CN213512326U - Valve rod extension rod - Google Patents
Valve rod extension rod Download PDFInfo
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- CN213512326U CN213512326U CN202022021295.4U CN202022021295U CN213512326U CN 213512326 U CN213512326 U CN 213512326U CN 202022021295 U CN202022021295 U CN 202022021295U CN 213512326 U CN213512326 U CN 213512326U
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- valve
- rod
- extension rod
- valve rod
- head
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Abstract
The utility model relates to a valve rod extension rod which is an integral casting component and comprises a valve rod extension rod head, a valve rod extension rod body and a valve rod extension rod cap; one end of the valve rod extension rod body is connected with the valve rod extension rod head, and the other end of the valve rod extension rod body is connected with the valve rod extension rod cap; two sides of the valve rod extension rod head are provided with symmetrical locking grooves, the locking grooves are rectangular, the height of the locking grooves is 4/5 which is about the height of the valve rod extension rod head, and the width of the locking grooves is 1/3 which is about the width of the valve rod extension rod head; the bottom of the valve rod extension rod cap is provided with a valve rod head matching square hole, and four corners of the valve rod head matching square hole are provided with clearance groove holes; the outer side surface of the valve rod extension rod cap is provided with an inverted U-shaped bolt boss, the outer side surface of the bolt boss is perpendicular to the bottom surface of the valve rod extension rod cap, the bolt boss is provided with a threaded hole, and the average thickness of the bolt boss is 1/2 of the wall thickness of a square hole matched with the valve rod head.
Description
Technical Field
The utility model relates to a valve field of underground pipe network, concretely relates to valve rod extension rod.
Background
In pipeline conveying systems for urban water supply, drainage, heat supply, gas supply, long-distance petroleum and natural gas conveying and the like, valve control is needed to ensure the safe operation of pipelines and timely stop the expansion of accidents when accidents occur. The valve rod extension rod is a transmission part of the valve and is arranged on the valve, the top of the valve rod extension rod is matched with a valve hand wheel or a key, and the bottom of the valve rod extension rod is matched with a valve rod head. Through using the valve rod extension rod, can directly bury the valve underground when the construction, need not build the cellar for storing things, reduced road surface excavation area, minimum well room can keep the road pleasing to the eye, has reduced the construction degree of difficulty, has reduced engineering cost, has long-term use and does not reveal, advantage such as non-maintaining.
The first prior art is as follows: the integrated valve rod extension rod is formed by casting and comprises a valve rod extension rod head, a valve rod extension rod body and a valve rod extension rod cap.
The valve rod extension rod head and the valve rod extension rod cap are matching and connecting mechanisms of the valve rod extension rod, a valve and a hand wheel or a key, and the size of the valve rod extension rod is designed according to the valve industry standard and the size of a matching piece of the valve rod extension rod. The valve rod extension rod head is of a quadrangular boss structure, and the cross section of the valve rod extension rod head is square; the valve rod extension rod body is positioned in the middle and connected with the valve rod extension rod head and the valve rod extension rod cap, the cross section of the valve rod extension rod body is circular or square, and the length of the valve rod extension rod body determines the overall length of the valve rod extension rod; the bottom of the valve rod extension rod cap is provided with a valve rod head matching square hole, the outer contour is a quadrangular frustum or a circular truncated cone, and the side surface is provided with a threaded hole for installing a fastening bolt. When the valve rod extension rod is matched with a valve, the valve rod extension rod cap is sleeved on a valve rod head of the valve and fixed by a bolt, the valve rod extension rod and the valve are together buried underground, and then the valve rod extension rod head is inserted into a square hole of a valve hand wheel and fixed by the bolt.
The first prior art has the following defects:
1. the valve hand wheel or the key is fixed on the valve rod extension rod head by a bolt, and the side surface of the valve rod extension rod head is a plane, so that when the valve is twisted, the bolt and the valve rod extension rod head easily slide relatively to influence the opening and closing operation of the valve.
2. For anticorrosive and pleasing to the eye, the valve rod extension rod usually need carry out the surperficial powder spraying, and powder piles up easily on four corners of valve rod extension rod cap cooperation square hole in the spraying process, causes valve rod extension rod and valve rod head cooperation difficulty.
3. If the wall thickness of the valve rod extension rod cap is too thick, the product has heavy weight and high cost, and casting defects are easy to generate; if the wall thickness is too thin, the depth of the threaded hole on the side surface is shallow, so that the number of meshing teeth of the bolt is small, and the fastening bolt is easy to loosen after the valve is opened and closed for multiple times.
4. The side surface of the valve rod extension rod cap is an inclined plane, and a threaded hole is inconvenient to process and easy to deviate.
SUMMERY OF THE UTILITY MODEL
To the defect that exists among the prior art, the utility model aims to provide a valve rod extension rod aims at solving following problem:
1. the problem of the matching sliding of the valve rod extension rod head and the valve hand wheel is solved; 2. the problem of assembly of the valve rod extension rod caused by powder coating; 3. the depth of a threaded hole in the side surface of a valve rod extension rod cap is shallow, and the machining of the threaded hole is easy to deviate.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
a valve stem extension rod that is a unitary cast member, comprising: a valve rod extension rod head 1, a valve rod extension rod body 2 and a valve rod extension rod cap 3; one end of the valve rod extension rod body 2 is connected with the valve rod extension rod head 1, and the other end of the valve rod extension rod body 2 is connected with the valve rod extension rod cap 3;
the two sides of the valve rod extension rod head 1 are provided with symmetrical locking grooves 4, the locking grooves 4 are rectangular, the height of the locking grooves 4 is 4/5 about the height of the valve rod extension rod head 1, and the width of the locking grooves 4 is 1/3 about the width of the valve rod extension rod head 1; the bottom of the valve rod extension rod cap 3 is provided with a valve rod head matching square hole 7, and four corners of the valve rod head matching square hole 7 are provided with clearance groove holes 8; the outer side surface of the valve rod extension rod cap 3 is provided with an inverted U-shaped bolt boss 5, the outer side surface of the bolt boss 5 is perpendicular to the bottom surface of the valve rod extension rod cap 3, the bolt boss 5 is provided with a threaded hole 6, and the average thickness of the bolt boss 5 is 1/2 of the wall thickness of a valve rod head matching square hole 7.
On the basis of the scheme, the orthographic projection shape of the valve rod extension rod head 1 is trapezoidal, and the cross section shape is I-shaped.
On the basis of the above scheme, the valve rod extension rod body 2 is a cylindrical rod body, and along with the increase of the length of the valve rod extension rod body, the average diameter of the valve rod extension rod body 2 is gradually increased, and the distance from the bottom surface of the valve rod extension rod head 1 to the bottom surface of the valve rod extension rod cap 3 is the actual extension length of the valve rod extension rod.
On the basis of the scheme, the cross section of the valve rod extension rod cap 3 is in a square frame shape.
On the basis of the scheme, when the valve rod extension rod is matched with the valve, the valve rod extension rod cap 3 is arranged on a valve rod head 10 of the valve and is locked by a fastening bolt 9; the valve hand wheel 11 is arranged on the valve rod extension rod head 1, and the fastening bolt 9 is screwed into the locking groove 4 to complete the matching installation.
The utility model has the advantages that:
1. the side surface of the valve rod extension rod head is provided with symmetrical locking grooves, so that the relative sliding of the valve rod extension rod and a valve hand wheel is avoided, and the stability of the matching of the valve rod extension rod and a valve is improved.
2. The bottom of the valve rod extension rod cap is provided with a valve rod head matching square hole, and the four corners of the valve rod head matching square hole are designed by adopting clearance groove holes, so that the assembly problem caused by powder coating is eliminated, the weight of partial products is reduced, the wall thickness of the inner cavity is balanced, the hot spot is avoided, and the casting defect of the products is reduced.
