CN205348352U - Vacuum valve gets connection structure of gas port to vacuum line - Google Patents

Abstract

The utility model discloses a connection structure from a vacuum valve to an air intake port of a vacuum pipeline, which comprises a hose connected with the vacuum valve, a first T-shaped connector installed at the air intake port, two The two outlets are respectively connected to the vacuum pipeline, and the upper outlet is sealed with the first pipeline; the other end of the first pipeline is equipped with a variable diameter, and the variable diameter is connected to a second T-shaped connector through the first joint, and the second T One outlet of the shaped connector is connected with a plug or a pressure gauge, and the other outlet is connected to the aforementioned flexible pipe through a second joint. The utility model solves the problems of easy movement and poor sealing performance of the hose in the traditional connection mode, realizes the gas path connection from the copper vacuum valve interface to the air intake port of the UPVC material vacuum pipeline, and effectively prevents the backflow of sewage in the vacuum pipeline into the hose. The utility model has the characteristics of simple structure and firm connection.

Description

A connection structure from a vacuum valve to an air intake port of a vacuum pipeline

technical field

The utility model belongs to the field of vacuum drainage, in particular to a connection structure from a vacuum valve to an air intake port of a vacuum pipeline.

Background technique

At present, the outdoor drainage system mainly adopts the gravity system. The sewage at the user end flows from the high place to the low place under the action of the earth's gravity through the gravity pipeline laid down along the road. The gravity drainage system has the advantages of simple construction and low operation and maintenance costs, but it is easily restricted by the terrain, the excavation volume is large, and the ground is highly destructive. Therefore, in recent years, vacuum drainage technology is gradually entering people's field of vision. Vacuum pipeline laying does not require slope, has a wide range of applications, reduces excavation depth, and saves construction space and infrastructure costs. Its working principle is: when the liquid level reaches the predetermined height, the pilot valve is switched to the vacuum interface, the vacuum valve is connected to the vacuum pipeline, the air in the working chamber is sucked away, and the vacuum valve is opened under the atmospheric pressure of the medium inlet.

Most of the existing vacuum valves are connected to the air intake port by directly binding the vacuum hose, which causes the hose to move easily during vacuum pumping, and sometimes the two ends of the hose will be separated from the working position, which affects people's normal life. use.

In addition, because the vacuum pipeline needs to consider the corrosiveness of sewage, UPVC is often used, while the hose is a plastic hose. How to connect these two materials in a more reliable way while ensuring airtightness has become a problem. A big problem for those skilled in the art.

Utility model content

In order to overcome the above problems, the utility model provides a connection structure from the vacuum valve to the air inlet of the vacuum pipeline, which solves the problem that the existing connection is not firm and the hose is easy to move.

The technical solution adopted by the utility model to solve the technical problem is: a connection structure from the vacuum valve to the air intake port of the vacuum pipeline, including a hose connected to the vacuum valve, and a first T-shaped connector installed at the air intake port. The left and right outlets of the first T-shaped connector are respectively connected to the vacuum pipeline. The upper outlet is sealed with the first pipeline. A connecting piece, one outlet of the second T-shaped connecting piece is connected with a plug or a pressure gauge, and the other outlet is connected to the aforementioned hose through a second joint. In order to test the pressure during maintenance, a pressure gauge can be connected to the second T-shaped connector, and a plug can be installed in the non-maintenance state to ensure the airtightness of the system.

As another embodiment of the present invention, a second pipeline is further provided between the variable diameter and the first joint. The function of the second pipeline is to prolong the vertical height of the gas path, preventing the sewage in the vacuum pipeline from flowing into the hose under pressure.

The above-mentioned first pipeline, reducing diameter and second pipeline are all vertically extended upwards. This design can prevent the sewage in the vacuum pipeline from flowing backward into the vacuum interface of the pilot valve to achieve gas-liquid separation. Further, the second T-shaped connection The outlet connected to the hose on the piece is vertically arranged with the outlet connected to the first joint on the second T-shaped connecting piece.

As a specific connection method of the present invention, both ends of the above-mentioned first joint are provided with external threads, and both the variable diameter and the second T-shaped connector are provided with internal teeth that are compatible with the external threads; the second joint is Push-in fittings. In addition, in order to further improve the sealing performance, a sealant or a sealing ring is also provided at the joints of the above-mentioned pipe fittings.

Furthermore, the vacuum pipeline is made of UPVC material, and its nominal pressure is greater than 1.0MPa; the first T-shaped connector, the first pipe and the reducing diameter are all made of UPVC material, and the first joint, the second joint and the second T Shaped connectors are made of stainless steel or copper.

Considering the corrosiveness of sewage, most of the vacuum pipelines are made of UPVC materials, while the hoses are made of plastic materials. Therefore, how to connect the hoses on the vacuum valves with the air inlet of the vacuum pipelines in a more reliable and firm way has become a problem. A big problem for those skilled in the art. The present invention connects the vacuum pipeline with the first pipeline through the first T-shaped connector made of UPVC material, installs a UPVC variable diameter on the upper end of the first pipeline, and then connects the above UPVC variable diameter and stainless steel or copper through the first joint. The material is made into a second T-shaped connector, and finally the hose is connected to the vacuum port of the pilot valve through the second connector. The air inlet of the first pipeline is set above the vacuum pipeline, which can reduce the possibility of sewage flowing into the vacuum interface of the pilot valve at the source. In addition, the above-mentioned first pipeline, reducing diameter and second pipeline are arranged vertically upwards, and their specific heights can be set according to the air pressure in the vacuum pipeline, so as to further prevent sewage from flowing backward. In addition, the outlet connected to the hose on the second T-shaped connector is vertically arranged with the outlet connected to the first joint on the second T-shaped connector, so as to further prevent sewage from entering the vacuum port of the pilot valve. The utility model will be described in detail below in conjunction with the accompanying drawings and embodiments.

Description of drawings

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

In the figure, 61, the first T-shaped connector; 62, the first pipe; 63, the variable diameter; 64, the vacuum pipeline; 65, the second T-shaped connector; 66, the pressure instrument; 67, the hose; 68, the first A joint; 69, the second joint.

detailed description

Example,

Please refer to Fig. 1, a connection structure from a vacuum valve to the air intake port of the vacuum pipeline, including an air intake port arranged on the vacuum pipeline 64, the vacuum valve is provided with a vacuum interface communicated with the air intake port, and the vacuum interface is provided with a soft Pipe 67, the first T-shaped connector 61 is installed at the air intake, the left outlet of the first T-shaped connector 61 is connected to the medium outlet of the vacuum valve through the vacuum pipeline 64, the right outlet is connected to the vacuum pipeline 64, and the upper outlet is sealed. There is a first pipeline 62, the end of the first pipeline 62 is connected with a variable diameter 63, and the variable diameter 63 is threaded to a second T-shaped connector 65 through a first joint 68, and the upper part of the second T-shaped connector 65 The outlet is connected with a pressure gauge 66 , and the left outlet is equipped with a second connector 69 connected with a hose 67 .

The above-mentioned vacuum pipeline 4 is made of UPVC material, and its nominal pressure is greater than 1.0MPa.

The first T-shaped connector 61 , the first pipe 62 and the variable diameter 63 are all made of UPVC material, and the second T-shaped connector 65 , the first joint 68 and the second joint 69 are made of stainless steel or copper.

The utility model has been introduced in detail above. In this paper, specific examples have been used to illustrate the principle and implementation of the utility model. The description of the above embodiments is only used to help understand the method of the utility model and its core idea, not to explain the utility model. The scope of the new model is limited, and at the same time, on the premise of not departing from the design spirit of the present utility model, equivalent changes or decorations made by those skilled in the art to the structure, features and principles of the present utility model shall fall within the scope of this utility model. new type of protection.

Claims (5)

1. a vacuum valve is to the attachment structure of vacuum line air hatch, including the flexible pipe being connected with vacuum valve, it is characterized in that: also include being arranged on the first T-connecting piece of air hatch, the outlet of two, the left and right of this first T-connecting piece connects vacuum line respectively, and exit, top is sealedly connected with the first pipeline；The other end of described first pipeline is provided with reducing, and this reducing is connected to the second T-connecting piece by the first joint, and an outlet of this second T-connecting piece is connected to plug or manometer, and another outlet is docked with aforementioned flexible pipe mutually by the second joint.

2. as claimed in claim 1 vacuum valve to the attachment structure of vacuum line air hatch, it is characterised in that: be additionally provided with second pipe between described reducing and the first joint.

3. as claimed in claim 1 vacuum valve to the attachment structure of vacuum line air hatch, it is characterised in that: the outlet being connected with flexible pipe on described second T-connecting piece, with the exit normal layout being connected with the first joint on the second T-connecting piece.

4. as described in any one of claims 1 to 3 vacuum valve to the attachment structure of vacuum line air hatch, it is characterised in that: the two ends of described first joint are equipped with external screw thread, reducing and be equipped with the interior tooth suitable with external screw thread on the second T-connecting piece；Second joint is Quick-insertion type pipe joint.

5. as claimed in claim 4 vacuum valve to the attachment structure of vacuum line air hatch, it is characterised in that: described vacuum line adopts UPVC material to make, and its nominal pressure is more than 1.0MPa；First T-connecting piece, the first pipeline and reducing all adopt UPVC material to prepare, and the first joint, the second joint and the second T-connecting piece adopt rustless steel or copper material to prepare.