CN217681109U - Protective lock - Google Patents

Abstract

The utility model discloses a protection lock, including base, lock body and connecting piece, the connecting piece both ends are equipped with the second link that is used for the first link that is connected with the base and is used for being connected with the lock body respectively, between first link and the base to and between second link and the lock body, be connected through multidirectional rotary mechanism respectively, so that the washing machine door is in the part and opens and lock state. The utility model discloses a protection lock can be used for the protection locking of kind house product, can regard as the washing machine lock of locking to the washing machine door for example, or the multipurpose protection lock of other house products of suitability.

Description

Protective lock

Technical Field

The utility model belongs to the technical field of daily necessities, a protection lock for being used for locking washing machine door etc. so that the enable is opened and the locking is with ventilation and safety is related to.

Background

The washing machine is an electric appliance commonly used in daily life, most of the existing washing machines are drum washing machines, the drum of the washing machines is horizontally arranged, and a door is arranged on a front panel and is opened or closed through rotation.

The door of the existing washing machine is mostly locked by a specific locking mechanism, and the mechanism can be electrified and kept in a locking state when the washing machine works so as to prevent the door from being opened when the washing machine works. However, under the condition that the washing machine does not work, the door lock is not electrified and can be pulled open by applying certain external force; in addition, moisture may remain in the door and drum after the washing machine is used, and ventilation and drying are required.

Therefore, the child may open the washing machine or touch the washing machine with the door open when the ventilation is opened or the power is off. Children may dig into the drum of the washing machine due to their curiosity, which may result in safety hazards.

For this reason, some washing machines have designed more complex door lock structures to keep them locked even in the event of a power failure. This avoids the above safety problem to some extent, but is not practical for a washing machine that does not have a drying function.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can open the washing machine door and just can lock the protection lock of washing machine door with being used for the ventilation.

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

a protective lock comprises a base, a lock body and a connecting piece, wherein the connecting piece is arranged between the base and the lock body to connect the base and the lock body; wherein the lock body is adapted to cooperate with a locking member of a washing machine to form a locking relationship, and the base is adapted to be secured to a washing machine body or a washing machine door opposite the locking member of the washing machine.

And a first connecting end and a second connecting end are respectively arranged at two ends of the connecting piece, the first connecting end is connected with the base, and the second connecting end is connected with the lock body.

The first connecting end and the base, and the second connecting end and the lock body are respectively connected through the multi-directional rotating mechanism; the multi-direction rotating mechanism can rotate at least in two directions so as to adjust the relative position relationship among the connecting piece, the base and the lock body, and enable the washing machine door to be in a partially opened and locked state.

Preferably, the multidirectional rotating mechanism is a universal rotating mechanism and comprises a ball head and a spherical cavity.

Preferably, the multidirectional rotating mechanism is a bidirectional rotating mechanism, and includes a base body rotatably disposed relative to the base connecting end, and a first connecting end hingedly disposed on the base body, and a rotation axis of the first connecting end relative to the base body is different from a rotation axis of the base body relative to the base connecting end.

Preferably, one end of the connecting piece is matched through the universal rotating mechanism, the other end of the connecting piece is matched through the bidirectional rotating mechanism, and two rotating shafts of the bidirectional rotating mechanism are perpendicular to each other.

Preferably, the lock body comprises a lock body main body, a lock body base and a ball cavity member, the lock body base and the lock body main body are mutually connected and fixed, and the ball cavity member is arranged between the lock body main body and the lock body base; be equipped with hemispherical first ball chamber on the ball chamber spare, be equipped with second ball chamber and through-hole in the lock body main part, and the through-hole diameter is less than the diameter of ball chamber spare.

Preferably, the lock body further comprises a first lock piece, a lock hole opening is formed in the lock body, and a lock hole communicated with the lock hole opening is formed in the ball cavity piece; the first lock piece is provided with a lock tongue and an operation end, and the first lock piece is movably arranged in the lock body in a displacement mode so that the lock tongue is matched with the lock piece of the washing machine extending into the lock hole to lock or unlock the lock piece.

Preferably, a return spring is provided between the first lock member and the lock body to maintain the lock body in a locked orientation and to be openable only under external forces. Preferably, the outer side of the lock tongue is provided with a first guide surface, and the first guide surface can be an inclined surface or a curved surface.

