CN202457068U

CN202457068U - Desk and chair lifting device

Info

Publication number: CN202457068U
Application number: CN2012200971308U
Authority: CN
Inventors: 黄良孟
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-06
Filing date: 2012-03-06
Publication date: 2012-10-03
Anticipated expiration: 2022-03-06

Abstract

The utility model discloses a desk and chair lifting device comprising a lifting frame pipe body, a bottom frame pipe body and a pipe sleeve. The pipe sleeve is located between the lifting frame pipe body and the bottom frame pipe body; the lifting frame pipe body comprises an upper pipe rod; the bottom frame pipe body comprises a lower pipe foot; and the upper pipe rod is placed into a hollow position of the lower pipe foot and is movably matched with the lower pipe foot. The desk and chair lifting device is characterized in that the upper pipe rod is sequentially provided with more than one positioning hole; a convex pipe opening communicated with the lower pipe foot is arranged at the upper end of the lower pipe foot; the convex pipe opening is provided with a positioning control device; and the positioning control device utilizes stretching or compression of a spring to control. The designed desk and chair lifting device adopts the positioning control device and utilizes the retraction principle of the spring, so that the needed desk and chair height can be adjusted by only pulling a steering handle and the height is very convenient to adjust; the pipe sleeve arranged between the upper pipe rod and the lower pipe foot can be used for better solving the problems that the desk and the chair are not stable and a product is damaged by relative friction in a process of adjusting the height by the pipe body; and a corresponding digital mark is arranged so that workers can perform installation conveniently.

Description

The tables and chairs lowering or hoisting gear

Technical field

The utility model relates to a kind of tables and chairs device, particularly tables and chairs lowering or hoisting gear.

Background technology

The tables and chairs that use at present, it is perfect that Along with people's is not stopped, and tables and chairs can be realized now; Satisfied the demand of consumers in general or public arena; Up-down for tables and chairs mainly is that the 2-section pipe body can carry out the fixing of differing heights at present, mainly is that the fixing groove that perhaps is provided with cooperation between two bodys of threaded engagement carries out slidable adjustment for fixed form, for the adjusting of mating groove; Mainly be along with the time, be prone to the sliding motionless imagination; Fix for the former threaded engagement, need dismantle nut in the time of adjusting, nut is installed again; Use inconvenience, simultaneously this being threaded is prone to the situation such as changeing motionless nut of getting rusty, and owing to be the slip of two bodys; The body that when sliding, is prone to slip rubs off lacquer, perhaps is prone to wearing and tearing and makes and the slit occurs between two bodys that this shaking of tables and chairs just occurred along with the time; Promptly unstable, be great inconvenience for the consumer.

The utility model content

The purpose of the utility model is that a kind of tables and chairs lowering or hoisting gear convenient, reliable and stable that goes up and down is provided for the deficiency that solves above-mentioned prior art.

To achieve these goals, the tables and chairs lowering or hoisting gear that the utility model designed comprises crane body, underframe body and pipe box; Pipe box is between crane body and underframe body; The crane body comprises the pipe bar, and the underframe body comprises down pin, on manage bar and place down in the hollow position of pin and both movable cooperations; It is characterized in that being arranged in order on the pipe bar and be provided with more than one positioning hole; The upper end of following pin is provided with the protrusion mouth of pipe that communicates with following pin, and the protrusion mouth of pipe is provided with position control device, and described position control device is the extension or the compression control of spring.

As preferably; Described position control device comprises steering tiller, positioning sleeve, spring and location axostylus axostyle; Positioning sleeve is fixed on through being threaded in the protrusion mouth of pipe, steering tiller and positioning sleeve socket, and the location axostylus axostyle comprises top axostylus axostyle and lower part axostylus axostyle; The lower part shaft diameter is greater than the top shaft diameter; The location axostylus axostyle passes positioning sleeve and the steering tiller screw thread is fixed, and spring is positioned at positioning sleeve and spring housing is connected on the axostylus axostyle of top, and this preferred version has improved the convenience of the control of going up and down.

For the stability of the up-down that improves tables and chairs, described pipe box is provided with integrated protruding round platform, and pipe box places down and cooperates socket in the pin top, and protruding round platform is stuck in down in the mating holes that pin is provided with.

For the required height of better recognition; The described pin of going up is provided with figure notation; The corresponding figure notation of locating hole, the figure notation that is positioned at first locating hole correspondence of pipe bar lower end is 1, the rest may be inferred in addition locating hole mark corresponding digital mark from lower to upper.

The tables and chairs lowering or hoisting gear that the utility model obtains; Adopt position control device, utilize the flexible principle of spring, well reset in the time of can letting steering tiller rotate; Only need the pulling steering tiller just can regulate the height of required tables and chairs; Regulate highly very convenient, on manage relative friction generates when pipe box being housed between bar and the following pin well having solved tables and chairs unstability and body and regulate height to the damage of product, be provided with the installation that corresponding figure notation has made things convenient for the staff.

Description of drawings

Fig. 1 is the overall structure sketch map of the utility model;

Fig. 2 is the sectional structure chart of position control device;

Fig. 3 is Fig. 2 spring compressive state sketch map.

Among the figure: crane body 11, underframe body 12, pipe box 13, on manage bar 14, pin one 5, position control device 16, locating hole 17, the protrusion mouth of pipe 18, steering tiller 21, positioning sleeve 22, spring 23, location axostylus axostyle 24, spacing supporting surface 31, figure notation 101, protruding round platform 102, mating holes 103 down.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

Embodiment:

Like Fig. 1, Fig. 2, shown in Figure 3; The tables and chairs lowering or hoisting gear that present embodiment provides comprises crane body 11, underframe body 12 and pipe box 13, and pipe box 13 is between crane body 11 and underframe body 12; Crane body 11 comprises pipe bar 14; Underframe body 12 comprises down pin one 5, on manage bar 14 and place down in the hollow position of pin one 5 and both movable cooperations, described pipe box 13 is provided with integrated protruding round platform 102; Pipe box 13 places down in the pin top and to cooperate socket, protruding round platform 102 to be stuck in down in the mating holes 103 that pin is provided with; Be arranged in order on the last pipe bar 14 and be provided with more than one positioning hole 17; The upper end of following pin one 5 is provided with the protrusion mouth of pipe 18 that communicates with following pin; The protrusion mouth of pipe 18 is provided with position control device 16, and described position control device 16 is the extension or the compression control of spring 23, and described position control device 16 comprises steering tiller 21, positioning sleeve 22, spring 23 and location axostylus axostyle 24; Positioning sleeve 22 is fixed on through being threaded in the protrusion mouth of pipe 18; Steering tiller 21 and positioning sleeve 22 sockets, location axostylus axostyle 24 comprises top axostylus axostyle and lower part axostylus axostyle, the lower part shaft diameter is greater than the top shaft diameter; Location axostylus axostyle 24 passes positioning sleeve 22 and fixes with steering tiller 21 screw threads, and spring 23 is positioned at positioning sleeve 22 and spring 23 is socketed on the axostylus axostyle of top.

Last pipe bar 14 is provided with figure notation 101; The corresponding figure notation of locating hole; To be positioned at the corresponding figure notation of first locating hole of pipe bar lower end be 1, be 2 such as second locating hole figure notation above first locating hole; The rest may be inferred in addition locating hole 17 mark corresponding digital mark 101 from lower to upper, the concrete amount of locating hole 17 is set as required.

Concrete installation, the lifting process of the tables and chairs lowering or hoisting gear that the utility model obtains is: earlier be inserted in pipe box 13 following pin one 5 upper ends of hollow, wherein the protruding round platform 102 that is provided with of pipe box 13 is stuck in down in the mating holes 103 of pin, and position control device 16 is installed in and protrudes the mouth of pipe 18; Pull out earlier and rotate steering tiller 21 again and let the spacing supporting surface 31 that is provided with in the steering tiller cooperate contact, can remain on this height, also drive simultaneously and locate axostylus axostyle 24 with the end face of positioning sleeve; At this moment spring 23 is in compressive state; At this moment the crane body 11 of can packing into is regulated required height, rotates steering tiller 21 then; Because the effect of spring 23; Make steering tiller 21 reset,, reset so also driven location axostylus axostyle 24 because steering tiller 21 is fixing through screw thread with location axostylus axostyle 24.

Claims

1. tables and chairs lowering or hoisting gear; Comprise crane body (11), underframe body (12) and pipe box (13), pipe box (13) is positioned between crane body (11) and the underframe body (12), and crane body (11) comprises pipe bar (14); Underframe body (12) comprises pin (15) down; Last pipe bar (14) places down interior and both the movable cooperations of the hollow position of pin (15), it is characterized in that being arranged in order on the pipe bar (14) being provided with more than one positioning hole (14), and the upper end of following pin (15) is provided with the protrusion mouth of pipe (18) that communicates with following pin; The protrusion mouth of pipe (18) is provided with position control device (16), and described position control device (16) is the extension or the compression control of spring (23).

2. tables and chairs lowering or hoisting gear according to claim 1; It is characterized in that described position control device (16) comprises steering tiller (21), positioning sleeve (22), spring (23) and location axostylus axostyle (24); Positioning sleeve (22) is fixed on through being threaded in the protrusion mouth of pipe (18); Steering tiller (21) and positioning sleeve (22) socket, location axostylus axostyle (24) comprises top axostylus axostyle and lower part axostylus axostyle, the lower part shaft diameter is greater than the top shaft diameter; Location axostylus axostyle (24) passes positioning sleeve (22) and fixes with steering tiller (21) screw thread, and spring (23) is positioned at positioning sleeve (22) and spring (23) is socketed on the axostylus axostyle of top.

3. tables and chairs lowering or hoisting gear according to claim 1; It is characterized in that described pipe box (13) is provided with integrated protruding round platform (102); Pipe box (13) places down in pin (15) top and to cooperate socket, protruding round platform (102) to be stuck in down in the mating holes (103) that pin (15) is provided with.

4. tables and chairs lowering or hoisting gear according to claim 1; It is characterized in that pipe bar (14) is provided with figure notation (101); The corresponding figure notation (101) of a locating hole (17); Being positioned at the corresponding figure notation of first locating hole of pipe bar lower end is 1, the rest may be inferred in addition locating hole (17) mark corresponding digital mark (101) from lower to upper.