TWI607139B - Improvement of cabinet door lock with electric control and manual unlocking - Google Patents

Description

Improvement of cabinet door lock with electronic control and manual unlocking function

The invention provides a cabinet door lock, in particular to an improvement of a cabinet door lock with an electric control and a manual unlocking function, and the buckle is more firm and effective when the buckle is applied.

Press, the lock door lock structure with electronic control and manual unlock function is known, as shown in the top view of Figure 1. A first locking hook 11 is disposed at the end of the cabinet 10, and a second locking hook 13 is disposed at the end of the door panel 12. When the sliding door panel 12 and the cabinet 10 are closed, the first and second locking hooks 11 and 13 follow the The configured push-out surfaces are hooked to each other to close the door panel 12. The first locking hook 11 is connected to an electronic device, and after the electronic device is energized, the first locking hook 11 can be driven to be horizontally offset to leave the hook of the second locking hook 13 (see FIG. 2). The second locking hook 13 is kept in a normal state. If the power is off, the user can hold a key into a lock body fixed on the door panel 12, and rotate the key to drive the second locking hook 13 horizontally. Move to disengage from the hook of the first lock hook 11.

The above-mentioned conventional cabinet door lock structure has the following defects in application, and is often criticized by the cabinet industry.

1. The first and second locking hooks 11 and 13 are oppositely facing each other and horizontally hooked, and the hooking surfaces 14 of the two are only in contact with each other, so that the lock between the cabinet 10 and the door panel 12 It is not true that the hooking surface 14 is easily detached when the door panel 12 is vigorously shaken left and right (especially when the door panel 12 is insufficiently rigid).

2. When the hard sheet is inserted from the door slit between the door panel 12 and the cabinet 10, it is easy to break and push the second lock hook 13 horizontally, and the second lock hook 13 and the first lock hook are 11 is unhooked, causing the door panel 12 to be broken by random destruction.

The present inventors have in view of the conventional cabinet door lock structure having the electronic control and manual unlocking functions shown in Figs. 1 and 2, which have the above-mentioned missing defects in application, and are improved, and the present invention is produced.

Accordingly, the main object of the present invention is to provide a more secure and reliable cabinet door lock with an electronically controlled and manually unlocked function when a buckle is provided.

The main feature of the present invention is that a locking device is fixed on the inner surface of the door opening end of the door panel, and the locking device comprises a fixing plate, a sliding plate and a gusset plate. The fixing plate is fixed to the inner surface of the door panel; the sliding plate is engaged with the fixing plate, and can be axially displaced on the fixing plate when being driven; the buckle plate has a button hole in the middle, and one end and the sliding plate Fixed, the end of the other end has a push-out surface, the buckle hole passes through the buckle hole when the electronically controlled telescopic tongue of an electronic device installed in the cabinet extends The strength of the buckle to fasten the buckle is perpendicular to the tension of the door panel being opened. In addition, the skateboard can be driven by a key into a lock to slide on the fixed plate, so that the buckle hole is separated from the buckle for manual unlocking. With these settings, the lock can be stronger and more secure.

The following technical examples are given to illustrate the following objects and structures in order to achieve the above objects and effects.

Referring to FIG. 3 to FIG. 7 , the cabinet door lock with the electric control and manual unlocking functions of the embodiment of the present invention comprises a locking device 20 , an electronic device 30 for electronic control and a lock 40 for manual unlocking. . The locking device 20 is fixed to the inner surface 51 of the door opening end of the door panel 50. The electronic device 30 is fixed inside a cabinet 60 and corresponds to the locking device 20. The lock 40 is fixed on the door panel 50 and adjacent to the locking device 20. The locking hole 41 has a locking hole 41 end facing the door, and the locking tongue 42 end is facing the door. The locking tongue 42 can be a key. Drive and slide. The main improvements of the invention are:

The locking device 20 includes a fixing plate 21, a sliding plate 22 and a gusset plate 23. The left and right ends of the fixing plate 21 (see FIGS. 4 and 5) are bent toward the end of the door panel 50, and the upper and lower ends are fixed to the inner surface 51 of the door panel 50 (fixed by rivets). The intermediate wall surface 210 of the fixing plate 21 has an insertion opening 211 extending in the axial direction. The bottom surface of the insertion opening 211 has a laterally disposed strip 212, and the left and right inner walls of the insertion opening 211 form a second The guide rails 213, the two sides of the top ends of the two guide rails 213 and the two sides below the bar 212 have a laterally disposed notch 214, and the notches 214 are in communication with the insertion port 211.

