Door lock structure of side door opening electrical equipment

Abstract

The utility model relates to a door lock structure of side-opening door electrical equipment, which comprises a door lock rod, a door lock handle, a door lock handle, a door lock handle, a door lock handle and a door lock handle, and the door lock handle is arranged on a side-opening door of the electrical equipment; the locking device is arranged on the main body of the electrical equipment, and the locking device comprises a shell, a cam and a limiting stopper; the shell is provided with a jack; the cam is rotatably installed in the shell, the circumferential edge of the cam is sequentially provided with a locking tooth, a locking pushing tooth, a locking position and an unlocking position, and the insertion hole directly faces the locking pushing tooth in the initial state; when the door lock rod is inserted into the fastener from the inserting hole and acts on the locking pushing teeth, the cam is made to rotate, and meanwhile the locking teeth are driven to be clamped in the lock hole. And the limiter is arranged in the shell, and a movable limiting part of the limiter is respectively clamped on the locking position and the unlocking position of the cam during locking and unlocking. According to the door lock structure, the locking performance of the side opening door is stable and reliable, the closing sealing performance of the side opening door is improved, the structure is obviously simplified, the number of parts is small, cost is reduced, and assembling efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of household electrical appliances, and particularly relates to a door lock structure of a side-opening door electrical appliance. Background Art

[0002] At present, the existing household appliances such as microwave ovens, electric ovens, steam ovens and ovens all adopt the side-opening door method. However, these existing side-opening door appliances all use an electric pull rod to drive the cam to rotate, so that the cam is stuck in the door lock rod; this structure has a poor locking effect on the side-opening door, and it is easy to become loose and unstable, thereby affecting the sealing of the side-opening door. In addition, the use of electric drive makes the entire device structure more complicated, and it is composed of more parts, which increases the difficulty of production and assembly and reduces efficiency. Utility Model Content

[0003] In order to solve the above problems existing in the prior art, the utility model provides a door lock structure for side-opening door electrical equipment.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] The utility model discloses a door lock structure for a side-opening door electrical device, comprising:

[0006] A door lock rod is arranged on the side door of the electrical equipment and is provided with a lock hole;

[0007] The locker is arranged on the main body of the electrical equipment, and the locker comprises a housing, a cam and a stopper; wherein the housing is provided with an insertion hole; the cam is rotatably installed in the housing, and the circumferential edge of the cam is provided with a locking tooth, a locking push tooth, a locking position and an unlocking position in sequence, and the insertion hole is directly opposite to the locking push tooth in the initial state; when the door lock rod is inserted into the locker from the insertion hole and acts on the locking push tooth, the cam is rotated, and at the same time, the locking tooth is driven to be stuck in the lock hole;

[0008] The limiter is arranged in the housing, and its movable limiter portion is respectively stuck on the locking position and the unlocking position of the cam when locking and unlocking.

[0009] Furthermore, the locking teeth and locking push teeth are distributed in a "V" shape on the cam.

[0010] Furthermore, the limiter includes a movable limit part, a spring and an outer shell, and the outer shell is fixedly connected to the inner wall of the shell; the movable limit part has a shaft part, and the movable limit part can axially reciprocate and is installed in the outer shell, and its end away from the shaft part extends out of the outer shell and is stuck in the locked position or the unlocked position; the spring is sleeved on the shaft part.

[0011] Furthermore, the locking position and the unlocking position are arc-shaped recesses, with a raised arc-shaped transition surface provided therebetween; a roller is provided at one end of the movable limiting portion away from the shaft portion, which rolls to the locking position or the unlocking position via the arc-shaped transition surface during the rotation of the cam.

[0012] Furthermore, the cam is in the shape of a plate, and a roller seat is provided at one end of the movable limiting portion away from the shaft portion. The roller is installed on the roller seat through a rotating shaft, and both sides of the roller seat are higher than the roller. During the movement of the movable limiting portion between the locked position and the unlocked position, the movable limiting portion is located on both sides of the flat cam to limit and guide the movable limiting portion.

[0013] Furthermore, the movable limiting portion is provided with a guide column, the housing is provided with a guide hole, the extension direction of the guide hole is consistent with the movement direction of the movable limiting portion, and the guide column is reciprocally movably disposed in the guide hole.

[0014] Furthermore, the lock also includes a rolling support member, which is arranged in the shell and close to the insertion hole.

[0015] Furthermore, the rolling support member is a circular roller, which is horizontally arranged in the shell and has two ends rotatably connected to the shell.

[0016] Beneficial effects of the utility model:

[0017] By means of the door lock structure of the side-opening electrical equipment of the utility model, the side-opening door of the electrical equipment can be locked and unlocked, the locking performance is stable and reliable, the closing sealing of the side-opening door is improved, and compared with the existing structure, the door lock structure is significantly simplified and has fewer assembly parts, which not only reduces costs but also improves assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the door lock structure of the side-opening door electrical equipment according to the embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of the use of the door lock structure of the side-opening door electrical equipment according to the embodiment of the utility model;

[0020] Figure 3 It is a structural schematic diagram of a limiter in a door lock structure of a side-opening door electrical device according to an embodiment of the utility model;

[0021] Figure 4 It is a schematic cross-sectional view of the structure of a limiter in a door lock structure of a side-opening door electrical device according to an embodiment of the utility model.

[0022] Explanation of the accompanying drawings: 100, door lock rod, 101, lock hole, 200, lock, 201, shell, 202, cam, 203, limiter, 204, locking tooth, 205, locking push tooth, 206, locking position, 207, unlocking position, 208, arc-shaped transition surface, 209, movable limiting portion, 210, spring, 211, shell, 212, shaft, 213, roller, 214, roller seat, 215, first rotating shaft, 216, guide column, 217, guide hole, 218, rolling support, 219, second rotating shaft. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] See also Figure 1 , Figure 1 The invention is a door lock structure of a side-opening door electrical device according to an embodiment of the present invention, comprising a door lock rod 100 and a locker 200. In the figure, a housing of one side of the locker 200 is removed.

[0025] The door lock rod 100 of the utility model is arranged on the side door of the electrical device, and is provided with a lock hole 101; specifically, it can be: a door lock rod 100 is provided on the inner surface of the end of the side door of the electrical device away from the hinge connection, and the lock hole 101 is provided at the end of the door lock rod 100 inserted into the locking device 200 (that is, the end away from the side door).

[0026] The lock 200 of the utility model is arranged on the main body of the electrical device, and can be arranged on the inner side of the surface of one side where the main body of the electrical device and the side door are connected. Figure 1 and 2 As shown, the lock 200 includes a shell 201, a cam 202 and a limiter 203; wherein the shell 201 is provided with a socket (not shown in the figure); the cam 202 is rotatably installed in the shell 201 (specifically, as shown in the figure, the cam 202 is rotatably assembled in the shell 201 through a second rotating shaft 219); the circumferential edge of the cam 202 is provided with a locking tooth 204, a locking push tooth 205, a locking position 206 and an unlocking position 207 in sequence, and the locking tooth 204 and the locking push tooth 205 are distributed in a "V" shape on the cam 202, and the locking push tooth 205 in the initial state is opposite to the socket; the limiter 203 is arranged in the shell 201 and has a movable limiting portion 209.

[0027] The working process of the door lock structure of the side-opening door electrical equipment described in the utility model is as follows: when the door lock rod 100 is inserted into the lock device 200 from the insertion hole and acts on the locking push tooth 205, the cam 202 is rotated, and at the same time, the locking tooth 204 is driven to be stuck in the lock hole 101. During this process, the movable limiting part 209 of the limiter 203 moves from the unlocking position 207 of the cam 202 to the locking position 206, so as to achieve the closing and locking of the side door; when the door lock rod 100 is pulled out of the lock device 200, the hole wall of the lock hole 101 acts on the locking tooth 204, so that the cam 202 rotates in the opposite direction until the locking tooth 204 is completely disengaged from the lock hole 101. During this process, the movable limiting part 209 moves from the locking position 206 of the cam 202 to the unlocking position 207, so as to achieve the opening and unlocking of the side door.

[0028] The door lock structure of the utility model can be used to lock and unlock the side door of the electrical equipment. At the same time, the locking teeth 204 and the limiter 203 are combined to improve the locking stability and reliability of the door lock rod 100, and the closing sealing of the side door is improved. Moreover, compared with the existing structure, the door lock structure is significantly simplified and has fewer assembly parts, which not only reduces costs but also improves assembly efficiency.

[0029] like Figure 3 and 4 As shown, the limiter 203 includes a movable limiter 209, a spring 210 and a shell 211, and the shell 211 is fixedly connected to the inner wall of the housing 201; the movable limiter 209 has a shaft 212, and the spring 210 is sleeved on the shaft 212, and its two ends are respectively connected to the movable limiter 209 and the shell 211; the movable limiter 209 can axially reciprocate and is installed in the shell 211, and its end away from the shaft 212 extends out of the shell 211 and is stuck in the locking position 206 or the unlocking position 207, that is, when the door lock rod 100 is inserted into the locker 200 and locked, the end of the movable limiter 209 away from the shaft 212 is stuck In the locked position 206, when the door lock rod 100 is pulled out of the lock 200 to be unlocked, the end of the movable limiting portion 209 away from the shaft portion 212 is stuck in the unlocking position 207, and in this switching process, the movable limiting portion 209 is first moved in the direction away from the cam 202 by the action of the cam 202, and further compresses the slightly compressed spring 210, and then moves in the opposite direction and resets under the action of the spring 210 until it is completely stuck in the locked position 206 or the unlocking position 207. At this time, the movable limiting portion 209 located in the locked position 206 or the unlocking position 207 still exerts a force on the cam 202 under the action of the spring 210, thereby increasing the restriction on the cam 202.

[0030] As a preferred embodiment of the present invention, Figure 1-4As shown, the locking position 206 and the unlocking position 207 of the door lock structure are arc-shaped recesses, with a raised arc-shaped transition surface 208 provided therebetween, and a roller 213 is provided at the end of the movable limiting portion 209 away from the shaft portion 212. During the rotation of the cam 202, the roller 213 of the movable limiting portion 209 repeatedly rolls to the locking position 206 or the unlocking position 207 via the arc-shaped transition surface 208, and the resetting force of the movable limiting portion 209 is used by the arc-shaped transition surface 208 and the roller 213 to assist the rotation of the cam 202, thereby reducing the force applied in the later stage of closing and opening operations of the side door, and improving the operating experience.

[0031] As a preferred embodiment of the present invention, Figure 1-4 As shown, the cam 202 of the door lock structure is in the shape of a plate, and a roller seat 214 is provided at one end of the movable limiting portion 209 away from the shaft portion 212. The roller 213 is installed on the roller seat 214 through a first rotating shaft 215, and both sides of the roller seat 214 are higher than the roller 213. When the movable limiting portion 209 moves between the locking position 206 and the unlocking position 207, it is located on both sides of the flat cam 202, which limits and guides the movable limiting portion 209, thereby improving the stability of the relative movement between the movable limiting portion 209 and the cam 202.

[0032] As a preferred embodiment of the present invention, Figure 3 and Figure 4 As shown, the movable stopper 209 of the door lock structure is provided with a guide post 216, and the housing 211 is provided with a guide hole 217. The extension direction of the guide hole 217 is consistent with the movement direction of the movable stopper 209, and the guide post 216 is reciprocally disposed in the guide hole 217. The guide post 216 and the guide hole 217 improve the stability of the axial movement of the movable stopper 209.

[0033] Moreover, the guide column 216 is provided with a small diameter section 210 adapted to the aperture of the guide hole 217, and the small diameter section 210 is reciprocatably placed in the guide hole 217, and the end of the shaft portion 212 away from the roller 213 is axially movable through the housing 211, and cooperates with the guide column 216 and the guide hole 217, so that the movable stopper 209 can be axially reciprocated and installed in the housing 211. There is no need to additionally set up an axially movable fixing structure of the movable stopper 209, so that the structure is further simplified, the production and assembly are easier, and the efficiency is higher.

