CN210318402U - A new valve stem nut structure - Google Patents
A new valve stem nut structure Download PDFInfo
- Publication number
- CN210318402U CN210318402U CN201920998290.1U CN201920998290U CN210318402U CN 210318402 U CN210318402 U CN 210318402U CN 201920998290 U CN201920998290 U CN 201920998290U CN 210318402 U CN210318402 U CN 210318402U
- Authority
- CN
- China
- Prior art keywords
- boss
- lower extreme
- nut
- tight circle
- outside
- 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.)
- Active
Links
- 238000003466 welding Methods 0.000 claims abstract 4
- 239000011241 protective layer Substances 0.000 claims description 7
- 229910000599 Cr alloy Inorganic materials 0.000 claims description 4
- 239000000788 chromium alloy Substances 0.000 claims description 4
- DQIPXGFHRRCVHY-UHFFFAOYSA-N chromium zinc Chemical compound [Cr].[Zn] DQIPXGFHRRCVHY-UHFFFAOYSA-N 0.000 claims description 4
- 239000010410 layer Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Landscapes
- Lift Valve (AREA)
Abstract
The utility model belongs to the technical field of the nut technique and specifically relates to a novel valve rod nut structure, which comprises a pipe body, body horizontal cross section is circularly, the outside middle part welding of body has tight circle, and the length of tight circle is 7mm, the external screw thread has been seted up to the outside upper end of body, the internal thread has been seted up to the inboard lower extreme of body, and the internal thread is left-handed thread, the outside lower extreme welding of body has the boss, and the upper end of boss and the lower extreme of tight circle contact each other, the thickness of tight circle and boss is 1: 2. This valve-stem nut cancels nut lower extreme and plane bearing complex part on the existing market, utilizes tight circle to replace, shortens the body length between external screw thread lower extreme and the boss upper end simultaneously, utilizes boss and tight circle to increase the cross-sectional area of nut lower extreme to under the unchangeable circumstances of tensile stress, make the lifting surface increase, thereby can effectually improve the holistic cracked ability of preventing of nut.
Description
Technical Field
The utility model relates to a nut technical field especially relates to a novel valve rod nut structure.
Background
When the valve is closed, an operator can screw the valve hand wheel hard to prevent the valve from leaking, and sometimes the hand wheel is closed by a stress application rod. At this moment, valve-stem nut under the dual function of valve rod and bearing gland, its upper end department bears the pulling force, and the lower extreme is bearing pressure, and the valve-stem nut cross section on the current market is unanimous simultaneously, leads to under the effect of pulling force and pressure, and the lower extreme cross-sectional area of nut is little, and the tensile stress concentrates, causes the fracture easily. To this end, we propose a new stem nut configuration.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a novel valve rod nut structure.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the novel valve rod nut structure comprises a pipe body, wherein the horizontal section of the pipe body is circular, a tight ring is welded in the middle of the outer side of the pipe body, the length of the tight ring is 7mm, an external thread is formed in the upper end of the outer portion of the pipe body, an internal thread is formed in the lower end of the inner side of the pipe body and is a left-handed thread, a boss is welded at the lower end of the outer side of the pipe body, the upper end of the boss is in contact with the lower end of the tight ring, and the thickness of the tight ring and the thickness of the boss are 1.
Preferably, a plurality of outer hole grooves are uniformly formed in the outer side of the upper end of the tight ring.
Preferably, the outer surface of the boss is plated with a protective layer, and the protective layer is a zinc-chromium alloy layer.
Preferably, the lower extreme middle part of body has evenly welded a plurality of arc pieces, and a plurality of arc pieces are the annular distribution.
The utility model provides a pair of novel valve-stem nut structure, beneficial effect lies in: this valve-stem nut cancels nut lower extreme and plane bearing complex part on the existing market, utilizes tight circle to replace, shortens the body length between external screw thread lower extreme and the boss upper end simultaneously, utilizes boss and tight circle to increase the cross-sectional area of nut lower extreme to under the unchangeable circumstances of tensile stress, make the lifting surface increase, thereby can effectually improve the holistic cracked ability of preventing of nut.
Drawings
Fig. 1 is a structural front view of the novel valve-stem nut structure provided by the utility model.
Fig. 2 is a top view of the novel valve-stem nut structure provided by the utility model.
In the figure: internal thread 1, outer hole groove 2, boss 3, tight circle 4, arc piece 5, body 6, external screw thread 7, protective layer 8.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-2, a novel valve rod nut structure comprises a pipe body 6, wherein the horizontal section of the pipe body 6 is circular, a tight ring 4 is welded in the middle of the outer side of the pipe body 6, the length of the tight ring 4 is 7mm, an external thread 7 is arranged at the upper end of the outer part of the pipe body 6, an internal thread 1 is arranged at the lower end of the inner side of the pipe body 6, the internal thread 1 is a left-handed thread, a boss 3 is welded at the lower end of the outer side of the pipe body 6, the upper end of the boss 3 is in contact with the lower end of the tight ring 4, the thicknesses of the tight ring 4 and the boss 3 are 1:2, and the length of the tight ring 4 is 7mm, compared with a valve rod nut in the common market, the length of the tight ring 4 is reduced, so that the tensile stress of the pipe body 6 is concentrated at the tight ring 4 and the boss 3, the cross-sectional area of the pipe body 6 is effectively increased, the effect of, so that tubular body 6 does not break during use.
