CN202171005U

CN202171005U - Thermostatic valve

Info

Publication number: CN202171005U
Application number: CN2011201884618U
Authority: CN
Inventors: 袁崇静
Original assignee: Hangzhou Sanhua Research Institute Co Ltd
Current assignee: Sanhua Holding Group Co Ltd
Priority date: 2011-05-30
Filing date: 2011-05-30
Publication date: 2012-03-21
Anticipated expiration: 2021-05-30

Abstract

The utility model relates to a thermostatic valve which comprises a valve seat and a valve core component, wherein the valve core component comprises a valve core fixedly arranged on the valve seat; the valve core is a cylinder-shaped part provided with openings at the two ends; the opening arranged at the lower end of the valve core comprises a second valve rod hole; the valve core component further comprises a valve rod passing through a first valve rod hole and the second valve rod hole; the bottom of the valve core is provided with a step hole; the step hole comprises the second valve rod hole and a second opening part which are sequentially arranged from top to bottom, and the inner diameter of the second opening part is larger than that of the second valve rod hole; a first sealing ring and a first baffle piece which are sequentially sheathed from top to bottom is arranged at the part of the valve rod positioned in the second opening part; the first baffle piece is fixedly arranged in the valve core; and the first sealing ring is in a state of compression. The thermostatic valve is good in sealing effect, convenient to process, simple in structure and convenient to install.

Description

A kind of thermostatic valve

Technical field

The utility model relates to the heating technical field of valve control, relates to a kind of thermostatic valve specifically.

Background technique

Traditional used thermostatic valve of northern heating pipe radiator heat water flow control basically all is manual thermostatic valve, need change the manual Flow-rate adjustment of carrying out medium according to room temperature, uses very inconvenient.Sometimes in order to reach heating effect preferably, many users reach maximum with valve flow, even indoor overheating need window aeration-coolingly, have caused a large amount of wastes of the energy.

In recent years; Along with people's has proposed increasingly high requirement to the quality of heating and energy-conservation; Along with country to the going deep into of welfare heating policy reform, heating system comes into effect the mode of household metering, the appearance of thermostatic valve has greatly improved human comfortable life degree.

Thermostatic valve in the market adopts a leak source to have only a sealing surface sealing on structural design; Exist and to occur the defective that leaks outside easily; Need to change a spool general every year; Change on the one hand inconvenient, thereby spool leaks and causes user's indoor article to damage to cause the certain economic loss, influence the user simultaneously and use on the other hand.

The model utility content

The utility model has overcome the shortcoming that leak source of thermostatic valve of the prior art has only a sealing surface sealing, and a kind of good seal performance and thermostatic valve easy for installation simple in structure are provided.

In order to solve the problems of the technologies described above; The utility model is realized through following technological scheme: a kind of thermostatic valve; Comprise valve seat and mangetic core assembly; Said mangetic core assembly comprises the spool that is fixedly mounted on the said valve seat, and said spool is the cartridge of both ends open, the valve gap of the top open part that is fixedly mounted on said spool that said mangetic core assembly also comprises; Said valve gap is the hollow piece of both ends open, comprises first valve rod hole; The lower ending opening of said spool comprises second valve rod hole; Said mangetic core assembly also comprises the valve rod that passes said first valve rod hole and second valve rod hole; Be provided with valve pocket in the said spool, be arranged with spring on the part of said valve rod in valve pocket, the bottom of said spool offers step hole; Said step hole comprises said second valve rod hole that sets gradually from top to bottom and internal diameter second opening portion greater than said second valve rod hole; The part that said valve rod is positioned at said second opening portion is arranged with first seal ring and first catch from top to bottom successively, and said first catch is fixedly mounted in the said spool, and said first seal ring is in compressive state.

Preferably, be the clamping annexation between said first catch and the said spool, the madial wall of second opening portion of said spool is provided with indent or the second protruding inserted part, and said first catch is connected in said second inserted part.

Preferably, said second inserted part is the groove of indent, comprises second bearing surface that directly contacts with edge one side of first catch.

Preferably; Said first valve rod hole is positioned at the top of said valve gap; Said valve gap also comprises and is positioned at its bottom and internal diameter greater than first opening portion of said first valve rod hole; The part that said valve rod is positioned at said first opening portion is arranged with the 4th seal ring and second catch from top to bottom successively, and said second catch is fixedly mounted in the said valve gap, and said the 4th seal ring is in compressive state.

Preferably, be the clamping annexation between said second catch and the said valve gap, the madial wall of first opening portion of said valve gap is provided with indent or the first protruding inserted part, and said second catch is connected in said first inserted part.

Preferably, said first inserted part is the groove of indent, comprises first bearing surface that directly contacts with edge one side of second catch.

Preferably; Said valve gap and said spool matching and fixing are installed; The attachment face of said valve gap and/or said spool is provided with first groove; Said valve gap cooperates said first groove in installation back to form second seal groove with said spool, be provided with second seal ring that is in compressive state in said second seal groove.

Preferably; Said spool and said valve seat matching and fixing are installed; The attachment face of said spool and/or said valve seat is provided with second groove; Said valve seat cooperates said second groove in installation back to form the 3rd seal groove with said spool, be provided with the 3rd seal ring that is in compressive state in said the 3rd seal groove.

Preferably; The periphery of said spool is provided with lug boss; The attachment face of said lug boss and/or said valve seat is provided with second groove; Said spool cooperates said second groove in installation back to become the 3rd seal groove with said valve seat, be provided with the 3rd seal ring that is in compressive state in said the 3rd seal groove; Form the 5th seal groove between the top of said lug boss or bottom and the said valve seat, be provided with the 5th seal ring that is in compressive state in said the 5th seal groove.

Preferably, the top of second opening portion on the step hole of said spool is provided with chamfering, and said valve gap comprises the epitaxy part of the tip-angled shape that cooperates with said chamfering.

Preferably; The valve pocket bottom inside of said spool is provided with second spring fixed seat that raises up; The bottom of said spring is installed on second spring fixed seat; Be arranged with hard-wired first spring fixed seat on the valve rod in the said valve pocket, the top of said spring is installed on said first spring fixed seat.

Preferably; Said first spring fixed seat comprises second pad, first snap ring and the spring fixed seat that is set in successively from top to bottom on the said valve rod; Said first snap ring is connected on the said valve rod, and the edge of said spring fixed seat is dull and stereotyped, and protrude downwards at the middle part; And middle part perforate, the top of said spring are installed on the lug boss at spring fixed seat middle part.

Compared with prior art; The mode that the utility model is provided with seal ring respectively through the attachment face at the attachment face of spool bottom, valve pocket top, spool and valve gap and spool and valve seat is strengthened the sealability of thermostatic valve; Provide a kind of sealability better thermostatic valve; Can effectively prevent the defective of valve leakage out of steam system, strengthen the reliability of thermostatic valve sealing, the working life of having improved spool.

The utility model has been simplified the structure of thermostatic valve mangetic core assembly also through the mounting type fixed seal ring of catch clamping, makes the thermostatic valve of the utility model be convenient to processing, and simple in structure, easy for installation.

Description of drawings

Fig. 1-1 is the embodiment partial sectional view of the thermostatic valve of the utility model;

Fig. 1-2 is spool and the second mode of execution partial schematic diagram of valve base sealing of the thermostatic valve of the utility model;

Fig. 2 is the mangetic core assembly sectional view of the embodiment of the thermostatic valve shown in Fig. 1-2;

Fig. 3 is the sectional view of spool of embodiment of the thermostatic valve of the utility model;

Fig. 4 is the sectional view of valve gap of embodiment of the thermostatic valve of the utility model.

