CN113898782A - Valve rod positioning and guiding device of oxygen stop valve - Google Patents
Valve rod positioning and guiding device of oxygen stop valve Download PDFInfo
- Publication number
- CN113898782A CN113898782A CN202111188912.2A CN202111188912A CN113898782A CN 113898782 A CN113898782 A CN 113898782A CN 202111188912 A CN202111188912 A CN 202111188912A CN 113898782 A CN113898782 A CN 113898782A
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- Prior art keywords
- valve
- oxygen
- screw
- thread guide
- valve body
- Prior art date
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 239000001301 oxygen Substances 0.000 title claims abstract description 59
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 59
- 238000007789 sealing Methods 0.000 claims abstract description 39
- 239000003921 oil Substances 0.000 claims abstract description 25
- 230000000670 limiting effect Effects 0.000 claims abstract description 11
- 239000010410 layer Substances 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- ABTOQLMXBSRXSM-UHFFFAOYSA-N silicon tetrafluoride Chemical compound F[Si](F)(F)F ABTOQLMXBSRXSM-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000002344 surface layer Substances 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 2
- 239000010687 lubricating oil Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 230000001050 lubricating effect Effects 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 231100000252 nontoxic Toxicity 0.000 description 4
- 230000003000 nontoxic effect Effects 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 210000004907 gland Anatomy 0.000 description 3
- 230000003670 easy-to-clean Effects 0.000 description 2
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- -1 easily clears up Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002640 oxygen therapy Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K25/00—Details relating to contact between valve members and seats
- F16K25/04—Arrangements for preventing erosion, not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K39/00—Devices for relieving the pressure on the sealing faces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N11/00—Arrangements for supplying grease from a stationary reservoir or the equivalent in or on the machine or member to be lubricated; Grease cups
- F16N11/10—Arrangements for supplying grease from a stationary reservoir or the equivalent in or on the machine or member to be lubricated; Grease cups by pressure of another fluid
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention discloses a valve rod positioning and guiding device of an oxygen stop valve, which comprises a valve body, a valve core, a thread guide block and a positioning sleeve, wherein a screw rod is arranged at the top of the valve body, the thread guide block is sleeved outside the screw rod, an upper locking nut is sleeved at the upper end of the thread guide block, a lower locking nut is sleeved at the lower end of the thread guide block, a rubber sealing ring is sleeved at the lower end of the lower locking nut, an oil box is installed at one side of the thread guide block through a screw, a small electric inflator pump is installed at the bottom of the valve body through a limiting side plate and the screw, and a pressure release valve is arranged at one end of the small electric inflator pump; the valve rod positioning and guiding device can improve the stability of the valve rod, is not easy to shake in the rotating process, does not generate mechanical noise, can automatically add lubricating oil, has a lubricating effect, has an obvious stain-resistant effect, and is suitable for wide popularization and use.
Description
Technical Field
The invention relates to the technical field of oxygen stop valves, in particular to a valve rod positioning and guiding device of an oxygen stop valve.
Background
The oxygen shut-off valve is a forced seal type valve, so when the valve is closed, pressure must be applied to the valve clack to force the sealing surface not to leak. When the medium enters the valve core from the lower part of the valve clack, the resistance to be overcome by the operating force is the friction force between the valve rod and the packing and the thrust generated by the pressure of the medium, the force for closing the valve is larger than the force for opening the valve, so the diameter of the valve rod is larger, otherwise the failure of the valve rod buckling can occur. After the self-sealing valve appears, the medium flow direction of the flange stop valve is changed into the valve cavity from the upper part of the valve clack, at the moment, under the action of medium pressure, the force for closing the valve is small, the force for opening the valve is large, the diameter of the valve rod can be correspondingly reduced, the oxygen stop valve is widely used in medical emergency oxygen therapy, the oxygen stop valve is adjusted through the valve rod, and the valve rod needs to use a positioning guide device.
The existing valve rod positioning guide device has the following defects: 1. the valve rod positioning and guiding device cannot improve the stability of the valve rod, and is easy to shake and generate mechanical noise in the rotating process; 2. lubricating oil cannot be automatically added, so that the lubricating effect is achieved; 3. the stain resistant effect is not obvious, and the stain resistant agent is easy to be stained with dust and difficult to clean. For this purpose, we propose a valve rod positioning guide device of the oxygen stop valve.
Disclosure of Invention
The invention mainly aims to provide a valve rod positioning and guiding device of an oxygen stop valve, which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
the valve rod positioning and guiding device of the oxygen stop valve comprises a valve body, a valve core, a thread guide block and a positioning sleeve, a screw rod is arranged at the top of the valve body, a thread guide block is sleeved outside the screw rod, an upper locking nut is sleeved at the upper end of the thread guide block, and the lower end of the thread guide block is sleeved with a lower locking nut, the lower end of the lower locking nut is sleeved with a rubber sealing ring, one side of the thread guide block is provided with an oil box through a screw, the bottom of the valve body is provided with a small electric inflator pump through a limit side plate and a screw, one end of the small electric inflator pump is provided with a pressure relief valve, a valve core is arranged in the valve body through a bolt, the upper end in the valve body is provided with a positioning sleeve through a support rod and a screw, the valve core is sleeved with a sealing block, the top end of the sealing block is located on the outer side of the valve core, and the top of the sealing block is provided with a bearing through a mounting hole.
Furthermore, a positioning plate is welded at the top of the screw rod, a fastening frame is installed at the top of the positioning plate through screws, and grips are installed at two ends of the fastening frame through screws; the handle is convenient for rotating the fastening frame, so that the fastening frame drives the screw rod to rotate.
Furthermore, an oil filling hole is formed in the top of the oil box, and the oil box output hole is communicated with the thread guide block.
Furthermore, a fastening hoop is installed on the periphery of the valve body through a fastening bolt, and a limiting ring is sleeved at the upper end of the upper locking nut; the limiting ring is utilized to play a limiting effect and prevent slipping.
Furthermore, the output end of the small electric inflator pump is connected with an air inlet of the oil box through a conveying hose; the power of the small-size electronic pump is put through, and the gas that produces gets into in the oil box through the delivery hose, improves internal pressure fast, and lubricating oil gets into between screw thread guide block and the lead screw under the effect of pressure, and the effectual lubricated effect that plays.
Furthermore, the lead screw penetrates through the positioning sleeve, and the bottom end of the lead screw is positioned in the inner rotating ring of the bearing.
Furthermore, a stain-resistant layer is arranged on the outer surface layer of the sealing block, the stain-resistant layer is a silicon fluoride modified coating, and the sealing block is made of PP material; the paint is non-toxic, harmless, resistant to acid and alkali corrosion, not easy to weather, and durable, and has certain elasticity and mechanical toughness.
Furthermore, two sides of the valve body are respectively connected with an oxygen input pipe and an oxygen output pipe, and the oxygen input pipe and the oxygen output pipe are respectively communicated with the input port and the output port of the valve core.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the valve rod positioning and guiding device of the oxygen stop valve, the lower locking nut and the upper locking nut are used for conveniently fixing the thread guide block, so that the thread guide block plays a guiding role in the rotation process of the screw rod, the screw rod is prevented from being inclined, the rubber sealing ring is used for playing a dustproof and waterproof effect, and the sealing performance is improved.
2. According to the positioning and guiding device for the valve rod of the oxygen stop valve, the positioning sleeve arranged on the support rod is utilized to position the bottom end of the screw rod, the stability of the screw rod in the rotating process is further improved, noise caused by shaking is avoided, the device is conveniently connected to an oxygen pipe section through the oxygen input pipe and the oxygen output pipe, the handle is rotated clockwise, the screw rod upwards drives the sealing block at the bottom end of the bearing to upwards move, the sealing block is separated from the valve core, different oxygen delivery sections can be reserved according to needs to control oxygen delivery amount, and different use requirements are met.
3. According to the positioning and guiding device for the valve rod of the oxygen stop valve, an oil box is utilized to store lubricating oil conveniently, a power supply of a small electric inflator pump is connected, generated gas enters the oil box through a conveying hose, the internal pressure is rapidly improved, lubricating oil enters a space between the thread guide block and the screw rod under the action of pressure, the lubricating effect is effectively achieved, the friction force is reduced, the mechanical energy loss is reduced, when the pressure between the valve body and the valve core is large, a pressure release valve at one end of the small electric inflator pump is opened to facilitate rapid pressure release, the stability in the valve body is improved, and damage is prevented.
4. According to the positioning and guiding device for the valve rod of the oxygen stop valve, the fastening hoop is mounted on the outer side of the valve body through the fastening bolt, so that the strength, the rigidity and the stability of the valve body are convenient to increase, the sealing block is made of PP materials, and the device is non-toxic, harmless, resistant to acid and alkali corrosion, not prone to weathering, has certain elasticity and mechanical toughness and durable in use, the stain-resistant layer is arranged on the outer surface layer of the sealing block, and the stain-resistant layer is a silicon fluoride modified coating, so that the outer surface of the sealing block is resistant to dirt, not prone to dust adhesion, easy to clean, high in coating strength, not prone to peeling and durable in use.
Drawings
FIG. 1 is a schematic view of the overall structure of the positioning and guiding device of the valve rod of the oxygen stop valve.
FIG. 2 is a schematic diagram of the internal structure of the valve body of the positioning and guiding device of the valve rod of the oxygen stop valve.
FIG. 3 is a sectional view of the valve core of the valve rod positioning guide device of the oxygen stop valve.
FIG. 4 is a schematic view of the structure of the contamination-resistant layer of the positioning and guiding device of the valve rod of the oxygen stop valve of the present invention.
In the figure: 1. a rubber seal ring; 2. a lower lock nut; 3. a threaded guide block; 4. a fastening frame; 5. positioning a plate; 6. a screw rod; 7. a grip; 8. a limiting ring; 9. locking the nut; 10. an oil box; 11. a stain resistant layer; 12. a delivery hose; 13. a valve body; 14. a fastening hoop; 15. fastening a bolt; 16. an oxygen output pipe; 17. a pressure relief valve; 18. a limiting side plate; 19. a small electric inflator; 20. an oxygen input tube; 21. a positioning sleeve; 22. a support bar; 23. a bearing; 24. a sealing block; 25. a valve core; 26. and (4) a stain resistant layer.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1-4, the valve rod positioning and guiding device of the oxygen stop valve comprises a valve body 13, a valve core 25, a thread guide block 3 and a positioning sleeve 21, wherein a screw rod 6 is arranged at the top of the valve body 13, the thread guide block 3 is sleeved outside the screw rod 6, an upper gland of the thread guide block 3 is provided with an upper lock nut 9, a lower gland of the thread guide block 3 is provided with a lower lock nut 2, a lower gland of the lower lock nut 2 is provided with a rubber sealing ring 1, an oil box 10 is installed at one side of the thread guide block 3 through a screw, a small electric inflator pump 19 is installed at the bottom of the valve body 13 through a limiting side plate 18 and a screw, one end of the small electric inflator pump 19 is provided with a valve core 17, the valve core 25 is installed in the valve body 13 through a bolt, a positioning sleeve 21 is installed at the upper end of the valve body 13 through a support rod 22 and a screw, a sealing block 24 and the top end of the sealing block 24 is located outside the valve core 25 is sleeved in the valve core 25, the top of the sealing block 24 is provided with a bearing 23 through a mounting hole.
