A new lock core and lock

Abstract

The present invention discloses a novel lock core and lock, including: a connecting rod, a fixing sleeve extending from the connecting rod; a lock core mechanism, including an unlocking dial wheel arranged at the rear side of the fixing sleeve, the unlocking dial wheel is slidably connected with the fixing sleeve, a shaft sleeve is arranged in the unlocking dial wheel, a connecting piece is arranged in the unlocking dial wheel, the front end of the connecting piece passes through the fixing sleeve, a limiting through hole is arranged at the rear end of the connecting piece, an elastic part is arranged in the limiting through hole, top beads are arranged at both ends of the elastic part, and a limiting sleeve is arranged at the position of the connecting piece corresponding to the limiting through hole. The present invention has the characteristics of simple structure, easy processing and strong rigidity; at the same time, the novel lock core provided by the present invention is easy to manufacture, easy to assemble, stable in structure and durable.

Description

Technical Field

[0001] The invention relates to the technical field of anti-theft locks, and in particular to a novel lock core and a lock. Background Art

[0002] The traditional anti-theft door lock core is easily twisted open by a lock opening tool, and is also easily drilled open by an electric drill. The reason is that the pin is used to clamp the rotating core of the lock core, and the rotating core is directly connected to the fork. When the rotating core encounters a strong twist, the pin is twisted and damaged, and then the rotating core is rotated, thereby driving the fork to rotate, and the door lock is opened. In addition, the traditional anti-theft door lock core is easily drilled open by an electric drill, because the rotating core is stuck with a pin. When the electric drill drills the rotating core, it is easy to exert force, and the rotating core is very easy to be drilled. Therefore, the traditional anti-theft door lock core cannot effectively prevent prying and impact. Therefore, the inventor has previously developed and applied for a patent: CN201610199496.9, an improved design of the lock core mechanism, which achieves the effect of anti-theft and explosion-proof through the use of a spring, an outer dial wheel convex connection and two locking plates. However, there is still a problem in actual use and assembly. When installing the locking plate and the sleeve, certain skilled skills are still required, and the actual production effect cannot be achieved in a fast processing and production process. Summary of the invention

[0003] In view of this, on one hand, the present invention provides a new type of lock core, including: a connecting rod, on which a fixed sleeve is extended; a lock core mechanism, including an unlocking dial wheel arranged on the rear side of the fixed sleeve, the unlocking dial wheel is slidably connected with the fixed sleeve, the unlocking dial wheel is provided with a shaft sleeve, the unlocking dial wheel is provided with a connecting piece, the front end of the connecting piece passes through the fixed sleeve, the rear end of the connecting piece is provided with a limiting through hole, the limiting through hole is provided with an elastic machine part, top beads are provided at both ends of the elastic machine part, and a limiting sleeve is provided at the position of the connecting piece corresponding to the limiting through hole.

[0004] Furthermore, a flange portion is provided in the middle of the connecting piece, and the connecting piece forms a locking cavity with the shaft sleeve through the flange portion, and the connecting piece is movably arranged in the middle of the unlocking dial wheel through the limiting sleeve, the shaft sleeve and the flange portion.

[0005] Furthermore, a transmission rotating block is provided at the rear end of the connecting piece, a cavity is provided inside the transmission rotating block, a compression spring is provided in the cavity, a push bolt is provided on the compression spring, and the push bolt is in contact with the connecting piece.

[0006] Another aspect of the present invention provides a lock comprising a front lock shell, a rear lock shell and a novel lock core, wherein the novel lock core is the novel lock core mentioned above.

[0007] By applying the technical solution of the present invention, in the initial state, lock shells are provided at the front and rear ends of the connecting rod of the present invention. Under normal circumstances, the key is inserted into the lock shell. After the key is inserted into the lock shell and the teeth on the key are confirmed to be correct, the key can be turned to unlock the door. However, when the door is violently broken outside, as shown in the figure, the lock shell close to the outer side of the door loosens and detaches, so that the front end of the connecting piece is unobstructed, and the top bolt at the rear end of the connecting piece pushes the connecting piece forward due to the action of the internal compression spring, and the limiting through hole of the connecting piece is separated from the position of the limiting sleeve, and vacancies appear in the upper and lower positions. At this time, the elastic mechanism arranged in the limiting through hole pushes out the top beads on both sides, so that the connecting piece cannot be connected to the rotating block. Since the locking cavity is occupied by the top bead, the connecting piece cannot be pushed inward, so that the lock core mechanism provided by the present invention achieves the effect of explosion-proof and anti-theft.

