CN217539767U

CN217539767U - Valve self-closing device

Info

Publication number: CN217539767U
Application number: CN202123244083.3U
Authority: CN
Inventors: 张红盛
Original assignee: Yancheng Zhichi Machinery Co ltd
Current assignee: Yancheng Zhichi Machinery Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-10-04
Anticipated expiration: 2031-12-22

Abstract

The utility model discloses a valve self-closing device, which comprises a cylindrical self-closing body connected to the bottom end of a valve rod of a faucet, wherein the inner cavity of the self-closing body is provided with a floating plug smaller than the self-closing body in size, the lower end of the self-closing body is provided with a frustum used for sealing a faucet pipeline, the frustum is matched with a sealing ring on the faucet pipeline, the self-closing body is provided with a water inlet and a water outlet, the water inlet is arranged on the lower end surface of the frustum, and the water outlet is arranged on the side surface of the frustum; the lower end of the floating plug is integrally provided with a conical surface, and the sealing ring is provided with a round hole matched with the conical surface; the size of the round hole is smaller than that of the water inlet. The utility model discloses the technical improvement is with low costs, and the technical improvement degree is little, only need on the basis of current tap structure change this self-closing device relate to the sealing washer and the self-closing body can, self-closing internal floating plug that has, this self-closing device unblock is unanimous with switching tap operation, easy operation.

Description

Valve self-closing device

Technical Field

The utility model relates to a valve self-closing device.

Background

Traditional valve generally includes the valve body, is provided with valve clack and valve rod in the valve body, and it is usually through manual control or intelligent electric control with closing, and manual control is comparatively loaded down with trivial details, forgets easily moreover to open or close, and intelligent control's is with high costs, and the operation needs power consumptively. In addition, in winter or severe cold weather, the water pipe is frozen or water in the water pipe is frozen, so that the water valve of the water faucet can not be opened to discharge water, and a resident can open the water faucet for waiting for water discharge and forget the water faucet due to other things, so that the valve self-closing device is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the defect that exists among the prior art, provide a valve self-closing device, the technical improvement is with low costs, and the technical improvement degree is little, only need on the basis of current tap structure change this self-closing device relate to the sealing washer and the self-closing body can, self-closing internal floating plug that has, this self-closing device unblock is unanimous with switching tap operation, easy operation.

In order to achieve the purpose, the technical scheme of the utility model is to design a valve self-closing device, which comprises a cylindrical self-closing body connected to the bottom end of a valve rod of a faucet, wherein the inner cavity of the self-closing body is provided with a floating plug smaller than the self-closing body in size, the lower end of the self-closing body is provided with a frustum for sealing a faucet pipeline, the frustum is matched with a sealing ring on the faucet pipeline, the self-closing body is provided with a water inlet and a water outlet, the water inlet is arranged on the lower end surface of the frustum, and the water outlet is arranged on the side surface of the frustum; the lower end of the floating plug is integrally provided with a conical surface, and the sealing ring is provided with a round hole matched with the conical surface; the size of the round hole is smaller than that of the water inlet. The self-closing body is downwards matched with the sealing ring through the frustum by rotating the valve rod of the faucet, so that the pipeline of the faucet is not communicated, the effects of closing the faucet and not discharging water are realized, when the valve rod of the faucet is reversely rotated, the frustum is not abutted to the sealing ring, when water in a water pipe is normal (namely the condition that the water in the water pipe is frozen does not occur), the water flows out from a gap between the frustum and the sealing ring after passing through the sealing ring from bottom to top, and the floating plug in the self-closing body floats on the water surface due to the fact that water flow always exists, so that the sealing ring is not blocked downwards.

The technical scheme is that the sealing ring is arranged at an installation groove of the faucet pipeline, and the upper end of the sealing ring is provided with a taper hole matched with the frustum; the circular hole is arranged on the bottom wall of the taper hole and extends downwards; the upper part of the frustum is big and the lower part is small. After the arrangement, the valve rod of the water tap is rotated, the self-closing body is downward to realize the blockage of the water tap pipeline after being matched with the taper hole on the sealing ring through the frustum, when the valve rod of the water tap is reversely rotated, the frustum leaves the taper hole and is not abutted against the sealing ring, when the water in the water pipe is normal (namely the condition that the water in the water pipe is not frozen), the water flows out from the gap between the frustum and the inner side wall of the taper hole of the sealing ring after passing through the taper hole from the round hole from bottom to top (namely passing through the taper hole from the round hole), and the floating plug in the self-closing body floats on the water surface without blocking the sealing ring downwards because the water flow always flows from the water inlet of the frustum to the water outlet. When the water in the water pipe is frozen (indicating the water in the outdoor water conveying pipe) and a householder opens the valve rod of the water tap to wait for the water coming, the floating plug descends until the conical surface of the floating plug seals the round hole because no flowing water exists in the conical platform any more, and after the water in the outdoor water pipe is thawed, the round hole is blocked by the floating plug, so the condition of 'water overflowing the golden hill' can not occur.

