CN203749940U - Flow controller - Google Patents
Flow controller Download PDFInfo
- Publication number
- CN203749940U CN203749940U CN201420121505.9U CN201420121505U CN203749940U CN 203749940 U CN203749940 U CN 203749940U CN 201420121505 U CN201420121505 U CN 201420121505U CN 203749940 U CN203749940 U CN 203749940U
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- CN
- China
- Prior art keywords
- roller
- shell
- chute
- gear
- flow controller
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- 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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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A flow controller comprises a shell, a rolling wheel and an elastic guide pipe. The top of the shell is open, the shell comprises a left shell body and a right shell body, the inner side wall of the left shell body and the inner side wall of the right shell body are respectively provided with a sliding chute, the pair of the sliding chutes are symmetric, the top and the bottom of each sliding chute are respectively provided with a rack, and the racks and the sliding chute of each shell body are integrally formed; the rolling wheel shaft parts on the two sides of the rolling wheel are respectively provided with a gear, the pair of the gears on the two sides are meshed with the racks in the sliding chutes, and the distance between the gear top of the upper rack on the top of the sliding chute and the gear root of the lower rack at the bottom of the sliding chute of each shell body is larger than the tip diameter of the corresponding gear; the elastic guide pipe penetrates through the shell and located between the bottom wall of the shell and the rolling wheel; the rolling wheel and the shell are assembled by the adoption of ultrasonic waves and are integrally inseparable. The flow controller has the advantages of being capable of guaranteeing flow control precision stably for a long time, convenient to store, little in pushing resistance, long in service life, environmentally friendly and the like.
Description
Technical field
This utility model relates to liquids and gases flow-control field, is specifically related to a kind of fluid flow conduits by variable compression shape and controls the controller of flow.
Background technology
The flow controller generally using at present, generally formed by housing, roller and elastic catheter, the inwall of housing both sides is provided with a pair of chute claiming toward each other, roller is provided with roller shaft, roller shaft two ends are located at respectively in described a pair of chute, elastic catheter passes described housing, and between shell bottom wall and roller.Roll by the detent projection being arranged in roller surface the elastic catheter being arranged in shell bottom wall, change the sectional area of elastic catheter, reach the object of adjusting flow velocity.In use, usually can there is slippage in roller with the roller flow controller that this simple dependence rubs fixing, thereby cause that the flow rate of liquid of non-artificial factor changes, and cannot ensure flow control accuracy.And because roller is in pushing, roller shaft and chute are sliding friction, resistance is large, and conduit and roller shaft wearing and tearing are large, just can not well control flow after wearing and tearing, need to again change, so be often only suitable for disposable use, not environmental protection.Meanwhile, misoperation also may make roller depart from shell.
Chinese patent 201010510551.4 discloses a kind of flow regulator of universal transfusion, comprises housing, roller and transfusion catheter, and housing comprises diapire and the pair of sidewalls of an inclination, and pair of sidewalls is provided with a pair of chute respect to one another; Roller is provided with a roller shaft, and the two ends of this roller shaft are located at respectively in described a pair of chute; Transfusion catheter passes housing, and between the diapire and described roller of housing; Be characterized in, the two ends of roller shaft are respectively equipped with a gear, and the top of this pair of chute is provided with tooth bar, and these two gears are meshed with the tooth bar at chute top respectively.The flow regulator of this Patent design need to lean on finger pressure that roller is pressed from top tooth bar in the time regulating flow velocity, after being pushed to precalculated position, gear unclamps roller, rely on the elastic force of conduit gear is rebounded and engage with tooth bar, make roller that unartificial movement can not occur, thereby guarantee the stable of transfusion speed.But in this course in the time that pressing roller pushes, gear and straight chute bottom friction are large, wheel odontotripsis is large, and service life is short; If not pressing roller but be directly pushed to assigned address by the engagement of gear and tooth bar, because tooth bar is located at chute top, it is contrary with rotating direction that roller pushes direction, just in time contrary with people's operating habit, if maloperation, easily makes gear teeth damage or stuck, use inconvenience.
Utility model content
The problem existing for overcoming prior art, the utility model proposes a kind of roller and can be fixed on assigned address, can be from line slip, and the flow controller of long service life.
The technical scheme that this utility model is dealt with problems is: a kind of flow controller, comprises housing, roller, elastic catheter.Described case top opening, comprises left shell and right shell, and left and right shell medial wall is provided with a pair of oblique chute claiming toward each other, and chute top is provided with upper rack, and bottom is provided with lower tooth bar, and tooth bar and chute are one-body molded; The roller shaft position, both sides of described roller is respectively equipped with a gear, and a pair of gear of both sides is meshed with the tooth bar in chute respectively, and the distance under the tooth top of chute top upper rack and bottom between the tooth root of tooth bar is greater than addendum circle diameter of gear.Be distributed with multiple detent projection evenly continuously on the excircle of roller; Described elastic catheter passes housing, and between the diapire and roller of housing.
In technique scheme, described roller and housing adopt ultrasound wave assembling, are the entirety can not be split.Roller can move along shell bottom wall and the common cavity limiting of sidewall between original position and closed position, and the movement of chute pair roller play the guiding role.
In technique scheme, the profile of tooth of described chute top upper rack has multiple, can be straight-tooth, can be even spike tooth or concavo-convex asperities, only needs in principle top upper rack can make gear form positioning resistance, and gear is fixing.Preferably the profile of tooth of upper rack is straight-tooth, and for making upper rack form positioning resistance to gear, its modulus and module are unequal.The lower tooth bar modulus in bottom equates with module.
When use, operator's gear that pressing roller makes both sides that press...withes one's finger engages with the lower tooth bar of chute bottom, and jog dial completes after flow rate regulation, unclamp roller, roller makes roller two side gears and the upper rack interlock of chute top form positioning resistance under the rebound effect of elastic catheter, and roller is firmly positioned to assigned address in housing.Fluid in elastic catheter can be realized the adjusting to zero flow velocity by Peak Flow Rate, and when roller is during in original position, elastic catheter is not subject to the compressing of roller, and the cross section of elastic catheter keeps naturalness, and liquid (or gas) is fully mobile, is Peak Flow Rate; In the time that roller is in the closed position, under roller compressing, elastic catheter inwall forms linear laminating, and the liquid (or gas) in conduit does not flow, and is zero flow rate regime.
Remarkable result of the present utility model is:
1. chute top and the bottom of inner walls are equipped with tooth bar, and while pushing roller, gear engages with lower tooth bar, and coefficient of friction is little, wear and tear little, and roller rotating direction are identical with propelling movement direction, meet people's operating habit.Be pushed to after assigned address, in gear and chute, upper rack interlock forms positioning resistance, and gear is fixed, thereby keeps long-term and stably predetermined elastic catheter sectional area, can not produce the roller position that elastic catheter elastic deformation causes and move, guarantee flow control accuracy.
2. after roller and housing adopt ultrasound wave to be assembled into one, roller and housing can not be split, and roller can not depart from housing, have avoided the situation that cannot use because losing gadget, and keeping is convenient.
3. compare traditional disposable flow controller, when flow controller of the present utility model pushes roller, resistance is little, promote smooth and easy, without getting stuck phenomenon.Little so wear and tear, long service life, more environmental protection, is more conducive to penetration and promotion.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is the external structure schematic diagram of this utility model flow controller.
Fig. 2 is the internal structure schematic diagram of this utility model flow controller.
Wherein, 1-roller, 2-gear, tooth bar under 3-, 4-upper rack, 5-elastic catheter, the left shell of 6-, the right shell of 7-, 8-chute.
Detailed description of the invention
As shown in Figure 1 and Figure 2, a kind of flow controller, comprises housing, roller 1, elastic catheter 5.
Described case top opening, comprise left shell 6 and right shell 7, left and right shell medial wall is provided with a pair of oblique chute 8 claiming toward each other, chute top and bottom are equipped with tooth bar, wherein the profile of tooth of top upper rack 4 is straight-tooth, for making upper rack 4 form positioning resistance to gear 2, its modulus and gear 2 are unequal.Under bottom, tooth bar 3 moduluses equate with gear 2, and tooth bar and chute are one-body molded;
The roller shaft position, both sides of described roller 1 is respectively equipped with a gear 2, and a pair of gear 2 of both sides is meshed with the tooth bar in chute 8 respectively, and the distance under the tooth top of chute 8 top upper racks 4 and bottom between the tooth root of tooth bar 3 is greater than addendum circle diameter of gear.Be distributed with multiple detent projection evenly continuously on the excircle of roller 1;
Described elastic catheter 5 passes housing, and between the diapire and roller 1 of housing.
Above-mentioned rollers 1 and housing adopt ultrasound wave assembling, are the entirety can not be split.Roller 1 can move along shell bottom wall and the common cavity limiting of sidewall between original position and closed position, and the movement of chute 8 pair rollers 1 play the guiding role.
When use, operator's pressing roller 1 that press...withes one's finger makes the gear 2 of both sides engage with the lower tooth bar 3 of chute 8 bottoms, and jog dial 1 completes after flow rate regulation, unclamp roller, roller 1 makes roller two side gears 2 and chute 8 top upper rack 4 interlocks form positioning resistance under the rebound effect of elastic catheter 5, and roller 1 is firmly positioned to assigned address in housing.Fluid in elastic catheter 5 can be realized the adjusting to zero flow velocity by Peak Flow Rate, and when roller 1 is during in original position, elastic catheter 5 is not subject to the compressing of roller, and the cross section of elastic catheter 5 keeps naturalness, and liquid (or gas) is fully mobile, is Peak Flow Rate; In the time that roller 1 is in the closed position, under roller 1 compressing, elastic catheter 5 inwalls form linear laminating, and the liquid (or gas) in conduit does not flow, and is zero flow rate regime.
The flow controller that this utility model provides has can guarantee flow control accuracy long-term and stably, the features such as keeping is convenient, promotion resistance is little, long service life, environmental protection.
Claims (5)
1. a flow controller, comprise housing, roller, elastic catheter, described case top opening, comprise left shell and right shell, left, right shell medial wall is provided with a pair of oblique chute claiming toward each other, the roller shaft position, both sides of described roller is respectively equipped with a gear, described elastic catheter is through housing, and between the diapire and roller of housing, it is characterized in that: a described left side, right shell inwall chute top is provided with upper rack, bottom is provided with lower tooth bar, the gear of roller both sides is meshed with the tooth bar in chute respectively, distance under the tooth top of chute top upper rack and bottom between the tooth root of tooth bar is greater than addendum circle diameter of gear.
2. flow controller according to claim 1, is characterized in that: described roller, left shell and right shell body three are the entirety can not be split.
3. flow controller according to claim 1, is characterized in that: described tooth bar and chute are one-body molded.
4. flow controller according to claim 1, is characterized in that: the profile of tooth of described chute top upper rack is straight-tooth or spike tooth or concavo-convex asperities.
5. flow controller according to claim 1, is characterized in that: be distributed with multiple detent projection evenly continuously on the excircle of described roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420121505.9U CN203749940U (en) | 2014-03-18 | 2014-03-18 | Flow controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420121505.9U CN203749940U (en) | 2014-03-18 | 2014-03-18 | Flow controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203749940U true CN203749940U (en) | 2014-08-06 |
Family
ID=51245248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420121505.9U Expired - Fee Related CN203749940U (en) | 2014-03-18 | 2014-03-18 | Flow controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203749940U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108904924A (en) * | 2018-04-27 | 2018-11-30 | 温州医科大学 | The flow speed controller of medical infusion lines |
| CN109497022A (en) * | 2018-12-19 | 2019-03-22 | 赵雪虎 | A kind of pesticide mixes spray bucket in real time |
| CN110122025A (en) * | 2019-06-12 | 2019-08-16 | 董串连 | A kind of ornamental plant nutrient solution Dropping feeder |
-
2014
- 2014-03-18 CN CN201420121505.9U patent/CN203749940U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108904924A (en) * | 2018-04-27 | 2018-11-30 | 温州医科大学 | The flow speed controller of medical infusion lines |
| CN108904924B (en) * | 2018-04-27 | 2020-10-23 | 温州医科大学 | Flow rate controller for medical infusion tube |
| CN109497022A (en) * | 2018-12-19 | 2019-03-22 | 赵雪虎 | A kind of pesticide mixes spray bucket in real time |
| CN110122025A (en) * | 2019-06-12 | 2019-08-16 | 董串连 | A kind of ornamental plant nutrient solution Dropping feeder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170920 Address after: 518122 Guangdong province Shenzhen City Pingshan Kengzi office Longtian community Yingzhan Industrial Park building B5 North Building Patentee after: SHENZHEN XNUO ZHIZAO MEDICAL CO.,LTD. Address before: 518122 Guangdong province Shenzhen City Pingshan Kengzi streets Yingzhan Industrial Park building B5a Shenzhen joieya Electric Appliance Co., Ltd. Co-patentee before: Shoh Patentee before: Xiao Yongchu |
|
| 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: 20140806 |