CN209988920U - Novel mechanical stopping device - Google Patents

Abstract

Novel machinery prevents device for solve the problem that exists among the prior art, including the rigid coupling in the elevator well fixed plate with can change install in pin on the fixed plate, the connection chamber has on the fixed plate, connect the vertical pivot that is provided with of intracavity, pin one end swivelling joint in the pivot, the pin other end is connected with longitudinal extension's stopper, it has the confession to connect the chamber side pin pivoted rotates the mouth. Through this novel machinery prevents device, can realize when home use elevator overhauls, realize multi-level, stable stopping to stop to elevator car to for elevator maintainer provides can be safe, conveniently carry out the space of work.

Description

Novel mechanical stopping device

Technical Field

The utility model relates to a home use elevator equipment technical field especially relates to a novel machinery prevents device.

Background

With the continuous growth of the Chinese economy and real estate industries, the elevator market is rapidly developed, and the safety of elevators, particularly the safety problem of elevator maintenance, becomes more and more prominent. When repairing an elevator, an elevator service person generally enters the top floor or pit of the elevator shaft to perform on-site maintenance of the elevator, and the guarantee of the personal safety of the service person is an important issue in the meantime. Considering that the hoistway of an elevator, particularly a household elevator in the prior art can not meet the standard requirement of the height of the top layer or the depth of a pit due to the influence of various factors (such as limited installation space), the potential safety hazard is easily generated during the maintenance of the elevator. At present, home elevators are mostly installed in villas, but the villas usually require beautiful appearance to result in smaller height of a top layer and depth of a pit of an elevator shaft, and under the special condition, in order to meet the safe overhaul space of the top layer and the pit, a mechanical stopping device is needed. The existing mechanical stopping device in the market has a simple structure and a large volume, occupies a large longitudinal space on one hand, and is not beneficial to the arrangement of modern household elevators; on the other hand, the mechanically blocked part of the safety device can be separated from the position where the blocking can be effectively realized due to shaking, impact and the like, so that the safety performance is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel machinery prevents device for solve the problem that exists among the prior art, through this novel machinery prevents device, can realize when home use elevator overhauls, realize multi-level, stable stopping to elevator car and prevent, thereby provide the space that can carry out work safely, conveniently for elevator maintainer.

To realize the purpose of the utility model, the utility model adopts the following technical scheme:

novel mechanical prevention device, including the fixed plate of rigid coupling in the elevator well with can change install in pin on the fixed plate, the connection chamber has on the fixed plate, connect the vertical pivot that is provided with of intracavity, pin one end can change connect in the pivot, the pin other end is connected with longitudinal extension's stopper, it has the confession to connect the chamber side pin pivoted rotation mouth.

As the utility model discloses a preferred, the connection chamber has crossing working side and default side, the mouth level of rotating extends in working side and default side, the pin is located during the working side, the stopper is located the elevator well.

As the utility model discloses a preferred, the spring has been cup jointed in the pivot outside, both ends stop respectively about the spring in the lower surface of pin with connect between the chamber bottom surface.

Preferably, the rotation opening is provided with a positioning opening extending upwards on the working side and the default side respectively, and the width of the positioning opening is larger than or equal to that of the stop lever.

Preferably, the working side surface has a first switch directed toward the positioning opening thereon.

Preferably, the default side surface has a second switch directed toward the positioning port thereon.

As the utility model discloses a preferred, first switch and second switch electric connection have the prompting device.

As the utility model discloses a preferred, still include the third switch, third switch electric connection elevator's stopper the pin is located during the work side, the trigger mechanism of third switch is located stopper below.

Preferably, the joint between the stop lever and the stopper comprises a rubber layer.

As a preferred aspect of the present invention, the stopper is arcuate, and the pin is located in the working side with its arcuate opening directed to the outside of the elevator shaft.

The beneficial effects of the utility model reside in that:

1. the stop lever and the stopper cannot be displaced due to unexpected shaking and impact when in a working state through multi-level limiting and fixing of the rotating shaft, the rotating port, the spring and the positioning port in the connecting cavity, and the effect of stopping the lift car can be stably and effectively realized;

2. the whole longitudinal volume structure is small, the arrangement is convenient, and the installation and the arrangement of the home elevator are facilitated;

3. the prompter connected with the first switch and the second switch can improve the safety from the aspect of operation flow and reduce the problems of forgetting operation, misoperation and the like of maintainers;

4. the third switch can ensure that the brake of the elevator can be continuously started to ensure the braking of the car in advance when the stop lever and the stopper are in the working state, so that the brake can directly play a role in speed reduction braking to reduce the danger even if the car falls and other dangerous conditions occur.

Drawings

Fig. 1 is a schematic structural view of the stop lever of the present invention located at the working side;

fig. 2 is a schematic structural view of the stop lever of the present invention located at the default side;

fig. 3 is a schematic structural diagram of the connection cavity of the present invention.

