TWM528390U - Full drainage type vacuum breaker - Google Patents

Description

Full row vacuum breaker

The full-row type vacuum breaker of the present invention is mainly applied to a one-piece safety valve body which can save manufacturing cost, and a technology for preventing a fluid from remaining large in the internal icing and breaking the safety valve body.

According to the invention patent case of the US certificate number: 5,228,471 "AUTOMATIC DRAINING BACK FLOW PREVENTER", according to the patent application content, the tubular casing device mainly manufactures the first tubular part and the second respectively. After the tubular portion and the third tubular portion, the inner and outer threads which are opposite to the first and second tubular portions are respectively screwed into one body by the first and second tubular portions.

In the above-mentioned "automatic drainage backflow prevention device", the first tubular portion, the second tubular portion and the third tubular portion of the tubular casing device are separately manufactured in a three-piece structure, in order to prevent leakage, Therefore, it is necessary to add a leak-proof gasket above the inner and outer threads of the first tubular portion and the third tubular portion, which in vain increases the manufacturing cost, and has existing problems and defects that have yet to be solved.

In addition, the US certificate number: US7,458,388 B2 "FREEZE SAFE VALVE (anti-freeze safety valve)" invention patent case, according to the patent application content, the two ends of the body are provided with internal and external thread parts, which can be locked Between the two pipes, the body is provided with an elastic element, a water stop pad, a water inlet plate and a gasket, and a brake element is arranged between the elastic element and the water stop pad. The water flows in from the water inlet hole around the water inlet tray and the water inlet hole in the middle of the water stop pad. When the water inlet is stopped, the water stop pad is biased by the elastic element and the brake element to open the vent hole communicating with the inside of the body. Let the outside air enter the pipeline and drain the residual water smoothly.

In the above-mentioned "anti-freeze safety valve" US invention patent case, since only one automatic drainage device is provided below, there is still water remaining in the upper pipeline, and the water remaining inside the pipeline will cause freezing in winter. In the case of a squib, there are problems and deficiencies that have yet to be resolved.

The creator is currently engaged in the manufacture and design of related products, and has accumulated many years of practical experience and experience. He actively invests in the existing problems and shortcomings of the above-mentioned "automatic drainage anti-backflow device" and "anti-freeze safety valve" US invention patent case. The spirit of innovation and improvement, the complete row of vacuum breakers completed.

The technical method for solving the problem is that the safety valve body is provided with an accommodating space and an elastic gasket. The elastic gasket is slightly smaller than the accommodating space and has a gap. The accommodating space is provided with a plurality of aliquots at the periphery thereof. The through hole has a shaft hole and an upwardly bent sealing portion at the center and the periphery of the elastic gasket. When the water is discharged, the bottom surface of the elastic gasket and the sealing portion are expanded and sealed by the air pressure in the safety valve body. The plurality of through holes of the safety valve body prevent the fluid from leaking out and prevent the outside air from entering, so that the fluid and the air inside the safety valve body can smoothly flow out, and when the water is not discharged, the sealing portion is inwardly closed, so that the outside air enters and breaks. The vacuum state allows the internal fluid and air to escape from the gap and the plurality of through holes.

The efficacy of the new control prior art is based on the fact that fluid residue can be avoided When the internal icing is large, the volume becomes larger and the safety valve body is broken. At the same time, since the safety valve system is firstly formed into a single-piece structure after being cast into a rough embryo and then processed one by one, the manufacturing cost can be saved, and the utility model has the effect of Enhance, one for its purpose.

The second principle of the new control prior art is that the safety valve body is provided with an automatic drainage device underneath, and an accommodation space and an elastic gasket are arranged above the safety valve body, and the upper and lower pipelines are not discharged. The internal fluid and air can be discharged completely smoothly, and there is no residual fluid inside the upper and lower pipelines. In winter, there is no situation in which the drain pipe is squished due to fluid freezing, which is an improvement in efficiency. The purpose of the second achievement.