Preferably, the connecting piece is of a rod-shaped structure and is made of rigid materials, so that after the protective lock is matched on the door of the washing machine as the washing machine lock, the door of the washing machine is supported and fixed by the protective lock to form a partially opened open state, and ventilation and drying of the inner cylinder of the washing machine are facilitated; meanwhile, the washing machine lock can also lock the opening program of the washing machine door, thereby avoiding the potential safety hazard caused by the child opening the washing machine door by strong operation and improving the safety.

Preferably, the connecting member is a telescopic rod, which is composed of a first connecting rod and a second connecting rod which are inserted and matched with each other, the first connecting rod is hollow to form a cavity for the second connecting rod to be inserted and matched with the first connecting rod, the telescopic rod further comprises a telescopic locking mechanism, such as a plurality of through holes which are respectively arranged on the first connecting rod and a locking button which is movably arranged on the second connecting rod through a spring, when the second connecting rod is in different insertion degrees in the first connecting rod, the locking button is matched with the corresponding through hole to form different integral lengths, so that the opening degree of the washing machine door can be adjusted according to the user requirements under the condition that the washing machine door can be locked by the washing machine lock.

A protective lock comprises a base, a lock body and a connecting piece, wherein the lock body can be used for being matched with a locking piece of a washing machine to form a locking relation, and the base is used for being fixed on a washing machine main body or a washing machine door opposite to the locking piece of the washing machine; the connecting piece is arranged between the base and the lock body to connect the base and the lock body.

The connecting piece is made of flexible materials, and two ends of the connecting piece are fixedly connected to the base and the lock body respectively. Thus, although the door of the washing machine is not rigidly supported by rigid materials, the complexity of the structure can be reduced by the flexible structure; because the washing machine door also has certain resistance, the washing machine door can be kept at a corresponding position under the action of no external force after being opened to a proper angle; moreover, the opening of the bag can be prevented by children, and the safety can be improved.

The lock body comprises a lock body main body, a lock body base and a first locking piece, wherein the lock body base and the lock body main body are mutually connected and fixed; the lock body base is also provided with a lock hole opening, and a lock hole communicated with the lock hole opening is arranged in the lock body; the first lock piece is provided with a lock tongue and an operation end, and the first lock piece is movably arranged in the lock body in a displacement mode so that the lock tongue is matched with the lock piece of the washing machine extending into the lock hole to lock or unlock the lock piece.

Preferably, the connecting piece is a flexible connecting rope, a connecting belt or a connecting chain.

Preferably, a return spring is arranged between the first lock piece and the lock body, so that the lock body keeps the locking trend and can be opened only under the action of external force; the outside of spring bolt is equipped with first spigot surface, and first spigot surface can be inclined plane or curved surface.

Preferably, the protective lock further comprises a lock seat, wherein the lock seat comprises a lock seat bottom plate, a lock cylinder arranged on the lock seat bottom plate, and a lock top block positioned at the top end of the lock cylinder; the lock top block extends into the lock hole and is matched with the first locking piece to be locked or unlocked.

Preferably, the first locking piece is composed of two locking pieces which are matched with each other, the locking piece comprises a locking piece main body, a concave position is formed on one side of the locking piece main body, and the two locking pieces are in a concave-convex matching relation; the locking piece main part is provided with a locking through hole, the lock tongue is arranged towards the locking through hole in an extending mode, and the locking through holes in the two locking pieces are matched to form a locking hole.

Preferably, the upper part of the lock top block is also provided with a second guide surface, and the lock base bottom plate is fixed by gluing or screws.

The protective lock of the utility model can be used for the protective locking of household products, and when the protective lock is separated from the lock seat for use, the protective lock can be used as a washing machine lock to lock the door body of the washing machine, and is a special protective lock; when used in conjunction with a lock bracket, may be adapted for the secure locking of other household products, such as doors or windows.

When the door is used as a washing machine lock, the door can lock a washing machine, a drying machine or a washing and drying integrated washing machine, so that a door body (namely a washing machine door) can be kept at a certain opening degree to facilitate ventilation and drying; and the door body can be locked and cannot be further opened, so that the potential safety hazards of hand clamping injury and the like caused by the fact that a child opens the door of the washing machine and gets stuck in the washing machine or opens and closes the washing machine body after the child opens the door of the washing machine and gets into the washing machine are avoided.