[0034] As a preferred embodiment of the present invention, Figure 1 and Figure 2As shown, the locker 200 of the door lock structure further includes a rolling support 218, which is disposed in the housing 201 and near the insertion hole. Specifically, the rolling support 218 can be a circular roller, which is horizontally disposed in the housing 201, and the two ends are rotatably connected to the housing 201. The rolling support 218 can support and guide the inserted door lock rod 100 in one direction, and can avoid or reduce the mutual friction between the door lock rod 100 and the lower hole edge of the insertion hole, which not only improves the operability of locking and unlocking, but also avoids or reduces wear and tear, and improves the overall performance.

[0035] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. A door lock structure for a side-opening door electrical device, characterized in that: include; A door lock rod (100) is arranged on a side door of the electrical device and is provided with a lock hole (101); A lock (200) is arranged on a main body of an electrical device, and comprises a housing (201), a cam (202) and a stopper (203); wherein the housing (201) is provided with an insertion hole; the cam (202) is rotatably mounted in the housing (201); a locking tooth (204), a locking push tooth (205), a locking position (206) and an unlocking position (207) are sequentially arranged on the circumferential edge of the cam (202); and the insertion hole is directly opposite to the locking push tooth (205) in an initial state; when a door lock rod (100) is inserted into the lock (200) from the insertion hole and acts on the locking push tooth (205), the cam (202) is rotated, and at the same time, the locking tooth (204) is driven to be stuck in the lock hole (101); The limiter (203) is arranged in the housing (201), and its movable limiter portion (209) is respectively stuck on the locking position (206) and the unlocking position (207) of the cam (202) when locking and unlocking.

2. The door lock structure of the side-opening door electrical equipment according to claim 1, characterized in that: The locking teeth (204) and the locking pushing teeth (205) are arranged on the cam (202) in a V-shaped distribution.

3. The door lock structure of the side-opening door electrical equipment according to claim 1 or 2, characterized in that: The limiter (203) comprises a movable limiter (209), a spring (210) and a shell (211), wherein the shell (211) is fixedly connected to the inner wall of the housing (201); the movable limiter (209) has a shaft (212), and the movable limiter (209) can axially reciprocate and is installed in the shell (211), and one end of the movable limiter (209) away from the shaft (212) extends out of the shell (211) and is stuck in a locked position (206) or an unlocked position (207); the spring (210) is sleeved on the shaft (212).

4. The door lock structure of the side-opening door electrical equipment according to claim 3 is characterized in that: The locking position (206) and the unlocking position (207) are arc-shaped recesses, and a raised arc-shaped transition surface (208) is provided between them; the movable limiting portion (209) is provided with a roller (213) at one end away from the shaft portion (212), and rolls to the locking position (206) or the unlocking position (207) via the arc-shaped transition surface (208) during the rotation of the cam (202).

5. The door lock structure of the side-opening door electrical equipment according to claim 4, characterized in that: The cam (202) is in the shape of a plate. A roller seat (214) is provided at one end of the movable limiting portion (209) away from the shaft portion (212). The roller (213) is mounted on the roller seat (214) via a rotating shaft (215). Both sides of the roller seat (214) are higher than the roller (213). During the movement of the movable limiting portion (209) between the locking position (206) and the unlocking position (207), the movable limiting portion (209) is located on both sides of the plate-shaped cam (202), thereby limiting and guiding the movable limiting portion (209).

6. The door lock structure of the side-opening door electrical equipment according to claim 3, characterized in that: The movable limiting portion (209) is provided with a guide column (216), and the housing (211) is provided with a guide hole (217). The extension direction of the guide hole (217) is consistent with the movement direction of the movable limiting portion (209), and the guide column (216) is reciprocatingly disposed in the guide hole (217).

7. The door lock structure of the side-opening door electrical equipment according to claim 1 or 2 or 4 or 5 or 6, characterized in that: The lock (200) further comprises a rolling support member (218), wherein the rolling support member (218) is arranged in the housing (201) and close to the insertion hole.

8. The door lock structure of the side-opening door electrical equipment according to claim 7, characterized in that: The rolling support member (218) is a circular roller, which is horizontally arranged in the housing (201) and has two ends rotatably connected to the housing (201).

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