CN221396805U - Elevator structure for preventing unbalanced load of elevator car - Google Patents

Abstract

The utility model relates to the technical field of elevator equipment, in particular to an elevator structure for preventing unbalanced load of an elevator car, wherein an elevator car frame and a counterweight device respectively move up and down in an elevator shaft through a suspension device, a first guide device and a second guide device are arranged on the elevator car frame, and a third guide device and a first rope hitch plate are arranged above the elevator car frame; the suspension device comprises a traction wheel capable of rotating circumferentially, the traction wheel is connected with a first traction rope, one end of the first traction rope is wound on the traction wheel and connected with the counterweight device, the other end of the first traction rope is wound on the first guide device, the third guide device and the second guide device in sequence and connected on the first rope head plate, a first suspension point and a second suspension point which are positioned at two sides of the first guide device and a third suspension point and a fourth suspension point which are positioned at two sides of the second guide device are formed, so that the whole car frame only bears vertical acting forces with opposite directions in the carrying process, the lifting balance of the car frame is ensured, the influence of unbalanced load is avoided, and the elevator is enabled to run more safely and reliably.

Description

Elevator structure for preventing unbalanced load of elevator car

Technical Field

The utility model relates to the technical field of elevator equipment, in particular to an elevator structure for preventing unbalanced load of an elevator car.

Background

The driving mode of the elevator can be classified into traction driving, forced (reel) driving, hydraulic driving, etc., wherein the traction driving mode has the advantages of safety and reliability, basically unrestricted lifting height, easy control of elevator speed, etc., and has become the main stream of the driving mode of elevator products.

In the traction type driving mechanism, a steel wire rope is suspended in a rope groove of a traction sheave, one end of the steel wire rope is connected with a car, the other end of the steel wire rope is connected with a counterweight, and the traction sheave drives the elevator steel wire rope to drive the car to lift by utilizing friction between the traction sheave and the steel wire rope.

However, in the conventional elevator traction device, only one steel wire rope suspension point is arranged at the center of a car to form a cantilever structure, when the forklift is used for carrying goods in actual use, uneven stress of the elevator often occurs unbalanced load, and the steel wire rope can generate larger bending moment, so that the elevator is easy to break down.

The utility model is researched and proposed for overcoming the defects of the prior art.

Disclosure of utility model

Aiming at the problem that in the traditional elevator traction device, only one steel wire rope suspension point is arranged at the center of a lift car to form a cantilever structure, when a forklift is used for carrying goods in actual use, uneven load often occurs to the elevator, a large bending moment is generated by the steel wire rope, and the elevator is easy to break down, the utility model provides an anti-unbalanced load elevator structure of the lift car.

The technical scheme adopted for solving the technical problems is as follows:

An elevator structure for preventing unbalanced load of an elevator car, wherein the elevator structure is installed in an elevator hoistway and comprises a suspension device, an elevator car frame and a counterweight device, the elevator car frame and the counterweight device respectively move in the elevator hoistway in a lifting manner through the suspension device, a first guide device and a second guide device are arranged on the elevator car frame, and a third guide device and a first rope hitch plate are arranged above the elevator car frame; the suspension device comprises a traction wheel capable of rotating circumferentially, the traction wheel is connected with a first traction rope, one end of the first traction rope is wound on the traction wheel and connected with the counterweight device, and the other end of the first traction rope sequentially bypasses the first guide device, the third guide device and the second guide device and is connected with the first rope hitch plate; the first traction rope bypasses the first guide device and the second guide device respectively and forms a first suspension point and a second suspension point which are positioned at two sides of the first guide device, and a third suspension point and a fourth suspension point which are positioned at two sides of the second guide device on the car frame.

The elevator structure for preventing the unbalanced load of the elevator car comprises a first guide device and a second guide device which are oppositely arranged at the top of the elevator car frame, wherein the first guide device comprises a first elevator car guide wheel and a second elevator car guide wheel, the second guiding device comprises a third car guiding wheel and a fourth car guiding wheel, and the third guiding device comprises a first car diverting pulley and a second car diverting pulley.

