Check valve with safety valve

A check valve and safety valve technology, applied in the field of check valve with safety valve, can solve the problems of lifting, affecting the arrangement of other pipe fittings, difficulty in implementation, etc., and achieve the effect of not easy to block

Inactive Publication Date: 2011-12-21
QINGDAO JINHUANGHAI CONTAINER
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to release the external factors that may increase the pressure in the suction pipe of the oil pump, it is necessary to install a saf

Method used

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  • Check valve with safety valve
  • Check valve with safety valve

Examples

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Example Embodiment

[0012] figure 1 Among them, the check valve with safety valve has a check valve body 2 with an outflow flange 1, an inflow flange 16 and a check valve core 18. The outflow flange 1 is connected to the suction pipe of an oil pump with bolts. The downstream pipes are connected, the check valve seat 11 is fixed on the inflow flange 16 by bolts 15, and the inflow flange seal 10 seals the check valve body 2 and the check valve seat 11. The valve stem sleeve 4 is embedded in the check valve core 18 in the center of the check valve body 2, and the valve disc 13 and the valve stem 9 are connected together, and move as the valve stem 9 slides in the valve stem sleeve 5. 13 Slide along the center line of the valve body 2 to complete the opening and closing action.

[0013] Inside the valve stem 9 of the check valve, there is a safety valve composed of a safety valve seat 6, a steel ball 7, and a safety valve spring 8. The safety valve passes through one end of the valve stem 9 and commun...

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Abstract

The check valve with safety valve is a kind of check valve installed at the lower end of the suction pipe of the oil pump, which can make the oil suction pipeline of the oil pump safer. The check valve with safety valve includes a check valve body 2, an outflow end flange 1, an inflow end flange 16, a check valve seat 11, bolts 15, an inflow end flange seal 10, an outflow end inner cavity 17. Rib plate 3, check valve core 18, valve stem cover 5, valve disc 13, valve stem 9, check valve spring 4, characterized in that the valve stem 9 of the check valve is equipped with a safety valve seat 6 , the safety valve that steel ball 7 and safety valve spring 8 form. The advantage is that the safety valve is far away from the inflow end and is not easy to be blocked; the safety valve is installed in the valve stem 9, which does not affect the flow of fluid in the check valve; does not affect the arrangement of other pipe fittings; the suction pipe of the oil pump, that is, the same as the check valve The pipe fittings connected to the outflow end are equipped with a safety valve as a guarantee. It can be popularized and applied in the check valve structure.

Description

technical field [0001] The invention relates to a check valve installed at the lower end of an oil pump suction pipe, which can make the oil suction pipeline of the oil pump safer, in particular to a check valve with a safety valve. Background technique [0002] When the oil pump is stopped, the check valve installed at the lower end of the oil pump suction pipe can seal the oil in the oil pump suction pipe, so that the oil can be introduced into the oil pump when the oil pump is started next time. Generally, the check valve does not have a safety valve. In order to release the external factors that may increase the pressure in the suction pipe of the oil pump, it is necessary to install a safety valve on the outer wall of the suction pipe, but this will affect the arrangement of other pipe fittings, and it is difficult to implement. Contents of the invention [0003] The object of the present invention is to overcome the shortcoming in the above-mentioned technology, pr...

Claims

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Application Information

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IPC IPC(8): F16K15/18F16K15/06F16K17/04
Inventor 金继华
Owner QINGDAO JINHUANGHAI CONTAINER
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