CN104879525B - Electric reverse three-channel fluid valve - Google Patents

Abstract

The invention discloses an electric reverse three-channel fluid valve, and belongs to the technical field of analytical chemical apparatuses and instruments. The electric reverse three-channel fluid valve is characterized in that a cylindrical valve seat is connected with a motor shell, a strip-shaped groove is formed in one end of a rotor core, a rotor core rod is arranged at the other end of the rotor core, a limiting ring is arranged in the middle of the rotor core, and an axial rack is arranged on the other side of the limiting ring; the strip-shaped groove of the rotor core is mounted on a lug of a motor shaft, and a right pressure bearing and a right spring are arranged on the right side of the limiting ring; a torque pin hole is radially formed in the right end of a valve spool, three equal fluid flow channel grooves are formed in the circumference of a ring at the right end of the valve spool, a torque pin penetrates the torque pin hole in the end of the valve spool, and the valve spool is connected with the rotor core by a pin hole in the rotor core; a valve sleeves the outer side of the valve spool, nine liquor holes are uniformly formed in the same circumference of the valve, are divided into three groups and are matched with the fluid flow channel grooves, the middle liquor hole of each group of liquor holes is a fluid inlet hole, the other two holes of each group of liquor holes are fluid outlet holes, and the fluid inlet hole of each group of liquor holes constantly keeps being communicated with one of the other two liquor holes of the group of liquor holes when the corresponding fluid flow channel groove angularly rotates.

Description

Electronic break-in triple channel fluid valve

Technical field

The present invention relates to a kind of electronic break-in triple channel fluid valve, belongs to analytical chemistry instrument technique with the apparatus field.

Background technology

At present, known solution controlling switch has non-return valve, electromagnetic valve and sequencing valve.Non-return valve voltage endurance capability is poor, sealing It is not tight.Electromagnetic valve will power for a long time in use, cause heating to cause break-make sebific duct to follow the string, and lose solution break-make control Function processed.Popular sequencing valve adopts planar design, takes up room greatly for valve body during multi-way contral, jackscrew derived from solution Space is excessive.

The content of the invention

In order to overcome above-mentioned technical deficiency, the present invention to provide a kind of electronic break-in triple channel fluid valve, the electronic change Effectively solve that existing each valve is poorly sealed, sebific duct elasticity loss blocking liquid passes through and valve volume to triple channel fluid valve Big problem, solution break-in is quick and easy.

The technical solution adopted for the present invention to solve the technical problems is：The structure of electric three passes road fluid valve is：Support Upper end is equipped with motor, and motor side is provided with motor shaft, the cylinder of the motor housing bolt connection with centre bore of motor shaft side Shape valve seat, the termination of rotor core one is provided with bar-shaped trough, and the other end is provided with rotor core bar, and centre is provided with spacing ring, spacing ring opposite side Axial tooth bar is provided with, tooth bar intermediate radial is provided with pin-and-hole；The bar-shaped trough of rotor core is arranged on the projection of motor shaft, and spacing ring is right Side is equipped with right pressure bearing, right spring；Valve element is arranged on rotor core bar, and valve element right-hand member is radially provided with torque pin-and-hole, left end ring It is provided with three flow channel for liquids grooves of equalization garden week, torque pin is penetrated and by the pin on rotor core by the torque pin-and-hole of valve element one end Hole is connected valve element with rotor core；Valve element left side is installed successively by left pressure bearing, left spring；Valve body is enclosed within valve element outside, valve body Three groups of nine solution holes are laid with same circumference, solution hole site matches with flow channel for liquids groove, and every group of solution hole is wherein Intermediate solution hole is set to inlet opening, remaining holes be liquid outlet, remain during flow channel for liquids groove rotational angle inlet opening and its A solution hole in his holes communicates；The length of the flow channel for liquids groove is the distance in two neighboring solution hole；Valve seat, valve Lid, adapter sleeve and valve body are by the interspersed positioning of alignment pin, the adapter sleeve and valve body of valve gap left end, by bolt in valve gap right-hand member through company Female connector is fastened on valve body, valve gap and valve seat bolt connection；The valve body is by polyether-ether-ketone（PEEK）Low-friction coefficient acid and alkali-resistance Material hard material is made, and the valve element is politef（F4）Low-friction coefficient acid and alkali-resistance material soft material is made.

The invention has the beneficial effects as follows：Solution is derived using the face of cylinder, using butterfly spring and pressure bearing to rotor Pressure holding rotor diameter during life-time service that left side produces is constant, and root diameter remains unchanged for a long period of time, Jing short-period useds Sealing effectiveness is more preferable after break-in.Butterfly spring and pressure bearing are more than in its left side generation in the pressure that rotor right side produces Pressure, rotor fixes in axial location, keeps radial motion.Nine solution holes of three switches take on same circumference Space is little, and stator rotates 30 degree and is capable of achieving solution commutation.

Description of the drawings

With reference to the accompanying drawings and detailed description the present invention is further described.

Fig. 1 is a kind of electronic break-in triple channel fluid valve structure decomposition figure of the present invention.

Fig. 2 is a kind of electronic break-in triple channel fluid valve appearance schematic diagram of the present invention.

1, support in figure, 2, motor, 3, motor shaft, 4, valve seat, 5, valve gap, 6, alignment pin, 7, adapter sleeve, 8, right spring, 9th, right pressure bearing, 10, rotor core, 11, pin-and-hole, 12, rotor core bar, 13, valve element, 14, flow channel for liquids groove, 15, valve body, 16, Torque pin, 17, left pressure bearing, 18, left spring, 19, solution hole.

Specific embodiment

As Figure 1-Figure 2, the structure of electronic break-in triple channel fluid valve is：The upper end of support 1 is equipped with motor 2, motor 2 one Side is provided with motor shaft 3, the housing bolts of motor 2 cylindrical valve seat 4 of the connection with centre bore of the side of motor shaft 3, rotor core 10 One termination is provided with bar-shaped trough, and the other end is provided with rotor core bar 12, and centre is provided with spacing ring, and spacing ring opposite side is provided with axial tooth Bar, tooth bar intermediate radial is provided with pin-and-hole 11；The bar-shaped trough of rotor core 10 is arranged on the projection of motor shaft 3, spacing ring right side peace There are right pressure bearing 9, right spring 8；Valve element 13 is arranged on rotor core bar 12, and the right-hand member of valve element 13 is radially provided with torque pin-and-hole, left It is provided with three flow channel for liquids grooves 14 of equalization end ring garden week, torque pin 16 is penetrated and by turning by the torque pin-and-hole of the one end of valve element 13 Pin-and-hole 11 on sub- core 10 is connected valve element 13 with rotor core 10；The left side of valve element 13 is installed successively by left pressure bearing 17, left spring 18；Valve body 15 is enclosed within the outside of valve element 13, and three groups of nine solution holes 19, the position of solution hole 19 are laid with the same circumference of valve body 15 Match with flow channel for liquids groove 14, every group of solution hole 19 wherein intermediate solution hole 19 is set to inlet opening, remaining holes is liquid outlet, Remain that inlet opening is communicated with a solution hole 19 in other holes during flow channel for liquids 14 rotational angle of groove；The liquid flow The length of road groove 14 is the distance in two neighboring solution hole 19；Valve seat 4, valve gap 5, adapter sleeve 7 and valve body 15 are interted by alignment pin 6 Positioning, the adapter sleeve 7 and valve body 15 of the left end of valve gap 5 are fastened on valve body 15, valve in the right-hand member of valve gap 5 by bolt through adapter sleeve 4 Lid 5 and the bolt connection of valve seat 4；The valve body 15 is by polyether-ether-ketone（PEEK）The acidproof base material hard material system of low-friction coefficient Into the valve element 13 is politef（F4）Low-friction coefficient acid and alkali-resistance material soft material is made.

The spring is butterfly spring, and spring and pressure bearing produce pressure holding valve core long-term to the both ends of the surface of valve element Diameter is constant during use, and the tight friction fit between valve body.

When using, the startup rotation 30-degree angle of motor 2, the rotor driven core of motor shaft 3, valve element concomitant rotation, liquid is by every Feed tube in the middle of group is flowed out into flow channel for liquids groove by one of drain pipe, and motor rotates backward 30 degree of valve core rotations Feed tube and another drain pipe UNICOM, liquid are gone out by the pipe flow.

Claims (1)

1. a kind of electronic break-in triple channel fluid valve, support（1）Upper end is equipped with motor（2）, it is characterised in that：Motor（2）Side It is provided with motor shaft（3）, motor shaft（3）The motor of side（2）Housing bolts cylindrical valve seat of the connection with centre bore（4）, turn Sub- core（10）One termination is provided with bar-shaped trough, and the other end is provided with rotor core bar（12）, centre is provided with spacing ring, and spacing ring opposite side sets There is axial tooth bar, tooth bar intermediate radial is provided with pin-and-hole（11）；Rotor core（10）Bar-shaped trough be arranged on motor shaft（3）Projection On, spacing ring right side is equipped with right pressure bearing（9）, right spring（8）；Valve element（13）Installed in rotor core bar（12）On, valve element （13）Right-hand member is radially provided with torque pin-and-hole, and left end ring circumference is provided with three flow channel for liquids grooves of equalization（14）, torque pin（16）By Valve element（13）The torque pin-and-hole of one end is penetrated and by rotor core（10）On pin-and-hole（11）By valve element（13）With rotor core（10） Connection；Valve element（13）Left side is installed successively by left pressure bearing（17）, left spring（18）；Valve body（15）It is enclosed within valve element（13）Outside, Valve body（15）Three groups of nine solution holes are laid with same circumference（19）, solution hole（19）Position and flow channel for liquids groove（14）Phase It is supporting, every group of solution hole（19）Wherein intermediate solution hole（19）Be set to inlet opening, remaining holes be liquid outlet, flow channel for liquids groove （14）Inlet opening and a solution hole in other holes are remained during rotational angle（19）Communicate；The flow channel for liquids groove （14）Length be two neighboring solution hole（19）Distance；Valve seat（4）, valve gap（5）, adapter sleeve（7）And valve body（15）By fixed Position pin（6）Interspersed positioning, valve gap（5）The adapter sleeve of left end（7）And valve body（15）, by bolt in valve gap（5）Right-hand member is through connection Set（7）It is fastened on valve body（15）On, valve gap（5）With valve seat（4）Bolt connection；The valve body（15）By polyether-ether-ketone（PEEK）It is low The acidproof base material hard material of coefficient of friction is made, the valve element（13）For politef（F4）Low-friction coefficient acid and alkali-resistance material Material soft material is made.