CN214652901U - Elevator door lock with low noise - Google Patents

Abstract

The utility model relates to an elevator lock that noise is little, including casing and lock door gear, lock door gear is located in the casing, the casing is equipped with the cap, the casing is equipped with opens the obturator, lock door gear includes driving motor, driven strip, driving medium and bolt, the driving medium includes transfer line and blind pin pole, the driving medium is in the transfer line with the handing-over of blind pin pole is in the casing is articulated, driving motor's actuating lever department is equipped with drive gear, driven strip be equipped with the rack of drive gear adaptation, driven strip and casing sliding connection, driven strip is equipped with the trompil, the transfer line is equipped with the pull block, the bolt with open and close the hole adaptation, the bolt with casing track connection, the blind pin pole is equipped with the drive mouth, the bolt is equipped with the drive block. The utility model provides an elevator lock that the noise that sends when opening and close is little.

Description

Elevator door lock with low noise

Technical Field

The utility model relates to a lock technical field, specific elevator lock that noise is little that says so.

Background

The elevator has extremely important effect in modern society's life, give people and brought very big facility, consequently, the safe use of elevator seems very important, traditional elevator lock is usually operated by actuating mechanism when opening, draw the bolt into among the elevator lock through drive mechanism, can collide when the bolt is drawn back, send the huge noise of metal collision, then be actuating mechanism outage when closing, the bolt directly pops out under the effect of piece that resets, adopt this kind of structure bolt just can the sound production collision when being popped out by the piece that resets, can send the huge noise of metal collision when the bolt pops out equally.

SUMMERY OF THE UTILITY MODEL

To sum up, for overcoming prior art's not enough, the utility model provides a little elevator lock of noise that sends when opening and close.

In order to achieve the above purpose, the utility model provides a following technical scheme: a low-noise elevator door lock comprises a shell and a door locking device, wherein the door locking device is positioned in the shell, the shell is provided with a shell cover, the shell is provided with an opening hole and a closing hole, the door locking device comprises a driving motor, a driven bar, a transmission piece and a bolt, the transmission part comprises a transmission rod and a pull pin rod, the transmission part is hinged with the shell at the joint of the transmission rod and the pull pin rod, a driving gear is arranged at the driving rod of the driving motor, a rack matched with the driving gear is arranged on the driven strip, the driven bar is connected with the shell in a sliding way, the driven bar is provided with a pull hole, the transmission rod is provided with a pull block, the bolt is matched with the opening and closing hole, the bolt is connected with the shell track, the pull pin rod is provided with a driving port, the bolt is provided with a driving block, and when the transmission piece rotates, the pull block and the driving block respectively move in the pull hole and the driving hole.

The elevator door is arranged in such a way that when the elevator door needs to be opened, the electronic signal controls the driving motor to rotate forwards, the driving motor drives the driving gear on the driving rod to rotate when rotating, the driving gear is matched with the rack matched with the driving gear, the driven strip is driven to slide in the shell when rotating, the pull block in the pull hole is driven to move together when the driven strip slides, the driving part is driven to rotate when the pull block on the transmission rod is driven due to the hinged connection of the driving part and the shell, the pull pin rod is also driven to rotate together, the driving block in the driving port is driven to move together when the pull pin rod rotates, the bolt is driven to retract into the opening and closing hole, so that the elevator door is opened, the bolt retracts at a constant speed along with the rotation of the driving motor when being opened, noise cannot be generated, the electronic signal controls the driving motor to rotate backwards when being closed, the driving gear is matched with the rack to drive the driven strip to slide reversely in the shell, in a similar way, the bolt just can be seen off under sliding and open the obturator, and the bolt is the same along with driving motor's rotation and at the uniform velocity pop out when closing, also can not send the noise, and can also set up emergent electric capacity among driving motor's the control circuit, by emergent electric capacity power supply when elevator lock outage, fixed driving motor's actuating lever avoids drive gear rotatory, prevents the bolt autonomous movement out of control, sends the noise.

Further, the casing is located the articulated position of driving medium is equipped with emergent mouthful, the driving medium is located the position of emergent mouthful is equipped with the emergent locking piece rather than the adaptation, the trompil is the bar hole, the bolt is equipped with the piece that resets, it is right to reset the piece the orientation is applyed to the bolt open the effort of hole.

