CN215803892U - Lock cap, lock cylinder and anti-theft locking device - Google Patents

Abstract

The utility model relates to the technical field of anti-theft locking devices, in particular to a lock cap, a lock cylinder and an anti-theft locking device, wherein the lock cap is used for installing the lock cylinder and comprises the following components: the middle part of the lock cap main body is provided with a first through hole for the end part of the steel needle to pass through; the upper end surface of the locking cap main body is inwards sunken to form at least two grooves for guiding the locking pieces to be distributed on the upper end surface according to a set angle. According to the utility model, the structure of the lock cap main body is changed, the groove is formed on the end face of the lock cap main body to replace a side hole in the existing design, the structure is simplified, the processing is convenient, and the problems of long production period and high production precision required due to the complex structure in the prior art are solved.

Description

Lock cap, lock cylinder and anti-theft locking device

Technical Field

The utility model relates to the technical field of anti-theft locking devices, in particular to a lock cap, a lock cylinder and an anti-theft locking device.

Background

At present, most markets and supermarkets adopt open shopping, and in order to prevent commodities from being stolen, merchants are buckled with anti-theft buckles which are not easy to detach, and most electronic anti-theft locking devices are used. The electronic anti-theft locking device can be unlocked only by the unlocking device of the cashier desk, and once a person wants to take the commodity provided with the electronic anti-theft locking device away from a market, the detection door can send out an alarm signal when passing through the anti-theft detection door at the outlet, so that the commodity is effectively prevented from being stolen. Along with the increasing development of social economy, the electronic anti-theft locking device has wider and wider application range, and saves a large amount of labor cost for merchants.

For example, chinese patent 201110126661.5 discloses a metal core for an electronic anti-theft locking device and a method for manufacturing the same, the metal core manufactured by the scheme has a complex structure and high manufacturing difficulty, requires multiple processes to complete the production of one metal core, and requires a long production time and high production precision.

Disclosure of Invention

The utility model aims to provide a lock cap, a lock cylinder and an anti-theft locking device.

The purpose of the utility model is realized as follows:

a locking nut for installation in a lock cylinder, comprising:

the middle part of the lock cap main body is provided with a first through hole for the end part of the steel needle to pass through;

the upper end surface of the locking cap main body is inwards sunken to form at least two grooves for guiding the locking pieces to be distributed on the upper end surface according to a set angle.

Preferably, the grooves are circumferentially and uniformly distributed on the end face of the lock cap main body;

the grooves are three and are spaced 120 degrees apart from each other.

Preferably, a plurality of guide surfaces are formed on the upper end surface of the lock cap main body, and one end of each guide surface extends to one side wall of the through hole;

the guide surfaces are respectively positioned between two adjacent grooves.

Preferably, the lower end of the locking cap main body is recessed inwards to form a mounting groove, a boss is formed at the bottom of the mounting groove, and the first through hole penetrates through the boss.

Preferably, the locking cap body is cylindrical.

A lock cylinder, comprising:

the base is hollow inside and has an open upper end;

the upper cover is hollow, the upper end of the upper cover is provided with a second through hole, and the lower end of the upper cover is open;

the lower end part of the upper cover is connected with the upper end of the base, and an installation cavity is formed inside the base and the upper cover;

the lock cap is movably arranged in the mounting cavity;

the locking device also comprises at least two locking pieces which are arranged in the mounting cavity and are arranged between the locking cap main body and the inner wall of the upper end of the upper cover;

the end part of the steel needle penetrates through the second through hole and is arranged between the locking pieces;

in the locking state, the locking cap main body pushes the locking piece, and the locking pieces are close to each other under the constraint of the upper cover, so that the locking piece clamps and fixes the steel needle;

under the unblock state, remove the lock nut main part under the exogenic action, the retaining member loses the restraint of upper cover for alternate segregation between the retaining member loosens the steel needle, makes the steel needle can take out.

Preferably, the method further comprises the following steps:

the reset spring is installed in the installation cavity, the end portion of the reset spring abuts against the bottom of the installation groove of the lock cap main body and is used for supporting the lock cap main body, and the lock cylinder is enabled to keep a locking state.

Preferably, the upper end inner wall shaping of base has the joint groove, the lower extreme shaping of upper cover has joint portion, through the cooperation in joint portion and joint groove, realizes the installation of upper cover on the base.

Preferably, a plurality of clamping grooves are formed in the outer wall of the steel needle and used for facilitating clamping of the locking piece.

An anti-theft locking device comprising:

the lock cylinder and the anti-theft alarm component are arranged on the lock cylinder;

the anti-theft alarm component is arranged on the outer side of the lock cylinder and used for alarming.

