CN110950273B

CN110950273B - Lifting device for building

Info

Publication number: CN110950273B
Application number: CN201911095817.0A
Authority: CN
Inventors: 井洪涛; 朱惜惜
Original assignee: Individual
Current assignee: Jing Hongtao
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2021-08-24
Anticipated expiration: 2039-11-11
Also published as: CN110950273A

Abstract

The invention discloses a lifting device for a building, and relates to the technical field of building equipment. The invention comprises a lifting column, a limiting column and a lifting mechanism; the lifting column is provided with a variable pitch thread; the pitch-variable thread is a thread with gradually changed thread pitch; the lifting mechanism comprises a lifting seat, a thread latch and an elastic piece; an elastic piece is fixed on the lifting seat; the elastic piece is used for limiting the thread latch up and down and elastically sliding, the limiting column penetrates through the lifting seat, and the lifting seat is connected with the peripheral side of the limiting column in a sliding manner; the lifting column is fixedly arranged with an output shaft of the motor; the output shaft of the motor provides power for rotating the lifting column, so that upward lifting force is provided for the lifting mechanism through the threads. The invention has the advantages of time saving, low equipment loss, long service life, relatively low equipment requirement under the same condition and production and manufacturing cost saving through the functions of the lifting column, the limiting column, the lifting mechanism and the variable pitch thread.

Description

Lifting device for building

Technical Field

The invention belongs to the technical field of building equipment, and particularly relates to a lifting device for a building.

Background

The spiral elevator is composed of parts such as a worm gear, a box body, a bearing, a lead screw and the like, and the lead screw can move up and down by driving the worm to rotate, so that the functions of pushing and pulling or jacking are achieved. The self-locking performance of the common tooth lead screw electric push rod and the spiral lifter is low in comprehensive transmission efficiency, most of the common tooth lead screw electric push rod and the spiral lifter have an absolute dynamic load self-locking function, and the running safety of equipment is improved; the ball screw electric push rod and the spiral elevator are not self-locked; the synchronous single speed reducing motor drives a plurality of push rods simultaneously through mechanical connection, and the synchronous lifting and absolute synchronization are realized.

The spiral elevator is used as modern lifting equipment and has wide application field, and the spiral elevator is required to be used in industries such as factories, construction sites, stages, logistics and the like, and the development of the screw elevator is very rapid; when other conditions of the spiral elevator are the same, and the screw pitch of the screw threads in the screw rod is relatively small, the thrust is large, and the transmission speed is low; when the thread pitch of the threads in the screw rod is relatively large, the thrust is small, and the transmission speed is high; namely, the spiral elevator has an index which needs to be chosen in the aspects of the thrust and the transmission speed.

When the spiral elevator used on the construction site is generally heavy in goods, not very high in lifting height, and even has a certain requirement on the precision of the lifting height; in the conventional spiral elevator, the load on the spiral elevator is large during the initial period, and the loss of the equipment is also large during the initial period of the equipment.

According to the lifting device for the building, the variable-pitch threads are arranged on the lifting column; the variable pitch thread is set to be of a structure from small to big; can learn, when the initial operation period of equipment, can reach thrust by big diminishing, transmission speed is low to high to reach and carry out by big acceleration to little to the goods, the change process of acceleration promptly is: from big to small to zero, even from zero to negative, and finally to the goods stop moving; the cargo is caused to move from zero speed, experience larger acceleration, gradually reach smaller acceleration, the acceleration is reduced to zero, start smaller deceleration and slowly larger deceleration until the cargo stops moving.

The invention is characterized in that the initial section provides larger thrust force to enable the goods to obtain larger lift force, and after the lifting speed of the goods is increased due to the larger lift force, the pitch of the pitch-variable thread is increased, so that the goods keep a smaller acceleration or a state close to a uniform speed.

Disclosure of Invention

The invention aims to provide a lifting device for a building, which solves the problem that the thrust provided by the conventional spiral lifter at the initial section is small or the transmission speed is low under the condition of sufficient thrust through the actions of a lifting column, a limiting column, a lifting mechanism and a variable pitch thread.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a lifting device for a building, which comprises a lifting column, a limiting column and a lifting mechanism;

the peripheral side surface of the lifting column is provided with variable pitch threads; the pitch-variable thread is a thread with gradually increased pitch or gradually decreased pitch; the lifting mechanism comprises a lifting seat, a thread latch and an elastic piece; an elastic piece is fixed on the lifting seat; the clamping end of the thread clamping tooth is matched with the peripheral side surface of the variable-pitch thread; the thread latch is used for thread matching on the peripheral side surface of the variable pitch thread, and the shape of the clamping end of the thread latch is matched with the shape of the cross section of the adjacent minimum thread pitch in the variable pitch thread; the elastic piece is used for limiting the thread latch up and down and elastically sliding, namely the thread latch arranged on the elastic piece can vertically slide up and down, and the maximum height difference of the up-and-down sliding is a fixed value; the limiting column penetrates through the lifting seat, and the lifting seat is connected with the peripheral side face of the limiting column in a sliding mode; the lifting column and the limiting column are fixedly arranged on the ground; the limiting column is used for limiting the lifting mechanism to only slide on the lifting column; the thread latch of the lifting mechanism is used for being matched with the periphery of the variable pitch thread; the elastic member is used for: when the pitch of the pitch-variable thread is changed, the distance between every two adjacent thread latches can be correspondingly adjusted through the action of the elastic piece; the lifting column and the output shaft of the motor 5 are fixedly installed through a coupler; the output shaft of the motor 5 provides power for rotation of the lifting column, the lifting column rotates, and the limiting column limits the lifting mechanism to rotate accordingly, so that upward lifting force is provided for the lifting mechanism through threads.

Further, the lifting column further comprises equidistant threads; the equidistant threads are connected with the starting end or the tail end of the variable-pitch threads; or the equidistant threads are arranged at the middle end of the variable pitch threads; the equidistance screw thread of lift post can make the goods carry out uniform motion, the effect of equidistance screw thread is, according to the lift demand, sets up its uniform motion at inception section or middle section or tail section.

Furthermore, the lifting seat is of a circular tube type structure; the elastic piece is of a cylindrical structure; a circular cavity is formed in the elastic piece; the peripheral side surface of the elastic part is provided with a sliding chute; a T-shaped column is matched in the sliding groove in a sliding manner; the bottom of the T-shaped column is provided with a through hole; the inner surface of the through hole is matched with a sliding column; two ends of the sliding column are fixed in the circular cavity, and two side surfaces of the bottom of the T-shaped column are provided with springs; the inner side surface of the spring is matched with the peripheral side surface of the sliding column; the top end of the T-shaped column is fixed with a thread latch; the inner wall of the lifting seat is provided with a mounting groove matched with the elastic piece; the inner surface of the mounting groove is fixedly mounted with the elastic piece.

Furthermore, the peripheral side surface of the lifting mechanism is fixed with a lifting platform for the existing construction; the lifting platform is used for placing building materials and passengers.

The invention has the following beneficial effects:

1. the invention realizes larger thrust provided at the initial section through the actions of the lifting column, the limiting column, the lifting mechanism and the variable pitch thread; when the rising speed reaches a certain degree, the thrust force is reduced, and the transmission speed rises; after the goods are lifted to a certain height, the thrust force is lower than the thrust force required by the uniform speed, namely the goods are decelerated until the goods stop; the method has the advantages of reducing equipment load initially, achieving low loss, long service life and the like; the method also has the advantages of low initial speed, high middle-stage speed and slow deceleration in later stage.

