CN203115257U - Straight tooth cylindrical gearing transmission stop valve - Google Patents
Straight tooth cylindrical gearing transmission stop valve Download PDFInfo
- Publication number
- CN203115257U CN203115257U CN 201320164605 CN201320164605U CN203115257U CN 203115257 U CN203115257 U CN 203115257U CN 201320164605 CN201320164605 CN 201320164605 CN 201320164605 U CN201320164605 U CN 201320164605U CN 203115257 U CN203115257 U CN 203115257U
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- Prior art keywords
- valve
- flap
- clack
- casing
- spur gear
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- Expired - Fee Related
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- Mechanically-Actuated Valves (AREA)
Abstract
The utility model relates to the technical field of stop valves, in particular to a straight tooth cylindrical gearing transmission stop valve. The straight tooth cylindrical gearing transmission stop valve comprises a valve body, a valve seat, valve clacks, a valve rod, a valve cover, a straight tooth cylindrical gearing transmission device and the like, and is technically characterized in that improvement is carried out on the valve clacks, the valve clacks are composed of a main valve clack, a vice valve clack and a valve clack cover, the side face of the main valve clack is provided with stream guidance holes, the main sealing inclined plane of the main valve clack is in 60-degree conical surface sealing fit with the sealing surface of the valve seat, the vice valve clack is mounted on an inner cavity of the main valve clack, the sealing plane of the bottom of the vice valve clack is in sealing fit with the vice sealing surface of the main valve clack, and the vice valve clack is fixed in the main valve clack through the valve clack cove. Through the structural mode, not only is the sealing effect of the valve improved, but also an adjusting or throttling effect on media from the valve is benefited, and generated torques when the valve clacks are opened and closed are effectively reduced. In addition, the straight tooth cylindrical gearing transmission device is adopted in the valve to carry out opening and closing action for driving the valve, the torques are small in operation, and a user can operate conveniently and safely.
Description
Technical field
The utility model relates to the stop valve technical field, particularly a kind of straight toothed spur gear transmission stop valve.
Background technique
Stop valve is a kind of in many pipeline valves, is mainly used in controlling that the fluid stopping by force of liquid medium is widely used in the pipeline.Existing stop valve must be exerted pressure to flap when valve closing and do not leaked with forced seal face, when medium enters valve by the flap below, the frictional force that the required resistance that overcomes of steering force is valve rod and filler and the thrust that is produced by the pressure of medium, the power that the force rate of closing valve is opened valve is big, for avoiding taking place the fault of valve rod bending, so often will strengthen the diameter of valve rod, so the pass valve moment of torsion of valve could be realized sealing by complete throttle down when the user often needing when operated valve is closed to carry out extension lever more greatly.Therefore, at the existing defective of existing stop valve and deficiency, designing a kind of low cost, the good stop valve of usability is very to be necessary.
The model utility content
The purpose of this utility model is at the deficiencies in the prior art, provide a kind of simple in structure, fabricating cost is low, usability is good, the reliable straight toothed spur gear transmission of sealability stop valve.
For achieving the above object, the utility model by the following technical solutions.
A kind of straight toothed spur gear transmission stop valve described in the utility model comprises valve body, valve seat, flap, valve rod, valve gap and straight toothed spur gear transmission device; Described two ends of valve body is respectively equipped with flange plate, and the inner chamber intermediate portion of valve body is provided with valve seat; Described valve seat is connected to one with valve body by being threaded, and the sealing surface of valve seat is made as 60 ° of conical surfaces; Described flap is installed in the top of valve seat, and sealing surface and the sealing surface of seat of flap are sealed and matched mutually; One end of described valve rod adopts T-slot Placement and flap to be movably connected, and the other end of valve rod passes upper seal support, filler, filler gland and the hold-down grid and the Stem Mut that are installed in the valve gap and is fixed together by engage thread; Described valve gap is installed on the middle flanged surface of valve body, valve gap is fixed on the valve body by stud and hexagon nut I, upper seal support is housed in the axis hole of valve gap from bottom to top successively, filler, the filler gland, hold-down grid, thrust ball bearing, Stem Mut and gland, the boss of described Stem Mut up and down two ends is equipped with the thrust ball bearing I and by gland fixedly in the valve gap axis hole, the internal thread of Stem Mut is threaded with valve rod and cooperates together, the top of Stem Mut is fixed together by the gearwheel in flat key and the straight toothed spur gear transmission device, and described straight toothed spur gear transmission device is installed on the end face of flange of valve gap and by hexagon head bolt I and valve gap and is connected to one.
Further, described flap comprises main valve clack, secondary flap and flap lid, the side of described main valve clack is provided with pod apertures, the tapering on the primary seal inclined-plane of main valve clack is 60 ° and becomes conical surface seal to cooperate with sealing surface of seat, the inner chamber place of main valve clack is provided with secondary sealing plane and is sealed and matched mutually with secondary flap sealing surface, the inner chamber of described secondary flap is provided with T-slot and stem bottom is connected, the bottom end face of secondary flap is provided with sealing plane, and described flap lid is connected to one by thread connecting mode and main valve clack.
Further, described straight toothed spur gear transmission device, comprise casing, case lid, gearwheel, small gear, rotating shaft and handwheel, described casing is fixed on the end face of flange of valve gap by the hexagon head bolt I, the inner chamber of casing is respectively equipped with gearwheel and small gear, described gearwheel is installed in the middle place of inner chamber of casing, the endoporus place of gearwheel establishes the flat key groove and is fixed together by flat key and Stem Mut, the teeth groove at gearwheel place and the alligator of small gear cooperatively interact and link together, described small gear is installed the place, right side of casing, small gear is fixed together by flat key and rotating shaft, described rotating shaft one end passes in the axis hole that small gear is inserted into casing, the other end is connected to one by hexagon thin nut and handwheel, rotating shaft is fixed in the casing by case lid and thrust ball bearing II, and described case lid is connected to one by hexagon head bolt II and casing.
Enter a ground, the upper end of described valve rod has the indication groove, and indication groove place is provided with positioning block.
After adopting said structure, the utility model beneficial effect is: the utility model main valve plate and auxiliary valve plate can carry out relative movement, after auxiliary valve plate moves to certain altitude, pod apertures is opened, the valve body medium can slowly flow out by the pod apertures on the main valve plate, be conducive to valve like this to adjusting or the throttling action of medium, the moment that has produced when having reduced the flap open and close effectively, in addition, valve adopts the straight toothed spur gear transmission device to drive the switching motion of valve, and moment is less during operation makes things convenient for the user can safety operation.
Description of drawings
Fig. 1 is the utility model cross-sectional view.
Fig. 2 is the flap cross-sectional view.
Fig. 3 is stem structure schematic representation (broken section).
Fig. 4 is straight toothed spur gear transmission device cross-sectional view.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figures 1 to 4,1, valve body, 2, valve seat, 3, main valve clack, 4, secondary flap, 5, valve rod, 6, seal ring, 7, the flap lid, 8, upper seal support, 9, packing ring, 10, filler, 11, valve gap, 12, stud, 13, the hexagon nut I, 14, the filler gland, 15, hold-down grid, 16, swing bolt, 17, the hexagon nut II, 18, positioning block, 19, sunk screw, 20, the thrust ball bearing I, 21, Stem Mut, 22, gland, 23, Cock screw, 24, the hexagon head bolt I, 25, casing, 26, gearwheel, 27, the hexagon head bolt II, 28, case lid, 29, rotating shaft, 30, flat key, 31, small gear, 32, the thrust ball bearing II, 33, handwheel, 34, hexagon thin nut, 50, the primary seal inclined-plane, 51, secondary sealing plane, 52, pod apertures, 53, the indication groove, 60, flap, 70, the straight toothed spur gear transmission device.
A kind of straight toothed spur gear transmission stop valve described in the utility model comprises valve body 1, valve seat 2, flap 60, valve rod 5, valve gap 11 and straight toothed spur gear transmission device 70, and above-mentioned several parts constitute the utility model agent structure.
The two ends of described valve body 1 are respectively equipped with flange plate, the inner chamber intermediate portion of valve body 1 is provided with valve seat 2, described valve seat 2 is connected to one with valve body 1 by being threaded, the 60 primary seal inclined-planes 50 that the sealing surface of valve seat 2 is made as 60 ° of conical surfaces and flap are sealed and matched mutually, described flap 60 is by main valve clack 3, secondary flap 4 and flap lid 7 constitute, the side of described main valve clack 3 is provided with pod apertures 52, the tapering on the primary seal inclined-plane 50 of main valve clack 3 is 60 ° and becomes conical surface seal to cooperate with valve seat 2 sealing surfaces, the inner chamber place of main valve clack 3 is provided with secondary sealing plane 51 and is sealed and matched mutually with secondary flap 4 sealing surfaces, the inner chamber of described secondary flap 4 is provided with T-slot and valve rod 5 bottom activities are connected, the bottom end face of secondary flap 4 is provided with sealing plane, described flap lid 7 is provided with seal ring 6 and is sealed and matched together with main valve clack 3, flap lid 7 is connected to one by thread connecting mode and main valve clack 3, the lower end of described valve rod 5 cooperatively interacts with flap 60 and is connected, the upper seal support 8 in the valve gap 11 is passed in the upper end of valve rod 5, filler 10, filler gland 14, hold-down grid 15 and Stem Mut 21 are by being threaded togather, described valve gap 11 is installed on the middle end face of flange of valve body 1 and by stud 12 and hexagon nut I 13 and is connected to one with valve body 1, be provided with to form between packing ring 9 and the valve body 1 at the bottom end place of valve gap 11 and be sealed and matched, be respectively equipped with upper seal support 8 in valve gap 11 axis holes from bottom to top successively, filler 10, filler gland 14, hold-down grid 15, described upper seal support 8 is fixed in the valve gap 11 by being threaded, the top of upper seal support 8 is provided with filler 10, filler 10 is fixed in the axis hole of valve gap 11 by filler gland 14 and hold-down grid 15, hold-down grid 15 is connected to one with valve gap 11 by swing bolt 16 and hexagon nut II 17, in the endoporus of the top of valve gap 11, be respectively equipped with thrust ball bearing I 20, Stem Mut 21 and gland 22, the upper end of described Stem Mut 21 connects by flat key and straight toothed spur gear transmission device 70 is connected to one, the place, upper and lower end face of Stem Mut 21 boss is provided with thrust ball bearing I 20 respectively and by gland 22 itself and Stem Mut 21 is fixed in the valve gap 11, gland 22 is connected to one by Cock screw 23 and valve gap 11, the side at valve gap 11 tops is provided with positioning block 18, described positioning block 18 1 ends are by sunk screw 19 fixedly on the valve gap 11, the other end is inserted in the indication groove 53 of valve rod 5, when valve opening and closing, can determine the keying height of flap 60 according to positioning block 18 shown scale values, at the straight toothed spur gear transmission device 70 that the middle end face of flange of valve gap 11 is provided with, straight toothed spur gear transmission device 70 is connected to one by hexagon head bolt I 24 and valve gap 11.
Described straight toothed spur gear transmission device 70, comprise casing 25, case lid 28, gearwheel 26, small gear 31, rotating shaft 29 and handwheel 33, described casing 25 is fixed on the end face of flange of valve gap 11 by hexagon head bolt I 24, the inner chamber of casing 25 is respectively equipped with gearwheel 26 and small gear 31, described gearwheel 26 is installed in the middle place of inner chamber of casing 25, the endoporus place of gearwheel 26 establishes the flat key groove and is fixed together by flat key and Stem Mut 21, the teeth groove at gearwheel 26 places and the alligator of small gear 31 cooperatively interact and link together, described small gear 31 is installed the place, right side of casing 25, small gear 31 is fixed together by flat key 30 and rotating shaft 29, described rotating shaft 29 1 ends pass in the axis hole that small gear 31 is inserted into casing 25, the other end is connected to one by hexagon thin nut 34 and handwheel 33, rotating shaft 29 is fixed in the casing 25 by case lid 28 and thrust ball bearing II 32, described case lid 28 is connected to one by hexagon head bolt II 27 and casing 25, can drive flap 60 and carry out the keying function that upper and lower displacement realizes valve when rotating handwheel 33.
The above only is preferred embodiments of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.
Claims (4)
1. straight toothed spur gear transmission stop valve, comprise valve body (1), valve seat (2), flap (60), valve rod (5), valve gap (11) and straight toothed spur gear transmission device (70), it is characterized in that: the two ends of described valve body (1) are respectively equipped with flange plate, the inner chamber intermediate portion of valve body (1) is provided with valve seat (2), described valve seat (2) is connected to one with valve body (1) by being threaded, the sealing surface of valve seat (2) is made as 60 ° of conical surfaces, described flap (60) is installed in the top of valve seat (2), the sealing surface of flap (60) and valve seat (2) sealing surface are sealed and matched mutually, one end of described valve rod (5) adopts T-slot Placement and flap (60) to be movably connected, the other end of valve rod (5) passes the upper seal support (8) that is installed in the valve gap (11), filler (10), filler gland (14) and hold-down grid (15) are fixed together by engage thread with Stem Mut (21), described valve gap (11) is installed on the middle flanged surface of valve body (1), valve gap (11) is fixed on the valve body (1) by stud (12) and hexagon nut I (13), upper seal support (8) is housed in the axis hole of valve gap (11) from bottom to top successively, filler (10), filler gland (14), hold-down grid (15), thrust ball bearing I (20), Stem Mut (21) and gland (22), the boss of described Stem Mut (21) up and down two ends is equipped with thrust ball bearing I (20) and by gland (22) fixedly in valve gap (11) axis hole, the internal thread of Stem Mut (21) is threaded with valve rod (5) and cooperates together, the top of Stem Mut (21) is fixed together by the gearwheel (26) in flat key and the straight toothed spur gear transmission device (70), and described straight toothed spur gear transmission device (70) is installed on the end face of flange of valve gap (11) and by hexagon head bolt I (24) and valve gap (11) and is connected to one.
