CN218895008U

CN218895008U - Float valve

Info

Publication number: CN218895008U
Application number: CN202223453892.XU
Authority: CN
Inventors: 王亚军; 王佳楠
Original assignee: Chongqing Chongqing Water Source Valve Co ltd
Current assignee: Chongqing Chongqing Water Source Valve Co ltd
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2023-04-21
Anticipated expiration: 2032-12-23

Abstract

The utility model provides a float valve, and belongs to the technical field of valves. The ball float valve solves the problem that an existing ball float valve cannot be closed under the condition of too low water pressure. The ball float valve comprises a valve body with a water inlet pipe and a water outlet pipe, a valve cover buckled with the valve body and a leather cup arranged between the valve body and the valve cover, wherein a valve cavity communicated with the water outlet pipe is arranged in the valve body, an annular boss is arranged in the valve cavity, the water inlet pipe is communicated with an inner hole of the annular boss, a port of the annular boss is communicated with the valve cavity, the leather cup is arranged opposite to the port of the annular boss, a valve chamber communicated with the inner hole is arranged between the valve cover and the leather cup, a spring acting on the leather cup is arranged in the valve chamber, a water drain hole communicated with the valve chamber is arranged on the valve body, a glue plug used for plugging the water drain hole is arranged at the water outlet end of the water drain hole, and the glue plug is driven by a floating ball component. When the water pressure of the water supply is particularly low, the control water flow flowing into the valve chamber is not interrupted by the spring, so that the normal use of the valve is ensured, and the problem that the valve cannot be closed under the condition of too low water pressure can be solved.

Description

Float valve

Technical Field

The utility model belongs to the technical field of valves, and relates to a float valve.

Background

The structure of the ball float valve commonly used in the market is mostly the same as that of the ball float valve in the authorized bulletin No. CN201121733Y, and the design that a valve cavity is directly communicated with a water inlet pipe and an inner hole of a boss is directly communicated with a water outlet pipe is adopted. When the float valve is in operation, the pressure of incoming water is applied to the water inlet pipe and the valve cavity wall at any time, particularly when the valve is closed, the valve cavity wall can be subjected to larger impact force, and when the valve cavity wall is seriously broken, the fault can occur. Thus, reinforcement measures must be taken for the valve chamber wall, resulting in increased manufacturing costs. When the water supply pressure of the float valve is particularly low, the inflow of the inflow water into the upper valve chamber through the valve body through hole and the valve cover through hole is interrupted, so that the pressure in the upper valve chamber is insufficient, and the valve cannot be closed.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a float valve which can be effectively closed even when the water pressure of water supply is too low.

The aim of the utility model can be achieved by the following technical scheme:

the utility model provides a ball float valve, includes the valve body that has inlet tube and outlet pipe, the valve gap that sets up with the valve body lock and locates the rubber cup between valve body and the valve gap, be equipped with the valve pocket that communicates with the outlet pipe in the valve pocket, be equipped with annular boss in the valve pocket, inlet tube and annular boss's hole intercommunication, annular boss's port and valve pocket intercommunication, the rubber cup is just to annular boss's port setting, be equipped with the valve chamber with hole intercommunication between valve gap and the rubber cup, be equipped with the spring that acts on the rubber cup in the valve chamber, be equipped with the water drain hole with the valve chamber intercommunication on the valve body, the play water end of water drain hole is equipped with the gluey stifled that is used for shutoff water drain hole, glue stifled by the floater subassembly drive.

When the float valve is opened, the leather cup leaves the port of the annular boss, the incoming water flowing into the water inlet pipe flows to the valve cavity through the port of the annular boss, then the water is externally supplied through the water outlet pipe, and meanwhile, a small part of the incoming water can enter the valve cavity and is timely discharged through the water discharge hole. When the water level reaches a set value, the floating ball assembly rises to drive the rubber plug to plug the water discharge hole, the water in the valve chamber cannot be discharged in time, the water pressure can be increased along with the water level, and the valve is closed until the rubber cup is pushed to plug the port of the annular boss.

