CN205603134U - Improvement of short slider structure for lift post - Google Patents
Improvement of short slider structure for lift post Download PDFInfo
- Publication number
- CN205603134U CN205603134U CN201620273716.3U CN201620273716U CN205603134U CN 205603134 U CN205603134 U CN 205603134U CN 201620273716 U CN201620273716 U CN 201620273716U CN 205603134 U CN205603134 U CN 205603134U
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- slide block
- inner tube
- wall
- lifting column
- slider
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Abstract
The utility model discloses an improvement of short slider structure for lift post, the lift post is cup jointed by at least two sleeve pipes each other to be constituteed, including inner tube and outer tube, is equipped with first slider and second slider between inner tube and the outer tube in per two sleeve pipes that cup joint each other, first slider fix the inner wall bottom of outer tube and with inner tube sliding fit, the second slider fix the outer wall top of inner tube and with outer tube sliding fit, its characterized in that: first slider is the loop configuration, one of them terminal surface of first slider extends towards the second slider has first clamping part, be equipped with the ring groove who uses with first clamping part lock joint on the inner wall of outer tube, be equipped with on the inner wall of first slider and reduce between first slider and the outer wall of the inner tube falling of frictional force and hinder the mechanism, reduce the frictional force of short slider and inner tube, increase the life of lift post.
Description
[technical field]
This utility model relates to the improved structure of the short slide block of a kind of lifting column.
[background technology]
Elevating mechanism is widely used on the adjustable for height article such as bed, chair, desk, and main function is the flexible movement that load is made straight line by self.
Existing elevating mechanism the most all has the sleeve pipe of some mutual sockets, and elevating mechanism drives to be mutually shifted between sleeve pipe by actuating device and realizes the flexible of elevating mechanism.The Chinese patent of such as Publication No. CN104254264A discloses a kind of lifting column being preferably used to Height Adjustable table, this lifting column is mainly made up of guiding piece, mandrel unit and motor unit, its guiding piece is formed by first component, second component, the 3rd parts three parts intussusceptions each other exactly totally, motor unit mainly provides power, and mandrel unit (being equivalent to actuating device) connects guiding piece and motor unit the power of motor unit to pass to guiding piece and then realizes driving guiding piece to stretch.And the Chinese patent that Authorization Notice No. is CN203095510U discloses a kind of elevating mechanism, the guiding piece of this elevating mechanism is then formed by outer tube and two parts intussusceptions of inner tube.But no matter being to be formed by two parts intussusceptions or formed by three parts or more multi-part intussusception each other, adjacent two parts will certainly produce friction during relatively sliding.For reducing friction, therefore it is accomplished by between adjacent two parts, arranging slide block so that adjacent two parts slide relatively.
So, this for this elevating mechanism the structure of slide block be very important, in prior art, slide block is generally made up of short slide block and slim slide block, and the coefficient of friction between its short-and-medium slide block self and inner tube is extremely important, is related to the service life of elevating mechanism.
[utility model content]
Problem to be solved in the utility model is just to provide the improved structure of the short slide block of a kind of lifting column, reduces the frictional force between short slide block and inner tube, increases the service life of lifting column.
For solving above-mentioned technical problem, this utility model adopts the following technical scheme that
A kind of improved structure of the short slide block of lifting column, described lifting column is mutually socketed by least two sleeve pipe and forms, the sleeve pipe that each two is mutually socketed includes inner and outer tubes, the first slide block and the second slide block it is provided with between inner and outer tubes, described first slide block is fixed on the inwall bottom of outer tube and is slidably matched with inner tube, described second slide block is fixed on the outer wall top of inner tube and is slidably matched with outer tube, it is characterized in that: described first slide block is loop configuration, described first slide block wherein end face is extended with the first clamping part towards the second slide block, the inwall of described outer tube is provided with and the annular slot of the first clamping part snapping, the inwall of described first slide block is provided with and reduces the Jiang Zu mechanism of frictional force between the first slide block and outer wall of inner tube.
