CN217501347U - Locking structure of protective lock - Google Patents

Abstract

The utility model discloses a locking structure of a protective lock, which comprises a first locking piece and a second locking piece, wherein the second locking piece comprises a locking notch, and the first locking piece comprises an interlocking part; the third locking piece is telescopically and movably arranged along the connecting line direction of the locking wall of the second main body and the locking surface of the first main body, a matching gap is formed between the third locking piece and the first main body or the second main body, or the third locking piece or the fourth locking piece is provided with a circular cross section so as to form a pivotable locking matching relation. The utility model discloses a locking structure can provide and can form locking or unblock relation and still allow relative pivot in order to adjust the angular relation between two main parts under the locking state.

Description

Locking structure of protective lock

Technical Field

The utility model belongs to the technical field of daily necessities, concretely relates to locking structure that can be used to on all kinds of protective articles for use or the protection lock.

Background

With the progress of the urbanization process in China and the change of the life style of people, more and more people enter cities to live, correspondingly, children grow in high-rise residences, and correspondingly, the safety protection of the children at home becomes especially important. The life often can not see the event that the child plays and causes the potential safety hazard after the parents walk away.

A wide variety of child-resistant locks are thus introduced, such as cabinet locks for locking cabinets against opening by children, window locks for locking windows against opening by children, and the like. Generally, a protective lock is composed of two parts, and two main body parts are respectively fixed on two parts of an object to be protected, so that the two parts of the object are locked and protected. However, due to the functional difference of the protected articles or the shape difference of different manufacturers of the same object, the protection lock often needs to be designed correspondingly, and the universality is not high.

The angle of locking engagement between the two bodies is particularly important, particularly for a guard lock. Nowadays, the main body is shaped to form a specific locking engagement angle, which results in a complicated structure of the protection lock and high design and manufacturing costs.

Therefore, there is a need to develop a lock structure with a locking function, which can allow the two bodies to have a relative pivot relationship to match the differences in appearance caused by different models or manufacturers of the same article, or the differences in the structural design requirements of the protective lock caused by the differences in the shape and structure of different articles, and which has a wide adaptability.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a locking structure of protection lock that can form locking or unblock relation and two locked main parts still allow relative pivot in order to adjust the angular relation between two main parts under the locking state.

In order to achieve the purpose, the utility model adopts the following scheme:

a locking structure of a protective lock comprises a first locking piece and a second locking piece which are respectively arranged on a first main body and a second main body, wherein the first locking piece and the second locking piece are mutually matched to lock or unlock the first main body and the second main body.

The second locking piece comprises a locking notch, and the first locking piece comprises a locking part which can extend into the locking notch; the locking notch is provided with at least one locking wall, and the locking part is correspondingly provided with a locking surface. The first main body and the second main body are respectively provided with a third locking piece and a fourth locking piece which are matched with each other, and the third locking piece is telescopically and movably arranged along the direction of the connecting line of the locking wall and the locking surface so as to be matched between the first locking piece and the second locking piece to lock or unlock the first locking piece and the second locking piece.

And a fit clearance is formed between the third locking piece and the first main body or the second main body, or the third locking piece or the fourth locking piece is provided with a circular cross section, so that the third locking piece and the fourth locking piece form a pivotable locking fit relation, and the third locking piece and the fourth locking piece can pivot around the third locking piece as an axis in a locking state to adjust the angular relation between the two main bodies.

According to the locking structure, the third locking piece is telescopically arranged on the second main body, the locking wall is provided with the locking hole, and the third locking piece is telescopically and movably arranged in the locking hole and extends into the locking hole to be matched with the locking part or retracts to be separated from the locking part. The locking part is provided with two oppositely arranged locking surfaces, at least one locking surface is provided with a locking groove which is used for forming a fourth locking part, the locking groove penetrates through the locking part or does not penetrate through the locking part, and the third locking part extends into the locking groove to lock the first body and the second body. Wherein, the relative arrangement means that the two locking surfaces are arranged substantially in parallel.

According to the locking structure, the outer side of the first main body is provided with the lock seat, and the inner side of the first main body is provided with the notch; the first locking piece is arranged on the inner side of the first main body, and the notch is positioned on at least one side of the first locking piece; the first locking piece is perpendicular to the bottom surface of the first main body, and the top of the locking part is provided with a guide surface.

According to the locking structure, the second main body further comprises an unlocking piece used for driving the third locking piece to stretch and move in the locking hole, the unlocking piece comprises a locking tongue piece, an actuating piece and a return spring, the third locking piece is arranged on the locking tongue piece or connected with the locking tongue piece, and the return spring acts on the locking tongue piece to enable the third locking piece to keep extending trend.

According to the locking structure, the number of the unlocking parts is two, each bolt piece is provided with a hole groove for matching with the actuating part of the other unlocking part, and the return spring is arranged between the two bolt pieces or between each bolt piece and the second main body so as to keep the bolt pieces in an extending trend.

According to the above locking structure, the third locking member is disposed on the first body, and is telescopically disposed with respect to the locking surface; the locking wall is provided with a locking hole which is used for forming a fourth locking piece, and the third locking piece extends into the locking hole to be matched with the locking hole or retracts from the locking hole to be unlocked.

According to the locking structure, the third locking parts are arranged on the first locking part in an opposite direction, and a spring is arranged between the third locking part and the first locking part to keep the third locking part extending. The second locking piece is provided with an unlocking piece which is movably arranged, and the unlocking piece extends to the lock hole to act on the third locking piece so as to be separated from the lock hole.

According to the locking structure, the unlocking piece and the third locking piece act on the third locking piece through interference action or magnetic repulsion, so that the third locking piece retracts to be separated from the lock hole.

According to the locking structure, the number of the third locking parts is two, the third locking parts are arranged on the first locking parts in an opposite direction, and a spring is arranged between the third locking parts and the first locking parts to enable the third locking parts to keep retracting.

The second locking piece is provided with a movably arranged unlocking piece which extends to the locking hole; the third locking piece and the unlocking piece are respectively provided with magnetism and have opposite magnetic poles; after the locking part is matched with the locking opening, the third locking part is magnetically attracted by the unlocking part to extend into the locking hole to lock the first main body and the second main body; after the unlocking piece is displaced, the magnetic force is weakened, and the spring drives the third locking piece to retract so as to be disengaged from the lock hole.

According to any one of the above locking structures, the unlocking member is movably disposed parallel to or perpendicular to the locking wall.

The utility model discloses a locking structure forms through fore shaft and lock portion and is similar to unsmooth complex being connected with the relation between two main parts to third locking piece locking lock portion and fore shaft that set up through scalable activity form stable locking relation, and can allow to be pivoted between two main parts of being locked, with the concrete requirement of matching the same or different protected article.

The utility model discloses in, a third locking piece for locking or unblock both can set up in first main part, also can set up in the second main part to can the different protection of adaptation lock the structure setting requirement, also can enrich the structure or the appearance design space of same type protection lock, provide the protection lock that has different structures, appearance or operation mode.

Furthermore, the locking structure of the present invention, the third locking member for forming the locking relationship, may be urged by physical interference, or may be magnetically attracted or repelled to drive. Therefore, the exposed explicit protection lock of the unlocking key can be formed, and the hidden protection lock can be driven to be opened and closed through magnetism.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;

FIG. 2 is a schematic structural view of a second body of the embodiment of FIG. 1;

FIG. 3 is an exploded view of the second body of the embodiment of FIG. 1;

FIG. 4 is a schematic structural diagram of a first body of the embodiment of FIG. 1;

fig. 5 is a schematic structural diagram of a second embodiment of the present invention;

FIG. 6 is an exploded view of the embodiment of FIG. 5 in an unlocked state;

FIG. 7 is a schematic structural diagram of the first body of the embodiment of FIG. 5;

FIG. 8 is a cross-sectional view of FIG. 7;

FIG. 9 is a schematic structural view of the first body of the embodiment of FIG. 5 with the third locking element retracted;

FIG. 10 is an exploded view of the second body of the embodiment of FIG. 5;

fig. 11 is a schematic diagram of the cooperation of the third embodiment of the present invention;

FIG. 12 is an exploded view of the embodiment of FIG. 11 in an unlocked state;

FIG. 13 is a schematic structural view of a second body of the embodiment of FIG. 11;

FIG. 14 is an exploded view of the second body of the embodiment of FIG. 11;

FIG. 15 is a schematic structural view of the first body of the embodiment of FIG. 11;

FIG. 16 is a cross-sectional view of the first body of FIG. 15 with the spring not shown;

fig. 17 is an exploded view of a second body according to a fourth embodiment of the present invention;

fig. 18 is a schematic view of the unlocking member of the embodiment of fig. 17.

Detailed Description

In order to better understand the invention for those skilled in the art and to define the scope of the invention more clearly, the invention will be described in detail below with respect to certain specific embodiments of the invention. It should be noted that the following description is only a few examples of the present invention, and the specific and direct descriptions of the related structures are only for the convenience of understanding the present invention, and the specific features do not naturally and directly limit the scope of the present invention. Conventional alternatives and substitutions made by those skilled in the art in light of the teachings of the present disclosure should be considered as within the scope of the present disclosure.

A locking structure for use in a child resistant lock to effect locking or unlocking while allowing relative pivotal movement between the bodies to adjust the angle of engagement between the bodies.

The locking structure comprises a first locking piece 11 and a second locking piece 21 which are respectively arranged on the first main body 100 and the second main body 200, wherein the first locking piece 11 and the second locking piece 21 are mutually matched to lock or unlock the first main body 100 and the second main body 200, and the matching relation of locking or unlocking between the two main bodies is realized.

The second locking member 21 comprises a locking notch 211, and the first locking member 11 comprises a locking part 111 which can extend into the locking notch 211; the locking notch 211 has at least one locking wall 212, and the locking portion 111 is correspondingly provided with a locking surface 110. The first body 100 or the second body 200 is respectively provided with a third locking piece 31 and a fourth locking piece which are mutually matched, and the third locking piece 31 is telescopically and movably arranged along the connecting line direction of the locking wall 212 and the locking surface 110 so as to be matched between the first body 100 and the second body 200 for locking or unlocking.

A fitting gap is formed between the third locking piece 31 and the first body 100 or the second body 200, or the third locking piece 31 or the fourth locking piece has a circular cross section so that the third locking piece 31 and the fourth locking piece form a pivotable locking fitting relationship.

Example one

A locking structure is composed of a first body 100 and a second body 200, which are respectively used for being fixed on two relatively movable components, such as a door and a door frame, a window and a window frame and the like. Preferably, the locking structure of the present embodiment is preferably applied to a scenario in which the opening is pivoted, such as a door or a casement window.

As shown in fig. 1, the locking structure includes a first locking member 11 and a second locking member 21 respectively disposed on the first body 100 and the second body 200, and the first locking member 11 and the second locking member 21 are engaged with each other to lock or unlock the first body 100 and the second body 200. When the two are matched and locked, a locking relation with components such as doors or windows is formed, and when the two are separated, the two restore free movement.

The locking is the locking for pivoting opening between the two main bodies, and does not mean complete locking and no relative displacement or movement can be caused; for example, in the case of forming the above-described locking relationship, the first body 100 and the second body 200 may be allowed to pivot about the third locking piece 31, thereby adjusting the angular relationship between the bottom surfaces of the two bodies; alternatively, the two are allowed to have activities that do not slightly affect the locking function based on the size difference.

As shown in fig. 2, the second locking member 21 includes a locking notch 211, the locking notch 211 has at least one locking wall 212, and the locking wall 212 is provided with a locking hole 213.

As shown in fig. 4, the first locking member 11 includes a locking portion 111 that can protrude into the locking notch 211; the lock portion 111 is provided with a lock surface 110 corresponding to the lock wall 212.

In the present embodiment, the locking wall 212 has two opposite surfaces, and the locking surface 110 is two parallel opposite surfaces of the locking portion 111; also, the distance between the two lock walls 212 is greater than or equal to the distance between the two lock surfaces 110, so that the lock portion 111 can be fitted into the lock notch 211.

As shown in fig. 3, the third locking member 31 is telescopically disposed on the second body 200, and the third locking member 31 is telescopically disposed in the locking hole 213, and extends into the locking opening 211 to engage with the locking portion 111 or retracts to separate from the locking portion 111, so as to lock or unlock the first locking member 11 and the second locking member 21.

Accordingly, each locking surface 110 is provided with a locking groove 112 as a fourth locking member, the locking groove 112 is disposed without penetrating the locking portion 111, and the third locking member 31 extends into the locking groove 112 to lock the first body 100 and the second body 200.

The third locking member 31 is cylindrical in shape and the width of the locking groove 112 is greater than or equal to the diameter of the third locking member 31 to form a locking and pivot-permitting fit.

The second main body 200 is formed by matching a second main body cover 201 and a second main body base 202, a cavity is formed between the second main body cover 201 and the second main body base 202 for the unlocking member 22 to be arranged in, and the second main body cover 201 and the second main body base 202 can be integrated in a clamping manner, a screw fixing manner and the like.

As shown in fig. 3, the second body 200 further includes an unlocking element 22 for driving the third locking element 31 to move telescopically in the locking opening 211, the unlocking element 22 includes a locking tongue 221, an actuating element 222 and a return spring, the third locking element 31 is disposed on or connected to the locking tongue 221, and the return spring acts on the locking tongue 221 to keep the third locking element 31 in an extending trend.

In this embodiment, there are two unlocking elements 22, and each latch member 221 has a hole 223 for the actuator 222 of the other unlocking element 22 to cooperate with, and the return spring is disposed between the two latch members 221 or between each latch member 221 and the second body 200.

As shown in fig. 4, a lock seat 101 is disposed on the outer side of the first body 100, and a notch 102 is formed on the inner side; the first locking member 11 is disposed inside the first body 100, and the notch 102 is located on two sides of the first locking member 11; the first locking member 11 is disposed perpendicular to the bottom surface of the first body 100. The top of the locking portion 111 is provided with a guide surface 113, and the guide surface 113 is an inclined surface or a curved surface to guide the third locking member 31 when the third locking member 31 is fitted into the locking groove 112, so that the third locking member 31 is retracted to achieve automatic fitting without operating the unlocking member 22.

Preferably, in the present embodiment, the locking groove 112 is elongated and disposed along the extending direction of the lock portion 111, and is disposed to be generally perpendicular or substantially overlapped with the bottom surface of the first body 100. Accordingly, the second locking member 21 is disposed along the side of the second body 200.

The working process of the locking structure of the embodiment is as follows:

in the initial state, the two third locking members 31 are kept in the extended state by the spring, and the first locking member 11 and the second locking member 21 approach each other when the first body 100 is pivoted to close with the door or window. The third locking member 31 is brought into contact with and retracted by the guide surface 113 until the third locking member 31 engages the lock recess 112 and is extended by the spring action to form a locking relationship.

When unlocking is required, a force is applied to the unlocking member 22 to retract the third locking member 31, and the third locking member 31 is disengaged from the locking groove 112 to unlock the first body 100 and the second body 200, so that the locked bodies such as the door or the window are restored to a free state.

