CN210423937U - Valve opening indicating device - Google Patents
Valve opening indicating device Download PDFInfo
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- CN210423937U CN210423937U CN201921261985.8U CN201921261985U CN210423937U CN 210423937 U CN210423937 U CN 210423937U CN 201921261985 U CN201921261985 U CN 201921261985U CN 210423937 U CN210423937 U CN 210423937U
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- upper cover
- valve
- cover type
- sleeve
- opening
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Abstract
The utility model discloses a valve opening indicating device, which comprises an upper cover type protective sleeve with an opening at the upper part and an opening at the lower part, a guide sleeve in a cylinder shape and an indicating rod; the opening is sleeved on the outer rod section of the valve rod downwards and is fixedly connected with the valve rod, the upper cover type protective sleeve can synchronously rotate along with the valve rod, and the outer circumferential surface of the upper cover type protective sleeve is provided with indexing scales along the annular direction; the bottom of the guide sleeve is fixedly connected to the valve cover, and the top of the guide sleeve is slidably sleeved outside the upper cover type protective sleeve; a closed cavity is formed between the guide sleeve and the upper cover type protective sleeve, and an external rod section of the valve rod is arranged in the closed cavity; a vertical guide hole is formed in the guide sleeve, and an observation hole is formed in the guide sleeve; the upper portion of indicator arm is interior barrel, and its threaded connection is on the inner wall of upper cover formula protective sheath, and the lower part of indicator arm is vertical scale, is equipped with vertical scale on the vertical scale, and the lower extreme of vertical scale stretches into the closed chamber outside from vertical guiding hole. The utility model discloses the aperture is instructed accurately, and indicating device can be effectively protected.
Description
Technical Field
The utility model relates to an aperture indicating device, concretely relates to valve aperture indicating device.
Background
Gate valves and stop valves are widely used in various industrial fields, and are opened and closed by a valve opening and closing member including a gate plate and a valve flap, which forms a sealing pair with a valve seat, so as to connect or cut off media in a pipeline.
In order to visually reflect the actual position of the valve closure member, an opening indication needs to be set for the valve; as shown in fig. 1, in a commonly used opening indicating device, an opening pointer 7 is installed on an outer rod section of a valve rod 2 through threaded fit, an axial guide rod 8 is arranged for the opening pointer 7, when the valve rod 2 rotates, the opening pointer 7 moves up and down along the axial direction of the valve rod 2, and the position of an opening and closing member is reflected by the indicating position of the opening pointer, so that opening indication is realized.
This construction mainly has the following problems in practical use:
firstly, the opening pointer is not protected at all, so that the opening pointer is easily touched by the outside to cause bending damage or falling off;
secondly, because the external valve rod is exposed, the fine thread engaged with the opening pointer is easily affected by environmental factors such as dust, rainwater and the like to form scale, rust and even be stuck;
and thirdly, the opening indication is not accurate enough.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an aperture instruction is accurate, thereby can obtain the valve aperture indicating device who effectively protects and guarantee normal use.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a valve opening indicating device, the valve opening indicating device comprising:
the upper cover type protective sleeve is provided with an opening at the upper part and an opening at the lower part, the opening is downwards sleeved on the external rod section of the valve rod and is fixedly connected with the valve rod, the upper cover type protective sleeve can synchronously rotate along with the valve rod, and the outer circumferential surface of the upper cover type protective sleeve is annularly provided with indexing scales;
the bottom of the guide sleeve is fixedly connected to the valve cover, and the top of the guide sleeve is slidably sleeved outside the upper cover type protective sleeve; a closed cavity is formed between the guide sleeve and the upper cover type protective sleeve, and an external rod section of the valve rod is arranged in the closed cavity; a vertical guide hole is formed in the guide sleeve, an observation hole is formed in the guide sleeve, and the graduation scale on the protective sleeve can be observed through the observation hole;
the upper portion of indicator lever is interior barrel, and its threaded connection is on the inner wall of upper cover formula protective sheath, and the lower part of indicator lever is vertical scale, is equipped with vertical scale on the vertical scale, and the lower extreme of vertical scale stretches into the closed chamber outside from vertical guiding hole.
In one embodiment of the invention, the diameter of the lower opening is larger than the diameter of the upper opening.
The utility model discloses an in the embodiment, be equipped with the internal thread on the inner wall of upper cover formula protective sheath, be equipped with the external screw thread on the outer wall of barrel in the pilot lever upper portion, the barrel is uncovered from the lower part and is stretched into the inside inner wall threaded connection with the upper cover formula protective sheath of upper cover formula protective sheath in the pilot lever upper portion.
In an embodiment of the present invention, the top of the guiding sleeve is a large diameter cylinder, the bottom of the guiding sleeve is a small diameter cylinder, an annular platform is arranged between the large diameter cylinder and the small diameter cylinder, the bottom of the small diameter cylinder is fixedly connected to the valve cover, the large diameter cylinder is sleeved outside the upper cover type protecting sleeve, and the upper cover type protecting sleeve can slide along the inner wall of the large diameter cylinder under the driving of the valve rod; the vertical guide hole is arranged on the annular platform, and the observation hole is arranged on the side wall of the large-diameter cylinder body.
The utility model discloses an in the embodiment, the vertical scale of pilot lever lower part is radial symmetry and sets up to a pair of, corresponds for a pair of vertical scale on the uide bushing and sets up a pair of vertical guiding hole.
Through the technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses set up enclosed construction at the outside pole section of valve rod, made whole indicating device effectively protect, in the transportation, close the valve entirely, make vertical scale be in upper cover formula protective sheath, effectively avoid the accident to collide with the damage.
2. The utility model discloses well screw-thread fit's transmission structure obtains sealing, has guaranteed that its transmission structure uses steadily for a long time.
3. The utility model discloses utilize vertical scale and graduation scale to combine together, improved the precision that the valve aperture instructed greatly.
4. The utility model discloses simple structure, easy to carry out.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a conventional valve opening indicating device;
fig. 2 is a schematic structural view of the valve opening indicating device of the present invention;
FIG. 3 is a schematic structural view of the upper cover type protective sheath of the present invention;
FIG. 4 is a schematic structural view of the indicating rod of the present invention;
FIG. 5 is a schematic view of a part of the structure of the guide sleeve of the present invention;
the corresponding part names indicated by the numbers and letters in the drawings:
2. valve rod 7, opening pointer 8 and axial guide rod
10. The device comprises an upper cover type protective sleeve 11, an upper opening 12, a lower opening 13, an index scale 20, a guide sleeve 21, a large-diameter cylinder 22, a small-diameter cylinder 23, an annular platform 24, a vertical guide hole 25, an observation hole 30, an indication rod 31, an inner cylinder 32, a vertical scale 33, a vertical scale 40, a valve rod 41, an outer rod section 50, a closed cavity 60, a valve cover 70 and a hand wheel.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.
Referring to fig. 2 to 5, the present invention discloses a valve opening indicating device, which comprises an upper cover type protecting sleeve 10 with an upper opening 11 and a lower opening 12, a guiding sleeve 20 in a barrel shape, and an indicating rod 30.
An upper opening 11 of the upper cover type protective sleeve 10 is downwards sleeved on an external rod section 41 of the valve rod 40 and is fixedly connected with the valve rod 40, the upper cover type protective sleeve 10 can synchronously rotate along with the valve rod 40, and the outer circumferential surface of the upper cover type protective sleeve 10 is annularly provided with an index scale 13; the diameter of the lower opening 12 is larger than the diameter of the upper opening 11.
The bottom of the guide sleeve 20 is fixedly connected to the valve cover 60, and the top of the guide sleeve 20 is slidably sleeved outside the upper cover type protective sleeve 10; a closed cavity 50 is formed between the guide sleeve 20 and the upper cover type protective sleeve 10, and the outer rod section 41 of the valve rod 40 is arranged in the closed cavity 50; the guide sleeve 20 is provided with a vertical guide hole 24, the guide sleeve 20 is provided with an observation hole 25, and the graduation scale 13 on the upper cover type protective sleeve 10 can be observed through the observation hole 25.
The upper portion of the indication rod 30 is an inner cylinder 31 which is in threaded connection with the inner wall of the upper cover type protective sleeve 10, the lower portion of the indication rod 30 is a vertical scale 32, vertical scales 33 are arranged on the vertical scale 32, and the lower end of the vertical scale 32 extends into the outside of the closed cavity 50 from the vertical guide hole 24.
Furthermore, an inner thread is arranged on the inner wall of the upper cover type protective sleeve 10, an outer thread is arranged on the outer wall of the cylinder 31 in the upper portion of the indicating rod 30, and the cylinder 31 in the upper portion of the indicating rod 30 extends into the upper cover type protective sleeve 10 from the lower opening 12 and is in threaded connection with the inner wall of the upper cover type protective sleeve 10.
Further, the top of the guide sleeve 20 is a large-diameter cylinder 21, the bottom of the guide sleeve 20 is a small-diameter cylinder 22, the diameter of the large-diameter cylinder 21 is larger than that of the small-diameter cylinder 22, an annular platform 23 is arranged between the large-diameter cylinder 21 and the small-diameter cylinder 22, the bottom of the small-diameter cylinder 22 is fixedly connected to the valve cover 60, the large-diameter cylinder 21 is sleeved outside the upper cover type protective sleeve 10, and the upper cover type protective sleeve 10 can slide along the inner wall of the large-diameter cylinder 21 under the driving of the valve rod 40; vertical guide holes 24 are provided on the annular platform 23, and observation holes 25 are provided on the side wall of the large-diameter cylinder 21.
Further, in order to facilitate observation in different directions, the vertical scales 32 at the lower part of the indicating rod 30 are symmetrically arranged in pairs in the radial direction, the guide sleeve 20 is provided with a pair of vertical guide holes 24 corresponding to the pair of vertical scales 32, and the scale on the vertical scale 32 of the indicating rod is set according to the relationship among the full stroke of the valve rod, the thread pitch of the valve rod and the thread pitch at the upper part of the indicating rod 30; of course, the number of the vertical scale 32 and the vertical guide hole 24 can also be set according to actual needs, and details are not repeated here.
When the device is assembled, the valve is in a fully closed state, the upper cover type protective sleeve 10 is rotated, the vertical scale 32 on the indicating rod 30 penetrates through the vertical guide hole 24 on the guide sleeve 20, the bottom end face of the vertical scale 32 is flush with the plane of the annular platform 23 on the guide sleeve 20, the guide sleeve 20 is fixedly connected with the valve cover 60 in a mechanical mode, and the upper cover type protective sleeve 10 is fixedly connected with the valve rod 40 in a mechanical mode to complete the assembly of the indicating device.
When the valve is opened, the hand wheel 70 is rotated anticlockwise, the upper cover type protective sleeve 10 rotates along with the valve rod 40, the indicating rod 30 descends through the thread effect, scales on the indicating rod 30 can be seen, and the numerical value of the scales is increased continuously; the scale of the indicator stem 30 is shown as 100 when the valve is fully open.
When the valve is closed, the hand wheel 70 is rotated clockwise, the upper cover type protective sleeve 10 rotates along with the valve rod 40, the indicating rod 30 is lifted through the thread effect, the scales on the indicating rod 30 can be seen, and the numerical value is continuously reduced; when the valve is fully closed, the scale on the indicator stem 30 shows 0.
When the valve is in the half-open position, the opening degree value of the valve is obtained by combining the scales on the indicating rod 30 and the scales on the upper cover type protective sleeve 10, and the purpose of visually displaying the position of the opening and closing piece is achieved.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. Valve opening indicating device, its characterized in that, valve opening indicating device includes:
the upper cover type protective sleeve is provided with an opening at the upper part and an opening at the lower part, the opening is downwards sleeved on the external rod section of the valve rod and is fixedly connected with the valve rod, the upper cover type protective sleeve can synchronously rotate along with the valve rod, and the outer circumferential surface of the upper cover type protective sleeve is annularly provided with indexing scales;
the bottom of the guide sleeve is fixedly connected to the valve cover, and the top of the guide sleeve is slidably sleeved outside the upper cover type protective sleeve; a closed cavity is formed between the guide sleeve and the upper cover type protective sleeve, and an external rod section of the valve rod is arranged in the closed cavity; a vertical guide hole is formed in the guide sleeve, an observation hole is formed in the guide sleeve, and the graduation scale on the protective sleeve can be observed through the observation hole;
the upper portion of indicator lever is interior barrel, and its threaded connection is on the inner wall of upper cover formula protective sheath, and the lower part of indicator lever is vertical scale, is equipped with vertical scale on the vertical scale, and the lower extreme of vertical scale stretches into the closed chamber outside from vertical guiding hole.
2. The valve opening indicating device of claim 1, wherein the diameter of the lower opening is larger than the diameter of the upper opening.
3. The valve opening indicating device according to claim 1, wherein the inner wall of the upper cover type protecting sleeve is provided with internal threads, the outer wall of the inner cylinder body at the upper part of the indicating rod is provided with external threads, and the inner cylinder body at the upper part of the indicating rod extends into the upper cover type protecting sleeve from the lower opening to be in threaded connection with the inner wall of the upper cover type protecting sleeve.
4. The valve opening indicating device according to claim 1, wherein the top of the guide sleeve is a large-diameter cylinder, the bottom of the guide sleeve is a small-diameter cylinder, an annular platform is arranged between the large-diameter cylinder and the small-diameter cylinder, the bottom of the small-diameter cylinder is fixedly connected to the valve cover, the large-diameter cylinder is sleeved outside the upper cover type protective sleeve, and the upper cover type protective sleeve can slide along the inner wall of the large-diameter cylinder under the driving of the valve rod; the vertical guide hole is arranged on the annular platform, and the observation hole is arranged on the side wall of the large-diameter cylinder body.
5. The valve opening indicating device of claim 1, wherein the vertical scales at the lower part of the indicating rod are symmetrically arranged in a pair in the radial direction, and a pair of vertical guide holes is correspondingly arranged on the guide sleeve for the pair of vertical scales.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921261985.8U CN210423937U (en) | 2019-08-06 | 2019-08-06 | Valve opening indicating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921261985.8U CN210423937U (en) | 2019-08-06 | 2019-08-06 | Valve opening indicating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210423937U true CN210423937U (en) | 2020-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921261985.8U Active CN210423937U (en) | 2019-08-06 | 2019-08-06 | Valve opening indicating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210423937U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375111A (en) * | 2019-08-06 | 2019-10-25 | 上海凯工阀门股份有限公司 | Valve opening instruction device |
-
2019
- 2019-08-06 CN CN201921261985.8U patent/CN210423937U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375111A (en) * | 2019-08-06 | 2019-10-25 | 上海凯工阀门股份有限公司 | Valve opening instruction device |
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