2. The lifting column is also provided with equidistant threads; the device can also realize that the goods can ascend at a constant speed at the middle running end; namely, an acceleration process of reducing the acceleration in the initial stage, a running process in the middle stage and a deceleration process of increasing the deceleration in the later stage are achieved; the method has the advantages of time saving, low equipment loss, long service life, relatively low equipment requirement under the same condition, and production and manufacturing cost saving.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings 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 it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a lifting device for building according to the present invention;

FIG. 2 is a front view of the structure of FIG. 1;

FIG. 3 is a schematic structural view of the lifting mechanism;

FIG. 4 is a top view of the structure of FIG. 3;

FIG. 5 is a schematic structural view of the elastic member;

FIG. 6 is a side view of the structure of FIG. 5;

FIG. 7 is a schematic view of the internal structure of the elastic member;

FIG. 8 is a schematic structural view of the lifting base;

FIG. 9 is a schematic view of the internal structure of the lifting base;

FIG. 10 is a schematic view of a lifting column provided with pitch threads only;

FIG. 11 is a schematic structural view of a lifting column provided with equidistant threads;

in the drawings, the components represented by the respective reference numerals are listed below:

1-lifting column, 2-limiting column, 3-lifting mechanism, 4-ground, 5-motor, 101-variable pitch thread, 102-equidistant thread, 301-lifting seat, 302-thread latch, 303-elastic piece, 304-mounting groove, 305-lifting platform, 3031-circular cavity, 3032-sliding groove, 3033-T column, 3034-through hole, 3035-sliding column and 3036-spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

Referring to fig. 1-11, the present invention is a lifting device for building, which comprises a lifting column 1, a limiting column 2 and a lifting mechanism 3;

the peripheral side surface of the lifting column 1 is provided with a variable pitch thread 101; the pitch-variable thread 101 is a thread with gradually increasing pitch or gradually decreasing pitch; the lifting mechanism 3 comprises a lifting seat 301, a thread latch 302 and an elastic piece 303; an elastic piece 303 is fixed on the lifting seat 301; wherein, the clamping end of the thread clamping tooth 302 is matched with the peripheral side surface of the variable pitch thread 101; the thread latch 302 is used for thread matching on the peripheral side surface of the pitch-variable thread 101, and the shape of the latch end of the thread latch 302 is matched with the shape of the cross section of the adjacent minimum thread pitch in the pitch-variable thread 101; the elastic member 303 is used for limiting the screw latch 302 up and down and elastically sliding, that is, the screw latch 302 mounted on the elastic member 303 can slide up and down in the vertical direction, and the maximum height difference of the up-and-down sliding is a fixed value; the limiting column 2 penetrates through the lifting seat 301, and the lifting seat 301 is connected with the peripheral side surface of the limiting column 2 in a sliding manner; the lifting column 1 and the limiting column 2 are fixedly arranged on the ground; the limiting column 2 is used for limiting the lifting mechanism 3 to only slide on the lifting column 1; the thread latch 302 of the lifting mechanism 3 is used for being matched on the periphery side of the pitch-variable thread 101; the elastic member 303 is used for: when the pitch of the pitch-variable thread 101 changes, the distance between every two adjacent thread latches 302 is adjusted accordingly through the action of the elastic member 303; the lifting column 1 and the output shaft of the motor 5 are fixedly installed through a coupler; the output shaft of motor 5 provides the rotatory power of lifting column 1, and lifting column 1 is in rotatory while, and spacing post 2 restriction elevating system 3 follows the rotation to provide ascending lift to elevating system 3 through the screw thread.

Preferably, the lifting column 1 further comprises equidistant threads 102; the equidistant thread 102 is connected with the starting end or the tail end of the variable pitch thread 101; or equidistant threads 102 are provided at the middle end of pitch threads 101; the equidistant threads 102 of the lifting column 1 can enable goods to move at a constant speed, and the equidistant threads 102 are used for setting the uniform speed at the initial section, the middle section or the tail section according to lifting requirements.