Example two

A locking structure is composed of a first body 100 and a second body 200, which are respectively used for being fixed on two relatively movable parts, such as a toilet body and a toilet cover, so as to lock or unlock through the locking structure and avoid the unauthorized operation of children.

As shown in fig. 5, the locking structure includes a first locking member 11 and a second locking member 21 respectively disposed on the first body 100 and the second body 200, and the first locking member 11 and the second locking member 21 are engaged with each other to lock or unlock the first body 100 and the second body 200. When the two are mated, a locking relationship is established for the toilet lid or the like, and the locked body resumes free movement when the two are separated.

As shown in fig. 6, the second locking member 21 includes a locking notch 211, the locking notch 211 has two locking walls 212 disposed opposite to each other, the two locking walls 212 are respectively provided with a locking hole 213, and the locking hole 213 is formed as a fourth locking member. The inner diameter of the locking hole 213 is larger than the outer diameter of the third locking member 31 so that it can pivotally move after being locked, and the pivoting angle can be set as required.

As shown in fig. 7, the first locking member 11 is provided with a locking portion 111 capable of extending into the locking notch 211; the lock portion 111 is provided with two lock surfaces 110 corresponding to the lock wall 212.

In the present embodiment, the locking wall 212 has two opposite surfaces, and the locking surface 110 is two parallel opposite surfaces of the locking portion 111; also, the distance between the two locking walls 212 is greater than or equal to the distance between the two locking surfaces 110, so that the lock portion 111 can be fitted into the locking notch 211.

The third locking member 31 is telescopically disposed on the first body 100, and more specifically, telescopically and movably disposed on the locking surface 110, and extends into the locking hole 213 to engage with or retract to be separated from the locking hole 213, so as to lock or unlock the first locking member 11 and the second locking member 21.

As shown in fig. 8, the lock portion 111 includes a lock portion body 111a and end caps 111b fitted to both sides of the lock portion body 111a, and a cavity 111c is formed between the end caps 111b and the lock portion body 111 a. The outer end of the end cap 111b is formed as a locking surface 110, and the locking surface 110 is provided with a through hole for the third locking member 31 to pass through. The third locking member 31 is provided with two third locking members 31, which are oppositely arranged on the first locking member 11, and a spring is provided between the third locking member 31 and the end cover 111b so that the third locking member 31 can be kept in a retraction state without external force.

In this embodiment, the third locking member 31 has magnetism, and may be made of a magnet or have a magnet built therein, and the outside of the third locking member 31 is the N-pole or S-pole of the magnet.

As shown in fig. 10, the second locking member 21 is provided with an unlocking member 22 movably disposed in parallel with the locking wall 212 in a displaceable manner. The unlocking member 22 extends to the locking hole 213, and has magnetism and a magnetic pole opposite to the third locking member 31.

When the locking portion 111 is engaged with the locking notch 211, the third locking member 31 is magnetically attracted and extends by the unlocking member 22 to extend into the locking hole 213 to lock the first body 100 and the second body 200, and after the unlocking member 22 is displaced upward, the magnetic force between the two is weakened, and the spring drives the third locking member 31 to retract to be disengaged from the locking hole 213, so that the first body 100 and the second body 200 are unlocked.

The working process of the locking structure of the embodiment is as follows:

in the initial state, the two third locking members 31 are kept in the retracted state by the spring, and the first locking member 11 and the second locking member 21 approach each other when the second body 200 is pivoted to close with the toilet lid. The unlocking member 22 magnetically attracts the third locking member 31 to extend and fit the third locking member 31 into the locking hole 213, forming a locking relationship.

When unlocking is required, the unlocking member 22 is forced to be positioned away from the position of the third locking member 31, the magnetic force between the unlocking member and the third locking member is weakened, and the third locking member 31 retracts under the action of the spring to be disengaged from the locking hole 213, so that the first main body 100 and the second main body 200 are unlocked, and the locked main bodies such as the toilet lid and the like are restored to a free state.

The unlocking piece 22 of the locking structure of the embodiment is arranged towards the toilet lid, so that when the locking structure is applied to the toilet lid, a user applies force to the unlocking piece 22 from bottom to top to unlock the locking relation firstly, and then applies force to the unlocked toilet lid to open the toilet lid, and the operation is continuous and convenient.

EXAMPLE III

A lock structure has the same main structure as that of the embodiment except that a first lock member 11 and a second lock member 21 have different structures.

As shown in fig. 16, in the present embodiment, the lock portion 111 also includes a lock portion main body 111a and end covers 111b fitted to both sides of the lock portion main body 111a, and a cavity 111c is formed between the end covers 111b and the lock portion main body 111 a. A spring (not shown) is arranged between the two third locking pieces 31 and the first locking piece 11 to keep the third locking pieces 31 extending; it is also possible to arrange a spring between the third locking members 31.

As shown in fig. 14, the unlocking member 22 is telescopically and displaceably disposed perpendicular to the locking wall 212, and the unlocking member 22 extends to the locking hole 213, and is moved inward to act on the third locking member 31 to retract, thereby separating from the locking hole 213. The second body 200 is provided with an outer hole 214 corresponding to the locking hole 213 so that an outer end of the unlocking member 22 engaged with the locking hole 213 is exposed.

In this embodiment, a spring is disposed between the unlocking member 22 and the second body 200 to keep the unlocking member 22 protruded outward to be located away from the third locking member 31, that is, the unlocking is performed only by the user. That is, the present embodiment is caused to interact by physical interference between the unlocking member 22 and the third locking member 31.

Of course, it is also feasible to use magnets to make the unlocking member 22 and the third locking member 31 or to build in magnets, and the magnets of the unlocking member and the third locking member are opposite and the same in magnetism to generate the repulsive force.

Example four

A lock structure, the structure of the first lock body 100 is the same as the embodiment, the third locking piece 31 is kept extending initially, the structure of the second lock body 200 is similar to the embodiment, the difference is that the unlocking piece 22 has no magnetism, but drives the third locking piece 31 to move by direct contact.

As shown in fig. 17, in the present embodiment, the unlocking member 22 is disposed to be displaced up and down in parallel to the locking wall 212 to drive the retraction of the third locking member 31 at the time of unlocking.

As shown in fig. 18, the unlocking member includes a groove 221 and a guide 222 provided on a lower side of the groove 221.

The groove 221 is disposed corresponding to the locking hole 213, so that the third locking element 31 can be engaged with the groove 221 through the locking hole 213, forming a locking engagement relationship. The unlocking member 22 is pushed upward so that the guide portion 222 acts on the third locking member 31 to retract the third locking member 31 inward, the locking relationship between the third locking member 31 and the second locking member 21 is released, and the first lock body 100 and the second lock body 200 are unlocked.

Claims (10)

1. A locking structure of a protection lock comprises a first locking piece (11) and a second locking piece (21) which are respectively arranged on a first main body (100) and a second main body (200), wherein the first locking piece (11) and the second locking piece (21) are mutually matched to lock or unlock the first main body (100) and the second main body (200); it is characterized in that the preparation method is characterized in that,

the second locking piece (21) comprises a locking notch (211), and the first locking piece (11) comprises a locking part (111) capable of extending into the locking notch (211); the locking notch (211) at least comprises a locking wall (212), and a locking surface (110) is correspondingly arranged on the locking part (111); the first main body (100) and the second main body (200) are provided with a third locking piece (31) and a fourth locking piece which are matched with each other, and the third locking piece (31) is telescopically and movably arranged along the connecting line direction of the locking wall (212) and the locking surface (110) so as to be matched with or separated from the third locking piece to lock or unlock the first main body (100) and the second main body (200);

the third locking piece (31) and the first body (100) or the second body (200) form a fit clearance therebetween, or the third locking piece (31) or the fourth locking piece has a circular cross section so that the third locking piece (31) and the fourth locking piece form a pivotable lock fit relationship.

2. The locking structure of a protective lock according to claim 1, wherein the third locking member (31) is telescopically arranged on the second body (200), the locking wall (212) is provided with a locking hole (213), the third locking member (31) is telescopically and movably arranged in the locking hole (213), and extends into the locking opening (211) to be matched with the locking part (111) or retracts to be separated from the locking part (111);

the locking part (111) is provided with two opposite locking surfaces (110), at least one locking surface (110) is provided with a locking groove (112) formed into a fourth locking piece, the locking groove (112) penetrates through the locking part (111) or is not penetrated through the locking groove, and the third locking piece (31) extends into the locking groove (112) to lock the first body and the second body.

3. The locking structure of a protective lock according to claim 2, characterized in that the first body (100) is provided with a lock seat (101) on the outside and a notch (102) on the inside; the first locking part (11) is arranged on the inner side of the first main body (100), and the notch (102) is positioned on at least one side of the first locking part (11); the first locking piece (11) is arranged perpendicular to the bottom surface of the first main body (100), and the top of the locking part (111) is provided with a guide surface (113).

4. The locking structure of a protection lock according to claim 2, wherein the second body (200) further comprises an unlocking member (22) for driving the third locking member (31) to move telescopically in the locking opening (211), the unlocking member (22) comprises a latch member (221), an actuating member (222) and a return spring, the third locking member (31) is disposed on or connected to the latch member (221), and the return spring acts on the latch member (221) to keep the third locking member (31) in an extending trend.

5. The locking structure of a protective lock according to claim 4, wherein there are two unlocking members (22), and each locking tongue member (221) is provided with a hole (223) for the actuating member (222) of the other unlocking member (22) to engage, and a return spring is disposed between the two locking tongue members (221) or between each locking tongue member (221) and the second body (200).

6. The locking structure of a protective lock according to claim 1, characterized in that said third locking element (31) is provided on the first body (100) telescopically arranged with respect to the locking surface (110); the locking wall (212) is provided with a locking hole (213) formed as a fourth locking piece, and the third locking piece (31) extends into the locking hole (213) to be matched with the locking hole to be locked or retracts from the locking hole (213) to be unlocked.

7. A locking arrangement of a protective lock according to claim 6, characterized in that said third locking element (31) is provided in two, oppositely directed positions on the first locking element (11), a spring being provided between the third locking element (31) and the first locking element (11) to keep the third locking element (31) extended;

an unlocking piece (22) is movably arranged on the second main body (200), and the unlocking piece (22) extends to the lock hole (213) to act on the third locking piece (31) to enable the third locking piece to be disengaged from the lock hole (213).

8. The locking structure of a protective lock according to claim 7, characterized in that the unlocking member (22) and the third locking member (31) act on the third locking member (31) by interference or magnetic repulsion to retract it to be disengaged from the locking hole (213).

9. A locking arrangement of a protective lock according to claim 6, characterized in that said third locking element (31) is provided in two, oppositely directed positions on the first locking element (11), a spring being provided between the third locking element (31) and the first locking element (11) to keep the third locking element (31) retracted;

an unlocking piece (22) is movably arranged on the second main body (200), and the unlocking piece (22) extends to the lock hole (213); the third locking piece (31) and the unlocking piece (22) respectively have magnetism and are arranged with opposite magnetic poles; after the lock part (111) is matched with the lock opening (211), the third locking piece (31) is magnetically attracted and extends out by the unlocking piece (22) to extend into the lock hole (213) to lock the first main body (100) and the second main body (200); the magnetic force is weakened after the unlocking piece (22) is displaced, and the spring drives the third locking piece (31) to retract so as to be disengaged from the locking hole (213).

10. A locking arrangement of a protective lock according to any one of claims 7-9, characterized in that the unlocking element (22) is arranged parallel or perpendicular to the locking wall (212).

Images