CN208057076U - A kind of drilling rod preventer - Google Patents
A kind of drilling rod preventer Download PDFInfo
- Publication number
- CN208057076U CN208057076U CN201820010113.3U CN201820010113U CN208057076U CN 208057076 U CN208057076 U CN 208057076U CN 201820010113 U CN201820010113 U CN 201820010113U CN 208057076 U CN208057076 U CN 208057076U
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- CN
- China
- Prior art keywords
- slot
- hole
- spool
- lock nut
- internal thread
- 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
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Abstract
The utility model discloses a kind of drilling rod preventers, belong to petroleum drilling and mining technical field.Drilling rod preventer includes two plug valves being serially connected, plug valve includes valve body, upper valve base, lower valve base, spool and valve rod, the part connected between two plug valves point is interconnecting piece, interconnecting piece includes external thread section, internal thread segment and lock nut, one end of lock nut is provided with step, one end of internal thread segment is provided with slot, and when interconnecting piece is fixed, step is inserted into slot and a part for step circumferential surface is bonded with the extruding of the inner surface of slot.Pass through the cooperation of step and slot, the axis of the axis and lock nut that make internal thread segment deviates the axis of external thread section, to the thread for making the thread of internal thread segment squeeze the thread of external thread section and the thread of lock nut squeezes external thread section, so that contact portion is difficult to be detached from, it effectively prevent loosening or falling off between two plug valves, ensure construction safety, reduces security risk.
Description
Technical field
The utility model is related to petroleum drilling and mining technical fields, and in particular to a kind of drilling rod preventer.
Background technology
When carrying out petroleum drilling and mining operation, in order to avoid high-pressure oil gas causes blowout out of control by altering spray on drilling rod hydrophthalmia,
It usually requires that plug valve is installed in the end of kelly bar, plug valve is by manually opening and closing.
The working environment of plug valve is comparatively severe, can be acted on by high-pressure oil gas, occurs closing that pressure difference is excessive leads
Cause is difficult to the case where closing, and is easy to happen safety accident, therefore, the skill that two plug valves are used in series exists in the prior art
Art.However, the connection between two plug valves is easy to be caused to loosen by the impact of high-pressure oil gas or fall off, it is hidden to there is safety
Suffer from.
Utility model content
The purpose of this utility model is to provide a kind of drilling rod preventer, connected more between the interconnecting piece of two plug valves
To be secured, the interconnecting piece of two plug valves can be effectively prevent to occur to loosen or fall off, reduce security risk.
In order to solve the above-mentioned technical problem, the utility model provides the following technical solutions：
A kind of drilling rod preventer, the preventer include two plug valves being serially connected, and the plug valve includes valve
Body, upper valve base, lower valve base, spool and valve rod, the valve body have receiving channel, are provided with and screw on the circumferential wall of the valve body
Hole, the hole that screws are connected to the receiving channel, and the upper valve base and the lower valve base are both secured in the receiving channel
And all have first through hole, the spool with the surface gluing, sealing of the receiving channel, the upper valve base and the lower valve base
It is located between the upper valve base and the lower valve base and the spool can rotate, the second through-hole is provided on the spool,
The valve rod be fixed on the spool and be arranged in it is described screw in hole, one end far from the spool of the valve rod is provided with
For being embedded the Hexagon hole for screwing spanner, the valve rod is for driving the valve core rotation, so that second through-hole is simultaneously
It is connected to form circulation passage or second through-hole is made to disconnect two first through hole with two first through hole；Two
The part connected point between the plug valve is interconnecting piece, and the interconnecting piece includes external thread section, internal thread segment and lock nut,
The external thread section is provided with external screw thread, and the internal thread segment and the lock nut all have tapped through hole, and the screw thread is logical
The internal thread coordinated with the external screw thread is provided in hole, the internal thread segment and the lock nut are threaded engagement in described
External thread section；The lock nut is provided with step close to one end of the internal thread segment, and the step is in a circular table shape, described
The axis of step is parallel with the axis of the lock nut and has gap, the close lock nut of the internal thread segment
One end is provided with slot, and the slot is in a circular table shape, and the axis of the slot is overlapped with the axis of the internal thread segment, described
The busbar of rank is equal with the angle of axis with the angle of axis with the busbar of the slot, and the maximum outside diameter of the step is more than institute
The maximum inner diameter of slot is stated, the minimum outer diameter of the step is more than the minimum diameter of the slot and the maximum less than the slot
Internal diameter, when the interconnecting piece is fixed, the step is inserted into the slot and a part for the step circumferential surface and the slot
Inner surface squeeze fitting.
Further, between the bottom of the slot and the top of the step and the external thread section and described outer
Gasket is both provided between thread segment.
Further, one end far from the spool of the valve rod is provided with triangular groove, the appearance of the valve body
Face is provided with multiple scale slots, and the scale slot is correspondingly arranged angled groove, and the multiple scale slot screws hole described in
Surrounding is uniformly distributed, and one of described triangular groove end is directed toward the scale slot and for showing opening for the spool
Open angle.
The advantageous effect that the utility model is reached is：
Drilling rod preventer provided by the utility model, by the cooperation of step and slot, make internal thread segment axis and
The axis of lock nut deviates the axis of external thread section, to make the thread of internal thread segment squeeze the thread and lock of external thread section
The thread for determining nut squeezes the thread of external thread section, increases pressure and frictional force of coupling part etc., so that contact portion
It is difficult to be detached from, effectively prevent loosening or falling off between two plug valves, it is ensured that construction safety reduces security risk.
Description of the drawings
In order to more clearly illustrate the technical scheme in the embodiment of the utility model, will make below to required in embodiment
Attached drawing is simply introduced, it should be apparent that, the accompanying drawings in the following description is only some realities described in the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram for the preventer that the utility model embodiment provides.
Fig. 2 is the close-up schematic view of Fig. 1
Fig. 3 is the close-up schematic view of Fig. 2；
Fig. 4 is the close-up schematic view of Fig. 2.
Reference numeral corresponds to as follows：
10- preventers；
110- plug valves；111- valve bodies；112- upper valve bases；113- lower valve bases；114- spools；115- valve rods；117- is accommodated
Channel；118- screws hole；119- first through hole；The second through-holes of 120-；122- interconnecting pieces；123- external thread sections；124- internal threads
Section；125- lock nuts；126- steps；127- slots；128- gaskets.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe.
It please refers to shown in Fig. 1, the utility model embodiment provides a kind of drilling rod preventer 10.
Wherein, preventer 10 includes two plug valves 110 being serially connected, and plug valve 110 includes valve body 111, upper valve base
112, lower valve base 113, spool 114 and valve rod 115.
Valve body 111 has receiving channel 117, is provided on the circumferential wall of valve body 111 and screws hole 118, screws hole 118 and holds
Receive channel 117 connection.
Upper valve base 112 and lower valve base 113 are both secured to be bonded in receiving channel 117 and with the surface of receiving channel 117 close
Envelope, upper valve base 112 and lower valve base 113 all have first through hole 119.
Spool 114 is located between upper valve base 112 and lower valve base 113 and spool 114 can rotate, and is arranged on spool 114
There is the second through-hole 120, valve rod 115, which is fixed on spool 114 and is arranged in, to screw in hole 118, the separate spool 114 of valve rod 115
One end is provided with for being embedded the Hexagon hole for screwing spanner.
Valve rod 115 is used for band movable valve plug 114 and rotates, so that the second through-hole 120 is connected to shape with two first through hole 119 simultaneously
At circulation passage or the second through-hole 120 is made to disconnect two first through hole 119.
The structure of plug valve 110 is referred to the prior art.
It please refers to shown in Fig. 2, the part of two plug valves 110/connection is interconnecting piece 122, and interconnecting piece 122 includes
External thread section 123, internal thread segment 124 and lock nut 125.
External thread section 123 is provided with external screw thread, and internal thread segment 124 and lock nut 125 all have tapped through hole, and screw thread is logical
The internal thread coordinated with external screw thread is provided in hole, internal thread segment 124 and lock nut 125 are threaded engagement in external thread section
123。
One end of the close internal thread segment 124 of lock nut 125 is provided with step 126, and step 126 is in a circular table shape, step
126 axis is parallel with the axis of lock nut 125 and has gap.
One end of the close lock nut 125 of internal thread segment 124 is provided with slot 127, and slot 127 is in a circular table shape, slot
127 axis is overlapped with the axis of internal thread segment 124.
Step 126 is consistent with the direction of slot 127, correspondingly, in the accompanying drawings, the diameter of step 126 is gradual from left to right
Reduce, the diameter of slot 127 is from left to right gradually reduced.
The busbar of step 126 is equal with the angle of axis with the angle of axis with the busbar of slot 127, and step 126 is most
Big outer diameter is more than the maximum inner diameter of slot 127, and the minimum outer diameter of step 126 is more than the minimum diameter of slot 127 and is less than slot
127 maximum inner diameter.
When interconnecting piece 122 is fixed, step 126 is inserted into slot 127 and a part and the slot 127 of 126 circumferential surface of step
Inner surface squeezes fitting.
It please refers to shown in Fig. 3, Fig. 4, by the cooperation of step 126 and slot 127, makes the axis and lock of internal thread segment 124
The axis for determining nut 125 deviates the axis of external thread section 123, to make the thread of internal thread segment 124 squeeze external thread section 123
Thread and the thread of lock nut 125 squeeze the thread of external thread section 123, increase interconnecting piece 122 pressure and frictional force divided
Deng so that contact portion is difficult to be detached from, effectivelying prevent loosening or falling off between two plug valves 110, it is ensured that construction safety,
Reduce security risk.
In addition, in order to improve sealing effect, between the bottom and the top of step 126 of slot 127 and external thread section
Gasket 128 is both provided between 123 and external thread section 123.
