CN208550380U - Lifting regulating rod - Google Patents
Lifting regulating rod Download PDFInfo
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- CN208550380U CN208550380U CN201721027431.2U CN201721027431U CN208550380U CN 208550380 U CN208550380 U CN 208550380U CN 201721027431 U CN201721027431 U CN 201721027431U CN 208550380 U CN208550380 U CN 208550380U
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- screw rod
- lifting regulating
- transmission shaft
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Abstract
The utility model provides a kind of lifting regulating rod, including tubular body, screw component and transmission component.There is cavity inside tubular body.Screw component includes screw rod and first gear, screw rod has a first end and a second end, and the first end of screw rod is inserted in the intracorporal cavity of tubulose, and screw rod is connected with the inner thread of tubular body, the second end of screw rod extends except tubular body, and first gear is socketed in the second end of screw rod.Transmission component includes first gear case, second gear case, transmission shaft and bevel type gear, first gear case and second gear case snugly connect, so that forming containing cavities between first gear case and second gear case, one end of transmission shaft is fixed on first gear case, the other end of transmission shaft is fixed on second gear case, and bevel type gear is socketed in transmission shaft, and bevel type gear is located in containing cavities, the second end of screw rod is extend into containing cavities, first gear and bevel type gear engagement.
Description
Technical field
The utility model relates to a kind of lifting regulating rod more particularly to a kind of lifting regulating rods suitable for study table.
Background technique
As life is more and more convenient, our common study table, Children's desks and chairs, office desk and chair, dining table and chair, stooles etc. are used
The function of tool is more and more comprehensively and various.By taking child learning desk as an example, today's society people are to the study education of child and health
Problem is increasingly paid close attention to and is paid attention to, and study table industry flourishes, for child of an easy to use, comfortable study table
It practises education and health is extremely important.Study table generally can freely adjust height according to the height difference of user, to use
Person offers convenience.But the height adjustment mechanism of existing study table is more complicated, is not easy to active force transmitting, is also easy to occur
Tooth phenomenon is looked into the distance, causes study table height adjustment unhappy.Also, since structure limits, the transmission mechanism of study table is not easy to pacify
Dress.
In addition, in the prior art, the process that people adjust study table height often generates bigger noise, this is main
It is that resistance is larger during the motion for the elevating screw of study table, larger frictional force is generated between elevating screw and table leg inner wall and is led
It causes.
Utility model content
The purpose of the utility model is to provide a kind of lifting regulating rod, apparatus such as study table in the prior art are solved
Height adjustment mechanism is complicated, and adjusting has some setbacks, is not easy to install, loud noise is led to the problem of in adjustment process.
To solve the above problems, the utility model provides a kind of lifting regulating rod, including tubular body, screw component and biography
Dynamic component.There is cavity inside tubular body.Screw component includes screw rod and first gear, and screw rod has a first end and a second end,
The first end of screw rod is inserted in the intracorporal cavity of tubulose, and screw rod is connected with the inner thread of tubular body, and the second end of screw rod is prolonged
It stretches in except tubular body, first gear is socketed in the second end of screw rod.Transmission component include first gear case, second gear case,
Transmission shaft and bevel type gear, first gear case and second gear case snugly connect, so that in first gear case and second
Containing cavities are formed between gear-box, one end of transmission shaft is fixed on first gear case, and the other end of transmission shaft is fixed on the second tooth
Roller box, bevel type gear be socketed in transmission shaft and be located at containing cavities in, the second end of screw rod is extend into containing cavities, first gear and
Bevel type gear engagement.
According to an embodiment of the present invention, tubular body includes square tube and holding nut, and cavity is formed in square tube, support
Nut is nested in square tube, and screw rod and holding nut are threadedly coupled.
According to an embodiment of the present invention, screw component includes two first bearings, and the inner wall of first gear case has
The inner wall of first arc groove, second gear case has the second arc groove, and it is recessed that two first bearings are restricted to the first arc
Between slot and the second arc groove, and two first bearings are socketed on screw rod superimposedly to support first gear.
According to an embodiment of the present invention, the inner wall of first gear case and the inner wall of second gear case are respectively provided with reinforcement
Muscle.
According to an embodiment of the present invention, transmission component further includes four bolts and four nuts, first gear case and
Second gear case is linked together by four bolts and corresponding four nuts.
According to an embodiment of the present invention, bolt is 8.8 grade bolts.
According to an embodiment of the present invention, one end of transmission shaft is extended except first gear case, transmission shaft it is another
Extend except second gear case at end.
According to an embodiment of the present invention, lifting regulating rod includes two limited blocks, and limited block has limit hole, limit
Hole side has opening, and the first end of screw rod passes through the respective opening of two limited blocks respectively and snaps into respective limit hole,
The size for being sized to be slightly smaller than screw rod and snapping into limited block position of the opening of limited block, two limited blocks are respectively held against tubular body
Inner wall.
According to an embodiment of the present invention, the first end of screw rod has annular groove, and annular groove is around the outer of screw rod
Wall is formed, and annular groove has the first side wall and second sidewall, and the first side wall and second sidewall are opposite, and limited block has boss,
Two limited blocks are inverted mutually, so that the boss of a limited block resists the first side wall, the boss of another limited block resists
Two side walls.
According to an embodiment of the present invention, bevel type gear and transmission shaft are integrally formed.
Compared with prior art, the technical program has the advantage that
The cooperation transmission that the utility model passes through setting first gear case, second gear case, transmission shaft and bevel type gear
Come realize the opposed helical between screw rod and tubular body move, to adjust the height of the lifting regulating rod.Wherein umbellate form tooth
Wheel can be well matched with first gear, to be first gear by the conversion of motion of bevel type gear itself in the vertical direction
Power transmitting is realized in movement in the horizontal direction.It is such simple and compact for structure, convenient between bevel type gear and first gear
Transmission so that lifting regulating rod adjust it is smooth.Also, by first gear case and second gear case snugly connection type come
Containing cavities are formed, so that transmission shaft and bevel type gear are fixed in containing cavities, entire transmission component are easily installed in this way and incite somebody to action
Transmission component and screw component engagement.It is first that the both ends of the drive shaft and screw component for being socketed with bevel type gear is corresponding during installation
Ground fixes, then first gear case and second gear case are merged from two sides and connected, and transmission component itself internal zero can be realized
Installation between the installation and screw component and transmission component of part.The lifting regulating rod installation and removal are convenient.
The utility model is nested together by holding nut and square tube, can be with the cavity of grafting screw rod with formation, and is led to
The characteristics of crossing holding nut attribute realizes the threaded connection of screw rod and tubular body, so that screw rod is able to through holding nut itself
Be threaded into square tube or screwed out from square tube, to realize adjusting height, have internal thread pipeline compared to production,
The combination of square tube and holding nut is more convenient for fabricating.
The utility model supports first gear by two first bearings of setting, and transmission component is then supported to be especially the
The pressure that one gear-box and second gear case are subject to, two first bearings, which are arranged, can reduce the wind that first bearing itself is subject to crushing
Danger, protects the service life of first bearing.In addition, by being correspondingly arranged in first gear case and the respective inner wall of second gear case
One arc groove and the second arc groove, to match the shape of two first bearings, so that two first bearings are restricted to the
Between one arc groove and the second arc groove, the first arc groove and the second arc groove can engage two first axles just
The outer rim held, firmly to fix two first bearings.
The utility model is by being respectively set reinforcing rib in the inner wall of first gear case and the inner wall of second gear case, to increase
The mechanical strength of strong first gear case and second gear case increases holding for first gear case in a state of use and second gear case
Beijing South Maxpower Technology Co. Ltd's power avoids first gear case and second gear case case stress deformation.
The utility model connects first gear case and second gear case by four 8.8 grades of setting of high-strength bolt,
Guarantee that first gear case and second gear case are not easy to separate to two sides to scatter, fasten great efforts, prevents first gear case and the
Two gear-boxes deform under stress effect.
The both ends of transmission shaft by being respectively set to extend except first gear case and second gear by the utility model
Except case, user's operation controls transmission shaft when in order to use.For example, when wind is installed in transmission shaft to operate rising-falling tone
When pole, the both ends of transmission shaft extend the outside of first gear case and second gear case, it is ensured that transmission shaft and wind
Concentricity, be conducive to user's operation.
The utility model avoids the second end of screw rod in use against tubular body by two limited blocks of setting
Inner wall so that screw rod still be able under stress in tubular body cavity center, the lifting of such screw rod
More smoothly.In addition, can reduce the frictional force in screw rod lifting process between tubular body inner wall by two limited blocks, drop
Low screw rod goes up and down resistance, and lifting regulating rod is avoided to generate loud noise in use.
The utility model resists the first side wall and second sidewall of the annular groove positioned at screw rod by the boss of limited block,
So that limited block closely snaps into the annular groove of screw rod, guarantee that clamping securely, avoids limited block between limited block and screw rod
It falls off from screw rod.
Detailed description of the invention
Fig. 1 is the structural exploded view of the lifting regulating rod of the utility model embodiment；
Fig. 2 is the schematic perspective view figure of the first gear case of the lifting regulating rod of the utility model embodiment；
Fig. 3 is the side view of the lifting regulating rod of the utility model embodiment；
Fig. 4 is the front view of the lifting regulating rod of the utility model embodiment；
Fig. 5 is the cross-sectional view of the lifting regulating rod of the utility model embodiment；
Fig. 6 is the partial structural diagram of the lifting regulating rod of the utility model embodiment, illustrates the structure of limited block
And the connection type between limited block and screw rod.
Specific embodiment
It is described below and is served only for disclosing the utility model so that those skilled in the art can implement the utility model.With
Embodiment in lower description is only used as illustrating, it may occur to persons skilled in the art that other obvious deformations.It is retouched following
The basic principle of the utility model defined in stating can be applied to other embodiments, deformation scheme, improvement project, equivalent program
And other are without departing from other schemes of the spirit and scope of the utility model.
Referring to figs. 1 to shown in Fig. 6, the utility model provides a kind of lifting regulating rod, and lifting regulating rod can in short transverse
Lift adjustment, to change the height of lifting regulating rod.The lifting regulating rod is suitable for study table, so that user can be according to reality
Using the height of lifting regulating rod described in different voluntarily the flexible modulations of needs or height, then by the height tune of study table
It saves to a comfortable reasonable height.In this way, the study table including the lifting regulating rod can be suitble to different heights, not the same year
The crowds such as children, the student of age section use.But the application of the lifting regulating rod is not limited to study table, lifting regulating rod
It can be applied in the apparatus such as office desk and chair, dining table and chair, stool or other suitable equipment, to adjust the height of these apparatus or equipment
Degree.The lifting regulating rod includes tubular body 10, screw component 20 and transmission component 30.
Tubular body 10 is in elongated tubular, has cavity 101 inside tubular body 10, cavity 101 is for storing screw component 20.Pipe
At least part inner wall of shape body 10 has screw thread.
In this present embodiment, tubular body 10 is square, i.e., the cross section of tubular body 10 is rectangular.In other embodiments,
Tubular body 10 is circle or other shapes.
In this present embodiment, the top of tubular body 10 has screw thread.In other embodiments, in the whole of tubular body 10
Wall has screw thread.
Tubular body 10 includes square tube 11 and holding nut 12.Cavity 101 is formed in square tube 11, and holding nut 12 is nested in
The top of square tube 11.The inside of holding nut 12 is connected to cavity 101, and 12 inner wall of holding nut has the screw thread.Support spiral shell
Mother 12 is also square, so that holding nut 12 is able to be inserted in the top of square tube 11 and fits closely 11 inner wall of square tube.
It may occur to persons skilled in the art that top inner wall, which also can be directly used, in tubular body 10 has threaded pipe
Road.In the present embodiment, the tubulose is formed in such a way that inner wall has threaded holding nut 12 and square tube 11 is nested
Body 10 can avoid the inconvenience of process pipeline internal screw thread in order to manufacture processing.
One end of screw component 20 is inserted in the cavity 101 in tubular body 10, and the other end of screw component 20 is exposed to
Except the cavity 101 of tubular body 10.That is, the overwhelming majority of screw component 20 is socketed in the inside of tubular body 10, screw rod
The small part of component 20 extends except cavity 101.Screw component 20 passes through 10 spiral shell of screw thread and tubular body of 10 inner wall of tubular body
Line connection, so that screw component 20 can be rotated relative to tubular body 10.In this way, screw component 20 can be screwed in by operation
Or tubular body 10 is screwed out, realize the height for changing and adjusting the lifting regulating rod.Screw component 20 includes screw rod 21 and the
One gear 22.
Screw rod 21 has first end 211 and second end 212, and the first end 211 of screw rod 21 is inserted in square tube 11, screw rod
21 second end 212 extends except cavity 101.Screw rod 21 and holding nut 12 are threadedly coupled, that is to say, that screw rod 21 passes through
Holding nut 12 to be inserted in the cavity 101 of square tube 11, by by screw rod 21 in 12 internal rotating of holding nut come realize by
Screw rod 21 is threaded in or out from square tube 11.
The outer wall of screw rod 21 also has annular groove 213, and annular groove 213 is located at the first end 211 of screw rod 21, annular
Groove 213 is to surround 21 outer wall of screw rod to be formed, so that diameter of the screw rod 21 in 213 position of annular groove is less than screw rod 21 at other
The diameter at position.Annular groove 213 has the first side wall 2131 and second sidewall 2132, the first side wall 2131 and second sidewall
2132 is opposite.In actual application, annular groove 213 is by internally milling out the material of screw rod 21 itself from outer wall
It forms.
First gear 22 is socketed in the second end 212 of screw rod 21, that is to say, that based on direction shown in attached drawing, first gear
22 are located at except the cavity 101 of square tube 11, and first gear 22 is located at 10 top of tubular body.In practical applications, the of screw rod 21
The end face at two ends 212 has connecting hole, and second end 212 passes through the center of first gear 22, is connected to second end 212 by one
The screw of connecting hole realize the second end 212 that first gear 22 is fixed on to screw rod 21.Optionally, first gear 22 uses
Powder metallurgical technique is made, so that first gear 22 intensity is high, wearability is good, reduces first gear 22 in use
It is smooth to guarantee that the lifting regulating rod is adjusted for abrasion loss.
Further, screw component 20 further includes two first bearings 23, and two first bearings 23 are socketed on screw rod 21
Second end 212, two first bearings 23 are superimposed together in the height direction.Two first bearings 23 are located at first gear 22
The same side, two first bearings 23 play the role of support first gear 22.To the lifting regulating rod use and
When stress, two first bearings 23 can bear first gear 22 and the entire transmission device 30 is subject to pressure.
That is, two first bearings 23 are superimposedly socketed on screw rod 21 and two first bearings 23 support first gear 22.
Based on direction shown in attached drawing, transmission component 30 is located at the top of screw component 20, and transmission component 30 is engaged in screw rod
21 second end 212.Transmission component 30 is for transmitting torque to screw component 20, so that screw rod 21 is screwed in or screwed out in pipe
Cavity 101 in shape body 10, to adjust the height of the lifting regulating rod.Transmission component 30 includes first gear case 31, the
Two gear-boxes 32, transmission shaft 33 and bevel type gear 34.
As shown in Figure 1 and Figure 5, first gear case 31 and second gear case 32 are rectangular shell.First gear case 31
Structure and second gear case 32 structure it is corresponding, the side of 31 side of first gear case and second gear case 32 snugly connects
It is connected together, to form a containing cavities 301 between first gear case 31 and second gear case 32.The bottom of containing cavities 301
Portion has opening 3011, and in other words, the opening 3011 of containing cavities 301 is located at the bottom of first gear 31 and second gear 32.
One end of screw component 20 is protruded into containing cavities 301.Specifically, the opening from 301 bottom of containing cavities of second end 212 of screw rod 21
Mouthfuls 3011 protrude into containing cavities 301, and are located at the first gear 22 of second end 212 and two first bearings 23 are respectively positioned on receipts
It receives in chamber 301.The bottom of first gear case 31 and the bottom of second gear case 32 clamp two first bearings 23, i.e. two axis
23 are held to be connected between first gear case 31 and second gear case 32.In this way, screw component 20 and transmission group
Part 30 is bonded together, and screw component 20 cannot be detached from from containing cavities 30, that is to say, that screw component 20 cannot and pass
Dynamic component 30 is detached from.
Particularly, first gear case 31 and second gear case 32 are bolted.Transmission component 30 further includes at least two
A bolt 35 and at least two nuts 36, at least two bolt 35 and at least two nut 36 are correspondingly for connecting
Connect first gear case 31 and second gear case 32.Specifically, at least two bolt 35 is set to first gear case 31, and second
Gear-box 32 correspondingly has at least two through-holes 321, and at least two bolt 35 is each passed through first gear case 31 and divides
At least two through-hole 321 of second gear case 32 is not passed through accordingly, at least two nut 36 is accordingly socketed on
At least two bolt 35, and at least two nut 36 is respectively correspondingly trapped at least two through-hole 321.
In this way, first gear case 31 and second gear case 32 are snugly linked together.It is understood that bolt 35
Quantity it is corresponding with the quantity of the quantity of nut 36 and through-hole 321 respectively.
In this present embodiment, the quantity of bolt 35 is four, and four bolts 35, which respectively correspond, is set to first gear case 31
Four corner locations；The quantity of through-hole 321 is four, and four through-holes 321 are respectively correspondingly set to second gear case 32
Four corner locations；The quantity of nut 36 is four, and four bolts 35 are each passed through first gear case 31 and second gear case 32,
Four nuts 36 are respectively correspondingly set to second gear case 32, and four nuts 36 respectively correspondingly fix four bolts
35.In other words, both first gear case 31 and second gear case 32 pass through four bolts 35 and accordingly four nuts 36 connect
It is connected together.
Optionally, bolt 35 is 8.8 grade bolts.Wherein " 8.8 grades " refer to defines according in national standard GB/T 5782-2016
8.8 grade standard of bolt.That is, bolt 35 is 8.8 grades of high-strength bolt.The fastening great efforts of high-strength bolt,
It is unlikely to deform, can fully ensure that and be connected firmly between first gear case 31 and second gear case 32.
In this present embodiment, first gear case 31 and second gear case 32 are plastic casing, in this way, first gear case 31
It is relatively light with the weight of second gear case 32, thus the weight of entire lifting regulating rod is relatively light, to drop to the maximum extent
The whole table weight of low study table.Also, bolt 35 uses 8.8 grade high-strength bolts, fully ensures that the first gear case 31 of plastics
With the connectivity robustness of second gear case 32, prevent first gear case 31 and second gear case 32 under stress respectively to two
Side extends out deformation.
Particularly, the inner wall of 31 bottom of first gear case has the first arc groove 311,32 bottom of second gear case
Inner wall has the second arc groove 322, and the first arc groove 311 is connected to containing cavities 301 with the second arc groove 322.When
When first gear case 31 and second gear case 32 snugly link together, the first arc groove 311 and the second arc groove 322
It forms circular hole and the first arc groove 311 and the second arc groove 322 forms the opening 3011.Two first bearings 23
It is restricted between the first arc groove 311 and the second arc groove 322, and two first bearings 23 are superimposedly socketed on silk
Bar 21 is to support first gear 22.In this way, two first bearings 23 be connected to first gear case 31 and second gear case 32 it
Between.
As shown in Fig. 2, the inner wall of first gear case 31 and the inner wall of second gear case 32 are respectively provided with reinforcing rib 38.Pass through
Reinforcing rib 38 is set, the mechanical strength of first gear case 31 and second gear case 32 can be enhanced.
Transmission shaft 33 is located in containing cavities 301, and first gear case 31 is fixed in one end of transmission shaft 33, transmission shaft 33 it is another
Second gear case 32 is fixed in one end.Particularly, as shown in figure 5, one end of transmission shaft 33 extend first gear case 31 it
Outside, the other end of transmission shaft 33 extends except second gear case 32, rotates in order to operate and control transmission shaft 33.
Further, transmission shaft 33 is fixed on first gear case 31 and second gear case 32 by bearing.Transmission component 30
It further include two second bearings 37, two second bearings 37 are respectively correspondingly socketed in the both ends of transmission shaft 33.Two the second axis
It holds 37 and is respectively correspondingly fixed on first gear case 31 and second gear case 32, so that transmission shaft 33 is installed in first gear case
Between 31 and second gear case 32.Two second bearings 37 play the role of fixed support transmission shaft 33 and position-limiting action.If
The advantages of setting two second bearing 37 is: reducing the frictional force of 33 rotation process of transmission shaft, reduces transmission resistance, transmission shaft 33
Noise is small when rotation.
As shown in figure 5, bevel type gear 34 is located in containing cavities 301, bevel type gear 34 is socketed on transmission shaft 33, bevel type gear
34 and screw component 20 first gear 22 engage.Optionally, bevel type gear 34 is made of powder metallurgical technique, so that umbrella
34 intensity of type gear is high, wearability is good, reduces the abrasion loss of bevel type gear 34 in use, guarantees first gear 22 and umbrella
Type gear 34, which engages, well reduces the probability that slippage phenomenon occurs between first gear 34 and bevel type gear 34, so that the liter
Falling tone pole adjusts smooth.Optionally, bevel type gear 34 and transmission shaft 33 are integrally formed.
As shown in figure 5, the lifting regulating rod is in use, tubular body 10 is motionless always, and user first operates control
Transmission shaft 33 is around own axis, and as transmission shaft 33 is rotated in containing cavities 301, transmission shaft 33 drives bevel type gear 34
Rotation, so that bevel type gear 34 rotates on vertical plane.Bevel type gear 34 drives first gear 22 to rotate, due to first gear 22
Be locked with screw rod 21, first gear 22 force screw rod in tubular body 10 around own axis, so that screw rod 21 is along pipe
The cavity 101 of 10 inner wall of shape body being threaded into tubular body 10 is screwed out out of cavity 101 in tubular body 10.It can be with
Understand, user can correspondingly realize and screw rod is screwed in or revolved by selecting transmission shaft 33 clockwise or counterclockwise
For tubular body 10.When screw rod 21 screws in tubular body 10, the height of the entire lifting regulating rod is reduced；When screw rod 21 from
When screwing out in tubular body 10, the height of the entire lifting regulating rod is increased.
In actual application, for any end of transmission shaft 33 for installing wind, wind is connected to transmission shaft
33, user is by operation wind come so that transmission shaft 33 rotates, i.e., the described lifting regulating rod can pass through the side of manual operation
Formula realizes height adjustment.It is noted that one end of transmission shaft 33 is extended except first gear case 31, transmission shaft 33 it is another
The advantages of one end is extended except second gear case 32, is designed in this way is, convenient for wind is installed in transmission shaft 33, to make to go smoothly
The partial-length of the coincidence of rocking handle and transmission shaft 33 is enough long, to fully ensure that the concentricity of wind and transmission shaft 33.
It may occur to persons skilled in the art that transmission shaft 33 can connect motor or other driving devices also to drive
Transmission shaft 33 rotates, to realize the height adjustment of the lifting regulating rod.
It is noted that the lifting regulating rod plays support and learns when the lifting regulating rod is installed in study table
Practise the effect of the desktop of table, that is to say, that the lifting regulating rod is the component of load-bearing, first gear case 31, second gear case
32 and screw rod be under pressure in a state of use, therefore the second end of screw rod 21 setting two first bearings 23 can fill
Divide and bear weight, compared to a first bearing 23 is only arranged, two first bearings 23, which are arranged, can reduce first bearing 23
The risk itself being crushed guarantees the service life of first bearing 23.
Still further, the lifting regulating rod further includes two limited blocks 40, two confinement blocks 40 are in the height direction
Be superimposed together, two limited blocks 40 are socketed in the first end 211 of screw rod 21 and resist the inner wall of tubular body 10, it is specific and
Speech, two limited blocks 40 are socketed on the annular groove 213 of screw rod 21 and resist the inner wall namely two limited blocks 40 of square tube 11
In cavity 101.
As shown in fig. 6, limited block 40 is in square, the center of limited block 40 has limit hole 41, and limit hole 41 is through limit
The through-hole of position 40 short transverse of block, 41 side of limit hole have opening 411, and limited block 41 has in the side opposite with opening 411
The boss 42 that oriented short transverse extends.The position that screw rod 21 is located at annular groove 213 is caught in limited block 40 by opening 411
In limit hole 41, the size for being sized to be slightly smaller than screw rod 21 and snapping into 40 position of limited block of the opening 411 of limited block 40 is opened
The diameter dimension for being sized to be slightly smaller than screw rod 21 and being located at 213 position of annular groove of mouth 411, so that screw rod 21 can be firmly
It is sticked in limit hole 41 and is difficult to fall off from limit hole 41 naturally.Screw rod 21 only could under the action of applying external force
It is detached from from limit hole 41.Two limited blocks 40 are located at the two sides of screw rod 21, i.e. two limited blocks 41 are respectively from screw rod 21
Two sides be caught in annular groove 213.Direction based on the figure, two limited blocks 40 are inverted mutually in the height direction, with
So that the boss 42 of a limited block 40 resists the first side wall 2131 of annular groove 213, the boss 42 of another limited block 40
The second sidewall 2132 of annular groove 213 is resisted, so that two limited blocks 40 are firmly caught in annular groove 213, no
It is easy to fall off from screw rod 21.When screw component 20 is inserted into the cavity 101 in tubular body 10, limited block 40 resists square tube 11
Inner wall is nested in square tube 11 so that screw rod 21 is firm, guarantees that screw rod 21 and square tube 11 are located at same axis, is avoided described
The first end 211 of lifting regulating rod screw rod 21 under stress is resisted against the inner wall of square tube 11 and causes 21 lifting unit of screw rod suitable
Freely, and then the lifting regulating rod lift adjustment is caused to have some setbacks.
It should be noted that the short transverse of limited block 40 refers to the depth direction of the limit hole along limited block 40." two
A limited block 40 is inverted mutually in the height direction ", that is to say, that it is based on direction shown in fig. 6, one of limited block 40
Upward, the boss 42 of another limited block 40 is downward for boss 42.
Optionally, limited block 40 is made of acetal resin, since acetal resin material itself has lubricating action,
So as to reducing the frictional force between limited block 40 and the inner wall of square tube 11, resistance of the screw rod 21 in lifting process is reduced,
To reduce noise of lifting regulating rod during lift adjustment.
It will be understood by those skilled in the art that in the exposure of the utility model, term " longitudinal direction ", " transverse direction ", "upper",
The orientation of the instructions such as "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" or position are closed
System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore on
Stating term should not be understood as limiting the present invention.
It will be appreciated by those skilled in the art that foregoing description and the embodiments of the present invention shown in the drawings are only made
For citing, it is not intended to limit the utility model.The purpose of this utility model completely and effectively realizes.The function of the utility model
It can show and illustrate in embodiment with structural principle, without departing from the principle, the implementation of the utility model
Mode can have any deformation and modification.
Claims (10)
1. a kind of lifting regulating rod characterized by comprising
Tubular body, inside have cavity；
Screw component, including screw rod and first gear, the screw rod have a first end and a second end, and the first end is inserted in institute
State the cavity of tubular body, the screw rod and the tubular body are threadedly coupled, the second end extend the tubular body it
Outside, the first gear is socketed in the second end；
Transmission component, including first gear case, second gear case, transmission shaft and bevel type gear, the first gear case and institute
Second gear case is stated snugly to connect, so that containing cavities are formed between the first gear case and the second gear case,
One end of the transmission shaft is fixed on the first gear case, and the other end of the transmission shaft is fixed on the second gear case,
The bevel type gear is socketed in the transmission shaft and is located in the containing cavities, and the second end of the screw rod extend into described
In containing cavities, the first gear and bevel type gear engagement.
2. lifting regulating rod according to claim 1, which is characterized in that the tubular body includes square tube and holding nut,
The cavity is formed in the square tube, and the holding nut is nested in the square tube, the screw rod and the holding nut spiral shell
Line connection.
3. lifting regulating rod according to claim 1, which is characterized in that the screw component includes two first bearings,
The inner wall of the first gear case has the first arc groove, and the inner wall of the second gear case has the second arc groove, and two
A first bearing is restricted between first arc groove and second arc groove, and two described first
Bearing is socketed on the screw rod superimposedly to support the first gear.
4. lifting regulating rod according to claim 1, which is characterized in that the inner wall of the first gear case and described second
The inner wall of gear-box is respectively provided with reinforcing rib.
5. lifting regulating rod according to claim 1, which is characterized in that the transmission component further includes four bolts and four
A nut, the first gear case and the second gear case are connected by four bolts and corresponding four nuts
It is connected together.
6. lifting regulating rod according to claim 5, which is characterized in that the bolt is 8.8 grade bolts.
7. lifting regulating rod according to claim 1, which is characterized in that extend described first in one end of the transmission shaft
Except gear-box, the other end of the transmission shaft extends except the second gear case.
8. lifting regulating rod according to claim 1, which is characterized in that the lifting regulating rod includes two limited blocks,
The limited block has limit hole, and the limit hole side has opening, and the first end of the screw rod passes through two respectively
The respective opening of limited block snaps into the respective limit hole, and the size of the opening of the limited block is omited
Less than the size that the screw rod snaps into the limited block position, two limited blocks are respectively held against the interior of the tubular body
Wall.
9. lifting regulating rod according to claim 8, which is characterized in that the first end of the screw rod has annular recessed
Slot, the annular groove are formed around the outer wall of the screw rod, and the annular groove has the first side wall and second sidewall, described
The first side wall and the second sidewall are opposite, and the limited block has boss, and two limited blocks are inverted mutually, so that one
The boss of the limited block resists the first side wall, and the boss of another limited block resists described second side
Wall.
10. lifting regulating rod according to claim 1, which is characterized in that the bevel type gear and transmission shaft one
Molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721027431.2U CN208550380U (en) | 2017-08-16 | 2017-08-16 | Lifting regulating rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721027431.2U CN208550380U (en) | 2017-08-16 | 2017-08-16 | Lifting regulating rod |
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| Publication Number | Publication Date |
|---|---|
| CN208550380U true CN208550380U (en) | 2019-03-01 |
Family
ID=65444783
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721027431.2U Active CN208550380U (en) | 2017-08-16 | 2017-08-16 | Lifting regulating rod |
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| Country | Link |
|---|---|
| CN (1) | CN208550380U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111298358A (en) * | 2019-06-14 | 2020-06-19 | 谢昱顺 | Body-building horizontal bar |
-
2017
- 2017-08-16 CN CN201721027431.2U patent/CN208550380U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111298358A (en) * | 2019-06-14 | 2020-06-19 | 谢昱顺 | Body-building horizontal bar |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Hutong Ergonomics Technology Co., Ltd Assignor: HANGZHOU TOTGUARD TECHNOLOGY Co.,Ltd. Contract record no.: X2021330000311 Denomination of utility model: Lifting adjusting rod Granted publication date: 20190301 License type: Common License Record date: 20210924 |