TWI651487B - Water connector with vacuum breaking and backstop function - Google Patents

Abstract

A water joint having a vacuum breaking and a backstop function includes: a pipe member formed with at least one vent, and the pipe member is provided with a stopper at one end of the vent, the pipe member forming a water inlet end and a water outlet a retaining ring is formed between the water outlet end and the venting opening, a resilient valve body is formed with a ring ring, and the ring ring extends to one end with a tube portion, and the tube portion is retracted to form two inclined portions and a line shape. a gap, the elastic valve body is disposed in the pipe member, and the ring ring and the pipe portion are respectively pressed against the blocking portion of the pipe member and the retaining ring, and the vacuum suction force generated in the water outlet end is the pipe The elastic deformation of the part allows the vent to communicate with the water outlet end, and the external air is introduced to achieve the function of vacuum breaking, and the inclined surface can withstand the reverse water pressure to close the linear gap and the vent, thereby preventing The effect of vacuum formation and water flow is reversed.

Description

Water connector with vacuum breaking and backstop function

The invention relates to a water flow pipeline connection structure, in particular to a water joint with a vacuum breaking and a backstop function.

According to the water pipeline or the water equipment, the water pipeline or the water equipment may cause damage such as flaws and cracks in the water pipeline, so as to achieve the protection water pipeline or water equipment. The safety of the water pipeline is equipped with a vacuum breaking connector structure, and when the above occurs, the vacuum effect can be eliminated by the automatic opening of the vacuum breaking connector structure, and the conventional vacuum breaking connector structure is not limited. It is caused by the displacement of the valve plate or the steel ball through the direction of water pressure and water flow, thereby forming the function of water flow and external air introduction. However, it is not difficult to find out that the above-mentioned conventional structure has some shortcomings. It is as follows: the vacuum breaking connector structure is pressed against the end of the valve plate or the steel ball through the spring, thereby forming a ventilation effect when the water pressure in the forward water pressure and the suction state in the vacuum state are generated, so there is The complexity of the structure and the high production cost, and the complicated structure will also cause the vacuum to break the joint structure or the probability of water leakage. Service of technical problems.

In view of this, the inventors have been engaged in the manufacturing development and design experience of related products for many years, and after detailed design and careful evaluation of the above objectives, the present invention has finally become practical.

The technical problem to be solved by the present invention lies in the above-mentioned existing Missing, providing a water connector with vacuum breaking and backstop function.

A pipe member is formed with a water inlet end and a water outlet end, and the pipe member is used for the butt pipe to flow the water flow from the water inlet end to the water outlet end, and at least a vent hole penetrating the outside is opened in the middle portion of the pipe member, and the pipe member is inside a retaining portion is formed between the water inlet end and the venting opening, and a retaining ring is formed between the water outlet end and the venting opening, a resilient valve body is formed with a ring ring, and the ring ring extends toward one end. a tube portion, wherein the elastic valve body is formed in a flat shape at the end of the tube portion, and has two inclined portions, and the two inclined portions are formed to form a linear gap, and the elastic valve body is installed in the tube member. The elastic valve body is pressed against the blocking portion of the tubular member and the retaining ring by the ring and the tubular portion, and the linear gap of the elastic valve body faces the water outlet end of the tubular member.

Wherein, the elastic valve body is symmetrically convexly provided with at least one supporting portion on the two inclined portions, and the supporting portion is pressed against the inner wall of the tubular member, thereby controlling the deformation direction and the deformation amount of the elastic valve body.

Wherein, the support portion is in a sheet shape perpendicular to the linear gap, and an outer edge of the support portion is aligned with a circular surface of the tube portion.

Wherein, the water inlet end of the pipe member is formed with an internal thread, and the water outlet end is formed with an external thread, and the pipe member is connected to the external thread by the internal thread.

Wherein, the water inlet end of the pipe member has a screw hole, and the screw hole penetrates to the internal thread, and the screw hole lock is provided with a bolt, and the bolt is inserted into the pipe member for pressing the pipe.

Wherein, the elastic valve body is made of rubber or silicone material.

The pipe member forms a partial contact with the pipe portion of the elastic valve body through the retaining ring, and a gas chamber is formed between the pipe member and the elastic valve body, and the air chamber is allowed to easily enter the pipe member through the air chamber. .

A first main object of the present invention is that the elastic valve body is pressed against the stopping portion of the tubular member by the ring, and the tubular portion of the elastic valve body is in contact with the retaining ring of the tubular member to form the inclined surface portion. The tip end faces the water outlet end of the pipe member, and when the water is used, the slope portion is pushed away by the water pressure, so that the water flow can form a water state through the line gap, and the vacuum suction generated in the water outlet end when the water discharge is stopped, The tube portion of the elastic valve body is deformed to open the vent opening and the water outlet end, thereby introducing air to achieve the effect of vacuum breaking, and when the water flow is reversed, the water pressure is applied to the inclined surface to close the linear gap, and The tube portion of the elastic valve body is also more closely attached to the retaining ring of the pipe member, thereby achieving the function of effectively stopping water.

A second main object of the present invention is that the elastic valve body is disposed inside the pipe member and is configured to cooperate with the direction of the linear gap through the inclined surface portion of the elastic valve body to achieve the functions of forward water flow reverse flow and reverse water flow back. The elastic deformation of the elastic valve body also allows external air to enter the inside of the pipe member through the vent hole, thereby achieving the functions of vacuum breaking and backflow water stopping through a simple structure, thereby achieving both practicality and cost reduction.

Other objects, advantages and novel features of the invention will be apparent from the description and appended claims.

[this creation]

10‧‧‧ Pipe fittings

11‧‧‧ water inlet

111‧‧‧ internal thread

12‧‧‧ water outlet

121‧‧‧External thread

13‧‧‧ vent

14‧‧‧stops

15‧‧ ‧ retaining ring

16‧‧‧ screw holes

17‧‧‧ bolt

18‧‧‧ air chamber

20‧‧‧Flexible valve body

21‧‧‧ ring

22‧‧‧ Department of Tubes

23‧‧‧Bevel

24‧‧‧Linear gap

25‧‧‧Support

Figure 1 is a perspective view of the present invention.

Figure 2 is a perspective exploded and partial cross-sectional view of the present invention.

Figure 3 is a perspective view of the elastic valve body of the present invention.

Figure 4 is a cross-sectional view (1) of the present invention.

Figure 5 is a cross-sectional view (2) of the present invention.

Figure 6 is a schematic view of the present invention in a water supply state.

Figure 7 is a cross-sectional view showing the water supply state of the present invention.

Figure 8 is a cross-sectional view of the present invention in a vacuum breaking operation.

Fig. 9 is a schematic view showing the vacuum breaking operation of the present invention.

Figure 10 is a schematic illustration of the present invention in a countercurrent flow stop state.

In order to enable your review committee to have a better understanding and understanding of the purpose, features and effects of the present invention, please refer to the following [detailed description of the drawings] as follows: First, please continue from Figure 1 to Figure 5 In view of the present invention, a water connector having a vacuum breaking and a backstop function includes a tube member 10 and an elastic valve body 20, and a tube member 10 is formed with a water inlet end 11 and a water outlet end 12, and the tube member 10 is used for The butt line flows the water flow from the water inlet end 11 to the water outlet end 12, and at least a venting opening 13 is formed through the outer portion of the pipe member 10, and the inner wall of the pipe member 10 is at the water inlet end 11 and the venting port 13 A stop portion 14 is formed between the water outlet end 12 and the vent opening 13 , and the water inlet end 11 of the tube member 10 is formed with an internal thread 111 , and the water outlet end 12 is formed with an outer portion a threaded portion 121, the tube member 10 is connected to the external thread 121 by the internal thread 111, and the water inlet end 11 of the tube member 10 defines a screw hole 16 through which the screw hole 16 extends. The screw hole 16 is locked with a bolt 17 and is inserted into the pipe member 10 for the bolt 16 to be used for The elastic valve body 20 is formed of a rubber or silicone material. The elastic valve body 20 is formed with a ring 21, and the ring 21 extends to one end with a tube portion 22, and the elastic valve body 20 is The end of the tube portion 22 is formed in a flat shape and has two inclined portions 23, and a linear gap 24 is formed by the two inclined portions 23, and the elastic valve body 20 is installed in the tube member 10 to allow the elastic valve. The body 20 is separated from the tube portion 22 by the ring 21 and the tube portion 22, respectively Pressing the blocking portion 14 of the pipe member 10 and the retaining ring 15 to make the elastic valve body 20 not communicate with the water outlet end 12 in an unelastically deformed state, and the elastic valve body 20 is linear The gap 24 faces the water outlet end 12 of the pipe member 10, and the linear gap 24 of the elastic valve body 20 is expanded by the forward water pressure to form water, and the vacuum suction generated in the water outlet end 12 when the water is stopped is made. The tube portion 22 of the valve body 20 allows the vent opening 13 to communicate with the water outlet end 12 in an elastically deformed state, thereby introducing external air to a vacuum breaking function, and the tube member 10 is formed through the retaining ring 15 to form the elastic valve body 20. A partial contact of the tube portion 22 and a gas chamber 18 is formed between the tube member 10 and the elastic valve body 20, through which the outside air is easily introduced into the tube member 10, and the elastic valve body 20 is At least one supporting portion 25 is symmetrically protruded from the inclined surface portion 23, and the supporting portion 25 is pressed against the inner wall of the pipe member 10, thereby controlling the deformation direction and the deformation amount of the elastic valve body 20, and the supporting portion 25 is The sheet is perpendicular to the linear gap 24, and the outer edge of the support portion 25 is aligned with the tube portion 22 A circular surface, when the elastic valve body portion 20 to the inclined surface 23 of the reverse withstand pressure of the linear gap 24 and closed using the vent 13, and serve to break the vacuum flow having a non-return effect.

For the actual use, please refer to Fig. 6, 7, 8, and 9 as shown in Fig. 3. The elastic valve body 20 is placed by the water inlet end 11 of the pipe member 10, so that the elastic valve body 20 is The linear gap 24 faces the water outlet end of the pipe member 10, and is pressed against the stopper portion 14 of the pipe member 10 by the ring 21 of the elastic valve body 20, while the pipe portion 22 of the elastic valve body 20 abuts against the pipe member. a retaining ring 15 of 10, a gas chamber 18 communicating with the vent 13 is formed between the elastic valve body 20 and the tubular member 10, and a water inlet end 11 of the tubular member 10 is connected to the tube at one end of the water through the internal thread 111. And the bolt 17 can be locked into the screw hole 16 to abut the pipeline, and the water outlet end 12 of the pipe member 10 is connected with the external thread 121 to the pipe at one end of the water outlet, so that the pipe member 10 is connected to the water pipe. When the water flows in the forward direction, the water flows from the water inlet end 11 into the pipe member 10 and passes through the elastic valve body. The ring 21 of the 20 and the tube portion 22 generate hydraulic pressure on the inner surfaces of the two inclined surfaces 23, so that the inclined surface portion 23 can be elastically deformed to open the linear gap 24, and the water flow can pass through the line The gap 24 is discharged from the water outlet end 12 of the pipe member 10. When the water discharge is stopped, a negative pressure state is formed in the water outlet end 12, and a vacuum suction force is generated on the inclined surface portion 23 of the elastic valve body 20, thereby stretching the elasticity. The inclined portion 23 of the colloid 20 is more easily deformed. At this time, the tube portion 22 is elastically deformed and is electrically connected to the air chamber 18 in an elliptical shape, and the external air is taken in by the vent 13 to instantaneously achieve the effect of vacuum breaking, thereby reducing the water outlet end. 12 pipeline pressure, and after the pressure reduction, the elastic valve body 20 is used to restore the unventilated state, so that the pipeline or the water equipment does not cause the rupture of the water, and the utility model has the function of protecting the water pipeline. As shown in FIG. 10, when the water flow is reversed, the water flow flows from the water outlet end 12 of the pipe member 10 to the elastic valve body 20, and the water pressure acts on the outer surfaces of the two inclined surface portions 23, and the water pressure is allowed to pass. The elastic valve body 20 remains completely closed to the linear gap 24 The water stop state, thereby achieving the function of effective backstop, and in the water stop state, the tube portion 22 of the elastic valve body 20 is also more closely attached to the retaining ring 15 of the tube member 10, thereby effectively preventing the water flow from being ventilated The leakage of the mouth 13 occurs.

With the structure of the above specific embodiment, the following benefits can be obtained: (1) the elastic valve body 20 is pressed against the stopper portion 14 of the pipe member 10 by the ring 21, and the pipe portion of the elastic valve body 20 is used. 22 abuts against the retaining ring 15 of the tube member 10, so that the tip end portion of the inclined surface portion 23 faces the water outlet end 12 of the tube member 10, and the water inclined surface 23 is pushed away by water pressure when water is used, so that the water flow can pass through the line shape. The gap 24 forms a water outlet state, and when the water suction is generated in the water outlet end 12 when the water is stopped, the tube portion 22 of the elastic valve body 20 is deformed to open the vent port 13 and the water outlet end 12, thereby introducing air into the air. The effect of the vacuum breaking, when the water flow is reversed, is applied to the inclined surface portion 23 by the water pressure to close the linear gap 24, and the tube portion 22 of the elastic valve body 20 is also closer to the The retaining ring 15 of the pipe member 10, thereby achieving the function of effectively stopping the water; (2) the elastic valve body 20 is disposed inside the pipe member 10 and transmits the direction of the inclined portion 23 and the linear gap 24 of the elastic valve body 20. The function of the forward water flow and the reverse water flow back is achieved, and the elastic deformation of the elastic valve body 20 allows the outside air to enter the inside of the pipe member 10 through the vent 13 thereby achieving vacuum breaking and counterflow prevention through a simple structure. The function is both practical and cost-effective.

In summary, the present invention has indeed achieved a breakthrough structural design, and has improved invention content, and at the same time, can achieve industrial utilization and progress, and the present invention is not found in any publication, but also novel, when In accordance with the provisions of the relevant laws and regulations of the Patent Law, the application for invention patents is filed according to law, and the examination authority of the bureau is required to grant legal patent rights.

The above is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto; that is, the equivalent variations and modifications made by the scope of the present invention should still belong to the present invention. Within the scope of the patent.

Claims (7)

A water joint with a vacuum breaking and backstop function includes: a pipe member forming a water inlet end and a water outlet end, and the pipe member is used for the butt pipe to make the water flow from the water inlet end to the water outlet end And at least one venting opening is formed in the middle portion of the pipe member, and the inner wall of the pipe member defines a stopping portion between the water inlet end and the venting opening, and a gap is formed between the water outlet end and the venting opening. a retaining ring; and an elastic valve body, the elastic valve body is formed with a ring, and the ring extends to a tube portion at one end, and the elastic valve body is formed in a flat shape at the end of the tube portion and has two inclined portions. And the elastic valve body is installed in the pipe member, and the elastic valve body is respectively pressed against the stop portion of the pipe member by the ring body and the pipe portion respectively. The retaining ring allows the elastic valve body to make the venting port not communicate with the water outlet end in an unelastically deformed state, and the linear gap of the elastic valve body faces the water outlet end of the pipe member, and the elastic force is expanded by the forward water pressure. The linear gap of the valve body forms water and stops The vacuum suction generated in the water outlet end causes the tube portion of the elastic valve body to communicate with the water outlet end in the elastic deformation state, thereby introducing the external air to achieve the function of vacuum breaking, and the elastic valve body The inclined surface receives the reverse water pressure and closes the linear gap and the vent, and has the effect of both vacuum breaking and water flow back. The water connector according to the first aspect of the invention, wherein the elastic valve body is symmetrically convexly provided with at least one supporting portion at the two inclined portions, and is pressed by the supporting portion On the inner wall of the pipe member, thereby controlling the deformation direction and the deformation amount of the elastic valve body. A water joint having a vacuum breaking and a backstop function according to claim 2, wherein the support portion is in a sheet shape perpendicular to the linear gap, and an outer edge of the support portion is aligned with the circle of the tube portion. Shaped surface. A water joint having a vacuum breaking and a backstop function according to the second aspect of the patent application, wherein the water inlet end of the pipe member is formed with an internal thread, and the water outlet end is formed with an external thread, and the pipe member is internally The thread is connected to the external thread. The water connection head having the vacuum breaking and the backstop function according to the fourth aspect of the patent application, wherein the water inlet end of the pipe member has a screw hole, and the screw hole penetrates to the internal thread, and the screw hole The lock is provided with a bolt and is inserted into the pipe member for pressing the pipe. A water joint having a vacuum breaking and a backstop function according to the first aspect of the patent application, wherein the elastic valve body is made of a rubber or silicone material. A water joint having a vacuum breaking and a backstop function according to claim 1, wherein the pipe member forms a partial contact with the pipe portion of the elastic valve body through the retaining ring, and the pipe member and the elastic member A gas chamber is formed between the valve bodies, through which the outside air is easily introduced into the pipe member.