CN206462676U

CN206462676U - Lowering or hoisting gear

Info

Publication number: CN206462676U
Application number: CN201621135919.2U
Authority: CN
Inventors: 吴伟凡
Original assignee: J-STAR Co Ltd
Current assignee: J-STAR Co Ltd
Priority date: 2016-10-19
Filing date: 2016-10-19
Publication date: 2017-09-05
Anticipated expiration: 2026-10-19

Abstract

The utility model discloses a kind of lowering or hoisting gear, and it includes：One first body, one second body, one drive component and one the 3rd body, motor rotation drives the driving screw rod, and by the driving screw rod simultaneous linkage sliding block and driving gear, the sliding block will produce straight-line displacement along the rotation of the driving screw rod, the 3rd body is promoted to be stretched whereby, the driving gear can drive driven gear to produce reverse rotation, and the driven screw is driven by driven gear, now driven gear can drive driven screw to produce not swing offset, the telescopic variation of identical 3rd body of the first body progress is promoted using driven screw, the application target of bidirectional synchronous telescopic is reached by simple structure whereby, with under the premise of the basic function with flexible adjustment, with low cost, small size and the high characteristic of durability.

Description

Lowering or hoisting gear

Technical field

The utility model is related to a kind of lowering or hoisting gear, espespecially a kind of high with low cost, small size and durability Lowering or hoisting gear.

Background technology

In order to lift quality of life, the furniture such as many chairs, desk, can be further all on the premise of stable use is reached Improvement makes its more preferably hommization and convenient use, and common improved procedure is to be equiped with height adjustment machine in feet or chair leg Structure, mainly by screw rod and fixed screwed pipe seat, turn control of the joystick for closing gear train reaches the behaviour of rotation and lifting Control, sees above-mentioned existing structure and is not difficult to realize that it has remained a little weak point, main cause is as follows in detail：Existing screw drive If being driven using single motor, the quantity of the screw rod and gear will significantly increase, and can use longer screw rod, cause volume Seem heavy greatly, when being driven respectively according to multiple motors, can not equally form lightweight, and the relative raising of the cost, control Also relative complex in system to be easily damaged, its global design is in the case of cost and limited practicality, it is impossible to reach effective diminution Volume and the effect for reducing cost, with existing lift adjustment structure, there is the necessity further designed and developed in fact.

Utility model content

The utility model technical problem to be solved is that the disadvantages mentioned above existed for prior art rises there is provided one kind Falling unit.

The utility model provides a kind of lowering or hoisting gear, includes：

One first body, one end of first body is formed with an accommodating opening, and the other end of first body is formed There is a bottom plate, and a lockhole is offered at the bottom plate, coaxially a driven screw, and the driven screw are equipped with first body It is locked at lockhole；

One second body, one end of second body offers one and inserts opening, and is combined in the other end of the second body There is a baffle plate, the inside of second body is provided with a driving gear and a driven gear above baffle plate, second body dress It is placed in the first body, driven screw can wear the baffle plate and driven gear, and engage the driven screw by driven gear；

One drive component, the drive component includes a motor, a driving screw rod, a locating part and a sliding block, the motor Connect one end of the driving screw rod, and the other end of the driving screw rod is incorporated into the driving gear, the locating part be placed in this In two bodys, and the locating part is contradicted and the spacing driving gear and driven gear with a fixed plate, and the driven screw can be worn The fixed plate is crossed, the locating part, which encloses, to be set driving screw rod and be formed with two semi-circular tubes, and the semi-circular tube is connected to motor by fixed plate, The sliding block offers a screw, and is connected to screw at the driving screw rod, and the sliding block coordinates the semi-circular tube to offer two semicircles Groove, the anti-rotation that semi-circular tube is arranged in half slot formation sliding block is spacing, and the sliding block offers a fixing hole；And

One the 3rd body, one end of the 3rd body offers a hollow out opening, and the 3rd body is placed in second pipe In vivo, the 3rd body offers an open-work at neighbouring hollow out opening, and by a bolt lock located at open-work and sliding block fixation At hole.

Wherein, the driving gear is convexly equipped with a fixture block, and the one end of the driving screw rod away from motor offers a neck, and The synchronous rotary that the fixture block is formed between driving screw rod and driving gear is combined by the neck.

Wherein, a clutch shaft bearing is equiped between the baffle plate and driving gear and between baffle plate and driven gear.

Wherein, the locating part is equiped with a second bearing between fixed plate and semi-circular tube.

First main purpose of the present utility model is that motor rotation drives the driving screw rod, and same by driving screw rod The Shi Liandong sliding blocks and the driving gear, the sliding block will produce straight-line displacement along the rotation of the driving screw rod, promote whereby 3rd body is stretched, and the driving gear can drive driven gear to produce reverse rotation, and driven by driven gear should be from Screw rod is moved, now driven gear can drive driven screw to produce not swing offset, promote the first body to enter using driven screw The telescopic variation of identical 3rd body of row, is reached the application target of bidirectional synchronous telescopic, with low by simple structure whereby Cost, small size and the high characteristic of durability reach the basic function of flexible adjustment.

