WO2023169309A1

WO2023169309A1 - Self-locking apparatus and vehicle

Info

Publication number: WO2023169309A1
Application number: PCT/CN2023/079398
Authority: WO
Inventors: 曹阳
Original assignee: 北京车和家汽车科技有限公司
Priority date: 2022-03-07
Filing date: 2023-03-02
Publication date: 2023-09-14
Also published as: CN116771764A

Abstract

Disclosed are a self-locking apparatus and a vehicle. The self-locking apparatus comprises a base, a movable piece, a locking piece, and an elastic piece; the base has an installation cavity, and the base has a fitting hole that establishes communication between 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 to the base; a surface of the installation cavity comprises a first guide face; the locking piece is limited between the movable piece and the first guide face and has an unlocked position and a locked position; the elastic piece is connected to the movable piece and the base, and a direction of an acting force on the movable piece by the elastic piece is uniform with a direction of movement of the movable piece.

Description

Self-locking devices and vehicles

Cross-references to related applications

This application is filed based on a Chinese patent application with application number 202210216563.9 and a filing date of March 7, 2022, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated into this application as a reference.

Technical field

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

Background technique

In the related art, automobile interior parts are generally installed through screws or bolts, and in order to ensure the appearance, multiple additional parts need to be provided to cover the exposed screws or bolts, which leads to the defect that product installation is cumbersome.

Contents of the invention

The present disclosure aims to solve one of the technical problems in the related art, at least to a certain extent.

To this end, embodiments of the present disclosure propose a self-locking device that is simple to install and has a high aesthetic appearance.

An embodiment of the present disclosure also provides a vehicle.

The self-locking device according to an embodiment of the present disclosure includes a base, a movable part, a locking part and an elastic part, the base has an installation cavity, the base has a mating hole connecting the installation cavity and the outside world; The movable part, the locking part and the elastic part are all located in the installation cavity, the movable part is movably connected to the base, the surface of the installation cavity includes a first guide surface, and the lock The tightening piece is limited between the movable piece and the first guide surface and has an unlocking position and a locking position. The elastic piece connects the movable piece and the base, and the elastic piece gives the movable piece The direction of the force is consistent with the moving direction of the movable part.

According to the self-locking device of the embodiment of the present disclosure, driven by the elastic member, the movable member often pushes the locking member to the locking position. At this time, the external connecting member is inserted into the installation cavity through the mating hole to achieve locking. The fasteners are connected to realize the connection between the connecting parts and the base. As a result, no screws or bolts are needed to connect the connecting piece to the base. There is no need to install additional parts on the outer surface of the base to cover the screws or bolts. The appearance is beautiful and the product is simple and convenient to install.

In some embodiments, the movable component is slidably connected to the base along a first direction, the first guide surface extends along a second direction, and the second direction is at an angle with the first direction.

In some embodiments, the locking member is a cylindrical self-locking shaft, and the self-locking shaft is in rolling fit with the first guide surface. The self-locking device further includes an unlocking member, and the unlocking member is in contact with the first guide surface. The base is movably connected, the unlocking piece is drivingly connected to the movable piece, and the direction of the force given by the unlocking piece to the movable piece is the same as the direction of the force given by the elastic piece to the movable piece. on the contrary.

In some embodiments, the self-locking device further includes a cylindrical first magnet and is connected to the first magnet. a paddle, the first magnet is located in the installation cavity and is pivotally connected to the base, the pivot axis of the first magnet coincides with the central axis, and the paddle protrudes from the On the outer circumferential surface of the first magnet, the rotation trajectory of the paddle intersects with the sliding trajectory of the movable member. The unlocking member includes a second magnet. The second magnet can attract and control the first magnet at a distance. The first magnet rotates.

In some embodiments, the self-locking device further includes a cylindrical first magnet and a worm coaxially connected to the first magnet. The first magnet is located in the installation cavity and connected to the base. Pivotably connected, the pivot axis of the first magnet coincides with the central axis, the axial direction of the first magnet is consistent with the first direction, the movable part is provided with worm gear teeth, and the worm is connected to the first magnet. The worm gear teeth cooperate with each other, and the unlocking member includes a second magnet. The second magnet can attract the first magnet at a distance and control the rotation of the first magnet.