The protective lock can avoid the potential safety hazard of unauthorized operation of children under the condition of keeping ventilation and drying as a washing machine lock, is convenient to use, and can be automatically locked through the first guide surface; when the child safety lock is unlocked, the child safety lock can be unlocked only by pushing the operation end, the possibility that a child opens the child without permission can be avoided to a great extent, and the child safety lock has a positive effect on the child home safety. When the lock is used as a protective lock of other household products, the protection state of partial opening and locking can be realized; for example, a door opening slit can be realized for the protection locking during ventilation.

Drawings

Fig. 1 is a schematic perspective view of a washing machine lock according to a first embodiment of the present invention;

FIG. 2 is an exploded view of the washer lock of the embodiment of FIG. 1;

FIG. 3 is a second exploded view of the washing machine lock of FIG. 2, which is different from FIG. 2 in view;

FIG. 4 is an exploded view of the base of the washer lock of the embodiment of FIG. 1;

FIG. 5 is a schematic view of the structure of the connecting member of the washing machine lock of the embodiment of FIG. 1;

FIG. 6 is an exploded view of the lock body of the washing machine lock of the embodiment of FIG. 1;

FIG. 7 is a schematic cross-sectional view of the washing machine lock of the embodiment of FIG. 1;

FIG. 8 is a schematic view of a first locking member of the lock body of the washing machine lock of the embodiment of FIG. 1;

fig. 9 is a schematic perspective view of a multipurpose protective lock according to a sixth embodiment of the present invention;

FIG. 10 is a schematic structural view of the lock housing of the embodiment of FIG. 9;

figure 11 is an exploded view of the lock body of the embodiment of figure 9;

FIG. 12 is a schematic view of the construction of the first lock of FIG. 11;

figure 13 is a schematic view of the structure of the locking member of the first locking element of figure 12.

Wherein each reference number corresponds to the following:

the lock comprises a base 10, a lock body 20, a connecting piece 30, a lock seat 40, a first connecting seat 11, a seat lug 12, a shaft fixing hole 13, a base main body 110, a base connecting end 120, a lock body main body 21, a lock body base 22, a first lock piece 50, a ball cavity piece 24, a movable cavity 25, a lock hole opening 26, a lock hole 27, a ball cavity 201, a through hole 211, a lock tongue 502, an operating end 505, a first guide surface 504, a first ball cavity 241, a second ball cavity 242, a first connecting end 31, a second connecting end 32 and a hinge shaft hole 311.

Detailed Description

In order to better understand the invention for those skilled in the art and to define the claimed scope 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 description of the related structures is 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 within the scope of the present disclosure.

A protective lock can be used for the protective locking of household products, can be used as a washing machine lock to lock a door body of a washing machine when being separated from a lock seat, and is a special protective lock; when used in combination with a lock base, can be adapted to secure locking of other household products, such as doors or windows.

Hereinafter, a washing machine lock and a general-purpose protection lock (multipurpose protection lock) will be described separately.

Example one

As shown in fig. 1, a washing machine lock, which can be equally applied to a dryer, is provided.

The washing machine lock mainly comprises three parts, namely a base 10, a lock body 20 and a connecting piece 30, wherein the connecting piece 30 is arranged between the base 10 and the lock body 20 to connect the base 10 and the lock body 20.

Referring to fig. 2 and 3, the connecting member 30 is a rod-shaped structure, and two ends thereof are respectively provided with a first connecting end 31 and a second connecting end 32. The first connecting end 31 is a hinge shaft portion having a hinge shaft hole 311, so that the first connecting end 31 is hingedly coupled to the base 10 by a hinge shaft (not shown) passing through the hinge shaft hole 311.

Referring to fig. 4, the base 10 is provided with a first connecting seat 11 for the first connecting end 31 to be disposed, the first connecting seat 11 includes two seat ears 12, and each seat ear 12 is respectively provided with a shaft fixing hole 13 for fixing a hinge shaft therein. After the first connecting end 31 is fitted in the first connecting seat 11, the first connecting seat 11 is rotatably hinged in the first connecting seat 11 by a hinge shaft (not shown).

In this embodiment, in addition to the rotation of the link 30 about the hinge axis, the first connecting seat 11 is rotatably disposed between the link 30 and the base 10 to provide more freedom in direction for use.

