CN209762311U

CN209762311U - Water hammer-proof ball valve

Info

Publication number: CN209762311U
Application number: CN201920376335.1U
Authority: CN
Inventors: 曾奇风
Original assignee: Individual
Current assignee: Yuhuan Hongri Valve Co ltd
Priority date: 2019-03-22
Filing date: 2019-03-22
Publication date: 2019-12-10
Anticipated expiration: 2029-03-22

Abstract

The utility model discloses a waterproof hammer ball valve relates to ball valve technical field, and its technical scheme main points are: including main part, spheroid and valve rod, the inside water course that offers the water supply and flow through of main part, the spheroid rotates to be connected inside the main part, and the spheroid separates into inhalant canal and exhalant canal with the water course, has seted up the connecting hole on the spheroid, the valve rod rotate connect in the main part and with spheroid fixed connection, set up threaded hole on the lateral wall of main part, threaded hole department threaded connection has waterproof hammer relief valve, the water inlet and the inhalant canal UNICOM of waterproof hammer relief valve. If the inside water pressure of inhalant canal is too big and when being higher than the preset pressure value of water hammer relief valve, water hammer relief valve opens, later, be located inhalant canal partly water via water hammer relief valve discharge for water pressure between spheroid and the inhalant canal reduces, is difficult for appearing damaging because of water pressure is too big in order to guarantee this water hammer ball valve in the use, has promoted the life of this water hammer ball valve to a certain extent.

Description

Water hammer-proof ball valve

Technical Field

The utility model relates to a ball valve technical field, in particular to waterproof hammer ball valve.

Background

At present, chinese patent with publication number CN202327198U discloses a ball valve floats, which comprises a valve body, the inside runner that supplies water to flow through that is provided with of valve body, the inside rotation of valve body is connected with the spheroid, offer on the spheroid and be used for the UNICOM the through-hole of runner, the user can be through rotating opening and close of valve body control runner, it is connected with the valve rod to rotate on the valve body, and the one end of valve rod runs through the valve body and with spheroid fixed connection, the other end protrusion of valve rod in the valve body, when using, the user can control the spheroid through the valve rod and rotate. However, if the water pressure inside the ball valve is too high during use, the angle valve is easily deformed or broken.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a waterproof hammer ball valve, it has the advantage that can automatic pressure release in order to guarantee non-deformable damage even damage.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a waterproof hammer ball valve, includes main part, spheroid and valve rod, the inside water course that offers the water supply and flow through of main part, the spheroid rotate connect in inside the main part, just the spheroid will water course is separated into inhalant canal and exhalant canal, set up the connecting hole that is used for inhalant canal and exhalant canal UNICOM on the spheroid, the valve rod rotate connect in the main part, just the one end of valve rod run through the main part and with spheroid fixed connection, the other end protrusion of valve rod in the outer wall of main part, set up on the lateral wall of main part UNICOM in the screw hole of inhalant canal, screw hole department threaded connection has waterproof hammer relief valve, just the water inlet and inhalant canal UNICOM of waterproof hammer relief valve, waterproof hammer relief valve with sealed the sealing washer between the main part.

Through above-mentioned technical scheme, when needs use this waterproof hammer ball valve, rotate the spheroid through the valve rod so that inhalant canal, connecting hole and exhalant canal UNICOM, later water enters into inside the main part from inhalant canal to discharge from exhalant canal. In the process, if the water pressure inside the water inlet channel is too large and is higher than the preset pressure value of the water hammer safety valve, the water hammer safety valve is opened, and then part of water located in the water inlet channel is discharged through the water hammer safety valve, so that the water pressure between the ball body and the water inlet channel is reduced, the water hammer ball valve is not easy to damage due to the fact that the water pressure is too large in the using process, and the service life of the water hammer ball valve is prolonged to a certain extent. The waterproof hammer relief valve is close to spheroid one side, and the inside pressure value of inhalant canal that waterproof hammer relief valve surveyed is close with the pressure value of spheroid department like this for the pressure release of waterproof hammer relief valve is more accurate, and this waterproof hammer relief valve is difficult because of the too big damage of pressure.