The top welding of lead screw 6 has locating plate 5 and the top of locating plate 5 has fastening frame 4 through the screw mounting, the both ends of fastening frame 4 have handle 7 through the screw mounting.
In this embodiment, as shown in fig. 1, the handle 7 is used to facilitate the rotation of the fastening frame 4, so that the fastening frame 4 drives the screw rod 6 to rotate.
An oil filling hole is formed in the top of the oil box 10, and an output hole of the oil box 10 is communicated with the thread guide block 3.
In this embodiment, as shown in fig. 1, oil filling holes are used to facilitate the introduction of lubricating oil into the oil box 10.
A fastening hoop 14 is mounted on the periphery of the valve body 13 through a fastening bolt 15, and a limit ring 8 is sleeved on the upper end of the upper locking nut 9.
In this embodiment, as shown in fig. 1, the limiting ring 8 is used to achieve the limiting effect, and the fastening hoop 14 is installed through the fastening bolt 15, so as to increase the strength, rigidity and stability of the valve body 13.
Wherein, the output end of the small electric inflator pump 19 is connected with the air inlet hole of the oil box 10 through the delivery hose 12.
In this embodiment, as shown in fig. 1, the power supply of the small electric inflator pump 19 is connected, the generated gas enters the oil box 10 through the delivery hose 12, the internal pressure is rapidly increased, the lubricating oil enters between the thread guide block 3 and the screw rod 6 under the action of the pressure, the lubricating effect is effectively achieved, the friction force is reduced, and the mechanical energy loss is reduced.
Wherein, the screw rod 6 penetrates through the positioning sleeve 21 and the bottom end of the screw rod 6 is positioned in the inner rotating ring of the bearing 23.
In this embodiment, as shown in fig. 2, the handle 7 is rotated clockwise, so that the screw rod 6 drives the sealing block 24 at the bottom end of the bearing 23 to move upward, the sealing block 24 is separated from the valve core 25, and different oxygen delivery sections can be reserved according to requirements to control oxygen delivery amount, thereby meeting different use requirements.
Wherein, the outer surface layer of the sealing block 24 is provided with a stain resistant layer 11, the stain resistant layer 11 is a silicon fluoride modified coating, and the sealing block 24 is made of PP material.
In this embodiment, as shown in fig. 4, the sealing block 24 is made of PP, which is non-toxic, harmless, resistant to acid and alkali corrosion, not prone to weathering, has a certain elasticity and mechanical toughness, and is durable, and the outer surface layer of the sealing block 24 is provided with the stain-resistant layer 11, and the stain-resistant layer 11 is a silicon fluoride modified coating, so that the outer surface of the sealing block 24 is resistant to dirt, not prone to sticking dust, easy to clean, high in coating strength, not prone to peeling, and durable.
Wherein, two sides of the valve body 13 are respectively connected with an oxygen input pipe 20 and an oxygen output pipe 16, and the oxygen input pipe 20 and the oxygen output pipe 16 are respectively communicated with an input port and an output port of the valve core 25.
In this embodiment, as shown in fig. 1, the oxygen input pipe 20 and the oxygen output pipe 16 are used to facilitate the connection of the device to the oxygen pipe section, so that the oxygen shutoff valve works normally.
It should be noted that, the invention is a valve rod positioning and guiding device of an oxygen stop valve, when in use, the lower locking nut 2 and the upper locking nut 9 are used for fixing the thread guide block 3 to ensure that the thread guide block 3 plays a guiding role in the rotation process of the screw rod 6, the screw rod 6 is prevented from being skewed, the rubber sealing ring 1 is used for playing a dustproof and waterproof role, the sealing performance is improved, the positioning sleeve 21 arranged on the supporting rod 22 is used for positioning the bottom end of the screw rod 6, the stability in the rotation process of the screw rod 6 is further improved, the noise caused by shaking is avoided, the device is conveniently connected to an oxygen pipe section by using the oxygen input pipe 20 and the oxygen output pipe 16, the handle 7 is rotated clockwise, the screw rod 6 drives the sealing block 24 at the bottom end of the bearing 23 to move upwards, the sealing block 24 is separated from the valve core 25, and different oxygen delivery sections can be reserved according to control the oxygen delivery amount, different use requirements are met, the oil box 10 is convenient for storing lubricating oil bodies, the power supply of the small electric inflator pump 19 is connected, generated gas enters the oil box 10 through the conveying hose 12, the internal pressure is rapidly improved, the lubricating oil enters the space between the thread guide block 3 and the screw rod 6 under the action of pressure, the lubricating effect is effectively achieved, the friction force is reduced, the mechanical energy loss is reduced, when the pressure between the valve body 13 and the valve core 25 is higher, the pressure relief valve 17 at one end of the small electric inflator pump 19 is opened to facilitate rapid pressure relief, the stability in the valve body 13 is improved, the damage is prevented, the fastening hoop 14 is installed on the outer side of the valve body 13 through the fastening bolt 15, the strength, the rigidity and the stability of the valve body 13 are conveniently increased, the sealing block 24 is made of PP materials, and the small electric inflator pump is non-toxic, harmless, acid-base corrosion resistant, difficult to weathering and has certain elasticity and mechanical toughness, durable to the extexine of sealed piece 24 is provided with resistant dirty layer 11 and resistant dirty layer 11 is the modified coating of silicon fluoride, makes the resistant dirt of surface of sealed piece 24, is difficult for being stained with the dust, easily clears up, and coating intensity is high, is difficult for peeling off, durable.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. Oxygen stop valve rod location guider, including valve body (13), case (25), screw thread guide block (3) and position sleeve (21), its characterized in that: the improved air inflation valve is characterized in that a screw rod (6) is arranged at the top of the valve body (13), a thread guide block (3) is sleeved on the outer side of the screw rod (6), an upper end of the thread guide block (3) is sleeved with an upper locking nut (9), a lower end of the thread guide block (3) is sleeved with a lower locking nut (2), a lower end of the lower locking nut (2) is sleeved with a rubber sealing ring (1), an oil box (10) is installed on one side of the thread guide block (3) through a screw, a small electric inflator pump (19) is installed on the bottom of the valve body (13) through a limiting side plate (18) and a screw, a pressure release valve (17) is arranged at one end of the small electric inflator pump (19), a valve core (25) is installed in the valve body (13) through a bolt, a positioning sleeve (21) is installed on the inner upper end of the valve body (13) through a supporting rod (22) and a screw, a sealing block (24) is sleeved in the valve core (25), and the top end of the sealing block (24) is located on the outer side of the valve core (25), and the top of the sealing block (24) is provided with a bearing (23) through a mounting hole.
2. The oxygen shut-off valve stem positioning guide of claim 1, wherein: the top welding of lead screw (6) has locating plate (5) and the top of locating plate (5) to have fastening frame (4) through the screw mounting, handle (7) are installed through the screw at the both ends of fastening frame (4).
3. The oxygen shut-off valve stem positioning guide of claim 1, wherein: an oil filling hole is formed in the top of the oil box (10), and an output hole of the oil box (10) is communicated with the thread guide block (3).
4. The oxygen shut-off valve stem positioning guide of claim 1, wherein: the periphery of the valve body (13) is provided with a fastening hoop (14) through a fastening bolt (15), and the upper end of the upper locking nut (9) is provided with a limiting ring (8).
5. The oxygen shut-off valve stem positioning guide of claim 1, wherein: the output end of the small electric inflator pump (19) is connected with the air inlet of the oil box (10) through a conveying hose (12).
6. The oxygen shut-off valve stem positioning guide of claim 1, wherein: the screw rod (6) penetrates through the positioning sleeve (21) and the bottom end of the screw rod (6) is positioned in an inner rotating ring of the bearing (23).
7. The oxygen shut-off valve stem positioning guide of claim 1, wherein: the outer surface layer of the sealing block (24) is provided with a stain resistant layer (11), the stain resistant layer (11) is a silicon fluoride modified coating, and the sealing block (24) is made of PP materials.
8. The oxygen shut-off valve stem positioning guide of claim 1, wherein: the two sides of the valve body (13) are respectively connected with an oxygen input pipe (20) and an oxygen output pipe (16), and the oxygen input pipe (20) and the oxygen output pipe (16) are respectively communicated with an input port and an output port of the valve core (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111188912.2A CN113898782A (en) | 2021-10-12 | 2021-10-12 | Valve rod positioning and guiding device of oxygen stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111188912.2A CN113898782A (en) | 2021-10-12 | 2021-10-12 | Valve rod positioning and guiding device of oxygen stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113898782A true CN113898782A (en) | 2022-01-07 |
Family
ID=79191678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111188912.2A Pending CN113898782A (en) | 2021-10-12 | 2021-10-12 | Valve rod positioning and guiding device of oxygen stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113898782A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201057283Y (en) * | 2007-07-20 | 2008-05-07 | 李军 | Oxygen flame-retardant balanced stop valve |
| CN202065549U (en) * | 2010-11-29 | 2011-12-07 | 上海华通阀门有限公司 | Lubrication mechanism with threads with guiding effect of lifting valve stem |
| CN204512459U (en) * | 2015-03-16 | 2015-07-29 | 宁波埃美柯铜阀门有限公司 | A kind of valve stem elevating type stop valve |
| CN206346784U (en) * | 2016-12-31 | 2017-07-21 | 湛江电力有限公司 | A kind of turbine high-pressure servo valve valve rod attachment means |
| CN206754565U (en) * | 2017-04-26 | 2017-12-15 | 成都大学 | A kind of locking device of ball screw type stop valve |
| CN110805699A (en) * | 2019-11-22 | 2020-02-18 | 东台市高科技术创业园有限公司 | Electronic expansion valve for refrigerating system |
| CN112161068A (en) * | 2020-09-29 | 2021-01-01 | 镇江瑞昊工程塑料有限公司 | Stop valve adopting all-poly-tetrachloroethylene |
| CN213176973U (en) * | 2020-09-10 | 2021-05-11 | 南通万尔德阀门有限公司 | Novel wear-resisting valve rod guiding mechanism |
-
2021
- 2021-10-12 CN CN202111188912.2A patent/CN113898782A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201057283Y (en) * | 2007-07-20 | 2008-05-07 | 李军 | Oxygen flame-retardant balanced stop valve |
| CN202065549U (en) * | 2010-11-29 | 2011-12-07 | 上海华通阀门有限公司 | Lubrication mechanism with threads with guiding effect of lifting valve stem |
| CN204512459U (en) * | 2015-03-16 | 2015-07-29 | 宁波埃美柯铜阀门有限公司 | A kind of valve stem elevating type stop valve |
| CN206346784U (en) * | 2016-12-31 | 2017-07-21 | 湛江电力有限公司 | A kind of turbine high-pressure servo valve valve rod attachment means |
| CN206754565U (en) * | 2017-04-26 | 2017-12-15 | 成都大学 | A kind of locking device of ball screw type stop valve |
| CN110805699A (en) * | 2019-11-22 | 2020-02-18 | 东台市高科技术创业园有限公司 | Electronic expansion valve for refrigerating system |
| CN213176973U (en) * | 2020-09-10 | 2021-05-11 | 南通万尔德阀门有限公司 | Novel wear-resisting valve rod guiding mechanism |
| CN112161068A (en) * | 2020-09-29 | 2021-01-01 | 镇江瑞昊工程塑料有限公司 | Stop valve adopting all-poly-tetrachloroethylene |
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Application publication date: 20220107 |