Double-bolt motor lock for elevator door

Abstract

The utility model discloses a double-bolt motor lock for an elevator door, which comprises a lock body, two bolts are arranged on the lock body in a sliding manner, driving shafts are respectively arranged in the lock body corresponding to the positions of the two bolts, matching parts and matching grooves are arranged between the driving shafts and the bolts, the matching parts are used for driving the bolts to stretch out and draw back, and the matching grooves are used for driving the bolts to stretch out and draw back. A driving motor is arranged between the two driving shafts, the two driving shafts are respectively connected with transmission gears with the same specification, the transmission gears on the two driving shafts are meshed with each other, the driving motor is meshed with one transmission gear through a gear set, one spring bolt is further connected with a supporting arm, the supporting arm is connected with a contact piece, and the contact piece is connected with the spring bolt. The contact piece comprises two movable contacts, and static contact pieces used for being connected with the motor to control the elevator door to act are further arranged at the positions, corresponding to the movable contacts, in the lock body. The structure is simple, the layout is reasonable, the door body opening synchronism is high when the door body is electrically connected, and the use effect is good.

Description

Technical Field

[0001] The utility model relates to a double-bolt motor lock for an elevator door. Background Art

[0002] Double-bolt motor locks are usually used in elevator doors. When in use, since elevator doors usually have a double-opening structure, the double-bolt design can lock two elevator doors at the same time, which can ensure simultaneous opening and closing. At the same time, after the motor lock completes the unlocking action, it is usually necessary to send an electrical signal synchronously to drive the motor to open and close the door body. However, the existing structure has poor synchronization in the action of connecting the power to open the door body after the bolt is retracted. There is a certain delay in the opening and closing of the elevator door, which affects the reliability and sensitivity of the door body and reduces the use effect. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a double-bolt motor lock for elevator doors, which has a simple structure, a reasonable layout, strong synchronization in electrically controlling the door opening, and a good use effect.

[0004] To achieve the above-mentioned purpose, the utility model provides a double-bolt motor lock for an elevator door, comprising a lock body, two bolts being slidably arranged on the lock body, drive shafts being respectively arranged at positions corresponding to the two bolts in the lock body, a mating piece and a mating groove being arranged between the drive shaft and the bolt for driving the bolt to extend and retract, a drive motor being arranged between the two drive shafts, transmission gears of the same specification being respectively connected to the two drive shafts, the transmission gears on the two drive shafts being meshed with each other, the drive motor being meshed with one of the transmission gears through a gear set, a support arm being further connected to one of the bolts, a contact piece being connected to the support arm, the contact piece comprising two moving contacts, and a static contact piece for connecting the motor to control the movement of the elevator door being further arranged at the position corresponding to the moving contact in the lock body.

[0005] The beneficial effect of this arrangement is that the special transmission form, that is, the transmission gears on the two drive shafts mesh with each other, and the drive motor is connected to one of the transmission gears through a gear set, which greatly enhances the synchronization. During the operation of the elevator, it can accurately ensure that the two lock tongues are synchronously extended and retracted, avoiding the situation where the elevator door is not closed tightly or opened accidentally due to inconsistent lock tongue movements, which fundamentally improves the safety of elevator operation. Due to the strong synchronization of the two lock tongues, the support arm can stably drive the contact piece to ensure that the two moving contacts can contact the static contact piece synchronously. This feature enables the elevator door to respond quickly when receiving the opening and closing instructions. Whether the elevator needs to open the door when it reaches the floor or needs to close the door when it is ready to leave, the action can be performed efficiently to reduce the waiting time for passengers. Moreover, this design greatly improves the reliability of the entire structure, reduces the probability of failures caused by asynchronous components or poor contact, ensures the stable operation of the elevator, and provides passengers with a safer and more convenient elevator experience.

[0006] As a further configuration of the utility model, the lock tongue has a connecting block extending into the lock body, the mating groove is arranged on the connecting block, the mating piece is arranged on the driving shaft, the side wall of the connecting block is arranged with a connecting flange, the support arm is arranged with a mating groove, and the mating groove is clamped with the connecting flange.

[0007] The beneficial effect of this arrangement is that the matching groove set on the connecting block and the matching piece on the drive shaft are precisely matched, ensuring stable power transmission and providing a solid foundation for the smooth extension and retraction of the lock tongue. The connecting flange on the side wall of the connecting block is connected to the matching groove on the support arm. From the perspective of connection stability, the connecting structure makes the support arm and the lock tongue tightly connected, and can withstand large external forces without loosening. During assembly, workers only need to align the connecting flange with the matching groove of the support arm and easily snap it in, without the need for complicated tools and processes, which greatly improves assembly efficiency.

