CN209073665U - A kind of lifting table leg with worm-and-wheel commutator - Google Patents
A kind of lifting table leg with worm-and-wheel commutator Download PDFInfo
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- CN209073665U CN209073665U CN201820944722.6U CN201820944722U CN209073665U CN 209073665 U CN209073665 U CN 209073665U CN 201820944722 U CN201820944722 U CN 201820944722U CN 209073665 U CN209073665 U CN 209073665U
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Abstract
The utility model relates to go up and down table leg technical field, especially a kind of lifting table leg with worm-and-wheel commutator.This lifting table leg with worm-and-wheel commutator, including the push rod in lifting pipe and lifting pipe, top of lifting tube is embedded with worm-and-wheel commutator, the lifting of the output end driving lifting pipe inner push-rod of worm-and-wheel commutator, worm-and-wheel commutator includes cabinet, intermeshing second worm gear for being located in the box body portion and the second worm screw, and the axis of the axis of the second worm screw and the second worm gear is in vertical state；For second worm screw for connecting with external driver device, the screw rod of the second worm gear and push rod is coaxially connected.The utility model structure is simple, easy to operate, and top of lifting tube is embedded with worm-and-wheel commutator, by the work of worm-and-wheel commutator, the height of adjustment lifting table leg, and maintains stability of the lifting table leg in lifting process.
Description
Technical field
The utility model relates to go up and down table leg technical field, especially a kind of same table with worm-and-wheel commutator
Leg.
Background technique
With the rapid development of society, automation, the office desk and chair of hommization, desk and chair increasingly become now people's
It is preferred.For the hardware facility office desk and chair in school, table frame part mostly uses the fixed design of height, and state
Interior students in middle and primary schools generally face huge school work burden again, need to sit up straight the reading learning before desk for a long time, this is for place
Easily cause a series of diseases such as hunchback, deformation of spinal column, high-low shoulder for the students in middle and primary schools of growth and development stage, it is more serious can
Cause the Physiological Psychology disease of students in middle and primary schools.Secondly traditional for needing to sit the personage to handle official business at a desk for a long time
It is highly fixed to design the scope of activities for having confined city white collar, similarly cause many occupational diseases.
Based on the above reasons, international and domestic relevant enterprise lift frame of desk all of new generation in exploitation, but new
Table leg deficient in stability in lifting process is gone up and down, there are security risks, and price is more expensive, influences the popularization of product.
Conventional electric lifting office desk is risen usually using two lifting table legs, this electric lifting office desk using four
Table leg drops, and table leg sectional dimension is small, stable structure.But transmission system is come, hide the section of the driving tube assembly into table leg
Size needs accordingly to do small, and for save the cost, complete machine uses two motors, and each motor passes through connecting rod two same tables of driving
Leg, motor come with the worm and worm gear of large speed ratio, so that connecting rod revolving speed significantly reduces, reduce noise and vibration.
Connecting rod is connect by a gear-box with push rod, and general such gear is passed using skew gear or using bevel gear
It is dynamic, but the oversized table leg for being not placed into the most narrow place≤42mm in this section of said gear, therefore it is not able to satisfy production requirement.
Utility model content
Technical problem to be solved by the utility model is: overcoming the deficiencies in the existing technology, provide a kind of with worm screw snail
The lifting table leg of wheeled commutator.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of with worm-and-wheel commutator
Table leg is gone up and down, including the push rod in lifting pipe and lifting pipe, top of lifting tube is embedded with worm-and-wheel commutator, worm and wormwheel
The lifting of the output end driving lifting pipe inner push-rod of formula commutator,
The worm-and-wheel commutator includes cabinet, intermeshing second worm gear for being located in the box body portion and the second snail
The axis of bar, the axis of the second worm screw and the second worm gear is in vertical state；Second worm screw is used to connect with external driver device
It connects, the screw rod of the second worm gear and push rod is coaxially connected.
Further, there is threaded hole, lifting pipe and worm-and-wheel on the cabinet of the worm-and-wheel commutator
It is bolted between the cabinet of commutator.
Further, second worm gear has through-hole, and coaxially connected, silk is realized in the screw rod inserting of push rod in through-holes
Transmission can be connected by spline, the modes such as flat position between bar and the second worm gear.
Further, the cabinet is Hafu-type, is divided into two parts, and link together by fastening screw.
Further, the two sides of second worm screw are respectively provided with a first bearing；The two sides of second worm gear are respectively provided with
One second bearing.
