CN218953046U - Lock structure, door lock and refrigerator - Google Patents

Abstract

The utility model discloses a lock structure, a door lock and a refrigerator, comprising a locked part and a locking part for locking the locked part, wherein the locking part comprises a swing rod rotating around a fixed shaft, a lock hook is arranged on the swing rod, the refrigerator further comprises a pressing gear telescopic mechanism, the pressing gear telescopic mechanism comprises a telescopic rod, a connecting rod is connected between the telescopic rod and the swing rod, and the telescopic rod stretches to enable the swing rod to swing, so that the lock hook enters or leaves the bayonet. The utility model provides a pressing gear telescopic mechanism, wherein the pressing gear telescopic mechanism is pressed by a locked part to realize movement control of a lock hook, so that locking or separation of the lock hook and the locked part is controlled.

Description

Lock structure, door lock and refrigerator

Technical Field

The utility model relates to the technical field of door locks, in particular to a lock structure, a door lock and a refrigerator.

Background

The prior lock structure is mostly focused on firmness, but neglects usability, is inconvenient to apply, and mostly needs complex operation to realize opening or locking, which is inconvenient for some equipment which is often required to be opened or closed, for example, as the living standard of people is improved, the demands on big refrigerators are also improved, a large number of big-volume door-in-door refrigerators are already in high-end markets, the type of refrigerators are provided with an inner door and an outer door, a certain storage space is reserved between the outer door and the inner door for storing commonly used articles, so that the commonly used articles can be conveniently accessed by only opening the outer door, and the refrigerator is not required to be completely opened, so that more cold air leakage can be reduced. However, since the specific structure of the outer door makes it disadvantageous to provide a structure body leaking outside the door as a lock, it is required to be frequently opened and closed due to its special use scene, and it is sometimes required that a person performs opening and locking of the door while holding an article by hand, and the existing locking apparatus is also not possible.

Therefore, a lock structure that is convenient to open or lock is a technical problem to be solved in the industry.

Disclosure of Invention

In order to solve the problem that a lock can be conveniently opened or locked, the utility model provides a pressing gear telescopic mechanism, and the movement control of the lock hook is realized by pressing the pressing gear telescopic mechanism by a locked part, so that the locking or the separation of the lock hook and the locked part is controlled.

The technical scheme includes that the lock structure comprises a locked part and a locking part used for locking the locked part, wherein the locking part comprises a swing rod rotating around a fixed shaft, a lock hook is arranged on the swing rod, the lock structure further comprises a pressing gear telescopic mechanism, the pressing gear telescopic mechanism comprises a telescopic rod, a connecting rod is connected between the telescopic rod and the swing rod, the connecting rod is respectively and rotatably connected with the telescopic rod and the swing rod, the locked part is correspondingly arranged at a part of the pressing gear telescopic mechanism which is pressed, the telescopic rod is switched among different telescopic length gears by pressing the locked part on the pressing gear telescopic mechanism, a bayonet corresponding to the lock hook is arranged on the locked part, and the telescopic rod stretches to enable the swing rod to swing so as to enable the lock hook to enter or leave the bayonet.

In some embodiments, at least two swing rods are symmetrically arranged about the telescopic rod, and the connecting rod is connected between each swing rod and the telescopic rod.

In some embodiments, the locking part further comprises an outer cylinder, one end of the outer cylinder is provided with a cylinder bottom, the other end of the outer cylinder is provided with a cylinder opening into which the locked part can be inserted, one end of the swing rod is provided with a lock hook, the other end of the swing rod is rotationally connected with the cylinder bottom, the middle part of the swing rod is rotationally connected with the connecting rod, the lock hook faces the cylinder opening, and the pressing gear telescopic mechanism is positioned in the outer cylinder.

In some embodiments, the telescopic rod is telescopically and rotatably arranged in the telescopic cavity, the inner wall of the telescopic cavity is circumferentially provided with a slot, the telescopic rod is circumferentially provided with gear shaping corresponding to the slot, a clamping groove is arranged between adjacent slots, and the clamping groove and the opening edge of the slot are both provided with first inclined planes, so that the gear shaping can be axially inserted into the slot or the clamping groove along the first inclined planes; the depth of the slot is larger than that of the clamping groove; the telescopic rod comprises a telescopic rod body, a first guide tooth is circumferentially distributed at the end part of the telescopic rod body, and further comprises a push rod axially sliding in the telescopic cavity, wherein one end of the push rod body is provided with a second guide tooth capable of being meshed with the first guide tooth, the other end of the push rod body corresponds to the locked part, and a first elastic reset piece is supported between the push rod body and the telescopic cavity; the circumferential distance between the slot and the clamping groove is an integral multiple of the tooth distance between the first guide tooth or the second guide tooth, and when the gear shaping tooth is positioned in the slot, the tooth tip of the first guide tooth corresponds to the position between the tooth tip and the tooth root of the second guide tooth; the telescopic rod is controlled to reset relative to the telescopic cavity.

In some embodiments, the side wall of the ejector rod is provided with a guide bar, and the inner wall of the telescopic cavity is provided with a guide groove in sliding fit with the guide bar.

In some embodiments, the connecting rod is connected to the connecting rod by a conversion joint, the conversion joint comprises a blind hole, the end of the telescopic rod is rotatably matched in the blind hole, and the conversion joint is rotatably connected to the end of the connecting rod by a hinge.

In some embodiments, the end face of the gear shaping has a second bevel thereon in the same direction as the first bevel.

The door lock comprises the lock structure.

The refrigerator comprises the door lock.

In some embodiments, the door comprises an inner door and an outer door, the locking part is arranged on the inner door, and the locked part is arranged on the outer door.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model provides a pressing gear telescopic mechanism, which realizes the movement control of the lock hook by pressing the pressing gear telescopic mechanism by the locked part, thereby controlling the locking or the separation of the lock hook and the locked part, and being convenient to use. The refrigerator door can be realized by slightly pressing the refrigerator door in actual use, so the refrigerator door is particularly suitable for the use scene of the refrigerator door, and the lock structure is positioned between the inner door and the outer door 1, and can not be seen from the outside when the outer door is closed, so that the whole shape and structure of the refrigerator can not be damaged. The locking of door in the door is realized through pressing, so that the door lock is convenient and stable and the user experience of use can be improved.

Drawings

The present utility model will now be described in detail with reference to specific embodiments and drawings, which are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the utility model. The drawings illustrate generally, by way of example and not limitation, embodiments discussed herein. Wherein:

fig. 1 is a schematic view of a refrigerator.

Fig. 2 is a schematic view of a refrigerator opening door.

Fig. 3 is an exploded view of the door lock.

Fig. 4 is a schematic cross-sectional view in an unlocked state.

Fig. 5 is a schematic cross-sectional view in a locked state.

Fig. 6 is an exploded cross-sectional schematic view of the door lock.

Fig. 7 is a schematic diagram of an unlocking process.

Fig. 8 is a schematic diagram of a process of closing the lock.

Fig. 9 is an enlarged schematic view at a in fig. 7.

Fig. 10 is an enlarged schematic view at B in fig. 7.

In the figure, 1, an outer door; 2. a locked part; 21. a bayonet; 3. an inner door; 4. an outer cylinder; 5. a telescopic rod; 51. gear shaping; 511. a second inclined surface; 52. a first guide tooth; 6. swing rod; 61. a latch hook; 7. a connecting rod; 8. a telescopic chamber; 81. a slot; 811. a first slot bevel; 82. a clamping groove; 821. a first clamping groove inclined plane; 83. a guide groove; 9. a push rod; 91. a conducting bar; 92. a second guide tooth; 10. a first return spring; 11. a second return spring; 12. and (5) converting the section.

Detailed Description

The following are specific examples of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these examples, and the following embodiments do not limit the utility models according to the claims. Furthermore, all combinations of features described in the embodiments are not necessarily essential to the inventive solution.

The principles and structures of the present utility model are described in detail below with reference to the drawings and the examples.

Examples

As shown in fig. 1 and 2, a lock structure applied between an inner door and an outer door 1 of a refrigerator is described as an example, and the lock structure comprises a locked part 2 positioned at the inner side of the outer door 1 of the refrigerator and a locking part positioned at the outer side of the inner door 3 of the refrigerator for locking the locked part 2, the locking part of the embodiment further comprises an outer cylinder 4, one end of the outer cylinder 4 is provided with a cylinder bottom, the other end of the outer cylinder is provided with a cylinder opening into which the locked part 2 can be inserted, and the cylinder bottom of the outer cylinder 4 is fixed on the inner door 3 of the refrigerator. The locked part 2 is a cylinder.

