CN209721317U - A kind of elevator door lock device with independent driving function - Google Patents

Abstract

The utility model discloses an elevator door lock device with an independent driving function. The existing elevator door lock has poor compensation ability when the effectiveness of the elevator door lock is reduced during the use of the elevator door lock. The motor drives the eccentric wheel shaft of the utility model; both the eccentric wheel and the flywheel are fixed on the eccentric wheel shaft; the movable lock arm is hinged with the lock arm frame; The other end of the rod is eccentrically hinged with the eccentric wheel; the threaded hole on the arm of the movable lock arm with double hooks is connected with the bolt, and the bolt passes through the center hole of the retaining ring; the retaining ring is fixed on the door hanging plate; the return spring sleeve It is placed on the bolt, and the two ends of the return spring are respectively limited by the retaining ring and the moving lock arm; the bolt tail is connected with a nut, and the nut is pressed against the retaining ring to set. The independent driving mechanism of the utility model realizes the precise and fast opening and closing of the door lock mechanism, and the independent driving mechanism can compensate when the locking effectiveness of the elevator door lock decreases during use.

Description

An elevator door lock device with independent driving function

technical field

The utility model belongs to the technical field of elevator door locks, in particular to an elevator door lock device with an independent driving function.

Background technique

Elevators have become a necessary means of transportation in high-rise buildings, greatly facilitating people's daily lives. Along with the number of elevators and the increasing frequency of use year by year, elevator safety accidents also occur frequently, seriously affecting the personal safety of the people and the development of the national economy. In order to improve the safety of elevator use, domestic researchers are making great efforts to develop technical theories to improve elevator safety performance. Of the elevator faults, 60% occur in the elevator landing door system, and the elevator door lock, as a key component installed in the elevator landing door system, is a subsystem with concentrated faults. The failure mode of the elevator door lock is mainly due to the adhesion of the door lock contacts, which reduces the effectiveness of the door lock and causes the failure of the elevator door to open and close, which poses a great threat to the personal safety of passengers.

Existing elevator door lock locking mainly is: the lock hook on the clamping landing door is clamped by the door knife on the car door, drives landing door to open and close synchronously with car door. This method has the advantages of simple structure and high execution efficiency. But at present this kind of implementation mode, the compensation ability when the effectiveness of locking the door lock is reduced during the use of the elevator door lock is very poor.

Contents of the invention

The purpose of the utility model is to provide an elevator door lock device with an independent drive function for the deficiencies of the prior art.

The technical scheme that the utility model solves its technical problem adopts is:

The utility model comprises a flywheel, a transmission device and a locking hook device. The transmission device includes a motor, a moving lock arm, an eccentric wheel, an eccentric wheel connecting rod and an eccentric wheel shaft; the base of the motor is fixed on the motor frame, and the motor frame is fixed on the door hanging plate; the output of the eccentric wheel shaft and the motor The shaft is connected through a coupling; the eccentric wheel and the flywheel are fixed on the eccentric wheel shaft; the lock hook device includes a moving lock arm, a fixed lock hook, a return spring, a moving lock arm limiter, a lock arm installation shaft, a roller and Bearing; the installation shaft of the lock arm is fixed on the lock arm frame, and the lock arm frame is fixed with the door hanging plate; the moving lock arm limiter is fixed on the door hanging plate; the moving lock arm has an integrated Formed two arms, the two arms are connected and one end is supported on the lock arm installation shaft through a bearing. The other end of one arm is hinged with a roller, and the other end of the other arm is provided with double claws, and the outer claw is larger than the inner claw. The claw is long; the middle part of the movable lock arm with double claws is hinged with one end of the eccentric wheel connecting rod, and the other end of the eccentric wheel rod is eccentrically hinged with the eccentric wheel; the movable piece of the contact switch is fixed at the position of the movable lock arm close to the double claws The fixed lock hook is fixed on the door hook fixed plate, and the fixed lock hook is provided with a claw near the end of the movable lock arm, and a card slot is opened near the claw; the contact switch fixed piece is fixed on the contact The fixed seat of the point switch is fixed on the fixed seat of the contact switch, and the fixed seat of the contact switch is fixed on the fixed plate of the door hook; the threaded hole opened on the arm of the movable lock arm with double claws is connected with the bolt, and the bolt passes through the center of the retaining ring hole; the diameter of the central hole of the retaining ring is larger than the major diameter of the bolt thread; the retaining ring is fixed on the door hanging plate; the return spring is set on the bolt, and the two ends of the return spring are respectively formed by the retaining ring and the dynamic lock Arm limit; the bolt tail is connected with a nut, and the nut is pressed against the retaining ring to set.

Described nut adopts double nut.

The beneficial effects of the utility model are:

1. The utility model can independently realize the precise and fast opening and closing of the door lock mechanism by setting an independent driving mechanism to replace the unlocking method of the door knife clamping roller, and greatly improve the effectiveness and reliability of the door lock unlocking and locking;

2. The utility model further ensures the reliability of the door lock through the return spring and the dead weight of the elevator moving lock arm, and can compensate through an independent driving mechanism when the effectiveness of the door lock is reduced during the use of the elevator door lock.

3. The utility model adopts the cam link transmission chain, and realizes the fast completion of the stroke of the lock arm with a simple mechanical device;

4. The utility model adopts the locking method of double claws, which greatly increases the reliability of the door lock.

5. The utility model adopts the mechanical limit method of the movable lock arm limiter, which ensures the safety of the stroke when the movable lock arm rotates.

6. The utility model adopts a flywheel to ensure the stability of the speed and prevent damage to the device caused by high speed.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model.

FIG. 2 is a top view of FIG. 1 .

In the figure: 1. Door hook fixing plate; 2. Contact switch movable piece; 3. Contact switch fixing piece; 4. Contact switch fixing piece fixing seat; 5. Lock hook; 6. Moving lock arm; 7 , motor frame; 8, flywheel; 9, eccentric wheel; 10, eccentric wheel connecting rod; 11, bolt; 12, retaining ring; 13, return spring; 14, roller; 15, bearing; 16, lock arm frame; 17, Door hanging plate; 18, moving lock arm limiter; 19, motor; 20, coupling; 21, eccentric wheel shaft; 22, lock arm installation shaft.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Figures 1 and 2, an elevator door lock device with an independent driving function includes a flywheel 8, a transmission device and a lock hook device. Transmission device comprises motor 19, moving lock arm 6, eccentric wheel 9, eccentric wheel connecting rod 10 and eccentric wheel axle 21; The base of motor 19 is fixed on the motor frame 7, and motor frame 7 is fixed on the door hanging plate 17; Door hanging plate 17 is fixed on the movable part of the landing door frame; the eccentric shaft 21 is connected with the output shaft of the motor 19 through a coupling 20; both the eccentric wheel 9 and the flywheel 8 are fixed on the eccentric shaft 21; the lock hook device includes a movable lock arm 6, Moving lock arm limiter 18, fixed lock hook 5, back-moving spring 13, lock arm installation shaft 22, roller 14 and bearing 15; 17 is fixed; the movable lock arm limiter 18 (adopting the limit pin shaft in the present embodiment) is fixed on the door hanging plate; the movable lock arm 6 is provided with two integrally formed arms, and the two arms are connected and one end is supported by the bearing 15 On the lock arm mounting shaft 22, the other end of one of the arms is hinged with a roller 14, and the other end of the other arm is provided with a double claw, and the outside claw is longer than the inside claw; the movable lock arm 6 is provided with a double claw The middle part of the arm is hinged with one end of the eccentric wheel connecting rod 10, and the other end of the eccentric wheel connecting rod 10 is eccentrically hinged with the eccentric wheel 9; Fixed on the door hook fixing plate 1, the fixed lock hook 5 is provided with a claw near the end of the movable lock arm 6, and a card slot is opened at the position close to the claw; the door hook fixing plate 1 is fixed on the fixed part of the landing door frame Above; the contact switch fixed piece 3 is fixed on the contact switch fixed piece fixed seat 4, and the contact switch fixed piece fixed seat 4 is fixed on the door hook fixed plate 1; the movable lock arm 6 can be fixed around the lock arm installation shaft 22 Rotate to complete locking and separation with the fixed lock hook 5; the threaded hole provided on the arm of the movable lock arm 6 with double claws is connected with the bolt 11, and the bolt 11 passes through the central hole of the retaining ring 12; the retaining ring 12 The diameter of the center hole is greater than the major diameter of the thread of the bolt 11; the retaining ring 12 is fixed on the door hanging plate 17; position; the tail of the bolt 11 is connected with double nuts, and the double nuts compress the retaining ring 12 to set.

