CN214880033U

CN214880033U - Four-column type spiral lifting platform

Info

Publication number: CN214880033U
Application number: CN202121624773.9U
Authority: CN
Inventors: 贾更云; 莫维星; 付松涛
Original assignee: Henan Huanghe Explosion Proof Crane Co Ltd
Current assignee: Henan Huanghe Explosion Proof Crane Co Ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2021-11-26
Anticipated expiration: 2031-07-16

Abstract

The utility model relates to a four-column type spiral lifting platform, which comprises a base and a supporting plate, wherein the base is a box body structure with a hollow interior, guide posts which are vertically and upwards arranged are fixed at four corners of the top of the base, the supporting plate is connected on the guide posts in a sliding way with a liftable mode, and a lead screw lifting mechanism for controlling the lifting of the supporting plate is arranged between the supporting plate and the base; lead screw elevating system is including installing the lead screw that makes progress four vertical settings in base four corners departments, and the bottom of lead screw extends to the base inside and rotates with the base through the bearing to be connected, and the four corners department of backup pad all sets up with lead screw matched with screw hole, the top of lead screw run through the backup pad and with backup pad threaded connection, the internally mounted of base has the actuating mechanism who is used for driving four lead screws and realizes synchronous motion. Four lead screws of actuating mechanism drive realize synchronous revolution to drive the backup pad along guide post up-and-down motion, realize the lift of backup pad, easy to assemble, bear heavily, the operation is stable, factor of safety is high.

Description

Four-column type spiral lifting platform

Technical Field

The utility model belongs to the technical field of play to rise machinery, especially relate to a four-column type spiral lift platform.

Background

The lifting platform is special equipment for high-altitude operation with wide application, is popularized to all corners of social life along with the development of scientific technology of modern society, is more and more widely applied, and can not be separated from the lifting platform in building, civil engineering or daily life of people. However, most of the existing lifting platforms in the industry realize the lifting of the lifting platform by driving the hinged rod to move through the hydraulic cylinder. The design mode is complex in installation and large in occupied area of equipment, and once a hydraulic system breaks down, the lifting rod in the oil cylinder rapidly falls down to lead the lifting platform to rapidly fall down, so that personal safety of workers is injured, and great potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a four column type spiral lift platform for there is the technical problem of potential safety hazard, inconvenient installation in the lift platform who solves among the prior art.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the four-column type spiral lifting platform comprises a base and a supporting plate arranged above the base, wherein the base is of a box body structure with a hollow interior, guide columns which are vertically and upwards arranged are fixedly connected to four corners of the top of the base, the supporting plate is connected to the guide columns in a lifting and sliding manner, and a lead screw lifting mechanism for controlling the lifting of the supporting plate is arranged between the supporting plate and the base; the lead screw lifting mechanism comprises four vertical lead screws which are arranged upwards and are arranged at four corners of the base, the bottom ends of the lead screws extend to the inside of the base and are rotatably connected with the base through bearings, threaded holes matched with the lead screws are formed in the four corners of the supporting plate, the top ends of the lead screws penetrate through the supporting plate and are in threaded connection with the supporting plate, and a driving mechanism used for driving the four lead screws to achieve synchronous motion is arranged inside the base.

Preferably, actuating mechanism is including fixing the driving motor that two symmetries of both sides set up around the base is inside, both sides rotate through the bearing around the base is connected with the transmission shaft of two vertical settings, the equal level setting of output shaft of two driving motor and fixed cover are equipped with first bevel gear, from the top down all fixes the first action wheel that the cover was equipped with the interval setting in proper order on two transmission shafts, the second action wheel, second bevel gear meshes with first bevel gear mutually, the lower part that is located two left screws all fixes the cover and is equipped with first from the driving wheel, first action wheel and first are connected through first belt drive from between the driving wheel, the lower part that is located two screws on right all fixes the cover and is equipped with the second from the driving wheel, second action wheel and second are connected through second belt drive from between the driving wheel.

Preferably, the guiding hole that supplies the guide post to pass through is all seted up to the four corners department of backup pad, and the guide hole sets up with the screw hole interval, guide post and guide hole sliding connection, and the inner wall of guide hole and the outer wall of guide post are the rough surface.

Preferably, the below level of backup pad is provided with the buffer board, and the material of buffer board is elastic material, the buffer spring that a plurality of even intervals of fixedly connected with set up between buffer board and the backup pad.

Preferably, the guide post top is fixed with the limiting plate that is used for preventing the backup pad from landing from the guide post top, and the top of limiting plate is less than the top of lead screw.

Preferably, the four corners of the bottom of the base are provided with universal wheels with locking mechanisms.

The utility model has the advantages that: the lifting device is simple in structure, convenient to install and use and low in manufacturing cost, the supporting plate is connected to the guide posts in a lifting and sliding mode through the four lead screws and the four guide posts, the driving mechanism drives the four lead screws to synchronously rotate, and the lead screws are connected with the supporting plate in a threaded mode and rotate to drive the supporting plate to move up and down, so that the height of the supporting plate is adjusted, lifting is achieved without a hydraulic cylinder, equipment is convenient to install, the occupied area is small, and the equipment is large in bearing weight, stable in operation, high in safety factor and good in safety; and through setting up guide post and guiding hole, even appear four lead screws and do not have the problem of synchronous motion, because the existence of guide post, in case the backup pad produces certain inclination, will block on the guide post, can not take place to fall, further promote the security performance, the satisfying user demand that can be better.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of fig. 1.

Reference numerals: 1-base, 2-backup pad, 3-guide post, 4-limiting plate, 5-lead screw, 6-screw hole, 7-driving motor, 8-transmission shaft, 9-first bevel gear, 10-first action wheel, 11-second action wheel, 12-second bevel gear, 13-first driven wheel, 14-first belt, 15-second driven wheel, 16-second belt, 17-guiding hole, 18-buffer plate, 19-buffer spring, 20-universal wheel.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

The direction in which the first driven wheel 13 is located is the left, and the direction in which the second driven wheel 15 is located is the right.

As shown in fig. 1 and 2, the utility model discloses a base 1 and backup pad 2 of setting in base 1 top, base 1 is the box structure that inside cavity set up, the vertical guide post 3 that upwards sets up of the equal fixedly connected with in four corners department at base 1 top, sliding connection is on guide post 3 in backup pad 2 liftable ground, 3 tops of guide post are fixed with limiting plate 4 that is used for preventing backup pad 2 from 3 tops landing of guide post, the top of limiting plate 4 is less than lead screw 5's top, guarantee that backup pad 2 can not come off from 5 tops of lead screw, install the lead screw elevating system who is used for controlling backup pad 2 lift between backup pad 2 and the base 1. Screw elevating system is including installing four vertical lead screw 5 that upwards set up in base 1 four corners department, lead screw 5 sets up with 3 intervals of guide post, the bottom of lead screw 5 runs through base 1's top and extends to inside the base 1, the lower part of lead screw 5 is passed through the bearing and is connected with base 1's top rotation, the bottom of lead screw 5 is passed through the bearing and is connected with base 1 inside bottom rotation, 2 four corners departments of backup pad have all seted up with lead screw 5 matched with screw hole 6, the top of lead screw 5 runs through backup pad 2 and with 2 threaded connection of backup pad, base 1's internally mounted has the actuating mechanism who is used for driving four lead screws 5 and realizes synchronous motion.

Preferably, the driving mechanism comprises two driving motors 7 which are symmetrically arranged and fixed at the front side and the rear side inside the base 1, the driving motors 7 are forward and reverse rotating motors, and the base 1 is further provided with a controller (not shown in the figure) which controls the two driving motors 7 to realize synchronous operation. The front side and the rear side inside the base 1 are rotatably connected with two vertically arranged transmission shafts 8 through bearings, the upper end and the lower end of each transmission shaft 8 are respectively rotatably connected with the upper end and the lower end inside the base 1 through bearings, the output shafts of the two driving motors 7 are horizontally arranged and fixedly sleeved with first bevel gears 9, the two transmission shafts 8 are sequentially and fixedly sleeved with first driving wheels 10 and second driving wheels 11 which are arranged at intervals from top to bottom, second bevel gear 12, second bevel gear 12 and first bevel gear 9 mesh mutually, and the lower part that is located two lead screws 5 on left all fixed cover is equipped with first from driving wheel 13, and first action wheel 10 is connected with first transmission from driving wheel 13 through first belt 14, and the lower part that is located two lead screws 5 on right all fixed cover is equipped with the second from driving wheel 15, and second action wheel 11 is connected with the second from driving wheel 15 through second belt 16 transmission. The controller controls the two driving motors 7 to realize synchronous operation, the output shafts of the driving motors 7 rotate to sequentially drive the first bevel gears 9, the second bevel gears 12 and the transmission shafts 8 to rotate, the first driving wheel 10 and the second driving wheel 11 are fixedly sleeved on the transmission shafts 8, the transmission shafts 8 rotate to drive the first driving wheel 10 and the second driving wheel 11 to rotate, the first driving wheel 10 and the second driving wheel 11 rotate to drive the first driven wheel 13 and the second driven wheel 15 to rotate, and finally the four lead screws 5 are driven to realize synchronous motion.

Preferably, the guiding hole 17 that supplies guide post 3 to pass through is all seted up to the four corners department of backup pad 2, and guiding hole 17 and screw hole 6 interval set up, and guide post 3 and guiding hole 17 sliding connection, the inner wall of guiding hole 17 and the outer wall of guide post 3 are the rough surface. Under the prerequisite of guaranteeing that guide post 3 can freely slide, increase the frictional force between guide post 3 and the guiding hole 17 as far as possible, when the asynchronous problem appears in four lead screws 5, lead to backup pad 2 to produce certain inclination, at this moment, backup pad 2 will block on guide post 3, can not take place to fall, and because the frictional force has between guide post 3 and the guiding hole 17, can further prevent backup pad 2 and fall, further promote the security performance.

