CN213731105U - Grinding device for valve core of stop valve - Google Patents
Grinding device for valve core of stop valve Download PDFInfo
- Publication number
- CN213731105U CN213731105U CN202021994446.8U CN202021994446U CN213731105U CN 213731105 U CN213731105 U CN 213731105U CN 202021994446 U CN202021994446 U CN 202021994446U CN 213731105 U CN213731105 U CN 213731105U
- Authority
- CN
- China
- Prior art keywords
- grinding
- grinding head
- head
- rod
- valve
- 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
- 238000000034 method Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model relates to a grinding device for a valve core of a stop valve, which comprises an electric drill, a grinding rod, a grinding head and a centering device; one end of the grinding rod is a power input end, the other end of the grinding rod is a power output end, the power input end is connected with an electric drill, and the power output end is connected with the grinding head; the power output end is provided with a stopping edge, and the axis of the stopping edge is in threaded connection with a hexagon bolt; a hexagonal positioning cavity is arranged in the grinding head, and a placing notch for embedding a cap head of a hexagonal bolt into the hexagonal positioning cavity is formed in the side wall of the grinding head; the centering device comprises an inner centering barrel sleeved on the grinding rod and an outer centering barrel sleeved on the valve seat opening, and the inner centering barrel and the outer centering barrel are connected through a connecting rod. The grinding head is rotated, the hexagonal positioning cavity is in limit fit with the cap head, and the grinding head abuts against the stop edge to realize the fixation of the grinding head; the grinding head can be disassembled by rotating the grinding head in the opposite direction; the problem of the grinding head dismouting inconvenient is solved, the dismouting process need not additionally with the help of instruments such as spanner.
Description
Technical Field
The utility model relates to a grinder especially relates to stop valve case grinder.
Background
The opening and closing member of the stop Valve (Globe Valve) is a plug-shaped Valve flap, the upper surface of the seal is a plane or sea cone surface, and the Valve flap moves linearly along the central line of the Valve seat. The valve rod can move in a mode (the common name is a hidden rod) and can also be used for controlling the flow of various types of fluid such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like in a lifting rotating rod mode. Therefore, this type of shut-off valve is very suitable for shut-off or regulation and throttling.
The stop valve works under the high temperature and high pressure environment for a long time, the action is frequent, the valve core is easy to wear, and the valve core is required to be polished by a grinding tool for solving the problem of wear of the sealing surface of the valve core.
The existing grinding tool is commonly an electric valve grinding machine, the structure of which is shown in the attached drawing 1 of the specification, and the electric valve grinding machine mainly comprises an electric drill for providing power, an output shaft of the electric drill is connected with a grinding rod, and the other end of the grinding rod penetrates through a conical grinding head and fixes the conical grinding head through a nut.
The prior electric valve grinder has the following technical defects when in use: firstly, the mode that the nut is matched with the grinding rod to fix the conical grinding head has the problem of inconvenient disassembly and assembly, and tools such as a wrench and the like are additionally used in the disassembly and assembly process basically; secondly, after the conical grinding head extends into the valve seat, a larger gap exists between the grinding rod and the opening of the valve seat, so that the center of the grinding rod cannot be fixed, the conical grinding head can strongly swing during use, accurate grinding cannot be performed, and once the grinding inclination of a sealing surface occurs, the valve can be scrapped.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's not enough, provide stop valve case grinder.
The utility model is realized by the following technical proposal, and provides a grinding device for the valve core of the stop valve, which comprises an electric drill, a grinding rod, a grinding head and a centering device; one end of the grinding rod is a power input end, the other end of the grinding rod is a power output end, the power input end is connected with an electric drill, and the power output end is connected with the grinding head; the power output end is provided with a stopping edge, and the axis of the stopping edge is in threaded connection with a hexagon bolt; a hexagonal positioning cavity is arranged in the grinding head, and a placing notch for embedding a cap head of a hexagonal bolt into the hexagonal positioning cavity is formed in the side wall of the grinding head;
the centering device comprises an inner centering barrel sleeved on the grinding rod and an outer centering barrel sleeved on the valve seat opening, and the inner centering barrel and the outer centering barrel are connected through a connecting rod.
Preferably, the placement notches are T-shaped.
Preferably, the power input end of the grinding rod is provided with a square slot, and a square output shaft of the electric drill is inserted into the square slot.
The utility model has the advantages that:
1. the grinding head is rotated, the hexagonal positioning cavity is in limit fit with the cap head, and the grinding head abuts against the stop edge to realize the fixation of the grinding head; the grinding head can be disassembled by rotating the grinding head in the opposite direction; the problem of the grinding head dismouting inconvenient is solved, the dismouting process need not additionally with the help of instruments such as spanner.
2. The inner centering cylinder and the outer centering cylinder are matched to play a centering role in the grinding rod, so that the grinding head is prevented from swinging strongly when in use, and accurate grinding is ensured.
Drawings
FIG. 1 is a schematic view of a conventional electric valve grinder;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is an enlarged view of a portion A of FIG. 2;
shown in the figure:
1. the electric drill 2, the grinding rod 3, the inner centering cylinder 4, the connecting rod 5, the outer centering cylinder 6, the valve seat opening 7, the stop edge 8, the cap head 9, the placing notch 10, the grinding head 11 and the hexagon bolt.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
As shown in fig. 2 and 3, the utility model comprises an electric drill 1, a grinding rod 2, a grinding head 10 and a centering device. One end of the grinding rod 2 is a power input end, the other end of the grinding rod is a power output end, the power input end is connected with the electric drill 1, and the power output end is connected with the grinding head 10. The power output end is provided with a stop edge 7, and the axis of the stop edge 7 is in threaded connection with a hexagon bolt 11. A hexagonal positioning cavity is arranged in the grinding head 10, and a placing notch 9 for embedding a cap head 8 of a hexagonal bolt 11 into the hexagonal positioning cavity is arranged on the side wall of the grinding head 10.
