Electrodrill cable elasticity helps sealing structure
Technical field
This utility model belongs to field of petroleum exploitation, helps sealing knot in particular to a kind of electrodrill cable elasticity
Structure.
Background technology
Downhole electric drilling tool is the drilling equipment with submersible electric motor in driving by bottom hole bit, can be used for straight well, determines
To well and horizontal well operations.Electrodrill passes through electric power for driving force, and main advantage has:Compare typical well, the rotating speed of drilling tool,
Moment of torsion and other specification are unrelated with the injection rate of drilling fluid, viscosity and physicochemical property, only relevant with motor performance;Compared to tradition
Helicoid hydraulic motor and turbine bore, with reacting cycle can be carried out;The power supply that device for subsurface measuring is alternatively arranged as using driven by power makes
With the working time of measuring instrument can be made to lengthen significantly.
Operationally, the electric power of electrodrill needs to pass to downhole electric machine from ground by cable, so needing to general
Logical drilling rod is transformed, and the method for adopting now is in two ends of drill erection joint pipe nipple, is provided with cable plug in pipe nipple.When
During jointed rod, cable plug completes grafting simultaneously.In drilling operation course, plug is powered always, due to going back in drilling rod
Have full of drilling fluid, if at this moment drilling fluid entrance plug will cause short circuit, cause the damage of electrodrill, it is also possible to can make
Injures and deaths into personnel.So, how to prevent the key technology that plug water inlet is electrodrill success or not at work.
In view of this, the design people develops one according to the production design experiences for being engaged in this area and association area for many years
Plant electrodrill cable elasticity and help sealing structure, to solving the problems, such as prior art.
Utility model content
The purpose of this utility model is to be that providing a kind of electrodrill cable elasticity helps sealing structure, its reliable operation,
Can prevent into water, realize quickly installing and dismantling, overcome the defect of prior art.
For this purpose, the utility model proposes a kind of electrodrill cable elasticity helps sealing structure, which is provided with a female joint pipe nipple
And a male joint pipe nipple, a female is fixed with the female joint pipe nipple, and a male plug is installed in the male joint pipe nipple
Head, wherein:
The front end face of the female is arranged with a caulking groove, is provided with interior conducting strip on the medial wall of the caulking groove, its groove
Elastomeric seal portions are installed at mouthful, in the female, are additionally provided with a downside cable, one end of the downside cable with described
Interior conducting strip electrical connection;
The rear end face of the public plug is convexly equipped with a connection-peg, is embedded with outer conducting strip on the lateral surface of the connection-peg,
One upside cable is separately installed inside which, one end of the upside cable is electrically connected with the outer conducting strip;
When one end of the public plug is corresponding to be connected with one end of the female, the front end of the connection-peg is corresponding
Sealing is inserted in the caulking groove, and the interior conducting strip is contacted with the outer conducting strip, and the rear end of the connection-peg is then corresponding
The elastomeric seal portions are compressed, and mutually closely connected with the elastomeric seal portions, the bottom land of the caulking groove and the front end of the connection-peg
Between formed closing chamber can fill insulation fat.
Electrodrill cable elasticity as above helps sealing structure, and wherein, being additionally provided with one in the public plug can be with institute
State the L-type passage that closing chamber is connected, one end of the L-type passage is located on the side wall of the public plug, its other end then position
On the front end face of the connection-peg.
Electrodrill cable elasticity as above helps sealing structure, and wherein, the side wall of the female joint pipe nipple is provided with
First hole, is correspondingly embedded with one first square head screw in the first hole, the square head screw passes through the first positioner
The female is fixed in the female joint pipe nipple.
Electrodrill cable elasticity as above helps sealing structure, and wherein, first positioner includes one the
One bolt and a convex portion for being arranged at the female lateral surface, first bolt are arranged in the convex portion and institute successively
State the screw rod of the first square head screw, and the screw rod bolt with first square head screw, wherein, the nut of first bolt
A packing ring is provided between the convex portion.
Electrodrill cable elasticity as above helps sealing structure, and wherein, the side wall of the male joint pipe nipple is provided with
Second hole, is correspondingly arranged on one second square head screw in the second hole, second square head screw is positioned by second
Device is fixed on the public plug in the male joint pipe nipple.
Electrodrill cable elasticity as above helps sealing structure, and wherein, second positioner includes one the
Two bolts, a plug briquetting and one are arranged at the projection of the public plug lateral surface, and second bolt is arranged in institute successively
State plug briquetting and second square head screw, and be spirally connected fixation, wherein, described with the screw rod of second square head screw
The screw rod end of two square head screws, the side of the plug briquetting are respectively formed with a gap, and the projection is correspondingly embedded at two
In the gap, wherein, a packing ring is provided between the nut of second bolt and the plug briquetting.
Electrodrill cable elasticity as above helps sealing structure, wherein, is provided with a cloth vertically in the female
Wire casing, the outer surface of the front end bottom land of the wiring groove adjacent to the interior conducting strip, its rear end notch are located at the female
Rear end face, the leading portion of the downside cable stretched in the wiring groove, the copper core head of its front end and the interior conducting strip welding
The rear end face of the female is stretched out in connection, its back segment through the rear end notch, in the downside cable and the wiring groove
In sealing contact between the wall of side.
Electrodrill cable elasticity as above helps sealing structure, wherein, is provided with a line vertically in the public plug
Cable groove, adjacent to the outer conducting strip, its front end notch is located at the front end face of the public plug at the rear end slot bottom of the cable trough
On, the back segment of the upside cable is placed in the cable trough, and the copper core head of its rear end is welded to connect with the outer conducting strip,
Its leading portion stretches out the front end face of the public plug through the front end notch, the medial wall of the upside cable and the cable trough it
Between in sealing contact.
Electrodrill cable elasticity as above helps sealing structure, and wherein, the rear end face of the female is provided with sealing
The back-end sealing head of the downside cable is sheathed on, the front end face of the public plug is provided with before mutually being sealed with the upside cable
End seal head.
Electrodrill cable elasticity as above helps sealing structure, and wherein, at the notch of the caulking groove, ecto-entad expands
Footpath is formed with one first ring portion and one second ring portion, and the internal diameter of second ring portion is less than the internal diameter of first ring portion, and
More than the internal diameter of the caulking groove, one first ring shoulder between second ring portion and first ring portion, is formed with, which is embedding with described
One second ring shoulder is formed between the medial wall of groove;
The elastomeric seal portions include spacing collar, back-up ring and the sealing being embedded at successively in first ring portion from outside to inside
Cushion rubber, is embedded with disc spring in second ring portion, and the disc spring two ends are takeed on second ring and the O-ring seal contacts,
The leading portion of the connection-peg is the cylindrical section matched with the medial wall of the caulking groove, and its back segment is expanding to be formed with a shoulder, when
The connection-peg sealing is inserted in the caulking groove, and the shoulder can correspondingly push the back-up ring, O-ring seal and disc spring, make institute
State O-ring seal to compress and mutually closely connected with the connection-peg.
The electrodrill cable elasticity that this utility model is provided helps sealing structure, by arranging female joint pipe nipple and male joint
Pipe nipple, by caoutchouc elasticity sealing connection-peg extruding under elastic deformation, then hold tightly connection-peg outside, make caulking groove with
Realization sealing between connection-peg, prevents the drilling fluid of outside from entering, and utilizes the caulking groove of female inside which slotting with public plug
Joint cooperates so that interior conducting strip contacted with each other with outer conducting strip, it is achieved that the electricity of upside cable and downside cable
Connection.
Description of the drawings
The following drawings is only intended to, in this utility model is done schematic illustration and explanation, not limit model of the present utility model
Enclose.Wherein:
Fig. 1 is the composition structural representation of female joint pipe nipple in this utility model.
Fig. 2 is the composition structural representation of male joint pipe nipple in this utility model.
Schematic diagram when Fig. 3 is female joint pipe nipple jointed rod in this utility model.
