CN210978580U - Connecting device of electric gate valve - Google Patents
Connecting device of electric gate valve Download PDFInfo
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- CN210978580U CN210978580U CN201922171261.0U CN201922171261U CN210978580U CN 210978580 U CN210978580 U CN 210978580U CN 201922171261 U CN201922171261 U CN 201922171261U CN 210978580 U CN210978580 U CN 210978580U
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Abstract
The utility model discloses a connecting device of electric gate valve, with electric gate valve's conversion connection pad and valve gap connection, the device contains as follows: a plurality of positioning holes are formed in the interface of the valve cover; the positioning holes are uniformly arranged around the head part of the valve cover in the circumferential direction; a plurality of through holes are formed in the interface of the conversion connecting disc; the drift diameter, the number and the position of the positioning hole are consistent with those of the through hole; and the bolt pins penetrate through the through holes and are inserted into the positioning holes to fixedly connect the conversion connecting disc with the valve cover. The utility model connects the conversion connecting disc and the valve cover through the bolt pin, thereby avoiding the vertical space between the installation valve cover and the conversion connecting disc, and tightening the valve cover bolt through the air gun when installing the valve cover bolt, and ensuring the uniformity of the tightening torque of the valve cover bolt; the utility model discloses the installation is dismantled simply conveniently.
Description
Technical Field
The utility model relates to an electric valve field, concretely relates to electric gate valve's connecting device.
Background
In the prior art, as shown in fig. 3, a conversion connection disc of a power gate valve compresses two parts, namely a conversion connection disc 9 ' and a valve cover 1 ' of the power gate valve through a valve cover bolt 2 '. Because the valve rod packing and the bearing belong to quick-wear parts of the valve, the parts need to be replaced after the valve is used for a period of time, the bonnet bolt needs to be disassembled in the valve maintenance process, and the upper end of the bonnet bolt is blocked by the flange on the upper part of the conversion connecting disc and can only be disassembled manually, so that the labor intensity is increased; when the bonnet bolt is disassembled, the conversion connecting disc and the bonnet are separated and loosened, and the bonnet backing ring 17' is changed from a compression state to a free state, so that internal fluid is leaked, and the bonnet backing ring is a sealing element which cannot be repeatedly used, so that the bonnet backing ring needs to be replaced, and the maintenance cost is increased.
In the prior art, two parts are tightly pressed by the valve cover bolt, the maintenance and installation difficulty is greatly increased, if the valve is on a well head and needs to be maintained on line, the replacement of the valve cover backing ring cannot guarantee that the valve cover backing ring can be sealed completely, the risk of fluid leakage is increased, the valve cover bolt cannot be tightened when a certain well head is far away from the ground, and particularly, the problems cannot be solved for the oil field site by the structure tightly pressed by the valve cover bolt in order to save cost, reduce labor intensity and reduce maintenance risk in the existing oil field site.
SUMMERY OF THE UTILITY MODEL
The utility model aims to connect the conversion connecting disc and the valve cover through the bolt pin, thereby becoming two independent mechanisms and avoiding the vertical space between the installation valve cover and the conversion connecting disc; when finding valve gap upper portion spare part and damaging, will change a plurality of bolt round pin dismantlement around the connection pad, make conversion connection pad and valve gap phase separation, alright change the spare part of damage according to the demand.
In order to achieve the above object, the utility model provides a connecting device of electric gate valve, with electric gate valve's conversion connection pad and valve gap connection, the head endotheca of valve gap is equipped with the valve rod, and the valve rod top overcoat is equipped with the valve rod cover, be equipped with the bearing between conversion connection pad and the valve rod cover, the device contains as follows:
the conversion connecting disc is sleeved on the head of the valve cover, and the inner side wall of the conversion connecting disc is in contact with the outer side wall of the head of the valve cover;
the positioning holes are formed in the outer side wall of the head of the valve cover;
the side wall of the conversion connecting disc is provided with a plurality of through holes;
the positioning holes correspond to the through diameters, the number and the positions of the through holes one to one;
and the bolt pins respectively penetrate through the through holes and are correspondingly inserted into the positioning holes to fixedly connect the conversion connecting disc with the valve cover.
Preferably, the positioning holes are uniformly arranged around the circumference of the head of the valve cover.
Preferably, the bolt pins are uniformly arranged around the circumferential direction of the conversion connecting disc, and the bolt pins correspond to the through holes and the positioning holes one to one.
Preferably, the head of the bolt pin is a pin, the tail of the bolt pin is a threaded bolt, and the head and the tail of the bolt pin are integrally connected.
