CN210686762U

CN210686762U - Interlocking mechanism

Info

Publication number: CN210686762U
Application number: CN201921343261.8U
Authority: CN
Inventors: 程二亭; 韩久琦; 张倩玉
Original assignee: Beijing Haiyi Tongzhan Information Technology Co Ltd
Current assignee: Jingdong Shuke Haiyi Information Technology Co Ltd; Jingdong Technology Information Technology Co Ltd
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2020-06-05
Anticipated expiration: 2029-08-19
Also published as: WO2021032085A1

Abstract

Embodiments of the present disclosure disclose an interlock mechanism. One embodiment of the interlock mechanism comprises: a first interlock assembly and a second interlock assembly; the first interlocking component comprises a main body component, a swing rod, a connecting rod, a rolling piece limiting part and an elastic component, and the second interlocking component is provided with a groove matched with the edge of the rolling piece; the swing rod is rotatably connected with the main body part, the connecting rod is vertical to a rotating shaft of the swing rod and is not parallel to the swing rod, and the swing rod is connected with one end of the connecting rod through a pin shaft; the rolling member limiting part comprises an upper side face, a lower side face and an outer side face, the upper side face is perpendicular to the direction of the connecting rod and is fixedly connected with the other end of the connecting rod, the lower side face is in contact with the elastic component, the rolling member is arranged in a gap between the outer side face of the rolling member limiting part and the groove, and the width of the gap between the outer side face of the rolling member limiting part and the groove changes along the telescopic direction of the elastic component. The unlocking direction of the interlocking mechanism is perpendicular to the rotating shaft of the swing rod, and the interlocking mechanism can be applied to narrow space.

Description

Interlocking mechanism

Technical Field

The embodiment of the disclosure relates to the field of mechanical structures, in particular to an interlocking mechanism.

Background

The mechanical interlocking is a structure for realizing self-locking and unlocking through a mechanical structure, and can be applied to the butt joint of devices in mechanical or electrical engineering. Compared with the electrical interlocking, the mechanical interlocking does not need to be controlled by an electrical device, does not need power supply and has higher reliability. Mechanical interlocks are typically interlocked by a mechanical drive that engages or disengages the associated mechanical structures when the drive is moved to a desired position.

The existing interlocking mechanism is usually realized by adopting a buckling mode, and the unlocking direction is generally parallel to the axial direction of the object to be locked.

SUMMERY OF THE UTILITY MODEL

An embodiment of the present disclosure provides an interlock mechanism, including: a first interlock assembly and a second interlock assembly; the first interlocking component comprises a main body component, a swing rod, a connecting rod, a rolling element limiting part and an elastic component, and the second interlocking component is provided with a groove matched with the edge of the rolling element; the swing rod is rotatably connected with the main body part, the connecting rod is perpendicular to a rotating shaft of the swing rod and is not parallel to the swing rod, and the swing rod is connected with one end of the connecting rod through a pin shaft; the rolling part limiting part comprises an upper side surface, a lower side surface and an outer side surface, the lower side surface and the outer side surface are arranged opposite to the upper side surface, the upper side surface is perpendicular to the direction of the connecting rod and is fixedly connected with the other end of the connecting rod, the lower side surface is contacted with the elastic component, the rolling part is arranged in a gap between the outer side surface of the rolling part limiting part and the groove, the width of the gap between the outer side surface of the rolling part limiting part and the groove is changed along the extension direction of the elastic component, so that the rolling part is embedded into the groove when the elastic component extends, and the rolling part is separated from the groove when the elastic component is stressed and contracted.

In some embodiments, the rolling member defining portion includes a first defining portion and a second defining portion, and the upper side surface, the lower side surface, and the outer side surface of the rolling member defining portion are an upper side surface, a lower side surface, and an outer side surface of the first defining portion, respectively; the second limiting part is fixed relative to the main body part, and the second limiting part is provided with a through hole on the side surface opposite to the outer side surface of the first limiting part, and the through hole is used for fixing the position of the rolling piece in the direction of the connecting rod.

