CN116771764A

CN116771764A - Self-locking device and vehicle

Info

Publication number: CN116771764A
Application number: CN202210216563.9A
Authority: CN
Inventors: 曹阳
Original assignee: Beijing Chehejia Automobile Technology Co Ltd
Current assignee: Beijing Chehejia Automobile Technology Co Ltd
Priority date: 2022-03-07
Filing date: 2022-03-07
Publication date: 2023-09-19
Also published as: WO2023169309A1

Abstract

The invention discloses a self-locking device and a vehicle, wherein the self-locking device comprises a base, a movable part, a locking part and an elastic part, the base is provided with a mounting cavity, the base is provided with a matching hole communicated with the mounting cavity and the outside, the movable part, the locking part and the elastic part are all positioned in the mounting cavity, the movable part is movably connected with the base, the surface of the mounting cavity comprises a first guide surface, the locking part is limited between the movable part and the first guide surface and is provided with an unlocking position and a locking position, the elastic part is connected with the movable part and the base, and the direction of the acting force given by the elastic part to the movable part is consistent with the moving direction of the movable part. The self-locking device provided by the invention has the advantages of simplicity in installation and high appearance attractiveness.

Description

Self-locking device and vehicle

Technical Field

The invention relates to the technical field of self-locking equipment, in particular to a self-locking device and a vehicle.

Background

In the related art, the interior parts of the automobile are generally installed through screws or bolts, and in order to ensure attractive appearance, a plurality of parts are additionally arranged to shield the exposed screws or bolts, so that the defect of complicated product installation is overcome.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems in the related art to some extent.

Therefore, the embodiment of the invention provides a self-locking device which has the advantages of simple installation and high appearance attractiveness.

The embodiment of the invention also provides a vehicle.

The self-locking device comprises a base, a movable piece, a locking piece and an elastic piece, wherein the base is provided with an installation cavity, and the base is provided with a matching hole communicated with the installation cavity and the outside; the movable piece, the locking piece and the elastic piece are all located in the installation cavity, the movable piece is movably connected with the base, the surface of the installation cavity comprises a first guide surface, the locking piece is limited between the movable piece and the first guide surface and is provided with an unlocking position and a locking position, the elastic piece is connected with the movable piece and the base, and the direction of the acting force given to the movable piece by the elastic piece is consistent with the moving direction of the movable piece.

According to the self-locking device provided by the embodiment of the invention, the movable part always pushes the locking part to the locking position under the driving of the elastic part, and at the moment, the external connecting part is inserted into the mounting cavity through the matching hole to realize the connection with the locking part, so that the connection between the connecting part and the base is realized. Therefore, the connection between the connecting piece and the base can be realized without screws or bolts, the outer surface of the base is not required to be additionally provided with parts for shielding the screws or bolts, the appearance is attractive, and the product installation is simple and convenient.

In some embodiments, the moveable member is slidably coupled to the base in a first direction, the first guide surface extending in a second direction, the second direction being at an angle to the first direction.

In some embodiments, the locking member is a cylindrical self-locking shaft, the self-locking shaft is in rolling fit with the first guide surface, the self-locking device further comprises an unlocking member, the unlocking member is movably connected with the base, the unlocking member is in transmission connection with the movable member, and the direction of the acting force given to the movable member by the unlocking member is opposite to the direction of the acting force given to the movable member by the elastic member.

In some embodiments, the self-locking device further includes a cylindrical first magnet and a pulling piece connected to the first magnet, the first magnet is located in the installation cavity and is pivotally connected to the base, a pivot axis and a central axis of the first magnet coincide, the pulling piece protrudes out of an outer peripheral surface of the first magnet, a rotation track of the pulling piece intersects with a sliding track of the movable member, and the unlocking member includes a second magnet, and the second magnet can be in spaced attraction with the first magnet and control the first magnet to rotate.

