CN205311634U - Condensation structure is prevented to goat - Google Patents

Abstract

The utility model relates to the technical field of switch machines, in particular to an anti-condensation structure of a switch machine, which comprises a switch machine box body, the side of the switch machine box body is recessed inward to form a vent valve installation groove, and the vent valve is installed A waterproof and breathable valve is installed in the groove. The waterproof and breathable valve is mainly composed of a valve cover, a valve body, an O-ring and front and rear collars. The valve cover is fixed on the valve body, and the O-shaped seal The ring is set on the valve body, and the front and rear collars fix the valve body on the installation groove of the ventilation valve from the inner and outer sides of the installation groove of the ventilation valve. The utility model solves the condensation problem of the switch machine. Two waterproof and breathable valves are installed on the side wall of the bottom shell, which can balance the pressure difference inside and outside the bottom shell. As long as the air flows, the water vapor can be taken out of the bottom shell. Avoid condensation or even frost. The normal operation of the circuit of the switch machine is guaranteed, and the potential safety hazard is solved.

Description

Anti-condensation structure of switch machine

technical field

The utility model relates to the technical field of switch machines, in particular to an anti-condensation structure of a switch machine.

Background technique

There are many types of switch machines in China. In the weather with large temperature difference, water vapor will remain in the switch machine box. When the water vapor is cold, it will condense into water droplets and cover the metal parts, causing parts to rust, etc. . When the weather is cold and the water droplets freeze, it may cause the dynamic and static contacts to not work normally, and the control and display circuits cannot be connected normally, causing great safety hazards to the safe operation of the railway.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the above-mentioned technologies, and provide an anti-condensation structure of a switch machine to solve the structure of condensation inside the switch machine.

In order to achieve the above purpose, the utility model adopts the following technical solutions: a switch machine anti-condensation structure, which is characterized in that it includes a switch machine box, and the side of the switch machine box is sunken inward to form a venting valve installation groove, A waterproof and breathable valve is installed in the installation groove of the breathable valve. The waterproof and breathable valve is mainly composed of a valve cover, a valve body, an O-shaped sealing ring, and front and rear collars. The valve cover is fixed on the valve body. The O-shaped sealing ring is set on the valve body, and the front and rear collars fix the valve body on the installation groove of the ventilation valve from the inside and outside sides of the installation groove of the ventilation valve. The utility model solves the condensation problem of the switch machine. Two waterproof and breathable valves are installed on the side wall of the bottom shell. The waterproof and breathable valves use the volume difference between gas molecules, liquid and dust particles to allow gas molecules to pass through. , while liquid and dust cannot pass through. Coupled with a waterproof and breathable valve, it can balance the pressure difference inside and outside the bottom case. As long as the air flows, water vapor can be taken out of the bottom case to avoid condensation or even frost. The normal operation of the switch machine circuit is guaranteed, and the potential safety hazard is solved.

There are two waterproof and breathable valves, which are respectively installed on the two side plates of the switch machine casing.

The beneficial effects of the utility model are: the utility model solves the problem of the condensation of the switch machine, and installs two waterproof and breathable valves at the upper position of the side wall of the bottom shell, and the waterproof and breathable valve utilizes the volume of gas molecules, liquid and dust particles The order of magnitude difference in size allows gas molecules to pass through, but liquids and dust cannot pass through. Coupled with a waterproof and breathable valve, it can balance the pressure difference inside and outside the bottom case. As long as the air flows, water vapor can be taken out of the bottom case to avoid condensation or even frost. The normal operation of the switch machine circuit is guaranteed, and the potential safety hazard is solved.

Description of drawings

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

detailed description

The specific implementation of the utility model will be described in detail below in conjunction with the accompanying drawings and preferred embodiments. As shown in Figure 1, a switch machine anti-condensation structure includes a switch machine box 1, the side of the switch machine box is recessed inwardly to form a vent valve installation groove 2, and a breather valve installation groove 2 is installed in the vent valve installation groove. Waterproof and breathable valve, the waterproof and breathable valve is mainly composed of valve cover 3, valve body 4, O-ring 5 and front and rear collars 6, 7, the valve cover is fixed on the valve body, the O The type sealing ring is set on the valve body, and the front and rear collars fix the valve body on the installation groove of the ventilation valve from the inner and outer sides of the installation groove of the ventilation valve. There are two waterproof and breathable valves, which are respectively installed on the two side plates of the switch machine casing.

The utility model solves the condensation problem of the switch machine. Two waterproof and breathable valves are installed on the side wall of the bottom shell. The waterproof and breathable valves use the volume difference between gas molecules, liquid and dust particles to allow gas molecules to pass through. , while liquid and dust cannot pass through. Coupled with a waterproof and breathable valve, it can balance the pressure difference inside and outside the bottom case. As long as the air flows, water vapor can be taken out of the bottom case to avoid condensation or even frost. The normal operation of the switch machine circuit is guaranteed, and the potential safety hazard is solved.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made. Retouching should also be regarded as the scope of protection of the present utility model.

Claims (2)

1. A switch machine anti-condensation structure, characterized in that: it includes a switch machine box, the side of the switch machine box is sunken inward to form a vent valve installation groove, and a waterproof and breathable valve is installed in the breath valve installation groove. Valve, the waterproof and breathable valve is mainly composed of a valve cover, a valve body, an O-ring and front and rear collars, the valve cover is fixed on the valve body, and the O-ring is set on the valve On the body, the front and rear collars fix the valve body on the installation groove of the ventilation valve from the inner and outer sides of the installation groove of the ventilation valve. 2. The anti-condensation structure of the switch machine according to claim 1, characterized in that there are two waterproof and breathable valves, which are respectively installed on the two side plates of the switch machine box.