[0008] As a further configuration of the utility model, a pin hole is provided on one side of the connecting block corresponding to the connecting flange, a positioning hole is provided on the support arm, and a fastening screw is provided in the pin hole for passing through the matching groove and fastening with the positioning hole.

[0009] The beneficial effect of this arrangement is that when the fastening screw passes through the pin hole, the matching slot and then screws into the arm positioning hole, a strong fastening force will be generated to firmly lock the connection block and the arm together, greatly improving the tightness of the connection. This tight connection makes the arm more stable when driving the contact piece to move, and will not be displaced due to vibration or external force. In this way, it can ensure that the moving and static contact pieces are always in precise contact, preventing signal transmission interruption or misjudgment due to poor contact, thereby ensuring that the elevator door accurately receives and executes the opening and closing instructions, further improving the reliability and safety of the elevator operation.

[0010] As a further configuration of the utility model, a guide groove and a guide block are provided between the connecting block and the lock body, and the guide groove and the guide block are slidably matched.

[0011] The beneficial effect of this arrangement is that the guide groove and the guide block adopt a sliding cooperation mode. When the lock tongue is extended and retracted by the drive shaft, the connecting block can move stably along a precise path under the constraints of the guide groove and the guide block. This arrangement significantly improves the structural stability, prevents the connecting block from offsetting or shaking during movement, and avoids the lock tongue from getting stuck or stuck. At the same time, the cooperation between the guide groove and the guide block reduces unnecessary friction and resistance, ensures the smooth operation of the connecting block, helps the lock tongue to extend and retract smoothly, and thus ensures that the elevator door can reliably open and close, providing strong support for the safe operation of the elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the internal structure of an embodiment of the utility model;

[0013] Figure 2 This is a schematic diagram of the transmission structure of an embodiment of the utility model;

[0014] Figure 3 It is a schematic structural diagram of a locking tongue and a connecting block thereof in an embodiment of the utility model. DETAILED DESCRIPTION

[0015] The utility model provides an embodiment of a double-bolt motor lock for an elevator door, such as Figures 1 to 3As shown, it comprises a lock body 1, on which two lock tongues 2 are slidably arranged, and drive shafts 3 are respectively arranged at positions corresponding to the two lock tongues 2 in the lock body 1, and a matching piece 31 and a matching groove 51 for driving the lock tongue 2 to extend and retract are arranged between the drive shaft 3 and the lock tongue 2, and a drive motor 4 is arranged between the two drive shafts 3, and transmission gears 32 of the same specification are respectively connected to the two drive shafts 3, and the transmission gears 32 on the two drive shafts 3 are meshed with each other, and the drive motor 4 is meshed with one of the transmission gears 32 through a gear set, and one of the lock tongues 2 is also connected to a support arm 6, and the support arm 6 is connected to a contact piece 61, and the contact piece 61 includes two moving contacts, and a static contact piece 7 for connecting the motor to control the movement of the elevator door is also arranged at the corresponding position of the moving contact in the lock body 1. The beneficial effect of such a setting is that: such a setting has a special transmission form, that is, the transmission gears 32 on the two drive shafts 3 are meshed with each other, and the drive motor 4 is connected to one of the transmission gears 32 through a gear set, which greatly enhances the synchronization. During the operation of the elevator, it can accurately ensure that the two lock tongues 2 are synchronously extended and retracted, avoiding the situation where the elevator door is not closed tightly or opened accidentally due to inconsistent movement of the lock tongue 2, which fundamentally improves the safety of the elevator operation. Since the two lock tongues 2 have strong synchronization, the support arm 6 can stably drive the contact piece 61 to ensure that the two moving contacts can synchronously contact the static contact piece 7. This feature enables the elevator door to respond quickly when receiving opening and closing instructions. Whether the elevator needs to open the door when it reaches the floor, or needs to close the door when preparing to leave, the action can be executed efficiently, reducing the waiting time for passengers. Moreover, this design greatly improves the reliability of the entire structure, reduces the probability of failures caused by asynchronous components or poor contact, ensures the stable operation of the elevator, and provides passengers with a safer and more convenient elevator experience.

[0016] As a further configuration of this embodiment, the lock tongue 2 is provided with a connecting block 5 extending into the lock body 1, the matching groove 51 is provided on the connecting block 5, the matching piece 31 is provided on the drive shaft 3, the connecting block 5 side wall is provided with a connecting flange 52, the supporting arm 6 is provided with a matching groove 51, and the matching groove 51 is provided in a clamping connection with the connecting flange 52. The beneficial effect of such a configuration is that the matching groove 51 provided on the connecting block 5 is precisely matched with the matching piece 31 on the drive shaft 3, ensuring stable power transmission and providing a solid foundation for the smooth extension and retraction of the lock tongue 2. The connecting flange 52 on the side wall of the connecting block 5 is provided in a clamping connection with the matching groove 51 on the supporting arm 6. From the perspective of connection stability, the clamping structure makes the supporting arm 6 and the lock tongue 2 closely connected, and can withstand large external forces without loosening. During assembly, workers only need to align the connecting flange 52 with the matching groove 51 of the supporting arm 6 and easily clamp it in, without the need for complex tools and processes, which greatly improves the assembly efficiency.

[0017] As a further configuration of this embodiment, a pin hole 53 is provided on one side of the connecting block 5 corresponding to the connecting flange 52, and a positioning hole is provided on the support arm 6. The pin hole 53 is matched with a fastening screw for passing through the matching slot 51 and fastening with the positioning hole. The beneficial effect of such a configuration is that when the fastening screw passes through the pin hole 53, the matching slot 51 and then screws into the positioning hole of the support arm 6, a strong fastening force will be generated to firmly lock the connecting block 5 and the support arm 6 together, greatly improving the tightness of the connection. This tight connection makes the support arm 6 more stable when driving the contact piece 61 to move, and will not be displaced due to vibration or external force. In this way, it can ensure that the dynamic and static contact pieces 7 are always in precise contact, preventing signal transmission interruption or misjudgment due to poor contact, thereby ensuring that the elevator door accurately receives and executes the opening and closing instructions, further improving the reliability and safety of the elevator operation.

[0018] As a further configuration of this embodiment, a guide groove 54 and a guide block are provided between the connecting block 5 and the lock body 1, and the guide groove 54 and the guide block are slidably matched. The beneficial effect of such a configuration is that, in such a configuration, the guide groove 54 and the guide block are slidably matched, and when the lock tongue 2 is extended and retracted due to the drive shaft 3, the connecting block 5 can stably move along a precise path under the constraints of the guide groove 54 and the guide block. This configuration significantly improves the structural stability, prevents the connecting block 5 from deflecting or shaking during movement, and avoids the lock tongue 2 from getting stuck or stuck. At the same time, the cooperation between the guide groove 54 and the guide block reduces unnecessary friction and resistance, ensures the smooth operation of the connecting block 5, and helps the lock tongue 2 to extend and retract smoothly, thereby ensuring that the elevator door can reliably realize the opening and closing action, and provides strong support for the safe operation of the elevator.

[0019] The above example is only one preferred specific example of the present invention. The common changes and substitutions made by those skilled in the art within the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. A double-bolt motor lock for an elevator door, comprising a lock body, two bolts being slidably arranged on the lock body, drive shafts being arranged in the lock body at positions corresponding to the two bolts, a mating piece and a mating groove for driving the bolts to extend and retract being arranged between the drive shaft and the bolts, characterized in that: A driving motor is arranged between the two driving shafts, and transmission gears of the same specifications are respectively meshed on the two driving shafts. The transmission gears on the two driving shafts are meshed with each other, and the driving motor is meshed with one of the transmission gears through a gear set. A support arm is also connected to one of the lock tongues, and a contact piece is connected to the support arm. The contact piece includes two moving contacts, and a static contact piece for connecting the motor to control the movement of the elevator door is also arranged at a position corresponding to the moving contact in the lock body.

2. The double-bolt motor lock for elevator doors according to claim 1, characterized in that: The lock tongue has a connecting block extending into the lock body, the matching groove is arranged on the connecting block, the matching piece is arranged on the driving shaft, the side wall of the connecting block is arranged with a connecting flange, the support arm is arranged with a matching groove, and the matching groove is clamped with the connecting flange.

3. The double-bolt motor lock for elevator doors according to claim 2, characterized in that: A pin hole is arranged on one side of the connecting block corresponding to the connecting flange, and a positioning hole is arranged on the supporting arm. A fastening screw is matched in the pin hole for passing through the matching groove and fastening with the positioning hole.

4. The double-bolt motor lock for elevator doors according to claim 3, characterized in that: A guide groove and a guide block are provided between the connecting block and the lock body, and the guide groove and the guide block are slidably matched.

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