CN208295470U - A kind of adjustable tripod of gear type - Google Patents
A kind of adjustable tripod of gear type Download PDFInfo
- Publication number
- CN208295470U CN208295470U CN201820570036.7U CN201820570036U CN208295470U CN 208295470 U CN208295470 U CN 208295470U CN 201820570036 U CN201820570036 U CN 201820570036U CN 208295470 U CN208295470 U CN 208295470U
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- CN
- China
- Prior art keywords
- gear
- lower bracket
- chuck
- bracket
- tripod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000003028 elevating effect Effects 0.000 claims abstract description 23
- 210000002683 foot Anatomy 0.000 claims abstract description 23
- 210000000078 claw Anatomy 0.000 claims abstract description 22
- 238000009434 installation Methods 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 235000005121 Sorbus torminalis Nutrition 0.000 description 1
- 244000152100 Sorbus torminalis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Landscapes
- Tables And Desks Characterized By Structural Shape (AREA)
Abstract
The utility model discloses a kind of gear types, and tripod is adjusted, including instrument base and three elevating feets being connected with instrument base, the elevating feet includes the upper bracket and lower bracket engaged by gear & rack structure, gear shaft is installed in lower bracket by bearing, the crank fixed with gear shaft is equipped on the outside of lower bracket, the locking device for being capable of fixing the two relative position is additionally provided between upper bracket and lower bracket, it specifically includes chuck, claw and chuck gear, claw is mounted in the slideway of chuck radial direction, chuck gear side and claw side pass through spiral tooth engagement, chuck gear is equipped with and is secured to connected hollow knob, hollow knob reaches on the outside of lower bracket, make claw radial motion locking teeth wheel shaft by turning hollow knob, to lock relative position between upper bracket and lower bracket.The utility model stable structure for ease of maintenaince can carry out fine adjustment；Through-hole is used in the middle part of instrument base, guarantees that instrument being capable of refractive power centering.
Description
Technical field
The utility model belongs to engineering survey auxiliary device field, is related to a kind of tripod, and in particular to a kind of gear type
Adjustable tripod.
Background technique
During present construction survey, the fixed locking device of tripod usually utilizes fastening tripod frame bottom
Top fastening screw is fixed, and lock-screw directly bears the weight of top instrument, which is easy damage in using
It is bad, cause tripod that can not fix.When adjusting height, reference is carried out without graduated scale, effect is relatively coarse, needs to adjust repeatedly
Section, complicated for operation, inefficiency.
Utility model content
In order to overcome the above problem, the utility model provides a kind of adjustable tripod of gear type, to solve existing skill
Problem is easily lost in tripod length locking device in art.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is:
Tripod is adjusted in a kind of gear type, including instrument base and three elevating feets being connected with instrument base,
Be characterized in that: the elevating feet includes upper bracket and lower bracket, and upper bracket is equipped with the slideway slided up and down for lower bracket, slideway
It is interior be equipped with rack gear, lower bracket be equipped with slideway inner rack meshed gears, gear shaft by bearing installation lower bracket in, it is described
Crank is equipped on the outside of lower bracket, the crank is fixedly linked with gear shaft, rotates by crank rocking gear, and lower bracket is driven to exist
It is slided up and down in the slideway of upper bracket, the locking dress for being capable of fixing the two relative position is additionally provided between the upper bracket and lower bracket
It sets.
As an improvement, the locking device is the scroll chuck of locking teeth wheel shaft, chuck, claw and chuck are specifically included
Gear, chuck are fixed on inside lower bracket, and claw is mounted in the slideway of chuck radial direction, and chuck gear side and claw side are logical
Spiral tooth engagement is crossed, chuck gear is equipped with the hollow knob reached on the outside of lower bracket, and the gear shaft is successively from chuck, card
It is passed through among disk gear and hollow knob, claw radial motion locking teeth wheel shaft can be made by turning hollow knob, to lock
Relative position between upper bracket and lower bracket.
As an improvement, the crank is detachably connected with gear shaft, specifically, gear shaft end is equipped with polygonal hole, shake
The polygon forming head being equipped in pluggable polygonal hole.
As an improvement, the lower bracket in be equipped with multiple gears of different sizes, each gear with the rack gear in slideway
Engagement is connected, and the gear shaft of wherein one or more gears is equipped with scroll chuck, rotates different size of gear by crank
Rotation is to adjust lower bracket sliding speed different in the slideway of upper bracket.
As an improvement, the upper bracket is by two support bar groups in left and right at composition on lower bracket for gliding between support rod
Dynamic slideway, the rack gear are set on the inside of support rod.
As an improvement, being respectively arranged on the inside of two support rods there are two the rack gears, tooth is of different sizes on two rack gears.
As an improvement, the lower bracket bottom is equipped with the pointed cone on insertion ground.
As an improvement, the support rod is equipped with the scale of instruction upper bracket and lower bracket relative adjustment total length.
As an improvement, the instrument base is equipped with level meter.
The utility model beneficial effect is:
Present apparatus application gear structure adjusts height, stable structure, easily controllable, using the axial locked dress of scroll chuck
It sets, fixation.In addition increase graduation apparatus, realize fine adjustment.Lower bracket panel is dismountable, crank can be installed at any time and be torn open
It removes, facilitates maintenance.Tradition is held out against the rotation lock that locking mode is changed to axis by the utility model, and locking member is no longer directly born
Upper bracket and the above instrument weight, but driving torque is locked, locking effect is greatly enhanced, extends locking device and uses the longevity
Life, scroll chuck have coupling mechanism force strong, stable structure, the few advantage of failure, can effectively prevent rising caused by stress relaxation
Leg length variation is dropped.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram.
Fig. 2 is that upper bracket and lower bracket connect scheme of installation.
Fig. 3 is Fig. 2 middle gear rack structure partial enlarged view.
Fig. 4 is scroll chuck locking device scheme of installation.
1- instrument base, 2- elevating feet, 3- upper bracket, 4- lower bracket, 5- rack gear, 6- gear, 7- gear shaft, 8- shake
, 9- chuck, 10- claw, 11- chuck gear, the hollow knob of 12-, 13- handle, 14- level meter, 15- scale, 16- locking
Device, 17- scroll chuck.
Specific embodiment
Utility model is illustrated with reference to the accompanying drawing, refers both to relative positional relationship in figure up and down below.
As shown in Figures 1 to 4, a kind of gear type is adjusted tripod, including instrument base 1 and hinged with instrument base 1
Three connected elevating feets 2, the elevating feet 2 include upper bracket 3 and lower bracket 4, and the upper bracket 3 is by two branch in left and right
Strut forms, and the slideway slided up and down for lower bracket 4 is formed between support rod, is equipped with rack gear 5 in slideway, lower bracket 4 is equipped with
With 5 meshed gears 6 of slideway inner rack, gear shaft 7 is installed in lower bracket 4 by bearing, and crank is equipped on the outside of the lower bracket 4
8, the crank 8 is fixedly linked with gear shaft 7, is rotated by 8 rocking gear 6 of crank, and gear 6 and 5 gear motion of rack gear occur
Relative position variation, so that lower bracket 4 slides up and down in the slideway of upper bracket 3, so as to adjust the length of entire elevating feet 2
Degree is additionally provided with the locking device 16 for being capable of fixing the two relative position between the upper bracket 3 and lower bracket 4.