As shown in fig. 3, 4 and 5, the device further comprises a push-position telescopic mechanism, the push-position telescopic mechanism is located in the outer cylinder 4, the push-position telescopic mechanism comprises a telescopic rod 5, a connecting rod 7 is connected between the telescopic rod 5 and the swinging rod 6, the locking part comprises swinging rods 6 rotating around a fixed shaft, at least two swinging rods 6 are symmetrically arranged about the telescopic rod 5, the embodiment is provided with an upper part and a lower part as shown in the figure, the connecting rod 7 is connected between each swinging rod 6 and the telescopic rod 5, one end of each swinging rod 6 is provided with a lock hook 61, the other end of the swinging rod 6 is rotationally connected with the cylinder bottom, the middle part of each swinging rod 6 is rotationally connected with the connecting rod 7, the lock hook 61 faces the cylinder mouth, the connecting rod 7 is respectively rotationally connected with the telescopic rod 5 and the swinging rod 6, the part to be locked 2 and the part to be pressed by the push-position of the push-position telescopic mechanism, the pressing of the locked part 2 to the pressing gear telescopic mechanism causes the telescopic rod 5 to switch among gears with different telescopic lengths, namely, the elongation of the telescopic rod 5 changes to a certain extent every time the telescopic rod 5 is pressed, so that the swinging rod 6 swings correspondingly through the connecting rod 7, and then the position of the lock hook 61 changes, the locked part 2 is provided with a bayonet 21 corresponding to the lock hook 61, the swinging rod 6 swings through the telescopic rod 5, so that the lock hook 61 enters or leaves the bayonet 21, the locking or opening of the lock can be realized through the unidirectional action of pressing, the locking mechanism is particularly suitable for the use scene of a refrigerator door when the refrigerator door is in actual use, and because the locking mechanism is positioned between the inner door 3 and the outer door 1, when the outer door 1 is closed, the lock structure is not visible from the outside, so that the overall shape structure of the refrigerator is not damaged.

As shown in fig. 6, 9 and 10, the specific structure of the gear-pressing telescopic mechanism is as follows, the telescopic rod 5 is telescopically and rotatably arranged in a telescopic cavity 8, the telescopic cavity 8 is a sleeve sleeved outside the telescopic rod 5, a plurality of slots 81 are circumferentially distributed on the inner wall of the telescopic cavity 8, the telescopic rod 5 is circumferentially provided with corresponding gear shaping slots 51 corresponding to the slots 81, a clamping groove 82 is arranged between adjacent slots 81, the clamping groove 82 and the opening edge of the slots 81 are respectively provided with a first inclined surface, and the end surface of the gear shaping 51 is provided with a second inclined surface 511 with the same inclination direction as that of the first inclined surface, so that the gear shaping 51 can be axially inserted into the slots 81 or the clamping groove 82 along the first inclined surface; the depth of the slot 81 is greater than that of the slot 82, the first inclined plane in this embodiment extends to the bottom of the slot 82, and for convenience of description, the first inclined plane is defined as the inclined plane of the first slot 82, and the inclined plane at the edge of the slot 81 is defined as the inclined plane of the first slot 81, i.e. the slot 82 looks like a triangle slot 82; the end part of the telescopic rod 5 is circumferentially provided with first guide teeth 52 and also comprises a push rod 9 which slides axially in the telescopic cavity 8, the side wall of the push rod 9 is provided with a guide bar 91, the inner wall of the telescopic cavity 8 is provided with a guide groove 83 which is in sliding fit with the guide bar 91, so that the push rod 9 can only axially move relative to the telescopic cavity 8 but can not relatively rotate, one end of the push rod 9 is provided with second guide teeth 92 which can be meshed with the first guide teeth 52, the other end of the push rod 9 corresponds to the locked part 2, so that the locked part 2 can push the push rod 9, the end part of the locked part 2 is provided with an inserting hole into which the push rod 9 can be inserted, and a first reset spring 10 is supported between the end part of the push rod 9 and the end part of the telescopic cavity 8, so that an outward reset force can be generated on the push rod 9, namely the locked part 2, and the outer door 1 can automatically spring under the reset force of the reset spring after the latch hook 61 is separated; the circumferential distance between the slot 81 and the clamping groove 82 is an integer multiple of the tooth distance between the first guide tooth 52 or the second guide tooth 92, and when the gear shaping 51 is positioned in the slot 81, the tooth tip of the first guide tooth 52 corresponds to the position between the tooth tip and the tooth root of the second guide tooth 92; the telescopic rod is characterized by further comprising a second reset spring 11 for controlling the telescopic rod 5 to reset relative to the telescopic cavity 8, the telescopic rod further comprises a conversion joint 12, the connecting rod 7 is connected with the connecting rod 7 through the conversion joint 12, the conversion joint 12 comprises a blind hole, the end part of the telescopic rod 5 is matched in the blind hole in a rotating mode, the conversion joint 12 is connected with the end part of the connecting rod 7 in a rotating mode through a hinge, and the second elastic reset piece is a spring for supporting the pushing groove in the direction of the telescopic cylinder.

As shown in fig. 7, the working principle of the push-shift telescopic mechanism is shown in fig. 7, when the push-shift telescopic mechanism is in a locking state, the gear shaping 51 is located in the slot 81, if the locked portion 2 is pushed, so that the ejector rod 9 pushes the telescopic rod 5, at this time, the tooth tip of the first guide tooth 52 corresponds to the tooth tip and the tooth root of the second guide tooth 92, when the push-shift telescopic mechanism is pushed out of the slot 81, under the action of the restoring force of the second restoring spring 11 and under the action of the guide of the second guide tooth 92, the first guide tooth 52 of the telescopic rod 5 is rotated under the guide of the second guide tooth 92, so that the first guide tooth 52 and the second guide tooth 92 are fully meshed, namely, the tooth tip of the first guide tooth 52 corresponds to the tooth root of the second guide tooth 92, the rotation of the telescopic rod 5 makes the top of the gear shaping 51 correspond to the clamping groove 82, when the push-shift telescopic rod 51 is pushed out of the slot 81, under the action of the restoring force of the second inclined plane 511, and under the action of the guide of the second inclined plane 92, the first inclined plane 82 and the position of the telescopic rod 82 are also kept away from the first inclined plane 82, so that the telescopic rod 5 is released, and the position of the telescopic rod 5 is naturally released, and the position of the push rod 5 is kept away from the inclined plane 1, so that the position of the sliding rod 1 is kept by the locking hook 1, and the position of the sliding rod is released. When the gear shaping 51 enters the clamping groove 82, the telescopic rod 5 rotates relative to the telescopic cavity 8 due to the guiding action of the first inclined plane, namely, the telescopic rod rotates by a certain angle, and the circumferential distance between the slot 81 and the clamping groove 82 is an integral multiple of the tooth distance between the first guiding tooth 52 or the second guiding tooth 92, so that the tooth tip of the first guiding tooth 52 corresponds to the position between the tooth tip and the tooth root of the second guiding tooth 92.

As shown in fig. 8, when the door is closed, as long as the outer door 1 is pushed toward the inner door 3, the push rod 9 pushes the telescopic rod 5, when the push rod 51 is pushed out of the clamping groove 82, under the action of the restoring force of the second restoring spring 11 and under the guiding action of the second guiding teeth 92, the first guiding teeth 52 of the telescopic rod 5 are rotated under the guiding action of the second guiding teeth 92 due to the limitation of the clamping groove 82, so that the first guiding teeth 52 are fully meshed with the second guiding teeth 92, that is, the tooth tip of the first guiding teeth 52 corresponds to the tooth root of the second guiding teeth 92, the rotation of the telescopic rod 5 causes the top of the push rod 51 to correspond to the clamping groove 82, that is, the second inclined surface 511 corresponds to the inclined surface of the first slot 81 along which the opening of the slot 81, so that the push rod 51 is clamped into the slot 81 under the guiding action of the two inclined surfaces, and as the slot 81 is deeper, the swing rod 61 is further moved forward, so that the swing rod 61 is locked into the bayonet lock 21.

A door lock comprising any one of the lock structures described above.

The refrigerator comprises the door lock. The refrigerator comprises an inner door and an outer door, the locking part is arranged on the inner door 3, and the locked part 2 is arranged on the outer door 1.

Some terms are used more herein, but the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model. The order of execution of the operations, steps, and the like in the apparatuses and methods shown in the specification and the drawings may be any order as long as the order is not particularly limited, and the output of the preceding process is not used in the following process. The use of similar ordinal terms (e.g., "first," "then," "second," "again," "then," etc.) for convenience of description does not necessarily imply that they are necessarily performed in such order.

It will be appreciated by those of ordinary skill in the art that all directional references (e.g., above, below, upward, downward, top, bottom, left, right, vertical, horizontal, etc.) are descriptive of the drawings to aid the reader in understanding, and do not denote (e.g., position, orientation, use, etc.) limitation of the scope of the utility model defined by the appended claims, only for convenience of description and simplicity of description, and unless otherwise indicated, these orientation terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, the orientation terms "inside, outside" referring to the inside and outside of the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Additionally, some ambiguous terms (e.g., substantially, certain, generally, etc.) may refer to slight imprecision or slight deviation of conditions, amounts, values, or dimensions, etc., some of which are within manufacturing tolerances or tolerances. It should be noted that, the terms "first," "second," and the like are used for defining the components, and are merely for convenience in distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, so they should not be construed as limiting the scope of the present application.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims (10)

1. The locking structure comprises a locked part and a locking part used for locking the locked part, and is characterized in that the locking part comprises a swinging rod rotating around a fixed shaft, a lock hook is arranged on the swinging rod, the locking structure further comprises a pressing gear telescopic mechanism, the pressing gear telescopic mechanism comprises a telescopic rod, a connecting rod is connected between the telescopic rod and the swinging rod, the connecting rod is respectively and rotatably connected with the telescopic rod and the swinging rod, the part of the locked part, which is pressed by the pressing gear telescopic mechanism, is correspondingly arranged, the locked part is pressed by the pressing gear telescopic mechanism so that the telescopic rod is switched among different telescopic length gears, a bayonet corresponding to the lock hook is arranged on the locked part, and the swinging rod swings due to the telescopic action of the telescopic rod, so that the lock hook enters or leaves the bayonet.

2. The lock structure according to claim 1, wherein at least two of the swing arms are symmetrically disposed with respect to the telescopic link, and the link is connected between each swing arm and the telescopic link.

3. The lock structure according to claim 1, wherein the locking portion further comprises an outer cylinder, one end of the outer cylinder is provided with a cylinder bottom, the other end of the outer cylinder is provided with a cylinder opening into which the locked portion can be inserted, one end of the swing rod is provided with a lock hook, the other end of the swing rod is rotatably connected with the cylinder bottom, the middle part of the swing rod is rotatably connected with the connecting rod, the lock hook faces the cylinder opening, and the pressing gear telescopic mechanism is located in the outer cylinder.

4. The lock structure according to claim 1, 2 or 3, wherein the telescopic rod is telescopically and rotatably arranged in a telescopic cavity, a slot is circumferentially arranged on the inner wall of the telescopic cavity, a gear shaping corresponding to the slot is circumferentially arranged on the telescopic rod, a clamping groove is arranged between adjacent slots, and first inclined surfaces are arranged on the clamping groove and the opening edge of the slot, so that the gear shaping can be axially inserted into the slot or the clamping groove along the first inclined surfaces; the depth of the slot is larger than that of the clamping groove; the telescopic rod comprises a telescopic rod body, a first guide tooth is circumferentially distributed at the end part of the telescopic rod body, and further comprises a push rod axially sliding in the telescopic cavity, wherein one end of the push rod body is provided with a second guide tooth capable of being meshed with the first guide tooth, the other end of the push rod body corresponds to the locked part, and a first elastic reset piece is supported between the push rod body and the telescopic cavity; the circumferential distance between the slot and the clamping groove is an integral multiple of the tooth distance between the first guide tooth or the second guide tooth, and when the gear shaping tooth is positioned in the slot, the tooth tip of the first guide tooth corresponds to the position between the tooth tip and the tooth root of the second guide tooth; the telescopic rod is controlled to reset relative to the telescopic cavity.

5. The lock structure according to claim 4, wherein the side wall of the push rod is provided with a guide bar, and the inner wall of the telescopic cavity is provided with a guide groove in sliding fit with the guide bar.

6. The lock structure according to claim 4, wherein the link is connected to the link by a transition joint, the transition joint including a blind bore in which the end of the telescoping rod is rotatably fitted, the transition joint being rotatably connected to the link end by a hinge.

7. The lock structure according to claim 4, wherein the end face of the gear shaping has a second inclined surface having the same inclination direction as the first inclined surface.

8. Door lock, characterized by comprising a lock structure according to any of claims 1 to 7.

9. A refrigerator including the door lock of claim 8.

10. The refrigerator of claim 9, comprising an inner door and an outer door, wherein the locking portion is provided on the inner door, and the locked portion is provided on the outer door.

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