CN220906857U - Mechanical stopping device under platform ladder - Google Patents

Abstract

The application provides a mechanical stopping device under a platform ladder, and belongs to the technical field of elevators. The mechanical stopping device under the platform ladder comprises a base, wherein the base is arranged on an external elevator shaft frame, a push rod is elastically hinged to the base, a locking piece is arranged on the push rod, and the push rod is used for supporting an external elevator car. In this application: the ejector rod can be received in one side of elevator shaft, can not influence elevator normal operating, when the maintenance is needed, maintenance personnel utilize the locking piece to camber and lock the ejector rod, even like this the car falls out of control, also can be prevented by the ejector rod, and then protected below maintenance personnel's safety, in addition, when operating the ejector rod, personnel are located the elevator shaft outward, have further improved the security.

Description

Mechanical stopping device under platform ladder

Technical Field

The application relates to the technical field of elevators, in particular to a mechanical stopping device under a platform ladder.

Background

The elevator needs periodic maintenance as special equipment to guarantee safe in utilization, also guarantee maintenance personnel's safety simultaneously, when maintenance personnel need descend to the elevator shaft bottom to overhaul, the elevator shaft bottom is provided with strutting arrangement generally, in order to avoid the car to fall and smash the maintenance personnel, but to indoor elevator, such as the private elevator in the villa, the elevator shaft space is very little, and elevator shaft bottom does not have sufficient degree of depth to install conventional strutting arrangement yet.

Disclosure of utility model

In order to overcome the above disadvantages, the present application provides a mechanical stopping device under a platform ladder, which aims to solve the above-mentioned problems in the prior art.

The embodiment of the application provides a mechanical stopping device under a platform ladder, which comprises a base, wherein the base is arranged on an external elevator shaft frame, a push rod is elastically hinged on the base, a locking piece is arranged on the push rod, and the push rod is used for supporting an external elevator car.

In a specific embodiment, the base comprises an L-shaped bottom plate, a reinforcing rib is arranged on the bottom plate, and the lower end of the ejector rod is hinged with the reinforcing rib.

In the above implementation, the base plate and the reinforcing ribs provide the ejector pins with a hinged support, and in this embodiment, the reinforcing ribs and the ejector pins are hinged by a bolt.

In a specific embodiment, the bottom plate is fixedly connected with a stop, and the stop is movably abutted against the ejector rod.

In the implementation process, the stop block is used for limiting the camber angle of the ejector rod.

In a specific embodiment, the back of the bottom plate is a mounting surface, and a backing plate is arranged on the mounting surface.

In the implementation process, the back of the bottom plate is leaned against the frame of the elevator shaft through the base plate, and then the base plate is installed and fixed by using the fasteners, so that the base plate can provide certain buffering capacity.

In a specific embodiment, the upper end of the ejector rod is fixedly connected with a pull plate.

In the realization process, a spring or an elastic rope is arranged on an external elevator shaft frame, the outer end of the spring is hooked on a pull plate to provide restoring force for the ejector rod, and when the elevator is normally used, the ejector rod is vertically upwards and hidden in the space at the right rear side of the bottom of the frame.

In a specific embodiment, the locking member comprises a guy cable and a fixed pulley, the fixed pulley is arranged on the bottom plate, the upper end of the guy cable is fixed on the upper portion of the ejector rod, and the lower end of the guy cable is turned through the fixed pulley.

In a specific embodiment, the locking piece further comprises a hook, the hook is mounted on the elevator frame opposite to the base, and a rope tightener is arranged at the lower end of the guy rope and is connected with the hook in a hanging mode.

In the realization process, the ejector rod is positioned at the inner side of the elevator shaft, the hook is positioned at the elevator door opening at the outer side of the elevator shaft, when the elevator normally operates, the guy rope is hooked on the hook through the fixed pulley, so that interference of normal operation of the elevator car is avoided, when maintenance is needed, a maintenance person stands at the elevator door opening, pulls the guy rope through the guy rope, and then pulls the ejector rod to be changed into an outwards inclined state and kept, so that the elevator car can fall down on the ejector rod accidentally, the lower maintenance person is not hurt, after operation is finished, the maintenance person can enter the elevator shaft bottom, the safety is higher, in the embodiment, the guy rope adopts a U-shaped self-adhesive magic tape, the length of the magic tape is changed through changing the pasting position, and then the guy rope is pulled and loosened, the structure is simple, so that the maintenance person can pull the ejector rod under the condition of not entering the elevator shaft, in another embodiment, the commercial wheel-type guy rope is adopted, the guy rope is pulled and loosened through the guy rope, and the tension state can be kept well, and the tension state is also more labor-saving when the guy rope is pulled.

