CN114852818A

CN114852818A - Elevator guide shoe with anti-falling function

Info

Publication number: CN114852818A
Application number: CN202210393119.4A
Authority: CN
Inventors: 许应龙
Original assignee: Nantong Jiangzhong Photoelectricity Co ltd
Current assignee: Nantong Jiangzhong Photoelectricity Co ltd
Priority date: 2022-04-15
Filing date: 2022-04-15
Publication date: 2022-08-05
Anticipated expiration: 2042-04-15
Also published as: CN114852818B

Abstract

The invention discloses an elevator guide shoe with an anti-falling function, belonging to the field of elevator accessories, and the elevator guide shoe with the anti-falling function comprises a mounting seat, wherein one side of the mounting seat is provided with an N-shaped bracket, a wear-resistant pad matched with a guide rail is fixed in the N-shaped bracket, the top and the bottom of the N-shaped bracket are respectively provided with two groups of anti-falling devices which are oppositely arranged, each anti-falling device comprises a slide block, the N-shaped bracket is provided with a slide groove corresponding to the slide block, a tension spring is clamped and fixed between the slide groove and the slide block, one end of the slide block is rotatably connected with an eccentric wheel through a rotating shaft, one side of the eccentric wheel is fixed with an anti-falling pad, the inner wall of the N-shaped bracket is provided with a cylindrical groove, a gravity ball is slidably connected in the cylindrical groove, the upper and lower ends of the gravity ball are both fixed with slide bars, and a buffer spring is clamped between the gravity ball and the N-shaped bracket, high safety, market prospect and suitability for popularization.

Description

Elevator guide shoe with anti-falling function

Technical Field

The invention relates to the field of elevator accessories, in particular to an elevator guide shoe with an anti-falling function.

Background

With the rapid development of social economy and the rapid improvement of urban construction level in China, a novel city is erected at the speed of a high-rise building like a bamboo shoot in spring after rain, and an elevator facility matched with the novel city is taken as a vertical transportation means for carrying people and goods, and becomes an irreplaceable vehicle. The requirements on the safety and the reliability of the elevator are higher and higher as the building is built higher. When parts such as a traction system, a speed limiter or a steel wire rope of the elevator break down, the car falls, and passengers in the elevator are seriously threatened by life and are subjected to psychological burden. Although there are many anti-falling devices to prevent the elevator from falling when the elevator is in failure, such as a rope clamp, the devices mainly act on the steel wire rope, and when the steel wire rope is broken, the devices cannot achieve the purpose of preventing falling, thereby affecting the anti-falling effect. Therefore, the prior art has the problem that the anti-falling effect is not ideal, and therefore an elevator guide shoe with the anti-falling function is provided to solve the problem.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide an elevator guide shoe with an anti-falling function, which can realize the mutual matching between a gravity ball with a slide bar, a buffer spring and a rubidium magnet and an anti-falling device with an eccentric wheel, a slide block, a tension spring, a ratchet groove and an anti-falling pad, when an elevator is accelerated and descended in use, the gravity ball moves upwards relative to a mounting seat under the action of inertia, the rubidium magnet at the end part of the slide bar is close to a limit plate, so that the rubidium magnet adsorbs the limit plate, the elastic force of the spring piece is overcome, the ratchet groove is separated from a groove structure, the slide block is close to a guide rail under the elastic force action of the tension spring, the eccentric wheels of the anti-falling device are close to each other, on one hand, two symmetrical eccentric wheels are overturned by utilizing friction force, the radius of the eccentric wheels gradually changes, the radius is increased in the overturning process, so that the friction force of the eccentric wheels to the guide rail is increased, the anti-falling device has the advantages that the elevator is effectively prevented from descending, meanwhile, in the process of overturning the eccentric wheel, the anti-falling pad is overturned to be abutted against the guide rail, the friction force is further increased, and the safety is effectively improved.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

An elevator guide shoe with an anti-falling function comprises a mounting seat, wherein an N-shaped support is arranged on one side of the mounting seat, a wear-resistant pad matched with a guide rail is fixed in the N-shaped support, two sets of anti-falling devices which are oppositely arranged are respectively arranged at the top and the bottom of the N-shaped support, each anti-falling device comprises a sliding block, a sliding chute corresponding to the sliding block is arranged on the N-shaped support, a tensioning spring is fixedly clamped between the sliding chute and the sliding block, an eccentric wheel is rotatably connected to one end of the sliding block through a rotating shaft, the anti-falling pad is fixed on one side of the eccentric wheel, a cylindrical groove is formed in the inner wall of the N-shaped support, a gravity ball is slidably connected in the cylindrical groove, sliding rods are fixed at the upper end and the lower end of the gravity ball, a buffer spring is clamped between the gravity ball and the N-shaped support, the buffer spring is sleeved on the sliding rods, and a rubidium magnet is fixed on one side of the sliding rods, which is far away from the gravity ball, the side, opposite to the rubidium magnet, of the sliding block is provided with a ratchet groove, the inner wall of the sliding groove is connected with a limiting plate in a sliding mode, one side of the limiting plate is provided with a groove structure corresponding to the ratchet groove, the other side of the limiting plate is provided with a spring piece, and the limiting plate is of a magnet structure. The invention uses the mutual cooperation between the gravity ball with the slide bar, the buffer spring and the rubidium magnet and the anti-falling device with the eccentric wheel, the slide block, the tension spring, the ratchet groove and the anti-falling pad, when the elevator descends in an accelerating way, the gravity ball moves upwards relative to the mounting seat under the action of inertia, the rubidium magnet at the end part of the slide bar is close to the limit plate, the rubidium magnet adsorbs the limit plate, the rubidium magnet moves downwards against the spring piece, the ratchet groove is separated from the groove structure, the slide block is close to the guide rail under the action of the elasticity of the tension spring, the eccentric wheels of the anti-falling device are close, on one hand, the friction force is utilized to turn over two symmetrical eccentric wheels, the radius of the eccentric wheels is gradually changed, the radius is increased in the turning process, the friction force of the eccentric wheels to the guide rail is increased, the elevator is effectively prevented from descending, on the other hand, the anti-falling pad is turned over to be pressed against the guide rail in the turning over process of the eccentric wheels, further increase frictional force, effectively promoted the security.

Furthermore, the outer contour of the eccentric wheel is of a vortex line structure, the anti-falling pad is arranged at the maximum radius of the eccentric wheel, the anti-falling pad and the wear-resistant pad are of wear-resistant rubber structures, and anti-skid grains are arranged on one sides of the outer walls of the eccentric wheel and the anti-falling pad. Through the structural design of the eccentric wheel with anti-skid grains and the anti-falling pad, when the sliding block is close to the guide rail under the action of the elastic force of the tension spring, the eccentric wheel can effectively contact the guide rail and rotate by utilizing the friction force by combining the descending speed of the elevator.

Further, the tensioning spring is a high-strength anti-fatigue spring, and the tensioning spring has an elastic force for driving the sliding block to be far away from the sliding groove.

Furthermore, the spring piece has elasticity that drives the limiting plate to be close to the slider, the magnetism of limiting plate is different with the magnetism of rubidium magnet, the magnetic attraction of rubidium magnet and limiting plate is greater than the elasticity of spring piece.

Furthermore, the distance between the gravity ball and the upper and lower groups of anti-falling devices is equal when the two buffer springs are in a free state.

Further, when the ratchet groove is matched with the groove structure, the resistance of the sliding block close to the guide rail is smaller than the resistance of the sliding block far away from the guide rail. Through the different limiting plate of magnetism and the structural design of rubidium magnet, the gravity ball receives the inertia effect to move up the back for the mount pad, restores to the original position under buffer spring's effect, and the limiting plate is kept away from to rubidium magnet this moment, and under the effect of spring leaf, the limiting plate jacking resets, makes ratchet groove and groove structure involution again, and the slider has kept the displacement volume this moment, and then makes eccentric wheel press from both sides tight guide rail and not receive the pressure and return and contract, has effectively promoted structural stability and security.

And furthermore, four mounting seats are arranged on each elevator car, the four mounting seats are respectively arranged on two sides of the upper beam and two sides of the bottom of the elevator car, and the two groups of guide rails are symmetrically and vertically fixed on a wall body of a well of a building.

Further, the gravity ball is of a shot structure.

Furthermore, swing joint between mount pad and the N type support, one side symmetry of N type support is equipped with the spliced pole, be equipped with on the mount pad with spliced pole assorted installation buckle.

Furthermore, a buffer rubber sleeve is sleeved on the connecting column. The anti-falling device has the advantages that the structure is simple, the anti-falling function is realized, the response is rapid and timely, the safety is high, the market prospect is realized, and the anti-falling device is suitable for popularization.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) when the elevator is accelerated to descend, the gravity ball moves upwards relative to the mounting seat under the action of inertia, the rubidium magnet at the end part of the slide rod is close to the limiting plate, the rubidium magnet adsorbs the limiting plate, the elastic force of the spring piece is overcome, the ratchet groove is separated from the groove structure, the slide block is close to the guide rail under the action of the elastic force of the tensioning spring, the eccentric wheels of the anti-falling device are close to each other, on one hand, the friction force is utilized to overturn the two symmetrical eccentric wheels, the radius of the eccentric wheels is gradually changed, the radius is increased in the overturning process, the friction force of the eccentric wheels to the guide rail is increased, the elevator is effectively prevented from descending, on the other hand, in the overturning process of the eccentric wheels, the anti-falling pad is overturned to be abutted against the guide rail, so that the friction force is further increased, and the safety is effectively improved.

(2) Through the structural design of the eccentric wheel with anti-skid grains and the anti-falling pad, when the sliding block is close to the guide rail under the action of the elastic force of the tension spring, the eccentric wheel can effectively contact the guide rail and rotate by utilizing the friction force by combining the descending speed of the elevator.

(3) Through the different limiting plate of magnetism and the structural design of rubidium magnet, the gravity ball receives the inertia effect to move up the back for the mount pad, restores to the original position under buffer spring's effect, and the limiting plate is kept away from to rubidium magnet this moment, and under the effect of spring leaf, the limiting plate jacking resets, makes ratchet groove and groove structure involution again, and the slider has kept the displacement volume this moment, and then makes eccentric wheel press from both sides tight guide rail and not receive the pressure and return and contract, has effectively promoted structural stability and security.

(4) The anti-falling device has the advantages that the structure is simple, the anti-falling function is realized, the response is rapid and timely, the safety is high, the market prospect is realized, and the anti-falling device is suitable for popularization.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic illustration of an explosive structure according to the present invention;

FIG. 4 is a schematic cross-sectional view of the present invention;

FIG. 5 is an enlarged view of the portion A in FIG. 4;

FIG. 6 is a schematic diagram of the gravity ball and its components according to the present invention;

FIG. 7 is a schematic structural view of the anti-falling device and the limiting plate according to the present invention;

fig. 8 is a schematic diagram of an explosion structure of the anti-falling device and the limiting plate provided by the invention;

FIG. 9 is a schematic diagram of the internal structure of the present invention during uniform operation;

FIG. 10 is a schematic diagram of the internal structure of the present invention during accelerated operation.

The reference numbers in the figures illustrate:

the anti-falling device comprises a mounting seat 1, an N-shaped bracket 2, a sliding chute 21, a connecting column 22, a wear-resistant pad 3, an anti-falling device 4, an eccentric wheel 41, a sliding block 42, a tension spring 43, a ratchet groove 44, an anti-falling pad 45, a buffer rubber sleeve 5, a mounting buckle 6, a gravity ball 7, a sliding rod 71, a buffer spring 72, a rubidium magnet 73, a limiting plate 8 and a spring piece 81.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-10, an elevator guide shoe with anti-falling function comprises a mounting base 1, an N-shaped bracket 2 is arranged on one side of the mounting base 1, a wear pad 3 matched with a guide rail is fixed in the N-shaped bracket 2, two sets of anti-falling devices 4 arranged oppositely are respectively arranged on the top and the bottom of the N-shaped bracket 2, each anti-falling device 4 comprises a sliding block 42, a sliding groove 21 corresponding to the sliding block 42 is arranged on the N-shaped bracket 2, a tension spring 43 is clamped and fixed between the sliding groove 21 and the sliding block 42, one end of the sliding block 42 is rotatably connected with an eccentric wheel 41 through a rotating shaft, an anti-falling pad 45 is fixed on one side of the eccentric wheel 41, a cylindrical groove is arranged on the inner wall of the N-shaped bracket 2, a gravity ball 7 is slidably connected in the cylindrical groove, a sliding rod 71 is fixed on both the upper and lower ends of the gravity ball 7, a buffer spring 72 is clamped and connected between the gravity ball 7 and the N-shaped bracket 2, the buffer spring 72 is sleeved on the sliding rod 71, rubidium magnet 73 is fixed on one side of the sliding rod 71 far away from the gravity ball 7, a ratchet groove 44 is arranged on one side of the sliding block 42 opposite to the rubidium magnet 73, a limiting plate 8 is connected to the inner wall of the sliding groove 21 in a sliding mode, a groove structure corresponding to the ratchet groove 44 is arranged on one side of the limiting plate 8, a spring piece 81 is arranged on the other side of the limiting plate 8, and the limiting plate 8 is of a magnet structure.

According to the invention, through the mutual matching of the gravity ball 7 with the sliding rod 71, the buffer spring 72 and the rubidium magnet 73 and the anti-falling device 4 with the eccentric wheel 41, the sliding block 42, the tension spring 43, the ratchet groove 44 and the anti-falling pad 45, when the elevator is accelerated to descend in use, the gravity ball 7 moves upwards relative to the mounting seat 1 under the action of inertia, the rubidium magnet 73 at the end part of the sliding rod 71 is close to the limit plate 8, the rubidium magnet 73 adsorbs the limit plate 8, the elastic force of the spring plate 81 is overcome to move downwards, the ratchet groove 44 is separated from the groove structure, the sliding block 42 is close to the guide rail under the action of the elastic force of the tension spring 43, the eccentric wheel 41 of the anti-falling device 4 is close to each other, on one hand, the two symmetrical eccentric wheels 41 are overturned by utilizing the friction force, the radius of the eccentric wheels 41 gradually changes, the radius is increased in the overturning process, the friction force of the eccentric wheels 41 to the guide rail is increased, and the elevator is effectively prevented from descending, meanwhile, in the process of turning the eccentric wheel 41, the anti-falling pad 45 is turned and abutted against the guide rail, so that the friction force is further increased, and the safety is effectively improved.

Referring to fig. 1-10, the outer contour of the eccentric wheel 41 is a vortex line structure, the anti-falling pad 45 is disposed at the maximum radius of the eccentric wheel 41, the anti-falling pad 45 and the wear pad 3 are both made of wear-resistant rubber, and anti-slip lines are disposed on one side of the outer walls of the eccentric wheel 41 and the anti-falling pad 45. Through the structural design of the eccentric wheel 41 with anti-skid lines and the anti-falling pad 45, when the sliding block 42 is close to the guide rail under the action of the elastic force of the tension spring 43, the eccentric wheel 41 can effectively contact the guide rail and rotate by utilizing the friction force by combining the descending speed of the elevator.

Referring to fig. 1-10, the tension spring 43 is a high-strength fatigue-resistant spring, the tension spring 43 has an elastic force for driving the slider 42 to move away from the sliding slot 21, the spring plate 81 has an elastic force for driving the stopper plate 8 to move close to the slider 42, the magnetism of the stopper plate 8 is different from that of the rubidium magnet 73, the magnetic attraction force between the rubidium magnet 73 and the stopper plate 8 is greater than the elastic force of the spring plate 81, the two buffer springs 72 are in a free state, the distance between the gravity ball 7 and the upper and lower anti-falling devices 4 is equal, and when the ratchet groove 44 is matched with the groove structure, the resistance of the slider 42 to move close to the guide rail is smaller than the resistance of the slider to move away from the guide rail. Through the structural design of the limiting plate 8 and the rubidium magnet 73 with different magnetism, after the gravity ball 7 moves upwards relative to the mounting seat 1 under the action of inertia, the gravity ball recovers the original position under the action of the buffer spring 72, the rubidium magnet 73 is far away from the limiting plate 8 at the moment, the limiting plate 8 is jacked and reset under the action of the spring piece 81, the ratchet groove 44 and the groove structure are reset, the sliding block 42 keeps the displacement at the moment, the eccentric wheel 41 is further enabled to clamp the guide rail and is not retracted under the pressure, and the structural stability and the safety are effectively improved.

Referring to fig. 1-10, each elevator car is provided with four sets of mounting seats 1, the four sets of mounting seats 1 are respectively mounted on two sides of an upper beam and two sides of the bottom of the car, two sets of guide rails are symmetrically and vertically fixed on a wall body of a hoistway of a building, a gravity ball 7 is of a shot ball structure, the mounting seats 1 are movably connected with an N-shaped support 2, one side of the N-shaped support 2 is symmetrically provided with a connecting column 22, the mounting seats 1 are provided with mounting buckles 6 matched with the connecting column 22, and the connecting column 22 is sleeved with a buffer rubber sleeve 5. Lead to the setting of spliced pole 22, buffering gum cover 5 and installation knot 6, make swing joint between mount pad 1 and N type support 2, can keep N type support 2 about the direction have certain elastic buffer volume when restricting N type support 2 and removing, effectively promoted the damping performance, also convenient to detach simultaneously.

The anti-falling device has the advantages of simple structure, anti-falling function, quick and timely response, high safety, market prospect and suitability for popularization.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a boots are led to elevator with prevent weighing down function, includes mount pad (1), mount pad (1) one side is equipped with N type support (2), its characterized in that: the anti-falling device is characterized in that a wear-resistant pad (3) matched with a guide rail is fixed in the N-shaped support (2), two sets of anti-falling devices (4) which are oppositely arranged are respectively arranged at the top and the bottom of the N-shaped support (2), each anti-falling device (4) comprises a sliding block (42), a sliding groove (21) corresponding to the sliding block (42) is formed in the N-shaped support (2), a tension spring (43) is fixedly clamped between the sliding groove (21) and the sliding block (42), one end of the sliding block (42) is rotatably connected with an eccentric wheel (41) through a rotating shaft, an anti-falling pad (45) is fixed on one side of the eccentric wheel (41), a cylindrical groove is formed in the inner wall of the N-shaped support (2), a gravity ball (7) is slidably connected in the cylindrical groove, sliding rods (71) are fixed at the upper end and the lower end of the gravity ball (7), a buffer spring (72) is clamped between the gravity ball (7) and the N-shaped support (2), buffer spring (72) cup joints on slide bar (71), one side that gravity ball (7) were kept away from in slide bar (71) is fixed with rubidium magnet (73), slider (42) and the relative one side of rubidium magnet (73) are equipped with ratchet groove (44), spout (21) inner wall sliding connection has limiting plate (8), limiting plate (8) one side is equipped with the groove structure corresponding with ratchet groove (44), the opposite side of limiting plate (8) is equipped with spring leaf (81), limiting plate (8) are the magnet structure.

2. The elevator guide shoe with the anti-falling function according to claim 1, characterized in that: the outer contour of the eccentric wheel (41) is of a vortex line structure, the anti-falling pad (45) is arranged at the maximum radius of the eccentric wheel (41), the anti-falling pad (45) and the wear-resistant pad (3) are of wear-resistant rubber structures, and anti-skid grains are arranged on one sides of the outer walls of the eccentric wheel (41) and the anti-falling pad (45).

3. The elevator guide shoe with the anti-falling function according to claim 1, characterized in that: the tensioning spring (43) is a high-strength fatigue-resistant spring, and the tensioning spring (43) has an elastic force for driving the sliding block (42) away from the sliding chute (21).

4. The elevator guide shoe with the anti-falling function according to claim 1, characterized in that: the spring piece (81) has elasticity for driving the limiting plate (8) to be close to the sliding block (42), the magnetism of the limiting plate (8) is different from that of the rubidium magnet (73), and the magnetic attraction force between the rubidium magnet (73) and the limiting plate (8) is larger than the elasticity of the spring piece (81).

5. The elevator guide shoe with the anti-falling function according to claim 1, characterized in that: the distance between the gravity ball (7) and the upper and lower groups of anti-falling devices (4) is equal when the two buffer springs (72) are in a free state.

6. The elevator guide shoe with the anti-falling function according to claim 1, characterized in that: when the ratchet grooves (44) are matched with the groove structures, the resistance of the sliding block (42) close to the guide rail is smaller than the resistance of the sliding block far away from the guide rail.

7. The elevator guide shoe with the anti-falling function according to claim 1, characterized in that: four sets of every elevator car mount pad (1), four sets of mount pad (1) are installed respectively in entablature both sides and car bottom both sides, and are two sets of the guide rail symmetry is vertical to be fixed on building well wall body.

8. The elevator guide shoe with the anti-falling function according to claim 1, characterized in that: the gravity ball (7) is of a shot ball structure.

9. The elevator guide shoe with the anti-falling function according to claim 1, characterized in that: swing joint between mount pad (1) and N type support (2), one side symmetry of N type support (2) is equipped with spliced pole (22), be equipped with on mount pad (1) with spliced pole (22) assorted installation knot (6).

10. The elevator guide shoe with the anti-falling function according to claim 9, characterized in that: the connecting column (22) is sleeved with a buffer rubber sleeve (5).