CN202327313U

CN202327313U - Hose clamping electromagnetic valve

Info

Publication number: CN202327313U
Application number: CN2011203903149U
Authority: CN
Inventors: 崔玉峰
Original assignee: SHANGHAI BEION MEDICAL TECHNOLOGY Co Ltd
Current assignee: Shanghai north medicine Polytron Technologies Inc
Priority date: 2011-10-14
Filing date: 2011-10-14
Publication date: 2012-07-11
Anticipated expiration: 2021-10-14

Abstract

The utility model discloses a hose clamping electromagnetic valve for connecting and disconnecting hoses. Connection and disconnection of fluid are controlled by a method of clamping and loosening the hoses, so that the fluid does not flow through the electromagnetic valve and is not polluted. A valve core serving as a fixed armature and a movable armature are arranged in a shell; and the fixed armature is in conical surface contact with the movable armature during attracting. A piston is fastened on the movable armature, the piston and a valve body outside the piston form a chuck, and the valve body is provided with two grooves for holding the hoses; and when the electromagnetic valve is attracted and released, the hose in one groove is clamped, and the hose in the other groove is loosened. The fixed armature and the movable armature are in conical surface contact, and the piston can produce great movement by short distance change between the conical surfaces of the armatures, so the magnetic force conversion efficiency of the electromagnetic valve is high, the attractive force of the armatures is stronger than that of same-diameter planar contact armatures, the hose clamping force is large, and the hose clamping electromagnetic valve has the characteristics of simple structure, low noise, large clamping force and reliability in connection and disconnection of the hoses and is suitable to be applied in the fields of chemical analysis, in vitro diagnosis, water quality analysis, liquid phase analysis, bioengineering and the like.

Description

The clamp solenoid valve

Technical field

The utility model relates to a kind of solenoid valve, relates in particular to a kind of flexible pipe that clamps and unclamp, and makes the clamp solenoid valve of fluid break-make in flexible pipe.

Background technique

At present, when carrying purer fluid with flexible pipe, be the break-make of control fluid, oneself adopts the method that clamps and unclamp flexible pipe, so that fluid needn't be flowed through solenoid valve and polluted; Chinese patent ZL200720190320.3 and ZL201020282530.7 successively disclose a kind of clamp solenoid valve of break-make flexible pipe, all are to utilize moving armature under electromagnetic attraction and spring promotion, to move, and drive the clamping of clamp spare or unclamp flexible pipe.But contacted face all was the plane when these clamp solenoid valves were decided armature and moving armature attraction, and the gap the when stroke of moving armature equals to unclamp between two armature makes the electromagnetic efficiency of these solenoid valves lower, and power consumption is big, and the volume of solenoid valve is big, and break-make throat sound is big.

Summary of the invention

The purpose of the utility model is: provide a kind of electromagnetic efficiency high clamp solenoid valve, and simple in structure tight skilful, the big and can regulate of clamping force, the break-make noise is low, and is easy to use and reliable.

The utility model is achieved in that a kind of clamp solenoid valve, it by valve body. piston, shell, moving armature, snap ring, push rod, spool, coil carrier, adjustment screw, protective ring, power line, spring, pin, locating stud, quiet pad etc. are formed; Install spool in the shell, between shell and the spool coil carrier is housed, coil is arranged and the line of connecting with the mains on the frame; Put by snap ring fixed coil chord position, as push rod, spring and adjustment screw are arranged on the spool endoporus of deciding armature, push rod can move at spool and moving armature two concentric endoporus; Moving armature can move in the enclosure, and piston is fixed on the moving armature, when electromagnetic force is done time spent fixed magnet and moving magnet adhesive; The electromagnetic induction face is a conical surface, and when electromagnetic force disappeared, spring leaves through push rod promotion armature decided the armature spool; Valve body is fixed on the shell, on two flexible pipe mounting grooves are arranged, make it become clamp combination with piston.When electromagnetic force is done the time spent, moving armature and piston move to left together, and left side groove inner flexible tube is clamped on the valve body, and the right groove inner flexible tube unclamps; And electromagnetic force is when disappearing, and spring promotes the push rod push piston to the right, and left groove inner flexible tube is unclamped, and right groove inner flexible tube is clamped.

In the utility model, the internal conical surface of deciding the armature spool contacts when attracting with the circular cone of moving armature dignity, so electromagnetic force is inhaled when putting; Can produce the big stroke of moving armature with the little gap of armature residual gap; The magnetoelectricity conversion efficiency is than higher, and electromagnetic attraction is stronger than the solenoid valve of the plane contact of same diameter, and pressing force of the spring also can be adjusted more greatly; Thereby make clamp force rate same specification clamp solenoid valve big, the break-make flexible pipe is more reliable.

In the utility model, in deciding the armature spool, adjustment screw Regulation spring decrement is arranged, so that the flexible pipe clamping force is suitable, the break-make flexible pipe is more reliable.

In the utility model, the moving armature end face has quiet pad, impact noise when attracting to eliminate armature residual gap.

The beneficial effect of the utility model can improve the electromagnetic efficiency of clamp solenoid valve, makes this clamp solenoid valve bigger than same size solenoid valve electromagnetic force, and the break-make flexible pipe is more reliable, and noise is very low.

