CN220523431U - Valve rod nut with good sealing performance for petroleum pump valve - Google Patents
Valve rod nut with good sealing performance for petroleum pump valve Download PDFInfo
- Publication number
- CN220523431U CN220523431U CN202321919865.9U CN202321919865U CN220523431U CN 220523431 U CN220523431 U CN 220523431U CN 202321919865 U CN202321919865 U CN 202321919865U CN 220523431 U CN220523431 U CN 220523431U
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- China
- Prior art keywords
- valve rod
- nut
- valve
- rod nut
- flange
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- 238000007789 sealing Methods 0.000 title claims abstract description 38
- 239000003208 petroleum Substances 0.000 title claims abstract description 29
- 238000012856 packing Methods 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 125000003003 spiro group Chemical group 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 abstract 2
- 210000004907 gland Anatomy 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Lift Valve (AREA)
Abstract
The utility model relates to the technical field of petroleum pump valves, in particular to a valve rod nut with good sealing performance for a petroleum pump valve; the utility model discloses a valve rod nut with good sealing performance for a petroleum pump valve, which comprises a valve body, wherein a sealing mechanism and a rotating mechanism are arranged above the valve body, the sealing mechanism comprises a second valve rod nut, a first valve rod nut is arranged at the bottom of the second valve rod nut, a threaded hole is formed in the top of the second valve rod nut in a penetrating manner, a slot is formed in the top of the first valve rod nut in a penetrating manner, a mounting groove is uniformly formed in the slot, a packing pad with holes is arranged in the mounting groove, a valve rod is arranged in the slot, the valve rod is in threaded connection with the threaded hole of the second valve rod nut, the inner side wall of the packing pad with holes is attached to the outer side wall of the valve rod, a second connecting flange is arranged on the outer side wall of the second valve rod nut, and a first connecting flange is arranged on the outer side wall of the first valve rod nut.
Description
Technical Field
The utility model relates to the technical field of petroleum pump valves, in particular to a valve rod nut with good sealing performance for a petroleum pump valve.
Background
Petroleum refers to gaseous, liquid and solid hydrocarbon mixtures having a natural appearance, which is also divided into crude oil, natural gas liquids, natural tar and the like, but it is customary to use "petroleum" as a definition of "crude oil", which is a viscous, dark brown liquid called "industrial blood". Petroleum is used primarily as a fuel oil and gasoline, and is also a feedstock for many chemical industry products such as solutions, fertilizers, pesticides, plastics, and the like.
At present, in the process of transporting petroleum, a petroleum pump valve is usually required to be used for transporting or stopping petroleum, a valve rod is controlled by a hand wheel to rotate on a valve rod nut to open or close a valve clack at the bottom of the valve rod so as to achieve the effect of starting or stopping petroleum transportation, but in order to prevent the overflow of a gap between the petroleum Kong Fagan nut and the valve rod, a perforated packing pad is arranged in the valve rod nut for sealing, and due to long-time use, the perforated packing pad is aged, so that the sealing effect is reduced, and because the perforated packing pad is arranged in the valve rod nut, the perforated packing pad is troublesome to replace firstly, and aiming at the situation, the technical innovation is carried out on the basis of the valve rod nut with good sealing property for the conventional petroleum pump valve.
Disclosure of Invention
The utility model aims to provide a valve rod nut with good sealing performance for a petroleum pump valve, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a valve rod nut that leakproofness is good for petroleum pump valve, includes the valve body, sealing mechanism and slewing mechanism have been laid to the top of valve body, sealing mechanism includes second valve rod nut, first valve rod nut has been laid to the bottom of second valve rod nut, threaded hole has been seted up in the top run-through of second valve rod nut, the slot has been seted up in the slot, evenly seted up the mounting groove, be provided with foraminiferous packing in the mounting groove, be provided with the valve rod in the slot, the valve rod is screwed with the screw hole of second valve rod nut mutually, foraminiferous packing's inside wall and valve rod lateral wall laminating mutually, the lateral wall of second valve rod nut is provided with second flange, the lateral wall of first valve rod nut is provided with first flange, be provided with first bolt in the connecting hole of second flange and first flange, the lateral wall spiro union of first bolt has first nut, first nut is located the below of first coupling flange, slewing mechanism is located matched with valve rod.
Preferably, the rotating mechanism comprises a screw, a hand wheel is arranged on the outer side wall of the screw, a second nut is connected to the outer side wall of the screw in a threaded mode, the second nut is located at the top of the hand wheel, and bolts are uniformly arranged at the bottom of the hand wheel.
Preferably, the first valve rod nut is placed at the top of the valve body, the outer side wall of the first valve rod nut is provided with a fourth connecting flange, the outer side wall of the valve body is provided with a third connecting flange, second bolts are arranged in connecting holes of the fourth connecting flange and the third connecting flange, the outer side wall of the second bolts is in threaded connection with a third nut, and the third nut is located below the third connecting flange.