10‧‧‧Safe valve body

101‧‧‧Upper parts

102‧‧‧ Lower parts

103‧‧‧Chinese parts

11‧‧‧Upper internal thread

12‧‧‧Under internal thread

13‧‧‧Internal

14‧‧‧Internal

15‧‧‧Axis hole

16‧‧‧Conical surface

17‧‧‧ accommodating space

171‧‧‧Circular wall

18‧‧‧ inside the retaining edge

19‧‧‧through hole

20‧‧‧elastic gasket

21‧‧‧Axis hole

22‧‧‧ Sealing Department

23‧‧‧ Thicker

24‧‧‧ Thinner

30‧‧‧Water shims

31‧‧‧Perforation

40‧‧‧ Sealed elastic gasket

41‧‧‧Axis hole

50‧‧‧Water stand

51‧‧‧Upper external thread

52‧‧‧Under external thread

53‧‧‧ positioning edge

54‧‧‧ Groove

55‧‧‧through hole

56‧‧‧Axis hole

57‧‧‧ cone hole

58‧‧‧

59‧‧‧Water outlet

60‧‧ ‧ spring seat

61‧‧‧ Sockets

S‧‧‧Rebound element

A‧‧‧ gap

B‧‧‧ gap

C‧‧‧ gap

The first picture: a schematic diagram of the three-dimensional combination of the creation.

The second picture is a three-dimensional decomposition of the creation and a schematic diagram of the E and F sections.

The third picture: a schematic diagram of the cross-section of the creation.

The fourth picture is a schematic view of the D-D section of the third figure.

The fifth picture is a schematic diagram of the sectional combination when the vacuum is broken.

Figure 6: Schematic diagram of the P-P section in the fifth diagram.

The seventh picture is a schematic diagram of the cross-section combination of the original water.

Figure 8 is a schematic view of the N-N section of the seventh figure.

In order to make it easier for those who are familiar with the art to understand the structure of the creation and the functional benefits that can be achieved, a specific embodiment will be listed, and the detailed description will be as follows: A full-row type vacuum breaker, please refer to the first and second figures: the three-dimensional composite section and the three-dimensional decomposition of the creation and the schematic diagram of the E and F sections. And the third and fourth figures are shown in the cross-section combination of the creation and the D-D cross-section of the third figure. The utility model mainly comprises: a safety valve body 10, an elastic gasket 20, a water outlet gasket 30, a sealing elastic gasket 40, a water outlet seat 50, a resilient element S and a spring seat 60; wherein: the safety valve body The 10 series firstly forms a one-piece structure integrally formed by casting into a rough blank, and thus the manufacturing cost can be saved. The safety valve body 10 includes an upper part 101, a lower part 102 and a middle part 103, and the safety valve body 10 is provided with an upper internal thread 11 and a lower internal thread 12 at the upper and lower inner portions of the upper part 101 and the lower part 102. The safety valve body 10 is further provided with two inner edge edges 13, 14 at the lower inner portion of the lower part 102. The inner diameter of the lower inner edge 13 is larger than the inner diameter of the upper inner edge 14 , the upper inner edge 14 can accommodate a water outlet gasket 30 , and the lower inner edge 13 can accommodate a sealing elastic gasket 40. The center of the safety valve body 10 is provided with a shaft hole 15 . The shaft hole 15 is provided with a conical surface 16 . The safety valve body 10 is provided with an accommodating space 17 at the inner part of the middle part 103 . The upper portion of the 17 is provided with an inwardly projecting inner rib 18, and the accommodating space 17 is provided for accommodating an elastic The sheet 20 is provided with a plurality of halved through holes 19 at the periphery of the accommodating space 17 for discharging air and fluid outward when the vacuum is broken; the elastic spacer 20 is made of nitrile rubber (NBR) or propylene. The synthetic rubber material obtained by copolymerizing two monomers of acrylic acid (Acrylonitrile) and butadiene (Butadiene), the size of the elastic gasket 20 is slightly smaller than the accommodation space 17 of the safety valve body 10 The inner wall surface 171 has an inner diameter to retain the gaps A, B, and C. The center of the elastic spacer 20 is provided with a shaft hole 21, and the outer periphery of the elastic spacer 20 is provided with a ring-shaped upwardly bent sealing portion 22, the bottom portion of the sealing portion 22. A thick portion 23 is disposed. The top portion of the sealing portion 22 is provided with a thin portion 24, so that the sealing portion 22 has an elastic force for outward expansion and inward convergence. When the water is not discharged, the sealing portion 22 is inwardly converged. The elastic force allows the fluid to be discharged from the elastic gap 20 and the gaps A, B, and C of the upper and lower walls of the accommodating space 17 from the peripheral plurality of through holes 19, allowing outside air to enter, breaking the vacuum state, and The internal fluid and air are discharged from the gap and the plurality of through holes 19 to prevent the fluid from remaining inside, preventing the ice from breaking through the drain pipe, and the elastic gasket 20 is sealed by the air pressure in the safety valve body 10 when the water is discharged. The portion 22 expands downwardly and outwardly and seals a plurality of through holes 19 around the periphery of the safety valve body 10 to prevent the fluid from passing through the gaps A, B, C and the periphery of the safety valve body 10 from the upper and lower walls. The hole 19 leaks out, and at the same time prevents outside air from entering, allowing the safety valve body 1 0 The internal fluid and air can flow smoothly; the water discharge gasket 30 is just sized to accommodate the inner edge 14 disposed above the safety valve body 10, and the outlet gasket 30 is provided with a plurality of aliquots at the circumference The perforations 31 allow fluid to flow from the plurality of perforations 31 evenly from the shaft holes 15 of the safety valve body 10; the sealing elastic gaskets 40 are made of nitrile rubber (NBR), namely, acrylonitrile (Acrylonitrile) and butadiene (Butadiene). The synthetic rubber material is obtained by copolymerizing two kinds of monomers, and the sealing elastic gasket 40 is just sized to accommodate the inner edge 13 disposed under the safety valve body 10. The center of the sealing elastic gasket 40 is provided with a Axle hole 41, not out In the case of water, the sealing elastic gasket 40 closes the plurality of perforations 31 of the water outlet gasket 30 by the upward abutment of the spring seat 60. When the water is discharged, since the pressure of the fluid is greater than the elastic force of the elastic component S, the fluid will The spring seat 60 is pressed downward from the plurality of through holes 31 of the water discharge gasket 30 and the shaft hole 41 of the sealing elastic gasket 40; the upper and lower outer portions of the water outlet seat 50 are provided with an upper external thread 51 and a lower external thread 52. The lower outer portion of the external thread 51 is provided with a positioning edge 53 which can be locked to the lower internal thread 12 of the safety valve body 10 until the positioning step 53 is positioned with the safety valve body 10, the outlet seat A recess 54 is defined in the upper portion of the recess 54. The bottom of the recess 54 is provided with a plurality of through holes 55 arranged in an equal manner, so that air and fluid inside the water outlet 50 can be discharged from the plurality of through holes 55. A shaft hole 56 is defined in the center of the water outlet 50. The upper inner wall of the shaft hole 56 is provided with a large and small tapered hole 57. The lower inner wall of the shaft hole 56 is provided with an inwardly protruding step edge 58. Thereby, a water outlet hole 59 is formed in the lower center of the shaft hole 56, and the shaft hole 56 is inside A spring element 60 can be disposed, and a spring seat 60 is disposed. The lower end of the elastic element S is abutted against the step edge 58. The upper end of the elastic element S is abutted against the lower side of the spring seat 60. The outer diameter of the spring seat 60 is slightly smaller than the inner diameter of the shaft hole 56 of the water outlet seat 50. The spring seat 60 is provided with a set of joints 61. The outer diameter of the sleeve portion 61 is equivalent to the inner diameter of the elastic element S. The upper end of the elastic element S can be sleeved in the socket portion 61, and the spring force of the elastic element S can be pushed upward against the spring seat 60. When no water is discharged, the air and fluid inside the water outlet 50 can be removed from the shaft hole 56, The taper hole 57 and the plurality of through holes 55 are discharged outward to prevent the fluid from remaining inside, preventing the ice from breaking through the drain pipe, and sealing when the water is discharged The elastic gasket 40 seals the tapered hole 57 of the water outlet 50 so that fluid can flow out from the outside of the spring seat 60 and the shaft hole 56 of the water outlet 50, and finally flows out of the water outlet 59.

The combination of the above-mentioned various component structures provides a full-row type vacuum breaker, which is used in practical applications: please refer to the fifth and sixth figures: the break of the vacuum of the creation The face combination and the PP profile of the fifth figure. When the water is not normally discharged, the elastic force of the elastic element S is pressed upward against the spring seat 60, so that the air and fluid inside the water outlet 50 can be discharged from the shaft hole 56, the tapered hole 57 and the plurality of through holes 55, and the elasticity is utilized. The sealing portion 22 of the gasket 20 is inwardly contracted by the elastic force, so that the fluid can be outwardly surrounded by the plurality of through holes 19 from the elastic spacer 20 and the space A, B, and C of the upper and lower walls of the accommodating space 17. Discharge, let the outside air enter, break the vacuum state, and let the internal fluid and air discharge from the gap and a plurality of through holes 19, to prevent the fluid from remaining inside the ice, and prevent the ice from breaking through the drain pipe.

Please refer to the seventh and eighth figures: the cross-section combination of the original water and the N-N cross-section of the seventh figure. When the water is discharged, the elastic gasket 20 and the sealing portion 22 are expanded downward and outward by the air pressure in the safety valve body 10, and the plurality of through holes 19 at the periphery of the safety valve body 10 are sealed to prevent fluid from the safety valve body 10. The upper, lower and inner wall gaps A, B, C and a plurality of peripheral through holes 19 leak out, and at the same time, the outside air can be prevented from entering, so that the fluid and air inside the safety valve body 10 can smoothly flow downward, and borrow The tapered hole 57 of the water outlet 50 is sealed by the sealing elastic gasket 40 to prevent fluid from leaking from the tapered hole 57 of the water outlet 50 and the plurality of through holes 55, so that the fluid can be from the outside of the spring seat 60 and the shaft of the water outlet 50. The gap of the hole 56 flows out and finally flows out of the water outlet hole 59.

Based on the above, the creation department provides a full-row vacuum breaker. After the actual production and repeated operation tests of the creator, it is confirmed that the functional benefits expected by the creation can be achieved. The first thing that has never been seen is that it has the value of industrial use. It is true that it has met the essentials of the practicability and progress of the new patent, and has filed a new patent application with the bureau in accordance with the provisions of the Patent Law.

10‧‧‧Safe valve body

101‧‧‧Upper parts

102‧‧‧ Lower parts

103‧‧‧Chinese parts

11‧‧‧Upper internal thread

12‧‧‧Under internal thread

13‧‧‧Internal

14‧‧‧Internal

15‧‧‧Axis hole

16‧‧‧Conical surface

17‧‧‧ accommodating space

171‧‧‧Circular inner wall

18‧‧‧ inside the retaining edge

19‧‧‧through hole

20‧‧‧elastic gasket

21‧‧‧Axis hole

22‧‧‧ Sealing Department

23‧‧‧ Thicker

24‧‧‧ Thinner

30‧‧‧Water shims

31‧‧‧Perforation

40‧‧‧ Sealed elastic gasket

41‧‧‧Axis hole

50‧‧‧Water stand

51‧‧‧Upper external thread

52‧‧‧Under external thread

53‧‧‧ positioning edge

54‧‧‧ Groove

55‧‧‧through hole

56‧‧‧Axis hole

57‧‧‧ cone hole

58‧‧‧

59‧‧‧Water outlet

60‧‧ ‧ spring seat

61‧‧‧ Sockets

S‧‧‧Rebound element

Claims (4)

A full-row type vacuum breaker mainly comprises: a safety valve system integrally formed by an upper part, a lower part and a middle part, wherein the safety valve body is provided with a lower internal thread and two inner edge edges at a lower inner portion of the lower part, the lower part The inner diameter of the inner edge is larger than the inner diameter of the inner inner edge of the upper part, the lower internal thread can be locked with a water outlet, the upper inner edge can accommodate a water outlet gasket, and the inner inner edge can accommodate one. Sealing the elastic gasket, the elastic seat is provided with a resilient element and a spring seat, and the elastic force of the elastic component is used to press up against the spring seat, so that the sealing elastic gasket seals the water outlet gasket, and the characteristic is: the safety valve The center of the body is provided with a shaft hole, and a conical surface is disposed above the shaft hole. The safety valve body is provided with an accommodating space at the inner portion of the middle portion, and an inner rib is protruded upwardly from the accommodating space. The accommodating space is configured to receive a resilient spacer, and the outer periphery of the accommodating space is provided with a plurality of halved through holes for discharging air and fluid outward when the vacuum is broken; the size of the elastic shims is slightly Less than the size of the safety valve body The space has a circumferential wall surface and a space is reserved. The center of the elastic gasket is provided with a shaft hole. The outer periphery of the elastic gasket is provided with a ring-shaped upwardly bent sealing portion. The bottom portion of the sealing portion is provided with a thick portion, and the top portion of the sealing portion is provided. A thinner portion is provided to allow the sealing portion to have an elastic force of outward expansion and inward convergence. When the water is not discharged, the sealing portion is converged inward, allowing outside air to enter, breaking the vacuum state, and allowing the fluid to pass from the elastic gasket. The gaps between the upper and lower sides of the accommodating space are exhausted by a plurality of through holes at the periphery. When the water is discharged, the elastic gasket and the sealing portion are expanded downward and outward by the air pressure in the safety valve body to seal the safety valve. A plurality of through holes at the periphery of the body prevent fluid from leaking out and prevent outside air from entering, so that the fluid and air inside the safety valve body can smoothly flow out. The full-row type vacuum breaker according to claim 1, wherein the safety valve system is firstly formed into a one-piece structure integrally formed by casting into a rough embryo and then piece by piece. The full-row type vacuum breaker according to claim 1, wherein the elastic gasket is made of a nitrile rubber (NBR) material. A full-row type vacuum breaker according to claim 1, wherein the safety valve body is provided with an upper internal thread at an upper inner portion of the upper member.