CN103318008B - Rotation locking mechanism and its hitch assembly - Google Patents

Abstract

A hanging component comprises a mounting plate, a base, a central shaft, a hanging buckle, a control pin shaft, a reset elastic piece and a limiting block; the base is fixedly connected with the mounting plate, and a limit groove is formed in the base; the middle part of the central shaft can rotatably penetrate through the mounting plate and the base; the hanging buckle is fixed at one end of the central shaft and is used for hanging the hanging matching component; the control pin shaft can be slidably arranged at one end of the central shaft far away from the hanging buckle in a penetrating way; the reset elastic piece provides an elastic restoring force to the control pin shaft, so that the control pin shaft can automatically reset after sliding towards the inside of the central shaft; the limiting block penetrates through the central shaft and is fixedly connected with the control pin shaft, and the limiting block can slide along the axial direction of the central shaft and is matched with the limiting groove to prevent the central shaft from rotating. The invention also provides a rotary locking mechanism comprising the hanging component and the hanging matching component. The hanging assembly can improve the reliability of the rotary locking mechanism.

Description

Rotation locking mechanism and its hitch assembly

【Technical field】

The invention relates to a locking mechanism, in particular to a rotation locking mechanism and its hook assembly.

【Background technique】

In order to connect the two objects together and separate them conveniently, a locking mechanism is usually provided between the two objects so that the two objects can be detachably connected.

A traditional locking mechanism generally connects two objects through two hooks, one of which is fixed on one of the objects, and the other is fixed on the other object. When two objects need to be connected, the two hooks are hung together; when two objects need to be separated, the two hooks can be separated directly.

However, the traditional locking mechanism uses two hooks that are connected to each other to connect the two objects. When receiving external force vibration, the two hooks are easy to disengage, so that the two objects will be disengaged in an accidental situation. For example, when connecting a car's battery to the battery box, traditional locking mechanisms tend to separate when the car vibrates, causing the battery to fall out of the battery box. Therefore, the traditional locking mechanism is less reliable.

【Content of invention】

In view of the above situation, it is necessary to provide a highly reliable rotation locking mechanism and its hook assembly.

A hook assembly comprising:

mounting plate;

The base is fixedly connected with the mounting plate, and the base is provided with a limiting slot;

a central shaft, the middle of which is rotatably pierced through the mounting plate and the base;

A hook, fixed on one end of the central shaft, and the hook is used for hooking with the hooking matching component;

The control pin shaft is slidably passed through the end of the central shaft away from the buckle;

The reset elastic member provides an elastic restoring force on the control pin, so that the control pin can automatically reset after sliding toward the inside of the central shaft; and

A limiting block, which passes through the central shaft and is fixedly connected with the control pin shaft, the limiting block is slidable along the axial direction of the central shaft, and cooperates with the limiting groove to prevent the central shaft rotation;

Wherein, the rotation of the central shaft drives the buckle to rotate, until the buckle is hooked with the articulated fitting assembly, the limit block is in contact with the position limiter under the action of the reset elastic member. The slots cooperate to lock the central shaft.

In one of the embodiments, one end of the central shaft is provided with a shaft hole on the end surface and a slide groove on the side wall communicating with the shaft hole, and one end of the control pin shaft is slidably accommodated in the shaft hole. In the shaft hole, the limiting block is slidably accommodated in the sliding groove.

In one embodiment, the return elastic member is a compression spring accommodated at the bottom of the shaft hole and sheathed on the control pin shaft.

In one embodiment, the base is provided with a through hole through which the central shaft passes, and the limiting groove includes a first groove portion and a second groove portion located at the periphery of the through hole and arranged at intervals , the limiting block is disengaged from the first groove, and the central shaft is allowed to rotate freely, until the limiting block rotates to a position corresponding to the second groove, the buckle and The hook fitting component is firmly hooked, and the limit block cooperates with the second groove under the action of the reset elastic member to lock the buckle.

In one of the embodiments, the base is further provided with an accommodating groove communicating with the limiting groove, and the limiting block can freely rotate in the accommodating groove.

