CN206620686U - The pet tractor of pull rope extension elongation can be limited - Google Patents
The pet tractor of pull rope extension elongation can be limited Download PDFInfo
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- CN206620686U CN206620686U CN201621368964.2U CN201621368964U CN206620686U CN 206620686 U CN206620686 U CN 206620686U CN 201621368964 U CN201621368964 U CN 201621368964U CN 206620686 U CN206620686 U CN 206620686U
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- pull rope
- gear
- housing
- extension elongation
- ratchet
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Abstract
The utility model belongs to technical field of pet articles, more particularly to one kind can limit pull rope extension elongation pet tractor.It solves and the technical problems such as pull rope extension elongation can not be accurately controlled existing for prior art.Originally the pet tractor of pull rope extension elongation, which can be limited, includes housing and the pull rope being arranged in housing, there is the line outlet for stretching out pull rope on described housing, described housing is provided with the adjusting knob for the length scale that adjustable pull rope stretches out out of housing, the external circumferential of described adjusting knob is provided with length scale, the reading of described length scale is n times of physical length, n is the real number more than 1, being provided with described housing can be by the gear structure of n times of the regulation efficiency amplification of adjusting knob, described housing interior energy prevents the position limiting structure of pull rope stretching housing.Compared with prior art, the utility model advantage is：Accurately control the length range of pull rope stretching, the safety of effective guarantee pet.
Description
Technical field
The utility model belongs to technical field of pet articles, more particularly to a kind of pet for limiting pull rope extension elongation
Tractor.
Background technology
Raising pet people have a thoughts and feelings, lead pet go out stroll when, a simple pull rope use ten
Divide inconvenience, be likely to ankle injury finger, therefore a secondary pet tractor for limiting pull rope extension elongation smoothly is very
It is important, meanwhile, the good pet tractor for limiting pull rope extension elongation can also preferably draw pet, on the market big
It is all that nature stretches out that part pet leash, which is stretched out, that is, follows running for pet and stretch out, and withdraw directly using wind spring by
Pull rope is disposably withdrawn completely, can not preferably limit the length range of pull rope.
In order to solve the problems, such as that prior art is present, people have carried out long-term exploration, it is proposed that miscellaneous solution
Scheme.For example, Chinese patent literature discloses a kind of pet tractor, [application number：200820084630.1], including housing,
Rotating disk and pull rope, described rotating disk are enclosed on the central shaft in housing, and described housing is provided with handle, and pull rope is wrapped in
On rotating disk and its outer end is connected with handle, the volume Huang that can rotate rotating disk is provided between rotating disk in housing, the one of housing
Side is additionally provided with fastener, and one end of described fastener is hinged on housing, and bullet is additionally provided with the hinged place of fastener and housing
Spring, under the action of the spring above-mentioned fastener be connected with the necklace of housing.
Above-mentioned scheme improves the subproblem of prior art to a certain extent, and still, the program is also at least present
Following defect：The extension elongation of pull rope can not be accurately controlled.
The content of the invention
The purpose of this utility model is in view of the above-mentioned problems, offer is a kind of to accurately control limiting for pull rope extension elongation
Determine the pet tractor of pull rope extension elongation.
To reach above-mentioned purpose, the utility model employs following technical proposal：Originally pull rope extension elongation can be limited
Pet tractor includes housing and the pull rope being arranged in housing, has the outlet for stretching out pull rope on described housing
Mouthful, described housing is provided with the adjusting knob for the length scale that adjustable pull rope stretches out out of housing, described regulation rotation
The external circumferential of button is provided with length scale, and the reading of described length scale is n times of physical length, and n is the real number more than 1,
Being provided with described housing can be by the gear structure of n times of the regulation efficiency amplification of adjusting knob, the resistance of described housing interior energy
Only pull rope stretches out the position limiting structure of housing.There is the pet tractor length scale to carry out reading, and the arc length of actual rotation
The length of pull rope with actually stretching out has the numerical value determined, and the numerical value is the structure by the gear structure of inside
Data reduction and draw, therefore in practical application, the pull rope actually stretched out accurately can be read by length scale
Length, the distance range that pet is walked out can be more accurately controlled, so as to ensure the safety of pet.
In the above-mentioned pet tractor for limiting pull rope extension elongation, described gear structure includes setting
In housing and the gear ring that is rotated coaxially with adjusting knob, described gear ring by engage successively first gear and second gear and with
3rd gear is connected, and when described ring gear against rotation, described first gear, second gear, the linear velocity of the 3rd gear are identical,
The 3rd described gear has the 4th gear being coaxial therewith, and the 4th described gear engages with the 5th gear, and the described the 5th
The coil of gear and winding pull rope rotates coaxially.
In the above-mentioned pet tractor for limiting pull rope extension elongation, described gear ring radius is adjusting knob half
A times of footpath, described gear ring radius are b times of the 3rd tooth radius, and the 4th described tooth radius is the c of the 3rd tooth radius
Times, the 4th described tooth radius is d times of the 5th gear, and coil radius is e times of the 5th tooth radius.
In the above-mentioned pet tractor for limiting pull rope extension elongation, a, b, c, d, e are all the real number more than 1.
In the above-mentioned pet tractor for limiting pull rope extension elongation, a*c*e=n.
In the above-mentioned pet tractor for limiting pull rope extension elongation, described position limiting structure includes and coil axle
To ratchet that is fixed and rotating coaxially, have in described housing and be adapted with ratchet and limit what ratchet can only rotate clockwise
Ratchet.
There is controllable ratchet in the above-mentioned pet tractor for limiting pull rope extension elongation, on described housing
Double button, when described double button is pressed/ejected, described ratchet departs from/entered the plane where ratchet
It is interior.
In the above-mentioned pet tractor for limiting pull rope extension elongation, there is telescopic key on described housing,
Described enclosure interior has the flexible tongue body fixed with telescopic key, when described flexible tongue body is axially stretched into housing,
Just it is caught in the ratchet of ratchet.
In the above-mentioned pet tractor for limiting pull rope extension elongation, described flexible tongue body, which is provided with, resets bullet
Spring, when not having external force, back-moving spring can pop into position flexible tongue body.
In the above-mentioned pet tractor for limiting pull rope extension elongation, described adjusting knob includes being arranged on shell
The rotary lid of body side, the pointer mutually fixed with rotary lid is radially provided with the outer surface of rotary lid.
Compared with prior art, the advantages of pet tractor that originally can limit pull rope extension elongation, is：Pull rope
The regulation of length is more convenient, after regulation efficiency amplification, can the easily longer pull rope of regulation in shorter time again, and
The scope of regulation is more accurate, accurately can read the length specifically stretched out from the length scale of surface of shell, and can
By length control in required safe range, so as to ensure the safety of pet.
Brief description of the drawings
Fig. 1 is sectional view provided by the utility model.
Fig. 2 is the opposite side of sectional view provided by the utility model.
Fig. 3 is shell schematic diagram provided by the utility model.
In figure, housing 1, line outlet 2, adjusting knob 3, rotary lid 4, pointer 5, gear ring 6, first gear 7, the second tooth
The 8, the 3rd gear 9 of wheel, the 4th gear 10, the 5th gear 11, coil 12, ratchet 13, ratchet 14, double button 15, flexible press
Key 16, flexible tongue body 17.
Embodiment
The utility model is described in more detail with reference to the accompanying drawings and detailed description.