Preferably, the screw rod is arranged at the top of the valve rod, jacks are uniformly formed in the top of the valve rod, and the bolts are arranged in the jacks.
Preferably, a first compression sealing ring is arranged between the second valve rod nut and the first valve rod nut, and a second compression sealing ring is arranged between the valve body and the first valve rod nut.
Preferably, the valve body is in communication with a first valve stem nut, which is in communication with a second valve stem nut.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model relates to a valve rod nut that leakproofness is good for petroleum pump valve, split traditional valve rod nut into first valve rod nut and second valve rod nut, after first valve rod nut dismantles, compare the volume and the weight of traditional valve rod nut first valve rod nut can be littleer, and then more make things convenient for the workman to dismantle the change with the foraminiferous packing pad of its inner chamber, improved the convenience of device maintenance;
the sealing effect of the whole valve rod nut can be effectively improved by arranging a plurality of groups of packing gaskets with holes in the inner cavity of the first valve rod nut, and good sealing performance of the whole valve rod nut is ensured.
Drawings
FIG. 1 is a schematic diagram of a valve stem nut with good tightness for a petroleum pump valve;
FIG. 2 is a front partial cross-sectional view of a valve stem nut of the present utility model having good sealing properties for use in a petroleum pump valve;
fig. 3 is an enlarged view of a portion a of fig. 2 of a valve stem nut for a petroleum pump valve having good sealing performance.
In the figure: 1. a valve stem; 11. a first valve stem nut; 12. a second valve stem nut; 13. a perforated packing pad; 14. a first connection flange; 15. a second connection flange; 16. a first compression seal ring; 17. a first bolt; 18. a first nut; 2. a screw; 21. a hand wheel; 22. a plug pin; 23. a second nut; 3. a valve body; 31. a third connecting flange; 32. a fourth connecting flange; 33. a second bolt; 34. a third nut; 35. and a second pressing sealing ring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-3, a valve rod nut with good sealing performance for petroleum pump valve comprises a valve body 3, a sealing mechanism and a rotating mechanism are arranged above the valve body 3, the sealing mechanism comprises a second valve rod nut 12, a first valve rod nut 11 is arranged at the bottom of the second valve rod nut 12, a threaded hole is formed through the top of the second valve rod nut 12, a slot is formed through the top of the first valve rod nut 11, a mounting groove is uniformly formed in the slot, a packing pad 13 with holes is fixedly arranged in the mounting groove, a valve rod 1 is rotationally arranged in the slot, the valve rod 1 is in threaded connection with the threaded hole of the second valve rod nut 12, the inner side wall of the packing pad 13 with holes is attached to the outer side wall of the valve rod 1, the sealing effect of the whole valve rod nut can be effectively improved by arranging a plurality of groups of packing pads 13 with holes, a second connecting flange 15 is fixedly arranged on the outer side wall of the second valve rod nut 12, the outer side wall of the first valve rod nut 11 is fixedly provided with a first connecting flange 14, the second connecting flange 15 and the connecting hole of the first connecting flange 14 are rotationally provided with a first bolt 17, the outer side wall of the first bolt 17 is in threaded connection with a first nut 18, the first nut 18 is positioned below the first connecting flange 14, the first connecting flange 14 and the second connecting flange 15 are fixed together through the first bolt 17 and the first nut 18, the first valve rod nut 11 and the second valve rod nut 12 are further connected and fixed together, a rotating mechanism is positioned at the top of the valve rod 1 and matched with the valve rod 1, the rotating mechanism comprises a screw rod 2, the outer side wall of the screw rod 2 is rotationally provided with a hand wheel 21, the outer side wall of the screw rod 2 is in threaded connection with a second nut 23, the second nut 23 is positioned at the top of the hand wheel 21, the bottom of the hand wheel 21 is uniformly and fixedly provided with a bolt 22, the screw rod 2 is fixedly arranged at the top of the valve rod 1, the jack has evenly been seted up at the top of valve rod 1, bolt 22 sliding arrangement is in the jack, fix hand wheel 21 on valve rod 1 through second nut 23, drive valve rod 1 together through bolt 22 when rotating hand wheel 21 and rotate, first valve rod nut 11 is placed at the top of valve body 3, the lateral wall of first valve rod nut 11 is fixed and is provided with fourth flange 32, the lateral wall of valve body 3 is fixed and is provided with third flange 31, the connecting hole rotation of fourth flange 32 and third flange 31 is provided with second bolt 33, the lateral wall spiro union of second bolt 33 has third nut 34, third nut 34 is located the below of third flange 31, be in the same place third flange 31 and fourth flange 32 through second bolt 33 and third nut 34, and then be in the same place first valve rod nut 11 and valve body 3 connection, first gland 16 has been placed between second valve rod nut 12 and the first valve rod nut 11, can prevent from spilling over from second valve rod nut 12 and the connecting gap of first flange 11 through first gland 16, can prevent from spilling over from second valve rod nut 11 and first gland 3 and second valve rod nut 11 through first gland 35, the valve rod nut 11 is connected with first gland 35, oil valve rod nut 11 is connected with second gland 35.
