CN214534800U - Valve rod protective sleeve of rising stem type gate valve - Google Patents
Valve rod protective sleeve of rising stem type gate valve Download PDFInfo
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- CN214534800U CN214534800U CN202120790631.3U CN202120790631U CN214534800U CN 214534800 U CN214534800 U CN 214534800U CN 202120790631 U CN202120790631 U CN 202120790631U CN 214534800 U CN214534800 U CN 214534800U
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- sleeve
- gate valve
- sleeve body
- rising stem
- top cover
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Abstract
The utility model relates to the technical field of valve spare and accessory parts, and discloses a rising stem type gate valve rod protective sleeve, which comprises a sleeve body, a top cover and a fixing component; the sleeve body is hollow, openings are formed in two ends of the sleeve body, and the top cover and the fixing assembly are respectively arranged at the openings in the two ends of the sleeve body; the fixing assembly comprises a switching sleeve and a magnetic ring arranged on the inner wall of the switching sleeve. The utility model discloses an rising stem formula gate valve rod protective sheath can prevent effectively that external dust, debris from falling on the valve rod, prevents the loss of lubricating grease, reduces maintainer's work load, improves work efficiency, prolongs the life of gate valve. Furthermore, through the technical scheme of the utility model, this rising stem formula gate valve rod protective sheath can not drop along with the rotation of valve hand wheel and valve switch's position to can prevent losing of protective sheath.
Description
Technical Field
The utility model relates to a valve accessories technical field specifically relates to an rising stem formula gate valve rod protective sheath.
Background
The gate valve has the advantages of small fluid resistance, large applicable pressure and temperature range, unlimited medium flowing direction, good sealing performance and the like, and is widely applied to a pipeline system. In the use process of the gate valve, the gate valve is usually in a long-term opening state, and a valve rod of the rising stem type gate valve extends out of a large section of the outer side of the valve body. In the industry of thermal power plants, various water, steam and oil systems exist, and gate valves are often fixed on a plane parallel to a horizontal plane in the systems, so that the maintenance operation is convenient. Due to the fact that more workers exist in a production site, poor light illumination and the like, workers are often knocked or stumbled by exposed valve stems. Meanwhile, lubricating grease needs to be added to a valve rod of the valve, and the outdoor valve often lacks lubricating grease, so that the valve is jammed. Therefore, power plant workers need to manufacture warning devices on the exposed valve rods, and the frequency of greasing the outdoor valves is increased.
In this regard, the following two solutions are generally known in the art. The first method comprises the following steps: and a warning strip is wound on the valve rod. The drawbacks of this approach are: because the valve rod of the rising stem type gate valve is provided with the threads, pollutants such as dust or fibers and the like on the wound warning strip can fall into the threads of the valve rod, and when the valve body is closed, the pollutants can be transferred into the valve body along with the valve rod to damage the valve, so that the valve is blocked, and the service life of the valve is shortened. And the second method comprises the following steps: a section of PVC pipe is sleeved on the valve rod. The drawbacks of this approach are: the valve is lost after the switch is operated, and the PVC pipe needs to be replaced frequently, so that certain waste is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a rising stem formula gate valve rod protective sheath to solve the technical problem who exists among the background art.
In order to achieve the purpose, the utility model provides a rising stem type gate valve rod protective sleeve, which comprises a sleeve body, a top cover and a fixing component; the sleeve body is hollow, openings are formed in two ends of the sleeve body, and the top cover and the fixing assembly are respectively arranged at the openings in the two ends of the sleeve body; the fixing assembly comprises a switching sleeve and a magnetic ring arranged on the inner wall of the switching sleeve.
Through the technical scheme, the sleeve body is connected with the locking nut of the valve hand wheel through the magnetic ring, and the valve rod protective sleeve of the rising stem type gate valve is fixed with the locking nut. The top cap has realized the sealed of whole rising stem formula gate valve rod protective sheath, prevents effectively that external dust, debris from falling on the valve rod, prevents the loss of lubricating grease, reduces maintainer's work load, improves work efficiency, prolongs the life of gate valve. In addition, when the valve hand wheel is rotated, the rising stem type gate valve stem protective sleeve and the locking nut are fixed, so that relative rotation is not generated between the rising stem type gate valve stem protective sleeve and the locking nut, in other words, the rising stem type gate valve stem protective sleeve, the locking nut and the protective sleeve rotate together. Therefore, the valve rod protective sleeve of the rising stem type gate valve cannot fall off along with the rotation of the valve hand wheel and the position of the valve switch, and therefore the protective sleeve can be prevented from being lost.
Furthermore, a threaded hole is formed in the side wall of the adapter sleeve, and the threaded hole penetrates through the side wall of the adapter sleeve along the radial direction of the adapter sleeve.
Further, the fixing component also comprises a screw which is in threaded connection with the threaded hole;
the screw can abut against the outer wall of the sleeve body or be in threaded connection with the sleeve body after being assembled to the threaded hole.
Further, the threaded hole is a T-shaped hole.
Further, the adapter sleeve and the sleeve body meet any one of the following connection modes:
(a) the top cover is in interference fit with the sleeve body;
(b) the top cover is in threaded connection with the sleeve body;
(c) the top cover and the sleeve body are integrally formed.
Further, the air conditioner is provided with a fan,
the top of the top cover is made of transparent and sealed materials;
or the like, or, alternatively,
the top of top cap is equipped with the observation window, observation window department is equipped with transparent glass.
Further, the transparent and sealed material is transparent tempered glass or transparent plastic.
Further, the sleeve body is made of PVC.
Furthermore, an annular groove for installing the magnetic ring is formed in the inner wall of the adapter sleeve.
Furthermore, warning strips are arranged on the circumferential outer wall of the sleeve body.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
Fig. 1 is a front view of one embodiment of the stem guard of the rising stem gate valve of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
fig. 3 is a bottom view of an embodiment of the valve rod protection sleeve of the rising stem gate valve of the present invention.
Description of the reference numerals
1 cover body and 2 top cover
3 adapting sleeve 4 magnetic ring
5 screw 6 warning strip
Detailed Description
The following describes the embodiments of the present invention in detail. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
In the present invention, the use of the terms of orientation such as "upper and lower" in the case where no description is made to the contrary generally means the orientation in the assembled and used state. "inner and outer" refer to the inner and outer contours of the respective component itself.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances for purposes of describing the embodiments of the invention herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The utility model provides a rising stem type gate valve rod protective sleeve, as shown in fig. 1-3, the rising stem type gate valve rod protective sleeve comprises a sleeve body 1, a top cover 2 and a fixing component; the sleeve body 1 is hollow and is provided with openings at two ends, and the top cover 2 and the fixing component are respectively arranged at the openings at two ends of the sleeve body 1; the fixing component comprises a switching sleeve 3 and a magnetic ring 4 arranged on the inner wall of the switching sleeve 3.
Through the technical scheme, the sleeve body 1 is connected with the locking nut of the valve hand wheel through the magnetic ring 4, and the valve rod protective sleeve of the rising stem type gate valve is fixed with the locking nut. The top cover 2 realizes the sealing of the whole rising stem type gate valve rod protective sleeve, effectively prevents external dust and sundries from falling on the valve rod, prevents the loss of lubricating grease, reduces the workload of maintenance personnel, improves the working efficiency and prolongs the service life of the gate valve. In addition, when the valve hand wheel is rotated, the rising stem type gate valve stem protective sleeve and the locking nut are fixed, so that relative rotation is not generated between the rising stem type gate valve stem protective sleeve and the locking nut, in other words, the rising stem type gate valve stem protective sleeve, the locking nut and the protective sleeve rotate together. Therefore, the valve rod protective sleeve of the rising stem type gate valve cannot fall off along with the rotation of the valve hand wheel and the position of the valve switch, and therefore the protective sleeve can be prevented from being lost.
Three specific embodiments of the connection of the adapter sleeve 3 to the sleeve body 1 are provided below:
the first embodiment is as follows: the top cover 2 is in interference fit with the sleeve body 1.
The second embodiment is as follows: the top cover 2 is in threaded connection with the sleeve body 1.
The third concrete implementation mode: the top cover 2 and the sleeve body 1 are integrally formed.
In order to further strengthen the connection between the adapter sleeve 3 and the bushing body 1. A threaded hole is formed in the side wall of the adapter sleeve 3, and the threaded hole penetrates through the side wall of the adapter sleeve 3 along the radial direction of the adapter sleeve 3. The connection between the adapter sleeve 3 and said sleeve body 1 can be further strengthened by fitting fasteners, such as screws, in the threaded holes.
In an alternative embodiment, the fixing assembly further comprises a screw 5, and the screw 5 is in threaded connection with the threaded hole; after being assembled to the threaded hole, the screw 5 can abut against the outer wall of the sleeve body 1 or be in threaded connection with the sleeve body 1.
In the embodiment of "being connected with the sleeve body 1 by screw thread", a screw thread groove or a screw thread hole adapted to the screw 5 is required to be arranged on the position of the sleeve body 1 corresponding to the screw hole. Preferably, a threaded groove is provided, which prevents the insertion of screws into the sleeve body 1, on the one hand enhancing the tightness of the sleeve body 1, and on the other hand preventing the contact of the stem with the screws 5.
In a preferred embodiment, a T-shaped hole is provided for the threaded hole of the adapter sleeve 3. In this way, after the screw 5 is fitted to the threaded hole, the head of the screw 5 can be located in the T-shaped hole to maintain the adapter sleeve 3 smooth and flat.
In order to facilitate the observation of the length of the valve rod in the sleeve body 1, in an alternative embodiment, the top of the top cover 2 is made of a transparent and sealed material, such as transparent tempered glass, transparent plastic, and the like, in another alternative embodiment, an observation window is arranged at the top of the top cover 2, and the observation window is provided with the transparent glass or the transparent plastic.
Furthermore, a warning strip 6 is arranged on the circumferential outer wall of the sleeve body 1. The striking yellow-black warning color sprayed on the warning strip 6 aims to remind workers, improve the warning consciousness of the workers and avoid personal safety accidents.
In an alternative embodiment, the sheath 1 is made of PVC. Preferably, the sheath body 1 is made of transparent PVC. Therefore, the state of the valve rod in the sleeve body 1 can be observed more conveniently.
As mentioned above, the magnetic ring 4 is disposed on the inner wall of the adapter sleeve 3. The arrangement mode can be based on the friction force between the magnetic ring 4 and the adapter sleeve 3, and can also be based on the magnetic force between the magnetic ring 4 and the adapter sleeve 3.
In an alternative embodiment, the adapter sleeve 3 is made of a non-metallic material, for example plastic, and the magnet ring 4 is connected to the adapter sleeve 3 on the basis of friction. Further, in order to prevent the magnetic ring 4 from falling off, an annular groove for installing the magnetic ring 4 may be provided on the inner wall of the adapter sleeve 3.
In another alternative embodiment, the adapter sleeve 3 is made of a metal material, and the magnetic ring 4 is connected to the adapter sleeve 3 based on magnetic force. Further, in order to prevent the magnetic ring 4 from being sucked on the lock nut and separated from the adapter sleeve 3 after the rising stem type gate valve stem protection sleeve is removed, an annular groove for installing the magnetic ring 4 may be provided on the inner wall of the adapter sleeve 3.
In addition, the shape of the outer annular surface is the same as the shape of the inner wall of the adapter sleeve 3, and the shape of the inner annular surface is the same as the shape of the lock nut. Therefore, in the technical scheme that the magnetic ring 4 is connected with the adapter sleeve 3 based on friction force or magnetic force without an annular groove, the advantages are that: the magnetic ring 4 can be detachably connected with the adapter sleeve 3, so that the correspondingly matched magnetic ring 4 can be replaced according to tightening nuts with different shapes.
The above detailed description describes the preferred embodiments of the present invention, but the present invention is not limited to the details of the above embodiments, and the technical idea of the present invention can be within the scope of the present invention, and can be right to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.
In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.
Claims (10)
1. The rising stem type gate valve rod protective sleeve is characterized by comprising a sleeve body (1), a top cover (2) and a fixing component; the sleeve body (1) is hollow, openings are formed in two ends of the sleeve body, and the top cover (2) and the fixing component are respectively arranged at the openings in the two ends of the sleeve body (1); the fixing component comprises a switching sleeve (3) and a magnetic ring (4) arranged on the inner wall of the switching sleeve (3).
2. Rising-stem gate valve stem protection sleeve according to claim 1, characterized in that the adapter sleeve (3) is provided with a threaded hole on its side wall, which threaded hole penetrates the adapter sleeve (3) in the radial direction along the adapter sleeve (3).
3. Rising stem gate valve stem protector according to claim 2, characterized in that the fixation assembly further comprises a screw (5), the screw (5) being in threaded connection with the threaded hole;
after being assembled to the threaded hole, the screw (5) can abut against the outer wall of the sleeve body (1) or be in threaded connection with the sleeve body (1).
4. A rising stem gate valve stem protector according to claim 3, wherein the threaded bore is a T-shaped bore.
5. The rising stem type gate valve stem protective sleeve according to claim 1, wherein the adapter sleeve (3) and the sleeve body (1) meet any one of the following connection modes:
(a) the top cover (2) is in interference fit with the sleeve body (1);
(b) the top cover (2) is in threaded connection with the sleeve body (1);
(c) the top cover (2) and the sleeve body (1) are integrally formed.
6. The rising stem gate valve stem grommet of claim 1, wherein:
the top of the top cover (2) is made of transparent and sealed materials;
or the like, or, alternatively,
the top of top cap (2) is equipped with the observation window, observation window department is equipped with transparent glass.
7. An rising stem gate valve stem shroud according to claim 6, wherein the transparent and sealing material is transparent toughened glass or transparent plastic.
8. Rising stem gate valve stem grommet according to claim 1, characterized in that the grommet body (1) is made of PVC.
9. Rising stem gate valve stem protector according to claim 1, characterized in that the inner wall of the adapter sleeve (3) is provided with an annular groove for mounting the magnetic ring (4).
10. An open-bar gate valve stem protective sleeve according to any one of claims 1-9, characterized in that the circumferential outer wall of the sleeve body (1) is provided with a warning strip (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120790631.3U CN214534800U (en) | 2021-04-16 | 2021-04-16 | Valve rod protective sleeve of rising stem type gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120790631.3U CN214534800U (en) | 2021-04-16 | 2021-04-16 | Valve rod protective sleeve of rising stem type gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214534800U true CN214534800U (en) | 2021-10-29 |
Family
ID=78273616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120790631.3U Active CN214534800U (en) | 2021-04-16 | 2021-04-16 | Valve rod protective sleeve of rising stem type gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214534800U (en) |
-
2021
- 2021-04-16 CN CN202120790631.3U patent/CN214534800U/en active Active
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