CN202674364U - Hard seal ball valve - Google Patents
Hard seal ball valve Download PDFInfo
- Publication number
- CN202674364U CN202674364U CN2012202631527U CN201220263152U CN202674364U CN 202674364 U CN202674364 U CN 202674364U CN 2012202631527 U CN2012202631527 U CN 2012202631527U CN 201220263152 U CN201220263152 U CN 201220263152U CN 202674364 U CN202674364 U CN 202674364U
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- CN
- China
- Prior art keywords
- valve body
- joint
- valve
- hard seal
- round platform
- 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 discloses a hard seal ball valve. The hard seal ball valve comprises a valve body, a joint, a valve support, a steel ball and a handle, wherein both the valve body and the joint are made of steel; the steel ball is used for controlling the connection and disconnection between the valve body and an oil passage on the joint; the valve support is also made of steel and integrally formed together with the joint; and the steel ball is in direct line contact with the valve body and valve support. Compared with the prior art, a valve seat made of a soft material is omitted, the valve support and the joint are made of the same material and integrally formed, and the steel ball is in direct line contact with the joint and the valve body, so that hard seal and abrasion resistance are realized, and compared with sealing of soft materials, the purposes of good sealing performance and resistance to ultrahigh pressure are achieved.
Description
Technical field
The utility model relates to the ball check valve in the coal mine hydraulic supporting oil hydraulic circuit, and specifically, the utility model relates to a kind of hard seal ball valve.
Background technique
Ball check valve is a kind of of stop valve, be widely used in the oil hydraulic circuit of coal mine fully-mechanized mining working hydraulic support, when a certain loop generation problem of this support need to be overhauled, ball valve can disconnect this loop and major loop, and did not affect the normal operation of other supports.Ball-valve structure commonly used as shown in Figure 6 at present, it comprises joint 1, valve body 3 and the interior steel ball 6 of the cavity that is built in valve body 3, the break-make of the oil duct on steel ball 6 control valve bodies 3 and the joint 1, between the oil duct ingress on the joint 1 and steel ball 6, be provided with the valve holder 5 of sealing usefulness, between the oil duct outlet port on the valve body 3 and steel ball 6, be provided with the valve seat 14 of sealing usefulness, because valve holder 5 and valve seat 14 are to adopt the polyformaldehyde material of softwood matter to make, then be soft seal between steel ball 6 and joint 1 and the valve body 3, exist the defective of anti-ultrahigh pressure poor performance, and soft material weares and teares easily, and using sealability of a specified duration also can variation.
The model utility content
Technical problem to be solved in the utility model provides a kind of hard seal ball valve, to reach the purpose of ability ultrahigh pressure.
In order to solve the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of hard seal ball valve, comprise valve body, joint, valve holder, steel ball and handgrip, valve body and joint are steel, the break-make of the oil duct on steel ball control valve body and the joint, described valve holder and described joint are one-body molded with material, and directly holder contacts and is that line contacts described steel ball with valve with described valve body.
For being threaded, joint is also fastening by locking nut between described joint and the described valve body.
Be provided with the O RunddichtringO between position in described joint gos deep into described valve body and the valve body.
Described handgrip comprises round platform base and the lever that is fixedly connected on the round platform base, the round platform base is provided with the cubic hole that is connected with rotating shaft on the described valve body, the end of stretching out valve body of rotating shaft is inserted in this hole, four directions and is matched with cubic hole, and rotating shaft is connected with steel ball in valve body.
Be provided with the limit structure of control handle rotation angle at described round platform base.
Described limit structure is the curve bath coaxial with the round platform base that is located on the bottom surface of described round platform base, correspondingly is provided with the position limit pin that inserts in this curve bath at described valve body.
Described curve bath is located at the edge of the bottom surface of described round platform base.
The radian of described curve bath is 90 degree.
Described lever and described round platform base are one-body molded.
The utility model adopts technique scheme, compared with prior art, save softwood matter valve seat, and the valve holder is made as with joint integrated with material, and steel ball is directly contacted with the valve body line with joint, realize firmly sealing, wear-resistant, with respect to the sealing of softwood matter, not only good seal performance is gone back ability ultrahigh pressure.
Description of drawings
Fig. 1 is the structural representation of hard seal ball valve of the present utility model;
Fig. 2 is the structural representation of the handgrip of hard seal ball valve of the present utility model;
K among Fig. 3 Fig. 2 is to view;
Fig. 4 is the plan view of Fig. 2;
Fig. 5 is the A-A sectional view of Fig. 4;
Fig. 6 is the structural representation of the ball valve in the background technique;
Mark among the above-mentioned figure is: 1, joint; 2, locking nut; 3, valve body; 4, O RunddichtringO; 5, valve holder; 6, steel ball; 7, handgrip; 8, position limit pin; 9, round platform base; 10, lever; 11, cubic hole; 12, curve bath; 13, rotating shaft; 14, valve seat.
Embodiment
Be illustrated in figure 1 as a kind of hard seal ball valve of the present utility model, comprise valve body 3, joint 1, valve holder 5, steel ball 6 and handgrip 7, valve body 3 and joint 1 are steel, are No. 45 steel, the break-make of the oil duct on steel ball 6 control valve bodies 3 and the joint 1.In order to solve problems of the prior art, valve holder 5 and the joint 1 of this ball valve are integrated with material, and steel ball 6 directly contacts with valve holder 5 with valve body 3 and is that line contacts.Compared with prior art, this ball valve saves softwood matter valve seat, and is made as with joint 1 valve holder 5 integrated with material, steel ball 6 is directly contacted with valve body 3 lines with joint 1, realize firmly sealing, wear-resistant, with respect to the sealing of softwood matter, not only good seal performance is gone back ability ultrahigh pressure.
As shown in Figure 1, for being threaded, joint 1 is also fastening by locking nut 2 between joint 1 and the valve body 3.Also be provided with O RunddichtringO 4 between position in joint 1 gos deep into valve body 3 and the valve body 3, guarantee the sealing between joint 1 and the valve body 3.
Such as Fig. 2 and the handgrip 7 that Figure 4 shows that this ball valve, it is connected with the rotating shaft 13 of ball valve, this handgrip 7 comprises round platform base 9 and the lever 10 that is fixedly connected on the round platform base 9, such as Fig. 3 and shown in Figure 5, round platform base 9 is provided with the cubic hole 11 that is connected with rotating shaft 13, the end of stretching out valve body 3 of rotating shaft 13 is inserted in this hole, four directions 11 and is matched with cubic hole 11, and by bolton round platform base 9 and rotating shaft 13, rotating shaft 13 is connected with steel ball 6 in valve body 3.Lever 10 is formed in one with round platform base 9.This ball valve handgrip 7 compared with prior art has advantage simple in structure, and production and processing is convenient, and the rotating shaft 13 of ball valve is to insert in the square hole of handgrip 7 to be connected with handgrip 7, make the easy to assembly simple of handgrip 7, and be easy to installation and maintenance, operational torque is little laborsaving.
As shown in Figures 2 and 3, be provided with the limit structure of control handgrip 7 rotation angles at round platform base 9, this limit structure is the curve bath 12 coaxial with round platform base 9 that is located at the bottom surface of round platform base 9, correspondingly is provided with the position limit pin 8 that inserts in this curve bath 12 at ball valve.Curve bath 12 is located at the edge of the bottom surface of round platform base 9, and the radian of curve bath 12 is 90 degree.
Such as Fig. 2 and shown in Figure 4, the cross section of lever 10 is oval, makes the operational torque of handgrip 7 little by lever 10, and is laborsaving during operation.
The above has carried out exemplary description to the utility model by reference to the accompanying drawings; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technological scheme carry out; or without improving design of the present utility model and technological scheme are directly applied to other occasion, all within protection domain of the present utility model.
Claims (9)
1. hard seal ball valve, comprise valve body (3), joint (1), valve holder (5), steel ball (6) and handgrip (7), valve body (3) and joint (1) are steel, the break-make of the oil duct on steel ball (6) control valve body (3) and the joint (1), it is characterized in that: described valve holder (5) is one-body molded with material with described joint (1), and described steel ball (6) directly contacts with valve holder (5) with described valve body (3) and is the line contact.
2. hard seal ball valve according to claim 1 is characterized in that: for being threaded, joint (1) is also fastening by locking nut (2) between described joint (1) and the described valve body (3).
3. hard seal ball valve according to claim 1 and 2 is characterized in that: be provided with O RunddichtringO (4) between the position in described joint (1) gos deep into described valve body (3) and the valve body (3).
4. hard seal ball valve according to claim 3, it is characterized in that: described handgrip (7) comprises round platform base (9) and is fixedly connected on lever (10) on the round platform base (9), round platform base (9) is provided with the cubic hole (11) that is connected with rotating shaft (13) on the described valve body (3), the end of stretching out valve body (3) of rotating shaft (13) is inserted in this hole, four directions (11) and is matched with cubic hole (11), and rotating shaft (13) is connected with steel ball (6) in valve body (3).
5. hard seal ball valve according to claim 4 is characterized in that: the limit structure that is provided with control handgrip (7) rotation angle at described round platform base (9).
6. hard seal ball valve according to claim 5, it is characterized in that: described limit structure is for being located at the curve bath (12) coaxial with round platform base (9) on the bottom surface of described round platform base (9), correspondingly is provided with the position limit pin (8) that inserts in this curve bath (12) at described valve body (3).
7. hard seal ball valve according to claim 6, it is characterized in that: described curve bath (12) is located at the edge of the bottom surface of described round platform base (9).
8. hard seal ball valve according to claim 7 is characterized in that: the radian of described curve bath (12) is 90 degree.
9. hard seal ball valve according to claim 8 is characterized in that: described lever (10) is one-body molded with described round platform base (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202631527U CN202674364U (en) | 2012-06-06 | 2012-06-06 | Hard seal ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202631527U CN202674364U (en) | 2012-06-06 | 2012-06-06 | Hard seal ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202674364U true CN202674364U (en) | 2013-01-16 |
Family
ID=47495270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202631527U Expired - Fee Related CN202674364U (en) | 2012-06-06 | 2012-06-06 | Hard seal ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202674364U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107345579A (en) * | 2016-05-04 | 2017-11-14 | 洪宝玉 | A kind of modified self sealing valve |
-
2012
- 2012-06-06 CN CN2012202631527U patent/CN202674364U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107345579A (en) * | 2016-05-04 | 2017-11-14 | 洪宝玉 | A kind of modified self sealing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20150606 |
|
| EXPY | Termination of patent right or utility model |