Referring to fig. 4, the base 10 includes a base body 110 and a base connecting end 120, the base connecting end 120 is rotatably disposed on the base body 110, and the first connecting seat 11 is disposed on the base connecting end 120. In this embodiment, the rotation axis of the base connection end 120 rotating with respect to the base body 110 and the rotation axis of the connection member 30 rotating with respect to the first connection seat 11 are perpendicular to each other, so that the rotation adjustment at any position in the three-dimensional space can be provided.

Referring to fig. 3, the second connecting end 32 disposed at the other end of the connecting member 30 is a ball 321, and correspondingly, the lock body 20 is correspondingly provided with a spherical cavity 201 for the ball 321 to fit into. After the ball 321 as the second connecting end 32 is fitted in the spherical cavity 201, it forms a connection relationship to connect the connecting member 30 and the lock body 20 together without falling off, and on the other hand, it can allow relative rotation between the two while ensuring connection, so as to realize rotation adjustment of the two in three-dimensional space.

The rotating structure of fig. 4.

Referring to fig. 6 and 7, the lock body 20 includes a lock body main body 21 and a ball cavity 24, a first ball cavity 241 with a hemispherical shape or the like is disposed on the ball cavity 24, a second ball cavity 242 and a through hole 211 are disposed in the lock body main body 21, and the diameter of the through hole 211 is smaller than that of the ball cavity 24, so that the connecting member 30 is rotatably connected with the lock body 20 after the ball head 321 is fitted in the ball cavity 201.

In this embodiment, the lock body 20 further includes a lock body base 22 and a first lock member 50, and the lock body base 22 and the lock body 21 are connected and fixed to each other, such as screw fixation or snap fixation. The lock body 21 and the lock base 22 form a cavity therein after being engaged, and the ball cavity member 24 and the first locking member 50 are disposed in the cavity.

As shown in fig. 6 and 7, the lock body 20 is further provided with a lock opening 26, and the ball cavity member 24 is provided with a lock hole 27 communicating with the lock opening 26.

Referring to fig. 8, the first locking element 50 is provided with a locking tongue 502 and an operating end 505, and the first locking element 50 is movably disposed in the lock body 20 such that the locking tongue 502 is engaged with the locking hole 27 or removed from the locking hole 27, so as to lock or unlock the locking element of the washing machine located in the locking hole 27. The operating end 505 is connected to the first lock member 50 for driving the whole displacement thereof, and at least a portion thereof is exposed out of the lock body 20 for facilitating the operation thereof.

Referring to fig. 7, a movable cavity 25 is formed between the ball cavity member 24 and the lock body base 22 for the first lock member 50 to be movably disposed to realize locking or unlocking.

In this embodiment, a return spring (not shown) is provided between the first locking member 50 and the lock body 20 to maintain the lock body 20 in a locked state and to be opened only by an external force. Preferably, a first guide surface 504 is provided at an outer side of the latch 502, and the first guide surface 504 may be an inclined surface or a curved surface, so that the first locking element 50 is automatically unlocked without manual operation due to its guiding function when the locking element of the washing machine is engaged with the locking hole 27; at the same time, after it is fitted into the lock hole 27, the first lock member 50 can be automatically reset and locked by the return spring.

As shown in fig. 8, the inner side of the latch tongue 502 is a plane for the purpose of locking.

Example two

The main structure of a washing machine lock is the same as that of the first embodiment, except that the first connecting end 31 and the second connecting end 32 at two ends of the connecting piece 30 are both ball heads, so as to realize the purpose of respectively rotating and connecting the two ends.

EXAMPLE III

A washing machine lock is mainly structurally the same as the washing machine lock in the embodiment, and is different in that a first connecting end 31 and a second connecting end 32 of two ends of a connecting piece 30 are exchanged, and correspondingly, a first connecting seat 11 and a spherical cavity 201 are also exchanged, so that the two ends of the connecting piece 30 can be rotatably connected.

Example four

A washing machine lock, the main structure of which is the same as that of any one of the first to third embodiments, except that the connecting member 30 is a telescopic structure.

EXAMPLE five

A washing machine lock of the same main structure as any one of the first to third embodiments, except that the connecting member 30 is a flexible member such as a flexible connecting string, a connecting band or a connecting chain.

EXAMPLE six

A multipurpose protection lock is mainly structurally the same as the washing machine lock of the first embodiment, except that the multipurpose protection lock further comprises a lock seat 40, and a first lock piece 51 correspondingly matched with the lock seat 40 is arranged in a lock body 20. So that the multipurpose guard lock can be attached to another surface by gluing, screwing, etc. the bottom surface of the lock housing 40 and brought into a locking or unlocking relationship.