Working principle: the third connecting flange 31 and the fourth connecting flange 32 are fixed together through the second bolt 33 and the third nut 34, the first valve rod nut 11 and the valve body 3 are connected and fixed together, oil can be prevented from overflowing from a connecting gap between the valve body 3 and the first valve rod nut 11 through the second compression sealing ring 35, the first connecting flange 14 and the second connecting flange 15 are fixed together through the first bolt 17 and the first nut 18, the first valve rod nut 11 and the second valve rod nut 12 are connected and fixed together, oil can be prevented from overflowing from a connecting gap between the second valve rod nut 12 and the first valve rod nut 11 through the first compression sealing ring 16, the hand wheel 21 is fixed on the valve rod 1 through the second nut 23, the valve rod 1 is driven to rotate together through the bolt 22 when the hand wheel 21 is rotated, and the sealing effect of the whole valve rod nut can be effectively improved through the arrangement of a plurality of groups of packing gaskets 13 with holes;
when the first compression sealing ring 16, the second compression sealing ring 35 and the perforated packing pad 13 need to be replaced, the hand wheel 21 can be removed by detaching the second nut 23, then the first bolt 17 is screwed down to screw down the second valve rod nut 12 from the valve rod 1, so that the first compression sealing ring 16 can be replaced, and after the second bolt 33 is screwed down, the first valve rod nut 11 can be pulled out from the valve rod 1, so that the second compression sealing ring 35 can be replaced.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a valve rod nut that leakproofness is good for petroleum pump valve, includes valve body (3), its characterized in that: sealing mechanism and slewing mechanism have been laid to the top of valve body (3), sealing mechanism includes second valve rod nut (12), first valve rod nut (11) have been laid to the bottom of second valve rod nut (12), threaded hole has been seted up in the top of second valve rod nut (12) run through, the slot has been seted up in the top of first valve rod nut (11) run through, evenly set up the mounting groove in the slot, be provided with foraminiferous packing pad (13) in the mounting groove, be provided with valve rod (1) in the slot, the screw hole looks spiro union of valve rod (1) and second valve rod nut (12), the inside wall and the valve rod (1) lateral wall of foraminiferous packing pad (13) laminate mutually, the lateral wall of second valve rod nut (12) is provided with second flange (15), the lateral wall of first valve rod nut (11) is provided with first flange (14), be provided with first bolt (17) in the connecting hole of second flange (15) and first flange (14), first bolt (17) are located first bolt (18) and first bolt (18) are located the outside of first valve rod nut (1) and the top of valve rod nut (18).
2. The valve stem nut with good sealing performance for petroleum pump valves according to claim 1, wherein: the rotating mechanism comprises a screw rod (2), a hand wheel (21) is arranged on the outer side wall of the screw rod (2), a second nut (23) is connected to the outer side wall of the screw rod (2) in a threaded mode, the second nut (23) is located at the top of the hand wheel (21), and bolts (22) are evenly arranged at the bottom of the hand wheel (21).
3. The valve stem nut with good sealing performance for petroleum pump valves according to claim 2, wherein: the top at valve body (3) is placed to first valve rod nut (11), the lateral wall of first valve rod nut (11) is provided with fourth flange (32), the lateral wall of valve body (3) is provided with third flange (31), be provided with second bolt (33) in the connecting hole of fourth flange (32) and third flange (31), the lateral wall spiro union of second bolt (33) has third nut (34), third nut (34) are located the below of third flange (31).
4. The valve stem nut with good sealing performance for petroleum pump valves according to claim 2, wherein: the screw rod (2) is arranged at the top of the valve rod (1), jacks are uniformly formed in the top of the valve rod (1), and the bolt (22) is arranged in the jacks.
5. A valve stem nut for a petroleum pump valve having good sealability as defined in claim 3, wherein: a first compression sealing ring (16) is arranged between the second valve rod nut (12) and the first valve rod nut (11), and a second compression sealing ring (35) is arranged between the valve body (3) and the first valve rod nut (11).
6. A valve stem nut for a petroleum pump valve having good sealability as defined in claim 3, wherein: the valve body (3) is communicated with a first valve rod nut (11), and the first valve rod nut (11) is communicated with a second valve rod nut (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321919865.9U CN220523431U (en) | 2023-07-20 | 2023-07-20 | Valve rod nut with good sealing performance for petroleum pump valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321919865.9U CN220523431U (en) | 2023-07-20 | 2023-07-20 | Valve rod nut with good sealing performance for petroleum pump valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220523431U true CN220523431U (en) | 2024-02-23 |
Family
ID=89927044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321919865.9U Active CN220523431U (en) | 2023-07-20 | 2023-07-20 | Valve rod nut with good sealing performance for petroleum pump valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220523431U (en) |
-
2023
- 2023-07-20 CN CN202321919865.9U patent/CN220523431U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |