CN211672902U

CN211672902U - Multi-column synchronous pneumatic lifting system

Info

Publication number: CN211672902U
Application number: CN201922042000.9U
Authority: CN
Inventors: 应端忠
Original assignee: NINGBO YILI SHOCK ABSORBER CO Ltd
Current assignee: Ningbo Yili Industrial Co ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-10-16
Anticipated expiration: 2029-11-21

Abstract

The utility model discloses a multi-column synchronous pneumatic lifting system, which comprises a plurality of groups of lifting components, wherein each lifting component comprises a sleeved lifting column and a guide column, an air spring is arranged in each lifting column, a synchronous belt is arranged outside each lifting column, a cross beam is arranged between the lifting columns, a rotatable connecting shaft is arranged in each cross beam, and synchronous wheels matched with the synchronous belts are respectively arranged at two ends of each connecting shaft; the upper ends of all the lifting columns are lapped with a bracket, and the lower ends of the guide columns are provided with bottom feet; the gas spring is connected with the bracket and the bottom foot; the bracket is internally provided with a gas spring mounting seat and a switch component for controlling the gas spring. The utility model has the advantages that the synchronous lifting of the lifting system is completed, and the air spring is independently restrained in the lifting column; the lifting column can form reliable constraint support for the air spring, the air spring only needs to play a linear pushing role, the reliability of the air spring is high, and the service life of the lifting system is long.

Description

Multi-column synchronous pneumatic lifting system

Technical Field

The utility model belongs to the technical field of the lift table, specifically a synchronous pneumatic lift system of many posts.

Background

Pneumatic lift compares motor lift and has the low noise, stable in structure's advantage, and current pneumatic operating system adopts two gas spring structures to promote two guide posts to realize operating system's plane synchronous lift usually. Chinese patent document CN208160395U discloses "a pneumatic synchronous lifting table" in 2018, 11/30/h, which is provided with a synchronization mechanism, wherein the synchronization mechanism comprises a hexagonal transmission rod, the hexagonal transmission rod is connected with lifting columns at two ends, the lifting columns comprise an outer sleeve and an inner sleeve, a table frame is mounted at the upper end of the inner sleeve, and a footing plate is mounted at the lower end of the outer sleeve; an air spring is installed inside the lifting column, an upper synchronizing wheel is fixed at the upper end of the air spring, an air spring sleeve is fixed on a piston rod of the air spring, a lower synchronizing wheel is installed at the lower end of the air spring sleeve, and a synchronous belt is sleeved between the upper synchronizing wheel and the lower synchronizing wheel; and a pull rod is fixed at the joint of the synchronous belt, and the lower end of the pull rod is fixed on a welding piece at the bottom of the outer sleeve of the lifting column.

The applicant declares that the structure can solve the problem of uneven load of the desktop of the existing pneumatic lifting table, but the gas spring, the synchronizing wheel and the synchronizing belt are very close to each other in position, the three are arranged in the inner sleeve of the lifting column, and the synchronizing wheel is driven to rotate by the matching of the synchronizing belt and the pull rod, so that the synchronizing wheel and the synchronizing belt can rotate in the inner sleeve, and the synchronizing wheel and the synchronizing belt can not be in contact with the inner sleeve.

SUMMERY OF THE UTILITY MODEL

Based on the problem, the utility model provides a synchronous pneumatic operating system of many posts can realize the synchronous lift of operating system, and the good reliability of air spring improves operating system's life.

In order to realize the purpose of the invention, the utility model adopts the following technical scheme: a multi-column synchronous pneumatic lifting system comprises a plurality of groups of lifting assemblies, wherein each lifting assembly comprises a lifting column and a guide column which are sleeved, an air spring is arranged in each lifting column, a synchronous belt is arranged on the outer side of each lifting column, a cross beam is arranged between every two lifting columns, a rotatable connecting shaft is arranged in each cross beam, and synchronous wheels matched with the synchronous belts are arranged at two ends of each connecting shaft respectively; the upper ends of all the lifting columns are lapped with a bracket, and the lower ends of the guide columns are provided with bottom feet; the gas spring is connected with the bracket and the bottom foot; the bracket is internally provided with a gas spring mounting seat and a switch component for controlling the gas spring.

Thereby drive the synchronizing wheel through the hold-in range and control the connecting axle, realize the synchronous motion of all hold-in ranges through the connecting axle, and then accomplish operating system's synchronous lift, the air spring is restraint alone in the lift post, hold-in range and synchronizing wheel setting are between lift post and guide post, the lift post can form reliable restraint to the air spring and support, the air spring only need play sharp impetus, thereby the reliability and the life of air spring have been improved, operating system's life is promoted.

