CN207093870U - Discharging emergency cut-off foot valve - Google Patents

Abstract

Unloading emergency cut-off foot valve, including foot valve, butterfly valve, flange transfer outlet and dust cover, gaskets are respectively arranged between the foot valve, butterfly valve and flange transfer outlet, and the foot valve, butterfly valve and flange transfer outlet pass through the connecting piece The connection is fixed, the connecting piece is composed of connecting bolts, spring washers and nuts, the opening assembly is set in the foot valve and connected with the valve stem of the foot valve, the valve stem is connected with the handle at the end, the valve stem is connected with the valve core, and the valve core is flexibly connected In the spring cage of the foot valve, the valve core is connected with a spring, and a spring pressing plate is arranged between the spring top and the foot valve housing. The utility model is composed of a foot valve, a butterfly valve and an outlet, which realizes the emergency cut-off function of the valve body, and can ensure that the emergency cut-off valve of the road transport liquid dangerous goods vehicle or tank container occurs, and prevents the leakage of dangerous liquid; it is more aimed at The vehicles and tanks in production or in use can replace the bottom unloading ball valve with strong versatility.

Description

Unloading emergency cut-off foot valve

technical field

The utility model relates to a valve, in particular to a discharge emergency cut-off foot valve.

Background technique

Traditional tank truck and tank container bottom unloading valves are ball valves with short service life, inflexible opening, and no emergency cut-off function. At the same time, the conventional configuration is 3 inches, the unloading speed is slow, and the outlet end is threaded, which makes assembly and transfer complicated. , Once the thread is damaged, it will cause the site to fail to unload normally or unload, which will seriously affect the efficiency and cause safety and environmental protection hazards. At present, the road transportation of liquid dangerous goods vehicles is growing rapidly. The annual output of this type of vehicle is high and the number of stocks is large. Every year, there are many safety and environmental accidents such as explosion and leakage of transported goods caused by road traffic accidents of this type of vehicle. When an accident occurs, it is not uncommon for this type of vehicle to have accidents caused by the leakage of hazardous chemicals due to the failure of the previously installed discharge ball valve. At present, large-diameter large gate valves or butterfly valves and simple outlets are generally used in the tanker industry, and there are factors such as bulky, inflexible switches, and leakage. Nowadays, the domestic standards for vehicles that transport liquid dangerous goods on the road are gradually improved, and the discharge valve at the bottom of this type of vehicle needs to be With emergency cut-off function.

Utility model content

The utility model provides an emergency cut-off foot valve for unloading to solve the problems in the prior art that the switch is inflexible and does not have the emergency cut-off function.

The technical scheme that the utility model solves its technical problem adopts is:

An emergency cut-off foot valve for unloading, including a foot valve, a butterfly valve, a flange transfer outlet, and a dust cover. Gaskets are respectively arranged between the foot valve, butterfly valve, and flange transfer outlet, and the foot valve, butterfly valve, and flange transfer outlet pass through The connecting piece is connected and fixed. The connecting piece is composed of connecting bolts, spring washers and nuts. The opening assembly is arranged in the foot valve and connected with the valve stem of the foot valve. The valve stem is connected with the handle at the end, and the valve stem is connected with the valve core. It is movably connected in the spring cage of the foot valve, the valve core is connected with a spring, and a spring pressing plate is arranged between the top of the spring and the foot valve housing.

Above-mentioned foot valve is 30 degree foot valves.

The above-mentioned flange transfer outlets are threaded outlets and quick-connect structure outlets.

The working principle of the utility model: while turning the handle, the opening assembly will rotate, and then push the valve core to rise to the highest point along the spring cage. During this process, the spring will be compressed. The spring is set at one end to connect with the valve core. One end is connected with the spring pressure plate, turn the handle in the direction of closing the valve, the valve core will be quickly pushed to the sealing state under the action of the spring, in this way, the foot valve is opened or closed. The valve body of the utility model is an emergency cut-off combination valve for unloading. If the part is subjected to a large impact force when an accident occurs, the valve body part will be automatically cut off or deformed to release the impact energy to protect the tank body from damage. At the same time, the valve itself The sealing mechanism is not subject to any damage to ensure that the transported goods do not leak and cause safety accidents.

The utility model is composed of a foot valve, a butterfly valve and an outlet, which realizes the emergency cut-off function of the valve body, and can ensure that the emergency cut-off valve of the road transport liquid dangerous goods vehicle or tank container occurs, and prevents the leakage of dangerous liquid; it is more aimed at The vehicles and tanks in production or in use can replace the bottom unloading ball valve with strong versatility.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

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

Fig. 2 is a schematic diagram of the appearance of the utility model.

In the figure, 1 foot valve, 2 butterfly valve, 3 flange transfer outlet, 4 dust cover, 5 gasket, 6 gasket, 7 connector, 8 opening component, 9 valve stem, 10 valve core, 11 spring, 12 spring pressure plate , 13 spring cages, 14 handles.

Detailed ways

As shown in Figure 1 and Figure 2, a discharge emergency cut-off foot valve, including foot valve 1, butterfly valve 2, flange transfer outlet 3 and dust cover 4, between foot valve 1, butterfly valve 2 and flange transfer outlet 3 Gasket 5 and gasket 6 are respectively arranged between them. The foot valve 1, butterfly valve 2 and flange transfer outlet 3 are connected and fixed through the connecting piece 7. The connecting piece 7 is composed of connecting bolts, spring washers and nuts. 1 is connected with the valve stem 9 of the foot valve, the valve stem 9 is connected with the handle 14 at the end, the valve stem 9 is connected with the valve core 10, the valve core 10 is movably connected in the spring cage 13 of the foot valve 1, the valve core 10 is connected with the The spring 11 is connected, and a spring pressing plate 12 is arranged between the top of the spring 11 and the housing of the foot valve 1 . The foot valve 1 is a 30-degree foot valve, and the flange outlet 3 is a threaded outlet and a quick-connect structure outlet.

The working principle of the utility model: while turning the handle, the opening assembly will rotate, and then push the valve core to rise to the highest point along the spring cage. During this process, the spring will be compressed, and the spring is set at one end to connect with the valve core. One end is connected with the spring pressure plate, turn the handle in the direction of closing the valve, the valve core will be quickly pushed to the sealing state under the action of the spring, in this way, the foot valve is opened or closed. The valve body of the utility model is an emergency cut-off combination valve for unloading. If the part is subjected to a large impact force when an accident occurs, the valve body part will be automatically shortened to release the impact energy to protect the tank body from damage. At the same time, the valve itself The sealing mechanism is not damaged in any way to ensure that the transported goods do not leak and cause safety accidents.

Claims (3)

1. A discharge emergency cut-off foot valve is characterized in that it comprises a foot valve, a butterfly valve, a flange transfer outlet and a dust cover, a gasket is respectively arranged between the foot valve, the butterfly valve and the flange transfer outlet, the foot valve, the butterfly valve and the flange transfer outlet The flange outlet is connected and fixed by a connecting piece. The connecting piece is composed of connecting bolts, spring washers and nuts. The opening component is arranged in the foot valve and connected with the valve stem of the foot valve. The valve stem is connected with the handle at the end, and the valve stem is connected with the valve The spool is connected, and the spool is movably connected in the spring cage of the foot valve, the spool is connected with a spring, and a spring pressing plate is arranged between the spring top and the foot valve housing. 2. The unloading emergency cut-off foot valve according to claim 1, characterized in that the foot valve is a 30-degree foot valve. 3. The unloading emergency cut-off foot valve according to claim 1, characterized in that the flange transfer outlet is a threaded outlet and a quick-connect structure outlet.