According to the elevator structure for preventing unbalanced load of the elevator, the first elevator car guide wheel, the second elevator car guide wheel, the third elevator car guide wheel and the fourth elevator car guide wheel are sequentially arranged along the central axis of the elevator car frame in the length direction, the rotating planes of the first elevator car guide wheel, the second elevator car guide wheel, the third elevator car guide wheel and the fourth elevator car guide wheel are all located on the vertical plane of the central axis, a first interval area is arranged between the second elevator car guide wheel and the third elevator car guide wheel, the first elevator car diverting pulley and the second elevator car diverting pulley are arranged above the first interval area, and the first rope head plate is arranged above the fourth elevator car guide wheel.

According to the elevator structure for preventing unbalanced load of the elevator, the first elevator car guide wheel and the fourth elevator car guide wheel, the second elevator car guide wheel and the third elevator car guide wheel are arranged in a pairwise manner, a second interval area is arranged between the second elevator car guide wheel and the third elevator car guide wheel, the first elevator car diverting pulley and the second elevator car diverting pulley are arranged above the second interval area, and the first rope head plate is arranged above the fourth elevator car guide wheel.

According to the elevator structure for preventing unbalanced load of the elevator car, the suspension device comprises the traction machine, the traction wheel is connected to the output shaft of the traction machine, and the third guide device and the first rope hitch plate are arranged on one side of the traction machine.

The elevator structure for preventing the unbalanced load of the elevator car comprises the second rope hitch plate arranged on one side of the traction machine, wherein the top of the counterweight device is provided with the fourth guide device, and one end of the first traction rope, which is wound on the traction wheel, bypasses the fourth guide device and is connected to the second rope hitch plate.

The elevator structure for preventing unbalanced load of the elevator car comprises a first counterweight and a second counterweight, wherein the first counterweight and the second counterweight are adjacently arranged, the fourth guiding device comprises a first counterweight guiding wheel arranged at the top of the first counterweight and a second counterweight guiding wheel arranged at the top of the second counterweight, a fifth guiding device is arranged between the traction machine and a second rope head plate and comprises a counterweight diverting pulley, and one end of a first traction rope, which is wound on the traction pulley, sequentially bypasses the first counterweight guiding wheel, the counterweight diverting pulley and the second counterweight guiding wheel and is connected to the second rope head plate.

The elevator structure for preventing unbalanced load of the elevator comprises the elevator guide rail device, wherein the elevator guide rail device comprises first elevator guide rails, second elevator guide rails, third elevator guide rails and fourth elevator guide rails which are symmetrically distributed on two sides of the elevator frame, and the elevator frame is in sliding connection with the first elevator guide rails, the second elevator guide rails, the third elevator guide rails and the fourth elevator guide rails through elevator guide shoes.

The elevator structure for preventing the unbalanced load of the elevator car further comprises a counterweight guide rail device which is connected with the counterweight device in a sliding manner.

The elevator structure for preventing unbalanced load of the elevator car comprises the speed limiter, wherein the linkage mechanism is further arranged at the top of the elevator car frame, and the speed limiter is connected with the linkage mechanism through the second traction rope.

Compared with the prior art, the utility model has the beneficial effects that:

The lifting device of the car frame is used as the lifting device of the car frame, the lifting movement of the car in the elevator shaft is realized, the first traction rope forms a first suspension point, a second suspension point, a third suspension point and a fourth suspension point at the top of the car frame through the first guiding device and the second guiding device, so that the whole car frame only bears vertical acting forces with opposite directions in the carrying process, the lifting balance of the car frame is ensured, the unbalanced load influence is avoided, and the elevator is safer and more reliable to operate.

The utility model will be further described with reference to the drawings and detailed description.

Drawings

Fig. 1 is a longitudinal internal structural view of an elevator hoistway of the present utility model;

fig. 2 is a schematic diagram one of the specific distributed embodiments of the first, second, third and fourth car guide wheels of the present utility model;

Fig. 3 is a schematic diagram two of one of the specific distributed embodiments of the first, second, third and fourth car guide wheels of the present utility model;

Fig. 4 is a schematic view of the internal structure of the machine room according to one of the above embodiments;

fig. 5 is a schematic view of a second embodiment of a specific distribution of first, second, third and fourth car guide wheels of the present utility model;

FIG. 6 is a schematic diagram of the internal structure of a machine room according to the second embodiment;

Fig. 7 is a schematic diagram showing the transmission relation of the traction machine, the first guide and the third guide (hiding the cage frame and the linkage mechanism) of the present utility model;

fig. 8 is a schematic diagram of the connection of the car guide shoe and the car frame of the present utility model.

