CN114251552A

CN114251552A - Locking device and automatic reset mechanism thereof

Info

Publication number: CN114251552A
Application number: CN202111550913.7A
Authority: CN
Inventors: 孙育宁; 罗虎祥
Original assignee: Linxee (beijing) Technology Ltd
Current assignee: Linxee (beijing) Technology Ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-03-29

Abstract

The invention discloses a locking device and an automatic resetting mechanism thereof, wherein the locking automatic resetting mechanism comprises an outer sleeve, an inner sleeve and an inner bullet, the outer sleeve is provided with a central hole, the upper part of the inner sleeve is provided with a shaft shoulder, the lower end of the inner sleeve is provided with a blind hole, the inner sleeve is arranged in the central hole, the lower part of the inner sleeve is sleeved with an outer spring, the upper part of the inner bullet is arranged in the inner sleeve, the lower end of the inner bullet extends out of the inner sleeve, an inner spring is arranged in the blind hole, and two ends of the inner spring respectively abut against the top wall of the blind hole and the top surface of the inner bullet. According to the invention, in the process of unlocking the first member and the second member, as long as the lock hook is opened by the key, the automatic lock reset mechanism can upwards bounce the first member, even if the hand holding the key is loosened, the lock hook cannot be clamped into the lock hole due to the accumulated force of the torsion spring, the vacated hand can be matched with the other hand to respectively hold the first member and the second member to be pulled out, the assistance of other people is not required, and the use is convenient.

Description

Locking device and automatic reset mechanism thereof

Technical Field

The invention belongs to the technical field of locking devices, and particularly relates to a locking device and an automatic resetting mechanism thereof.

Background

A latching mechanism is a common structure for a detachable connection between two members. For example, the camera is inserted into the bracket, the lock hook is stressed to be opened, and after the assembly is in place, the lock hook is reset and buckled by the torsion spring. When the lock is pulled out, the lock core is rotated by a key, the lock hook is separated from the hook, the key needs to be kept still at the moment, then two products are pulled out, the key is loosened, and the lock hook is automatically reset by a torsion spring. This scheme needs one hand to hold the key motionless, prevents that torsion spring from taking the latch hook back to the normal position, consequently, another hand alone can't operate and pull out, needs another person to come the cooperation, uses inconveniently.

In view of the above, there is a need for an improved latching device and automatic reset mechanism thereof, which can facilitate the unlocking and extraction of two members by one person.

Disclosure of Invention

In view of the above-mentioned drawbacks, the present invention provides a locking device and an automatic reset mechanism thereof, so as to solve the problem that another person in the conventional locking device is inconvenient to use when pulling out the locking device.

Therefore, the automatic reset mechanism of the lock catch provided by the invention comprises:

the outer sleeve is provided with a central hole which is through along the axial direction, the inner wall of the upper end of the central hole is provided with an upper inner flange, and the inner wall of the lower end of the central hole is provided with a lower inner flange;

the outer circumference of the upper part of the inner sleeve is provided with a shaft shoulder, the lower end of the inner sleeve is provided with a blind hole, the shaft shoulder is matched with the central hole of the outer sleeve, the inner sleeve is arranged in the central hole, the lower part of the inner sleeve is sleeved with an outer spring, and two ends of the outer spring are respectively abutted against the shaft shoulder and the lower inner flange;

interior warhead is big-end-up's step axle form, the upper portion setting of interior warhead is in the inner skleeve, the lower extreme stretches out the inner skleeve, be equipped with the inner spring in the blind hole, the both ends of inner spring support respectively lean on the roof of blind hole and the top surface of interior warhead.

The invention also provides a locking device which is used for inserting and locking connection of a first component and a second component, and comprises a locking hook component and an automatic resetting mechanism used for automatic resetting of the locking hook component, wherein the automatic resetting mechanism adopts the locking automatic resetting mechanism, the locking hook component is arranged on the second component, and a locking hole matched with the locking hook component is arranged on the first component.

In the above technical solution, preferably, the latch hook assembly includes a lock cylinder and a torsion spring, and the lock cylinder includes:

a rotating body which is divided into a rotating portion and a driving portion in an axial direction, wherein the rotating portion is rotatably provided on the second member and has a keyhole on an outer end surface thereof, the driving portion has a cam profile surface, and an inner concave portion is provided on the cam profile surface;

the locking hook extends along the radial direction of the rotating body, the torsion spring is arranged on the rotating body, a first end of the torsion spring is fixed with the second component, and a second end of the torsion spring is fixed with the rotating body;

the outer sleeve is fixed on the second member, a through hole for extending or retracting the upper end of the inner sleeve is formed in the second member, and the lower end of the inner warhead is opposite to the cam profile surface.