Detailed Description

The present invention is described in detail below with reference to the attached drawings:

as shown in fig. 1, 2, 3 novel mechanical prevention device, include through bolt and clamp plate rigid coupling steel fixed plate 1 on the steel post in the elevator well and can change the tubulose pin 3 of installing the rectangular cross section on fixed plate 1, the welding has the connection chamber 2 of cuboid on fixed plate 1, connect the vertical pivot 21 that is provided with in chamber 2, pin 3 one end can change the connection in pivot 21 through cup jointing, 3 other end bolted connection of pin has vertical extension's stopper 31, connect 2 side machineries in chamber to have the rotation mouth 22 that supplies pin 3 to revolute 21 horizontal rotation. The structure of the rotating opening 22 enables the stop lever 3 to be limited in the vertical direction, so that the protection failure conditions such as unexpected offset are reduced.

In this embodiment, the connecting cavity 2 has a working side 23 and a default side 24 orthogonal to each other on the surface of a rectangular parallelepiped, the rotation opening 22 extends horizontally on the working side 23 and the default side 24 and enables the blocking rod 3 to rotate between two positions of the working side 23 and the default side 24, and when the blocking rod 3 is located on the working side 23, the stopper 31 is located in the elevator shaft surrounded by the steel beams, so that the protection function of stopping and stopping the movement of the car can be achieved when the blocking rod is located on the working side 23.

In this embodiment, the outer side of the rotating shaft 21 is sleeved with a cylindrical spring 25, and the upper end and the lower end of the spring 25 respectively abut against the lower surface of the stop lever 3 and the bottom surface of the inner cavity of the connecting cavity 2, so that the elastic abutment from the bottom of the connecting cavity 2 to the upper stop lever 3 is formed and abuts against the upper side surface of the rotating opening 22 to realize more stable positioning.

In this embodiment, the rotating opening 22 is machined with a positioning opening 221 extending upward on the working side 23 and the default side 24, the width of the positioning opening 221 is greater than or equal to the width of the stop lever 3, under the elastic resisting action of the spring 25, the stop lever 3 can be pushed upward into the positioning buckle 221 by the elastic force when being located at the positioning opening 221 of the working side 23 or the default side 24 due to the sleeving and rotating structure of the stop lever 3, and the stop lever can be completely and stably positioned in the vertical and horizontal directions of the working side 23 or the default side 24 by the accommodation of the positioning buckle 221 and the elastic force action of the spring 25, so that the stopper 31 is accurately and stably positioned when being located on a certain side, and the effectiveness of the stopper on safety protection is ensured.

In this embodiment, the surface of the working side 23 has a first switch 231 directed to the positioning port 221 thereon. The default side 24 surface has a second switch 241 of the positioning aperture 221 directed thereto. The first switch 231 and the second switch 241 are photoelectric switches or micro switches, which are electrically connected with prompters (which may be warning lamps or buzzers, not shown in the figure), and the on/off of the first switch 231 and the second switch 241 is realized by the movement of the stop lever 3, if the stop lever 3 is located in the positioning buckle 221 of the working side 23, the stop lever is located below the first switch 231, and the on/off state of the first switch 231 is changed by the blocking of the photoelectric sensing element of the first switch 231 or the contact of the micro contact element, so as to control the prompters to generate different prompting effects.

In this embodiment, the elevator further includes a third switch 4 mounted on a cross beam of the hoistway, the third switch 4 is electrically connected to a brake of the elevator, when the stop lever 3 is located on the working side 23, a trigger mechanism of the third switch 4 is located below the stopper 31, the third switch 4 is a photoelectric switch or a microswitch, and the on-off state of the third switch is controlled by the position of the stopper 31.

In this embodiment, the joint between the stopper 31 and the stopper 3 includes a rubber layer 32. The rubber layer 32 can effectively protect the connecting part of the stop lever 3 and the stopper 31, reduce, buffer external impact, move and shield external water vapor dust to prevent corrosion, so that the stopper 31 is more stably connected with the stop lever 3, the service life of the stopper is longer when the stopper plays a role in stopping the car, and the safety effect is better.

In this embodiment, the stopper 31 is an arcuate plate made of spring steel, carbon fiber plate or other hard material with certain elasticity, and when the stop lever 3 is located at the working side 23, its arcuate opening is directed to the outside of the elevator shaft, and its arcuate structure makes it possible to further improve the buffer stopping effect on the car by its own elasticity.

