CN213839665U

CN213839665U - Piston type electronic expansion valve

Info

Publication number: CN213839665U
Application number: CN202022823932.XU
Authority: CN
Inventors: 张少特; 张奇特
Original assignee: Hangzhou Eda Precision Electromechanical Science & Technology Co ltd
Current assignee: Hangzhou Eda Precision Electromechanical Science & Technology Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-07-30
Anticipated expiration: 2030-11-30

Abstract

The utility model discloses a piston electronic expansion valve belongs to solenoid valve technical field. The utility model discloses a disk seat, the second passageway, the third passageway, the sleeve, first passageway and piston rod have on the disk seat, first passageway has the cooperation section, the second passageway communicates in first passageway, the third passageway communicates in first passageway, telescopic one end detachable cooperation is in the cooperation section, the intercommunicating pore of third passageway and first passageway is located the cooperation section, the cooperation of the tip detachable of piston rod is in telescopic end hole, the sleeve is a ladder section of thick bamboo, a ladder section of thick bamboo has thin axle section and thick axle section, thin axle section cooperation is in the cooperation section, the terminal surface of the first passageway of terminal surface laminating of thick axle section. The utility model discloses a circulation that three-way valve was controlled to the adjusting sleeve avoids installing other choke valve on pipe-line system and circulates the restriction.

Description

Piston type electronic expansion valve

Technical Field

The utility model belongs to the technical field of the solenoid valve, especially, relate to a piston electronic expansion valve.

Background

The electronic expansion valve uses the electric signal generated by the regulated parameter to control the voltage or current applied to the expansion valve, so as to achieve the purpose of regulating the liquid supply amount.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a piston electronic expansion valve controls the circulation of three-way valve through adjusting sleeve, avoids installing other choke valve on pipe-line system and circulates the restriction.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a piston type electronic expansion valve, which comprises a valve seat, wherein the valve seat is provided with a first channel and a piston rod, and the first channel is provided with a matching section;

a second channel in communication with the first channel:

the third channel is communicated with the first channel;

one end of the sleeve is detachably matched with the matching section, the communication holes of the third channel and the first channel are located on the matching section, and the end part of the piston rod is detachably matched with the end hole of the sleeve.

Further, the sleeve is a ladder section of thick bamboo, and a ladder section of thick bamboo has thin axle section and thick axle section, and the cooperation of thin axle section is in the cooperation section, the terminal surface laminating first passageway of thick axle section.

Furthermore, the thin shaft section is sleeved with a sealing gasket, and two end faces of the sealing gasket are respectively attached to the end faces of the first channel and the thick shaft section.

Furthermore, a screw hole is formed in the side wall of the end portion of the first channel, a first positioning hole and a second positioning hole corresponding to the screw hole are formed in the thin shaft section, and the thin shaft section is fixed on the first channel through a bolt.

Furthermore, the first channel is in threaded fit with the sleeve, and the end face of the sleeve spindle section, on which the first channel is arranged, is provided with a corresponding screwing notch.

Further, the valve seat is an electronically expandable valve seat body.

The utility model discloses following beneficial effect has:

the utility model controls the circulation of the second channel by adjusting the length of the sleeve installed in the first channel, thereby reducing the flow restriction caused by installing another throttle valve on the pipeline system; the sealing gasket is additionally arranged between the first channel and the sleeve to improve the sealing performance of the device, the end face of the sleeve thin shaft section, provided with the first channel, is provided with a corresponding screw-in nick, and the first positioning hole and the second positioning hole can be aligned to the screw hole after the first positioning hole and the second positioning hole are screwed in for a proper length through the nick.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of an expansion valve;

FIG. 2 is a schematic structural view of the sleeve;

in the drawings, the components represented by the respective reference numerals are listed below:

1-valve seat, 2-piston rod, 3-first channel, 4-second channel, 5-sleeve, 6-sealing gasket, 7-third channel, 501-first positioning hole and 502-second positioning hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1-2, the present invention relates to a piston type electronic expansion valve, which is a two-way valve and a three-way valve convertible piston type electronic expansion valve, and includes a valve seat 1, a first passage 3, a second passage 4, a third passage 7, and a sleeve 5.