In the above technical solution, preferably, the outer end face center of the driving portion is provided with a circular groove, the center of the circular groove is provided with a fixed shaft, the outer circumferential face of the driving portion is provided with a strip-shaped arm extending along the radial direction, the torsion spring is sleeved on the fixed shaft, and the second end of the torsion spring is fixed to the end of the strip-shaped arm.

In the above technical scheme, preferably, circular recess is equipped with the breach, the one end of breach is followed the bar arm is to its tip extension formation bar spacing arris, the second end of torsional spring certainly the breach stretches out, and by the bar spacing arris is spacing.

In the above technical solution, preferably, two first protruding blocks and two second protruding blocks which are oppositely arranged are arranged on the top surface of the second member, an inner groove is arranged on a side surface of the first protruding block facing the second protruding block, and an upper end of the locking hook is arranged in the inner groove.

In the above technical solution, preferably, a first slot and a second slot matched with the first protrusion and the second protrusion are provided on a bottom surface of the first member, and the lock hole is provided on an inner side surface of the first slot facing the second slot.

In the above technical solution, preferably, the first member is a camera, and the second member is a bracket.

In the above technical solution, preferably, the first member is a sound box, and the second member is a support.

In the above technical solution, preferably, an outer end of the rotating portion is provided with a rotating shaft, a diameter of the rotating shaft is smaller than a diameter of the rotating portion, and the rotating shaft is rotatably disposed on the second member.

According to the technical scheme, the locking device and the automatic resetting mechanism thereof solve the problem that in the prior art, one hand is required to hold the unlocking key to be fixed, and the torsion spring is prevented from bringing the locking hook back to the original position, so that another person is required to cooperatively pull out the first component, and the use is inconvenient. Compared with the prior art, the invention has the following beneficial effects:

in the process of unlocking the first member and the second member, as long as the lock hook is opened by a key, the automatic lock resetting mechanism can upwards bounce the first member, even if a hand holding the key is loosened, the lock hook cannot be clamped into the lock hole due to the accumulated force of the torsion spring, the vacated hand can be matched with the other hand to respectively hold the first member and the second member to be pulled out, the help of other people is not needed, and the use is convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments of the present invention or the prior art will be briefly described and explained. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is a cross-sectional view of an automatic latch return mechanism provided in the present invention;

FIG. 2 is a schematic view of a locking state of the locking device according to the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic view of the locking device according to the present invention in an open state;

FIG. 5 is an enlarged view of the portion B of FIG. 4;

FIG. 6 is a schematic view of the locking device according to the present invention in a separated state;

FIG. 7 is an enlarged view of the portion C of FIG. 6;

FIG. 8 is a schematic view of the latch device of the present invention in a reset state;

FIG. 9 is an enlarged view of section D of FIG. 8;

FIG. 10 is a perspective view of a rotary body according to the present invention;

FIG. 11 is a front view of a rotary body according to the present invention;

FIG. 12 is a schematic view of a camera and a bracket using the locking device of the present invention;

FIG. 13 is a schematic view of a speaker and a bracket using the locking device of the present invention;

FIG. 14 is a bottom view of the first member of the present invention;

FIG. 15 is a cross-sectional view of the valve of the first member of the present invention.

In fig. 1 to 15, the correspondence between the components is as follows:

the automatic return mechanism 100, the shackle assembly 200, the first member 300, the second member 400;

outer sleeve 110, inner sleeve 120, inner bullet 130, outer spring 140, inner spring 150;

an upper inner flange 111, a lower inner flange 112;

shoulder 121, blind hole 122;

the axial length of the upper shaft portion 131, the lower shaft portion 132,

a lock cylinder 210, a torsion spring 220;

the rotating body 211, the latch hook 212, the torsion spring 213,

a rotating portion 2111, a driving portion 2112, a cam profile 2113, an internal recess 2114, a circular groove 2115, a fixed shaft 2116, a bar-shaped arm 2117, a notch 2118 and a bar-shaped limit edge 2119;

a lock hole 301;

a first end 2311, a second end 2312;

a camera 401, a bracket 402, a sound box 403;

a first slot 310, a second slot 320;

a first bump 410, a second bump 420, an inner groove 430.