In a specific embodiment, the base is provided with a switch movably connected with the ejector rod.

In the implementation process, the two switches are connected with the elevator control box, in the embodiment, the two switches are micro-switches, the corresponding switch is triggered when the ejector rod is vertical, the ejector rod is indicated to be retracted and is in a normal working state, the other switch is triggered when the ejector rod is inclined outwards, the elevator is indicated to be in a maintenance state, and part of functions of the elevator are locked so as not to hurt maintenance personnel.

Compared with the prior art, the application has the beneficial effects that: the ejector rod can be received in one side of elevator shaft, can not influence elevator normal operating, when the maintenance is needed, maintenance personnel utilize the locking piece to camber and lock the ejector rod, even like this the car falls out of control, also can be prevented by the ejector rod, and then protected below maintenance personnel's safety, in addition, when operating the ejector rod, personnel are located the elevator shaft outward, have further improved the security.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a mechanical stopping device under a platform ladder according to an embodiment of the present application;

Fig. 2 is a schematic diagram of a connection relationship between a base and a jack according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a connection relationship between a switch and a push rod according to an embodiment of the present application;

Fig. 4 is a schematic structural diagram of a connection relationship between a rope tightener and a hook according to an embodiment of the present application.

In the figure: 10-a base; 11-a bottom plate; 12-reinforcing ribs; 13-a stop; 14-backing plate; 20-ejector rods; 30-locking member; 31-inhaul cable; 32-fixed pulleys; 33-hooking; 34-rope tightener; 40-pulling plates; 50-switch.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

Referring to fig. 1-4, the application provides an under-platform-ladder mechanical stopping device, which comprises a base 10, wherein the base 10 is installed on an external elevator shaft frame, a push rod 20 is elastically hinged on the base 10, a locking piece 30 is arranged on the push rod 20, and the push rod 20 is used for supporting an external elevator car. Wherein, ejector pin 20 can receive in one side of elevator shaft, can not influence elevator normal operating, and when the maintenance was needed, maintenance personnel utilized locking piece 30 to camber and lock ejector pin 20, even like this the car is out of control to fall, also can be prevented by ejector pin 20, and then protected below maintenance personnel's safety, in addition, when operating ejector pin 20, personnel are located the elevator shaft outward, have further improved the security.

Referring to fig. 1-3, a base 10 includes an L-shaped bottom plate 11, a reinforcing rib 12 is disposed on the bottom plate 11, and a lower end of a push rod 20 is hinged to the reinforcing rib 12. The base plate 11 and the reinforcing ribs 12 provide a hinged support for the carrier rod 20, and in this embodiment, the reinforcing ribs 12 and the carrier rod 20 are hinged by a bolt.

Referring to fig. 2-3, a bottom plate 11 is fixedly connected with a stop 13, and the stop 13 is movably abutted against a push rod 20. The stopper 13 serves to limit the camber angle of the jack 20.

Referring to fig. 2-3, the back of the base plate 11 is a mounting surface, and a pad 14 is disposed on the mounting surface. The back of the floor 11 rests on the frame of the hoistway via the backing plate 14 and is then secured by means of fasteners, the backing plate 14 providing a certain cushioning capacity.

Referring to fig. 2, a pull plate 40 is fixedly connected to the upper end of the push rod 20. The external elevator shaft frame is provided with a spring or an elastic rope, the outer end of the spring is hooked on the pull plate 40 to provide restoring force for the ejector rod 20, and when the elevator is used normally, the ejector rod 20 is vertically upwards and hidden in the space inside the bottom of the frame.

Referring to fig. 1-4, the locking member 30 includes a pull cable 31 and a fixed pulley 32, the fixed pulley 32 is disposed on the bottom plate 11, the upper end of the pull cable 31 is fixed on the top of the push rod 20, and the lower end of the pull cable 31 is turned by the fixed pulley 32. The locking member 30 further comprises a hook 33, the hook 33 is mounted on the elevator frame opposite to the base 10, and a rope tightener 34 is arranged at the lower end of the guy rope 31 and is connected with the hook 33 in a hanging manner. The ejector rod 20 is located in the elevator hoistway, the hook 33 is located at the elevator doorway of the outside of the elevator hoistway, when the elevator normally operates, the guy rope 31 is turned through the fixed pulley 32 and then hooked on the hook 33 through the rope tightener 34, so that interference with normal operation of the elevator car is avoided, when maintenance is needed, a maintenance person stands at the elevator doorway and goes out, the guy rope 31 is pulled through the rope tightener 34, and then the ejector rod 20 is pulled to be in a camber state and kept, so that the elevator car can fall down accidentally, the elevator car can fall on the ejector rod 20 without hurting the following maintenance person, after operation is completed, the maintenance person can enter the elevator hoistway bottom, the safety is higher, in the embodiment, the rope tightener 34 adopts a U-shaped self-adhesion magic tape, the length of the magic tape is changed through changing the pasting position, and then the guy rope 31 is pulled and loosened, the elevator hoistway door is simple in structure, so that the maintenance person can pull the ejector rod 20 under the condition without entering the elevator hoistway, in another embodiment, the maintenance person can be in a good tension state through the ratchet rope tightener 34, and the tension can be kept in a good tension state.

Referring to fig. 3, a switch 50 is disposed on the base 10 and movably connected to the ejector rod 20. The switch 50 is provided with two switches connected with the elevator control box, in this embodiment, the two switches are micro switches 50, the corresponding switch 50 is triggered when the ejector rod 20 is vertical, the ejector rod 20 is retracted to be in a normal working state, the other switch 50 is triggered when the ejector rod 20 is tilted outwards, the elevator is in a maintenance state, and part of functions of the elevator are locked so as not to hurt maintenance personnel.

The working principle of the mechanical stopping device under the platform ladder is as follows: when the elevator normally operates, the guy rope 31 turns to through the fixed pulley 32, the rethread euphroe 34 hooks on the couple 33, in order to avoid interfering car normal operating, when needing to overhaul, maintenance personal stands out in the elevator gate, pull guy rope 31 through euphroe 34, and then pull ejector pin 20 camber and lean on dog 13, and keep guy rope 31 tensioning's state, and then keep ejector pin 20 camber's state, make maintenance personal can pull ejector pin 20 under the circumstances that does not get into in the elevator shaft, the security is higher, if the elevator accident falls down when overhaul, will fall on ejector pin 20, can protect the maintenance personal of below, in sum, ejector pin 20 can receive in one side of elevator shaft, can not influence elevator normal operating, when needing to maintain, maintenance personal utilizes locking piece 30 to camber and lock ejector pin 20, even like this even the car is out of control falls, can also be prevented by ejector pin 20, and then the security of below maintenance personal has been protected, in addition, when operating ejector pin 20, personnel are located outside the elevator shaft, further improved the security.

The above embodiments of the present application are only examples, and are not intended to limit the scope of the present application, and various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

Claims (8)

1. The utility model provides a machinery blocking device under platform ladder, its characterized in that includes the base, the base is installed on external elevator shaft frame, elastic hinge has the ejector pin on the base, be provided with the locking piece on the ejector pin, the ejector pin is used for supporting external car.

2. The mechanical stopping device under a platform ladder according to claim 1, wherein the base comprises an L-shaped bottom plate, a reinforcing rib is arranged on the bottom plate, and the lower end of the ejector rod is hinged with the reinforcing rib.

3. The under-platform ladder mechanical stop device according to claim 2, wherein the bottom plate is fixedly connected with a stop block, and the stop block is movably abutted against the ejector rod.

4. A mechanical stopping device under a platform ladder according to claim 3, wherein the back of the bottom plate is a mounting surface, and a backing plate is arranged on the mounting surface.

5. The mechanical stopping device under a platform ladder according to claim 4, wherein the upper end of the ejector rod is fixedly connected with a pull plate.

6. The mechanical stopping device under a platform ladder according to claim 5, wherein the locking piece comprises a guy rope and a fixed pulley, the fixed pulley is arranged on the bottom plate, the upper end of the guy rope is fixed on the upper portion of the ejector rod, and the lower end of the guy rope is turned through the fixed pulley.

7. The under-landing-ladder mechanical stop device of claim 6, wherein the locking member further comprises a hook mounted on the elevator frame opposite the base, and wherein a rope tensioner is provided at the lower end of the pull rope to be hooked to the hook.

8. The under-platform ladder mechanical stop device according to claim 7, wherein the base is provided with a switch in movable connection with the ejector rod.