In one of the embodiments, it also includes a base fixed on the mounting plate and a rotating block fixed on the central shaft and freely rotatable in the accommodating cavity, the base is fixed on the base On the seat, the base is provided with a receiving cavity, and the rotating block can rotate freely in the receiving cavity.

In one of the embodiments, it further includes a floating elastic piece accommodated in the receiving cavity and abutted between the installation plate and the rotating block.

In one of the embodiments, it also includes a wear-resistant gasket sleeved on the central shaft and accommodated in the accommodation cavity, the wear-resistant gasket abuts against the floating elastic piece and the rotating block between.

A hitch fitting assembly for hooking with a buckle, comprising:

The lifting plate is provided with a through hole for the hanging buckle to pass through;

The lifting cover is provided with a receiving groove, and the lifting cover is fixedly connected with the lifting plate;

Wherein, the hook passes through the through hole, and is engaged in the receiving groove after being rotated relative to the lifting plate.

In one of the embodiments, the through hole includes a hole and a notch at the periphery of the hole, and the buckle can pass through the notch.

In one embodiment, the lifting plate is formed with a lifting curved surface on its inner side, the lifting curved surface is located at the edge of the notch, and the hook slides into the notch along the lifting curved surface.

In one embodiment, a blocking protrusion is provided at the bottom of the receiving groove, and the hanging buckle abuts against the blocking protrusion after the receiving groove rotates a predetermined angle to prevent the hanging buckle from rotating.

A rotary locking mechanism for detachably connecting a first object to a second object, comprising:

In the above-mentioned hook assembly, the mounting plate is fixed on the first object; and

In the above-mentioned hooking and matching assembly, the lifting plate or/and the lifting cover are fixed on the second object.

The lifting cover plate of the above-mentioned rotation locking mechanism is provided with a receiving groove, and the hanging buckle of the hooking component passes through the through hole of the lifting plate, and after being rotated relative to the lifting plate, it is engaged in the receiving groove so that the hanging The buckle is not easy to fall off from the receiving groove, so as to improve the reliability of the rotation locking mechanism; in addition, the limit block of the hook assembly cooperates with the limit groove of the base under the action of the reset elastic part to lock the central axis, so as to lock the buckle Improve the reliability of the rotation lock mechanism. Therefore, the above-mentioned rotation locking mechanism has high reliability.

【Description of drawings】

1 is a perspective view of a rotation locking mechanism according to an embodiment of the present invention;

Fig. 2 is a partial sectional view of the rotation locking mechanism shown in Fig. 1;

Fig. 3 is a partial perspective view of the hook assembly of the rotation locking mechanism shown in Fig. 1;

Fig. 4 is a perspective view of a wear-resistant gasket of the hitch assembly of the rotation locking mechanism shown in Fig. 1;

Fig. 5 is a top view of the lifting plate of the articulated fitting assembly of the rotation locking mechanism shown in Fig. 1;

Fig. 6 is a top view of the lifting cover plate of the hitch fitting assembly of the rotation locking mechanism shown in Fig. 1;

Fig. 7 is a state diagram when the limit block of the hook fitting assembly of the rotation locking mechanism shown in Fig. 1 is accommodated in the limit groove of the base;

Fig. 8 is a cross-sectional view when the limit block of the hook fitting assembly of the rotation locking mechanism shown in Fig. 1 is accommodated in the limit groove of the base;

Fig. 9 is a state diagram when the limit block of the hook fitting assembly of the rotation locking mechanism shown in Fig. 1 is accommodated in the accommodation groove of the base;

Fig. 10 is a cross-sectional view when the limit block of the hook fitting assembly of the rotation locking mechanism shown in Fig. 1 is accommodated in the accommodation groove of the base;

FIG. 11 is a schematic plan view of the base of the hitch fitting assembly of the rotary locking mechanism shown in FIG. 1 .