Detailed Description

The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.

In order to make the technical solution and implementation of the present invention more clearly explained and illustrated, several preferred embodiments for implementing the technical solution of the present invention are described below.

It should be noted that the terms of orientation such as "inside, outside", "front, back" and "left and right" are used herein as reference objects, and it is obvious that the use of the corresponding terms of orientation does not limit the scope of protection of the present invention.

Referring to fig. 1, fig. 1 is a cross-sectional view of an automatic lock resetting mechanism provided in the present invention.

As shown in FIG. 1, the automatic latch resetting mechanism provided by the invention comprises an outer sleeve 110, an inner sleeve 120 and an inner bullet 130.

The outer sleeve 110 has a central hole passing therethrough in the axial direction, and the central hole is provided at an upper end thereof with an upper inner flange 111 and at a lower end thereof with a lower inner flange 112. The upper inner flange 111 and the lower inner flange 112 are each an annular flange provided on the inner wall of the center hole to project toward the inside of the center hole.

The outer circumference of the upper part of the inner sleeve 120 is provided with a shaft shoulder 121, the diameter of the shaft shoulder 121 is matched with the central hole of the outer sleeve 110, and the lower end of the inner sleeve 120 is provided with a blind hole 122 with a downward opening. The inner sleeve 120 is disposed in the central hole of the outer sleeve 110, the outer spring 140 is sleeved on the lower portion of the inner sleeve 120, and two ends of the outer spring 140 respectively abut against the shoulder 121 and the lower inner flange 112 of the outer sleeve 110. The lower end of the inner sleeve 120 extends from the lower inner flange 112 and the upper end of the inner sleeve 120 may extend from the upper inner flange 111 under the influence of the outer spring 140.

The inner warhead 130 is in a stepped shaft shape with a large upper part and a small lower part, and is formed by combining an upper shaft part 131 with a large diameter and a lower shaft part 132 with a small diameter up and down, the upper shaft part 131 of the inner warhead 130 is arranged in the inner sleeve 120, the lower end of the inner warhead extends out of the inner sleeve 120, the inner spring 150 is arranged in the blind hole 122, and two ends of the inner spring 150 respectively abut against the top wall of the blind hole 122 and the top surface of the upper shaft part 131 of the inner warhead 130.

The automatic reset mechanism of the lock catch provided by the invention has two-stage telescopic function, can realize the one-hand pulling-out operation of the first component and the second component by matching with the lock catch component, is convenient to use, and the specific technical realization is explained in detail below by combining the lock catch device.

As shown in fig. 2, the present invention provides a locking device for inserting the first member 300 and the second member 400 into each other and locking and unlocking the first member 300 and the second member 400 by the locking device. The locking device comprises a locking hook assembly 200 and an automatic resetting mechanism 100 for automatically resetting the locking hook assembly 200, wherein the locking hook assembly 200 is arranged on a second member 400, and a locking hole 301 matched with the locking hook assembly is arranged on a first member 300. The automatic reset mechanism 100 adopts the above-mentioned automatic lock reset mechanism. The shackle assembly 200 includes a lock cylinder 210 and a torsion spring 220.

The key cylinder 210 includes a rotator 211 and a locking hook 212, and the locking hook 212 is matched with the locking hole on the first member 300 to realize locking and unlocking.

As shown in fig. 10 and 11, the rotating body 211 is divided into a rotating portion 2111 and a driving portion 2112 in the axial direction, and the rotating portion 2111 is rotatably provided on the second member 400 and provided with a keyhole (not shown) on the outer end surface thereof. Specifically, the outer end of the rotating portion 2111 is provided with a rotating shaft having a diameter smaller than that of the rotating portion 2111, which is rotatably provided on the second member 400.

The outer circumference surface of the driving part 2112 is provided with a cam profile surface 2113, and the lower end of the inner bullet 130 of the automatic lock catch resetting mechanism abuts against the cam profile surface 2113 and is used for driving the automatic lock catch resetting mechanism to move up and down. The lower portion of the cam profile 2113 is provided with an internal recess 2114.

The locking hook 212 extends radially outward along the outer circumferential surface of the rotating body 211 to form a strip shape, the torsion spring 213 is disposed on the rotating body 211, and the first end 2311 is fixed to the second member 400, and the second end 2312 is fixed to the rotating body 211 for automatically returning after the rotating body 211 rotates. Specifically, a circular groove 2115 is disposed at the center of the outer end surface of the driving portion 2112, a fixed shaft 2116 is disposed at the center of the circular groove 2115, a bar-shaped arm 2117 extending along the radial direction of the rotating body 211 is disposed on the outer circumferential surface of the driving portion 2112, the torsion spring 213 is sleeved on the fixed shaft 2116, a first end 2131 of the torsion spring 213 is fixed to the second member 400, and a second end 2132 of the torsion spring 213 is fixed to the end of the bar-shaped arm 2117.

In addition, the circular groove 2115 is provided with a notch 2118, one end of the notch 2118 extends to the end along the strip arm 2117 to form a strip-shaped limiting edge 2119, and the second end 2132 of the torsion spring 213 extends out of the notch 2118 and is limited by the strip-shaped limiting edge 2119.

The operation of the present invention will be described in detail with reference to fig. 2 to 9.

Fig. 2 and 3 show the first member 300 and the second member 400 in a locked state. The first member 300 is inserted into the second member 400, the locking hook 212 is locked in the locking hole 301 of the first member, and the first member 300 and the second member 400 are in a locked state. At this time, the lower end of the inner bullet 130 abuts against the cam profile 2113, the concave portion 2114 is located below the inner bullet 130, and the torsion spring 220 is in the initial position.

Fig. 4-9 are diagrams illustrating the process of unlocking the first member 300 and the second member 400, which are divided into three stages.

In the first stage, as shown in fig. 4 and 5, a key is inserted into the key hole of the rotating body 211, the rotating body 211 is rotated clockwise, the driving portion 2112 is rotated clockwise synchronously, and the torsion spring 220 stores energy until the locking hook 212 is disengaged from the locking hole. During this process, the inner bullet 130 is extended downward by the inner spring 150 and eventually its lower end snaps into the inner recess 2114 in the cam profile 2113. At this time, the key is released, and even if the hand holding the key is released and the torsion spring 220 has energy storage, the rotating body 211 does not rotate reversely (rotate counterclockwise) because the lower end of the inner bullet 130 is caught in the concave portion 2114.

In the second stage, as shown in fig. 6 and 7, following the first stage, the inner sleeve 120 moves upward under the action of the outer spring 140 until the shoulder 121 abuts against the upper inner flange 111 of the outer sleeve 110, and during this process, the upper end of the inner sleeve 120 gradually rises to lift the first member 300 and separate from the second member 400. At this time, the lower end of the inner bullet 130 is disengaged from the concave portion 2114, and the rotation body 211 is reversed (counterclockwise) by the torsion spring 220.

In the third stage, as shown in fig. 8 and 9, the first member 300 is pulled out upward, and the rotating body 211 is rotated counterclockwise to the initial position by the torsion spring 220.

As can be seen from the above description, in the process of unlocking the first member 300 and the second member 400, as long as the key is used to open the latch hook, the latch automatic-return mechanism will bounce the first member 300 upwards, and even if the hand holding the key is loosened, the latch hook will not be locked into the latch hole again due to the accumulated force of the torsion spring, and the released hand can be matched with the other hand to respectively hold the first member and the second member to be pulled out, so that the use is convenient without the help of other people.

The invention is suitable for the connection of the camera and the bracket and the connection of the sound box and the bracket.

As shown in fig. 12, the first member is a camera 401, the second member is a bracket 402, the latch hook assembly 200 is disposed in the bracket 402, the outer sleeve 110 of the automatic return mechanism 100 is fixed to the bracket 402, and a through hole is disposed on a top wall of the bracket 402 for extending an upper end of the inner sleeve 120 to jack up the camera 301.

As shown in fig. 13, the first member is a sound box 403, the second member is a bracket 402, the latch hook assembly 200 is disposed in the bracket 402, the outer sleeve 110 of the automatic reset mechanism 100 is fixed to the bracket 402, and a through hole is disposed on a top wall of the bracket 402 for extending an upper end of the inner sleeve 120 to jack up the sound box 302.