As Figure 1-3, originally can limit the pet tractor of pull rope extension elongation includes housing 1 and is arranged on housing
Pull rope in 1, has the line outlet 2 for stretching out pull rope on described housing 1, and described housing 1 is provided with adjustable traction
The adjusting knob 3 for the length scale stretched out out of housing 1 of restricting, the external circumferential of described adjusting knob 3 are provided with length scale, have
The length scale that the position of the body length scale is set on housing 1 along the external circumferential of adjusting knob 3, and the reality of the length scale
Border length is the girth of the adjusting knob 3, and the reading of described length scale is n times of physical length, and n is the reality more than 1
Number, therefore the reading of length scale is scaling for n times of the graduated scale this body length, if for example, the length of the length scale
Degree is the Zhou Changwei 15cm of adjusting knob 3, then the length value for the maximum pull rope actually released is n*15cm (15cm herein
It is merely illustrative, concrete numerical value can be adjusted according to different model size).
Further, being provided with described housing 1 can be by the gear knot of n times of the regulation efficiency amplification of adjusting knob 3
Structure, gear structure include the gear ring 6 for being arranged on housing 1 and being rotated coaxially with adjusting knob, and described gear ring 6 is by successively
Engage first gear 7 and second gear 8 and be connected with the 3rd gear 9, when described gear ring 6 rotates, described first gear
7th, second gear 8, the linear velocity of the 3rd gear 9 are identical, and the 3rd described gear 9 has the 4th gear 10 being coaxial therewith, institute
The 4th gear 10 stated engages with the 5th gear 11, and the coil 12 of the 5th described gear 11 and winding pull rope rotates coaxially.
Specifically, the radius of gear ring 6 is a times of the radius of adjusting knob 3, and the described radius of gear ring 6 is b times of the radius of the 3rd gear 9, institute
The radius of the 4th gear 10 stated is c times of the radius of the 3rd gear 9, and the described radius of the 4th gear 10 is d times of the 5th gear 11,
The radius of coil 12 is e times of the radius of the 5th gear 11.Wherein a, b, c, d, e are all the real number more than 1.
The above-mentioned gear structure of labor, it is assumed that the camber line distance that adjusting knob 3 is rotated is x, it is therefore apparent that
Gear ring 6 and adjusting knob 3 have identical angular speed, therefore the arc length rotated is directly proportional to radius, i.e. the rotation of gear ring 6
Camber line distance be a times of adjusting knob 3, and gear ring 6, first gear 7, second gear 8, the 3rd gear 9 engage successively, therefore
Four have identical linear velocity, so the camber line distance that the 3rd gear 9 rotates is a*x；And the 3rd gear 9 and the 4th gear 10
Between there is same angular velocity, so when the 3rd gear 9 camber line distance be a*x when, the camber line of the actual rotation of the 4th gear 10
Distance is a*c*x；4th gear 10 engages with the 5th gear 11, therefore the two has identical linear velocity, so the 5th gear 11
Camber line distance also be a*c*x, the 5th gear 11 is to rotate coaxially with coil 12, therefore has same angular velocity, thus the two
Camber line distance than for radius ratio therebetween, so the camber line distance that coil 12 rotates is a*c*e*x, and coil 12 rotates
Camber line distance be exactly the actual length stretched of pull rope, as a*c*e*x.
With reference to above-mentioned analysis, and the regulation efficiency for mentioning adjusting knob 3 above amplifies n times, so when regulation rotation
When the camber line distance that button 3 rotates is x, the length of pull rope stretching is x*n, it is possible to obtains a*c*e=n.It is possible thereby to
Go out, the radius ratio of three group structures of the efficiency multiplication factor of the adjusting knob with rotating coaxially is relevant, and as the radius of gear ring 6 is with adjusting
Save the radius ratio of knob 3, the radius of the 4th gear 10 and the radius ratio of the 3rd gear 9, the radius of coil 12 and the radius ratio of the 5th gear 11.
In actual production process, defeated three groups of radius ratios in change, so as to accurately set the regulation efficiency of adjusting knob 3, finally
The pet tractor of various different model sizes is produced for different pet types and different customer demands.
