Door locking device and refrigerator comprising same

Abstract

The utility model provides a door locking device, which is used for locking a door body of a refrigerator to limit door opening and comprises a push rod device and a locking part, the push rod device of an automatic door opening refrigerator is used as a part of the door locking device of the refrigerator, the locking part is arranged to lock a push rod, and the locking part and the push rod are respectively arranged on the door body and a refrigerator body. The door locking device is high in matching degree with the push rod type automatic door opening refrigerator, an original push rod structure is utilized, the manufacturing cost is lower, and the door locking device and the push rod device can be arranged in the refrigerator body together, so that the door locking device is more hidden and attractive. On the basis of the moving push door and retraction position of a common push rod device, the first preset position used for being locked is additionally arranged, the relative position relation between the push rod and the locking part is limited, interference is avoided, the matching effect of the push rod and the locking part is achieved by adjusting the moving position of the push rod, and the structure is simple.

Description

Technical Field

[0001] The utility model relates to the field of refrigerators, in particular to a door locking device and a refrigerator comprising the same. Background Art

[0002] Traditional refrigerators all use manual sliding doors to open, which is difficult to open during daily use and can be accidentally opened by children or for other reasons.

[0003] In order to solve the problem that it is difficult to open the refrigerator door, some refrigerators with automatic door opening devices are available on the market. The automatic door opening device of the refrigerator mainly opens a hole near the door body of the refrigerator, and the refrigerator push rod cooperates with the hole in the extended state. When the user needs to open the door, the door opening command is given, which makes the push rod extend and pushes the refrigerator door open.

[0004] In response to the situation of mistaken opening, refrigerators with built-in door locks have appeared accordingly. However, refrigerator door locks are mostly independent devices, which are usually arranged in a complicated refrigerator structure.

[0005] Based on this, this case intends to solve the above two problems of the refrigerator while improving the overall coordination of the two devices and designing a device with a simpler structure and lower manufacturing cost. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the defects in the prior art that the automatic door opening device of the refrigerator and the door lock have a low degree of coordination, the refrigerator structure is relatively complicated, and the manufacturing cost is relatively high, and a door locking device and a refrigerator containing the same are provided.

[0007] The utility model solves the above technical problems through the following technical solutions:

[0008] A door locking device is used to lock the door of a refrigerator to restrict the door from being opened, the door locking device comprising:

[0009] A push rod device, the push rod device comprising a push rod, the push rod being connected to one of the door body and the refrigerator body, and the push rod being movable to a first preset position for being locked, a second preset position for opening the door body, and a third preset position for closing the door body;

[0010] A locking portion, the locking portion being connected to the other of the door body and the box body, and the locking portion being able to move to or leave a preset locking position to lock or unlock the push rod;

[0011] Wherein, when the push rod is located at the first preset position, the locking portion moves to the preset locking position and engages with the push rod;

[0012] Wherein, when the push rod is located at the second preset position or the third preset position, the locking portion leaves the preset locking position and is separated from the push rod.

[0013] In the present scheme, the push rod device of the automatic door opening refrigerator is used as a part of the refrigerator's door locking device, a locking part is provided to lock the push rod, and the locking part and the push rod are respectively provided on the door body and the box body, so as to restrict the opening of the refrigerator door. This door locking device has a high degree of coordination with the push rod type automatic door opening refrigerator, utilizes the original push rod structure, has a lower manufacturing cost, and can be arranged inside the refrigerator body together with the push rod device, which is more concealed and beautiful. On the basis of the door pushing and retracting positions of the general push rod device, a first preset position for being locked is added, and the coordination effect with the locking part can be achieved by adjusting the moving position of the push rod, and the structure is simple.

[0014] Preferably, the locking portion comprises a claw, the push rod device comprises a groove, and the claw is used to engage with the groove to lock the push rod.

[0015] In this solution, by providing a claw-shaped locking portion and a groove on the push rod, the locking portion can lock the push rod by engaging with the groove. The structure is simple, no additional matching parts are required for the push rod, and the claw and the rod have good shape matching.

[0016] Preferably, the door locking device further comprises a driving device, the driving device is connected to the push rod device, and the driving device is used to drive the push rod to move;

[0017] And / or, the door locking device further comprises a driving device, wherein the driving device is connected to the locking portion, and the driving device is used to drive the locking portion to move to or away from the preset locking position through rotation or linear motion.

[0018] In the present solution, a driving device for driving the push rod is provided to realize automatic control of the push rod; by providing different driving devices to drive the locking part to move, or adjusting the connection method between the driving device and the locking part, etc., the movement form of the locking part can be adjusted as needed, such as rotation or linear motion, which can meet most common usage requirements and adapt to different locking part structures, and has a wide range of applications.

[0019] Preferably, the driving device includes a power source and a transmission assembly, the power source is connected to the input end of the transmission assembly and is used to drive the rotation thereof, and the output end of the transmission assembly is connected to the locking portion and is used to drive the locking portion to move linearly.

[0020] In this solution, the driving device includes a transmission assembly, which transmits the force from the power source to the locking part, so that the locking part can be set away from the power source, reducing the restrictions on the size or movement of the locking part caused by the size or position of the power source; the transmission assembly can transform the action form of the power source, such as converting circular rotation into horizontal movement, etc., so as to adjust the movement form according to different locking requirements, and the structure is more perfect and has better structural adaptability.

[0021] Preferably, the transmission assembly comprises a first connecting shaft, a rotating wheel, a second connecting shaft, a first connecting rod and a second connecting rod;

[0022] Wherein, the first connecting shaft and the second connecting shaft are arranged at two ends of the rotating wheel, the first connecting shaft is arranged at the center of the rotating wheel and connected to the power source as the input end, and the second connecting shaft is offset from the center of the rotating wheel;

[0023] The first connecting rod is connected between the second connecting shaft and the second connecting rod, the rotating wheel drives the first connecting rod to rotate through the second connecting shaft, and the first connecting rod serves as the output end to drive the locking portion to move linearly.

[0024] In the present solution, by providing a rotating wheel rotating around the central first connecting axis in the transmission assembly, a primary conversion of power is achieved, that is, the circular rotation is converted into the circular rotation of the wheel rim position around the first connecting axis, thereby indirectly realizing the transformation of the motion form of the connecting rod assembly-locking part; by providing the first connecting rod and the second connecting rod, the degree of freedom of the moving direction of the locking part is improved. In theory, the locking part can make a linear reciprocating motion driven by the second connecting rod. In actual implementation, in theory, it can move along any preset form with the second connecting rod to adapt to the actual environment.

[0025] Preferably, the transmission assembly further comprises a limiter, wherein the limiter acts on the second connecting rod to limit the rotation of the second connecting rod relative to the first connecting rod and enables the second connecting rod to move linearly along its extension direction.

[0026] In this solution, a preset track is set for the second connecting rod through a limiting member, so that the second connecting rod moves in the expected direction, indirectly limiting the moving direction of the locking part, thereby avoiding restrictions on the size or movement of the locking part by the limiting part, so that the structural form of the locking part can be adjusted as needed.

[0027] Preferably, the limiting member comprises two limiting plates arranged opposite to each other, the two limiting plates are used to enclose a limiting channel, the second connecting rod passes through the limiting channel, and the two limiting plates are respectively located at the upper and lower sides of the second connecting rod along the thickness direction.

[0028] In this solution, two limiting plates are used as limiting members, surrounding the upper and lower sides of the second connecting rod to form a limiting channel. The limiting member is suitable for the structural characteristics of the rod, has a simple structure and low cost.

[0029] A refrigerator comprises a door locking device as described in any of the above schemes.

[0030] Preferably, the refrigerator further comprises a baffle, which is connected to the door body or the box body to which the locking portion is connected and is arranged in the axial extension direction of the push rod, and the baffle can be moved to or away from a blocking position;

[0031] When the baffle is at the blocking position, the baffle is used for the push rod at the second preset position to abut against the baffle to open the door body;

[0032] When the baffle leaves the blocking position, the push rod can move to a first preset position for being locked.