In the above structure, as shown in fig. 13, 14 and 15, the top surface of the second member 400 is provided with two first protrusions 410 and second protrusions 420 which are oppositely arranged, the side surface of the first protrusion 410 facing the second protrusion 420 is provided with an inner groove 430, and the upper end of the latch hook 212 is arranged in the inner groove 430. The first member 300 has a first slot 310 and a second slot 320 on the bottom surface thereof, the first slot 310 and the second slot 320 being adapted to the first protrusion 410 and the second protrusion 420, and the locking hole 301 is disposed on the inner side surface of the first slot 310 facing the second slot 320.

By combining the description of the above specific embodiments, the automatic reset mechanism of the lock catch provided by the invention has the following advantages compared with the prior art:

firstly, in the process of unlocking the first component and the second component, as long as the lock hook is opened by a key, the automatic lock resetting mechanism can upwards bounce the first component, even if a hand holding the key is loosened, the lock hook cannot be clamped into the lock hole due to the accumulated force of the torsion spring, the vacated hand can be matched with the other hand to respectively hold the first component and the second component to be pulled out, the help of other people is not needed, and the use is convenient.

Secondly, after the rotating body is rotated by a key until the lock hook is disengaged from the lock hole, the inner bullet extends downwards under the action of the inner spring, and finally the lower end of the inner bullet is clamped in the inner concave part on the cam profile surface. At this time, the key is loosened, and even if the hand holding the key is loosened, the torsion spring has energy storage, but the lower end of the inner bullet head is clamped in the concave part, the rotating body does not rotate reversely, so that the hand holding the key can be loosened. The device is realized through a simple structure and has unique functions.

Thirdly, in the plug-in mounting structure of the first member and the second member, an inner groove is formed in the side face, facing the second projection, of the first projection, and the upper end of the lock hook is arranged in the inner groove, so that the size is reduced.

Fourthly, in the mounting structure of torsional spring, the main part setting of torsional spring can prevent that the torsional spring from deviating from at circular recess, reduces the fault rate.

Fifthly, the side wall of the circular groove is provided with a notch, one end of the notch extends to the end part of the strip-shaped arm along the strip-shaped arm to form a strip-shaped limiting edge, the second end of the torsion spring stretches out of the notch and is limited by the strip-shaped limiting edge, the second end of the torsion spring is prevented from being disengaged, and the failure rate is further reduced.

Finally, it should also be noted that the terms "comprises," "comprising," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The present invention is not limited to the above-mentioned preferred embodiments, and any structural changes made under the teaching of the present invention shall fall within the scope of the present invention, which is similar or similar to the technical solutions of the present invention.

Claims

1. An automatic reset mechanism for a lock catch, comprising:

2. A locking device is used for inserting and locking connection of a first component and a second component, and comprises a locking hook component and an automatic resetting mechanism used for automatic resetting of the locking hook component, and is characterized in that the automatic resetting mechanism adopts the locking automatic resetting mechanism in claim 1, the locking hook component is arranged on the second component, and a locking hole matched with the locking hook component is formed in the first component.

3. The latching device of claim 2, wherein said latch hook assembly includes a latch core and a torsion spring, said latch core including:

4. The locking device as claimed in claim 3, wherein a circular groove is formed in the center of the outer end surface of the driving portion, a fixed shaft is formed in the center of the circular groove, a radially extending strip-shaped arm is formed on the outer circumferential surface of the driving portion, the torsion spring is sleeved on the fixed shaft, and the second end of the torsion spring is fixed to the end of the strip-shaped arm.

5. The locking device as claimed in claim 4, wherein the circular groove is provided with a notch, one end of the notch extends along the strip-shaped arm to the end portion thereof to form a strip-shaped limiting rib, and the second end of the torsion spring extends out of the notch and is limited by the strip-shaped limiting rib.

6. A latching mechanism as claimed in claim 2, wherein the second member has a top surface with two oppositely disposed first and second projections, the first projection having an inner groove on a side facing the second projection, the upper end of the latch hook being disposed in the inner groove.

7. The locking device as claimed in claim 6, wherein the first member has a first slot and a second slot on a bottom surface thereof, the first slot and the second slot being adapted to the first protrusion and the second protrusion, and the locking hole is disposed on an inner side of the first slot facing the second slot.

8. The latching device of claim 2, wherein the first member is a camera and the second member is a cradle.

9. A latching apparatus as claimed in claim 2, wherein the first member is a speaker and the second member is a cradle.

10. A latching apparatus as claimed in claim 3, wherein the outer end of the rotating portion is provided with a shaft having a diameter smaller than that of the rotating portion, and the shaft is rotatably disposed on the second member.