Therefore, compared to the embodiment of a washing machine lock dedicated to locking the washing machine door, the present embodiment can expand the matching scenario of the multipurpose protection lock by additionally providing a lock seat 40.

As shown in fig. 9, the multipurpose protective lock comprises a base 10, a connecting member 30, a lock body 20 and a lock seat 40, wherein the base 10 and the connecting member 30 have the same structure and the same connection relationship as the first embodiment, and the connecting member 30 and the lock body 20 have the same connection relationship.

As shown in fig. 11, the lock body 20 is provided with a first locking member 50 for cooperating with the lock holder 40.

As shown in fig. 10, the lock seat 40 includes a lock seat bottom plate 41, a lock cylinder 42 disposed on the lock seat bottom plate 41, and a lock top block 43 located at the top end of the lock cylinder 42; the lock top block 43 at least partially protrudes from the lock cylinder 42 for locking. Preferably, the lock cylinder 42 and the lock top block 43 have circular cross sections, and the diameter of the lock top block 43 is larger than that of the lock cylinder 42.

In this embodiment, the upper portion of the lock top block 43 is further provided with a second guiding surface 44, and the second guiding surface 44 is a conical surface, which may also be an inclined surface or a curved surface, so as to guide when the lock base 40 cooperates with the first locking element 50 for locking, thereby achieving automatic locking.

As shown in fig. 12, the first locking element 50 consists of two locking elements 51 that cooperate with one another. The locking member 51 includes a locking member main body 511, a concave portion 512 is formed on one side of the locking member main body 511, and the locking member main bodies 511 of the two locking members 51 are disposed opposite to the concave portion 512, so that the two locking members 51 form a concave-convex matching structure.

The locking member 51 has an operating end 513 that is exposed to the lock body 20 so that a user can operate the locking member 51. Between the locking members 51, or between each locking member 51 and the lock body 20, a spring is provided to maintain the locking members 51 in a mating locking tendency.

As shown in fig. 12, a locking hole 501 is formed after the two locking pieces 51 are engaged, and locking tongues 502 are provided on both sides of the locking hole 501. After the lock base 40 is fitted into the first lock member 50, the lock cylinder 42 passes through the lock hole 501, and the lock top block 43 is retained by the two lock tongues 502 to be locked. The operating ends 513 of the two locking pieces 51 are forced to displace the two lock tongues 502 towards both sides, respectively, so as to unlock the lock top block 43, and the lock holder 40 can be separated from the third locking piece 50.

As shown in fig. 13, the locking piece main body 511 is provided with a locking through hole 503, the latch 502 is provided to extend toward the locking through hole 503, and the locking through holes 503 of the two locking pieces 51 are engaged to form a locking hole 501.

Claims (12)

1. A protective lock comprises a base (10), a lock body (20) and a connecting piece (30), wherein the connecting piece (30) is arranged between the base (10) and the lock body (20) to connect the base (10) and the lock body (20); it is characterized in that the preparation method is characterized in that,

a first connecting end (31) and a second connecting end (32) are respectively arranged at two ends of the connecting piece (30), the first connecting end (31) is connected with the base (10), and the second connecting end (32) is connected with the lock body (20);

the first connecting end (31) is connected with the base (10), and the second connecting end (32) is connected with the lock body (20) through the multi-directional rotating mechanism; the multi-direction rotating mechanism can rotate at least in two directions so as to adjust the relative position relationship between the connecting piece (30) and the base (10) and the lock body (20) and enable the protected component to be in a partially opened and locked state.

2. The protective lock of claim 1, wherein the multi-directional rotation mechanism is a universal rotation mechanism comprising a ball head (321) and a spherical cavity (201); or the like, or, alternatively,

the multidirectional rotating mechanism is a bidirectional rotating mechanism and comprises a base main body (110) which can be rotatably arranged relative to the base connecting end (120) and a first connecting end (31) which is hinged to the base main body (110), and the rotating shaft of the first connecting end (31) relative to the base main body (110) is different from the rotating shaft of the base main body (110) relative to the base connecting end (120).

3. Protective lock according to claim 2, characterized in that the connecting piece (30) is fitted at one end by means of a universal swivel mechanism and at the other end by means of a bidirectional swivel mechanism, and that the two swivel axes of the bidirectional swivel mechanism are perpendicular to each other.

