CN2929404Y - Screw valve driver - Google Patents
Screw valve driver Download PDFInfo
- Publication number
- CN2929404Y CN2929404Y CN 200620104426 CN200620104426U CN2929404Y CN 2929404 Y CN2929404 Y CN 2929404Y CN 200620104426 CN200620104426 CN 200620104426 CN 200620104426 U CN200620104426 U CN 200620104426U CN 2929404 Y CN2929404 Y CN 2929404Y
- Authority
- CN
- China
- Prior art keywords
- valve
- ratchet
- screw
- ratchet mechanism
- follower
- 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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- Mechanically-Actuated Valves (AREA)
Abstract
The utility model discloses a screw-down valve actuating device, which comprises a geared-down speed mechanism, a ratchet mechanism and a screw raising mechanism, wherein an output gear of the geared-down speed mechanism is fixedly connected with a driving ratchet of the ratchet mechanism, a driven pawl of the ratchet mechanism is fixedly connected with a driving screw bolt of the screw raising mechanism, and a driven cap nut of the screw raising mechanism is fixedly connected with a valve. Power input from a prime motor with the speed slowdown and the force increased through the geared-down speed mechanism drives the valve realizing up-and-down movement structure of opening and closing the valve through the ratchet mechanism and the screw raising mechanism. The utility model of the screw-down valve actuating device can not only easily control the closed-force of the valve, but also guarantee sufficient force moment to open the valve in the situations of the prime power reducing in a comparatively wide range or the closed-force of the valve increasing caused by certain reasons such as thermal expansion, cold shrinkage or the like. In the condition of guaranteeing reliable closing of the valve, even continuing to increase the prime power, the force using for closing the valve will not increase, which guaranteeing the reliable opening of the valve.
Description
Technical field
Model utility relates to a kind of structure of valve, particularly a kind of screw-down valve transmission device.
Background technique
The ubiquitous a kind of defective of existing screw rod valve is exactly after closing valve, when the motive force deficiency, descends such as cell voltage; Perhaps load increases, and does not drive valve such as the bolt and nut coupling mechanism force is strengthened.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of working as to adopt big motive force for the deficiency that solves above-mentioned technology, and partly utilizes this motive force when closing valve, whole these motive force of using when driving valve; And when driving valve, can make motive force elder generation starting under no load, drive load then and drive valve, utilize the inertia impulsive force of prime mover to increase out the screw-down valve transmission device of the reliability of valve.
In order to achieve the above object, a kind of screw-down valve transmission device that the utility model is related, it is made up of reduction gears mechanism, ratchet mechanism and screw rod hoister structure, and the driving link ratchet of the output gear of reduction gears mechanism and ratchet mechanism is fixed together; The driven member ratchet of ratchet mechanism and the driving link screw rod of screw rod hoister structure are fixed together; The driven member nut and the valve of screw rod hoister structure are fixed together; Through the reduction gears mechanism deceleration force amplifier,, drive the structure that moves up and down that valve realizes doing switch valve by the power of prime mover input through ratchet mechanism and screw rod hoister structure.Ratchet mechanism can realize controlling the moment of a certain transmission direction of unidirectional control thus.
Contain one group of duplicate gear of forming by driving wheel and follower in the described reduction gears mechanism, driving wheel and follower are socketed on the same mandrel, at driving wheel upper edge radial arrangement convex tendon, at follower upper edge radial arrangement boss, this convex tendon and boss are staggered vertically, and convex tendon and lug boss position can be exchanged.Promptly at driving wheel upper edge radial arrangement boss, at follower upper edge radial arrangement convex tendon.Its effect is to allow motor drive load again behind the startup and the fixing turn that dallies, and utilizes the reliability of the inertia impulsive force increase opening/shutting valve of rotor.
Described ratchet mechanism is an elasticity ratchet mechanism, can adopt plastic material or adopt metal clips, and ratchet can adopt external gear or ring gear, its effect is, behind valve closing, because the reaction force of valve port, nut can not continue to descend, thereby become the load resistance of ratchet, be that because the elastic strain of ratchet, ratchet begins to skid when this resistance reaches certain numerical value, valve can not continue to increase to the pressure of valve port, thereby reaches the purpose that valve power is closed in control.And when valve opening, ratchet mechanism can not skid because of self-locking, thereby whole motive force can be used to open valve.
The resulting a kind of screw-down valve transmission device of the utility model, an outstanding advantage is, both closing force sizes of control valve easily, can guarantee again that motive force reduces or, still have enough moment in the scope of a broad valve open owing to reason such as expand with heat and contract with cold makes under the situation that valve closes power strengthens.Under the situation that guarantees reliable pass valve, even continue to strengthen motive force, it closes valve power can not increase yet, thereby has reserved enough strength nargin for driving valve.Can do to make motor behind rotation one fixing turn, drive load again, also increase insurance together for reliably driving valve less than the counterrotating duplicate gear in 360 degree angles.
Description of drawings
Fig. 1 is the utility model example structure schematic representation;
Fig. 2 is the sectional view of duplicate gear mechanism;
Fig. 3 is the sectional view of ratchet mechanism.
Embodiment
The utility model will be further described in conjunction with the accompanying drawings below by embodiment.
Embodiment:
As shown in Figure 1, a kind of screw-down valve transmission device that present embodiment is described, it is made up of reduction gears mechanism A, ratchet mechanism B and screw rod hoister structure C, and the output gear 3 of reduction gears mechanism and the driving link ratchet 4 of ratchet mechanism are fixed together; The driven member ratchet 5 of ratchet mechanism is fixed together with the driving link screw rod 6 of screw rod hoister structure; The driven member nut 7 and the valve 8 of screw rod hoister structure are fixed together; Through reduction gears mechanism A deceleration force amplifier,, drive the structure that moves up and down that valve 8 realizes doing switch valve by the power of prime mover input through ratchet mechanism B and screw rod hoister structure C.Contain one group of duplicate gear of forming by driving wheel 1 and follower 2 among the described reduction gears mechanism A, driving wheel 1 and follower 2 are socketed on the same mandrel 9, as shown in Figure 2, at driving wheel 1 upper edge radial arrangement convex tendon a, at follower 2 upper edge radial arrangement boss b, this convex tendon a boss b is staggered vertically, and convex tendon a and boss b position can exchange.Promptly at driving wheel 1 upper edge radial arrangement boss b, at follower 2 upper edge radial arrangement convex tendon a.As shown in Figure 3, described ratchet mechanism B is an elasticity ratchet mechanism, can adopt plastic material or adopt metal clips, and ratchet can adopt ring gear, also can adopt external gear.
Its working procedure is: when closing valve, electric motor starting through gear transmission, drives duplicate gear driving wheel 1 and rotates, because the boss b of the convex tendon a of duplicate gear driving wheel 1 and follower 2 still has the neutral gear near a circle on transmission direction at this moment, so motor is a No Load Start.When electric motor starting and after rotating a fixing turn, the convex tendon a of duplicate gear driving wheel 1 and the boss b of follower 2 have come on transmission direction together, and this just is delivered to subordinate's gear power, is output gear 3 herein.Because output gear 3 is fixed together with the driving link ratchet 4 of ratchet mechanism, the driven member ratchet 5 of ratchet mechanism is fixed together with the driving link screw rod 6 of screw rod hoister structure, thereby ratchet 4 drives ratchet 5, and drives nut 7 through screw rod 6, finally drives valve 8 and descends to finish the pass valve.After valve 8 is closed, because the reaction force of valve port, nut 7 can not continue to descend, thereby becomes the load resistance of ratchet 5, when this resistance reaches certain numerical value is, because the elastic strain of ratchet 5, ratchet 4 begins to skid, and the pressure of 8 pairs of valve ports of valve can not continue to increase, after the time that reaches the control system setting, supply disconnecton, thus the pass valve events finished.Thereby reach the purpose that valve power is closed in control.
When driving valve, the same during with the pass valve, after starting and rotate a fixing turn, empty load of motor drives the laod reversal transmission, made full use of the inertia impulsive force of rotor, and self-locking takes place during the ratchet mechanism reversing drive, can not skid, whole power can be used to open valve, thereby increase the reliability of driving valve.
Claims (5)
1, a kind of screw-down valve transmission device, it is made up of reduction gears mechanism (A), ratchet mechanism (B) and screw rod hoister structure (C), it is characterized in that the output gear (3) of reduction gears mechanism and the driving link ratchet (4) of ratchet mechanism, is fixed together; The driven member ratchet (5) of ratchet mechanism is fixed together with the driving link screw rod (6) of screw rod hoister structure; The driven member nut (7) of screw rod hoister structure is fixed together with valve (8); Through reduction gears mechanism (A) deceleration force amplifier,, drive the structure that moves up and down that switch valve is made in valve (8) realization by the power of prime mover input through ratchet mechanism (B) and screw rod hoister structure (C).
2, a kind of screw-down valve transmission device according to claim 1, it is characterized in that containing in the described reduction gears mechanism (A) one group of duplicate gear of forming by driving wheel (1) and follower (2), driving wheel (1) and follower (2) are socketed on the same mandrel (9), at driving wheel (1) upper edge radial arrangement convex tendon (a), at follower (2) upper edge radial arrangement boss (b), convex tendon (a) boss (b) is staggered vertically.
3, a kind of screw-down valve transmission device according to claim 1, it is characterized in that containing in the described reduction gears mechanism (A) one group of duplicate gear of forming by driving wheel (1) and follower (2), driving wheel (1) and follower (2) are socketed on the same mandrel (9), at driving wheel (1) upper edge radial arrangement boss (b), at follower (2) upper edge radial arrangement convex tendon (a), convex tendon (a) and boss (b) are staggered vertically.
4,, it is characterized in that described ratchet mechanism (B) is an elasticity ratchet mechanism, and ratchet (4) adopts external gear according to claim 1 or 2 or 3 described a kind of screw-down valve transmission devices.
5,, it is characterized in that described ratchet mechanism (B) is an elasticity ratchet mechanism, and ratchet (4) adopts ring gear according to claim 1 or 2 or 3 described a kind of screw-down valve transmission devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620104426 CN2929404Y (en) | 2006-06-07 | 2006-06-07 | Screw valve driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620104426 CN2929404Y (en) | 2006-06-07 | 2006-06-07 | Screw valve driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2929404Y true CN2929404Y (en) | 2007-08-01 |
Family
ID=38307786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620104426 Expired - Fee Related CN2929404Y (en) | 2006-06-07 | 2006-06-07 | Screw valve driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2929404Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174871A (en) * | 2013-03-07 | 2013-06-26 | 常州乐士雷利电机有限公司 | Valve opening and closing control mechanism |
| CN108591570A (en) * | 2018-05-08 | 2018-09-28 | 九牧厨卫股份有限公司 | A kind of motor on-off valve control method and relevant control system |
-
2006
- 2006-06-07 CN CN 200620104426 patent/CN2929404Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174871A (en) * | 2013-03-07 | 2013-06-26 | 常州乐士雷利电机有限公司 | Valve opening and closing control mechanism |
| CN103174871B (en) * | 2013-03-07 | 2015-12-23 | 江苏雷利电机股份有限公司 | Valve open and close controlling mechanism |
| CN108591570A (en) * | 2018-05-08 | 2018-09-28 | 九牧厨卫股份有限公司 | A kind of motor on-off valve control method and relevant control system |
| CN108591570B (en) * | 2018-05-08 | 2020-06-23 | 九牧厨卫股份有限公司 | Motor switch valve control method and related control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070801 |