CN101734384B - Automatic take-up tensioner - Google Patents
Automatic take-up tensioner Download PDFInfo
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- CN101734384B CN101734384B CN200910260131A CN200910260131A CN101734384B CN 101734384 B CN101734384 B CN 101734384B CN 200910260131 A CN200910260131 A CN 200910260131A CN 200910260131 A CN200910260131 A CN 200910260131A CN 101734384 B CN101734384 B CN 101734384B
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Abstract
The invention provides an automatic take-up tensioner, belongs to the technical field of machinery, and solves the problem that a brake baffle may be stuck when the conventional automatic take-up tensioner swings. The automatic take-up tensioner comprises a belt axis, a bracket, a handle, a barrier component 1 and a barrier component 2, wherein a swirling spring is arranged between the bracket and the belt axis; the belt axis has a trend of moving to the direction of winding a binding strap under the action of the swirling spring; and the barrier component 2 is fixedly connected with a damping mechanism which acts on ratchet wheels. When the tensioner is in an ungirding state, the damping mechanism acts on the ratchet wheels, and the damping force of the damping mechanism is greater than the elastic action force of the swirling spring, thus, the damping mechanism can eliminate the damping force against the ratchet wheels through exogenous action. The automatic take-up tensioner has the advantages of low cost, little occupied space, high using stability and compact and beautiful structure.
Description
Technical field
The invention belongs to field of mechanical technique, relate to a kind of strainer that is used for restraint of loads, particularly a kind of automatic belt retracted tensioning device.
Background technology
Strainer is widely used as a kind of binding tools.In use, especially large cargo is bundled,, so just caused take-up loaded down with trivial details, the lower problem of binding efficiency ratio because bundling belt is long.
In order to address the above problem; Chinese patent CN2936490Y provides a kind of " automatic belt retracted tensioning device "; It is by casing and be hinged on handle on the casing etc. through main shaft and form; Being respectively equipped with big baffle assembly and small front apron assembly on the handle He on the casing, also be provided with the brake baffle plate in addition, the effect of brake baffle plate is to realize fast or take-up at a slow speed.
The brake baffle plate of above-mentioned patent is hinged on the casing, and the big baffle plate on the big baffle plate assembly can be swung, after big baffle plate swing; Through its extruding brake baffle plate; Make the brake baffle plate around its hinged place swing, the brake baffle plate after the swing can be broken away from by the ratchet place, thereby realizes quick take-up.
Can find out; Though above-mentioned strainer can be realized quick take-up; But because the brake baffle plate all is to be hinged on frame and the handle with big baffle plate, possibly exist stuck phenomenon in the feasible brake of the such structure baffle plate swing process, influence the normal use of strainer.
Summary of the invention
The objective of the invention is provides a kind of a kind of automatic belt retracted tensioning device simple in structure, easy to use to existing in prior technology the problems referred to above.
The object of the invention can be realized through following technical proposal: a kind of automatic belt retracted tensioning device; Comprise tape spool, support, handle, barrier assembly one, barrier assembly two, described handle is hinged on the support through tape spool, and tape spool is provided with the ratchet that is connected with it and the bundling belt on the tape spool; Above-mentioned barrier assembly one is positioned on the support and barrier assembly one can be resisted against on the ratchet; Barrier assembly two is arranged at the handle place and barrier assembly two can be resisted against on the ratchet, and pulls when whole strainer being in tighten up state when handle, and barrier assembly one all is resisted against on the ratchet with barrier assembly two; When strainer is in loose carrier state; Block piece one all breaks away from ratchet with block piece two, it is characterized in that, is provided with a volute spring between described support and the tape spool; And tape spool has to rolling bundling belt direction rotation trend under the effect of this volute spring; Be fixed with the damping mechanism that acts on the ratchet on the barrier assembly two, when strainer is in loose carrier state damping mechanism act on the ratchet and the dumping force of damping mechanism greater than the elastic acting force of volute spring, can make this damping mechanism eliminate dumping force through the external force effect to ratchet.
In this strainer; After moving, handle can make whole strainer be in take-up state or loose carrier state; Barrier assembly one all is resisted against on the ratchet with barrier assembly two when tightening up state being in, and tape spool can't rotate, and the bundling belt on the tape spool also is fixed and can't stretches out; Barrier assembly one all breaks away from ratchet with barrier assembly two when being in loose carrier state, and this moment, the rotation at the effect bottom ratchet wheel of damping mechanism still was limited, and when applying a dumping force greater than damping mechanism, ratchet can rotate, thereby realizes take-up at a slow speed.The operation damping mechanism makes it break away from ratchet when needing quick take-up, and tape spool is unrestricted, thereby makes that tape spool can twirl.
