CN216742960U - Accurate closed electric eccentric half-ball valve - Google Patents
Accurate closed electric eccentric half-ball valve Download PDFInfo
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- CN216742960U CN216742960U CN202220057961.6U CN202220057961U CN216742960U CN 216742960 U CN216742960 U CN 216742960U CN 202220057961 U CN202220057961 U CN 202220057961U CN 216742960 U CN216742960 U CN 216742960U
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Abstract
The utility model relates to the technical field of valves, in particular to an accurate-closing electric eccentric half ball valve which comprises a valve body, a half ball valve core, a valve rod and a valve seat, wherein the valve core is arranged in the valve body, a connecting piece and a locking bolt are arranged on a connecting piece, a notch for the connecting piece to be embedded is formed in the bottom end of the valve rod, a mounting part and the connecting piece are arranged, one of the mounting part and the connecting piece is provided with a positioning hole, and the other one of the mounting part and the connecting piece is provided with a positioning bulge for being inserted into the positioning hole. So when the valve rod rotates to the closed valve body position, the valve core can also be in the valve body closed position, can guarantee that whole hemisphere valve realizes accurate closure from this.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to an accurate-closing electric eccentric half-ball valve.
Background
The hemisphere valve is a valve which drives the hemisphere valve core to rotate around the axis by the valve rod to control the valve body to open and close, and is widely applied because of small flow resistance and good corrosion resistance.
For example, utility model patent with application number CN202022242619.7 discloses an eccentric hemisphere valve spheroid flow ware body, including valve body, valve rod, episphere case and lower hemisphere case are the longitudinal symmetry and are located the inside of valve body, the episphere case fixed set up in the lower extreme of valve rod, the fixed pivot that is equipped with of downside of hemisphere case down, the lower extreme of pivot pass through the bearing with the valve body rotates to be connected, be provided with fixed knot between the inside wall of episphere case and lower hemisphere case and construct, be provided with seal structure between episphere case and the lower hemisphere case.
In the above-mentioned scheme, mainly rely on the valve rod to rotate and then drive the opening and close of hemispherical case rotation realization valve body, but in above-mentioned scheme, the episphere case through the second nut with valve rod fixed connection, this kind of connected mode is because the nut is screwed on the valve rod, therefore the valve rod is when the pivoted, cause the relative valve rod of nut to take place relative rotation easily, thereby make the nut not hard up, and then make and appear becoming flexible between valve rod and the hemisphere case, make the unable accurate drive hemisphere case of valve rod keep synchronous rotation, so when the valve rod rotates to closing valve door position, probably hemisphere case has not yet accurate rotation to closing position, so just appear the closed not accurate problem of valve, so still remain to improve.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems mentioned in the background technology, the utility model aims to provide a precise closing electric eccentric half ball valve
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides an accurate closed electronic eccentric half ball valve, includes case, valve rod and the disk seat of valve body, hemisphere, the case is located in the valve body for realize opening and close of valve body with the disk seat cooperation, the case is including the installation department that has the mounting hole, wear to establish in the mounting hole bottom the valve rod to fix through a connecting piece and installation department, the connecting piece includes connection piece and locking bolt, the incision that supplies the connection piece embedding is seted up to the bottom of valve rod, installation department and connection piece are equipped with the locating hole on one of them, are equipped with on another to be used for inserting the location arch in the locating hole, under the assembled state, the connection piece passes through locking bolt to be fixed in the incision relative valve rod and keeps the circumference location, the location arch makes connection piece and installation department horizontal direction in inserting the locating hole keep relative positioning.
Compare prior art, the advantage of this scheme of adoption lies in:
in the scheme, the notch is arranged at the bottom of the valve rod, the connecting sheet matched with the notch is arranged, and the positioning hole and the positioning bulge are respectively arranged on the mounting part and the connecting sheet, so that the valve rod drives the connecting sheet to rotate when rotating, the connecting sheet and the valve rod are kept to be positioned circumferentially in the notch due to the matching relationship between the notch and the connecting sheet, namely, the connecting sheet is not deflected relative to the valve rod, so that the valve rod and the connecting sheet rotate synchronously all the time, the connecting sheet and the mounting part are matched with the positioning hole through the positioning bulge, so that the connecting sheet can rotate synchronously with the mounting part when rotating along with the valve rod, the mounting part can be synchronously driven to rotate, and finally, the purpose of driving the valve core to rotate synchronously is realized, the process can be known, when the valve rod rotates, the valve rod and the valve core can always rotate synchronously, the two are not relatively deflected, so that when the valve rod rotates to the position of closing the valve body, the valve core is also positioned at the closing position of the valve body, and the whole hemispherical valve can be ensured to be accurately closed.
Preferably, the positioning protrusion is arranged on the bottom wall of the mounting portion, and the positioning hole is arranged on the connecting piece.
Preferably, the bottom of the valve rod is provided with a first screw hole, the connecting piece is provided with a first butt hole corresponding to the first screw hole, and the locking bolt penetrates through the first butt hole and is in threaded connection with the first screw hole.
Preferably, the connecting piece further comprises an auxiliary bolt, a second screw hole is formed in the rod wall of the valve rod in the mounting hole, a second butt joint hole is formed in the position, corresponding to the second screw hole, of the side wall of the mounting portion, and the auxiliary bolt penetrates through the second butt joint hole and is in threaded connection with the second screw hole.
Preferably, when the positioning protrusion is inserted into the positioning hole, the second screw hole and the second aligning hole are in a coaxial position.
Other advantages and effects of the present invention are specifically explained in the detailed description section.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a schematic view of the connection piece assembled with the valve stem;
fig. 4 is a disassembled view of the connecting piece and the valve rod.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, the present embodiment provides a precise-closing electric eccentric half ball valve, which includes a valve body 1, a half ball valve element 2, a valve rod 3, and a valve seat 4, where the valve element 2 is disposed in the valve body 1 and is used to cooperate with the valve seat 4 to open and close the valve body 1, and for the cooperation between the valve body 1 and the valve seat 4, a large number of published documents are provided in the prior art for describing, and thus, the detailed description thereof is omitted.
The valve rod 3 mainly used drives the valve core 2 to rotate so as to realize the opening and closing of the valve body 1, the bottom of the valve core 2 is rotatably connected with a rotating shaft 11 arranged on the valve body 1, and the rotating shaft 11 and the valve rod 3 are coaxially arranged.
The half ball valve in this embodiment is of an electric structure, that is, the valve rod 3 is connected to an electric actuator, and the electric actuator drives the valve rod 3 to rotate, where the electric actuator may be a motor 5, and a main shaft of the motor 5 is connected to the valve rod 3 to drive the valve rod 3 to rotate, as shown in fig. 1.
Referring to fig. 2, the valve body 2 includes a mounting portion 21 having a mounting hole 211, and it should be noted that the mounting portion 21 mainly refers to an upper end portion of the valve body 2 for connecting the valve stem 3.
The bottom of the valve rod 3 is arranged in the mounting hole 211 in a penetrating way and is fixed with the mounting part 21 through a connecting piece.
In order to prevent the valve rod 3 from slipping with the rotation of the valve core 2 when rotating, that is, the valve core 2 and the valve rod 3 cannot rotate synchronously, so that the valve core 2 cannot rotate to the closed position accurately, in this embodiment, as shown in fig. 2-4, the connecting member includes a connecting piece 61 and a locking bolt 62, the bottom end of the valve rod 3 is provided with a notch 31 for the connecting piece 61 to be embedded in, the notch 31 is arranged along the radial direction of the valve rod 3 and penetrates through the side walls on both sides of the valve rod 3, the connecting piece 61 is in a strip shape to be matched with the shape of the notch 31, when the connecting piece 61 is embedded in the notch 31, the side walls on both sides of the connecting piece 61 are respectively attached to the side walls on both sides of the notch 31, so that the valve rod 3 and the connecting piece 61 can be mutually limited, the connecting piece 61 cannot rotate relatively with the valve rod 3, that is, in the assembled state, the connecting piece 61 is fixed in the notch 31 by the locking bolt 62 to maintain circumferential positioning relative to the valve rod 3, the valve rod 3 is convenient for the connecting piece 61 to always keep synchronous rotation.
One of the mounting portion 21 and the connecting portion 61 is provided with a positioning hole 611, and the other is provided with a positioning protrusion 213 for inserting into the positioning hole 611, for example, in the present embodiment, the positioning protrusion 213 is provided on the bottom wall of the mounting portion 21, the positioning hole 611 is provided on the connecting portion 61, and when the positioning protrusion 213 is inserted into the positioning hole 611, the connecting portion 61 and the mounting portion 21 are kept in relative positioning in the horizontal direction, that is, the connecting portion 61 and the mounting portion 21 are always kept in synchronous rotation, where the horizontal direction is perpendicular to the axial direction of the valve rod 3.
The notch 31 is arranged at the bottom of the valve rod 3, the connecting piece 61 matched with the notch is arranged, and the positioning hole 611 and the positioning protrusion 213 are respectively arranged on the mounting part 21 and the connecting piece 61, so that the valve rod 3 drives the connecting piece 61 to rotate when rotating, the connecting piece 61 and the valve rod 3 are kept in circumferential positioning in the notch 31 due to the matching relationship between the notch 31 and the connecting piece 61, namely the connecting piece 61 and the valve rod 3 are not deflected relatively, so that the valve rod 3 and the connecting piece 61 rotate synchronously all the time, and the connecting piece 61 and the mounting part 21 are matched with the positioning hole 611 through the positioning protrusion 213, so that the connecting piece 61 can rotate synchronously with the mounting part 21, the connecting piece 61 can synchronously drive the mounting part 21 to rotate along with the rotation of the valve rod 3, and finally, the purpose of driving the valve core 2 to rotate synchronously is realized, and the process is known, when the valve rod 3 rotates, the valve rod and the valve core 2 can always keep synchronous rotation, relative deflection is not generated between the valve rod and the valve core 2, so that when the valve rod 3 rotates to the position of the closed valve body 1, the valve core 2 can also be located at the closed position of the valve body 1, and therefore the whole hemispherical valve can be guaranteed to be accurately closed.
In short, the specific process that the valve rod 3 drives the valve core 2 to rotate in this embodiment is, the valve rod 3 drives the connecting sheet 61 to rotate, and then the connecting sheet 61 pushes the positioning protrusion 213, so that the positioning protrusion 213 drives the valve core 2 to rotate, in this process, the connecting sheet 61 rotates synchronously with the valve rod 3 under the cooperation of the notch 31, and the connecting sheet 61 rotates synchronously with the mounting portion 21 (valve core 2) again under the cooperation of the positioning protrusion 213 and the positioning hole 611, so as to realize the accurate closed effect.
As for the specific connecting structure of the connecting piece 61 and the valve rod 3: as shown in fig. 4, the bottom of the valve rod 3 has a first screw hole 32, the connecting plate 61 has a first connecting hole 612 corresponding to the first screw hole 32, and the locking bolt 62 passes through the first connecting hole 612 and is threadedly connected with the first screw hole 32, so that the connecting plate 61 is fixed on the valve rod 3 by the locking bolt 62, and the connecting plate 61 cannot fall out of the notch 31 in the axial direction of the valve rod, as shown in fig. 3.
In the above-mentioned scheme, it is final mainly to rely on connection piece 61 to stir protruding 213 of location and drive case 2 pivoted, so case 2's main atress position lies in protruding 213 of location, so cause protruding 213 of location to bear great effort easily to make protruding 213 of location fracture easily, in order to share the atress of protruding 213 of location, reduce the protruding 213's of location burden, do further improvement to the connecting piece in this embodiment:
as shown in fig. 2, the connecting member further includes an auxiliary bolt 63, the second screw hole 33 is formed in the wall of the valve rod 3 located in the mounting hole 211, a second aligning hole 212 is formed in the side wall of the mounting portion 21 corresponding to the second screw hole 33, the auxiliary bolt 63 penetrates through the second aligning hole 212 to be in threaded connection with the second screw hole 33, so that the valve rod 3 can also drive the valve core 2 to rotate through the auxiliary bolt 63 when rotating, so as to reduce the stress of the positioning protrusion 213, and indirectly protect the positioning protrusion 213.
Wherein, after the connecting piece 61 is connected with the valve rod 3 through the locking bolt 62, and the positioning protrusion 213 is inserted into the positioning hole 611, the second screw hole 33 and the second aligning hole 212 are in the coaxial position, so that the purpose of the arrangement is that the matching between the connecting piece 61 and the positioning protrusion 213 can play a positioning effect on the installation of the secondary bolt 63, because to ensure the installation of the secondary bolt 63, first the second screw hole 33 and the second aligning hole 212 should be rotated to the aligned position, i.e. the coaxial arrangement, so that the secondary bolt 63 can smoothly pass through, and the second screw hole 33 is located at the inner side of the installation portion 21, so that it is difficult for human eyes to directly observe whether the second screw hole 33 is aligned with the second aligning hole 212, and the operation is troublesome, therefore, after the arrangement is adopted in the present embodiment, as long as the connecting piece 61 is connected with the valve rod 3 through the locking bolt 62, and the positioning protrusion 213 is inserted into the positioning hole 611, the position of the second screw hole 33 is exactly in the coaxial position with the second aligning hole 212, and manual hole alignment is not needed, so that the installation of the auxiliary bolt 63 is simplified.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (5)
1. The utility model provides an accurate closed electronic eccentric half ball valve, includes case, valve rod and the disk seat of valve body, hemisphere, the case is located in the valve body for realize opening and close of valve body with the disk seat cooperation, the case is including the installation department that has the mounting hole, wear to establish in the mounting hole bottom the valve rod to fix through a connecting piece and installation department, a serial communication port, the connecting piece includes connection piece and locking bolt, the incision that supplies the connection piece embedding is seted up to the bottom of valve rod, installation department and connection piece are equipped with the locating hole on one of them, are equipped with on another to be used for inserting the locating protrusion in the locating hole, under the assembled state, the connection piece passes through locking bolt to be fixed in the incision relative valve rod and keeps circumferential direction, the locating protrusion makes connection piece and installation department keep relative positioning on the horizontal direction in inserting the locating hole.
2. The precise-closing electric eccentric half ball valve according to claim 1, wherein the positioning protrusion is arranged on the bottom wall of the mounting portion, and the positioning hole is arranged on the connecting piece.
3. The precise-closing electric eccentric half ball valve as claimed in claim 1, wherein the bottom of the valve rod is provided with a first screw hole, the connecting piece is provided with a first butt hole corresponding to the first screw hole, and the locking bolt passes through the first butt hole and is in threaded connection with the first screw hole.
4. The precise-closing electric eccentric half ball valve according to claim 1, wherein the connecting piece further comprises an auxiliary bolt, a second screw hole is formed in the rod wall of the valve rod in the mounting hole, a second butt-joint hole is formed in the side wall of the mounting portion corresponding to the second screw hole, and the auxiliary bolt penetrates through the second butt-joint hole to be in threaded connection with the second screw hole.
5. The precise-closing electric eccentric hemisphere valve of claim 4, wherein when the positioning protrusion is inserted into the positioning hole, the second screw hole and the second aligning hole are in a coaxial position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220057961.6U CN216742960U (en) | 2022-01-11 | 2022-01-11 | Accurate closed electric eccentric half-ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220057961.6U CN216742960U (en) | 2022-01-11 | 2022-01-11 | Accurate closed electric eccentric half-ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216742960U true CN216742960U (en) | 2022-06-14 |
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ID=81913181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220057961.6U Active CN216742960U (en) | 2022-01-11 | 2022-01-11 | Accurate closed electric eccentric half-ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216742960U (en) |
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2022
- 2022-01-11 CN CN202220057961.6U patent/CN216742960U/en active Active
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