AU2018101170A4

AU2018101170A4 - Locking device

Info

Publication number: AU2018101170A4
Application number: AU2018101170A
Authority: AU
Inventors: Chih Chung Chang
Original assignee: Gianni Industries Inc
Current assignee: Gianni Industries Inc
Priority date: 2018-08-15
Filing date: 2018-08-15
Publication date: 2018-09-13
Anticipated expiration: 2026-08-15

Abstract

A locking device capable of distributing external impact includes a main member, a base, an electromagnetic valve, a lock assembly, and a cover plate. When the electromagnetic valve is powered on, a shaft is vertically displaced. 5 At least a first ring and a second ring at two ends of the shaft are detachably pressed against first and second extension pieces to fix a lock element. The first ring and a second ring is able to distribute external impact applied to the locking device. The locking device is therefore more robust structurally, preventing structural deformation and displacement, and prolonging the 10 locking device's operation life. 700 8 1 43 71 22 441 43124 42 2 -15 200 61 34 252321 13 300 )o 5

Description

TITLE: LOCKING DEVICE

BACKGROUND OF THE INVENTION (a) Technical Field of the Invention

The present invention is generally related to locking device, and more particular to a locking device that may distribute external impact.

(b) Description of the Prior Art

Locking devices, such as electromagnetic locks, electronic locks, electrically controlled locks, are commonly applied in public areas, households, offices to prevent theft and unauthorized access. For these locking devices, the electromagnetic valve is a key component.

R. O. C. Taiwan Patent No. M330337, titled “Adjustment structure for open/close status of electromagnetic lock,” teaches an electromagnetic valve, as illustrated in its FIG 2, having a block selectively retracted into a lock body by the conduction of the electromagnetic valve.

According to this teaching, the block is designed to sustain force from only a single side. When the electromagnetic valve is conducted (or not), a latch bolt on the door is fixed in its place, thereby locking the door. A drawback of this teaching is that, when the door is under external force or impact (e.g., the door is manually pushed), the block undergoes force from one side. The lock as a whole would suffer uneven or imbalanced stress. After

2018101170 15 Aug 2018 a period of usage, the components of the lock would be worn off, displaced, or deformed, reducing the operation life of the lock.

2018101170 15 Aug 2018

SUMMARY OF THE INVENTION

Therefore, an objective of the present invention is to provide a locking device capable of distributing external force. The locking device includes a main member, a base, an electromagnetic valve, a lock assembly, and a cover plate. The main member provides an accommodation space, a frame is extended from the main member, the frame has a channel connecting the accommodation space, two positioning elements are provided to a top side and a bottom side of the accommodation space, two second positioning elements are provided to a lateral side of the positioning elements, respectively. Two third positioning elements are provided to a back side of the base, the base is fixed in the accommodation space through the third positioning elements, the base has a first lateral section and a second lateral section extended towards a front direction, a first opening and a second opening are respectively configured on the first and second lateral sections. The electromagnetic valve has a shaft with a top end and a bottom end mn through the first and second openings of the base, respectively, so that the electromagnetic valve is held between the first and second lateral sections, at least a first ring surrounds the top end and at least a second ring surrounds the bottom end of the shaft. The lock assembly has an elongated lock element and an axle, a first extension piece and a second extension piece are extended laterally from the lock

2018101170 15 Aug 2018 element and pin-connected to the axle, the axle’s two ends are rotatably joined with the two second positioning elements of the main member, respectively. The cover plate has an indentation, a first fastener, and a second fastener, a first piece and a second piece are provided above and below the indentation, respectively, along a top edge of the first piece and a bottom edge of the second piece, there are a first notch and a second notch, respectively, for fastening the cover plate to a side of the accommodation space by applying the first and second fasteners to the positioning elements;

Preferably, the two positioning elements are screw holes; the two second 10 positioning elements are via holes; the third positioning elements are via holes;

and the first and second fasteners are screws.

Preferably, the electromagnetic valve has a first clamping element and a second clamping element respectively engaging the first and second lateral sections.

Preferably, the locking device further includes a detection element, a detection switch, and a switch base, wherein a fourth positioning element is configured on the switch base; the detection switch is fixed to the switch base; the switch base is fixed in the accommodation space through the fourth positioning element; the switch base and the detection switch are both inside the accommodation space; the detection element has a rod and a block is

2018101170 15 Aug 2018 configured at least at a top end of the rod; the rod is rotatably and vertically mounted in the accommodation space so that the detection element is received in the indentation and the block selectively presses a button of the detection switch; and the rod is positioned by the first and second pieces.

Preferably, the locking device further includes a second cover plate with a third opening and a fourth opening, wherein the first and second fasteners run through the third and fourth openings, respectively, so as to fix the second cover plate to the main member.

Preferably, a torsion spring is configured on the axle.

When the electromagnetic valve is powered on, the shah is vertically displaced, and the first and second rings are detachably pressed against the first and second extension pieces to fix the lock element. The first ring and a second ring is able to distribute external impact applied to the locking device. The locking device is therefore more robust structurally, preventing structural deformation and displacement, and prolonging the locking device’s operation life.

The foregoing objectives and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the

2018101170 15 Aug 2018 invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts.

Many other advantages and features of the present invention will become 5 manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.

2018101170 15 Aug 2018

BRIEF DESCRIPTION OF THE DRAWINGS

FIG 1 is a perspective break-down diagram showing a locking device according to an embodiment of the present invention.

FIG 1A is a perspective diagram showing a lock assembly, a base, an 5 electromagnetic valve, a detection switch, and a switch base of the locking device of FIG 1.

FIG 2 is a perspective diagram of the locking device of FIG 1.

FIG 3 is a perspective diagram of the locking device of FIG 1 installed on a door frame and a door is about to be closed to the door frame.

FIG 4 is a top-view diagram showing the door is closed to the door frame of FIG 3.

FIG 5 is side-view diagram showing the locking device of FIG 1 where a shaft is about to move upward.

FIG 6 is side-view diagram showing the locking device of FIG 5 after the 15 shaft is moved upward.

FIG 7 is side-view diagram showing the locking device of FIG 1 where a shaft is about to move downward.

FIG 8 is side-view diagram showing the locking device of FIG 5 after the shaft is moved downward.

2018101170 15 Aug 2018

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The following descriptions are exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims.

As shown in FIGS. 1 and 2, a locking device 600 according to an embodiment of the present invention includes a main member 1, a base 2, an electromagnetic valve 3, a lock assembly 4, and a cover plate 5.

The main member 1 provides an accommodation space 10. A frame 11 is extended from the main member 1. The frame 11 has a channel 12 connecting the accommodation space 10. The channel 12 is for a latch bolt to pass through. Two positioning elements 13 are provided to a top side and a bottom side of the accommodation space 10. Two second positioning elements 14 are provided to a lateral side of the positioning elements 13, respectively. In the present embodiment, the two positioning elements 13 are screw holes and the two second positioning elements 14 are indentations, blind holes, or preferably

2018101170 15 Aug 2018 via holes.

Aback side of the base 2 has two third positioning elements 21 for joining with two holes 15 on a back side of the main member 1. In the present embodiment, the third positioning elements 21 are via holes, and bolts may be run through the third positioning elements 21 into the holes 15. The base 2 has a first lateral section 22 and a second lateral section 23 extended towards a front direction. A first opening 24 and a second opening 25 are respectively configured on the first and second lateral sections 22 and 23.

The electromagnetic valve 3 includes an axial shaft 31 controlled by the 10 electromagnetic valve 3 and having its two ends extended outside a top end and a bottom end of the electromagnetic valve 3. The two ends of the shaft 31 run through the first and second openings 24 and 25 of base 2, respectively. Therefore, the electromagnetic valve 3 is held between the first and second lateral sections 22 and 23. The electromagnetic valve 3 itself is wider than the first and second openings 24 and 25, and therefore would not fall off from the base 2. Two first rings 32 surround the exposed top end of the shaft 31, and two second rings 33 surround the exposed bottom end of the shaft 31.