Further, the two sides of second worm screw are respectively provided with a first bearing；The two sides of second worm gear are respectively provided with
One second bearing；Second worm screw is equipped with one-way damper close to one end of external driver device, and the second worm screw is far from external
One end of driving device is equipped with thrust ball bearing with flat seat, and one-way damper and thrust ball bearing with flat seat are respectively positioned in first bearing
Side.
Further, second worm gear and the second worm screw are a pair of of reduction ratio less than 3 and the worm gear of number of threads >=4
Worm screw meshing transmission structure.
Further, the lifting pipe includes the outer tube of expansion fit and outer tube, the middle pipe of inner tube or expansion fit
And inner tube；The outer tube of lifting pipe is equipped with decorative panel connector.
Further, the top of lifting tube is equipped with the table leg cover board that worm-and-wheel commutator is fixedly mounted, table
Offer worm-and-wheel commutator peace worm-and-wheel commutator being fixed by screws on table leg cover board on leg cover board
Hole is filled, axle sleeve is equipped in worm-and-wheel commutator mounting hole, drop is equipped between axle sleeve and worm-and-wheel commutator mounting hole
The shock-absorbing sleeve of low worm-and-wheel commutator running noise.
The beneficial effects of the utility model are: the utility model structure is simple, design is rationally, easy to operate, goes up and down tube top
End is embedded with worm-and-wheel commutator, when driving the shaft rotation of worm screw rotation, since shaft and worm-and-wheel are changed
Worm screw into device is coaxially connected so that worm screw rotates, to drive so that rotated with the coaxially connected screw rod of worm gear, screw rod with
Push rod connection in lifting pipe, to drive lifting table leg lifting；The adjustable lifting table leg of worm-and-wheel commutator operation
Ramp rate (height), keep stabilization of the lifting table leg in lifting process；Worm screw is adopted in worm-and-wheel commutator simultaneously
With bull large pitch, and when bearing to rise carrying using the bearing that can bear axial force worm screw axial force, this transmission side
Formula efficiency is higher than traditional Worm Wheel System, and noise is got well than common involute meshed gears is driven with vibration.
Detailed description of the invention
The present invention will be further described with embodiment with reference to the accompanying drawing.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of worm-and-wheel commutator in embodiment 1；
Fig. 3 is the structural schematic diagram of the worm-and-wheel commutator assembled；
Fig. 4 is the structural schematic diagram that electricity drives lifting type table pushing device in embodiment 1；
Fig. 5 is the structural schematic diagram of driving motor and transmission device；
Fig. 6 is external covering decorative panel and the uninstalled structural schematic diagram of lifting pipe；
Fig. 7 is external covering decorative panel and lifting pipe installation condition schematic diagram；
Fig. 8 is the structural schematic diagram of motor box；
Fig. 9 is the structural schematic diagram that electricity drives lifting type table pushing device in embodiment 2；
Figure 10 is the structural schematic diagram of table leg deceleration reversing arrangement in embodiment 2；
Figure 11 is the structural schematic diagram that electricity drives lift desk table frame in embodiment 2；
Figure 12 is the structural schematic diagram that electricity drives lifting type table pushing device in embodiment 3；
Figure 13 is the partial enlarged view in Figure 12 at A；
Figure 14 is the mounting structure schematic diagram of table leg reversing arrangement and pushrod type lifting table leg in embodiment 3.
In figure, 3. pushrod type lifting table legs, 4. inside decorative panels, 5. fot screws, 7. outside decorative panels, 8. cabinets, 9.
Crossbeam, 10. fastening screws, 13. middle cross beams, 14. decorative panel connectors, 16. drive shafts, 17. motor box, 18. driving electricity
Machine, 19. card slots, 20. second worm gears, 21. metal plate plug-in units, 22. electric machine joints, 23. second worm screws, 24. screw rods, 25. first axles
It holds, 26. second bearings, 27. one-way dampers, 28. 3rd bearings, 29. cross tubes, 30. sheer poles, 31. vertical bars, 32. tiltedly
Support, 33. mounting plates, 34. axle sleeves, 35. shock-absorbing sleeves, 36. motor mounting plates.
Specific embodiment
The utility model is further described presently in connection with attached drawing.These attached drawings are simplified schematic diagram only to show
Meaning mode illustrates the basic structure of the utility model, therefore it only shows composition related with the utility model.
