CN115726632A - Double-system lock structure - Google Patents

Abstract

The invention relates to a double-locking structure. The lock shell comprises a panel and a base, and the number lock mechanism comprises a plurality of number wheels, a plurality of wheel cylinders penetrating the number wheels, a plurality of wheel cylinder springs and wheel rods. The number wheels are arranged at intervals, and the wheel rods are arranged in the wheel cylinders in a penetrating mode. The wheel cylinder spring is elastically pressed between the wheel cylinders, and the wheel cylinders are provided with plane parts and circular lugs. The key lock mechanism comprises a lock base and a lock core. The control sheet set comprises a lock core control sheet, a supporting spring and a shaft wheel. The lock core control sheet abuts against the lock seat and selectively abuts against the plane part or the circular lug. The supporting spring elastically presses against the bottom surface of the lock core control sheet. The lock core control sheet is provided with a convex shaft, the shaft wheel is sleeved with the convex shaft, and the lock core control sheet turns over around the convex shaft as the center to clamp the lock seat when being abutted against the round lug.

Description

Double-system lock structure

Technical Field

The present invention relates to a lock, and more particularly, to a dual-lock structure.

Background

The double-system lock is a lock which can be unlocked by using a key and a number. When the double-system lock is used, the lock can be unlocked by using a key, or the lock head is rotated after the number wheel reaches the correct number, so that the lock core is driven to unlock.

When the double-control lock is used, the operation of the number wheel is controlled by pushing the control pieces, and in addition, a lug is arranged on one side of the control pieces to sleeve the spring to provide elastic restoring force, so that the number wheel can rotate under the action of external force, and the unlocking or code changing action is carried out. However, in the process of rotating the number wheel, the convex block is easily tripped out of the spring by the action of external force to be separated from the positioning, so that the double-control lock is damaged because the number cannot be changed.

In view of the above, the present inventors have made extensive studies and studies to solve the above problems in combination with the application of the above prior art, and as a result, the present inventors have developed the present invention.

Disclosure of Invention

The invention provides a double-locking structure, wherein a lock core control sheet is turned over through the arrangement of a supporting spring and a shaft wheel so as to selectively clamp a lock seat, so that the internal structure has higher stability when a combination lock rotates, and the failure rate of the double-locking structure can be reduced.

In an embodiment of the present invention, the present invention provides a dual lock structure, which includes a lock housing, a combination lock mechanism, a key lock mechanism, and a control plate set. The lock shell comprises a panel and a base which are mutually combined, and the panel is provided with a plurality of windows. The combination lock mechanism is installed on the base and comprises a plurality of number wheels, a plurality of wheel cylinders penetrating the number wheels, a plurality of wheel cylinder springs and wheel rods, the number wheels are arranged at intervals, part of the number wheels are arranged in a protruding mode and exposed out of the window, the wheel rods penetrate the wheel cylinders, the wheel cylinder springs are respectively and elastically pressed between the wheel cylinders, and each wheel cylinder is provided with a plane portion and a circular lug. The key lock mechanism comprises a lock seat and a lock core, wherein the lock seat is arranged on the base, and the lock core is inserted into the lock seat and can selectively drive the lock seat to rotate. The control plate group comprises a lock core control plate, a support spring and a pair of shaft wheels, wherein the lock core control plate abuts against the lock seat and selectively abuts against the plane part or the circular lug of each wheel cylinder, the support spring elastically presses against the bottom surface of the lock core control plate, the lock core control plate is provided with a pair of convex shafts, the convex shafts are sleeved on the shaft wheels, and the lock core control plate can turn over and clamp the lock seat by taking the convex shafts as the center when abutting against the circular lug of each wheel cylinder.

Compared with the prior double-locking structure that the control piece of the double-locking structure is damaged due to the fact that the spring jumps away from the bump when the number wheel rotates, the double-locking structure is provided with the lock core control piece which abuts against the lock seat and selectively abuts against the plane part or the circular lug of the wheel cylinder, the shaft wheel is sleeved with the convex shaft of the lock core control piece, and the supporting spring is arranged to elastically press against the bottom surface of the lock core control piece, so that the lock core control piece can turn over and selectively clamp the lock seat by taking the convex shaft as the center, the internal structure has higher stability when the number lock rotates, the failure rate of the double-locking structure can be reduced, and the practicability of the double-locking structure is improved.

The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.

Drawings

Fig. 1 is a schematic perspective view of a double-locking structure of the present invention.

Fig. 2 is an exploded perspective view of the double locking structure of the present invention.

Fig. 3 is a schematic perspective view of the internal structure of the double lock of the present invention.

Fig. 4 and 5 are sectional views of the double lock according to the present invention.

FIG. 6 is a plan view of the combination wheel of the dual lock of the present invention when correct.

FIG. 7 is a plan view of the combination wheel of the dual lock of the present invention shown in an incorrect position.

Fig. 8 is a schematic perspective view of the inner structure of the double lock according to the present invention when the number wheel is incorrect.

Fig. 9 and 10 are combined cross-sectional views of the inner structure of the double lock according to the present invention in both lateral directions when the number wheel is incorrect.

Wherein, the reference numbers:

1: double-system lock

10 casing of lock

11: panel

111 through hole

112, window

12, a base

121: axle seat

122 support sheet seat

20: combination lock mechanism

21 number wheel

210 clamping groove

211 positioning dents

22: wheel cylinder

221 planar portion

222 round lug

223 convex ribs

23, wheel cylinder spring

24 wheel rod

25: shaft cover

26 positioning sheet

261 extension part

262 claw part

30 key lock mechanism

31 knob

32, lock core

33, lock seat

34: screw

40 control sheet group

41 number control sheet

411 Main push rod

412 secondary push rod

413 pushing part

42 lock core control sheet

420 convex shaft

421 frame plate

422 convex finger

423 wheel groove

43 supporting spring

44 axle wheel

Detailed Description

The invention will be described in detail with reference to the following drawings, which are provided for illustration purposes and the like:

fig. 1 to 5 are schematic perspective views, exploded perspective views, schematic perspective views of an internal structure of a dual lock, and combined sectional views in two lateral directions of the internal structure of the dual lock according to the present invention. The invention provides a double-control lock 1, which mainly comprises a lock shell 10, a combination lock mechanism 20, a key lock mechanism 30 and a control plate group 40, wherein the combination lock mechanism 20, the key lock mechanism 30 and the control plate group 40 are arranged in the lock shell 10. The control panel set 40 controls the combination lock mechanism 20 and the key lock mechanism 30 to provide the operations of locking and unlocking or changing numbers of the dual lock 1. The structure of the double lock 1 will be described in more detail below.

The lock case 10 includes a panel 11 and a base 12 combined with each other, and the panel 11 has a through hole 111 and a plurality of windows 112.

The combination lock mechanism 20 is mounted to the base 12. The combination lock mechanism 20 includes a plurality of combination wheels 21, a plurality of barrels 22 through which the combination wheels 21 are inserted, a plurality of barrel springs 23, and a wheel lever 24. The number wheels 21 are disposed at intervals and partially protrude out of the window 112 of the panel 11, and the number wheels 21 respectively have a plurality of slots 210. The wheel shaft 24 is inserted into the wheel cylinders 22. The wheel cylinder springs 23 are respectively elastically pressed between the wheel cylinders 22.

Specifically, the base 12 has a pair of shaft seats 121. The wheel lever 24 is provided at both ends thereof on the pair of shaft seats 121. In addition, the combination lock mechanism 20 further includes a pair of shaft covers 25. The pair of shaft caps 25 are locked to the base 12 and cover both ends of the wheel bar 24.

In addition, each of the barrels 22 has a flat portion 221, a circular lug 222 and a plurality of ribs 223. The ribs 223 of each of the wheel cylinders 22 can selectively engage with or disengage from the corresponding slots 210 of the number wheel 21 through the wheel cylinder springs 23.

In this embodiment, the base 12 has a plurality of strut seats 122. The combination lock mechanism 20 further includes a retaining tab 26. The positioning plate 26 includes an extending portion 261 and a plurality of claw portions 262 spaced apart from each other on opposite sides of the extending portion 261, the extending portion 261 being disposed on the plurality of strut seats 122. In addition, a plurality of positioning dents 211 are formed on the edge surface of each of the number wheels 21 at equal intervals. The claw portions 262 can be selectively positioned on the positioning dents 211.

Further, the key lock mechanism 30 includes a knob 31, a lock core 32 and a lock seat 33. The knob 31 protrudes in the through hole 111 of the panel 11. The lock holder 33 is mounted on the base 12 corresponding to the position of the knob 31. One end of the lock core 32 is connected to the knob 31, and the other end is inserted into the lock seat 33 and can selectively drive the lock seat 33 to rotate.