Preferably, described Jiang Zu mechanism includes the annular oil storage tank being located at the inwall of described first slide block.
Preferably, in described first slide block towards the second slide block direction end face and annular oil storage tank between be provided with oil-feed tank.
Preferably, described Jiang Zu mechanism includes the multiple balls being located on the inwall of described first slide block.
Preferably, described first slide block is extending radially outward on the end face away from the second slide block annular flange flange, described outer tube wall is provided with axial chute, and the outer wall of described first slide block is provided with the positioning strip preventing the first slide block from rotating, and described positioning strip inserts in described chute.
Preferably, the outer wall of said inner tube is provided with provides the relief portion dodging space when mounted for the first slide block clamping part, and described relief portion is the blind hole or through hole being located on outer wall of inner tube.
The beneficial effects of the utility model: the short slide block in the lifting column in this utility model, i.e. first slide block is loop configuration, during installation, the first slide block directly packs into from the bottom of inner tube, then the first clamping part on the first slide block is utilized to realize snapping with outer tube, additionally, this utility model is provided with on the inwall of the first slide block the Jiang Zu mechanism for reducing frictional force between the first slide block and inner tube, is effectively reduced frictional resistance, increase the service life of lifting column.
These features of the present utility model and advantage will be detailed in following detailed description of the invention, accompanying drawing exposure.
[accompanying drawing explanation]
Below in conjunction with the accompanying drawings this utility model is described further:
Fig. 1 is the structural representation of whole elevating mechanism embodiment 1；
Fig. 2 is the exploded perspective view of lifting column in whole elevating mechanism embodiment 1；
Fig. 3 is the assembling schematic diagram of lifting column in whole elevating mechanism embodiment 1；
Fig. 4 is the structural representation of the first slide block in elevating mechanism embodiment 2.
[detailed description of the invention]
The technical scheme of this utility model embodiment is explained and illustrated by the accompanying drawing below in conjunction with this utility model embodiment, but following embodiment is only preferred embodiment of the present utility model, and not all.Based on the embodiment in embodiment, those skilled in the art are obtained other embodiments on the premise of not making creative work, broadly fall into protection domain of the present utility model.
nullWith reference to Fig. 1～3，A kind of improved structure of the short slide block of lifting column，Whole elevating mechanism includes base 1，On base 1, lifting column is installed，Actuating device for driving lifting column to stretch is installed in base 1，Actuating device includes motor 11，Motor 11 outfan connecting worm，Worm engaging has worm gear 12，Worm gear 12 coaxial transmission connects screw mandrel 10，It is to drive screw mandrel 10 to rotate that motor 11 rotates，Screw mandrel 10 is provided with feed screw nut 13，Feed screw nut 13 oscilaltion is driven when screw mandrel 10 rotates，Described lifting column is mutually socketed by least two sleeve pipe and forms，Nut drives sleeve pipe oscilaltion，According to actual needs，Multiple nuts can be set to realize Multi-stage sleeve lifting，The present embodiment has three sleeve pipes，First sleeve it is respectively outward by interior、Second sleeve pipe、3rd sleeve pipe，The sleeve pipe that each two is mutually socketed includes inner tube 2 and outer tube 3，As a example by the combination of first sleeve and the second sleeve pipe，First sleeve is inner tube 2，Second sleeve pipe is outer tube 3，The first slide block 4 and the second slide block 5 it is provided with between inner tube 2 and outer tube 3，Described first slide block 4 is fixed on bottom the inwall of outer tube 3 and is slidably matched with inner tube 2，I.e. first slide block 4 is relative with inner tube 2 to slide，Described second slide block 5 is fixed on the outer wall top of inner tube 2 and is slidably matched with outer tube 3，Second slide block 5 is slides relative with outer tube 3，Wherein in order to easy for installation，Described in the present embodiment, the first slide block 4 is loop configuration，Described first slide block 4 wherein end face is extended with the first clamping part 41 towards the second slide block 5，In the present embodiment, the first clamping part 41 has 4，It is uniformly distributed along the first slide block 4 circumference，The inwall of described outer tube 3 is provided with and the annular slot 31 of the first clamping part 41 snapping，During installation, the