Preferably, a guide plate is arranged between the lifting column and the guide column, a plurality of mounting holes are formed in the guide plate, and rolling balls are arranged in the mounting holes. The guide plate limits the lifting column and the guide column, so that guiding limitation between the lifting column and the guide column is guaranteed, friction is reduced through the rolling balls, and the rolling balls can be nylon balls, so that the friction between the guide plate and the guide column is reduced.

Preferably, the shape of hold-in range is straight rectangular shape, and the hold-in range passes through the fixed block to be fixed at the lateral wall of lift post, is equipped with the tooth rib of cooperation hold-in range on the fixed block. The hold-in range passes through the fixed block to be installed in the guide post outside, stable in structure, and the guide post can play the supporting role to the lift hold-in range to make can stably laminate between hold-in range and the synchronizing wheel, the reliability is high.

Preferably, a straight through cuboid cavity is arranged in the cross beam, and the connecting shaft is located in the cavity of the cross beam. The mounting is convenient, the cross beam can be in limit connection with the two guide columns and used as an auxiliary support for connection of the guide columns, meanwhile, the mounting space of the connecting shaft is automatically formed, the connecting shaft is protected from collision, and the structure compactness of the lifting system is improved.

Preferably, the upper end of the guide post is provided with a fixed guide block, and a fixed guide hole matched with the lifting post is formed in the fixed guide block. The fixed guide block forms double limit with the guide plate through the fixed guide hole, the lifting column is prevented from moving excessively while the lifting column is guaranteed to slide reliably, and the stroke reliability of relative movement of the lifting column and the guide column is improved.

Preferably, the lifting components are provided with two groups which are opposite, the brackets are I-shaped, the brackets comprise vertical rods and cross rods positioned at two ends of the vertical rods, and the two lifting columns are respectively connected at two ends of the vertical rods. The bracket can stably support a table top or a table top, and is convenient for application of the lifting system.

To sum up, the beneficial effects of the utility model are that: the synchronous lifting of the lifting system is completed, and the gas spring is independently constrained in the lifting column; the lifting column can form reliable constraint support for the air spring, the air spring only needs to play a linear pushing role, the reliability of the air spring is high, and the service life of the lifting system is long.

Drawings

Fig. 1 is an exploded schematic view of the present invention.

Fig. 2 is an external view of the present invention.

Fig. 3 is a schematic structural view of the lifting column and the connecting shaft of the present invention.

Wherein: lifting assembly 1, lifting column 11, guide plate 12, rolling ball 13, guide column 14, fixed guide block 15, gas spring 2 switch assembly 21, gas spring mounting seat 22, synchronous belt 3, fixed block 31, connecting shaft 41, connecting shaft 42, synchronous wheel 43, bracket 5, vertical rod 51, open cavity 511, cross rod 52 and foot 6.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

The embodiment shown in fig. 1 is a multi-column synchronous pneumatic lifting system, which comprises two sets of opposite lifting assemblies 1, wherein each lifting assembly 1 comprises a lifting column 11 and a guide column 14 which are sleeved, and the lifting column 11 and the guide column 14 are both of tubular structures with rectangular cross sections. Be equipped with air spring 2 in the lift post 11, one side in the lift post 11 outside is equipped with hold-in range 3, and hold-in range 3's shape is straight rectangular shape, and hold-in range 3 passes through fixed block 31 to be fixed at the lateral wall of lift post 11, is equipped with the tooth rib of cooperation hold-in range 3 on the fixed block 31. A guide plate 12 is arranged between the lifting column 11 and the guide column 14, and the guide plates 12 are respectively arranged on four side surfaces of the lower end of the lifting column 11 through screw fixation. The thickness of the guide plate 12 adopted at one side of the lifting column 11 provided with the synchronous belt 3 is larger than the thickness of the other three guide plates 12. Six 2-3 rectangular array arrangement mounting holes are formed in the guide plate 12, and rolling balls 13 are arranged in the mounting holes. The rolling ball 13 is made of nylon material.

Be equipped with crossbeam 4 between the lift post 11, be equipped with rotatable connecting axle 41 in the crossbeam 4, be equipped with the cuboid cavity that the straight line link up in the crossbeam 4, connecting axle 41 is located the cavity of crossbeam 4. Connecting shaft fixing seats 42 with bearings are arranged at two ends of the cross beam 4, the connecting shaft fixing seats 42 are screwed on the cross beam 4 through screws, and two ends of the connecting shaft 41 penetrate out of the connecting shaft fixing seats 42.