Embodiment 1
A kind of lifting table leg with worm-and-wheel commutator as shown in Figs. 1-3, including in lifting pipe and lifting pipe
Push rod, top of lifting tube be embedded with worm-and-wheel commutator, worm-and-wheel commutator output end driving lifting pipe in
The lifting of push rod, worm-and-wheel commutator include cabinet 8, intermeshing second worm gear 20 inside cabinet 8 and
The axis of two worm screws 23, the axis of the second worm screw 23 and the second worm gear 20 is in vertical state；Second worm screw 23 is used to drive with outside
Dynamic device connection, the screw rod of the second worm gear 20 and push rod are coaxially connected.
There is threaded hole on the cabinet 8 of worm-and-wheel commutator, the cabinet of lifting pipe and worm-and-wheel commutator it
Between be bolted.
Second worm gear 20 has through-hole, and coaxially connected, screw rod and the second turbine are realized in the screw rod inserting of push rod in through-holes
Pass through spline drived between 20.
Cabinet 2 is Hafu-type, is divided into symmetrical two parts, and link together by fastening screw 10；Cabinet 8 is square
Shape cabinet, lifting pipe are rectangular tube.
The two sides of second worm screw 23 are respectively provided with a first bearing 25；The two sides of second worm gear 20 are respectively provided with second axis
Hold 26.First bearing 25 uses deep groove ball bearing using sliding support bearing, second bearing 26.
Common, lifting pipe includes the outer pipe, the pipe and the inner pipe of expansion fit, and the outer tube of lifting pipe is equipped with decorative panel company
Fitting 14.
Electricity as shown in Figure 4-8 drives lifting type table pushing device, spreads to connection combination beam by two unilateral tables and is composed, often
A unilateral side table is pushed away to be driven by single motor, so that the lifting table leg synchronization lifting at both ends.Unilateral table is pushed away including two push-down liters
Table leg 3 and synchronous drive device drop, and two pushrod type lifting table legs 3 divide column front and rear sides, and are driven by synchronous drive device
Two 3 synchronization liftings of pushrod type lifting table leg；Two pushrod type lifting table legs 3 are connected as the table of an entirety by connecting component
Leg frame.
Synchronous drive device includes driving motor 18 and synchronous transmission device, and driving motor 18 is located at two pushrod type liftings
Between table leg 3, synchronous transmission device transmits the driving force of driving motor 18 by drive shaft, and the driving of driving motor 18 is synchronous to be passed
The drive shaft 16 of dynamic device rotates, and the drive shaft 16 of rotation drives two pushrod type lifting table legs 3.
Synchronous transmission device further includes motor reversing device and table leg reversing arrangement, and table leg reversing arrangement is exactly above-mentioned is embedded
In the worm-and-wheel commutator of top of lifting tube, table leg reversing arrangement is mounted on the top of pushrod type lifting table leg 3, and table leg changes
It is gone up and down to the output end driving push rod formula of device lifting table leg 3, the input terminal of driving motor 18 output end and motor reversing device
Connection, motor reversing device have former and later two output ends, former and later two output ends of motor reversing device pass through drive shaft
16 connect the input terminal of former and later two table leg reversing arrangements simultaneously.
Motor reversing device and table leg reversing arrangement are all Worm-gear type commutation, by adjusting motor reversing device and table
The speed ratio of leg reversing arrangement makes motor reversing device and table leg reversing arrangement slow down while commutation；Drive shaft with
The lifting direction of pushrod type lifting table leg is vertical, and motor reversing device and table leg reversing arrangement are vertically commutated.Drive shaft
16 be hexagonal rod, and drive shaft 16 is connected by the positive six sides through-hole of axial direction of the second worm screw 23 with the second worm screw 23.
The connecting component of pushrod type lifting table leg 3 is crossbeam, is connected as between two pushrod type lifting table legs 3 by crossbeam
One entirety；Crossbeam includes crossbeam 9, and pushrod type lifting table leg 3 includes the push rod in lifting pipe and lifting pipe, and lifting pipe includes stretching
Contract the outer tube cooperated and inner tube, the top connection of the outer tube at the both ends and lifting pipe of crossbeam 9.
The external of this table pushing device covers decorative panel, and decorative panel includes inside decorative panel 4 and outside decorative panel 7, inside dress
Plaque 4 and outside decorative panel 7 are installed by decorative panel connector 14 is covered on 3 two sides of pushrod type lifting table leg, decorative panel connection
Part 14 is installed on the outer tube of lifting pipe, and the outer tube of lifting pipe is equipped with the peace for preventing inside decorative panel 4 and outside decorative panel 7 from sliding
Loading board, mounting plate are located at 14 lower section of decorative panel connector.
Crossbeam further includes the middle cross beam 13 for driving the table pushing device stability of lift desk for improving electricity, middle cross
The top of the outer tube at the both ends and lifting pipe of beam 13 connects.
Cabinet 8 is rectangular box, and the outer tube of lifting pipe is also rectangular tube, and cabinet 8, which is fixed by screw, to be embedded in lifting pipe
Outer tube at the top of.
3 bottom of pushrod type lifting table leg be equipped with for lift frame of desk damping, the fot screw that supports and fixes
5。
It is mounted on metal plate plug-in unit 21 on inside decorative panel 4 and outside decorative panel 7, is opened up on decorative panel connector 14 useful
In the mounting hole of insertion metal plate plug-in unit 21, mounting hole includes the small mounting hole and big mounting hole of connection, and small mounting hole is located at big peace
It fills above hole.
The external of this table pushing device covers decorative panel, and the motor box of covering driving motor 18 is equipped on inside decorative panel 4
17,17 inner cavity of motor box is equipped with the electric machine joint 22 connecting with driving motor 18.17 two sides of motor box, which offer, to be caught in
The card slot 19 of inside decorative panel 4,17 inner cavity of motor box are equipped with the electric machine joint 22 connecting with driving motor 18.
A kind of electricity drive lift desk, the table frame and table top of lift desk are driven including above-mentioned electricity, and table top is mounted on
In table frame.
Lifting process are as follows: driving motor 18 works, worm gear and worm speed-down commutation in decelerating through motor reversing arrangement, so that
The drive shaft 16 connecting with worm gear rotates；When drive shaft 16 rotates, since drive shaft 16 and table leg deceleration commutate
23 spline of the second worm screw in device connects so that the second worm gear 20 rotates, to drive so that connecting with 20 spline of the second worm gear
Screw rod 24 rotate, screw rod 24 connect with the push rod in lifting pipe, to drive the lifting of pushrod type lifting table leg 3.
When inside decorative panel 4 or outside decorative panel 7 are installed, metal plate plug-in unit 21 is first inserted into big mounting hole, then on move to
Metal plate plug-in unit 21 when dismantling inside decorative panel 4 or outside decorative panel 7, only need to be displaced downwardly to big peace from small mounting hole by small mounting hole
Hole is filled, inside decorative panel 4 or outside decorative panel 7 can be removed.Small mounting hole is located at the top of big mounting hole, this structure be in order to
It when disassembly inside decorative panel 4 or outside decorative panel 7, does not need to remove desktop, convenient for operation.
Embodiment 2
Such as Fig. 1, Fig. 3 and a kind of lifting table leg with worm-and-wheel commutator shown in Fig. 10, including lifting pipe and
Push rod in lifting pipe, top of lifting tube are embedded with worm-and-wheel commutator, and the output end of worm-and-wheel commutator drives
The lifting of lifting pipe inner push-rod, worm-and-wheel commutator include cabinet 8, intermeshing second snail inside cabinet 8
The axis of wheel 20 and the second worm screw 23, the axis of the second worm screw 23 and the second worm gear 20 is in vertical state；Second worm screw 23 is used for
It is connect with external driver device, the screw rod of the second worm gear 20 and push rod is coaxially connected.
There is threaded hole on the cabinet 8 of worm-and-wheel commutator, the cabinet of lifting pipe and worm-and-wheel commutator it
Between be bolted.
Second worm gear 20 has splined hole, and the screw rod of push rod, which is inserted into splined hole, realizes coaxially connected, screw rod and second
Pass through spline drived between turbine 20.
Cabinet 2 is Hafu-type, is divided into symmetrical two parts, and link together by fastening screw 10；Cabinet 8 is square
Shape cabinet, lifting pipe are rectangular tube.
The two sides of second worm screw 23 are respectively provided with a first bearing 25；The two sides of second worm gear 20 are respectively provided with second axis
Hold 26；Second worm screw 23 is equipped with one-way damper 27 close to one end of external driver device, and the second worm screw 23 drives far from external
One end of dynamic device is equipped with thrust ball bearing with flat seat 28, and one-way damper 27 and thrust ball bearing with flat seat 28 are respectively positioned on first axle
Hold 25 insides.One-way damper 27 is specially the one-way clutch with damping function.First bearing 25 is using sliding support axis
It holds, the second bearing 26 close to external driver device uses deep groove ball bearing, and the second bearing 26 far from external driver device is adopted
With sliding support bearing.
Common, lifting pipe includes the outer pipe, the pipe and the inner pipe of expansion fit, and the outer tube of lifting pipe is equipped with decorative panel company
Fitting 14.