In some embodiments, the first interlock assembly further comprises a carrier; the elastic component is contacted with the lower side surface of the first limiting part at one end of the elastic component in the stretching direction, and the other end of the elastic component in the stretching direction is contacted with the bearing part; the bearing part is fixedly connected with the second limiting part.

In some embodiments, a balance pressing plate is disposed between the connecting rod and the upper side of the first limiting portion, the balance pressing plate is fixedly connected to the connecting rod, and the balance pressing plate is pressed against the upper side of the first limiting portion.

In some embodiments, a diameter of the through hole is smaller than a dimension of the rolling member in a direction in which the elastic member expands and contracts.

In some embodiments, a minimum gap width between the outer side surface of the roller defining portion and the groove is smaller than a dimension of the roller in the gap width direction.

In some embodiments, said second latch assembly comprises a cylindrical retainer plate open at an upper end thereof, said recess being disposed in an inner wall of said cylindrical retainer plate; the main body component of the first interlocking component comprises a cover plate which is matched with the opening of the cylindrical fixing plate and is used for buckling the opening of the cylindrical fixing plate.

In some embodiments, the first interlocking member comprises a plurality of the rolling members, the centers of the rolling members are distributed on the same inner circle side of a horizontal circular section of the cylindrical fixing plate, and a partition plate is arranged between the adjacent rolling members.

In some embodiments, the rolling member is made of metal.

According to the interlocking mechanism disclosed by the embodiment, the swing rod, the connecting rod connected with the swing rod pin shaft, the rolling piece limiting part and the elastic component are arranged in the first interlocking component, and the groove matched with the edge of the rolling piece is arranged in the second interlocking component, so that the swing rod drives the connecting rod to move under the action of external force or when the external force is lost for swinging, the rolling piece limiting part is driven to move, the rolling piece is further embedded into the groove or separated from the groove, and self-locking and unlocking of the first interlocking component and the second interlocking component are realized. The unlocking direction of the interlocking mechanism is perpendicular to the rotating shaft of the oscillating bar, so that the interlocking mechanism can be applied to a narrow space, and the applicability of the interlocking mechanism is enhanced.

Drawings

Other features, objects and advantages of the disclosure will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

FIG. 1 is a schematic structural view of one embodiment of an interlock mechanism of the present disclosure;

FIG. 2 is an isometric view of one embodiment of the interlock mechanism of the present disclosure;

FIG. 3 is a schematic view of the arrangement of the rolling elements in one embodiment of the interlock mechanism of the present disclosure;

FIG. 4 is a schematic structural view of another embodiment of an interlock mechanism of the present disclosure;

Detailed Description

The present disclosure is described in further detail below with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the relevant portions of the related inventions are shown in the drawings.

It should be noted that, in the present disclosure, the embodiments and features of the embodiments may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Fig. 1 shows a schematic structural view of one embodiment of the interlock mechanism of the present disclosure. As shown in fig. 1, the interlocking mechanism of the present embodiment includes a first interlocking component 101 and a second interlocking component 102. The first interlocking component 101 and the second interlocking component 102 form a detent position with each other when the interlocking mechanism is locked, and the first interlocking component 101 and the second interlocking component 102 are separated from each other when the interlocking mechanism is unlocked.

The first interlocking unit 101 includes a body member 1, a swing link 2, a link 3, a roller 4, a roller defining portion 5, and an elastic member 6. The second coupling member 102 is provided with a groove 7 which engages with the edge of the roller 4.

The main body part 1 is a fixed part of the first interlocking assembly 101, and the swing rod 2 is rotatably connected with the main body part 1. In particular, the pendulum 2 may be connected to the body part 1 via a pivot 8, wherein the pendulum 2 may be pivoted about the pivot 8 relative to the body part 1.

Alternatively, as shown in fig. 1, the body member 1 may be provided with a strip-shaped slot 9 for receiving the swing link 7, and the strip-shaped slot 9 may be sized to allow the swing link 7 to rotate within a certain range (in the XX' direction shown in fig. 1) in a plane perpendicular to the rotation axis 8.

The connecting rod 3 is vertical to the rotating shaft 8 of the swing rod 2, and the connecting rod 3 is not parallel to the swing rod 2. The swing rod 2 is connected with one end of the connecting rod 3 through a pin shaft 10. Here, the link 3 and the swing link 2 are connected to each other at an angle by a pin 10, so that the swing link 2 can drive the link 3 to move along the extending direction (XX' direction in fig. 1) of the link 3 when rotating around the rotating shaft 8. Alternatively, in the locked state of the interlocking mechanism, the extending directions of the swing link 2 and the connecting rod 3 are perpendicular to each other.

The roller defining portion 5 includes an upper side 51, a lower side 52 disposed opposite the upper side 51, and an outer side 53. The upper side surface 51 is perpendicular to the extending direction of the connecting rod 3 and is fixedly connected with the other end of the connecting rod 3. The lower side 52 is in contact with the elastic member 6. The rolling member 4 is arranged in a gap between the outer side surface 53 of the rolling member limiting part 5 and the groove 7 of the second interlocking part, and the width of the gap between the outer side surface 53 of the rolling member limiting part 5 and the groove 7 is changed along the expansion direction (as shown in the XX' direction in fig. 1) of the elastic component, so that the rolling member 4 is embedded into the groove 7 when the elastic component 6 is expanded, and the rolling member 4 is separated from the groove 7 when the elastic component 6 is stressed and contracted.

The elastic member 6 may be, for example, a spring, a metal spring sheet, or the like (fig. 1 illustrates a spring as an example). The stretching direction of the elastic component 6 is consistent with the moving direction of the connecting rod 3 driven by the swing rod 2. The elastic member 6 is in contact with the roller defining portion 5 at one end in the expansion and contraction direction thereof, and the elastic member 6 may be fixed to the main body member 1 at the other end in the expansion and contraction direction thereof. Thus, when the roller defining portion 5 moves toward the elastic member 6 with the link 3, the elastic member 6 is deformed to generate an elastic restoring force.

The tangent to the outer side 53 of the roller delimiting part 5 may form an acute angle with the upper side 51. The outer side 53 may be a bevel, or a curved surface. A gap is provided between the outer side 53 and the groove 7, in which gap the rolling element 4 can roll in the direction of the line between the outer side 53 and the groove. The gap width between the outer side surface 53 and the groove 7 changes when the roller defining part 5 moves with the connecting rod 3. When the gap width is reduced from large to small, the rolling piece 4 is extruded to roll in the groove 7 on the outer side, so that the rolling piece 4 is embedded into the groove 7; when the gap width is increased from small to large, the rolling member 4 is disengaged from the groove 4.

The rolling member 4 is a rollable member, and the surface thereof may be a curved surface.

Alternatively, the rolling members 4 may be made of a rigid material. Further optionally, the rolling member 4 is made of a metal material, and the rolling member 4 may be a steel ball, for example. Therefore, the interlocking mechanism can be applied to devices made of metal materials, and the application range is expanded.

The second interlocking unit 102 can be engaged with the first interlocking unit 101 by engaging the roller 4 with the recess 7, and the first interlocking unit 101 and the second interlocking unit 102 are separated when the roller 4 is disengaged from the recess.

In use, the first interlocking component 101 slides into the second interlocking component 102 from the direction X shown in fig. 1, and when the rolling element 4 slides into the groove 7, the rolling element limiting part 5 pushes the rolling element 4 outwards and is clamped into the groove 7 under the action of the elastic component 6, so that self-locking is completed.

When unlocking, the transverse swing rod 2 can be rotated to swing towards the X' direction, the longitudinal connecting rod 3 is driven to press down through the pin shaft 10, the rolling part limiting part 5 fixedly connected with the connecting rod 3 presses down, then the rolling part limiting part 5 compresses the elastic component 6, the gap between the outer side surface of the rolling part limiting part 5 and the groove 7 is increased, and the rolling part 4 falls off from the groove 7. The first interlocking component 101 can be integrally separated from the second interlocking component 102 by lifting the swing rod 2 upwards, and unlocking is completed.

The interlocking mechanism is characterized in that the first interlocking component is internally provided with the oscillating bar, the connecting rod connected with the oscillating bar pin shaft, the rolling piece limiting part and the elastic component, and the second interlocking component is internally provided with the groove matched with the edge of the rolling piece, so that the oscillating bar drives the connecting rod to move under the action of external force or when the oscillating bar loses the action of the external force, the rolling piece limiting part is driven to move, the rolling piece is embedded into the groove or separated from the groove, and the self-locking and the unlocking of the first interlocking component and the second interlocking component are realized. The unlocking direction of the interlocking mechanism is the XX' direction shown in figure 1, is perpendicular to the rotating shaft of the oscillating bar, can be applied to a narrow space, and enhances the applicability of the interlocking mechanism.

Alternatively, in the interlocking mechanism shown in fig. 1, the minimum gap width between the outer side surface 53 of the roller defining part 5 and the groove 7 of the second interlocking part is smaller than the dimension of the roller 4 in the gap width direction. In this way, it is ensured that the rolling elements 4 do not fall out of the gap between the outer side 53 of the rolling element defining portion 5 and the recess 7 of the second interlocking member.

Alternatively, the second latch assembly 102 may include a cylindrical fixing plate opened at an upper portion thereof, and the recess 7 is formed in an inner wall of the cylindrical fixing plate. The body member 1 of the first interlocking unit 101 may include a cover plate 11 fitted to the opening of the cylindrical fixing plate for fastening the opening of the cylindrical fixing plate.

Figure 2 illustrates an isometric view of one embodiment of the interlock mechanism of the present disclosure. As shown in fig. 2, the first interlocking member 101 includes a cover plate 11, and the second interlocking member 102 is a cylindrical fixing plate opened at the upper side. When the first interlocking component 101 and the second interlocking component 102 form a clamping phase interlocking, the cover plate 11 is buckled on the opening of the cylindrical fixing plate, so that the interlocking mechanism forms a closed whole.

Further alternatively, the second interlocking part 102 may be provided with a plurality of recesses 7 and correspondingly the first interlocking part 101 may be provided with a plurality of rolling elements. The centers of the rolling elements 4 are distributed on the same inner circle side of a horizontal section of the cylindrical fixing plate.

Fig. 3 shows a schematic view of the arrangement of the rolling elements, wherein 301 represents a horizontal section of the cylindrical holding plate, which is approximately circular and which has an outwardly convex shape in the recess 7. 302 represents an inner circle of a horizontal section 301 of the cylindrical fixing plate. The rolling elements may be ball-shaped, the centre points of the rolling elements 4 being distributed on the sides of the inner circle 302. Alternatively, the centre points of the rolling elements 4 may be evenly distributed over the sides of the inner circle 302 and the rolling elements are symmetrically distributed with respect to the centre of the inner circle 302. In this case, the outer side surface 53 of the roller regulation part 5 may be curved, and the side of the horizontal cross section of the outer side surface of the roller regulation part 5 may be circular.

Spacers 12 may also be provided between adjacent rolling elements 4, so that the position of the rolling elements 4 may be further defined, avoiding movement of the rolling elements 4 in a direction around the outer side of the rolling element defining portion 5.

With continued reference to fig. 4, a schematic structural view of another embodiment of the interlock mechanism of the present disclosure is shown.

