CN209540180U - A kind of threaded stem protective case - Google Patents
A kind of threaded stem protective case Download PDFInfo
- Publication number
- CN209540180U CN209540180U CN201822078891.9U CN201822078891U CN209540180U CN 209540180 U CN209540180 U CN 209540180U CN 201822078891 U CN201822078891 U CN 201822078891U CN 209540180 U CN209540180 U CN 209540180U
- Authority
- CN
- China
- Prior art keywords
- inner sleeve
- valve rod
- sealing ring
- protective case
- threaded stem
- 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
Links
Abstract
The utility model discloses a kind of threaded stem protective cases, its structure includes valve rod, valve deck, first connector, second connector and protective device, a kind of threaded stem protective case of the utility model, by being provided with protective device in stem exterior, it is in be slidably connected by the first inner sleeve and the second inner sleeve, second inner sleeve and the second sealing ring lower end press against on valve deck, so that the second inner sleeve is slided above and below the first inner sleeve inner wall, realize the effect that protective case is not easy to be stuck, first sealing ring, second sealing ring and flexible housing play the role of sealing, solves valve rod during the motion, protective case is easy to block, influence the normal work and in use of valve rod, valve rod is easy to be corroded due to leakproofness deficiency, the problem of influencing the normal use of valve rod, the first inner sleeve and second are coated at by being provided with to stretch The design of outside of inner cover, corrosion-resistant coating and protective film is corroded so that device is more difficult.
Description
Technical field
The utility model relates to machine-building valve field more particularly to a kind of threaded stem protective cases.
Background technique
Important component one of of the valve rod as valve, it is primarily used to transmission, and the upper end of valve rod connects executing agency
Or handle, directly band movable valve plug is mobile or rotates for lower end, to realize valve switch or adjustment effect, makes in the installation of valve
, usually all can be in an externally reinforced protective case for valve rod, for guaranteeing the normal switch of valve in, but existing protection
It is insufficient to cover protectiveness, is easy so that valve rod is worn, and in the motion process of valve rod, protective case is easy to block, influences
The normal work of valve rod and in use, valve rod influence normally making for valve rod since leakproofness deficiency is easy to be corroded
With then threaded stem protective case has also obtained technological improvement, but the valve rod of the prior art is during the motion, and protective case is very
It is easy to block, influences the normal work and in use of valve rod, valve rod is influenced since leakproofness deficiency is easy to be corroded
The normal use of valve rod.
Utility model content
To solve the above-mentioned problems, the utility model patent provides a kind of threaded stem protective case, to solve existing skill
During the motion, protective case is easy to block art valve rod, influences the normal work and in use of valve rod, valve rod by
The problem of being easy to be corroded in leakproofness deficiency, influencing the normal use of valve rod.
In order to achieve the above objectives, the utility model is realized in this way: a kind of threaded stem protective case, including valve rod, valve
Lid, the first connector, the second connector and protective device, valve rod lower end grafting vertical with the progress of valve deck upper end, the valve
Lid lower end and the first connector upper end carry out vertical welding, and second connector lower end and valve rod upper end carry out vertical welding,
Protective device setting is in stem exterior, and the protective device is by the first sealing ring, the first inner sleeve, the second inner sleeve, second close
Seal, flexible housing and through-hole composition, the first sealing ring middle part carry out seamless grafting, institute with the second connector lower end outside
It states in first set upper side and seamless binding is carried out by adhesive and the first sealing ring lower end, in described second outside set upper side and the
It is slidably connected inside one inner sleeve, second sealing ring upper end carries out seamless sticky by adhesive and the second inner sleeve lower end
Connect, it is described it is flexible outer be set on the first inner sleeve and the second outside of inner cover, the through-hole is through in the first sealing ring, first
In the middle part of set, the second inner sleeve and the second sealing ring, and grafting is carried out with stem exterior outside inside through-hole, the flexible housing is by resistance to
Layer, coat body, corrosion-resistant coating and protective film composition, the wearing layer rear end is ground to carry out by adhesive and coat body front end
Bonding, the coat body rear end carried out by adhesive with corrosion-resistant coating front end it is be bonded, the corrosion-resistant coating rear end pass through glues
Mixture carries out be bonded, progress grafting outside set upper side in the wearing layer inner upper end and first with protective film front end.
