CN214456053U - Elevator without machine room - Google Patents

Abstract

The utility model relates to a no computer lab elevator, including elevator well, hauler, rope sheave assembly, car, be used for guiding the car lift operation car guide rail, to heavy and guide to heavy lift operation to heavy guide rail. The traction machine is arranged at the top of the well. The rope wheel component is arranged in the elevator shaft and is in driving connection with the traction machine. The traction machine is fixed on the counterweight guide rail and the car guide rail positioned on the counterweight side, and the car and the counterweight are movably connected with the rope pulley assembly and can move up and down in the elevator shaft. Through installing the hauler at the well top, even meet torrential rain weather like this, the rainwater gets into the well pit, and the hauler at well top also can not submergence to ponding in the well pit to avoid the hauler to damage, reduce the fault rate of elevator. In the transformation process, only the top hanging wheel at the top of the well is dismantled, well parts of the original machine room-less elevator are reserved, and the parts can still be used for the new machine room-less elevator, so that the transformation cost is reduced, and the construction period is shortened.

Description

Elevator without machine room

Technical Field

The utility model relates to an elevator technical field especially relates to a no computer lab elevator.

Background

In machine roomless elevators, the hoisting machine is usually mounted in a hoistway pit, which is often the lowest position in the building. When the heavy rain weather occurs, rainwater is easy to seep into the well pit, and if accumulated water in the well is not cleaned in time, the traction machine is soaked in the rainwater and is easily damaged. The traction machine is one of the most core components of the elevator, the damage of the traction machine can cause the elevator to be incapable of operating normally, the use of a user is influenced, and meanwhile, the maintenance cost can be increased by maintaining the damaged traction machine. Moreover, even if the elevator is repaired and used again, the same problem still occurs if the elevator meets heavy rain again, and the use of the elevator is greatly influenced.

SUMMERY OF THE UTILITY MODEL

Therefore, the elevator without the machine room is needed to be provided, the damage of the traction machine after water enters a pit of a shaft well can be avoided, and the safe and reliable work of the traction machine is ensured.

A machine roomless elevator, comprising:

an elevator hoistway, the elevator hoistway having a hoistway top and a hoistway pit;

the traction machine is arranged at the top of the well;

the rope pulley assembly is arranged in the elevator shaft and is in driving connection with the traction machine; and

the traction machine comprises a car, a car guide rail for guiding the car to move up and down, a counterweight and a counterweight guide rail for guiding the counterweight to move up and down, wherein the traction machine is fixed on the counterweight guide rail and the car guide rail positioned on the counterweight side; the car with to the weight average with rope sheave subassembly swing joint and can be in the operation of going up and down in the elevator well.

In one embodiment, the machine room-less elevator further comprises a top hanger mounted to the two counterweight guide rails at the top of the hoistway and to the car guide rail on the counterweight side, the hoisting machine being mounted to the top hanger; or, no computer lab elevator still includes the fixing base, the fixing base install in two at well top counterweight guide rail and the car guide rail that is located counterweight side, the hauler install in the fixing base.

In one embodiment, the two counterweight guide rails are located on either side of the car guide rail centerline.

In one embodiment, a projection of the machine on the hoistway pit is not coincident with a projection of the car on the hoistway pit.

In one embodiment, the rope sheave assembly comprises a rope winding body, a car diversion sheave and a counterweight diversion sheave, the counterweight diversion sheave is arranged on the counterweight, the car diversion sheave is arranged on the car, and the rope winding body is wound on the car diversion sheave, a traction sheave of the traction machine and the counterweight diversion sheave.

In one embodiment, the rope outlet points at two ends of a traction sheave of the traction machine are close to or coincident with the rope outlet point of the car diversion sheave and the rope outlet point of the counterweight diversion sheave respectively.

In one of the embodiments, the counterweight diverting pulleys are parallel to the central connecting surface between the counterweight guide rails.

In one embodiment, the counterweight and the hoisting machine are disposed on the same side of the car, the counterweight extends in the depth direction of the car, the counterweight is disposed in parallel with the depth direction of the car, and the traction sheave of the hoisting machine is disposed between the car diversion sheave and the counterweight diversion sheave.

In one embodiment, the rope sheave assembly further includes a car rope and a counterweight rope, which are disposed at two ends of the rope winding body, and the car rope and the counterweight rope are respectively disposed at two sides of the car in the width direction and connected to the top of the hoistway.

In one embodiment, the car diverting pulleys are provided in two, and the two car diverting pulleys are arranged at intervals in the width direction of the car bottom.

Foretell no computer lab elevator, when reforming transform, with all top hanging wheel dismantlements at elevator well top earlier, later install the hauler at the well top, at last with rope sheave assembly and hauler drive connection. Therefore, under the condition that the traction machine outputs power, the lift car and the counterweight can lift and move in the lift shaft, and normal operation of the machine room-less elevator after transformation is realized. Through installing the hauler at the well top, even meet torrential rain weather like this, the rainwater gets into the well pit, and the hauler at well top also can not submergence to ponding in the well pit to avoid the hauler to damage, reduce the fault rate of elevator. Therefore, the maintenance cost caused by bubble damage can be saved, and the normal operation of the elevator without the machine room can be ensured. In addition, in the transformation process, only the top hanging wheel at the top of the hoistway is removed, and a plurality of hoistway components of the original machine room-less elevator are reserved and can still be used for the new machine room-less elevator, so that the transformation cost can be reduced, and the construction period can be shortened. In addition, the wheel axis of the traction wheel of the traction machine and the width direction of the lift car are arranged in an included angle mode, so that the abrasion between the traction and the rope winding body is favorably reduced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic diagram of a rope winding structure of an original elevator without a machine room according to the present invention;

fig. 2 is a top view of the conventional machine roomless elevator shown in fig. 1;

fig. 3 is a schematic structural view illustrating a car-side top hanging sheave and a counterweight-side top hanging sheave of the conventional elevator without machine room shown in fig. 1 are mounted on a top hanging frame;

fig. 4 is a schematic structural view of the conventional machine room-less elevator shown in fig. 1, in which a traction machine is mounted on a base;

fig. 5 is a schematic diagram of a rope winding structure of a machine room free elevator according to an embodiment of the present invention after modification;

fig. 6 is a modified plan view of the machineroom-less elevator shown in fig. 5;

fig. 7 is a schematic structural view of the modified machine-roomless elevator shown in fig. 5 with the traction machine mounted on the top hanger;

fig. 8 is a schematic structural view of a modified hoistway pit base of the machine room-less elevator shown in fig. 5.

Reference numerals: 10. an elevator hoistway; 11. a hoistway top; 12. a well pit; 20. a traction machine; 21. a traction sheave; 30. a car; 40. a counterweight; 50. a rope winding body; 60. a car diverting pulley; 70. a counterweight sheave; 80. a car rope head; 81. a counterweight rope head; 90. a top hanging wheel; 91. a hanging wheel is hung at the top of the side of the car; 92. hanging a hanging wheel at the top of the heavy side; 93. a top hanger; 100. a base.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

Referring to fig. 1, fig. 1 shows a schematic diagram of a rope winding structure of a machine room free elevator before transformation. Before transformation, the machine room free elevator comprises an elevator shaft 10, a traction machine 20, a car 30, a car diverting pulley 60 arranged at the bottom of the car 30, a rope winding body 50, a counterweight 40, a counterweight diverting pulley 70 arranged at the counterweight 40 and a top hanging wheel 90. The top hanging sheave 90 includes a car-side top hanging sheave 91 and a counterweight-side top hanging sheave 92. The elevator shaft 10 is provided with a shaft top 11 and a shaft pit 12, a car-side top hanging sheave 91 and a counterweight-side top hanging sheave 92 are provided on the shaft top 11, and the hoisting machine 20 is provided on the shaft pit 12. The rope winding mode before modification is as follows: the rope winding body 50 is wound around the car return sheave 60, the car side top hanging sheave 91, the traction sheave 21, the counterweight side top hanging sheave 92, and the counterweight return sheave 70.

Referring to fig. 2, fig. 2 is a plan view of the machineroom-less elevator shown in fig. 1 before transformation. When viewed from above the hoistway before the modification, the counterweight 40 is located on one of the sides of the car 30, and the car-side top hanging sheave 91, the counterweight-side top hanging sheave 92, and the traction sheave 21 are located on the side of the car 30 in the same direction as the counterweight 40.

Referring to fig. 5 and 6, an embodiment of the present invention provides a machine room-less elevator, including an elevator shaft 10, a traction machine 20, a sheave assembly, a car 30, a car guide rail for guiding the car 30 to move up and down, a counterweight 40, and a counterweight guide rail for guiding the counterweight 40 to move up and down. The elevator shaft 10 is provided with a shaft ceiling 11 and a shaft pit 12, and the hoisting machine 20 is provided on the shaft ceiling 11. The sheave assembly is disposed within the elevator hoistway 10 and is drivingly connected to the machine 20. The hoisting machine 20 is fixed to a counterweight guide rail and a car guide rail on the counterweight side, and the car 30 and the counterweight 40 are both movably connected to the sheave assembly and can move up and down in the elevator shaft 10.

It should be noted that, referring to fig. 1, fig. 2, fig. 5 and fig. 6, the elevator without machine room is obtained by modifying the original elevator without machine room. The elevator shaft 10, the car 30, the car guide rails, the counterweight 40 and the counterweight guide rails are all elevator components of an original machine room-less elevator, and the elevator components are not detached and replaced, and the installation positions are not changed, so that the elevator components are directly used in a new machine room-less elevator. In the process of modifying the machine room-less elevator, only the top hanging sheaves 90 of the hoistway top 11 are removed, that is, the car-side top hanging sheave 91 and the counterweight-side top hanging sheave 92 are removed, and the hoisting machine 20 is mounted on the hoistway top 11. The hoisting machine 20 of the conventional machine-room-less elevator is removed from the hoistway pit 12 or remains in the hoistway pit 12, and if the conventional hoisting machine 20 remains in the hoistway pit 12, the conventional hoisting machine 20 is no longer used as an elevator component.

When the machine room-less elevator is modified, all the top hanging wheels 90 at the top of the elevator shaft 10 are detached, then the traction machine 20 is installed on the counterweight guide rail and the car guide rail at the top 11 of the shaft, and finally the rope wheel assembly is in driving connection with the traction machine 20. In this way, the car 30 and the counterweight 40 can be moved up and down in the elevator shaft 10 under the condition that the hoisting machine 20 outputs power, and normal operation of the modified machine room-less elevator is realized. By installing the hoisting machine 20 on the hoistway top 11, even if rainwater enters the hoistway pit 12 in heavy rain, the hoisting machine 20 on the hoistway top 11 is not submerged by accumulated water in the hoistway pit 12, so that damage to the hoisting machine 20 is avoided, and the failure rate of the elevator is reduced. Therefore, the maintenance cost caused by bubble damage can be saved, and the normal operation of the elevator without the machine room can be ensured. In addition, in the transformation process, only the top hanging wheel 90 of the hoistway top 11 is removed, and a plurality of hoistway components of the original machine room-less elevator are reserved and can still be used by the new machine room-less elevator, so that the transformation cost can be reduced, and the construction period can be shortened.

In one embodiment, the machine 20 is located at the top of the hoistway 11 and the hoistway pit 12 is not provided with the machine 20. In fig. 1, 4, and 8, before the machine room-less elevator is modified, the conventional hoisting machine 20 is installed in the hoistway pit 12; specifically, the hoistway pit 12 is provided with a base 100, and the existing hoisting machine 20 is attached to the base 100. When the elevator without machine room is modified, the original hoisting machine 20 is detached from the base 100, and thus the hoistway pit 12 is provided with only the base 100. In this way, the normal operation of the car 30 can be ensured while avoiding the interference of the movement of the car 30 with the existing hoisting machine 20 in the hoistway pit 12.

Of course, referring to fig. 5, in other embodiments, the existing hoisting machine 20 may not be removed in order to shorten the construction period without affecting the normal use of the modified elevator. However, the existing hoisting machine 20 after the modification of the elevator is no longer used as an elevator component.

In one embodiment, referring to fig. 5 and 7, the machineroom-less elevator further includes a top hanger 93, the top hanger 93 is mounted to two counterweight guide rails of the top 11 of the hoistway and a car guide rail located at a counterweight side, and the traction machine 20 is mounted to the top hanger 93. It is to be understood that, referring to fig. 1, 3 and 7, the top hanger 93 is a component of an existing machine-roomless elevator, and the traction machine 20 is directly mounted on the top hanger 93 after the car-side top hanger sheave 91 and the counterweight-side top hanger sheave 92 are removed from the top hanger 93. In this way, the hoisting machine 20 can be securely and reliably attached to the hoistway ceiling portion 11, and the modification cost and the construction period can be reduced. In addition, the hoisting machine 20 is mounted on the car guide rail and the two counterweight guide rails through the top hanger 93, that is, the hoisting machine 20 is mounted on the three guide rails to form a triangular support surface, so that the structure is more stable, and the hoisting machine 20 is not prone to toppling.

Of course, in other embodiments, the machine room-less elevator further includes a fixing base, the fixing base is disposed on two counterweight guide rails of the hoistway top portion 11 and a car guide rail located on the counterweight side, and the traction machine 20 is mounted on the fixing base. It is understood that the original top hanger 93 is removed, a fixing base is installed at the hoistway top 11, and the traction machine 20 is installed at the fixing base. In this way, the hoisting machine 20 can be securely and reliably attached to the hoistway ceiling portion 11, and the modification cost and the construction period can be reduced. In addition, the traction machine 20 is mounted on the car guide rail and the two counterweight guide rails through the fixing seat, that is, the traction machine 20 is mounted on the three guide rails to form a triangular support surface, so that the structure is more stable, and the traction machine 20 is not easy to overturn.

Further, two counterweight guide rails are respectively positioned on two sides of the central line of the car guide rail. Thus, the counterweight guide track gauge is increased, i.e., the width of the counterweight 40 is increased; for the same weight of the counterweight housing, the height can be less, and thus the effect on the machine 20 is less when the counterweight 40 is traveling upward, while the top floor height can be made smaller.

In one embodiment, referring to fig. 6, the projection of the machine 20 on the hoistway pit 12 is not coincident with the projection of the car 30 on the hoistway pit 12. In this way, the hoisting machine 20 mounted on the hoistway top 11 does not collide with the car 30 in the lifting operation, and the potential safety hazard that the car 30 and the hoisting machine 20 collide with each other when the hoisting machine 20 is disposed in the hoistway pit 12 is eliminated, thereby ensuring the normal lifting operation of the car 30.

Specifically, in the present embodiment, referring to fig. 5 and 6, the modified hoisting machine 20 is a thin hoisting machine 20 having a small dimension in the thickness direction parallel to the hoisting rotation axis, and the projection of the modified hoisting machine 20 on the hoistway pit 12 does not overlap with the projection of the car 30 on the hoistway pit 12, so that the hoisting machine 20 does not affect the lifting operation of the car 30, and the normal operation of the car 30 is ensured.

In one embodiment, referring to fig. 6, the wheel axis of the traction sheave 21 of the traction machine 20 is arranged at an angle to the width direction of the car 30. In this way, it is advantageous to reduce the wear between the traction sheave 21 and the roping 50.

In one embodiment, referring to fig. 5 and 6, the sheave assembly includes a rope winding body 50, a car diverting sheave 60, and a counterweight diverting sheave 70, the counterweight diverting sheave 70 is provided at the counterweight 40, the car diverting sheave 60 is provided at the car 30, and the rope winding body 50 is wound around the car diverting sheave 60, the traction sheave 21 of the traction machine 20, and the counterweight diverting sheave 70. When the hoisting machine 20 drives the traction sheave 21 to rotate in this way, the synchronous-motion rope winding body 50 slides on the car return sheave 60 and the counterweight return sheave 70, so that the car 30 and the counterweight 40 can move up and down in the elevator shaft 10, and normal operation of the modified elevator without a machine room is realized. In addition, the rope winding body 50 mode after the transformation is greatly simplified, the length of the rope winding body 50 can be shortened, the running loss is reduced, and the running efficiency and the riding comfort are improved.

Optionally, the roping 50 is a steel rope. The steel wire rope has high strength, and has better wear resistance and durability. Of course, in other embodiments, the rope winding body 50 may be other members, and is not limited thereto.

In the process of modifying the machine roomless elevator, the existing rope winding body 50 is used, the existing rope winding body 50 is wound around the car return sheave 60, the traction sheave 21 of the hoisting machine 20, and the counterweight return sheave 70, and the extra existing rope winding body 50 is cut off. Therefore, the original rope winding body 50 is reserved for use, so that the cost of the machine room-less elevator in the transformation process can be further reduced, and the resource saving is facilitated. Of course, in the course of the actual reconstruction, it is estimated that the original rope 50 is worn too much and cannot be used, and the new rope 50 can be replaced. It should be noted that, regardless of the above-described manner, the modified rope winding body 50 is greatly simplified, the length of the rope winding body 50 can be shortened, the running loss can be reduced, and the running efficiency and the riding comfort can be improved.

Further, referring to fig. 5 and 6, the rope take-off points at both ends of the traction sheave 21 of the traction machine 20 are close to or coincide with the rope take-off point of the car diverting sheave 60 and the rope take-off point of the counterweight diverting sheave 70, respectively. It will be understood that the projections of both ends of the traction sheave 21 on the hoistway pit 12 coincide with the projection of the car return sheave 60 on the hoistway pit 12 and the projection of the counterweight return sheave 70 on the hoistway pit 12, respectively, so that the wrap body 50 can be easily wrapped from the traction sheave 21 to the car return sheave 60 and the counterweight return sheave 70. Alternatively, in order to arrange the traction sheave 21, the car return sheave 60, the counterweight return sheave 70, and the like in the elevator shaft 10, projections of both ends of the traction sheave 21 on the shaft pit 12 are slightly misaligned with projections of the car return sheave 60 on the shaft pit 12 and projections of the counterweight return sheave 70 on the shaft pit 12, respectively, and such misalignment does not cause excessive wear of the sheaves.

Specifically, referring to fig. 5 and 6, one end of the traction sheave 21 near the counterweight diverting pulley 70 is located at the upper end of the counterweight diverting pulley 70. Alternatively, one end of the traction sheave 21 close to the counterweight return sheave 70 is positioned at the lower end of the counterweight return sheave 70. In this way, on the one hand, it is facilitated to wind the rope winding body 50 from the traction sheave 21 to the counterweight return sheave 70; on the other hand, excessive wear between the traction sheave 21 and the counterweight diverting pulley 70 can be avoided.

In one embodiment, referring to fig. 6, the counterweight diverting pulley 70 is parallel to the central connecting plane between the two counterweight guide rails. It should be noted that, the counterweight diverting pulley 70 of the original elevator without machine room is generally parallel to the central connecting surface between the two counterweight guide rails, and in the transformation of the elevator without machine room, the counterweight diverting pulley 70 is parallel to the central connecting surface between the counterweight guide rails, so that the counterweight frame does not need to be replaced, the transformation cost is reduced, and meanwhile, the construction period is short. In addition, the counterweight sheave 70 parallel to the center connecting surface between the counterweight guide rails is more easily installed in the counterweight housing, and the connecting structure is simpler.

In one embodiment, referring to fig. 5 and 6, the counterweight 40 and the traction machine 20 are disposed on the same side of the car 30, and the traction sheave 21 is located between the car 30 and the counterweight 40. Alternatively, the counterweight 40 and the hoisting machine 20 are provided on the left side of the car 30; alternatively, the counterweight 40 and the hoisting machine 20 are provided on the right side of the car 30. In this way, the wrap rope body 50 can be easily wrapped from the traction sheave 21 to the car return sheave 60 and the counterweight return sheave 70.

Specifically, in the present embodiment, the counterweight 40 and the hoisting machine 20 are provided on the left side of the car 30, the traction sheave 21 is positioned between the counterweight 40 and the car 30, and the rope exit points at both ends of the traction sheave 21 are close to the rope exit point of the car diverting sheave 60 and the rope exit point of the counterweight diverting sheave 70, respectively.

Specifically, referring to fig. 6, the counterweight 40 is disposed to extend in the depth direction of the car 30, and the counterweight 40 is disposed in parallel with the depth direction of the car 30. It is understood that the depth direction of the cage 30 is a direction perpendicular to the direction in which the doors are located. In this way, under the driving action of the hoisting machine 20, the counterweight 40 and the car 30 are effectively prevented from moving and interfering in the elevator shaft 10, so that the car 30 can be ensured to normally run in the elevator shaft 10. At the same time, the car 30 is also allowed to run smoothly in the elevator shaft 10, thereby improving riding comfort.

In one embodiment, referring to fig. 5 and 6, the sheave assembly further includes a car rope 80 and a counterweight rope 81 provided at both ends of the rope winding body 50, the car rope 80 and the counterweight rope 81 being respectively located at both sides in the width direction of the car 30 and connected to the top 11 of the hoistway. It is understood that the width direction of the car 30 refers to the direction in which the doors are located. In this way, the two ends of the rope winding body 50 can be connected to the hoistway top portion 11 through the car rope end 80 and the counterweight rope end 81, respectively, so that the rope winding body 50 is stably connected to the hoistway top portion 11, thereby ensuring safe operation of the car 30 in the elevator hoistway 10. In addition, the car rope head 80 and the counterweight rope head 81 are respectively arranged on two sides of the car 30 in the width direction, so that the car 30, the hoisting machine 20 and the counterweight 40 can be reasonably arranged in the elevator shaft 10, collision and interference of all parts is avoided, and normal lifting operation of the car 30 in the elevator shaft 10 is ensured.

In one embodiment, referring to fig. 5 and 6, two car diverting pulleys 60 are provided, and the two car diverting pulleys 60 are spaced apart from each other in the width direction of the bottom of the car 30. It should be understood that the width direction of the bottom of the car 30 refers to the direction in which the doors of the car 30 are located, and may also be understood as the direction in which the doors move during opening and closing. Therefore, the two car diversion sheaves 60 are stably contacted with the rope winding body 50, so that the even stress of the car 30 can be ensured, the car 30 can be kept in a horizontal posture, and the riding comfort is improved. Of course, in other embodiments, the number and the arrangement position of the car diversion sheaves 60 may be set according to actual requirements, for example, one car diversion sheave 60 is arranged, the car diversion sheave 60 is arranged on the top of the car 30, and the like.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. An elevator without machine room, characterized in that the elevator without machine room comprises:

an elevator hoistway, the elevator hoistway having a hoistway top and a hoistway pit;

the traction machine is arranged at the top of the well;

the rope pulley assembly is arranged in the elevator shaft and is in driving connection with the traction machine; and

the traction machine comprises a car, a car guide rail for guiding the car to move up and down, a counterweight and a counterweight guide rail for guiding the counterweight to move up and down, wherein the traction machine is fixed on the counterweight guide rail and the car guide rail positioned on the counterweight side; the car with to the weight average with rope sheave subassembly swing joint and can be in the operation of going up and down in the elevator well.

2. The machine room-less elevator according to claim 1, further comprising a top hanger mounted to the two counterweight guide rails and the car guide rail on the counterweight side at the top of the hoistway, the traction machine being mounted to the top hanger;

or, no computer lab elevator still includes the fixing base, the fixing base install in two at well top counterweight guide rail and the car guide rail that is located counterweight side, the hauler install in the fixing base.

3. The machine roomless elevator of claim 2, wherein the two counterweight guide rails are located on either side of the car guide rail centerline.

4. The machine roomless elevator of claim 1, wherein a projection of the machine on the hoistway pit is not coincident with a projection of the car on the hoistway pit.

5. The machine room-less elevator according to any one of claims 1 to 4, wherein the sheave assembly includes a rope winding body, a car return sheave, and a counterweight return sheave, the counterweight return sheave is provided in the counterweight, the car return sheave is provided in the car, and the rope winding body is wound around the car return sheave, a traction sheave of the traction machine, and the counterweight return sheave.

6. The machine room-less elevator according to claim 5, wherein the rope exit points at both ends of the traction sheave of the traction machine are close to or coincide with the rope exit point of the car diverting pulley and the rope exit point of the counterweight diverting pulley, respectively.

7. The machine roomless elevator of claim 5, wherein the counterweight diverting pulleys are parallel to a central connection plane between the counterweight guide rails.

8. The machine room-less elevator according to claim 5, wherein the counterweight and the hoisting machine are provided on the same side of the car, the counterweight is provided to extend in a depth direction of the car, the counterweight is provided in parallel with the depth direction of the car, and a traction sheave of the hoisting machine is provided between the car return sheave and the counterweight return sheave.

9. The machine room-less elevator according to claim 5, wherein the sheave assembly further includes a car rope end and a counterweight rope end provided at both ends of the rope winding body, the car rope end and the counterweight rope end being respectively located at both sides in the car width direction and connected to the top of the hoistway.

10. The machine room-less elevator according to claim 5, wherein there are two car diverting pulleys, and the two car diverting pulleys are disposed at intervals in the width direction of the car bottom.

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