Compared with the prior art, the utility model has the outstanding and beneficial technical effects that:

1. according to the utility model, the structure of the lock cap is changed, the groove is formed on the end face of the lock cap main body to replace a side hole in the existing design, so that the structure is simplified, the processing is convenient, the production precision is reduced, the production and the processing are easier, and the production efficiency is improved.

2. The uniform distribution of the grooves can mainly ensure the uniform distribution of the subsequent locking parts and the locking effect.

3. The guide surface can play a role in guiding the end part of the steel needle to enter the first through hole, and is convenient to use.

4. The upper cover and the lock cap main body are matched, so that the locking piece can be adjusted, the steel needle can be locked or loosened, and the normal work of the lock core is ensured.

5. The reset spring of the utility model can ensure the locking action of the locking piece on the steel needle without the action of external force, and ensure the safe and effective normal use of the lock core.

6. After the anti-theft alarm assembly is installed, the anti-theft locking device is formed and can be fixed on an object in need to monitor the object, so that the condition of theft is avoided.

Drawings

Fig. 1 is a schematic structural view of the anti-theft locking device of the present invention.

Fig. 2 is an overall sectional view of the present invention after the steel pin is inserted into the lock cylinder.

Fig. 3 is an exploded view of the lock cylinder with the steel needle hidden according to the present invention.

Fig. 4 is a schematic structural diagram of the lock cylinder with the upper cover hidden.

Fig. 5 is a schematic view of the lock cap structure of the present invention.

Fig. 6 is a second schematic view of the lock cap structure of the present invention.

Fig. 7 is a top view of the locking cap of the present invention.

Fig. 8 is a sectional view taken along the direction B-B of fig. 7.

Fig. 9 is a schematic structural view of the steel needle of the present invention.

FIG. 10 is a schematic view showing the wrong distribution of the retaining member in the state of no recess according to the present invention.

Reference numerals:

1. a lock cap body; 2. a first through hole; 3. a groove; 4. a guide surface; 5. mounting grooves; 6. a boss; 7. a base; 8. an upper cover; 9. a mounting cavity; 10. a locking member; 11. a steel needle; 12. a return spring; 13. a clamping groove; 14. a clamping part; 15. clamping the groove; 16. an anti-theft alarm component; 17. a cover plate; 18. and a second through hole.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1, an anti-theft locking device includes a lock cylinder and an anti-theft alarm assembly 16, wherein the anti-theft alarm assembly 16 is installed at the outside of the lock cylinder, and a housing may be designed to fix the above-mentioned device and assembly, and it is well within the ability of those skilled in the art to think of the specific structure of the housing and will not be described in detail; also, the burglar alarm assembly 16 is now conventional in the field of anti-theft locking devices and will not be described.

As shown in fig. 2 and 3, the above-described lock cylinder includes: the device comprises a base 7, an upper cover 8, at least two locking pieces 10, a locking cap, a steel needle 11 and a return spring 12;

a base 7 which is hollow and has an open upper end;

the upper cover 8 is hollow, the upper end of the upper cover is provided with a second through hole 18, and the lower end of the upper cover is open;

the upper cover 8 is arranged on the base 7, a mounting cavity 9 is formed in the base 7 and the upper cover 8, the lock cap is arranged in the mounting cavity 9, the return spring 12 is arranged in the mounting cavity 9, and one end of the return spring 12 is abutted against the lower end of the lock cap;

the locking piece 10 is arranged in the mounting cavity 9 and is arranged between the locking cap and the inner wall of the upper end of the upper cover 8; the inner space of the upper cover 8 is tapered, that is, the closer to the second through hole 18, the smaller the inner space of the upper cover 8, the locking cap abuts against the locking member 10, the locking cap is close to the second through hole 18 under the action of the return spring 12, and the locking members 10 are close to each other under the constraint of the upper cover 8.

When in use, the steel needle 11 is penetrated through the articles to be monitored, such as clothes, food and the like applied in the supermarket and the supermarket; and then the end part of the steel needle 11 penetrates through the second through hole 18 and extends into the mounting cavity 9, and the diameter of the lower end of the upper cover 8 is larger than that of the upper end, so that the steel needle 11 can extrude the locking piece 10 and penetrates through the locking piece 10, and the locking piece 10 locks the steel needle 11 under the action of the return spring 12 and friction force, so that the steel needle 11 cannot be pulled out, namely the locking of the steel needle 11 is completed, the mounting of the anti-theft locking device on an article is realized, the anti-theft can be realized, and the anti-theft condition is prevented.

When theftproof locking device is pulled down to needs, only need utilize external force to make the locking cap remove, external force can utilize strong magnetism to attract the locking cap, compression reset spring 12 makes the locking cap remove towards base 7 to make retaining member 10 lose 8's restraint, make alternate segregation between the retaining member 10, loosen steel needle 11, take out steel needle 11.

