CN205602864U - Novel winder brake structure - Google Patents
Novel winder brake structure Download PDFInfo
- Publication number
- CN205602864U CN205602864U CN201620242687.4U CN201620242687U CN205602864U CN 205602864 U CN205602864 U CN 205602864U CN 201620242687 U CN201620242687 U CN 201620242687U CN 205602864 U CN205602864 U CN 205602864U
- Authority
- CN
- China
- Prior art keywords
- brake
- ratchet
- pushing tow
- wheel hub
- tow parts
- 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
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Abstract
The utility model discloses a brake structure of winder, including ratchet pawl formula brake subassembly and buffering subassembly, ratchet pawl formula brake subassembly pushes away the part by the top and wheel hub constitutes, the top pushes away the part and contains a pawl structure and a buffer structure, buffer structure is the elastic construction that is extended out by the pawl. The utility model discloses a simple institutional advancement has realized having brake and buffer function simultaneously on the brake subassembly, has not only simplified the structure but also practiced thrift the cost, slows down the brake impact force effectively, and increase of service life prevents the brake inefficacy.
Description
Technical field
This utility model relates to a kind of brake structure, particularly relates to the brake structure of a kind of winder.
Background technology
At present, the brake function of the winder on vacuum cleaner can be realized by two kinds of brake structures, a kind of brake rod-type (or claiming friction type brake) being frictionally to take turns buffering, one is ratchet wheel pawl type (or claiming ratchet-type brake), is respectively arranged with drawback between both.
Chinese utility model patent 200920201463.9 each discloses a kind of winder brake structure, uses the brake structure of friction-type.Line wheel assembly is provided with rubbing surface, when this rubbing surface coordinates with friction pulley, plays braking action, and making line take turns may only one-directional rotation.In the ordinary course of things, brake lever makes friction pulley contact with rubbing surface by spring, and braking action occurs.When needing release brake, pressing brake lever one end, overcome the active force of spring, friction pulley departs from rubbing surface, and making line take turns can be freely rotatable with any direction.Produce amount of heat during vacuum cleaner work and accumulate in inside machine, therefore it is often found that the friction pulley excessive deformation of rubber making, lose friction, capability, it is impossible to realize braking action.If friction pulley or rubbing surface surface are by oil pollution, friction, capability also can be lost.
Chinese invention patent 200610086344.4 discloses a kind of winder brake structure, uses ratchet-type brake.This brake includes the ratchet on pawl-and-gearing, and wherein this brake also includes the parts of ratchet radially pushing tow, these pushing tow parts make ratchet in the ordinary course of things with ratchet engagement, play braking action, this wheel hub may only one-directional rotation.When needing release brake, press pushing tow parts, then ratchet is disengaged from ratchet, and making line take turns can be freely rotatable with any direction.Winder typically uses scroll spring to store power, and quickly, rolling power is the biggest for rolling speed, and therefore, during the brake of ratchet-type brake structure, impact force is very big, and ratchet and ratchet are typically made of plastics, it is easy to broken.It addition, the line of ratchet-type brake can make a noise when taking turns one-directional rotation.
Chinese invention patent 201110270914.6 discloses a kind of winder brake structure, use pawl ratchet braking and friction pulley brakes the brake structure that two ways combines, this brake includes the ratchet on pawl-and-gearing, and wherein this brake also includes the parts of ratchet radially pushing tow；Rubbing surface on friction pulley that this brake also includes being arranged on brake lever side and wheel hub；When friction pulley contacts with annular friction face, described friction type brake assembly is in braking state；When described friction pulley and described annular friction emaciated face from time, described friction type brake assembly is in released state；When arbitrary in described ratchet wheel pawl type brake assemblies and described friction type brake assembly is in braking state, described winder is in braking state.This invention achieves double-brake function, not only ensure that braking quality but also extend service life of braking.But its structure is relative complex, the production of part, installation the most more very complicated.
Utility model content
In view of the foregoing, this utility model provides a kind of Novel reel brake structure, and impulsive force when this brake structure can either reduce brake improves the life-span and can prevent again brake failure, and structure is the simplest simultaneously, part manufactures installation difficulty to be reduced, cost-effective.
To achieve these goals, this utility model provides the brake structure of a kind of winder, and it includes that pawl ratchet formula brake assemblies and Buffer Unit, described ratchet wheel pawl type brake assemblies are made up of pushing tow parts and wheel hub, the pawl structures of described pushing tow parts is brake position, and buffer structure is buffering position；Described brake position can be ratchet-shaped, trapezoidal or form of gear tooth；Described buffer structure is the elastic construction extended out by ratchet.Having annular ratchets on described wheel hub, wheel hub brake position is formed on annular ratchets.
In preferred embodiment of the present utility model, wherein when winder brakes, the buffering position of described pushing tow parts first contacts with described wheel hub brake position, entering brake buffer stage, then as hub rotation, buffering position starts compression under the effect of wheel hub brake position, the brake position of pushing tow parts starts to contact with hub ratchet, now under the elastic force effect of wheel hub Buffer Unit, speed starts to slow down, and described pawl ratchet formula brake assemblies enters braking state.
Therefore, this utility model is by simple structure, the buffer unit with elastic construction is integrated into an entirety with the pawl component playing braking action, both rubber wheel had been efficiently solved easily by thermal failure, pawl ratchet easily impacts the excessive disadvantage causing easy corrupted because of brake, decreases amount of parts simultaneously, simplifies structure, reducing cost, production and processing is more easy to realize.
Accompanying drawing explanation
Fig. 1 is this utility model wheel hub schematic perspective view；
Fig. 2 is this utility model pushing tow parts schematic perspective view；
Fig. 3 is this utility model wheel hub brake bit architecture schematic diagram；
Fig. 4 is this utility model pushing tow parts structural representation；
Detailed description of the invention
Fig. 1 and Fig. 2 is wheel hub schematic perspective view and pushing tow parts schematic perspective view respectively.As it can be seen, the brake structure of winder of the present utility model be distributed in respectively on the annular ratchets on wheel hub 1 and pushing tow parts 2 on.
Fig. 3 is brake structure schematic diagram on wheel hub 1, on the annular ratchets 11 on wheel hub 1 formed wheel hub brake position, on the annular ratchets 11 of wheel hub 1 should at least one brake position.It is preferred that three wheel hub brake positions can be arranged, it is distributed at the trisection point of annular ratchets.
Fig. 4 is pushing tow parts structural representation, and pushing tow parts 2 have brake position 21 and buffering position 22.Brake position can be ratchet-shaped, trapezoidal or form of gear tooth, and buffering position is the elastic construction extended out by ratchet.
Brake structure of the present utility model unlocks when pressing pushing tow parts, and cable is taken in line wheel assembly.When pushing tow parts upspring under the action of the spring return to initial position time, from released state enter braking state.In the process, on pushing tow parts 2, brake buffering position 22 first contacts on wheel hub brake position 12, is Elastic Contact, plays the effect of buffering between wheel hub brake position 12 and buffering position 22；When the ratchet end face of pushing tow parts brake position 21 with wheel hub brake position 12 contacts, wheel hub stop motion, thus realize brake function.
It is preferred that when released state enters braking state, on pushing tow parts 2, brake buffering position 22 first first contacts with wheel hub brake position 12, plays the effect of buffering；Wheel hub is rotated further, when pushing tow parts brake position 21 contacts with the ratchet end face of wheel hub brake position 12, the running speed of wheel hub is the least, brake impact suffered by position is minimum, and the damage caused diminishes the most accordingly, thus extends the service life of brake structure on pushing tow parts.
Preferred embodiment of the present utility model described in detail above.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without creative work.Therefore, all technical staff in the art pass through the available technical scheme of logical analysis, reasoning, or a limited experiment on the basis of existing technology according to design of the present utility model, all should be in the protection domain being defined in the patent claims.
Claims (8)
1. a Novel reel brake structure, including: include ratchet wheel pawl type brake assemblies and Buffer Unit, it is characterized in that: described ratchet wheel pawl type brake assemblies is made up of pushing tow parts and wheel hub, described pushing tow parts comprise a pawl structures and a buffer structure.
Brake structure the most according to claim 1, it is characterised in that: the pawl structures of described pushing tow parts is brake position, and the buffer structure of described pushing tow parts is buffering position, and described buffer structure is the elastic construction extended out by brake position ratchet.
Brake structure the most according to claim 1, it is characterised in that: the brake position of described pushing tow parts is ratchet-shaped, trapezoidal or form of gear tooth.
Brake structure the most according to claim 1, it is characterised in that: the buffering position of described pushing tow parts is extended out by position of braking, for having effigurate elastic construction.
Brake structure the most according to claim 1, it is characterised in that: described wheel hub has annular ratchets, and described wheel hub brake position is formed on annular ratchets.
Brake structure the most according to claim 1, it is characterised in that: at least wheel hub brake position on the annular ratchets of described wheel hub.
Brake structure the most according to claim 1, wherein when the buffering position of described pushing tow parts contacts with described hub ratchet for brake buffer stage；It it is the brake stage when described pushing tow parts brake position contacts with hub ratchet.
Brake structure the most according to claim 1, wherein when winder brakes, described pushing tow component buffers position first contacts with described hub ratchet, entering brake buffer stage, along with the rotation of wheel hub, buffering position starts compression under the effect of hub ratchet, now wheel hub is under the elastic force effect of buffer structure, speed starts to slow down, and when pushing tow parts brake position starts to contact with hub ratchet, described pawl ratchet formula brake assemblies enters braking state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620242687.4U CN205602864U (en) | 2016-03-28 | 2016-03-28 | Novel winder brake structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620242687.4U CN205602864U (en) | 2016-03-28 | 2016-03-28 | Novel winder brake structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205602864U true CN205602864U (en) | 2016-09-28 |
Family
ID=56964759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620242687.4U Expired - Fee Related CN205602864U (en) | 2016-03-28 | 2016-03-28 | Novel winder brake structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205602864U (en) |
-
2016
- 2016-03-28 CN CN201620242687.4U patent/CN205602864U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160928 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |