Double-layer dynamic sealing angle valve

Abstract

The utility model discloses a double-layer dynamic sealing angle valve which comprises a valve body, a dynamic sealing assembly is arranged on the valve body, the side wall of the valve body is communicated with a water inlet pipe, a water outlet is formed in the bottom of the valve body, and a static sealing ring is fixedly connected to the inner wall of the valve body. The movable sealing assembly comprises a screw penetrating through the top of the valve body in a threaded mode, the end, located in the valve body, of the screw is fixedly connected with a valve element, the outer wall of the valve element is fixedly sleeved with a movable sealing ring, a rectangular rod is slidably inserted into the end, located above the valve body, of the screw, and a rectangular groove matched with the rectangular rod is formed in the top of the screw. And the upper end of the rectangular rod is fixedly connected with a knob. According to the angle valve, the movable sealing ring extrudes the static sealing ring, a closed space can be formed among the valve element, the movable sealing ring and the static sealing ring, and therefore media in the angle valve cannot leak, the phenomenon that water leakage is prone to occurring after the angle valve is used for a long time is effectively avoided, and the sealing effect of the angle valve is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of angle valves, in particular to a double-layer dynamic sealing angle valve. Background Art

[0002] Angle valve is an angle stop valve. Angle valve is similar to spherical valve, and its structure and characteristics are modified from ball valve. The difference from spherical valve is that the outlet and inlet of angle valve form a 90-degree right angle. Angle valve is an angle valve, which uses the up and down movement of opening and closing parts to realize the opening and closing of angle valve. When the hand wheel of angle valve drives the opening and closing parts to move upward through valve stem, the lower end of opening and closing parts will no longer block and seal the water inlet hole, and the water in the water inlet pipe connected to the water inlet joint of angle valve will enter into valve body through water inlet hole, and then flow out through water outlet joint to the water outlet pipe connected to the water outlet joint for use.

[0003] Most traditional angle valves have poor sealing effects and are prone to water leakage after long-term use. Therefore, we propose a high-sealing angle valve to solve the above problem. Utility Model Content

[0004] The utility model aims to solve the problems in the background technology and proposes a double-layer dynamic sealing angle valve.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A double-layer dynamic sealing angle valve comprises a valve body, a dynamic sealing assembly is arranged on the valve body, a side wall of the valve body is connected to a water inlet pipe, a water outlet is arranged at the bottom of the valve body, and a static sealing ring is fixedly connected to the inner wall of the valve body;

[0007] The dynamic sealing assembly includes a screw threaded through the top of the valve body, one end of the screw located in the valve body is fixedly connected to the valve core, the outer wall of the valve core is fixedly sleeved with a dynamic sealing ring, the end of the screw located above the valve body is slidably inserted with a rectangular rod, the top of the screw is provided with a rectangular groove matching the rectangular rod, the upper end of the rectangular rod is fixedly connected to a knob, a support and limit assembly is provided between the knob and the valve body, and the knob is movably sleeved on the outer wall of the valve body.

[0008] Preferably, the support and limit assembly comprises a fixing ring fixedly sleeved on the outer wall of the valve body, the fixing ring is movably embedded in the inner wall of the knob, and the inner wall of the knob is provided with an annular groove matching the fixing ring.

[0009] Preferably, the static sealing ring is located below the water inlet pipe.

[0010] Preferably, the dynamic sealing ring is air-tightly attached to the inner wall of the valve body.

[0011] Preferably, a handle is fixedly connected to the top of the knob.

[0012] Preferably, the surface of the lower end of the valve body and the surface of the water inlet pipe are both provided with thread grooves.

[0013] Preferably, a plurality of balls are movably embedded in the top and bottom of the fixing ring.

[0014] Compared with the existing technology, the advantages of this double-layer dynamic sealing angle valve are:

[0015] By turning the knob with the handle, the screw can be driven to rotate by utilizing the clamping connection between the rectangular rod and the rectangular groove on the screw, and at the same time, the screw can be spirally moved downward by utilizing the threaded connection between the screw and the valve body, that is, the valve core is driven to spirally move downward synchronously, so that the dynamic sealing ring approaches the static sealing ring until the static sealing ring is squeezed to fit tightly with the valve body to form a seal. At this time, an enclosed space is formed between the valve core, the dynamic sealing ring and the static sealing ring, so that the internal medium cannot leak, thereby effectively avoiding the phenomenon of water leakage during long-term use of the angle valve and improving the sealing effect of the angle valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a cross-sectional view of the double-layer dynamic sealing angle valve proposed by the utility model;

[0017] Figure 2 This is a structural schematic diagram of the double-layer dynamic sealing angle valve proposed by the utility model;

[0018] Figure 3 for Figure 1 A is an enlarged view of the structure;

[0019] Figure 4 This is a schematic structural diagram of the fixing ring in the double-layer dynamic sealing angle valve proposed by the utility model.

[0020] In the figure: 1 valve body, 2 water inlet pipe, 3 water outlet, 4 static sealing ring, 5 screw, 6 valve core, 7 dynamic sealing ring, 8 rectangular rod, 9 knob, 10 fixing ring, 11 annular groove, 12 handle, 13 threaded groove, 14 ball. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-Figure 4 The double-layer dynamic sealing angle valve comprises a valve body 1, on which a dynamic sealing assembly is arranged, and the side wall of the valve body 1 is connected with a water inlet pipe 2, and the surface of the lower end of the valve body 1 and the surface of the water inlet pipe 2 are both provided with threaded grooves 13, which can be used for connection with an external water pipe.

[0023] A water outlet 3 is provided at the bottom of the valve body 1, and a static sealing ring 4 is fixedly connected to the inner wall of the valve body 1. The static sealing ring 4 is located below the water inlet pipe 2 to ensure the sealing of the end of the valve core 6 after the water inlet pipe 2 is completely blocked.

[0024] The dynamic sealing assembly includes a screw 5 with a thread running through the top of the valve body 1. One end of the screw 5 located inside the valve body 1 is fixedly connected to a valve core 6. A dynamic sealing ring 7 is fixedly sleeved on the outer wall of the valve core 6. The dynamic sealing ring 7 is airtightly fitted to the inner wall of the valve body 1 to ensure the sealing between the valve core 6 and the valve body 1.

[0025] The top of the screw rod 5 is provided with a rectangular rod 8, and a rectangular groove matching the rectangular rod 8 is provided on the top of the screw rod 5. The upper end of the rectangular rod 8 is fixedly connected with a knob 9, and the knob 9 is movably sleeved on the outer wall of the valve body 1. The top of the knob 9 is fixedly connected with a handle 12, which is convenient for the user to turn the knob 9. When in use, when the valve body 1 needs to be sealed, the knob 9 is rotated by the handle 12, and the screw 5 can be driven to rotate by the clamping connection between the rectangular rod 8 and the rectangular groove on the screw rod 5. At the same time, the screw rod 5 can be spirally moved downward by the threaded connection between the screw rod 5 and the valve body 1, that is, the valve core 6 is synchronously spirally moved downward, so that the dynamic sealing ring 7 approaches the static sealing ring 4 until the static sealing ring 4 is squeezed to make it fit tightly with the valve body 1 to form a seal. At this time, a closed space is formed between the valve core 6, the dynamic sealing ring 7 and the static sealing ring 4, so that the internal medium cannot leak until the angle valve is effectively avoided from leaking easily due to long-term use, and the sealing effect of the angle valve is improved.

[0026] A support and limit assembly is provided between the knob 9 and the valve body 1, and the support and limit assembly includes a fixing ring 10 fixedly mounted on the outer wall of the valve body 1, and the fixing ring 10 is movably embedded in the inner wall of the knob 9. The inner wall of the knob 9 is provided with an annular groove 11 matching the fixing ring 10, and a plurality of balls 14 are movably embedded on the top and bottom of the fixing ring 10, which can reduce the friction resistance between the internal annular groove 11 and the fixing ring 10 when the knob 9 is rotated, so that the knob 9 can be rotated more easily. At the same time, the clamping connection between the fixing ring 10 and the annular groove 11 can ensure that the knob 9 can only rotate but cannot move.

[0027] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A double-layer dynamic sealing angle valve, comprising a valve body (1), characterized in that: The valve body (1) is provided with a dynamic sealing assembly, and the side wall of the valve body (1) is connected to a water inlet pipe (2), the bottom of the valve body (1) is provided with a water outlet (3), and the inner wall of the valve body (1) is fixedly connected to a static sealing ring (4); The dynamic sealing assembly comprises a screw (5) threadedly penetrating the top of the valve body (1); one end of the screw (5) located inside the valve body (1) is fixedly connected to a valve core (6); the outer wall of the valve core (6) is fixedly sleeved with a dynamic sealing ring (7); one end of the screw (5) located above the valve body (1) is slidably inserted with a rectangular rod (8); the top of the screw (5) is provided with a rectangular groove matching the rectangular rod (8); the upper end of the rectangular rod (8) is fixedly connected to a knob (9); a support and limit assembly is provided between the knob (9) and the valve body (1), and the knob (9) is movably sleeved on the outer wall of the valve body (1).

2. The double-layer dynamic sealing angle valve according to claim 1 is characterized in that: The support and limit assembly comprises a fixing ring (10) fixedly sleeved on the outer wall of the valve body (1); the fixing ring (10) is movably embedded in the inner wall of the knob (9); and the inner wall of the knob (9) is provided with an annular groove (11) matching the fixing ring (10).

3. The double-layer dynamic sealing angle valve according to claim 1 is characterized in that: The static sealing ring (4) is located below the water inlet pipe (2).

4. The double-layer dynamic sealing angle valve according to claim 1, characterized in that: The dynamic sealing ring (7) is airtightly attached to the inner wall of the valve body (1).

5. The double-layer dynamic sealing angle valve according to claim 1, characterized in that: The top of the knob (9) is fixedly connected with a handle (12).

6. The double-layer dynamic sealing angle valve according to claim 1, characterized in that: The surface of the lower end of the valve body (1) and the surface of the water inlet pipe (2) are both provided with thread grooves (13).

7. The double-layer dynamic sealing angle valve according to claim 2, characterized in that: A plurality of balls (14) are movably embedded in the top and bottom of the fixing ring (10).

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