In the present embodiment, the described interior energy of housing 1 prevents the position limiting structure of pull rope stretching housing 1.Position limiting structure bag
Include with the axial restraint of coil 12 and the ratchet 13 that rotates coaxially, have in described housing 1 and be adapted with ratchet 13 and limit spine
The ratchet 14 that wheel 13 can only rotate clockwise.When rotating clockwise, ratchet 14 can not limit the rotation of ratchet 13, and turn counterclockwise
When dynamic, the rotation of ratchet 13 can be stuck by the institute of ratchet 14.And it is to withdraw pull rope that ratchet 13, which rotates clockwise corresponding, the inverse time
Pin is to stretch out pull rope corresponding to rotating, so in practice, withdraws the influence that pull rope is not exposed to position limiting structure, and
In the pull rope of length required for stretching, the position limiting structure can prevent pull rope from further being drawn in the case of non-artificial
Bigger length is stretched, runs chaotically so as to reduce pet and causes unexpected generation.
Further, there is the double button 15 of controllable ratchet 14, when described double button 15 is pressed on housing 1
Under/ejection when, described ratchet 14 departs from/entered in the plane at the place of ratchet 13.When needing to stretch out pull rope, can press
The double button 15, now ratchet 14 departs from ratchet 13, therefore the rotation of ratchet 13 is not received ratchet 14 and influenceed, and be free to
It is flexible, and in the length required for stretching out, double button 15 can be ejected, now ratchet 14 be caught in again ratchet 13 it
In, now pull rope can only withdraw and can not continue to stretch out.
Further, there is telescopic key 16, the described inside of housing 1 has to be fixed with telescopic key 16 on housing 1
Flexible tongue body 17, when described flexible tongue body 17 is axially stretched into housing 1, be caught in just in the ratchet of ratchet 13.It is flexible
Tongue body 17 is provided with back-moving spring, and when not having external force, back-moving spring can pop into position flexible tongue body 17.Actually using
When, depend merely on that the position-limiting action of ratchet 13 is unrealistic to limit the further stretching of pull rope, and pet is when being released, easily
Quickly go out, now pull rope stretches out speed, and the velocity of rotation of ratchet 13 also improves therewith, if pressing double rashly
It button 15, then may cause the damage of ratchet 13, now can first press telescopic key 16, so as to terminate the rotation of ratchet 13,
Treat it is stable after, ejection double button 15 so that ratchet 14 is caught in ratchet 13, and telescopic key 16 can automatically reset bullet
Go out.
In the present embodiment, adjusting knob 3 includes the rotary lid 4 for being arranged on the side of housing 1, rotary lid 4
The pointer 5 fixed with the rotary phase of lid 4 is radially provided with outer surface.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Although more used herein housing 1, line outlet 2, adjusting knob 3, rotary lid 4, pointer 5, gear ring 6,
First gear 7, second gear 8, the 3rd gear 9, the 4th gear 10, the 5th gear 11, coil 12, ratchet 13, ratchet 14, duplex
The terms such as position button 15, telescopic key 16, flexible tongue body 17, but it is not precluded from the possibility using other terms.Use these
Term is used for the purpose of more easily describing and explaining essence of the present utility model；It is construed as any additional limit
System is all disagreed with the utility model spirit.
Claims (10)
1. a kind of pet tractor for limiting pull rope extension elongation, including housing (1) and it is arranged on leading in housing (1)
Messenger, there is the line outlet (2) for stretching out pull rope, it is characterised in that described housing (1) is provided with described housing (1)
The adjusting knob (3) for the length scale that adjustable pull rope stretches out out of housing (1), the outside week of described adjusting knob (3)
To provided with length scale, the reading of described length scale is n times of physical length, and n is the real number more than 1, described housing
(1) the gear structure of n times of the regulation efficiency amplification of adjusting knob (3), described housing (1) interior energy can be prevented by being provided with
Pull rope stretches out the position limiting structure of housing (1).
2. the pet tractor according to claim 1 for limiting pull rope extension elongation, it is characterised in that described change
Fast drive mechanism includes the gear ring (6) for being arranged on housing (1) and being rotated coaxially with adjusting knob (), and described gear ring (6) passes through
Engage first gear (7) and second gear (8) successively and be connected with the 3rd gear (9), when described gear ring (6) rotates, institute
First gear (7), second gear (8), the linear velocity of the 3rd gear (9) stated are identical, and the 3rd described gear (9) has and it
The 4th coaxial gear (10), the 4th described gear (10) engage with the 5th gear (11), the 5th described gear (11) and
The coil (12) of winding pull rope rotates coaxially.
3. the pet tractor according to claim 2 for limiting pull rope extension elongation, it is characterised in that described tooth
Circle (6) radius is a times of adjusting knob (3) radius, and described gear ring (6) radius is b times of the 3rd gear (9) radius, described
The 4th gear (10) radius be c times of the 3rd gear (9) radius, the 4th described gear (10) radius is the 5th gear (11)
D times, coil (12) radius is e times of the 5th gear (11) radius.
4. the pet tractor according to claim 3 for limiting pull rope extension elongation, it is characterised in that a, b, c, d,
E is all the real number more than 1.
5. the pet tractor according to claim 4 for limiting pull rope extension elongation, it is characterised in that a*c*e=
n。
6. according to the pet tractor for limiting pull rope extension elongation described in claim 1-5 any one, its feature exists
In, described position limiting structure include with coil (12) axial restraint and the ratchet (13) that rotates coaxially, have in described housing (1)
Have and the ratchet (14) that ratchet (13) can only rotate clockwise is adapted and limited with ratchet (13).
7. the pet tractor according to claim 6 for limiting pull rope extension elongation, it is characterised in that described shell
There is the double button (15) of controllable ratchet (14) on body (1), when described double button (15) is pressed/ejected,
Described ratchet (14) disengaging/enter ratchet (13) where plane in.
8. according to the pet tractor for limiting pull rope extension elongation described in claim 1-5 any one, its feature exists
In there is telescopic key (16) on described housing (1), have inside described housing (1) and telescopic key (16) is fixed
Flexible tongue body (17), when described flexible tongue body (17) axially stretch into housing (1) it is interior when, be caught in the ratchets of ratchet (13) just
It is interior.
9. the pet tractor according to claim 8 for limiting pull rope extension elongation, it is characterised in that described stretches
Contracting tongue body (17) is provided with back-moving spring, and when not having external force, back-moving spring can pop into position flexible tongue body (17).
10. according to the pet tractor for limiting pull rope extension elongation described in claim 1-5 any one, its feature exists
In described adjusting knob (3) includes the rotary lid (4) for being arranged on housing (1) side, the appearance of rotary lid (4)
The pointer (5) mutually fixed with rotary lid (4) is radially provided with face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621368964.2U CN206620686U (en) | 2016-12-14 | 2016-12-14 | The pet tractor of pull rope extension elongation can be limited |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621368964.2U CN206620686U (en) | 2016-12-14 | 2016-12-14 | The pet tractor of pull rope extension elongation can be limited |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206620686U true CN206620686U (en) | 2017-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621368964.2U Active CN206620686U (en) | 2016-12-14 | 2016-12-14 | The pet tractor of pull rope extension elongation can be limited |
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| CN (1) | CN206620686U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112544484A (en) * | 2020-11-30 | 2021-03-26 | 武汉商学院 | Automatic retraction and extension teaching rope |
-
2016
- 2016-12-14 CN CN201621368964.2U patent/CN206620686U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112544484A (en) * | 2020-11-30 | 2021-03-26 | 武汉商学院 | Automatic retraction and extension teaching rope |
| CN112544484B (en) * | 2020-11-30 | 2022-03-01 | 武汉商学院 | Automatic retraction and extension teaching rope |
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