CN211370351U - Flow guiding type anti-drop valve - Google Patents
Flow guiding type anti-drop valve Download PDFInfo
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- CN211370351U CN211370351U CN201922103507.0U CN201922103507U CN211370351U CN 211370351 U CN211370351 U CN 211370351U CN 201922103507 U CN201922103507 U CN 201922103507U CN 211370351 U CN211370351 U CN 211370351U
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- falling
- valve
- valve body
- drop
- sleeve
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Abstract
The utility model relates to the technical field of drilling tools, in particular to a diversion-type anti-drop valve, which comprises an anti-drop valve body, a valve core, a valve sleeve, a positioning spiral screen, a spring, an alloy nozzle and a diversion anti-drop rod; the anti-falling valve body and the flow guide anti-falling rod are of an integrated structure, and the flow guide anti-falling rod extends into the anti-falling valve body and is matched with the anti-falling valve body; the valve core is arranged in the valve sleeve, the valve sleeve is arranged in the anti-falling valve body, the spring is sleeved between the valve core and the valve sleeve, and the positioning screw screen is arranged on the anti-falling valve body and used for positioning the valve sleeve. The utility model discloses a prevent falling valve body and water conservancy diversion and prevent falling the pole and structurally adopt the integrated design, overcome connecting thread and appear dropout or the unable problem of preventing falling of fracture, improved construction safety factor in the pit, reduced manufacturing cost moreover, shortened and prevented falling casing length, practiced thrift raw and other materials.
Description
Technical Field
The utility model relates to a drilling tool technical field especially relates to a valve is prevented falling by water conservancy diversion formula.
Background
In the field of petroleum and geological drilling, a screw drilling tool which is commonly used is a positive displacement downhole power drilling tool. Due to a series of characteristics of the structure and the performance of the drilling fluid, the drilling fluid is widely applied to the aspects of petroleum drilling and well repairing, and is used for drilling operations in the aspects of address exploration, coal bed gas exploitation, building pipeline construction, national defense engineering and the like. The screw drilling tool comprises a bypass valve, an anti-drop assembly, a motor assembly, a universal shaft assembly, a transmission shaft assembly and the like. The bypass valve is an auxiliary component of the screw drilling tool and is used for communicating the space in the drill string with the annular space when the pump is stopped so as to prevent drilling fluid in the drill string from overflowing to pollute a drill floor when the drill string is tripped out and a single joint is connected and changed, and the normal work is influenced.
The bypass valve body and the anti-falling shell of the original design structure are of split structures, the bypass valve body and the anti-falling shell are in threaded connection, once the connecting threads are tripped or broken, the drilling tool on the lower portion directly falls into the well, and underground accidents are caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the not enough of above-mentioned technique, and provide a water conservancy diversion formula anti-drop valve.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme: the utility model provides a water conservancy diversion formula anti-drop valve which characterized in that: comprises an anti-drop valve body, a valve core, a valve sleeve, a positioning spiral screen, a spring, an alloy nozzle and a flow guide anti-drop rod; the anti-falling valve body and the flow guide anti-falling rod are of an integrated structure, and the flow guide anti-falling rod extends into the anti-falling valve body and is matched with the anti-falling valve body; the valve core is arranged in the valve sleeve, the valve sleeve is arranged in the anti-falling valve body, the spring is sleeved between the valve core and the valve sleeve, and the positioning screw screen is arranged on the anti-falling valve body and used for positioning the valve sleeve.
Preferably, the end part of the anti-falling valve body is provided with an alloy nozzle, and the alloy nozzle is fixed on the anti-falling valve body through a check ring for holes.
Preferably, the anti-falling cap on the diversion anti-falling rod is provided with 3 small diversion semicircular holes.
Compared with the prior art, the utility model discloses a prevent falling valve body and water conservancy diversion and prevent falling the pole and structurally adopt integrated design, overcome connecting thread and appear dropout or the problem that the fracture can't prevent falling, improved construction safety factor in the pit, reduced manufacturing cost moreover, shortened and prevented falling casing length, practiced thrift raw and other materials.
Drawings
FIG. 1 is a cross-sectional view of the present device;
fig. 2 is a perspective view of the diversion anti-drop bar of the device.
Detailed Description
The following detailed description of the preferred embodiments of the present invention is provided in connection with the accompanying drawings. As shown in fig. 1 and 2, a diversion type anti-drop valve comprises an anti-drop valve body 1, a valve core 2, a valve sleeve 3, a positioning spiral screen 4, a spring 5, a hole retainer ring 6, an alloy nozzle 7, an alloy nozzle 8 and a diversion anti-drop rod 9; the anti-falling valve body and the flow guide anti-falling rod are of an integrated structure, and the flow guide anti-falling rod extends into the anti-falling valve body and is matched with the anti-falling valve body; the valve core is arranged in the valve sleeve, the valve sleeve is arranged in the anti-falling valve body, the spring is sleeved between the valve core and the valve sleeve, and the positioning screw screen is arranged on the anti-falling valve body and used for positioning the valve sleeve. The alloy nozzle is fixed on the anti-falling valve body through a check ring for holes.
The anti-falling cap on the diversion anti-falling rod is provided with 3 small diversion semicircular holes, so that drilling equipment is prevented from being damaged.
During assembly, the alloy nozzle is arranged in the flow guide anti-drop rod, the hole check ring 7 is arranged in the flow guide anti-drop rod, and the flow guide anti-drop rod is arranged in the anti-drop valve and is screwed with the lower end rotor by a tool; the spring is arranged in the valve sleeve; the valve core is arranged in the valve sleeve; the retainer ring 6 for the hole is arranged in the valve sleeve; the valve sleeve is arranged in the anti-falling valve body;
to sum up, compare with prior art, the utility model provides an integral type is put away the bypass valve, through the bypass valve body with prevent falling the structurally integrated design of device, not only overcome connecting thread fracture that goes wrong, the following part of fracture will directly fall the well, causes the problem of production accident, has improved production safety factor, has shortened moreover and has prevented falling casing length, has practiced thrift raw and other materials.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (3)
1. The utility model provides a water conservancy diversion formula anti-drop valve which characterized in that: comprises an anti-drop valve body, a valve core, a valve sleeve, a positioning spiral screen, a spring, an alloy nozzle and a flow guide anti-drop rod; the anti-falling valve body and the flow guide anti-falling rod are of an integrated structure, and the flow guide anti-falling rod extends into the anti-falling valve body and is matched with the anti-falling valve body; the valve core is arranged in the valve sleeve, the valve sleeve is arranged in the anti-falling valve body, the spring is sleeved between the valve core and the valve sleeve, and the positioning screw screen is arranged on the anti-falling valve body and used for positioning the valve sleeve.
2. The flow-guided drop prevention valve of claim 1, wherein: the end part of the anti-falling valve body is provided with an alloy nozzle, and the alloy nozzle is fixed on the anti-falling valve body through a check ring for holes.
3. The flow-guided drop prevention valve of claim 1, wherein: the anti-falling cap on the diversion anti-falling rod is provided with 3 small diversion semicircular holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922103507.0U CN211370351U (en) | 2019-11-29 | 2019-11-29 | Flow guiding type anti-drop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922103507.0U CN211370351U (en) | 2019-11-29 | 2019-11-29 | Flow guiding type anti-drop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211370351U true CN211370351U (en) | 2020-08-28 |
Family
ID=72150488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922103507.0U Active CN211370351U (en) | 2019-11-29 | 2019-11-29 | Flow guiding type anti-drop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211370351U (en) |
-
2019
- 2019-11-29 CN CN201922103507.0U patent/CN211370351U/en active Active
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