CN214283857U

CN214283857U - Lifting column structure of office table

Info

Publication number: CN214283857U
Application number: CN202022921577.XU
Authority: CN
Inventors: 林延峻; 林东亿
Original assignee: Jiangyin Kao Yi Mechanization Industry Co ltd
Current assignee: Jiangyin Kao Yi Mechanization Industry Co ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-09-28
Anticipated expiration: 2030-12-08

Abstract

The utility model relates to an office table lifting column structure, which comprises an inner square tube, an outer square tube and a liquid-gas separation air pressure rod, wherein the inner square tube and the outer square tube are coaxially arranged inside and outside, a certain gap is left between the two tubes, and the liquid-gas separation air pressure rod is coaxially arranged in the inner square tube; the utility model discloses a table top, including interior side pipe, mounting panel, liquid-gas separation pneumatic rod, bottom and outer square tube bottom, the bottom of interior side pipe is the free end, and the mounting panel fixed with the desktop is installed at the top, the top expansion end of liquid-gas separation pneumatic rod is connected fixedly with the mounting panel, and the bottom is fixed with outer square tube bottom, outer square tube bottom is placed on ground or is fixed with the desk bottom plate set up antifriction bearing in the clearance between interior side pipe and the outer square tube. The utility model discloses set up the antifriction bearing that plastics were made between the clearance of inside and outside side pipe, change sliding friction into rolling friction, use can the silence when the contact slip, go up and down more smoothly simultaneously, elevating gear's simple structure makes and the assembly cost is low in addition.

Description

Lifting column structure of office table

Technical Field

The utility model belongs to the technical field of office supplies, concretely relates to about can constantly keep the vertical stability lift, can not the desk lift post structure of arbitrary slope to can accord with human functional principle.

Background

The table generally used at present usually has a certain height, and the height of the table cannot be adjusted additionally. Because the height of use is restricted, the practicability of the utility model is greatly reduced, and simultaneously the utility model is not in accordance with human engineering. For this reason, the applicant has developed a lifting device that allows the height position of the table to be arbitrarily adjusted. As in the patent publication "elevator" patent No. M461623, the following is specifically disclosed: comprises an upper seat, a pneumatic rod arranged below the upper seat, two support rods extending downwards from the upper seat, and a lower seat for sleeving the pneumatic rod and the two support rods. Each supporting rod is provided with an outer edge surface, at least one lantern ring sleeved on the outer edge surface, and a plurality of balls movably arranged on the lantern ring and abutted against the outer edge surface; the lower seat is provided with an upright platform, a through hole which penetrates through the upright platform and is fixedly connected with the pneumatic rod penetrating group, and two sleeves which are arranged in the upright platform and are penetrated by the two support rods; the sleeve has an inner edge surface which is attached to the balls; the two support rods are used for assisting the air pressure rod to support an object, so that the object keeps a stable displacement state in the lifting process, and the two support rods smoothly slide up and down in the two sleeves without obstruction by virtue of the balls, thereby having good stability.

However, the lifting device of the prior art has to be sleeved with a plurality of lantern rings at intervals on the outer edge surface of each supporting rod, and a plurality of balls are movably arranged on the lantern rings, so the assembly operation is complicated and time-consuming, and the balls are attached to the outer edge surface of the supporting rod and the inner edge surface of the sleeve in a point contact manner, so that the point contact pressure is large, the size is large, and particularly, the oval table top is matched with the cylindrical movable tube, so that the lifting device is not matched and is not beautiful.

Therefore, the applicant and other manufacturers design a lifting device with a polygonal structure, and a connecting rod is transversely fixed between two fixed columns, so that the two guide columns can be relatively constant, vertical and stable and cannot be inclined randomly; meanwhile, the two air pressure rods are respectively arranged in the two guide columns and are controlled to lift simultaneously by the lifting control switch, so that the table top is ensured to lift stably and not to incline, and the table top is not easy to shake when receiving pressure at any position; in addition, sliding friction between the two fixed columns and the two guide columns is changed into rolling friction through the steel ball sleeve, so that the two fixed columns and the two guide columns can be silent when in contact sliding, and the two guide columns can ascend and descend more smoothly. Then these elevating gear's manufacturing cost is very high, and the equipment is also complicated and takes time, and some manufacturers are in order to reduce manufacturing cost, only realize going up and down through the mode that sets up the plastic gasket between two guide posts, adopt elevating gear of this mode, because realize through the sliding friction of plastic gasket, although reduced manufacturing cost and improved the packaging efficiency, long-time use can lead to going up and down because of the wearing and tearing of plastic gasket hinder even unable lift.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an office table lift post structure is provided to above-mentioned prior art, when reduction in production cost and simplified the equipment mode, keeps going up and down smoothly.

The utility model provides a technical scheme that above-mentioned problem adopted does: a lifting column structure of an office table comprises an inner square tube, an outer square tube and a liquid-gas separation air pressure rod, wherein the inner square tube and the outer square tube are coaxially arranged inside and outside the tubes, a certain gap is reserved between the two tubes, and the liquid-gas separation air pressure rod is coaxially arranged in the inner square tube; the utility model discloses a table top, including interior side pipe, mounting panel, liquid-gas separation pneumatic rod, bottom and outer square tube bottom, the bottom of interior side pipe is the free end, and the mounting panel fixed with the desktop is installed at the top, the top expansion end of liquid-gas separation pneumatic rod is connected fixedly with the mounting panel, and the bottom is fixed with outer square tube bottom, outer square tube bottom is placed on ground or is fixed with the desk bottom plate set up antifriction bearing in the clearance between interior side pipe and the outer square tube.

Preferably, the rolling bearing is made of a plastic material.

Preferably, rolling bearings are arranged between four surfaces of the inner square pipe and the outer square pipe.

Preferably, an upper rolling bearing and a lower rolling bearing are arranged between each surface.

Preferably, the rolling bearing is arranged at a position below the square pipe.

Preferably, the rolling bearing is installed on the inner square pipe and moves up and down along with the inner square pipe.

Preferably, the four outer wall surfaces of the inner square pipe are provided with bearing seats, each bearing seat is a square frame, the rolling bearings are installed in the square bearing seats, and the rolling surfaces face outwards and are attached to the inner wall surfaces of the outer square pipes.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses set up the antifriction bearing that plastics were made between the clearance of inside and outside side pipe, change sliding friction into rolling friction, use can the silence when the contact slip, go up and down more smoothly simultaneously, elevating gear's simple structure makes and the assembly cost is low in addition.

Drawings

Fig. 1 is an axial sectional view of a lifting column structure of an office table in an embodiment of the present invention.

Wherein:

inner square tube 1

Outer square tube 2

Liquid-gas separation air pressure rod 3

Mounting plate 4

Rolling bearing 5

A bearing seat 6.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Please refer to fig. 1, an embodiment of the present invention relates to a lifting column structure of an office table, which comprises an inner square tube 1, an outer square tube 2 and a liquid-gas separation pneumatic rod 3, wherein the inner square tube 1 and the outer square tube 2 are coaxially arranged inside and outside, and a certain gap is left between the two tubes, so that the inner square tube 1 freely goes up and down, and the liquid-gas separation pneumatic rod 3 is coaxially arranged inside the inner square tube 1.

Interior side pipe 1's bottom is the free end, and a mounting panel 4 is installed at the top, mounting panel 4 is fixed with the desktop through the bolt, the top expansion end of liquid-gas separation pneumatic rod 3 is connected fixedly with mounting panel 4, and the bottom is fixed through nut locking with 2 bottoms of foreign side pipe, 2 bottoms of foreign side pipe are arranged in ground or are fixed with the desk bottom plate.

The inner square pipe 1 is driven to freely lift up and down along the inside of the outer square pipe 2 under the action of the liquid-gas separation air pressure rod 3, and then the table top is driven to lift by the mounting plate 4 at the top of the inner square pipe 1.

Because leave certain clearance between interior square pipe 1 and the outer square tube 2, this clearance exists in four faces of square pipe, can because this clearance produces rock about or around this clearance in the in-service use process, in the past through set up the plastic pad on the outer wall face of interior square pipe 1 and fill this clearance, nevertheless discovery in-service use goes up and down not very smoothly, even the long time can appear blocking, the unable problem of going up and down.

In order to solve the above problems, a rolling bearing 5 is provided in a gap between the inner tube 1 and the outer tube 2, and the rolling bearing 5 is made of a plastic material for cost reduction. Because all there is the clearance between four faces of side's pipe, for preventing to produce about or the front and back rocking, all be provided with antifriction bearing 5 between four faces of interior side's pipe 1 and foreign side pipe 2, two antifriction bearing 5 about all being provided with between every face, according to actual detection discovery, all set up antifriction bearing 5 when square below position, the lift process is more steady.

Specifically, antifriction bearing 5 installs on interior square pipe 1, follows interior square pipe 1 oscilaltion motion, through set up bearing frame 6 on four outer wall faces including interior square pipe 1, bearing frame 6 is square framework, and antifriction bearing 5 installs in square bearing frame 6, and the rolling surface is laminated with the internal face of outer square pipe 2 outwards to realize the rolling friction between interior square pipe 1 and outer square pipe 2.

To synthesize the above description of the embodiments, the operation, use and the effect of the present invention can be fully understood, but the embodiment is only the preferred embodiment of the present invention, and the range of the present invention can not be limited thereby, i.e. the simple equivalent changes and modifications made by the claims of the present invention and the description of the present invention all belong to the scope covered by the present invention.

Claims

1. The utility model provides a desk lifting column structure which characterized in that: the gas-liquid separation device comprises an inner square tube, an outer square tube and a gas-liquid separation pressure bar, wherein the inner square tube and the outer square tube are coaxially arranged inside and outside the tubes, a certain gap is reserved between the two tubes, and the gas-liquid separation pressure bar is coaxially arranged in the inner square tube; the utility model discloses a table top, including interior side pipe, mounting panel, liquid-gas separation pneumatic rod, bottom and outer square tube bottom, the bottom of interior side pipe is the free end, and the mounting panel fixed with the desktop is installed at the top, the top expansion end of liquid-gas separation pneumatic rod is connected fixedly with the mounting panel, and the bottom is fixed with outer square tube bottom, outer square tube bottom is placed on ground or is fixed with the desk bottom plate set up antifriction bearing in the clearance between interior side pipe and the outer square tube.

2. A desk lifting post structure as claimed in claim 1 wherein: the rolling bearing is made of plastic materials.

3. A desk lifting post structure as claimed in claim 1 wherein: rolling bearings are arranged between the four surfaces of the inner square pipe and the outer square pipe.

4. A desk lifting post structure as claimed in claim 3 wherein: an upper rolling bearing and a lower rolling bearing are arranged between each surface.

5. A desk lifting post structure as claimed in claim 3 wherein: the rolling bearing is arranged at the lower position of the square pipe.

6. A desk lifting post structure as claimed in claim 1 wherein: and the rolling bearing is arranged on the inner square pipe and moves up and down along with the inner square pipe.

7. A desk lifting post structure as claimed in claim 6 wherein: the four outer wall surfaces of the inner square pipe are provided with bearing seats, the bearing seats are square frame bodies, the rolling bearings are installed in the square bearing seats, and the rolling surfaces face outwards to be attached to the inner wall surfaces of the outer square pipes.