The arrangement is that when the driving motor is powered off, the driving gear can not rotate, the position of the driven strip is fixed, then the driving block can rotate by rotating the emergency locking block positioned at the emergency opening, the pulling block can move in the strip-shaped pulling hole and can not be clamped, the driving hole can be driven to pull the bolt into the opening hole, thereby opening the elevator door, when the driving motor is not powered off and is closed, the driven strip slides in the direction, at the moment, the reset piece can push the bolt, the bolt drives the pulling pin rod, the pulling pin rod drives the pulling block to always push against the top of the pulling hole, the pulling block can not slide in the pulling hole, although the reset piece is arranged, the reset piece can reset the bolt a little bit under the driving of the driving motor, the collision can not occur, the noise is generated, the driving motor can be fixed by the control circuit after the bolt is retracted, the position of the bolt is fixed and can not be popped out by the reset piece, and can also set up emergent electric capacity among driving motor's the control circuit, by emergent electric capacity power supply when elevator lock outage, fixed driving motor's actuating lever avoids drive gear rotatory, prevents that the bolt from being popped out by the piece that resets, the noise of sending.

Furthermore, one side of the driving opening, which faces away from the opening and closing hole, penetrates through the side wall of the pull pin rod.

So set up, in also can pushing back the bolt and opening the obturator between the condition that driving motor does not operate, the drive block can be followed and opened and close roll-off in the hole, can directly push away the door after the bolt sets up the inclined plane and impress the bolt and open the obturator, and the bolt just can be in the drive of piece that resets after impressing again the roll-off and open the obturator.

Further, the casing be equipped with the activity hole of bolt adaptation, the piece that resets is the spring, the piece that resets is located in the activity hole.

So set up, will exert the effort to the plug pin in the movable hole as the spring that resets, the movable hole can also play the effect of direction to the plug pin, and the piece that resets can not pop out simple structure.

Furthermore, the door locking device also comprises a switch mechanism, wherein the switch mechanism comprises a movable contact piece, an opening static contact piece and a closing static contact piece, the movable contact piece is contacted with the opening static contact piece when the door locking device is in an opening state, and the movable contact piece is contacted with the closing static contact piece when the door locking device is in a closing state.

So set up, movable contact and open the static contact when locking door gear open mode, on-off mechanism just can show the signal of opening, lets the user understand to be the open mode this moment, and movable contact and the contact of closing the static contact when locking door gear closed mode, and on-off mechanism just can show the signal of closing, lets the user understand to be the closed mode this moment, opens the static contact and can directly adorn in the casing with closing the static contact, also can adorn on a contact frame.

Furthermore, the movable contact piece is linked with the bolt, the moving direction of the movable contact piece is the same as that of the bolt, and the movable contact piece, the opening static contact piece and the closing static contact piece are positioned on the same straight line.

So set up, the movable contact just can slide along with the removal of bolt, just can with be located the contact of opening the static contact or closing the static contact on the collinear after sliding, the moving means is for sliding rather than the swing, and is more steady, and the distance of opening between the static contact and closing the static contact is farther, changes and controls, and is safer, and the movable contact can rely on linking bridge to each other with the bolt.

Furthermore, two movable contact pieces are arranged, and the two movable contact pieces face the opening static contact piece and the closing static contact piece respectively.

So set up, open that the distance between static contact and the close static contact can set up farther, change and control, it is safer.

Further, driven strip both sides are equipped with the sliding block, the casing be equipped with the slip track of driven strip adaptation.

So set up, from the strip alright rely on the sliding block of both sides to slide in the slip track on the casing, avoided the removal of other directions, from the strip slip more steady.

Furthermore, a positioning hole is formed in the shell cover at the hinged position of the transmission piece, and a positioning shaft matched with the transmission piece is arranged at the position of the transmission piece at the positioning hole.

So set up, the locating shaft just can insert during the locating hole after cap and casing are connected, and the rotation of driving medium is more stable.

Furthermore, the casing is located the position of drive block is equipped with notch opening hole, the direction in notch opening hole with be on a parallel with the bolt, the drive block is in the activity in notch opening hole.

So set up, straight notch shape hole also can play the positioning action to the plug pin when driving medium damages or failure.

Drawings

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

Fig. 2 is a schematic structural diagram 2 of an embodiment of the present invention.

Fig. 3 is a schematic structural view of a coverless structure according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a door locking device according to an embodiment of the present invention.

Fig. 5 is a rear view of the door locking device according to the embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a housing according to an embodiment of the present invention.

The reference numbers in the figures mean: 1. the automatic door locking device comprises a shell, a shell cover 11, a shell cover 111, a positioning hole 12, an opening and closing hole 13, an emergency opening, a movable hole 14, a sliding rail 15, a straight notch shaped hole 16, a door locking device 2, a driving motor 21, a driving gear 211, a driven bar 22, a driven bar 221, a rack bar 222, a pulling hole 223, a sliding block 23, a transmission piece 231, a transmission rod 2311, a pulling block 2311, a pulling pin rod 232, a 2321, a driving opening 233, an emergency locking block 234, a positioning shaft 24, a bolt 241, a driving block 242, a reset piece 25, a switching mechanism 251, a movable contact piece 252, an opening static contact piece 253 and a closing static contact piece.

Detailed Description

The present embodiment is only an explanation of the present embodiment, and it is not a limitation of the present embodiment, and a person skilled in the art can make modifications without inventive contribution to the present embodiment as needed after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present embodiment.

Referring to the attached drawings, the utility model provides the following technical scheme: an elevator door lock with low noise comprises a shell 1 and a door locking device 2, wherein the door locking device 2 is positioned in the shell 1, the shell 1 is provided with a shell cover 11, the shell 1 is provided with an opening and closing hole 12, the door locking device 2 comprises a driving motor 21, a driven bar 22, a transmission piece 23 and a bolt 24, the transmission piece 23 comprises a driving rod 231 and a pull pin rod 232, the transmission piece 23 is hinged to the shell 1 at the joint of the driving rod 231 and the pull pin rod 232, the driving rod of the driving motor 21 is provided with a driving gear 211, the driven bar 22 is provided with a rack 221 matched with the driving gear 211, the driven bar 22 is connected with the shell 1 in a sliding manner, the driven bar 22 is provided with a pull hole 222, the driving rod 231 is provided with a pull block 2311, the bolt 24 is matched with the opening and closing hole 12, the bolt 24 is in orbital connection with the shell 1, the pull pin rod 232 is provided with a driving port 2321, the latch 24 is provided with a driving block 241, and the pulling block 2311 and the driving block 241 move in the pulling hole 222 and the driving opening 2321 respectively when the transmission piece 23 rotates.

With such arrangement, when the elevator door needs to be opened, the electronic signal controls the driving motor 21 to rotate forwardly, the driving motor 21 drives the driving gear 211 on the driving rod to rotate forwardly while rotating, the driving gear 211 is matched with the rack 221 matched with the driving gear 211, the driven bar 22 is driven to slide in the shell 1 while rotating, the pull block 2311 in the pull hole 222 is driven to move together when the driven bar 22 slides, the driving member 23 is driven to rotate while the pull block 2311 on the driving rod 231 is driven due to the hinged connection of the driving member 23 and the shell 1, the pull pin rod 232 is also driven to rotate together, the driving block 241 in the driving hole 2321 is driven to move together while the pull pin rod 232 rotates, the latch 24 is driven to retract into the opening and closing hole 12, so that the elevator door is opened, the latch 24 retracts at a constant speed along with the rotation of the driving motor 21 while opening, no noise is generated, and the electronic signal controls the driving motor 21 to rotate reversely while closing, drive gear 211 just can drive driven strip 22 reverse slip in casing 1 with the cooperation of rack 221, the same reason, bolt 24 just can be sent out under sliding and open closed hole 12, bolt 24's activity is all driven by driving motor 21, can not bump the noise of sending out, bolt 24 is the same at the uniform velocity along with driving motor 21's rotation when closing pops out, also can not send the noise, and can also set up emergent electric capacity in driving motor 21's the control circuit, supply power by emergent electric capacity when elevator lock outage, the actuating lever of fixed driving motor 21, it is rotatory to avoid drive gear 211, prevent 24 uncontrolled autonomous activities of bolt, send the noise.

In this embodiment, it is preferable that the housing 1 is provided with an emergency opening 13 at a hinged position of the transmission member 23, the transmission member 23 is provided with an emergency locking block 233 adapted to the emergency opening 13 at a position of the emergency opening 13, the pull hole 222 is a strip-shaped hole, the bolt 24 is provided with a resetting piece 242, and the resetting piece 242 applies an acting force to the bolt 24 toward the opening and closing hole 12.

So set up, when the driving motor 21 is powered off, the driving gear 211 can't rotate, the position of the driven strip 22 is fixed, at this time, the transmission block can be rotated by rotating the emergency lock block 233 located at the emergency opening 13, the pull block 2311 will move in the strip-shaped pull hole 222 and will not be blocked, and the driving hole will be driven, pull the bolt 24 into the opening and closing hole 12, thereby open the elevator door, and when the driving motor 21 is not powered off and is closed, the driven strip 22 direction slides, at this time the reset piece 242 will push the bolt 24, and the bolt 24 drives the pull pin rod 232, the pull pin rod 232 drives the pull block 2311 to always prop against the top of the pull hole 222, the pull block 2311 will not slide in the pull hole 222, although the reset piece 242 is provided, the reset piece 242 will still make the bolt 24 return a little under the driving of the driving motor 21, will not collide, generate noise, the driving motor 21 will be fixed its rotation by the control circuit after the bolt 24 withdraws, the bolt 24 position is fixed, can not pop out by the piece 242 that resets, and can also set up emergent electric capacity among the control circuit of driving motor 21, by emergent electric capacity power supply when elevator lock outage, the drive lever of fixed driving motor 21 avoids drive gear 211 rotatory, prevents that bolt 24 from being popped out by the piece 242 that resets, the noise.

In this embodiment, preferably, a side of the driving opening 2321 facing away from the obturator hole 12 penetrates through a sidewall of the pull pin rod 232.

So set up, in can also pushing back the bolt 24 and opening the obturator 12 between under the circumstances that driving motor 21 does not operate, drive block 241 can be followed and opened and close hole 12 roll-off, bolt 24 can directly push away the door after setting up the inclined plane and press into opening and obturator 12 with bolt 24, and bolt 24 just can roll off again and open obturator 12 under the drive of piece 242 that resets after pressing completely.

In this embodiment, the housing 1 is preferably provided with a movable hole 14 adapted to the latch 24, the reset element 242 is a spring, and the reset element 242 is located in the movable hole 14.

With the arrangement, the spring serving as the reset piece 242 applies acting force to the plug pin 24 in the movable hole 14, the movable hole 14 can also play a role in guiding the plug pin 24, the reset piece 242 cannot pop up, and the structure is simple.

Preferably, the door-locking device 2 further comprises a switch mechanism 25, the switch mechanism 25 comprises a movable contact 251, an open static contact 252 and a close static contact 253, the movable contact 251 is in contact with the open static contact 252 in the open state of the door-locking device 2, and the movable contact 251 is in contact with the close static contact 253 in the close state of the door-locking device 2.

With this arrangement, when the door lock device 2 is in the open state, the movable contact 251 contacts the open stationary contact 252, the switch mechanism 25 displays the open signal, so that the user can understand that the door lock device 2 is in the open state, and when the door lock device 2 is in the closed state, the movable contact 251 contacts the closed stationary contact 253, the switch mechanism 25 displays the closed signal, so that the user can understand that the door lock device is in the closed state, and the open stationary contact 252 and the closed stationary contact 253 can be directly mounted in the housing 1 or can be mounted on a contact holder.

Preferably, in this embodiment, the movable contact 251 is linked with the latch 24, the movable direction of the movable contact 251 is the same as that of the latch 24, and the movable contact 251, the open static contact 252 and the close static contact 253 are located on the same straight line.

So set up, movable contact 251 just can slide along with the removal of bolt 24 together, just can contact with opening the stationary contact 252 or closing the stationary contact 253 that is located the collinear after sliding, and the moving means is for sliding rather than the swing, and is more steady, and the distance between opening stationary contact 252 and the closing stationary contact 253 is farther, changes and controls, and is safer, and movable contact 251 can rely on linking bridge to each other with bolt 24.

Preferably, the movable contact piece 251 is provided with two, and the two movable contact pieces 251 face the opening fixed contact piece 252 and the closing fixed contact piece 253 respectively.

With the arrangement, the distance between the open static contact 252 and the close static contact 253 can be set to be longer, so that the control is easier and the safety is higher.

Preferably, the driven bar 22 is provided with sliding blocks 223 on two sides, and the housing 1 is provided with sliding tracks 15 adapted to the driven bar 22.

So set up, driven strip 22 alright rely on the sliding block 223 of both sides to slide in the slide rail 15 on casing 1, avoided the removal of other directions, driven strip 22 slides more steadily.

In this embodiment, the housing cover 11 is provided with a positioning hole 111 at the hinge position of the transmission member 23, and the transmission member 23 is provided with a positioning shaft 234 at the position of the positioning hole 111.

With such an arrangement, the positioning shaft 234 is inserted into the positioning hole 111 after the housing cover 11 is connected to the housing 1, so that the rotation of the transmission member 23 is more stable.

In this embodiment, the housing 1 is provided with a slot-shaped hole 16 at the position of the driving block 241, the direction of the slot-shaped hole 16 is parallel to the direction of the latch 24, and the driving block 241 moves in the slot-shaped hole 16.

So configured, the straight notch-shaped hole 16 will also serve as a location for the latch pin 24 when the driving member 23 is damaged or fails.

Although the present invention has been described in detail with reference to the foregoing embodiments, the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present invention within the technical scope of the present invention.

Claims (10)

1. The utility model provides an elevator lock that noise is little, includes casing and lock door gear, lock door gear is located in the casing, the casing is equipped with the cap, the casing is equipped with opens the obturator, its characterized in that: the door locking device comprises a driving motor, a driven bar, a driving medium and a bolt, wherein the driving medium comprises a driving rod and a pull pin rod, the driving medium is arranged at the driving rod and the joint of the pull pin rod is hinged to the shell, the driving rod of the driving motor is provided with a driving gear, the driven bar is provided with a rack matched with the driving gear, the driven bar is connected with the shell in a sliding manner, the driven bar is provided with a pull hole, the driving rod is provided with a pull block, the bolt is matched with the opening and closing hole, the bolt is connected with a shell track, the pull pin rod is provided with a driving port, the bolt is provided with a driving block, and when the driving medium rotates, the pull block is matched with the driving block, the pull hole is matched with the driving port in an inner motion manner.

2. A low noise elevator door lock according to claim 1, wherein: the casing is located the articulated position of driving medium is equipped with emergent mouthful, the driving medium is located the position of emergent mouthful is equipped with the emergent locking piece rather than the adaptation, the trompil is the bar hole, the bolt is equipped with the piece that resets, it is right to reset the piece the orientation is applyed to the bolt open the effort of obturator.

3. A low noise elevator door lock according to claim 2, wherein: one side of the driving opening, which faces away from the opening and closing hole, penetrates through the side wall of the pull pin rod.

4. A low noise elevator door lock according to claim 2, wherein: the casing be equipped with the movable hole of bolt adaptation, the piece that resets is the spring, it is located to reset in the movable hole.

5. A low noise elevator door lock according to claim 1, wherein: the door locking device further comprises a switch mechanism, wherein the switch mechanism comprises a movable contact piece, an opening static contact piece and a closing static contact piece, the movable contact piece is in contact with the opening static contact piece when the door locking device is in an opening state, and the movable contact piece is in contact with the closing static contact piece when the door locking device is in a closing state.

6. An elevator door lock with low noise according to claim 5, wherein: the movable contact piece is linked with the bolt, the moving direction of the movable contact piece is the same as that of the bolt, and the movable contact piece, the opening static contact piece and the closing static contact piece are positioned on the same straight line.

7. An elevator door lock with low noise as defined in claim 6, wherein: the movable contact pieces are two and face the opening static contact piece and the closing static contact piece respectively.

8. A low noise elevator door lock according to claim 1, wherein: the driven strip both sides are equipped with the sliding block, the casing be equipped with the slip track of driven strip adaptation.

9. A low noise elevator door lock according to claim 1, wherein: the shell cover is provided with a positioning hole at the hinged position of the transmission piece, and a positioning shaft matched with the transmission piece is arranged at the position of the transmission piece at the positioning hole.

10. A low noise elevator door lock according to claim 1, wherein: the casing is located the position of drive block is equipped with notch opening hole, the direction in notch opening hole with be on a parallel with the bolt, the drive block is in the activity in notch opening hole.

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