Schematic diagram when Fig. 4 is male joint pipe nipple jointed rod in this utility model.
Fig. 5 is the connection diagram of male joint pipe nipple and female joint pipe nipple in this utility model.
Fig. 6 is simplified reference view when public plug is connected initial with female in this utility model.
Fig. 7 be this utility model in public plug be connected with female after the completion of simplified reference view.
Fig. 8 is the section of structure of female in this utility model.
Fig. 9 is the close-up schematic view in Fig. 8 at H.
Figure 10 is the section of structure of public plug in this utility model.
Main element label declaration:
1 female joint pipe nipple, 11 first hole
12 first square head screw, 121 screw rod
13 first bolt, 2 male joint pipe nipple
21 second hole, 221 screw rod
22 second square head screw, 23 second bolt
24 plug briquetting, 3 female
301 convex portion, 302 packing ring
31 the first ring portions of caulking groove 311a
The first ring of the second ring portions 311c of 311b is takeed on
Conducting strip in the second rings of 311d shoulder 32
33 elastomeric seal portions, 331 spacing collar
332 back-up ring, 333 O-ring seal
334 disc spring, 34 downside cable
341 copper core, 35 wiring groove
36 back-end sealing heads
4 public plug, 401 projection
41 connection-peg, 411 shoulder
42 outer conducting strip, 44 upside cable
45 L-type passage, 46 cable trough
47 forward end seal, 5 closing chamber
51 insulation fat P gap
Specific embodiment
In order to be more clearly understood to technical characteristic of the present utility model, purpose and effect, below in conjunction with accompanying drawing and
Preferred embodiment, to the utility model proposes electrodrill cable elasticity help the specific embodiment of sealing structure, structure, spy
Levy and effect, describe in detail as after.In addition, by the explanation of specific embodiment, when can be predetermined for reaching to this utility model
The technological means and effect taken by purpose are able to more deeply specific understanding, but institute's accompanying drawing is only to provide and refers to and explanation
With, not be used for this utility model is any limitation as.
Fig. 1 is the composition structural representation of female joint pipe nipple in this utility model.Fig. 2 is that male joint is short in this utility model
The composition structural representation of section.Schematic diagram when Fig. 3 is female joint pipe nipple jointed rod in this utility model.Fig. 4 is this practicality
Schematic diagram during new middle male joint pipe nipple jointed rod.Fig. 5 is male joint pipe nipple and female joint pipe nipple in this utility model
Connection diagram.Fig. 6 is simplified reference view when public plug is connected initial with female in this utility model.Fig. 7 is this
Simplified reference view after the completion of public plug is connected with female in utility model.Fig. 8 is female in this utility model
Section of structure.Fig. 9 is the close-up schematic view in Fig. 8 at H.Figure 10 is the structural profile of public plug in this utility model
Figure.
As shown in Figures 1 to 4, the utility model proposes electrodrill cable elasticity help sealing structure, be provided with a mother and connect
Head pipe nipple 1 and a male joint pipe nipple 2, are fixed with a female 3 in the female joint pipe nipple 1, pacify in the male joint pipe nipple 2
One public plug 4 is housed, wherein:
The front end face of the female 3 is arranged with a caulking groove 31, is provided with interior conducting strip on the medial wall of the caulking groove 31
32, elastomeric seal portions 33 are installed at its notch, in the female 3, a downside cable 34, the downside cable is additionally provided with
34 one end is electrically connected with the interior conducting strip 32, to realize conducting function;
The rear end face of the public plug 4 is convexly equipped with a connection-peg 41, is embedded with outer leading on the lateral surface of the connection-peg 41
Electric piece 42, is separately provided with a upside cable 44 inside which, one end of the upside cable 44 is electrically connected with the outer conducting strip 42;
When one end of the public plug 4 is corresponding to be connected with one end of the female 3, the front end of the connection-peg 41
Corresponding sealing is inserted in the caulking groove 31, and the outer conducting strip 42 is contacted with the interior conducting strip 32 so that the female plug
3 downside cable 34 and the upside cable 44 of public plug 4, can correspondingly by the outer conducting strip 42 and the interior conducting strip 32
Contact carry out conduction, the rear end of the connection-peg 41 is then mutually closely connected with the elastomeric seal portions 33, the bottom land of the caulking groove 31
The closing chamber 5 formed and the front end of the connection-peg 41 between can fill insulation fat 51, to balance external and internal pressure.