The base 7 is not only a part, but also a housing, a concave groove is formed on the housing, the upper cover 8 is fixed in the concave groove, and the design of the mounting cavity 9 can also be realized.

As shown in fig. 2 and 3, the connection structure between the upper cover 8 and the base 7 is as follows:

the upper end inner wall shaping of base 7 has joint groove 13, the lower extreme shaping of upper cover 8 has joint portion 14, through the cooperation of joint portion 14 with joint groove 13, realizes the installation of upper cover 8 on base 7.

The clamping part 14 can be formed by turning the lower end edge of the upper cover 8 outwards; or a clamping protrusion formed on the outer wall of the lower end of the upper cover 8.

The installation is that joint portion 14 joint to the joint inslot 13, can accomplish the connection of upper cover 8 and base 7, and the installation is got up simple convenient and fast.

As shown in fig. 3 and 4, the number of the locking members 10 can be selected according to actual situations, and can be two, three, four, etc., and the optimal scheme is 3, so that the small gap of the locking members 10 can be ensured, and the clamping is more stable.

The locking member 10 in this embodiment is made of steel balls, which are less affected by external factors, and can be better matched with the steel balls in the moving process of the locking cap, so as to ensure the clamping and locking of the steel needle 11.

The other scheme adopts the design of the conical blocks, the conical blocks are driven to move by the locking caps, and the clearance assemblies among the conical blocks are reduced under the constraint of the upper cover 8, so that the steel needle 11 is clamped and locked.

As shown in fig. 5 to 8, the above-mentioned lock cap has the following structure:

the locking cap mainly comprises a locking cap main body 1, a through hole I2 is formed in the middle of the upper end of the locking cap main body 1, the upper end face of the locking cap main body 1 is inwards sunken to form locking pieces 10, the number of the locking pieces corresponds to that of the locking pieces 3, and each locking piece 10 is equally divided into two parts, namely, the locking pieces are respectively located in one groove 3 and move in the groove 3.

This design eliminates the side opening design of the prior art but instead forms a recess 3 directly in the upper face to constrain the position of retaining member 10 within mounting cavity 9.

The grooves 3 are circumferentially and uniformly distributed on the upper end surface of the lock cap main body 1.

The grooves 3 are distributed on the upper end face of the lock cap main body 1 according to a set angle, and the set angle comprises various conditions;

when two grooves 3 are formed, the angle between the grooves is 180 degrees; when the grooves are three, the grooves are mutually spaced by 120 degrees; four grooves are 90 degrees apart, and so on.

The above-mentioned interval angles are not limited to 180 degrees, 120 degrees and 90 degrees, and a small range of variation is allowed.

The groove 3 mainly restrains the position of the locking member 10, and ensures the uniform distribution of the locking member 10 in the installation cavity 9, thereby ensuring the locking of the steel needle 11.

As shown in fig. 10, it is a schematic view of locking member 10 after being mounted incorrectly, and it is impossible to secure stable clamping of the steel needle in this state, which affects the stability of locking.

According to the utility model, the structure of the lock cap main body 1 is changed, the groove 3 is formed on the end face of the lock cap main body 1 to replace a side hole in the existing design, so that the structure is simplified, the processing is convenient, the production precision is reduced, the production and the processing are easier, and the production efficiency is improved.

As shown in fig. 7, a plurality of guide surfaces 4 are formed on the upper end surface of the lock cap body 1, and one end of each guide surface 4 extends to the side wall of the through hole 2.

The steel needle 11 firstly passes through the second through hole 18, then passes through the gap of the locking piece 10, and then passes through the first through hole 2 on the lock cap main body 1, so that the connection of the steel needle 11 on the lock core is completed.

The guide surface 4 is designed to ensure that the steel needle 11 can smoothly and correctly pass through the first through hole 2 and the second through hole.

The guide surfaces 4 are respectively located between two adjacent grooves 3, i.e. the uppermost ends of the guide surfaces 4 are the convex parts located between the grooves 3.

In the present embodiment, the lock cap body 1 is cylindrical, and may be formed into other shapes, for example, a square shape, according to the actual situation.

As shown in fig. 8, the lower end surface of the locking cap body 1 is recessed inwards to form a mounting groove 5, a boss 6 is formed at the bottom of the mounting groove 5, and the through hole one 2 penetrates through the boss 6.

Referring to fig. 2, the end of the return spring 12 is disposed between the boss 6 and the inner wall of the lock cap body 1, and the boss 6 mainly restrains the end of the return spring 12, so as to prevent the end of the steel needle 11 from penetrating through the return spring 12 to affect the movement of the lock cap body 1, thereby ensuring the normal operation of the whole structure.