Preferably, a counter bore is formed in the side wall of the main body, and a plug is embedded in the counter bore.

Through above-mentioned technical scheme, when needs examine this ball valve, with the screw hole back-out of waterproof hammer relief valve to install the end cap to the screw hole inside, the inside water of valve body that enters into this moment is difficult for discharging via screw hole department, and the relevant data of the ball valve that detects is comparatively accurate.

Preferably, an annular mounting groove is formed in the side wall of the plug, the central axis of the mounting groove coincides with the central axis of the plug, an O-shaped ring is embedded in the mounting groove, and the outer ring of the O-shaped ring protrudes out of the mounting groove and abuts against the inner wall of the counter bore.

Through above-mentioned technical scheme, when installing the end cap screw thread to the screw hole inside, O type circle supports tightly between end cap outer wall and screw hole inside, and O type circle takes place elastic deformation and seals the clearance between end cap and the screw hole for the inside water of inhalant canal is difficult for flowing out from the clearance between screw hole and the end cap.

Preferably, a straight rod is integrally formed on the side wall of the main body, an accommodating groove is formed in the end portion, facing the water hammer prevention safety valve, of the straight rod, and the inner wall of the accommodating groove is attached to the outer wall of the water hammer prevention safety valve.

Through above-mentioned technical scheme, set up the straight-bar in the main part and can support the waterproof hammer relief valve for the waterproof hammer relief valve is difficult for taking place to rock in the use, and makes the connection between waterproof hammer relief valve and the valve body become comparatively stable.

preferably, the handle is fixedly connected to the end portion, protruding out of the main body, of the valve rod, the stop blocks used for abutting against the straight rod are integrally formed on the side wall of the handle, and the stop blocks are distributed on two sides of the handle symmetrically.

Through the technical scheme, when the ball valve is required to be opened and closed, the valve rod and the ball body are only required to be driven to rotate through the handle. When this ball valve is closed to needs, only need control handle rotate, it can to the straight-bar is contradicted to arbitrary dog on the handle, just so when the installation just be difficult for appearing because of the condition that the interval undersize between handle and the wall need be changed the ball valve, promoted the suitability of this ball valve to a certain extent.

Preferably, a placing groove is formed in the end portion, facing the handle, of the straight rod, a spring is arranged in the placing groove, a steel ball is connected to the end portion of the spring, a positioning groove for the steel ball to extend into is formed in the side wall of the handle, and when the central axis of the connecting hole is overlapped with the central axis of the water inlet channel, the steel ball is tightly abutted to the inner wall of the positioning groove under the elastic action of the spring.

Through above-mentioned technical scheme, when the handle rotates to this ball valve and is in the open mode, the constant head tank on hand is relative with the standing groove on the straight-bar, and the steel ball enters into the standing groove inside and supports tightly in the inner wall of standing groove under the effect of spring this moment, and the user need increase thrust and just can promote the handle and rotate this moment, and the user can be in the state of opening completely through the change perception of this force.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment, which is mainly used for showing the appearance of the embodiment;

FIG. 2 is a schematic sectional view of the embodiment, which is mainly used for showing the components of the embodiment;

FIG. 3 is an enlarged view of portion A of FIG. 2;

Fig. 4 is a schematic sectional view of the water hammer prevention safety valve, which is mainly used for showing the components of the water hammer prevention safety valve.

Reference numerals: 1. a main body; 2. a sphere; 3. a valve stem; 4. a water channel; 41. a water inlet channel; 42. a water outlet channel; 5. connecting holes; 6. a threaded hole; 7. a water hammer resistant safety valve; 8. a seal ring; 9. a counter bore; 10. a plug; 11. mounting grooves; 12. an O-shaped ring; 13. a straight rod; 14. accommodating grooves; 15. a handle; 16. a stopper; 17. a placement groove; 18. a spring; 19. steel balls; 20. positioning a groove; 21. a valve body; 22. a flow channel; 221. an inlet; 222. an outlet; 223. a control chamber; 23. a valve core; 231. a piston; 232. a sealing rod; 2321. a response segment; 2322. a sealing section; 2323. a guide section; 233. a second spring; 24. a first spring; 25. a through hole; 26. a top rod; 261. a connecting section; 262. a triggering section; 27. a sealing gasket; 28. a ring groove; 29. a rubber ring; 30. a front valve seat; 31. a rear valve seat; 32. a limiting groove; 33. a limiting column; 34. a rubber seal ring; 35. a groove; 36. a guide plate; 37. a water through hole; 38. a contact ring; 39. and a water through hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A waterproof hammer ball valve, as shown in fig. 1 to 4, comprises a main body 1, a ball body 2 and a valve rod 3.

The water channel 4 has been seted up to the inside coaxial of main part 1, and the both ends of water channel 4 all run through main part 1. The counter bore 9 has been seted up on the lateral wall of main part 1, and the radial setting of main part 1 is followed to counter bore 9, and the inside end cap 10 that is equipped with that inlays of counter bore 9 has seted up annular mounting groove 11 on the lateral wall of end cap 10, and the inside cover of mounting groove 11 is equipped with O type circle 12, and the outer lane protrusion of O type circle 12 is in the notch of mounting groove 11 and support tightly in the inner wall of counter bore 9.

Still set up the screw hole 6 that UNICOM in water course 4 on the lateral wall of main part 1, screw hole 6 sets up along the radial of main part 1, and screw hole 6 and counter bore 9 symmetric distribution in the both sides of main part 1. The threaded hole 6 is internally and threadedly connected with a water hammer prevention safety valve 7, and a water inlet of the water hammer prevention safety valve 7 is communicated with the water channel 4. When the inside water pressure of water course 4 is great, waterproof hammer relief valve 7 is opened, and the inside hydroenergy of water course 4 can discharge to the external world via waterproof hammer relief valve 7 this moment for the inside water pressure of water course 4 can reduce, and this waterproof hammer ball valve is difficult for appearing warping the damaged condition even because of water pressure is too big. A sealing ring 8 is sealed between the water hammer prevention safety valve 7 and the main body 1, and the sealing ring 8 can seal the gap between the water hammer prevention safety valve 7 and the main body 1, so that water in the water channel 4 is not easy to flow out from the gap between the main body 1 and the water hammer prevention safety valve 7.

Integrated into one piece has straight-bar 13 on the lateral wall of main part 1, and straight-bar 13 is located the side of waterproof hammer relief valve 7, and straight-bar 13 offers the holding tank 14 that supplies waterproof hammer relief valve 7 to put into towards on the lateral wall of waterproof hammer relief valve 7, and when waterproof hammer relief valve 7 entered into holding tank 14 inside, the lateral wall of waterproof hammer relief valve 7 contradicted in the inner wall of holding tank 14. The end face, away from the water hammer safety valve 7, of the straight rod 13 is provided with a placing groove 17, the depth direction of the placing groove 17 is perpendicular to the length direction of the straight rod 13, a spring 18 is fixedly connected inside the placing groove 17, and the stretching direction of the spring 18 is parallel to the depth direction of the placing groove 17. The end part of the spring 18, which is far away from the water hammer prevention safety valve 7, is fixedly connected with a steel ball 19, and when the spring 18 is in a balanced state, the steel ball 19 protrudes out of the notch of the placing groove 17.

The ball 2 is rotatably connected to the inside of the main body 1, and the ball 2 is divided into a water inlet passage 41 and a water outlet passage 42. The ball 2 is provided with a connecting hole 5, and the connecting hole 5 is used for communicating the water inlet channel 41 with the water outlet channel 42.

valve rod 3 rotates to be connected on main part 1, and the one end of valve rod 3 run through main part 1 and with 2 fixed connection of spheroid, the other end protrusion of valve rod 3 in the outer wall of main part 1, and valve rod 3 protrusion is connected with handle 15 on the tip of main part 1, and in the use, the user can drive spheroid 2 through handle 15 and rotate to this control is opening and close of this waterproof hammer ball valve. Two stoppers 16 are integrally formed on the side wall of the handle 15, and the two stoppers 16 are symmetrically distributed around the handle 15. When the handle 15 is rotated to a state that the water hammer-proof ball valve is closed, one of the stoppers 16 abuts against the side wall of the straight rod 13. The side wall of the handle 15 is further provided with a positioning groove 20, the positioning groove 20 is located between the two stoppers 16, when the waterproof hammer ball valve is in a completely opened state when the handle 15 rotates, the positioning groove 20 is opposite to the placing groove 17, and at the moment, the steel ball 19 enters the positioning groove 20 under the action of the spring 18 and abuts against the inner wall of the positioning groove 20.

The water hammer prevention safety valve 7 includes a valve body 21, a flow passage 22 having a circular orifice shape is formed through the valve body 21, and a central axis of the flow passage 22 coincides with a central axis of the valve body 21. The flow passage 22 includes an inlet 221 for fluid flow into the valve body 21, an outlet 222 for fluid flow out of the valve body 21, and a control chamber 223 communicating the inlet 221 and the outlet 222. The inner diameter of the control chamber 223 is greater than the inner diameter of the inlet 221 and the inner wall of the control chamber 223 cooperates with the inner wall of the inlet 221 to form a shoulder.

The valve body 21 includes a front valve seat 30 and a rear valve seat 31. The inlet 221 and the control chamber 223 are disposed through the front seat 30, and the outlet 222 is disposed through the rear seat 31. The inner wall of the front valve seat 30 is provided with internal threads, the outer wall of the rear valve seat 31 is provided with external threads, and the front valve seat 30 is in threaded connection with the rear valve seat 31 with the external threads through the internal threads. A sealing gasket 27 is sealed between the front valve seat 30 and the rear valve seat 31 to ensure that the fluid inside the valve body 21 is not easy to flow out from the gap between the front valve seat 30 and the rear valve seat 31 during use.

The control chamber 223 is internally provided with the valve core 23, the spring 18I and the push rod 26, and the valve core 23, the spring 18I and the push rod 26 are sequentially arranged along the inlet 221 to one side of the outlet 222.

The valve body 23 includes a piston 231 slidably coupled to the inside of the control chamber 223, a seal rod 232 slidably coupled to the piston 231, and a second spring 18 coupled between the piston 231 and the seal rod 232.

The outer wall of the piston 231 is provided with a ring groove 28, and the central axis of the ring groove 28 coincides with the central axis of the piston 231. In the present embodiment, the number of the ring grooves 28 is two, and the two ring grooves 28 are distributed axially along the piston 231. A rubber ring 29 is embedded in each ring groove 28, and the outer ring of the rubber ring 29 protrudes out of the notch of the ring groove 28 and is abutted against the inner wall of the control cavity 223. The rubber ring 29 protruding from the notch of the ring groove 28 can seal the gap between the inner wall of the control chamber 223 and the outer wall of the piston 231, so that the liquid at the inlet 221 is not easy to flow from the gap between the inner wall of the control chamber 223 and the outer wall of the piston 231 to the outlet 222.

A through hole 25 is formed in the center of the piston 231 in a penetrating manner, the central axis of the through hole 25 coincides with the central axis of the piston 231, and the through hole 25 is used for communicating the control cavities 223 on the two sides of the piston 231.

The end of the piston 231 facing the inlet 221 is provided with a groove 35, the groove 35 is communicated with the through hole 25, and the central axis of the groove 35 coincides with the central axis of the piston 231. An annular interference ring 38 is integrally formed on an inner wall of the groove 35 opposite to the inlet 221, the annular interference ring 38 surrounds the through hole 25 toward the opening on the inlet 221 side, and an outer diameter of the interference ring 38 is gradually reduced toward the inlet 221 side. The notch of the groove 35 facing the inlet 221 is in threaded connection with a guide plate 36, the guide plate 36 is provided with a plurality of water through holes 37, and the plurality of water through holes 37 are circumferentially and uniformly distributed by taking the axis of the guide plate 36 as the center. A guide hole (not shown) for the sealing rod 232 to extend into is opened at the center of the guide plate 36.

The sealing rod 232 includes a guiding segment 2323, a sealing segment 2322 and a responding segment 2321 which are fixedly connected in sequence from the inlet 221 to the outlet 222 side. The guide segment 2323 extends into the guide hole and is connected with the guide hole in a sliding manner. The outer diameter of the sealing segment 2322 is larger than the outer diameter of the guiding segment 2323, and the sealing segment 2322 is used for covering the opening of the through hole 25 on the side facing the inlet 221. The end surface of the sealing segment 2322 facing away from the inlet 221 is adhered with a rubber sealing ring 348, and when the sealing segment 2322 slides to seal the opening of the through hole 25 facing towards the inlet 221, the rubber sealing ring 348 can seal the sealing segment 2322 with the inner wall of the groove 35 facing towards the inlet 221. The response segment 2321 passes through the through hole 25, and the response segment 2321 passes through the through hole 25 and protrudes out of the end of the through hole 25 toward the outlet 222.

One end of the second spring 18 is fixedly connected to the end surface of the sealing segment 2322 away from the inlet 221, and the other end of the second spring 18 is sleeved outside the abutting ring 38 and is fixedly connected to the inner wall of the groove 35. In use, the spring 18 exerts a spring force on the sealing rod 232 to direct to the inlet 221 side, so that the sealing segment 2322 abuts against the guide plate 36.

The stem lifter 26 includes a connection section 261 screw-coupled to the inside of the valve body 21, and a trigger section 262 fixedly coupled to the connection section 261. The connecting section 261 is provided with a water through hole 39, the water through hole 39 extends along the axial direction of the connecting section 261, and the water through hole 39 is used for communicating the control cavity 223 and the outlet 222. The number of the water through holes 39 is several, and the several water through holes 39 are circumferentially and uniformly distributed with the axis of the connecting section 261 as the center. The triggering segment 262 is cylindrical, and the central axis of the triggering segment 262 coincides with the central axis of the connecting segment 261, and the triggering segment 262 protrudes to the inlet 221 side and is used for colliding with the responding segment 2321.

One end of the first spring 18 is sleeved on the triggering section 262, an inner ring of the first spring 18 abuts against an outer wall of the triggering section 262, and the other end of the first spring 18 is connected to the piston 231. The spring 18 applies a spring force to the piston 231 directed to the side of the inlet 221 during use, so that the piston 231 abuts against the shoulder.

The end part of the piston 231 facing the top rod 26 is provided with a limiting groove 32 for the first spring 18 to extend into, the center of the limiting groove 32 is integrally formed with a limiting column 33, the limiting column 33 is penetrated through by the through hole 25, the limiting column 33 penetrates through the middle part of the first spring 18, and the outer wall of the limiting column 33 is abutted against the inner ring of the first spring 18.

The specific use process of the water hammer prevention safety valve 7 is as follows: when in use, the inlet 221 of the safety valve is connected with a water pipe, and liquid in the water pipe enters the flow passage 22 under the action of pressure. When the pressure applied by the liquid to the sealing rod 232 is smaller than the elastic force applied by the spring 18 to the sealing rod 232, the sealing rod 232 cannot complete the sealing of the through hole 25, and the liquid entering from the inlet 221 can flow to the outlet 222 side through the gap between the sealing rod 232 and the through hole 25, and finally flows out from the outlet 222. At the same time, the liquid flowing from the water pipe into the control chamber 223 can push the water pipe and the air in the flow passage 22 to be discharged from the outlet 222, thereby completing the air discharge of the water pipe. When the pressure exerted by the liquid on the sealing rod 232 is greater than the pressure exerted by the spring 18 on the sealing rod 232, the sealing rod 232 seals the through hole 25, so that the liquid at the inlet 221 cannot flow to the outlet 222. At this time, if the liquid pressure inside the water pipe continues to increase, the liquid at the inlet 221 can push the valve body 23 to move toward the outlet 222. In the process that the valve core 23 moves to one side of the outlet 222, the volume of the part of the flow passage 22 communicated with the water pipe is increased, and the liquid pressure is gradually reduced, so that the purpose of unloading and pressure relief is achieved. When the valve body 23 moves until the end of the plunger 26 abuts against the seal rod 232, the plunger 26 restricts the movement of the seal rod 232, so that relative movement is generated between the seal rod 232 and the piston 231, and the seal of the through hole 25 by the seal rod 232 is released. At this time, the liquid at the inlet 221 is discharged through the gap between the sealing rod 232 and the through hole 25, so as to achieve the purpose of discharging liquid and relieving pressure.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.

Claims

1. The utility model provides a water hammer prevention ball valve, includes main part (1), spheroid (2) and valve rod (3), main part (1) is inside to be seted up water course (4) that the water supply flows through, spheroid (2) rotate connect in main part (1) is inside, just spheroid (2) will inhalant canal (41) and exhalant canal (42) are separated into in water course (4), offer connecting hole (5) that are used for inhalant canal (41) and exhalant canal (42) UNICOM on spheroid (2), valve rod (3) rotate connect in main part (1), just the one end of valve rod (3) runs through main part (1) and with spheroid (2) fixed connection, the other end protrusion in the outer wall of main part (1), characterized by: the side wall of the main body (1) is provided with a threaded hole (6) communicated with the water inlet channel (41), the threaded hole (6) is in threaded connection with a waterproof hammer safety valve (7), a water inlet of the waterproof hammer safety valve (7) is communicated with the water inlet channel (41), and a sealing ring (8) is sealed between the waterproof hammer safety valve (7) and the main body (1).

2. The waterproof hammer ball valve of claim 1, wherein: a counter bore (9) is formed in the side wall of the main body (1), and a plug (10) is embedded in the counter bore (9).

3. The waterproof hammer ball valve of claim 2, wherein: annular mounting groove (11) have been seted up on the lateral wall of end cap (10), just the central axis of mounting groove (11) with the central axis coincidence of end cap (10), mounting groove (11) inside inlays and is equipped with O type circle (12), just the outer lane protrusion of O type circle (12) in mounting groove (11) and contradict in the inner wall of counter bore (9).

4. The waterproof hammer ball valve of claim 1, wherein: a straight rod (13) is integrally formed on the side wall of the main body (1), an accommodating groove (14) is formed in the end portion, facing the water hammer prevention safety valve (7), of the straight rod (13), and the inner wall of the accommodating groove (14) is attached to the outer wall of the water hammer prevention safety valve (7).

5. The waterproof hammer ball valve of claim 4, wherein: still include handle (15), handle (15) fixed connection in valve rod (3) protrusion in on the tip of main part (1), integrated into one piece has on the lateral wall of handle (15) and is used for conflicting dog (16) of straight-bar (13), the figure of dog (16) is two and symmetric distribution in handle (15) both sides.

6. The waterproof hammer ball valve of claim 5, wherein: the handle is characterized in that a placing groove (17) is formed in the end portion, facing the handle (15), of the straight rod (13), a spring (18) is arranged inside the placing groove (17), a steel ball (19) is connected to the end portion of the spring (18), a positioning groove (20) for the steel ball (19) to stretch into is formed in the side wall of the handle (15), and when the central axis of the connecting hole (5) is overlapped with the central axis of the water inlet channel (41), the steel ball (19) abuts against the inner wall of the positioning groove (20) under the elastic action of the spring (18).