TW201331458A - Latch device - Google Patents

Abstract

A latch device is provided on a plate, including a base, a lock core, a stopper unit, a positioning unit, and a control unit. The lock core includes a keyhole that receives the insertion of a key and is arranged in an outer surface of the base and a mandrel that is located on an inner surface of the base and is rotatable with respect to the base. The stopper unit includes a stopper located on the inner surface of the base. The control unit includes a control panel fixedly mounted on the mandrel of the lock core and a hook rod rotatable relative to the control panel. The control panel switches, along with the mandrel, between a locked position and an unlocked position. To unlock the plate, it is necessary to insert the key into the keyhole of the lock core and rotate the mandrel, so that the control unit is moved to the unlocked position, and also to rotate the stopper of the stopper unit, thereby providing an additional anti-theft effect.

Description

Latch lock device

The invention relates to a latching device, in particular to a multi-pass anti-theft latching device.

Referring to FIG. 1 , a horn lock 12 that is commonly used in the present invention is mounted on a door panel 11 , and includes two handles 121 respectively pivoted on opposite sides of the door panel 11 , a lock cylinder 122 extending through the handles 121 , and a The latch 123 connected to the handle 121 unlocks the lock core 122 with a key, and the handles 121 can control the expansion and contraction of the latch 123 to perform the operation of opening the door, and after the lock core 122 is locked, The handles 121 are fixed so that the latch 123 cannot be controlled to close the door.

However, when someone deliberately destroys the lock core 122, the handles 121 can be easily rotated to open the door panel 11, so that the horn lock 12 loses the protective effect, so the relevant operators are all committed to designing the anti-theft effect. Good lock.

Accordingly, it is an object of the present invention to provide a latching device that enhances theft prevention effect.

Therefore, the latching device of the present invention is mounted on a plate body, and includes a base, a lock cylinder, a stop unit, a positioning unit, and a control unit.

The base includes an outer side and an inner side opposite the outer side. The lock cylinder includes a keyhole for inserting a key and disposed on an outer side of the base, and a core rod disposed on an inner side of the base and rotatable relative to the base.

The stop unit includes a shaft pivoted on the base, a latching member fixed to the shaft and located on an inner side of the base, and a fixed on the shaft and located on the base The inner side of the stop.

The positioning unit includes a positioning rod pivoted on an inner side of the base, and the positioning rod is engageable with a locking member of the stopping unit.

The control unit includes a control panel fixed to the core of the lock cylinder, and a hook pivotable relative to the control panel, the control panel being changed between the locked position and an unlocked position.

The utility model has the advantages that the key is inserted into the lock hole of the lock cylinder, and the core rod is rotated, so that after the control unit is moved to the unlocked position, the stop member of the stop unit needs to be rotated to enable the opening of the lock unit. The board provides an extra layer of protection and anti-theft effects.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the invention.

Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 2 and FIG. 3, a first preferred embodiment of the latching device of the present invention is mounted on a board body 90, and includes a base 2, a lock core 3, a stop unit 4, and a positioning unit 5. a control unit 6, and a protective cover 7 covering the base 2.

The base 2 includes an outer side 21 and an inner side 22 opposite the outer side 21. The outer side surface 21 of the base 2 has an insertion hole 211 in an asymmetrical shape. The lock cylinder 3 includes a lock hole 31 for inserting a key 91 and being disposed on the outer side surface 21 of the base 2, and a core rod disposed on the inner side surface 22 of the base 2 and rotatable relative to the base 2 32.

Referring to FIG. 3 and FIG. 4 , the stop unit 4 includes a shaft 41 pivoted on the base 2 , and a latching member 42 fixed on the shaft 41 and located on the inner side 22 of the base 2 . And a stopper 43 fixed on the shaft 41 and located on the inner side surface 22 of the base 2. The stopper 43 of the stop unit 4 has a turntable 431 fixed to the shaft 41, a long cylinder 432 extending outward from the turntable 431, and two joints extending outward from the turntable 431, respectively. The lever 433 has a resilient portion 411 disposed on the outer side 21 of the base 2. The resilient portion 411 is disposed in the receptacle 211, and the latch 42 has an opening 421. In the present embodiment, the connecting rods 433 are guide grooves (not shown) that are disposed outside the plate body 90, and are commonly referred to as locking means of the heaven and earth bolts. The size of 90 may also eliminate the need for such links 433.

The positioning unit 5 includes a positioning rod 51 pivotally disposed on the inner side surface 22 of the base 2, and an elastic member 52 connecting the base 2 and the positioning rod 51 to the two ends. The positioning rod 51 has a The protrusion 511 of the locking member 42 of the stopper unit 4 is engaged with the protrusion 511.

The control unit 6 includes a control panel 61 fixed on the core rod 32 of the lock cylinder 3, a hook 62 pivotable relative to the control panel 61, and a connecting rod 62 and a control panel respectively connected to the two ends. The elastic member 63 of 61. The control panel 61 is changed with the core rod 32 between a locked position as shown in FIG. 4 and an unlocked position as shown in FIG.

