CN203363142U - Screw plug - Google Patents
Screw plug Download PDFInfo
- Publication number
- CN203363142U CN203363142U CN 201320404739 CN201320404739U CN203363142U CN 203363142 U CN203363142 U CN 203363142U CN 201320404739 CN201320404739 CN 201320404739 CN 201320404739 U CN201320404739 U CN 201320404739U CN 203363142 U CN203363142 U CN 203363142U
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- China
- Prior art keywords
- screw
- hole
- plug screw
- ball
- cylindrical head
- 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 - Lifetime
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Abstract
A screw plug comprises a screw plug body, a ball and a hexagonal cylindrical head concave end set screw. Two communicated channels are formed in the screw plug body and comprise a center through hole and a discharge hole. The center through hole comprises an upper hole and a lower hole which are communicated, the diameter of the upper hole is larger than that of the lower hole, the upper hole is connected with the lower hole through a circular conical surface, and the ball is arranged on the circular conical surface. The hexagonal cylindrical head concave end set screw comprises a second hexagonal flat end set screw and a screw rod which are fixedly connected, and a spherical surface is arranged on the lower end face of the screw rod in a concave mode. The hexagonal cylindrical head concave end set screw is in threaded connection with the upper hole, and the ball is arranged corresponding to the concave spherical surface of the lower end of the screw rod. The interior of the upper hole is in threaded connection with a first hexagonal flat end set screw which is located above the hexagonal cylindrical head concave end set screw. The ball is a steel ball. A fine copper sealing gasket is arranged below a boss of the screw plug body. The screw plug is large in bearing sealing pressure, good in sealing effect, high in working efficiency and safer.
Description
Technical field
The utility model belongs to tapped through hole seal arrangement field, particularly a kind of plug screw.
Background technique
Plug screw is the part that is threaded connection to stop liquid or gas permeation, and the plug screw of prior art generally is comprised of plug screw head and screw rod, and this plug screw does not generally bear the pressure of seal fluid.When there is the liquid of pressure in sealed inside, plug screw often is used in conjunction with seal washer, but the sealing load of existing plug screw can only bear 31.5MPa.And often have some gases in the liquid of sealing, if, when wanting to discharge the gas in liquid or discharging seal fluid, plug screw need to be backed out, repeatedly dismounting can affect sealing effect.
There is following some shortcoming in the tradition plug screw: the sealing load 1, can bear is low, generally can only bear high pressure 31.5MPa.Plug screw can only be backed out while 2, discharging the inner sealing medium, cause working efficiency lower.3, repeatedly the rear seal washer of dismounting and screw thread are easily impaired, cause sealability to reduce.
The model utility content
The purpose of this utility model is to provide a kind of plug screw, and this plug screw only needs once mounting, and discharge is during sealing medium, and the plug screw body is without dismounting, good sealing effect.
The technological scheme adopted is:
A kind of plug screw, comprise plug screw body, ball and the recessed end Cock screw of interior hexagonal cylindrical head.
Its technological points is:
The outside, plug screw body middle part has been wholely set boss, and the outer surface that the plug screw body is positioned at the boss below is provided with outside thread.
Offer two passages that are interconnected in the plug screw body, two passages are divided into along the central through bore of the axial direction of plug screw body and are positioned at the boss top and the tap hole radially along the plug screw body.
Central through bore comprises that the diameter in the ，Shang hole, He Xia hole, upper hole be interconnected is greater than the diameter in lower hole, and He Xia hole, upper hole connects by conical surface.
At conical surface, place is provided with ball.
The recessed end Cock screw of interior hexagonal cylindrical head comprises the second interior hexagonal flush end Cock screw and the screw rod be fixedly connected with, and the screw rod lower end surface is concaved with sphere.
The recessed end Cock screw of interior hexagonal cylindrical head is threaded with upper hole, the corresponding installing of the sphere that ball and screw rod lower end surface are arranged with.
Upper hole internal thread is connected with the first interior hexagonal flush end Cock screw, and the first interior hexagonal flush end Cock screw is positioned at the recessed end Cock screw of hexagonal cylindrical head top.
Described central through bore is mutually vertical with tap hole.The element of cone of conical surface place circular cone and vertical direction included angle A are 30 degree-45 degree.Described ball is steel ball.
Be provided with sealing gasket below the boss of plug screw body.Sealing gasket is the fine copper sealing gasket.
its advantage is:
1. the sealing load that the utility model plug screw can bear is far longer than common plug screw, can be 0-300MPa Applicable scope wider, good sealing effect.
2. the utility model plug screw only needs once mounting, when needs discharge the inner sealing medium, and the first interior hexagonal flush end Cock screw of the top of only need to back-outing and unscrew the recessed end Cock screw of interior hexagonal cylindrical head and get final product, working efficiency is higher.
3. the utility model plug screw body has two orthogonal passages, and when discharging internal high pressure liquid, because liquid flow direction changes, and not directly vertically ejection is used safer.
The accompanying drawing explanation
Fig. 1 is half sectional view of the present utility model.
Fig. 2 is plan view of the present utility model.
The plan view that Fig. 3 is the recessed end Cock screw of interior hexagonal cylindrical head.
The plan view that Fig. 4 is the recessed end Cock screw of interior hexagonal cylindrical head.
The sectional view that Fig. 5 is the plug screw body.
The plan view that Fig. 6 is the plug screw body.
Embodiment
A kind of plug screw, comprise plug screw body 1, ball 2 and the recessed end Cock screw 4 of interior hexagonal cylindrical head.
Offer two passages that are interconnected in plug screw body 1, two passages are divided into along the central through bore 7 of the axial direction of plug screw body 1 and are positioned at boss 6 tops and the tap hole 8 radially along plug screw body 1.
Central through bore 7 comprises that the diameter in the upper hole 9 that is interconnected and 10，Shang hole, lower hole 9 is greater than the diameter in lower hole 10, and upper hole 9 is connected by conical surface 11 with lower hole 10.
At conical surface, 11 places are provided with ball 2.
The recessed end Cock screw 4 of interior hexagonal cylindrical head comprises the second interior hexagonal flush end Cock screw 12 and the screw rod 13 be fixedly connected with, and screw rod 13 lower end surfaces are concaved with sphere 14.
The recessed end Cock screw 4 of interior hexagonal cylindrical head is threaded with upper hole 9, the corresponding installing of sphere 14 that ball 2 and screw rod 13 lower end surfaces are arranged with.
Be positioned at the recessed end Cock screw of hexagonal cylindrical head 4 tops.
Described central through bore 7 is mutually vertical with tap hole 8.The element of cone of conical surface 11 place circular cones and vertical direction included angle A are 30 degree.
Be provided with sealing gasket 3 below the boss 6 of plug screw body 1.
Described ball 2 is steel ball, and sealing gasket 3 is the fine copper sealing gasket.
The outer surface of boss 6 tops that described plug screw body 1 is positioned at is outer hexagonal structure.
Its using method is:
When needs discharge the inside workpiece medium of plug screw sealing, only need to first the first interior hexagonal flush end Cock screw 5 of top be back-outed with inner hexagon spanner, again the recessed end Cock screw 4 of interior hexagonal cylindrical head of below is unscrewed to several circles, now steel ball gap occurs under the pressure-acting of sealing inside workpiece medium and between the conical surface 11 on plug screw body 1 endoporus, and the Work piece sealing interior media enters tap hole 8 discharges of level through the central through bore 7 of plug screw body 1.
The first interior hexagonal flush end Cock screw 5 is arranged on the recessed end Cock screw 4 of interior hexagonal cylindrical head for locking.Described plug screw body 1 and need, between the workpiece of sealing, the sealing of fine copper sealing gasket to be arranged, the applicable operating ambient temperature allowed band of fine copper sealing gasket is larger, and can bear the high pressure of inner sealing medium.