Electricity as shown in figures 5-9 drives lifting type table pushing device, including two pushrod type lifting table legs 3 are filled with synchronous driving
It sets, two pushrod type lifting table legs 3 divide column front and rear sides, and drive two pushrod type lifting table legs 3 by synchronous drive device
Synchronization lifting；Two pushrod type lifting table legs 3 are connected as the table leg frame an of entirety by connecting component.
Synchronous drive device includes driving motor 18 and synchronous transmission device, and driving motor 18 is located at two pushrod type liftings
Between table leg 3, synchronous transmission device transmits the driving force of driving motor 18 by drive shaft, and the driving of driving motor 18 is synchronous to be passed
The drive shaft 16 of dynamic device rotates, and the drive shaft 16 of rotation drives two pushrod type lifting table legs 3.
Synchronous transmission device further includes motor reversing device and table leg reversing arrangement, and table leg reversing arrangement is exactly above-mentioned is embedded
In the worm-and-wheel commutator of top of lifting tube, table leg reversing arrangement is mounted on the top of pushrod type lifting table leg 3, and table leg changes
It is gone up and down to the output end driving push rod formula of device lifting table leg 3, the input terminal of driving motor 18 output end and motor reversing device
Connection, motor reversing device have former and later two output ends, former and later two output ends of motor reversing device pass through drive shaft
16 connect the input terminal of former and later two table leg reversing arrangements simultaneously.
Motor reversing device and table leg reversing arrangement are all Worm-gear type commutation, by adjusting motor reversing device and table
The speed ratio of leg reversing arrangement makes motor reversing device and table leg reversing arrangement slow down while commutation；Drive shaft with
The lifting direction of pushrod type lifting table leg is vertical, and motor reversing device and table leg reversing arrangement are vertically commutated.Drive shaft
16 be hexagonal rod, and drive shaft 16 is connected by the positive six sides through-hole of axial direction of the second worm screw 23 with the second worm screw 23.
Table leg reversing arrangement is that Worm-gear type commutates, intermeshing second including cabinet 8, inside cabinet 8
Worm gear 20 and the second worm screw 23；There is the shaft plug-in opening being drivingly connected with drive shaft 16, the second worm gear on second worm screw 23
There is the plug-in opening being drivingly connected with the input shaft of pushrod type lifting table leg 3 on 20.Drive shaft 16 is hexagonal rod, drive shaft
16 are connected by the positive six sides through-hole of axial direction of the second worm screw 23 with the second worm screw 23.
Table leg reversing arrangement includes cabinet 8, intermeshing second worm gear 20 inside cabinet 8 and the second worm screw
23；There is the shaft plug-in opening being drivingly connected with drive shaft 16 on second worm screw 23, have on the second worm gear 20 defeated with table leg
Enter the plug-in opening that end is drivingly connected；Second worm screw 23 is equipped with one-way damper 27, the second snail close to one end of shaft plug-in opening
Bar 23 is equipped with 3rd bearing 28 far from one end of shaft plug-in opening.
Cabinet 8 is Hafu-type, is divided into two parts, and link together by fastening screw 10, and the second worm screw 23
The axis of axis and the second worm gear 20 is in vertical state；Respectively there is a first bearing 25 in the two sides of the second worm screw 23；Second snail
Respectively there are a second bearing 26 in the two sides of wheel 20, and one-way damper 27 and 3rd bearing 28 are respectively positioned on 25 inside of first bearing, single
It is specially the one-way clutch with damping function to damper 27.The output shaft of table leg deceleration reversing arrangement is connected using spline,
First bearing 25 is using sliding support bearing, and the second bearing 26 close to table leg input terminal uses deep groove ball bearing, far from table leg
The second bearing 26 of input terminal is using sliding support bearing；Axial force, 23 He of the second worm screw are generated since the second worm screw 23 rotates
3rd bearing 28 uses thrust ball bearing with flat seat, and thrust ball bearing with flat seat can reduce between the second worm screw 23 and first bearing 25
Frictional force, further strengthen the smooth rotation of the second worm screw 23.It is provided with one-way damper 27, was being risen so that table pushes away
It is more smoothly in journey, at the same when table push to bear weight when, one-way damper 27 can make table push away during decline by
Damping action and slowly decline, keep table frame stablize, avoid table from pushing away and descend rapid decrease due to gravity so that table pushes away generation
Shake.
Pushrod type lifting table leg 3 include lifting pipe and lifting pipe in push rod, lifting pipe include expansion fit outer tube and
Inner tube, table leg reversing arrangement are inlaid in the interior intracavitary of the top of lifting pipe.