In some embodiments, the self-locking device further comprises a cylindrical first magnet and a worm coaxially connected with the first magnet, the first magnet is located in the installation cavity and is pivotally connected with the base, a pivot axis and a central axis of the first magnet coincide, an axial direction of the first magnet coincides with the first direction, worm gear teeth are arranged on the movable member, the worm is matched with the worm gear teeth, the unlocking member comprises a second magnet, and the second magnet can be in spaced-apart suction with the first magnet and control the first magnet to rotate.

In some embodiments, the base is provided with an unlocking hole opposite to the movable part, the unlocking hole is a slot-shaped long hole, the unlocking part is an unlocking piece matched with the unlocking hole, and the unlocking part can pass through the unlocking hole and push the movable part to slide reversely along the first direction.

In some embodiments, the self-locking device further comprises a connecting piece, the base is provided with a matching hole communicated with the installation cavity and the outside, the connecting piece comprises a locking part matched with the matching hole, the locking part is provided with a limiting surface, and the limiting surface can be opposite to the first guiding surface, so that the locking piece is clamped between the limiting surface and the first guiding surface.

In some embodiments, the moveable member includes a stop for preventing the locking member from exiting the first guide surface, the locking member being capable of abutting the stop so that at least a portion of the locking member intersects a path of movement of the locking member within the mounting cavity.

In some embodiments, the elastic member includes a spring, one end of the spring is connected to the movable member, the other end of the spring is connected to the base, an axial direction of the spring is consistent with the first direction, the base includes a housing provided with an opening for the movable member, the locking member, and the elastic member to come in and go out, and a bottom plate detachably connected to the housing and closing the opening.

A vehicle according to an embodiment of the invention comprises a self-locking device according to any of the embodiments described above.

The technical advantages of the vehicle according to the embodiment of the invention are the same as those of the self-locking device described above, and will not be repeated here.

Drawings

Fig. 1 is a front view of a self-locking device according to an embodiment of the present invention.

Fig. 2 is an isometric view of a self-locking device according to an embodiment of the present invention.

Fig. 3 is another isometric view of a self-locking device according to an embodiment of the present invention.

Reference numerals:

100. a self-locking device; 1. a base; 11. a housing; 12. a bottom plate; 13. a first guide surface; 2. a connecting piece; 21. a locking part; 211. a limiting surface; 212. a second guide surface; 3. a movable member; 31. a stop portion; 4. a locking member; 5. an elastic member; 6. a first magnet; 7. a pulling piece; 8. a worm; 9. worm gear teeth.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

A self-locking device 100 according to an embodiment of the present invention is described below with reference to fig. 1-3.

As shown in fig. 1, the self-locking device 100 according to the embodiment of the present invention includes a base 1, a movable member 3, a locking member 4, and an elastic member 5. The base 1 has a mounting cavity, and the base 1 has a fitting hole communicating the mounting cavity with the outside. Wherein the external connecting member 2 such as an interior trim part can pass through the fitting hole so as to be connected with the locking member 4.

The movable part 3, the locking part 4 and the elastic part 5 are all positioned in the installation cavity, the movable part 3 is movably connected with the base 1, the surface of the installation cavity comprises a first guide surface 13, and the locking part 4 is limited between the movable part 3 and the first guide surface 13 and has an unlocking position and a locking position. Specifically, the moving direction of the movable member 3 is at an angle to the first guide surface 13, and when the movable member 3 moves, the locking member 4 can be pushed to move along the first guide surface 13 between the unlocking position and the locking position.

The elastic member 5 connects the movable member 3 and the base 1, and the direction of the urging force of the elastic member 5 to the movable member 3 coincides with the moving direction of the movable member 3. I.e. the elastic member 5 gives the movable member 3 a driving force that urges the locking member 4 from the unlocking position to the locking position. Under the compression of the elastic member 5, the locking member 4 is normally located at the locking position to achieve locking of the external connection member 2. At the same time, the locking member 3 can be switched to the unlocking position, so that the external connecting member 2 is unlocked and disengaged.

