A timing door handle structure for an oven

Abstract

The present invention discloses a timing door handle structure for an oven, which includes a switch handle, a reset energy storage device and a timing device arranged inside the switch handle. The reset energy storage device is arranged at one end inside the switch handle and is linked with the switch handle. The structure further includes a limiting mechanism for limiting the switch handle when it reaches the end of the first preset direction. The timing device is arranged inside the switch handle. When the switch handle is turned in the first direction, the timing time is set. When the switch handle is turned in the second direction, the time is accumulated, and the limiting mechanism releases the limit on the switch handle at the end of the stroke. When the timing door handle structure for the oven of the present invention is in use, the reset energy storage device can be charged while the switch handle is turned, and the force stored in the reset energy storage device is limited and maintained by the limiting mechanism. When the switch handle is closed, the lock rods on both sides are extended through the rocker arm to lock the oven door, and the baking time is reminded and timed by the timing device.

Description

Technical Field

[0001] The present invention relates to the technical field of oven handles, and specifically refers to a timing door handle structure for an oven. Background Art

[0002] Currently, ovens have gradually entered people's lives and become a common tool for making and cooking food. The oven door handle in the prior art is similar to an oven door handle disclosed in Patent Application No. CN201810769748.6. By a rotating shaft arranged on a fixed seat, a grip connected to one end of the rotating shaft, a buckle connected to the other end of the rotating shaft, and elastic bumps arranged on the fixed seat, and grooves corresponding to the bumps are arranged on the circular rotating body, a certain pre-pressure locking force can be generated between the bumps and the grooves when the grip is rotated, and the opening and closing positions of the grip can be better positioned. In addition, a heat insulation ring is arranged between the fixed seat and the oven door to prevent heat from spreading to the grip. In addition, the grip is coated with matte baking paint to enhance the feel of the grip.

[0003] The function of this kind of handle is single. As is well known, it takes a certain amount of time to bake things in an oven, and the control of time during cooking is crucial. Especially for novice users who use the oven for the first time, there are often situations where the time is not controlled well and the baked delicacies fail.

[0004] However, the oven structure in the prior art is usually like the structure disclosed in the above-mentioned patent technology. It can only be used to open and close the oven door and does not have a countdown function for baking delicacies. People need to record the clock time or use other auxiliary timers for timing, and such operations are relatively cumbersome and inconvenient.

[0005] In view of the above, it is necessary to propose a timing door handle structure for an oven to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to solve the above technical problems and provide a timing door handle structure for an oven.

[0007] To achieve the above purpose, the present invention adopts the following technical solution: A timing door handle structure for an oven, including a switch handle, a reset energy storage device and a timing device are arranged inside the switch handle;

[0008] The reset energy storage device is arranged at one end inside the switch handle. The reset energy storage device is linked with the switch handle. The reset energy storage device completes energy storage when the switch handle rotates in a first preset direction. The reset energy storage device rotates in a second preset direction to drive the switch handle to reset. The first preset direction and the second preset direction are two opposite directions. It also includes a limiting mechanism for limiting the switch handle when it reaches the end of the first preset direction;

[0009] The timing device is arranged inside the switch handle. The timing device is turned in the first direction to set the timing time. The timing device is turned in the second direction to complete the time accumulation and release the limit of the switch handle by the limit mechanism at the end of the stroke.

[0010] Further, the reset and energy storage device includes a first installation cavity formed inside one end of the rotation axis of the switch handle, and also includes a first elastic member arranged in the first installation cavity. A fixed shaft 1 passes through the center of the first installation cavity and is fixedly formed inside the oven door. One end of the first elastic member is connected to the fixed shaft, and the other end is fixedly connected to the inner wall of the first installation cavity. A card slot is concavely provided on the side wall of the first installation cavity.

[0011] Further, the limit mechanism includes a claw, a tension spring, a fixed shaft 2, and a baffle. The claw is L-shaped. The middle part on one side of the long arm of the claw is rotationally connected to the fixed shaft 2. Both the fixed shaft 2 and the baffle are fixedly formed inside the oven door. The clamping block at the first end of the claw is matched with the card slot, and a tension spring is arranged between the second end and the baffle. When the switch handle rotates in the first preset direction, the reset and energy storage device rotates synchronously to store energy. When reaching the end of the stroke, the claw is stuck into the card slot for limiting, so that the reset and energy storage device maintains the stored energy.