The particular valve seat 1 has a first passage 3 and a piston rod 2.

The second channel 4 and the third channel 7 are both arranged on the side surface of the first channel 3 and are communicated with the first channel 3, and the other sleeve 5 is arranged at the port of the first channel 3, namely the sleeve 5, the second channel 4 and the third channel 7 are communicated through the first channel 3.

In particular, the first channel 3 has a mating section, preferably a threaded mating;

one end of the sleeve 5 is detachably matched on the matching section, the third channel 7 and the communication hole of the first channel 3 are positioned on the matching section, and the end part of the piston rod 2 is detachably matched on the end hole of the sleeve 5.

I.e. when the port of the sleeve 5 exceeds the position on the port of the second channel 4, a two-way valve is formed by the third channel 7 and the sleeve 5, and a three-way valve is formed when the port of the sleeve 5 is not in position on the port of the second channel 4.

Preferably, sleeve 5 is a ladder section of thick bamboo, and a ladder section of thick bamboo has thin axle section and thick axle section, and the cooperation of thin axle section is in the cooperation section, the terminal surface laminating first passageway 3's of thick axle section terminal surface.

The thin shaft section is sleeved with a sealing gasket 6, two end faces of the sealing gasket 6 are respectively attached to the end faces of the first channel 3 and the thick shaft section, and the sealing performance of the device is improved by additionally arranging the sealing gasket 6 between the first channel 3 and the sleeve 5.

Wherein, the side wall of the end part of the first channel 3 is provided with a screw hole, the thin shaft section is provided with a first positioning hole 501 and a second positioning hole 502 which correspond to the screw hole, the thin shaft section is fixed on the first channel 3 through a bolt,

if the specific two-way of the expansion valve is determined to be used, the thin shaft section is completely matched in the first channel 3, the second positioning hole 502 at the root of the thin shaft section is aligned with the screw hole on the first channel 3 and can be locked through a bolt, and if the expansion valve is used as a three-way valve, the first positioning hole 501 can be aligned with the screw hole on the first channel 3.

First passageway 3 and sleeve 5 screw-thread fit, the terminal surface that is equipped with first passageway 3 on the tip of sleeve 5 thin axle section has corresponding screw in nick, guarantees through the nick that first locating hole 501 and second locating hole 502 can aim at the screw after the suitable length of screw in.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A piston-type electronic expansion valve, comprising:

the piston rod sealing device comprises a valve seat (1), wherein a first channel (3) and a piston rod (2) are arranged on the valve seat (1), and the first channel (3) is provided with a matching section;

a second channel (4), the second channel (4) being in communication with the first channel (3):

a third channel (7), the third channel (7) being communicated with the first channel (3);

one end of the sleeve (5) is detachably matched with the matching section, the third channel (7) and the communicating hole of the first channel (3) are located on the matching section, and the end of the piston rod (2) is detachably matched with the end hole of the sleeve (5).

2. A piston-type electronic expansion valve as claimed in claim 1, wherein the sleeve (5) is a stepped cylinder having a thin shaft section fitted in the fitting section and a thick shaft section having an end face abutting against the end face of the first passage (3).

3. A piston-type electronic expansion valve as claimed in claim 2, wherein the thin shaft section is fitted with a gasket (6), and both end faces of the gasket (6) are respectively attached to the end faces of the first passage (3) and the thick shaft section.

4. A piston-type electronic expansion valve as claimed in claim 2, wherein the first passage (3) has a screw hole in an end side wall thereof, and the thin shaft section has a first positioning hole (501) and a second positioning hole (502) corresponding to the screw hole, and is fixed to the first passage (3) by means of a bolt.

5. A piston type electronic expansion valve according to claim 4, wherein the first passage (3) and the sleeve (5) are screw-fitted, and the end face of the thin shaft section of the sleeve (5) on which the first passage (3) is provided has a corresponding screw-in notch.

6. A piston-type electronic expansion valve as claimed in any one of claims 1-5, wherein the valve seat (1) is an electronically expandable valve seat body.