The locking device 16 is the scroll chuck 17 of locking teeth wheel shaft 7, use mature scroll chuck in the prior art,
Scheme of installation schematic diagram is specific to wrap as shown in figure 4, only install a hollow knob in the chuck gear of traditional scroll chuck
Chuck 9, claw 10 and chuck gear 11 are included, chuck 9 is fixed on inside lower bracket 4, and claw 10 is mounted on cunning radial on chuck 9
In road, chuck gear 11 is mounted on chuck 9 by bearing, and 11 side of chuck gear is nibbled with 10 side of claw by helical tooth
It closes, chuck gear 11 is equipped with and is secured to connected hollow knob 12, and the hollow knob 12 reaches outside lower bracket 4,
Gear shaft 7 successively passes through among chuck 9, chuck gear 11 and hollow knob 12, and at 7 end of gear shaft in 4 outside of lower bracket
Portion connects crank 8, and when the separate axle center in the radial slide of chuck 9 of claw 10, claw 10 is not contacted with gear shaft 7, gear
It is unaffected that axis 7 is that gear 6 rotates, and in order to increase the operability of hollow knob 12, can reach the hollow of the outside of lower bracket 4
Anti-skid chequer is arranged in knob 12, turns for convenience, handle 13 can also be arranged on the outside of hollow knob 12, turn sky by handle 13
Gear shaft 7 is locked on claw 10 by heart knob 12, prevents gear 6 from rotating, scroll chuck principle are as follows: hollow knob 12 is turned,
Hollow knob 12 drives claw 10 to slide in the radial slideway of chuck 9 by the rotation of chuck gear 11, thus locking or release
Gear shaft 7, when 10 radial motion locking teeth wheel shaft 7 of claw, gear 6 can not be rotated, then gear 6 and 5 relative position of rack gear are protected
Fixation is held, i.e. upper bracket 3 and 4 relative position of lower bracket is kept fixed, that is, locks the length of elevating feet 2.
As a kind of more excellent embodiment, the crank 8 is detachably connected with gear shaft 7, specifically, 7 end of gear shaft is set
Have polygonal hole (tri-angle-holed or square hole), crank 8 is equipped with the polygon forming head that can be inserted into polygonal hole.
Multiple gears 6 of different sizes are equipped in the lower bracket 4, each gear 6 engages phase with the rack gear 5 in slideway
Even, the gear shaft 7 of wherein one or more gears 6 is equipped with scroll chuck 17, since gear 6 is in different size, then identical
7 velocity of rotation of gear shaft, inevitable gear 6 travel distance on rack gear 5 is different, thus by rotation larger size gear
6 realize the quick sliding in the slideway of upper bracket 3 of lower bracket 4, i.e. 2 length of elevating feet (or height) coarse adjustment；By rotation compared with
The gear 6 of small size realizes that lower bracket 4 slides at a slow speed in the slideway of upper bracket 3, i.e., 2 length of elevating feet (or height) is micro-
It adjusts, selects different size gear 6 quickly to adjust each 2 length of elevating feet by crank 8, so that instrument base 1 is kept
Horizontality, the instrument base 1 is for placing civil engineering surveying instrument, such as level, theodolite etc..
As another more excellent embodiment, there are two the rack gears 5, is respectively arranged on the inside of two support rods, two rack gears 5
Upper tooth is of different sizes, preferably to cooperate gear 6 of different sizes, realizes the coarse adjustment and fine tuning of 2 length of elevating feet.
As another more excellent embodiment, 4 bottom of lower bracket is equipped with the pointed cone on insertion ground, sets on the support rod
Have instruction upper bracket 3 and 4 relative adjustment total length of lower bracket scale 15, the accuracy of 2 length of auxiliary adjustment elevating feet and
Rapidity, the instrument base 1 are equipped with level meter 14, can be air-bubble level 14, three elevating feets 2 is assisted to adjust instrument
The levelness of device pedestal 1.
It probably adjusts in use, three elevating feets 2 are read according to scale 15 to same position, then goes up and down three
Stabilizer blade 2 struts, according to 1 levelness of level meter 14 or other auxiliary devices optical viewer pedestal, first pass through crank 8 select it is larger
The length of 6 three elevating feets 2 of coarse adjustment of gear, then the length by the selection of crank 8 compared with pinion gear three elevating feets 2 of fine tuning,
Until 1 levelness of instrument base is met the requirements, hollow knob 12 is then tightened, so that the claw 10 of scroll chuck 17 blocks wherein
The gear shaft 7 of one gear 6 locks the rotation of respective gears 6, successively locks the length of three elevating feets 2 in this manner
Degree when needing to adjust again, unclamps the upper hollow rotation for needing the elevating feet 2 adjusted when 1 levelness of instrument base changes
Button 12 can be adjusted, and tighten gear shaft 7 described in hollow knob 12 again later.Tradition is held out against locking mode and is changed to by the utility model
The rotation lock of axis, locking member no longer directly bears upper bracket 3 and the above instrument weight, but locks driving torque, greatly
Enhance locking effect, extend 16 service life of locking device, scroll chuck has coupling mechanism force strong, stable structure, and failure is few
The advantages of, 2 length of elevating feet variation caused by stress relaxation can be effectively prevented.
