CN204647474U - A kind of novel defferential valve - Google Patents
A kind of novel defferential valve Download PDFInfo
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- CN204647474U CN204647474U CN201520281854.1U CN201520281854U CN204647474U CN 204647474 U CN204647474 U CN 204647474U CN 201520281854 U CN201520281854 U CN 201520281854U CN 204647474 U CN204647474 U CN 204647474U
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Abstract
A novel defferential valve, it relates to heating ventilation air-conditioning system technical field.The upper end of described intermediate is fixed with valve gap, valve gap and intermediate joint by fastening piece and is provided with diaphragm, the top of described valve gap is provided with and is plugged with adjusting screw, adjusting screw upper end is connected with locking nut, the upper end of valve gap is socketed with sheath, the lower end of adjusting screw is connected with spring by spring bearer plate, the lower end of spring is fixed on diaphragm pressing plate upper end, diaphragm pressing plate and diaphragm press table are respectively arranged with the two ends up and down of diaphragm, and being fixed on valve rod by nut, butterfly spring cooperation, valve rod is connected on the flap of valve inner through intermediate.Its structure is simple, the defferential valve that reaction velocity is fast, and this defferential valve can shorten valve and open the response time, reduces the pressure loss of pipe-line system.
Description
Technical field
The utility model relates to heating ventilation air-conditioning system technical field, is specifically related to a kind of novel defferential valve.
Background technique
Under normal circumstances, pipeline pressure reduction all can fluctuate within the specific limits, and change among a small circle can't affect the use of user, also can not be dangerous; But because larger change is that the mankind are unpredictable; the life safety of people can be hindered also to cause damage to people; therefore in order to stop these hidden danger, need the defferential valve device installing protective conduit in the duct, it can be good at ensureing the stable of flow system flow or temperature.In prior art, the complex structure of defferential valve, installation and removal are inconvenient, and reaction velocity is slow.
Summary of the invention
It is simple that the purpose of this utility model is to provide a kind of structure, the defferential valve that reaction velocity is fast, and this defferential valve can shorten valve and open the response time, reduces the pressure loss of pipe-line system.
In order to solve the problem existing for background technique, the utility model is by the following technical solutions: it comprises sheath, adjusting screw, locking nut, spring bearer plate, valve gap, spring, nut, butterfly spring, diaphragm pressing plate, fastening piece, diaphragm, diaphragm press table, intermediate, valve rod, valve body, the upper end of described intermediate is fixed with valve gap by fastening piece, valve gap and intermediate joint are provided with diaphragm, the top of described valve gap is provided with and is plugged with adjusting screw, adjusting screw upper end is connected with locking nut, the upper end of valve gap is socketed with sheath, the lower end of adjusting screw is connected with spring by spring bearer plate, the lower end of spring is fixed on diaphragm pressing plate upper end, diaphragm pressing plate and diaphragm press table are respectively arranged with the two ends up and down of diaphragm, and pass through nut, butterfly spring cooperation is fixed on valve rod, valve rod is connected on the flap of valve inner through intermediate.
As preferably, the bottom of described adjusting screw is connected in the groove of spring bearer plate upper surface, and the upper end of spring is connected to the flange place bottom spring bearer plate.
The beneficial effects of the utility model: 1, its structure is simple, reasonable in design, can shorten valve and open the response time, reduce the pressure loss of pipe-line system; Adopt adjusting screw to combine with spring, utilize the elasticity of spring to regulate setting value, turn clockwise adjusting screw, and setup pressure value increases; Be rotated counterclockwise adjusting screw, setup pressure value reduces; When pipeline pressure is excessive, defferential valve can be opened rapidly, and the time is lower than 0.5s;
2, defferential valve of the present utility model adopts spring directly to control pressure reduction, and structure is simple, and response speed is fast and without pressure measurement pipeline blockage problem, be well positioned to meet in user.
3, the defferential valve amount of releasing of the present utility model is less, can reduce the pressure loss of pipeline to a great extent; Defferential valve structure of the present utility model is simple, and easy for installation being easy to regulates, long service life, and Security is good, is worthy of popularization.
4, the main valve that defferential valve of the present utility model is installed on various bore as pilot valve realizes the function controlling pressure reduction together, and very convenient installation and removal, reduce cost greatly, also better serve client simultaneously.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the pipeline schematic diagram of practicality of the present utility model;
Fig. 3 is that defferential valve of the present utility model is installed on the structural representation of main valve as pilot valve;
Fig. 4 is that defferential valve of the present utility model is installed on the pipeline schematic diagram of main valve as pilot valve.
Reference character: sheath 1, adjusting screw 2, locking nut 3, spring bearer plate 4, valve gap 5, spring 6, nut 7, butterfly spring 8, diaphragm pressing plate 9, fastening piece 10, diaphragm 11, diaphragm press table 12, intermediate 13, valve rod 14, valve body 15, flap 16.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technological scheme and advantage clearly understand, below in conjunction with the drawings and the specific embodiments, the utility model is further elaborated.Should be appreciated that embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Referring to Fig. 1, this embodiment adopts lower technological scheme: it comprises sheath 1, adjusting screw 2, locking nut 3, spring bearer plate 4, valve gap 5, spring 6, nut 7, butterfly spring 8, diaphragm pressing plate 9, fastening piece 10, diaphragm 11, diaphragm press table 12, intermediate 13, valve rod 14, valve body 15, the upper end of described intermediate 13 is fixed with valve gap 5 by fastening piece 10, valve gap 5 and intermediate 13 joint are provided with diaphragm 11, the top of described valve gap 5 is provided with and is plugged with adjusting screw 2, adjusting screw 2 upper end is connected with locking nut 3, the upper end of valve gap 5 is socketed with sheath 1, the lower end of adjusting screw 2 is connected with spring 6 by spring bearer plate 4, the lower end of spring 6 is fixed on diaphragm pressing plate 9 upper end, diaphragm pressing plate 9 and diaphragm press table 12 are respectively arranged with the two ends up and down of diaphragm 11, and by nut 7, butterfly spring 8 cooperation is fixed on valve rod 14, valve rod 14 is connected on the flap 16 of valve body 15 inside through intermediate 13.
As preferably, the bottom of described adjusting screw 2 is connected in the groove of spring bearer plate 4 upper surface, and the upper end of spring 6 is connected to the flange place bottom spring bearer plate 4.
In actual use, small-bore pipeline directly can install defferential valve, as shown in Figure 2, be the structural representation that defferential valve of the present utility model is used alone.But in order to meet the requirement of client on large bore, also in order to reduce costs, we can be installed on main valve using defferential valve as pilot valve and cooperate and use as defferential valve, as shown in Figure 3, Figure 4, for defferential valve of the present utility model to be installed on structure and the pipeline schematic diagram of main valve as pilot valve, now defferential valve is installed on main valve as pilot valve, it can complete the various functions of defferential valve very completely, the relation of main valve below pilot valve correspondence: 1, pilot valve aperture increases main valve aperture increases; 2, pilot valve aperture reduces the reduction of main valve aperture;
Defferential valve is installed on the function main valve of various bore realizing controlling together pressure reduction as pilot valve, very convenient installation and removal, reduce cost greatly, also better serve client simultaneously.
Valve gap 5 and valve rod 14 are by precision stainless steel casting, and thickness is even, and intensity is good, and outward appearance is clean and tidy.Flap 16 is that vulcanized rubber is processed into, and has very strong working life.Wherein, defferential valve of the present utility model also comprise be positioned at valve gap 5 top adjusting screw 2, be positioned at spring 6 below described adjusting screw 2, the lower end abutment of described spring 6 is in diaphragm top board 5, described diaphragm top board is provided with diaphragm 11 and diaphragm press table 12 for 5 times successively, diaphragm 11 is NBR+Nylon hangings laies, intensity is high, good springiness, with pressure 1,000,000 times not damaged; The longitudinal section of described valve gap 5 is inverted U, and it is inner that described spring 6 is positioned at described valve gap.Defferential valve of the present utility model adopts spring 6 directly to control pressure reduction, and structure is simple, and response speed is fast and without pressure measurement pipeline blockage problem, be well positioned to meet in user.
