CN110671508A

CN110671508A - Dual-purpose water-saving stop valve

Info

Publication number: CN110671508A
Application number: CN201910918763.7A
Authority: CN
Inventors: 谢淑静
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-01-10

Abstract

The invention relates to the technical field of valves and discloses a dual-purpose water-saving stop valve which comprises a valve body, wherein water openings on two sides of the valve body are provided with threaded pipe openings, the top of the valve body is fixedly provided with a valve cover, internal threads are arranged inside the valve cover, the middle part of the valve body is provided with a valve seat, the middle part of the valve seat is provided with a water through opening for water through, an external valve rod is inserted into the water through opening, external threads are arranged on the outer surface of the external valve rod, a water outlet and a water inlet are respectively arranged on the right side below the external valve rod, the inner cavity of the external valve rod is connected with an internal valve rod in a sliding manner, and; the invention has two modes of opening and closing the stop valve, and effectively avoids the problem that the normal service life of the valve rod is influenced by thread sliding caused by frequent rotation of the threaded valve rod.

Description

Dual-purpose water-saving stop valve

Technical Field

The invention relates to the technical field of valves, in particular to a dual-purpose water-saving stop valve.

Background

The stop valve is a forced sealing type valve, so when closing the valve, pressure must be applied to the valve clack to force the seal not to leak, when the medium enters the valve from the lower part of the valve clack, the resistance required by the operating force is the friction force between the valve rod and the filler and the thrust generated by the pressure of the medium, the force for closing the valve is larger than the force for opening the valve, so the diameter of the valve rod is larger, otherwise the failure of the valve rod buckling can occur.

The known water-saving stop valve for controlling medium flow rate is characterized by that its driving mechanism is formed from fixed screw surface with locking and flow rate regulating function, gland of sliding groove and screw rod with screw surface sliding teeth, and can make the sliding teeth be rotated on the fixed screw surface, slided and regulated to control quick opening and quick closing of the sliding teeth. Its main advantages are high water-saving effect, easy use, high antiwear nature, long service life (three-six times that of ordinary stop valve), simple maintenance, and no water leakage caused by abrasion.

However, the valve rod is a threaded valve rod, the stop valve needs to be opened and closed frequently to test whether the stop valve is well maintained or not under the condition that a water pipe is broken and needs to be maintained, the valve rod which can be lifted vertically is needed at this time, the opening and closing speed of the valve rod is high, the situation of wire sliding does not exist, the problems that the pressure is low and the sealing effect is poor of the valve rod which can be lifted vertically are solved, and the stable valve rod which can be lifted by threads is needed in daily life to guarantee good sealing performance, so that the dual-purpose water-saving stop valve is provided at present.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a dual-purpose water-saving stop valve which has two stop valve opening and closing modes, and effectively avoids the problem that the normal service life of a valve rod is influenced due to the fact that threads slide when a threaded valve rod is frequently rotated.

The invention discloses a dual-purpose water-saving stop valve which comprises a valve body, wherein water openings on two sides of the valve body are respectively provided with a threaded pipe opening, the top of the valve body is fixedly provided with a valve cover, internal threads are arranged inside the valve cover, the middle part of the valve body is provided with a valve seat, the middle part of the valve seat is provided with a water through opening for water through, an external valve rod is inserted in the water through opening, external threads are arranged on the outer surface of the external valve rod, a water outlet and a water inlet are respectively arranged on the right side below the external valve rod, the inner cavity of the external valve rod is connected with the internal valve rod in a.

The invention discloses a dual-purpose water-saving stop valve, wherein two sliding grooves are formed in the front inner wall and the rear inner wall of an outer valve rod, two pulleys are fixedly mounted on the front outer wall and the rear outer wall of an inner valve rod, and the pulleys are in sliding connection with the sliding grooves.

The invention discloses a dual-purpose water-saving stop valve, wherein a chute is positioned above a valve body, the length of the chute is the same as that of a valve cover, and a pulley is also positioned above the valve body.

The invention relates to a dual-purpose water-saving stop valve, wherein the external thread of an external valve rod is in threaded connection with the internal thread of a valve cover.

The invention relates to a dual-purpose water-saving stop valve, wherein a water outlet is positioned above a water through opening of a valve seat after the valve is closed, and a water inlet is positioned below the water through opening of the valve seat.

The invention relates to a dual-purpose water-saving stop valve, wherein an inner valve rod is a solid rod body, a channel matched with the inner valve rod is arranged inside an outer valve rod, and the bottom of the outer valve rod is also provided with a through hole.

The invention discloses a dual-purpose water-saving stop valve, wherein the top of an inner valve rod is fixedly connected with a push rod, the top of the push rod is fixedly connected with an inner hand wheel, both sides of an outer valve rod are fixedly connected with connecting frames, an outer hand wheel is arranged on a top fixing frame of the connecting frames, a hand rod is fixedly arranged on the front surface of the outer hand wheel, a through hole is formed in the middle of the outer hand wheel, and the inner diameter of the through hole is larger than the outer diameter of the inner hand wheel.

The invention relates to a dual-purpose water-saving stop valve, wherein the outer diameter of an outer valve rod is in clearance fit with the inner diameter of a water through opening, the outer diameter of a sealing rubber valve clack is in interference fit with the inner diameter of the outer valve rod, and the sealing rubber valve clack is elastic rubber.

The invention discloses a dual-purpose water-saving stop valve, wherein a positioning base is arranged at the bottom of a valve body and is positioned right below a water through hole, a groove is formed in the middle of an inner cavity of the positioning base, a protruding positioning lug is arranged at the bottom of an inner valve rod, and the positioning lug is clamped with the groove of the positioning base.

The dual-purpose water-saving stop valve is characterized in that a pressurizing cavity is arranged in an inner cavity of the positioning base, a turbine blade is arranged in the middle of the inner cavity of the pressurizing cavity, and a wheel shaft of the turbine blade is in key connection with a rotating shaft of a motor arranged outside the valve body.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, through the design of the inner valve rod, the outer valve rod, the valve cover, the sealing rubber valve clack, the water outlet, the water inlet, the water through opening, the sliding chute and the pulley, when pressure and sealing performance are required to be enhanced, the outer valve rod is screwed downwards into the valve cover, so that the bottom of the outer valve rod is matched with the positioning base, and then the inner valve rod in the outer valve rod is pressed downwards, so that the valve is closed.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic structural view of a front cross-section in a blocking state;

FIG. 2 is a schematic structural view of a front cross-section in a separated state;

FIG. 3 is a schematic structural view of a second separated state of the front section;

FIG. 4 is a schematic diagram of the right side of the outer valve stem;

FIG. 5 is a schematic view of the left side of the outer valve stem;

FIG. 6 is a schematic diagram of the front structure of the inner valve stem;

FIG. 7 is a schematic top view of the outer and inner valve stems;

FIG. 8 is a schematic view of the structure at A of FIG. 7;

FIG. 9 is a schematic view of the top view of the outer hand wheel and the inner hand wheel;

FIG. 10 is a schematic top view of the positioning base.

In the figure: 1. a valve body; 2. positioning a base; 21. a motor; 22. a pressurizing cavity; 23. a turbine blade; 3. a valve seat; 4. a threaded pipe orifice; 5. a push rod; 6. an inner hand wheel; 7. an outer hand wheel; 71. a handle; 8. a connecting frame; 9. an inner valve stem; 10. an outer valve stem; 11. a valve cover; 12. sealing the rubber valve clack; 13. a water outlet; 14. a water inlet; 15. a water inlet; 16. positioning the bump; 17. a chute; 18. a pulley.

Detailed Description

Example 1: as shown in fig. 1-9, the dual-purpose water-saving stop valve of this embodiment includes a valve body 1, threaded pipe openings 4 are opened at water gaps on both sides of the valve body 1, a valve cover 11 is fixedly disposed at the top of the valve body 1, an internal thread is disposed inside the valve cover 11, a valve seat 3 is disposed in the middle of the valve body 1, a water passage 15 for passing water is opened in the middle of the valve seat 3, an outer valve rod 10 is inserted into the water passage 15, an external thread is disposed on an outer surface of the outer valve rod 10, the external thread of the outer valve rod 10 is in threaded connection with the internal thread of the valve cover 11, a water outlet 13 and a water inlet 14 are respectively opened on the right side below the outer valve rod 10, an inner valve rod 9 is slidably connected to an inner cavity of the outer valve rod 10, a sealing rubber valve flap 12 is fixedly disposed on a rod body of the water outlet 13 and the water inlet 14 at the bottom of.

The difference between example 2 and example 1 is: two sliding grooves 17 are formed in the front inner wall and the rear inner wall of the outer valve rod 10, two pulleys 18 are fixedly mounted on the front outer wall and the rear outer wall of the inner valve rod 9, the pulleys 18 are connected with the sliding grooves 17 in a sliding mode, the sliding grooves 17 are located above the valve body 1, the length of the sliding grooves 17 is the same as that of the valve cover 11, the pulleys 18 are also located above the valve body 1, and the design is beneficial to the fact that the inner valve rod 9 slides in the outer valve rod 10 more conveniently.

The difference between example 3 and example 2 is: interior valve rod 9 is the solid body of rod, the passageway with 9 looks adaptations of interior valve rod is seted up to the inside of outer valve rod 10, the opening has also been seted up to the bottom of outer valve rod 10, the design of the solid body of rod of interior valve rod 9, can effectual separation water liquid, and the weight of interior valve rod 9 has also been increased, thereby valve rod 9 can not be pushed open by rivers in the guarantee (and interior hand wheel 6 on the interior valve rod 9 can be fixed on the wall body or the solid of externally mounted water valve through the bolt, the damping force of cooperation sealing rubber valve clack 12, it has frictional resistance to make to exist between interior valve rod 9 and the 10 inner walls of outer valve rod, can avoid interior valve rod 9 because gravity falls into outer valve rod 10 bottoms.

The difference between example 4 and example 3 is: interior valve rod 9's top fixedly connected with push rod 5, hand wheel 6 in the top fixedly connected with of push rod 5, the equal fixedly connected with link 8 in both sides of outer valve rod 10, the top mount of link 8 is equipped with outer hand wheel 7, the front of outer hand wheel 7 has set firmly hand lever 71, the through-hole has been seted up at the middle part of outer hand wheel 7, the internal diameter of this through-hole is greater than the external diameter of interior hand wheel 6, hand lever 71's design, conveniently rotate outer hand wheel 7, and this design, this can effectively avoid interior hand wheel 6's lift to influence outer hand wheel 7.

The difference between example 2 and example 1 is: the outer diameter of outer valve rod 10 and the mutual clearance fit of the internal diameter of water service hole 15, the mutual interference fit of the outer diameter of sealing rubber valve clack 12 and the internal diameter of outer valve rod 10, sealing rubber valve clack 12 are elastic rubber, and this design makes the shutoff effect of sealing rubber valve clack 12 better.

The difference between example 5 and example 4 is: the bottom of the valve body 1 is provided with a positioning base 2 located right below the water through hole 15, a groove is formed in the middle of an inner cavity of the positioning base 2, a protruding positioning lug 16 is arranged at the bottom of the inner valve rod 9, and the positioning lug 16 is clamped with the groove of the positioning base 2.

The difference between example 6 and example 5 is: position and set up pressure boost chamber 22 in the inner chamber of base 2, the mid-mounting of pressure boost chamber 22 inner chamber has turbine blade 23, turbine blade 23 the shaft and install the pivot key-type connection at the outer motor 21 of valve body 1, this design, can make the water liquid through outlet 13 and water inlet 14 by the pressure boost, thereby also can open under the more than half condition at the valve, increase the pressure of water liquid, thereby detect whether sealed rubber valve clack 12 has the condition of revealing, detect whether intact in the leakproofness, in case the problem of leakproofness appears, water liquid can be along with the gap between sealed rubber valve clack 12 and the outer valve rod 10, thereby spill over in outer valve rod 10 department, the purpose of detecting the inside and outside valve rod leakproofness has been reached.

When the invention is used (working principle), when the valve needs to be opened or closed quickly, the inner valve rod 9 is directly pulled upwards, the pulley 18 connected with the front and the back of the inner valve rod 9 moves in the sliding groove 17 on the inner wall of the outer valve rod 10, so that the sealing rubber valve clack 12 does not block the water outlet 13 and the water inlet 14, water can enter the outer valve rod 10 through the water inlet 14, and because the water is blocked by the inner valve rod 9, the water cannot be sprayed out of the outer valve rod 10 but flows out through the water outlet 13, thereby completing the quick opening and closing of the valve, the thrust required for pushing the valve rod is greatly reduced by inserting the inner valve rod 9 into the outer valve rod 10 in a pulling way, the operation is easier and quicker, and when the valve needs to be opened completely, the outer valve rod 10 is separated from the valve seat 3 by rotating the hand lever 71 of the outer hand wheel 7, thereby the water through 15 is opened, and then the water flow is directly circulated through the water through, through opening and close the valve fast, the effectual condition that often prevents to open or close the valve and cause the smooth silk of screw to quick opening and close at the in-process of maintenance also can effectually play the purpose of water conservation.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a dual-purpose water-saving stop valve, includes valve body (1), threaded pipe mouth (4) have all been seted up at the mouth of a river of valve body (1) both sides, and valve gap (11) have set firmly at the top of valve body (1), and the inside of valve gap (11) is provided with the internal thread, and the middle part of valve body (1) is provided with disk seat (3), and water service mouth (15), its characterized in that) that are used for leading to water are seted up at the middle part of disk seat (3): outer valve rod (10) have been pegged graft in limbers (15), the surface of outer valve rod (10) is provided with the external screw thread, outlet (13) and water inlet (14) have been seted up respectively to the right side of outer valve rod (10) below, the inner chamber sliding connection of outer valve rod (10) has interior valve rod (9), sealed rubber valve clack (12) have set firmly on the body of rod that interior valve rod (9) bottom is located outlet (13) and water inlet (14).

2. A dual-purpose water-saving stop valve according to claim 1, wherein: two sliding grooves (17) are formed in the front inner wall and the rear inner wall of the outer valve rod (10), two pulleys (18) are fixedly mounted on the front outer wall and the rear outer wall of the inner valve rod (9), and the pulleys (18) are connected with the sliding grooves (17) in a sliding mode.

3. A dual-purpose water-saving stop valve according to claim 2, wherein: the sliding groove (17) is located above the valve body (1), the length of the sliding groove (17) is the same as that of the valve cover (11), and the pulley (18) is also located above the valve body (1).

4. A dual-purpose water-saving stop valve according to claim 3, wherein: the external thread of the outer valve rod (10) is in threaded connection with the internal thread of the valve cover (11).

5. A dual-purpose water-saving stop valve according to claim 4, wherein: after the valve is closed, the water outlet (13) is positioned above the water through opening (15) of the valve seat (3), and the water inlet (14) is positioned below the water through opening (15) of the valve seat (3).

6. A dual-purpose water-saving stop valve according to claim 5, wherein: interior valve rod (9) are the solid body of rod, the passageway with interior valve rod (9) looks adaptation is seted up to the inside of outer valve rod (10), the opening has also been seted up to the bottom of outer valve rod (10).

7. A dual-purpose water-saving stop valve according to claim 6, wherein: the improved valve is characterized in that a push rod (5) is fixedly connected to the top of the inner valve rod (9), a hand wheel (6) is fixedly connected to the top of the push rod (5), connecting frames (8) are fixedly connected to the two sides of the outer valve rod (10), an outer hand wheel (7) is arranged on a top fixing frame of the connecting frames (8), a hand rod (71) is fixedly arranged on the front face of the outer hand wheel (7), a through hole is formed in the middle of the outer hand wheel (7), and the inner diameter of the through hole is larger than the outer diameter of the inner hand wheel (6).

8. A dual-purpose water-saving stop valve according to claim 7, wherein: the outer diameter of the outer valve rod (10) is in clearance fit with the inner diameter of the water through opening (15), the outer diameter of the sealing rubber valve clack (12) is in interference fit with the inner diameter of the outer valve rod (10), and the sealing rubber valve clack (12) is elastic rubber.

9. A dual-purpose water-saving stop valve according to claim 8, wherein: the bottom of valve body (1) is provided with and is located positioning base (2) under water service port (15), the inner chamber middle part of positioning base (2) is seted up flutedly, the bottom of interior valve rod (9) is provided with outstanding location lug (16), location lug (16) and the mutual joint of recess of positioning base (2).

10. A dual-purpose water-saving stop valve according to claim 9, wherein: a pressurizing cavity (22) is formed in an inner cavity of the positioning base (2), a turbine blade (23) is installed in the middle of the inner cavity of the pressurizing cavity (22), and a wheel shaft of the turbine blade (23) is connected with a rotating shaft key of a motor (21) installed outside the valve body (1).