Preferably, the protective film left end is provided with sawtooth, and sawtooth is provided with two or more, its advantage is that be conducive into
Row is flexible.
Preferably, the wearing layer and corrosion-resistant coating are of uniform thickness, and thickness is 5mm, its advantage is that anti-corrosion and wear-resisting
Performance is good.
Preferably, the first inner sleeve internal diameter is 5cm, and its internal diameter is as the second inner sleeve outer diameter, its advantage is that favorably
In the leakproofness for increasing device.
Preferably, the through-hole internal diameter is 2cm bigger than valve stem bore, and through-hole length be 10cm, its advantage is that be conducive into
Row installation.
The flexible housing, the first sealing ring and the second sealing ring outer surface are coated with one layer of water-repellent paint, and flexible
Housing outer surface is provided with multiple folding lines, its advantage is that the volume that can stretch carries out waterproof.
The wearing layer is mainly made of abrasive rubber, its advantage is that wear-resisting property is strong.
The corrosion-resistant coating epoxy resin composite material or polymer composite are made, its advantage is that anticorrosion, anti-to invade
Erosion.
According to the above technical scheme, the utility model can obtain following benefit, by being provided with protective device in valve rod
Outside, by the first inner sleeve and the second inner sleeve in being slidably connected, the second inner sleeve and the second sealing ring lower end are pressed against on valve deck, so that
Second inner sleeve is slided above and below the first inner sleeve inner wall, realizes the effect that protective case is not easy to be stuck, the first sealing ring,
Two sealing rings and flexible housing play the role of sealing, solve valve rod during the motion, and protective case is easy to block, shadow
The normal work and in use of valve rod is rung, valve rod influences the normal of valve rod since leakproofness deficiency is easy to be corroded
The problem of use, is coated at the first inner sleeve and the second outside of inner cover by being provided with to stretch, the design of corrosion-resistant coating and protective film,
It is corroded so that device is more difficult.
Detailed description of the invention
The utility model is described in further detail below in conjunction with attached drawing,
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the protective device structural schematic diagram of the utility model；
Fig. 3 is the flexible jacket structure schematic diagram of the utility model；
In figure: valve rod -1, valve deck -2, the first connector -3, the second connector -4, protective device -5, the first sealing ring -
51, the first inner sleeve -52, the second inner sleeve -53, the second sealing ring -54, flexible housing -55, through-hole -56, wearing layer -551, housing
Ontology -552, corrosion-resistant coating -553, protective film -554, sawtooth -501.
Specific embodiment
Referring to attached drawing, the utility model provides a kind of threaded stem protective case: including valve rod 1, valve deck 2, the first connector
3, the second connector 4 and protective device 5, the grafting vertical with the progress of 2 upper end of valve deck of 1 lower end of valve rod, 2 lower end of valve deck is connect with first
First 3 upper end carries out vertical welding, and 4 lower end of the second connector and 1 upper end of valve rod carry out vertical welding, and protective device 5 is arranged in valve
Outside bar 1, protective device 5 is by the first sealing ring 51, the first inner sleeve 52, the second inner sleeve 53, the second sealing ring 54, flexible housing 55
It is formed with through-hole 56,51 middle part of the first sealing ring and the seamless grafting of progress, 52 upper end of the first inner sleeve outside 4 lower end of the second connector
Carry out seamless binding by adhesive and 51 lower end of the first sealing ring, outside 53 upper end of the second inner sleeve with inside the first inner sleeve 52 into
Row is slidably connected, and 54 upper end of the second sealing ring carries out seamless binding by adhesive and 53 lower end of the second inner sleeve, and stretch housing 55
It is arranged outside the first inner sleeve 52 and the second inner sleeve 53, through-hole 56 is through the first sealing ring 51, the first inner sleeve 52, the second inner sleeve
53 and the middle part of the second sealing ring 54, and 56 inside of through-hole carries out grafting with 1 external of valve rod, the housing 55 that stretches is by wearing layer
551, coat body 552, corrosion-resistant coating 553 and protective film 554 form, and 551 rear end of wearing layer passes through adhesive and coat body
552 front ends are bonded, and 552 rear end of coat body carries out be bonded, corrosion-resistant coating with 553 front end of corrosion-resistant coating by adhesive