The sliding plate 22 is disposed at the inner end of the fixing plate 21 toward the inner side of the cabinet 60. The left and right ends of the sliding plate 22 are bent toward the fixed plate 21 end by a side wing 220, and the top end and the bottom end respectively end to the fixing plate 21 end. An upper plate 221 and a lower plate 222 are extended, and the upper and lower sides of the extending end of the upper plate 221 and the lower plate 222 respectively protrude outwardly with a wing 223, and the wing 223 and the side wing 220 are viewed from above. In view, a clamping gap w (Fig. 7) is formed, the clamping gap w is equivalent to the thickness of the intermediate wall surface 210 of the fixing plate 21, and the width of the upper and lower plates 221, 222 at the position of the flap 223 is It is larger than the inner width of the insertion opening 211. The upper plate 221, the lower plate 222 and the four ribs 223 are inserted through the insertion opening 211 of the fixing plate 21 and the corresponding notch 214. After being inserted, the sliding plate 22 is moved downward, and the axial end edge of the side wing 220 The front surface of the guide rail 213 is attached to the front surface of the guide rail 213. As shown in FIG. 7, the slide plate 22 can be axially displaced on the fixed plate 21 unless the clip is pushed. The wings 223 are aligned with the notch 214, otherwise the slide 22 will not disengage from the fixed plate 21. Moreover, the bar 212 is disposed to serve as a stop for the slider 22 to be pushed up. When the lower plate 222 hits the bar 212, the slider can no longer be displaced longitudinally.

The gusset 23 is located at an inner end of the sliding plate 22 facing the cabinet 60. The gusset 23 has a fastening hole 230 in the middle, and one end is fixedly connected to the sliding plate 22 (for example, a screw), and the bottom end of the squeezing plate 22 (ie, toward the inner end of the cabinet 60) has a pushing surface 231 extending upward. When the electronically controlled telescopic latch 31 extends into the hole 230, the latch 31 extends longitudinally from the bottom to the top through the latching hole 230, and the latch 31 catches the force direction of the latching plate 23. y is perpendicular to the pulling direction x in which the door panel 50 is opened (Fig. 9). In addition, the bottom end of the upper plate 221 of the slide plate 22 is corresponding to the top end of the lock tongue 42 which is driven by the lock 40 when the lock is unlocked, and the upper and lower axial directions are displaced, and the key is inserted into the lock hole 41 to unlock and rotate. The locking tongue 42 will drive the upper plate 221 (slider 22) and the gusset 23 to move upward along the guide rail 213, so that the fastening hole 230 is separated from the tongue 31. Therefore, when the electronic device 30 does not operate when the power is off, the lock can be manually unlocked.

When the above components are sequentially combined, as shown in FIG. The door panel 50 is closed, and the door panel 50 is displaced by the latching plate 23. When the latching plate 23 passes over the latching tongue 31, the pushing surface 231 is pressed against the latching tongue 31, and the latching tongue 31 is pressed down. (The structure of the tongue 31 is pushed up via a spring top) as shown in FIG. When the buckle hole 230 of the gusset 23 is aligned with the buckle 31, the buckle 31 automatically rebounds into the buckle hole 230 longitudinally, as shown in FIG. Since the force direction y of the buckle 31 for fastening the gusset 23 is different from the pulling direction x of the door panel 50 being opened, the angle between x and y is perpendicular to the angle of 90 degrees, so that the buckle is firmly secured.

When the electronic device 30 is unlocked and the unlocking command is executed after the electronic device 30 is energized, the button 31 is driven downward to be disengaged from the buttonhole 230. As shown in FIG. 10, the door panel 50 can be opened.

When the power is turned off, the electronic device 30 cannot be operated. When the door panel 50 is to be opened, the key is inserted into the locking hole 41 to unlock and rotate. The locking tongue 42 drives the upper plate 221 (slider 22) and the gusset 23 along the guide rail. The 213 is displaced upward to move the buttonhole 230 away from the tongue 31, as shown in Fig. 11, at which time the door panel 50 can be opened.

Looking at the above, the present invention is not only novel and progressive, but also proposes invention patents according to law, and invites for review and approval of patents.

Conventional part
10‧‧‧Cabinet
11‧‧‧First lock hook
12‧‧‧ Door panel
13‧‧‧Second lock hook
14‧‧‧Hooking part of the invention
20‧‧‧Lock device
30‧‧‧Electronic devices
40‧‧‧Locks
50‧‧‧ Door panel
51‧‧‧ inside
60‧‧‧ cabinets
41‧‧‧Keyhole
42‧‧‧Lock tongue
21‧‧‧ fixed plate
22‧‧‧ Skateboarding
23‧‧‧
210‧‧‧Intermediate wall
211‧‧‧ embedded port
212‧‧ ‧ s
213‧‧‧rails
214‧‧‧ gap
220‧‧‧ wings
221‧‧‧Upper board
222‧‧‧ Lower board
223‧‧‧Clap
w‧‧‧Clamping gap
230‧‧‧ buttonhole
230‧‧‧ pushed face
31‧‧‧ 扣 tongue