The working principle of the elevator door lock device with independent driving function is as follows:

After the door-opening signal is sent out, the motor 19 drives the eccentric wheel shaft 21, thereby driving the flywheel 8 and the eccentric wheel 9 to rotate, and the eccentric wheel 9 drives the moving lock arm 6 to swing around the lock arm installation shaft 22 through the eccentric wheel connecting rod 10, so that the movement of the moving lock arm 6 The double claw is disengaged from the draw-in groove and the claw of the fixed lock hook 5; after the preset stroke is rotated, the motor stops, and the movable lock arm 6 maintains an open state, and the movable lock arm limiter 18 limits the movable lock arm 6, Ensure that the moving lock arm 6 is within the normal travel position. The door knife receives the next electric signal, and the clamping roller drives the horizontal movement of the dynamic lock arm 6, thereby driving the horizontal movement of the lock arm frame 16, the door hanging plate 17, the movable parts of the landing door frame and the entire landing door panel, and realizing the landing door lock. Door opening action.

After the door closing signal is sent out, the door knife first drives the roller 14, the moving lock arm 6, the lock arm frame 16, the door hanging plate 17, the moving parts of the landing door frame and the whole landing door panel to move back, and then the door knife is withdrawn, and the motor moves. Realize moving lock arm 6 to swing reversely, make the double hook claw of moving lock arm 6 hook the draw-in groove and the hook claw of fixed lock hook 5, finally motor stalls, and move lock arm 6 and fixed lock hook 5 are in back-moving spring 13 elastic force and The locked state is maintained under the action of the dead weight of the moving lock arm 6.

Claims (2)

1. a kind of elevator door lock device with independent driving function, including flywheel, transmission device and latch hook device, feature exist In: the transmission device includes motor, dynamic hammerlock, eccentric wheel, connecting rod of eccentric wheel and camshaft；The pedestal of motor is fixed on On motor rack, motor rack is fixed on door strap；The output shaft of the camshaft and motor is connected by shaft coupling；It is eccentric Wheel and flywheel are each attached on camshaft；The latch hook device includes dynamic hammerlock, dynamic hammerlock limiter, fixed lock hook, reset Spring, hammerlock installation axle, idler wheel and bearing；The hammerlock installation axle is fixed on hammerlock frame, and hammerlock frame is fixed with door strap； The dynamic hammerlock limiter is fixed on door strap；The dynamic hammerlock is equipped with integrally formed two arms, and two arms are connected One end is supported in hammerlock installation axle by bearing, and the other end of one of arm is hinged with idler wheel, the other end of another arm Equipped with double hook pawl, and the hook in outside is longer than the hook of inside；Dynamic hammerlock is equipped in the middle part of that arm of double hook pawl to be connected with eccentric wheel Bar one end is hinged, and the connecting rod of eccentric wheel other end and eccentric wheel are eccentric hinged；Contact switch movable plate is fixed on dynamic hammerlock close to double At hook position；The fixed lock hook is fixed in gate stop fixed plate, and fixed lock hook is equipped with a hook close to one end of dynamic hammerlock, And card slot is being opened up at hook position；Contact switch fixinig plate is fixed in contact switch fixinig plate fixing seat, and contact is opened Fixinig plate fixing seat is closed to be fixed in gate stop fixed plate；Dynamic hammerlock is equipped with the threaded hole opened up on that arm of hook and bolt connects It connects, and bolt passes through the centre bore of retaining ring；The centre bore aperture of retaining ring is greater than the Major Diam of bolt；The retaining ring is fixed on On door strap；The reset spring is nested on bolt, and reset spring both ends are limited by retaining ring and dynamic hammerlock respectively；Bolt Tail portion is connected with nut, and nut compresses retaining ring setting.

2. a kind of elevator door lock device with independent driving function according to claim 1, it is characterised in that: described Nut uses double nut.