The connecting component of pushrod type lifting table leg 3 is frame, is connected as between two pushrod type lifting table legs 3 by frame
One entirety；Frame includes cross tube 29, sheer pole 30 and the vertical bar 31 for connecting cross tube 29 and sheer pole 30,
Cross tube 29, sheer pole 30 and the integrally welded structure of vertical bar 31；Pushrod type lifting table leg 3 includes in lifting pipe and lifting pipe
Push rod, lifting pipe include the outer tube and inner tube of expansion fit, and the top of the outer tube at the both ends and lifting pipe of cross tube 29 connects, under
The bottom of the outer tube of 30 both ends of cross bar and lifting pipe connects.Cross tube 29 is hollow structure, and drive shaft 16 is built in cross tube
29, driving motor 18 is fixedly mounted on cross tube 29 by motor mounting plate.In order to save the space that table pushes away, driving motor 18
It is obliquely installed.Cross tube 29 is equipped with the resigning fluting being obliquely installed convenient for driving motor 18, and motor reversing device, which is embedded, to be allowed
In the fluting of position.
The external of this table pushing device covers decorative panel, and decorative panel includes inside decorative panel 4 and outside decorative panel 7, inside dress
Plaque 4 and outside decorative panel 7 are installed by decorative panel connector 14 is covered on 3 two sides of pushrod type lifting table leg, decorative panel connection
Part 14 is installed on the outer tube of lifting pipe, and the outer tube of lifting pipe is equipped with the peace for preventing inside decorative panel 4 and outside decorative panel 7 from sliding
Loading board, mounting plate are located at 14 lower section of decorative panel connector.
Cabinet 8 is rectangular box, and the outer tube of lifting pipe is also rectangular tube, and cabinet 8, which is fixed by screw, to be embedded in lifting pipe
Outer tube at the top of.
3 bottom of pushrod type lifting table leg be equipped with for lift frame of desk damping, the fot screw that supports and fixes
5。
It is mounted on metal plate plug-in unit 21 on inside decorative panel 4 and outside decorative panel 7, is opened up on decorative panel connector 14 useful
In the mounting hole of insertion metal plate plug-in unit 21, mounting hole includes the small mounting hole and big mounting hole of connection, and small mounting hole is located at big peace
It fills above hole.
The external of this table pushing device covers decorative panel, and the motor box of covering driving motor 18 is equipped on inside decorative panel 4
17,17 inner cavity of motor box is equipped with the electric machine joint 22 connecting with driving motor 18.17 two sides of motor box, which offer, to be caught in
The card slot 19 of inside decorative panel 4,17 inner cavity of motor box are equipped with the electric machine joint 22 connecting with driving motor 18.
Electricity as shown in figure 11 drives the table frame of lift desk, and including two above-mentioned table pushing devices, two tables push away dress
Set a point column left and right sides；Be equipped with attachment beam between at the top of two table pushing devices, the both ends of attachment beam respectively with two table pushing devices
Connection.
A kind of electricity drive lift desk, the table frame and table top of lift desk are driven including above-mentioned electricity, and table top is mounted on
In table frame.
Lifting process are as follows: driving motor 18 works, worm gear and worm speed-down commutation in decelerating through motor reversing arrangement, so that
The drive shaft 16 connecting with worm gear rotates；When drive shaft 16 rotates, since drive shaft 16 and table leg deceleration commutate
23 spline of the second worm screw in device connects so that the second worm gear 20 rotates, to drive so that connecting with 20 spline of the second worm gear
Screw rod 24 rotate, screw rod 24 connect with the push rod in lifting pipe, to drive the lifting of pushrod type lifting table leg 3.
When inside decorative panel 4 or outside decorative panel 7 are installed, metal plate plug-in unit 21 is first inserted into big mounting hole, then on move to
Small mounting hole, bolt, which is mounted on lower L plate 11, resists inside decorative panel 4 or outside decorative panel 7, prevents inside decorative panel 4 or outer
Side decorative panel 7 slides.When disassembly inside decorative panel 4 or outside decorative panel 7, metal plate plug-in unit 21 need to only be moved down from small mounting hole
To big mounting hole, inside decorative panel 4 or outside decorative panel 7 can be removed.Small mounting hole is located at the top of big mounting hole, this structure
It is in order to not need to remove desktop when disassembly inside decorative panel 4 or outside decorative panel 7, convenient for operation.
