CN220955070U - Shear-resistant lock body - Google Patents

Abstract

The utility model discloses a shearing-resistant lock body, which comprises an outer tube, wherein an inner tube is fixedly arranged in the outer tube, a pin sleeve and a lock cylinder are arranged in the inner tube, a chain connecting piece is arranged in the pin sleeve, the chain connecting piece extends leftwards out of the outer tube, and a chain is connected to the chain connecting piece; aiming at the lock core, the utility model also provides the anti-warping sheet and the anti-drilling sheet, thereby further increasing the damage difficulty; the outer sleeve is provided with the shell, the holding hand lever is additionally arranged on the shell, and the scratch possibly caused by the sharp position of the metal outer tube is avoided.

Description

Shear-resistant lock body

Technical Field

The utility model relates to the technical field of locks, in particular to a shear-resistant lock body.

Background

The chain lock is a lock composed of chain and lock head, in which one end of the chain is fixed on the lock head, and the other end of the chain is controlled by lock core in the lock head to lock or not.

As shown in a lock head and a chain lock disclosed in application number 202022719870.8, the existing lock head is generally only provided with a single-layer lock shell for protecting a lock core, and the arrangement of the single-layer shell enables the shearing resistance of the lock head to have a great hidden danger, namely the safety of the lock head may not be high.

In addition, in such locks, the strength of the connection of the lock cylinder to the lock head, the strength of the connection of the fixed end of the chain to the lock head, and the anti-breaking ability of the lock cylinder also determine the anti-theft strength of such locks, and in the above-disclosed patent, no additional fixing is made to the above three points, which also reduces the security of the lock, and thus improvement of the above-described drawbacks is required.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides a shearing-resistant lock body, which is used for solving the problem that the existing lock head is generally a single-layer shell and has low shearing-resistant performance.

The utility model provides the following technical scheme: the utility model provides an anti shear lock body, includes the outer tube, set firmly the inner tube in the outer tube, be equipped with in the inner tube and participate in cover and lock core, the lock core internal rotation is connected with and is used for receiving the key and can take place rotatory lock core for the lock core, the left end of lock core is connected with the lock gate, the lock gate has the radian, the extrados of lock gate paste in the intrados of inner tube, just integrated into one piece has the locking plate on the side of lock gate, outer tube with respectively be equipped with a position in the inner tube and correspond and inside and outside through-going locking groove, the left and right breadth of locking groove is greater than the left and right breadth of locking plate;

the pin sleeve is internally provided with a chain connecting piece, the chain connecting piece extends leftwards to the outside of the outer tube, and the chain connecting piece can be connected with a chain.

Preferably, the chain connecting piece is internally provided with a clamping hole which is vertically penetrated, the pin sleeve is internally provided with a clamping groove which is leftwards penetrated to accommodate a part of the chain connecting piece, the outer cambered surface of the inner pipe is internally nailed with a pin, and the pin penetrates through the clamping hole and penetrates through the pin sleeve.

Preferably, two pins II which are distributed up and down penetrate through the outer tube, and the pins II penetrate through the inner tube and are fixed in the pin sleeve;

Two third pins distributed up and down penetrate through the inner tube, and the third pins are fixed in the lock cylinder.

Preferably, two first notches which are distributed up and down are respectively arranged at the left end and the right end of the outer tube, and a first clamping plate which extends into the first notch at the left side is integrally formed on the outer cambered surface of the pin sleeve;

Two number two notches that distribute from top to bottom are arranged in the right-hand member face of inner tube, the inner tube has inserted the anti-fin, be equipped with on the cambered surface of anti-fin and block into number two cardboard in the notch No. two, be equipped with in the anti-fin and link up about so as to avoid shielding the through-hole of buttonholing in the lock core.

Preferably, the lock cylinder is also rotationally connected with an anti-drilling sheet, and the anti-drilling sheet is attached to the anti-tilting sheet.

Preferably, the outer tube is sleeved with a shell, the shell extends leftwards to the left side of the outer tube and is sleeved with a part of the chain connecting piece, and the left end of the shell is retracted.

The utility model provides a shear-resistant lock body, which has the following beneficial effects:

The utility model has simple structure and strong reliability, the inner tube and the outer tube for protecting the lock cylinder and the pin sleeve are arranged in the utility model, double-layer protection is realized, the shearing resistance is high, and the utility model is internally provided with a plurality of pins, thereby increasing the connection strength among the outer tube, the inner tube, the pin sleeve and the lock cylinder;

Aiming at the lock core, the utility model also provides the anti-warping sheet and the anti-drilling sheet, thereby further increasing the damage difficulty;

The outer sleeve is provided with the shell, the holding hand lever is additionally arranged on the shell, and the scratch possibly caused by the sharp position of the metal outer tube is avoided.

Drawings

FIG. 1 is a schematic view of the appearance of the present utility model;

FIG. 2 is a schematic view of the exterior of FIG. 1 with the housing removed;

FIG. 3 is a schematic view of the outer and inner tubes of FIG. 2 with the inner and outer tubes removed;

FIG. 4 is a schematic diagram of the structure of the present utility model;

Fig. 5 is an enlarged schematic view of the anti-lift tab of fig. 3.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to FIGS. 1-5, an embodiment of a shear lock body according to the present utility model includes

The utility model provides an anti shear lock body, includes outer tube 11, set firmly inner tube 12 in the outer tube 11, be equipped with the pin housing 13 and the lock core 14 of controlling the distribution in the inner tube 12, the lock core 14 internal rotation is connected with and is used for receiving the key and can for lock core 14 takes place rotatory lock core 15, the left end of lock core 15 is connected with lock gate 16, lock gate 16 has the radian, lock gate 16's extrados paste in inner tube 12's intrados, just integrated into one piece has locking plate 17 on the side of lock gate 16, outer tube 11 with respectively be equipped with a position correspondence in the inner tube 12 and inside and outside through-going locking groove 18, the left and right breadth of locking groove 18 is greater than the left and right breadth of locking plate 17.

The pin housing 13 is internally provided with a chain connecting piece 19, the chain connecting piece 19 extends leftwards to the outside of the outer tube 11, and a chain (not shown in the figure) can be connected to the chain connecting piece 19, the tail end of the chain can be inserted into the locking groove 18 and locked by the locking plate 17, when unlocking is needed, a user inserts a key and rotates the lock pin 15 and the locking plate 17, so that the locking plate 17 does not pass through the locking groove 18 any more, and the chain can be unlocked at the moment.

In this embodiment, the clamping method of the chain connecting piece 19 is as follows: the chain connecting piece 19 is internally provided with a clamping hole which is vertically penetrated and used for connecting a chain, the pin sleeve 13 is internally provided with a clamping groove 20 which is leftwards penetrated and used for accommodating a part of the chain connecting piece 19, a pin 21 is nailed into the outer cambered surface of the inner tube 12, the pin 21 penetrates through the clamping hole and penetrates through the pin sleeve 13, at the moment, the pin sleeve 13 and the chain connecting piece 19 are mutually fixed, and the pin sleeve 13 and the inner tube 12 are mutually fixed due to the arrangement of the pin 21.

In addition, two pins No. two 22 distributed up and down are penetrated in the outer tube 11, the pins No. two 22 penetrate through the inner tube 12 and then are fixed in the pin sleeve 13, the connection strength between the outer tube 11, the inner tube 12 and the pin sleeve 13 is increased due to the arrangement of the pins No. two 22, two pins No. three 23 distributed up and down are penetrated in the inner tube 12, and the pins No. three 23 are fixed in the lock cylinder 14 so as to increase the connection strength between the inner tube 12 and the lock cylinder 14.

In addition, in order to further improve the connection strength between the pin housing 13 and the lock core 14, the outer tube 11 and the inner tube 12, two first notches 24 are respectively disposed at the left and right ends of the outer tube 11, and the extrados of the pin housing 13 is integrally formed with a first clamping plate 26 extending into the first notch 24 on the left side.

