to claim 6, characterized in that, The locking element (5) includes a pin (51) inserted into the inner side of the outer sleeve (42) and the inner sleeve (43), and a hanging rope (52) is attached to one end of the pin (51).

9. A novel balanced hinge for an oven according to claim 8, characterized in that, One end of the pin (51) is provided with a mating groove (53), which is slidably engaged with the connecting screw (483).

10. A novel balanced hinge for an oven according to claim 8, characterized in that, The inner sleeve (43) has a first slot (46) on its outer side, and the outer sleeve (42) has a second slot (47) on its outer side corresponding to the first slot (46). The pin (51) slides in cooperation with the first slot (46) and the second slot (47).

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