In practice, the fixed plate 1 is installed in the hoistway, and its distance from the top or bottom of the hoistway is preferably set to a length suitable for the entry and normal operation of the service personnel. When the maintenance personnel perform maintenance, the elevator car is controlled to move to the other end of the shaft which is not maintained, and then the maintenance personnel enter the shaft. At this time, the stop lever 3 is located in the positioning hole 221 of the default side 24, the first switch 231 is turned off, the second switch 241 is turned on, and the indicator (taking the indicator as an example) is turned on to indicate the operation of the service man. The maintainer will keep off 3 pushing down and move to working side 23 to the right after the location mouth 221 that leaves default side 24 to put into working side 23's location mouth 221 with it, fender 3 is stable being located wherein under the effect of spring 25 promptly, and the removal second switch 241 because of fender 3 is for opening a circuit this moment, and first switch 231 is bright green lamp for the route and suggests that the maintainer stopping means has begun to function and can attentively overhaul (promptly prevent through the suggestion maintainer that they forget to open the stopping means thereby form first safety protection). The stopper 31 at the end of the bar 3 on the working side 23 is now just above the third switch 4 and is in the open state to control the operation of the brake of the car, i.e. to stop the car at the far end, even if an accident occurs, the falling or rising of the car will be acted by the brake and will not move too fast, so that the service personnel can have enough time to react to handle or avoid the danger, and at the same time, the kinetic energy of the car can be reduced to make it stop by effective blocking when contacting the stopper 31 (i.e. the second safety protection to reduce the loss). Meanwhile, the stopper 31 of the stop lever 3 on the working side 23 extends into the shaft, and when the car runs out of control to the position, the car is stopped through the own bow elasticity and the rigidity connected to the shaft, so that the evacuation of maintenance personnel is protected (namely the final protection). Because the whole volume of this prevention device is less, the car of looking at different structures, volume is different, can choose for use in the well multiunit, the mode of multilayer arrangement guarantees the effect of preventing. After the maintenance is finished, the maintainer can pull the stop lever 3 back to the default side 23, at the moment, the hoistway is recovered to be normal, the third switch 4 is closed, so that the brake of the elevator car is controlled by the elevator to operate when needed, namely, the whole elevator recovers to a normal working state. On the basis of the above work flow, as a preferable scheme for further improving the protection capability, a safety switch on the fixing plate 1 or the elevator shaft may be installed at the blocking lever 3 for limiting the blocking lever 3, such as an electrically controlled electromagnetic switch or a mechanical elastic, clip-type switch already available on the market. This kind of safety switch carries on spacingly through modes such as absorption, elasticity stop or mechanical card end to pin 3 at ordinary times, need press simultaneously or unblock this safety switch when pulling pin 3 and rotate at above-mentioned maintainer and let go up pin 3 so that pin 3 can be pulled to work or default condition like in the above-mentioned work flow, pulls the back maintainer through releasing or lock safety switch with pin 3 locking once more. The safety switch and the positioning opening 221 can form mutual safety backup for stable safety protection of the position of the stop lever 3, so that when one of the stop lever and the stop lever fails, the other stop lever can be protected, and meanwhile, the safety level is improved through the standard for operation of maintenance personnel.

The above embodiments are only described for the preferred embodiments of the present invention, and are not intended to limit the concept and scope of the present invention, and the various modifications and improvements made by the ordinary person in the art without departing from the design concept of the present invention all fall into the protection scope of the present invention.

Claims (10)

1. Novel machinery prevents device, including the fixed plate of rigid coupling in the elevator well with can change install in pin on the fixed plate, its characterized in that, the connection chamber has on the fixed plate, connect the vertical pivot that is provided with of intracavity, pin one end rotatable connect in the pivot, the pin other end is connected with longitudinal extension's stopper, it has the confession to connect the chamber side pin pivoted rotates the mouth.

2. The novel mechanical resistance device of claim 1, wherein the connecting chamber has intersecting working and default sides, the rotation opening extends horizontally across the working and default sides, and the resistance device is located within the elevator hoistway when the bar is located on the working side.

3. The novel mechanical stopping device as claimed in claim 2, wherein a spring is sleeved outside the rotating shaft, and the upper end and the lower end of the spring are respectively stopped between the lower surface of the stop lever and the bottom surface of the connecting cavity.

4. The novel mechanical arresting device of claim 3 wherein said rotation opening has upwardly extending locating openings on said working side and said default side, respectively, said locating openings having a width equal to or greater than a width of said stop bar.

5. The novel mechanical stop device of claim 4 wherein said work side surface has a first switch directed toward said locating port thereon.

6. The novel mechanical stop of claim 5 wherein said default side surface has a second switch directed toward said locating port thereon.

7. The novel mechanical arrest of claim 6 wherein the first and second switches are electrically connected to a reminder.

8. The novel mechanical stopping device of claim 2 further comprising a third switch electrically connected to a brake of the elevator, wherein when the lever is on the working side, a trigger mechanism of the third switch is located below the stopper.

9. The novel mechanical stop of claim 1 wherein the connection of the stop lever to the stop comprises a rubber layer.

10. The novel mechanical stopping device of claim 2 wherein said stopper is arcuate with its arcuate opening pointing out of the hoistway when said bar is on said working side.

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