CN209467984U - A kind of slow cam mechanism of automatic hose reel - Google Patents
A kind of slow cam mechanism of automatic hose reel Download PDFInfo
- Publication number
- CN209467984U CN209467984U CN201821714072.2U CN201821714072U CN209467984U CN 209467984 U CN209467984 U CN 209467984U CN 201821714072 U CN201821714072 U CN 201821714072U CN 209467984 U CN209467984 U CN 209467984U
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- CN
- China
- Prior art keywords
- reel
- shaft
- hose
- ball
- leading
- 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 relates to a kind of tube rolling devices, more particularly, to a kind of slow cam mechanism of automatic hose reel.The slow cam mechanism of automatic hose reel, including the reel for convoluted hose, the shaft that is arranged at reel axis, hose is pierced by by the leading-out terminal of tube rolling device, free gap is provided between shaft and reel, the outer wall of shaft is provided with one section of position brake piece for protruding from shaft outer wall close to the side of leading-out terminal, the outer wall of shaft is provided with several location holes far from the side of leading-out terminal, the axis of location hole is located at the radial direction of shaft, positioning hole is provided with ball, is provided with spring between ball and the bottom surface of location hole.The utility model have can effectively slow down to hose retraction, to the rotation reduction of speed of reel, avoid causing the beneficial effects such as security risk due to reel high speed rotation.
Description
Technical field
The utility model relates to a kind of tube rolling devices, more particularly, to a kind of slow cam mechanism of automatic hose reel.
Background technique
Existing automatic hose reel provides power to reel by wind spring, realizes that reel resets, and then realize the volume of hose
Around.But during rotation of reel, the reseting elasticity that wind spring provides is larger, causes rotation of reel fast speed.Hose end
Pipette tips are easy to cause whipping during hose reeling, bring inconvenience to user.
Utility model content
Primarily directed to the above problem, providing one kind can effectively slow down, to reel to hose retraction the utility model
Rotation reduction of speed, avoid the slow cam mechanism that the automatic hose reel of security risk is caused due to reel high speed rotation.
The purpose of this utility model is mainly to be achieved by following proposal: a kind of slow retraction machine of automatic hose reel
Structure, including the reel for convoluted hose, the shaft that is arranged at reel axis, hose is pierced by by the leading-out terminal of tube rolling device, is turned
Free gap is provided between axis and reel, the outer wall of shaft is provided with one section close to the side of leading-out terminal and protrudes from shaft outer wall
Position brake piece, the outer wall of shaft is provided with several location holes far from the side of leading-out terminal, and the axis of location hole, which is located at, to be turned
The radial direction of axis, positioning hole are provided with ball, are provided with spring between ball and the bottom surface of location hole.Shaft and reel it
Between be provided with free gap, when hose reeling is on reel, reel is formed bias by gravity and shaft.When hose from
When leading-out terminal is drawn out, the pulling force that pipe crimping is subject to is decomposed into tangential power and upward pulling force, at this point, reel is lifted upwards,
Free gap of the shaft between the side and reel of leading-out terminal is larger, is not in contact between reel and position brake piece,
And be under pressure between side and reel of the shaft far from leading-out terminal, ball is pressed into positioning hole and compressed spring by this, this
When, shaft forms point contact by ball with reel.When rotation of reel, the rolling of ball be can reduce between shaft and reel
Frictional force, be convenient for rotation of reel, convenient for hose pull out.When needing convoluted hose, wind spring drives reel to reversely rotate, hose
On reel, at this point, the pulling force hour that reel is subject to, the gravity of reel itself increases, and spring pushes ball to press outward
Reel, and position brake piece and reel of the shaft close to leading-out terminal side are in contact and are formed extruding, utilize position brake piece
Frictional force between reel internal diameter reduces the revolving speed of reel, avoids reel high speed rotation, realizes the slow retraction of hose.
Preferably, the width of the free gap is more than or equal to the thickness of position brake piece.The width of free gap
More than or equal to the thickness of position brake piece, i.e., when reel is concentric with shaft, the frictional force between position brake piece and reel becomes
It is bordering on zero.
Preferably, the positioning pore cross section is in "eight" shape, the diameter of location hole is from shaft outer edge to shaft
Axis direction has incremented by successively, and the diameter of ball is more than or equal to the minimum-value aperture of location hole.Positioning pore cross section is in "eight" shape, fixed
Position hole diameter have from shaft outer edge to the axis direction of shaft it is incremented by successively, i.e., the bore of location hole by shaft axis side
Successively decrease to the edge of shaft, when the diameter of ball is more than or equal to the minimum-value aperture of location hole, can be avoided ball from location hole
Inside easily be detached from, using location hole to ball be oriented to, when ball is under pressure, positioning hole can be retracted, when ball not
When by pressure, spring can push ball to protrude from location hole.
Therefore, a kind of slow cam mechanism of automatic hose reel of the utility model has following advantages: when rotation of reel,
The rolling of ball can reduce the frictional force between shaft and reel, be convenient for rotation of reel, pull out convenient for hose.When needing to wind
When hose, wind spring drives reel to reversely rotate, and hose reeling is on reel, at this point, the pulling force hour that reel is subject to, reel itself
Gravity increase, spring pushes ball to press reel outward, and position brake piece and reel of the shaft close to leading-out terminal side are sent out
It is raw to contact and formed extruding, the revolving speed of reel is reduced using the frictional force between position brake piece and reel internal diameter, avoids reel
High speed rotation realizes the slow retraction of hose.
Detailed description of the invention
Attached drawing 1 is a kind of structural schematic diagram of the utility model；
Attached drawing 2 is the cross-sectional view at reel axis；
Attached drawing 3 is cross-sectional view when reel axis is in hose pull-out；
Attached drawing 4 is cross-sectional view when reel axis is in hose reeling.
It illustrates: 1- reel, 2- hose, 3- shaft, 4- position brake piece, 5- location hole, 6- spring, 7- ball, 8-
Leading-out terminal, the free gap 9-.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment 1: as shown in Figure 1, 2, a kind of slow cam mechanism of automatic hose reel, including the volume for convoluted hose 2
Disk 1, the shaft 3 being arranged at reel axis, hose are pierced by by the leading-out terminal 8 of tube rolling device, and work is provided between shaft and reel
Dynamic gap 9, the outer wall of shaft are provided with one section of position brake piece 4 for protruding from shaft outer wall, shaft close to the side of leading-out terminal
Outer wall the side of leading-out terminal is provided with several location holes 5, the axis of location hole is located at the radial direction of shaft, positioning
It is provided with ball 7 in hole, spring 6 is provided between ball and the bottom surface of location hole.The width of free gap is more than or equal to positioning
The thickness of brake block.Positioning pore cross section is in "eight" shape, and the diameter of location hole is had from shaft outer edge to the axis direction of shaft
Incremented by successively, the diameter of ball is more than or equal to the minimum-value aperture of location hole.
Free gap is provided between shaft and reel, when hose reeling is on reel, reel by gravity with
Shaft forms bias.When hose is drawn out from leading-out terminal, the pulling force that pipe crimping is subject to is decomposed into tangential power and upward pulling force,
At this point, reel is lifted upwards, free gap of the shaft between the side and reel of leading-out terminal is larger, as shown in figure 3, volume
It is not in contact between disk and position brake piece, and is under pressure between side and reel of the shaft far from leading-out terminal, this will
Ball is pressed into positioning hole and compressed spring, at this point, shaft and reel form point contact by ball.When rotation of reel, rolling
The rolling of pearl can reduce the frictional force between shaft and reel, be convenient for rotation of reel, pull out convenient for hose.It is soft when needing to wind
Guan Shi, wind spring drive reel to reversely rotate, and hose reeling is on reel, at this point, the pulling force hour that reel is subject to, as shown in figure 4,
The gravity of reel itself increases, and spring pushes ball to press reel outward, and shaft is close to the position brake piece of leading-out terminal side
Extruding is in contact and formed with reel, and the revolving speed of reel is reduced using the frictional force between position brake piece and reel internal diameter,
Reel high speed rotation is avoided, realizes the slow retraction of hose.The width of free gap is more than or equal to the thickness of position brake piece, that is, works as
When reel is concentric with shaft, the frictional force between position brake piece and reel levels off to zero.Positioning pore cross section is in "eight" shape, fixed
Position hole diameter have from shaft outer edge to the axis direction of shaft it is incremented by successively, i.e., the bore of location hole by shaft axis side
Successively decrease to the edge of shaft, when the diameter of ball is more than or equal to the minimum-value aperture of location hole, can be avoided ball from location hole
Inside easily be detached from, using location hole to ball be oriented to, when ball is under pressure, positioning hole can be retracted, when ball not
When by pressure, spring can push ball to protrude from location hole.
It should be understood that the embodiment is merely to illustrate the utility model rather than limitation the scope of the utility model.Furthermore
It should be understood that after reading the content taught by the present invention, those skilled in the art can make the utility model various
Change or modification, these equivalent forms also fall within the scope of the appended claims of the present application.
Claims (3)
1. a kind of slow cam mechanism of automatic hose reel, including for convoluted hose reel, be arranged at reel axis and turn
Axis, hose are pierced by by the leading-out terminal of tube rolling device, which is characterized in that be provided with free gap between shaft and reel, shaft it is outer
Wall is provided with one section of position brake piece for protruding from shaft outer wall close to the side of leading-out terminal, and the outer wall of shaft is far from leading-out terminal
Side is provided with several location holes, and the axis of location hole is located at the radial direction of shaft, and positioning hole is provided with ball, ball
Spring is provided between the bottom surface of location hole.
2. a kind of slow cam mechanism of automatic hose reel according to claim 1, which is characterized in that the free gap
Width be more than or equal to position brake piece thickness.
3. a kind of slow cam mechanism of automatic hose reel according to claim 1, which is characterized in that the location hole is disconnected
Face is in "eight" shape, and the diameter of location hole has incremented by successively from shaft outer edge to the axis direction of shaft, and the diameter of ball is big
In the minimum-value aperture for being equal to location hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821714072.2U CN209467984U (en) | 2018-09-30 | 2018-09-30 | A kind of slow cam mechanism of automatic hose reel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821714072.2U CN209467984U (en) | 2018-09-30 | 2018-09-30 | A kind of slow cam mechanism of automatic hose reel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209467984U true CN209467984U (en) | 2019-10-08 |
Family
ID=68086372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821714072.2U Expired - Fee Related CN209467984U (en) | 2018-09-30 | 2018-09-30 | A kind of slow cam mechanism of automatic hose reel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209467984U (en) |
-
2018
- 2018-09-30 CN CN201821714072.2U patent/CN209467984U/en not_active Expired - Fee Related
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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: 20191008 Termination date: 20200930 |