CN117446386A - Safety device for elevator - Google Patents

Abstract

The invention provides a safety device for a hoist, comprising: the first stop component is arranged on the elevator platform, the second stop component is adjacent to the first stop component and is arranged on the cross beam of the elevator frame, and the driving component is used for driving the first stop component and the second stop component; the first stop assembly comprises a first baffle plate and a first swinging connecting rod group, the first baffle plate horizontally extends and can vertically lift or fall relative to the elevator, and the first baffle plate is connected to the elevator platform through the first swinging connecting rod group; the second stop assembly comprises a second baffle plate and a second swinging connecting rod group, the second baffle plate horizontally extends and can vertically lift or fall relative to the elevator frame beam, and the second baffle plate is connected to the elevator frame beam through the second swinging connecting rod group; the drive assembly includes a drive motor disposed at the elevator platform, a transmission assembly that transmits power to the first stop assembly, and a linkage assembly that transmits power from the first stop assembly to the second stop assembly.

Description

Safety device for elevator

Technical Field

The invention relates to the field of storage mechanical equipment, in particular to a safety device for a lifter.

Background

In the existing three-dimensional storage solution, a three-dimensional storage mode of matching the four-way shuttle with the elevator is gradually mainstream, but when the four-way shuttle and the elevator work cooperatively, the position of an inlet and an outlet on the elevator is not provided with a stop mechanism, so that under the condition that the four-way shuttle is not aligned with a goods shelf rail when the elevator platform is replaced, due to the reasons of human misoperation or vehicle out of control, the four-way shuttle falls off from the goods shelf or the elevator platform directly, and economic loss and potential safety hazard can be caused.

In the prior art, an electromagnetic switch is generally adopted to drive a lug to serve as a blocking component to prevent falling, but the electromagnetic device sometimes fails due to electromagnetic interference or other reasons, so that the electromagnetic device is relatively large in safety and hidden. There is a need for a more reliable structure or means to prevent a shuttle from falling.

Disclosure of Invention

In view of the above, the present invention provides a safety device for a hoist.

According to one aspect of the present application, a safety device for a hoisting machine is presented, the safety device comprising: the first stop component is arranged on the elevator platform, the second stop component is adjacent to the first stop component and is arranged on the cross beam of the elevator frame, and the driving component is used for driving the first stop component and the second stop component; the first stop assembly comprises a first baffle plate and a first swinging connecting rod group, the first baffle plate horizontally extends and can vertically lift or fall relative to the elevator, and the first baffle plate is connected to the elevator platform through the first swinging connecting rod group; the second stop assembly comprises a second baffle plate and a second swinging connecting rod group, the second baffle plate horizontally extends and can vertically lift or fall relative to the elevator frame beam, and the second baffle plate is connected to the elevator frame beam through the second swinging connecting rod group; the drive assembly includes a drive motor disposed at the elevator platform, a transmission assembly that transmits power to the first stop assembly, and a linkage assembly that transmits power from the first stop assembly to the second stop assembly.

In one embodiment of the safety device of the present disclosure, the first swing link set includes a first left swing arm and a first right swing arm having upper ends for pivotally connecting both ends of the first barrier, lower ends of the first left swing arm and the first right swing arm being pivotally connected to a first left support and a first right support on the elevator platform;

the second swinging connecting rod group comprises a second left swinging arm and a second right swinging arm, the upper ends of the second left swinging arm and the second right swinging arm are used for being pivotally connected with the left end and the right end of the second baffle, and the lower ends of the second left swinging arm and the second right swinging arm are both pivotally connected to a second left support and a second right support which are positioned on a cross beam of the frame of the elevator.

Preferably, the linkage assembly comprises a first connecting plate arranged in the middle of the first baffle plate and a second connecting plate arranged in the middle of the second baffle plate; the inner side of the first connecting plate is fixed to the first baffle plate and is provided with a pivot connected with the transmission assembly; the outer side of the first connecting plate is provided with a linkage convex shaft protruding towards the second connecting plate; the inner side of the second connecting plate is provided with a vertically arranged guide groove matched with the linkage convex shaft, and the guide groove is a guide groove with open top and bottom.

In a preferred embodiment, the guide groove is a left and right vertical guide rail protruding toward the interlocking male shaft and sandwiching it.

In a preferred embodiment according to the present application, the safety device comprises a first stop assembly arranged on the other side of the elevator platform and a second stop assembly of the cross beam on the other side of the elevator frame.

Optionally, the drive assembly includes a plurality of drive rods disposed on the elevator platform.

In a preferred embodiment of the safety device, at least one of the second left swing arm and the second right swing arm of the second swing link set is provided with a biasing spring to maintain the raised blocking state of the second barrier.

The application provides a safety device for lifting machine can be when lifting platform is not in place, and the direct effectual dolly that has prevented dashes out from goods shelves or lifting machine platform in, drops, effectually eliminates the potential safety hazard, avoids unnecessary economic loss.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.

It will be appreciated by those skilled in the art that the objects and advantages that can be achieved with the present invention are not limited to the above-described specific ones, and that the above and other objects that can be achieved with the present invention will be more clearly understood from the following detailed description.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate and together with the description serve to explain the invention. The drawings are merely schematic and are not drawn to scale, but are merely intended to illustrate the principles of the invention. Corresponding parts in the drawings may be exaggerated, i.e. made larger relative to other parts in an exemplary device actually manufactured according to the present invention, for convenience in showing and describing some parts of the present invention. In the drawings:

FIG. 1 is a schematic perspective view of one embodiment of a safety device for a hoist according to the present disclosure;

FIG. 2 is a schematic top view of one embodiment of a security device according to the present disclosure;

FIG. 3 is an enlarged partial schematic view of one embodiment of a security device according to the present disclosure;

FIG. 4 is an enlarged partial top view schematic illustration of one embodiment of a safety device according to the present disclosure, showing a first stop assembly and a second stop assembly;

FIG. 5 illustrates a bottom view of the first and second stop assemblies of FIG. 4;

FIG. 6 is another partial enlarged perspective schematic view of a safety device according to the present disclosure, showing a linkage assembly;

fig. 7 is a detailed enlarged schematic view of a safety device according to the present disclosure, showing a linkage lobe in a linkage assembly.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings. The exemplary embodiments of the present invention and their descriptions herein are for the purpose of explaining the present invention, but are not to be construed as limiting the invention.

It should be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and/or processing steps closely related to the solution according to the present invention are shown in the drawings, while other details not greatly related to the present invention are omitted.

It should be emphasized that the term "comprises/comprising" when used herein is taken to specify the presence of stated features, elements, steps or components, but does not preclude the presence or addition of one or more other features, elements, steps or components. The terms of orientation such as "upper", "lower", "left" and "right" appearing in the present specification are relative to the orientation of the position shown in the drawings; the term "coupled", unless expressly stated otherwise, may refer not only to a direct connection, but also to an indirect connection in the presence of an intermediate. The direct connection is that the two parts are connected without intermediate parts, and the indirect connection is that the two parts are connected with other parts.

Hereinafter, a safety device according to the present disclosure will be described in detail with reference to the embodiments shown in the drawings.

Fig. 1 shows a schematic perspective view of one embodiment of a safety device for a hoisting machine according to the disclosure. Located at the top of the picture in this view is a four-way shuttle for handling cargo, located in the rails of the warehouse levels, and the elevator platform moves up and down within the elevator frame to reach each warehouse level to handle the four-way shuttle. When the elevator platform is level with the warehouse layer track, the four-way shuttle can go in and out of the elevator platform. If the stop mechanism is not arranged, when the elevator is not in place, the four-way shuttle is easy to fall to the elevator frame if the control is faulty, so that the loss is caused. It is to be understood that the four-way shuttle in this disclosure is exemplary only and that the hoist may be used to handle other vehicles or goods that are able to enter the hoist platform.

Fig. 2 is a schematic top view of one embodiment of a security device according to the present disclosure, and fig. 3 shows a schematic enlarged partial view of one embodiment of the security device. With reference to the figures, the elevator frame and the elevator platform are provided with safety devices according to the application. The safety device includes: the elevator assembly includes a first stop assembly 100 mounted to an elevator platform 400, a second stop assembly 200 mounted to an elevator frame rail 400 adjacent to the first stop assembly, and a drive assembly 300 for driving the first and second stop assemblies. The first stop assembly 100 includes a first dam 110 and a first swing link 120, the first dam 110 extending horizontally and being vertically raisable or lowerable relative to the elevator, the first dam 110 being connected to the elevator platform 400 by the first swing link 120.

In the example shown in the drawings, the first swing link set 120 includes a first left swing arm 121 and a first right swing arm 122 having upper ends for pivotally connecting both ends of the first barrier 110, and lower ends of the first left swing arm 121 and the first right swing arm 122 are pivotally connected to a first left support 123 and a first right support 124 on the hoist platform 400.

The second stopper assembly 200 includes a second barrier 210 and a second swing link set 220, the second barrier extending horizontally and being vertically raisable or lowerable with respect to the hoist frame rail 500, the second barrier 210 being connected to the hoist frame rail 200 through the second swing link set 220; the drive assembly 300 includes a drive motor 310 disposed at the elevator platform, a transmission assembly 320 that transmits power to the first stop assembly, and a linkage assembly 330 that transmits power from the first stop assembly to the second stop assembly.

The second swing link set 220 includes a second left swing arm 221 and a second right swing arm 222 having upper ends for pivotally connecting left and right ends of the second barrier 210, and lower ends of the second left swing arm 221 and the second right swing arm 222 are pivotally connected to a second left support 223 and a second right support 224 located at the hoist frame cross member 500.

Wherein each support for installing the first baffle 110 and the second baffle 210 is located below, each swing arm extends upwards, and when the swing arm inclines under the action of the transmission assembly or the linkage assembly, the first baffle 110 and the second baffle 210 are driven to move downwards until the swing arm is lower than the lower edge of the vehicle body of the carrier or the four-way shuttle, so that the carrier is allowed to pass through.

Preferably, the linkage assembly 330 includes a first connection plate 331 disposed at a middle portion of the first barrier 110 and a second connection plate 332 disposed at a middle portion of the second barrier 210. The inner side of the first connection plate 331 is fixed to the first barrier 110 and is provided with a pivot 111 connected to the transmission assembly 320; the first connection plate 110 is provided at an outer side thereof with a link boss 112 protruding toward the second connection plate 210. The second connecting plate 210 is provided at an inner side thereof with a vertically arranged guide groove 212 cooperating with the link boss 112, and the guide groove 212 is a guide groove with open top and bottom.

When the first left swing arm 121 and the first right swing arm 122 of the first swing link set are in a substantially vertical state, the first barrier is in a highest position, i.e., in a raised state relative to the hoist platform, in a blocking state. The first blind is set to a height above the elevator track and sufficient to block a shuttle or other carrier from entering the elevator frame.

Accordingly, when the second left swing arm 221 and the second right swing arm 222 of the second swing link set 220 are in a substantially vertical state, the second barrier is in the highest position, i.e., in a blocking state with respect to the raised state of the hoist platform. Preferably, the second baffle is configured to be in a blocking state when not mated with the first blocking assembly. The height of the second blind is set to be higher than the carrier travel rail and sufficient to block the shuttle or other carrier from entering the elevator frame. The first baffle and the second baffle are in a lifting state under the conventional condition, namely when the lifting machine is not in place.

Fig. 4-7 are partial enlarged schematic views of one embodiment of a safety device according to the present disclosure, fig. 5 showing a bottom view of the first and second stop assemblies of fig. 4; FIG. 6 illustrates a linkage assembly; fig. 7 is a detailed enlarged schematic view of a safety device according to the present disclosure, showing a linkage lobe in a linkage assembly. Fig. 7 shows the linkage assembly in a state in which it has not been mated in place, with the second stop assembly positioned above and the first stop assembly positioned below. Wherein the linkage protruding shaft 331 is not yet clamped into the guide groove 212 on the inner side of the second connecting plate.

In a preferred embodiment, the guide channel is left and right vertical guide rails 212A, 212B projecting toward and sandwiching the linkage boss 112.

In a preferred embodiment according to the present application, the safety device comprises a first stop assembly arranged on the other side of the elevator platform and a second stop assembly of the cross beam on the other side of the elevator frame.

Optionally, the drive assembly comprises a plurality of drive bars arranged at the elevator platform.

In a preferred embodiment of the safety device, at least one of the second left and right swing arms of the second swing link set is provided with a biasing spring (not shown) that puts the swing arm in a vertical state to maintain the raised blocking state of the second barrier.

When the elevator platform is aligned with the goods shelf rail, and the four-way car is required to enter and exit the elevator operation, the first baffle plate of the first stop assembly and the second baffle plate of the second stop assembly fall down to enter a release state.

The driving motor in the driving assembly rotates to drive each connecting rod in the transmission assembly to rotate, power is transmitted to the pivot 111 in the middle of the first baffle plate 110, and the pivot 111 is pulled to the left or pushed to the right, so that the pivot 111 moves transversely, and the first baffle plate is pulled to swing downwards. The lateral movement of the pivot correspondingly pulls the first flap 110 to tilt to one side. Because the both ends of first baffle are connected in the upper end of first left swing arm and first right swing arm, only can move down under the constraint of pendulum rod when first baffle slope, get into the state of letting pass.

The first connection plate 331 has disposed thereon a link boss 112 which is embedded in the guide groove 212 of the second connection plate. When the first baffle moves transversely, the first connecting part is driven to move synchronously, and the linkage protruding shaft drives the second connecting plate to move transversely through the guide groove while moving transversely, so that the second baffle is driven to swing downwards, and the second baffle also enters a release state.

The first and second stop assemblies are linked by a linkage boss and guide slot 212 in the linkage assembly 330. When the elevator platform is aligned with the goods shelf track, the linkage protruding shaft enters the clamping groove, and when the second stop component obtains power transmitted by the linkage protruding shaft, the baffle plates in the two stop components are driven to swing downwards to be separated from the stop state and enter the release state. Preferably, the linkage male shaft 112 is sleeved with rollers.

The second stop assembly is arranged at each beam of the lifting well frame of the helicopter, which corresponds to the track height of each storage layer; the second stop assembly stops in a normal state, i.e., when the elevator platform is not aligned with the shelf rail or when no vehicle is required to enter or exit the elevator. In the stop state, the trolley is blocked by the mechanism and cannot enter and exit the elevator, so that a protection effect is achieved, and when the trolley needs to enter and exit the elevator, the stop mechanism falls down, so that the trolley can normally enter and exit the elevator.

When the elevator platform is aligned with the shelf rail, the clamping grooves are combined, and the second stop assembly is mounted on the elevator upright frame and used for blocking four-way vehicles entering the elevator from the shelf. The first stop component is arranged on the elevator platform and used for blocking the four-way vehicle coming out of the elevator platform.

The first and second stops in the safety device according to the present application are maintained in a blocking condition by means of a biasing spring within the assembly when the elevator platform is misaligned with the pallet track or when a four-way car is not needed to enter and exit the elevator.

When the elevator platform is aligned with the goods shelf rail, and the four-way vehicle is required to enter and exit the elevator operation, the driving motor rotates to drive the connecting rod assembly to transmit power to the connecting plate, and the baffle is driven to swing downwards, so that the baffle is separated from the stop state and enters the release state.

According to the technical scheme, the problems that due to human misoperation, vehicle out of control and the like, a four-way shuttle is directly fallen from a goods shelf or a lifting machine platform, so that economic loss and potential safety hazards are caused are solved; the intelligent three-dimensional warehousing system is more stable and safer.

In this disclosure, features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments and/or in combination with or instead of the features of the other embodiments.

While the foregoing has shown and described the basic underlying principles and features of the invention, it is to be understood that the invention is not limited to those precise embodiments, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope of the invention as defined in the appended claims.

Claims (7)

1. A safety device for a hoisting machine, the safety device comprising:

the elevator comprises a first stop component, a second stop component, a driving component and a driving component, wherein the first stop component is installed on an elevator platform, the second stop component is adjacent to the first stop component and is installed on a cross beam of an elevator frame, and the driving component is used for driving the first stop component and the second stop component;

the first stop assembly comprises a first baffle plate and a first swinging connecting rod group, the first baffle plate horizontally extends and can vertically lift or fall relative to the elevator, and the first baffle plate is connected to the elevator platform through the first swinging connecting rod group;

the second stop assembly comprises a second baffle plate and a second swinging connecting rod group, the second baffle plate horizontally extends and can vertically lift or fall relative to the elevator frame beam, and the second baffle plate is connected to the elevator frame beam through the second swinging connecting rod group;

the drive assembly includes a drive motor disposed at the elevator platform, a transmission assembly that transmits power to the first stop assembly, and a linkage assembly that transmits power from the first stop assembly to the second stop assembly.

2. The safety arrangement according to claims 1 to, wherein the first swing link set comprises a first left swing arm and a first right swing arm having upper ends for pivotally connecting both ends of the first barrier, the lower ends of the first left swing arm and the first right swing arm being pivotally connected to a first left support and a first right support on the elevator platform; the second swinging connecting rod group comprises a second left swinging arm and a second right swinging arm, the upper ends of the second left swinging arm and the second right swinging arm are used for being connected with the left end and the right end of the second baffle in a pivot mode, and the lower ends of the second left swinging arm and the second right swinging arm are connected with a second left support and a second right support which are positioned on a frame beam of the elevator in a pivot mode.

3. The safety arrangement of claim 1, wherein the linkage assembly includes a first web disposed in a middle portion of the first barrier and a second web disposed in a middle portion of the second barrier; the inner side of the first connecting plate is fixed to the first baffle plate and is provided with a pivot connected with the transmission assembly; a linkage convex shaft protruding towards the second connecting plate is arranged on the outer side of the first connecting plate; the inner side of the second connecting plate is provided with a guide groove which is matched with the linkage convex shaft and is vertically arranged, and the guide groove is a guide groove with open top and bottom.

4. A safety device according to claim 3, wherein the guide groove is a left and right vertical guide rail projecting toward the interlocking male shaft and sandwiching it.

5. Safety arrangement according to one of claims 1 to 4, characterized in that the safety arrangement comprises a first stop assembly arranged on the other side of the elevator platform and a second stop assembly of a cross beam on the other side of the elevator frame.

6. The safety arrangement according to one of claims 1 to 4, characterized in that the transmission assembly comprises a plurality of transmission rods arranged at the hoisting machine platform.

7. The safety arrangement according to one of claims 1 to 4, wherein at least one of the second left swing arm and the second right swing arm of the second swing link is provided with a biasing spring to maintain the raised blocking state of the second flap.