first slide block 4 is inserted in from the bottom of outer tube 3，First clamping part 41 realizes snapping in being embedded just below annular slot 31，Install very convenient，And outer tube 3 surface does not haves eyelet yet，Outward appearance is more preferable，Second slide block 5 is also loop configuration，For split type slide block，All-in-one-piece loop configuration is installed more convenient，And firmness is more preferable，The slide block of monomer is easily deformed，The inwall of described second slide block 5 is provided with the second buckle group，Described second buckle group is at least distributed two groups along the second slide block 5 inwall circumference，In the present embodiment, the second buckle group has four groups，The most often organize the second buckle group and have two the second clamping parts 51 along the second slide block 5 axial directional distribution，In the present embodiment, two the second clamping parts 51 in axial direction set relatively，The outer wall of said inner tube 2 is provided with and the block button hole 22 of the second clamping part 51 snapping，Block button hole 22 and the position of the second clamping part 51、Quantity is corresponding，In the present embodiment, the axial length of the second slide block 5 is greater than the axial length of the first slide block 4，Because the second slide block 5 primarily serves the effect being to guide or guide，Axial direction relative contact is long-pending bigger，And the first slide block 4 primarily serves phorogenesis，Axial direction contact area is little.So that install during the second slide block 5 more laborsaving, described second slide block 5 is externally provided with separating tank 52 at the profile of each second clamping part 51, as shown in FIG., the second clamping part 51 in the present embodiment is substantially in kidney-shaped shape, and separating tank 52 is the most substantially in kidney-shaped shape, when second slide block 5 is inserted in inner tube 2, the second clamping part 51 is by the elastic deformation of the gap generation radial direction of separating tank 52, until the second clamping part 51 successfully embeds in block button hole 22.For the first slide block 4, when first slide block 4 snaps in outer tube 3, first clamping part 41 is also to need certain elastic space, the outer wall of inner tube 2 described in the present embodiment is provided with the first clamping part for the first slide block 4 and provides the relief portion 23 dodging space when mounted, when first slide block 4 assembles, first clamping part 41 can produce elastic deformation in the space of relief portion 23, relief portion 23 arranges the bottom of inner tube 2, the top that can avoid inner tube 2 arranges too much hole, inner tube 2 top intensity is caused to reduce, described relief portion 23 is to be located at the blind hole on inner tube 2 outer wall or through hole.
In the present embodiment, the problem having some setbacks of sliding is caused in order to prevent dust etc. from adhering on inner tube 2 outer wall, the present embodiment is cased with undulatory dust-proof sheath 7 outside described outer tube 3, and undulatory dust-proof sheath 7 can be according to the flexible situation generation elastic deformation of lifting column.
nullAdditionally，During in order to avoid outer tube 3 and inner tube 2 to slide into ultimate range，There is rigid collision in the first slide block 4 and the second slide block 5，Inner tube 2 described in the present embodiment is provided with limited ring groove 21 between the first slide block 4 and the second slide block 5，It is provided with elastic spacing circle 20 in described limited ring groove 21，Elastic spacing circle 20 is preferably rubber ring，The present embodiment Elastic spacing collar 20 is located at position near the second slide block 5，In traditional elevating mechanism when outer tube 3 up moves，First slide block 4 and then up slides，When sliding into close to ultimate range，Directly there is rigid collision with the second slide block 5 in the first slide block 4，Owing to the form that the first slide block 4 and the second slide block 5 are buckles is fixed，As easy as rolling off a log abjection under rigid collision，The first slide block 4 or the second slide block 5 is caused to come off，Once slide block comes off，Elevating mechanism just cannot work on，In order to reduce the generation of this phenomenon，The present embodiment adds elastic spacing circle 20，When outer tube 3 up slides，First slide block 4 can preferentially contact with elastic spacing circle 20，The active force to the first slide block 4 of elastic spacing circle 20 is relatively small，The first clamping part 41 that cannot be easily caused in the first slide block 4 comes off，After elastic spacing circle 20 is set simultaneously，Second slide block 5 will not be again by the collision of the first slide block 4，Stability is more preferable，The service life that can allow upgrading mechanism is greatly increased.
