CN215830211U - Cylinder mortise lock capable of improving anti-theft performance - Google Patents

Abstract

The utility model relates to a pin tumbler mortise lock capable of improving anti-theft performance, which comprises a lock tube, a lock cylinder and a key, wherein the lock tube is provided with a plurality of pin tumbler holes, and pin tumbler assemblies are arranged in the pin tumbler holes; the side surface of the lock core is provided with a side column groove communicated with the bullet hole, a side column is arranged in the side column groove, side column holes and anti-slotting grooves are arranged on the side surfaces of the bullet components, return springs are arranged in the side column holes, and the positions of the side column holes opposite to the anti-slotting grooves are different; the lock tube is provided with a groove corresponding to the oblique angle lug, the key is provided with a tooth pattern, the bullet component is also provided with a conical lug extending out of the bullet hole, and the conical lug is matched with the tooth pattern; the open groove is prevented by the fact that the position of the opposite side column hole is irregular, the side column contacts the open groove to prevent movement to mislead judgment, the workload of an unlocking tool is increased, and the unlocking difficulty is improved.

Description

Cylinder mortise lock capable of improving anti-theft performance

Technical Field

The utility model relates to the technical field of locks, in particular to a cylinder mortise lock capable of improving the anti-theft performance.

Background

The lock is an article which people cannot leave in daily life, and people always use the lock to store important articles from old times, so that own property cannot be stolen by others. The core anti-theft part of the lock is the lock core, and the performance of the lock core directly influences the anti-theft performance of the whole lock. The most representative lock core structure is a side column lock core of a pin tumbler lock, which has the advantages of firm structure and difficult destructive opening, but has the defect that the side column hole position can be easily technically opened without anti-pulling. Therefore, the design of a cylinder lock capable of improving the anti-theft performance by misjudging the position of the side column hole becomes a technical problem which needs to be solved urgently.

Disclosure of Invention

The utility model provides a cylinder mortise lock capable of improving the anti-theft performance to solve the problems.

According to the technical scheme, the pin tumbler mortise lock capable of improving the anti-theft performance comprises a lock tube, a lock cylinder and a key, wherein the lock cylinder is inserted into the lock tube and provided with a key hole; the side surface of the lock core is provided with a side column groove, the side column groove is communicated with the side wall of the bullet hole, a side column is arranged in the side column groove, the side surface of the bullet component is provided with a side column hole and an anti-slotting, a reset spring is arranged in the side column hole, the positions of the side column holes are different when the anti-slotting is different, and the edge of the anti-slotting is provided with a guide arc surface; the side of the side column facing the spring hole is provided with a convex column matched with the side column hole, the other side of the side column is provided with an oblique angle convex block extending out of a side column groove, the lock tube is provided with a groove corresponding to the oblique angle convex block, one surface of the key is provided with a plurality of irregular teeth, the spring assembly is further provided with a conical convex block extending out of the spring hole, and the shape of the conical convex block is matched with the teeth.

After the structure is adopted, a key is inserted into the key hole to enable the tooth patterns to contact the conical convex blocks, the pin assembly is driven to move along the pin hole, meanwhile, the plurality of irregular tooth patterns push the conical convex blocks to rotate, the pin assembly is driven to rotate to enable the side column hole to be aligned with the convex columns on the side columns, the lock cylinder is rotated to enable the grooves on the lock tube to extrude the oblique-angle convex blocks to retreat into the side column grooves, the convex columns on the side columns are inserted into the side column holes to extrude the return springs to contract, and the lock cylinder is rotated to drive the shifting wheel to unlock; after the lock core is rotated back to the original position, the reset spring restores to push the convex column out of the side column hole, the oblique angle convex block enters the groove, the key is pulled out to enable the spring component to rotate and shift, and the side column hole and the convex column are staggered to prevent the oblique angle convex block from retreating into the side column groove; the anti-slotting is arranged on the bullet component, when the unlocking tool dials the bullet component, the convex column is opposite to the anti-slotting and slightly moves, misleading is caused, the anti-slotting and the side column hole are difficult to distinguish, and the unlocking difficulty is increased; the positions of the side column holes opposite to the different anti-slotting grooves are different, so that the rule that the side column holes and the anti-slotting grooves are held by hands in the unlocking process is avoided, and the workload required by unlocking by using an unlocking tool is increased; the guide cambered surface at the edge of the anti-slotting is convenient for guiding the convex column to leave, and the convex column is prevented from being clamped in the anti-slotting; the open groove is prevented by the fact that the position of the opposite side column hole is irregular, the side column contacts the open groove to prevent movement to mislead judgment, the workload of an unlocking tool is increased, and the unlocking difficulty is improved.

As a further improvement of the present invention, the tapered protrusion includes a pair of wide faces and a pair of narrow faces, and the pair of wide faces and the pair of narrow faces are staggered along a side face of the tapered protrusion.

After the structure is adopted, the pair of wide surfaces and the pair of narrow surfaces are arranged on the conical convex block at intervals, and when the teeth on the key contact the conical convex block, the rotation amplitude of the spring assembly is adjusted according to the contact of the wide surfaces or the narrow surfaces.

As a further improvement of the utility model, the pair of wide faces and the pair of narrow faces each form an angle of less than 90 ° with the bottom face of the bullet assembly.

After adopting above-mentioned structure, through setting up the contained angle that wide face and narrow face and bullet subassembly's bottom surface formed and being less than 90, the tartar of being convenient for promotes the toper lug and rotates, avoids the too big toper lug that leads to of angle to withstand the tartar and produces the conflict, is obstructed when making the key insert the key hole.

As a further improvement of the utility model, the lock pipe is provided with an inserting plate groove communicated with the bullet hole, and a cover plate is inserted in the inserting plate groove.

After adopting above-mentioned structure, set up the picture peg groove that communicates the bullet hole through the lock pipe, extract the apron from the picture peg inslot, expose the bullet hole and can take out bullet subassembly, be convenient for change bullet subassembly, avoid bullet subassembly wearing and tearing to lead to the lock core function impaired.

Drawings

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

Fig. 2 is a schematic view showing a radial section structure of the lock cylinder.

Fig. 3 is a schematic cross-sectional view of the lock tube.

1-lock tube, 2-lock core, 3-key hole, 4-marble hole, 5-marble component, 6-side column groove, 7-side column, 8-side column hole, 9-anti-slotting, 10-reset spring, 11-convex column, 12-concave groove, 13-conical bump, 14-inserting plate groove, 15-cover plate.

Detailed Description

As shown in fig. 1-3, the cylinder lock with improved anti-theft performance includes a lock tube 1, a lock cylinder 2 and a key, wherein the lock cylinder 2 is inserted into the lock tube 1 and provided with a key hole 3, the lock cylinder 2 is connected with a dial wheel, the lock tube 1 is provided with a plurality of cylinder holes 4 in an arrangement manner, the cylinder holes 4 all extend to the lock cylinder 2 and are communicated with the key hole 3, a cylinder assembly 5 is arranged in each cylinder hole 4, and the bottom end of each cylinder hole 4 is provided with a limit ring; the side surface of the lock core 2 is provided with a side column groove 6, the side column groove 6 is communicated with the side wall of the bullet hole 4, a side column 7 is arranged in the side column groove 6, the side surface of the bullet component 5 is provided with a side column hole 8 and an anti-slotting 9, a reset spring 10 is arranged in the side column hole 8, the positions of the anti-slotting 9 relative to the side column hole 8 are different, and the edge of the anti-slotting 9 is provided with a guide arc surface; the side column 7 is equipped with the projection 11 that suits with the side column hole 8 towards the one side of bullet hole 4, and the opposite side of this side column 7 is equipped with the oblique angle lug that stretches out side column groove 6, the lock tube 1 is equipped with the recess 12 corresponding with the oblique angle lug, the one side of key is equipped with a plurality of anomalous tartars, bullet subassembly 5 still is equipped with the toper lug 13 that stretches out bullet hole 4, and the shape of this toper lug 13 suits with the tartar.

When a key is inserted into the key hole 3 to enable the tooth patterns to contact the conical convex blocks 13, the pin assembly 5 is driven to move along the pin holes 4, meanwhile, the plurality of irregular tooth patterns push the conical convex blocks 13 to rotate, the pin assembly 5 is driven to rotate to enable the side column holes 8 to be aligned with the convex columns 11 on the side columns 7, the lock cylinder 2 is driven to enable the grooves 12 on the lock tube 1 to extrude the oblique-angle convex blocks to retreat into the side column grooves 6, the convex columns 11 on the side columns 7 are inserted into the side column holes 8 to extrude the return springs 10 to contract, and the lock cylinder 2 rotates to drive the shifting wheel to unlock; after the lock core 2 is rotated back to the original position, the reset spring 10 is restored to push the convex column 11 out of the side column hole 8, the bevel angle convex block enters the groove 12, the key is pulled out to enable the spring component 5 to rotate and shift, and the side column hole 8 and the convex column 11 are staggered to prevent the bevel angle convex block from retreating into the side column groove 6; by arranging the anti-open slot 9 on the bullet component 5, when the unlocking tool dials the bullet component 5, the convex column 11 is over against the anti-open slot 9 to slightly move, so that misleading is caused, the anti-open slot 9 and the side column hole 8 are difficult to distinguish, and the unlocking difficulty is increased; the positions of the different anti-opening grooves 9 corresponding to the side column holes 8 are different, so that the rule that the side column holes 8 and the anti-opening grooves 9 are held by hands in the unlocking process is avoided, and the workload required by unlocking by using an unlocking tool is increased; the guiding cambered surface at the edge of the anti-slotting 9 is convenient for guiding the convex column 11 to leave, and the convex column 11 is prevented from being clamped in the anti-slotting 9; the irregular slotting 9 of preventing of 8 positions of the relative side column hole of having set up has been realized, and the contact of side column 7 is prevented slotting 9 and is produced the activity and come the misleading judgement, has increased the work load of the instrument of unblanking, has improved the degree of difficulty of unblanking.

The tapered protrusion 13 includes a pair of wide faces and a pair of narrow faces, which are alternately arranged along the side faces of the tapered protrusion 13.

By providing a pair of wide faces and a pair of narrow faces spaced apart on the tapered projection 13, the rotational amplitude of the spring assembly 5 is adjusted depending on whether the wide or narrow faces are contacted when the teeth on the key contact the tapered projection 13.

The pair of wide faces and the pair of narrow faces form included angles with the bottom face of the bullet component 5 which are both smaller than 90 degrees.

The included angle formed by the wide face and the narrow face and the bottom face of the spring assembly 5 is smaller than 90 degrees, so that the conical convex block 13 is conveniently pushed by the tooth to rotate, the conical convex block 13 is prevented from abutting against the tooth to generate conflict due to the fact that the angle is too large, and a key is blocked when being inserted into the key hole 3.

The lock tube 1 is provided with an inserting plate groove 14 communicated with the bullet hole 4, and a cover plate 15 is inserted in the inserting plate groove 14.

Set up the picture peg groove 14 of intercommunication bullet hole 4 through lock pipe 1, extract apron 15 in the picture peg groove 14, expose bullet hole 4 and can take out bullet subassembly 5, be convenient for change bullet subassembly 5, avoid the wearing and tearing of bullet subassembly 5 to lead to the lock core function impaired.

Claims (4)

1. The utility model provides an improve pellet shot from a slingshot mortise lock of theftproof performance, includes lock pipe (1), lock core (2) and key, lock core (2) are inserted and are located in lock pipe (1) and are equipped with key hole (3), and this lock core (2) are connected and are equipped with thumb wheel, its characterized in that: the lock tube (1) is provided with a plurality of bullet holes (4) in an arrayed manner, the bullet holes (4) extend to the lock cylinder (2) and are communicated with the key hole (3), a bullet assembly (5) is arranged in each bullet hole (4), and the bottom end of each bullet hole (4) is provided with a limiting ring; the side surface of the lock cylinder (2) is provided with a side column groove (6), the side column groove (6) is communicated with the side wall of the bullet hole (4), a side column (7) is arranged in the side column groove (6), the side surfaces of the bullet component (5) are provided with a side column hole (8) and an anti-slotting (9), a reset spring (10) is arranged in the side column hole (8), the positions of the anti-slotting (9) relative to the side column hole (8) are different, and the edge of the anti-slotting (9) is provided with a guide arc surface; the side post (7) are equipped with projection (11) that suit with side post hole (8) towards one side of bullet hole (4), and the opposite side of this side post (7) is equipped with the oblique angle lug that stretches out side post groove (6), lock pipe (1) is equipped with recess (12) corresponding with the oblique angle lug, the one side of key is equipped with a plurality of anomalous tartars, bullet subassembly (5) still are equipped with toper lug (13) that stretch out bullet hole (4), and the shape and the tartar of this toper lug (13) suit.

2. A night lock with enhanced anti-theft properties according to claim 1, wherein: the tapered convex block (13) comprises a pair of wide faces and a pair of narrow faces, and the wide faces and the narrow faces are arranged in a staggered mode along the side face of the tapered convex block (13).

3. A night lock with enhanced anti-theft properties according to claim 2, wherein: the included angles formed by the pair of wide surfaces and the pair of narrow surfaces and the bottom surface of the bullet component (5) are all smaller than 90 degrees.

4. A night lock with enhanced anti-theft properties according to claim 1, wherein: the lock tube (1) is provided with an inserting plate groove (14) communicated with the bullet hole (4), and a cover plate (15) is inserted into the inserting plate groove (14).

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