In some embodiments, the base is provided with an unlocking hole opposite to the movable part, and the unlocking part can pass through the unlocking hole and push the movable part to slide in reverse in the first direction. .

In some embodiments, the unlocking hole is a slot-shaped long hole, and the unlocking piece is an unlocking piece that cooperates with the unlocking hole.

In some embodiments, the unlocking hole is a round hole, and the unlocking member is a round rod that matches the round hole.

In some embodiments, the self-locking device further includes a connecting piece, the base has a fitting hole that communicates the installation cavity and the outside world, and the connecting piece includes a locking part that matches the fitting hole, so The locking part is provided with a limiting surface, and the limiting surface can be opposite to the first guide surface, so that the locking piece is sandwiched between the limiting surface and the first guide surface.

In some embodiments, the locking portion is provided with a protrusion on one side facing the locking piece, the limiting surface is provided on the upper edge of the protrusion, and the lower edge of the protrusion is provided with a third protrusion. Two guide surfaces.

In some embodiments, the movable member includes a stopper for preventing the locking member from escaping from the first guide surface, and the locking member can abut against the stopper so as to facilitate the At least part of the locking piece intersects with the movement trajectory of the locking portion in the installation cavity.

In some embodiments, the stop portion is used to constrain the volume of the locking member when it enters the mating hole area, and to push the locking member along the second direction when the locking portion extends into the installation cavity. direction of reverse scrolling.

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, and the axial direction of the spring is in the first direction. consistent.

In some embodiments, the base includes a shell and a bottom plate. The shell is provided with openings for the movable part, the locking part and the elastic part to enter and exit. The bottom plate is connected to the shell. Removably connects and closes the opening.

A vehicle according to an embodiment of the present disclosure includes a self-locking device as described in any of the above embodiments.

The technical advantages of the vehicle according to the embodiment of the present disclosure are the same as the technical advantages of the above-mentioned self-locking device, and will not be described again here.

Description of the drawings

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

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

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

Reference signs:
100. Self-locking device; 1. Base; 11. Housing; 12. Bottom plate; 13. First guide surface; 2. Connector;
21. Locking part; 211. Limiting surface; 212. Second guide surface; 3. Movable part; 31. Stopper part; 4. Locking part; 5. Elastic part; 6. First magnet; 7. Dial piece; 8. worm; 9. worm gear teeth.

Detailed ways

The embodiments of the present disclosure are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present disclosure and are not to be construed as limitations of the present disclosure.

The self-locking device 100 according to an embodiment of the present disclosure is described below with reference to FIGS. 1-3 .

As shown in FIGS. 1 to 3 , a self-locking device 100 according to an embodiment of the present disclosure includes a base 1 , a movable part 3 , a locking part 4 and an elastic part 5 . The base 1 has an installation cavity, and the base 1 has a mating hole that communicates the installation cavity with the outside world. Among them, the connecting parts 2 such as external interior parts can pass through the matching holes to facilitate connection with the locking part 4 .

The movable part 3, the locking part 4 and the elastic part 5 are all located in the installation cavity. The movable part 3 is movably connected to the base 1. The surface of the installation cavity includes a first guide surface 13. The locking part 4 is limited to the movable part 3. and the first guide surface 13 and has an unlocking position and a locking position. In some embodiments, the moving direction of the movable member 3 is at an angle to the first guide surface 13. 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 force exerted by the elastic member 5 on the movable member 3 is consistent with the moving direction of the movable member 3 . That is, the elastic member 5 gives the movable member 3 a driving force to push the locking member 4 from the unlocking position to the locking position. Under the pressure of the elastic member 5, the locking member 4 is always in the locking position to lock the external connecting member 2. At the same time, the locking member 3 can be switched to the unlocking position to facilitate the unlocking and disengagement of the external connecting member 2 .

According to the self-locking device 100 of the embodiment of the present disclosure, driven by the elastic member 5, the movable member 3 often pushes the locking member 4 to the locking position. At this time, the external connecting member 2 is inserted into the installation cavity through the mating hole. Then the connection with the locking part 4 can be realized, and then the connection between the connecting part 2 and the base 1 can be realized. As a result, no screws or bolts are needed to connect the connector 2 to the base 1. There is no need to install additional parts on the outer surface of the base 1 to cover the screws or bolts. The appearance is beautiful and the product is simple and convenient to install. .