Detailed Description

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1-8, the elevator structure for preventing unbalanced load of a car provided by the utility model is installed in an elevator shaft 1, and comprises a suspension device, a car frame 3 and a counterweight device 4, wherein the car frame 3 and the counterweight device 4 respectively move up and down in the elevator shaft 1 through the suspension device, a first guide device 21 and a second guide device 22 are arranged on the car frame 3, and a third guide device 23 and a first rope hitch 24 which are positioned above the car frame 3 are also arranged in the elevator shaft 1; the suspension device comprises a traction sheave 25 capable of rotating circumferentially, the traction sheave 25 is connected with a first traction rope 26, one end of the first traction rope 26 is wound on the traction sheave 25 and connected with the counterweight device 4, and the other end of the first traction rope is wound on the first guide device 21, the third guide device 23 and the second guide device 22 in sequence and connected with the first rope hitch plate 24; the first traction rope 26 passes around the first and second guide devices 21 and 22, respectively, and forms first and second suspension points 201 and 202 on both sides of the first guide device 21, and third and fourth suspension points 203 and 204 on both sides of the second guide device 22 on the car frame 3.

In this embodiment, the elevator may be a cargo elevator for a forklift to carry cargo while being manned, the car frame 3 is installed outside the car and serves to support and fix the car, the suspension means serves as a lifting means for the car frame 3 and the counterweight 4, and the load weight of the car is balanced by the counterweight 4 during the lifting of the car frame 3 so that the car can be lifted smoothly and the load of the suspension means is reduced; when the elevator runs, the car frame 3 and the counterweight device 4 respectively perform lifting movements in opposite directions in the elevator shaft 1 through the suspension device, namely, when the car frame 3 ascends in the elevator shaft 1 through the suspension device, the counterweight device 4 descends in the elevator shaft 1 through the suspension device; when the car frame 3 is lowered in the elevator shaft 1 by the suspension means, the counterweight 4 is raised in the elevator shaft 1 by the suspension means. Since the load weight of the elevator car is not always consistent in the carrying process, after the forklift loads goods into the elevator car, the weight distribution in the elevator car is uneven, so that the elevator car is unbalanced, the elevator car is stressed unevenly under the unbalanced load condition, the whole elevator car is easy to incline, the elevator car is easy to collide with the inner wall of the elevator well 1 or is easy to deform, and the elevator is easy to break down, in order to solve the problem, the elevator car frame 3 is provided with a first guide device 21 and a second guide device 22 which are opposite, one end of a first traction rope 26 is connected on the first rope head plate 24, the other end sequentially bypasses the second guide device 22, a third guide device 23 and the first guide device 21, is wound on a traction wheel 25 and finally is connected with the counterweight device 4, So that the first traction rope 26 forms a first suspension point 201 and a second suspension point 202 located at both sides of the first guide device 21, a third suspension point 203 and a fourth suspension point 204 located at both sides of the second guide device 22 at the top of the car frame 3, specifically, the first suspension point 201 may be right below the car exit point A1 of the traction sheave 25, the first suspension point 201 is tangential to the car exit point A1 of the traction sheave 25 by the first traction rope 26, the second suspension point 202 may be right below the entrance point of the third guide device 23, the second suspension point 202 and the entrance point of the third guide device 23 are tangential by the first traction rope 26, The third suspension point 203 may be right below the rope exit point of the third guiding device 23, the third suspension point 203 and the rope exit point of the third guiding device 23 may be tangent to each other by the first traction rope 26, the fourth suspension point 204 may be right below the connection point of the first traction rope 26 and the first rope hitch 24, the fourth suspension point 204 and the connection point may be tangent to each other by the first traction rope 26, so that the first traction rope 26 is kept in a vertical state at the connection section between the first rope hitch 24, the second guiding device 22, the third guiding device 23, the first guiding device 21 and the traction sheave 25, the situation that the car frame 3 is stressed and dispersed due to the inclination in the first traction rope 26 is avoided, Thereby ensure that car frame 3 is whole only to bear the opposite direction vertical effort in the delivery in-process, ensure the lift balance of car frame 3, avoid the unbalance loading influence, and then make elevator operation safe and reliable more.