The centering device comprises an inner centering barrel 3 sleeved on the grinding rod 2 and an outer centering barrel 5 sleeved on the valve seat opening 6, and the inner centering barrel 3 and the outer centering barrel 5 are connected through a connecting rod 4. The inner centering cylinder 3 and the outer centering cylinder 5 are matched to play a centering role in the grinding rod 2, so that the grinding head 10 is prevented from generating strong swing when in use, and accurate grinding is ensured.
In this embodiment, the placement gap 9 is T-shaped, and the T-shaped placement gap 9 just fits the shape of the hexagon bolt 11.
In this embodiment, the power input end of the grinding rod 2 is provided with a square slot, and the square output shaft of the electric drill 1 is inserted into the square slot. The connection form of the insertion connection, the grinding rod 2 and the electric drill 1 can be flexibly assembled.
When the novel cap is used specifically, the hexagon bolt 11 is rotated firstly, the distance between the cap head 8 and the stop edge 7 is increased, and the cap head 8 is placed into the hexagon positioning cavity from the placement gap 9. The grinding head 10 is rotated, the hexagonal positioning cavity is in limit fit with the cap head 8, and the grinding head 10 abuts against the stop edge 7 to realize the fixation of the grinding head 10; the grinding head 10 can be disassembled by rotating the grinding head 10 in the opposite direction; the problem of grinding head 10 dismouting inconvenient is solved, the dismouting process need not additionally with the help of instruments such as spanner. The grinding head 10 extends into the valve seat, the outer centering barrel 5 is sleeved on the valve seat opening 6, and an operator can hold the outer centering barrel 5 with one hand and hold the electric drill 1 with the other hand for grinding.
Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.
Claims (3)
1. Stop valve case grinder, its characterized in that: comprises an electric drill, a grinding rod, a grinding head and a centering device; one end of the grinding rod is a power input end, the other end of the grinding rod is a power output end, the power input end is connected with an electric drill, and the power output end is connected with the grinding head; the power output end is provided with a stopping edge, and the axis of the stopping edge is in threaded connection with a hexagon bolt; a hexagonal positioning cavity is arranged in the grinding head, and a placing notch for embedding a cap head of a hexagonal bolt into the hexagonal positioning cavity is formed in the side wall of the grinding head;
the centering device comprises an inner centering barrel sleeved on the grinding rod and an outer centering barrel sleeved on the valve seat opening, and the inner centering barrel and the outer centering barrel are connected through a connecting rod.
2. The shut off valve spool grinder assembly of claim 1, wherein: the placement gap is T-shaped.
3. The shut off valve spool grinder assembly of claim 2, wherein: the power input end of the grinding rod is provided with a square slot, and a square output shaft of the electric drill is inserted into the square slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021994446.8U CN213731105U (en) | 2020-09-14 | 2020-09-14 | Grinding device for valve core of stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021994446.8U CN213731105U (en) | 2020-09-14 | 2020-09-14 | Grinding device for valve core of stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213731105U true CN213731105U (en) | 2021-07-20 |
Family
ID=76843592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021994446.8U Expired - Fee Related CN213731105U (en) | 2020-09-14 | 2020-09-14 | Grinding device for valve core of stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213731105U (en) |
-
2020
- 2020-09-14 CN CN202021994446.8U patent/CN213731105U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108032177B (en) | Grinding tool for sealing surface of safety valve | |
| CN201326823Y (en) | Corrugated pipe stop valve for chlorine | |
| CN213004463U (en) | Valve grinding device with grinding rod centering function | |
| CN106287082B (en) | Fluid shunt device | |
| CN213731105U (en) | Grinding device for valve core of stop valve | |
| CN207027162U (en) | A kind of minor valve valve element lapping apparatus | |
| CN211202889U (en) | Ultrahigh pressure blowoff valve | |
| CN213479213U (en) | Butterfly plate locking device | |
| CN209125517U (en) | A kind of valve grinding device | |
| CN211624335U (en) | Flexible seal telescopic butterfly valve | |
| CN219504219U (en) | Positioning fixture is guaranteed to butterfly valve shaft hole axiality | |
| CN217046267U (en) | Tool for rapidly disassembling butterfly valve | |
| CN210255579U (en) | Manual grinding tool for safety valve | |
| CN221443375U (en) | Three-piece type welded ball valve | |
| CN221313825U (en) | Positioning device for machining inner diameter of butterfly valve sealing gasket | |
| CN217153020U (en) | Pull rod type butterfly valve | |
| CN214999448U (en) | Spiral center line butterfly valve without pin lining rubber | |
| CN217977398U (en) | Quick closing valve | |
| CN217800997U (en) | Split type valve grinder | |
| CN216344029U (en) | Integrated stop valve | |
| CN220600458U (en) | Electric ventilation butterfly valve | |
| CN220268442U (en) | Prevent pivoted heavy-calibre stop valve lower guide structure of valve clack | |
| CN212480149U (en) | High-pole stop valve for farmland pipeline | |
| CN209598932U (en) | Valve seat sealing backside slot grinding device | |
| CN215673699U (en) | Double-loose joint ball valve |
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: 20210720 |