TWM579240U - Automatic drainage device - Google Patents

Abstract

The present invention relates to an automatic drainage device comprising: a valve body, an O-ring, a partial compression piece, a circular gasket, a top abutting member, and a spring, wherein the valve body The utility model has an axial water flow channel, one end of the valve body is an internal threaded joint end, and the other end is a connecting end having an external thread, wherein the inner side thread portion is provided with an internal thread portion, and the inner thread portion is concavely disposed on each of the upper and lower sides a first fitting groove and a second fitting groove, wherein the first fitting groove and the second fitting groove are respectively embedded with the O-ring and the circular gasket, and the second fitting groove The valve body is formed with a shoulder portion under the second fitting groove, and the shoulder portion is provided with a predetermined number of air holes, and the air holes are penetrated through the outer circumferential surface of the valve body; thereby, the automatic drainage device can be connected It is arranged between a water outlet and a water pipe, and air is introduced to eliminate the back pressure in the water pipe.

Description

Automatic drain

This creation department is related to the drainage device, in particular to an automatic drainage device for quickly eliminating the back pressure in the water pipe so that the residual water remaining in the water pipe can be smoothly discharged.

In general, the farm, greenhouse, flower garden and courtyard are equipped with automatic sprinkler system to provide the water needed for plant growth. The water flow system of the automatic sprinkler system flows out from a tap, flows through the underground water pipe, and finally reaches the nursery. Or spray the sprinkler of the flower buds. After the use, the faucet is screwed to close the water flow. At this time, there is still undischarged water in the water pipe. Since the faucet is closed, a closed end is formed. A suction force is generated in the water pipe, and a vacuum back pressure is formed in the water pipe section, so that the water remaining in the water pipe cannot be discharged; however, in the high latitude region, once the temperature suddenly drops, the water that is not discharged in time in the water pipe may be Therefore, icing causes the blockage of the water pipe, and is more likely to cause the volume of the water to expand due to the expansion of the water, thereby causing the water pipe to rupture, and the need to re-repair and bury the water pipe, causing great trouble to the user.

In order to solve the above problems, the user installs an automatic draining device between the faucet water outlet 1 and the water pipe 2, thereby eliminating back pressure in the water pipe. Referring to the first figure, the main components of the automatic drainage device include an engagement valve 80 and a water outlet valve 90. The water outlet valve 90 is sequentially provided with a circular gasket 91, a top abutting member 92 and a spring. 93, the engaging valve 80 is screwed to the upper side of the water outlet valve 90, and the bottom edge of the middle water outlet hole 81 is formed with a planar pressure dividing portion 82 for pressing against the circular gasket 91, and The effluent of the faucet is prevented from directly rushing against the circular gasket 91, and the partial pressure portion 82 is opened with a predetermined number of perforations 821 to allow the water flow to stably pass through the inlet valve 90.

In terms of processing, the above-mentioned joint valve 80 and water outlet valve 90 are all made of copper material which does not rust, and the joint valve 80 is manufactured by drilling and turning a whole copper rod. Forming the water outlet channel 81 and the bottom edge (the pressure dividing portion 82), and then cutting the holes 821 by machining of the milling machine, the process is quite complicated and time consuming, often causing an increase in manufacturing cost and waste of materials; The structure in which the 80 is screwed to the water discharge valve 90 often causes water flow to leak from the joint ends when the machining accuracy is not high, and there is still room for improvement.

The main purpose of the present invention is to provide an automatic draining device which can reduce the processing steps of components and the occurrence of metalworking waste, and can effectively reduce the production cost.

Another object of the present invention is to provide an automatic draining device which can effectively improve the waterproof effect of the valve body of the draining device.

In order to achieve the above object, the present invention provides an automatic drainage device disposed between a water outlet and a water pipe, comprising: a valve body having a water flow passage extending through the valve body, the valve body having an internal thread at one end The other end is a connecting end having an external thread, the valve body is provided with a ring groove below the joint end thereof, and the inner portion of the valve body is further provided with an internal thread portion, and the upper and lower sides of the internal thread portion are respectively concave a first fitting groove and a second fitting groove are formed. The valve body is formed with a shoulder portion below the second fitting groove, and the shoulder portion is provided with a predetermined number of air holes, and the air holes are penetrated through the hole. a peripheral surface of the valve body, and a ring edge protrudes from the inner side of the water flow hole end of the valve body; a sealing ring is embedded in the annular groove of the connecting end of the valve body; and the partial pressing piece has a circular plate shape. The outer peripheral surface is provided with an external threaded portion and can be screwed into the internal threaded portion of the valve body, and a predetermined number of perforations are formed on the sheet body; a circular spacer having at least one perforation in the center, the circular pad The periphery of the sheet is embedded in the second fitting groove of the valve body; Provided below the circular gasket, having a disk surface, and the disk surface can cover the perforation of the circular gasket; a spring, one end abuts against the top abutting member, and the other end abuts against the ring of the valve body edge.

Preferably, the water flow channel is formed by a water inlet hole of a larger diameter end and a water outlet hole of a smaller diameter end.

Preferably, an annular groove is recessed in the outer peripheral surface of the intermediate portion of the valve body and the connecting end thereof, and the annular groove communicates with the air hole provided in the shoulder of the valve body.

The detailed construction, features, assembly or use of the automatic drainage device provided by this creation will be described in the detailed description of the subsequent embodiments. However, those of ordinary skill in the art should understand that the detailed description and specific embodiments of the present invention are merely used to illustrate the present invention and are not intended to limit the scope of the patent application.

Referring to Figures 2 to 4, the automatic drainage device 10 of the present invention is installed between a faucet water outlet 1 and a water pipe 2. The main component comprises a valve body 20, a sealing ring 30, a partial pressing piece 40, a circular spacer 50, a top abutting member 60 and a spring 70. The structure of each element and the relationship between them are as follows:

The valve body 20 has a circular tubular shape and has a water flow channel 21 extending through the valve body 20. The water flow channel 21 is basically composed of a water inlet hole 211 of a larger diameter end and a water outlet hole 212 of a smaller diameter end. One end of the body 20 is an engaging end 22 having an internal thread for screwing the water outlet 1 of the faucet, and the other end is a connecting end 23 having an external thread for connecting the water supply pipe 2, the connecting end 23 An annular groove 24 is recessed in the middle portion of the valve body 20. An internal thread portion 25 is further disposed at a middle portion of the water inlet hole 211 of the valve body 20, and a first fitting groove 26 and a second fitting groove are respectively recessed between the internal thread portion 25 and the joint end 22 and the water outlet hole 212. 27, and a rim 213 is protruded from the inner side of the water outlet hole 212. In addition, the water inlet hole 211 and the water outlet hole 212 of the water flow channel 21 are joined to each other to form a shoulder portion 28, and the shoulder portion 28 is provided with a predetermined number of rings. The air holes 281 extend through the outer circumferential surface of the valve body 20 to communicate with the annular groove 24, and the center lines of the air holes 281 are parallel to the long axis direction of the valve body 20.

The sealing ring 30 is made of a rubber waterproof material, and has a circular or quadrangular cross section. The annular groove 24 embedded under the connecting end 23 is pressed against the end edge of the water supply tap water outlet 1 . Provides waterproof and leak-proof effects.

The partial pressure piece 40 has a circular plate shape and is integrally formed by injection molding of a plastic material. The outer peripheral surface thereof is provided with an external thread portion 41 and can be screwed to the internal thread portion 25 of the valve body 20 on the sheet body. Four perforations 42 are provided.

The circular spacer 50 is made of a soft material and has a through hole 51 in the center thereof. The circumference of the circular gasket 50 is embedded in the second fitting groove 27 of the valve body 20, and the circle is further tightened by the screwing of the partial pressure piece 40 and the external thread portion 41. The gasket 50 provides sufficient compression strength.

The top end of the abutting member 60 has a disk surface 61 covering the through hole 51 of the circular spacer 50, and the bottom end of the abutting member 60 is provided with three claw hooks 62 and a rod. 63, and the outer end faces of the claw hooks 62 are reliably abutted against the inner circumferential surface of the water outlet hole 212.

The spring 70 is a compression spring, one end of which is fitted to the claw hooks 62 of the abutting member 60, and the rod 63 is used to guide the direction of the spring 70, and the other end is opposite to the inner side of the water outlet hole 212. The rim 213 is provided to provide an upward top force.

As shown in FIG. 5, it is a schematic diagram of the state of the automatic draining device 10 in the preferred embodiment of the present invention. When the water flows into the water flow channel 21 of the valve body 20, the pressure of the water flow first punches the partial pressure. The sheet 40 is then turbulently flowed from the perforations 42 of the partial pressure piece 40 while being evenly offset against the circular spacer 50, which will be expanded and deformed in the direction of water flow due to the characteristics of the soft material. The bottom surface is thereby pressed against the shoulder portion 28 of the valve body 20 to prevent the water flow from flowing out of the air holes 281, and then the water flows out through the through hole 51 of the circular gasket 50 and impacts the disk surface 61 of the abutting member 60, thereby urging The abutting member 60 advances the compression spring 70 while the water flow can flow out through the water pipe 2.

When the water flow stops due to the closing of the faucet, the pressure of the water flow channel 21 in the valve body 20 is reduced, and the elastic force of the spring 70 is returned to urge the top abutting member 60 to press the circular spacer 50 upward. The quick return to the original position, as shown in Fig. 4, the external air will enter through the air holes 281 of the annular groove 24 of the valve body 20, and even if the air quickly enters the water pipe 2, thereby accelerating the elimination of the back pressure in the water pipe, the water pipe 2 The water stored in the reservoir can be automatically discharged more quickly due to the entry of air.

The main feature of the automatic drainage device 10 is that the valve body 20 can be manufactured more easily by the separate design of the pressure dividing piece 40, and the design of the two components of the water valve and the water outlet valve is not required. In addition to the ease of processing, it can save a considerable amount of material costs.

In addition, the artificial partial pressure piece 40 itself is screwed into the valve body 20, and is not easily rotated by the external force to reduce the pressing force on the circular gasket 50, so that there is no such thing as a conventionally used water valve and a water outlet valve. When the components are designed and assembled, it is often caused by looseness between the two, resulting in insufficient press force and water leakage.

Finally, it must be re-arranged that the constituent elements disclosed in the foregoing embodiments are merely illustrative and are not intended to limit the scope of the present invention, and other structural changes that are easily conceivable, or alternatives to other equivalent elements. Changes should also be covered by the scope of the patent application for this case.

1‧‧‧Water tap outlet

2‧‧‧ water pipes

20‧‧‧ valve body

21‧‧‧Water flow tunnel

211‧‧‧ water hole

212‧‧‧Water outlet

22‧‧‧ joint end

23‧‧‧Connected end

24‧‧‧Circle

25‧‧‧Threaded Department

26‧‧‧First mating slot

27‧‧‧Second fitting groove

213‧‧‧ rim

28‧‧‧ shoulder

281‧‧‧ vent

30‧‧‧Seal ring

40‧‧‧Parts

41‧‧‧External thread

42‧‧‧Perforation

50‧‧‧round gasket

51‧‧‧Perforation

60‧‧‧Parts

61‧‧‧

62‧‧‧ claw hook

63‧‧‧ pole

70‧‧‧ Spring

Figure 1 is a schematic view of the engagement between the conventional automatic drain and the faucet outlet. Figure 2 is a perspective view of a three-dimensional detail of the automatic draining device of the preferred embodiment of the present invention. Figure 3 is a perspective assembled view of the automatic drainage device of the preferred embodiment of the present invention. Figure 4 is a cross-sectional view taken along line 4-4 of Figure 2. Fig. 5 is a schematic view showing the state of the flow of water in Fig. 4.

Claims (6)

An automatic drainage device is disposed between a water outlet and a water pipe, and comprises: a valve body having a water flow hole extending through the valve body, the valve body has an internal threaded joint end and the other end has an external thread a connecting groove, the valve body is provided with a ring groove below the joint end, and a middle thread portion is further disposed at a middle portion thereof, and a first fitting groove and a second are respectively recessed on the upper and lower sides of the internal thread portion a fitting groove, the valve body is formed with a shoulder portion under the second fitting groove, and the shoulder portion is provided with a predetermined number of air holes, the air holes are penetrated through the outer circumferential surface of the valve body, and the valve body is A ring edge protrudes from the inner side of the end of the water flow channel; a sealing ring is embedded in the annular groove at the connecting end of the valve body; a partial pressing piece has a circular plate shape, and an outer threaded portion is provided on the outer peripheral surface thereof. Screwed into the inner thread portion of the valve body, the sheet body is provided with a predetermined number of perforations; a circular gasket is provided with at least one perforation in the center, and the circumference of the circular gasket is embedded in the valve body a second fitting groove; a top abutting member disposed under the circular gasket and having a plate And the circular disk may cover the perforations of the pad; and a spring having one end abutting against the abutting member at the other end against the rim against the valve housing. The automatic draining device of claim 1, wherein the water flow channel is formed by a water inlet hole of a larger diameter end and a water outlet hole of a smaller diameter end. The automatic draining device of claim 1, wherein an annular groove is recessed in an outer peripheral surface of the intermediate portion of the valve body and the connecting end thereof, and the annular groove communicates with the air hole provided at the shoulder of the valve body. The automatic draining device of claim 1, wherein the partial pressure piece is integrally formed by injection molding of a plastic material. The automatic drain device of claim 1, wherein the seal ring has a circular cross section. The automatic drain device of claim 1, wherein the seal ring has a quadrangular cross section.