CN217470506U - Self-locking mechanism and security and protection equipment - Google Patents

Abstract

The utility model discloses a self-locking mechanism and security protection equipment, self-locking mechanism is used for taking the container of lid, and container and lid correspond the position and are provided with the locked groove, including retaining member, moving part and rotation piece, the retaining member is used for installing in the lid to have the locking state of restricting the lid to open relative to the container, the movably interlude of retaining member is located in the locked groove; the movable piece is arranged on the cover body in a movable switching mode between a first position and a second position so as to drive the locking piece to be inserted into the locking groove or withdraw from the locking groove; the rotating piece is used for being rotatably installed on the cover body and is in threaded connection with the moving piece and used for driving the moving piece to move and switch between the first position and the second position when the rotating piece rotates. The utility model discloses technical scheme prevents that security protection equipment from being dismantled at will.

Description

Self-locking mechanism and security and protection equipment

Technical Field

The utility model relates to a self-locking mechanism technical field, in particular to self-locking mechanism and security protection equipment.

Background

Intelligent security devices such as intelligent doorbells and intelligent cameras can provide intelligent communication and monitoring functions, and are widely applied to places such as houses and business offices. The intelligent doorbell and the intelligent camera equipment are generally placed outdoors or in places which can be contacted by other people, the battery bin or other detachable devices provided with the detachable covers are easily detached by other people at will, and the batteries or camera components in the devices are taken, so that articles are lost and property loss is caused; even the articles in the security equipment easily hurt the health of others, which is not beneficial to the placement and management of the articles.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a self-locking mechanism and security protection equipment, aim at preventing that security protection equipment from being dismantled at will.

In order to achieve the above object, the present invention provides a self-locking mechanism for a container with a cover, wherein a locking groove is disposed at a position corresponding to the container and the cover, the locking groove comprises a locking member, a moving member and a rotating member, the locking member is configured to be mounted in the cover and has a locking state for limiting the cover to open relative to the container, and the locking member is movably inserted into the locking groove; the movable piece is arranged on the cover body in a movable switching manner between a first position and a second position so as to drive the locking piece to be inserted into the locking groove or to exit from the locking groove; the rotating piece is used for being rotatably installed on the cover body, is in threaded connection with the moving piece and is used for driving the moving piece to move and switch between the first position and the second position when rotating.

In an embodiment, the locking member includes a connecting rod and a locking tongue disposed at one end of the connecting rod, the connecting rod is rotatably mounted on the cover, and the movable member is configured to drive the connecting rod to rotate, so that the locking tongue is inserted into and withdrawn from the locking groove.

In one embodiment, the connecting rod is provided with a rotating seat, and the rotating seat is rotatably mounted on the cover body through a fixing piece.

In one embodiment, the other end of the connecting rod is sleeved on the periphery of the rotating member.

In one embodiment, a bottom surface of one end of the connecting rod connected to the rotating member is higher than a top surface of one end of the connecting rod provided with the latch bolt.

In an embodiment, the self-locking mechanism further includes an elastic member, and the elastic member is sleeved on the outer periphery of the rotating member and located between the moving member and the connecting rod.

In one embodiment, the rotating member is provided with external threads, and the moving member is provided with internal threads; the cover body is provided with a positioning groove, and the rotating piece is inserted into the positioning groove and can rotate in the positioning groove.

In one embodiment, the cover body is provided with a through hole, and the inner side of the cover body is provided with an abutting surface; the rotating piece comprises a head part, a rod part and a limiting part, the head part is connected with the rod part, the rod part is used for being in threaded connection with the moving piece, and the limiting part is arranged at one end, close to the head part, of the rod part; the head is located in the through hole, and the limiting portion is abutted to the abutting surface.

In one embodiment, an end of the head portion away from the rod portion is provided with an embedded groove matched with a screwdriver or a polygonal hole groove matched with a wrench.

In one embodiment, the cover body is provided with a limiting groove, and the movable part is at least partially positioned in the limiting groove; and/or, the lid is equipped with spacing post, the moving part is equipped with the confession spacing hole that spacing post stretched into.

The utility model also provides a security protection device, which comprises a cover body, a container and a self-locking mechanism, wherein the self-locking mechanism is arranged on the cover body, and a locking piece of the self-locking mechanism is inserted into locking grooves of the container and the cover body; the self-locking mechanism is used for a container with a cover body, locking grooves are formed in corresponding positions of the container and the cover body, the self-locking mechanism comprises a locking piece, a moving piece and a rotating piece, the locking piece is used for being installed in the cover body and has a locking state for limiting the cover body to be opened relative to the container, and the locking piece is movably inserted into the locking grooves; the movable piece is arranged on the cover body in a movable switching manner between a first position and a second position so as to drive the locking piece to be inserted into the locking groove or withdraw from the locking groove; the rotating piece is used for being rotatably installed on the cover body, is in threaded connection with the moving piece and is used for driving the moving piece to move and switch between the first position and the second position when rotating.

The utility model discloses technical scheme rotates at the lid through rotating the piece, and the drive moving part removes between primary importance and second place and switches, and the movably interlude of retaining member is located in the locked groove, when the moving part is in the primary importance, the retaining member is inserted and is established in the locked groove of container and lid, and the retaining member is in the closure state to the restriction lid is opened for the container, prevents that container and lid from dismantling, makes by other people article in can not contacting the container at will, avoids the article in the container to lose on the one hand, and on the other hand prevents that the article in the container from hurting other people, does benefit to the management of article in the container.

When the movable piece is located at the second position, the locking piece withdraws from the locking groove, the locking state of the locking piece is released, and the cover body can be opened relative to the container. Because the rotating part can not extend out of the cover body along with the rotation when the cover body rotates, others can not know which direction the rotating part rotates and the number of times of rotation, and the moving part can be located at the second position, so that the self-locking of the container and the cover body is realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the security device of the present invention;

FIG. 2 is a schematic view of the cover of FIG. 1 shown separated from the container;

FIG. 3 is an exploded view of the security device of FIG. 1;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a schematic view of the structure of the rotating member, the movable member and the locking member shown in FIG. 3;

fig. 6 is a schematic structural view of an embodiment of the cover and container (locking member in locked state) of the present invention;

fig. 7 is a schematic structural view of an embodiment of the cover and the container (the locking and unlocking state of the locking member) according to the present invention;

fig. 8 is a exploded view of the lid and container of the present invention with the locking member in a locked position;

FIG. 9 is an enlarged view of a portion of FIG. 8 at B;

fig. 10 is a sectional view of the cover and the container (locking state of the locking member);

fig. 11 is a partial enlarged view at C in fig. 10.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Security and protection equipment	112	Second end
10a	Lock slot		120					Lock tongue
				20	Cover body	130	Rotating seat
20a	Through hole	200	Movable part
				21	Positioning column	200a	Limiting hole
21a	Locating slot	300	Rotating member
				22	Limiting groove	310	Head part
23	Limiting column	310a	Caulking groove
				30	Container with a lid	320	Rod part
30a	Containing groove		321					Thread segment
				30b	Channel groove		322		Positioning section
30c	Clamping groove	330	Limiting part
				100	Locking piece	400	Elastic piece
110	Connecting rod	500	Fixing piece
				111	First end

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiments of the present invention, the directional indications are only used for explaining the relative position relationship between the components, the motion situation, etc. under a certain posture (as shown in the drawings), and if the certain posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a self-locking mechanism.

In the embodiment of the present invention, please refer to fig. 1, fig. 3, fig. 6 to fig. 7, the self-locking mechanism is used for the container 30 with the cover 20, the container 30 and the cover 20 are provided with a locking groove 10a corresponding to each other, and includes a locking member 100, a movable member 200 and a rotating member 300, the locking member 100 is used for being installed in the cover 20 and has a locking state for limiting the cover 20 to be opened relative to the container 30, and the locking member 100 is movably inserted into the locking groove 10 a. Referring to fig. 5 to 7, the movable member 200 is disposed on the cover 20 and is movable between a first position and a second position to drive the locking member 100 to be inserted into the locking slot 10a or to exit from the locking slot 10a, and in the first position, the locking member 100 may be driven to be inserted into the locking slot 10 a; in the second position, retaining member 100 may be actuated to exit from locking slot 10 a. The rotating member 300 is configured to be rotatably mounted on the cover 20, and the rotating member 300 is threadedly connected to the movable member 200 for driving the movable member 200 to move between the first position and the second position during rotation.

Specifically, referring to fig. 1 to 3, the cover 20 is detachably connected to the container 30, and the cover 20 may be rotatably installed at one end of the container 30, so as to open and close the containing groove 30a of the container 30. The receiving groove 30a of the container 30 is formed by inwardly recessing one end of the container 30, and the receiving groove 30a is used for receiving articles, such as general articles like batteries and camera components, or other articles with dangerous properties.

The cap 20 and the container 30 may be coupled together by a screw thread or by other means. Referring to fig. 2, in an embodiment, one of the cover 20 and the container 30 is provided with a locking block (not shown), and the other is provided with a locking groove, so that the locking block is locked in the locking groove by rotating the cover 20 relative to the container 30, thereby closing the accommodating groove 30a of the container 30. Specifically, the inner wall of the cover 20 is provided with a latch, the outer wall of the container 30 is provided with a latch groove, the latch groove includes a channel groove 30b into which the latch extends and a latch groove 30c extending along the circumferential direction of the wall of the container 30, and the channel groove 30b can extend along the direction in which the cover 20 covers the container 30 and is communicated with the latch groove 30 c. The latch enters the latch groove through the passage groove 30b, and the cover body 20 is rotated relative to the container 30 such that the latch moves in the latching groove 30c, and the latching groove 30c latches the latch to prevent the latch from being separated from the latching groove 30c, thereby achieving the connection between the cover body 20 and the container 30. The cover 20 is removed in a manner opposite to that described above, the cover 20 is rotated relative to the container 30, and the latch moves in the retaining groove 30c and exits the retaining groove through the passage groove 30b, so that the cover 20 can be separated from the container 30.

Referring to fig. 3, locking grooves 10a are formed at corresponding positions of the container 30 and the cover 20, the locking grooves 10a are offset from the rotation axes of the container 30 and the cover 20, when the locking member 100 is inserted into the locking grooves 10a, the locking member 100 blocks the rotation of the cover 20, so that the cover 20 cannot be rotated, and the locking member 100 locks the cover 20 and the container 30 to prevent the cover 20 from being separated from the container 30.

Referring to fig. 6 to 7, when it is required to lock the cover 20 and the container 30, the locking member 100 is inserted into the locking groove 10a, and the locking member 100 is in a locked state, such that the cover 20 cannot rotate relative to the container 30 and the receiving groove 30a of the container 30 cannot be opened. When it is necessary to open the container 30, the locker 100 is withdrawn from the locking groove 10a, the locker 100 is unlocked, the locker 100 does not obstruct the rotation of the cover body 20 with respect to the container 30, and the container 30 can be opened by the rotation of the cover body 20.

The locker 100 is driven by the movable member 200 to be inserted into and withdrawn from the locking groove 10 a. Referring to fig. 8 to 11, the movable member 200 is mounted on the cover 20 and can be movably switched between a first position and a second position. When the movable member 200 moves to the first position, the movable member 200 drives the locker 100 to be inserted into the locking groove 10a, so that the locker 100 is in a locked state; when the movable member 200 moves to the second position, the movable member 200 drives the locker 100 out of the locking groove 10a to release the locking state, so that the cover body 20 can be rotated with respect to the container 30. It should be noted that the moving track of the movable member 200 may be a straight track, an arc track, or other tracks.

Referring to fig. 9 and 11, a rotating member 300 is rotatably mounted on the cover body 20, the rotating member 300 is in threaded connection with the movable member 200, and the movable member 200 is driven to move to the first position by rotating the rotating member 300 in one direction and a predetermined number of turns, so that the locking member 100 is inserted into the locking groove 10 a; if the rotating member 300 is rotated in the reverse direction and another predetermined number of rotations, the movable member 200 is driven to move to the second position, so that the locker 100 is withdrawn from the locking groove 10 a. Referring to fig. 1 and 3, the cover 20 is provided with a through hole 20a, and one end of the rotating member 300 is located in the through hole 20a, so that a user can drive the rotating member 300 to rotate to realize the locking member 100 in the locked state and the unlocked state.

The utility model discloses technical scheme rotates at lid 20 through rotating piece 300, and drive moving part 200 moves between primary importance and second place and switches, and the movably interlude of retaining member 100 is located in the locked groove 10a, when moving part 200 was in the primary importance, retaining member 100 was inserted and is established in the locked groove 10a of container 30 and lid 20, and retaining member 100 is in the closure state to restriction lid 20 is opened for container 30, prevents container 30 and lid 20 and dismantles, makes the article that can not contact at will in the container 30 by others, avoids the article in the container 30 to lose on the one hand, and on the other hand prevents that the article in the container 30 from hurting others, does benefit to the management of article in the container 30.

When the movable member 200 is at the second position, the locker 100 is withdrawn from the locking groove 10a, the locker 100 is unlocked, and the cover 20 can be opened with respect to the container 30. Because the rotating member 300 does not extend out of the cover 20 along with the rotation when the cover 20 rotates, others can not know which direction the rotating member 300 rotates and how many rotation turns, and the movable member 200 can be located at the second position, so that the container 30 and the cover 20 are self-locked.

Referring to fig. 9 and 11, in an embodiment, the locking member 100 includes a connecting rod 110 and a locking tongue 120 disposed at one end of the connecting rod 110, the connecting rod 110 is rotatably mounted on the cover 20, and the movable member 200 is configured to drive the connecting rod 110 to rotate, so that the locking tongue 120 is inserted into and withdrawn from the locking groove 10 a.

Referring to fig. 1, 6 to 7, the connecting rod 110 is rotatably installed inside the cover 20, one end of the connecting rod 110 is provided with the latch 120, and the other end is driven by the movable member 200 to swing the connecting rod 110, so that the latch 120 is inserted into and withdrawn from the latch slot 10a to latch or release the cover 20 and the container 30. It is understood that the connecting rod 110 and the movable member 200 may be elastically connected or may be non-elastically connected, as will be described in detail below.

Further, referring to fig. 5 to 6, in an embodiment, the connecting rod 110 is provided with a rotating seat 130, and the rotating seat 130 is rotatably mounted on the cover 20 through a fixing member 500. The fixing member 500 may be a pin, and the fixing member 500 is installed in the cover body 20 through the rotating seat 130, and the locker 100 is installed in the cover body 20. Specifically, the rotating base 130 is rotatable on the fixing member 500, so that the locker 100 is rotated about the fixing member 500, and the locking tongue 120 of the locker 100 is inserted into and withdrawn from the locking groove 10 a.

In order to improve the swing stability of the connecting rod 110 and prevent the latch 120 from being inserted into the locking slot 10a, referring to fig. 6 and 9, in an embodiment, the other end of the connecting rod 110 is sleeved on the outer circumference of the rotating member 300. The movable element 200 may also be sleeved on the outer periphery of the rotating element 300, and the movable element 200 may be close to the through hole 20a relative to the connecting rod 110, or far from the through hole 20a relative to the connecting rod 110.

Referring to fig. 5, 9 and 11, the connecting rod 110 has a first end 111 provided with the latch 120 and a second end 112 sleeved on the rotating member 300, and moves up and down on the rotating member 300 through the movable member 200, so as to drive the second end 112 of the connecting rod 110 to move, so that the first end 111 of the connecting rod 110 is close to and away from the locking groove 10a, and the latch 120 provided on the connecting rod 110 is inserted into and withdrawn from the locking groove 10 a. Since the second end 112 is sleeved on the outer circumference of the rotating member 300, the second end 112 moves on the rotating member 300, and the moving direction and position of the connecting rod 110 are limited, so that the latch tongue 120 arranged at the first end 111 can be stably inserted into the locking groove 10a, and finally, the swinging stability of the connecting rod 110 and the locking reliability of the locking member 100 are improved.

The connecting rod 110, the locking tongue 120 and the rotating base 130 may be integrally provided, and the first end 111 and the second end 112 of the connecting rod 110 may be located in the same horizontal direction, or may not be located in the same horizontal direction. Referring to fig. 5, 8 to 9, in an embodiment, a bottom surface of one end of the connecting rod 110 connected to the rotating member 300 is higher than a top surface of one end of the connecting rod 110 provided with the locking tongue 120.

Referring to fig. 9, in the locked state, the second end 112 is higher than the first end 111 corresponding to the plane of the cover 20 where the locking slot 10a is located, and the first end 111 is closer to the locking slot 10a than the second end 112, so as to further improve the stability and reliability of the locking member 100. Meanwhile, the second end 112 has a larger pressing space, so that the first end 111 is tilted, and the locking tongue 120 at the first end 111 smoothly exits the locking groove 10 a.

Referring to fig. 6 to 7, in an embodiment, the self-locking mechanism further includes an elastic member 400, and the elastic member 400 is sleeved on an outer circumference of the rotating member 300 and is located between the movable member 200 and the connecting rod 110.

Referring to fig. 6 to 7 and 9, the elastic element 400 may be a spring, and the elastic element 400 is sleeved on the outer circumference of the rotating element 300 and is located between the moving element 200 and the connecting rod 110. When the movable element 200 moves to the second position, the movable element 200 moves toward the connecting rod 110, and the elastic element 400 is extruded and deformed by the movable element 200 and presses the second end 112 of the connecting rod 110 downward, so that the first end 111 tilts, the latch tongue 120 at the first end 111 exits from the latch slot 10a, and the unlocking operation is realized; when the movable member 200 moves to the first position, the movable member 200 is away from the connecting rod 110, the elastic member 400 is elastically restored, the elastic member 400 may have no pressure on the second end 112 of the connecting rod 110, so that the connecting rod 110 rotates, the second end 112 of the connecting rod 110 swings upward, the first end 111 of the connecting rod 110 is lowered, and the latch tongue 120 at the first end 111 is inserted into the latch slot 10 a.

In order to improve the driving stability of the elastic element 400 on the connecting rod 110, referring to fig. 8 to 9, in an embodiment, the elastic element 400 is connected to the second end 112 of the connecting rod 110. The connection between the elastic member 400 and the connecting rod 110 may be achieved by various methods, such as bonding or clamping.

Referring to fig. 3 to 4 and 9, in an embodiment, the rotating member 300 is provided with an external thread, and the moving member 200 is provided with an internal thread; the cover 20 has a positioning groove 21a, and the rotating member 300 is inserted into the positioning groove 21a and is rotatable in the positioning groove 21 a.

Referring to fig. 3 to 5, the cover 20 has a positioning column 21, the positioning column 21 has a positioning slot 21a, one end of the rotating member 300 is exposed to the through hole 20a, the other end of the rotating member rotates in the positioning slot 21a, and the positioning slot 21a limits the moving range of the rotating member 300, so as to improve the moving reliability of the moving member 200 and prevent the rotating member 300 from falling into the cover 20. The elastic element 400 and the second end 112 of the connecting rod 110 are sleeved on the periphery of the rotating element 300 and can be located on the periphery of the positioning column 21, so that the positioning column 21 guides the movement of the elastic element 400 and the connecting rod 110, and the stability and reliability of the bolt 120 inserted into and withdrawn from the locking groove 10a are further improved.

To avoid the rotating member 300 from being pulled out, please refer to fig. 5 and 9, in an embodiment, an abutting surface is disposed inside the cover body 20; the rotating member 300 includes a head portion 310, a rod portion 320 and a limiting portion 330, the head portion 310 is connected to the rod portion 320, the rod portion 320 is used for being screwed with the moving member 200, and the limiting portion 330 is disposed at one end of the rod portion 320 close to the head portion 310; the head portion 310 is located in the through hole 20a, and the limiting portion 330 abuts against the abutting surface, so as to prevent the rotating member 300 from being pulled out of the cover body 20 from the through hole 20 a.