1 is a top cross-sectional view (closed state) of a partial structure of a conventional cabinet door lock. 2 is a top cross-sectional view (unlocked state) of a partial structure of a conventional cabinet door lock. 3 is an external view of a cabinet door panel according to an embodiment of the present invention. 4 is an exploded view of the locking device, the electronic device, and the lock according to the embodiment of the present invention. Figure 5 is another angular exploded view of Figure 4. FIG. 6 is a front view showing the state of the buckle device and the shackle of the electronic device when the door panel is to be closed according to the embodiment of the present invention. Fig. 7 is a sectional view taken along line 7-7 of Fig. 6. FIG. 8 is a view showing a state in which the squeezing plate is pressed down when the door panel is closed according to the embodiment of the present invention. FIG. 9 is a view showing the state of the shackle of the locking device and the electronic device when the door panel is closed according to the embodiment of the present invention. FIG. 10 is a diagram showing the state of unlocking in an electronically controlled manner according to an embodiment of the present invention. Figure 11 is a diagram showing the state of the manual unlocking in the embodiment of the present invention.

20‧‧‧Lock device

30‧‧‧Electronic devices

40‧‧‧Locks

50‧‧‧ Door panel

41‧‧‧Keyhole

42‧‧‧Lock tongue

21‧‧‧ fixed board

22‧‧‧ Skateboarding

23‧‧‧

211‧‧‧ embedded port

212‧‧ ‧ s

213‧‧‧rails

214‧‧‧ gap

220‧‧‧Flanking

221‧‧‧Upper board

222‧‧‧ Lower board

223‧‧‧Clap

230‧‧‧ buttonhole

231‧‧‧ pushed face

31‧‧‧ 扣 tongue

Claims (5)

The invention relates to an improved door lock with electric control and manual unlocking function, comprising a locking device, an electronic device for electronic control and a lock for manual unlocking; wherein the locking device is fixed in the opening end of a door panel The electronic device is fixed inside the cabinet and corresponds to the locking device; the locking device is fixed on the door panel and adjacent to the locking device, the locking device has a locking hole end facing the door and having a lock The tongue end is facing the inside of the door; the main improvement is: the locking device comprises a fixing plate, a sliding plate and a gusset plate; wherein the fixing plate is fixed to the inner surface of the opening end of the door plate; the sliding plate is The fixing plate is engaged, and when a key protrudes into the lock to drive a longitudinal displacement of the locking tongue, the sliding plate is driven by the locking tongue to slide longitudinally on the fixing plate; the fastening plate has a fastening hole at the middle, and the end When the sliding plate is closed, a fastening tongue of the electronic device can penetrate into the fastening hole, and a direction in which the fastening tongue penetrates into the fastening hole is different from a pulling direction in which the door panel is opened. By. The cabinet door lock with the electronic control and the manual unlocking function according to claim 1 is improved, wherein the direction in which the tongue penetrates into the buckle hole is perpendicular to the direction in which the door panel is opened. The cabinet door lock with the electric control and the manual unlocking function is improved according to claim 1 or 2, wherein an intermediate wall surface of the fixing plate has an insertion hole extending axially, and the axial left and right sides of the insertion opening The inner wall is formed as two guide rails, and the top end and the bottom end of the two rails each have a laterally disposed notch, and the notches are in communication with the insertion opening; the left and right ends of the sliding plate are bent toward the fixing plate end Folding a side wing, the top end and the bottom end of the sliding plate respectively extend to the fixing plate end to extend an upper plate and a lower plate, and the upper plate and the extending end of the lower plate respectively protrude outwardly with a clamping wing. Between the wing and the side wing, a clamping gap is formed, the clamping gap is equal to the thickness of the intermediate wall, and the width of all the two wings of the upper and lower plates is larger than the inner width of the insertion opening; The upper plate, the lower plate and the four wings are embedded through the insertion opening and the corresponding notch, and the sliding plate is moved downward after the insertion, and the longitudinal end edge of the side wing is adjacent to the front surface of the guide rail. The flap is attached to the back of the rail, and the slider is pushed In the fixing plate for longitudinal displacement upward. The cabinet door lock with the electronic control and the manual unlocking function described in claim 3 is improved, wherein the inner lower position of the insertion opening has a laterally disposed one bar as a stop for the upper limit of the sliding plate. The cabinet door lock with the electric control and the manual unlocking function is improved according to claim 4, wherein the bottom surface of the gusset facing the inner end of the cabinet has a push-out surface extending upward.