When the water supply pressure is particularly low, the leather cup can be close to the annular boss through the arranged spring, so that the water flow flowing into the valve chamber is not interrupted, the port of the annular boss can be normally plugged, and the problem that the valve cannot be closed under low water pressure is solved. Meanwhile, by adopting the mode that the valve cavity is directly communicated with the water outlet pipe and the water inlet pipe is directly communicated with the inner hole, the water pressure in the valve cavity is close to zero at the moment of closing the valve, and the inner wall of the annular boss and the water inlet pipe bear impact force. As the inner wall area of the annular boss is far smaller than that of the valve cavity, the valve has strong water impact resistance and overload capacity, effectively prolongs the service life and has longer quality guarantee period.

In the ball float valve, a pressing plate is arranged in the middle of the leather cup, a small hole is formed in the pressing plate, the valve chamber is communicated with the inner hole through the small hole, one end of the spring acts on the valve cover, and the other end of the spring acts on the pressing plate.

When the float valve is opened, a small amount of water flows into the valve chamber through the small holes on the pressing plate, and the water in the valve chamber is discharged in time through the water discharge holes. When the water level reaches a set value, the floating ball assembly drives the rubber plug to plug the water discharge hole, the water pressure in the valve chamber is increased along with the continuous entering of the water, until the rubber cup is pushed to plug the port of the annular boss, and the floating ball valve is closed.

In order to prevent the pressing plate from falling off, a mounting hole is formed in the middle of the leather cup, the pressing plate is mounted in the mounting hole, and the small hole penetrates through the pressing plate.

In the ball float valve, the tail end of one end of the spring, which is far away from the leather cup, is fixedly connected with a spring rod which is coaxially arranged with the spring, and the spring rod extends out from one end of the spring, which is close to the leather cup, and extends into a small hole of the pressing plate.

In the switching process of the float valve, frequent relative movement exists between the spring rod and the small hole, dirt in the small hole can be removed in time, the small hole is kept smooth, and the removed garbage can be discharged along with water flow through the water discharge hole or the water outlet pipe, so that the valve can work normally.

In the ball float valve, the spring is a tower-shaped spring, the spring rod passes through the small end of the spring, reaches the large end of the spring along the axis of the spring, and is connected with the tail end of the large end of the spring into a whole after being bent for 90 degrees. The spring is made of stainless steel wires.

In the ball float valve, the valve cover is provided with a diversion trench communicated with the valve chamber, and the water inlet end of the water discharge hole is communicated with the diversion trench. When the set water level is not reached, the flowing water in the valve chamber flows into the water discharge hole through the diversion trench and finally flows out of the water discharge hole.

In the ball float valve, a sealing gasket connected with the leather cup into a whole is arranged between the valve cover and the valve body at the position of the diversion trench, a through hole is arranged on the sealing gasket, and the water inlet end of the water discharge hole is communicated with the diversion trench through the through hole.

The sealing property can be enhanced by the gasket, and leakage can be prevented.

In the ball float valve, the valve body is provided with the guide hole which is opposite to the water outlet end of the water discharge hole, the guide hole is internally provided with the sliding block in a sliding fit mode, the glue plug is arranged at one end, close to the water discharge hole, of the sliding block, and the ball float assembly can drive the sliding block to axially move.

When the water level is shallow, the floating ball assembly drives the sliding block to be far away from the water discharge hole, and water in the valve chamber can flow out through the water discharge hole; when the set water level is reached, the floating ball assembly drives the sliding block to be close to the water discharge hole, the glue plug plugs the water outlet end of the water discharge hole, and at the moment, water in the valve chamber cannot flow out of the water discharge hole.

In the above ball float valve, the ball float assembly comprises a hook acting on the slider, a valve rod connected with the hook, and a ball float arranged on the valve rod, wherein the hook is arranged on the valve body through a rotating shaft. The hook head can rotate around the rotating shaft, and then the sliding block is driven to slide in the guide hole.

Face gears are respectively arranged on the hook head and the valve rod, and after the hook head is connected with the valve rod, the two face gears are meshed and locked through bolts. By changing the meshing angle of the two face gears during matching, the water level can be controlled, and the installation requirements of products at various positions can be met. The multiple positions comprise three positions of horizontal position, vertical position (water inlet pipe downward) position and inverted position (water inlet pipe upward) position.

The valve body is provided with an annular step, a pressure-bearing ring is arranged in the annular step, and the leather cup is pressed between the pressure-bearing ring and the valve cover.

Compared with the prior art, the float valve has the following advantages: the valve cavity is directly communicated with the water outlet pipe, and the water inlet pipe is directly communicated with the inner hole, so that the water pressure in the valve cavity is close to zero at the moment of closing the valve, and the inner wall of the annular boss and the water inlet pipe bear impact force. The inner wall area of the annular boss is far smaller than that of the valve cavity, so that the valve has strong water impact resistance and overload capacity, effectively prolongs the service life and has longer quality guarantee period; the closing time of the valve can be changed by adjusting the diameter of the small hole on the pressing plate and the obstruction diameter of the spring, so that the impact force is in a controllable range; the tower-shaped spring is adopted, so that the product is closed and dirt is cleaned under low water pressure; the design of manufacturing the face gears on the hook head and the valve rod is adopted, and the water level can be controlled by changing the meshing angle of the two gears during matching, so that the installation requirements of products at various positions can be met.

Drawings

FIG. 1 is a cross-sectional view of a float valve provided by the present utility model.

Fig. 2 is a schematic structural view of a spring according to the present utility model.

FIG. 3 is a cross-sectional view of the cup provided by the present utility model.

Fig. 4 is a cross-sectional view of a load ring provided by the present utility model.

In the figure, 1, a valve body; 11. a water inlet pipe; 12. a water outlet pipe; 13. a valve cavity; 14. an annular boss; 15. a water discharge hole; 2. a valve cover; 21. a valve chamber; 22. a diversion trench; 3. a leather cup; 31. a sealing gasket; 32. a through hole; 4. a spring; 41. a spring rod; 51. blocking; 52. a slide block; 6. a pressing plate; 61. a small hole; 7. a hook head; 71. face gears; 8. a rotating shaft; 9. and a pressure-bearing ring.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

The ball float valve shown in fig. 1 comprises a valve body 1 provided with a water inlet pipe 11 and a water outlet pipe 12, a valve cover 2 buckled with the valve body 1, and a leather cup 3 arranged between the valve body 1 and the valve cover 2, wherein the water inlet pipe 11 horizontally extends, the water outlet pipe 12 vertically extends, a valve cavity 13 communicated with the water outlet pipe 12 is arranged in the valve body 1, an annular boss 14 vertically extending upwards is arranged in the valve cavity 13, the water inlet pipe 11 is communicated with an inner hole of the annular boss 14, a port of the annular boss 14 is communicated with the valve cavity 13, and the leather cup 3 is positioned above the annular boss 14 and is opposite to the port of the annular boss 14. As shown in fig. 1, an annular step is arranged in the valve body 1, a pressure-bearing ring 9 is arranged in the annular step, the structure of the pressure-bearing ring 9 is as shown in fig. 4, and the leather cup 3 is pressed between the pressure-bearing ring 9 and the valve cover 2.

As shown in fig. 1, a valve chamber 21 is arranged between the valve cover 2 and the cup 3, a pressing plate 6 is arranged in the middle of the cup 3, a small hole 61 is arranged on the pressing plate 6, and the valve chamber 21 is communicated with the inner hole through the small hole 61. A spring 4 is provided in the valve chamber 21 to act on the cup 3, one end of the spring 4 acts on the valve cover 2, and the other end acts on the pressing plate 6. The valve body 1 is provided with a water discharge hole 15 communicated with the valve chamber 21, the water outlet end of the water discharge hole 15 is provided with a glue plug 51 for blocking the water discharge hole 15, and the glue plug 51 is driven by a floating ball assembly.

In order to prevent the platen 6 from falling off, a mounting hole is provided in the middle of the cup 3, the platen 6 is mounted in the mounting hole, and the small hole 61 is provided through the platen 6.

When the float valve is opened, the leather cup 3 leaves the port of the annular boss 14, the incoming water flowing into the water inlet pipe 11 flows to the valve cavity 13 through the port of the annular boss 14 and then is externally supplied through the water outlet pipe 12, and meanwhile, a small amount of the incoming water flows into the valve cavity 21 through the small holes 61 on the pressing plate 6, and the incoming water in the valve cavity 21 is timely discharged through the water discharge hole 15. When the water level reaches the set value, the floating ball assembly drives the glue plug 51 to plug the water drain hole 15, the water pressure in the valve chamber 21 is increased along with the continuous entering of the water until the leather cup 3 is pushed to plug the port of the annular boss 14, and the floating ball valve is closed.

When the water pressure of the water supply is particularly low, the cup 3 can be close to the annular boss 14 through the arranged spring 4, so that the water flow flowing into the valve chamber 21 is not interrupted, the port of the annular boss 14 can be normally plugged, and the problem that the valve cannot be closed under low water pressure is solved. Meanwhile, by adopting the mode that the valve cavity 13 is directly communicated with the water outlet pipe 12 and the water inlet pipe 11 is directly communicated with the inner hole, the water pressure in the valve cavity 13 is close to zero at the moment of closing the valve, and the inner wall of the annular boss 14 and the water inlet pipe 11 bear impact force. The inner wall area of the annular boss 14 is far smaller than that of the valve cavity 13, so that the valve has strong water impact resistance and overload capacity, effectively prolongs the service life and has longer quality guarantee period.

When the float valve is opened, a small amount of inflow water flows into the valve chamber 21 through the small hole 61 on the pressure plate 6, and inflow water in the valve chamber 21 is discharged from the water discharge hole 15 in time. When the water level reaches the set value, the floating ball assembly drives the glue plug 51 to plug the water drain hole 15, the water pressure in the valve chamber 21 is increased along with the continuous entering of the water until the leather cup 3 is pushed to plug the port of the annular boss 14, and the floating ball valve is closed.

The tail end of the spring 4 far away from the leather cup 3 is fixedly connected with a spring rod 41 coaxially arranged with the spring 4, and the spring rod 41 extends out from the end of the spring 4 close to the leather cup 3 and extends into the small hole 61 of the pressing plate 6. In the opening and closing process of the float valve, frequent relative movement exists between the spring rod 41 and the small hole 61, dirt in the small hole 61 can be removed in time, the small hole 61 is kept smooth, and the removed garbage can be discharged through the water discharge hole 15 or the water outlet pipe 12 along with water flow, so that the valve can work normally.

As shown in fig. 2, the spring 4 is a tower-shaped spring 4, the spring rod 41 passes through the small end of the spring 4, reaches the large end position of the spring 4 along the axis of the spring 4, is bent for 90 degrees again, and then is connected with the tail end of the large end of the spring 4 into a whole, and the spring 4 is made of stainless steel wires. The large end of the spring 4 rests against the valve cap 2 and the small end of the spring 4 acts on the pressure plate 6.

As shown in fig. 1, the valve cover 2 is provided with a diversion trench 22 communicated with the valve chamber 21, and the water inlet end of the water discharge hole 15 is communicated with the diversion trench 22. When the set water level is not reached, the flowing water in the valve chamber 21 flows into the drain hole 15 through the diversion trench 22, and finally flows out of the drain hole 15.

As shown in fig. 3, a sealing gasket 31 connected with the leather cup 3 into a whole is arranged between the valve cover 2 and the valve body 1 at the position of the diversion trench 22, a through hole 32 is arranged on the sealing gasket 31, and the water inlet end of the water discharge hole 15 is communicated with the diversion trench 22 through the through hole 32. The sealing property is enhanced by the gasket 31, and leakage is prevented.

As shown in fig. 1, the valve body 1 is provided with a guide hole opposite to the water outlet end of the water discharge hole 15, a sliding block 52 is slidably matched in the guide hole, the glue plug 51 is arranged at one end of the sliding block 52 close to the water discharge hole 15, and the floating ball component can drive the sliding block 52 to axially move. When the water level is shallow, the floating ball assembly drives the sliding block 52 to be far away from the water discharge hole 15, and at the moment, water in the valve chamber 21 can flow out through the water discharge hole 15; when the set water level is reached, the floating ball assembly drives the sliding block 52 to approach the water discharge hole 15, and the glue plug 51 plugs the water outlet end of the water discharge hole 15, so that the water flow in the valve chamber 21 cannot flow out of the water discharge hole 15.

In this embodiment, the floating ball assembly includes a hook 7 acting on the slider 52, a valve rod connected to the hook 7, and a floating ball disposed on the valve rod, where the hook 7 is mounted on the valve body 1 through a rotating shaft 8. The hook 7 can rotate around the rotating shaft 8, so that the sliding block 52 is driven to slide in the guide hole.

Face gears 71 are respectively arranged on the hook head 7 and the valve rod, and after the hook head 7 is connected with the valve rod, the two face gears 71 are meshed and are locked by bolts. By changing the angle of engagement when the two face gears 71 are engaged, not only can the water level be controlled, but also the installation requirements of the product at various positions can be met. The various positions comprise three positions of horizontal position, vertical position (with the water inlet pipe 11 downward) and inverted position (with the water inlet pipe 11 upward).

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims

1. The utility model provides a ball float valve, includes valve body (1) that has inlet tube (11) and outlet pipe (12), valve gap (2) and locating between valve body (1) and valve gap (2) that valve body (1) lock set up, be equipped with in valve body (1) with valve pocket (13) of outlet pipe (12) intercommunication, be equipped with annular boss (14) in valve pocket (13), inlet tube (11) and the hole intercommunication of annular boss (14), the port and the valve pocket (13) intercommunication of annular boss (14), valve gap (3) are just to the port setting of annular boss (14), a serial communication port, be equipped with valve chamber (21) with the hole intercommunication between valve gap (2) and valve gap (3), be equipped with in valve chamber (21) spring (4) of acting on valve gap (3), be equipped with on valve body (1) with drain hole (15) of valve chamber (21) intercommunication, the play water end of drain hole (15) is equipped with glues shutoff (51) that are used for shutoff water hole (15), by the shutoff subassembly drive.

2. A ball float valve according to claim 1, characterized in that the middle part of the cup (3) is provided with a pressing plate (6), the pressing plate (6) is provided with a small hole (61), the valve chamber (21) is communicated with the inner hole through the small hole (61), one end of the spring (4) acts on the valve cover (2), and the other end acts on the pressing plate (6).

3. The ball float valve according to claim 2, wherein the tail end of the spring (4) far away from the leather cup (3) is fixedly connected with a spring rod (41) coaxially arranged with the spring (4), and the spring rod (41) extends out of the end of the spring (4) near the leather cup (3) and into a small hole (61) of the pressing plate (6).

4. A ball float valve according to claim 3, wherein the spring (4) is a tower-shaped spring (4), the spring rod (41) passes through the small end of the spring (4), reaches the large end position of the spring (4) along the axis of the spring (4), and is connected with the tail end of the large end of the spring (4) into a whole after being bent for 90 degrees.

5. A ball float valve according to claim 1, wherein the valve cover (2) is provided with a diversion trench (22) communicated with the valve chamber (21), and the water inlet end of the water discharge hole (15) is communicated with the diversion trench (22).

6. The ball float valve according to claim 5, wherein a sealing gasket (31) connected with the leather cup (3) into a whole is arranged between the valve cover (2) and the valve body (1) at the position of the diversion trench (22), a through hole (32) is arranged on the sealing gasket (31), and the water inlet end of the water discharge hole (15) is communicated with the diversion trench (22) through the through hole (32).

7. The ball float valve according to claim 1, wherein the valve body (1) is provided with a guide hole which is arranged opposite to the water outlet end of the water discharge hole (15), a sliding block (52) is slidably matched in the guide hole, the rubber plug (51) is arranged at one end of the sliding block (52) close to the water discharge hole (15), and the floating ball component can drive the sliding block (52) to axially move.

8. The ball float of claim 7 wherein said ball float assembly comprises a nipple (7) acting on a slider (52), a valve stem connected to said nipple (7), and a ball float disposed on said valve stem, said nipple (7) being mounted to said valve body (1) by a shaft (8).