Description of drawings

Fig. 1: the utility model is used for the clamp electromagnetic valve structure schematic representation of the two bar flexible pipes of break-make;

Fig. 2: the utility model is used for the clamp electromagnetic valve structure schematic representation of break-make wall scroll flexible pipe.

Embodiment

Mode of execution below in conjunction with accompanying drawing is done further explain to the utility model: shown in Figure 1 is the clamp solenoid valve of first kind of mode of execution, and it comprises valve body 1, piston 2, shell 3, moving armature 4, snap ring 5, push rod 6, spool 7, coil carrier 8, adjustment screw 9, protective ring 10, power line 11, spring 12, pin 13, locating stud 14, quiet pad 15 etc.Install spool 7 in the shell 3, between shell 3 and the spool 7 coil carrier 8 is arranged, frame is provided with coil, and is connected with power line 11.As being provided with push rod 6 and spring 12 in the spool of deciding armature 7, and install through adjustment screw 9 said snap ring 5 fixed coil framves 8 positions.Said push rod 6 can move in the concentric endoporus of spool 7 and moving armature 4, and moving armature 4 can move in shell 3, and piston 2 is fixed on the moving armature 4.Do the time spent when electromagnetic force, decide armature spool 7 and moving armature 4 adhesives, the electromagnetic induction face is a conical surface each other, and when electromagnetic force disappeared, spring 12 promoted push rod 6, and push rod 6 promotion armature 4 leave decides armature spool 7.Valve body 1 is fixed tightly on the shell 3, on two flexible pipe mounting grooves are arranged, make the combination of 2 one-tenth clamps of itself and piston.When electromagnetic force is done the time spent, moving armature 4 moves to left with piston 2 together, and left side groove inner flexible tube is clamped on the valve body 1, and the right groove inner flexible tube unclamps; When electromagnetic force disappeared, spring 12 promoted push rods 6, and push rod 6 promotes pistons 2 and moves to right, and made that left groove inner flexible tube unclamps on the valve body 1, and right groove inner flexible tube clamps, and this mode of execution is suitable for the two flexible pipes of break-make.

The circular cone of said moving armature 4 dignity contacts during with the internal conical surface attraction of decide armature spool 7, when deciding armature spool 7 and moving armature 4 and unclamp, and both perpendicular distances; Be that the gap is very little, much littler than the stroke of moving armature, so its magnetic force conversion efficiency is higher; Electromagnetic attraction is stronger than the solenoid valve of same diameter; The impacting force of spring 12 is also adjustable to be got more greatly, thereby makes clamp force rate same specification clamp solenoid valve big, and the break-make flexible pipe is more reliable.

Saidly decide armature spool 7 endoporus, adjustment screw 9 Regulation springs 12 decrements are arranged, to regulate the flexible pipe clamping force.

Said moving armature 4 end faces have quiet pad 15, impact noise when attracting to eliminate armature residual gap.

Shown in Figure 2 is the clamp solenoid valve of second kind of mode of execution; It is structurally similar with the clamp solenoid valve of first kind of mode of execution, and not existing together is to have only a flexible pipe mounting groove on the valve body 1, and flexible pipe unclamps during magnet attracts; Flexible pipe clamped when magnet unclamped, and was used for break-make wall scroll flexible pipe.

The utility model clamp solenoid valve is not limited to above embodiment, and those skilled in the art make the change of unsubstantiality, all should fall into the protection domain of the utility model.

Claims

1. clamp solenoid valve, it comprises: valve body (1), piston (2), shell (3), moving armature (4), snap ring (5), push rod (6), spool (7), coil carrier (8), adjustment screw (9), spring (12), pin (13), locating stud (14) and quiet pad (15); Install spool (7) in the said shell (3), between shell (3) and the spool (7) coil carrier (8) is arranged, coil is arranged on the frame; Said snap ring (5) fixed coil chord position is put, and said spool (7) endoporus of deciding armature is provided with push rod (6) and spring (12), and adopts adjustment screw (9) to install; Said push rod (6) is in spool (7) and the removable cooperation of moving armature (4) two concentric endoporus, and moving armature (4) removable cooperation in shell (3); Said piston (2) is fixed on the moving armature (4), and valve body (1) is fixed tightly on the shell (3), and said valve body (1) is provided with two flexible pipe mounting grooves, makes it become the clamp combination with piston (2).

2.Clamp solenoid valve according to claim 1; It is characterized in that: the circular cone dignity of moving armature (4) contacts when attracting with the internal conical surface of deciding armature spool (7); Gap when deciding to unclamp between armature spool (7) and the moving armature (4), much littler than the stroke of moving armature (4), so its magnetic force conversion efficiency is higher; Electromagnetic attraction is than strong with the solenoid valve of diametral plane contact; The impacting force of spring (12) also can be adjusted more greatly, thereby makes clamp force rate same specification clamp solenoid valve big, and the break-make flexible pipe is more reliable.

3. clamp solenoid valve according to claim 1 is characterized in that: be provided with the adjustment screw (9) that is used for Regulation spring (12) decrement at spool (7) endoporus.

4. clamp solenoid valve according to claim 1 is characterized in that: the quiet pad (15) that on moving armature (4) end face, is provided with impact noise when eliminating armature attraction.