In order to strengthen the guide effect of the second slide block 5, the outer wall of described second slide block 5 is extending radially outward rectilinear draw runner 53, in the present embodiment, draw runner 53 has 4, circumference is evenly distributed on the outer wall of the second slide block 5, draw runner 53 is parallel with the second slide block 5 axial direction, described outer tube 3 inwall is provided with the chute 32 matched with draw runner 53, when there is relative slip with inner tube 2 in outer tube 3, draw runner 53 slides in chute 32, in order to reduce the coefficient of friction between draw runner 53 and chute 32, described draw runner 53 is provided with at least 2 balls 6, thus change the sliding friction between draw runner 53 and chute 32 into rolling friction, reduce frictional force, alleviate the wear intensity of draw runner 53.In like manner, in order to reduce the coefficient of friction between the first slide block 4 and inner tube 2 outer wall, the inwall of the present embodiment the first slide block 4 is provided with and reduces the Jiang Zu mechanism of frictional force between the first slide block and inner tube, the present embodiment Zhong Jiangzu mechanism is the multiple balls 6 being located on the inwall on the first slide block, thus change the sliding friction between the first slide block 4 and inner tube 2 outer wall into rolling friction, reduce frictional force, alleviate the wear intensity of the first slide block 4.Those skilled in the art, it is also contemplated that arrange axial mounting groove on draw runner 53, it is provided with the ball mounting bar being provided with multiple ball 6 in mounting groove, ball 6 is so installed more convenient, directly the ball mounting bar being provided with ball 6 is directly snapped in mounting groove.
nullAdditionally，Due in the present embodiment with the first clamping part 41 snapping be annular slot 31，In the case of the most spacing，First slide block 4 is rotary，But under practical situation，This rotation easily causes generation abrasion between the first clamping part 41 and annular slot 31，It is easily caused the first clamping part 41 size distortion for a long time in the past thus departs from annular slot 31，In order to avoid the first slide block 4 is improved by this situation the present embodiment，Described first slide block 4 is extending radially outward on the end face away from the second slide block 5 annular flange flange 42，Annular flange flange 42 is the most spacing, and first slide block 4 positions with the axial of outer tube 3，The micro-displacement making its axial direction is less，The outer wall of the most described first slide block 4 is provided with the positioning strip 43 preventing the first slide block 4 from rotating，Described positioning strip 43 inserts in described chute 32，After positioning strip 43 inserts chute 32，First slide block 4 cannot be rotated，First clamping part 41 can not be rotated in annular slot 31，Alleviate wear intensity.Additionally, for casting aside the present embodiment, in the case of elevating mechanism does not has elastic spacing circle 20, when the first slide block 4 slides near the second slide block 5, the first clamping part 41 in first slide block 4 easily produces physical interference with draw runner 53, so being also intended to the first clamping part 41 is carried out rotary spacing, so in the case of not design flexibility spacing collar 20, positioning strip 43 is utilized to position with chute 32, then the first clamping part 41 and draw runner 53 are mutually staggered setting, be also a kind of scheme avoiding the first slide block 4 to collide with the second slide block 5.
