CN209370761U - Telescopic device - Google Patents
Telescopic device Download PDFInfo
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- CN209370761U CN209370761U CN201821939269.6U CN201821939269U CN209370761U CN 209370761 U CN209370761 U CN 209370761U CN 201821939269 U CN201821939269 U CN 201821939269U CN 209370761 U CN209370761 U CN 209370761U
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- screw rod
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- arm joint
- nut
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Abstract
The utility model provides a kind of telescopic device.Telescopic device according to the present utility model includes driving portion, pars contractilis, and pars contractilis includes chopped-off head arm joint, final stage arm joint and at least one insert jib section；Chopped-off head arm joint includes outer barrel and chopped-off head screw rod, and insert jib section includes middle cylinder, middle screw rod and intermediate nut, and final stage arm joint includes final stage cylinder and final stage nut；Outer barrel, middle cylinder and final stage cylinder successively it is telescopic socket and it is relatively unrotatable；Chopped-off head screw rod is rotatably supported in outer barrel and is connected with driving portion, and successively screw thread is socketed for chopped-off head screw rod and middle screw rod；Intermediate nut and the middle screw rod or chopped-off head screw flight of upper level connect, and intermediate nut is rotatably connected with middle cylinder；Final stage nut is threadedly coupled with the middle screw rod of upper level, and final stage nut is fixedly connected with final stage cylinder；Middle screw rod and chopped-off head screw rod are equipped with stopper section to prevent intermediate nut or final stage nut from deviating from.Operation and maintenance is more convenient.
Description
Technical field
The utility model relates to machinery equipment field, in particular to a kind of telescopic device.
Background technique
In order to realize different height, parameter, the demand of image detection of different location.Existing detection device use process
In would generally be mounted on telescopic device, to meet the needs of different location and angle are shot.Existing telescopic device
Volume and weight is all bigger, and occupied space is more, at high cost, and structure is complicated, and the reliability of the kind of drive and stretching structure is not high,
It is used for a long time in use and is easy to appear problem, structure is complicated causes maintenance replacement difficult again, and operation and maintenance cost is all very high.
Utility model content
The utility model is intended to provide a kind of telescopic device, to solve the problems, such as that existing using effect is bad.
The utility model provides a kind of telescopic device, including driving portion, pars contractilis, and pars contractilis includes chopped-off head arm joint, end
Grade arm joint and at least one insert jib section；Chopped-off head arm joint includes outer barrel and chopped-off head screw rod, insert jib section include middle cylinder, in
Between screw rod and intermediate nut, final stage arm joint includes final stage cylinder and final stage nut；Outer barrel, middle cylinder and final stage cylinder are successively
It is telescopic socket and it is relatively unrotatable；Chopped-off head screw rod is rotatably supported in outer barrel and is connected with driving portion, first
Successively screw thread is socketed for grade screw rod and middle screw rod；Intermediate nut and the middle screw rod or chopped-off head screw flight of upper level connect,
Intermediate nut is rotatably connected with middle cylinder；Final stage nut is threadedly coupled with the middle screw rod of upper level, final stage nut and end
Grade cylinder is fixedly connected；Middle screw rod and chopped-off head screw rod are equipped with stopper section to prevent intermediate nut or final stage nut from deviating from.
Optionally, intermediate nut moves under the driving for the screw rod being threadedly engaged along screw rod, to push corresponding intermediate cylinder
Body and middle screw rod are mobile；Or rotated with the screw rod being threadedly engaged, to drive corresponding middle screw rod to rotate.
Optionally, when the upper level middle screw rod rotation cooperated with final stage nut, final stage nut is in upper level middle screw
It under the driving of bar, is moved along upper level middle screw rod, to push the final stage cylinder being fixedly connected mobile.
Optionally, the end of middle cylinder is provided with end cover structure, is provided with accommodating cavity on end cover structure, in intermediate nut
It is provided with stopper protrusion, stopper protrusion protrudes into accommodating cavity.
Optionally, end cover structure includes end cover body and door, and end cover body is fixedly connected on middle cylinder, and door is detachable
Ground is connected on end cover body, and is matched with end cover body and be encircled into accommodating cavity.
