CN208594898U - A kind of mechanical switch cannula occlusion tool - Google Patents
A kind of mechanical switch cannula occlusion tool Download PDFInfo
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- CN208594898U CN208594898U CN201821348687.8U CN201821348687U CN208594898U CN 208594898 U CN208594898 U CN 208594898U CN 201821348687 U CN201821348687 U CN 201821348687U CN 208594898 U CN208594898 U CN 208594898U
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Abstract
The utility model relates to a kind of mechanical switch cannula occlusion tools, belong to petroleum, natural gas extraction drilling tool technical field.The mechanical switch cannula occlusion tool is made of sand prevention filter screen, lower contact, top connection and ball valve body: the lower contact that one end of the shell is connected through a screw thread is equipped with sand prevention filter screen；The other end of shell is threaded with top connection；Top connection internal whorl is connected with central tube；Stripper loop is fixed with by screw on the periphery of central tube；Stripper loop side is set with by rubber pad sets packing element；The stripper loop other side is threaded with slips；The mechanical switch cannula occlusion tool, it is ingenious in design；Solve the problems, such as that the operating procedure that existing calker has is complicated, security risk is high and cannot multiple operation, meet the needs of enterprise's production and application.
Description
Technical field
The utility model relates to a kind of mechanical switch cannula occlusion tools, belong to petroleum, natural gas extraction drilling tool skill
Art field.
Background technique
It in petroleum, natural gas exploration field, carries out in the processes such as kill-job, replacing well head, need to use cannula occlusion tool will
After down-hole casing blocks, then it is transformed operation.Existing calker is completed after blocking, and when being unsealed, needs first to suppress,
Blocking is shot down again, keeps casing unimpeded, then detection set overpressure.If there is normal pressure, first forward extrusion well, recycling blocks work
Tool grinds off calker brill.After this causes capping tools to block operation each time, require the calker more renewed or
It is proposed tool replaces blocking or blocking part, cannot multiple operation, therefore there are complex process, the activity duration is long, operation at
The problems such as this is high.Existing calker kills casing there is also locking tension simultaneously and well head suppresses the blocking for shooting down calker
When, pressure crosses conference and causes to damage to casing, and blocks after suppressing and easily fall into underground, causes asking with security risk in well
Topic, it is therefore necessary to a kind of calker is researched and developed, to solve the problem above that existing calker has.
Summary of the invention
It is an object of the invention to: provide that a kind of structure is simple, ingenious in design, to solve the behaviour that existing calker has
Make complex process, security risk it is high and cannot multiple shop problem mechanical switch cannula occlusion tool.
The technical solution of the utility model is:
A kind of mechanical switch cannula occlusion tool, it by sand prevention filter screen, lower contact, top connection, shell, central tube,
Packing element, bottom sealing socket, upper seal support, valve body support and ball valve body is set to constitute；It is characterized by: one end of the shell
The lower contact being connected through a screw thread is equipped with sand prevention filter screen；The other end of shell is threaded with top connection；Outside top connection
Periphery on be evenly arranged with multiple lower friction blocks；Top connection internal whorl is connected with central tube；On the periphery of central tube
Stripper loop is fixed with by screw；Stripper loop side is set with by rubber pad sets packing element；Set packing element one end and top connection
End contradict connection；It sets the packing element other end and stripper loop is contradicted and connected；The stripper loop other side is threaded with slips；Slips
Multiple upper friction blocks are evenly arranged on periphery；It is equipped in the shell of central tube side by screw and valve body support activity
Ball valve body；Sliding is equipped with and stirs pin frame on valve body support；It is filled in the shell of ball valve body side by lower sleeve gasket cylinder and washer
There is bottom sealing socket, one end of bottom sealing socket extends to inside valve body support and connect with ball valve body slip-stick；Ball valve body is another
Upper seal support is fixed in the valve body support of side；Upper seal support is slidably connected with pin frame is stirred；The shell of upper seal support side
It is interior that upper sleeve gasket cylinder is fixed with by guide pin；Sliding is equipped with switching sliding sleeve between upper sleeve gasket cylinder and upper seal support；Switch
Sliding sleeve is slidably connected with guide pin；One end of switching sliding sleeve connects in succession with pin frame active card is stirred；The other end of switching sliding sleeve
It is connect in succession with central tube active card.