Embodiment 3
As shown in figs. 12-14, table leg reversing arrangement is exactly the worm-and-wheel commutator for being embedded at top of lifting tube, is implemented
3 difference from Example 2 of example is specific as follows:
(1), table leg reversing arrangement includes cabinet 8, intermeshing second worm gear 20 inside cabinet 8 and the second snail
Bar 23；There is the shaft plug-in opening that is drivingly connected with drive shaft 16 on second worm screw 23, on the second worm gear 20 with
The plug-in opening that table leg input terminal is drivingly connected；Second worm screw 23 is equipped with one-way damper 27 close to one end of shaft plug-in opening,
Second worm screw 23 is equipped with 3rd bearing 28 far from one end of shaft plug-in opening；Second worm gear 20 uses 11 gears, the second snail
Bar 23 uses 4 worm screws, and reduction ratio 11:4, this structure reduction ratio is small, and lead is big, transmission efficiency height and stable drive；
(2), 3 top of pushrod type lifting table leg is equipped with the table leg cover board that table leg reversing arrangement is fixedly mounted, table leg cover board
On offer table leg reversing arrangement mounting hole, axle sleeve 34 is equipped in table leg reversing arrangement mounting hole, axle sleeve 34 and table leg commutation fill
Set the shock-absorbing sleeve 35 for being equipped between mounting hole and reducing table leg reversing arrangement running noise；
(3), 3 top of pushrod type lifting table leg is equipped with the table leg cover board that table leg reversing arrangement is fixedly mounted, table leg cover board
On offer table leg reversing arrangement mounting hole, axle sleeve 34 is equipped in table leg reversing arrangement mounting hole, axle sleeve 34 and table leg commutation fill
Set the shock-absorbing sleeve 35 for being equipped between mounting hole and reducing table leg reversing arrangement running noise；
(4), the both ends of 30 hollow pipes of cross tube 29 and sheer pole, cross tube 29 and sheer pole 30 are built-in with mounting plate
33, pushrod type lifting table leg 3 is equipped with the diagonal brace 32 inside insertion cross tube 29 and 30 both ends of sheer pole, and diagonal brace 32 passes through spiral shell
Nail is fastenedly connected with diagonal brace mounting plate 33, and drive shaft 16 is arranged inside cross tube 29, is opened up on diagonal brace mounting plate 33 useful
In the through-hole that drive shaft 16 passes through；
(5), worm gear uses 32 gears in driving motor 18, and worm screw uses 2 worm screws, reduction ratio 16:1, in order to save
About table pushes away space, and driving motor 18 is in tilted layout；Cross tube 29 is equipped with the resigning being obliquely installed convenient for driving motor 18 simultaneously
Fluting, motor reversing device are embedded in fluting of stepping down, and fluting of stepping down is equipped with motor mounting plate 36, are opened on motor mounting plate 36
Equipped with motor installing hole, it is equipped with axle sleeve 34 in motor installing hole, being equipped between axle sleeve 34 and motor installing hole reduces motor commutation
The shock-absorbing sleeve 35 of device running noise.
Table pushing device solves this problem using a pair of of worm and gear to be driven in the present embodiment, and worm screw is big using bull
Lead, and when bearing using the bearing that can bear axial force to rise carrying worm screw axial force, this kind of drive efficiency ratio
Traditional Worm Wheel System is high, and noise is got well than common involute meshed gears is driven with vibration；This table pushes away dress
It rests against that the fixed mode screw of diagonal brace is more beautiful to be fastened on upper and lower cross bar both ends, realizes the dismountable function of table leg, it is convenient
Installation and maintenance, in addition drive shaft is hidden in hollow cross tube, the appearance made is more aesthetically pleasing.
Above embodiment is only to illustrate the technical ideas and features of the present invention, and its object is to allow be familiar with this skill
The personage of art can understand the content of the utility model and be implemented, and the protection model of the utility model can not be limited with this
It encloses, all equivalent change or modifications according to made by the spirit of the present invention essence should all cover the protection model in the utility model
In enclosing.
Claims (9)
1. a kind of lifting table leg with worm-and-wheel commutator, it is characterised in that: including pushing away in lifting pipe and lifting pipe
Bar, top of lifting tube are embedded with worm-and-wheel commutator, and the output end of worm-and-wheel commutator drives lifting pipe inner push-rod
Lifting,
The worm-and-wheel commutator include cabinet (8), be located at cabinet (8) internal intermeshing second worm gear (20) and
The axis of second worm screw (23), the axis of the second worm screw (23) and the second worm gear (20) is in vertical state；Second worm screw
(23) it is connect with external driver device, the second worm gear (20) and the screw rod of push rod are coaxially connected.