The lock assembly 4 includes an elongated lock element 41 and an axle 42. A first extension piece and a second extension piece 43 and 44 are extended laterally from the lock element 41 and pin-connected to the axle 42.

2018101170 15 Aug 2018

The axle’s two ends are rotatably joined with the two second positioning elements 14 of the main member 1, respectively. The lock element 41 as such may be turned relative to the axle 42 into the accommodation space 10. A torsion spring 700 may be configured on the axle 42. The torsion spring 700’s two ends may be fixed to any two places inside the main member 1 or other components of the locking device 600. Then, when the lock element 41 is not forced into the accommodation space 10, the torsion spring 700 may restore the lock element 41 automatically

The cover plate 5 has an indentation 51, a first fastener 52, and a second fastener 53. A first piece 54 and a second piece 55 are provided above and below the indentation 51, respectively Along a top edge of the first piece 54 and a bottom edge of the second piece 55, there are a first notch 56 and a second notch 57, respectively, for fastening the cover plate 5 to a side of the accommodation space 10 by applying the first and second fasteners 52 and 53 to the positioning elements 13. In the present embodiment, the first and second fasteners 52 and 53 are screws. The indentation 51 is for receiving a latch bolt.

Also on the shaft 31 and respectively beneath the first rings 32 and above the second rings 33, there are a first clamping element 34 and a second clamping element 35 so that the electromagnetic valve 3 may be more reliably fixed to the first and second lateral sections 22 and 23, and the shaft 31 may be

2018101170 15 Aug 2018 more precisely and smoothly controlled.

The locking device 600 further includes a detection element 6, a detection switch 7, and a switch base 8. A fourth positioning element 81, which may be a hole, is configured on the switch base 8. The detection switch 7 is fixed by adhesion or fastening to the switch base 8. Through the fourth positioning element 81, the switch base 8 is fixed to a screw hole 100 in the accommodation space 10, and therefore the switch base 8 and the detection switch 7 are both inside the accommodation space 10. The detection element 6 includes a rod 61 and a block 62 is configured at least at a top end of the rod

61. The rod 61 is rotatably and vertically mounted in the accommodation space 10 so that the detection element 6 is received in the indentation 51 and the block 62 selectively presses a button 71 of the detection switch 7. The rod 61 is positioned by the first and second pieces 54 and 55 and therefore does not fall off from the accommodation space 10. In the present embodiment, when a latch bolt of a door falls into the indentation 51 and touches the detection element 6, the rod 61 is turned and the block 62 presses the button 71 of the detection switch 7, thereby detecting that the door is properly closed.

Preferably, the locking device 600 further includes a second cover plate 9 with a third opening 200 and a fourth opening 300. The first and second fasteners 52 and 53 run through the third and fourth openings 200 and 300,

2018101170 15 Aug 2018 respectively, so as to fix the second cover plate 9 to the main member 1. In the present embodiment, the second cover plate 9 with additional holes 91 and 92 allows the locking device 600 to be conveniently installed on a door frame.

As shown in FIGS. 3 to 6, the locking device 600 of the present 5 embodiment is installed on a door frame 400 for locking a door 500. A prior art latch bolt 502 is provided on the door 500. Through a handle 501 of the door 500, the door 500 is closed to the door frame 400, as shown in FIG 3. In the meantime, the latch bolt 502 is embedded into the locking device 600, as shown in FIG 4. In the present embodiment, in order to form a locked state between the door 500 and the door frame 400, conductive or control wires may be used to connect an external power source to the electromagnetic valve 3 so that the shaft 31 may linearly displace as the electromagnetic valve 3 is powered on or off. In the present embodiment, when the electromagnetic valve 3 is powered on, the top end of the shaft 31 is retracted whereas the bottom end of the shaft 31 is extended. As shown in FIGS. 5 and 6, the shaft is also moved upward (but is not limited as such). As such, the first rings 32 and the second rings 33 are moved upward and detachably pressed against the first and second extension pieces 43 and 44 to fix the lock element 41. As the latch bolt 502 is extended into the locking device 600, the lock element 41 therefore may lock the latch bolt 502, thereby achieving the locked state

2018101170 15 Aug 2018 between the door 500 and the door frame 400.

Then, when the door 500 and the door frame 400 are in the locked state, external impact (e.g., manual push) to the door 500 is evenly distributed between the first and second rings 32 and 33, and the first and second extension pieces 43 and 44. The locking device 600 is therefore more robust structurally, preventing structural deformation and displacement, and prolonging the locking device 600’s operation life.

As shown in FIGS. 7 and 8, it is also possible to have the first rings 32 and the second rings 33 moved downward and detachably pressed against the first and second extension pieces 43 and 44 to fix the lock element 41 (i.e., the shaft 31 has its top end retracted and the bottom end extended), for greater flexibility.

While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the claims of the present invention.

Claims

I CLAIM:

1. A locking device, comprising:

a main member, where the main member provides an accommodation space, a frame is extended from the main 5 member, the frame has a channel connecting the accommodation space, two positioning elements are provided to a top side and a bottom side of the accommodation space, two second positioning elements are provided to a lateral side of the positioning elements, respectively;

10 a base, where two third positioning elements are provided to a back side of the base, the base is fixed in the accommodation space through the third positioning elements, the base has a first lateral section and a second lateral section extended towards a front direction, a first opening and a second opening are respectively

15 configured on the first and second lateral sections;

an electromagnetic valve, where the electromagnetic valve has a shaft with a top end and a bottom end run through the first and second openings of the base, respectively, so that the electromagnetic valve is held between the first and second lateral

20 sections, at least a first ring surrounds the top end and at least a

2018101170 15 Aug 2018 second ring surrounds the bottom end of the shaft; a lock assembly, where the lock assembly has an elongated lock element and an axle, a first extension piece and a second extension piece are extended laterally from the lock element and

5 pin-connected to the axle, the axle’s two ends are rotatably joined with the two second positioning elements of the main member, respectively; and a cover plate, where the cover plate has an indentation, a first fastener, and a second fastener, a first piece and a second piece

10 are provided above and below the indentation, respectively, along a top edge of the first piece and a bottom edge of the second piece, there are a first notch and a second notch, respectively, for fastening the cover plate to a side of the accommodation space by applying the first and second fasteners

15 to the positioning elements;

wherein, when the electromagnetic valve is powered on, the shaft is vertically displaced, and the first and second rings are detachably pressed against the first and second extension pieces to fix the lock element.
2. The locking device according to claim 1, wherein the two

2018101170 15 Aug 2018 positioning elements are screw holes; the two second positioning elements are via holes; the third positioning elements are via holes;

and the first and second fasteners are screws.
3. The locking device according to claim 1, wherein the

5 electromagnetic valve has a first clamping element and a second clamping element respectively engaging the first and second lateral sections.
4. The locking device according to claim 1, further comprising a detection element, a detection switch, and a switch base, wherein a

10 fourth positioning element is configured on the switch base; the detection switch is fixed to the switch base; the switch base is fixed in the accommodation space through the fourth positioning element;

the switch base and the detection switch are both inside the accommodation space; the detection element has a rod and a block is

15 configured at least at a top end of the rod; the rod is rotatably and vertically mounted in the accommodation space so that the detection element is received in the indentation and the block selectively presses a button of the detection switch; and the rod is positioned by the first and second pieces.
5. The locking device according to claim 1, further comprising a

2018101170 15 Aug 2018 second cover plate with a third opening and a fourth opening, wherein the first and second fasteners run through the third and fourth openings, respectively, so as to fix the second cover plate to the main member; and a torsion spring is configured on the axle.