CN1332147C - Movable valves - Google Patents
Movable valves Download PDFInfo
- Publication number
- CN1332147C CN1332147C CNB2004100251858A CN200410025185A CN1332147C CN 1332147 C CN1332147 C CN 1332147C CN B2004100251858 A CNB2004100251858 A CN B2004100251858A CN 200410025185 A CN200410025185 A CN 200410025185A CN 1332147 C CN1332147 C CN 1332147C
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- CN
- China
- Prior art keywords
- valve rod
- housing
- tube chamber
- outlet
- movable
- 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 present invention relates to a movable valve which comprises a shell body in which a pipe cavity is arranged, and a valve rod, wherein the valve rod is composed of a front valve rod and a back valve rod which are connected together by a pin shaft. The front valve rod is connected with the inner wall of the pipe cavity by a screw thread. A sealing element is arranged between the back valve rod and the shell body. The tail end of the pipe cavity of the shell body is provided with an outlet which is gradually shrunk. The shape of the front end of the front valve rod is matched with the outlet. The present invention has the advantages that the valve rod of the present invention is divided into two parts, the front valve rod can move backwards and forwards, and the back valve rod is sealed by a ceramic sealing ring; when the front valve rod is adjusted, the seal of the back valve rod is not influenced; therefore, the present invention has good sealing performance, long service life, reasonable structure and broad application range.
Description
Technical field
The present invention relates to a kind of Movable valve, especially a kind of Movable valve that is used for cutting torch, welding torch.
Background technique
Its valve rod of known valve generally is the structure valve rod, seals with rubber o-ring between valve rod and housing.This valve because will often adjust valve rod, can influence the sealability of seal ring in use.The long-term use can be damaged seal ring, causes valve gas leakage or leaks.So such valve is short working life, poor sealing performance.And cutting torch, the used valve seal requirement height of welding torch, so need provide a kind of sealability better valve.
Summary of the invention
The present invention will solve the defective of above-mentioned prior art, and a kind of Movable valve that valve rod is divided into two is provided.
The present invention solves the technological scheme that its technical problem adopts.This Movable valve has housing, the valve rod of tube chamber in comprising, valve rod is made up of the preceding valve rod that links together by bearing pin, back valve rod, and preceding valve rod is threaded with lumen wall, between back valve rod and housing Sealing is arranged; The lumen distal of housing has the outlet of convergent shape, and its front end shape of preceding valve rod and this outlet are complementary.
The effect that the present invention is useful is: valve rod of the present invention is divided into two, and preceding valve rod can move forward and backward, and back valve rod when preceding valve rod is adjusted, does not influence the sealing of back valve rod with the sealing of ceramic seal circle.So good seal performance, long service life; And rational in infrastructure, applied range.
Description of drawings
Fig. 1 is the embodiment of the invention 1 structural representation;
Fig. 2 is the embodiment of the invention 2 structural representations;
Fig. 3 is the structural representation that the present invention is used for welding torch;
Fig. 4 is the structural representation of welding torch of the present invention;
Fig. 5 is the structural representation that the present invention is used for cutting torch;
Fig. 6 is the structural representation of cutting torch of the present invention.
Description of reference numerals: housing 1, tube chamber 2, inlet 3, outlet 4, step 5, handle 6, acetylene hose 7, oxygen hose 8, nut 9, back valve rod 10, regulating wheel 11, adjusting nut 12, spring 13, pad 14, O shape circle 15, dynamic seal ring 16, static seal circle 17, spacing hole 18, bearing pin 19, preceding valve rod 20, valve seat 21, the attaching nut 22, take over 23, hyperbaric oxygen tracheae 24, mixture pipe 25.
Embodiment
The invention will be described further below in conjunction with accompanying drawing:
Embodiment 1: this Movable valve, housing 1, the valve rod of tube chamber 2 are arranged in comprising, and valve rod is made up of the preceding valve rod 20 that links together by bearing pin 19, back valve rod 10, has spacing hole 18 on the back valve rod 10, and bearing pin 19 is positioned at this spacing hole 18.Therefore, preceding valve rod 20 can move forward and backward in the scope of spacing hole 18, and valve rod 20 is connected with tube chamber 2 inner threads smoothly before can making like this.Before valve rod 20 is connected with tube chamber 2 inner threads, 1 of back valve rod 10 and housing have Sealing, the sealing part comprises dynamic seal ring 16, the static seal circle of being located on the back valve rod 10 17, dynamic seal ring 16 and static seal circle 17 are made by stupalith.Tube chamber 2 inwalls are provided with the step 5 that is complementary with this static seal circle 17; Back valve rod 10 is provided with locking nut 12, and this locking nut 12 is threaded with housing 1; Also be arranged with spring 13 on the back valve rod 10, these spring 13 1 ends are butted on locking nut 12, and the other end is butted on dynamic seal ring 16 by pad 14; Between pad 14 and the dynamic seal ring 16, be equipped with O shape circle 15 between static seal circle 17 and the step 5.Tube chamber 2 ends of housing 1 have convergent shape outlet 4, and preceding valve rod 20 its front end shapes and this outlet 4 are complementary, and front end can just be blocked this outlet 4.Preceding valve rod 20 rear end diameters are greater than front end, and its rear end is threaded with tube chamber 2 walls.Preceding valve rod 20 its front ends are needle-like.Back valve rod 20 is connected with regulating wheel 11, and this regulating wheel 11 is positioned at locking nut 12 outer ends, and the regulating wheel outer end is provided with stop nut 9.Convergent shape outlet 4 is formed by the conical valve seat 21 that is fixed in housing 1.Inlet 3 is between Sealing and outlet 4.
During use, turn regulating wheel 11 because preceding valve rod 20 is connected with tube chamber 2 inner threads, therefore can screws in and stop up outlet 4, the flow of control gaseous or liquid.This moment, the turn locking nut 12, led to into that spring 13 compresses dynamic seal ring 16 and static seal circle 17, and static seal circle 17 and step 5 are closely cooperated, and guaranteed sealing.Rubber o-ring can further seal, and increases sealability.Dynamic seal ring 16 and static seal circle 17 adopt stupalith, and it is big to bear pressure, durable in use, long service life.
Embodiment 2: referring to accompanying drawing 2, valve rod 20 its front ends were tapered before difference from Example 1 was.
Using scope of the present invention is wide, can be used for water, rock gas and gas pipe line, also has each oils, chemical industry, hot cold water pipeline.
Fig. 3 is the structural representation that moving valve is used for welding torch.Welding torch is shared two moving valve A, B, moving valve A is used to control oxygen flow, and moving valve B is used to control the acetylene flow.Oxygen hose 8, acetylene hose 7 are connected on the handle 6, and handle 6 is fixed in housing 1, and the passage that communicates with oxygen hose 8, acetylene hose 7 is arranged respectively on the housing 1, are respectively equipped with a moving valve on each passage, and this moving valve inlet 3 joins with passage.Oxygen and acetylene mix after by moving valve control mutually, then from taking over 23 outputs in order to welding.Taking over 23 is connected on the housing 1 by attaching nut 22.
Fig. 4 is the structural representation that moving valve is used for cutting torch.Cut tool shared three moving valve C, D, E, oxygen hose 8, acetylene hose 7 are connected on the housing 1.From 24 outputs of hyperbaric oxygen tracheae, acetylene and oxygen mix after two moving valve D, E control respectively oxygen after two moving valve C, D control, and mixed gas is from mixture pipe 25 outputs.High pressure oxygen be used for cutting after mixed gas mixes.