The further technical scheme is that the sealing ring is arranged at the joint of the water inlet pipeline and the water outlet pipeline of the faucet pipeline.

The technical scheme is that the floating plug is composed of a cylindrical floating plug body at the upper end and a conical surface at the lower end, and the size of the upper end of the floating plug is smaller than that of the water inlet of the frustum.

The further technical proposal is that the self-closing body is fixedly connected with the bottom end of the valve stem of the water tap; or the inner side wall of the upper end of the self-closing body is provided with an internal thread, and the self-closing body is fixedly connected with the valve rod of the faucet through the internal thread.

The utility model has the advantages and the beneficial effects that: the self-closing device has the advantages of low technical improvement cost and small technical improvement degree, only the sealing ring and the self-closing body related to the self-closing device need to be replaced on the basis of the structure of the existing faucet, the floating plug is arranged in the self-closing body, the self-closing device is consistent in unlocking and faucet opening and closing operation, and the operation is simple.

Drawings

Fig. 1 is a schematic view of a faucet adopting the valve self-closing device of the invention;

FIG. 2 is a cross-sectional view of the upper end of FIG. 1;

FIG. 3 is a cross-sectional view of the lower end of FIG. 1;

FIG. 4 is a schematic view of a self-closing body attached to the lower end of a faucet valve stem;

FIG. 5 is a schematic view of the floating plug of FIG. 4;

fig. 6 is a schematic view of the seal ring of fig. 3.

In the figure: 1. a faucet valve stem; 2. a self-closing body; 3. a floating plug; 4. a frustum; 5. a seal ring; 6. a water inlet; 7. a water outlet; 8. a conical surface; 9. a circular hole.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 to 6, the utility model relates to a valve self-closing device, which comprises a cylindrical self-closing body 2 connected to the bottom end of a valve rod 1 of a faucet, wherein an inner cavity of the self-closing body 2 is provided with a floating plug 3 which is smaller than the self-closing body 2 in size, the lower end of the self-closing body 2 is provided with a frustum 4 for sealing a faucet pipeline, the frustum 4 is matched with a sealing ring 5 on the faucet pipeline, the self-closing body 2 is provided with a water inlet 6 and a water outlet 7, the water inlet 6 is arranged on the lower end surface of the frustum 4, and the water outlet 7 is arranged on the side surface of the frustum 4; the lower end of the floating plug 3 is integrally provided with a conical surface 8, and the sealing ring 5 is provided with a round hole 9 matched with the conical surface 8; the size of the circular hole 9 is smaller than that of the water inlet 6. The sealing ring 5 is arranged at the mounting groove of the faucet pipeline, and the upper end of the sealing ring 5 is provided with a taper hole matched with the frustum 4; the round hole 9 is arranged on the hole bottom wall of the taper hole and extends downwards; the frustum 4 is big end up. The sealing ring 5 is arranged at the joint of the water inlet pipeline and the water outlet pipeline of the faucet pipeline. The floating plug 3 is composed of a cylindrical floating plug 3 body at the upper end and a conical surface 8 at the lower end, and the size of the upper end of the floating plug 3 is smaller than that of the water inlet 6 of the frustum 4. The self-closing body 2 is fixedly connected to the bottom end of the valve rod 1 of the faucet; or the inner side wall of the upper end of the self-closing body 2 is provided with an internal thread, and the self-closing body 2 is fixedly connected with the faucet valve rod 1 through the internal thread.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A valve self-closing device is characterized by comprising a cylindrical self-closing body connected to the bottom end of a valve rod of a faucet, wherein a floating plug smaller than the self-closing body in size is arranged in an inner cavity of the self-closing body; the lower end of the floating plug is integrally provided with a conical surface, and the sealing ring is provided with a round hole matched with the conical surface; the size of the round hole is smaller than that of the water inlet.

2. The valve self-closing device according to claim 1, wherein the sealing ring is arranged at the mounting groove of the faucet pipeline, and the upper end of the sealing ring is provided with a taper hole matched with the frustum; the circular hole is arranged on the hole bottom wall of the taper hole and extends downwards; the upper part of the frustum is big and the lower part is small.

3. The valve self-closing device of claim 2, wherein the sealing ring is disposed at the junction of the water inlet pipe and the water outlet pipe of the faucet pipe.

4. The self-closing device for the valve as claimed in claim 3, wherein the floating plug is composed of a cylindrical floating plug body at the upper end and a conical surface at the lower end, and the size of the upper end of the floating plug is smaller than that of the water inlet of the frustum.

5. The self-closing device of claim 4, wherein the self-closing body is fixedly connected to the bottom end of the valve stem of the faucet; or the inner side wall of the upper end of the self-closing body is provided with an internal thread, and the self-closing body is fixedly connected with the valve rod of the faucet through the internal thread.