CN2528286Y

CN2528286Y - Lifting mechanism

Info

Publication number: CN2528286Y
Application number: CN 02202938
Authority: CN
Inventors: 李财明
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-02-05
Filing date: 2002-02-05
Publication date: 2003-01-01
Anticipated expiration: 2012-02-05

Abstract

The lifting mechanism consists of a machine base, a movable rack, a fixed rack, a transmission rod and a driving element. The machine base is provided with a front side plate and a rear side plate, and the front side plate is provided with a longitudinal slotted hole; the movable rack is arranged in the slotted hole on the front side plate and can slide up and down along the slotted hole, the tooth surface of the movable rack faces inwards, and the upper end of the outer side of the movable rack is provided with a bearing seat for bearing articles; the fixed rack is vertically arranged on the rear side plate, and the tooth surface of the fixed rack is opposite to the tooth surface of the movable rack and has a proper distance; the transmission rod is a strip-shaped rod body, is vertically arranged between the movable rack and the fixed rack, and is provided with a rolling gear at the lower end and is meshed with the movable rack and the fixed rack simultaneously; the driving element is a linear motion motor and is arranged beside the transmission rod, and the driving shaft end of the driving element is connected with the top end of the transmission rod to drive the transmission rod to move up and down and enable the movable rack to move up and down synchronously, so that the articles placed on the placing seat are lifted to the table top or are lowered into the table.

Description

Elevating mechanism

Technical field

The utility model relates to a kind of with the object that carried emersion desktop or reduce to a elevating mechanism in the table.

Background technology

At present, objects such as computer monitor and television set generally all directly ornaments go up to use at table (cabinet), not only to occupy very big desktop, and attach dust easily, even damage because of accident collision.For this reason, design various elevating mechanisms and carried these objects.When needing to use these objects it is risen from desktop, then it is reduced in the table when not using.But the structure of existing various elevating mechanisms is all very complicated, and lifting action also inadequately steadily, break down easily.And, elevating mechanism bulky, needed installing space even, effective use that can't the implementation space greater than the volume of the object of carrying.

Fig. 1-Fig. 4 promptly is a kind of structural representation of jacking equipment, mainly is made of base 10, lifting unit 20, power part 30, sliding part 40 and withstanding part 50.Base 10 is for the rectangle cell body and be used to hold lifting unit 20, power part 30, sliding part 40 and withstanding part 50.Lifting unit 20 is made up of the linkage type connecting rod 21 of two groups of symmetries, and end link and following end link are connected with withstanding part 50 and base 10 respectively on it, and is installed with chain 33 meshed gears 32 with power part 30 on the connecting rod of stage casing.Power part 30 is made up of two fixed heads 31, gear train 32, chain 33 and drive motor 34, drive the gear 32 that is fixedly arranged on two connecting rods 21 by the gear 32 engagement chains 33 that are fixedly arranged in motor 34 rotating shafts, make connecting rod 21 be able to elevating movement, fixed head 31 and biside plate 35 are connected with and are one and can be with connecting rod 21 knee-actions.Sliding part 40 is made up of the slide block 41 of two groups of symmetries, is located at the both sides of base 10 accommodation spaces 11 respectively, and its inboard slide block and withstanding part 50 are connected with, and utilizes tenon 411 and groove 412 chimeric between adjacent two slide blocks; During for withstanding part 50 knee-actions, slide block 41 also can be pulled makes linear slide up and down.Withstanding part 50 is a rectangle lid, and the inboard connecting rod 21 with lifting unit 20 of its lower edge is connected with, and establish with two inboard slide block spiral shells of sliding part 40 in its outside, makes its interlock that utilizes connecting rod 21 and lifting.

Though but above-mentioned jacking equipment oscilaltion, its structure is very complicated, fault rate height not only, and bulky, and shared space itself is also very big, can not really save the space.

Summary of the invention

The purpose of this utility model promptly is to provide a kind of simple structure, volume is little and lifting elevating mechanism stably.

To achieve these goals, the utility model utilizes support, movable tooth bar, stationary rack, drive link and driving element to constitute a kind of elevating mechanism.Support is made up of substrate and upright front side board and the back side panel of being located on the substrate, and front side board is provided with a bar shape trench hole longitudinally; Movable tooth bar is arranged in the bar shape trench hole on the front side board and can be along bar shape trench hole slippage up and down, its flank of tooth inwardly, its outer upper end is provided with the bearing seat that is used for the bearing object; Stationary rack uprightly is fixed on the support back side panel, and its flank of tooth is corresponding with the movable tooth bar flank of tooth and suitable spacing arranged; Drive link is the bar shaped body of rod, and vertical is arranged between movable tooth bar and the stationary rack, and its bottom is provided with a rolling bearing and meshes with movable tooth bar and stationary rack simultaneously; Driving element is the rectilinear motion motor, and vertical is arranged at drive link one side, and the axle head of its driving shaft is connected with the drive link top.

Based on above structure, when driving element drove drive link and moves up and down, the rolling bearing that can make the drive link bottom was in walking on the stationary rack and make movable tooth bar synchronization-sliding up and down in bar shape trench hole, and then can drive the object up-down of bearing on the bearing seat.Compare with existing jacking equipment, the utility model is simple in structure, volume is littler and lifting is steady.

Be described in further detail below in conjunction with the technical characterictic of specific embodiment the utility model elevating mechanism.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1-the 4th, a kind of structural representation of existing jacking equipment.

Fig. 5 is a three-dimensional exploded view of the present utility model.

Fig. 6 is a three-dimensional combination figure of the present utility model.

Fig. 7 is that the utility model is fallen into the schematic diagram in the table.

Fig. 8 is the I-I cutaway view among Fig. 7.

Fig. 9 is the schematic diagram of the utility model emersion desktop.

Figure 10 is an II-II cutaway view among Fig. 9.

The specific embodiment

As Fig. 5, shown in Figure 6, the utility model elevating mechanism mainly is made up of support 10, movable tooth bar 20, stationary rack 30, drive link 40 and driving element 50.

Shown in Fig. 5-10, support 10 mainly is made up of substrate 11 and upright front side board 12 and the back side panel of being located on the substrate 11 13; Front side board 12 is provided with a vertical bar shape trench hole 14, and its interior plate face is provided with upper limit microswitch 15 and lower limit microswitch 16, and can adjust its spacing by its locking holes 17,18, and this spacing just equals movable tooth bar 20 lifting shift lengths; Support 10 also is provided with a dustproof clamshell 19, but also setting operation shift knob, binding post on the clamshell 19, components and parts such as indicator lamp and supply socket.Movable tooth bar 20 is arranged in the bar shape trench hole 14 on the front side board 12 and can be along bar shape trench hole slippage about in the of 14, its flank of tooth inwardly, its outer upper end is provided with the bearing seat 21 of article 60 such as being used for bearing computer monitor, television set, and the shape of bearing seat 21 can change with the different of article 60 with structure.Stationary rack 30 uprightly is fixed on the back side panel 13, the distance that its flank of tooth is relative and suitable at interval with the flank of tooth of movable tooth bar 20.Drive link 40 is the bar shaped body of rod, uprightly is arranged between movable tooth bar 20 and the stationary rack 30, and its bottom is provided with the flank engagement of a rolling bearing 41 and while and movable tooth bar 20 and stationary rack 30.Driving element 50 is the rectilinear motion motor, uprightly be arranged at drive link 40 1 sides, the top of the axle head of its driving shaft and drive link 40 joins and can drive drive link 40 and moves up and down, thereby the rolling bearing 41 of drive link 40 bottoms is walked on stationary rack 30, the tooth bar 20 of drive activity simultaneously is in up and down slippage of bar shape trench hole 14 inter-syncs, and then makes bearing rise on the desktop 70 or reduce to desktop below 70 at the article on the bearing seat 21 60; And the axle head of driving shaft is provided with a shake-up element 51 (as trundle) and can touches upper limit microswitch 15 and lower limit microswitch 16, and then can control the driving stroke of driving element 50.In addition, also be provided with a power supply unit 80 and controller 90 in the utility model, power supply to be provided and to control its stroke to driving element 50.

In sum as can be known, of the present utility model simple in structure, volume is little and lifting is steady, fault rate is low, so be specially adapted to rise to the article of bearing in its top on the desktop or reduce in the desktop.

Claims

1, a kind of elevating mechanism is characterized in that being made up of support, movable tooth bar, stationary rack, drive link and driving element; Support is made of substrate and the upright forward and backward side plate of being located on the substrate, and front side board is provided with a bar shape trench hole longitudinally; Movable tooth bar is arranged in the bar shape trench hole on the front side board and can be along bar shape trench hole slippage up and down, its flank of tooth inwardly, its outer upper end is provided with the bearing seat that is used for the bearing article; Stationary rack uprightly is fixed on the back side panel, its flank of tooth and be separated by suitable distance corresponding with the movable tooth bar flank of tooth; Drive link is the bar shaped body of rod, uprightly is arranged between movable tooth bar and the stationary rack, and its bottom is provided with a rolling bearing and while and movable tooth bar and stationary rack flank engagement; Driving element is the rectilinear motion motor, uprightly is arranged at drive link one side, and the axle head of its driving shaft is connected with the top of drive link.

2, elevating mechanism according to claim 1 is characterized in that described support front side board inboard is provided with upper limit microswitch and lower limit microswitch, and its spacing equals the distance of movable tooth bar lifting displacement.

3, elevating mechanism according to claim 1 is characterized in that described support is provided with a clamshell.

4, elevating mechanism according to claim 1 is characterized in that the drive shaft end of described driving element is provided with the shake-up element that can touch the upper and lower limit switch.

5, elevating mechanism according to claim 4 is characterized in that described shake-up element is a trundle.