CN211056449U

CN211056449U - Overload monitoring mechanism for indoor elevator

Info

Publication number: CN211056449U
Application number: CN201921186028.3U
Authority: CN
Inventors: 李长明; 朱小云; 车超超; 丁明芳; 李少弘; 焦玉
Original assignee: Shandong Bunse Elevator Co ltd
Current assignee: Shandong Bunse Elevator Co ltd
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-07-21
Anticipated expiration: 2029-07-25

Abstract

The utility model relates to a domestic indoor elevator field, in particular to indoor elevator is with overload monitoring mechanism, it includes: a fixed beam; two diverting pulleys; the lifting piece comprises a reel and a cable, the reel is arranged between the two reversing pulleys and is offset from the midpoint of the connecting line of the two reversing pulleys, the cable extends upwards after being reversed by the two reversing pulleys, and the lengths of the cables on the two sides of the reel are different; the driving piece comprises a motor element and a connecting seat, one end of the motor element is connected with the reel, the other end of the motor element extends to the end part of the fixed beam far away from the reel, one end of the motor element is connected with the fixed beam through the connecting seat, and the other end of the motor element forms an indicating end; and the monitoring piece is suitable for monitoring the displacement of the indicating end. The utility model discloses can monitor through the displacement to the instruction end of motor parts, and then obtain the monitoring to the car load, can be stable, accurate to the car monitoring of whether overloading, the effectual problem that exists of having solved among the prior art.

Description

Overload monitoring mechanism for indoor elevator

Technical Field

The utility model relates to a domestic indoor elevator field, in particular to indoor elevator is with overload monitoring mechanism.

Background

The household indoor elevator is used as a household small indoor elevator and is particularly widely applied to villas with 2-3 floors. In consideration of the reason that the space occupied by the home elevator cannot be too large, the home elevator generally has a hoistway-free vertical guide rail between floors, and the driving device of the home elevator moves together with the car of the home elevator. Specifically, a motor is used for driving a winding drum to wind and unwind two mooring ropes wound on two pulleys to realize the lifting of the household indoor elevator. In the existing household indoor elevator, overload is monitored by a weighing sensor, and by adopting the mode, the sensor is in a repeatedly changing pressure environment for a long time, so that errors and instability are easy to occur; moreover, a mounting structure of a weighing sensor needs to be arranged on the car, so that the car structure is complex.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an indoor elevator is with overload monitoring mechanism can monitor through the displacement to the instruction end of motor parts, and then obtains the monitoring to the car load, can be stable, accurate to the car whether overload a monitoring, the effectual problem that exists of having solved among the prior art.

In order to solve the problem, the utility model provides an indoor elevator is with overload monitoring mechanism, include: the middle section of the fixed beam is hinged with the top of the elevator car; the two reversing pulleys are respectively arranged at two ends of the fixed beam; the lifting piece is connected with the fixed beam and comprises a reel with a rope groove and a cable wound on the reel, the reel is arranged between the two reversing pulleys and is offset from the midpoint of the connecting line of the two reversing pulleys, the cable is rotated by the two reversing pulleys to extend backwards and upwards, and the lengths of the cables on the two sides of the reel are different; the driving piece comprises an electric element and a connecting seat, one end of the electric element is connected with the reel, the other end of the electric element extends to the end part of the fixed beam far away from the reel, one end of the electric element is connected with the fixed beam through the connecting seat, and the other end of the electric element forms an indicating end; a displacement monitoring member adapted to monitor displacement of the indicator tip.

Further, the connecting seat is arranged at one end of the electric machine part connected with the reel.

Further, the motor part include with the gearbox that the reel links to each other, with the motor that the gearbox links to each other, the gearbox pass through the connecting seat with the fixed beam links to each other, the motor deviates from one end of gearbox forms indicate the end.

Further, the connection socket includes: a flat plate portion connected to the fixed beam; and the vertical plate part is connected with the top of the flat plate part and is connected with the end part of the gearbox, which deviates from the motor base.

Further, the displacement monitoring piece comprises a contact switch, the contact switch is arranged on one of the indicating end or the car, a triggering portion is arranged on the other one of the indicating end or the car, and when the displacement of the indicating end is larger than a set threshold value, the triggering portion triggers the contact switch.

Further, the contact switch is connected with the car; the monitoring mechanism further comprises a mounting support connected with the indicating end, a threaded hole is formed in the mounting support, the monitoring mechanism further comprises a push rod which penetrates through the threaded hole in a screwing mode, the push rod is approximately arranged along the moving direction of the indicating end, and the push rod faces towards the end portion of the contact switch to form the triggering portion.

Or the displacement monitoring piece is a displacement sensor connected with the indicating end.

Furthermore, an included angle is formed between the axis of the motor and the fixed beam, and the included angle is an acute angle.

The beneficial effects of the utility model reside in that, the utility model provides an indoor elevator is with overload monitoring mechanism can monitor through the displacement to the instruction end of motor parts, and then obtains the monitoring to the car load, can be stable, accurate to the car monitoring of whether overloading, the effectual problem that exists among the prior art of having solved.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

FIG. 3 is a partial schematic view of the structure of the electric machine in the embodiment of FIG. 1.

Fig. 4 is a side view of the motor part when the car does not reach the rated load in the embodiment shown in fig. 1.

Fig. 5 is a side view of the motor element of the embodiment of fig. 1 when the car reaches rated load.

FIG. 6 is a schematic top view of a portion of the electrical components of the embodiment shown in FIG. 1.

Wherein: 1. a fixed beam; 2. a car; 3. a diverting pulley; 4. coiling; 5. a cable; 6. rope grooves; 7. An electric machine member; 701. a gearbox; 702. a motor; 8. a connecting seat; 801. a flat plate portion; 802. a vertical plate portion; 9. an indicating end; 10. a contact switch; 11. a trigger section; 12. mounting a bracket; 13. a push rod.

Detailed Description

In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

In addition, in the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those 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.

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; either directly or indirectly through intervening media, either internally or in any other relationship. However, the direct connection means that the two bodies are not connected to each other by the intermediate structure but connected to each other by the connecting structure to form a whole. 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. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the present invention, as shown in fig. 1 to 6, there is provided an overload monitoring mechanism for an indoor elevator, comprising: the middle section of the fixed beam 1 is hinged with the top of the elevator car 2; the two reversing pulleys 3 are respectively arranged at two ends of the fixed beam 1; the lifting piece is connected with the fixed beam 1 and comprises a reel 4 with a rope groove 6, a cable 5 wound on the reel 4 and a motor piece 7 connected with the reel 4, the reel 4 is arranged between the two reversing pulleys 3 and is offset from the middle point of the connecting line of the two reversing pulleys 3, the cable 5 extends upwards after being reversed by the two reversing pulleys 3, and the lengths of the cables 5 on the two sides of the reel 4 are different; the driving piece comprises a motor piece 7 and a connecting seat 8, one end of the motor piece 7 is connected with the reel 4, the other end of the motor piece extends to the end part, far away from the reel 4, of the fixed beam 1, one end of the motor piece 7 is connected with the fixed beam 1 through the connecting seat 8, and the other end of the motor piece forms an indicating end 9; a displacement monitoring member adapted to monitor the displacement of the indicator end 9.

The utility model is suitable for a domestic small-size indoor elevator, car 2's size is less among this kind of indoor elevator, and reel 4 is difficult to place in the intermediate position at car 2 top. The utility model discloses an overload monitoring structure is when using, because reel 4 is in the mid point biasing of two 3 lines of switching-over pulleys for the length of the hawser 5 of reel 4 both sides is different, and then makes under the effect of car 2's load, and the length deflection of the hawser 5 of reel 4 both sides is different, makes car 2 crooked easily. The utility model discloses an overload monitoring mechanism rotates fixed beam 1 of being connected through setting up and car 2, and switching-over pulley 3 sets up on fixed beam 1, and then at the length deflection of the hawser 5 of 4 both sides of reel different, and fixed beam 1 can 2 rotations of car relatively, and then can rotate the difference in order to adapt to 4 both sides of reel hawser 5 length variations through fixed beam 1, and simultaneously, cooperation in the middle of car 2's the guide pulley and indoor elevator's the slide rail keeps car 2's approximate balance.

Wherein, when getting into people or article in the indoor elevator, the load grow of car 2 for hawser 5 elastic deformation extension, because the length of the hawser 5 of reel 4 both sides is different, makes the length variation of the hawser 5 of reel 4 both sides different, and then makes fixed beam 1 incline for car 2 relatively, and then makes the displacement of instruction end 9 production relative car 2. When the displacement of instruction end 9 surpassed the settlement threshold value, can know fixed beam 1 and rotated and surpassed certain angle, and then can know 4 both sides hawser 5 of reel reach certain variation, and then can know 2 loads of car and surpass certain weight, can monitor through the displacement to instruction end 9 from this to monitor 2 loads of car.

The utility model discloses an among the monitoring mechanism, not only through reel 4 biasing, can be applicable to miniature domestic indoor elevator, still can monitor the displacement of instructing end 9 on the electric parts 7 and monitor the load of car 2.

The utility model discloses a displacement monitoring mountable is in car 2's top motor part 7 department, need not to set up weighing sensor's mounting structure in car 2's bearing structure department, the utility model discloses a structure is simpler, and displacement sensor easily installs, maintains, especially, the utility model discloses a displacement to the instruction end 9 of motor part 7 monitors, and motor part 7 sets up in the upside of fixed beam 1, and the distance in vertical side is great relatively between motor part 7 and the car 2, installs displacement monitoring more easily.

Furthermore, the utility model discloses a mode of 9 displacements of monitoring indicator terminal monitors the load of car 2, compares in weighing sensor's mode, and the operating condition of displacement monitoring spare is more stable, accurate.

More specifically, the connecting seat 8 is disposed at an end of the motor 7 connected to the reel 4. As shown in fig. 1 to 6, since the reel 4 and the motor element 7 are connected, by arranging the motor 702 at the end of the motor element 7 close to the reel 4, the motor 702 can be located close to the center of gravity between the reel 4 and the motor element 7, making the lifting member more stable. Especially, it is important that when the whole indoor elevator is used, because the cable 5 transmits the horizontal force to the reel 4, so that the reel 4 can generate a certain horizontal moment, the motor 702 seat is arranged at the end part of the motor part 7 near the reel 4, the moment arm of the horizontal force generated by the reel 4 can be shortened, and the moment generated by the horizontal force generated by the reel 4 to the motor 702 seat is reduced.

More specifically, as shown in fig. 1, the electric mechanism 7 includes a gear box 701 connected to the reel 4, and an electric motor 702 connected to the gear box 701, the gear box 701 is connected to the fixed beam 1 through a connecting seat 8, and an end of the electric motor 702 facing away from the gear box 701 forms the indicating end 9.

As shown in fig. 2, one end of the motor 702 departing from the transmission case 701 forms an indication end 9, and since the car 2 of the household indoor elevator is small, the motor 702 extends to the car 2 on the other side of the reel 4, so that the motor 702 is convenient to mount, and meanwhile, the indication end 9 can be far away from a hinge point of the fixed beam 1 and the car 2, so that the indication end 9 has relatively large displacement when the fixed beam 1 rotates by a certain angle, which is more beneficial to monitoring.

More specifically, the connecting seat 8 comprises a flat plate portion 801 connected with the fixed beam 1, and a vertical plate portion 802 connected with the top of the flat plate portion 801 and connected with the end of the gearbox 701, which is far away from the motor 702, so that when the motor element 7 is installed, the flat plate portion 801 is connected with the fixed beam 1 and the flat plate portion 801 is connected with the gearbox 701, wherein the connecting seat 8 is integrally L-shaped, the connecting seat 8 is respectively connected with the fixed beam 1 and the gearbox 701 through bolts, and the connecting seat 8 is arranged at one end of the gearbox 701, which is far away from the motor 702, so that the connecting seat 8 can be conveniently connected with the fixed beam 1 on the upper side of the car 2.

In a preferred embodiment, more specifically, the displacement monitoring part includes a contact switch 10, the contact switch 10 is disposed on one of the indication end 9 or the car 2, a trigger part 11 is disposed on the other of the indication end 9 or the car 2, and when the displacement of the indication end 9 is greater than a set threshold value, the trigger part 11 triggers the contact switch 10.

Thus, by setting the displacement monitoring member as the contact switch 10, the corresponding indicating end 9 can be moved to a position when the car 2 is in a rated load state, so that the trigger part 11 is in contact with the contact switch 10, and the contact switch 10 is triggered, thereby monitoring whether the car 2 is overloaded or not.

More specifically, as shown in fig. 3 to 5, the contact switch 10 is connected to the car 2; the monitoring mechanism further comprises a mounting bracket 12 connected with the indicating end 9, a threaded hole is formed in the mounting bracket 12, the monitoring mechanism further comprises a push rod 13 which penetrates through the threaded hole in a screwing mode, the push rod 13 is arranged along the moving direction of the indicating end 9 approximately, and the push rod 13 faces the end portion of the contact switch 10 to form the trigger portion 11.

By providing the contact switch 10 on the car 2, the line of the contact switch 10 can be stabilized. The trigger part 11 is formed at the end of the push rod 13, so that the trigger part 11 can accurately trigger the contact switch 10, and the distance between the trigger part 11 and the contact switch 10 can be adjusted by rotating the push rod 13, so that the overload weight of the load of the car 2 can be conveniently adjusted. The push rod 13 is disposed substantially along the moving direction of the indication end 9, that is, the push rod 13 is disposed substantially along the tangential direction of the rotation of the indication end 9, wherein when the trigger 11 triggers the contact switch, the push rod 13 is tangent to a circle of the trigger 11 with the hinge point of the fixed beam 1 as the center.

Of course, in an alternative embodiment, the contact switch 10 may be provided on the motor 702 and the trigger 11 on the car 2. Furthermore, the arrangement of the triggering portion 11 is not limited to the push rod 13, and in an alternative embodiment, the triggering portion 11 may be a projection fixedly connected to the motor 702 or a projection connected to the car 2.

Of course, the displacement monitoring member may also have other forms, for example, in alternative embodiments, the displacement monitoring member is a displacement sensor connected to the indicator end 9.

A further optimization is that, as shown in fig. 6, an included angle is formed between the axis of the motor 702 and the fixed beam 1, and the included angle is an acute angle.

Therefore, the space above the cage 2 can be fully utilized, the motor 702 is convenient to mount, and the elevator is suitable for small-sized household indoor elevators. As shown, the motor 702 is inclined outward away from the fixed beam 1 in a direction toward the indication end 9, so that the motor 702 can be suitable for being installed with a long length, and a monitoring part can be conveniently arranged at the indication end 9.

In a preferred embodiment, the arrangement can be such that after the whole indoor elevator is installed and leveled, a certain weight of articles can be loaded in the car 2, so that the car 2 reaches the rated load, at this time, the displacement of the moving indicating end 9 is the set threshold, so that when the indoor elevator is used daily, when the displacement of the indicating end 9 exceeds the set threshold, the load of the car 2 reaches the rated load.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. An overload monitoring mechanism for an indoor elevator, comprising:

the middle section of the fixed beam is hinged with the top of the elevator car;

the two reversing pulleys are respectively arranged at two ends of the fixed beam;

the lifting piece is connected with the fixed beam and comprises a reel with a rope groove and a cable wound on the reel, the reel is arranged between the two reversing pulleys and is offset from the midpoint of the connecting line of the two reversing pulleys, the cable is rotated by the two reversing pulleys to extend backwards and upwards, and the lengths of the cables on the two sides of the reel are different;

the driving piece comprises an electric element and a connecting seat, one end of the electric element is connected with the reel, the other end of the electric element extends to the end part of the fixed beam far away from the reel, one end of the electric element is connected with the fixed beam through the connecting seat, and the other end of the electric element forms an indicating end;

a displacement monitoring member adapted to monitor displacement of the indicator tip.

2. The overload monitoring mechanism for an indoor elevator according to claim 1, wherein the connecting base is provided at an end of the motor member connected to the reel.

3. The overload monitoring mechanism for the indoor elevator as claimed in claim 2, wherein the motor member comprises a gearbox connected with the reel, and a motor connected with the gearbox, the gearbox is connected with the fixed beam through a connecting seat, and one end of the motor, which is far away from the gearbox, forms the indicating end.

4. The overload monitoring mechanism for an indoor elevator according to claim 3, wherein the connection seat includes:

a flat plate portion connected to the fixed beam;

and the vertical plate part is connected with the top of the flat plate part and is connected with the end part of the gearbox, which deviates from the motor base.

5. The overload monitoring mechanism for an indoor elevator according to claim 3, wherein the displacement monitoring member includes a contact switch provided on one of the indicating end or the car, and a triggering portion provided on the other of the indicating end or the car, the triggering portion triggering the contact switch when the displacement of the indicating end is greater than a set threshold value.

6. The overload monitoring mechanism for an indoor elevator according to claim 5, wherein the contact switch is connected to the car; the monitoring mechanism further comprises a mounting support connected with the indicating end, a threaded hole is formed in the mounting support, the monitoring mechanism further comprises a push rod which penetrates through the threaded hole in a screwing mode, the push rod is approximately arranged along the moving direction of the indicating end, and the push rod faces towards the end portion of the contact switch to form the triggering portion.

7. The overload monitoring mechanism for an indoor elevator according to claim 3, wherein the displacement monitoring member is a displacement sensor connected to the indicating end.

8. The overload monitoring mechanism for an indoor elevator according to claim 3, wherein an included angle is formed between the axis of the motor and the fixed beam, and the included angle is an acute angle.