Described switching sliding sleeve one end is internally provided with clamping annular groove；The switching sliding sleeve other end be provided with clamping it is convex
Edge；It is clamped on the periphery of flange side and is evenly arranged with symmetrical multiple guiding slide openings；Switching sliding sleeve one end passes through clamping annular groove
It is clamped and connects with one end of central tube；The switching sliding sleeve other end is by clamping flange and stirs the clamping connection of pin frame.
The upper seal support and bottom sealing socket is cylinder；At one end bead of upper seal support and bottom sealing socket one
Cone seal mouth is respectively arranged at the bead of end；Ball valve body and each cone seal mouth interval are tightly connected；One end of bottom sealing socket
Sliding annular groove is provided on periphery；The one end for stirring pin frame is slidably connected by sliding annular groove with bottom sealing socket；Upper seal support
Assembly annular groove is provided on the periphery of one end；Upper seal support is clamped by one end of assembly annular groove and valve body support and is connected；
Multiple guide pins are uniformly fixed on the periphery of the upper seal support other end；Guide pin passes through the guiding slide opening of switching sliding sleeve
It is fixedly connected afterwards with upper sleeve gasket cylinder；The guiding slide opening of guide pin and switching sliding sleeve is slidably connected.
The lower friction block and upper friction block are made of assembly pin, spring leaf, friction plate and assembling block；Described
Assembling block is cavity body, and assembling block inside is equipped with friction plate by spring leaf, and friction plate extends to the outer end of assembling block；Assembly
The two sides of block are respectively arranged with assembly pin.
The slips is made of claw, assembly cylinder and elastic ring；One end of assembly cylinder is movably installed with more by pin
A claw assembles and elastic ring is housed by screw on cylinder；The inner wall of elastic ring and each claw, which contradict, to be connected；The dress of elastic ring side
Friction block mounting groove is evenly equipped on periphery with cylinder.
The central tube is step type；One end of central tube is provided with clamping flange；One end of central tube passes through clamping
The clamping annular groove active card of flange and switching sliding sleeve connects in succession；The middle part of central tube is fixed with stripper loop by screw；Stripper loop
External screw thread is respectively arranged on the central tube of two sides；Central tube is threadedly coupled with top connection and slips respectively by external screw thread；In
The conflict conical surface is provided on the other end periphery of heart pipe.
Valve body support is fixed with by screw in the shell；Ball is equipped with by pilot hole activity in valve body support
Valve body；The support monomer that valve body support is arranged by symmetry shape fastens；Connect between support monomer by the way that screw is fixed
It connects；Symmetry shape is provided with pin frame sliding slot on valve body support；The outside of valve body support is equipped with by the sliding of pin frame sliding slot and is stirred
Sell frame.
The ball valve body is internally provided with through hole；The two sides side of ball valve body is plane；Two side plane of ball valve body
Be provided centrally with and ship and resell on another market；Respectively ship and resell on another market side plane on be provided with and stir sliding slot；Ball valve body is movably arranged on valve by shipping and reselling on another market
On body support.
The pin frame monomer that pin frame is arranged by two symmetry shapes of stirring fastens；Pass through screw between pin frame monomer
It is fixedly connected；Pin frame monomer is made of upper ring body, lower ring body and slide bar；Slide bar is provided between upper ring body and lower ring body；Each cunning
Finger is respectively arranged on the inside of bar；Each finger extends respectively to stirring inside sliding slot and being slidably connected therewith on ball valve body；
Upper ring body is internally provided with clamping annular groove；Pin frame is stirred to connect by the clamping of the clamping flange of clamping annular groove and switching sliding sleeve.
Utility model has the advantages that
The mechanical switch cannula occlusion tool, it is ingenious in design, easy to use, in the effect of external tool string when work
Under, when central tube being driven to rotate in the forward direction, it can be realized and set and block function；When central tube being driven to reversely rotate, it can be realized
The function of deblocking and de-plugging；And the calker can come into operation repeatedly；Solves the operation that existing calker has
Complex process, security risk it is high and cannot multiple operation the problem of, meet the needs of enterprise's production and application.
