CN112027851A

CN112027851A - Elevator safety device

Info

Publication number: CN112027851A
Application number: CN202011017251.2A
Authority: CN
Inventors: 叶九建; 王阳阳; 蔡练练; 何建伟; 介石磊
Original assignee: Luoyang Zhongli Technology Co ltd
Current assignee: Luoyang Zhongli Technology Co ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2020-12-04

Abstract

The invention discloses an elevator safety device which comprises an elevator cage, connecting ropes, lifting ropes and connecting blocks, wherein the connecting ropes are fixedly connected to the top of the elevator cage, the connecting blocks are fixedly connected to the upper ends of the connecting ropes, the connecting blocks are fixedly arranged at the lower ends of the lifting ropes, the elevator safety device also comprises two pulling ropes and a protection mechanism, and one end of each pulling rope is fixedly arranged on the connecting block. The invention has simple structure, small volume, low production cost, convenient installation and maintenance and more convenient installation of the elevator in use.

Description

Elevator safety device

Technical Field

The invention relates to the technical field of elevator safety, in particular to an elevator safety device.

Background

Along with the development of city construction and the improvement of life quality of people, when residents can enjoy good land public transportation service when going out, the residents are eager to obtain convenient vertical transportation in residences. Therefore, in recent years, the number of residential elevators has increased dramatically. The residential elevator is a necessary travel tool for the common people to go out as a special vehicle, unprecedented convenience is brought to living of people, safety and reliability of operation of the residential elevator are generally concerned problems of many people, the quality of the residential elevator is good and bad, and the quality of life of the common people is directly influenced. Residential elevators are therefore of particular interest to people.

As the competition of the residential elevator manufacturing and installation market is more and more intense, the number of elevators to be installed is increased sharply due to the expansion of the elevator market demand in recent years, however, the continuous elevator safety incidents seriously threaten the life safety of users, and people are surprised by the smelly elevator safety accidents occasionally.

The elevator is taken as vertical traffic equipment, or because parts are worn out, or because improper operation is performed during installation and maintenance, and equipment failure is inevitable. However, the occurrence of elevator safety accidents is often related to the wrong way of thinking and handling of elevator faults. Unlike natural disasters, elevator safety accidents do not occur randomly, but are caused by wrong thinking ways and wrong behaviors of people.

Chinese patent publication No. CN103922205B discloses an elevator safety device, which relates to the technical field of elevator safety. The pair of perforated supporting plates are vertically arranged in parallel, the through holes in the perforated supporting plates are in one-to-one correspondence, a sliding bolt guide rail is vertically arranged on the right side of one perforated supporting plate, a pair of sliding bolts are matched on the sliding bolt guide rail through sliding bolt lifting ropes, a plurality of movable telescopic steel bars are uniformly and horizontally arranged between the sliding bolt lifting ropes and the other perforated supporting plate, the telescopic steel bars sequentially penetrate through the corresponding through holes in the pair of perforated supporting plates, springs are sleeved on the outer walls of the telescopic steel bars between the perforated supporting plates and the sliding bolt lifting ropes and fixed to the right ends of the telescopic steel bars, and the lower ends of the sliding bolt lifting ropes are connected with the power output end of a motor. However, this device has the following disadvantages: the device needs to carry out the covering installation to two sides of elevator well, leads to the volume great, and then installation and maintenance are all inconvenient, and can't satisfy to the elevator that has used and install additional.

Disclosure of Invention

The present invention has been made to solve the above problems, and an object of the present invention is to provide an elevator safety device.

The invention realizes the purpose through the following technical scheme:

the elevator safety device comprises an elevator cage, connecting ropes, lifting ropes and connecting blocks, wherein the top of the elevator cage is fixedly connected with the connecting ropes, the upper end of each connecting rope is fixedly connected with the connecting blocks, the connecting blocks are fixedly arranged at the lower ends of the lifting ropes and further comprise a traction rope and a protection mechanism, the traction ropes are arranged in two numbers, one end of each traction rope is fixedly arranged on the connecting blocks, the lower ends of the traction ropes are connected with the protection mechanism, the protection mechanism is arranged at the tops of two sides of the elevator cage, so that the lifting ropes can drive the connecting ropes to drive the elevator cage to lift under the traction of the lifting ropes and the potential energy of the elevator cage, the protection mechanism comprises a mounting plate, a guide ring, a protection component and a guide component, the mounting plate is connected with the tops of two sides of the elevator cage through bolts, two protection components and two guide rings are welded on one side face of the elevator cage far away from the mounting plate The guiding ring is positioned at the top between the protective components, the guiding component is arranged at the bottom of the protective components, so that the traction rope can be guided through the guiding ring to prevent friction between the traction rope and an elevator cage, the protective components comprise fixed blocks, side plates, sliding grooves, rotating rods, limiting gears, folding racks and driving components, the fixed blocks are connected with the mounting plates in a welding manner, the upper half parts of one side surfaces of the fixed blocks, far away from the mounting plates, are inclined surfaces protruding outwards, the side surfaces of the fixed blocks, far away from the mounting plates, are welded with the side plates and are connected with the folding racks through bolts, the folding racks are positioned between the side plates, the sliding grooves are formed in the side plates, the driving components are arranged at the bottoms of the inner sides of the sliding grooves, and the rotating rods are movably connected with the inner sides, the limiting gear is connected with the outer side of the rotating rods through a key, the limiting gear is meshed with the folding type rack, a connecting rod is welded between the two rotating rods, the lower end of the traction rope penetrates through the guide ring and bypasses the guide component which is fixedly connected to the connecting rod, the connecting rod between the rotating rods can be pulled through the traction rope, the rotating rods are positioned at a certain position on the inner side of the sliding chute under the action of the driving component, so that the whole protection mechanism is in a relatively static state when the whole device is in normal operation, when the traction rope is broken, the traction rope is not pulled by the traction rope any more, the driving component drives the rotating rods to ascend, the rotating rods drive the limiting gear to ascend, and in the process, the limiting gear moves to one side away from the elevator cage under the guiding action of the folding type rack, until limiting gear and well wall contact, well wall restriction limiting gear outwards remove, and the whereabouts drive limiting gear of elevator railway carriage or compartment outwards removes, and then makes the elevator railway carriage or compartment stop the whereabouts, and when having realized preventing the lifting rope fracture, the condition that the elevator railway carriage or compartment falls takes place.

Preferably, the guide assembly is including installation piece, bracing piece, leading pulley, the installation piece welding is in the curb plate below, be connected with through the bearing between the installation piece the bracing piece, the bracing piece outside has through the key-type connection leading pulley sets up like this and can pass through installation piece fixed stay pole, bracing piece fixed leading pulley, and leading pulley leads the haulage rope for the haulage rope pulls the connecting rod between the dwang downwards.

Preferably, an annular groove is formed in the outer side of the guide pulley, and the central cross section of the annular groove is coplanar with the central axis of the guide ring, so that the traction rope can be prevented from being separated from the guide pulley.

Preferably, drive assembly includes spring, slip kicking block, the welding of spring lower extreme is in the inboard bottom of spout, there is at the spring top through the screw connection slip kicking block, just slip kicking block still sliding connection be in the spout is inboard, sets up like this and can be when the lifting rope fracture, and the spring promotes the slip kicking block, and the slip kicking block promotes dwang rebound.

Preferably, the top surface of the sliding ejector block is provided with a semicircular groove with a smooth surface, the radius of the semicircular groove is the same as that of the rotating rod, and the friction between the sliding ejector block and the rotating rod is reduced by the arrangement.

Preferably, there is magnet in elevator railway carriage or compartment top central authorities through the screw connection, magnet is right the connecting block has the adsorption effort, sets up like this and to pass through the magnet adsorption connecting block for the connecting block is close to magnet, and then not only when the lifting rope splits, and the connecting block is close to magnet, and then makes the haulage rope lose traction function to the connecting rod between the dwang, can also be when elevator hoist damages, makes the connecting block be close to magnet, and then makes the haulage rope lose traction function to the connecting rod between the dwang, and then prevents that the elevator railway carriage or compartment from falling, has improved the practicality.

Has the advantages that:

1. the device can pull a connecting rod between rotating rods through a traction rope, and the rotating rod is positioned at a certain position on the inner side of the sliding chute under the action of a driving assembly, so that when the whole device is in normal operation, the whole protection mechanism is in a relatively static state, when the lifting rope is broken, the traction rope is not pulled by the lifting rope, the driving assembly drives the rotating rod to ascend, the rotating rod drives the limiting gear to ascend, the limiting gear moves to one side far away from the elevator cage under the guiding action of the folding rack in the process until the limiting gear is contacted with the wall of the hoistway, the wall of the hoistway limits the limiting gear to move outwards, the falling of the elevator cage drives the limiting gear to move outwards, the elevator cage stops falling, and the situation that the elevator cage falls when the lifting rope is broken is prevented;

2. the device has simple structure, small volume, low production cost, convenient installation and maintenance and convenient installation and installation of the elevator in use.

Additional features of the invention and advantages thereof will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

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 specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view showing the construction of an elevator safety device according to the present invention;

fig. 2 is a schematic structural view of a protection mechanism of an elevator safety device according to the present invention;

fig. 3 is a front view of a guard mechanism of an elevator safety device according to the present invention;

fig. 4 is a cross-sectional view a-a of a guard mechanism of an elevator safety device according to the present invention;

fig. 5 is a B-B sectional view of a guard mechanism of an elevator safety device according to the present invention.

The reference numerals are explained below:

1. an elevator cage; 2. connecting ropes; 3. a lifting rope; 4. connecting blocks; 5. a hauling rope; 6. a protection mechanism; 7. a magnet; 61. mounting a plate; 62. a guide ring; 63. a guard assembly; 64. a guide assembly; 631. a fixed block; 632. a side plate; 633. a chute; 634. rotating the rod; 635. a limit gear; 636. a fold-type rack; 637. a drive assembly; 6371. a spring; 6372. sliding the ejector block; 641. mounting blocks; 641. a support bar; 643. a guide pulley.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

As shown in figures 1-5, an elevator safety device comprises an elevator cage 1, connecting ropes 2, lifting ropes 3 and connecting blocks 4, wherein the top of the elevator cage 1 is fixedly connected with the connecting ropes 2, the upper ends of the connecting ropes 2 are fixedly connected with the connecting blocks 4, the connecting blocks 4 are fixedly arranged at the lower ends of the lifting ropes 3, the elevator safety device also comprises two lifting ropes 5 and protective mechanisms 6, one ends of the two lifting ropes 5 are fixedly arranged on the connecting blocks 4, the lower ends of the lifting ropes 5 are connected with the protective mechanisms 6, and the protective mechanisms 6 are arranged at the tops of two sides of the elevator cage 1, so that the lifting ropes 3 drive the connecting ropes 2 to drive the elevator cage 1 to lift under the traction of the lifting ropes 3 and the potential energy of the elevator cage 1, the lifting function of the elevator cage 1 is realized, the protective mechanisms 6 comprise mounting plates 61, guide rings 62, protective components 63 and guide components 64, the mounting plates 61 are connected at the tops, one side of the mounting plate 61, which is far away from the elevator cage 1, is welded with two protection components 63 and a guide ring 62, the guide ring 62 is positioned at the top between the protection components 63, the bottom of the protection component 63 is provided with a guide component 64, so that the traction rope 5 can be guided through the guide ring 62, and friction between the traction rope 5 and the elevator cage 1 is prevented, the protection component 63 comprises a fixed block 631, a side plate 632, a sliding groove 633, a rotating rod 634, a limiting gear 635, a folding rack 636 and a driving component 637, the fixed block 631 is welded with the mounting plate 61, the upper half part of one side of the fixed block 631, which is far away from the mounting plate 61, is an outward protruding inclined surface, one side of the fixed block 631, which is far away from the mounting plate 61, is welded with the side plate 632 and is connected with the folding rack 636 through a bolt, the folding rack 636 is, the inside swing joint of spout 633 has dwang 634, the dwang 634 outside has restriction gear 635 through the key joint, and restriction gear 635 and the meshing of type rack 636 are connected, the welding has the connecting rod between two dwang 634, the lower extreme of haulage rope 5 passes guide ring 62, and it is on this connecting rod to bypass guide assembly 64 fixed connection, so set up can through haulage rope 5 pull the connecting rod between the dwang 634, and under drive assembly 637's effect, make dwang 634 be in the inboard certain position of spout 633, and then make the whole device during normal operation, whole protection machanism 6 is in the state of relative stillness, when the lifting rope 3 breaks, at this moment haulage rope 5 is not being in the traction of lifting rope 3, drive assembly 637 drives dwang 634 to rise at this moment, dwang 634 drives restriction gear 635 to rise, in this process restriction gear 635 is under the guide effect of type rack 636, the guide assembly 64 comprises a mounting block 641, a support rod 642 and a guide pulley 643, wherein the mounting block 641 is welded below a side plate 632, a support rod 642 is connected between the mounting blocks 641 through a bearing, the outer side of the support rod 642 is connected with the guide pulley 643 through a key, the support rod 642 can be fixed through the mounting block 641, the guide pulley 643 fixes the guide pulley 643, the guide pulley 643 guides the traction rope 5, the traction rope 5 downwards draws a connecting rod between rotating rods 634, and an annular groove is formed in the outer side 643 of the guide pulley, and the central cross section of the annular groove is coplanar with the central axis of the guide ring 62, so that the traction rope 5 can be prevented from being separated from the guide pulley 643, the driving component 637 comprises a spring 6371 and a sliding top block 6372, the lower end of the spring 6371 is welded at the bottom of the inner side of the sliding groove 633, the top of the spring 6371 is connected with the sliding top block 6372 through a screw, and the sliding top block 6372 is also connected with the inner side of the sliding groove 633 in a sliding way, so that when the lifting rope 3 is broken, the spring 6371 pushes the sliding top block 6372, the sliding top block 6372 pushes the rotating rod 634 to move upwards, the top surface of the sliding top block 6372 is provided with a semi-circular groove with a smooth surface, the semi-circular groove has the same radius as that of the rotating rod 634, so that the friction between the sliding top block 6372 and the rotating rod 634 is reduced, the top center of the elevator car 1 is connected with, make connecting block 4 be close to magnet 7, and then not only when lifting rope 3 splits, connecting block 4 is close to magnet 7, and then makes haulage rope 5 lose traction function to the connecting rod between the bull stick 634, can also be when elevator hoist damages, makes connecting block 4 be close to magnet 7, and then makes haulage rope 5 lose traction function to the connecting rod between the bull stick 634, and then prevents that elevator railway carriage or compartment 1 from falling, has improved the practicality.

In the above structure, when the device is in normal use, the connecting rod between the rotating rods 634 can be pulled by the pulling rope 5, and under the action of the driving component 637, the rotating rod 634 is located at a certain position inside the sliding groove 633, so that when the whole device is in normal operation, the whole protection mechanism 6 is in a relatively static state, when the lifting rope 3 is broken, the pulling rope 5 is not pulled by the lifting rope 3, at this time, the driving component 637 drives the rotating rod 634 to ascend, the rotating rod 634 drives the limiting gear 635 to ascend, in this process, the limiting gear 635 moves to one side away from the elevator cage 1 under the guiding action of the folding rack 636, until the limiting gear 635 contacts with the hoistway wall, the hoistway wall limiting gear 635 moves outwards, the falling of the elevator cage 1 drives the limiting gear 635 to move outwards, and further the elevator cage 1 stops falling, when the elevator crane is damaged, the magnet 7 can be used for adsorbing the connecting block 4, so that the connecting block 4 is close to the magnet 7, and further the connecting rod between the rotating rods 634 is not dragged by the traction rope 5, at the moment, the driving component 637 drives the rotating rods 634 to ascend, the rotating rods 634 drive the limiting gear 635 to ascend, in the process, the limiting gear 635 moves towards one side away from the elevator cage 1 under the guiding action of the folding rack 636, until the limiting gear 635 is in contact with the wall of the hoistway, the limiting gear 635 moves outwards under the action of the falling of the elevator cage 1, and the limiting gear 635 moves outwards under the action of the falling of the elevator cage 1, so that the elevator cage 1 stops falling.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An elevator safety device comprises an elevator cage (1), a connecting rope (2), a lifting rope (3) and a connecting block (4), wherein the connecting rope (2) is fixedly connected to the top of the elevator cage (1), the connecting block (4) is fixedly connected to the upper end of the connecting rope (2), and the connecting block (4) is fixedly installed at the lower end of the lifting rope (3), and is characterized in that: the elevator cage is characterized by further comprising two traction ropes (5) and a protection mechanism (6), wherein one ends of the two traction ropes (5) are fixedly installed on the connecting block (4), the lower end of each traction rope (5) is connected with the protection mechanism (6), the protection mechanism (6) is arranged on the tops of two sides of the elevator cage (1), the protection mechanism (6) comprises an installation plate (61), a guide ring (62), a protection component (63) and a guide component (64), the installation plate (61) is connected to the tops of two sides of the elevator cage (1) through bolts, two protection components (63) and two guide rings (62) are welded on one side face, far away from the elevator cage (1), of the installation plate (61), the guide rings (62) are located at the tops between the protection components (63), the guide components (64) are arranged at the bottoms of the protection components (63), protection component (63) includes fixed block (631), curb plate (632), spout (633), dwang (634), restriction gear (635), book type rack (636), drive assembly (637), fixed block (631) with mounting panel (61) welded connection, just fixed block (631) is kept away from the first half of the side of mounting panel (61) is outside outstanding inclined plane, fixed block (631) is kept away from the side welding of mounting panel (61) have curb plate (632) with have through bolted connection book type rack (636), just book type rack (636) is located between curb plate (632), seted up on curb plate (632) spout (633), spout (633) inboard bottom is provided with drive assembly (637), spout (633) inboard swing joint has dwang (634), the dwang (634) outside has through the key connection there is restriction gear (635), just restriction gear (635) with fold type rack (636) meshing is connected, two the welding has the connecting rod between dwang (634), haulage rope (5) lower extreme passes guide ring (62), and bypass guide subassembly (64) fixed connection is on this connecting rod.

2. An elevator safety apparatus as defined in claim 1, wherein: the guide assembly (64) comprises mounting blocks (641), support rods (642) and guide pulleys (643), the mounting blocks (641) are welded below the side plates (632), the support rods (642) are connected between the mounting blocks (641) through bearings, and the guide pulleys (643) are connected to the outer sides of the support rods (642) through keys.

3. An elevator safety apparatus as defined in claim 2, wherein: an annular groove is formed in the outer side of the guide pulley (643), and the central cross section of the annular groove is coplanar with the central axis of the guide ring (62).

4. An elevator safety apparatus as defined in claim 1, wherein: the driving assembly (637) comprises a spring (6371) and a sliding top block (6372), the lower end of the spring (6371) is welded at the bottom of the inner side of the sliding chute (633), the top of the spring (6371) is connected with the sliding top block (6372) through a screw, and the sliding top block (6372) is also connected inside the sliding chute (633) in a sliding manner.

5. An elevator safety apparatus as defined in claim 4, wherein: the top surface of the sliding top block (6372) is provided with a semicircular groove with a smooth surface, and the radius of the semicircular groove is the same as that of the rotating rod (634).

6. An elevator safety apparatus as defined in claim 1, wherein: the center of the top of the elevator cage (1) is connected with a magnet (7) through a screw, and the magnet (7) has adsorption acting force on the connecting block (4).