A door lock with a spring and a home appliance having the same

Abstract

The utility model discloses a door lock with spring and household appliance with the door lock, the door lock with spring includes bottom shell, door hook, clamping cam, locking slider, locking pin and first spring, the bottom shell includes lock mouth, the clamping cam can rotate around the bottom shell, the locking slider is connected with the clamping cam, and the locking pin is used for limiting the locking slider movement. The locking slider includes slider hole, and the first spring is arranged between the locking pin and the slider hole one side slider hole inner wall. The utility model discloses a door lock with spring and household appliance with the door lock, under the door lock locking state, can use certain force to open the door, expands the application scene of the household appliance, increases the function, improves the user experience.

Description

Technical Field

[0001] This utility model belongs to the field of household appliance technology, specifically a door lock with a spring and a household appliance with the door lock. Background Technology

[0002] For safety reasons, many household appliances use door locks to secure the working chamber during use, preventing injury to the user or disruption of the appliance's normal operation if the door is accidentally opened. For example, Chinese invention patent CN114108256A discloses a latch (equivalent to a door lock) that prevents the door from opening while the appliance is in operation. Current door lock structures, such as... Figure 1 and 2 As shown, the locking slider is completely restricted by the locking pin, preventing the door lock from opening. However, some household appliances, such as dryers, require a relatively low opening force when not in operation for ease of use. On the other hand, they require a higher opening force during operation to prevent clothes from forcing the door open. Furthermore, even with the high opening force during operation, the dryer still needs to allow customers to manually open the door to add clothes. The door lock must allow the appliance to be manually opened and closed a certain number of times under high opening force without damaging the lock or affecting its basic functions. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a door lock with a spring and a household appliance with the same door lock. The door lock with the spring and the household appliance with the same door lock can change the opening force value when the door is locked and unlocked, that is, the opening force is small when the door is unlocked and large when the door is locked.

[0004] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0005] A spring-loaded door lock includes a base shell, a door hook, a clamping cam, a locking slider, a locking pin, and a first spring. The clamping cam is rotatable around the base shell, and the locking slider is connected to the clamping cam. The locking pin is used to restrict the movement of the locking slider. The locking slider includes a slider hole, and the first spring is disposed between the locking pin and the inner wall of the slider hole on one side of the slider hole.

[0006] Furthermore, the spring-loaded door lock also includes a top cover, on which the first spring is slidably mounted.

[0007] Another improvement is that one end of the first spring is fixedly installed to the inner wall of the slider hole, and the other end of the first spring is a free end.

[0008] Furthermore, a spring groove is provided on the inner wall of the slider hole, and part or all of the first spring is located in the spring groove.

[0009] Another improvement is that the spring-loaded door lock also includes a stop block located between the first spring and the locking pin in the slider hole, the stop block being movable relative to the locking slider.

[0010] Furthermore, the spring-loaded door lock also includes a top cover, and the stop is slidably mounted on the top cover or the bottom shell.

[0011] Furthermore, one end of the first spring is fixedly installed to the stop block, and the other end of the first spring is a free end.

[0012] Furthermore, one end of the first spring is fixedly installed to the inner wall of the slider hole, and the other end of the first spring is fixedly installed to the stop block.

[0013] Furthermore, a spring groove is provided on the inner wall of the slider hole, and part or all of the first spring is located in the spring groove.

[0014] A household appliance with the aforementioned spring-loaded door lock includes a body, a door, and the aforementioned spring-loaded door lock, which is mounted on the body or the door.

[0015] This utility model discloses a spring-loaded door lock and a household appliance with the same lock. When the lock is locked, the door can be opened with a certain force, which expands the application scenarios of the household appliance, increases its functionality, and improves the user experience. Attached Figure Description

[0016] Figure 1 This is the main view of the existing door lock;

[0017] Figure 2 for Figure 1 The AA section view of the door lock shown;

[0018] Figure 3 This is a perspective view of the spring-loaded door lock of this utility model (top cover removed).

[0019] Figure 4 This is a front view of the spring-loaded door lock of this utility model (with the top cover removed).

[0020] Figure 5 This is a schematic diagram of the locking slider structure;

[0021] Figure 6 A schematic diagram showing the positional relationship between the locking slider, stop, and spring;

[0022] Figure 7 This is a schematic diagram of the combination of the locking slider, the transmission slider, and the clamping cam of this utility model.

[0023] Figure 8 for Figure 7 BB-direction cross-sectional view of the combination shown Detailed Implementation

[0024] The following detailed description, in conjunction with the accompanying drawings, provides a spring-loaded door lock and a household appliance incorporating the same lock, based on this utility model. In this description, it should be understood that terms such as "left side," "right side," "upper part," "lower part," and "bottom," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for ease of description and simplification. They do not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Terms such as "first" and "second" do not indicate the importance of components and therefore should not be construed as limitations on this utility model. The specific dimensions and values ​​used in this embodiment are merely illustrative examples and do not limit the scope of protection of this utility model. The following embodiments use the automatic door lock of this utility model in a clothes dryer as an example; however, it should be noted that the automatic door lock of this utility model is not limited to applications in clothes dryers.

[0025] like Figure 3 and 4 As shown, a spring-loaded door lock includes a base shell 1, a door hook 2, a clamping cam 3, a locking slider 6, a locking pin 7, and a first spring 4. The base shell 1 includes a lock jaw. The clamping cam 3 is rotatable around the base shell. In this embodiment, when the spring-loaded door lock includes a top cover, the clamping cam 3 is hinged to the top cover or the base shell 1. The locking slider 6 is connected to the clamping cam 3; the locking pin 7 is used to restrict the movement of the locking slider 6. Figure 5 As shown, the locking slider 6 includes a slider hole 61, and an inner wall 62 of the slider hole 61 is provided on the right side of the slider hole 61; as Figure 3 , 4 As shown in Figure 6, a first spring 4 is provided between the locking pin 7 and the inner wall 62 of the slider hole. The first spring 4 can be installed in various ways. For example, the first spring 4 can be slidably installed on the upper cover or bottom shell 1, with both ends of the first spring 4 being free ends. Alternatively, one end of the first spring 4 can be fixedly installed to the inner wall 62 of the slider hole, while the other end of the first spring 4 is a free end. The free end can abut against the locking pin 7 or be at a certain distance from the locking pin 7.

[0026] A second spring 8 is provided between the upper left side of the locking slider 6 and the inner wall of the bottom shell 1. When the locking pin 7 is inserted into the locking hole 61, the first spring 4 on the locking slider 6 is pressed against the locking pin 7 and compressed under the action of the clamping cam 3, thus locking the door lock with the spring. The locking pin 7 is controlled by a control system, such as an electronic control system, which is existing technology and will not be described in detail in this utility model.

[0027] To save space and maintain the stability of the position of the first spring 4, such as Figure 5 and 6 As shown, a spring groove 63 is provided on the inner wall 62 of the slider hole, and part or all of the first spring 4 is located in the spring groove 63. A mounting post 64 is provided in the spring groove 63 for mounting the first spring 4.

[0028] Preferred, such as Figure 3 , 4 As shown in Figure 6, a spring-loaded door lock in this embodiment also includes a stop block 5. The stop block 5 is located in the slider hole 61 between the first spring 4 and the locking pin 7, and the stop block 5 and the locking slider 6 can move relative to each other. Since both the locking slider 6 and the stop block 5 can slide relative to the bottom shell 1, the stop block 5 can be slidably mounted on the top cover or the bottom shell 1. Alternatively, the stop block 5 can be configured with protrusions on both sides, and the locking slider 6 can be configured with grooves on both sides, allowing the protrusions of the stop block 5 to slide in the grooves of the locking slider 6. One end of the first spring 4 is fixedly mounted to the stop block 5, and the other end of the first spring 4 is a free end. Alternatively, one end of the first spring 4 is fixedly mounted to the inner wall 62 of the slider hole, and the other end of the first spring 4 is fixedly mounted to the stop block 5.

[0029] Of course, even with a stop, a mounting post 64 can still be installed on the inner wall 62 of the slider hole. The mounting post 64 is used to install the first spring 4. Figure 5 and 6 As shown, a spring groove 63 is provided on the inner wall 62 of the slider hole. Part or all of the first spring 4 is located in the spring groove 63, and the mounting post 64 is located in the spring groove 63. The spring groove 63 can be larger than the width of the stop block 5. When the first spring 4 is compressed, the locking slider 6 moves to the left, and the spring groove 63 can accommodate part or all of the stop block 5.