【Detailed ways】

In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to FIG. 1 , a rotation locking mechanism 10 according to an embodiment of the present invention is used to detachably connect a first object (not shown) with a second object (not shown). The rotation locking mechanism 10 includes a hook assembly 100 and a hook With the mating component 200, the hook component 100 is connected with the first object, and the hook fitting component 200 is connected with the second object. In this embodiment, the battery box of an electric vehicle is taken as an example for illustration. The first object may be a battery box, and the second object may be a battery box compartment of an electric vehicle. The battery box can be fixed to the electric vehicle by rotating the locking mechanism 10. inside the battery compartment. Of course, the rotation locking mechanism 10 can also be applied to fields, for example, goods handling and the like.

Referring to FIG. 2 and FIG. 3 , the hook assembly 100 includes a mounting plate 110 , a base 120 , a base 130 , a central shaft 140 , a buckle 150 , a control pin 160 , a restoring elastic member 170 and a limiting block 180 . (Summary diagram, and 170 errors in Figure 2, 170 is inside the central axis, should not be visible in the summary diagram, and Figure 2)

The mounting plate 110 is fixed on the first object or is a part of the first object. Specifically, in this embodiment, the mounting plate 110 is a rectangular plate structure.

The base 120 is fixed on the installation board 110 . The base 120 defines a receiving chamber (not shown). Specifically, in this embodiment, the base 120 is a square block, and the accommodating cavity is a circular groove opened on one side of the base 120 .

Please refer to FIG. 2 and FIG. 11 together, the base 130 is fixedly connected to the base 120 . A limiting slot 131 and an accommodating slot 133 communicating with the limiting slot 131 are defined on the base 130 . The limiting groove 131 is a slot defined on one side of the base 130 , and the accommodating groove 133 is a circular groove defined on the opposite side of the base 130 . The shape of the limiting groove 131 matches that of the limiting block 180 . Specifically, in this embodiment, the base 130 is provided with a through hole (not shown) through which the central axis 140 passes, and the limiting groove 131 includes a first groove portion 1311 and a second groove located at the periphery of the through hole and arranged at intervals. Section 1312.

It should be noted that the limiting groove 131 is not limited to include the first groove portion and the second groove portion arranged at intervals, only the limiting block 180 needs to cooperate with the limiting groove 131 under the action of the reset elastic member 170 to lock the center. The shaft 140 is enough. For example, the limiting groove 131 can also only include the first groove portion or the second groove portion, or the limiting groove 131 includes three or more groove portions, which are respectively the first groove portion, the second groove portion, and the second groove portion. Second slot, third slot and so on.

The central shaft 140 is rotatably passed through the mounting plate 110 , the base 120 and the base 130 . Specifically, in this embodiment, one end of the central shaft 140 is provided with a shaft hole on the end surface and a chute on the side wall communicating with the shaft hole, and the chute extends along the axial direction of the central shaft 140 . The central axis 140 passes through the middle of the mounting plate 110 , the base 120 and the base 130 .

The hanging buckle 150 is fixed on one end of the central shaft 140 , and the hanging buckle 150 is used for hooking with the hooking matching component 200 . Specifically, in this embodiment, the buckle 150 is a cross bar passing through one end of the central axis 140 .

It should be noted that the hanging buckle 150 is not limited to being a cross bar passing through one end of the central axis 140, and may also be of other structures, as long as the hanging buckle 150 can be articulated with the articulated matching component 200. For example, the hanging buckle 150 is A barb fixed to one end of the central shaft 140 .

The control pin shaft 160 is slidably passed through the end of the central shaft 140 away from the buckle 150 . Specifically, in this embodiment, one end of the control pin shaft 160 is slidably received in the shaft hole of the central shaft 140 .

The reset elastic member 170 provides an elastic restoring force on the control pin shaft 160 , so that the control pin shaft 160 slides toward the center shaft 140 and then automatically resets. Specifically, in this embodiment, the return elastic member 170 is a compression spring accommodated at the bottom of the shaft hole of the central shaft 140 and sheathed on the control pin shaft 160 .

Wherein, the central shaft 140 rotates to drive the buckle 150 to rotate, until the buckle 150 is hooked with the articulated fitting assembly 200, the limiting block 180 cooperates with the limiting groove 131 of the base 130 under the action of the reset elastic member 170 The central shaft 140 is locked.