553 rear ends carried out by adhesive with 554 front end of protective film it is be bonded, outside 551 inner upper end of wearing layer and 52 upper end of the first inner sleeve
Portion carries out grafting, and 554 left end of protective film is provided with sawtooth 501, and sawtooth 501 is provided with two or more, its advantage is that being conducive to
It stretches, wearing layer 551 and corrosion-resistant coating 553 are of uniform thickness, and thickness is 5mm, its advantage is that anti-corrosion and wear-resisting property
Good, 52 internal diameter of the first inner sleeve is 5cm, and its internal diameter is with 53 outer diameter of the second inner sleeve as, its advantage is that being conducive to increase device
Leakproofness, 56 internal diameter of through-hole are 2cm bigger than 1 internal diameter of valve rod, and 56 length of through-hole is 10cm, its advantage is that be conducive to be installed,
Flexible housing 55, the first sealing ring 51 and 54 outer surface of the second sealing ring are coated with one layer of water-repellent paint, and flexible housing 55
Outer surface is provided with multiple folding lines, its advantage is that the volume that can stretch carries out waterproof, wearing layer 551 is mainly by abrasive rubber
It is made, its advantage is that wear-resisting property is strong, 553 epoxy resin composite material of corrosion-resistant coating or polymer composite are made, excellent
Point is anticorrosion, LP blades.
Described in this patent, corrosion-resistant coating 553 refers to be allowed to be isolated with surrounding medium on metal or other material surface, with
A kind of coating of control corrosion rate should have good electrical insulating property, water-resisting property and anticorrosive property, and erosion resistant coating is often by three parts group
At: first layer is the priming paint for being coated in metal surface, and to enhance the cohesive force of metal Yu main coating, the second layer is mainly to apply
Material, common material have coal tar enamel, asphalt, polyethylene adhesive tape, epoxy resin, polyolefin coating etc., in recent years
Foreign countries using it is more be latter two, third layer is binder, to keep certain mechanical strength, in order to avoid transporting and constructing
It is damaged in the process, a series of tests such as impact resistance, antistripping and electrical insulating property, eligible side must be carried out after the completion of coating construction
It can come into operation.
When user wants using this patent, valve rod 1 is passed perpendicularly through 2 middle part of valve deck, the first connector 3 by user
It is separately connected external equipment with the second connector 4,52 lower end of the first inner sleeve is provided in the second inner sleeve 53 being slidably connected,
When 1 slide downward of valve rod, for the second inner sleeve 53 in slide downward, lower end presses against 2 upper end of valve deck, realizes the function of positioning
Can, and the second inner sleeve 53 is slided up and down in 52 inner wall of the first inner sleeve, 51 upper end of the first sealing ring is fixed with outside, and first is close
51 lower end of seal and flexible housing 55 carry out seamless binding, when the first inner sleeve 52 and the second inner sleeve 53 are slided, stretch outer
Set 55 can be stretched and be compressed along the lines of sawtooth 501, and improve leakproofness with the second sealing ring 54, wherein logical
Hole 56 plays the role of connection installation, and wearing layer 551 plays the effect wear-resisting when being slided, and coat body 552 is prevented
Corrosion layer 553 and protective film 554 can protect valve rod 1 well under working condition rugged environment, and have fire prevention, prevent
The functions such as water, dust-proof, anticorrosion increase the service life of whole valve, improve to increase the service life of valve rod 1
Safety, reliability are connected by the first inner sleeve 52 and the second inner sleeve 53 in sliding by being provided with protective device 5 outside valve rod 1
It connects, the second inner sleeve 53 and 54 lower end of the second sealing ring press against on valve deck 2, so that the second inner sleeve 52 is on 52 inner wall of the first inner sleeve
Under slided, realize the effect that protective case is not easy to be stuck, the first sealing ring 51, the second sealing ring 54 and flexible housing 55
Play the role of sealing, solve valve rod during the motion, protective case is easy to block, influence the normal work of valve rod with
And in use, the problem of valve rod is easy to be corroded, is influenced the normal use of valve rod due to leakproofness deficiency, passes through setting
Flexible housing 55 is outside the first inner sleeve 52 and the second inner sleeve 53, the design of corrosion-resistant coating 553 and protective film 554, so that dress
Set more difficult be corroded.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, for