2. straight toothed spur gear transmission stop valve according to claim 1, it is characterized in that: described flap (60) comprises main valve clack (3), secondary flap (4) and flap lid (7), the side of described main valve clack (3) is provided with pod apertures (52), the tapering on the primary seal inclined-plane (50) of main valve clack (3) is 60 ° and becomes conical surface seal to cooperate with valve seat (2) sealing surface, the inner chamber place of main valve clack (3) is provided with secondary sealing plane (51) and is sealed and matched mutually with secondary flap (4) sealing surface, the inner chamber of described secondary flap (4) is provided with T-slot and valve rod (5) bottom, and both are connected, the bottom end face of secondary flap (4) is provided with sealing plane, and described flap lid (7) is connected to one by thread connecting mode and main valve clack (3).
3. straight toothed spur gear transmission stop valve according to claim 1, it is characterized in that: described straight toothed spur gear transmission device (70), comprise casing (25), case lid (28), gearwheel (26), small gear (31), rotating shaft (29) and handwheel (33), described casing (25) is fixed on the end face of flange of valve gap (11) by hexagon head bolt I (24), the inner chamber of casing (25) is respectively equipped with gearwheel (26) and small gear (31), described gearwheel (26) is installed in the middle place of inner chamber of casing (25), the endoporus place of gearwheel (26) is provided with the flat key groove and is fixed together by flat key and Stem Mut (21), the alligator of the teeth groove that gearwheel (26) is located and small gear (31) cooperatively interacts and links together, described small gear (31) is installed in the place, right side of casing (25), small gear (31) is fixed together by flat key (30) and rotating shaft (29), described rotating shaft (29) one ends pass small gear (31) and are inserted in the axis hole of casing (25), the other end is connected to one by hexagon thin nut (34) and handwheel (33), rotating shaft (29) is fixed in the casing (25) by case lid (28) and thrust ball bearing II (32), and described case lid (28) is connected to one by hexagon head bolt II (27) and casing (25).
4. straight toothed spur gear transmission stop valve according to claim 1 is characterized in that: the upper end of described valve rod (5) has indication groove (53), and indication groove (53) locates to be provided with positioning block (28).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201320164605 CN203115257U (en) | 2013-04-05 | 2013-04-05 | Straight tooth cylindrical gearing transmission stop valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201320164605 CN203115257U (en) | 2013-04-05 | 2013-04-05 | Straight tooth cylindrical gearing transmission stop valve |
Publications (1)
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CN203115257U true CN203115257U (en) | 2013-08-07 |
Family
ID=48895605
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN 201320164605 Expired - Fee Related CN203115257U (en) | 2013-04-05 | 2013-04-05 | Straight tooth cylindrical gearing transmission stop valve |
Country Status (1)
Country | Link |
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CN (1) | CN203115257U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108644448A (en) * | 2018-07-31 | 2018-10-12 | 宁波万诺宝通机电制造有限公司 | A kind of gas meter motor valve |
CN111237644A (en) * | 2020-03-27 | 2020-06-05 | 荆门美中美阀门有限公司 | Valve linkage control system on high-pressure medium conveying line |
-
2013
- 2013-04-05 CN CN 201320164605 patent/CN203115257U/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108644448A (en) * | 2018-07-31 | 2018-10-12 | 宁波万诺宝通机电制造有限公司 | A kind of gas meter motor valve |
CN111237644A (en) * | 2020-03-27 | 2020-06-05 | 荆门美中美阀门有限公司 | Valve linkage control system on high-pressure medium conveying line |
CN111237644B (en) * | 2020-03-27 | 2024-04-26 | 荆门美中美阀门有限公司 | Valve linkage control system on high-pressure medium conveying line |
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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: 20130807 Termination date: 20140405 |