[0033] In the present solution, a movable baffle is added to the door locking device. When the push rod needs to be locked, the baffle leaves the blocking position, so that the push rod can move to the preset locked position without contacting the door body, thereby preventing the door body from being pushed open by mistake; when the push rod needs to push the door body open, or the push rod retracts, the baffle moves to the blocking position to serve as the pushed part of the door body; the baffle can be used to shield the locking part at the same time, that is, when the locking part does not need to work, the baffle blocks the axial moving path of the push rod, and can be used for sealing to protect the locking part, or to conceal the locking part to improve the aesthetics, etc.

[0034] Preferably, the refrigerator comprises a driving device, the driving device is connected to the baffle, and the driving device is used to drive the baffle to move to or leave the blocking position.

[0035] In this solution, the driving device can be flexibly adjusted according to the usage scenario. By setting different driving devices or adjusting the connection method between the driving device and the baffle, different movement forms of the baffle can be achieved and automatic control can be realized.

[0036] The positive and progressive effects of the utility model are:

[0037] A door locking device is provided, which is used to lock the door body of a refrigerator to restrict door opening. The device comprises a push rod device and a locking part. The push rod device of an automatic door opening refrigerator is used as a part of the door locking device of the refrigerator. The locking part is arranged to lock the push rod, and the locking part and the push rod are arranged on the door body and the box body respectively, so as to restrict the opening of the refrigerator door. The door locking device has a high degree of coordination with the push rod type automatic door opening refrigerator, utilizes the original push rod structure, has a lower manufacturing cost, and can be arranged inside the refrigerator body together with the push rod device, which is more concealed and beautiful. On the basis of the door pushing and retracting positions moved by the general push rod device, a first preset position for being locked is added, and the relative position relationship between the push rod and the locking part is defined, which not only avoids interference, but also realizes the coordination effect between the push rod and the locking part by adjusting the moving position of the push rod, and has a simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic diagram of the cooperation between the locking portion and the push rod of a door locking device according to one embodiment of the present utility model.

[0039] Figure 2 The present invention is a schematic structural diagram of a push rod of a door locking device according to an embodiment of the present invention.

[0040] Figure 3 The present invention is a perspective view of the right front side of a mechanism near the locking portion of a door locking device according to an embodiment of the present invention.

[0041] Figure 4 The present invention is a three-dimensional view of the left rear side of a mechanism near the locking portion of a door locking device according to an embodiment of the present invention.

[0042] Figure 5 Schematic diagram of the locked state of a door locking device according to an embodiment of the present invention.

[0043] Description of reference numerals:

[0044] Claw 11

[0045] Transmission components 12

[0046] Input 121

[0047] Output 122

[0048] First connecting shaft 123

[0049] Runner 124

[0050] Second connecting shaft 125

[0051] First connecting rod 126

[0052] Second connecting rod 127

[0053] Limiting piece 13

[0054] Limiting plate 131

[0055] Putter 2

[0056] Groove 21 DETAILED DESCRIPTION

[0057] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0058] Figure 1 Schematic diagram of the locking part and the push rod 2 of the door locking device according to one embodiment of the utility model. Figure 1 As shown, the door locking device of the utility model comprises a push rod 2 device, and the push rod 2 device comprises a push rod 2 and a locking part. The push rod 2 is connected to one of the door body and the refrigerator body, and the locking part is connected to the other of the door body and the refrigerator body. Therefore, when the locking part locks the push rod 2, the door body and the refrigerator body are also indirectly locked, that is, the door locking effect is achieved.

[0059] The push rod 2 can be moved to a first preset position for being locked, a second preset position for opening the door body, and a third preset position for closing the door body; accordingly, the locking portion can be moved to or away from the preset locking position to lock or unlock the push rod 2.

[0060] The push rod 2 in the utility model can be moved to three positions, corresponding to the three states of the push rod 2, namely, door pushing, door locking and non-operating. On the basis of maintaining the original door pushing function of the push rod 2, the door locking function is added by utilizing the original push rod 2, so that the door locking device of the utility model has a high degree of coordination with the push rod 2 type automatic door opening refrigerator. Moreover, the coordination effect between the push rod 2 and the locking part can be achieved by adjusting the moving position of the push rod 2, and the structure is simple and the manufacturing cost is low.

[0061] Those skilled in the art should understand that what is used here is the push rod 2 device in the automatic door opening device of the refrigerator commonly used in the prior art. Figure 1 The push rod 2 with a screw is shown, but in actual implementation, other types of refrigerator push rods 2 are also applicable to the utility model.

[0062] Figure 2 Schematic diagram of the structure of the push rod 2 of the door locking device according to one embodiment of the utility model. Figure 2 As shown, the push rod 2 in this embodiment further includes a groove 21, and the groove 21 is used to cooperate with the locking portion. Figure 1 As shown, the locking portion in this embodiment includes a claw 11, which engages with the groove 21 to achieve the locking effect of the locking portion on the push rod 2. The structure is simple, no additional matching parts are required to the push rod 2, and the claw 11 has a good fit with the rod's appearance.

[0063] like Figure 1As shown, this embodiment uses two claws 11 arranged opposite to each other to engage in the groove 21. In the actual implementation process, the main locking effect can be achieved by selecting one or more claws 11. In addition, the locking part and the push rod 2 structure matched with the locking part can be adjusted as needed. For example, the claw 11 can be replaced with a locking column structure, and the groove 21 can be replaced with a radial hole passing through the axis in the push rod 2. When the locking part locks the push rod 2, the locking column moves toward the axis of the push rod 2 and penetrates into the radial hole, thereby limiting the axial expansion and contraction of the push rod 2. This adjustment method also has a locking effect similar to that of this embodiment, and can be used as a reference for the implementation of the utility model.

[0064] Figure 3 The right front side stereogram of the mechanism near the locking part of the door locking device of one embodiment of the utility model. The door locking device in this embodiment also includes a driving device, which is connected to the claw 11, and the driving device is used to drive the claw 11 to move to or leave the preset locking position by rotation or linear motion. The specific structure and driving form of the driving device should also be adjusted according to the usage scenario. The specific structure of the driving device described in detail below is a preferred embodiment, which is only used as an example to illustrate the utility model. For example, the driving device selected in this embodiment is used to move the claw 11 to or leave the locking position by linear motion, but in the actual implementation process, it can also be adjusted to move the claw 11 by other forms such as rotation, and its specific adjustment method will be further described in detail below.

[0065] like Figure 3 As shown, the driving device includes a transmission component 12 and a power source not shown in the figure. Among them, the power source can be selected from ordinary motors, or other power sources compatible with the corresponding transmission component 12 can be selected as needed. The power source is connected to the input end 121 of the transmission component 12 and is used to drive it to rotate, while the output end 122 of the transmission component 12 is connected to the claw 11 and is used to drive the claw 11 to move linearly. In this way, the force from the power source is transmitted to the claw 11. The claw 11 can be set away from the power source, reducing the restrictions on the size or position of the power source on the size or movement of the claw 11; in addition, the transmission component 12 can transform the action form of the power source, such as converting circular rotation into horizontal movement, etc., so as to adjust the movement form according to different locking requirements, and the structure is more perfect and the structural adaptability is better.

[0066] During implementation, those skilled in the art may also adjust the movement of the output end 122 by adjusting the transmission assembly 12 to adapt to actual conditions.

[0067] Depend on Figure 3 , Figure 4It can be seen that the transmission assembly 12 includes a first connecting shaft 123, a rotating wheel 124, a second connecting shaft 125, a first connecting rod 126 and a second connecting rod 127. The first connecting shaft 123 and the second connecting shaft 125 are arranged at both ends of the rotating wheel 124, the first connecting shaft 123 is arranged at the center of the rotating wheel 124 and is connected to the power source as the input end 121, and the second connecting shaft 125 is offset from the center of the rotating wheel 124. Through this connection mode, when the power source drives the first connecting shaft 123 to rotate, it will drive the rotating wheel 124 to rotate around the center as a whole, thereby driving the eccentric second connecting shaft 125 to rotate, thereby indirectly realizing the movement form transformation of the connecting rod assembly-claw 11.

[0068] The first connecting rod 126 is connected between the second connecting shaft 125 and the second connecting rod 127. The rotating wheel 124 drives the first connecting rod 126 to rotate through the second connecting shaft 125. The second connecting rod 127, as the output end 122, drives the claw 11 to move linearly. Through this connection method, the degree of freedom of the moving direction of the claw 11 is improved, and the claw 11 can make linear reciprocating motion under the drive of the second connecting rod 127. In actual implementation, those skilled in the art can change the moving distance and form of the claw 11 by adjusting the number of connecting rods and the connection method to meet the actual shielding requirements.

[0069] like Figure 4 As shown, the transmission assembly 12 of this embodiment further includes a limiter 13, which acts on the second connecting rod 127 to limit the rotation of the second connecting rod 127 relative to the first connecting rod 126 and allows the second connecting rod 127 to move linearly along its extension direction. In this embodiment, the limiter 13 sets a preset track for the second connecting rod 127, so that the second connecting rod 127 moves in the expected direction, and indirectly limits the moving direction of the claw 11, thereby avoiding the limitation of the size or movement of the claw 11 by the limiter. Figure 3 As shown, the limiting member 13 includes two limiting plates 131 arranged opposite to each other, and the two limiting plates 131 are used to enclose a limiting channel. The second connecting rod 127 is passed through the limiting channel, and the two limiting plates 131 are respectively located on the upper and lower sides of the second connecting rod 127 along the thickness direction.

[0070] In actual implementation, the structure or setting position of the limiter 13 can be changed, for example, the limiter 13 is set to be a hinge block close to one side of the thickness direction of the second limiter rod, so that the second connecting rod 127 can rotate / swing around the hinge block under the drive of the first connecting rod 126 to drive the claw 11 to reciprocate along the arc path. At the same time, those skilled in the art should understand that when the number and connection mode of the connecting rods are adjusted as above, the limiter 13 should also be adjusted accordingly to cooperate with the connecting rods to guide the claw 11 to move as expected.

[0071] Similarly, a driving device with matching structure may be provided for the push rod 2 to realize automatic control of the push rod 2 .

[0072] Figure 5 The two claws 11 in this embodiment use a two-part driving device, but in actual implementation, the two transmission components 12 can be connected to the same power source to further simplify the structure.

[0073] The utility model also discloses a refrigerator, which includes a door locking device as described in any of the above schemes. The refrigerator of this embodiment also includes a baffle, which is connected to the door body or box body connected to the locking part, and is arranged in the axial extension direction of the push rod 2, and the baffle can move to or leave the blocking position. The baffle is opened when the push rod 2 is used to push the door, and moves to the blocking position when the door is closed or the push rod 2 is used to lock the door. The main purpose of setting the baffle is to enable the push rod 2 to move to a preset locked position without contacting the door body, so as to prevent the door body from being pushed open by mistake; when the push rod 2 needs to push the door body open, or when the push rod 2 retracts, the baffle moves to the blocking position to serve as the pushed part of the door body; in addition, the baffle can be used to shield the locking part at the same time, that is, when the locking part does not need to work, the baffle shields the axial moving path of the push rod 2, which can be used for sealing to protect the locking part, or can conceal the locking part to improve the aesthetics.

[0074] Similar to the aforementioned claw 11, the baffle can be connected to a similar driving device, and its main effect is the same as before.

[0075] In the description of this embodiment, the directions indicated by the selected directional words "front", "back", "left", "right", "upper", and "lower" are based on the directions shown in the drawings of the specification. The indicated directions are only used to simplify the description of the utility model, and are not used as specific directions for actual installation and use, and therefore are not used as limitations on the utility model.

[0076] In the description of the present utility model, the selected embodiment is one of the specific implementation methods within the protection scope defined by the attached claims, which is only used as an example. The protection scope of the present utility model shall be based on the definition of the claims.

[0077] Those skilled in the art may make various adjustments to the implementation methods thereof without departing from the principles and essence of the present invention. The above-mentioned exemplified adjusted implementation methods all fall within the protection scope of the present invention and will not result in the loss of key technical effects.

Claims

1. A door locking device, used to lock the door of a refrigerator to restrict the door from being opened, characterized in that: The door locking device comprises: A push rod device, the push rod device comprising a push rod, the push rod being connected to one of the door body and the refrigerator body, and the push rod being movable to a first preset position for being locked, a second preset position for opening the door body, and a third preset position for closing the door body; A locking portion, the locking portion being connected to the other of the door body and the box body, and the locking portion being able to move to or leave a preset locking position to lock or unlock the push rod; Wherein, when the push rod is located at the first preset position, the locking portion moves to the preset locking position and engages with the push rod; Wherein, when the push rod is located at the second preset position or the third preset position, the locking portion leaves the preset locking position and is separated from the push rod.

2. The door locking device according to claim 1, characterized in that: The locking portion includes a claw, and the push rod device includes a groove. The claw is used to engage with the groove to lock the push rod.

3. The door locking device according to claim 1, characterized in that: The door locking device further comprises a driving device, which is connected to the push rod device and is used to drive the push rod to move; And / or, the door locking device further comprises a driving device, wherein the driving device is connected to the locking portion, and the driving device is used to drive the locking portion to move to or away from the preset locking position through rotation or linear motion.

4. The door locking device according to claim 3, characterized in that: The driving device includes a power source and a transmission component, wherein the power source is connected to the input end of the transmission component and is used to drive the transmission component to rotate, and the output end of the transmission component is connected to the locking part and is used to drive the locking part to move linearly.

5. The door locking device according to claim 4, characterized in that: The transmission assembly includes a first connecting shaft, a rotating wheel, a second connecting shaft, a first connecting rod and a second connecting rod; Wherein, the first connecting shaft and the second connecting shaft are arranged at two ends of the rotating wheel, the first connecting shaft is arranged at the center of the rotating wheel and connected to the power source as the input end, and the second connecting shaft is offset from the center of the rotating wheel; The first connecting rod is connected between the second connecting shaft and the second connecting rod, the rotating wheel drives the first connecting rod to rotate through the second connecting shaft, and the first connecting rod serves as the output end to drive the locking portion to move linearly.

6. The door locking device according to claim 5, characterized in that: The transmission assembly further includes a limiting member, which acts on the second connecting rod to limit the second connecting rod from rotating relative to the first connecting rod and enables the second connecting rod to move linearly along its extending direction.

7. The door locking device according to claim 6, characterized in that: The limiting member includes two limiting plates arranged opposite to each other, the two limiting plates are used to enclose a limiting channel, the second connecting rod is passed through the limiting channel, and the two limiting plates are respectively located at the upper and lower sides of the second connecting rod along the thickness direction.

8. A refrigerator, characterized in that: The refrigerator comprises a door locking device as described in any one of claims 1-7.

9. The refrigerator according to claim 8, characterized in that: The refrigerator further comprises a baffle, which is connected to the door body or the box body connected to the locking portion and is arranged in the axial extension direction of the push rod, and the baffle can be moved to or away from a blocking position; When the baffle is at the blocking position, the baffle is used for the push rod at the second preset position to abut against the baffle to open the door body; When the baffle leaves the blocking position, the push rod can move to a first preset position for being locked.

10. The refrigerator according to claim 9, characterized in that: The refrigerator comprises a driving device, which is connected to the baffle and is used for driving the baffle to move to or leave the blocking position.

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