As shown in fig. 4, the roller defining part 5 in the first interlocking component comprises a first defining part 501 and a second defining part 502 on the basis of the embodiment shown in fig. 1. The relative positions of the first and second limiting

portions

501 and 502 are not fixed, that is, the first and second limiting

portions

501 and 502 can move relatively. The upper side 51, the lower side 52 and the outer side 53 of the roller defining section 5 are the upper side, the lower side and the outer side of the first defining section 501, respectively. The link 3 is fixedly connected to the upper side of the first defining portion 501.

The second defining portion 502 is fixedly arranged with respect to the body member 1, for example, may be integrally formed with the body member, and the second defining portion 502 is provided with a through hole 13 at a side surface opposite to the outer side surface of the first defining portion 501, the through hole 13 being used for fixing a position of the rolling member 4 in the extending direction of the link, that is, a position of the rolling member 4 in a direction perpendicular to the width direction of the gap between the rolling member defining portion 5 and the recess 7 (YY' direction shown in fig. 4). That is, the size of the through hole 13 may be designed according to the size of the rolling member 4 such that the moving distance of the rolling member 4 in the extending direction of the link is limited within the caliber of the through hole 13. In this way it is ensured that the rolling member 4 does not move too far during the locking or unlocking process, which would cause the rolling member 4 to fall out of the first interlocking member 101.

Here, a gap also exists between the first defining portion 501 and the second defining portion 502 in the extending direction of the link 3 (XX' direction shown in fig. 4). When the link 3 moves in the extending direction thereof, the first defining portion 501 moves accordingly with respect to the second defining portion 502. Since the second defining portion 502 is fixed relative to the body member 1, when the first defining portion 501 moves with the link 3, the through hole 13 of the second defining portion 502 can define the movement range of the rolling member 4 in the vertical direction (the telescopic direction of the elastic member 6, i.e., the XX 'direction shown in fig. 4), ensuring that the rolling member 4 moves only in the horizontal direction (the YY' direction shown in fig. 4).

Optionally, the diameter of the through hole 13 is smaller than the dimension of the rolling member 4 in the telescopic direction of the elastic member to further ensure that the rolling member 4 cannot move in the vertical direction, but only moves in the horizontal direction.

Alternatively, as shown in fig. 1 and 4, the lower surface of the roller defining part 5 may not be a plane, and a side of the roller defining part 5 contacting the elastic member 6 may have an opening area for accommodating the elastic member 6.

Optionally, as shown in fig. 4, the first interlocking component 101 may further include a bearing portion 14, and the bearing portion 14 may be a bottom plate of the first interlocking component 101 and fixedly connected to the second defining portion 502. The bearing portion 14 is used for bearing the elastic member 6. The elastic member 6 is in contact with the lower side surface 52 of the first defining portion 501 and the bearing portion 14 at both ends thereof in the expansion and contraction direction, respectively. Since the bearing portion 14 can provide a fixed supporting force for the elastic member 6, the elastic member 6 between the bearing portion 14 and the first defining portion 501 can be contracted or expanded when the first defining portion 501 moves relative to the second defining portion 502. Alternatively, the bearing portion 14 can be fixedly connected with the second limiting portion 502 through a screw 15 (e.g., a countersunk screw).

Alternatively, a balance pressing plate 16 may be provided between the link 3 and the upper side 51 of the first defining portion 501. The balance pressing plate 16 can be fixedly connected with the connecting rod 3 through a fastener such as a screw, and the balance pressing plate 16 is pressed on the upper side 51 of the first limiting portion 501. The balance pressing plate 16 can uniformly spread the force generated by the downward movement of the link 3 in the vertical direction (the YY' direction shown in fig. 4) to the entire balance pressing plate, thereby transmitting a uniform pressing force to the upper side 51 of the first defining portion 501. At this time, the elastic component 6 is stressed uniformly, and the stability of the interlocking structure during unlocking or locking can be improved.