Two ends of the connecting shaft 41 are respectively provided with a synchronous wheel 43 matched with the synchronous belt 3; the synchronizing wheel 43 is flat-keyed to the connecting shaft 41. The upper ends of the two lifting columns 11 are lapped and provided with a bracket 5, the bracket 5 is H-shaped, the bracket 5 comprises a vertical rod 51 and cross rods 52 positioned at two ends of the vertical rod 51, the upper end of the vertical rod is provided with an open cavity 511, and the two lifting columns 11 are respectively connected at two ends of the vertical rod 51. The lower end of the guide column 14 is provided with a footing 6; the gas spring 2 is connected with the bracket 5 and the bottom foot 6; the housing of the gas spring 2 is fixedly connected with the footing 6, and a gas spring mounting seat 22 and a switch assembly 21 for controlling the gas spring 2 are arranged in the bracket 5. Gas spring mount 22 and switch assembly 21 are disposed within an open cavity 511 at the end of vertical rod 51. The piston rod of the gas spring 2 is fixedly connected with the bracket 5 through a gas spring mounting seat 22. The upper end of the guide post 14 is provided with a fixed guide block 15, and a fixed guide hole matched with the lifting post 11 is arranged in the fixed guide block 15. The lifting column 11 can move up and down through the fixed guide hole seat. The end of the piston rod of the gas spring 2 extends from the lifting column 11 and passes under the vertical rod 51.

The upper end of the bracket 5 can be used for placing a table top or a table top. The elevating system can regard as the power supply through a controllable air spring 2 of taking the switch when using, when opening the switch of air spring 2, the piston rod of air spring 2 promotes lift post 11 and bracket 5 and makes the action that rises, and hold-in range 3 is equipped with in the lift post 11 outside, and synchronous in-process that rises drives synchronizing wheel 43 rotatory, and synchronizing wheel 43 passes through the keyway with the synchronizing shaft and is connected the transmission, and the hold-in range 3 wheel that drives the other end is rotatory to realize that both ends rise and the synchronization of descending movement. The lifting system can also adopt two controllable gas springs 2 as power sources, each gas spring 2 is respectively matched with the corresponding lifting assembly 1, the two gas springs 2 synchronously act, the synchronous wheels 43 and the synchronous belts 3 corresponding to the two groups of lifting assemblies 1 are matched to realize synchronous limit, the connecting shaft 41 ensures that the actions of the two synchronous wheels 43 are consistent, so that the action consistency of the two groups of lifting assemblies 1 is ensured, and the stable lifting of the lifting system is ensured.

The gas spring 2 of the present application is solely constrained within the lifting column 11; the lifting column 11 can form reliable constraint support for the gas spring 2, the gas spring 2 only needs to play a linear pushing role, the reliability of the gas spring 2 is high, and the service life of the lifting system is long.

Claims

1. A multi-column synchronous pneumatic lifting system is characterized by comprising a plurality of groups of lifting assemblies, wherein each lifting assembly comprises a lifting column and a guide column which are sleeved, an air spring is arranged in each lifting column, a synchronous belt is arranged on the outer side of each lifting column, a cross beam is arranged between every two lifting columns, a rotatable connecting shaft is arranged in each cross beam, and synchronous wheels matched with the synchronous belts are arranged at two ends of each connecting shaft respectively; the upper ends of all the lifting columns are lapped with a bracket, and the lower ends of the guide columns are provided with bottom feet; the gas spring is connected with the bracket and the bottom foot; the bracket is internally provided with a gas spring mounting seat and a switch component for controlling the gas spring.

2. The multi-column synchronous pneumatic lifting system as claimed in claim 1, wherein a guide plate is provided between the lifting column and the guide column, the guide plate is provided with a plurality of mounting holes, and the mounting holes are provided with rolling balls.

3. The multi-column synchronous pneumatic lifting system of claim 1, wherein the shape of the synchronous belt is a straight strip, the synchronous belt is fixed on the outer side wall of the lifting column through a fixed block, and the fixed block is provided with a tooth rib matched with the synchronous belt.

4. The multi-column synchronous pneumatic lifting system as claimed in claim 1, wherein a rectangular parallelepiped cavity is formed in the cross beam in a straight line, and the connecting shaft is located in the cavity of the cross beam.

5. The multi-column synchronous pneumatic lifting system as claimed in claim 1 or 2, wherein the upper end of the guide column is provided with a fixed guide block, and a fixed guide hole matched with the lifting column is formed in the fixed guide block.

6. A multi-column synchronous pneumatic lifting system as claimed in claim 1, 2 or 3, wherein said lifting units are provided in two sets, the carriage is "i" shaped, the carriage comprises a vertical rod and a cross rod at both ends of the vertical rod, and the two lifting columns are respectively connected to both ends of the vertical rod.