Further, the first guiding device 21 and the second guiding device 22 are oppositely arranged at the top of the car frame 3, the first guiding device 21 comprises a first car guiding wheel 211 and a second car guiding wheel 212, the second guiding device 22 comprises a third car guiding wheel 221 and a fourth car guiding wheel 222, and the third guiding device 23 comprises a first car diverting pulley 231 and a second car diverting pulley 232. In this embodiment, one end of the first traction rope 26 is connected to the first rope hitch 24, and the other end of the first traction rope 26 extends downward from the first rope hitch 24 and bypasses the fourth car guide wheel 222 and the third car guide wheel 221, then bypasses the second car diverting pulley 232 and the first car diverting pulley 231 upward, then bypasses the second car guide wheel 212 and the first car guide wheel 211 downward, and then bypasses the traction wheel 25 upward and is connected to the counterweight 4; wherein, first car leading wheel 211 is equipped with first rotation plane, second car leading wheel 212 is equipped with the second rotation plane, third car leading wheel 221 is equipped with the third rotation plane, fourth car leading wheel 222 is equipped with the fourth rotation plane, first car diverting pulley 231 is equipped with the fifth rotation plane, second car diverting pulley 232 is equipped with the sixth rotation plane, wherein, first rotation plane and second rotation plane are located same vertical face, third rotation plane and fourth rotation plane are located same vertical face, fifth rotation plane and sixth rotation plane are located same vertical face.

Referring to fig. 2-4, one of the embodiments of the specific distribution of the first car guide wheel 211, the second car guide wheel 212, the third car guide wheel 221 and the fourth car guide wheel 222 is as follows:

The first car guide wheel 211, the second car guide wheel 212, the third car guide wheel 221 and the fourth car guide wheel 222 are sequentially arranged along the central axis in the length direction of the car frame 3, the rotation planes of the first car guide wheel 211, the second car guide wheel 212, the third car guide wheel 221 and the fourth car guide wheel 222 are all positioned on the vertical plane of the central axis, namely the first rotation plane, the second rotation plane, the third rotation plane and the fourth rotation plane are all positioned on the vertical plane of the central axis, as shown in fig. 3, the first car guide wheel 211, the second car guide wheel 212, the third car guide wheel 221 and the fourth car guide wheel 222 are arranged at intervals back and forth, a first interval area 205 is arranged between the second car guide wheel 212 and the third car guide wheel 221, and the first car rope pulley 231 and the second car rope pulley 232 are arranged above the first interval area 205 and on the first rope pulley 24; at this time, the suspension device is arranged between the first guiding device 21 and the counterweight device 4 and above the first guiding device 21 and the counterweight device 4; further, referring to fig. 2 and 3, the car exit point A1 of the traction sheave 25 is located above the entrance point (i.e., the first suspension point 201) of the first car guiding sheave 211, the entrance point B1 of the first car diverting sheave 231 is located above the exit point (i.e., the second suspension point 202) of the second car guiding sheave 212, the exit point B2 of the second car diverting sheave 232 is located above the entrance point (i.e., the third suspension point 203) of the third car guiding sheave 221, and the connection point B3 of the first rope end plate 24 and the first traction rope 26 is located above the exit point (i.e., the fourth suspension point 204) of the fourth car guiding sheave 222.

Further, the first guiding device 21 is close to the front end of the car frame 3, the second guiding device 22 is close to the rear end of the car frame 3, and by arranging the first car guiding wheel 211 and the second car guiding wheel 212 close to the front end of the car frame 3, namely close to the entrance of the car frame 3, and the third car guiding wheel 221 and the fourth car guiding wheel 222 are close to the rear end of the car frame 3, especially when the length of the car frame 3 is greater than the width of the car frame 3, namely when the length of the car is greater than the width of the car frame 3, the front end and the rear end of the car frame 3 are balanced, so that the unbalanced load is avoided, and the operation safety of the elevator is further ensured.

Referring to fig. 5 and 6, a second embodiment of the specific distribution of the first car guide wheel 211, the second car guide wheel 212, the third car guide wheel 221 and the fourth car guide wheel 222 is as follows:

The first car guiding wheel 211 and the fourth car guiding wheel 222, the second car guiding wheel 212 and the third car guiding wheel 221 are arranged in a pairwise opposite manner, a second interval area 206 is arranged between the second car guiding wheel 212 and the third car guiding wheel 221, the first car diverting pulley 231 and the second car diverting pulley 232 are arranged above the second interval area 206, and the first rope hitch plate 24 is arranged above the fourth car guiding wheel 222; in this embodiment, the top of the car frame 3 may be divided into a "field" shape along two symmetrical lines perpendicular to each other, where the first car guide wheel 211 and the fourth car guide wheel 222, the second car guide wheel 212 and the third car guide wheel 221 are disposed in the "field" shape in a pair opposite to each other, the first car guide wheel 211 and the fourth car guide wheel 222 are near the front end of the car frame 3, the second car guide wheel 212 and the third car guide wheel 221 are near the rear end of the car frame 3, and the first rotation plane, the second rotation plane, the third rotation plane, and the fourth rotation plane are opposite to each other, at this time, the suspension device is disposed between the first car guide wheel 211 and the counterweight device 4 and above the first car guide wheel 222, the first rope hitch 24 is disposed opposite to the first rope hitch 24; the first and second car diverting pulleys 231 and 232 are located above the second and third car guide pulleys 212 and 221, i.e., above the second spaced area 206; further, referring to fig. 5, the car exit point A1 of the suspension device is just above the entry point (i.e., the first suspension point 201) of the first car guiding wheel 211, the entry point of the first car diverting pulley 231 is just above the exit point (i.e., the second suspension point 202) of the second car guiding wheel 212, the exit point of the second car diverting pulley 232 is just above the entry point (i.e., the third suspension point 203) of the third car guiding wheel 221, and the connection point of the first traction rope 26 and the first rope hitch 24 is just above the exit point (i.e., the fourth suspension point 204) of the fourth car guiding wheel 222.

Further, referring to fig. 1, the suspension device includes a traction machine 27, an output shaft of the traction machine 27 is connected to the traction sheave 25, and the third guide 23 and the first rope hitch 24 are disposed at one side of the traction machine 27; specifically, a machine room 11 and a lifting cavity 12 which are vertically distributed and a machine room interlayer 13 arranged between the machine room 11 and the lifting cavity 12 are arranged in the elevator hoistway 1, a rope passing channel 131 communicated with the machine room 11 and the lifting cavity 12 is arranged in the machine room interlayer 13, the car frame 3 moves up and down in the lifting cavity 12 through the suspension device, the traction machine 27 is arranged in the machine room 11, and an output shaft of the traction machine 27 is connected with the traction wheel 25; the third guide 23 and the first rope hitch 24 are installed in the machine room 11 at one side of the traction machine 27, and the third guide 23 is provided between the first rope hitch 24 and the traction machine 27. Further, the elevator structure further comprises a second rope hitch 41 disposed at one side of the traction machine 27, a fourth guiding device 42 is disposed at the top of the counterweight 4, and one end of the first traction rope 26 wound on the traction sheave 25 bypasses the fourth guiding device 42 and is connected to the second rope hitch 41; the second rope hitch 41 is mounted in the machine room 11.

In this embodiment, the machine room 11 is configured to accommodate the traction machine 27, the third guiding device 23, the first rope hitch 24, and the second rope hitch 41, the machine room interlayer 13 may be configured as a whole-plate interlayer or a crisscrossed beam structure, and a plurality of rope passing channels 131 are provided in the machine room interlayer 13 for passing the first traction ropes 26; alternatively, referring to fig. 4, in one of the above embodiments, the first rope hitch 24, the second car diverting pulley 232, the first car diverting pulley 231, and the traction machine 27 may be disposed on the machine room compartment 13 in this order from left to right, and the second rope hitch 41 may be disposed on one side of the traction machine 27 and near the right side of the machine room compartment 13. Alternatively, referring to fig. 6, in the second embodiment, the first rope hitch 24 and the traction machine 27 may be sequentially disposed on the machine room interlayer 13 from left to right, the second car deflector sheave 232 and the first car deflector sheave 231 may be disposed between the first rope hitch 24 and the traction machine 27 and opposite to the first rope hitch 24 and the traction machine 27, and the second car deflector sheave 232 and the first car deflector sheave 231 may be sequentially disposed from left to right, and the second rope hitch 41 may be disposed on one side of the traction machine 27 and near the right side of the machine room interlayer 13. Each of the rope paths 130 in the machine room compartment 13 is adapted to the layout of the first rope hitch 24, the third guide 23, the hoisting machine 27, and the second rope hitch 41 in the interior of the machine room 11.

Further, referring to fig. 7, fig. 7 is a schematic diagram of a transmission connection relationship between the traction machine 27, the first guiding device 21, and the third guiding device 23, when the first traction rope 26 bypasses the first guiding device 21 downwards from the car rope outlet point A1 of the traction sheave 25, a second included angle S2 can be formed between the first traction rope 26 connecting section connected between the car rope outlet point A1 of the traction sheave 25 and the rope inlet point (i.e., the first suspension point 201) of the first guiding device 21 and the central axis of the traction sheave 25, and the first included angle S1 and the second included angle S2 can be formed between the first traction rope 26 connecting section connected between the rope outlet point A1 of the first guiding device 21 and the central axis 23 when the first traction rope 26 bypasses the third guiding device 23 upwards from the first guiding device 21, so that the first guiding device 21 is enabled to avoid the influence on the elevator load balancing construction, and the elevator is more stable, and the fault-tolerant construction is more guaranteed, and the elevator is more safe, and the load balancing construction is more guaranteed. Further, the second included angle S2 may be an included angle between the central axis of the first car diverting pulley 231 and a connecting segment of the first traction rope 26 connected between the rope outlet point of the first guiding device 21 (i.e. the second suspension point 202) and the rope inlet point of the third guiding device 23. It should be noted that the first included angle S1 and the second included angle S2 can be applied to the first embodiment and the second embodiment.

Further, referring to fig. 1, 2-6, the counterweight 4 includes a first counterweight 43 and a second counterweight 44 that are adjacently disposed, the fourth guiding device 42 includes a first counterweight guiding wheel 421 disposed at the top of the first counterweight 43, a second counterweight guiding wheel 422 disposed at the top of the second counterweight 44, a fifth guiding device is disposed between the hoisting machine 27 and the second rope hitch 41, and is installed in the machine room 11 and located between the hoisting machine 27 and the second rope hitch 41, the fifth guiding device includes a counterweight diverting sheave 45, and one end of the first traction rope 26 wound on the hoisting sheave 25 sequentially bypasses the first counterweight guiding wheel 421, the counterweight diverting sheave 45, and the second counterweight guiding wheel 422 and is connected to the second rope hitch 41. In this embodiment, a counterweight device 4 located at one side of the car frame 3 is disposed in the lifting cavity 12, and the counterweight device 4 moves up and down in the lifting cavity 12 through a suspension device, where the counterweight device 4 includes a counterweight main support, the first counterweight 43 and the second counterweight 44 are adjacently disposed in the counterweight main support, and the counterweight main support is further provided with a first counterweight guide wheel 421 located at the top of the first counterweight 43 and a second counterweight guide wheel 422 located at the top of the second counterweight 44, one end of the first traction rope 26 wound on the traction wheel 25 bypasses the first counterweight guide wheel 421 downwards from a counterweight rope outlet point A2 of the traction wheel 25, then upwards bypasses the counterweight rope diverting wheel 45, then downwards bypasses the second counterweight guide wheel 422, and finally is connected upwards from the second counterweight guide wheel 422 to the second rope hitch plate 41; moreover, in order to further optimize the force balance of the counterweight 4, referring to fig. 2, the counterweight rope outlet point A2 in the traction sheave 25 may be just above the rope inlet point C1 of the first counterweight guiding wheel 421, the rope inlet point C2 of the counterweight diverting pulley 45 may be just above the rope outlet point C3 of the first counterweight guiding wheel 421, the rope outlet point C4 of the counterweight diverting pulley 45 may be just above the rope inlet point C5 of the second counterweight guiding wheel 422, and the connection point C6 of the second rope end plate 41 and the first traction rope 26 may be just above the rope outlet point C7 of the second counterweight guiding wheel 422, so that only vertical acting force is borne when the counterweight 4 moves up and down, the weight of the car is further balanced, the lifting movement of the car frame 3 is more stable, the driving load of the traction machine 27 is reduced, and the service life of the elevator equipment is further prolonged; it should be noted that the relationship among the counterweight 4, the fifth guide device, and the second rope hitch 41 described above is applicable to the first and second embodiments described above.