Brief description of the drawings

Fig. 1 is stereogram of the present utility model.

Fig. 2 is three-dimensional exploded view of the present utility model.

Fig. 3 is sectional view of the present utility model.

Fig. 4 is use state schematic diagram (one) of the present utility model.

Fig. 5 is use state schematic diagram (two) of the present utility model.

In figure：

First body --- 10；

Accommodating opening --- 11；

Bottom plate --- -- 12；

Lockhole --- -- 121；

Driven screw --- 13；

Second body --- 20；

Insert opening --- 21；

Baffle plate --- -- 22；

Driving gear --- 23；

Fixture block --- -- 231；

Driven gear --- 24；

Bearing --- -- 25

Drive component --- 30；

Motor --- -- 31；

Driving screw rod --- 32；

Neck --- -- 321；

Locating part --- -33；

Fixed plate --- -331；

Semi-circular tube --- -332；

Sliding block --- -- 34；

Screw --- -- 341；

Half slot --- -342；

Fixing hole --- -343；

Bearing --- -- 35；

3rd body --- 40；

Hollow out opening --- 41；

Open-work --- -- 42；

Bolt --- -- 43.

Embodiment

The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, so that those skilled in the art The utility model can be better understood from and can be practiced, but illustrated embodiment is limited not as to of the present utility model.

First please as shown in Fig. 1 and Fig. 2, the utility model provides a kind of lowering or hoisting gear, and it includes：One first body 10, One second body 20, a drive component 30 and one the 3rd body 40, one end of first body 10 are formed with an accommodating opening 11, The other end of first body 10 is formed with a bottom plate 12, and a lockhole 121 is offered at the bottom plate 12, in first body 10 Coaxially a driven screw 13 is equipped with, and the driven screw 13 is locked at lockhole 121, one end of second body 20 is offered One inserts opening 21, and is combined with a baffle plate 22 in the other end of the second body 20, and inside second body 20 in baffle plate At 22（Top）A driving gear 23 and a driven gear 24 are provided with, second body 20 loads the first body with the end of baffle plate 22 10 accommodating opening 11, allows driven screw 13 to be arranged in the baffle plate 22 and driven gear 24, and engage this by driven gear 24 Driven screw 13 a, drive component 30 includes a motor 31, a driving screw rod 32, a locating part 33 and a sliding block 34, the horse Output up to 31 connects one end of the driving screw rod 32, and the other end gearing of the driving screw rod 32 is incorporated into the driving gear 23, the driving gear 23 is convexly equipped with a fixture block 231, and the one end of the driving screw rod 32 away from motor 31 offers a neck 321, And the synchronous rotary of driving screw rod 32 and driving gear 23 is formed with reference to the fixture block 231 by neck 321, the locating part 33 is placed in In second body 20, and the locating part 33 contradicts the spacing driving gear 23 and driven gear 24 with a fixed plate 331, and is somebody's turn to do Driven screw 13 can pass through the fixed plate 331, and the locating part 33, which encloses, to be set driving screw rod 32 and be formed with two semi-circular tubes 332, and should half Pipe 332 is connected to motor 31 by fixed plate 331, and the sliding block 34 offers a screw 341, and is connected to the master with screw 341 At dynamic screw rod 32, the sliding block 34 coordinates the semi-circular tube 332 to offer two half slots 342, allows semi-circular tube 332 to be arranged in half slot 342 formed sliding blocks 34 anti-rotation it is spacing, the sliding block 34 offers a fixing hole 343, wherein, the baffle plate 22 and driving gear 23 it Between and baffle plate 22 and driven gear 24 between be equiped with a bearing 25, improve driving gear 23 and driven tooth by bearing 25 The smooth rotation degree and position limitation of wheel 24, the locating part 33 are equiped with a bearing between fixed plate 341 and semi-circular tube 332 35, allow driving screw rod 32 to wear bearing 35 and form spacing with aiding in rotating, one end of one the 3rd body 40 offers a hollow out and opened Mouthfuls 41, the 3rd body 40 inserts opening 21 with what second body 20 was inserted at the end of hollow out opening 41, and the 3rd body 40 is in neighbour An open-work 42 is offered at nearly hollow out opening 41, and the fixing hole 343 of open-work 42 and sliding block 34 is locked on by a bolt 43, is borrowed Driving screw rod 32, driving gear 23, driven gear 24 and driven screw 13, and then the first body of synchronous promotion are interlocked by motor 31 10 and the 3rd relative second body 20 formation telescopic variation of body 40.

The combination of its structure, then please as shown in Fig. 1, Fig. 2, Fig. 3, second body 20 is fixed with baffle plate 22 and axle in one end Hold 25, and be provided with the driving gear 23 and driven gear 24 being meshed at the bearing 25 of the inner side of the second body 20, then with the The accommodating opening 11 of first body 10 is inserted at the end of baffle plate 22 of two bodys 20, and locks driven screw 13 at lockhole 121, together When the driven gear 24 is rotated through with driven screw 13, driven screw 13 can be promoted to produce do not revolve when allowing driven gear 24 to rotate The position movement turned, the another drive component 30 links driving screw rod 32 with motor 31, then is threaded through the cunning by driving screw rod 32 The screw 341 of block 34, and the semi-circular tube 332 of locating part 33 is sheathed on driving screw rod 32, while allowing semi-circular tube 332 to pass through the cunning The half slot 342 of block 34, now the semi-circular tube 332 is connected between motor 31 and fixed plate 331, and the driving screw rod 32 is passed through The fixed plate 331, further contradicts fixed plate 331 drive component 30 by inserting in 21 the second bodys of device 20 of opening In the driving gear 23 and driven gear 24, and form the combination of the body 20 of fixed plate 331 and second and fix, now allow active spiral shell Bar 32 can be arranged in the driving gear 23, and form the combination of the neck 321 of driving screw rod 32 and the fixture block 231 of driving gear 2 It is fixed, opening 21 finally is inserted with what the second body 20 was inserted at the end of hollow out opening 41 of the 3rd body 40, and open-work 42 is aligned The fixing hole 343 of the sliding block 34, then the open-work 42 and fixing hole 343 are locked on by bolt 43, that is, complete the combination of its structure.

Its actual use situation, continues please shown in Fig. 2 with Fig. 4, Fig. 5, when the utility model to be extended, with electric power The motor 31 is driven, allows motor 31 to rotate forward and drives the driving screw rod 32, and by the simultaneous linkage of driving screw rod 32 sliding block 34 with being somebody's turn to do Driving gear 23, the sliding block 34 are because the stop of the semi-circular tube 332 by locating part 33, situation about can not be rotated in sliding block 34 Under, the sliding block 34 will along the driving screw rod 32 rotating forward produce straight-line displacement, allow sliding block 34 by the end movement of fixed plate 331 extremely The end of motor 31, while using the mutual locking of the body 40 of sliding block 34 and the 3rd, and then the 3rd body 40 is promoted by the second body 20 ends are stretched out, on the other hand, and the driving gear 23 can drive driven gear 24 to produce reversion, and be driven by driven gear 24 The driven screw 13, because the one end of driven screw 13 is fixed at first body 10, can not be revolved by the stop of the first body 10 Turn the driven screw 13, now driven gear 24 can drive driven screw 13 to produce not swing offset, utilize driven screw 13 Promote the first body 10 to be stretched out by the end of the second body 20, reach the use mesh of bi-directional synchronization elongation by simple structure whereby , as long as conversely, the reversion of motor 31 is with regard to the energy synchronous body 40 of the first body 10 and the 3rd, in order to with flexible adjustment Basic function under the premise of, with low cost, small size and the high characteristic of durability.

Embodiment described above is only the preferred embodiment to absolutely prove the utility model and being lifted, the utility model Protection domain not limited to this.Equivalent substitute or change that those skilled in the art are made on the basis of the utility model Change, within protection domain of the present utility model.Protection domain of the present utility model is defined by claims.

Claims

1. a kind of lowering or hoisting gear, it is characterised in that include：

One first body, one end of first body is formed with an accommodating opening, and the other end of first body is formed with one Bottom plate, and a lockhole is offered at the bottom plate, it is coaxial in first body to be equipped with a driven screw, and driven screw locking At lockhole；

One second body, one end of second body offers one and inserts opening, and is combined with one in the other end of the second body Baffle plate, the inside of second body is provided with a driving gear and a driven gear above baffle plate, and second body is installed on In first body, driven screw can wear the baffle plate and driven gear, and engage the driven screw by driven gear；

One drive component, the drive component includes a motor, a driving screw rod, a locating part and a sliding block, motor connection One end of the driving screw rod, and the other end of the driving screw rod is incorporated into the driving gear, the locating part is placed in second pipe In vivo, and the locating part is contradicted and the spacing driving gear and driven gear with a fixed plate, and the driven screw can be through should Fixed plate, the locating part, which encloses, to be set driving screw rod and is formed with two semi-circular tubes, and the semi-circular tube is connected to motor by fixed plate, the cunning Block offers a screw, and is connected to screw at the driving screw rod, and the sliding block coordinates the semi-circular tube to offer two half slots, and half The anti-rotation that pipe is arranged in half slot formation sliding block is spacing, and the sliding block offers a fixing hole；And

One the 3rd body, one end of the 3rd body offers a hollow out opening, and the 3rd body is placed in second body, 3rd body offers an open-work at neighbouring hollow out opening, and by a bolt lock located at open-work and the fixing hole of sliding block.

2. lowering or hoisting gear according to claim 1, it is characterised in that wherein, the driving gear is convexly equipped with a fixture block, and should The one end of driving screw rod away from motor offers a neck, and forms driving screw rod and driving gear with reference to the fixture block by the neck Between synchronous rotary.

3. lowering or hoisting gear according to claim 1, it is characterised in that wherein, between the baffle plate and driving gear and keep off A clutch shaft bearing is equiped between plate and driven gear.

4. lowering or hoisting gear according to claim 1, it is characterised in that wherein, the locating part in fixed plate and semi-circular tube it Between be equiped with a second bearing.