Optionally, telescopic device further includes sliding conduction mechanism, and sliding conduction mechanism includes conductive part and sliding conduction list
Member is provided with conductive part in each arm joint, and sliding conduction unit is arranged between adjacent two-stage arm joint, and in adjacent two-stage arm joint
When relative movement, it is electrically connected the conductive part in adjacent two-stage arm joint.
Optionally, sliding conduction unit is arranged in the rear stage arm joint in adjacent two-stage arm joint, and can be with the arm at place
Section is mobile relative to previous stage arm joint.
Optionally, sliding conduction unit includes conductive contact piece and elastic component, and conductive contact piece is movable by elastic component
Ground is connected in the arm joint at place, and is held out against on the conductive part of previous stage arm joint by elastic component.
Optionally, conductive contact piece includes brush, and through-hole is provided in the arm joint where sliding conduction mechanism, corresponding to lead
Electric structure is pierced by from through-hole, and is connect with brush.
The driving portion of telescopic device according to the present utility model, the telescopic device provides power for pars contractilis, makes pars contractilis
It can stretch as needed, to adjust length.In pars contractilis, chopped-off head arm joint, insert jib section and final stage arm joint successively connect
It connects, and can be movable relatively, to realize the flexible of pars contractilis.The successively scalable set such as chopped-off head cylinder, middle cylinder and final stage cylinder
It connects and relatively unrotatable, the structural strength of telescopic device entirety can be promoted, and relative torsion is avoided to cause to be prone to wear
Problem.Chopped-off head screw rod, middle screw rod, intermediate nut and final stage nut, which cooperate, realizes transmission, to drive the cylinder of cooperation to move
It is dynamic, it is reliable and stable to guarantee that pars contractilis stretches.The telescopic device of the utility model, it is compact-sized reliable, it occupies little space, components
Quantity is few, long service life, can significantly subtract reduced-maintenance time and number, reduce the use cost of Life cycle.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide a further understanding of the present invention, the utility model
Illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.In attached drawing
In:
Fig. 1 is the schematic cross-sectional view that telescopic device according to the present utility model is in contraction state；
Fig. 2 is the side structure schematic view of telescopic device according to the present utility model；
Fig. 3 is the schematic cross-sectional view that telescopic device according to the present utility model is in stretching state；
Fig. 4 is the partial enlarged view of the telescopic device in Fig. 3；
Fig. 5 is the partial enlarged view in Fig. 4 at A.
Description of symbols:
10, driving portion；11, driving motor；12, transmission belt；13, driving wheel；14, bearing；20, pars contractilis；211, chopped-off head
Cylinder；212, chopped-off head screw rod；221, middle cylinder；222, middle screw rod；223, intermediate nut；223a, stopper protrusion；231, last
Grade cylinder；232, final stage nut；241, end cover body；242, door；25, sliding conduction mechanism；251, conductive part；252, conduction connects
Contact element；253, elastic component；26, stopper section.
Specific embodiment
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figures 1 to 5, embodiment according to the present utility model, telescopic device include driving portion 10, pars contractilis 20,
Pars contractilis 20 includes chopped-off head arm joint, final stage arm joint and at least one insert jib section；Chopped-off head arm joint includes outer barrel 211 and chopped-off head spiral shell
Bar 212, insert jib section include middle cylinder 221, middle screw rod 222 and intermediate nut 223, and final stage arm joint includes final stage cylinder
231 and final stage nut 232；Outer barrel 211, middle cylinder 221 and final stage cylinder 231 successively it is telescopic socket and cannot be opposite
Rotation；Chopped-off head screw rod 212 is rotatably supported in outer barrel 211 and is connected with driving portion 10, chopped-off head screw rod 212 and centre
Successively screw thread is socketed screw rod 222；Intermediate nut 223 is threadedly coupled with the middle screw rod 222 of upper level or chopped-off head screw rod 212,
Intermediate nut 223 is rotatably connected with middle cylinder 221；Final stage nut 232 is threadedly coupled with the middle screw rod 222 of upper level,
Final stage nut 232 is fixedly connected with final stage cylinder 231；Middle screw rod 222 and chopped-off head screw rod 212 be equipped with stopper section 26 with to prevent
Only intermediate nut 223 or final stage nut 232 are deviate from.
The driving portion 10 of the telescopic device is that pars contractilis 20 provides power, and pars contractilis 20 is enable to be stretched as needed
Contracting, to adjust length.In pars contractilis 20, chopped-off head arm joint, insert jib section and final stage arm joint are sequentially connected, and can be movable relatively,
To realize the flexible of pars contractilis 20, to satisfy the use demand.Chopped-off head cylinder 211, middle cylinder 221 and final stage cylinder 231 etc.
Successively it is scalable socket and it is relatively unrotatable, the structural strength of telescopic device entirety can be promoted, and relative torsion is avoided to make
The problem of at being prone to wear.Chopped-off head screw rod 212, middle screw rod 222, intermediate nut 223 and final stage nut 232, which cooperate, to be realized
It is reliable and stable to guarantee that pars contractilis 20 stretches to drive the cylinder of cooperation mobile for transmission, compact-sized reliable, occupies little space, zero
Number of components is few, long service life, can significantly subtract reduced-maintenance time and number, reduce the use of Life cycle at
This.
The telescopic device can be applied on image capture device, be supported to image capture device, when needed, can
Keep Image Acquisition effect more preferable, flexibility with meet demand with height and the angle etc. for adjusting image capture device as needed
It is stronger, promote adaptability.
As shown in Figure 1, in the present embodiment, driving portion 10 includes driving motor 11, transmission belt 12, driving wheel 13 and bearing
14 etc..
Driving motor 11 is fixedly connected on pedestal by support frame, to realize supporting and fixing to driving motor 11.
The output shaft of driving motor 11 is connect by transmission belt 12 with driving wheel 13, to drive driving wheel 13 to rotate.Due to driving wheel 13
It is connect with chopped-off head screw rod 212, so that driving wheel 13 drives chopped-off head screw rod 212 to move during rotation.Bearing 14 is used to support
Chopped-off head cylinder 211.
Driving portion 10 in the present embodiment provides power by driving motor 11, so that the structure of driving portion 10 is more stepped up
It gathers, is adapted to the smaller usage scenario of occupied space.Certainly, in other embodiments, can need using other drivings
Portion, such as hydraulic-driven portion etc..
About pars contractilis 20, as shown in Figure 1, in the present embodiment, driving of the intermediate nut 223 in the screw rod being threadedly engaged
It is lower to be moved along screw rod, to push corresponding middle cylinder 221 and middle screw rod 222 mobile；Or rotated with the screw rod being threadedly engaged,
To drive corresponding middle screw rod 222 to rotate.It can both guarantee reliablely and stablely to be driven in this way, thus in the driving of driving portion 10
The lower middle cylinder 221 for driving connection is mobile, to realize the length adjustment of pars contractilis 20, and can guarantee the intermediate cylinder of connection
Body 221 will not rotate with it, and guarantee to support image capture device reliable.
When the upper level middle screw rod 222 cooperated with final stage nut 232 rotates, final stage nut 232 is among upper level
It under the driving of screw rod 222, is moved along upper level middle screw rod 222, to push the final stage cylinder 231 being fixedly connected mobile.Final stage
Nut 232 is fixedly connected with final stage cylinder 231, so as to drive final stage cylinder 231 mobile.
In the present embodiment, the end of middle cylinder 221 is provided with end cover structure, is provided with accommodating cavity on end cover structure,
Stopper protrusion 223a is provided in intermediate nut 223, stopper protrusion 223a is protruded into accommodating cavity, and middle screw both may be implemented in this way
Mother 223 and the connection of corresponding middle cylinder 221, make intermediate nut 223 when moving, due to stopper protrusion 223a and accommodating cavity
Cooperation, middle cylinder 221 can be mobile with intermediate nut 223, and being capable of opposite intermediate cylinder when intermediate nut 223 rotates
Body 221 rotates, and middle cylinder 221 will not rotate with it.
Optionally, for the ease of installing and making intermediate nut 223 and end cover structure to cooperate, end cover structure includes end cover body
241 and door 242, end cover body 241 be fixedly connected on middle cylinder 221, door 242 is detachably connected to end cover body 241
On, and match with end cover body 241 and be encircled into accommodating cavity.
Below with reference to shown in Fig. 4, the telescopic process of the telescopic device is described as follows:
When being not used, the pars contractilis 20 of telescopic device is in contraction state, as shown in Figure 1.
When needing pars contractilis 20 to extend, the driving motor 11 of driving portion 10 starts, and chopped-off head 212 is driven to rotate, due to
Intermediate nut 223 is threadedly engaged with chopped-off head screw rod 212, so intermediate nut 212 under its driving, is moved along chopped-off head screw rod 212.
Again since the end cover structure of intermediate nut 223 and middle cylinder 221 cooperates, and stopper protrusion 223a and end cover structure backstop, institute
It is stretched out from chopped-off head arm joint 211 under the driving of intermediate nut 223 with middle cylinder 221.At the same time, with intermediate nut 223
Cooperation middle screw rod 222 also moves.
When intermediate nut 223 is moved to the end for the screw rod being threadedly engaged, by stopper section 26, (stopper section 26 be can be
Backstop nail etc.) blocking, intermediate nut 223 stop movement, intermediate nut 223 and middle screw rod 222 can be with chopped-off head screw rods 212
Rotation, so that rear stage intermediate nut 223 starts to move, and then makes rear stage middle cylinder 221 start to stretch out.It is achieved in and stretches
The stretching step by step of the arm joints at different levels in contracting portion 20, increases length.When needing the length of pars contractilis 20 to reduce, as long as making driving electricity
Machine 11 rotates backward.
Due to being threadedly engaged between rear stage nut and previous stage screw rod, it, can be at any time when pars contractilis 20 stretches
Stop, so that pars contractilis 20 is maintained at certain length, meet more length requirements, and degree of regulation is more preferable.
Optionally, in order to adapt to different demands, it is ensured that may be what telescopic device supported when pars contractilis 20 stretches
Equipment power supply, telescopic device further include sliding conduction mechanism 25, and sliding conduction mechanism 25 includes conductive part 251 and sliding conduction list
Member is provided with conductive part 251 in each arm joint, and sliding conduction unit is arranged between adjacent two-stage arm joint, and in adjacent two-stage
When arm joint relatively moves, it is connected with each other the conductive part 251 in adjacent two-stage arm joint.
Conductive structure 25 can be conducting wire, such as copper wire can be realized electric energy conduction.Certainly, the substance transmitted as needed
Different (such as electric energy, optical signal, electric signals), conducting wire can be other any materials appropriate.More preferably, conductive part 25 is band
Shape, the length direction along arm joint extend.
In order to ensure being able to achieve the transmitting of reliable electric energy and/or signal when the arm joint at different levels of pars contractilis 20 is flexible,
Sliding conduction unit is arranged in the rear stage arm joint in adjacent two-stage arm joint, and can be with the arm joint at place with respect to previous stage arm joint
It is mobile.
Optionally, sliding conduction unit includes conductive contact piece 252 and elastic component 253, and conductive contact piece 252 passes through elasticity
Part 253 is movably connected in the arm joint at place, and is held out against on the conductive part 251 of previous stage arm joint by elastic component 253.
Specifically, as shown in figure 5, elastic component 253 can be spring, conductive contact piece 252 can be brush, for example, carbon
Brush brush.Wherein, brush is arranged on the cylinder at place, and is electrically connected with the conductive structure on the cylinder at place.
For example, being provided with through-hole in arm joint where sliding conduction unit, corresponding conductive part 251 is pierced by from through-hole,
And it is connect with brush.
In the present embodiment, spring withstands on brush on the conducting wire of previous stage cylinder, it is ensured that carbon brush brush is in moving process
In still be able to conductive contact with previous stage cylinder, and then guarantee the stabilization of electric energy and/or signal transmission, and can guarantee durable
Degree, avoid in the prior art pars contractilis 20 repeatedly in telescopic process conducting wire as caused by frequent deformation since alternate stress acts on
And the problem of being easily broken off.
Further, since being provided with sliding conduction structure 25 on each rear stage cylinder, and rear stage cylinder is relatively previous
It when grade cylinder is mobile, can be oriented to by sliding conduction connection structure 25, so that cylinder is more steady in moving process.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (9)
1. a kind of telescopic device, which is characterized in that including driving portion (10), pars contractilis (20), the pars contractilis (20) includes head
Grade arm joint, final stage arm joint and at least one insert jib section；
The chopped-off head arm joint includes outer barrel (211) and chopped-off head screw rod (212), the insert jib section include middle cylinder (221),
Middle screw rod (222) and intermediate nut (223), the final stage arm joint include final stage cylinder (231) and final stage nut (232)；
The outer barrel (211), middle cylinder (221) and the final stage cylinder (231) successively it is telescopic socket and cannot phase
To rotation；
The chopped-off head screw rod (212) is rotatably supported in the outer barrel (211) and is connected with the driving portion (10),
Successively screw thread is socketed for the chopped-off head screw rod (212) and the middle screw rod (222)；
The intermediate nut (223) is threadedly coupled with the middle screw rod (222) of upper level or chopped-off head screw rod (212), it is described in
Between nut (223) be rotatably connected with the middle cylinder (221)；
The final stage nut (232) is threadedly coupled with the middle screw rod (222) of upper level, the final stage nut (232) with
The final stage cylinder (231) is fixedly connected；
The middle screw rod (222) and the chopped-off head screw rod (212) are equipped with stopper section (26) to prevent intermediate nut (223)
Or final stage nut (232) abjection.
2. telescopic device according to claim 1, which is characterized in that the intermediate nut (223) is in the spiral shell being threadedly engaged
Screw rod described in the driving lower edge of bar is mobile, to push corresponding middle cylinder (221) and middle screw rod (222) mobile；Or with spiral shell
The screw rod rotation of line cooperation, to drive the corresponding middle screw rod (222) to rotate.
3. telescopic device according to claim 1 or 2, which is characterized in that upper when cooperating with the final stage nut (232)
When level-one middle screw rod (222) rotates, the final stage nut (232) is under the driving of the upper level middle screw rod (222), edge
The upper level middle screw rod (222) is mobile, to push the final stage cylinder (231) being fixedly connected mobile.
4. telescopic device according to claim 1, which is characterized in that the end of the middle cylinder (221) is provided with end
Lid structure is provided with accommodating cavity on the end cover structure, is provided with stopper protrusion (223a), institute on the intermediate nut (223)
Stopper protrusion (223a) is stated to protrude into the accommodating cavity.
5. telescopic device according to claim 4, which is characterized in that the end cover structure includes end cover body (241) and gear
It covers (242), the end cover body (241) is fixedly connected on the middle cylinder (221), and the door (242) removably connects
It connects on the end cover body (241), and matches with the end cover body (241) and be encircled into the accommodating cavity.
6. telescopic device according to claim 1, which is characterized in that the telescopic device further includes sliding conduction mechanism
(25), the sliding conduction mechanism (25) includes conductive part (251) and sliding conduction unit, is respectively provided in each arm joint
It states conductive part (251), the sliding conduction unit is arranged between adjacent two-stage arm joint, and relatively moves in adjacent two-stage arm joint
When, it is electrically connected the conductive part (251) in adjacent two-stage arm joint.
7. telescopic device according to claim 6, which is characterized in that the sliding conduction unit is arranged in adjacent two-stage arm
In rear stage arm joint in section, and can be mobile relative to previous stage arm joint with the arm joint at place.
8. telescopic device according to claim 7, which is characterized in that the sliding conduction unit includes conductive contact piece
(252) it is movably connected by the elastic component (253) at place with elastic component (253), the conductive contact piece (252)
In arm joint, and held out against on the conductive part (251) of previous stage arm joint by the elastic component (253).
9. telescopic device according to claim 8, which is characterized in that the conductive contact piece (252) includes brush, described
Through-hole is provided in arm joint where sliding conduction unit, the corresponding conductive part (251) connect with the brush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821939269.6U CN209370761U (en) | 2018-11-23 | 2018-11-23 | Telescopic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821939269.6U CN209370761U (en) | 2018-11-23 | 2018-11-23 | Telescopic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209370761U true CN209370761U (en) | 2019-09-10 |
Family
ID=67833629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821939269.6U Active CN209370761U (en) | 2018-11-23 | 2018-11-23 | Telescopic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209370761U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109506102A (en) * | 2018-11-23 | 2019-03-22 | 杭州申昊科技股份有限公司 | Telescopic device |
| CN109506103A (en) * | 2018-11-23 | 2019-03-22 | 杭州申昊科技股份有限公司 | Telescopic device |
-
2018
- 2018-11-23 CN CN201821939269.6U patent/CN209370761U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109506102A (en) * | 2018-11-23 | 2019-03-22 | 杭州申昊科技股份有限公司 | Telescopic device |
| CN109506103A (en) * | 2018-11-23 | 2019-03-22 | 杭州申昊科技股份有限公司 | Telescopic device |
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