CN205401840U - Vertical line with rubber check valve - Google Patents

Abstract

The utility model discloses a vertical rubber-lined check valve, which comprises a valve body and a valve core. The valve core is arranged in a valve cavity of the valve body. The other end of the body is an outlet that communicates with the valve cavity, and the valve core is a flap valve core hinged in the valve body, and the flap valve core can be turned over to the outlet direction of the valve body; on the inner wall of the valve body A valve body rubber lining layer is provided; a valve core rubber lining layer is provided outside the flap valve core. The spool of the check valve is a flap, which is simple in structure, easy to maintain and low in cost; the inside of the valve body and the outside of the spool are provided with a rubber lining, the wear of the valve body and spool is small, and the service life is long. The flipping impact is small, the sealing is good, and it is stable and reliable.

Description

A vertical rubber-lined check valve

technical field

The utility model relates to the technical field of valves, in particular to a vertical rubber-lined check valve.

Background technique

The existing check valve has complex structure, cumbersome manufacture, high cost, and is not easy to maintain; and the existing check valve has poor sealing performance, and the internal parts of the valve are easily damaged after long-term use, resulting in check failure and affecting normal use. It is stable and reliable Poor sex.

Utility model content

Aiming at the deficiencies of the existing technology, the technical problem to be solved by the utility model is to provide a vertical rubber-lined check valve to achieve the purpose of simple structure and stable and reliable use.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a vertical rubber-lined check valve, including a valve body and a valve core, the valve core is arranged in the valve cavity of the valve body, and the valve body One end is the inlet connected with the valve cavity, the other end of the valve body is the outlet connected with the valve cavity, the valve core is a flap valve core hinged in the valve body, and the flap valve core can be connected to the outlet The direction is reversed and set; the inner wall of the valve body is provided with a valve body rubber lining; the outside of the flap valve core is provided with a valve core rubber lining.

Further, the valve body includes an upper valve body and a lower valve body, and the upper valve body and the lower valve body are matched through flange surfaces.

The flap valve core is hinged in the valve body through a rotating shaft, and a torsion spring is arranged on the rotating shaft.

The inlet is arranged on the lower valve body, the outlet is arranged on the upper valve body, and the flap valve core is hinged on the flange surface of the lower valve body.

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

The spool of the check valve is a flap, which is simple in structure, easy to maintain, and low in cost; the inside of the valve body and the outside of the spool are provided with a rubber lining, the wear of the valve body and spool is small, and the service life is long. The flipping impact is small, the sealing is good, and it is stable and reliable.

Description of drawings

The following is a brief description of the content expressed in the drawings of this manual and the marks in the drawings:

Figure 1 is a cross-sectional view of the practical vertical rubber-lined check valve.

In the figure: 1. Upper valve body, 2. Lower valve body, 3. Rotary shaft, 4. Flap valve core, 5. Flange, 6. Upper valve body rubber lining, 7. Valve core rubber lining, 8. Lower valve body rubber lining.

detailed description

The specific implementation of the present utility model will be described in further detail below by describing the embodiments with reference to the accompanying drawings.

As shown in Figure 1, the vertical rubber-lined check valve includes a valve body and a valve core. It is a three-dimensional structure, the upper valve body 1 is located above the lower valve body 2, the upper valve body is located above, and the lower valve body is located below. The blue surface is tightly connected.

The lower end of the valve body is the inlet connected with the valve cavity, and the upper end of the valve body is the outlet connected with the valve cavity, the flow direction of the medium is from bottom to top, and the medium is non-return from top to bottom.

The spool is a flap spool 4 hinged in the valve body. The flap spool 4 can be turned over to the outlet direction of the valve body. The flap spool is blocked downward by the flange surface on the upper part of the lower valve body. Part of the flange surface is located in the valve cavity of the valve body.

The flap valve core 4 is hinged to the upper flange surface of the lower valve body through the rotating shaft 3. The flap valve core can be in a horizontal state when it is put down. Seal the passage in the lower valve body of the lower part, and the lower valve body 2 is provided with a flange 5 connected to the medium pipeline to achieve the check of the medium fluid; the medium fluid can smoothly open the flap valve core from bottom to top.

A torsion spring is arranged on the rotating shaft 3, and under the action of the torsion force of the torsion spring, the flap valve core is automatically turned down to cooperate with the flange surface in the valve cavity of the lower valve body. The check valve can also be placed horizontally through the setting of the torsion spring, and the check effect can also be realized. In the absence of a torsion spring, the flap valve core is flushed down by gravity or fluid, and the flap valve core is lowered to seal, so as to realize the fluid non-return.

The inner wall of the valve body is provided with a rubber lining layer of the valve body, specifically, the inner wall of the upper valve body is provided with an upper valve body rubber lining layer 6, the inner wall of the lower valve body is provided with a lower valve body rubber lining layer 8, and the flap A valve core rubber lining layer 7 is provided outside the valve core. The wear of the valve body and the valve core is small, the impact of the valve core turning is small, and the service life is long. The rubber-lined layer enables the flap valve core to be in flexible contact with the flange surface of the lower valve body, and the sealing effect of the flexible seal is better, and the precision requirement for the flap valve core is lowered, the manufacturing process is simple, and the cost is low.

The utility model has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited by the above-mentioned method, as long as various insubstantial improvements made by the idea and technical solutions of the utility model are adopted, or there is no Those who directly apply the idea and technical solution of the utility model to other occasions through improvement are within the protection scope of the utility model.

Claims (4)

1. A vertical rubber-lined check valve, comprising a valve body and a spool, the spool being arranged in the valve cavity of the valve body, characterized in that: one end of the valve body is an inlet communicating with the valve cavity, The other end of the valve body is an outlet connected to the valve cavity, and the valve core is a flap valve core hinged in the valve body, and the flap valve core can be turned over to the outlet direction of the valve body; the inner wall of the valve body A valve body rubber lining layer is provided on the valve body; a valve core rubber lining layer is provided on the outside of the flap valve core. 2 . The vertical rubber-lined check valve according to claim 1 , wherein the valve body includes an upper valve body and a lower valve body, and the upper valve body and the lower valve body are matched through a flange surface. 3. The vertical rubber-lined check valve according to claim 1, wherein the flap valve core is hinged in the valve body through a rotating shaft, and a torsion spring is arranged on the rotating shaft. 4. The vertical rubber-lined check valve according to claim 2, characterized in that: the inlet is set on the lower valve body, the outlet is set on the upper valve body, and the flap valve core is hinged on the flange surface of the lower valve body .