According to the self-locking device 100 of the embodiment of the invention, under the driving of the elastic piece 5, the movable piece 3 always pushes the locking piece 4 to the locking position, at this time, the external connecting piece 2 is inserted into the installation cavity through the matching hole to realize the connection with the locking piece 4, and then the connection between the connecting piece 2 and the base 1 is realized. Therefore, the connecting piece 2 can be connected with the base 1 without screws or bolts, parts playing a role of shielding the screws or bolts are not needed to be additionally arranged on the outer surface of the base 1, the appearance is attractive, and the product installation is simple and convenient.

In some embodiments, the moveable member 3 is slidably coupled to the base 1 in a first direction, and the first guide surface 13 extends in a second direction that is angled with respect to the first direction. As shown in fig. 1, the first direction is a vertical direction, and the first guide surface 13 is a slope forming an acute angle with the first direction. The elastic member 5 presses the slider 3 in the forward direction of the first direction so that the locking member 4 can move in the second direction and lock the connection member 2 located in the installation cavity, and the locking member 4 can move in the reverse direction and be spaced apart from the connection member 2 located in the installation cavity.

In some embodiments, the self-locking device 100 further includes an unlocking member movably connected to the base 1, the unlocking member is in driving connection with the movable member 3, and a direction of a force applied to the movable member 3 by the unlocking member is opposite to a direction of a force applied to the movable member 3 by the elastic member 5. I.e. the unlocking member gives the movable member 3 a driving force that urges the locking member 4 from the locking position to the unlocking position. The unlocking member can press the movable member 3 in a direction opposite to the first direction to facilitate the separation of the locking member 4 from the connecting member 2. The movable piece 3 can be driven to reversely slide through the unlocking piece, so that the locking piece 4 is separated from the connecting piece 2, and therefore the connecting piece 2 is detached, and the connecting piece 2 is convenient to maintain and replace.

In some embodiments, as shown in fig. 1 and 2, the self-locking device 100 further includes a cylindrical first magnet 6 and a paddle 7 connected to the first magnet 6, the first magnet 6 being located in the mounting cavity and pivotally connected to the base 1, the pivot axis and the central axis of the first magnet 6 coinciding, the axial direction of the first magnet 6 being perpendicular to the first direction. The poking piece 7 protrudes out of the outer peripheral surface of the first magnet 6, the rotation track of the poking piece 7 is intersected with the sliding track of the movable piece 3, the unlocking piece comprises a second magnet, and the second magnet can be in spaced attraction with the first magnet 6 and control the first magnet 6 to rotate.

After the second magnet and the first magnet 6 are in spaced attraction, the second magnet rotates around the rotation axis of the first magnet 6, and can drive the pulling piece 7 to rotate and press the movable piece 3 downwards, so that the upward compression of the movable piece 3 on the locking piece 4 is relieved, and the locking piece 4 can be separated from the locking part 21 under the self gravity or the interference of the locking part 21 of the connecting piece 2 (such as shaking the connecting piece 2 along the axial direction of the matching hole in a small amplitude), thereby realizing the separation of the connecting piece 2 and the base 1. Wherein, realize the unblock through magnet separate the blank actuation, second magnet and plectrum 7 that are used for the unblock are all hidden in the installation intracavity, have guaranteed the appearance aesthetic measure of self-locking device 100.

In some embodiments, as shown in fig. 3, the self-locking device 100 further includes a cylindrical first magnet 6 and a worm 8 coaxially connected to the first magnet 6, the first magnet 6 being located in the mounting cavity and pivotably connected to the base 1, the pivot axis and the central axis of the first magnet 6 coinciding, the axial direction of the first magnet 6 coinciding with the first direction. The movable part 3 is provided with worm gear teeth 9, the worm gear teeth 9 are single teeth, and the worm 8 is matched with the worm gear teeth 9. The unlocking piece comprises a second magnet which can be in spaced attraction with the first magnet 6 and control the first magnet 6 to rotate. Namely, through the spaced attraction of the magnet and the cooperation of the worm 8 and the worm gear 9, the movable piece 3 can be driven to move downwards so as to separate the connecting piece 2 from the base 1.

In some embodiments, the base 1 is provided with an unlocking hole opposite to the movable member 3, and the unlocking member can pass through the unlocking hole and push the movable member 3 to slide reversely along the first direction.

Specifically, the unlocking hole can be a slot-shaped long hole, and the unlocking piece is an unlocking piece matched with the unlocking hole. The unlocking piece passes through the unlocking hole and then directly pushes the movable piece 3 to move downwards so as to separate the connecting piece 2 from the base 1.

Or, the unlocking hole can also be a round hole, and the unlocking hole is a round rod which is matched with the round hole, so that the unlocking function can be realized.

In some embodiments, the locking member 4 is a cylindrical self-locking shaft that is in rolling engagement with the first guide surface 13.

Therefore, under the pushing of the movable member 3 or the pushing of the locking portion 21 of the connecting member 2, the self-locking shaft can easily and laborsaving realize the reciprocating movement in the second direction in a rolling manner, that is, the moving friction force of the self-locking shaft is smaller, so that the unlocking operation is more sensitive when the unlocking is realized through the magnet, and the use reliability of the self-locking device 100 is improved.

In some embodiments, as shown in fig. 1, the self-locking device further includes a connecting piece 2, the base 1 has a mating hole that communicates with the mounting cavity and the outside, the connecting piece 2 includes a locking portion 21 that mates with the mating hole, a limiting surface 211 is provided on the locking portion 21, and the limiting surface 211 can be opposite to the first guiding surface 13, so that the locking piece 4 is sandwiched between the limiting surface 211 and the first guiding surface 13.

That is, when the self-locking shaft is located at the locking position, the first guiding surface 13 and the locking member 4 always prevent the locking portion 21 of the connecting member 2 from being separated from the matching hole, so as to ensure the connection strength of the connecting member 2 and the base 1.

Specifically, a protrusion is disposed on one side of the locking portion 21 facing the locking member 4, the limiting surface 211 is disposed on an upper edge of the protrusion, a second guiding surface 212 is disposed on a lower edge of the protrusion, when the locking portion 21 extends downward into the mounting cavity, the second guiding surface 212 contacts with the locking member 4 first, the locking member 4 rolls reversely in the second direction under the guiding of the second guiding surface 212 until the top surface of the protrusion located between the limiting surface 211 and the second guiding surface 212 abuts against the locking member 4, and the locking member 4 stops rolling. As the locking part 21 continues to move downward, the locking part 4 contacts the limiting surface 211 and rolls in the forward direction along the second direction until the locking part 21 of the connecting part 2 moves to the set position, the locking part 4 is limited between the limiting surface 211 and the first guiding surface 13, and the locking part 21 and the locking part 4 are clamped.

In some embodiments, as shown in fig. 2 and 3, the movable member 3 includes a stop 31 for preventing the locking member 4 from being separated from the first guide surface 13, and the locking member 4 can abut against the stop 31 so that at least part of the locking member 4 intersects with a movement track of the locking member 21 in the installation cavity. That is, when the locking member 4 abuts against the stopper 31, at least part of the locking member 4 intersects with the movement locus of the locking portion 21 in the installation cavity. The stopper 31 restricts the volume of the locking member 4 entering the mating hole area, avoids the uppermost edge of the locking member 4 being located in the mating hole area, and ensures that the locking portion 21 of the connecting member 2 can accurately push the locking member 4 to roll reversely along the second direction when extending into the mounting cavity.

In some embodiments, the elastic member 5 comprises a spring, one end of which is connected to the movable member 3, and the other end of which is connected to the base 1, the axial direction of the spring being coincident with the first direction.

As shown in fig. 2, the number of springs is two, and the two springs simultaneously support the movable member 3 upward, thereby ensuring stable support of the movable member 3 to the locking member 4.

In some embodiments, the base 1 includes a housing 11 and a bottom plate 12, the housing 11 is provided with an opening for the movable member 3, the locking member 4, and the elastic member 5 to go in and out, and the bottom plate 12 is detachably connected to the housing 11 and closes the opening. Whereby the movable member 3, the locking member 4 and the elastic member 5 are easily assembled and disassembled in the base 1.

A vehicle according to an embodiment of the present invention includes the self-locking device 100 of any of the embodiments described above.

Technical advantages of the vehicle according to the embodiment of the present invention are the same as those of the self-locking device 100 described above, and will not be described again here.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims

1. A self-locking device, comprising:

the base is provided with a mounting cavity, and is provided with a matching hole communicated with the mounting cavity and the outside; and

the movable piece, the retaining member with the elastic member is located in the installation cavity, the movable piece with the base movably links to each other, the surface in installation cavity includes first guide surface, the retaining member is limited to be located the movable piece with between the first guide surface and have unblock position and locking position, the elastic member is connected the movable piece with the base, the elastic member gives the direction of force of movable piece with the direction of movement of movable piece is unanimous.

2. A self-locking device as recited in claim 1, wherein the moveable member is slidably coupled to the base in a first direction, the first guide surface extending in a second direction, the second direction being at an angle to the first direction.

3. A self-locking device according to claim 2, wherein the locking member is a cylindrical self-locking shaft, the self-locking shaft is in rolling fit with the first guide surface, the self-locking device further comprises an unlocking member movably connected with the base, the unlocking member is in transmission connection with the movable member, and the direction of the force applied to the movable member by the unlocking member is opposite to the direction of the force applied to the movable member by the elastic member.

4. A self-locking device according to claim 3, further comprising a cylindrical first magnet and a pulling piece connected with the first magnet, wherein the first magnet is located in the installation cavity and is pivotally connected with the base, a pivot axis and a central axis of the first magnet coincide, the pulling piece protrudes out of the outer peripheral surface of the first magnet, a rotation track of the pulling piece intersects with a sliding track of the movable piece, and the unlocking piece comprises a second magnet which can be in spaced suction with the first magnet and control the rotation of the first magnet.

5. A self-locking device according to claim 3, further comprising a cylindrical first magnet and a worm coaxially connected to the first magnet, the first magnet being located in the mounting cavity and pivotably connected to the base, the pivot axis and the central axis of the first magnet coinciding, the first magnet being axially aligned with the first direction, the movable member being provided with worm teeth, the worm being engaged with the worm teeth, the unlocking member comprising a second magnet capable of being positively attracted to the first magnet and controlling rotation of the first magnet.

6. A self-locking device according to claim 3, wherein the base is provided with an unlocking hole opposite to the movable member, the unlocking hole is a slot-shaped long hole, the unlocking member is an unlocking piece matched with the unlocking hole, and the unlocking member can pass through the unlocking hole and push the movable member to slide along the first direction.

7. The self-locking device according to claim 6, further comprising a connecting member, wherein the base has a fitting hole communicating the installation cavity and the outside, the connecting member includes a locking portion fitted to the fitting hole, a limiting surface is provided on the locking portion, the limiting surface can be opposite to the first guiding surface, and the locking member is sandwiched between the limiting surface and the first guiding surface.

8. A self-locking device as recited in claim 7, wherein the moveable member includes a stop for preventing the locking member from being disengaged from the first guide surface, the locking member being capable of abutment with the stop, at least a portion of the locking member intersecting a path of movement of the locking member within the mounting cavity.

9. A self-locking device according to claim 2, wherein said elastic member comprises a spring, one end of said spring is connected to said movable member, the other end of said spring is connected to said base, the axial direction of said spring coincides with said first direction, said base comprises a housing provided with an opening for the access of said movable member, said locking member and said elastic member, and a bottom plate detachably connected to said housing and closing said opening.

10. A vehicle comprising a self-locking device according to any one of claims 1 to 9.