4. A protective lock according to claim 2 or 3, wherein said lock body (20) comprises a lock body main body (21), a lock body base (22) and a ball cavity member (24), the lock body base (22) and the lock body main body (21) are fixedly connected with each other, the ball cavity member (24) is arranged between the lock body main body (21) and the lock body base (22); be equipped with hemispherical first ball chamber (241) on ball chamber spare (24), be equipped with second ball chamber (242) and through-hole (211) in lock body main part (21), and the diameter of through-hole (211) is less than the diameter of ball chamber spare (24).

5. The protective lock according to claim 4, wherein the lock body (20) further comprises a first lock member (50), the lock body (20) further comprises a lock opening (26), and the ball cavity member (24) further comprises a lock hole (27) communicated with the lock opening (26); the first locking piece (50) is provided with a bolt (502) and an operating end (505), and the first locking piece (50) is movably arranged in the lock body (20) in a displacement way, so that the bolt (502) is matched with the locking piece of the washing machine extending into the lock hole (27) to lock or unlock the washing machine.

6. A protective lock according to claim 5, characterized in that a return spring is provided between the first locking element (50) and the lock body (20) in order to maintain the lock body (20) in a locked tendency and to be able to open only under the influence of external forces; the outside of spring bolt (502) is equipped with first guide surface (504), and first guide surface (504) can be inclined plane or curved surface.

7. A protective lock according to claim 2 or 3, wherein the connecting member (30) is of rod-like construction and is made of a rigid material.

8. The protective lock according to claim 7, wherein the connecting member (30) comprises a first connecting member and a second connecting member, the first connecting member is hollow, the second connecting member is sleeved in the first connecting member, the first connecting member is provided with a plurality of telescopic locking holes, the second connecting member is provided with a telescopic block, the telescopic block is telescopically arranged, and the telescopic block is matched with different telescopic locking holes so that the length of the connecting member (30) can be adjusted.

9. A protective lock comprises a base (10), a lock body (20) and a connecting piece (30), wherein the connecting piece (30) is arranged between the base (10) and the lock body (20) to connect the base and the lock body; it is characterized in that the preparation method is characterized in that,

the connecting piece (30) is made of flexible materials, and two ends of the connecting piece are respectively and fixedly connected to the base (10) and the lock body (20);

the lock body (20) comprises a lock body main body (21), a lock body base (22) and a first lock piece (50), wherein the lock body base (22) and the lock body main body (21) are connected and fixed with each other; a lock hole opening (26) is also formed in the lock body base (22), and a lock hole (27) communicated with the lock hole opening (26) is formed in the lock body (20); the first locking piece (50) is provided with a bolt (502) and an operating end (505), and the first locking piece (50) is movably arranged in the lock body (20) in a displacement way, so that the bolt (502) is matched with the locking piece of the washing machine extending into the lock hole (27) to lock or unlock the washing machine.

10. Protective lock according to claim 9, characterized in that the connecting piece (30) is a flexible connecting rope, connecting strap or connecting chain;

a return spring is arranged between the first locking piece (50) and the lock body (20) so that the lock body (20) keeps the locking trend and can be opened only under the action of external force; the outside of spring bolt (502) is equipped with first guide surface (504), and first guide surface (504) can be inclined plane or curved surface.

11. A protective lock according to claim 1 or 9, further comprising a lock receptacle (40), the lock receptacle (40) comprising a lock receptacle base plate (41), a lock cylinder (42) arranged on the lock receptacle base plate (41), and a lock top block (43) located at the top end of the lock cylinder (42); the lock top block (43) extends into the lock hole (27) and is matched with the first locking piece (50) to be locked or unlocked.

12. A protective lock according to claim 11, wherein said first locking member (50) is formed by two locking members (51) cooperating with each other, the locking members (51) comprising a locking member main body (511), a recess (512) being formed on one side of the locking member main body (511), the two locking members (51) being in a male-female mating relationship; the locking piece main body (511) is provided with a locking through hole (503), the bolt (502) is arranged in a manner of extending towards the locking through hole (503), and the locking through holes (503) on the two locking pieces (51) are matched to form a locking hole (501);

the upper part of the lock top block (43) is also provided with a second guide surface (44), and the lock base bottom plate (41) is fixed through gluing or screws.

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