CN213900082U

CN213900082U - Intermittent three-way valve with caching function

Info

Publication number: CN213900082U
Application number: CN202022983282.5U
Authority: CN
Inventors: 奚培培
Original assignee: Suzhou Maplestone Machine Co ltd
Current assignee: Suzhou Maplestone Machine Co ltd
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-08-06
Anticipated expiration: 2030-12-11

Abstract

The utility model discloses an intermittent type three-way valve with memory function, including valve main part, valve shaft, valve plate, buffer memory cover, spacing ring, buffer memory pipe, piston, flexible guide post, spring, switch touch pole, touch switch, sealing washer and end cover, be provided with entry, export, buffer memory passageway in the valve main part, the valve shaft slides and seal installation in the valve main part. When the pressure in the pipeline and the valve main body is too large, the liquid overcomes the elasticity of the spring to push the piston to move downwards, meanwhile, the switch touch rod contacts the touch switch to enable the touch switch to act and control the alarm to give an alarm, when the piston continues to move downwards to cross the notch, the liquid in the pipeline and the valve main body flows into the buffer tank through the buffer pipe, the pollution of the liquid to the environment is avoided, meanwhile, the aim of recycling is fulfilled, the valve or the pipeline main body is prevented from being broken due to the too large pressure, and meanwhile, an operator hears the alarm sound to stop the machine.

Description

Intermittent three-way valve with caching function

Technical Field

The utility model belongs to the technical field of the valve, especially, relate to an intermittent type three-way valve with memory function.

Background

Valves are accessories for pipes used to open and close the pipe, control flow direction, regulate and control parameters of the transport medium. According to their function, they can be classified into shut-off valves, check valves, regulating valves, and the like. The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. Valves used in fluid control systems range in variety and size from the simplest shut-off valves to the variety of valves used in extremely complex autonomous systems. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The valves are classified into cast iron valves, cast steel valves, stainless steel valves, chrome molybdenum vanadium steel valves, dual-phase steel valves, plastic valves, nonstandard valves, and the like according to the material. When the valve and the pipeline thereof bear excessive pressure, the valve is easy to break to cause liquid to flow out, and the broken pipeline or valve is troublesome to maintain.

Disclosure of Invention

The utility model discloses the technical problem that will solve is: the intermittent three-way valve with the buffering function can monitor and retain the pressure of a pipeline and can avoid the rupture of the pipeline or a valve caused by overlarge bearing pressure.

In order to solve the technical problems, the invention is realized by the following technical scheme: an intermittent three-way valve with a buffer memory function comprises a valve main body, a valve shaft, a valve plate, a buffer memory sleeve, a limiting ring, a buffer memory pipe, a piston, a telescopic guide post, a spring, a switch touch rod, a touch switch, a sealing ring and an end cover, wherein the valve main body is provided with an inlet, an outlet and a buffer memory channel, the valve shaft is arranged on the valve main body in a sliding and sealing way, the valve plate is fixedly arranged at the lower end of the valve shaft, the inlet and the outlet of the valve main body are hermetically separated by the valve plate, the outer end of the buffer memory channel of the valve main body is provided with a joint with external threads in an extending way, the upper end of the buffer memory sleeve is in threaded sealing way and arranged on the joint, the limiting ring is integrally formed and fixedly arranged on the inner wall of the buffer memory sleeve, the sealing ring is fixedly arranged at the lower end of the joint, the outer surface of the sealing ring is tightly attached to the inner wall of the buffer memory sleeve, and the piston is installed inside the buffer memory sleeve in a sliding and sealing way, one end of the buffer pipe is communicated to the inside of the buffer sleeve, the other end of the buffer pipe is connected to the buffer tank, a notch communicated with the buffer pipe is formed in the inner wall of the buffer sleeve, the end cover is mounted at the lower end of the buffer sleeve in a threaded manner, the two ends of the telescopic guide column are respectively fixedly mounted on the piston and the end cover, the switch touch rod is fixedly mounted at the central position of the lower portion of the piston, the touch switch is fixedly mounted at the central position of the top surface of the end cover, and the touch switch is connected to the alarm through a circuit.

Preferably, the alarm is an audible alarm.

Preferably, the switch touch rod is fixedly installed at the center of the lower part of the piston in a threaded manner.

Preferably, the top of the buffer sleeve is also provided with a positioning bolt in a threaded manner.

Compared with the prior art, the utility model discloses an useful part is: when the pressure in the pipeline and the valve main body is too large, the liquid overcomes the elasticity of the spring to push the piston to move downwards, meanwhile, the switch touch rod contacts the touch switch to enable the touch switch to act and control the alarm to give an alarm, when the piston continues to move downwards to cross the notch, the liquid in the pipeline and the valve main body flows into the buffer tank through the buffer pipe, the pollution of the liquid to the environment is avoided, meanwhile, the aim of recycling is fulfilled, the valve or the pipeline main body is prevented from being broken due to the too large pressure, and meanwhile, an operator hears the alarm sound to stop the machine.

Description of the drawings:

the present invention will be further explained with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of the internal structure of the present invention.

The specific implementation mode is as follows:

the present invention will be described in detail with reference to the following embodiments:

as shown in fig. 1, an intermittent three-way valve with a buffer function comprises a valve body 1, a valve shaft 14, a valve plate 15, a buffer sleeve 2, a limit ring 211, a buffer pipe 23, a piston 3, a telescopic guide post 4, a spring 5, a switch touch rod 6, a touch switch 7, a seal ring 9 and an end cover 10, wherein the valve body 1 is provided with an inlet 11, an outlet 12 and a buffer channel 13, the valve shaft 14 is slidably and hermetically mounted on the valve body 1, the valve plate 15 is fixedly mounted at the lower end of the valve shaft 14, the valve plate 15 hermetically separates the inlet 11 from the outlet 12 of the valve body 1, the outer end of the buffer channel 13 of the valve body 1 is provided with a joint with external threads in an extending manner, the upper end of the buffer sleeve 2 is hermetically mounted on the joint in a screw joint manner, the limit ring 21 is integrally formed and fixedly arranged on the inner wall of the buffer sleeve 2, the seal ring 9 is fixedly mounted at the lower end of the joint, the outer surface of the sealing ring 9 is tightly attached to the inner wall of the buffer storage sleeve 2, the piston 3 is arranged in the buffer storage sleeve 2 in a sliding and sealing mode, one end of the buffer pipe 23 is communicated to the inside of the buffer sleeve 2, the other end of the buffer pipe 23 is connected to the buffer tank, the inner wall of the buffer sleeve 2 is provided with a notch 22 communicated with a buffer pipe 23, the notch 22 with a smooth surface can avoid scratching the piston 3, the end cover 10 is screwed on the lower end of the buffer storage sleeve 2, two ends of the telescopic guide post 4 are respectively and fixedly arranged on the piston 3 and the end cover 10, the switch touch rod 6 is fixedly arranged at the central position of the lower part of the piston 3, the switch touch rod 6 is arranged into an elastic telescopic rod structure, so as to avoid crushing the touch switch 7 due to overlarge stroke, the touch switch 7 is fixedly arranged at the center of the top surface of the end cover 10, and the touch switch 7 is electrically connected to the alarm. The alarm is set as a sound alarm.

Switch touch pole 6 spiro union fixed mounting is in 3 lower parts central point departments of piston, through screw thread rotary switch touch pole 6, and adjustable switch touch pole 6's touching stroke.

The top of buffer memory cover 2 is still the spiro union install positioning bolt 8, rotates positioning bolt 8, supports its upper end at valve main part 1 and can prevent that buffer memory cover 2 from taking place to rotate in the use.

When the pressure in the pipeline and the valve main body 1 is too large, the liquid overcomes the elasticity of the spring 5 to push the piston 3 to move downwards, meanwhile, the switch touch rod 6 contacts the touch switch 7 to make the touch switch generate action and control the alarm to give an alarm, when the piston 3 continues to move downwards to cross the notch 22, the liquid in the pipeline and the valve main body 1 flows into the buffer tank through the buffer pipe 23, the pollution of the liquid to the environment is avoided, meanwhile, the aim of recycling is achieved, the valve or the pipeline main body is prevented from being broken due to the too large pressure, and meanwhile, an operator hears the alarm sound to stop the machine.

It is to be emphasized that: it is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The utility model provides an intermittent type three-way valve with buffer memory function which characterized in that: comprises a valve main body (1), a valve shaft (14), a valve plate (15), a buffer storage sleeve (2), a limiting ring (21), a buffer storage pipe (23), a piston (3), a telescopic guide post (4), a spring (5), a switch touch rod (6), a touch switch (7), a sealing ring (9) and an end cover (10), wherein the valve main body (1) is provided with an inlet (11), an outlet (12) and a buffer storage channel (13), the valve shaft (14) is slidably and hermetically mounted on the valve main body (1), the valve plate (15) is fixedly mounted at the lower end of the valve shaft (14), the valve plate (15) hermetically separates the inlet (11) and the outlet (12) of the valve main body (1), the outer end of the buffer storage channel (13) of the valve main body (1) extends to be provided with a joint with external threads, the upper end of the buffer storage sleeve (2) is hermetically mounted on the joint in a screwed manner, the limiting ring (21) is integrally molded and fixedly arranged on the inner wall of the buffer storage sleeve (2), the sealing ring (9) is fixedly arranged at the lower end of the joint, the outer surface of the sealing ring (9) is tightly attached to the inner wall of the buffer sleeve (2), the piston (3) is arranged inside the buffer sleeve (2) in a sliding and sealing way, one end of the buffer pipe (23) is communicated to the inside of the buffer sleeve (2), the other end of the buffer pipe (23) is connected to the buffer tank, a notch (22) communicated with the buffer pipe (23) is arranged on the inner wall of the buffer sleeve (2), the end cover (10) is screwed on the lower end of the buffer storage sleeve (2), the two ends of the telescopic guide post (4) are respectively and fixedly arranged on the piston (3) and the end cover (10), the switch touch rod (6) is fixedly arranged at the central position of the lower part of the piston (3), touch switch (7) fixed mounting is in the top surface central point department of end cover (10), touch switch (7) circuit connection to alarm.

2. An intermittent three-way valve with a buffering function according to claim 1, characterized in that: the alarm is set as a sound alarm.

3. An intermittent three-way valve with a buffering function according to claim 1, characterized in that: the switch touch rod (6) is fixedly arranged at the center of the lower part of the piston (3) in a threaded manner.

4. An intermittent three-way valve with a buffering function according to claim 1, characterized in that: and the top of the buffer memory sleeve (2) is also provided with a positioning bolt (8) in a threaded manner.