CN203229285U - Friction reduction safety device for elevator - Google Patents

Abstract

The utility model discloses a friction reduction safety device for an elevator, which mainly comprises a base, a floating lever, a wedge, a force output piece, a horizontal guide grooved block, a vertical guide grooved block, a reset spring and a borehole trajectory. The device is characterized in that the floating lever is hinged with the base. The floating point of the floating lever is arranged in a through hole at the upper part of the wedge. The wedge is arranged in the vertical guide grooved block. The lower inclined surface of the wedge is matched with the right inclined surface of the force output piece. The force output piece is arranged in the horizontal guide grooved block. The reset spring is fixed in an annular space formed by the horizontal guide grooved block and the force output piece. Due to the adoption of the device, an elevator car can be directly protected. Therefore, the friction reduction safety device is better in operability and practicability and meets the requirements of elevators in the market on high safety performance.

Description

An elevator friction deceleration safety device

technical field

The utility model relates to an elevator friction deceleration safety device, in particular to an elevator safety device which can be manually operated by passengers to realize self-rescue. the

Background technique

At present, elevators are widely used in many places, and the safety facilities of elevators have received the attention of designers, but accidental falling accidents occur from time to time. Existing safety devices are mainly speed limiters, safety gears, spindle brakes, etc., wherein the speed limiters are generally installed on the drive motor to brake the motor when the car is overspeed; safety gears are installed on both sides of the car, usually by Speed limiter control, when the car is overspeed, the guide rail is stuck to achieve braking; the main shaft holding brake is used to realize the holding brake after the traction machine stops. These devices indirectly protect the car by controlling the motor, and cannot directly decelerate the car, and have high requirements on the motor and speed limiter. The overall safety of the elevator is poor, and it cannot meet the public's psychological expectations. the

Contents of the invention

In order to overcome the deficiency that the existing elevator braking device cannot directly decelerate the car in an emergency, the utility model provides an elevator frictional deceleration safety device, the passenger can manually operate the emergency deceleration of the car, realize self-rescue, and avoid the elevator falling out of control and causing casualties . the

The technical solution of the present invention is: an elevator friction deceleration safety device, which is mainly composed of a base, a floating lever, a wedge, a force output member, a horizontal guide groove block, a vertical guide groove block, a return spring and a shaft wall track. The feature is that the floating lever is hinged with the base, the floating point of the floating lever is placed in the through hole on the upper part of the wedge, the wedge is placed in the vertical guide groove block, the inclined surface at the lower end of the inclined wedge cooperates with the inclined surface at the right end of the force output part, and the force output The component is placed in the horizontal guide groove block, and the return spring is fixed in the annular space formed by the horizontal guide groove block and the force output member. the

The utility model has the advantages of: the device directly protects the car, and has a strong purpose; through the two force-increasing effects of the lever-wedge combination mechanism, the friction force between the force output part and the well wall track is increased to realize emergency deceleration; the device is easy to install , Manual operation, simple and feasible, and no power supply required. This device can effectively deal with the accidental fall of the elevator and ensure the safety of personal property to the greatest extent. the

Description of drawings

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

Fig. 1 is a sectional view of the utility model;

Fig. 2 is a perspective view of the utility model. the

In the figure 1. base, 2. hinged seat, 3. floating lever, 4. hammer seat, 5. vertical guide groove block, 6. wedge, 7. bolt hole, 8. force output part, 9. reset Spring, 10. horizontal guide groove block, 11. friction layer, 12. car wall, 13. shaft wall track. the

Detailed ways

Referring to Figures 1 to 2, the friction deceleration safety device includes a base 1 in the figure, a floating lever 3, a vertical guide groove block 5, a wedge 6, a bolt hole 7, a force output member 8, a return spring 9, and a horizontal guide groove Block 10, friction layer 11, well wall rail 13. The base 1 and the car wall 12 are fixed with bolts through the bolt holes 7, the floating lever 3 and the base 1 are hinged at the hinge seat 2, the floating point of the lever is located in the through hole at the upper end of the wedge 6, the wedge 6 and the force output Part 8 is placed in the vertical guide groove block 5 and the horizontal guide groove block 10, the force output member 8 cooperates with the wedge 6 at the inclined plane, the vertical guide groove block 5 and the horizontal guide groove block 10 are fixed on the base 1, The return spring 9 is fixed in the annular space formed by the horizontal guide groove block 10 and the force output member 8 . the

When the elevator falls, the passenger hammers the hammer seat 4 downward, and the floating lever 3 rotates downward around the hinge point of the hinge seat 2, driving the inclined wedge 6 to move downward, and the inclined wedge 6 pushes the force output member 8 to move to the left. It is pressed against the shaft wall rail 13, and the elevator is decelerated by frictional force, and at the same time, the self-locking of the device is realized by the oblique angle of the mating surface of the wedge 6 and the force output member 8. When the elevator is out of danger, the maintenance personnel hammers the hammer seat 4 upwards, the wedge 6 moves upwards, and the force output part 8 moves to the right under the action of the return spring 9, so that the force output part 8 is separated from the shaft wall track 13 and returns to normal. run. the

Claims (1)

1. A friction deceleration safety device for an elevator, mainly composed of a base, a floating lever, a wedge, a force output member, a horizontal guide groove block, a vertical guide groove block, a return spring and a shaft wall track, characterized in that: the floating lever Hinged with the base, the floating point of the floating lever is placed in the upper through hole of the inclined wedge, the inclined wedge is placed in the vertical guide groove block, the inclined surface of the lower end of the inclined wedge cooperates with the inclined surface of the right end of the force output part, and the force output part is placed in the horizontal guide Among the groove blocks, the return spring is fixed in the annular space formed by the horizontal guide groove block and the force output member. the

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