The first interlocking assembly 101 and the second interlocking assembly 102 may be provided with openings for connecting other mechanical structures or electrical devices, and the first interlocking assembly 101 and the second interlocking assembly 102 may be connected to different mechanical structures or electrical devices at the openings by means of snapping, screwing, or the like, so that the mechanical structures or electrical devices may be connected to or separated from each other by an interlocking mechanism.

The foregoing description is only exemplary of the preferred embodiments of the disclosure and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention as defined in the present disclosure is not limited to the specific combination of the above-mentioned features, but also encompasses other embodiments in which any combination of the above-mentioned features or their equivalents is possible without departing from the inventive concept as defined above. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. An interlock mechanism, comprising: a first interlock assembly and a second interlock assembly;

the first interlocking assembly comprises a main body part, a swing rod, a connecting rod, a rolling piece limiting part and an elastic part, and the second interlocking assembly is provided with a groove matched with the edge of the rolling piece;

the swing rod is rotatably connected with the main body part, the connecting rod is perpendicular to a rotating shaft of the swing rod and is not parallel to the swing rod, and the swing rod is connected with one end of the connecting rod through a pin shaft;

the rolling member limiting part comprises an upper side face, a lower side face and an outer side face, the lower side face and the outer side face are arranged opposite to the upper side face, the upper side face is perpendicular to the direction of the connecting rod and is fixedly connected with the other end of the connecting rod, the lower side face is in contact with the elastic component, the rolling member is arranged in a gap between the outer side face of the rolling member limiting part and the groove, the width of the gap between the outer side face of the rolling member limiting part and the groove is changed along the telescopic direction of the elastic component, so that the rolling member is embedded into the groove when the elastic component extends, and the rolling member is separated from the groove when the elastic component is stressed and contracted.

2. The interlocking mechanism according to claim 1, wherein the roller defining portion includes a first defining portion and a second defining portion, the upper side, the lower side, and the outer side of the roller defining portion being an upper side, a lower side, and an outer side of the first defining portion, respectively;

the second limiting part is fixedly arranged relative to the main body part, and a through hole is formed in the side surface of the second limiting part, which is opposite to the outer side surface of the first limiting part, and is used for fixing the position of the rolling piece in the direction of the connecting rod.

3. The interlock mechanism of claim 2, wherein said first interlock component further comprises a load bearing portion;

one end of the elastic component in the telescopic direction of the elastic component is contacted with the lower side surface of the first limiting part, and the other end of the elastic component in the telescopic direction of the elastic component is contacted with the bearing part;

the bearing part is fixedly connected with the second limiting part.

4. The interlock mechanism according to claim 2, wherein a balance pressing plate is provided between the link and the upper side of the first defining portion, the balance pressing plate is fixedly connected to the link and is press-fitted to the upper side of the first defining portion.

5. The interlocking mechanism according to claim 2, wherein the diameter of the through hole is smaller than the dimension of the rolling member in the direction of expansion and contraction of the elastic member.

6. The interlocking mechanism of claim 1, wherein a minimum gap width between the outer side surface of the roller defining portion and the groove is smaller than a dimension of the roller in the gap width direction.

7. A locking mechanism as claimed in any one of claims 1 to 6 wherein the second locking assembly includes an upper open cylindrical retaining plate, the recess being provided in an inner wall of the cylindrical retaining plate;

the main body component of the first interlocking component comprises a cover plate which is matched with the opening of the cylindrical fixing plate and used for buckling the opening of the cylindrical fixing plate.

8. An interlocking mechanism as claimed in claim 7 wherein said first interlocking member comprises a plurality of said rolling members, the centres of said rolling members being located on the sides of the same inner circle of a horizontal circular cross-section of said cylindrical holding plate, and spacers being located between adjacent rolling members.

9. An interlocking mechanism as claimed in any one of claims 1 to 6 wherein the rolling members are of metal.