In order to facilitate the end part of the return spring 12 to be sleeved outside the boss 6, the boss 6 is designed to be a conical boss, namely the lower end of the boss 6 is smaller than the upper end.

The rear end of the steel needle 11 is provided with the cover plate 17, so that the steel needle 11 can be conveniently constrained by the cover plate 17 after penetrating through an object, and can be prevented from being separated.

As shown in fig. 9, in order to further strengthen the locking of the locking member 10 to the steel needle 11, a plurality of clamping grooves 15 may be formed on the outer wall of the steel needle 11, the clamping grooves 15 are regularly arranged along the steel needle 11, the outer wall of the locking member 10 is placed in the clamping grooves 15 during locking, and the clamping grooves 15 are utilized to increase the clamping strength and the friction force, so as to ensure the locking stability.

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

This specification includes any features disclosed in the appended claims, abstract and drawings, which are, unless expressly stated otherwise, replaceable with other equivalent or similarly purposed alternative features. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

In the description of the present invention, it is to be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

Further, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The use of terms such as "upper," "above," "lower," "below," and the like in describing relative spatial positions herein is for the purpose of facilitating description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented 90 degrees or at other orientations and the spatially relative descriptors used herein interpreted accordingly.

In the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "sleeved," "connected," "penetrating," "plugged," and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Therefore, the above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.

Claims (10)

1. A locking cap for installation in a lock cylinder, comprising:

the lock cap comprises a lock cap main body (1), wherein the middle part of the lock cap main body is provided with a first through hole (2) for the end part of a steel needle (11) to pass through;

the upper end surface of the lock cap main body (1) is inwards sunken to form at least two uniformly distributed grooves (3) for guiding the locking piece (10) to be distributed on the upper end surface according to a set angle.

2. The locking cap of claim 1, wherein:

the grooves (3) are circumferentially and uniformly distributed on the end face of the lock cap main body (1);

the grooves (3) are three and are spaced by 120 degrees.

3. The locking cap of claim 1, wherein:

a plurality of guide surfaces (4) are formed on the upper end surface of the lock cap main body (1), and one ends of the guide surfaces (4) extend to the side wall of the through hole I (2);

the guide surfaces (4) are respectively positioned between two adjacent grooves (3).

4. The locking cap of claim 1, wherein:

the lower extreme of lock cap main part (1) is inside sunken to form mounting groove (5), and the bottom shaping of this mounting groove (5) has boss (6), this boss (6) are run through in through-hole one (2).

5. The locking cap of claim 1, wherein:

the lock cap main body (1) is cylindrical.

6. A lock cylinder, comprising:

a base (7) which is hollow and has an open upper end;

the upper cover (8) is hollow, the upper end of the upper cover is provided with a second through hole (18), and the lower end of the upper cover is open;

the lower end part of the upper cover (8) is connected with the upper end of the base (7), and a mounting cavity (9) is formed inside the base (7) and the upper cover (8);

movably mounting a lock cylinder according to any one of claims 1-5 in a mounting chamber (9);

the locking device also comprises at least two locking pieces (10) which are arranged in the mounting cavity (9) and are arranged between the locking cap main body (1) and the inner wall of the upper end of the upper cover (8);

the end part of the steel needle (11) penetrates through the second through hole (18) and is arranged between the locking pieces (10);

under the locking state, the locking cap main body (1) pushes the locking piece (10), and the locking pieces (10) are close to each other under the constraint of the upper cover (8), so that the locking pieces (10) clamp and fix the steel needle (11);

under the unblock state, remove lock cap main part (1) under the exogenic action, retaining member (10) lose the restraint of upper cover (8) for mutual separation between retaining member (10), unclamp steel needle (11), make steel needle (11) can take out.

7. The lock core of claim 6, further comprising:

and the return spring (12) is installed in the installation cavity (9), and the end part of the return spring abuts against the bottom of the installation groove (5) of the lock nut main body (1) and is used for supporting the lock nut main body (1) so as to keep the lock cylinder in a locking state.

8. The lock cylinder according to claim 6, characterized in that:

the upper end inner wall shaping of base (7) has joint groove (13), the lower extreme shaping of upper cover (8) has joint portion (14), through the cooperation of joint portion (14) and joint groove (13), realizes the installation of upper cover (8) on base (7).

9. The lock cylinder according to claim 6, characterized in that:

a plurality of clamping grooves (15) are formed in the outer wall of the steel needle (11) and used for facilitating clamping of the locking piece (10).

10. An anti-theft locking device, comprising:

the lock cylinder and burglar alarm assembly (16) according to any of claims 6-9;

the anti-theft alarm component (16) is arranged on the outer side of the lock cylinder and used for alarming.

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