Optionally, referring to fig. 3, 5 and 8, the elevator structure further includes a car guide rail device, the car guide rail device includes a first car guide rail 51, a second car guide rail 52, a third car guide rail 53 and a fourth car guide rail 54 symmetrically distributed on two sides of the car frame 3, and the car frame 3 is slidably connected with the first car guide rail 51, the second car guide rail 52, the third car guide rail 53 and the fourth car guide rail 54 through car guide shoes 55, respectively. In this embodiment, the car guide rail device is installed in the lifting cavity 12, the elevator hoistway 1 may be provided with a first upright 501, a second upright 502, a third upright 503 and a fourth upright 504, the first car guide rail 51, the second car guide rail 52, the third car guide rail 53 and the fourth car guide rail 54 are respectively connected with the first upright 501, the second upright 502, the third upright 503 and the fourth upright 504 by guide rail brackets, and the first car guide rail 51, the second car guide rail 52, the third car guide rail 53 and the fourth car guide rail 54 are respectively opposite to the car frame 3; wherein, referring to fig. 3 and 5, the first and second car guide rails 51 and 52 may be disposed opposite to the right side of the car frame 3, and the third and fourth car guide rails 53 and 54 may be disposed opposite to the left side of the car frame 3; by arranging the car guide rail device, the car frame 3 is further stable in the lifting process and is safer and more reliable.

Optionally, referring to fig. 3 and 5, the elevator arrangement further comprises counterweight guide rail means in sliding connection with the counterweight means 4; specifically, the counterweight guide rail device includes two counterweight guide rails 61 respectively in sliding connection with the counterweight device 4, two counterweight guide rails 61 are respectively and oppositely arranged on a side wall opposite between the first upright post 501 and the second upright post 502, and the counterweight device 4 can be in sliding connection with two counterweight guide rails 61 through corresponding counterweight guide shoes, so that the lifting stability of the counterweight device 4 is further enhanced, and the counterweight device is safer and more reliable.

Optionally, referring to fig. 4, 6 and 7, the elevator structure further includes a speed limiter 71, a linkage mechanism is further disposed at the top of the car frame 3, and the speed limiter 71 is connected with the linkage mechanism through a second traction rope 72; specifically, the speed limiter 71 may be disposed in the machine room 11, and during the operation of the elevator, once the speed limiter 71 detects that the descending speed of the elevator exceeds the safety range, the speed limiter 71 may be connected with a braking device, and brake the elevator by the braking device, and the braking force is transmitted to the car frame 3 by the second traction rope 72, and the car is stopped or decelerated by the linkage mechanism, so as to ensure the safe operation of the elevator. Alternatively, the speed limiter 71 is disposed on the machine room compartment 13, and the first rope hitch 24, the third guide 23, and the traction machine 27 are mounted on the machine room compartment 13 by the mounting bracket 130 such that the speed limiter 71 is located below the traction machine 27. It should be noted that, the machine room interlayer 13 may be provided with a rope passage 131 through which the second traction rope 72 passes.

The first traction rope 26 and the second traction rope 72 are preferably steel wire ropes, and the steel wire ropes have the advantages of high strength, corrosion resistance, high flexibility, long service life, high safety and the like, can adapt to long-time heavy-duty work, and are safe and reliable.

The foregoing examples are provided to further illustrate the technical contents of the present utility model for the convenience of the reader, but are not intended to limit the embodiments of the present utility model thereto, and any technical extension or re-creation according to the present utility model is protected by the present utility model. The protection scope of the utility model is subject to the claims.

Claims (10)

1. An elevator structure for preventing unbalanced load of a lift car, which is installed in an elevator shaft (1) and is characterized by comprising a suspension device, a lift car frame (3) and a counterweight device (4), wherein the lift car frame (3) and the counterweight device (4) respectively lift and move in the elevator shaft (1) through the suspension device, a first guide device (21) and a second guide device (22) are arranged on the lift car frame (3), and a third guide device (23) and a first rope hitch plate (24) are arranged above the lift car frame (3); the suspension device comprises a traction sheave (25) capable of rotating circumferentially, the traction sheave (25) is connected with a first traction rope (26), one end of the first traction rope (26) is wound on the traction sheave (25) and connected with the counterweight device (4), and the other end of the first traction rope is wound on the first guide device (21), the third guide device (23) and the second guide device (22) in sequence and connected with the first rope head plate (24);

The first traction rope (26) bypasses the first guide device (21) and the second guide device (22) respectively and forms a first suspension point (201) and a second suspension point (202) which are positioned at two sides of the first guide device (21), and a third suspension point (203) and a fourth suspension point (204) which are positioned at two sides of the second guide device (22) on the car frame (3).

2. An elevator construction according to claim 1, characterized in that the first guide means (21) and the second guide means (22) are arranged opposite to each other on top of the car frame (3), the first guide means (21) comprising a first car guide wheel (211) and a second car guide wheel (212), the second guide means (22) comprising a third car guide wheel (221) and a fourth car guide wheel (222), the third guide means (23) comprising a first car diverting pulley (231) and a second car diverting pulley (232).

3. The elevator structure of claim 2, wherein the first car guide wheel (211), the second car guide wheel (212), the third car guide wheel (221) and the fourth car guide wheel (222) are sequentially arranged along a central axis in a length direction of the car frame (3), rotation planes of the first car guide wheel (211), the second car guide wheel (212), the third car guide wheel (221) and the fourth car guide wheel (222) are all located on a vertical plane of the central axis, a first interval region (205) is arranged between the second car guide wheel (212) and the third car guide wheel (221), the first car diverting pulley (231) and the second car diverting pulley (232) are arranged above the first interval region (205), and the first rope hitch plate (24) is arranged above the fourth car guide wheel (222).

4. The elevator structure of claim 2, wherein the first car guide wheel (211) and the fourth car guide wheel (222), the second car guide wheel (212) and the third car guide wheel (221) are disposed opposite to each other, a second spacing area (206) is disposed between the second car guide wheel (212) and the third car guide wheel (221), the first car diverting pulley (231) and the second car diverting pulley (232) are disposed above the second spacing area (206), and the first rope hitch plate (24) is disposed above the fourth car guide wheel (222).

5. An elevator construction according to claim 1, characterized in that the suspension means comprise a hoisting machine (27), the output shaft of the hoisting machine (27) being connected with the traction sheave (25), the third guiding means (23) and the first rope hitch (24) being arranged on one side of the hoisting machine (27).

6. The elevator structure for preventing unbalanced load of a car according to claim 5, further comprising a second rope hitch (41) provided at one side of the traction machine (27), wherein a fourth guiding device (42) is provided at the top of the counterweight (4), and one end of the first traction rope (26) wound around the traction sheave (25) bypasses the fourth guiding device (42) and is connected to the second rope hitch (41).

7. The elevator structure of claim 6, wherein the counterweight device (4) includes a first counterweight (43) and a second counterweight (44) that are disposed adjacent to each other, the fourth guide device (42) includes a first counterweight guide wheel (421) disposed at the top of the first counterweight (43), a second counterweight guide wheel (422) disposed at the top of the second counterweight (44), a fifth guide device is disposed between the hoisting machine (27) and the second rope hitch (41), the fifth guide device includes a counterweight diverting sheave (45), and one end of the first traction rope (26) disposed on the traction sheave (25) sequentially bypasses the first counterweight guide wheel (421), the counterweight diverting sheave (45), and the second counterweight guide wheel (422) and is connected to the second rope hitch (41).

8. An elevator construction according to claim 1, characterized in that the elevator construction further comprises a car guide arrangement comprising a first car guide (51), a second car guide (52), a third car guide (53) and a fourth car guide (54) symmetrically distributed on both sides of the car frame (3), the car frame (3) being in sliding connection with the first car guide (51), the second car guide (52), the third car guide (53) and the fourth car guide (54) via car guide shoes (55), respectively.

9. An elevator construction according to claim 1, characterized in that the elevator construction further comprises counterweight guide rail means in sliding connection with the counterweight means (4).

10. An elevator arrangement as defined in claim 1, characterized in that the elevator arrangement further comprises a speed limiter (71), the top of the car frame (3) further being provided with a linkage, the speed limiter (71) being connected to the linkage by means of a second traction rope (72).