A plurality of outer hole grooves 2 have evenly been seted up in the upper end outside of tight circle 4, the design of outer hole groove 2 can replace the part that valve-stem nut and plane bearing on the existing market mutually supported, when having improved the complex effect, the stress concentration's of body 6 problem has not only been eliminated in this design, also reduced tight circle 4's length simultaneously, when material saving, avoided the device to take place cracked condition under the effect of tensile stress.
The outer surface of the boss 3 is plated with a protective layer 8, the protective layer 8 is a zinc-chromium alloy layer, and the zinc-chromium alloy has the characteristics of high temperature resistance, wear resistance and corrosion resistance, so that the service life of the device can be prolonged, and the protection effect on the boss 3 is improved.
Evenly welded has a plurality of arc pieces 5 in the middle part of the lower extreme of body 6, and a plurality of arc pieces 5 are the annular and distribute, and arc piece 5 can be surperficial body 6 lower extreme contact with the connecting piece for a long time, simultaneously under the effect of oil stain, lead to dismantling inconveniently to can effectual holistic loading and unloading speed of nut.
To sum up, this valve-stem nut cancels nut lower extreme and flat bearing complex part on the existing market, utilizes tight circle to replace, shortens the body length between external screw thread lower extreme and the boss upper end simultaneously, utilizes boss and tight circle to increase the cross-sectional area of nut lower extreme to under the unchangeable circumstances of tensile stress, make the lifting surface increase, thereby can effectually improve the holistic cracked ability of preventing of nut.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (4)
1. The utility model provides a novel valve rod nut structure, includes body (6), body (6) horizontal cross-section is circular, its characterized in that, the outside middle part welding of body (6) has tight circle (4), and the length of tight circle (4) is 7mm, external screw thread (7) have been seted up to body (6) outside upper end, internal thread (1) have been seted up to the inboard lower extreme of body (6), and internal thread (1) is left-handed screw thread, the outside lower extreme welding of body (6) has boss (3), and the upper end of boss (3) and the lower extreme of tight circle (4) contact each other, the thickness of tight circle (4) and boss (3) is 1: 2.
2. The novel valve rod nut structure as claimed in claim 1, wherein a plurality of outer hole grooves (2) are uniformly formed on the outer side of the upper end of the tightening ring (4).
3. A new stem nut arrangement according to claim 1, characterized in that the outer surface of the boss (3) is coated with a protective layer (8), and the protective layer (8) is embodied as a zinc-chromium alloy layer.
4. The novel valve rod nut structure as claimed in claim 1, wherein a plurality of arc blocks (5) are uniformly welded to the middle of the lower end of the tube body (6), and the arc blocks (5) are distributed annularly.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920532231 | 2019-04-18 | ||
| CN2019205322315 | 2019-04-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210318402U true CN210318402U (en) | 2020-04-14 |
Family
ID=70147429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920998290.1U Active CN210318402U (en) | 2019-04-18 | 2019-06-29 | A new valve stem nut structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210318402U (en) |
-
2019
- 2019-06-29 CN CN201920998290.1U patent/CN210318402U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204677934U (en) | A kind of novel alloy flange | |
| CN204459257U (en) | A kind of triple seal valve seat | |
| CN210318402U (en) | A new valve stem nut structure | |
| CN204459260U (en) | Based on the spheroid of supersonic spray coating technique | |
| CN208982685U (en) | A kind of metal hard-sealing ball valve | |
| CN217784453U (en) | A seamless steel pipe with high service strength and good anti-fracture effect | |
| CN210013922U (en) | Wear-resistant flange nut using building support fastener | |
| CN213929091U (en) | High-strength tightening bolt | |
| CN210800045U (en) | Novel multilayer combined gasket | |
| CN209716064U (en) | A kind of novel squeeze roller | |
| CN203131317U (en) | Pipeline joint for maintenance | |
| CN204677785U (en) | A kind of valve plate of three eccentricity hard seal butterfly valve and valve seal cooperating structure | |
| CN210266337U (en) | Wear-resistant and corrosion-resistant combined three-way joint | |
| CN210034116U (en) | D-head bolt and aircraft engine | |
| CN203925766U (en) | A kind of engine piston assembly with high strength wrist pin | |
| CN208057285U (en) | A kind of structure reducing GDI oil rails supervisor and fuel injector bore fatigue cracking | |
| CN211667569U (en) | High-strength wear-resistant straight rod with groove | |
| CN205559480U (en) | Novel welding bolt | |
| CN205639128U (en) | Hydraulic slide valve | |
| CN205908765U (en) | Elasticity two way seal triple offset butterfly valve | |
| CN204852315U (en) | Steam turbine draws gas against ending a door cylinderpiston | |
| CN206487951U (en) | A kind of corrosion-resistant fire extinguisher canvas hose with spiral stainless steel insert | |
| CN214617463U (en) | High-strength and impact-toughness steel forging | |
| CN210461981U (en) | High-wear-resistance precision cold-rolled steel pipe | |
| CN216279372U (en) | High-strength wear-resistant composite gasket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231222 Address after: 363900 No.1 Shunda Road, Gunong Farm, Changtai District, Zhangzhou City, Fujian Province Patentee after: Fujian Huishang Technology Co.,Ltd. Address before: 363900 Yintang Industrial Zone, Gu Nong farm, Changtai County, Zhangzhou City, Fujian Province Patentee before: DATONG RECIPROCITY GROUP CO.,LTD. |
|
| TR01 | Transfer of patent right |