Preferably, the lifting seat 301 is a circular tube structure; the elastic member 303 is a cylindrical structure; a circular cavity 3031 is formed inside the elastic element 303; the peripheral side surface of the elastic piece 303 is provided with a sliding chute 3032; a T-shaped column 3033 is in sliding fit in the sliding chute 3032; the bottom of the T-shaped column 3033 is provided with a through hole 3034; a sliding column 3035 is matched on the inner surface of the through hole 3034; two ends of the sliding column 3035 are fixed in the circular cavity 3031, and two side faces of the bottom of the T-shaped column 3033 are provided with springs 3036; the inner side surface of the spring 3036 is matched with the peripheral side surface of the sliding column 3035; the top end of the T-shaped column 3033 is fixed with a thread latch 302; the inner wall of the lifting seat 301 is provided with a mounting groove 304 matched with the elastic piece 303; the inner surface of the mounting groove 304 is fixedly mounted with the elastic member 303.

Preferably, the lifting mechanism 3 is fixed with a lifting table 305 on the peripheral side; the lifting platform 305 is used for placing building materials and passengers.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to 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 do not necessarily 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.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A lifting device for building which characterized in that: comprises a lifting column (1), a limiting column (2) and a lifting mechanism (3);

the peripheral side surface of the lifting column (1) is provided with a variable pitch thread (101); the pitch-variable thread (101) is a thread with gradually increased pitch or gradually decreased pitch;

the lifting mechanism (3) comprises a lifting seat (301), a thread latch (302) and an elastic piece (303); an elastic piece (303) is fixed on the lifting seat (301);

the clamping end of the thread clamping tooth (302) is matched with the peripheral side surface of the variable pitch thread (101); the thread latch (302) is used for thread matching on the peripheral side surface of the pitch-variable thread (101), and the shape of the clamping end of the thread latch (302) is matched with the shape of the cross section of the adjacent minimum thread pitch in the pitch-variable thread (101);

the elastic piece (303) is used for limiting the thread latch (302) up and down and elastically sliding, namely the thread latch (302) arranged on the elastic piece (303) can vertically slide up and down, and the maximum height difference of the up-and-down sliding is a fixed value;

the limiting column (2) penetrates through the lifting seat (301), and the lifting seat (301) is connected with the peripheral side face of the limiting column (2) in a sliding mode;

the lifting column (1) and the limiting column (2) are fixedly arranged on the ground; the thread latch (302) of the lifting mechanism (3) is used for being matched with the periphery of the variable pitch thread (101); the lifting column (1) and an output shaft of the motor (5) are fixedly installed through a coupler.

2. A lifting device for buildings as claimed in claim 1, characterized in that the lifting column (1) further comprises equidistant threads (102); the equidistant thread (102) is connected with the starting end or the tail end of the variable pitch thread (101); or the equidistant thread (102) is arranged at the middle end of the variable pitch thread (101).

3. A lifting device for buildings as claimed in claim 1 or 2, characterized in that the lifting base (301) is of a circular tube type structure;

the elastic piece (303) is of a cylindrical structure; a circular cavity (3031) is formed in the elastic piece (303); the peripheral side surface of the elastic piece (303) is provided with a sliding chute (3032); a T-shaped column (3033) is matched in the sliding chute (3032) in a sliding way; a through hole (3034) is formed in the bottom of the T-shaped column (3033); a sliding column (3035) is matched with the inner surface of the through hole (3034); two ends of the sliding column (3035) are fixed in the circular cavity (3031), and two side faces of the bottom of the T-shaped column (3033) are respectively provided with a spring (3036); the inner side surface of the spring (3036) is matched with the peripheral side surface of the sliding column (3035); the top end of the T-shaped column (3033) is fixed with a thread latch (302);

the inner wall of the lifting seat (301) is provided with a mounting groove (304) matched with the elastic piece (303); the inner surface of the mounting groove (304) is fixedly mounted with the elastic piece (303).

4. The elevating device for building as claimed in claim 1, wherein the elevating mechanism (3) is fixed with an elevating platform (305) on the peripheral side; the lifting platform (305) is used for placing building materials and passengers.