The control plate set 40 includes a combination control plate 41, a lock control plate 42, a support spring 43 and a pair of pulleys 44. The combination control piece 41 abuts against the lock core 32 and selectively presses against each of the barrel springs 23. It is noted that the pair of shaft caps 25 of the combination lock mechanism 20 also simultaneously cover the pair of shaft wheels 44, positioning the pair of shaft wheels 44 on the base 12.

In an embodiment of the present invention, the number control plate 41 includes a main push rod 411 surrounding the lock core 32, a plurality of sub push rods 412 extending transversely from one side of the main push rod 411, and a pushing portion 413 extending downward from each sub push rod 412, wherein the pushing portion 413 abuts against the corresponding wheel cylinder spring 23.

In addition, the lock core control plate 42 abuts against the lock seat 33 and selectively abuts against the plane portion 221 or the circular lug 222 of each wheel cylinder 22. The supporting spring 43 is disposed on the base 12 and elastically presses against the bottom surface of the barrel control plate 42 (see fig. 4). In addition, the lock core control plate 42 has a pair of protruding shafts 420, and the pair of rollers 44 are correspondingly engaged with the pair of protruding shafts 420. Accordingly, the lock core control plate 42 can rotate around the pair of protruding shafts 420 to engage the lock seat 33 when abutting against the circular lugs 222 of the wheel cylinders 22.

In one embodiment of the present invention, the lock cylinder control plate 42 includes a frame plate 421 surrounding the lock seat 33, and a plurality of fingers 422 extending laterally from one side of the frame plate 421. Specifically, the protruding shaft 420 of the lock cylinder control plate 42 extends outward from the opposite side of the frame plate 421. In addition, the lock core control piece 42 is provided with a wheel groove 423 between the adjacent fingers 422. Each of the number wheels 21 is inserted into the corresponding wheel groove 423.

In the present embodiment, the double lock 1 includes a plurality of supporting springs 43. The supporting springs 43 are disposed on the base 12 and elastically press against the bottom surface of the lock cylinder control plate 42. The protruding shafts 421 at both sides of the lock cylinder control plate 42 are respectively inserted with the shaft wheel 44. The combination lock mechanism 20 includes three combination wheels 21, three barrels 22, and three barrel springs 23. Three wheel cylinders 22 are correspondingly inserted into the three number wheels 21, and three wheel cylinder springs 23 are respectively elastically pressed against one side of each wheel cylinder 22 to elastically push each wheel cylinder 22. Three sets of number wheels 21 and wheel cylinder springs 23 arranged at intervals sequentially penetrate through the wheel rod 24, and are combined on the wheel rod 24 through the pressing sheets 27 on the left side and the right side. The wheel lever 24 is provided at both ends thereof on the pair of shaft seats 121. In addition, the pair of shaft caps 25 cover both ends of the wheel bar 24 and the pair of shaft wheels 44, thereby integrating the turn-key control plate 42 and the combination lock mechanism 20 in the base 12.

Furthermore, the lock seat 33 is disposed on the base 12, and the lock core 32 is disposed in the lock seat 33. The lock core 32 is fixed to the base 12 by a plurality of screws 34 and can rotate relative to the lock seat 33. In addition, the main push rod 411 of the combination control plate 41 surrounds the lock core 32, and the sub push rods 412 are correspondingly inserted between the combination wheels 21, so that the pushing parts 413 extending downward from the sub push rods 412 are abutted against one side of each of the barrel springs 23 (see fig. 5). Accordingly, the user can unlock the lock by rotating the lock cylinder 32 with a key, or can unlock the double lock 1 by rotating the lock cylinder 32 by rotating the key lock mechanism 30 to a correct combination of numbers.

Please refer to fig. 6, which is a schematic plan view illustrating the number wheel of the dual lock of the present invention when correct. When the combination wheels 21 rotate to the set combination, the plane parts 221 of the wheel cylinders 22 simultaneously abut against the cylinder control plate 42 (see fig. 4), the frame plate 421 of the cylinder control plate 42 is inserted straight out of the lock seat 33 (see fig. 3), and the lock cylinder 32 can rotate to unlock. It should be noted that the ribs 223 of the wheel cylinders 22 are disengaged from the corresponding slots 210 of the number wheel 21.

Please refer to fig. 7 to 10, which show a plan view of the dual lock according to the present invention when the number wheel is incorrect, a three-dimensional appearance view of the internal structure of the dual lock when the number wheel is incorrect, and a combined cross-sectional view of the internal structure of the dual lock in two lateral directions when the number wheel is incorrect. As shown in fig. 7, when the combination wheels 21 are rotated to the non-set combination, the circular lug 222 of at least one wheel cylinder 22 abuts against the lock cylinder control plate 42 (see fig. 9), so that the lock cylinder control plate 42 is pressed by the circular lug 222 and rotates around the pair of wheels 44. At this time, the frame plate 421 of the lock core control plate 42 will catch the outer edge of the lock seat 33 (see fig. 8), at this time, the lock seat 33 cannot rotate, the lock core 32 cannot drive the lock seat 33 to rotate, so that the dual lock 1 is in the locked state.

It should be noted that, as shown in fig. 10, when the dual lock 1 of the present invention is in the locked state, the main push rod 411 of the combination control plate 41 is pushed by the lock core 32, and at this time, the sub push rods 412 and the pushing portions 413 push against the corresponding wheel cylinders 22, so that the protruding ribs 223 of the wheel cylinders 22 are inserted into the slots 210 of the corresponding number wheels 21.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. A dual-pawl lock structure, comprising:

a lock shell, which comprises a panel and a base that are mutually combined, wherein the panel is provided with a plurality of windows;

the number lock mechanism is arranged on the base and comprises a plurality of number wheels, a plurality of wheel cylinders penetrating through the number wheels, a plurality of wheel cylinder springs and a wheel rod, the number wheels are arranged at intervals, part of the number wheels are exposed out of the windows, the wheel rod penetrates through the wheel cylinders, the wheel cylinder springs are respectively and elastically pressed between the wheel cylinders, and each wheel cylinder is provided with a plane part and a circular lug;

a key lock mechanism, including a lock seat and a lock core, the lock seat is mounted on the base seat, the lock core is inserted in the lock seat and can selectively drive the lock seat to make rotation; and

the lock core control piece is provided with a pair of convex shafts, the pair of convex shafts are sleeved on the pair of convex shafts, and the lock core control piece can turn over and clamp the lock seat by taking the pair of convex shafts as centers when abutting against the round lugs of each wheel cylinder.

2. A dual lock mechanism as claimed in claim 1, wherein said face plate has a through-hole, said key lock mechanism including a knob projecting through said through-hole, one end of said core being connected to said knob.

3. The dual locking arrangement of claim 1, wherein the base has a pair of axle seats, and the two ends of the wheel bar are disposed on the pair of axle seats; and

the combination lock mechanism further includes a pair of shaft covers covering the two ends of the wheel rod and the pair of shaft wheels.

4. The dual locking structure of claim 1 wherein the base has a plurality of tab receptacles, the combination lock mechanism further comprising a positioning tab, the positioning tab comprising an extension portion and a plurality of claw portions spaced apart on opposite sides of the extension portion, the extension portion being disposed on the plurality of tab receptacles; and

the edge surface of each number wheel is provided with a plurality of positioning dents at equal intervals, and the plurality of claw parts can be selectively positioned on the plurality of positioning dents.

5. The dual lock mechanism as claimed in claim 1, wherein each of the plurality of numbering wheels has a plurality of engaging slots, each of the plurality of barrels has a plurality of protruding ribs, and each of the plurality of barrels is capable of engaging or disengaging the protruding ribs with or from the engaging slots of the corresponding number wheels by the plurality of barrel springs.

6. The dual lock structure as claimed in claim 1, wherein the core control plate comprises a frame plate surrounding the lock housing, a plurality of fingers extending laterally from one side of the frame plate, and the plurality of fingers extend to the bottom sides of the plurality of corresponding wheel cylinders.

7. The lock assembly as claimed in claim 6, wherein the barrel control plate has a wheel groove between adjacent fingers, and each of the number wheels is inserted into the corresponding wheel groove.

8. The dual lock structure as claimed in claim 6, wherein the protruding shafts of the barrel control pieces extend outward from opposite sides of the frame plate.

9. The dual lock structure as claimed in claim 1, wherein the set of control plates further comprises a combination control plate abutting the lock core and selectively pressing against each of the barrel springs.

10. The dual-lock structure as claimed in claim 9, wherein the number control plate comprises a main push rod surrounding the lock core, a plurality of sub push rods transversely extending from one side of the main push rod, and a pushing portion extending downward from each sub push rod, the pushing portion pushing against the corresponding plurality of wheel cylinder springs.

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