It should be noted that the return elastic member 170 is not limited to being a compression spring accommodated at the bottom of the shaft hole of the central shaft 140 and sleeved on the control pin shaft 160, and may also be of other structures, as long as the return elastic member 170 provides a The elastic recovery force acts on the control pin shaft 160 so that the control pin shaft 160 can be automatically reset after sliding towards the inside of the central shaft 140. An extension spring or a rubber band on one end face of pin shaft 160 .

The limiting block 180 passes through the central shaft 140 and is fixedly connected with the control pin shaft 160 . The limiting block 180 is slidable along the axial direction of the central shaft 140 and cooperates with the limiting groove 131 of the base 130 to prevent the central shaft 140 from rotating. The limiting block 180 can move from the limiting slot of the base 130 into the accommodating slot 133 of the base 130 . Specifically, in this embodiment, the limiting block 180 slides along the chute of the central shaft 140, disengages from the first groove portion of the limiting groove 131 of the base 130, and is accommodated in the accommodating groove 133, so that the central shaft 140 can rotate freely. until the stopper 180 rotates to the position corresponding to the second slot of the stopper groove 131 of the base 130, the hook 150 and the articulated fitting assembly 200 are hooked firmly, and the stopper 180 is in the position of the reset elastic member 170 Under action, the hook 150 is locked by cooperating with the second groove portion of the limiting groove 131 of the base 130 .

The hook assembly 100 also includes a rotating block 191 fixed on the central shaft 140 and freely rotatable in the receiving chamber of the base 120 . The rotating block 191 is used to limit the central shaft 140 and prevent the central shaft 140 from falling off from the base 130 .

The hook assembly 100 further includes a floating elastic piece 193 , which is accommodated in the cavity of the base 120 and abuts between the mounting plate 110 and the rotating block 191 . The floating elastic piece 193 provides an elastic contact force with the rotating block 191 to make the rotating block 191 rotate stably and prevent the central shaft 140 from shaking left and right, thereby improving the stability of the hitch assembly 100 .

The hooking assembly 100 further includes a wear-resistant washer 195 , the wear-resistant washer 195 is sheathed on the central shaft 140 and accommodated in the receiving cavity of the base 120 . The wear-resistant gasket 195 abuts between the floating elastic piece 193 and the rotating block 180 to prevent the rotating block 180 from wearing out too quickly due to the friction between the elastic piece 193 and the rotating block 180 , thereby improving the service life of the rotating block 180 . Please refer to FIG. 4 together. Specifically, in this embodiment, the wear-resistant gasket 195 includes an annular body 1951 sleeved on the central shaft 140 and a limiting flange 1953 arranged on the outer periphery of the body 1951. The base The side wall of the receiving cavity of 120 is provided with the chute corresponding to the limit flange 1953, so that the wear-resistant gasket 195 slides along the chute on the side wall of the receiving cavity of the base 120, but cannot be on the side wall of the base 120. Rotate in the receiving cavity, thereby reducing the friction loss between the floating elastic piece 193 and the rotating block 180 .

The hitch assembly 100 also includes a rotating handle 197 , and the rotating handle 197 passes through the end of the central shaft 140 close to the control pin shaft 160 , so that the rotating handle 197 can drive the central shaft 140 to rotate.

It can be understood that the base 120 can also be omitted. In this case, the base 130 is directly fixed on the mounting plate 110 , and the central axis 140 passes through the mounting plate 110 and the base 130 .

Please refer to FIG. 1 again, the hook fitting assembly 200 is hooked with the buckle 150 of the hook assembly 100 . The hook fitting assembly 200 includes a lifting plate 210 and a lifting cover 220 . The lifting plate 210 or/and the lifting cover 220 are fixed on the second object.

Referring to FIG. 5 , the lifting plate 210 defines a through hole 211 through which the buckle 150 of the hook assembly 100 passes. Specifically, in this embodiment, the through hole 211 includes a hole portion 2111 and a notch 2113 located at a periphery of the hole portion, and the buckle 150 can pass through the notch 2113 . In addition, the lifting plate 210 has a lifting curved surface 213 formed on its inner side, the lifting curved surface 213 is located at the edge of the notch 2113 , and the hook 150 slides along the lifting curved surface 213 into the notch 2113 .

Please refer to FIG. 6 , the lifting cover 220 defines a receiving groove 221 , and the lifting cover 220 is fixedly connected with the lifting plate 210 to close the receiving groove 221 . Wherein, the buckle 150 of the hook assembly 100 passes through the through hole 211 of the lifting plate 210 , and is engaged in the receiving groove 221 of the lifting cover 220 after being rotated relative to the lifting plate 210 . Specifically, in this embodiment, the bottom of the receiving groove 221 is provided with a blocking protrusion 223, and the hanging buckle 150 abuts against the blocking protrusion 223 after the receiving groove 221 of the lifting cover 220 rotates at a predetermined angle to prevent the hanging buckle 150 from continuing to rotate. .

Please refer to Fig. 2, Fig. 3, Fig. 7, Fig. 8, Fig. 9 and Fig. 10 at the same time. When the first object is locked and connected with the second object, the hitch fitting component 200 approaches the hitch component 100, and the control pin is pushed first. 160 , by controlling the pin shaft 160 , the limit block 180 is pushed out from the limit groove 131 on the base 130 into the accommodating groove 133 in the base 130 , so that the central shaft 140 of the hitch assembly 100 can rotate. After being pushed in place, the articulated fitting assembly 200 pushes the second object closer to the first object until the hook 150 on the articulated assembly 100 is inserted into the corresponding through hole on the lifting plate 210 of the articulated mating assembly 200. The assembly 200 stops moving, and the central shaft 140 of the hook assembly 100 is driven to rotate by the rotating handle 197 on the hook assembly 100 until the hook 150 is restricted by the blocking protrusion 223 in the receiving groove 221 of the lifting cover 220 and cannot rotate. Stop the rotation, the articulated fitting assembly 200 leaves the articulated assembly 100, and the reset elastic member 170 pushes the limiting block 180 into the limiting groove 131 of the base 130, so that the central shaft 140 of the articulated assembly 100 cannot rotate freely, completing the first A locking connection of an object to a second object.

When the first object is unlocked and separated from the second object, the hitch fitting assembly 200 approaches the hitch assembly 100 , first pushes the control pin shaft 160 , and through the control pin shaft 160 , the stop block 180 is moved from the stop slot 131 of the base 130 Push out into the receiving groove 133 in the base 130, so that the central axis 140 of the hook assembly 100 can rotate. After being pushed in place, the hitch fitting assembly 200 drives the central shaft 140 of the hitch assembly 100 to rotate through the rotating handle 197 on the hitch assembly 100 until the hook 150 is restricted by the blocking protrusion 223 in the receiving groove 221 of the lifting cover 220 When it cannot rotate, stop the rotation. At this time, the hook 150 on the hook assembly 100 corresponds to the through hole on the lifting plate 210. Leaving the hook assembly 100, the return elastic member 170 pushes the limit block 180 into the limit groove 131 of the base 130, so that the central shaft 140 of the hang assembly 100 cannot rotate freely, and completes the unlocking and separation of the first object and the second object .

The lifting cover plate 220 of the hitch fitting assembly 200 of the above-mentioned rotation locking mechanism 10 is provided with a receiving groove 221, and the hook 150 of the hook assembly 100 passes through the through hole of the lifting plate 210, and is locked after being rotated relative to the lifting plate 210. Fit in the receiving groove 221 so that the hanging buckle 150 is not easy to fall off from the receiving groove 221, so as to improve the reliability of the rotation locking mechanism 10; in addition, the stop block 180 of the hook assembly 100 contacts with the base 130 under the action of the reset elastic member 170 The limiting groove 131 of the center shaft 140 is locked by cooperating with the limiting groove 131 to lock the buckle 150 to improve the reliability of the rotation locking mechanism 10 . Therefore, the above-mentioned rotation locking mechanism 10 has high reliability.

The above-mentioned embodiments only express several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (12)

1. a hitch assembly, is characterized in that, comprising:

Adapter plate;

Base, is fixedly connected with described adapter plate, and described base offers position-limited trough;

Center shaft, wears described adapter plate and base in the middle part of it rotationally;

Buckle, be fixed on one end of described center shaft, described in buckle for mounting matable assembly mount;

Control bearing pin, wear described center shaft slidably away from described one end buckled;

Return springs, provides an elastic-restoring force in described control bearing pin, and described control bearing pin can be automatically reset after described center shaft internal slide; And

Limiting stopper, wears described center shaft and is fixedly connected with described control bearing pin, described limiting stopper along described center shaft axially slidably, and match with described position-limited trough and stop described central axis;

Wherein, described central axis and buckle rotation described in driving, until described in buckle and mount with described mounting matable assembly after, described limiting stopper matches with described position-limited trough and locks described center shaft under the effect of described return springs.

2. hitch assembly as claimed in claim 1, it is characterized in that, one end of described center shaft offers the axis hole that is positioned at end face and is positioned at the chute be connected on sidewall, with described axis hole, one end of described control bearing pin is contained in described axis hole slidably, and described limiting stopper is contained in described chute slidably.

3. hitch assembly as claimed in claim 2, is characterized in that, described return springs is to be contained in bottom described axis hole and to be sheathed on the upper Compress Spring of described control bearing pin.

4. hitch assembly as claimed in claim 1, it is characterized in that, described base offers the through hole passed for described center shaft, described position-limited trough comprises the periphery being positioned at described through hole, and spaced first groove portion and the second groove portion, described limiting stopper departs from from described first groove portion, and described center shaft is freely rotated, until when described limiting stopper turns to the position corresponding with described second groove portion, described buckling mounts firmly with described mounting matable assembly, described limiting stopper buckles described in matching with described second groove portion under the effect of described return springs and locking.

5. hitch assembly as claimed in claim 1, it is characterized in that, described base also offers the storage tank be communicated with described position-limited trough, described limiting stopper is free to rotate in described storage tank.

6. hitch assembly as claimed in claim 1, it is characterized in that, also comprise the pedestal be fixed on described adapter plate and the swivel block be fixed on described center shaft, described base is fixed on described pedestal, described pedestal offers host cavity, and described swivel block is free to rotate in described host cavity.

7. hitch assembly as claimed in claim 6, is characterized in that, also comprises being contained in described host cavity, being connected to floating shell fragment between described adapter plate and described swivel block.

8. hitch assembly as claimed in claim 7, it is characterized in that, also comprise and being sheathed on described center shaft and the wear-resistant gasket be contained in described host cavity, described wear-resistant gasket is connected between described floating shell fragment and described swivel block.

9. a rotary locking mechanism, for the first object and the second object being removably connected, is characterized in that, comprise:

Hitch assembly as described in any one of claim 1 ~ 8, described adapter plate is fixed on described first object; And

Mounting matable assembly, comprising:

Lifting plate, offer for described in buckle through through hole;

Promote cover plate, offer accepting groove, described lifting cover plate is fixedly connected with described lifting plate;

Wherein, described in buckle through described through hole, and be sticked in described accepting groove after rotating relative to described lifting plate;

Described lifting plate and/or lifting cover plate are fixed on described second object.

10. rotary locking mechanism as claimed in claim 9, it is characterized in that, described through hole comprises hole portion and is positioned at the breach of hole portion periphery, described in buckle and can pass from described breach.

11. rotary locking mechanisms as claimed in claim 10, it is characterized in that, described lifting plate is formed with lifting curved surface within it, and described lifting curved surface is positioned at described gap edge, described in buckle and slide in described breach along described lifting curved surface.

12. rotary locking mechanisms as claimed in claim 9, is characterized in that, the bottom of described accepting groove be provided with stop protruding, described in buckle and abut against with described stop projection after described accepting groove rotates dynamic predetermined angular and buckle rotation described in stoping.