CN2380754Y - Balancing-core valve - Google Patents
Balancing-core valve Download PDFInfo
- Publication number
- CN2380754Y CN2380754Y CN 99241911 CN99241911U CN2380754Y CN 2380754 Y CN2380754 Y CN 2380754Y CN 99241911 CN99241911 CN 99241911 CN 99241911 U CN99241911 U CN 99241911U CN 2380754 Y CN2380754 Y CN 2380754Y
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- balancing
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a balancing-core valve which is composed of a valve body, a valve core, a valve sleeve, a nut cap, a positioning screwed pin, sealing rubber rings, an annular groove, a water inlet, an inner hole, a balancing cavity, etc. The utility model is characterized in that the valve body is connected with the nut cap through the positioning screwed pin; the nut cap is provided with the annular groove inside; the valve core is positioned in the valve sleeve which is sheathed in the valve body simultaneously; the sealing rubber rings are arranged on the water inlet at bottom and the contact point of the valve core and the valve sleeve; the lower part of the valve core is provided with the inner hole; the balancing cavity is formed between the valve core and the valve sleeve and is positioned on the middle part of the valve core. The valve of the utility model has the advantages of simple and convenient operation, favorable sealing performance, safety, easy wearing part replacement, economy and high durability.
Description
The utility model relates to a kind of valve, refers to a kind of Balancing-core valve especially.
Valve is the element that uses in enormous quantities on oil transportation, water delivery and other liquid conducting pipes.It is several that the valve mechanism form of Shi Yonging mainly contains skin money formula, ball (awl) shape and flashboard type etc. now.
In the use, skin money formula, ball (awl) shape valve all are to utilize the spool rotation, only gapped one section very big trapezoidal thread guiding, and spool and sealed mouth perpendicularity are difficult to guarantee.Because of being subjected to spin friction power, the mating face of skin money formula, ball (awl) shape is fragile, and spherical also can fit badly valve because of off-centre; The producting process difficulty of gate valve is bigger, and it is very difficult to close valve tight; The closing torque of above-mentioned valve is relevant with system pressure; The frequent keying, the sealing position can be damaged, and causes valve to fit badly, at this moment, the operator just can firmly remove to screw valve, thereby causes the trapezoidal thread position to damage, and adds that factory is manufacturing in a rough way, therefore life of valve is short, and loading and unloading are changed very difficult again, is a kind of product anxious to be updated.
In view of this, the long-pending experience of being engaged in this professional work decades of this creator, through experimental demonstration repeatedly, eventually generation of the present utility model.
At the shortcoming of prior art, the purpose of this utility model provides a kind of Balancing-core valve, and a kind of valve structure makes valve operation light, and good seal performance is safe and reliable, and it is easy to change easily damaged parts, and economy and durability improves utilization efficiency.
For achieving the above object, the utility model is achieved through the following technical solutions: a kind of Balancing-core valve, form by valve body, spool, valve pocket, nut cap, location silk pin, O-ring seal, circular trough, water intake, endoporus, counter balance pocket etc.; It is characterized in that: valve body is connected by location silk pin with nut cap, the nut cap the inside is provided with circular trough, spool is located in the valve pocket, valve pocket is located in the valve body simultaneously, O-ring seal is located at the contacting point of bottom water intake and spool and valve pocket, the bottom of spool is provided with endoporus, forms counter balance pocket between spool and the valve pocket, is positioned at the spool medium position.
Spool, valve pocket are by cast iron or steel or rear earth zinc-aluminium alloy or engineering plastics or copper one-tenth.
The utlity model has following characteristics:
1. in valve mechanism, increase a hydro-cushion chamber, make spool in system, be in pressure balance all the time, therefore, only just can the opening and closing valve with a constant very little moment.
2. valve is subjected to structural constraint and can not rotates, and Sealing only is subjected to axial micro-deformation impacting force, and is therefore not fragile, long service life.
3. spool and valve pocket have three place's fitting surfaces, have guaranteed the vertical of spool and sealed mouth fitting surface.
4. the trapezoidal thread part is only born very little moment, and is not fragile.
5. valve body, spool, valve pocket can be used resistant material, and its application area is big.
6. simple to operate when changing the valve inner part.
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
Fig. 1 is the utility model cross-sectional schematic;
Fig. 2 looks schematic representation for the utility model right side.
The figure number explanation:
Valve body 1 spool 2
Valve pocket 3 nut caps 4
Location silk pin 5 O-ring seals 6
Circular trough 7 water intakes 8
Endoporus 9 counter balance pocket 10
As shown in Figure 1 and Figure 2, the utility model is made up of valve body 1, spool 2, valve pocket 3, nut cap 4, location silk pin 5, O-ring seal 6, circular trough 7, water intake 8, endoporus 9, counter balance pocket 10 etc.; Valve body 1 is connected by location silk pin 5 with nut cap 4, nut cap 4 the insides are provided with circular trough 7, spool 2 is located in the valve pocket 3, valve pocket 3 is located in the valve body 1 simultaneously, O-ring seal 6 is located at the contacting point of bottom water intake 8 and spool 2 and valve pocket 3, the bottom of spool 2 is provided with endoporus 9, forms counter balance pocket 10 between spool 2 and the valve pocket 3, is positioned at spool 2 medium positions.
As mentioned above, between spool and valve pocket, increase a counter balance pocket, the pressure in the counter balance pocket and the pressure of water inlet equate, like this, spool is in the stress balance state when the opening and closing position, at this moment, need be applied to unlatching on the spool and the power of closing will be very little, therefore, just can not damage trapezoidal thread when opening or closing valve, valve can be used for a long time; Exist under the situation of counter balance pocket, the pressure independent of Sealing sealing and system, Sealing only is subjected to axial micro-deformation impacting force, so Sealing is not fragile yet, long service life.
In sum, be preferred embodiment of the present utility model, all changes of doing according to technical solutions of the utility model when the function that is produced does not exceed the scope of technical solutions of the utility model, all belong to protection domain of the present utility model.
Claims (6)
1, a kind of Balancing-core valve is made up of valve body, spool, valve pocket, nut cap, location silk pin, O-ring seal, circular trough, water intake, endoporus, counter balance pocket etc.; It is characterized in that: valve body is connected by location silk pin with nut cap, the nut cap the inside is provided with circular trough, spool is located in the valve pocket, valve pocket is located in the valve body simultaneously, O-ring seal is located at the contacting point of bottom water intake and spool and valve pocket, the bottom of spool is provided with endoporus, forms counter balance pocket between spool and the valve pocket, is positioned at the spool medium position.
2, Balancing-core valve as claimed in claim 1 is characterized in that: spool, valve pocket are made by rear earth zinc-aluminium alloy.
3, Balancing-core valve as claimed in claim 1 is characterized in that: spool, valve pocket are made by engineering plastics.
4, Balancing-core valve as claimed in claim 1 is characterized in that: valve pocket, valve pocket are made of copper.
5, Balancing-core valve as claimed in claim 1 is characterized in that: valve pocket, valve pocket are made by cast iron.
6, Balancing-core valve as claimed in claim 1 is characterized in that: valve pocket, valve pocket are made by steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99241911 CN2380754Y (en) | 1999-08-17 | 1999-08-17 | Balancing-core valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99241911 CN2380754Y (en) | 1999-08-17 | 1999-08-17 | Balancing-core valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2380754Y true CN2380754Y (en) | 2000-05-31 |
Family
ID=34028683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99241911 Expired - Fee Related CN2380754Y (en) | 1999-08-17 | 1999-08-17 | Balancing-core valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2380754Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108505965A (en) * | 2018-03-23 | 2018-09-07 | 中煤科工集团西安研究院有限公司 | One kind suppressing desealed hydraulic expansion packer and solution encapsulation method |
-
1999
- 1999-08-17 CN CN 99241911 patent/CN2380754Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108505965A (en) * | 2018-03-23 | 2018-09-07 | 中煤科工集团西安研究院有限公司 | One kind suppressing desealed hydraulic expansion packer and solution encapsulation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |