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Pressure switch suitable for pump

A technology of pressure switch and switch seat, which is applied to components, pumps, and pump control of elastic fluid pumping devices. It can solve the problems of water pump control failure, pressure switch start-up damage, and the switch is easily blocked by impurities. The effect of improving the accuracy of the machining contact surface, improving the machining efficiency, and avoiding frequent movements

Inactive Publication Date: 2018-12-21
SHIMGE PUMP IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The pressure switch value needs to be adjusted according to the working conditions
[0005] 2. The pressure switch is frequently started and damaged due to water pressure fluctuations
[0006] 3. The switch is easily blocked by impurities, causing the pump control to fail

Method used

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  • Pressure switch suitable for pump
  • Pressure switch suitable for pump
  • Pressure switch suitable for pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0038] Example: such as Figure 1-7 shown, pressure switches suitable for pumps, including:

[0039] Check valve: including a valve seat 1 and a valve core, the valve seat is provided with a valve seat water inlet 11, a valve seat water outlet 12 and an external pressure taking port 13, and the valve seat is provided with a check channel and a discharge channel 15 , the valve seat water inlet 11 and the valve seat water outlet 12 are respectively located at both ends of the check channel, the valve core is arranged on the check channel 14, and the check channel includes a water inlet section 14- 1 and check section 14-2, the valve core body on the spool is located between the water inlet section and the check section, the water inlet end of the discharge channel is connected with the water inlet section, and the outer intake The pressure port is in communication with the water inlet section, and the water outlet end of the discharge channel 15 is in communication with the non...

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Abstract

The invention relates to a pressure switch suitable for a pump, and solves the problems caused by frequent start of a pressure switch in the prior art. According to the scheme, the pressure switch comprises a check valve and a switch body, wherein an outer pressure taking port is arranged on a valve base, a non-return passage and a drainage passage are arranged in the valve base, wherein the non-return passage comprises a water inlet section and a non-return section, and the water inlet end of the drainage passage communicates with the water inlet section, the outer pressure taking port communicates with the water inlet section, and the water outlet end of the drainage passage communicates with the non-return section; and an inner pressure taking port arranged on the switch body cooperateswith a detection passage, an outer pressure taking end of a detection assembly cooperates with the outer pressure taking port, the inner end of a sealing assembly of the inner pressure taking port cooperates with the inner pressure taking port, and the outer end cooperates with the outer pressure taking port. The pressure switch has the effects that under a working condition of impurities containing silt, the problem of failure of automatic control of the water pump can be effectively solved, a user can be prevented from debugging a pressure switch value, the user can conveniently use the pressure switch, and frequent actions of the switch can be avoided.

Description

technical field [0001] The invention relates to a pressure switch suitable for pumps. Background technique [0002] The water pumps in the existing market are all equipped with pressure switches, and the pressure switches are arranged at the water outlet of the pump, and the switch is controlled to turn on and off the power through the change of water pressure to realize the automatic start and stop of the pump. When the water pump is used in a working condition where the inlet pressure is unstable, the inlet pressure fluctuation will cause the pressure of the water pump to change, which in turn will cause the outlet water pressure to be unstable, causing the pressure switch to start and stop frequently. Usually, the user needs to adjust the start-stop value of the pressure switch to adjust to adapt to the water pressure of different working conditions, which brings certain inconvenience to the user. When the water pressure is unstable and the pressure switch operates frequ...

Claims

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Application Information

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IPC IPC(8): F04D15/02F04D15/00F04D29/00F04D29/70
CPCF04D15/0088F04D15/00F04D15/0022F04D15/02F04D29/007F04D29/708
Inventor 任兵王师毛宁来李云
Owner SHIMGE PUMP IND GRP CO LTD
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