With reference to fig. 5 and 9, the limiting portion 330 is closer to the head portion 310 than the thread on the rod portion 320, so that when the head portion 310 is located in the through hole 20a of the cover body 20, the limiting portion 330 abuts against the periphery of the through hole 20a to perform a stopping function, thereby preventing the rotating member 300 from being pulled out of the cover body 20 from the through hole 20a by a person. The size of the position-limiting portion 330 is larger than the diameter of the through hole 20a, so that the position-limiting portion 330 cannot be abutted by the periphery of the through hole 20 a. The outer diameter of the stem 320 may or may not be uniform.

Referring to fig. 5, the rod portion 320 includes a threaded section 321 and a positioning section 322, one end of the threaded section 321 is connected to the head portion 310, the other end of the threaded section 321 is connected to the positioning section 322, and the limiting portion 330 is located at one end of the threaded section 321 close to the head portion 310. With reference to fig. 5 and fig. 9, the threaded segment 321 is provided with an external thread, the positioning segment 322 is used for being inserted into the positioning slot 21a, an outer diameter of the threaded segment 321 is larger than an outer diameter of the positioning segment 322, and a notch of the positioning slot 21a is smaller than the outer diameter of the threaded segment 321, so as to position the rod portion 320.

Referring to fig. 1, 3 and 5, in an embodiment, an end of the head portion 310 away from the shaft portion 320 is provided with an insertion groove 310a for engaging with a screwdriver or a polygonal groove for engaging with a wrench. The recessed groove 310a may be a cross-shaped groove or a straight groove, and the polygonal hole groove may be an inner four-corner groove or an inner hexagonal groove, and the screwdriver is inserted into the through hole 20a to be engaged with the recessed groove 310a, or the wrench is inserted into the through hole 20a to be engaged with the polygonal hole groove, so as to drive the rotating member 300 to rotate, thereby driving the movable member 200 to move between the first position and the second position.

Since the rotating member 300 is connected to the moving member 200 by a screw thread, in order to avoid the rotating member 300 driving the moving member 200 to rotate, referring to fig. 4 to 5 and 9, in an embodiment, the cover body 20 is provided with a limiting groove 22, and the moving member 200 is at least partially located in the limiting groove 22 to limit the moving member 200 to rotate.

Referring to fig. 4 to 6, one end of the movable member 200 is disposed through the outer periphery of the rotating member 300, and the other end is located in the limiting groove 22, so that when the rotating member 300 rotates, the limiting groove 22 limits the two sides of the movable member 200, thereby limiting the movable member 200 from rotating along with the rotating member 300, and further converting the rotating motion into a linear motion, thereby realizing the movement switching of the movable member 200 from the first position to the second position. The end of the movable member 200 located in the limiting groove 22 may be disposed in an arc shape, and accordingly, the limiting groove 22 is provided with an arc surface adapted to the end to limit the rotation of the movable member 200.

Referring to fig. 4 to 5 and 9, in an embodiment, the cover 20 is provided with a limiting post 23, and the movable member 200 is provided with a limiting hole 200a for the limiting post 23 to extend into so as to limit the rotation of the movable member 200. The limiting column 23 deviates the center position of the moving member 200, one end of the moving member 200 penetrates through the periphery of the limiting column 23, the other end of the moving member 200 is sleeved on the rotating member 300, and when the rotating member 300 rotates, the limiting column 23 limits the rotation of the moving member 200, so that the moving member 200 moves along the extending direction of the rotating member 300, and the linear operation of the moving member 200 is realized. It will be appreciated that the retaining post 23 may be provided on the bottom of the retaining groove 22; the position-limiting column 23 may be arranged cylindrically.

Please refer to fig. 1 to fig. 3, the present invention further provides a security device 10, wherein the security device 10 includes a cover 20, a container 30 and a self-locking mechanism, the self-locking mechanism is installed on the cover 20, a locking member 100 of the self-locking mechanism is inserted into a locking groove 10a of the container 30 and the cover 20, the specific structure of the self-locking mechanism refers to the above embodiments, and the security device 10 adopts all technical solutions of all the above embodiments, so that all the beneficial effects brought by the technical solutions of the above embodiments are at least achieved, and are not repeated herein.

The security device 10 may be a camera device, a doorbell device, etc., and referring to fig. 5 to 7, the locking member 100 of the self-locking mechanism is used to be inserted into and withdrawn from the locking groove 10a to lock and release the cover 20 with the container 30. The movable piece 200 of the self-locking mechanism is arranged on the cover body 20 and can be movably switched between a first position and a second position so as to drive the locking piece 100 to be inserted into and withdrawn from the locking groove 10 a; the movable member 200 is screwed with the rotating member 300, and the rotating member 300 rotates to drive the movable member 200 to move between the first position and the second position, so that the movable member 200 moves.

The above is only the optional embodiment of the present invention, and not the scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims (11)

1. The utility model provides a self-locking mechanism for take the container of lid, container and lid correspond the position and are provided with the locked groove, its characterized in that includes:

the locking piece is used for being arranged in the cover body and has a locking state for limiting the cover body to be opened relative to the container, and the locking piece is movably inserted in the locking groove;

the movable piece is arranged on the cover body in a movable switching mode between a first position and a second position so as to drive the locking piece to be inserted into the locking groove or withdraw from the locking groove; and

the rotating piece is used for being rotatably installed on the cover body, is in threaded connection with the moving piece and is used for driving the moving piece to move and switch between the first position and the second position when rotating.

2. The self-locking mechanism of claim 1, wherein the locking member includes a connecting rod and a locking tongue disposed at one end of the connecting rod, the connecting rod is rotatably mounted to the cover, and the movable member is configured to drive the connecting rod to rotate so that the locking tongue is inserted into and withdrawn from the locking groove.

3. The self-locking mechanism of claim 2, wherein the linkage is provided with a rotating seat, and the rotating seat is rotatably mounted to the cover by a fixing member.

4. The self-locking mechanism of claim 2, wherein the other end of the connecting rod is sleeved on the outer periphery of the rotating member.

5. The self-locking mechanism of claim 4, wherein a bottom surface of an end of the connecting rod connected to the rotation member is higher than a top surface of an end of the connecting rod provided with the locking tongue.

6. The self-locking mechanism of claim 4, further comprising an elastic member disposed around the rotating member and between the moving member and the connecting rod.

7. The self-locking mechanism of any one of claims 1 to 6, wherein the rotating member is provided with external threads and the moving member is provided with internal threads; the cover body is provided with a positioning groove, and the rotating piece is inserted into the positioning groove and can rotate in the positioning groove.

8. The self-locking mechanism according to any one of claims 1 to 6, wherein the cover body is provided with a through hole, and an abutting surface is arranged on the inner side of the cover body;

the rotating piece comprises a head part, a rod part and a limiting part, the head part is connected with the rod part, the rod part is used for being in threaded connection with the moving piece, and the limiting part is arranged at one end, close to the head part, of the rod part; the head is located in the through hole, and the limiting portion is abutted to the abutting surface.

9. The self-locking mechanism of claim 8, wherein the end of the head portion remote from the shaft portion is provided with a caulking groove for engagement with a screwdriver or a polygonal hole groove for engagement with a wrench.

10. The self-locking mechanism of any one of claims 1 to 6, wherein the cover is provided with a limiting groove, and the movable member is at least partially positioned in the limiting groove; and/or the presence of a gas in the atmosphere,

the cover body is provided with a limiting column, and the moving part is provided with a limiting hole for the limiting column to extend into.

11. A security device, comprising a cover, a container and the self-locking mechanism of any one of claims 1 to 10, wherein the self-locking mechanism is mounted on the cover, and a locking member of the self-locking mechanism is inserted into the locking grooves of the container and the cover.

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