Described sheath 1 can prevent dust or other foreign material from entering into defferential valve, is conducive to the working life extending defferential valve.
The beneficial effect of this embodiment: 1, its structure is simple, reasonable in design, can shorten valve and open the response time, reduce the pressure loss of pipe-line system; Adopt adjusting screw to combine with spring, utilize the elasticity of spring to regulate setting value, turn clockwise adjusting screw, and setup pressure value increases; Be rotated counterclockwise adjusting screw, setup pressure value reduces; When pipeline pressure is excessive, defferential valve can be opened rapidly, and the time is lower than 0.5s;
2, defferential valve of the present utility model adopts spring directly to control pressure reduction, and structure is simple, and response speed is fast and without pressure measurement pipeline blockage problem, be well positioned to meet in user.
3, the defferential valve amount of releasing of the present utility model is less, can reduce the pressure loss of pipeline to a great extent; Defferential valve structure of the present utility model is simple, and easy for installation being easy to regulates, long service life, and Security is good, is worthy of popularization.
4, the main valve that defferential valve of the present utility model is installed on various bore as pilot valve realizes the function controlling pressure reduction together, and very convenient installation and removal, reduce cost greatly, also better serve client simultaneously.
The above is only in order to illustrate the technical solution of the utility model and unrestricted, other amendment that those of ordinary skill in the art make the technical solution of the utility model or equivalently to replace, only otherwise depart from the spirit and scope of technical solutions of the utility model, all should be encompassed in the middle of right of the present utility model.
Claims (2)
1. a novel defferential valve, is characterized in that it comprises sheath (1), adjusting screw (2), locking nut (3), spring bearer plate (4), valve gap (5), spring (6), nut (7), butterfly spring (8), diaphragm pressing plate (9), fastening piece (10), diaphragm (11), diaphragm press table (12), intermediate (13), valve rod (14), valve body (15), flap (16), the upper end of described intermediate (13) is fixed with valve gap (5) by fastening piece (10), valve gap (5) and intermediate (13) joint are provided with diaphragm (11), the top of described valve gap (5) is provided with and is plugged with adjusting screw (2), adjusting screw (2) upper end is connected with locking nut (3), the upper end of valve gap (5) is socketed with sheath (1), the lower end of adjusting screw (2) is connected with spring (6) by spring bearer plate (4), the lower end of spring (6) is fixed on diaphragm pressing plate (9) upper end, diaphragm pressing plate (9) and diaphragm press table (12) are respectively arranged with the two ends up and down of diaphragm (11), and by nut (7), butterfly spring (8) cooperation is fixed on valve rod (14), and valve rod (14) is connected on the inner flap (16) of valve body (15) through intermediate (13).
2. a kind of novel defferential valve according to claim 1, it is characterized in that the bottom of described adjusting screw (2) is connected in the groove of spring bearer plate (4) upper surface, the upper end of spring (6) is connected to the flange place of spring bearer plate (4) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520281854.1U CN204647474U (en) | 2015-05-05 | 2015-05-05 | A kind of novel defferential valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520281854.1U CN204647474U (en) | 2015-05-05 | 2015-05-05 | A kind of novel defferential valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204647474U true CN204647474U (en) | 2015-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520281854.1U Active CN204647474U (en) | 2015-05-05 | 2015-05-05 | A kind of novel defferential valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204647474U (en) |
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2015
- 2015-05-05 CN CN201520281854.1U patent/CN204647474U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170216 Address after: Qingpu 201700 waiqingsong road Shanghai City, No. 5399 Building 2 -1 Patentee after: SHANGHAI KANGCUO FLUID CONTROL CO., LTD. Patentee after: Jet flow control (Shanghai) Co., Ltd. Address before: Jiading District Jiangqiao town park four road 201812 Shanghai City No. 188 building second floor Patentee before: SHANGHAI KANGCUO FLUID CONTROL CO., LTD. |