In some embodiments, the movable member 3 is slidably connected to the base 1 along a first direction, the first guide surface 13 extends along a second direction, and the second direction is at an angle with the first direction. As shown in FIG. 1 , the first direction is a vertical direction, and the first guide surface 13 is an inclined surface forming an acute angle with the first direction. The elastic member 5 presses the sliding member 3 forward in the first direction so that the locking member 4 can move in the second direction and lock the connecting member 2 located in the installation cavity, and the locking member 4 can move reversely in the second direction. And spaced apart from the connector 2 located in the installation cavity.

In some embodiments, the self-locking device 100 further includes an unlocking member, which is movably connected to the base 1 , and is drivingly connected to the movable member 3 . The direction of the force exerted by the unlocking member on the movable member 3 is consistent with the elastic member. 5 The direction of the force given to the movable part 3 is opposite. That is, the unlocking component gives the movable component 3 a driving force to push the locking component 4 from the locking position to the unlocking position. The unlocking part can press the movable part 3 in the reverse direction of the first direction so that the locking part 4 is separated from the connecting part 2. Leave. That is, the unlocking member can be used to drive the movable member 3 to slide in the reverse direction, so that the locking member 4 is separated from the connector 2, thereby realizing the disassembly of the connector 2 and facilitating the maintenance and replacement of the connector 2.

In some embodiments, as shown in Figures 1 and 2, the self-locking device 100 also includes a cylindrical first magnet 6 and a paddle 7 connected to the first magnet 6. The first magnet 6 is located in the installation cavity and Pivotably connected to the base 1 , the pivot axis of the first magnet 6 coincides with the central axis, and the axial direction of the first magnet 6 is perpendicular to the first direction. The paddle 7 protrudes from the outer peripheral surface of the first magnet 6, and the rotation track of the paddle 7 intersects the sliding track of the movable part 3. The unlocking member includes a second magnet, and the second magnet can attract and control the first magnet 6 through air. The first magnet 6 rotates.

After the second magnet and the first magnet 6 are attracted together through air, the second magnet is rotated around the rotation axis of the first magnet 6. The second magnet can drive the paddle 7 to rotate and press the movable part 3 downward, thereby releasing the movable part 3. By pressing the locking member 4 upward, the locking member 4 can disengage from the locking portion 21 due to its own gravity or the interference of the locking portion 21 of the connector 2 (such as a small rocking of the connector 2 along the axial direction of the fitting hole). This achieves the separation of the connecting piece 2 from the base 1 . Among them, unlocking is achieved by attracting magnets in the air, and the second magnet and paddle 7 used for unlocking are hidden in the installation cavity, ensuring the aesthetic appearance of the self-locking device 100.

In some embodiments, as shown in Figure 3, the self-locking device 100 also includes a cylindrical first magnet 6 and a worm 8 coaxially connected to the first magnet 6. The first magnet 6 is located in the installation cavity and connected with the base. The base 1 is pivotally connected, the pivot axis of the first magnet 6 coincides with the central axis, and the axial direction of the first magnet 6 is consistent with the first direction. The movable part 3 is provided with a worm gear tooth 9, which is a single tooth, and the worm 8 cooperates with the worm gear tooth 9. The unlocking member includes a second magnet. The second magnet can attract the first magnet 6 through air and control the rotation of the first magnet 6 . That is, through the air-to-air attraction of the magnet and the cooperation between the worm 8 and the worm gear teeth 9 , the movable part 3 can also be driven to move downward to realize the separation of the connecting part 2 from the base 1 .

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

In some embodiments, the unlocking hole may be a slot-shaped long hole, and the unlocking piece may be an unlocking piece that cooperates with the unlocking hole. After the unlocking piece passes through the unlocking hole, it directly pushes the movable piece 3 downward to separate the connecting piece 2 from the base 1 .

In some embodiments, the unlocking hole can also be a round hole, and the unlocking member is a round rod matching the round hole, which can also achieve the above unlocking function.

In some embodiments, the locking member 4 is a cylindrical self-locking shaft, and the self-locking shaft rolls with the first guide surface 13 .

Therefore, under the push of the movable part 3 or the locking part 21 of the connecting part 2, the self-locking shaft can realize the reciprocating movement in the second direction more easily and effortlessly by rolling, that is, self-locking. The moving friction of the shaft is smaller, and thus the unlocking operation when unlocking is achieved through magnets is more sensitive, which improves the reliability of the self-locking device 100 .

In some embodiments, as shown in Figure 1, the self-locking device also includes a connector 2. The base 1 has a mating hole that communicates the installation cavity and the outside world. The connector 2 includes a locking portion 21 mated with the mating hole. The tightening part 21 is provided with a limiting surface 211 , which can be opposite to the first guide surface 13 , so that the locking member 4 is sandwiched between the limiting surface 211 and the first guide surface 13 .

That is, when the self-locking shaft is in the locking position, the first guide surface 13 and the locking piece 4 will always prevent the connecting piece 2 from locking. The part 21 protrudes from the mating hole to ensure the connection strength between the connecting piece 2 and the base 1.

In some embodiments, the locking portion 21 is provided with a protrusion on one side facing the locking member 4, the limiting surface 211 is provided on the upper edge of the protrusion, and the second guide surface 212 is provided on the lower edge of the protrusion. When the tightening part 21 extends downward into the installation cavity, first the second guide surface 212 contacts the locking member 4. Under the guidance of the second guide surface 212, the locking member 4 rolls in the opposite direction in the second direction until it bulges. The top surface located between the limiting surface 211 and the second guide surface 212 stops 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 of the second direction until the locking part 21 of the connecting piece 2 moves to the set position, and the locking part 4 limits Located between the limiting surface 211 and the first guide surface 13 , the locking portion 21 and the locking member 4 are fully engaged.

In some embodiments, as shown in FIGS. 2 and 3 , the movable member 3 includes a stopper 31 for preventing the locking member 4 from escaping from the first guide surface 13 , and the locking member 4 can abut against the stopper 31 , so that at least part of the locking member 4 intersects with the movement trajectory of the locking portion 21 in the installation cavity. That is, when the locking member 4 stops against the stopper 31, at least part of the locking member 4 intersects with the movement trajectory of the locking portion 21 in the installation cavity. The stopper 31 restricts the volume of the locking part 4 when it enters the mating hole area, preventing the uppermost edge of the locking part 4 from being located in the mating hole area, and ensuring that the locking part 21 of the connector 2 can accurately push the locking part when it extends into the installation cavity. 4. Roll in the opposite direction of the second direction.

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

As shown in Figure 2, the number of springs is two, and the two springs support the movable part 3 upward at the same time, thereby ensuring the stable support of the movable part 3 to the locking part 4.

In some embodiments, the base 1 includes a housing 11 and a bottom plate 12. The housing 11 is provided with openings for the movable part 3, the locking part 4 and the elastic part 5 to enter and exit. The bottom plate 12 is detachably connected to the housing 11 and is Seal the opening. Therefore, the movable part 3, the locking part 4 and the elastic part 5 can be easily disassembled and assembled in the base 1.

A vehicle according to an embodiment of the present disclosure includes the self-locking device 100 as in any of the above embodiments.

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

In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axis", The orientations or positional relationships indicated by "radial direction", "circumferential direction", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply the referred devices or elements. Must have a specific orientation, be constructed and operate in a specific orientation and therefore are not to be construed as limitations on the disclosure.

In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present disclosure, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.

In this disclosure, unless otherwise explicitly stated and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or become one body; it can be mechanically connected, electrically connected or communicable with each other; it can be directly connected or indirectly connected through an intermediary, it can be the internal connection of two elements or the interactive relationship between two elements, unless otherwise Clear limits. For those of ordinary skill in the art, the specific meanings of the above terms in this disclosure can be understood according to specific circumstances.

In this disclosure, unless otherwise expressly stated and limited, a first feature being "on" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features may be in indirect contact through an intermediary. touch. Furthermore, the terms "above", "above" and "above" the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "below" and "beneath" the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.

In this disclosure, the terms "one embodiment," "some embodiments," "example," "specific examples," or "some examples" or the like mean that a particular feature, structure, material, or other feature is described in connection with the embodiment or example. Features are included in at least one embodiment or example of the disclosure. In this specification, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification unless they are inconsistent with each other.