[0008] Therefore, the present invention has the characteristics of simple structure, easy processing and strong rigidity; at the same time, the new lock core provided by the present invention is easy to manufacture, convenient to assemble, stable in structure and durable.

[0009] In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The accompanying drawings, which constitute a part of this specification and are used to further understand the present invention, illustrate preferred embodiments of the present invention and are used together with the specification to explain the principle of the present invention. In the drawings:

[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0012] Figure 2 It is a schematic diagram of a partially exploded three-dimensional structure of the present invention;

[0013] Figure 3 It is a partial cross-sectional structural schematic diagram of the present invention;

[0014] Figure 4 It is a schematic diagram of the structure of the present invention when it is violently destroyed;

[0015] Figure 5 is a schematic structural diagram of a limit sleeve in Embodiment 2 of the present invention; and

[0016] Figure 6 It is a schematic diagram of the partial cross-sectional structure of Example 2 of the present invention.

[0017] The above drawings include the following reference numerals:

[0018] 10 is a connecting rod, 11 is a fixing sleeve, 20 is a lock core mechanism, 21 is an unlocking dial wheel, 22 is a shaft sleeve, 23 is a connecting plate, 24 is a limiting through hole, 25 is an elastic part, 26 is a top bead, 27 is a limiting sleeve, 271 is a circular groove, 272 is a roller, 28 is a flange portion, 29 is a locking cavity, 30 is a transmission rotating block, 31 is a cavity, 32 is a compression spring, 33 is a top bolt, 40 is a front lock shell, 50 is a rear lock shell, and 51 is a rotating handle. DETAILED DESCRIPTION

[0019] The embodiments of the present invention are described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0020] Embodiment 1:

[0021] refer to Figures 1 to 4 ,like Figure 1 A new type of lock core shown in the figure includes: a connecting rod 10, on which a fixed sleeve 11 is extended; a lock core mechanism 20, which includes an unlocking dial wheel 21 arranged on the rear side of the fixed sleeve 11, the unlocking dial wheel 21 is slidably connected to the fixed sleeve 11, a shaft sleeve 22 is arranged in the unlocking dial wheel 21, a connecting piece 23 is arranged in the unlocking dial wheel 21, the front end of the connecting piece 23 passes through the fixed sleeve 11, and the rear end of the connecting piece 23 is provided with a limiting through hole 24, an elastic machine part 25 is arranged in the limiting through hole 24, and top beads 26 are arranged at both ends of the elastic machine part 25, and a limiting sleeve 27 is provided at the position of the connecting piece 23 corresponding to the limiting through hole 24.

[0022] like Figure 3 and Figure 4 As shown, a flange portion 28 is further provided in the middle of the connecting piece 23 , and the connecting piece 23 forms a locking cavity 29 with the shaft sleeve 22 through the flange portion 29 . The connecting piece 23 is movably arranged in the middle of the unlocking dial wheel 21 through the limiting sleeve 27 , the shaft sleeve 22 and the flange portion 28 .

[0023] like Figure 3 and Figure 4 As shown, a transmission block 30 is further provided at the rear end of the connecting piece 23 , a cavity 31 is provided inside the transmission block 30 , a compression spring 32 is provided in the cavity 31 , a push bolt 33 is provided on the compression spring 32 , and the push bolt 33 is in contact with the connecting piece 23 .

[0024] According to another aspect of the present invention, a lock is provided, comprising a front lock housing 40, a rear lock housing 50 and a novel lock core as in the above-mentioned embodiment, wherein the front lock housing and the rear lock housing are adapted to be mounted on the novel lock core, and in the initial state, the front and rear ends of the connecting rod of the present invention are provided with lock housings, and under normal circumstances, the key is inserted into the lock housing, and the key can be turned to unlock the door after the teeth on the key are confirmed to be correct. However, when the door is violently broken outside, the lock core is unlocked. Figure 4 As shown, the lock shell near the outer side of the door is loosened and detached, so that the front end of the connecting piece is unobstructed, and the top bolt at the rear end of the connecting piece pushes the connecting piece forward due to the action of the internal compression spring, and the limiting through hole of the connecting piece is separated from the position of the limiting sleeve, and vacancies appear in the upper and lower positions. At this time, the elastic mechanism arranged in the limiting through hole pushes out the top beads on both sides, so that the connecting piece cannot be connected to the rotating block. Since the locking cavity is occupied by the top bead, the connecting piece cannot be pushed inward, so that the lock core mechanism provided by the present invention achieves the effect of explosion-proof and theft-proof.

