CN201963995U - Low temperature normal-open electromagnetic exchange valve - Google Patents

Abstract

The utility model relates to a low temperature normal-open electromagnetic exchange valve, belongs to the technical field of an electromagnetic valve, and is characterized by comprising a base, a spring, a lower rubber module, a fixing iron core, an ejector rod, an electromagnetic coil, a valve port, an upper rubber module and a pin. The fixing iron core is arranged on the base, a movable iron core is arranged on the upper portion, the valve port is arranged on the top, and the electromagnetic coil is arranged outside the movable iron core. The lower rubber module is integrally connected with a lower end of the ejector rod, the upper rubber module is integrally connected with the movable iron core through the pin, a lower end of the upper rubber module is connected with the spring which is connected with an upper end of the ejector rod, the upper rubber module, the spring and the ejector rod are arranged inside the a movable iron core chamber, and the ejector rod penetrates through the fixing iron core and is installed oppositely to a valve stem of a convex plate port arranged inside the base. The low temperature normal-open electromagnetic exchange valve has the advantages of being reliable in sealing, resistant to low temperature, waterproof, low in power consumption, excellent in applicability, low in cost, long in service life and safe in automobile driving.

Description

A kind of low temperature normal open solenoid directional control valve

Technical field

The utility model belongs to the solenoid valve technical field, particularly relates to a kind of low temperature normal open solenoid directional control valve.

Background technique

At present, wheeled vehicle brake system and tire fill, the blow-off system solenoid directional control valve mostly is slide-valve structure, and electricity consumption magneto drive moving core drives guiding valve and moves, sealing or connection air flue.Guiding valve and valve are all made with metal; surface of contact is to be rigidly connected; latus rectum is little, weight and volume is big; machining accuracy and degree of finish for spool require high; be easier to wearing and tearing and cause bad sealing; because of expanding with heat and contract with cold, regular meeting is stuck during low-temperature working, therefore is not suitable for using at low temperature and the big occasion of difference variation.Foreign matters such as open air vent is very easily intake, dust influence the proper functioning of spool, and these deficiencies all can be brought unsafe factor to vehicle driving.Power consumption is big in addition, and the supply voltage scope that is suitable for is less, and general only the permission used in the scope of rating value ± 10%.

Because the latus rectum of general solenoid directional control valve is little, throughput is low, must be equipped with relay valve etc. and be used in combination, and the pipeline that has increased the air inlet/outlet between the two connects, and the hidden danger of gas leakage is increased, and it is bigger to take up room.

Summary of the invention

The utility model provides a kind of low temperature normal open solenoid directional control valve for solving the problem that prior art exists.

The purpose of this utility model provides a kind of wheel military vehicle and civilian off road wheeled vehicle brake system and tire fills, blow-off system low temperature normal open solenoid directional control valve, and with the break-make of the flexible method control air flue that contacts, sealability is good, and is not easy to wear.As long as the rubber module is intact, just can not cause gas leakage, make between the solenoid valve inlet, outlet by very reliable.Even under-43 ℃ even lower ambient temperature, or use under the big occasion of difference variation, mechanism can be not stuck yet, and spool work is flexible.

The utility model low temperature normal open solenoid directional control valve adopts following technological scheme:

A kind of low temperature normal open solenoid directional control valve is characterized in: solenoid directional control valve comprises base, spring, following rubber module, fixed iron core, push rod, electromagnetic coil, valve nozzle, goes up rubber module, pin; Base is equipped with fixed iron core, and moving core is arranged at top, and there is valve nozzle on the top, and electromagnetic coil is equipped with in the moving core outside; The lower end of following rubber module and push rod links into an integrated entity, pin will be gone up the rubber module and moving core links into an integrated entity, the lower end of last rubber module is connected with spring, spring is connected with the upper end of push rod, last rubber module, spring and push rod are contained in the moving core inner chamber, push rod passes fixed iron core, and with relative installation of boss port valve cock of base inside.

The utility model low temperature normal open solenoid directional control valve can also be taked following technical measures:

Described low temperature normal open solenoid directional control valve is characterized in: the moving core outside is provided with sleeve.

Described low temperature normal open solenoid directional control valve is characterized in: the outer inner room of base and fixed iron core is equipped with seal ring.

Described low temperature normal open solenoid directional control valve, be characterized in: air inlet/outlet is equipped with the protection bolt.

Advantage that the utlity model has and good effect:

Low temperature normal open solenoid directional control valve, owing to adopted the utility model brand-new technology scheme, compared with prior art, the technical program electromagnetic coil adopts the good resin-cast moulding of electrical insulation capability, the high-quality surface anticorrosion of component is handled, and the rubber cap of air vent design, prevent that effectively foreign matters such as dust, foreign material, water from entering valve inner, make product have waterproof and dustproof, antirust function, and operating current is little, low in energy consumption, big (voltage rating is DC24V, allows wave range 20V～30V) to the Applicable scope of voltage.The big latus rectum design of air valve simultaneously, specification is many, and applicability is good.

Low temperature normal open solenoid directional control valve, make that brake and drive system for vehicle with tow and tire fill, blow-off system simple to operation, the air valve latus rectum is big, specification is many, applicability is good, can directly substitute the composite control of solenoid directional control valve and relay valve.

Adopted flexible sealing structure, make between the solenoid valve inlet, outlet by the reliability height, low temperature resistant, broad application temperature range has reduced the difficulty of processing and the cost of spool, long service life, vehicle driving is safer.

Adopted on the base design of two mounting holes and air inlet intercommunicating pore, can realize that a plurality of solenoid valves combinations install and use, and only need connect air inlet pipeline just can proper functioning, be very easy to the user.

Adopt the rubber cap design of air vent, prevented that effectively foreign matters such as dust, foreign material, water from entering valve inner, effectively improved waterproof and dustproof, antirust ability.

Description of drawings

Fig. 1 is the utility model structural representation.

Among the figure, the 1-base; 2-spring II; Rubber module under the 3-; The 4-fixed iron core; The 5-push rod; The 6-electromagnetic coil; The 7-upper cap nut; The 8-rubber cap; The 9-valve nozzle; The last rubber module of 10-; The 11-pin; The 12-moving core; The 13-sleeve; 14-spring I; The 15-seal ring; 16-protects bolt.

Embodiment

For further understanding technology contents of the present utility model, characteristics and effect, enumerate following example now, and conjunction with figs. is described in detail as follows:

With reference to accompanying drawing 1.

Embodiment 1

A kind of wheel military vehicle and civilian off road wheeled vehicle brake system and tire fills, the series of the DCF-B in blow-off system low temperature normal open solenoid directional control valve comprise: base 1, spring II 2, down rubber module 3, fixed iron core 4, push rod 5, electromagnetic coil 6, upper cap nut 7, rubber cap 8, valve nozzle 9, go up rubber module 10, pin 11; Moving core 12, sleeve 13, spring I 14, seal ring 15, protection bolt 16 etc.Following rubber module 3 links into an integrated entity with the lower end of push rod 5, pin 11 will be gone up rubber module 10 and link into an integrated entity with moving core 12, the lower end of last rubber module 10 is connected with spring I 14, spring I 14 is connected with the upper end of push rod 5, last rubber module 10, spring I 14 and push rod 5 moving core 12 inner chambers of packing into, push rod 5 passes fixed iron core 4, and keeps certain distance with the boss port (valve cock) of base 1 inside.

When not switching on, last rubber module 10 contacts with the boss port (valve cock) of valve nozzle 9 in being fixed on sleeve 13, and cuts off 2. and 3. mouthful air flue, at this moment, 1. communicates with 2. mouthful air flue; During energising, the pressure that moving core 12 overcomes spring II 2 under the electromagnetic force effect moves downward, the following rubber module 3 that links into an integrated entity up to push rod 5 lower ends contacts with the boss port (valve cock) of base 1 inside, and cut off 1. and 2. mouthful air flue, the precompression of the moving core parts inner spring I 14 that structure is special is assurances of reliable closed base 1 inner convex platform port, at this moment, 2. communicate, thereby realized control or commutation air flue with 3. mouthful air flue.

The innovative point of moving core Component Design is: push rod 5 heads contact with flexibility between the base 1 boss port (valve cock).Moving core 12 structures are special, when solenoid valve energising adhesive, be installed in the reaction force of spring I 14 generations of moving core 12 inner chambers, will descend rubber module 3 to be pressed on the base 1 boss port (valve cock), thereby realized the purpose of sealing gas circuit reliably.

The design of two mounting holes and air inlet intercommunicating pore on the base 1 can realize that a plurality of solenoid valves combinations install and use, and only need connect an air inlet pipeline just can proper functioning, be very easy to the user.

The main performance index of present embodiment:

Air valve latus rectum: the solenoid directional control valve that can make φ 2.2 mm～φ 8 mm plurality of specifications latus rectums;

1.-2. disconnected during energising, 2.-3. logical;

1.-2. logical during outage, 2.-3. disconnected.

Claims (4)

1. low temperature normal open solenoid directional control valve is characterized in that: solenoid directional control valve comprise base, spring, down rubber module, fixed iron core, push rod, electromagnetic coil, valve nozzle, go up rubber module, pin; Base is equipped with fixed iron core, and moving core is arranged at top, and there is valve nozzle on the top, and electromagnetic coil is equipped with in the moving core outside; The lower end of following rubber module and push rod links into an integrated entity, pin will be gone up the rubber module and moving core links into an integrated entity, the lower end of last rubber module is connected with spring, spring is connected with the upper end of push rod, last rubber module, spring and push rod are contained in the moving core inner chamber, push rod passes fixed iron core, and with relative installation of boss port valve cock of base inside.

2. according to the described low temperature normal open of claim 1 solenoid directional control valve, it is characterized in that: the moving core outside is provided with sleeve.

3. according to the described low temperature normal open of claim 1 solenoid directional control valve, it is characterized in that: the outer inner room of base and fixed iron core is equipped with seal ring.

4. according to the described low temperature normal open of claim 1 solenoid directional control valve, it is characterized in that: air inlet/outlet is equipped with the protection bolt.