Claims (8)
1, a kind of Movable valve, housing (1), valve rod that tube chamber (2) are arranged in comprising, it is characterized in that: valve rod is made up of the preceding valve rod (20) that links together by bearing pin (19), back valve rod (10), preceding valve rod (20) is connected with tube chamber (2) inner thread, between back valve rod (10) and housing (1) Sealing is arranged; Tube chamber (2) end of housing (1) has convergent shape outlet (4), and its front end shape of preceding valve rod (20) and this outlet (4) are complementary; Described Sealing comprises dynamic seal ring (16), the static seal circle of being located on the back valve rod (10) (17), and described tube chamber (2) inwall is provided with the step (5) that is complementary with this static seal circle (17); Back valve rod (10) is provided with locking nut (12), and this locking nut (12) is threaded with housing (1); Also be arranged with spring (13) on the back valve rod (10), these spring (13) one ends are butted on locking nut (12), and the other end is butted on dynamic seal ring (16) by pad (14); Between pad (14) and the dynamic seal ring (16), be equipped with O shape circle (15) between static seal circle (17) and the step (5).
2, Movable valve according to claim 1 is characterized in that: described dynamic seal ring (16) is made by stupalith with static seal circle (17).
3, Movable valve according to claim 1 is characterized in that: have spacing hole (18) on the described back valve rod (10), bearing pin (19) is positioned at this spacing hole (18).
4, Movable valve according to claim 1 is characterized in that: described preceding valve rod (20) rear end diameter is greater than front end, and its rear end is connected with tube chamber (2) inner thread.
5, Movable valve according to claim 4 is characterized in that: its front end of valve rod (20) is needle-like before described.
6, Movable valve according to claim 1 is characterized in that: its front end of valve rod (20) is conical before described.
7, Movable valve according to claim 1 is characterized in that: described back valve rod (20) is connected with regulating wheel (11), and this regulating wheel (11) is positioned at the outer end of locking nut (12).
8, Movable valve according to claim 1 is characterized in that: described convergent shape outlet (4) is formed by the conical valve seat that is fixed in housing (1) (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100251858A CN1332147C (en) | 2004-06-16 | 2004-06-16 | Movable valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100251858A CN1332147C (en) | 2004-06-16 | 2004-06-16 | Movable valves |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1584373A CN1584373A (en) | 2005-02-23 |
| CN1332147C true CN1332147C (en) | 2007-08-15 |
Family
ID=34601184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100251858A Expired - Fee Related CN1332147C (en) | 2004-06-16 | 2004-06-16 | Movable valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1332147C (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4214600A (en) * | 1979-02-15 | 1980-07-29 | Cameron Iron Works, Inc. | Valve |
| CN2171049Y (en) * | 1992-12-13 | 1994-07-06 | 王乃俊 | Double sealing conceal rod type valve |
| CN2325653Y (en) * | 1998-05-25 | 1999-06-23 | 永安市金星机电制造厂 | Jetting and suction type welding torches using LPG or natural gas as fuel |
| CN2615444Y (en) * | 2003-04-18 | 2004-05-12 | 宋保红 | Anti-leakage valve |
| CN2702130Y (en) * | 2004-06-16 | 2005-05-25 | 王培望 | Movable valve |
-
2004
- 2004-06-16 CN CNB2004100251858A patent/CN1332147C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4214600A (en) * | 1979-02-15 | 1980-07-29 | Cameron Iron Works, Inc. | Valve |
| CN2171049Y (en) * | 1992-12-13 | 1994-07-06 | 王乃俊 | Double sealing conceal rod type valve |
| CN2325653Y (en) * | 1998-05-25 | 1999-06-23 | 永安市金星机电制造厂 | Jetting and suction type welding torches using LPG or natural gas as fuel |
| CN2615444Y (en) * | 2003-04-18 | 2004-05-12 | 宋保红 | Anti-leakage valve |
| CN2702130Y (en) * | 2004-06-16 | 2005-05-25 | 王培望 | Movable valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1584373A (en) | 2005-02-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070815 |