CN101907194B - Bidirectional blockage-free gear-driven special electromechanical valve for gas meters - Google Patents
Bidirectional blockage-free gear-driven special electromechanical valve for gas meters Download PDFInfo
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- CN101907194B CN101907194B CN 201010230368 CN201010230368A CN101907194B CN 101907194 B CN101907194 B CN 101907194B CN 201010230368 CN201010230368 CN 201010230368 CN 201010230368 A CN201010230368 A CN 201010230368A CN 101907194 B CN101907194 B CN 101907194B
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Abstract
The invention discloses a bidirectional blockage-free gear-driven special electromechanical valve for gas meters, which comprises an outer shell body and an outer shell cover. An inner shell is arranged in the outer shell body; a motor (1) is sealed and arranged inside the inner shell; and a gear box (2) and an actuator of a valve rod (3) are further arranged inside the inner shell. The non-blockage is achieved during opening and closing the valve, the use reliability of the electromechanical valve is increased, the energy consumption of the electromechanical valve is decreased, the service life of the electromechanical valve is improved, the bidirectional blockage-free gear-driven special electromechanical valve for the gas meters has simple structure and wide application range and can be arranged on the gas meters with various structures for use.
Description
Technical field
The present invention relates to gas meter and use electromechanical valve, the gear-driven gas meter special electromechanical valve of a kind of two-way no stall of saying so more specifically.
Background technique
At present, the electromechanical valve that the IC-card intelligent gas meter is adopted roughly has two kinds of structures, and the one, electromechanical valve is passed through the forward and reverse rotation of motor; The gear driven worm screw, catch bar moves in the worm spiral groove simultaneously, realizes opening and closing of valve; But this kind structure does not have discharge mechanism, be stall after forward and backward puts in place, and its load is also bigger; Can cause the control circuit electric current big like this, power consumption is big.And can influence the reliability of the control circuit of master controller valve, shorten the working life of battery in the controller, and close the storage capacitor value that valve adopted also can be very big.The 2nd, through the forward and reverse rotation of motor, drive fan tooth and rotate, reach the function of anti-stall and quick closedown; The special electromechanical valve that applies for disclosed a kind of gas meter in the Chinese utility model patent that the patent No. of applying on December 1st, 2006 is CN200620036489.9 like this patent; In speed-changing gear box, adopt anti-blocking rotation mechanism and the tooth sector of being made up of the wobble gear above wobble plate and the wobble plate, the wobble gear of wobble plate upper fixed and tooth sector think that the swing of engagement fit wobble plate realizes the function of the anti-stall of electromechanical valve.But this kind structure all is to adopt the sealer sealing; Owing to need quality of fit, can not there be big gap to form sealer thickness and causes seal failure, making motor is not to seal fully; Rock gas can cause corrosion to motor winding in long-term use; Damage motor, cause the motor lost of life, and the structure that the wobble gear of wobble plate and upper fixed thereof is meshed with tooth sector can not realize complete forward and reverse unloading.
Summary of the invention
The objective of the invention is to solve above-mentioned deficiency, provide a kind of can be when motor positive and inverse the gear in the speed-changing gear box realize the gear-driven gas meter special electromechanical valve of two-way no stall of complete discharge.
For solving above-mentioned technical problem, the present invention adopts following technological scheme:
The gear-driven gas meter special electromechanical valve of two-way no stall of the present invention comprises frame and outer housing cover, and inner casing is installed in the frame; The motor that the inner casing inner sealing is equipped with; Inner casing inside also is equipped with speed-changing gear box and valve rod actuator, and top cover is arranged on the speed-changing gear box, and adopts sealing to install; One end of valve rod is fixed with sealed cap, and the other end is provided with porose; Output gear, input gear and driving gear are installed in the speed-changing gear box; The output shaft of motor is fixed on the input gear, and output gear is meshed with some driving gears respectively with the input gear, finally forms output gear and is meshing with each other indirectly with the input gear; The input gear is meshed with driving gear through transmission shaft; Transmission shaft sealing and fixing between input gear and the driving gear also is equipped with the imperfect gear of ratchet doubly-linked gear in the described speed-changing gear box on driving gear, ratchet doubly-linked gear is meshed with imperfect gear and driving gear respectively; Imperfect gear upper fixed has eccentric rod, and eccentric rod inserts in the hole on the valve rod the other end; Lock dog also is installed in the described speed-changing gear box, and lock dog and ratchet doubly-linked gear fasten; Spring all is installed on lock dog and the imperfect gear and fastens with it.
Technological scheme further is: described lock dog is fixedly mounted on the transmission shaft through clamping plate.
Technological scheme further is: described motor and inner casing are installed through the seal ring static seal.
Technological scheme further is: the transmission shaft between described input gear and the driving gear adopts the motive sealing of seal ring reinforcement to be fixed on the speed-changing gear box top cover.
Technological scheme further is: described ratchet doubly-linked gear is to constitute by in the gear upper fixed ratchet wheel being installed, and lock dog and ratchet wheel fasten, and gear is meshed with imperfect gear and driving gear respectively.
Technological scheme further is: the ratchet on the described ratchet wheel is towards counterclockwise tilting.
Technological scheme further is: described lock dog upper spring is a Returnning spring, and it is installed in through clamping plate on the transmission shaft of driving gear to promote lock dog.
Technological scheme further is: the spring on the described imperfect gear is a torsion spring, and it is installed on the top cover of speed-changing gear box.
Compared with prior art, the invention has the beneficial effects as follows: motor adopts seal ring static seal and reinforcement motive sealing, motor is sealed fully be installed in the frame; Avoided the corrosion of rock gas to motor winding, the Security that has improved electromechanical valve increases in speed-changing gear box ratchet doubly-linked gear is installed; Cooperate the locking and the release of imperfect gear and lock dog, all can realize complete discharge, and when driving valve and closing valve, realize no stall in the motor forward and reverse; Increased the operational safety of electromechanical valve; And reduced the use energy consumption of electromechanical valve, improve its working life, and simple in structure; Applied range can on the gas meter of various structures, be installed and used.
Description of drawings
Fig. 1 is an overall structure schematic representation of the present invention;
Fig. 2 is the structural representation of imperfect gear, ratchet doubly-linked gear in the middle gear gearbox of the present invention;
Fig. 3 is the structural representation of interior input gear, output gear in the middle gear gearbox of the present invention
Fig. 4 is the structural representation of driving gear of the present invention and the motive sealing of transmission shaft gearbox reinforcement.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further elaboration.
Like Fig. 1, Fig. 2, the gear-driven gas meter special electromechanical valve of two-way no stall of the present invention shown in Figure 3 comprises frame and outer housing cover; Inner casing is installed in the frame, the motor 1 that the inner casing inner sealing is equipped with, preferential seal ring 10 static seals that adopt of motor 1 sealing are installed; Inner casing inside also is equipped with speed-changing gear box 2 and valve rod 3 actuators, and speed-changing gear box 2 is provided with top cover 9, and adopts sealing to install; An end fixing seal cap 31 of valve rod 3 at the same time, the other end is provided with porose; Input gear 22, output gear 21 and some driving gears are installed in speed-changing gear box 1; The output shaft of motor 1 is fixed on the input gear 22; Input gear 22 is meshed with some driving gears respectively; Output gear 21 also is meshed with plurality of gears; And finally form output gear 21 and 22 indirect being meshing with each other of input gear; Output gear 21 is meshed with driving gear 23 through transmission shaft 8, and transmission shaft 8 sealing and fixing between input gear 22 and the driving gear 23 adopt seal ring 10 reinforcement motive sealings to be fixed on the top cover 9 on driving gear 23 between driving gear 23 and the transmission shaft 8.Ratchet doubly-linked gear 4 and imperfect gear 5 also are installed in the top cover 9 in the described speed-changing gear box 1; Ratchet doubly-linked gear 4 is to constitute by in the gear upper fixed ratchet wheel being installed; Ratchet on the ratchet wheel is towards inclination counterclockwise, and gear is meshed with driving gear 23 with imperfect gear 5 respectively.Imperfect gear 5 upper fixed have eccentric rod 51, in the hole that eccentric rod 51 inserts on valve rod 3 the other ends.Also be provided with in the described speed-changing gear box 2 lock dog 6 is installed, lock dog 6 is fixedly mounted on the transmission shaft 8 through clamping plate, and fastens with ratchet wheel on the ratchet doubly-linked gear 4; On lock dog 6 and the imperfect gear 5 spring is installed all, lock dog 6 upper springs are Returnning spring 20, and it is installed in through clamping plate on the transmission shaft 8 of driving gear 23, and unloading pusher moving lock piece 6 resets when lock dog 6 is run into gear-box top cover 9 edges; Spring on the imperfect gear 5 is a torsion spring 7, and it is installed on the speed-changing gear box top cover 9, and the torsion spring 7 on the imperfect gear 5 closes valve after lock dog 6 releases, opens the process of valve or pass valve through above-mentioned two springs.
Like Fig. 1, shown in Figure 2; The valve process of opening of the gear-driven gas meter special electromechanical valve of two-way no stall of the present invention is: when motor 1 rotate counterclockwise and through output shaft moment of torsion is increased and indirect transfer to driving gear 23; Driving driving gear 23 rotates; Driving gear 23 is rotated counterclockwise through the imperfect gear 5 of the gear driven on the ratchet doubly-linked gear 4; The fixing seal cap 31 of valve rod 3 and one of which end is withdrawn under the drive of eccentric rod 51, and this moment, the fixing seal cap 31 left valve, the gear-driven gas meter special electromechanical valve of two-way no stall of the present invention drive valve in opened condition; , realizes by imperfect gear 5 that imperfect gear 5 unloads from the gear on the ratchet doubly-linked gear 4 when being rotated counterclockwise anodontia position; Though this moment, driving tooth 23 was also with counterclockwise rotating, gear not with imperfect gear 5 on tooth be meshed, when motor 1 stops operating; Anticlockwise ratchet wheel fixing on the ratchet doubly-linked gear 4 is locked under the effect of lock dog 6; The Returnning spring of installing on the imperfect gear 5 can not make imperfect gear 5 rotate, and promptly lock dog 6 pins ratchet wheel and then pins ratchet doubly-linked gear 4, and ratchet doubly-linked gear 4 pins imperfect gear; Make not rollback of valve rod 3, and then make valve be held open state.
Like Fig. 1, shown in Figure 2; The pass valve process of the gear-driven gas meter special electromechanical valve of two-way no stall of the present invention is: be delivered to driving gear 23 when motor 1 clockwise rotates and indirectly moment of torsion increased through output shaft; Driving gear 23 also turns clockwise; This moment is owing to ratchet doubly-linked gear 4 is pinned by lock dog 6; Force ratchet wheel doubly-linked gear 4 around the rotation of the gear shaft of driving tooth 23 and break away from imperfect gear 5 and realize releases, under the effect that engages torsion spring power on the imperfect gear 5 with it, imperfect gear 5 is rotated, the eccentric rod 51 of its top rotates with imperfect gear 5 and promotes valve rod 3 throttle downs; When ratchet wheel doubly-linked gear 4 rotates when promoting lock dogs 6 and bumping speed-changing gear box 2 lid inner side surfaces around driving gear 23; Lock dog 6 rotates with its stationary axle; When lock dog 6 is run into gear-box top cover 9 inner side surfaces, throw off ratchet wheel, realize unloading; Make and close valve and do not have stall. after motor stops operating, under the effect of the reposition force of Returnning spring, lock dog 6 is resetted.
Claims (4)
1. the gear-driven gas meter special electromechanical valve of two-way no stall comprises frame and outer housing cover, and inner casing is installed in the frame; The inner casing inner sealing is equipped with motor (1); Inner casing inside also is equipped with speed-changing gear box (2) and valve rod (3) actuator, and top cover (9) is arranged on the speed-changing gear box (2), and adopts sealing to install; One end of valve rod (3) is fixed with sealed cap (31), and the other end is provided with porose; Output gear (21), input gear (22) and driving gear (23) are installed in the speed-changing gear box (2); The output shaft of motor (1) is fixed on the input gear (22); Output gear (21) is meshed with some driving gears respectively with input gear (22); The final output gear (21) that forms is meshing with each other with input gear (22) indirectly; Output gear (21) is meshed with driving gear (23) through transmission shaft (8); It is characterized in that: transmission shaft (8) sealing and fixing between input gear (22) and the driving gear (23) also is equipped with ratchet doubly-linked gear (4) and imperfect gear (5) in the described speed-changing gear box (2) on driving gear (23), ratchet doubly-linked gear (4) is meshed with imperfect gear (5) and driving gear (23) respectively; Imperfect gear (5) upper fixed has eccentric rod, and eccentric rod inserts in the hole on valve rod (3) the other end; Lock dog (6) also is installed in the described speed-changing gear box (2), and lock dog (6) fastens with ratchet doubly-linked gear (4); On lock dog (6) and the imperfect gear (5) spring is installed all and fastens with it; Described lock dog (6) upper spring is Returnning spring (20); It is gone up to promote lock dog (6) through the transmission shaft (8) that clamping plate are installed in driving gear (23); Spring on the described imperfect gear (5) is torsion spring (7), and it is installed on the top cover (9) of speed-changing gear box (2); Described motor (1) is installed through the seal ring static seal with inner casing, and the transmission shaft (8) between described input gear (22) and the driving gear (23) adopts the motive sealing of seal ring reinforcement to be fixed on the speed-changing gear box top cover (9).