Preferably, a buffer plate 18 is horizontally disposed below the support plate 2, the buffer plate 18 is made of an elastic material, such as elastic rubber or elastic silica gel, and a plurality of buffer springs 19 are fixedly connected between the buffer plate 18 and the support plate 2 and are uniformly spaced. Through setting up buffer board 18 and buffer spring 19, when backup pad 2 downstream to base 1 top, buffer board 18 contacts with base 1, plays the effect of shock attenuation buffering to base 1, avoids base 1 to receive too big impact force, extension base 1's life.

Preferably, universal wheels 20 with locking mechanisms are mounted at four corners of the bottom of the base 1. The device is conveniently moved according to the use requirement, and the labor is saved. The universal wheel 20 with the locking mechanism is prior art, and the detailed structure thereof will not be described herein.

The utility model discloses a theory of operation: when the supporting plate 2 needs to be lifted, the two driving motors 7 are controlled by the controller to realize forward synchronous rotation, the output shafts of the driving motors 7 rotate to sequentially drive the first bevel gear 9, the second bevel gear 12 and the transmission shaft 8 to rotate, the first driving wheel 10 and the second driving wheel 11 are fixedly sleeved on the transmission shaft 8, the transmission shaft 8 rotates to drive the first driving wheel 10 and the second driving wheel 11 to rotate, the first driving wheel 10 and the second driving wheel 11 rotate to drive the first driven wheel 13 and the second driven wheel 15 to rotate, and finally the four lead screws 5 are driven to realize synchronous rotation, and the supporting plate 2 is driven by the rotation of the lead screws 5 to move upwards along the guide posts 3 due to the threaded connection of the supporting plate 2 and the lead screws 5, so that the height of the supporting plate 2 is lifted; when the height of the supporting plate 2 needs to be reduced, the controller controls the two driving motors 7 to realize reverse synchronous rotation, the driving mechanism drives the four screw rods 5 to realize synchronous rotation, and the screw rods 5 rotate to drive the supporting plate 2 to move downwards along the guide posts 3. The utility model discloses need not to adopt the pneumatic cylinder to realize going up and down, easy to assemble, the bearing is big, and the operation is stable, and the security is good, even four lead screws 5 do not have the problem of synchronous motion appear, because the existence of guide post 3, in case backup pad 2 produces certain inclination, will block on guide post 3, can not take place to fall, further promotes the security performance.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims

1. The utility model provides a four column type spiral lift platform which characterized in that: the lifting device comprises a base and a supporting plate arranged above the base, wherein the base is of a box body structure with a hollow interior, four corners of the top of the base are fixedly connected with guide posts which are vertically and upwardly arranged, the supporting plate is connected to the guide posts in a lifting and sliding manner, and a lead screw lifting mechanism for controlling the lifting of the supporting plate is arranged between the supporting plate and the base; the lead screw lifting mechanism comprises four vertical lead screws which are arranged upwards and are arranged at four corners of the base, the bottom ends of the lead screws extend to the inside of the base and are rotatably connected with the base through bearings, threaded holes matched with the lead screws are formed in the four corners of the supporting plate, the top ends of the lead screws penetrate through the supporting plate and are in threaded connection with the supporting plate, and a driving mechanism used for driving the four lead screws to achieve synchronous motion is arranged inside the base.

2. The four-column spiral elevating platform of claim 1, wherein: actuating mechanism is including fixing the driving motor that two symmetries in both sides set up around the base is inside, both sides rotate through the bearing around the base is connected with the transmission shaft of two vertical settings, the equal level setting of output shaft of two driving motor and fixed cover are equipped with first bevel gear, from the top down all fixes the first action wheel that the cover was equipped with the interval and set up in proper order on two transmission shafts, the second action wheel, second bevel gear meshes with first bevel gear mutually, the lower part that is located two left screws all fixes the cover and is equipped with first from the driving wheel, first action wheel and first are connected through first belt drive from between the driving wheel, the lower part that is located two screws on right side all fixes the cover and is equipped with the second from the driving wheel, second action wheel and second are connected through second belt drive from between the driving wheel.

3. The four-column spiral elevating platform of claim 2, wherein: the guiding hole that supplies the guide post to pass through is all seted up to the four corners department of backup pad, and the guide hole sets up with the screw hole interval, guide post and guide hole sliding connection, and the inner wall of guide hole is the mat face with the outer wall of guide post.

4. The four-column spiral elevating platform of claim 2, wherein: the below level of backup pad is provided with the buffer board, and the material of buffer board is elastic material, the buffer spring that a plurality of even intervals of fixedly connected with set up between buffer board and the backup pad.

5. The four-column spiral elevating platform of claim 2, wherein: the guide post top is fixed with the limiting plate that is used for preventing the backup pad from following the landing of guide post top, and the top of limiting plate is less than the top of lead screw.

6. The four-column spiral elevating platform according to any one of claims 1 to 5, wherein: the four corners of the bottom of the base are provided with universal wheels with locking mechanisms.