[0012] Further, the timing device includes a second installation cavity, a second elastic member, and a trigger member. The second installation cavity is formed inside the same end of the switch handle where the first installation cavity is provided. An installation shaft is fixedly arranged at the center of the axis of the second installation cavity; the trigger member is rotationally connected through the installation shaft and arranged inside the second installation cavity. The trigger member is in a cylindrical structure, and a convex key protrudes from its outer wall to the outside. Its interior is hollow for placing the second elastic member. One end of the second elastic member is connected to the installation shaft, and the other end is connected to the inner wall of the trigger member.

[0013] Further, an opening is provided on the side wall of the second installation cavity. The first end of the claw is also provided with a protruding edge, which can be stuck into the opening. The protruding length of the protruding edge is greater than the protruding length of the clamping block, and the clamping block is matched with the convex key.

[0014] Further, the timing device further includes a timing mechanism. The timing mechanism is connected and arranged outside the trigger member, and the trigger member is linked with the timing mechanism. The timing mechanism includes a deceleration mechanism and a timing dial. The deceleration mechanism is arranged inside the timing mechanism, and the timing dial is formed on the outer surface of the switch handle. Time scales are provided around the timing dial, and a hand-twisting handle for twisting the timing mechanism is also provided on the timing dial.

[0015] Further, both the first elastic member and the second elastic member are hairsprings.

[0016] Further, a C-shaped groove is provided at the bottom of the second installation cavity, and a retaining rod matching with the bottom surface of the trigger member is provided. The retaining rod is inserted into the C-shaped groove and matches with it.

[0017] Further, rocker arms are respectively provided on both sides of one end of the rotation axis of the switch handle, and the two rocker arms respectively drive the locking rod to telescopically move.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: when the timing door handle structure for an oven of the present invention is in use, turning the switch handle can store energy for the reset energy storage device, and the limiting mechanism is used to limit and maintain the energy stored in the reset energy storage device. When the switch handle is closed, the locking rods on both sides are extended through the rocker arms to lock the oven door to prevent others from opening it midway; and through the integrated timing device, after closing the switch handle, rotating the hand-twisting handle can drive the trigger member to rotate and realize the countdown function through the speed reduction mechanism. The second elastic member is used as the power source of the speed reduction mechanism. When the timing reaches the end point, the bump drives the top to open the convex edge, releasing the limit of the latch on the card slot, so that the handle automatically resets and the oven door is unlocked when the time is up. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Isometric view of a timing door handle structure for an oven according to the present invention;

[0020] Figure 2 Exploded view one of a timing door handle structure for an oven according to the present invention;

[0021] Figure 3 Exploded view two of a timing door handle structure for an oven according to the present invention;

[0022] Figure 4 Front view of the present invention when the reset energy storage device is fully charged and locked;

[0023] Figure 5 Relationship diagram one between the trigger member and the claw in the timing device of the present invention;

[0024] Figure 6 Relationship diagram two between the trigger member and the claw in the timing device of the present invention;

[0025] Figure 7 Structure diagram of the C-shaped groove and the retaining rod of the present invention;

[0026] In the figure: 1. Switch handle; 2. Reset energy storage device; 3. Timing device; 4. Limit mechanism; 5. First installation cavity; 6. First elastic member; 7. First fixed shaft; 8. Card slot; 9. Claw; 10. Tension spring; 11. Second fixed shaft; 12. Baffle; 13. Block; 14. Second installation cavity; 15. Second elastic member; 16. Trigger member; 17. Installation shaft; 18. Convex key; 19. Opening; 20. Raised edge; 21. Deceleration mechanism; 22. Timing dial; 23. Hand-twisting handle; 24. C-shaped groove; 25. Stop rod; 26. Rocker arm; 27. Lock rod. Detailed implementation mode

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0028] A timing door handle structure for an oven, as Figure 1 、 Figure 2 shown, includes a switch handle 1, a reset energy storage device 2 and a timing device 3 are arranged inside the switch handle 1;

[0029] The reset energy storage device 2 is arranged at one end inside the switch handle 1. The reset energy storage device 2 is linked with the switch handle 1. The reset energy storage device 2 completes energy storage as the switch handle 1 rotates in the first preset direction. The reset energy storage device 2 rotates in the second preset direction to drive the switch handle 1 to reset. The first preset direction and the second preset direction are two opposite directions. It also includes a limit mechanism 4 for limiting the switch handle 1 when it reaches the end of the first preset direction;