2. the gear-driven gas meter special electromechanical valve of two-way no stall according to claim 1, it is characterized in that: described lock dog (6) is fixedly mounted on the transmission shaft (8) through clamping plate.
3. the gear-driven gas meter special electromechanical valve of two-way no stall according to claim 1; It is characterized in that: described ratchet doubly-linked gear (4) is to constitute by in gear (42) upper fixed ratchet wheel (41) being installed; Lock dog (6) fastens with ratchet wheel (41), and gear (42) is meshed with imperfect gear (5) and driving gear (23) respectively.
4. the gear-driven gas meter special electromechanical valve of two-way no stall according to claim 3 is characterized in that: the ratchet on the described ratchet wheel (41) is towards counterclockwise tilting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010230368 CN101907194B (en) | 2010-07-19 | 2010-07-19 | Bidirectional blockage-free gear-driven special electromechanical valve for gas meters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010230368 CN101907194B (en) | 2010-07-19 | 2010-07-19 | Bidirectional blockage-free gear-driven special electromechanical valve for gas meters |
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| Publication Number | Publication Date |
|---|---|
| CN101907194A CN101907194A (en) | 2010-12-08 |
| CN101907194B true CN101907194B (en) | 2012-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010230368 Active CN101907194B (en) | 2010-07-19 | 2010-07-19 | Bidirectional blockage-free gear-driven special electromechanical valve for gas meters |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818062B (en) * | 2012-09-12 | 2015-08-26 | 成都秦川科技发展有限公司 | A kind of small capacity double for gas meter is to without stall gear transmission electromechanical valve |
| CN203453585U (en) * | 2013-08-14 | 2014-02-26 | 成都秦川科技发展有限公司 | Bidirectional non-blockage turning gear transmission gas meter dedicated cut-off valve |
| CN103471675A (en) * | 2013-09-29 | 2013-12-25 | 成都秦川科技发展有限公司 | Cutting type diaphragm gas meter |
| CN104595497A (en) * | 2015-01-09 | 2015-05-06 | 四川大学 | Novel intelligent gas meter motor valve |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1059792A (en) * | 1975-06-06 | 1979-08-07 | Dresser Industries | Combined pressure and temperature correction apparatus for gas meters |
| CN2510677Y (en) * | 2001-10-23 | 2002-09-11 | 朱建 | Blocking-free, low-power-consumption, high-reliable, IC card gas meter motor-driving valve |
| CN200975491Y (en) * | 2006-12-01 | 2007-11-14 | 成都秦川科技发展有限公司 | Electromechanical valve special for block-resistant rapid cut-out gas meter |
| CN200979012Y (en) * | 2006-12-13 | 2007-11-21 | 朱建 | Reverse releasing mechanism of electric check valve opening-closing device |
| CN201344300Y (en) * | 2008-12-09 | 2009-11-11 | 蒋民 | Valve control manipulator |
| CN201723731U (en) * | 2010-07-19 | 2011-01-26 | 成都秦川科技发展有限公司 | Bidirectional rotation blocking-free gear-driven electromechanical valve specially used for gas meter |
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| CN101907194A (en) | 2010-12-08 |
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Address after: 610100, Longquanyi District, Sichuan province Chengdu boundary brand industrial park Patentee after: Chengdu Qinchuan networking Polytron Technologies Inc Address before: 610100, Longquanyi District, Sichuan province Chengdu boundary brand industrial park Patentee before: Chengdu Taichuan Technology Development Co., Ltd. |