nullEmbodiment 2: the difference with embodiment 1 is，Jiang Zu mechanism in the present embodiment is the annular oil storage tank 45 being located on the inwall of the first slide block 4，After design annular oil storage tank 45，Lubricating oil can be stored temporarily in annular oil storage tank 45，When first slide block 4 slides with inner tube 2 outer wall，The lubricating oil being stored in annular oil storage tank 45 can play lubrication，Reduce the frictional force between the first slide block 4 and inner tube 2，Annular oil storage tank 45 can also reduce the loss of lubricating oil，Waste rate is low，So that lubricating oil can preferably enter in annular oil storage tank 45，In described first slide block 4 towards the second slide block 5 direction end face and annular oil storage tank 45 between be provided with oil-feed tank 46，User only need to smear certain lubricating oil on the outer wall of inner tube 2，When the first slide block 4 slides on inner tube 2 outer wall，Lubricating oil can enter in annular oil storage tank 45 along oil-feed tank 46 automatically.
The above, detailed description of the invention the most of the present utility model, but protection domain of the present utility model is not limited thereto, it is familiar with this those skilled in the art and should be understood that this utility model includes but not limited to accompanying drawing and content described in detailed description of the invention above.Any amendment without departing from function of the present utility model and structural principle is intended to be included in the scope of claims.
Claims (6)
1. an improved structure for the short slide block of lifting column, described lifting column is mutually overlapped by least two sleeve pipe
Connecing composition, the sleeve pipe that each two is mutually socketed includes inner and outer tubes, is provided with first between inner and outer tubes
Slide block and the second slide block, described first slide block is fixed on the inwall bottom of outer tube and is slidably matched with inner tube, institute
State the second slide block be fixed on the outer wall top of inner tube and be slidably matched with outer tube, it is characterised in that: described first
Slide block is loop configuration, and described first slide block wherein end face is extended with the first clamping part, institute towards the second slide block
The inwall stating outer tube is provided with and the annular slot of the first clamping part snapping, on the inwall of described first slide block
It is provided with and reduces the Jiang Zu mechanism of frictional force between the first slide block and outer wall of inner tube.
The improved structure of the short slide block of a kind of lifting column the most as claimed in claim 1, it is characterised in that:
Described Jiang Zu mechanism includes the annular oil storage tank being located at the inwall of described first slide block.
The improved structure of the short slide block of a kind of lifting column the most as claimed in claim 2, it is characterised in that:
In described first slide block towards the second slide block direction end face and annular oil storage tank between be provided with oil-feed tank.
The improved structure of the short slide block of a kind of lifting column the most as claimed in claim 1, it is characterised in that:
Described Jiang Zu mechanism includes the multiple balls being located on the inwall of described first slide block.
5. the improved structure of the short slide block of a kind of lifting column as described in one of Claims 1 to 4, its feature
Be: described first slide block is extending radially outward on the end face away from the second slide block an annular flange flange, described outside
Inside pipe wall is provided with axial chute, and the outer wall of described first slide block is provided with the location preventing the first slide block from rotating
Bar, described positioning strip inserts in described chute.
6. the improved structure of the short slide block of a kind of lifting column as described in one of Claims 1 to 4, its feature
It is: the outer wall of said inner tube is provided with to provide when mounted for the first slide block clamping part dodges dodging of space
Portion, described relief portion is the blind hole or through hole being located on outer wall of inner tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620273716.3U CN205603134U (en) | 2016-04-01 | 2016-04-01 | Improvement of short slider structure for lift post |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620273716.3U CN205603134U (en) | 2016-04-01 | 2016-04-01 | Improvement of short slider structure for lift post |
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| Publication Number | Publication Date |
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| CN205603134U true CN205603134U (en) | 2016-09-28 |
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| CN201620273716.3U Active CN205603134U (en) | 2016-04-01 | 2016-04-01 | Improvement of short slider structure for lift post |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111643741A (en) * | 2020-05-21 | 2020-09-11 | 刘春美 | Adjustable ultrasonic atomization sputum suction tube |
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2016
- 2016-04-01 CN CN201620273716.3U patent/CN205603134U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111643741A (en) * | 2020-05-21 | 2020-09-11 | 刘春美 | Adjustable ultrasonic atomization sputum suction tube |
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