In order to allow staff easily to detect the position of spool 114, avoiding maloperation or switch not in place, this reality
It applies example and provides following scheme：One end of the separate spool 114 of valve rod 115 is provided with triangular groove, the outer surface of valve body 111
Multiple scale slots are provided with, scale slot is correspondingly arranged angled groove, and multiple scale slots uniformly divide along the surrounding for screwing hole 118
Scale slot and the opening angle for showing spool 114 are directed toward in cloth, one of triangular groove end.
Certainly, one end of plug valve 110 has external thread section 123, and there is other end internal thread segment 124 to be also can be with
, primarily to for waiting for that interconnecting piece 122 is connect with other.
Embodiment described above is only that preferred embodiments of the present invention are described, not new to this practicality
The conception and scope of type is defined, without departing from the design concept of the present utility model, ordinary skill skill in this field
Art personnel should all fall into the scope of protection of the utility model to all variations and modifications that the technical solution of the utility model is made,
The claimed technology contents of the utility model, are all documented in technology claim.
Claims (3)
1. a kind of drilling rod preventer, it is characterised in that：The preventer includes two plug valves being serially connected, the cock
Valve includes valve body, upper valve base, lower valve base, spool and valve rod, and the valve body has receiving channel, set on the circumferential wall of the valve body
It is equipped with and screws hole, the hole that screws is connected to the receiving channel, and the upper valve base and the lower valve base are both secured to the appearance
The surface gluing, sealing received in channel and with the receiving channel, the upper valve base and the lower valve base all have first through hole,
The spool is located between the upper valve base and the lower valve base and the spool can rotate, and is provided on the spool
Two through-holes, the valve rod be fixed on the spool and be arranged in it is described screw in hole, one far from the spool of the valve rod
End is provided with for being embedded the Hexagon hole for screwing spanner, and the valve rod is for driving the valve core rotation, so that described second
Through-hole is connected to form circulation passage or make second through-hole by two first through hole with two first through hole simultaneously
It disconnects；The part connected between two plug valves point is interconnecting piece, the interconnecting piece include external thread section, internal thread segment and
Lock nut, the external thread section are provided with external screw thread, and the internal thread segment and the lock nut all have tapped through hole, institute
The internal thread for being provided in tapped through hole and coordinating with the external screw thread is stated, the internal thread segment and the equal screw thread of the lock nut are nibbled
Together in the external thread section；The lock nut is provided with step close to one end of the internal thread segment, and the step is in circle
Mesa-shaped, the axis of the step is parallel with the axis of the lock nut and has gap, the internal thread segment close to described
One end of lock nut is provided with slot, and the slot is in a circular table shape, the axis of the axis of the slot and the internal thread segment
It overlaps, the busbar of the step is equal with the angle of axis with the angle of axis with the busbar of the slot, and the step is most
Big outer diameter is more than the maximum inner diameter of the slot, and the minimum outer diameter of the step is more than the minimum diameter of the slot and is less than institute
State the maximum inner diameter of slot, when the interconnecting piece is fixed, the step is inserted into the slot and one of the step circumferential surface
Divide and is bonded with the extruding of the inner surface of the slot.
2. drilling rod preventer according to claim 1, it is characterised in that：The top of the bottom of the slot and the step
It is both provided with gasket between portion and between the external thread section and the external thread section.
3. drilling rod preventer according to claim 1, it is characterised in that：One end far from the spool of the valve rod
It is provided with triangular groove, the outer surface of the valve body is provided with multiple scale slots, and the scale slot is correspondingly arranged angled recessed
Slot, the surrounding that the multiple scale slot screws hole described in are uniformly distributed, and one of described triangular groove end is directed toward
The scale slot and the opening angle for being used to show the spool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820010113.3U CN208057076U (en) | 2018-01-03 | 2018-01-03 | A kind of drilling rod preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820010113.3U CN208057076U (en) | 2018-01-03 | 2018-01-03 | A kind of drilling rod preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208057076U true CN208057076U (en) | 2018-11-06 |
Family
ID=63995487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820010113.3U Expired - Fee Related CN208057076U (en) | 2018-01-03 | 2018-01-03 | A kind of drilling rod preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208057076U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113167407A (en) * | 2018-12-06 | 2021-07-23 | 株式会社不二工机 | Flow path switching valve and method of assembling the same |
| CN113605850A (en) * | 2021-08-27 | 2021-11-05 | 赵龙龙 | Drill rod arrow-shaped check valve for oil exploitation |
-
2018
- 2018-01-03 CN CN201820010113.3U patent/CN208057076U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113167407A (en) * | 2018-12-06 | 2021-07-23 | 株式会社不二工机 | Flow path switching valve and method of assembling the same |
| CN113167407B (en) * | 2018-12-06 | 2023-05-09 | 株式会社不二工机 | Flow path switching valve and method for assembling the same |
| CN113605850A (en) * | 2021-08-27 | 2021-11-05 | 赵龙龙 | Drill rod arrow-shaped check valve for oil exploitation |
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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: 20181106 Termination date: 20200103 |