For those skilled in the art, it is clear that the present invention is not limited to the details of the above exemplary embodiments, and without departing substantially from this
In the case where the spirit or essential attributes of utility model, the utility model can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by institute
Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent elements of the claims
All changes are embraced therein.It should not treat any reference in the claims as limiting related right
It is required that.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (6)
1. a kind of threaded stem protective case, including valve rod (1), valve deck (2), the first connector (3) and the second connector (4),
It is characterized in that, further includes protective device (5), valve rod (1) lower end grafting vertical with the progress of valve deck (2) upper end, the valve deck
(2) lower end and the first connector (3) upper end carry out vertical welding, and the second connector (4) lower end and valve rod (1) upper end carry out
Vertical welding, the protective device (5) setting is external in valve rod (1), and the protective device (5) is by the first sealing ring (51), the
One inner sleeve (52), the second inner sleeve (53), the second sealing ring (54), flexible housing (55) and through-hole (56) composition, described first is close
With the seamless grafting of progress outside the second connector (4) lower end in the middle part of seal (51), the first inner sleeve (52) upper end passes through bonding
Agent and the first sealing ring (51) lower end carry out seamless binding, and the second inner sleeve (53) upper end outside and the first inner sleeve (52) are internal
It being slidably connected, the second sealing ring (54) upper end carries out seamless binding by adhesive and the second inner sleeve (53) lower end,
Flexible housing (55) setting is external in the first inner sleeve (52) and the second inner sleeve (53), and the through-hole (56) is close through first
In the middle part of seal (51), the first inner sleeve (52), the second inner sleeve (53) and the second sealing ring (54), and through-hole (56) inside and valve rod
(1) external to carry out grafting, the flexible housing (55) is by wearing layer (551), coat body (552), corrosion-resistant coating (553) and protects
Cuticula (554) composition, wearing layer (551) rear end carried out by adhesive with coat body (552) front end it is be bonded, it is described outside
Set ontology (552) rear end carried out by adhesive with corrosion-resistant coating (553) front end it is be bonded, corrosion-resistant coating (553) rear end lead to
Cross adhesive carried out with protective film (554) front end it is be bonded, outside wearing layer (551) inner upper end and the first inner sleeve (52) upper end
Portion carries out grafting.
2. a kind of threaded stem protective case according to claim 1, which is characterized in that protective film (554) left end is set
It is equipped with sawtooth (501), and sawtooth (501) is provided with two or more.
3. a kind of threaded stem protective case according to claim 1, which is characterized in that the wearing layer (551) and anti-corrosion
Erosion layer (553) is of uniform thickness, and thickness is 5mm.
4. a kind of threaded stem protective case according to claim 1, which is characterized in that the first inner sleeve (52) internal diameter is
5cm, and its internal diameter is as the second inner sleeve (53) outer diameter.
5. a kind of threaded stem protective case according to claim 1, which is characterized in that through-hole (56) internal diameter compares valve rod
(1) the big 2cm of internal diameter, and through-hole (56) length is 10cm.
6. a kind of threaded stem protective case according to claim 1, which is characterized in that the flexible housing (55), first
Sealing ring (51) and the second sealing ring (54) outer surface are coated with one layer of water-repellent paint, and flexible housing (55) outer surface is equal
It is provided with multiple folding lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822078891.9U CN209540180U (en) | 2018-12-12 | 2018-12-12 | A kind of threaded stem protective case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822078891.9U CN209540180U (en) | 2018-12-12 | 2018-12-12 | A kind of threaded stem protective case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209540180U true CN209540180U (en) | 2019-10-25 |
Family
ID=68263915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822078891.9U Expired - Fee Related CN209540180U (en) | 2018-12-12 | 2018-12-12 | A kind of threaded stem protective case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209540180U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032402A (en) * | 2020-09-15 | 2020-12-04 | 国网山东省电力公司平阴县供电公司 | Gate valve rod protective sleeve |
-
2018
- 2018-12-12 CN CN201822078891.9U patent/CN209540180U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032402A (en) * | 2020-09-15 | 2020-12-04 | 国网山东省电力公司平阴县供电公司 | Gate valve rod protective sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191025 Termination date: 20211212 |