CN204553961U - A kind of reduction valve - Google Patents

A kind of reduction valve Download PDF

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Publication number
CN204553961U
CN204553961U CN201520221037.7U CN201520221037U CN204553961U CN 204553961 U CN204553961 U CN 204553961U CN 201520221037 U CN201520221037 U CN 201520221037U CN 204553961 U CN204553961 U CN 204553961U
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CN
China
Prior art keywords
piston
valve body
flap
valve
threaded hole
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Application number
CN201520221037.7U
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Chinese (zh)
Inventor
王凯
董德全
蒋婉秋
黄赤五
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YANTAI RONGCHUANG OPTOELECTRONICS TECHNOLOGY CO., LTD.
Original Assignee
YANTAI RONGCHUANG SOLAR WATER HEATER CO Ltd
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Priority to CN201520221037.7U priority Critical patent/CN204553961U/en
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Abstract

The utility model relates to a kind of reduction valve, comprise valve body, valve gap, piston and flap, valve body is provided with water intake and water outlet, the inside of valve body is provided with greatly, small sircle hole, water outlet is communicated with big hole by runner, valve gap is provided with valve gap interior threaded hole, adjusting screw rod is rotary with in valve gap interior threaded hole, upper spring is provided with between adjusting screw rod and piston, form annular pass water intake between piston with valve body to be communicated with annular pass, the outer periphery of piston is provided with O type circle, flap coordinates by fastening screw and piston interior threaded hole the bottom being fixed on piston, sealing gasket is provided with between piston and flap, the bottom of valve body is provided with plug, lower spring is provided with between flap and plug.The utility model volume is little, simple and compact for structure, easy to use easy to operate, and adjustable outlet pressure, to using scope, uses more safe and reliable.

Description

A kind of reduction valve
Technical field
The utility model relates to a kind of reduction valve, belongs to control valve unit equipment technical field.
Background technique
Existing solar water heater has band tank solar water heater and non-water tank solar water heater, band tank solar water heater adopts enclosed water tank to carry out water storage, and non-water tank solar water heater adopts heat collecting pipe to carry out water storage, what heat collecting pipe was selected is heavy caliber, and the glass tube of certain pressure can be born, no matter be that enclosed water tank or heavy caliber heat collecting pipe are subject to adopted material, welding stress is eliminated, the impact of the factor such as internal high temperature or metal fatigue has certain bearing capacity, if the pressure of tap water directly acts on water tank or heat collecting pipe can result in water tank or heat collecting pipe leaks, thus greatly shorten the working life of water tank or heat collecting pipe, affect popularization and the use of solar water heater.Therefore need to arrange reduction valve on inlet pipeline, adjustable device outlet pressure makes to enter the Stress control of the current of water tank or heat collecting pipe within water tank or heat collecting pipe pressure-bearing scope by reduction valve, in prior art, the internal structure of reduction valve is complicated, usual employing diaphragm induction pressure, repeatedly uses to there will be to damage or respond to and is inaccurately unfavorable for later maintenance; Meanwhile, the reliability that the complexity of structure also determines reduction valve is lower, and working life is short.
Model utility content
The deficiency that the utility model exists for above-mentioned prior art, provides a kind of simple and compact, the reduction valve of easy to operate adjustable outlet pressure.
The technological scheme that the utility model solves the problems of the technologies described above is as follows: a kind of reduction valve, it is characterized in that, comprise valve body, the valve gap be threaded with described valve body top, be arranged on the piston of described valve inner and be arranged on the flap of described piston base, the both sides of described valve body are respectively equipped with water intake and water outlet, the inside of described valve body is provided be connected up and down large, small sircle hole, described water outlet is communicated with described big hole by runner, described valve gap is provided with valve gap interior threaded hole, adjusting screw rod is rotary with in described valve gap interior threaded hole, upper spring is provided with between described adjusting screw rod and described piston, just form annular pass between the described piston of described water intake and described valve body, described water intake is communicated with described annular pass, the sectional shape of described piston is in " ten " font, outer periphery and the described valve body contact place of described piston are provided with O type circle, the bottom of described piston is provided with piston interior threaded hole, described flap coordinates by fastening screw and piston interior threaded hole the bottom being fixed on described piston, sealing gasket is provided with between described piston and flap, the bottom of described valve body is provided with plug, lower spring is provided with between described flap and plug, described piston is at adjusting screw rod, can greatly described under the effect of upper spring and lower spring, on in small sircle hole, lower slider.
The top of described upper spring is provided with spring seat, described spring seat external diameter be less than the diameter of described valve gap interior threaded hole, be more than or equal to the external diameter of described adjusting screw rod.By the upper end of valve gap interior threaded hole restriction upper spring, also facilitate adjusting screw rod to upper spring entirety force simultaneously.
O type circle is provided with between described plug and valve body.The sealing effect of further guarantee body base.
Valve fore pressure is delivered on flap by water intake, annular pass and forms upstream pressure, after valve, pressure is acted on piston by the runner of valve body water outlet and forms downstream pressure, upper and lower spring, piston and flap interact and form aux. pressure controlling mechanism, make between flap to valve body, to form corresponding open degree by rotating adjusting screw rod, thus acquisition downstream pressure controls to can bear in range of pressure values at water-storing tank or heat collecting pipe, realizes the object reduced pressure.
The beneficial effects of the utility model are: volume is little, simple and compact for structure, easy to use easy to operate, and adjustable outlet pressure, to using scope, uses more safe and reliable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure, 1, valve body; 2, fastening screw; 3, plug; 4, lower spring; 5, O type circle; 6, flap; 7, sealing gasket; 8, spring seat; 9, adjusting screw rod; 10, valve gap; 11, piston; 12, water intake; 13, water outlet; 14, upper spring; 15, big hole; 16, small sircle hole; 17, runner; 18, valve gap interior threaded hole; 19, piston interior threaded hole; 20, annular pass.
Embodiment
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, a kind of reduction valve, comprise valve body 1, the valve gap 10 be threaded with described valve body 1 top, be arranged on the piston 11 of described valve inner and be arranged on the flap 6 of described piston base, the both sides of described valve body 1 are respectively equipped with water intake 12 and water outlet 13, the inside of described valve body 1 is provided with the big hole 15 and small sircle hole 16 that are connected up and down, described water outlet 13 is communicated with described big hole 15 by runner 17, described valve gap 10 is provided with valve gap interior threaded hole 18, adjusting screw rod 9 is rotary with in described valve gap interior threaded hole 18, upper spring 14 is provided with between described adjusting screw rod 9 and described piston 11, just form annular pass 20 between the described piston of described water intake 12 and described valve body, described water intake is communicated with described annular pass 20, the sectional shape of described piston 11 is in " ten " font, outer periphery and the described valve body contact place of described piston are provided with O type circle 5, the bottom of described piston 11 is provided with piston interior threaded hole 19, described flap 6 coordinates by fastening screw 2 and piston interior threaded hole 19 the bottom being fixed on described piston, sealing gasket 7 is provided with between described piston 11 and flap 6, the bottom of described valve body is provided with plug 3, lower spring 4 is provided with between described flap 6 and plug 3, described piston 11 is at adjusting screw rod 9, can at described big hole 15 under the effect of upper spring 14 and lower spring 4, on in small sircle hole 16, lower slider.
The top of described upper spring 14 is provided with spring seat 8, described spring seat 8 external diameter be less than the diameter of described valve gap interior threaded hole 18, be more than or equal to the external diameter of described adjusting screw rod 9.By the upper end of valve gap interior threaded hole restriction upper spring, also facilitate adjusting screw rod to upper spring entirety force simultaneously.
O type circle 5 is provided with between described plug and valve body.The sealing effect of further guarantee body base.
During flow, water outlet pressure drop, water inlet saliva is by acting on flap behind annular pass, flap moves down opens reduction valve, because water is little to flap active area, flow is very little, can avoid opening that instantaneous pressure is excessive causes damage to water tank or heat collecting pipe, makes downstream pressure reach required value after opening by adjusting screw rod; When anhydrous flowing, outlet pressure rises, and water outlet saliva acts on piston by runner and makes piston and flap move and close reduction valve and reach the object subtracting static pressure.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Claims (3)

1. a reduction valve, it is characterized in that, comprise valve body, the valve gap be threaded with described valve body top, be arranged on the piston of described valve inner and be arranged on the flap of described piston base, the both sides of described valve body are respectively equipped with water intake and water outlet, the inside of described valve body is provided be connected up and down large, small sircle hole, described water outlet is communicated with described big hole by runner, described valve gap is provided with valve gap interior threaded hole, adjusting screw rod is rotary with in described valve gap interior threaded hole, upper spring is provided with between described adjusting screw rod and described piston, just form annular pass between the described piston of described water intake and described valve body, described water intake is communicated with described annular pass, the sectional shape of described piston is in " ten " font, outer periphery and the described valve body contact place of described piston are provided with O type circle, the bottom of described piston is provided with piston interior threaded hole, described flap coordinates by fastening screw and piston interior threaded hole the bottom being fixed on described piston, sealing gasket is provided with between described piston and flap, the bottom of described valve body is provided with plug, lower spring is provided with between described flap and plug, described piston is at adjusting screw rod, can greatly described under the effect of upper spring and lower spring, on in small sircle hole, lower slider.
2. reduction valve according to claim 1, is characterized in that, the top of described upper spring is provided with spring seat, described spring seat external diameter be less than the diameter of described valve gap interior threaded hole, be more than or equal to the external diameter of described adjusting screw rod.
3. reduction valve according to claim 1 and 2, is characterized in that, is provided with O type circle between described plug and valve body.
CN201520221037.7U 2015-04-13 2015-04-13 A kind of reduction valve Active CN204553961U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520221037.7U CN204553961U (en) 2015-04-13 2015-04-13 A kind of reduction valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520221037.7U CN204553961U (en) 2015-04-13 2015-04-13 A kind of reduction valve

Publications (1)

Publication Number Publication Date
CN204553961U true CN204553961U (en) 2015-08-12

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Application Number Title Priority Date Filing Date
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CN (1) CN204553961U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105179757A (en) * 2015-09-25 2015-12-23 中山市亚泰机械实业有限公司 Flow regulating valve with overvoltage protection
CN108506544A (en) * 2018-04-26 2018-09-07 中煤科工集团重庆研究院有限公司 Pressure adjustable type high pressure Pressure reducing valve for hot water
CN108644397A (en) * 2018-08-08 2018-10-12 百强阀门集团有限公司 Depressurize shut-off valve

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105179757A (en) * 2015-09-25 2015-12-23 中山市亚泰机械实业有限公司 Flow regulating valve with overvoltage protection
CN105179757B (en) * 2015-09-25 2018-03-06 中山市亚泰机械实业有限公司 Flow regulating valve with overvoltage protection
CN108506544A (en) * 2018-04-26 2018-09-07 中煤科工集团重庆研究院有限公司 Pressure adjustable type high pressure Pressure reducing valve for hot water
CN108506544B (en) * 2018-04-26 2019-10-11 中煤科工集团重庆研究院有限公司 Pressure adjustable type high pressure Pressure reducing valve for hot water
CN108644397A (en) * 2018-08-08 2018-10-12 百强阀门集团有限公司 Depressurize shut-off valve

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ASS Succession or assignment of patent right

Owner name: YANTAI RONGCHUANG PHOTOELECTRIC TECHNOLOGY CO., LT

Free format text: FORMER OWNER: YANTAI RONGCHUANG SOLAR WATER HEATER CO., LTD.

Effective date: 20150811

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Address after: 264006 room 1, No. 32, Zhujianglu Road 317, Yantai Development Zone, Shandong, China

Patentee after: YANTAI RONGCHUANG OPTOELECTRONICS TECHNOLOGY CO., LTD.

Address before: 264000 Shandong Province, Yantai city Zhifu District Fuyuan Road No. 2

Patentee before: Yantai Rongchuang Solar Water Heater Co., Ltd.

C41 Transfer of patent application or patent right or utility model
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Effective date of registration: 20160108

Address after: 264000, No. 2 middle Beijing Road, Yantai economic and Technological Development Zone, Shandong, China

Patentee after: Dong Dequan

Address before: 264006 room 1, No. 32, Zhujianglu Road 317, Yantai Development Zone, Shandong, China

Patentee before: YANTAI RONGCHUANG OPTOELECTRONICS TECHNOLOGY CO., LTD.

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20160328

Address after: 264006 room 1, No. 32, Zhujianglu Road 317, Yantai Development Zone, Shandong, China

Patentee after: YANTAI RONGCHUANG OPTOELECTRONICS TECHNOLOGY CO., LTD.

Address before: 264000, No. 2 middle Beijing Road, Yantai economic and Technological Development Zone, Shandong, China

Patentee before: Dong Dequan

PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Safety structure of l pressure-reducing valve

Effective date of registration: 20160408

Granted publication date: 20150812

Pledgee: Yantai fortune finance Company Limited by Guarantee

Pledgor: Wang Kai|Yantai window Photoelectric Technology Co., Ltd.|Yantai window solar water heater Co., Ltd.

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