Electric hinge and steaming oven comprising same

Abstract

The utility model provides an electric hinge and a steaming oven comprising the same, the electric hinge comprises a transmission assembly, the transmission assembly comprises a first connecting rod and a second connecting rod, the transmission assembly further comprises a connecting part, one end of the connecting part is in sliding connection with the first connecting rod, and the other end of the connecting part is hinged with the second connecting rod; or one end of the connecting part is in sliding connection with the second connecting rod, and the other end of the connecting part is hinged to the first connecting rod; the buffering part is arranged on the connecting part and connected with the first connecting rod or the second connecting rod from the connecting part, and when the electric hinge is powered off and is manually locked, the second connecting rod abuts against the first connecting rod through the buffering part. According to the electric hinge, the connecting part is arranged, so that an unlocking space for manually unlocking the electric hinge is reserved, self-locking of the electric hinge is avoided, and meanwhile, the buffering part is arranged, so that the situations of pause, collision and abnormal sound occurring in the door closing process of a door body connected with the electric hinge are reduced.

Description

Technical Field

[0001] This utility model specifically relates to an electric hinge and a steam oven containing the same. Background Technology

[0002] To address the self-locking issue in the event of a power outage, current electric hinges typically employ a flexible connection structure, allowing the door connected to the electric hinge to be manually opened and closed in the event of a power outage.

[0003] However, in actual use, it was found that when the electric hinge is locked, the door connected to the hinge lies flat, resulting in a large weight and load. At this point, the tension spring force of the electric hinge is roughly balanced or slightly less than the load. But as the door is gradually pulled up, the load decreases, and the tension spring force becomes significantly greater. This may cause some parts of the transmission mechanism in the electric hinge to move faster, while others move slower. In other words, the flexible connection structure provides a large manual operation space, leading to collisions in the transmission mechanism, resulting in jerking, collisions, and abnormal noises during door closing. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defect in the prior art where the reserved space for manual operation causes the transmission structure to collide and produce abnormal noise, and to provide an electric hinge and a steam oven containing the same.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] An electric hinge includes a transmission assembly comprising a first link and a second link, and the electric hinge further includes:

[0007] A connecting part, one end of which is slidably connected to the first connecting rod, and the other end of which is hinged to the second connecting rod;

[0008] Alternatively, one end of the connecting part is slidably connected to the second connecting rod, and the other end of the connecting part is hinged to the first connecting rod;

[0009] A buffer portion is disposed on the connecting portion and connected to the first link or the second link from the connecting portion. When the electric hinge is de-energized and manually locked, the second link abuts against the first link through the buffer portion.

[0010] In this solution, a connecting part is provided. One end of the connecting part is fixedly connected to the first or second link, while the other end is slidably connected to the first or second link. The sliding space of the connecting part is the unlocking space when the electric hinge is manually unlocked. Compared with a rigid connection structure, this can prevent the electric hinge from self-locking. At the same time, a buffer part is also provided on the connecting part. Compared with a flexible connection structure, this can overcome the problem that the second link moves too fast and directly abuts against the first link when manually locked due to the reset spring force. The buffer part absorbs the kinetic energy of the second link, so that the second link and the first link will not directly abut against each other, thereby reducing the occurrence of jerking, collision and abnormal noise of the door body connected to the electric hinge during closing.

[0011] Preferably, the side of the connecting part is provided with a connecting groove, and the connecting part is slidably connected to the first connecting rod or the second connecting rod through the connecting groove.

[0012] In this solution, the above-mentioned arrangement enables one end of the connecting part to be slidably connected to the first or second connecting rod.

[0013] Preferably, the connecting part has a receiving groove, the buffer part is a spring, the spring is embedded in the receiving groove and the other end of the spring is connected to the corresponding first connecting rod or second connecting rod.

[0014] In this solution, the above settings are used to buffer the kinetic energy between the second link and the first link, avoiding the possible jerking and collision that may occur when the two directly contact each other, thereby preventing abnormal noise.

[0015] Preferably, the transmission assembly further includes a tension spring connected to the first connecting rod.

[0016] In this solution, the above settings are used to reset the first link.

[0017] Preferably, the transmission assembly further includes a housing, the second connecting rod is located inside the housing, the housing has a sliding groove, and both the first connecting rod and the second connecting rod are provided with pins that extend into the sliding groove.

[0018] In this scheme, the above settings are used to guide the movement of the first link and the second link.

[0019] Preferably, the slide groove is disposed on opposite sides of the housing, the pin is disposed on opposite sides of the first connecting rod and the second connecting rod, both ends of the pin extend out of the slide groove, and the size of the end of the pin extending out of the slide groove is larger than the size of the slide groove.

[0020] In this solution, the above settings are used to guide the pin while preventing it from detaching from the groove.

[0021] Preferably, the transmission assembly further includes a geared motor, the output shaft of which is connected to the first connecting rod, and the geared motor is disposed on the side of the housing and fixedly connected to the housing.

[0022] In this solution, the above settings are used to achieve an electrically driven electric hinge.

[0023] Preferably, the transmission assembly further includes a crank connected to one end of the first connecting rod, and the crank passes through the output shaft of the geared motor, through which the first connecting rod approaches or moves away from the second connecting rod.

[0024] In this scheme, the above settings are used to drive the first link to move.

[0025] Preferably, the electric hinge further includes a latch, which is hinged to a first end of the housing, and the end of the second link opposite to the first link is used to abut the latch.

[0026] In this solution, the above-mentioned settings are used to unlock or lock the door connected to the electric hinge when the latch moves.

[0027] A steam oven includes an electric hinge as described above and a door connected to the electric hinge.

[0028] In this solution, the steam oven includes the aforementioned electric hinge and a door connected to the electric hinge, so that the door can be manually opened and closed to take out and put in food in the event of a power outage, thereby improving ease of use. At the same time, it can prevent jamming, collision and abnormal noise when closing the door.

[0029] The positive and progressive effects of this utility model are as follows: By setting a connecting part, one end of the connecting part is fixedly connected to the first or second link, and the other end of the connecting part is slidably connected to the first or second link. The sliding space of the connecting part is the unlocking space when manually unlocking the electric hinge. Compared with a rigid connection structure, this can avoid the electric hinge from self-locking. At the same time, a buffer part is also set on the connecting part. Compared with a flexible connection structure, this can overcome the problem that the second link moves too fast and directly abuts against the first link when manually locking due to the reset spring force. The buffer part absorbs the kinetic energy of the second link, so that the second link and the first link will not directly abut against each other, thereby reducing the occurrence of jerking, collision and abnormal noise of the door body connected to the electric hinge during closing. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the electric hinge in a preferred embodiment of the present invention when opening a door.

[0031] Figure 2 This diagram shows the positional relationship between the first link and the second link when the door is opened, according to a preferred embodiment of the present invention.

[0032] Figure 3 This is a schematic diagram of the structure of the electric hinge in a preferred embodiment of the present invention when closing a door.

[0033] Figure 4 This diagram shows the positional relationship between the first link and the second link when the door is closed, according to a preferred embodiment of the present invention.

[0034] Figure 5 This diagram illustrates the positional relationship between the first and second connecting rods during the closing process, according to a preferred embodiment of the present invention.

[0035] Explanation of reference numerals in the attached figures:

[0036] Connecting part 1

[0037] Connection slot 101

[0038] Receiving tank 102

[0039] Locking tongue 2

[0040] Buffer section 3

[0041] Transmission assembly 10

[0042] First link 11

[0043] Second link 12

[0044] Casing 13

[0045] Slide 131

[0046] Pin 14

[0047] Gear motor 15

[0048] Crank 16

[0049] Tension spring 17 Detailed Implementation

[0050] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0051] This embodiment provides an electric hinge, the specific structure of which is as follows: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the electric hinge includes a transmission assembly 10, which includes a first link 11 and a second link 12. The electric hinge also includes:

[0052] Connecting part 1, one end of connecting part 1 is slidably connected to the first connecting rod 11, and the other end of connecting part 1 is hinged to the second connecting rod 12;

[0053] The buffer part 3 is disposed on the connecting part 1 and connected to the first connecting rod 11 from the connecting part 1. When the electric hinge is de-energized and manually locked, the second connecting rod 12 abuts against the first connecting rod 11 through the buffer part 3.

[0054] Specifically, the transmission assembly 10 includes a first link 11 and a second link 12. The first link 11 drives the second link 12 to move along the transmission direction, thereby enabling the structure connected to the second link 12, such as a door, to open or close. This is prior art and will not be described in detail here. The connecting part 1 is hinged to the second link 12 so that when the first link 11 applies a pushing force to the second link 12, the pushing force can be effectively transmitted through the connecting part 1. The connecting part 1 is slidably connected to the first link 11 so that when the first link 11 applies a pushing force to the second link 12, the first link 11 can slide relative to the second link 12 along the transmission direction. A buffer part 3 is provided on the connecting part 1. The buffer part 3 is connected from the connecting part 1 to the first link 11 so as to prevent the first link 11 and the second link 12 from directly abutting when the first link 11 slides. It is understandable that the first link 11 is slidable relative to the connecting part 1, and after sliding a certain distance, it abuts against the connecting part 1 through the buffer part 3. The slidable space on the connecting part 1 is the unlocking space when the electric hinge is manually unlocked. That is, when the electric hinge is de-energized, the original rigid transmission structure is self-locked in the de-energized state, making it impossible to manually open or close the electric hinge. Instead, one of the transmission structures is replaced by the connecting part 1 and the buffer part 3 to reserve space for sliding along the transmission direction, so that the user can manually push the door to drive the electric hinge to unlock or lock in the de-energized state.

[0055] Meanwhile, in this embodiment, a buffer part 3 is provided on the connecting part 1. Compared with a flexible connection structure, such as the first link 11 and the second link 12 connected by a rope, it can overcome the problem that when manually locked, the electric hinge reset spring force causes the second link 12 to move too fast and directly abut against the first link 11. When the second link 12 moves too fast, the buffer part 3 on the connecting part 1 will only abut against the first link 11. The buffer part 3 absorbs the kinetic energy of the second link 12, so that the second link 12 and the first link 11 will not directly abut against each other, thereby reducing the occurrence of jerking, collision and abnormal noise of the door body connected to the electric hinge during the closing process.

[0056] In other embodiments, one end of the connecting part 1 is slidably connected to the second link 12, and the other end of the connecting part 1 is hinged to the first link 11. A buffer part 3 is disposed on the connecting part 1 and connected to the second link 12. When the electric hinge is de-energized and manually locked, the second link 12 abuts against the first link 11 through the buffer part 3. By slidably connecting the connecting part 1 to the second link 12, it also provides unlocking space when manually unlocking the electric hinge, and the buffer part 3 prevents the first link 11 and the second link 12 from directly abutting each other; further details are omitted here.

[0057] In this embodiment, a connecting groove 101 is provided on the side of the connecting part 1, and the connecting part 1 is slidably connected to the first connecting rod 11 or the second connecting rod 12 through the connecting groove 101.

[0058] Specifically, the connecting part 1 is the third link. Compared with other flexible structures, the link itself can withstand the force of the second link 12 or the first link 11 without deformation, thereby reducing the situation of jerking and collision. In addition, the third link will not be compressed, so as to reduce the situation of abnormal noise.

[0059] Connecting grooves 101 are provided on both sides of the connecting part 1, extending along the transmission direction. When the connecting part 1 is slidably connected to the first connecting rod 11, the first connecting rod 11 extends into the connecting groove 101 through a screw or a protrusion to achieve the slidable connection between the connecting part 1 and the first connecting rod 11. Similarly, when the connecting part 1 is slidably connected to the second connecting rod 12, the second connecting rod 12 extends into the connecting groove 101 through a screw or a protrusion to achieve the slidable connection between the connecting part 1 and the second connecting rod 12.

[0060] In this embodiment, the connecting part 1 has a receiving groove 102, and the buffer part 3 is a spring. The spring is embedded in the receiving groove 102 and the other end of the spring is connected to the corresponding first connecting rod 11 or second connecting rod 12.

[0061] Specifically, the connecting part 1 is a "Y"-shaped rod, and the opening of the "Y"-shaped rod forms a receiving groove 102, which is located in the middle area of ​​the connecting part 1. A spring is provided at the bottom of the receiving groove 102. When the connecting part 1 is slidably connected to the first connecting rod 11, the first connecting rod 11 extends into the receiving groove 102 and connects with the spring. When the electric hinge is working normally, the first connecting rod 11 pushes the connecting part 1 and the buffer part 3 to drive the second connecting rod 12, avoiding direct contact between the first connecting rod 11 and the second connecting rod 12, thereby unlocking the door connected to the second connecting rod 12. Conversely, the first connecting rod 11 pulls the connecting part 1 and the buffer part 3 to drive the second connecting rod 12, thereby locking the door connected to the second connecting rod 12. Unlocking means the door is open, and locking means the door is closed.

[0062] It should be noted that when the door is unlocked and the electric hinge is de-energized, if the user wants to close the door, they can manually push the door, which will cause the second link 12 to move toward the first link 11. Under the action of the electric hinge applying the reset spring force to the first link 11, the buffer part 3 is set between the first link 11 and the second link 12 to prevent the second link 12 from moving too fast when it is pulled by the first link 11. This buffers the kinetic energy of the second link 12 and avoids the possible jerking and collision that may occur when the second link 12 and the first link 11 directly abut.

[0063] In this embodiment, the transmission assembly 10 further includes a tension spring 17, which is connected to the first connecting rod 11.

[0064] Specifically, the tension spring 17 is a structure found in the prior art. The tension spring 17 is located at the end of the first connecting rod 11 furthest from the second connecting rod 12. One end of the tension spring 17 is fixed, and the other end is used to connect with a protrusion or pin extending into the connecting groove 101 on the first connecting rod 11, so as to apply a restoring elastic force to the first connecting rod 11. Compared to resetting the first connecting rod 11 by driving it separately with a drive motor or servo motor, resetting via the tension spring 17 is less costly, and reset can also be achieved via the tension spring 17 in the event of a power outage.

[0065] In other embodiments, additional hooks can be provided to hook the tension spring 17 to the first connecting rod 11 to avoid the tension spring 17 being too long and the reset force being too large. This is prior art and will not be described in detail here.

[0066] In this embodiment, the transmission assembly 10 further includes a housing 13, the second connecting rod 12 is located inside the housing 13, the housing 13 is provided with a sliding groove 131, and the first connecting rod 11 and the second connecting rod 12 are both provided with pins 14, which extend into the sliding groove 131.

[0067] Specifically, the housing 13 has a groove 131 along its length. A pin 14 is provided on the second connecting rod 12, extending into the groove 131 so that the second connecting rod 12 slides within the housing 13. The connecting part 1 and the second connecting rod 12 are hinged by the pin 14. Additionally, a pin 14 is also provided on the first connecting rod 11, extending into the groove 131 and the connecting groove 101, achieving a sliding connection with the connecting part 1. The first connecting rod 11 is used to connect to an electric drive structure, such as a drive motor in the prior art, to achieve electric drive of the electric hinge by moving it closer to or further away from the second connecting rod 12. The groove 131 and the pin 14 cooperate to guide the movement of the first connecting rod 11 and the second connecting rod 12, thereby enabling repeated use.

[0068] It should be noted that when the electric hinge opens the door, the connecting part 1 and the buffer part 3 abut against the second connecting part 12 through the first connecting rod 11, so as to push the second connecting rod 12 to move along the slide groove 131, thereby driving the door body connected to the second connecting rod 12 to move, thus realizing electric door opening. In the open state, the first connecting rod 11 and the second connecting rod 12 are spaced apart rather than abutting each other, so that the second connecting rod 12 has space to move toward the first connecting rod 11 along the extension direction of the slide groove 131, that is, the operation space for manual locking is reserved.

[0069] When the electric hinge closes the door, the first link 11 drives the second link 12 to move in the opposite direction to the opening direction, the buffer part 3 is tightened, and when locked in place, the first link 11 and the second link 12 absorb the kinetic energy of the second link 12 through the buffer part 3, thereby giving the buffer part 3 room to be stretched, leaving room for manual unlocking.

[0070] In this embodiment, the slide groove 131 is disposed on opposite sides of the housing 13, and the pin 14 is disposed on opposite sides of the first connecting rod 11 and the second connecting rod 12. Both ends of the pin 14 extend out of the slide groove 131, and the size of the end of the pin 14 extending out of the slide groove 131 is larger than the size of the slide groove 131.

[0071] Specifically, two slide grooves 131 are provided and located on opposite sides of the housing 13. The second connecting rod 12 is located between the two slide grooves 131, and the pin 14 on the second connecting rod 12 passes through the second connecting rod 12 and extends out of the slide groove 131. Similarly, the first connecting rod 11 is located between the two slide grooves 131, and the pin 14 on the first connecting rod 11 passes through the first connecting rod 11 and extends out of the slide groove 131. By setting the end of the pin 14 extending out of the slide groove 131 to be larger than the size of the slide groove 131, the pin 14 is prevented from detaching from the slide groove 131. This ensures the reliability of reusable first connecting rod 11 and second connecting rod 12.

[0072] In this embodiment, the transmission assembly 10 further includes a geared motor 15, the output shaft of which is connected to the first connecting rod 11, and the geared motor 15 is disposed on the side of the housing 13 and fixedly connected to the housing 13.

[0073] Specifically, the geared motor 15 is a geared structure in the prior art. The geared motor 15 is used to drive the first link 11 to move. The pin 14 on the second link 12 is hinged to the second link 12. The pin 14 on the first link 11 is fixedly connected to the first link 11. When the geared motor 15 drives the first link 11 to move, the pin 14 on the first link 11 mainly bears the thrust from the first link 11. The pin 14 is hardly subjected to the component force that makes it rotate. Thus, the geared motor 15 electrically drives the second link 12 to reciprocate along the length direction of the slide groove 131 to unlock or lock the door connected to the second link 12.

[0074] In this embodiment, the transmission assembly 10 further includes a crank 16, which is connected to one end of the first connecting rod 11 and passes through the output shaft of the geared motor 15. The first connecting rod 11 moves closer to or further away from the second connecting rod 12 through the crank 16.

[0075] Specifically, the crank 16 is a crank structure in the prior art. A crank 16 is also provided between the first connecting rod 11 and the geared motor 15. The crank 16 is set at an angle to the first connecting rod 11 so that the rotational component of the geared motor 15 is converted into a thrust that pushes the first connecting rod 11 to move along the slide groove 131.

[0076] In this embodiment, the electric hinge also includes a locking tongue 2, which is hinged to the first end of the housing 13, and the end of the second link 12 facing away from the first link 11 is used to abut against the locking tongue 2.

[0077] Specifically, the latch 2 is a rod that is hinged to the first end of the housing 13. The latch 2 also has a fixing rod, that is, from the appearance, the latch 2 is an "L" shaped rod. One end of the second connecting rod 12 extends into the bend of the latch 2, and the bend is located at a different position from the hinge point between the latch 2 and the housing 13. The second connecting rod 12 is used to abut against the latch 2 to push the latch 2 to move. The door body is connected to the latch 2 so as to unlock or lock the door body connected to the electric hinge when the latch moves.

[0078] The working principle of electric hinges is as follows:

[0079] When the electric hinge unlocks the door, the geared motor 15 drives the crank 16 to move, causing the first connecting rod 11 to move toward the second connecting rod 12. The buffer part 3 is compressed, and the second connecting rod 12 is pushed by the first connecting rod 11 and the connecting part 1 to drive the latch 2 to unlock the door. When the electric hinge locks the door, the geared motor 15 drives the crank 16 to move, causing the first connecting rod 11 to move away from the second connecting rod 12 and pull the second connecting rod 12 through the connecting part 1 and the buffer part 3, locking the latch 2 to lock the door.

[0080] In this embodiment, the end of the second link 12 facing the latch 2 is hinged to the latch 2. Compared to abutting, hinged connection allows for faster and more reliable unlocking or locking response. Simultaneously, hinged connection can also effectively pull the latch to move.

[0081] This embodiment also provides a steam oven, which includes the aforementioned electric hinge and a door connected to the electric hinge, so that the door can be manually opened and closed in the event of a power outage to take out and put in food, thereby improving ease of use. At the same time, it can prevent jamming, collision and abnormal noise when closing the door.

[0082] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. An electric hinge comprising a transmission assembly, the transmission assembly comprising a first link and a second link, characterized in that, The electric hinge also includes: A connecting part, one end of which is slidably connected to the first connecting rod, and the other end of which is hinged to the second connecting rod; Alternatively, one end of the connecting part is slidably connected to the second connecting rod, and the other end of the connecting part is hinged to the first connecting rod; A buffer portion is disposed on the connecting portion and connected to the first link or the second link from the connecting portion. When the electric hinge is de-energized and manually locked, the second link abuts against the first link through the buffer portion.

2. Motorised hinge according to claim 1, characterised in that, The side of the connecting part is provided with a connecting groove, and the connecting part is slidably connected to the first connecting rod or the second connecting rod through the connecting groove.

3. Motorised hinge according to claim 2, characterised in that, The connecting part has a receiving groove, the buffer part is a spring, the spring is embedded in the receiving groove and the other end of the spring is connected to the corresponding first connecting rod or second connecting rod.

4. Motorised hinge according to claim 3, characterised in that, The transmission assembly also includes a tension spring, which is connected to the first connecting rod.

5. Motorised hinge according to claim 4, characterised in that, The transmission assembly also includes a housing, the second connecting rod is located inside the housing, the housing has a sliding groove, and both the first connecting rod and the second connecting rod are provided with pins that extend into the sliding groove.

6. Motorised hinge according to claim 5, characterised in that, The slide groove is disposed on opposite sides of the housing, and the pin is disposed on opposite sides of the first connecting rod and the second connecting rod. Both ends of the pin extend out of the slide groove, and the size of the end of the pin extending out of the slide groove is larger than the size of the slide groove.

7. Motorized hinge according to claim 5, characterized in that, The transmission assembly also includes a geared motor, the output shaft of which is connected to the first connecting rod. The geared motor is disposed on the side of the housing and fixedly connected to the housing.

8. Motorised hinge according to claim 7, characterised in that, The transmission assembly also includes a crank, which is connected to one end of the first connecting rod and passes through the output shaft of the geared motor. The first connecting rod moves closer to or further away from the second connecting rod via the crank.

9. Motorized hinge according to claim 5, characterized in that, The electric hinge also includes a locking tongue, which is hinged to the first end of the housing, and the end of the second link opposite to the first link is used to abut the locking tongue.

10. A steam oven, characterized by The steam oven includes an electric hinge as described in any one of claims 1-9 and a door connected to the electric hinge.

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