Although the embodiments of the present disclosure have been shown and described above, it can be understood that the above-mentioned embodiments are illustrative and should not be construed as limitations of the present disclosure. Those of ordinary skill in the art can make modifications to the above-mentioned embodiments within the scope of the present disclosure. The embodiments are subject to changes, modifications, substitutions and variations.

Claims

A self-locking device including:

a base, the base having an installation cavity, the base having a mating hole connecting the installation cavity and the outside world; and

The movable part, the locking part and the elastic part are all located in the installation cavity, the movable part is movably connected to the base, and the installation The surface of the cavity includes a first guide surface, the locking member is limited between the movable member and the first guide surface and has an unlocking position and a locking position, and the elastic member connects the movable member and the first guide surface. Base, the direction of the force exerted by the elastic member on the movable member is consistent with the moving direction of the movable member.
The self-locking device according to claim 1, wherein the movable member is slidably connected to the base along a first direction, the first guide surface extends along a second direction, and the second direction is connected to the base. The first direction is angled.
The 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, and the self-locking device further includes An unlocking piece, the unlocking piece is movably connected to the base, the unlocking piece is drivingly connected to the movable piece, and the direction of the force exerted by the unlocking piece on the movable piece is consistent with the force exerted by the elastic piece on the movable piece. The direction of the force of the above movable parts is opposite.
The self-locking device according to claim 3, wherein the self-locking device further includes a cylindrical first magnet and a paddle connected to the first magnet, the first magnet is located in the installation cavity inside and pivotally connected to the base, the pivot axis of the first magnet coincides with the central axis, the paddle protrudes from the outer peripheral surface of the first magnet, and the rotation track of the paddle Intersecting with the sliding trajectory of the movable member, the unlocking member includes a second magnet, which can attract the first magnet at a distance and control the rotation of the first magnet.
The self-locking device according to claim 3, wherein the self-locking device further includes a cylindrical first magnet and a worm coaxially connected to the first magnet, and the first magnet is located on the mounting surface. Inside the cavity and pivotally connected to the base, the pivot axis of the first magnet coincides with the central axis, the axial direction of the first magnet is consistent with the first direction, and the movable member is provided with There are worm gear teeth, the worm gear cooperates with the worm gear teeth, and the unlocking member includes a second magnet. The second magnet can attract the first magnet through space and control the rotation of the first magnet.
The self-locking device according to claim 3, wherein the base is provided with an unlocking hole opposite to the movable part, and the unlocking part can pass through the unlocking hole and push the movable part along the Slide in the first direction.
The self-locking device according to claim 6, wherein the unlocking hole is a slot-shaped long hole, and the unlocking piece is an unlocking piece that cooperates with the unlocking hole.
The self-locking device according to claim 6, wherein the unlocking hole is a round hole, and the unlocking member is a round rod that matches the round hole.
The self-locking device according to claim 6, wherein the self-locking device further includes a connecting piece, the base has a fitting hole connecting the installation cavity and the outside world, and the connecting piece includes a connecting piece with the fitting hole. A locking part fitted with a hole, a limiting surface is provided on the locking part, the limiting surface can be opposite to the first guide surface, and the locking piece is sandwiched between the limiting surface and the third guide surface. between one guide surface.
The self-locking device according to claim 9, wherein the locking portion is provided with a protrusion on one side facing the locking piece, and the limiting surface is provided on the upper edge of the protrusion, and the The lower edge of the protrusion is provided with a second guide surface.
The self-locking device according to claim 9, wherein the movable member includes a stopper for preventing the locking member from escaping from the first guide surface, and the locking member can engage with the stopper. The locking part is in contact with the locking part, and at least part of the locking part intersects with the movement trajectory of the locking part in the installation cavity.
The self-locking device according to claim 11, wherein the stop portion is used to constrain the volume of the locking member when it enters the mating hole area, and is used to push the locking portion when it extends into the installation cavity. The locking member rolls in the reverse direction of the second direction.
The self-locking device according to claim 2, wherein 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, and the spring The axial direction is consistent with the first direction.
The self-locking device according to claim 13, wherein the base includes a housing and a bottom plate, and the housing is provided with an opening for the movable member, the locking member and the elastic member to enter and exit, The bottom plate is detachably connected to the housing and closes the opening.
A vehicle including the self-locking device according to any one of claims 1-14.