[0025] Embodiment 2:

[0026] refer to Figures 1 to 6 ,like Figure 1 A new type of lock core shown in the figure includes: a connecting rod 10, on which a fixed sleeve 11 is extended; a lock core mechanism 20, which includes an unlocking dial wheel 21 arranged on the rear side of the fixed sleeve 11, the unlocking dial wheel 21 is slidably connected to the fixed sleeve 11, a shaft sleeve 22 is arranged in the unlocking dial wheel 21, a connecting piece 23 is arranged in the unlocking dial wheel 21, the front end of the connecting piece 23 passes through the fixed sleeve 11, and the rear end of the connecting piece 23 is provided with a limiting through hole 24, an elastic machine part 25 is arranged in the limiting through hole 24, and top beads 26 are arranged at both ends of the elastic machine part 25, and a limiting sleeve 27 is provided at the position of the connecting piece 23 corresponding to the limiting through hole 24.

[0027] like Figure 5 As shown, the limiting sleeve 27 is provided with a plurality of circular grooves 271 , and the circular grooves 271 are provided with rollers 272 .

[0028] like Figure 6 As shown, a flange portion 28 is further provided in the middle of the connecting piece 23 , and the connecting piece 23 forms a locking cavity 29 with the shaft sleeve 22 through the flange portion 29 . The connecting piece 23 is movably arranged in the middle of the unlocking dial wheel 21 through the limiting sleeve 27 , the shaft sleeve 22 and the flange portion 28 .

[0029] like Figure 6 As shown, a transmission block 30 is further provided at the rear end of the connecting piece 23 , a cavity 31 is provided inside the transmission block 30 , a compression spring 32 is provided in the cavity 31 , a push bolt 33 is provided on the compression spring 32 , and the push bolt 33 is in contact with the connecting piece 23 .

[0030] According to another aspect of the present invention, a lock is provided, comprising a front lock housing 40, a rear lock housing 50 and a novel lock core as in the above embodiment.

[0031] As shown in the figure, since the rear lock shell is unlocked by turning the handle 51, this lock is a single-unlock lock. The rear lock shell of the single-unlock lock cylinder needs to bear the special feature of idling, so a number of circular grooves are set on the limit sleeve, which are connected to the unlocking dial wheel through rollers set on the circular grooves, changing the original surface-to-surface contact method into line-to-surface contact, greatly reducing friction, and enhancing the service life of the lock while being able to prevent theft and explosion.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A new type of lock cylinder, characterized in that: The invention comprises: a connecting rod, a fixing sleeve is extended from the connecting rod; a lock core mechanism, the lock core mechanism comprises an unlocking dial wheel arranged at the rear side of the fixing sleeve, the unlocking dial wheel is slidably connected with the fixing sleeve, a shaft sleeve is arranged in the unlocking dial wheel, a connecting piece is arranged in the unlocking dial wheel, the front end of the connecting piece passes through the fixing sleeve, a limiting through hole is arranged at the rear end of the connecting piece, an elastic machine part is arranged in the limiting through hole, top beads are arranged at both ends of the elastic machine part, and a limiting sleeve is arranged at the position of the connecting piece corresponding to the limiting through hole; The middle part of the connecting piece is also provided with a flange part, the connecting piece forms a locking cavity with the shaft sleeve through the flange part, and the connecting piece is movably arranged in the middle part of the unlocking dial wheel through the limiting sleeve, the shaft sleeve and the flange part; A transmission rotating block is also provided at the rear end of the connecting piece, a cavity is provided inside the transmission rotating block, a compression spring is provided in the cavity, a push bolt is provided on the compression spring, and the push bolt contacts the connecting piece.

2. A lock comprising a front lock housing, a rear lock housing and a new lock core, characterized in that: The novel lock core is the novel lock core described in claim 1.

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