[0030] like Figure 8 As shown, the clamping cam 3 includes a first clamping part 31, a second clamping part 32, and a clamping opening 33 formed by the first and second clamping parts. The door hook 2 includes a door hook hole and a door hook arm. Since the clamping cam 3 is hinged to the bottom shell 1, a torsion spring or other elastic element is used to keep the clamping cam 3 deflected towards the second clamping part 32. When the first clamping part 31 passes through the door hook hole and the clamping opening 33 engages with the door hook arm, the spring-loaded door lock is in the closed state.

[0031] The locking slider 6 and the clamping cam 3 can be in direct contact and directly driven, or a transmission slider can be set between the locking slider 6 and the clamping cam 3, such as... Figure 7As shown, the clamping cam 3 rotates clockwise, driving the transmission slider 9, which is in contact with the clamping cam 3, to move upward. Since the transmission slider 9 and the locking slider 6 are in contact through an inclined plane, the upward movement of the transmission slider 9 pushes the locking slider 6 to move to the left. That is, the transmission slider 9 is used to convert the rotation of the clamping cam 3 into the linear movement of the locking slider 6.

[0032] When the spring-loaded door lock of this invention is in the locked state, the locking pin is inserted into the locking hole. (Reference) Figure 3 , Figure 4 and 6 To open the door, pull the door hook with a certain force. The door hook pulls the clamping cam to rotate, which in turn moves the locking slider to the upper left. The inner wall on the left side of the locking hole or the inner wall on the left side of the spring groove compresses the first spring. Although the locking pin remains stationary, the locking slider has disengaged from the rotating cam, thus not preventing the door from being opened. The force required to open the door is limited by the elasticity of the first spring according to functional requirements.

[0033] This utility model also discloses a household appliance with the aforementioned spring-loaded door lock, including a body, a door, and the aforementioned spring-loaded door lock, wherein the spring-loaded door lock is installed on the body or the door.

[0034] Based on the description of the preferred embodiments of the present invention, it should be clear that the present invention as defined by the appended claims is not limited to the specific details set forth in the above description, and many obvious changes to the present invention without departing from the spirit or scope of the present invention may also achieve the purpose of the present invention.

Claims

1. A spring-loaded door lock, comprising a base shell, a door hook, a clamping cam, a locking slider, a locking pin, and a first spring, wherein the clamping cam is rotatable about the base shell, and the locking slider is connected to the clamping cam; the locking pin is used to restrict the movement of the locking slider; characterized in that, The locking slider includes a slider hole, and a first spring is provided between the locking pin and the inner wall of the slider hole on one side.

2. The spring-loaded door lock according to claim 1, characterized in that, The spring-loaded door lock also includes a top cover, on which the first spring is slidably mounted.

3. The spring-loaded door lock according to claim 1, characterized in that, One end of the first spring is fixedly installed to the inner wall of the slider hole, and the other end of the first spring is a free end.

4. The spring-loaded door lock according to claim 3, characterized in that, A spring groove is provided on the inner wall of the slider hole, and part or all of the first spring is located in the spring groove.

5. The spring-loaded door lock according to claim 1, characterized in that, It also includes a stop block located between the first spring and the locking pin in the slider hole, and the stop block and the locking slider can move relative to each other.

6. The spring-loaded door lock according to claim 5, characterized in that, The spring-loaded door lock also includes a top cover, and the stop is slidably mounted on the top cover or the bottom shell.

7. The spring-loaded door lock according to claim 5, characterized in that, One end of the first spring is fixedly installed to the stop block, and the other end of the first spring is a free end.

8. The spring-loaded door lock according to claim 5, characterized in that, One end of the first spring is fixedly installed to the inner wall of the slider hole, and the other end of the first spring is fixedly installed to the stop block.

9. The spring-loaded door lock according to claim 5, characterized in that, A spring groove is provided on the inner wall of the slider hole, and part or all of the first spring is located in the spring groove.

10. A household appliance with a door lock having the aforementioned spring, characterized in that, It includes a body, a door, and a spring-loaded door lock as described in any one of claims 1 to 9, wherein the spring-loaded door lock is mounted on the body or the door.

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