Embodiment

The utility model through in spool 12 bottoms, the attachment face of the attachment face of valve pocket 40 tops, spool 12 and valve gap 9 and spool 12 and valve seat 9 mode that seal ring is set respectively strengthens the sealability of thermostatic valve; Provide a kind of sealability better thermostatic valve; Can effectively prevent the defective of valve leakage out of steam system; Strengthened the reliability of thermostatic valve sealing, the working life of having improved spool.The utility model has also been simplified the structure of thermostatic valve mangetic core assembly through the mounting type of catch clamping, make the thermostatic valve of the utility model be convenient to processing, and simple in structure, easy for installation.Below in conjunction with accompanying drawing, the embodiment of the utility model is done further detailed description.

Fig. 1 to Fig. 4 is the sectional view of the specific embodiment of the utility model.Shown in Fig. 1-1, this thermostatic valve comprises valve component, temperature controller 18, mangetic core assembly.Mangetic core assembly is fixedly mounted on the valve seat 1, and temperature controller 18 is fixedly mounted on the top and the work of control valve core assembly of mangetic core assembly, and the action of mangetic core assembly directly causes the folding degree of valve seat 1 internal valves.

Shown in Fig. 1-1, in the present embodiment, valve component comprises valve seat 1, nut 17 and is fixedly mounted on the lock pipe 15 on the water outlet of valve seat 1 through nut 17, outside the interface that lock pipe 15 combines with valve seat 1 taper ring 16 is installed.

Like Fig. 1-1 with shown in Figure 2, mangetic core assembly comprise the tubular of both ends open spool 12, be fixedly installed in the valve gap 9 of spool 12 top open parts.Mangetic core assembly is fixedly mounted on the valve seat 1 through the screw thread on spool 12 outer circumferential sides.

With shown in Figure 2, second groove 37 on spool 12 circumferential lateral surface forms the 3rd seal groove 26 with the attachment face of valve seat 1 like Fig. 1-1; Preferably spool 12 circumferential lateral surface are provided with bump 38, and second groove 37 on the bump 38 forms the 3rd seal groove 26 with the attachment face of valve seat 1.

Shown in Fig. 1-2; Preferably; The bottom of the bump 38 on spool 12 circumferential lateral surface and valve seat 1 are installed the back and are formed the 5th seal groove 28, be installed in the 3rd seal ring 11 that is in compressive state in the 3rd seal groove 26 and the 5th seal ring 29 that is in compressive state that is installed in the 5th seal groove 28 mangetic core assembly and valve seat 1 sealing are installed.The top and the valve seat 1 that also can be the bump 38 on spool 12 circumferential lateral surface are installed back formation seal groove.Seal ring is installed here can be prevented effectively that sealing, dust etc. get into thermostatic valve through the gap between spool 12 and the valve seat 1.

The difference of Fig. 1-1 and Fig. 1-2 only is the 5th seal ring 29 and the 5th seal groove 28, and mangetic core assembly therefore shown in Figure 2 is all available in Fig. 1-1 and Fig. 1-2 embodiment.

Also bump 38 can be set on the outer peripheral sidewall of spool 12 in the time of actual the use, directly on the attachment face of spool 12 and/or valve seat 1, groove be set, promptly form the seal groove that can be used for installing seal ring after the installation.

Valve gap 9 is the hollow piece of both ends open, and the outer circumferential side of valve gap 9 is provided with first groove 36 and the binding thread from top to bottom successively; The open upper end of spool 12 is the second step hole, is provided with second groove 37 and the binding thread from top to bottom successively.

After valve gap 9 cooperates installation with spool 12 through binding thread; Be positioned on the spool 12 second groove 37 be positioned at first groove 36 on the valve gap 9 and cooperate to form and second seal ring 13 that is in compressive state is installed in second seal groove, 32, the second seal grooves 32 spool 12 and valve gap 9 sealings are installed.Second seal groove 32 both can be arranged on the valve gap 9 and also can be arranged on the spool 12, can also be separately positioned on the position of valve gap 9 and spool 12 correspondences.