In above-mentioned automatic belt retracted tensioning device, described volute spring is arranged at the tape spool end, and the two ends of volute spring act on respectively on tape spool end and the support.
Under the elastic force effect of volute spring, the elastic acting force of volute spring applies a power all the time to tape spool, the trend that the oriented take-up direction of tape spool is rotated under the effect of this power.
In above-mentioned automatic belt retracted tensioning device, be fixed with housing on the described support, in the cavity of above-mentioned volute spring between housing and support.
Make volute spring be positioned at an osed top cavity through such structure, extraneous magazine or dirt just can not get into the volute spring place.
In above-mentioned automatic belt retracted tensioning device; Described barrier assembly two comprises barrier sheet two, spring two and is arranged at the pilot hole two that is strip on the handle; Barrier sheet two is positioned at pilot hole two places and can moves along pilot hole two; Above-mentioned spring two is between barrier sheet two and handle, and barrier sheet two has the trend that is resisted against on the ratchet under the elastic force effect of spring two.
Barrier sheet two can move along pilot hole two under the elastic force effect of spring two, and under this spring force effect, barrier sheet two is embedded on the above-mentioned ratchet.
In above-mentioned automatic belt retracted tensioning device; Described damping mechanism is the elastic card that is connected on the barrier sheet two; And elastic card is embedded on the ratchet when strainer is in loose carrier state, and said dumping force is to form through the elastic acting force that elastic card acts on the ratchet.
When strainer is in loose carrier state; Barrier sheet two break away from ratchets but this moment elastic card also be resisted against on the ratchet; The dumping force of damping mechanism is exactly that the elastic acting force of elastic card forms, and makes its tape spool of strainer when being in loose carrier state still can not rotate through this dumping force.
In above-mentioned automatic belt retracted tensioning device, described damping mechanism also comprises the press section of protrusion on the barrier sheet two.
Make barrier sheet two by breaking away from the ratchet, elastic card can be along with together breaking away from.The pushing press section can be realized in this process.
In above-mentioned automatic belt retracted tensioning device, have bending on the described elastic card, the two ends of bending place are respectively connecting portion and contact part, and connecting portion is connected in barrier sheet two bottoms through rivet, and contact part is resisted against on the above-mentioned ratchet.
When smooth being close to two last time of barrier sheet of connecting portion; Can make both firm linking together through rivet; Simultaneously, owing to have the bending place on the elastic card, so the contact part of elastic card has the trend of a roof pressure when being resisted against on the ratchet all the time to ratchet.
In above-mentioned automatic belt retracted tensioning device, described elastic card is arcuation.
The elastic card that is arcuation also can have a roof pressure application force to ratchet all the time, makes ratchet have the trend of rotation.
In above-mentioned automatic belt retracted tensioning device; Described barrier assembly one comprises barrier sheet one, spring one and is arranged at the pilot hole one that is strip on the support; Barrier sheet one is positioned at pilot hole one place and can moves along pilot hole one; Above-mentioned spring one is between barrier sheet and support, and barrier sheet one has the trend that is resisted against on the ratchet under the elastic force effect of spring one.
Barrier sheet one can move along pilot hole one under the elastic force effect of spring one, and under this spring force effect, barrier sheet one is embedded on the above-mentioned ratchet.
Compared with prior art, this automatic belt retracted tensioning device is because the elastic card that on barrier sheet two, is connected just, therefore, it relatively simple for structure, cost is lower.
Simultaneously, in use elastic card is all the time along with barrier sheet two moves, and therefore, it stuck phenomenon can not occur, and stability in use is than higher.In addition, elastic card is connected in barrier sheet two bottoms through rivet, and elastic card not only is connected firmly, and the outside existence that can't observe elastic card, and therefore, it does not take up room, and compact conformation is attractive in appearance.
Description of drawings
Fig. 1 is the perspective view of this automatic belt retracted tensioning device.
Fig. 2 is the sectional structure scheme drawing of this automatic belt retracted tensioning device.
Fig. 3 is the sectional structure scheme drawing at volute spring place in this automatic belt retracted tensioning device.
Among the figure, 1, support; 1a, pilot hole one; 2, tape spool; 3, handle; 3a, pilot hole two; 4, barrier assembly one; 4a, barrier sheet one; 4b, spring one; 5, barrier assembly two; 5a, barrier sheet two; 5a1, press section; 5b, spring two; 6, volute spring; 7, housing; 8, elastic card; 8a, connecting portion; 8b, contact part; 9, ratchet.
The specific embodiment
As depicted in figs. 1 and 2, this automatic belt retracted tensioning device is made up of tape spool 2, support 1, handle 3, barrier assembly 1, barrier assembly 25 and volute spring 6 etc., and it is a kind of device that is used for restraint of loads.
Be provided with the barrier assembly 1 that can be resisted against on the ratchet 9 on the support 1, handle 3 is provided with the barrier assembly 25 that can be resisted against on the ratchet 9.Barrier assembly 1 comprises barrier sheet one 4a, spring one 4b and is arranged at pilot hole one 1a that is strip on the support; Barrier sheet one 4a is positioned at pilot hole one 1a place and can moves along pilot hole one 1a; Above-mentioned spring one 4b is between barrier sheet one 4a and support 1, and barrier sheet one 4a has the trend that is resisted against on the ratchet 9 under the elastic force effect of spring one 4b.
Barrier assembly 25 comprises barrier sheet two 5a, spring two 5b and is arranged at pilot hole two 3a that are strip on the handle 3; Barrier sheet two 5a are positioned at pilot hole two 3a places and can move along pilot hole two 3a; Above-mentioned spring two 5b are between barrier sheet two 5a and handle 3, and barrier sheet two 5a have the trend that is resisted against on the ratchet 9 under the elastic force effect of spring two 5b.
As shown in Figure 3, volute spring 6 is arranged between support 1 and the tape spool 2, and volute spring 6 is in tape spool 2 ends, and the two ends of volute spring 6 act on respectively on tape spool 2 ends and the support 1.In the present embodiment, be fixed with housing 7 on the support 1, form a cavity between housing 7 and the support 1, volute spring 6 is located in the cavity place that forms between housing 7 and the support 1.Tape spool 2 has the trend of rotating to the take-up direction under the effect of this volute spring 6.
Be fixed with damping mechanism on the barrier assembly 25, damping mechanism acts on the ratchet 9.Damping mechanism is the elastic card 8 that is connected on the barrier sheet 25, and elastic card 8 is embedded on the ratchet 9 when strainer is in loose carrier state, and said dumping force is to form through the elastic acting force that elastic card 8 acts on the ratchet 9.In the present embodiment, elastic card 8 middle parts have bending, and the two ends of bending place are respectively connecting portion 8a and contact part 8b, and connecting portion 8a is connected in barrier sheet two 5a bottoms through rivet, and contact part 8b is resisted against on the above-mentioned ratchet 9.Certainly, according to actual conditions, it also is feasible that elastic card 8 is arcuation.
When strainer is in when tightening up state, barrier sheet one 4a is being resisted against under the effect of spring one 4b on the ratchet 9, and barrier sheet 25 is being resisted against on the ratchet 9 under the effect of spring two 5b.At this moment, the bundling belt on the tape spool 2 can't stretch out, and that is to say that it is in normal mode of operation.
When strainer was in relaxation state, barrier sheet one 4a and barrier sheet two 5a were pushed in handle 3 the inners, and the elastic force that makes barrier sheet one 4a overcome spring one 4b is shifted out by ratchet 9 places, and the elastic force that makes barrier sheet two 5a overcome spring two 5b is shifted out by ratchet 9 places.At this moment, ratchet 9 dampened mechanisms are to its dumping force effect that applies and volute spring 6 application force to it.
When using this strainer, little radian back and forth pull handle 3, in the continuous unidirectional rotation of the effect bottom ratchet wheel of barrier assembly two and barrier assembly 19, tape spool 2 is along with the binding on the tape spool 2 in the unidirectional rotation process is just drawn in.
When strainer is in when tightening up state, barrier assembly one all is embedded on the ratchet 9 with barrier assembly two, and ratchet 9 is pinned.Bundling belt also can't stretch out, thereby goods is bundled firmly, that is to say that strainer is in running order at this moment.
In the time of need bundling belt being drawn in, that is to say loose carrier state, pull handle 3 and barrier sheet one 4a and barrier sheet two 5a are pushed open, make barrier sheet one 4a and barrier sheet two 5a all break away from ratchet through the cam structure of handle 3 ends.At this moment, the contact part of elastic card 8 is resisted against on the ratchet 9, because the elastic force of elastic card 8 is greater than the elastic force of volute spring 6, so ratchet 9 can not rotate, but when applying a power greater than elastic card 8, tape spool 2 also can rotate, thereby realizes take-up at a slow speed.When needing quick take-up; Pushing barrier sheet two 5a make barrier sheet two 5a drive elastic card 8 and together bounce back, and elastic card 8 breaks away from ratchet 9; 2 elastic acting forces of receiving volute spring 6 of tape spool this moment make tape spool 2 fast speedes rotate to the take-up direction under the effect of this power.Thereby bundling belt is drawn in fast.
In addition, promotion barrier sheet two 5a for ease have the press section 5a1 of a protrusion on the top of barrier sheet two 5a.
Claims (8)
1. an automatic belt retracted tensioning device comprises tape spool, support, handle, barrier assembly one, barrier assembly two, and described handle is hinged on the support through tape spool; Tape spool is provided with the ratchet that is connected with it and the bundling belt on the tape spool; Above-mentioned barrier assembly one is positioned on the support and barrier assembly one can be resisted against on the ratchet, and barrier assembly two is arranged at the handle place and barrier assembly two can be resisted against on the ratchet, and pulls when whole strainer being in tighten up state when handle; Barrier assembly one all is resisted against on the ratchet with barrier assembly two; When strainer was in loose carrier state, block piece one all broke away from ratchet with block piece two, it is characterized in that; Be provided with a volute spring between described support and the tape spool; And tape spool has to rolling bundling belt direction and rotates trend under the effect of this volute spring, is fixed with the damping mechanism that acts on the ratchet on the barrier assembly two, when strainer is in loose carrier state damping mechanism act on the ratchet and the dumping force of damping mechanism greater than the elastic acting force of volute spring; Can make this damping mechanism eliminate dumping force through the external force effect to ratchet; Described damping mechanism is the elastic card that is connected on the barrier sheet two, and elastic card is embedded on the ratchet when strainer is in loose carrier state, and said dumping force is to form through the elastic acting force that elastic card acts on the ratchet.
2. automatic belt retracted tensioning device according to claim 1 is characterized in that described volute spring is arranged at the tape spool end, and the two ends of volute spring act on respectively on tape spool end and the support.
3. automatic belt retracted tensioning device according to claim 2 is characterized in that, is fixed with housing on the described support, in the cavity of described volute spring between housing and support.
4. according to claim 1 or 2 or 3 described automatic belt retracted tensioning devices; It is characterized in that; Described barrier assembly two comprises barrier sheet two, spring two and is arranged at the pilot hole two that is strip on the handle; Barrier sheet two is positioned at pilot hole two places and can moves along pilot hole two, and described spring two is between barrier sheet two and handle, and barrier sheet two has the trend that is resisted against on the ratchet under the elastic force effect of spring two.
5. automatic belt retracted tensioning device according to claim 4 is characterized in that, described damping mechanism also comprises the press section of protrusion on the barrier sheet two.
6. automatic belt retracted tensioning device according to claim 5; It is characterized in that having bending on the described elastic card, the two ends of bending place are respectively connecting portion and contact part; Connecting portion is connected in barrier sheet two bottoms through rivet, and contact part is resisted against on the above-mentioned ratchet.
7. automatic belt retracted tensioning device according to claim 5 is characterized in that described elastic card is arcuation.
8. according to claim 1 or 2 or 3 described automatic belt retracted tensioning devices; It is characterized in that; Described barrier assembly one comprises barrier sheet one, spring one and is arranged at the pilot hole one that is strip on the support; Barrier sheet one is positioned at pilot hole one place and can moves along pilot hole one, and described spring one is between barrier sheet and support, and barrier sheet one has the trend that is resisted against on the ratchet under the elastic force effect of spring one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910260131A CN101734384B (en) | 2009-12-25 | 2009-12-25 | Automatic take-up tensioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910260131A CN101734384B (en) | 2009-12-25 | 2009-12-25 | Automatic take-up tensioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101734384A CN101734384A (en) | 2010-06-16 |
| CN101734384B true CN101734384B (en) | 2012-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910260131A Active CN101734384B (en) | 2009-12-25 | 2009-12-25 | Automatic take-up tensioner |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101875326B (en) * | 2010-07-07 | 2013-02-13 | 浙江双友物流器械股份有限公司 | Binder |
| CN102602324A (en) * | 2012-03-05 | 2012-07-25 | 中国人民解放军总后勤部军事交通运输研究所 | Tensioner of binding strap type securing device |
| CN104913690B (en) * | 2015-05-25 | 2017-03-08 | 浏阳市五一科技机械有限公司 | A kind of bracing means in a row for combined firework group basin |
| CN105235933A (en) * | 2015-10-31 | 2016-01-13 | 江苏润阳信息产业有限公司 | Automatic tightening device with rolling and unrolling control function |
| CN108750174B (en) * | 2018-08-22 | 2024-06-14 | 张卫 | Portable ligature ware |
| CN110949725A (en) * | 2019-12-12 | 2020-04-03 | 张家港金豹五金科技有限公司 | Tensioner |
| CN113043940B (en) * | 2021-03-10 | 2022-08-30 | 万智慧 | Automatic tightening tensioner |
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2009
- 2009-12-25 CN CN200910260131A patent/CN101734384B/en active Active
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| CN101734384A (en) | 2010-06-16 |
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