CN2660241Y - Temp control valve for heating - Google Patents

Abstract

A thermostat valve for heating has a valve provided with a piston head, a rubber gasket and a piston; a valve rod jacketed with a piston; a plastic cap and a magnetic column arranged in the valve rod; a spring and a magnetic ring jacketed with the valve rod; an internal regulating sleeve jacketed with the magnetic ring; a memory alloy block connected with the magnetic ring. The alloy block is provided with a shape memory alloy spring and the internal regulating sleeve is connected with a regulating jacket outside. The valve comprises two independent parts of a main valve and a temperature control head partially connected through a locking nut; wherein, valve rods are integrated into the main valve and the temperature control head is characterized in that the internal regulating sleeve is fixed in a bottom base, the external screw thread of an external regulating sleeve is connected with the internal screw thread in the bottom base, the upper end of the external regulating sleeve is connected with the inner side of a scale handle, the scale handle is connected with the bottom base in sliding, and the top of the internal regulating sleeve is added with a fine-tuning spring. The utility model solves the problems of inconvenient installation and maintenance and difficult opening of rear valve when the valve automatically shuts down and the indoor temperature decreases, which is applicable to household metering and thermostat controlled heating.

Description

Temp control valve for heating

Technical field

The utility model relates to the valve of regulating heating temperature in a kind of valve, particularly heating system automatically.

Background technique

In the prior art, " heating thermostatic valve " (patent No. is: 012297275; 012600695; Application number 02245750X).Be to use memory alloy as thermosensitive element, its basic principle is: produce deformation when the memory alloy temperature influence, make the permanent magnet rings in the actuator produce displacement, thereby drive piston assembly, the open degree of control valve body has promptly been controlled rate-of flow, reaches the purpose of regulating temperature.But the problem that this valve structurally exists: the one, when pressure medium is greater than 0.3Mpa in system, is near the piston of " shutoff " and is good at being shifted to an earlier date " suction " firmly easily, not only make to open obviously to lag behind, and " antifreeze grade " is with ineffective.Degree of regulation is not enough, valve after reaching setting temperature and automatically shutting down since due to the performance of memory alloy itself and the valve mechanism after the room temperature reduction, the valve opening retardation phenomenon is obvious, the temperature adjustment error is big.The 2nd, thermostat valve has been divided into four parts in the time of need dismantling, and comprises valve body, magnet ring, bias spring, temperature sensing part (containing shell).Part is at random, loses easily.When assembling, magnet ring direction dress easily is anti-, can cause thermostat valve not work again.And maintenance, replacing component difficulty are installed in inconvenience.

Summary of the invention

The utility model provides a kind of Temp control valve for heating, and solution valve regulated precision is not enough, have no progeny in the pass opens the technical problem of insensitive and inconvenient installation and maintenance.

The technological scheme of the utility model Temp control valve for heating: in valve body, be combined with piston head, rubber pad and piston on the valve port, be socketed with valve rod on the piston, valve rod is built-in with the plastic cap that cooperates with piston and the magnetic post above the plastic cap, the magnet ring that valve rod is with spring outward and cooperates with the magnetic post, cover in the outer socket of magnet ring is regulated connects the memory alloy seat on the magnet ring, be with shape memory alloy spring on this seat, the cover outside connects the adjusting overcoat in above-mentioned adjusting, it is characterized in that:

This valve is to be connected by two independent parts splits of main valve body and temperature control head, by locknut the outside thread of temperature control head bottom with main valve body connected together, wherein valve rod and valve body are connected as a single entity becomes the main valve body part, the temperature control head part: cover is fixed in the base in regulating, the memory alloy spring seat is pegged graft with the interior cover of adjusting top, the outside thread of regulating the overcoat bottom is connected with the screw-internal thread fit of base, the upper end of regulating overcoat is connected with scale handle inner face, scale handle lower edge indicates scale, have dial window with respect to the base position, scale handle and base are slidingly connected;

The fine setting spring is set up at the cover top in regulating, and the fine setting spring radially is fixed on by screw bolt and nut and regulates interior cover top.

Beneficial effect: for the valve that overcomes piston structure when hydraulic pressure is big (more than the 0.3Mpa), valve turn-offs easily, opens difficult problem.In thermostat valve, a fine setting spring has been installed, make thermostat valve when automatically shutting down, still keep a trickle flow, unlatching is lagged behind improve.The fine setting spring has anti-" choke-out " function, and the validity of valve opening is improved, and each gear is opened temperature hysteresis all in 2K.Because the lower end of marmem base in temperature control head, the fine setting spring plays adjustment, positioning action, passes through bolt with cover in the adjusting.The fine setting spring is in the scope of automatic temperature-control, thermostat valve can not be turn-offed fully, keep little logical state, can not turn-off fully, reaction fine setting spring always has a power that makes progress, when memory spring begins to shrink, valve can be opened rapidly, temperature lag when opening is obviously reduced, evidence: open temperature hysteresis and preset unlatching temperature≤1K, solved thermostat valve preferably and had no progeny in the pass and open the problem that obviously lags behind in the time of need opening again, thermostat valve is normal manually to be opened or turn-offs but do not influence after the repacking, this part-structure be a common spring housing on an off-gauge hex head bolt, bolt with regulate in cover be connected.

Magnet ring in this valve and spring are fixed on the base by cover in regulating, simultaneously, memory alloy spring seat, shape memory alloy spring, adjusting overcoat are covered in the scale handle, scale handle and base are linked together with catching groove, form an integral body, form a temperature control head, this temperature control head bottom is connected through the valve body of locknut and high in and low out, forms complete thermostat valve.This thermostat valve is made up of temperature control head and two independent sectors of main valve body, is convenient to install, dismantles and maintenance.

This Temp control valve for heating can be allocated thermal resource automatically, improves indoor hot comfort, and energy-saving effect is remarkable.Through the practicality test, valve event is good, and action error is ± 1 ℃, and stable performance is reliable.Be mainly used in heating system and regulate the room temperature, divide family control, household metering.

Description of drawings

Fig. 1 is a vertical section structure schematic representation of the present utility model;

Fig. 2 is a schematic appearance of the present utility model;

Fig. 3 is a worm's eye view of regulating overcoat;

Fig. 4 is a vertical section structure schematic representation of regulating overcoat.

Fig. 5 is that the utility model is decomposed into two-part structural representation.

The 1-valve body, 2-valve rod, 3-locknut, 4-base, 5-scale, 6-regulates overcoat, cover in 7-regulates, and the 8-nut, 9-finely tunes spring, 10-bolt, 11-memory alloy seat, 12-shape memory alloy spring, 13-loam cake, 14-magnetic post, 15-magnet ring, the 16-plastic cap, 17-spring ring, 18-rubber column, 19-spring, 20-V type circle, 21-O type circle, 22-piston, 23-rubber pad, 24-piston head, 25-dial window, the 26-guide chute, 27-catching groove, 28-sawtooth, 29-outside thread, 30-block.

Embodiment

As shown in Figure 1, 2, valve body 1 is threaded with valve rod 2 usefulness, and the joint prevents seepage with 21 sealings of O type circle.Temperature control head is connected with valve rod 2 usefulness locknuts 3.Its trimming part divides used fine setting spring 9 to be located at the top of magnet ring 15, and be enclosed within on the hex head bolt 10, bolt is connected with cover 7 in the adjusting, and locate with nut, cover junction in bolt and adjusting, nut 8 upper ends is left 2mm and is moved up and down the space, and shape memory alloy spring 12 can not turn-off valve at work fully, keep little logical state, easy Open valve during with the assurance cooling.

Spring 19 and magnet ring 15 (noting the magnet ring direction) are placed in the interior cover 7 of adjusting, then cover 7 in regulating is fixed on the base 4, memory alloy seat 11 is installed in the hole of 3 ф 3 that regulate interior cover 7, can slides up and down, shape memory alloy spring 12 is placed in the memory alloy seat 11.Spring ring 17 is installed in to be regulated on the overcoat 6, regulating overcoat 6 and base 4 is connected for multi-thread spiral, regulating overcoat 6 is connected by guide chute 26 with scale handle 5, loam cake 13 is connected on the scale handle 5, scale handle 5 usefulness catching grooves 27 are slidingly connected on the base 4, locknut 3 is installed on the base 4, is used to connect temperature control head and valve body.Magnetic post 14 is installed in the plastic cap 16.V-type circle 20 is installed on the piston 22 with sealing gasket 23, and piston 22 is threaded with piston head 24.Rubber column 18 is placed in the hole of piston 22.Scale handle 5 lower edges indicate a circle scale, have dial window 25 (as shown in Figure 2) with respect to position, base upper edge, and scale can slide in dial window.

The shape of regulating overcoat 6 is shown in Fig. 3,4, there is a spring ring 17 lower edge of regulating overcoat 6, there is a circle sawtooth 28 upper edge of regulating overcoat 6, this sawtooth card is in the axially directed chute 26 of scale handle 5 inner faces, when 5 rotations of scale handle, this sawtooth 28 slides up and down in guide chute 26, drives to regulate overcoat 6, shape memory alloy spring 12 knee-actions.The outside thread 29 of regulating the overcoat bottom is connected with the screw-internal thread fit of base, and it is intracardiac that four blocks 30 are inserted in the shape memory alloy spring 12, the realization radial location.

This thermostat valve is made up of temperature control head and two independent sectors of main valve body, as shown in Figure 5.

Claims (1)

1, a kind of Temp control valve for heating, in valve body, be combined with piston head, rubber pad and piston on the valve port, be socketed with valve rod on the piston, valve rod is built-in with the plastic cap that cooperates with piston and the magnetic post above the plastic cap, the magnet ring that valve rod is with spring outward and cooperates with the magnetic post, cover in the outer socket of magnet ring is regulated, connect the memory alloy seat on the magnet ring, be with shape memory alloy spring on this seat, the cover outside connects the adjusting overcoat in above-mentioned adjusting, it is characterized in that:

This valve is to be connected by two independent parts splits of main valve body and temperature control head, by locknut the outside thread of temperature control head bottom with main valve body connected together, wherein valve rod and valve body are connected as a single entity becomes the main valve body part, the temperature control head part: cover is fixed in the base in regulating, the memory alloy spring seat is pegged graft with the interior cover of adjusting top, the outside thread of regulating the overcoat bottom is connected with the screw-internal thread fit of base, the upper end of regulating overcoat is connected with scale handle inner face, scale handle lower edge indicates scale, have dial window with respect to the base position, scale handle and base are slidingly connected;

The fine setting spring is set up at the cover top in regulating, and the fine setting spring radially is fixed on by screw bolt and nut and regulates interior cover top.

Images