An angle valve

Abstract

This utility model discloses an angle valve, including a housing, a rotating part, a valve stem, and a first spring. The upper part of the housing has a mounting port, and the rotating part is threadedly connected to the mounting port. A water outlet pipe is formed on the side of the housing. A water inlet pipe is formed at the lower part of the housing. The valve stem is slidably connected to the water inlet pipe. A water-stop ring located outside the water inlet pipe is connected to the lower part of the valve stem. A water passage extending upwards to the upper end of the valve stem is formed inside the valve stem above the water-stop ring. A water outlet communicating with the water passage is formed on the outer wall of the valve stem above the water-stop ring. The upper end of the valve stem abuts against the lower end of the rotating part. The first spring is sleeved outside the valve stem and located inside the housing to push the valve stem against the rotating part. Compared with the prior art, this utility model simplifies the structure of the angle valve and is less susceptible to wear from scale and sediment.

Description

Technical Field

[0001] This utility model relates to the field of bathroom technology, specifically to an angle valve. Background Technology

[0002] Angle valves are common valves in daily life and are widely used; they are used to connect to water pipes inside walls. Because water pipes often contain scale or small sand particles, these impurities can easily enter the angle valve, which is controlled by rotating ceramic discs. This can cause wear or jamming of the discs, leading to poor sealing. Furthermore, angle valves controlled by rotating ceramic discs have many components, making them relatively expensive.

[0003] In view of this, the inventor conducted in-depth research on the aforementioned deficiencies in the prior art, which led to the creation of this case. Utility Model Content

[0004] The main purpose of this utility model is to provide an angle valve that has the characteristics of simple structure and is not easily worn.

[0005] To achieve the above objectives, the solution of this utility model is:

[0006] An angle valve includes a housing, a rotating part, a valve stem, and a first spring. The upper part of the housing has a mounting port, and the rotating part is threadedly connected to the mounting port. A water outlet pipe is formed on the side of the housing. A water inlet pipe is formed on the lower part of the housing. The valve stem is slidably connected to the water inlet pipe. A water-stop ring located outside the water inlet pipe is connected to the lower part of the valve stem. A water passage extending upward to the upper end of the valve stem is formed inside the valve stem above the water-stop ring. A water outlet communicating with the water passage is formed on the outer wall of the valve stem above the water-stop ring. The upper end of the valve stem abuts against the lower end of the rotating part. The first spring is sleeved outside the valve stem and located inside the housing to push the valve stem against the rotating part.

[0007] Furthermore, an internal thread is formed inside the mounting opening; an external thread is formed on the outer wall of the rotating part, and the external thread of the rotating part is connected to the internal thread of the mounting opening.

[0008] Furthermore, an abutment ring is formed at the upper end of the valve stem, and the upper end of the first spring abuts against the lower surface of the abutment ring; a limit ring is formed on the inner wall of the water inlet pipe, and the lower end of the first spring abuts against the limit ring.

[0009] Furthermore, an explosion-proof valve is provided at the upper end of the valve stem, and an explosion-proof component is provided inside the explosion-proof valve. The lower end of the rotating part abuts against the outer shell of the explosion-proof valve.

[0010] Furthermore, a mounting cylinder is formed at the lower part of the rotating part, the lower opening of the mounting cylinder is connected to the water passage, and the side of the mounting cylinder has a side opening, which is connected to the water outlet pipe.

[0011] Furthermore, a cylindrical filter screen is installed on the inner wall of the mounting cylinder.

[0012] Furthermore, a first sealing ring for preventing mud and sand is provided between the valve stem above the water outlet and the inner wall of the water inlet pipe.

[0013] Furthermore, a sealing ring is provided on the side wall of the rotating part below the external thread. The rotating cross section of the sealing ring is in the shape of an inverted U. The sealing ring has an inner ring and an outer ring, and the cavity opening between the inner ring and the outer ring is oriented towards the water inlet pipe.

[0014] Furthermore, a hand-tightening part is provided at the top of the rotating part.

[0015] Furthermore, a water outlet pipe is provided on the side of the housing; or, at least two water outlet pipes are provided on the side of the housing.

[0016] With the above structure, the angle valve of this utility model has at least the following characteristics:

[0017] Beneficial effects:

[0018] 1. Since the rotating part is connected to the housing by a thread, the rotating part will move in the axial direction due to the rotation of the rotating part relative to the housing; under the action of the first spring, the valve stem always abuts against the rotating part, so the valve stem will also move axially with the rotation of the rotating part, thus realizing the axial displacement of the water-stop ring to achieve water sealing or water flow.

[0019] Second, the inlet pipe opening is opened or closed by axial movement of the water-stop ring, which is less prone to wear; even if scale gets stuck between the water-stop ring and the inlet pipe opening, the rotating part can be rotated in the direction of increasing water flow to increase the distance between the water-stop ring and the inlet pipe opening, so that the scale is washed away with the water flow.

[0020] Third, a cylindrical filter screen is installed on the rotating part to collect scale and fine sand. After a period of time, rotating the rotating part will detach it from the housing, making it easy to clean the scale on the cylindrical filter screen. The water-stop ring has already sealed the inlet pipe and remains sealed under water pressure and the action of the first spring, so there will be no leakage after the rotating part is removed.

[0021] Fourth, the first sealing ring between the valve stem and the inner wall of the inlet rod serves to prevent sand and scale from entering the gap between the valve stem and the inlet pipe and affecting the relative sliding of the valve stem and the inlet pipe.

[0022] Compared with the prior art, this utility model simplifies the structure of the angle valve and is less susceptible to wear from scale and silt. Attached Figure Description

[0023] Figure 1 This is a front view schematic diagram of an angle valve that relates to this utility model.

[0024] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0025] Figure 3 This is a three-dimensional exploded view of the rotating part and the shell.

[0026] Figure 4 This is a cross-sectional exploded view of the rotating part and the housing.

[0027] Figure 5 This is a cross-sectional exploded view of the components of this utility model.

[0028] Figure 6 This is a three-dimensional exploded view of the components of this utility model.

[0029] Figure 7 This is a cross-sectional view of an angle valve with two outlet pipes.

[0030] Figure 8 This is a three-dimensional structural diagram of an angle valve with two outlet pipes.

[0031] Figure 9 This is a cross-sectional structural diagram of the present invention with an explosion-proof valve.

[0032] Figure 10 This is a three-dimensional sectional view of the present invention, which has an explosion-proof valve.

[0033] Figure 11 This is a three-dimensional exploded view of the components of this utility model with an explosion-proof valve.

[0034] In the picture:

[0035] Housing 1; Mounting port 11; Internal thread 111; Water outlet pipe 12; Water inlet pipe 13; Limiting ring 131; Rotating part 2; External thread 21; Mounting cylinder 22; Side opening 221; Cylindrical filter screen 222; Sealing ring 23; Hand-tightening part 24; Valve stem 3; Water passage 31; Water outlet 32; Water stop ring 33; Abutment ring 34; First sealing ring 35; First spring 4; Explosion-proof valve 5; Movable core 51; Second spring 52. Detailed Implementation

[0036] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0037] like Figures 1 to 8 As shown, this is an angle valve according to the present invention, including a housing 1, a rotating part 2, a valve stem 3 and a first spring 4; the upper part of the housing 1 has a mounting port 11, and the rotating part 2 is threadedly connected to the mounting port 11; furthermore, an internal thread 111 is formed in the mounting port 11; an external thread 21 is formed on the outer wall of the rotating part 2, and the external thread 21 of the rotating part 2 is connected to the internal thread 111 of the mounting port 11.

[0038] A water outlet pipe 12 is formed on the side of the housing 1; a water inlet pipe 13 is formed at the bottom of the housing 1; the valve stem 3 is slidably connected to the water inlet pipe 13; a water stop ring 33 located outside the water inlet pipe 13 is connected to the lower part of the valve stem 3; a water passage 31 extending upward to the upper end of the valve stem 3 is formed inside the valve stem 3 above the water stop ring 33; a water outlet 32 ​​communicating with the water passage 31 is formed on the outer wall of the valve stem 3 above the water stop ring 33; the upper end of the valve stem 3 abuts against the lower end of the rotating part 2; the first spring 4 is sleeved on the valve stem 3 and located inside the housing 1 to push the valve stem 3 against the rotating part 2.

[0039] Thus, in the angle valve of this utility model, since the rotating part 2 is connected to the housing 1 by a thread, the rotating part 2 will move in the axial direction due to the rotation of the rotating part 2 relative to the housing 1; under the action of the first spring 4, the valve stem 3 always abuts against the rotating part 2, so the valve stem 3 will also move axially with the rotation of the rotating part 2, thereby realizing the axial displacement of the water-stop ring 33 to achieve water sealing or water flow.

[0040] The inlet of the water inlet pipe 13 is opened or closed by axial movement of the water-stop ring 33, which is not prone to wear. Even if scale gets stuck between the water-stop ring 33 and the inlet of the water inlet pipe 13, the rotating part 2 can be rotated in the direction of increasing water flow to increase the distance between the water-stop ring 33 and the inlet of the water inlet pipe 13, so that the scale can be washed away with the water flow.

[0041] Preferably, an abutment ring 34 is formed at the upper end of the valve stem 3, and the upper end of the first spring 4 abuts against the lower surface of the abutment ring 34; a limiting ring 131 is formed on the inner wall of the water inlet pipe 13, and the lower end of the first spring 4 abuts against the limiting ring 131. The two ends of the first spring 4 are limited by the abutment ring 34 and the limiting ring 131 respectively, which can more stably apply the restoring force to the valve stem 3 in the sealing direction.

[0042] Preferably, the lower part of the rotating part 2 is formed with a mounting cylinder 22, the lower opening of the mounting cylinder 22 is connected to the water passage 31, and the side of the mounting cylinder 22 has a side opening 221, which is connected to the water outlet pipe 12, allowing water to flow through the side opening 221 to the water outlet pipe 12. Furthermore, a cylindrical filter screen 222 is installed on the inner wall of the mounting cylinder 22.

[0043] A cylindrical filter screen 222 is installed on the rotating part 2 to collect scale and fine sand. After a period of time, rotating the rotating part 2 will detach it from the housing 1, making it easy to clean the scale on the cylindrical filter screen 222. The water-stop ring 33 has already sealed the opening of the water inlet pipe 13 and remains sealed under water pressure and the action of the first spring 4, so there will be no leakage after the rotating part 2 is removed.

[0044] Preferably, a first sealing ring 35 for preventing mud and sand is provided between the valve stem 3 above the water outlet 32 ​​and the inner wall of the water inlet pipe 13. The first sealing ring 35 between the valve stem 3 and the inner wall of the water inlet pipe prevents mud, sand, gravel and scale from entering the gap between the valve stem 3 and the water inlet pipe 13 and affecting the relative sliding of the valve stem 3 and the water inlet pipe 13.

[0045] Preferably, a sealing ring 23 is provided on the side wall of the rotating part 2 below the external thread 21. The rotating cross section of the sealing ring 23 is in the shape of an inverted U. The sealing ring 23 has an inner ring and an outer ring, and the cavity opening between the inner ring and the outer ring is oriented towards the water inlet pipe 13. In this way, when there is water pressure, the cavity between the inner ring and the outer ring of the sealing ring 23 is expanded by the water pressure, so that the inner ring and the outer ring respectively abut against the rotating part 2 and the inner wall of the housing 1, resulting in a better sealing effect.

[0046] Preferably, the rotating part 2 is provided with a hand-tightening part 24 at its top. This makes it convenient for the user to turn the rotating part 2. Preferably, a water outlet pipe 12 is provided on the side of the housing 1; or, at least two water outlet pipes 12 are provided on the side of the housing 1. Different water-using devices can be connected as needed through one or more water outlet pipes 12.

[0047] Preferably, as another embodiment, such as Figures 9 to 11As shown, an explosion-proof valve 5 is provided at the upper end of the valve stem 3, and an explosion-proof component is provided inside the explosion-proof valve 5. The lower end of the rotating part 2 abuts against the outer shell of the explosion-proof valve 5. The explosion-proof component includes a movable core 51 and a second spring 52. The movable core 51 can move back and forth in the water passage cavity of the explosion-proof valve 5 with changes in water pressure to block or open the water passage of the explosion-proof valve 5. In this way, when the angle valve bursts, due to the sudden increase in water flow, the movable core overcomes the elastic force of the second spring under the drive of the water flow and blocks the water passage. This blocks the water flow and prevents the loss from expanding. The working principle of the explosion-proof valve has been disclosed by Chinese patent CN206221843U and will not be described in detail here.

[0048] Compared with the prior art, this utility model simplifies the structure of the angle valve and is less susceptible to wear from scale and silt.

[0049] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. An angle valve, characterized in that, The device includes a housing, a rotating part, a valve stem, and a first spring. The upper part of the housing has a mounting port, and the rotating part is threadedly connected to the mounting port. A water outlet pipe is formed on the side of the housing. A water inlet pipe is formed on the lower part of the housing. The valve stem is slidably connected to the water inlet pipe. A water-stop ring located outside the water inlet pipe is connected to the lower part of the valve stem. A water passage extending upwards to the upper end of the valve stem is formed inside the valve stem above the water-stop ring. A water outlet communicating with the water passage is formed on the outer wall of the valve stem above the water-stop ring. The upper end of the valve stem abuts against the lower end of the rotating part. The first spring is sleeved outside the valve stem and located inside the housing to push the valve stem against the rotating part.

2. The angle valve as described in claim 1, characterized in that, An internal thread is formed inside the mounting opening; an external thread is formed on the outer wall of the rotating part, and the external thread of the rotating part is connected to the internal thread of the mounting opening.

3. The angle valve as described in claim 1, characterized in that, An abutment ring is formed at the upper end of the valve stem, and the upper end of the first spring abuts against the lower surface of the abutment ring; a limit ring is formed on the inner wall of the water inlet pipe, and the lower end of the first spring abuts against the limit ring.

4. The angle valve as described in claim 1, characterized in that, An explosion-proof valve is provided at the upper end of the valve stem, and an explosion-proof component is provided inside the explosion-proof valve. The lower end of the rotating part abuts against the outer shell of the explosion-proof valve.

5. The angle valve as described in claim 1, characterized in that, The lower part of the rotating part is formed with an installation cylinder, the lower opening of the installation cylinder is connected to the water passage, and the side of the installation cylinder has a side opening, which is connected to the water outlet pipe.

6. The angle valve as described in claim 5, characterized in that, A cylindrical filter screen is installed on the inner wall of the mounting cylinder.

7. An angle valve as described in claim 1, characterized in that, A first sealing ring for preventing mud and sand is provided between the valve stem above the water outlet and the inner wall of the water inlet pipe.

8. An angle valve as described in claim 2, characterized in that, A sealing ring is provided on the side wall of the rotating part below the external thread. The rotating cross section of the sealing ring is "inverted U-shape". The sealing ring has an inner ring and an outer ring. The cavity opening between the inner ring and the outer ring is oriented towards the water inlet pipe.

9. An angle valve as described in claim 1, characterized in that, The top of the rotating part is provided with a hand-tightening part.

10. An angle valve as described in claim 1, characterized in that, The side of the housing is provided with a water outlet pipe; or, the side of the housing is provided with at least two water outlet pipes.

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