Detailed description of the invention
Fig. 1 is the open state structural schematic diagram of the utility model；
Fig. 2 is the schematic cross-sectional view in another section of the utility model；
Fig. 3 is the structural schematic diagram of the switching sliding sleeve of the utility model；
Fig. 4 is the structural schematic diagram of the upper seal support of the utility model；
Fig. 5 is the structural schematic diagram of the bottom sealing socket of the utility model；
Fig. 6 is the lower friction block of the utility model and the structural schematic diagram of upper friction block；
Fig. 7 is the structural schematic diagram of the slips of the utility model；
Fig. 8 is the structural schematic diagram of the central tube of the utility model；
Fig. 9 is the structural schematic diagram of the valve body support of the utility model；
Figure 10 is the structural schematic diagram of the support monomer of the utility model；
Figure 11 is the axis geodesic structure schematic diagram of the ball valve body of the utility model；
Figure 12 is the schematic cross-sectional view of the ball valve body of the utility model；
Figure 13 is the side structure schematic diagram of the ball valve body of the utility model；
Figure 14 is the ball valve body, valve body support and the assembling structure schematic diagram for stirring pin frame of the utility model；
Figure 15 is the structural schematic diagram for stirring pin frame of the utility model；
Figure 16 is the structural schematic diagram of the pin frame monomer of the utility model；
Figure 17 sets structural schematic diagram for the utility model.
In figure: 1, sand prevention filter screen, 2, lower contact, 3, top connection, 4, shell, 5, central tube, 6, set packing element, 7, under it is close
Envelope seat, 8, upper seal support, 9, valve body support, 10, ball valve body, 11, lower friction block, 12, screw, 13, stripper loop, 14, slips,
15, upper friction block, 16, stir pin frame, 17, lower sleeve gasket cylinder, 18, washer, 19, upper sleeve gasket cylinder, 20, switching sliding sleeve, 21, dress
With pin, 22, spring leaf, 23, friction plate, 24, assembling block, 25, clamping annular groove, 26, clamping flange, 27, external screw thread, 28, support
Touch the conical surface, 29, pilot hole, 30, pin frame sliding slot, 31, through hole, 32, ship and resell on another market, 33, stir sliding slot, 34, upper ring body, 35, lower ring
Body, 36, slide bar, 37, finger, 38, cone seal mouth, 39, sliding annular groove, 40, assembly annular groove, 41, rubber cushion cover, 42, pin frame
Monomer, 43, guide pin, 44, guiding slide opening, 45, claw, 46, assembly cylinder, 47, elastic ring, 48, pin, 49, friction block peace
Tankage, 50, support monomer.
Specific embodiment
The mechanical switch cannula occlusion tool by sand prevention filter screen 1, lower contact 2, top connection 3, shell 4, central tube 5,
It sets packing element 6, bottom sealing socket 7, upper seal support 8, valve body support 9 and ball valve body 10 and constitutes (referring to Figure of description 1).
The lower contact 2 that one end of shell 4 is connected through a screw thread is equipped with sand prevention filter screen 1；Sand prevention filter screen 1 have prevent
Impurity (such as sandstone) in petroleum enters the effect of the calker, damages after entering its inside so as to avoid sandstone
The problem of calker.
The other end of shell 4 is threaded with top connection 3；Multiple lower frictions are evenly arranged on the periphery of top connection 3
Block 11；Lower friction block 11 and upper friction block 15 are made of assembly pin 21, spring leaf 22, friction plate 23 and assembling block 24 (joins
See Figure of description 6).
Assembling block 24 is cavity body, passes through spring leaf 22 inside assembling block 24 and is equipped with friction plate 23, friction plate 23 extends
To the outer end of assembling block 24；The two sides of assembling block 24 are respectively arranged with assembly pin 21.Lower friction block 11 passes through assembly pin 21
It is fixedly mounted on the periphery of top connection 3.Friction plate 23 is by elastic material and resistance to is milled into；The calker tripping in process
In, under the action of spring leaf 22, friction plate 23 contradicts with down-hole casing connect always；Under thrust, thrust can overcome
After the frictional force of friction plate 23, the calker is pushed to be displaced downwardly to designated position along down-hole casing；When the calker tripping in
To after designated position, when shell 4 and top connection 3 generate the trend of movement from internal stress, lower friction block 11 and down-hole casing it
Between frictional force top connection 3 and shell 4 can be hindered to act, and then make down-hole casing and lower friction block 11, top connection 3 and shell
4 keep relatively fixed connection, so can avoid shell 4 and top connection 3 rotates easily influences calker work and ask
The generation of topic.