3. The side face of the valve rod extension rod cap is provided with the bolt boss, so that under the premise of not increasing weight basically, the depth of a threaded hole is increased, the locking force of the fastening bolt is improved, and meanwhile, the outer side face of the bolt boss is perpendicular to the bottom face of the valve rod extension rod, so that the threaded hole can be conveniently machined and aligned.
Drawings
The utility model discloses there is following figure:
FIG. 1 is a schematic view of the valve stem extension rod of the present invention;
FIG. 2 is a transverse cross-sectional view of the stem extension stem head;
FIG. 3 is a transverse cross-sectional view of the valve stem extension stem cap;
FIG. 4 is a transverse cross-sectional view of the valve stem extension stem body;
FIG. 5-1 is a first longitudinal cross-sectional view of FIG. 1;
FIG. 5-2 is a longitudinal cross-sectional view II of FIG. 1;
FIG. 6-1 is a front perspective view of the valve stem extension rod;
FIG. 6-2 is an inverted perspective view of the valve stem extension rod;
FIG. 7 is a schematic diagram of the valve stem extension rod in cooperation with a valve;
FIG. 8 is a cross-sectional view of FIG. 7;
in the figure: 1. the valve rod extension rod head 2, the valve rod extension rod body 3, the valve rod extension rod cap 4, the locking groove 5, the bolt boss 6, the threaded hole 7, the valve rod head matching square hole 8, the clearance groove hole 9, the fastening bolt 10, the valve rod head 11 and the valve hand wheel.
Detailed Description
The present invention will be described in further detail with reference to the accompanying fig. 1 to 8.
As shown in fig. 1, 7 and 8, the valve stem extension rod is an integral structure, including: a valve rod extension rod head 1, a valve rod extension rod body 2 and a valve rod extension rod cap 3; one end of the valve rod extension rod body 2 is connected with the valve rod extension rod head 1, and the other end of the valve rod extension rod body 2 is connected with the valve rod extension rod cap 3;
the two sides of the valve rod extension rod head 1 are provided with symmetrical locking grooves 4, the locking grooves 4 are rectangular, the height of the locking grooves 4 is 4/5 about the height of the valve rod extension rod head 1, and the width of the locking grooves 4 is 1/3 about the width of the valve rod extension rod head 1; the bottom of the valve rod extension rod cap 3 is provided with a valve rod head matching square hole 7, and four corners of the valve rod head matching square hole 7 are provided with clearance groove holes 8; the outer side surface of the valve rod extension rod cap 3 is provided with an inverted U-shaped bolt boss 5, the outer side surface of the bolt boss 5 is perpendicular to the bottom surface of the valve rod extension rod cap 3, the bolt boss 5 is provided with a threaded hole 6, and the average thickness of the bolt boss 5 is 1/2 of the wall thickness of a valve rod head matching square hole 7.
On the basis of the scheme, the orthographic projection shape of the valve rod extension rod head 1 is trapezoidal, and the cross section shape is I-shaped.
On the basis of the above scheme, the valve rod extension rod body 2 is a cylindrical rod body, and along with the increase of the length of the valve rod extension rod body, the average diameter of the valve rod extension rod body 2 is gradually increased, and the distance from the bottom surface of the valve rod extension rod head 1 to the bottom surface of the valve rod extension rod cap 3 is the actual extension length of the valve rod extension rod.
On the basis of the scheme, the cross section of the valve rod extension rod cap 3 is in a square frame shape.
On the basis of the scheme, when the valve rod extension rod is matched with the valve, the valve rod extension rod cap 3 is arranged on a valve rod head 10 of the valve and is locked by a fastening bolt 9; the valve hand wheel 11 is arranged on the valve rod extension rod head 1, and the fastening bolt 9 is screwed into the locking groove 4 to complete the matching installation.
The utility model discloses a technical key point with want the guard point:
the valve rod extension rod head side is equipped with the rectangle locking recess of symmetry, makes fastening bolt can twist the inslot, when preventing to twist reverse, and valve rod extension rod and valve hand wheel relative slip have improved complex stability, are the utility model discloses a main technical point.
Valve rod head cooperation square hole four corners sets up conical clearance slotted hole, and when the product carried out surface powder spraying, during accumulational spraying material can get into clearance slotted hole to the valve rod extension rod and the valve rod head assembly interference problem have been avoided.
And 1/2 bolt bosses with the average thickness equal to the wall thickness of the square holes matched with the valve rod head are additionally arranged on the side surface of the valve rod extension rod cap, and the outer side surfaces of the bolt bosses are vertical to the bottom surface of the valve rod extension rod cap.
Those not described in detail in this specification are within the skill of the art.
Claims (5)
1. A valve stem extension pole, wherein the valve stem extension pole is a unitary cast component comprising: a valve rod extension rod head (1), a valve rod extension rod body (2) and a valve rod extension rod cap (3); one end of the valve rod extension rod body (2) is connected with the valve rod extension rod head (1), and the other end of the valve rod extension rod body (2) is connected with the valve rod extension rod cap (3);
symmetrical locking grooves (4) are formed in two sides of the valve rod extending rod head (1), the locking grooves (4) are rectangular, the height of each locking groove (4) is 4/5 of the height of the valve rod extending rod head (1), and the width of each locking groove (4) is 1/3 of the width of the valve rod extending rod head (1); the bottom of the valve rod extension rod cap (3) is provided with a valve rod head matching square hole (7), and four corners of the valve rod head matching square hole (7) are provided with clearance groove holes (8); the valve rod extension rod cap is characterized in that an inverted U-shaped bolt boss (5) is arranged on the outer side face of the valve rod extension rod cap (3), the outer side face of the bolt boss (5) is perpendicular to the bottom face of the valve rod extension rod cap (3), a threaded hole (6) is formed in the bolt boss (5), and the average thickness of the bolt boss (5) is 1/2 of the wall thickness of a valve rod head matching square hole (7).
2. The valve stem extension rod of claim 1, wherein the valve stem extension rod head (1) has an orthographic shape of a trapezoid and a cross-sectional shape of an i-shape.
3. The valve stem extension rod of claim 1, wherein the valve stem extension rod body (2) is a cylindrical rod body, the average diameter of the valve stem extension rod body (2) gradually increases as the length of the valve stem extension rod increases, and the distance from the bottom surface of the valve stem extension rod head (1) to the bottom surface of the valve stem extension rod cap (3) is the actual extension length of the valve stem extension rod.
4. The valve stem extension rod of claim 1, wherein the valve stem extension rod cap (3) is square frame shaped in cross-section.
5. The valve stem extension rod of claim 1, wherein when the valve stem extension rod is matched with a valve, the valve stem extension rod cap (3) is arranged on a valve stem head (10) of the valve and is locked by a fastening bolt (9); the valve hand wheel (11) is arranged on the valve rod extension rod head (1), and the fastening bolt (9) is screwed into the locking groove (4) to complete the matching installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022021295.4U CN213512326U (en) | 2020-09-16 | 2020-09-16 | Valve rod extension rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022021295.4U CN213512326U (en) | 2020-09-16 | 2020-09-16 | Valve rod extension rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213512326U true CN213512326U (en) | 2021-06-22 |
Family
ID=76447188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022021295.4U Active CN213512326U (en) | 2020-09-16 | 2020-09-16 | Valve rod extension rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213512326U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114046379A (en) * | 2021-10-18 | 2022-02-15 | 上海沪东造船阀门有限公司 | Subsea valve extension operation device and assembly operation method |
-
2020
- 2020-09-16 CN CN202022021295.4U patent/CN213512326U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114046379A (en) * | 2021-10-18 | 2022-02-15 | 上海沪东造船阀门有限公司 | Subsea valve extension operation device and assembly operation method |
| CN114046379B (en) * | 2021-10-18 | 2024-04-23 | 上海沪东造船阀门有限公司 | Subsea valve extension operating device and assembly operating method |
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