Referring to FIG. 3, in the embodiment, the protective cover 7 is pivotally disposed on the plate body 90, and the lock hole 31 (see FIG. 2) of the lock core 3 and the spring pressure of the stop unit 4 are detachably closed. Part 411.

Referring to FIGS. 3 and 4, in the locked position, the hook 62 of the control unit 6 is subjected to the elastic pulling force of the elastic member 63, and the positioning rod 51 of the positioning unit 5 is held in the buckle with the stop unit 4. The state of the member 42 is engaged, so the turntable 431 of the stopper 43 cannot be rotated, and the long column 432 and the links 433 are protruded from the plate 90, so the plate 90 cannot be Being pulled and opened.

To open the board 90, the key 91 is first inserted into the lock cylinder 3, and the core rod 32 is rotated to rotate the control panel 61 counterclockwise from FIG. 4 to the position shown in FIG. 5, at which time the hook 62 The positioning rod 51 is no longer supported, and the positioning rod 51 is pulled by the elastic member 52 so that the protrusion 511 of the positioning rod 51 does not engage with the opening 421 of the locking member 42. a plug 92 is inserted into the insertion hole 211 of the outer side surface 21 of the base 2, and combined with the biasing portion 411 of the stop unit 4, the pressing portion 411 is pressed and the shaft 41 of the stop unit 4 is rotated. The turntable 431 of the stop unit 4 is rotated accordingly, so that the long cylinder 432 is rotated counterclockwise from the position shown in FIG. 4 to the position shown in FIG. 5, and the links 433 are respectively facing the turntable. The direction of the center of the 431 is moved, so that the long cylinder 432 and the links 433 are both constricted to the projection range of the plate 90, so that the plate 90 can be pulled and opened.

It should be noted that the appearance of the plug 92 is matched with the geometric shape of the jack 211, and the shape of the jack 211 is asymmetrical. Therefore, the plug 92 cannot be detached from the jack 211 after being rotated, so In the state where the unlocking position can open the plate body 90, neither the key 91 nor the plug 92 can be separated from the latching device. In addition, a plurality of spacers 93 are provided between the turntable 431 and the latching member 42 in order to match the thickness of the plate body 90. Of course, the spacer 93 may not be used depending on the thickness of the plate body 90.

Referring to FIG. 6 , a second preferred embodiment of the latching device of the present invention is substantially the same as the first preferred embodiment. The difference is that the latching device further includes an inner side surface 22 of the base 2 . The electronic control unit 8 includes a transmission rod 81 coupled to the positioning rod 51 of the positioning unit 5, a driving source 82 connected to the transmission rod 81, and an electrical connection with the driving source 82. The micro switch 83 is in contact with the transmission rod 81, an extension rod 84 extending from the transmission rod 81 and having a slot 841, and an elastic member 85 connecting the extension rod 84 and the base 2 at both ends. The base 2 further includes a positioning pin 23 that engages with the slot 841 of the extension rod 84, and the control panel 61 of the control unit 6 has a boss portion 611 for pushing against the extension rod 84. It should be noted that, for convenience of explanation, the stoppers 43 (see FIG. 4) of the stopper unit 4 are omitted in FIG. 6 and FIGS. 7 and 8 below.

Referring to FIG. 6, the control panel 61 of the control unit 6 is in the locked position, and when it is to be unlocked at this time, as shown in FIG. 7, the driving source 82 can be first contracted by a device such as a remote controller, and thereby the transmission is pulled. The lever 81 presses the transmission rod 81 to press the positioning rod 51 to disengage the protrusion 511 of the positioning rod 51 from the locking member 42. When the positioning rod 51 is pressed, the transmission rod 81 is offset from the micro switch 83. The sensing region causes the driving source 82 to be powered off and no longer continues to contract, and the elastic member 63 is also stretched by the hook 62 to accumulate a force of elastic contraction, and the extension rod 84 is pulled by the elastic member 85. The card slot 841 is engaged with the positioning pin 23 (blocked by the hook 62 in FIG. 7 and not shown), and the transmission rod 81 of the electronic control unit 8 is positioned. Since the projection 511 of the positioning rod 51 has been disengaged from the latching member 42, the stopper unit 4 can be rotated by the aforementioned plug 92 (see FIG. 3) to achieve the unlocking action.

When the electronic control unit 8 is to be reset and locked, the locking member 42 is first rotated back to the position shown in FIG. 8, and then the key 91 is inserted into the lock cylinder 3 to rotate the core rod 32 (see FIG. 3). The control panel 61 of the control unit 6 is moved to the position shown in FIG. 8 such that the boss portion 611 supports the slot 841 of the extension rod 84 away from the positioning pin 23, and the elastic member of the positioning unit 5 52 will push the positioning rod 51 to reset, and interlock the transmission rod 81 and the driving source 82 to return to the position of FIG. 6 to complete the locking operation.

Therefore, the latching device of the present invention must simultaneously use the key 91 and the plug 92 when unlocking, and the plug 90 can be opened only after the lock cylinder 3 is broken, so that the anti-theft effect is good. The protective cover 7 covers the locking hole 31 of the lock cylinder 3 and the elastic portion 411 of the stop unit 4, and has the advantages of being more waterproof and dustproof, and the appearance of the plate 90 is different. The stop member 43 can only have the long post 432, or the long post 432 can be fitted with the links 433 to provide a variety of implementation options.

In summary, the latching device of the present invention has the locking hole 31 and the insertion hole 211. Therefore, the key 91 and the plug 92 need to cooperate to perform the unlocking operation, and provide an additional layer of protection and anti-theft effect, so that the present invention can be achieved. The purpose.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

2. . . Pedestal

twenty one. . . Outer side

211. . . Jack

twenty two. . . Inner side

twenty three. . . Locating pin

3. . . Lock cylinder

31. . . keyhole

32. . . Core rod

4. . . Stop unit

41. . . Shaft

411. . . Elastic part

42. . . Fastener

421. . . Opening

43. . . Stop

431. . . Turntable

432. . . Long cylinder

433. . . link

5. . . Positioning unit

51. . . Positioning rod

511. . . Bump

52. . . Elastic part

6. . . control unit

61. . . control panel

611. . . Boss

62. . . Tick

63. . . Elastic part

7. . . protection cap

8. . . Electronic control unit

81. . . Transmission rod

82. . . Drive source

83. . . Micro Switch

84. . . Extension rod

841. . . Card slot

85. . . Elastic part

90. . . Plate body

91. . . key

92. . . Plug

93. . . Gasket

Figure 1 is a perspective view showing a conventional horn lock;

Figure 2 is a front elevational view showing the first preferred embodiment of the latching device of the present invention;

Figure 3 is a side elevational view showing the detail of the first preferred embodiment combined with a plate;

Figure 4 is a rear elevational view showing the state of a control unit of the first preferred embodiment in a locked position;

Figure 5 is a rear elevational view showing the control unit of the first preferred embodiment in an unlocked position;

Figure 6 is a rear elevational view showing a second preferred embodiment of the latching device of the present invention, in which a stop member of the stop unit is omitted;

Figure 7 is a rear elevational view showing the control unit of the second preferred embodiment in the unlocked position, in which the stop of the stop unit is omitted;

Figure 8 is a rear elevational view showing the operation of the control unit of the second preferred embodiment in a reset mode in which the stop of the stop unit is omitted.

2. . . Pedestal

twenty two. . . Inner side

32. . . Core rod

4. . . Stop unit

41. . . Shaft

42. . . Fastener

43. . . Stop

431. . . Turntable

432. . . Long cylinder

433. . . link

5. . . Positioning unit

51. . . Positioning rod

511. . . Bump

52. . . Elastic part

6. . . control unit

61. . . control panel

62. . . Tick

63. . . Elastic part

Claims (8)

A latching device is mounted on a plate body, comprising: a base comprising an outer side surface and an inner side surface opposite to the outer side surface; a lock core comprising a key for insertion and being disposed on the base a locking hole on the outer side surface, and a core rod disposed on the inner side surface of the base and rotatable relative to the base; a stop unit includes a shaft pivoted on the base, and a shaft fixed to the shaft a latching member on the inner side of the base, and a stop member fixed on the shaft and located on an inner side of the base; a positioning unit including a pivoting base a positioning rod on the side, the positioning rod can be engaged with the locking member of the stopping unit; and a control unit comprising a control panel fixed on the core rod of the locking core, and a control panel A pivoting hook that changes between the locked position and an unlocked position with the core. The latching device of claim 1, wherein the positioning unit further comprises an elastic member that connects the base and the positioning rod respectively. The latching device of claim 1, wherein the control unit further comprises an elastic member that connects the hook and the control disc at two ends. The latching device of claim 1, wherein the stopper of the stop unit has a turntable fixed to the shaft, and a long cylinder extending outward from the turntable, and The shaft has a resilient portion disposed on an outer side of the base. The latching device of claim 4, wherein the outer mask of the base has a receptacle that receives the ballistic portion of the stop unit and has an asymmetrical shape. The latching device of claim 5, wherein the stop of the stop unit further has two links extending outwardly from the turntable. The latching device of claim 5, further comprising a protective cover that detachably covers the outer side of the base, the protective cover closing the locking hole of the lock cylinder and the biasing portion of the stop unit. The latching device of claim 1, further comprising an electronic control unit disposed on an inner side of the base, wherein the electronic control unit includes a transmission rod that is coupled to the positioning rod of the positioning unit, a driving source connected to the transmission rod, a micro switch electrically connected to the driving source and in contact with the transmission rod, an extension rod extending from the transmission rod and having a card slot, and a connecting end connecting the extension The rod and the elastic member of the base further comprise a positioning pin engaged with the slot of the extension rod, and the control panel of the control unit has a boss portion for supporting the extension rod.