2. the lifting table leg according to claim 1 with worm-and-wheel commutator, it is characterised in that: the worm screw
There is threaded hole on the cabinet (8) of worm-gear type commutator, pass through bolt between lifting pipe and the cabinet of worm-and-wheel commutator
It is fixed.
3. the lifting table leg according to claim 1 or 2 with worm-and-wheel commutator, it is characterised in that: described
Second worm gear (20) has a through-hole, the screw rod inserting of push rod realize in through-holes it is coaxially connected, screw rod and the second worm gear (20) it
Between connect transmission.
4. the lifting table leg according to claim 1 or 2 with worm-and-wheel commutator, it is characterised in that: described
Cabinet (8) is Hafu-type, is divided into two parts, and link together by fastening screw (10).
5. the lifting table leg according to claim 1 with worm-and-wheel commutator, it is characterised in that: described second
The two sides of worm screw (23) are respectively provided with a first bearing (25)；The two sides of second worm gear (20) are respectively provided with a second bearing
(26)。
6. the lifting table leg according to claim 1 with worm-and-wheel commutator, it is characterised in that: described second
The two sides of worm screw (23) are respectively provided with a first bearing (25)；The two sides of second worm gear (20) are respectively provided with a second bearing
(26)；Second worm screw (23) is equipped with one-way damper (27) close to one end of external driver device, and the second worm screw (23) is separate
One end of external driver device is equipped with thrust ball bearing with flat seat (28), one-way damper (27) and thrust ball bearing with flat seat (28)
It is respectively positioned on the inside of first bearing (25).
7. the lifting table leg according to claim 1 with worm-and-wheel commutator, it is characterised in that: described second
Worm gear (20) and the second worm screw (23) are a pair of of reduction ratio less than 3 and the worm and gear meshing transmission structure of number of threads >=4.
8. the lifting table leg according to claim 1 with worm-and-wheel commutator, it is characterised in that: the lifting
Pipe includes the outer tube of expansion fit and the outer pipe, the pipe and the inner pipe of inner tube or expansion fit；The outer tube of lifting pipe is equipped with dress
Plaque connector (14).
9. the lifting table leg according to claim 1 with worm-and-wheel commutator, it is characterised in that: the lifting
Tube top end is equipped with the table leg cover board that worm-and-wheel commutator is fixedly mounted, and offers on table leg cover board and changes worm-and-wheel
The worm-and-wheel commutator mounting hole on table leg cover board is fixed by screws in device, in worm-and-wheel commutator mounting hole
Being equipped with equipped with axle sleeve (34), between axle sleeve (34) and worm-and-wheel commutator mounting hole reduces the operating of worm-and-wheel commutator
The shock-absorbing sleeve (35) of noise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820944722.6U CN209073665U (en) | 2018-06-15 | 2018-06-15 | A kind of lifting table leg with worm-and-wheel commutator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820944722.6U CN209073665U (en) | 2018-06-15 | 2018-06-15 | A kind of lifting table leg with worm-and-wheel commutator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209073665U true CN209073665U (en) | 2019-07-09 |
Family
ID=67113096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820944722.6U Active CN209073665U (en) | 2018-06-15 | 2018-06-15 | A kind of lifting table leg with worm-and-wheel commutator |
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| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110547593A (en) * | 2019-10-11 | 2019-12-10 | 绍兴源晔科技有限公司 | worm and gear type automatic lifting learning table |
| CN113443408A (en) * | 2021-07-20 | 2021-09-28 | 三阳纺织有限公司 | Winding conveying device |
| CN113633121A (en) * | 2021-07-22 | 2021-11-12 | 永艺家具股份有限公司 | Sitting tool unit and sitting tool |
| CN114343327A (en) * | 2022-03-21 | 2022-04-15 | 常州市凯迪电器股份有限公司 | Electric lifting upright post, lifting type rostrum, electric lifting table and wiring method |
-
2018
- 2018-06-15 CN CN201820944722.6U patent/CN209073665U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110547593A (en) * | 2019-10-11 | 2019-12-10 | 绍兴源晔科技有限公司 | worm and gear type automatic lifting learning table |
| CN113443408A (en) * | 2021-07-20 | 2021-09-28 | 三阳纺织有限公司 | Winding conveying device |
| CN113633121A (en) * | 2021-07-22 | 2021-11-12 | 永艺家具股份有限公司 | Sitting tool unit and sitting tool |
| CN114343327A (en) * | 2022-03-21 | 2022-04-15 | 常州市凯迪电器股份有限公司 | Electric lifting upright post, lifting type rostrum, electric lifting table and wiring method |
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