Two notches which are distributed up and down are arranged in the right end face of the inner tube 12, an anti-warping sheet 27 is inserted into the inner tube 12, a second clamping plate 28 which is clamped into the notches is arranged on the cambered surface of the anti-warping sheet 27, a left notch and a right notch which are communicated with each other to avoid shielding a keyhole in the lock core 15 are arranged in the anti-warping sheet 27, and the notch 24 on the right side enables the outer tube 11 to slightly deform to clamp the inner tube 12 and the lock core 14.

And prevent boring piece 29 still rotates in the lock core 14 to be connected with, prevent boring piece 29 paste in prevent the fin 27 in order to avoid in the lock core 14 drops, prevent boring piece 29's setting has increased the anti boring performance of lock core 14.

The outer tube 11 is sleeved with a shell 30, the shell 30 extends leftwards to the left side of the outer tube 11 and is sleeved with a part of the chain connecting piece 19, and the left end of the shell 30 is retracted.

The above embodiments are merely illustrative embodiments of the present utility model, but the technical features of the present utility model are not limited thereto, and any changes or modifications made by those skilled in the art within the scope of the present utility model are included in the scope of the present utility model.

Claims (6)

1. The shear resistant lock body comprises an outer tube (11), and is characterized in that: an inner tube (12) is fixedly arranged in the outer tube (11), a pin sleeve (13) and a lock core (14) are arranged in the inner tube (12), a lock core (15) which is used for receiving a key and can rotate relative to the lock core (14) is rotationally connected in the lock core (14), a lock gate (16) is connected to the left end of the lock core (15), the lock gate (16) is provided with an arc, the outer arc surface of the lock gate (16) is attached to the inner arc surface of the inner tube (12), a locking plate (17) is integrally formed on the side surface of the lock gate (16), a locking groove (18) which corresponds to the inner tube (12) in position and penetrates through the outer tube is formed in each of the outer tube (11), and the locking groove (18) is larger in left-right width than that of the locking plate (17);

The pin sleeve (13) is internally provided with a chain connecting piece (19), the chain connecting piece (19) extends leftwards to the outside of the outer tube (11), and the chain connecting piece (19) can be connected with a chain.

2. A shear lock body as defined in claim 1, wherein: the pin sleeve (13) is internally provided with a clamping groove (20) which is left and communicated to accommodate a part of the chain connecting piece (19), a pin (21) is nailed into the outer cambered surface of the inner tube (12), and the pin (21) penetrates through the clamping hole and penetrates through the pin sleeve (13).

3. A shear lock body as defined in claim 1, wherein: two pins (22) which are distributed up and down penetrate through the outer tube (11), and the pins (22) penetrate through the inner tube (12) and then are fixed in the pin sleeve (13);

Two pins (23) distributed up and down penetrate through the inner tube (12), and the pins (23) are fixed in the lock core (14).

4. A shear lock body as defined in claim 1, wherein: two first notches (24) which are distributed up and down are respectively arranged at the left end and the right end of the outer tube (11), and a first clamping plate (26) which extends into the first notch (24) at the left side is integrally formed on the outer cambered surface of the pin sleeve (13);

two notches which are distributed up and down are formed in the right end face of the inner tube (12), an anti-warping sheet (27) is inserted into the inner tube (12), a second clamping plate (28) which is clamped into the notch II is arranged on the cambered surface of the anti-warping sheet (27), and a through hole which penetrates left and right to avoid shielding a lock hole in the lock pin (15) is formed in the anti-warping sheet (27).

5. A shear lock body as defined in claim 4, wherein: the lock core (14) is also rotationally connected with an anti-drilling sheet (29), and the anti-drilling sheet (29) is attached to the anti-tilting sheet (27).

6. A shear lock body as defined in claim 1, wherein: the outer tube (11) is sleeved with a shell (30), the shell (30) extends leftwards to the left side of the outer tube (11) and is sleeved with a part of the chain connecting piece (19), and the left end of the shell (30) is retracted.