Claims (9)
1. tripod is adjusted in a kind of gear type, special including instrument base and three elevating feets being connected with instrument base
Sign is: the elevating feet includes upper bracket and lower bracket, and upper bracket is equipped with the slideway slided up and down for lower bracket, in slideway
Equipped with rack gear, lower bracket be equipped with slideway inner rack meshed gears, gear shaft is by bearing installation lower bracket, under described
Stent outer is equipped with crank, and the crank is fixedly linked with gear shaft, is rotated by crank rocking gear, drives lower bracket upper
It is slided up and down in the slideway of bracket, the locking dress for being capable of fixing the two relative position is additionally provided between the upper bracket and lower bracket
It sets.
2. tripod is adjusted in a kind of gear type as described in claim 1, it is characterised in that: the locking device is locking gear
The scroll chuck of axis specifically includes chuck, claw and chuck gear, and chuck is fixed on inside lower bracket, and claw is mounted on card
In the slideway of disk radial direction, by spiral tooth engagement, chuck gear is equipped with and reaches lower branch for chuck gear side and claw side
Hollow knob on the outside of frame, the gear shaft successively pass through among chuck, chuck gear and hollow knob, can be by turning sky
Heart knob makes claw radial motion locking teeth wheel shaft, to lock relative position between upper bracket and lower bracket.
3. tripod is adjusted in a kind of gear type as claimed in claim 2, it is characterised in that: the crank and gear shaft are detachable
It is connected, specifically, gear shaft end is equipped with polygonal hole, crank is equipped with the polygon forming head that can be inserted into polygonal hole.
4. tripod is adjusted in a kind of gear type as claimed in claim 3, it is characterised in that: be equipped in the lower bracket multiple big
Small different gear, each gear, which is engaged with the rack gear in slideway, to be connected, and sets on the gear shaft of wherein one or more gears
There is scroll chuck, different size of gear rotation is rotated by crank to adjust lower bracket cunning different in the slideway of upper bracket
Dynamic speed.
5. a kind of adjustable tripod of gear type as described in Claims 1-4 any one, it is characterised in that: the upper bracket
By two support bar groups in left and right at the slideway that composition is slided up and down for lower bracket between support rod, the rack gear is set to support rod
Inside.
6. tripod is adjusted in a kind of gear type as claimed in claim 5, it is characterised in that: there are two the rack gears, sets respectively
On the inside of two support rods, tooth is of different sizes on two rack gears.
7. tripod is adjusted in a kind of gear type as claimed in claim 5, it is characterised in that: the lower bracket bottom is equipped with insertion
The pointed cone on ground.
8. tripod is adjusted in a kind of gear type as claimed in claim 5, it is characterised in that: the support rod is equipped in instruction
The scale of bracket and lower bracket relative adjustment total length.
9. tripod is adjusted in a kind of gear type as claimed in claim 5, it is characterised in that: the instrument base is equipped with level
Instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820570036.7U CN208295470U (en) | 2018-04-20 | 2018-04-20 | A kind of adjustable tripod of gear type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820570036.7U CN208295470U (en) | 2018-04-20 | 2018-04-20 | A kind of adjustable tripod of gear type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208295470U true CN208295470U (en) | 2018-12-28 |
Family
ID=64725037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820570036.7U Expired - Fee Related CN208295470U (en) | 2018-04-20 | 2018-04-20 | A kind of adjustable tripod of gear type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208295470U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116697225A (en) * | 2023-07-31 | 2023-09-05 | 南京长天测绘技术有限公司 | GPS satellite measuring instrument support convenient to fix |
-
2018
- 2018-04-20 CN CN201820570036.7U patent/CN208295470U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116697225A (en) * | 2023-07-31 | 2023-09-05 | 南京长天测绘技术有限公司 | GPS satellite measuring instrument support convenient to fix |
| CN116697225B (en) * | 2023-07-31 | 2023-09-26 | 南京长天测绘技术有限公司 | GPS satellite measuring instrument support convenient to fix |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181228 |