[0030] The reset energy storage device 2 includes a first installation cavity 5, which is formed inside one end of the rotation axis of the switch handle 1. The first installation cavity 5 is fixedly connected to the switch handle 1 and can be driven to rotate simultaneously when the switch handle 1 rotates. The outer wall of the first installation cavity 5 is cylindrical. A first elastic member 6 is installed inside the first installation cavity 5. A first fixing shaft 7 passes through the center of the first installation cavity 5 and is fixedly formed inside the oven door. The switch handle 1 is sleeved on the first fixing shaft 7 through the first installation cavity 5. In actual use, when the switch handle 1 is rotated, it rotates around the first fixing shaft 7. Since one end of the first elastic member 6 is connected to the fixing shaft and the other end is fixedly connected to the inner wall of the first installation cavity 5, energy can be stored through the first elastic member 6 when the switch handle 1 rotates. The first elastic member 6 can be a spring. A card slot 8 is concavely provided on the side wall of the first installation cavity 5. When the switch handle 1 rotates to the end of the stroke in the first preset direction, the limiting mechanism 4 can be inserted into the card slot 8 to limit the switch handle 1. It can be understood that the locking structure of the oven door can be set by using the rotation of the handle. Specifically, rocker arms 26 can be respectively provided on both outer sides of the first installation cavity 5 of the switch handle 1, and the two rocker arms 26 respectively drive the locking rods 27 to move telescopically. During use, when the switch handle 1 rotates, the two locking rods 27 on both sides are driven to extend out of the oven door through the rocker arms 26, and the ends of the locking rods 27 are inserted into the door frame, thereby locking the oven door to prevent it from being opened by others during the baking process.

[0031] As Figure 2 , Figure 3 shown, the limiting mechanism 4 includes a claw 9, a tension spring 10, a second fixing shaft 11, and a baffle 12. The claw 9 is L-shaped. The middle part of the long arm side of the claw 9 is rotatably connected to the second fixing shaft 11. The second fixing shaft 11 and the baffle 12 are both fixedly formed inside the oven door, so the claw 9 can rotate at a certain angle around the second fixing shaft 11. The clamping block 13 at the first end of the claw 9 cooperates with the card slot 8, and a tension spring 10 is arranged between the second end and the baffle 12. One end of the tension spring 10 pulls the claw 9, and the clamping block 13 at the other end can be close to the outer wall of the first installation cavity 5. Since the outer wall of the first installation cavity 5 is cylindrical, the clamping block 13 can slide along the wall when the first installation cavity 5 rotates. As Figure 4 shown, during rotation, when the card slot 8 rotates to a position corresponding to the clamping block 13, under the pulling of the tension spring 10, the clamping block 13 can be inserted into the card slot 8. At this time, the reset energy storage device 2 can be positioned. When the switch handle 1 rotates in the first preset direction, the first elastic member 6 is also energized at the same time, that is, the reset energy storage device 2 is energized synchronously. When the end of the stroke is reached, the claw 9 is inserted into the card slot 8 for limiting, so that the reset energy storage device 2 maintains the stored energy. On the contrary, when the clamping block 13 is disengaged from the card slot 8, the switch handle 1 is driven to rotate back to its original position under the elastic action of the first elastic member 6.

[0032] Furthermore, the aforementioned removal of the card block 13 from the card slot 8 can be controlled by the timing device 3, such as Figure 2 , Figure 5 As shown, the timing device 3 is arranged in the switch handle 1. The timing device 3 is turned in the first direction to set the timing time. The timing device 3 is rotated in the second direction to complete the time accumulation and release the limit of the switch handle 1 by the limit mechanism 4 at the end of the stroke. In addition, the timing device 3 can be electrically connected to the circuit of the oven, and an alarm circuit triggered by the timing device 3 is set, that is, when the timing ends, a reminder alarm bell can be sounded, thereby conveniently reminding the user that baking is completed.

[0033] Specifically, the timing device 3 includes a second mounting cavity 14, a second elastic member 15, and a trigger member 16. As shown in the figure, the second mounting cavity 14 is formed inside the same end of the switch handle 1 as the first mounting cavity 5. The second mounting cavity 14 can be stacked on the first mounting cavity 5 as shown in the structure in the figure, and a mounting shaft 17 is fixedly provided at the axis of the second mounting cavity 14; the trigger member 16 is rotatably connected and arranged inside the second mounting cavity 14 through the mounting shaft 17. The trigger member 16 has a cylindrical structure, so that the trigger member 16 can rotate in the second mounting cavity 14 with the mounting shaft 17 as the axis. It can be understood that this rotation can limit the rotation angle range, thereby controlling the time range of the timing device 3 when it is turned to time. The specific angle range is controlled as follows: Figure 7 As shown, a C-shaped groove 24 is provided at the bottom of the second mounting cavity 14, and a baffle 25 matching therewith is provided on the bottom surface of the trigger member 16. The baffle 25 is inserted into the C-shaped groove 24 to match therewith. When the bottom surface of the trigger member 16 is installed against the bottom surface of the second mounting cavity 14, the mounting shaft 17 passes through the center of the trigger member 16, so that the trigger member 16 can rotate freely on the mounting shaft 17. At this time, since the baffle 25 is inserted into the C-shaped groove 24, the baffle 25 can move freely within the range of the C-shaped groove 24, that is, the rotation angle range of the trigger member 16 is limited by the C-shaped groove 24; and a convex key 18 is provided on the outer wall of the trigger member 16 protruding outward, and the interior thereof is hollow for placing the second elastic member 15. The second elastic member 15 can adopt a spring, one end of the second elastic member 15 is connected to the mounting shaft 17, and the other end is connected to the inner wall of the trigger member 16; thereby, the second elastic member 15 can drive the trigger member 16 to rotate to the end of the stroke.

[0034] In order to enable the trigger member 16 to lift the block 13 when it rotates to the end of the stroke, that is, to unlock and reset the power storage device 2 when the countdown of the timing device 3 is completed; it is necessary to further improve the claw 9, such as Figure 6As shown, a raised edge 20 is further provided at the first end of the jaw 9. The raised edge 20 is located outside the latch 13, and the protruding length of the raised edge 20 is greater than the protruding length of the latch 13. Moreover, an opening 19 is provided on the outer wall of the second mounting cavity 14, and the position of the opening 19 corresponds to the position of the card slot 8. The left side of the opening 19 is flush with the side wall of the card slot 8, and the right side of the opening 19 is an extended opening 19, so that when the trigger 16 reaches the end of the stroke at the end of the timing, the right side of the convex key 18 can be connected to the extended opening 19 on the right side to form a smooth transition. In actual use, when the switch handle 1 is rotated in the first preset direction, the latch 13 is snapped into the card slot 8, and at the same time, the raised edge 20 is also inserted into the opening 19 of the second mounting cavity 14. During the countdown, the trigger 16 rotates slowly, as Figure 5 shown, at this time, the convex key 18 does not reach the position of the raised edge 20 and will not lift it; when the countdown is completed, Figure 6 shown, the raised edge 20 first lifts the raised edge 20. At the same time of lifting, the latch 13 is also pushed out of the card slot 8. The part of the raised edge 20 higher than the latch 13 is used to extend into the opening 19 to cooperate with the convex key 18 to form a trigger unlocking. The smooth transition formed by the convex key 18 and the extended opening 19 on the right side of the opening 19 is used to maintain the lifted state of the raised edge 20. When the latch 13 is disengaged from the card slot 8, the end of the latch 13 is also stuck on the cylindrical outer wall of the first mounting cavity 5. At this time, the switch handle 1 can be automatically reset under the action of the first elastic member 6 without restriction.

[0035] As Figure 2 shown, the timing device 3 further includes a timing mechanism. The timing mechanism is connected and arranged outside the trigger 16. The trigger 16 is linked with the timing mechanism. The timing mechanism includes a speed reduction mechanism 21 and a timing dial 22. The speed reduction mechanism 21 is arranged inside the timing mechanism. When the timing device 3 is rotated, the speed reduction mechanism 21 can achieve timing through a speed reduction gear set. The structure of the speed reduction mechanism 21 can refer to the timer structure of an existing electric fan and will not be elaborated here. The timing dial 22 is formed on the outer surface of the switch handle 1. Time scales are provided around the timing dial 22, and a hand-twisting handle 23 for twisting the timing mechanism is also provided on the timing dial 22. When in use, the food is placed in the oven and heated, then the hand-twisting handle 23 is twisted, the required baking time is selected according to the time scale, then the oven door is closed, and the switch handle 1 is rotated to form a lock on the oven door. When the speed reduction mechanism 21 finishes operating, the trigger 16 is rotated to the end to trigger the lifting of the jaw 9 through the convex key 18, so that the switch handle 1 is unlocked and reset.

[0036] As described above, it is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A timing door handle structure for an oven, comprising a switch handle (1). Characterized in that, a reset energy storage device (2) and a timing device (3) are provided inside the switch handle (1); the reset energy storage device (2) is arranged at one end inside the switch handle (1), the reset energy storage device (2) is linked with the switch handle (1), the reset energy storage device (2) completes energy storage as the switch handle (1) rotates in a first preset direction, and the reset energy storage device (2) rotates in a second preset direction to drive the switch handle (1) to reset. The first preset direction and the second preset direction are two opposite directions. A limiting mechanism (4) for limiting the switch handle (1) at the end of the first preset direction is further included; the timing device (3) is arranged inside the switch handle (1). The timing device (3) is rotated in a first direction to set the timing time. The timing device (3) rotates in a second direction to complete time accumulation and releases the limit of the limiting mechanism (4) on the switch handle (1) at the end of the stroke; the reset energy storage device (2) includes a first installation cavity (5). The first installation cavity (5) is formed inside one end of the switch handle (1) where the rotation axis is located. A first elastic member (6) arranged in the first installation cavity (5) is further included. A fixed shaft one (7) passes through the center of the first installation cavity (5). The fixed shaft one (7) is fixedly formed inside the oven door. One end of the first elastic member (6) is connected to the fixed shaft, and the other end is fixedly connected to the inner wall of the first installation cavity (5). A clamping groove (8) is concavely provided on the side wall of the first installation cavity (5); the limiting mechanism (4) includes a claw (9), a tension spring (10), a fixed shaft two (11), and a baffle (12). The claw (9) is L-shaped. The middle part on the long arm side of the claw (9) is rotatably connected to the fixed shaft two (11). The fixed shaft two (11) and the baffle (12) are both fixedly formed inside the oven door. The clamping block (13) at the first end of the claw (9) is matched with the clamping groove (8). A tension spring (10) is arranged between the second end and the baffle (12). When the switch handle (1) rotates in the first preset direction, the reset energy storage device (2) rotates synchronously to store energy. When the end of the stroke is reached, the claw (9) is clamped into the clamping groove (8) for limiting, so that the reset energy storage device (2) maintains energy storage; the timing device (3) includes a second installation cavity (14), a second elastic member (15), and a trigger member (16). The second installation cavity (14) is formed inside the same end of the switch handle (1) where the first installation cavity (5) is provided. An installation shaft (17) is fixedly arranged at the center of the second installation cavity (14); the trigger member (16) is rotatably connected to the inside of the second installation cavity (14) through the installation shaft (17). The trigger member (16) has a cylindrical structure. A convex key (18) protrudes from its outer wall to the outside. Its interior is hollow for placing the second elastic member (15). One end of the second elastic member (15) is connected to the installation shaft (17), and the other end is connected to the inner wall of the trigger member (16).

2. A timing door handle structure for an oven according to claim 1, Characterized in that, The side wall of the second installation cavity (14) is provided with an opening (19). A raised edge (20) is further provided at the first end of the claw (9). The raised edge (20) can be snapped into the opening (19). The protruding length of the raised edge (20) is greater than the protruding length of the locking block (13). The locking block (13) is matched with the convex key (18).

3. A timing door handle structure for an oven according to claim 2, characterized in that, the timing device (3) further includes a timing mechanism. The timing mechanism is connected and arranged outside the trigger member (16). The trigger member (16) is linked with the timing mechanism. The timing mechanism includes a speed reduction mechanism (21) and a timing dial (22). The speed reduction mechanism (21) is arranged inside the timing mechanism. The timing dial (22) is formed on the outer surface of the switch handle (1). Time scales are provided around the timing dial (22). A hand-twisting handle (23) for twisting the timing mechanism is further provided on the timing dial (22).

4. A timing door handle structure for an oven according to claim 3, characterized in that, the first elastic member (6) and the second elastic member (15) are both clockwork springs.

5. A timing door handle structure for an oven according to claim 4, characterized in that, a C-shaped groove (24) is provided at the inner bottom of the second installation cavity (14). A retaining rod (25) matched with the bottom surface of the trigger member (16) is provided. The retaining rod (25) is inserted into the C-shaped groove (24) and matched with it.

6. A timing door handle structure for an oven according to any one of claims 1-5, characterized in that, rocking arms (26) are respectively provided on both sides of one end of the rotation axis of the switch handle (1). The two rocking arms (26) respectively drive the telescopic movement of the locking rod (27).

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