3 internal whorl of top connection is connected with central tube 5；Central tube 5 is stepped (referring to Figure of description 8)；Central tube 5
One end be provided with clamping flange 26；The middle part of central tube 5 is fixed with stripper loop 13 by screw 12；In 13 two sides of stripper loop
External screw thread 27 is respectively arranged on heart pipe 5.It is provided on the other end periphery of central tube 5 and contradicts the conical surface 28.Due to central tube 5
It is threadedly coupled by external screw thread 27 with top connection 3；Therefore when central tube 5 rotates under the action of external tool, 5 energy of central tube
Enough corresponding top connections 3 move up and down.
13 side of stripper loop is equipped with by rubber cushion cover 41 and sets packing element 6；Set the end of packing element 6 one end and top connection 3
Contradict connection；It sets 6 other end of packing element and stripper loop 13 is contradicted and connected；When central tube 5 is moved down relative to top connection 3, center
Pipe 5 can be squeezed under the cooperation of top connection 3 by stripper loop 13 and set packing element 6 and rubber cushion cover 41, and packing element 6 and rubber are set
Cushion cover 41 will generate radial deformation after being pressurized, to achieve the purpose that seal down-hole casing.
Slips 14 is threaded with by external screw thread 27 on the central tube 5 of 13 other side of stripper loop；Slips 14 by claw 45,
It assembles cylinder 46 and elastic ring 47 constitutes (referring to Figure of description 7).
One end of assembly cylinder 46 is movably installed with multiple claws 45 by pin 48, and the inside of claw 45 is in inclined-plane, when it
It will be strutted outward around pin 48 to complete the anchoring work of claw when inside is squeezed.
It assembles and elastic ring 47 is equipped with by screw 12 on cylinder 46；The inner wall of elastic ring 47 and each claw 45 contradict connection (ginseng
See Figure of description 7)；Under the action of elastic ring 47, each claw 45 has the trend mutually drawn close；To make the blocking work
When moving up or move down in down-hole casing, each claw 45 can remain the state drawn close, and cover so as to avoid it with underground
The problem of " bite ", occurs for pipe.
Friction block mounting groove 49 is evenly equipped on the periphery of the assembly cylinder 46 of 47 side of elastic ring.By rubbing on assembly cylinder 46
Cleaning block mounting groove 49 is equipped with multiple upper friction blocks 15.After the calker is lowered into the designated position of down-hole casing, rub upper
Under the action of cleaning block 15, friction plate 23 contradicts with down-hole casing connect always, so that 14 stress of slips be made to generate becoming for movement
When gesture, the frictional force between upper friction block 15 and down-hole casing can hinder the movement of slips 14, so make down-hole casing with it is upper
Friction block 15 and the relatively fixed connection of the holding of slips 14, so i.e. avoidable slips 14 rotate influence the calker easily
The generation of work problem.
Valve body support 9 is fixed with by screw 12 in the shell 4 of 5 side of central tube；Pass through assembly in valve body support 9
The activity of hole 29 equipped with ball valve body 10(referring to Figure of description 1 and 11).
Ball valve body 10 is internally provided with through hole 31(referring to Figure of description 12)；When ball valve body 10 through hole 31 with
When bottom sealing socket 7 is connected to upper seal support 8, the calker, that is, in the open state, petroleum can be passed through by through hole 31
The calker.It is (attached referring to specification when 10 Forced rotation of ball valve body is to bottom sealing socket 7 and the sealed connection of upper seal support 8
Figure 17), which is in sealing blocked state.
The two sides side of ball valve body 10 is plane；Being provided centrally with of 10 liang of side planes of ball valve body ships and resell on another market 32；Respectively ship and resell on another market 32
It is provided in the plane of side and stirs sliding slot 33(referring to Figure of description 13)；Ball valve body 10 32 is movably arranged on valve by shipping and reselling on another market
On body support 9.Stirring sliding slot 33 is long sliding slot, and the purpose for stirring sliding slot 33 is arranged such and is: so as to stir 16 band of pin frame
For dynamic finger 37 when vertical direction moves back and forth, finger 37 can drive ball valve body 10 around shipping and reselling on another market 32 turns by stirring sliding slot 33
It moves, and then avoid finger 37 not driving the generation of 10 rotational problems of ball valve body by stirring sliding slot 33.
Valve body support 9 is fastened by the support monomer 50 being arranged by symmetry shape；Pass through between support monomer 50
Screw 12 is fixedly connected (referring to Figure of description 9 and 10)；By valve body support 9 be set as two support monomers 50 fasten and
At purpose be: to facilitate the installation of ball valve body 10 to assemble.
Symmetry shape is provided with pin frame sliding slot 30 on valve body support 9；The outside of valve body support 9 is sliding by pin frame sliding slot 30
Dynamic be equipped with stirs pin frame 16(referring to Figure of description 14).
The pin frame monomer 42 that pin frame 16 is arranged by two symmetry shapes is stirred to fasten；Pass through screw between pin frame monomer 42
12 are fixedly connected (referring to Figure of description 15 and 16)；
Pin frame monomer 42 is made of upper ring body 34, lower ring body 35 and slide bar 36；It is arranged between upper ring body 34 and lower ring body 35
There is slide bar 36；Pin frame 16 is stirred to be slidably connected by slide bar 36 with the pin frame sliding slot 30 on valve body support 9.
The inside of each slide bar 36 is respectively arranged with finger 37；Each finger 37 extends respectively to stir sliding slot on ball valve body 10
33 inside are simultaneously slidably connected therewith；Upper ring body 34 is internally provided with clamping annular groove 25；It stirs pin frame 16 and passes through clamping annular groove 25
It is clamped and connects with the clamping flange 26 of switching sliding sleeve 20.
It is driven during switching sliding sleeve 20 can so moved back and forth in the vertical direction and stirs 16 synchronizing moving of pin frame,
And then make it through finger 37 and ball valve body 10 is driven to rotate, to achieve the purpose that open or close calker.
Bottom sealing socket 7(is fixed with referring to explanation by lower sleeve gasket cylinder 17 and washer 18 in the shell 4 of 10 side of ball valve body
Attached drawing 1).
Bottom sealing socket 7 is cylinder (referring to attached drawing 5 is illustrated)；Cone seal is provided at one end bead of bottom sealing socket 7
Mouth 38；Sliding annular groove 39 is provided on one end periphery of bottom sealing socket 7；Stir one end of pin frame 16 by sliding annular groove 39 with
Bottom sealing socket 7 is slidably connected；It stirs pin frame 16 to move back and forth in moving process, can slidably reciprocate along sliding annular groove 39, thus
Bottom sealing socket 7 is avoided to hinder to stir the generation of the mobile problem of pin frame 16.
One end of bottom sealing socket 7 extends to inside valve body support 9, passes through 10 interval of cone seal mouth 38 and ball valve body
It is tightly connected；The radian of cone seal mouth 38 is consistent with the radian on 10 surface of ball valve body, can so make ball valve body 10 and cone
Shape seal 38 is fitted and connected, and then when the calker being made to be in blocked state, can will be fully sealed, and then avoid and let out
The generation of leakage problem.
Upper seal support 8(is fixed in the valve body support 9 of 10 other side of ball valve body referring to Figure of description 1)；Upper sealing
Seat 8 is cylinder (referring to Figure of description 4)；Cone seal mouth 38 is provided at one end bead of upper seal support 8；Upper seal support
8 are intermittently tightly connected by cone seal mouth 38 with ball valve body 10.Assembly annular groove is provided on the periphery of 8 one end of upper seal support
40；Upper seal support 8 is clamped by one end of assembly annular groove 40 and valve body support 9 and is connected.Upper seal support 8 passes through assembly annular groove 40
Keep relatively fixed with valve body support 9.
Multiple guide pin 43(are uniformly fixed on the periphery of 8 other end of upper seal support referring to Figure of description 4)；On
Upper sleeve gasket cylinder 19(is fixed with referring to Figure of description 2 by guide pin 43 in the shell 4 of 8 side of seal receptacle).
Between upper sleeve gasket cylinder 19 and upper seal support 8 sliding equipped with switching sliding sleeve 20(referring to Figure of description 1 and 2)；It opens
Close 20 one end of sliding sleeve is internally provided with clamping annular groove 25(referring to Figure of description 3)；20 other end of switching sliding sleeve is provided with
It is clamped flange 26；It is clamped on the periphery of 26 side of flange and is evenly arranged with multiple guiding slide openings 44.
Guide pin 43 on upper seal support 8 passes through guiding slide opening 44 and is fixedly connected with upper sleeve gasket cylinder 19 (referring to explanation
Book attached drawing 2)；Guide pin 43 and the guiding slide opening 44 of switching sliding sleeve 20 are slidably connected.The purpose that guide pin 43 is arranged is:
First is that providing installation foundation for upper sleeve gasket cylinder 19；Second is that being opened under the guidance of guide pin 43 and guiding slide opening 44 when work
Closing sliding sleeve 20 can smoothly move axially in the axial direction, generate rotational problems so as to avoid switching sliding sleeve 20
Occur.
20 one end of switching sliding sleeve is clamped by one end of clamping annular groove 25 and central tube 5 and is connected.When central tube 5 is rotating simultaneously
During moving up and down simultaneously, central tube 5 can keep relatively rotating with switching sliding sleeve 20, and be driven on switching sliding sleeve 20 simultaneously
Lower movement.
20 other end of switching sliding sleeve is connect by being clamped flange 26 with 25 fixing card of clamping annular groove for stirring pin frame 16 in succession.It opens
It closes during sliding sleeve 20 moves up and down under the action of central tube 5, can drive to stir pin frame 16 and synchronize and move up and down.
When the mechanical switch cannula occlusion tool is set, under the auxiliary of other tool strings, under fall in down-hole casing
Designated position.It contradicts and connects in the friction plate 23 of lower friction block 11 and down-hole casing at this time, to make shell 4 and top connection 3
Keep relatively fixed with down-hole casing by lower friction block 11.Furthermore under the action of friction plate 23 of upper friction block 15, slips
14 keep relatively fixed with down-hole casing by upper friction block 15.
After falling on designated position under the calker, tool string rotates forward central tube 5(referring to Figure of description 17), by
In the threaded connection that central tube 5 and slips 14 and top connection 3 are kept；And slips 14 and top connection 3 keep opposite with down-hole casing
It is fixed；It when central tube 5 rotates forward, will be moved down with respect to slips 14 and top connection 3, and in 5 folding process of central tube, pass through conflict
The conical surface 28 squeezes claw 45, so that the opening of claw 45 be made to be anchored on down-hole casing, stripper loop 13 is under central tube 5 at the same time
During shifting, extruding sets packing element 6, makes to set packing element 6 and radially expands, and sets to make to set the completion of packing element 6.
Furthermore in 5 folding process of central tube；It will drive stir pin frame 16 and synchronize and move down by switching sliding sleeve 20；It stirs
It sells in 16 folding process of frame, by finger 37 and stirs the drive ball valve body 10 of sliding slot 33 around 32 rotations of shipping and reselling on another market, when 10 turns of ball valve body
90 ° dynamic, when the spherical surface and upper seal support 8 and bottom sealing socket 7 of ball valve body 10 are tightly connected, ball valve body 10 blocks the calker,
Tool string stopping at this time rotating forward, and so far the calker is completed to set and block the movement of down-hole casing.
After the calker sets and block the movement of down-hole casing, when need to unseal, tool string rotates backward central tube
5；When central tube 5 rotates backward, it will be moved up with respect to slips 14 and top connection 3.
During central tube 5 moves up, contradicts the conical surface 28 and gradually disengaged with extruding claw 45, claw 45 is made to lose branch
Support, under the elastic force effect of elastic ring 47, claw 45 automatically resets and disengages with down-hole casing, to release anchoring；With
This sets the extruding that packing element 6 will lose stripper loop 13, and finally at itself during stripper loop 13 moves up with central tube 5 simultaneously
It is restored under the action of elastic force, to achieve the purpose that deblocking.
Furthermore during central tube 5 moves up；It will drive stir pin frame 16 and synchronize and move up by switching sliding sleeve 20；It stirs
During pin frame 16 moves up, by finger 37 and stir sliding slot 33 and drive ball valve body 10 around 32 rotations of shipping and reselling on another market, make ball valve body 10 by
Step resets, and after central tube 5 moves up reset, the through hole 31 of ball valve body 10 is connected to upper seal support 8 and bottom sealing socket 7；Ball at this time
The calker completes deblocking movement, then above mentions the calker, can be proposed down-hole casing.