Preferably, the device further comprises an elastic washer, which is sleeved on the periphery of the bolt pin and is arranged between the bolt pin and the conversion connecting disc.
Preferably, the device further comprises an oil cup arranged on the conversion connecting disc and communicated with the bearing.
Preferably, the device further comprises an O-ring disposed on an inner wall and/or an outer wall of the transition connection pad.
Preferably, the device further comprises a bonnet bolt secured to a shoulder of the bonnet.
The utility model has the advantages that:
the utility model provides an utilize device that the bolt round pin is connected valve gap and conversion connection pad, avoided the mode that the valve gap bolt compressed tightly, can not involve the valve gap backing ring in the maintenance process and dismantle to guarantee that the valve gap backing ring can not lead to inside fluid to leak the atmosphere because of dismantling, reduce the leakage possibility that the maintenance brought. The utility model discloses avoided the perpendicular space between installation valve gap and the conversion connection pad to can beat tightly through the air gun during installation valve gap bolt, guarantee the homogeneity of valve gap bolt tightening torque, reduce artificial intensity, practice thrift the time of installation valve gap bolt, guarantee the seal reliability of valve gap backing ring simultaneously, avoid leading to the valve gap backing ring to damage and cause the outer risk of leaking of liquid because of dismantling the valve gap bolt. The utility model discloses a head round pin structural design of bolt round pin also greatly reduced the spot facing work degree of difficulty around the valve gap. The utility model discloses the installation is dismantled portably lightly, need not like removing among the prior art and dismantle the valve gap bolt and change the valve gap backing ring, only needs to dismantle the bolt pin around the conversion connection pad with ordinary open-ended wrench, just can change the vulnerable part of valve, about the cost time of installation maintenance, the safety risk that brings when reducing the maintenance alleviates intensity of labour and reduces the maintenance cost, has reduced the quality requirement to the professional.
Drawings
Fig. 1 is a schematic diagram of the connection structure of the conversion connection disc and the valve cover of the present invention.
In the figure: the valve comprises a valve cover 1, a valve cover bolt 2, a valve rod 3, a valve rod packing 4, a packing pressing cap 5, an oil cup 6, a valve rod pin 7, an O-shaped ring 8, a conversion connecting disc 9, a valve rod sleeve 10, a bearing 11, an O-shaped ring 12, an elastic washer 13, a bolt pin 14 and an O-shaped ring 15.
Fig. 2 is the schematic diagram of the conversion connection disc of the utility model installed on the electric gate valve.
In the figure: the valve comprises a valve body 16, a valve cover backing ring 17, a fixing bolt 18, a power head 19 and a grease injection valve 20.
Fig. 3 is a schematic structural view of a transfer disk installed on an electric gate valve in the prior art.
In the figure: valve cover 1 ', valve cover bolt 2 ', conversion connecting disc 9 ', valve body 16 ' and valve cover backing ring 17 '.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model provides a connecting device of electric gate valve connects electric gate valve's conversion connection pad 9 and valve gap 1, as shown in fig. 1, the device contains as follows:
the conversion connecting disc 9 is sleeved on the head of the valve cover 1, namely the inner side wall of the conversion connecting disc 9 is in contact with the outer side wall of the head of the valve cover 1, and the contact surface between the two is recorded as an interface;
a plurality of positioning holes are formed in an interface (the outer side wall of the head part) of the valve cover 1; the positioning holes are uniformly arranged around the circumference of the head part of the valve cover 1;
a plurality of through holes are formed in an interface (side wall) of the conversion connecting disc 9, and the through holes are uniformly arranged around the circumference of the conversion connecting disc;
the diameter, the number and the position of the positioning holes are consistent with those of the through holes;
and a plurality of bolt pins 14 which respectively penetrate through the through holes and are correspondingly inserted into the positioning holes to fixedly connect the conversion connecting disc 9 and the valve cover 1.
Further, the bolt pins 14 are uniformly arranged around the circumference of the conversion connecting disc 9, the bolt pins 14 correspond to the through holes and the positioning holes one to one, and the bolt pins 14 are embedded into the positioning holes, so that the installation direction of the electric heads of each valve is consistent.
Furthermore, the head of the bolt pin 14 is a pin, the tail is a threaded bolt, and the head and the tail are integrally formed and connected, so that the convenience in disassembly and assembly and the safety in use of the valve are guaranteed. Because the valve rod is subjected to fluid thrust and valve switch torsion force, the bolt pin 14 is made of high-strength steel to ensure rigidity strength, the tail part is designed into threaded connection to ensure firm connection, and the head pin structural design facilitates installation and resists the shearing force and the torsion force of fluid on the conversion connecting disc 9.
Further, the device also comprises an elastic washer 13 which is sleeved on the periphery of the bolt pin 14 and is arranged between the bolt pin 14 and the conversion connecting disc 9 for preventing the bolt pin 14 from loosening.
Furthermore, the device also comprises an oil cup 6 arranged on the conversion connecting disc 9, so that good lubrication of the bearing is ensured, and oil can be injected and maintained at regular intervals.
Further, the apparatus further includes a plurality of O-rings 8/12/15 provided on the inner and/or outer periphery of the switching land for detecting the sealability of the storage of the lubricating oil for preventing the leakage of the lubricating oil injected into the lubricated bearing. In a preferred embodiment, a ring of O-rings 15 is provided at the interface, a ring of O-rings 8 is provided at the interface between the stem sleeve and the transition coupling 9, and a ring of O-rings 12 is provided on the outer circumference of the transition coupling 9.
In a specific application embodiment of the device, as shown in fig. 2, the head of the valve cap 1 is fixedly connected with a conversion connecting disc 9 through a bolt pin 14, and the conversion connecting disc 9 is sleeved on the head of the valve cap 1; the shoulder part of the valve cover 1 is fixedly connected with the valve body 16 through a valve cover bolt 2; the electric head is fixed on the conversion connecting disc 9 through a bolt, and when the valve is maintained and installed, the specific steps are as follows:
s1, if the O-shaped ring position 8/12/15 is found to have liquid flowing out in the use of the valve, the leakage of the valve rod packing 4 is indicated; at the moment, closing the upstream valve, and discharging the pressure in the flow channel to 0 MPa;
s2, opening the grease injection valve 20 to release residual pressure possibly existing and opening and closing the valve three times in order to ensure that no residual pressure exists in the cavity;
s3, unscrewing and moving away the electric head fixing bolt 18 by using an open end wrench, moving away the electric head 19, unscrewing a plurality of bolt pins 14 around the conversion connecting disc 9 by using the open end wrench, removing the elastic washer 13, and moving away the conversion connecting disc 9;
s4, knocking the valve rod pin 7 out of the valve rod sleeve 10 and the valve rod 3 by using a hammer, removing the valve rod sleeve 10, the bearing 11 and the O-ring 8, and checking whether each part is damaged;
s5, inserting a straight screwdriver into the pin hole of the valve rod 3, rotating the screwdriver clockwise until the valve rod 3 cannot rotate, and thus establishing a certain reverse seal between the valve rod 3 and the valve cover 1 (the reverse seal means that the valve rod 3 moves upwards after the valve rod 3 rotates clockwise until the large outer circle at the lower part of the valve rod 3 is blocked by the small inner hole of the valve cover 1, and the inclined plane at the upper part of the large outer circle of the valve rod 3 is attached to the inner inclined plane at the lower part of the small hole of the valve cover 1, so as to establish a seal);
s6, screwing the packing pressing cap 5 off the valve cover 1 by a straight screwdriver, injecting sealing grease into the grease injection valve 20 by a grease injection gun until the valve rod packing 4 is extruded by the sealing grease because the valve rod packing 4 is in interference fit with the inner cavity of the valve cover 1, removing the damaged valve rod packing 4, the grease injection gun and the grease injection valve 20, and pulling out the valve rod packing 4 by a metal hook if the valve rod packing 4 is seriously damaged and cannot be extruded by the sealing grease.
S7, after the disassembly is finished, smearing lubricating grease on the new valve rod packing 4 and putting the new valve rod packing into the valve cover 1;
s8, pressing the valve rod packing 4 into the inner cavity of the valve cover 1 by utilizing the threaded connection characteristic of the packing pressing cap 5 and the valve cover 1, installing the grease injection valve 20 into the valve cover 1, smearing lubricating grease on the intact valve rod sleeve 10, the bearing 11 and the valve rod pin 7 on the valve rod 3, and clockwise rotating the valve rod sleeve 10 by using an open wrench until the bearing 11 is attached to the packing pressing cap 5;
s9, sleeving the conversion connecting disc 9 on a valve cover 1 assembly which is installed in advance, observing and rotating until a threaded hole at the lower part of the conversion connecting disc 9 is aligned with a pin hole of the valve cover 1, and sequentially installing a plurality of bolt pins 14 and elastic washers 13 on the conversion connecting disc 9 by using an open-end wrench and screwing;
and S10, opening the valve at the upstream end to observe the position of the O-shaped ring 12 of the conversion connecting disc 9 for 15 minutes, and observing whether liquid flows out of the hole or not, wherein if the electric head 19 cannot be arranged on the conversion connecting disc 9 and the electric head fixing bolt 18 is knocked down, the maintenance and installation of the valve are finished.
In the prior art, the conversion connecting disc of the electric gate valve compresses the conversion connecting disc 9 ' and the valve cover 1 ' of the electric gate valve through the valve cover bolt 2 '.
And the utility model provides a connecting device of electric gate valve is through the 14 connections of a plurality of bolt pins with conversion connection pad 9 and valve gap fixed connection, only needs to install the valve gap bolt in the valve gap surface to avoid the perpendicular installation space between conversion connection pad 9 and the valve gap 1, thereby can tighten through the air gun when installing 1 bolt of valve gap, guarantee the homogeneity of the tightening torque of 1 bolt of valve gap, reduced artificial intensity, practice thrift the time of installing 1 bolt of valve gap. As the valve cover backing ring is a part which can not be reused, the valve quick-wear part can be maintained only by disassembling the bolt pin 14 during maintenance, the risk of liquid leakage caused by damage of the valve cover backing ring due to disassembly of the valve cover bolt is avoided, the time and the cost required during maintenance of the valve are greatly saved, and the labor intensity and the requirements of professionals during the maintenance of the valve are reduced.
In summary, the conversion connecting disc and the valve cover of the utility model are connected through the bolt pin, thereby becoming two independent mechanisms; when finding valve gap upper portion spare part and damaging, will change a plurality of bolt round pin dismantlement around the connection pad, make conversion connection pad and valve gap phase separation, alright change the spare part of damage according to the demand. The utility model discloses the installation is dismantled portably lightly, need not like removing among the prior art and dismantle the valve gap bolt and change the valve gap backing ring, practices thrift the cost time of installation maintenance, reduces the safe risk that brings when maintaining, alleviates intensity of labour and reduces the maintenance cost, has reduced the quality requirement to the professional.
While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (8)
1. The utility model provides a connecting device of electric gate valve, with electric gate valve's conversion connection pad and valve gap connection, the head endotheca of valve gap is equipped with the valve rod, and valve rod top overcoat is equipped with the valve rod cover, be equipped with the bearing between conversion connection pad and the valve rod cover, its characterized in that, the device contain as follows:
the conversion connecting disc is sleeved on the head of the valve cover, and the inner side wall of the conversion connecting disc is in contact with the outer side wall of the head of the valve cover;
the positioning holes are formed in the outer side wall of the head of the valve cover;
the side wall of the conversion connecting disc is provided with a plurality of through holes;
the positioning holes correspond to the through diameters, the number and the positions of the through holes one to one;
and the bolt pins respectively penetrate through the through holes and are correspondingly inserted into the positioning holes to fixedly connect the conversion connecting disc with the valve cover.
2. The connecting device of a power gate valve as claimed in claim 1, wherein the pilot holes are uniformly circumferentially arranged around the head portion of the valve cover.
3. The connecting device of a power gate valve according to claim 1, wherein the bolt pins are uniformly arranged around the switching land in a circumferential direction, and the bolt pins correspond to the through holes and the positioning holes one to one.
4. The connecting device of a power gate valve as claimed in claim 1, wherein the head portion of the bolt pin is a pin, and the tail portion is a screw bolt, and the head portion and the tail portion are integrally formed and connected.
5. The connecting device of a power gate valve according to claim 1, further comprising an elastic washer fitted around the outer circumference of the bolt pin and installed between the bolt pin and the switching coupling plate.
6. The connecting device of a power gate valve as claimed in claim 1, further comprising an oil cup provided on said switching land, which is communicated with said bearing.
7. The connecting device of a power gate valve according to claim 1, further comprising an O-ring provided on an inner wall and/or an outer wall of the switching disk.
8. The connecting device of a power gate valve in accordance with claim 1, further comprising a cap bolt fixed to a shoulder portion of said cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922171261.0U CN210978580U (en) | 2019-12-06 | 2019-12-06 | Connecting device of electric gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922171261.0U CN210978580U (en) | 2019-12-06 | 2019-12-06 | Connecting device of electric gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210978580U true CN210978580U (en) | 2020-07-10 |
Family
ID=71438109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922171261.0U Active CN210978580U (en) | 2019-12-06 | 2019-12-06 | Connecting device of electric gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210978580U (en) |
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2019
- 2019-12-06 CN CN201922171261.0U patent/CN210978580U/en active Active
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