Preferably, valve gap 9 also comprises the epitaxy part 30 of the tip-angled shape that is positioned at its outer circumferential side top.The top that is positioned at second opening portion 25 of spool 12 is provided with chamfering 24, and the chamfering 24 on the spool 12 is installed with epitaxy part 30 matching and fixing on the valve gap 9 spool 12 and valve gap 9 secondary seals are installed, and this structure can better dustproof and waterproof.

Be provided with valve pocket 40 in the spool 12, mangetic core assembly also comprises the valve rod 10 that passes first valve rod hole 22 and second valve rod hole 23 and is sleeved on valve rod 10 and is positioned at the spring 5 on the part of valve pocket 40.

Second valve rod hole 23 is positioned at the lower ending opening portion of spool 12; The lower ending opening of spool 12 is the first step hole; Be provided with second valve rod hole 23 and internal diameter are provided with indent or convexity greater than the inwall side of second opening portion, 25, the second opening portions 25 of second valve rod hole 23 second inserted part 27 from top to bottom successively.

The part that valve rod 10 is positioned at second opening portion 25 of spool 12 is arranged with first seal ring 19 and first catch 20 that is in compressive state from top to bottom successively.First catch 20 is fixedly mounted in second opening portion 25 and compresses first seal ring 19.

In the present embodiment, second inserted part 27 is the groove of indent, comprises second bearing surface 42 that directly contacts with edge one side of first catch 20.First catch 20 is connected in second inserted part 27 on the spool 12 and compresses with second bearing surface 42 and contacts; Compress first seal ring 19 and make the seal ring 19 of winning be in compressive state after 20 fixed installations of first catch, first seal ring 19 compresses the effect of playing sealing with valve rod 10.It is not unique that the first pointed here catch 20 is installed in the mode that realizes clamping in the groove, so long as can realize 20 fixed installations of first catch and first seal ring 19 exerted pressure getting final product.The fixed installation mode of first catch 20 is not unique yet, can be mounting type such as be spirally connected yet.Through using clamping that catch is installed, when realizing sealing, simplified the structure of thermostatic valve here.

First valve rod hole 22 is positioned at the top for valve gap 9, and the lower ending opening of valve gap 9 is first opening portion 31 of internal diameter greater than first valve rod hole 22, is provided with indent or the first protruding inserted part 33 in first opening portion, 31 inwall sides.

The part that valve rod 10 is positioned at first opening portion 31 is arranged with the 4th seal ring 14 and second catch 8 that is in compressive state from top to bottom successively.

In the present embodiment, first inserted part 33 is the groove of indent, comprises first bearing surface 41 that directly contacts with edge one side of second catch 8.Second catch 8 is connected in first inserted part 33 on the valve gap 9 and compresses with first bearing surface 41 and contacts, and second catch 8 is fixedly mounted in first opening portion 31 the 4th seal ring 14.Compress the 4th seal ring 14 and make the 4th seal ring 14 be in compressive state after 8 fixed installations of second catch, the 4th seal ring 14 compresses with valve rod 10 and plays seal action.It is not unique that the second pointed here catch 8 is installed in the mode that realizes clamping in the groove, so long as can realize 8 fixed installations of second catch and second seal ring 14 exerted pressure getting final product.The fixed installation mode of second catch 8 is not unique yet, can be mounting type such as be spirally connected yet.Through using clamping that catch is installed, when realizing sealing, simplified the structure of thermostatic valve here.

The part that valve rod 10 is positioned at valve pocket 40 is arranged with first spring fixed seat 6 and spring 5 from top to bottom successively, and spool 12 comprises second spring fixed seat 21 that valve pocket 40 bottom inside are protruding.The bottom of spring 5 is installed on second spring fixed seat 21, and the top of spring 5 is installed on first spring fixed seat 6.In the present embodiment; Second spring fixed seat 21 is integrative-structures with spool 12; In the time of concrete the use, second spring fixed seat 21 also can be the branch body structure with spool 12, only needs that in this case second spring fixed seat 21 is fixedly mounted on spool 12 bottom inside and can reach identical purpose.

First spring fixed seat 6 comprises that second pad 7, first snap ring 34 and the edge that are set in successively from top to bottom on the valve rod 10 are for dull and stereotyped; The middle part is protrusion downwards; And the spring fixed seat 35 of middle part perforate; First snap ring 34 is positioned at the recess of spring fixed seat 35 lug bosses, and first snap ring 34 is fixedly mounted on the valve rod 10.

In the present embodiment, valve rod 10 is provided with groove, and 34 clampings of first snap ring are installed in the groove, thereby realizes the fixed installation of first spring fixed seat.

Valve rod 10 is positioned at and is arranged with first pad 3, second snap ring 4,4 clampings of sealing gasket 2, the second snap rings on the part of second opening portion, 25 lower ends of spool 12 from top to bottom successively and is installed on the valve rod 10; Preferred first pad 3 is the rigidity material, and preferred first pad 3 is stainless steel gasket or brass shim spacer.

Above-mentioned seal ring is the elastic material parts, the preferred rubber goods, and concrete gauge size is chosen according to actual conditions.

During use; When room temperature raise, temperature controller 18 downward overhead-valve bars 10 moved downward through valve rod 10; Second snap ring 4, first pad 3, the sealing gasket 2 of valve rod 10 the other ends are moved downward together, come throttle down to reduce rate-of flow through valve; When room temperature descends; Temperature controller 18 reduces for valve rod 10 downward pressure; Under the effect of spring 5 restoring forces, valve rod is moved upward, this moment, second snap ring 4, first pad 3, the sealing gasket 2 of valve rod 10 the other ends also moved upward together, and valve openings increases; MEDIA FLOW quantitative change through valve is big, improves room temperature.Be used for regulating rate-of flow through temperature controller 18 and the continuous of spring 5, thereby realize the purpose of control room temperature.

Should be noted that at last: above embodiment only be used to the utility model is described and and the described technological scheme of unrestricted the utility model, the last inferior noun of locality described in the literary composition is the pairing orientation of accompanying drawing; Therefore, although this specification has carried out detailed explanation with reference to the above embodiments to the present invention,, those of ordinary skill in the art should be appreciated that the inventor herein still can make amendment or is equal to replacement the present invention; And all do not break away from the technological scheme and the improvement thereof of the spirit and the scope of the utility model, and it all should be encompassed in the claim scope of the present invention.

Claims

1. thermostatic valve; Comprise valve seat (1) and mangetic core assembly; Said mangetic core assembly comprises the spool (12) that is fixedly mounted on the said valve seat (1); Said spool (12) is the cartridge of both ends open, and said mangetic core assembly also comprises the valve gap (9) of the top open part that is fixedly mounted on said spool (12); Said valve gap (9) is the hollow piece of both ends open, comprises first valve rod hole (22); The lower ending opening of said spool (12) comprises second valve rod hole (23); Said mangetic core assembly also comprises the valve rod (10) that passes said first valve rod hole (22) and second valve rod hole (23); Be provided with valve pocket (40) in the said spool (12); Be arranged with spring (5) on the part of said valve rod (10) in valve pocket (40), it is characterized in that, the bottom of said spool (12) offers step hole; Said step hole comprises said second valve rod hole (23) that sets gradually from top to bottom and internal diameter second opening portion (25) greater than said second valve rod hole (23); The part that said valve rod (10) is positioned at said second opening portion (25) is arranged with first seal ring (19) and first catch (20) from top to bottom successively, and said first catch (20) is fixedly mounted in the said spool (12), and said first seal ring (19) is in compressive state.

2. thermostatic valve according to claim 1; It is characterized in that; Be the clamping annexation between said first catch (20) and the said spool (12); The madial wall of second opening portion (25) of said spool (12) is provided with indent or protruding second inserted part (27), and said first catch (20) is connected in said second inserted part (27).

3. thermostatic valve according to claim 2 is characterized in that, said second inserted part (27) is the groove of indent, comprises second bearing surface (42) that directly contacts with edge one side of first catch (20).

4. thermostatic valve according to claim 1; It is characterized in that; Said first valve rod hole (22) is positioned at the top of said valve gap (9); Said valve gap (9) also comprises and is positioned at its bottom and internal diameter greater than first opening portion (31) of said first valve rod hole (22); The part that said valve rod (10) is positioned at said first opening portion (31) is arranged with the 4th seal ring (14) and second catch (8) from top to bottom successively, and said second catch (8) is fixedly mounted in the said valve gap (9), and said the 4th seal ring (14) is in compressive state.

5. thermostatic valve according to claim 4; It is characterized in that; Be the clamping annexation between said second catch (8) and the said valve gap (9); The madial wall of first opening portion (31) of said valve gap (9) is provided with indent or protruding first inserted part (33), and said second catch (8) is connected in said first inserted part (33).

6. thermostatic valve according to claim 5 is characterized in that, said first inserted part (33) is the groove of indent, comprises first bearing surface (41) that directly contacts with edge one side of second catch (8).

7. according to each described thermostatic valve of claim 1-6; It is characterized in that; Said valve gap (9) is installed with said spool (12) matching and fixing; The attachment face of said valve gap (9) and/or said spool (12) is provided with first groove (36), and said valve gap (9) cooperates with said spool (12) installs said first groove in back (36) formation second seal groove (32), is provided with second seal ring (13) that is in compressive state in said second seal groove (32).

8. thermostatic valve according to claim 7; It is characterized in that; Said spool (12) is installed with said valve seat (1) matching and fixing; The attachment face of said spool (12) and/or said valve seat (1) is provided with second groove (37), and said valve seat cooperates with said spool installs said second groove in back (37) formation the 3rd seal groove (26), is provided with the 3rd seal ring (11) that is in compressive state in said the 3rd seal groove (26).

9. thermostatic valve according to claim 8; It is characterized in that; The periphery of said spool (12) is provided with lug boss (38); The attachment face of said lug boss (38) and/or said valve seat (1) is provided with second groove (37), and said spool (12) cooperates installation said second groove in back (37) to become the 3rd seal groove (26) with said valve seat (1), be provided with the 3rd seal ring (11) that is in compressive state in said the 3rd seal groove (26); Form the 5th seal groove (28) between the top of said lug boss (38) or bottom and the said valve seat (1), be provided with the 5th seal ring (29) that is in compressive state in said the 5th seal groove (28).

10. thermostatic valve according to claim 8 is characterized in that, the top of second opening portion (25) on the step hole of said spool (12) is provided with chamfering (24), and said valve gap (9) comprises the epitaxy part (30) of the tip-angled shape that cooperates with said chamfering (24).

11. thermostatic valve according to claim 9 is characterized in that, the top of second opening portion (25) on the step hole of said spool (12) is provided with chamfering (24), and said valve gap (9) comprises the epitaxy part (30) of the tip-angled shape that cooperates with said chamfering (24).

12. thermostatic valve according to claim 1; It is characterized in that; Valve pocket (40) bottom inside of said spool (12) is provided with second spring fixed seat (21) that raises up; The bottom of said spring (5) is installed on second spring fixed seat (21), is arranged with hard-wired first spring fixed seat (6) on the valve rod (10) in the said valve pocket (40), and the top of said spring (5) is installed on said first spring fixed seat (6).

13. thermostatic valve according to claim 12; It is characterized in that said first spring fixed seat (6) comprises second pad (7), first snap ring (34) and the spring fixed seat (35) that is set in successively from top to bottom on the said valve rod (10), said first snap ring (34) is connected on the said valve rod (10); The edge of said spring fixed seat (35) is dull and stereotyped; The middle part is protrusion downwards, and the middle part perforate, and the top of said spring (5) is installed on the lug boss at spring fixed seat (35) middle part.