CN206439547U - Snap joint - Google Patents

Abstract

The utility model is a quick connector. It includes screw plug, spring, cone valve, valve seat, arc expansion tube and base body, wherein the arc expansion tube is installed on the top of the base body, the valve seat is installed on the top of the arc expansion tube, and the bottom of the valve seat is provided with Cone hole and damping hole, the cone valve is installed on the cone hole, the screw plug is installed on the top of the valve seat, and the screw plug is provided with a water inlet, and a spring is installed between the cone valve and the screw plug. Under the premise of ensuring safety, the joint of the utility model is convenient to operate, quick to fill water, and saves time and effort.

Description

Quick Connector

technical field

The utility model relates to a quick connector, in particular to a quick connector for adding water to a train water tank, which belongs to the innovative technology of the quick connector.

Background technique

The joints used when adding water to the existing train water tank are generally threaded to connect with the train water tank. The disadvantage of this is that the operation is cumbersome, time-consuming and labor-intensive.

Contents of the invention

The purpose of this utility model is to provide a quick connector in consideration of the above problems. Under the premise of ensuring safety, the joint of the utility model has the advantages of convenient operation, fast water filling, time-saving and labor-saving.

The technical scheme of the utility model is: the quick connector of the utility model includes a screw plug, a spring, a cone valve, a valve seat, an arc-shaped expansion tube, and a base body, wherein the arc-shaped expansion tube is installed on the top of the base body, and the valve seat is installed on the top of the base body. It is installed on the top of the arc-shaped expansion tube, and the bottom of the valve seat is provided with a cone hole and a damping hole. The cone valve is installed on the cone hole, and the screw plug is installed on the top of the valve seat. A spring is arranged between the plug and the screw plug.

Compared with the prior art, the utility model has the following advantages:

1) The water pipe joint of this utility model relies on the deformation of the elastic body to achieve tension. In order to make the water injection pipe joint reliably clamped, the water inlet of the water tank is also made into a corresponding arc-shaped concave surface.

2) The elastic body on the joint of the utility model can be deformed and tensioned under the action of pressure, and deformed and retracted after the pressure is released, but still has a certain supporting rigidity to ensure that the joint has a certain rigidity.

3) A spring is installed between the cone valve and the screw plug of the utility model. The cone valve is equivalent to a one-way valve. The opening pressure of the one-way valve can be adjusted by all the springs on the one-way valve, and can be controlled by controlling the deformation of the elastic body. clamping force.

The utility model is a quick connector with ingenious design, convenient operation, excellent performance, convenience and practicality.

Description of drawings

Fig. 1 is the structural representation of the utility model.

detailed description

Example:

The structural diagram of the utility model is shown in Figure 1. The quick joint of the utility model includes a screw plug 1, a spring 2, a cone valve 3, a valve seat 4, an arc-shaped expansion tube 5, and a base body 7, wherein the arc-shaped expansion tube 5 is installed on the top of the base 7, the valve seat 4 is installed on the top of the arc-shaped expansion tube 5, the bottom of the valve seat 4 is provided with a tapered hole and a damping hole 6, the cone valve 3 is installed on the tapered hole, and the screw plug 1 It is installed on the top of the valve seat 4, and the screw plug 1 is provided with a water inlet, and a spring 2 is installed between the cone valve 3 and the screw plug 1.

In order to facilitate operation and realize quick connection, the screw plug 1 and the valve seat 4 are connected by threads.

In this embodiment, the above-mentioned arc-shaped expansion tube 5 and the base body 7 are connected by thermal vulcanization or adhesive bonding.

In this embodiment, the valve seat 4 and the arc-shaped expansion tube 5 are connected by thermal vulcanization or adhesive bonding.

The quick connector of the utility model is a water injection joint that can be automatically expanded and tightened and released automatically. The one-way valve that seat 4 forms is closed, and the water injection joint is inserted into the water inlet of water tank, because there is not water in the pipe, arc expansion tube 5 can shrink, is easy to insert the water inlet of water tank. Then open the water injection main valve switch. At the beginning, the water pressure is lower than the opening pressure of the one-way valve. Under the action of this water pressure, the arc expansion tube 5 expands and is stuck in the arc concave surface of the water inlet of the water tank, and the water injection tube is locked. As the water pressure rises, the poppet valve 3 is opened to start water injection. After the water injection is finished, close the water injection main valve switch, the water in the pipe is released through the damping hole 6, and the arc expansion tube 5 is shrunk, and the water injection joint is easy to deviate from the arc concave surface of the water tank water inlet. In addition, the water injection main valve can be opened and closed individually or collectively by wireless remote control.

Claims (6)

1. A quick connector, characterized in that it includes a screw plug, a spring, a cone valve, a valve seat, an arc-shaped expansion tube, and a base body, wherein the arc-shaped expansion tube is installed on the top of the base body, and the valve seat is installed on the arc-shaped expansion tube. The top of the pipe and the bottom of the valve seat are provided with taper holes and damping holes. The cone valve is installed on the taper hole, and the screw plug is installed on the top of the valve seat. Equipped with a spring. 2. The quick connector according to claim 1, characterized in that the screw plug (1) and the valve seat are connected by threads. 3. The quick joint according to claim 1, characterized in that the arc-shaped expansion tube and the base are connected by thermal vulcanization. 4. The quick joint according to claim 1, characterized in that the arc-shaped expansion tube and the base are connected by adhesive bonding. 5. The quick connector according to any one of claims 1 to 4, characterized in that the valve seat and the arc-shaped expansion tube are connected by thermal vulcanization. 6. The quick connector according to any one of claims 1 to 4, characterized in that the valve seat and the arc-shaped expansion tube are connected by adhesive bonding.