The mechanical switch cannula occlusion tool, it is ingenious in design, easy to use, it can come into operation repeatedly；It solves existing
Operating procedure that calker has is complicated, security risk is high and cannot multiple operation the problem of, meet enterprise's production and application
Needs.
Claims (9)
1. a kind of mechanical switch cannula occlusion tool, it is by sand prevention filter screen (1), lower contact (2), top connection (3), shell
(4), central tube (5), set packing element (6), bottom sealing socket (7), upper seal support (8), valve body support (9) and ball valve body (10) structure
At；It is characterized by: the lower contact (2) that one end of the shell (4) is connected through a screw thread is equipped with sand prevention filter screen (1)；
The other end of shell (4) is threaded with top connection (3)；Multiple lower friction blocks are evenly arranged on the periphery of top connection (3)
(11)；Top connection (3) internal whorl is connected with central tube (5)；It is fixed with point on the periphery of central tube (5) by screw (12)
Spacer ring (13)；Stripper loop (13) side is equipped with by rubber cushion cover (41) and sets packing element (6)；It sets packing element (6) one end and above connects
The end of head (3) contradicts connection；It sets packing element (6) other end and stripper loop (13) contradicts and connect；Stripper loop (13) other side spiral shell
Line is connected with slips (14)；Multiple upper friction blocks (15) are evenly arranged on slips (14) periphery；The shell of central tube (5) side
Ball valve body (10) are housed by screw (12) and valve body support (9) activity in body (4)；It slides and is equipped on valve body support (9)
Stir pin frame (16)；Lower sealing is housed by lower sleeve gasket cylinder (17) and washer (18) in the shell (4) of ball valve body (10) side
Seat (7), one end of bottom sealing socket (7) extend to inside valve body support (9) and connect with ball valve body (10) slip-stick；Ball valve body
(10) upper seal support (8) are fixed in the valve body support (9) of the other side；Upper seal support (8) connects with pin frame (16) sliding is stirred
It connects；Upper sleeve gasket cylinder (19) are fixed with by guide pin (43) in the shell (4) of upper seal support (8) side；Upper sleeve gasket cylinder
(19) sliding is equipped with switching sliding sleeve (20) between upper seal support (8)；It lives with pin frame (16) are stirred one end of switching sliding sleeve (20)
Dynamic clamping connection；The other end of switching sliding sleeve (20) connects in succession with central tube (5) active card；Switching sliding sleeve (20) and guide pin
(43) it is slidably connected.
2. a kind of mechanical switch cannula occlusion tool according to claim 1, it is characterised in that: the switching sliding sleeve
(20) being internally provided with for one end is clamped annular groove (25)；Switching sliding sleeve (20) other end is provided with clamping flange (26)；Clamping
Multiple guiding slide openings (44) are evenly arranged on the periphery of flange (26) side；Switching sliding sleeve (20) one end passes through clamping annular groove
(25) it is connected with the one end of central tube (5) clamping；Switching sliding sleeve (20) other end is by clamping flange (26) and stirs pin frame
(16) clamping connection.
3. a kind of mechanical switch cannula occlusion tool according to claim 2, it is characterised in that: the upper seal support
(8) and bottom sealing socket (7) is cylinder；It is punished at one end bead of upper seal support (8) with one end bead of bottom sealing socket (7)
It is not provided with cone seal mouth (38)；Ball valve body (10) and each cone seal mouth (38) interval are tightly connected；Bottom sealing socket (7)
Sliding annular groove (39) is provided on the periphery of one end；The one end for stirring pin frame (16) passes through sliding annular groove (39) and bottom sealing socket
(7) it is slidably connected；Assembly annular groove (40) is provided on the periphery of upper seal support (8) one end；Upper seal support (8) passes through mounting ring
One end of slot (40) and valve body support (9), which is clamped, to be connected；It is uniformly fixed on the periphery of upper seal support (8) other end multiple
Guide pin (43)；The guiding slide opening (44) that guide pin (43) passes through switching sliding sleeve (20) is fixed with upper sleeve gasket cylinder (19) afterwards
Connection；Guide pin (43) and the guiding slide opening (44) of switching sliding sleeve (20) are slidably connected.
4. a kind of mechanical switch cannula occlusion tool according to claim 3, it is characterised in that: the lower friction block
(11) it is made of with upper friction block (15) assembly pin (21), spring leaf (22), friction plate (23) and assembling block (24)；It is described
Assembling block (24) be cavity body, is equipped with friction plate (23) by spring leaf (22) inside assembling block (24), friction plate (23)
Extend to the outer end of assembling block (24)；The two sides of assembling block (24) are respectively arranged with assembly pin (21).
5. a kind of mechanical switch cannula occlusion tool according to claim 4, it is characterised in that: the slips (14)
It is made of claw (45), assembly cylinder (46) and elastic ring (47)；One end of assembly cylinder (46) is movably installed with by pin (48)
Multiple claws (45) assemble and elastic ring (47) are housed by screw (12) on cylinder (46)；The inner wall and each claw of elastic ring (47)
(45) connection is contradicted；Friction block mounting groove (49) are evenly equipped on the periphery of the assembly cylinder (46) of elastic ring (47) side.
6. a kind of mechanical switch cannula occlusion tool according to claim 5, it is characterised in that: the central tube
It (5) is step type；One end of central tube (5) is provided with clamping flange (26)；One end of central tube (5) passes through clamping flange (26)
It is connect in succession with clamping annular groove (25) active card of switching sliding sleeve (20)；The middle part of central tube (5) is fixed with point by screw (12)
Spacer ring (13)；External screw thread (27) are respectively arranged on the central tube (5) of stripper loop (13) two sides；Central tube (5) passes through external screw thread
(27) it is threadedly coupled respectively with top connection (3) and slips (14)；The conflict conical surface is provided on the other end periphery of central tube (5)
(28).
7. a kind of mechanical switch cannula occlusion tool according to claim 6, it is characterised in that: the shell (4)
It is interior that valve body support (9) are fixed with by screw (12)；Ball valve body is equipped with by pilot hole (29) activity in valve body support (9)
(10)；The support monomer (50) that valve body support (9) is arranged by symmetry shape fastens；Support monomer passes through between (50)
Screw (12) is fixedly connected；Symmetry shape is provided with pin frame sliding slot (30) on valve body support (9)；The outside of valve body support (9)
It is equipped with by pin frame sliding slot (30) sliding and stirs pin frame (16).
8. a kind of mechanical switch cannula occlusion tool according to claim 7, it is characterised in that: the ball valve body
(10) be internally provided with through hole (31)；The two sides side of ball valve body (10) is plane；In (10) two side plane of ball valve body
The heart is provided with ship and resell on another market (32)；Respectively ship and resell on another market (32) side plane on be provided with and stir sliding slot (33)；Ball valve body (10) is by shipping and reselling on another market
(32) it is movably arranged on valve body support (9).
9. a kind of mechanical switch cannula occlusion tool according to claim 8, it is characterised in that: described stirs pin frame
(16) it is fastened by the pin frame monomer (42) that two symmetry shapes are arranged；It sells and connects between frame monomer (42) by the way that screw (12) are fixed
It connects；Pin frame monomer (42) is made of upper ring body (34), lower ring body (35) and slide bar (36)；Upper ring body (34) and lower ring body (35) it
Between be provided with slide bar (36)；Finger (37) are respectively arranged on the inside of each slide bar (36)；Each finger (37) extends respectively to ball valve
Stirring sliding slot (33) inside and being slidably connected therewith on body (10)；Upper ring body (34) is internally provided with clamping annular groove (25)；
Pin frame (16) are stirred to connect by the clamping of the clamping flange (26) of clamping annular groove (25) and switching sliding sleeve (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821348687.8U CN208594898U (en) | 2018-08-21 | 2018-08-21 | A kind of mechanical switch cannula occlusion tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821348687.8U CN208594898U (en) | 2018-08-21 | 2018-08-21 | A kind of mechanical switch cannula occlusion tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208594898U true CN208594898U (en) | 2019-03-12 |
Family
ID=65605138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821348687.8U Expired - Fee Related CN208594898U (en) | 2018-08-21 | 2018-08-21 | A kind of mechanical switch cannula occlusion tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208594898U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108716378A (en) * | 2018-08-21 | 2018-10-30 | 长江大学 | A kind of mechanical switch cannula occlusion tool |
-
2018
- 2018-08-21 CN CN201821348687.8U patent/CN208594898U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108716378A (en) * | 2018-08-21 | 2018-10-30 | 长江大学 | A kind of mechanical switch cannula occlusion tool |
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| 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: 20190312 Termination date: 20210821 |