Claims (6)
1. a plug screw, comprise plug screw body (1), ball (2) and the recessed end Cock screw of interior hexagonal cylindrical head (4); It is characterized in that:
The outside, plug screw body (1) middle part has been wholely set boss (6), and the outer surface that plug screw body (1) is positioned at boss (6) below is provided with outside thread;
Offer two passages that are interconnected in plug screw body (1), two passages are divided into along the central through bore (7) of the axial direction of plug screw body (1) and are positioned at boss (6) top and the tap hole (8) radially along plug screw body (1);
Central through bore (7) comprises upper hole (9) and the lower hole (10) be interconnected, and the diameter of upper hole (9) is greater than the diameter of lower hole (10), and upper hole (9) are connected by conical surface (11) with lower hole (10);
Locate to be provided with ball (2) at conical surface (11);
The recessed end Cock screw of interior hexagonal cylindrical head (4) comprises the second interior hexagonal flush end Cock screw (12) and the screw rod (13) be fixedly connected with, and screw rod (13) lower end surface is concaved with sphere (14);
The recessed end Cock screw of interior hexagonal cylindrical head (4) is threaded with upper hole (9), the corresponding installing of the sphere (14) that ball (2) and screw rod (13) lower end surface are arranged with.
2. a kind of plug screw according to claim 1, it is characterized in that: upper hole (9) internal thread is connected with the first interior hexagonal flush end Cock screw (5), and the first interior hexagonal flush end Cock screw (5) is positioned at the recessed end Cock screw of hexagonal cylindrical head (4) top.
3. a kind of plug screw according to claim 1 and 2 is characterized in that: described central through bore (7) is mutually vertical with tap hole (8); The element of cone of conical surface (11) place circular cone and vertical direction included angle A are 30 degree-45 degree.
4. a kind of plug screw according to claim 1, it is characterized in that: described ball (2) is steel ball.
5. a kind of plug screw according to claim 2, is characterized in that: be provided with sealing gasket (3) below the boss (6) of plug screw body (1).
6. a kind of plug screw according to claim 5, it is characterized in that: sealing gasket (3) is the fine copper sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320404739 CN203363142U (en) | 2013-07-09 | 2013-07-09 | Screw plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320404739 CN203363142U (en) | 2013-07-09 | 2013-07-09 | Screw plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203363142U true CN203363142U (en) | 2013-12-25 |
Family
ID=49810909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320404739 Expired - Lifetime CN203363142U (en) | 2013-07-09 | 2013-07-09 | Screw plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203363142U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730529A (en) * | 2018-06-14 | 2018-11-02 | 河南柴油机重工有限责任公司 | A kind of multimode compound seal having directional exhaust device and application method |
-
2013
- 2013-07-09 CN CN 201320404739 patent/CN203363142U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730529A (en) * | 2018-06-14 | 2018-11-02 | 河南柴油机重工有限责任公司 | A kind of multimode compound seal having directional exhaust device and application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GAO RUN Free format text: FORMER OWNER: LI HONGWEI Effective date: 20140528 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 110051 SHENYANG, LIAONING PROVINCE TO: 037301 DATONG, SHAANXI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140528 Address after: 037301 Shanxi province Datong equipment manufacturing industrial park Datong Tonghua Mining Machinery Manufacturing Co., Ltd. Patentee after: Gao Run Address before: 1809 Wanda Xintiandi, 18 South Street, Heping District, Heping District, Liaoning, Taiyuan 110051, China, Shenyang Patentee before: Li Hongwei |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160830 Address after: 100096 Beijing city Changping District Huilongguan Huang Road No. 19, No. 2 hospital 1603 Patentee after: Beijing bashkai Guanhua Technology Co.,Ltd. Address before: 037301 Shanxi province Datong equipment manufacturing industrial park Datong Tonghua Mining Machinery Manufacturing Co., Ltd. Patentee before: Gao Run |
|
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |
|
| CX01 | Expiry of patent term |