CN114852818B

CN114852818B - Elevator guide shoe with anti-falling function

Info

Publication number: CN114852818B
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: 2023-08-25
Anticipated expiration: 2042-04-15
Also published as: CN114852818A

Abstract

The invention discloses an elevator guide shoe with an anti-falling function, which belongs to the field of elevator accessories and comprises a mounting seat, wherein an N-shaped support is arranged on one side of the mounting seat, wear-resisting pads matched with a guide rail are fixed in the N-shaped support, two groups of anti-falling devices which are oppositely arranged are respectively arranged at the top and the bottom of the N-shaped support, the anti-falling devices comprise sliding blocks, sliding grooves corresponding to the sliding blocks are arranged on the N-shaped support, tensioning springs are fixedly clamped between the sliding grooves and the sliding blocks, one end of each sliding block is rotatably connected with an eccentric wheel through a rotating shaft, one side of each eccentric wheel is fixedly provided with an anti-falling pad, a cylindrical groove is formed in the inner wall of the N-shaped support, gravity balls are slidingly connected in the cylindrical groove, sliding rods are respectively fixed at the upper end and the lower end of each gravity ball, and buffer springs are clamped between the gravity balls and the N-shaped support.

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 a falling prevention function.

Background

With the rapid development of social economy and the rapid improvement of city construction level in China, a novel city is spotted on a high-rise building at the speed of spring bamboo shoots after rain, and an elevator facility matched with the city is used as a vertical transportation means for carrying people and things, so that the vehicle becomes an irreplaceable transportation means. As the building is built more and more, the requirements on the safety and reliability of the elevator are also higher and higher. When parts such as a traction system, a speed limiter or a steel wire rope of the elevator are failed, the elevator car can fall, so that passengers in the elevator can be seriously threatened by life and psychological burden. Although many anti-falling devices are currently available to prevent falling when an elevator fails, such as rope clamps, they mainly act on the steel wire ropes, and when the steel wire ropes break, they cannot achieve the anti-falling purpose, thereby affecting the anti-falling effect. Therefore, the prior art has the problem of unsatisfactory anti-falling effect, and therefore, the elevator guide shoe with the anti-falling function is provided for solving the problem.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems existing in the prior art, the invention aims to provide the elevator guide shoe with the anti-falling function, which can realize the mutual matching between the gravity ball with the sliding rod, the buffer spring and the rubidium magnet and the anti-falling device with the eccentric wheel, the sliding block, the tensioning spring, the ratchet slot and the anti-falling pad.

2. Technical proposal

In order to solve the problems, the invention adopts the following technical scheme.

The utility model provides an elevator guide shoe with anti-falling function, includes the mount pad, mount pad one side is equipped with N type support, N type support internal fixation has with guide rail assorted wear pad, N type support's top and bottom are equipped with two sets of anti-falling device that set up relatively respectively, anti-falling device includes the slider, be equipped with the spout corresponding with the slider on the N type support, the clamp is fixed with tensioning spring between spout and the slider, the one end of slider is connected with the eccentric wheel through the pivot rotation, one side of eccentric wheel is fixed with the anti-falling pad, the inner wall of N type support is equipped with the cylindrical groove, sliding connection has the gravity ball in the cylindrical groove, the upper and lower both ends of gravity ball all are fixed with the slide bar, the buffer spring has been cup jointed between gravity ball and the N type support, the slide bar is kept away from one side of gravity ball and is fixed with rubidium magnet, one side that slider and rubidium magnet are relative is equipped with the ratchet, spout inner wall sliding connection has the limiting plate, tooth groove one side is equipped with the recess structure corresponding with the ratchet groove, the limiting plate is equipped with the spring piece, limiting plate is spacing plate structure. According to the elevator anti-falling device, the gravity ball with the slide bar, the buffer spring and the rubidium magnet is matched with the anti-falling device with the eccentric wheel, the slide block, the tension spring, the ratchet slot and the anti-falling pad, when the elevator is in use, the gravity ball moves upwards relative to the mounting seat under the inertia effect when the elevator is in accelerated descent, the rubidium magnet at the end part of the slide bar is close to the limiting plate, so that the rubidium magnet adsorbs the limiting plate, the elasticity of the spring piece is overcome to move downwards, the ratchet slot is separated from the groove structure, the slide block is close to the guide rail under the elasticity 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 friction force, the radius of the eccentric wheels is gradually changed, the radius is increased in the overturning process, the friction force of the eccentric wheels on the guide rail is increased, the elevator is effectively prevented from descending, and on the other hand, the anti-falling pad is overturned with the guide rail in the overturning process of the eccentric wheels, the friction force is further increased, and the safety is effectively improved.

Further, the eccentric wheel outer contour is the vortex line structure, prevent weighing down the pad setting in the biggest radius department of eccentric wheel, prevent weighing down pad and wear pad and be wear-resisting rubber structure, eccentric wheel and prevent weighing down outer wall one side of pad all to be equipped with anti-skidding line. Through the structural design of eccentric wheel and anti-falling pad with anti-slip lines, when the slider is close to the guide rail under the action of the elasticity of the tensioning spring, the falling speed of the elevator is combined, so that the eccentric wheel can effectively contact the guide rail and rotate by utilizing friction force.

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

Further, the spring piece has the 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 magnetism suction of rubidium magnet and limiting plate is greater than the elasticity of spring piece.

Furthermore, the two buffer springs are in a free state, and the gravity balls are equal to the distance between the upper anti-falling device and the lower anti-falling device.

Further, when the ratchet grooves are aligned with the groove structures, 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 structural design of the spacing plate with dissimilar magnetism and rubidium magnet, the gravity ball is moved up for the mount pad after inertial effect, resumes the normal position under buffer spring's effect, and the spacing plate is kept away from to rubidium magnet this moment, under the effect of spring leaf, and the spacing plate jacking resets, makes ratchet tooth groove and groove structure involution again, and the slider has kept the displacement this moment, and then makes eccentric wheel clamp rail not receive the pressure to retract, has effectively promoted structural stability and security.

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

Further, the gravity ball is of a shot structure.

Further, the installation seat is movably connected with the N-type support, connecting columns are symmetrically arranged on one side of the N-type support, and installation buckles matched with the connecting columns are arranged on the installation seat.

Further, a buffer rubber sleeve is sleeved on the connecting column. Through the arrangement of the connecting column, the buffer rubber sleeve and the mounting buckle, the mounting seat is movably connected with the N-type bracket, the N-type bracket is limited to move left and right, and meanwhile, a certain elastic buffer quantity can be kept in the up-down direction of the N-type bracket, so that the damping performance is effectively improved, meanwhile, the anti-falling device is convenient to detach, has a falling prevention function, is rapid and timely in response, is high in safety, has a market prospect, and is suitable for popularization.

3. Advantageous effects

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

(1) According to the scheme, when the elevator descends in an accelerating mode, the gravity ball moves upwards relative to the mounting seat under the inertia effect, the rubidium magnet at the end portion of the sliding rod is close to the limiting plate, the rubidium magnet adsorbs the limiting plate, the elasticity of the spring piece is overcome to move downwards, the ratchet slot is separated from the groove structure, the sliding block is close to the guide rail under the action of the elasticity of the tensioning spring, the eccentric wheels of the anti-falling device are close to each other, on one hand, two symmetrical eccentric wheels are turned by friction force, the radius of the eccentric wheels is gradually changed, in the turning process, the radius is increased, the friction force of the eccentric wheels on the guide rail is increased, the elevator is effectively prevented from descending, on the other hand, the eccentric wheels are turned in the process of turning, the anti-falling pad is abutted to the guide rail, the friction force is further increased, and the safety is effectively improved.

(2) Through the structural design of eccentric wheel and anti-falling pad with anti-slip lines, when the slider is close to the guide rail under the action of the elasticity of the tensioning spring, the falling speed of the elevator is combined, so that the eccentric wheel can effectively contact the guide rail and rotate by utilizing friction force.

(3) Through the structural design of the spacing plate with dissimilar magnetism and rubidium magnet, the gravity ball is moved up for the mount pad after inertial effect, resumes the normal position under buffer spring's effect, and the spacing plate is kept away from to rubidium magnet this moment, under the effect of spring leaf, and the spacing plate jacking resets, makes ratchet tooth groove and groove structure involution again, and the slider has kept the displacement this moment, and then makes eccentric wheel clamp rail not receive the pressure to retract, has effectively promoted structural stability and security.

(4) Through the arrangement of the connecting column, the buffer rubber sleeve and the mounting buckle, the mounting seat is movably connected with the N-type bracket, the N-type bracket is limited to move left and right, and meanwhile, a certain elastic buffer quantity can be kept in the up-down direction of the N-type bracket, so that the damping performance is effectively improved, meanwhile, the anti-falling device is convenient to detach, has a falling prevention function, is rapid and timely in response, is high in safety, has a market prospect, and is suitable for popularization.

Drawings

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

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

FIG. 3 is a schematic diagram 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 schematic view of the portion A in FIG. 4;

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

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

FIG. 8 is a schematic view of an explosion structure of the anti-falling device and the limiting plate according to the present invention;

FIG. 9 is a schematic view of the internal structure of the present invention during constant speed operation;

fig. 10 is a schematic view of the internal structure of the present invention during acceleration operation.

The reference numerals in the figures illustrate:

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

Detailed Description

The technical solutions 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 apparent that the described embodiments are only some embodiments of the present invention, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present invention are within the protection scope of the present invention.

In the description of the present invention, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, 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 explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Example 1:

referring to fig. 1-10, an elevator guide shoe with anti-falling function includes a mounting seat 1, an N-type support 2 is provided at one side of the mounting seat 1, wear-resistant pads 3 matched with a guide rail are fixed in the N-type support 2, two sets of anti-falling devices 4 are provided at the top and bottom of the N-type support 2, the anti-falling devices 4 include a sliding block 42, a sliding groove 21 corresponding to the sliding block 42 is provided on the N-type support 2, a tensioning 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 at one side of the eccentric wheel 41, a cylindrical groove is provided on the inner wall of the N-type support 2, a gravity ball 7 is slidably connected in the cylindrical groove, sliding bars 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-type support 2, the buffer spring 72 is sleeved on the sliding bar 71, a rubidium magnet 73 is fixed at one side of the sliding block 42, a ratchet 44 is provided at the opposite side of the rubidium magnet 73, a limit plate 8 is slidably connected with the inner wall of the sliding groove 21, a limit plate 8 is slidably connected with the ratchet plate 8, a limit plate 8 is provided at one side of the limit plate 8, a limit plate 8 is provided with a limit plate 81, and the limit plate 81 is provided at the other side of the limit plate 81.

According to the invention, through the mutual matching of the gravity ball 7 with the slide bar 71, the buffer spring 72 and the rubidium magnet 73 and the anti-falling device 4 with the eccentric wheel 41, the slide block 42, the tension spring 43, the ratchet groove 44 and the anti-falling pad 45, when the elevator is in use, the gravity ball 7 moves upwards relative to the mounting seat 1 under the inertia effect when the elevator is in accelerated descent, at the moment, the rubidium magnet 73 at the end part of the slide bar 71 is close to the limiting plate 8, so that the rubidium magnet 73 adsorbs the limiting plate 8, further overcomes the elasticity of the spring piece 81 to move downwards, at the moment, the ratchet groove 44 is separated from the groove structure, the slide block 42 is close to the guide rail under the elasticity of the tension spring 43, at the moment, the eccentric wheel 41 of the anti-falling device 4 is close to each other, on one hand, the friction force is utilized to enable the two symmetrical eccentric wheels 41 to overturn, the radius of the eccentric wheel 41 is gradually changed, the radius is increased in the overturning process, the friction force of the eccentric wheel 41 on the guide rail is increased, the elevator is effectively prevented from descending, and on the other hand, the anti-falling pad 45 is overturned with the guide rail is further increased in friction force in the overturning process, so that the safety is effectively improved.

Referring to fig. 1-10, the outer contour of the eccentric wheel 41 is in a spiral 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 in wear-resistant rubber structures, and anti-slip lines are arranged on one side of the outer walls of the eccentric wheel 41 and the anti-falling pad 45. Through the structural design of eccentric wheel 41 and anti-falling pad 45 with anti-slip lines, when slider 42 is close to the guide rail under the action of the elasticity of tensioning spring 43, the falling speed of elevator self is combined, so that eccentric wheel 41 can effectively contact the guide rail and rotate by utilizing friction force.

Referring to fig. 1-10, the tension spring 43 is a high-strength anti-fatigue spring, the tension spring 43 has an elastic force for driving the sliding block 42 away from the sliding groove 21, the spring piece 81 has an elastic force for driving the limiting plate 8 to approach the sliding block 42, the magnetism of the limiting plate 8 is different from that of the rubidium magnet 73, the magnetic attraction between the rubidium magnet 73 and the limiting plate 8 is greater than that of the spring piece 81, the two buffer springs 72 are in a free state, the distance between the gravity ball 7 and the anti-falling devices 4 of the upper group and the lower group is equal, and when the ratchet groove 44 is aligned with the groove structure, the resistance of the sliding block 42 approaching the guide rail is smaller than the resistance of the sliding block 42 away from the guide rail. Through the structural design of the limit 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 inertia effect, the position of the gravity ball is restored under the action of the buffer spring 72, at the moment, the rubidium magnet 73 is far away from the limit plate 8, and under the action of the spring piece 81, the limit plate 8 is lifted and reset, so that the ratchet slot 44 and the groove structure are re-combined, at the moment, the sliding block 42 keeps the displacement, and further the clamping guide rail of the eccentric wheel 41 is not retracted under pressure, so that the structural stability and safety are effectively improved.

Referring to fig. 1-10, four sets of installation seats 1 of each elevator car are respectively installed 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 well wall of a building, a gravity ball 7 is of a shot structure, the installation seats 1 are movably connected with an N-type support 2, a connecting column 22 is symmetrically arranged on one side of the N-type support 2, an installation buckle 6 matched with the connecting column 22 is arranged on the installation seat 1, and a buffer rubber sleeve 5 is sleeved on the connecting column 22. Through 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 to have certain elasticity buffering volume in the upper and lower direction when restricting N type support 2 and move about, effectively promoted shock-absorbing quality, also convenient to detach simultaneously.

The invention has simple structure, anti-falling function, rapid and timely reaction, high safety, market prospect and suitability for popularization.

The above description is only of the preferred embodiments of the present invention; the scope of the invention is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present invention, and the technical solution and the improvement thereof are all covered by the protection scope of the present invention.

Claims

1. Elevator guide shoe with prevent weighing down function, including mount pad (1), mount pad (1) one side is equipped with N type support (2), its characterized in that: the utility model discloses a wear-resisting pad (3) that N type support (2) internal fixation has with guide rail assorted, the top and the bottom of N type support (2) are equipped with two sets of anti-falling device (4) that set up relatively respectively, anti-falling device (4) are including slider (42), be equipped with on N type support (2) with slider (42) corresponding spout (21), the clamp is fixed with tensioning spring (43) between spout (21) and slider (42), the one end of slider (42) is rotated through the pivot and is connected with eccentric wheel (41), one side of eccentric wheel (41) is fixed with anti-falling pad (45), the inner wall of N type support (2) is equipped with the cylindrical groove, sliding connection has gravity ball (7) in the cylindrical groove, the upper and lower both ends of gravity ball (7) all are fixed with slide bar (71), the clamp is connected with buffer spring (72) between gravity ball (7) and N type support (2), buffer spring (72) cup joint on slide bar (71), one side of slide bar (71) keep away from gravity ball (7) has magnet (73) to be equipped with magnet (73) relative slide bar (8), one side of the limiting plate (8) is provided with a groove structure corresponding to the ratchet groove (44), the other side of the limiting plate (8) is provided with a spring piece (81), and the limiting plate (8) is of a magnet structure.

2. The elevator guide shoe with a fall protection function according to claim 1, characterized in that: the anti-falling pad (45) is arranged at the maximum radius of the eccentric wheel (41), the anti-falling pad (45) and the wear-resisting pad (3) are of wear-resisting rubber structures, and anti-sliding lines are arranged on one side of the outer walls of the eccentric wheel (41) and the anti-falling pad (45).

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

4. The elevator guide shoe with a fall protection function according to claim 1, characterized in that: the spring piece (81) has the 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 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 a fall protection function according to claim 1, characterized in that: the two buffer springs (72) are in a free state, and the gravity balls (7) are equidistant from the anti-falling devices (4) of the upper group and the lower group.

6. The elevator guide shoe with a fall protection function according to claim 1, characterized in that: when the ratchet groove (44) is aligned with the groove structure, the resistance of the slider (42) to approach the rail is less than the resistance of the slider to move away from the rail.

7. The elevator guide shoe with a fall protection function according to claim 1, characterized in that: four sets of mounting seats (1) of each elevator car are respectively arranged on two sides of an upper beam and two sides of the bottom of each car, and two sets of guide rails are symmetrically and vertically fixed on a shaft wall of a building.

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

9. The elevator guide shoe with a fall protection function according to claim 1, characterized in that: the mounting seat (1) is movably connected with the N-type support (2), connecting columns (22) are symmetrically arranged on one side of the N-type support (2), and mounting buckles (6) matched with the connecting columns (22) are arranged on the mounting seat (1).

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