It is preferred that being additionally provided with a L-type passage 45 that can be connected, the L-type with the closing chamber 5 in the public plug 4
One end of passage 45 is located on the side wall of the public plug 4, and its other end is then located on the front end face of the connection-peg 41.Pass through
The L-type passage is set, the internal and external pressure balance after the female 3 can be kept to be connected with public plug 4, moreover it is possible to square after mounting
Just insulation fat is poured into.
Wherein, the side wall of the female joint pipe nipple 1 is provided with the first hole 11 that cross section is square, the first hole
One first square head screw 12 is correspondingly embedded with 11, and first square head screw 12 passes through the first positioner by the female
3 are fixed in the female joint pipe nipple 1.
Refer to Fig. 1, Fig. 3 and Fig. 8, first positioner include one first bolt 13 and one be arranged at described
The convex portion 301 of 3 lateral surface of female, first bolt 13 are arranged in the convex portion 301 and the first square toes spiral shell successively
The screw rod 121 of nail 12, and 121 bolt of screw rod with first square head screw 12, wherein, the nut of first bolt 12
A packing ring 302 is provided between 122 and the convex portion 30.It is preferred that convex portion 301 described in diagram is a ring type structure.
It is square by arranging the first hole 11, and coordinates first square head screw 12 to use, the can be improved
One positioner and the connection reliability of the female 3, it is to avoid disturb docking because of rocking for the female 3, it is ensured that make
Use effect.Quantity as the first hole 11 can be decided according to the actual requirements, and such as in the construction illustrated, connect in the mother
Circumferentially spaced on head pipe nipple 1 it is laid with two first holes 11.
Preferably, the side wall of the male joint pipe nipple 2 is provided with the second hole 21 that cross section is square, the second party
One second square head screw 22 is correspondingly arranged in hole 21, and second square head screw 22 passes through the second positioner by the male plug
4 are fixed in the male joint pipe nipple 2.
Further, second positioner includes one second bolt 23, a plug briquetting 24 and and is arranged at
The projection 401 of 4 lateral surface of the public plug, second bolt 23 are arranged in the plug briquetting 24 and described second successively
Square head screw 22, and be spirally connected fixation, wherein, second square head screw 22 with the screw rod 221 of second square head screw 22
221 end of screw rod, the side of the plug briquetting 24 are respectively formed with a gap P, and the projection 401 is correspondingly embedded at described in two
In gap P, wherein, a packing ring 402 is provided between the nut of second bolt 23 and the plug briquetting 24.Wherein, in figure
Described in projection 401 be preferably a bulge loop.
By the second hole 21 is used with the first square toes screw fit, can improve to the second positioner and
The connection reliability of the public plug 4, wherein in the construction illustrated, preferably circumferentially spaced on the male joint pipe nipple 2
Be laid with two second holes 21.
In addition, in the construction illustrated, the first hole 11, second hole 21 are respectively set to counterbore further also
Form, be so both easy to arrange first square head screw 12, the nut of the second square head screw 22 and be placed in the mother completely
In joint pipe nipple 1, male joint pipe nipple 2, the smooth attractive in appearance of female joint pipe nipple 1,2 outer surface of male joint pipe nipple is preferably kept.
Wherein, as shown in figure 8, being provided with a wiring groove 35, the front end slot of the wiring groove 35 vertically in the female 3
Outer surface of the bottom adjacent to the interior conducting strip 32, its rear end notch are located at the rear end face of the female 3, the downside cable
34 leading portion is stretched in the wiring groove 35, and the copper core 341 of its front end is welded to connect with the interior conducting strip 32, its back segment warp
The rear end notch stretches out the rear end face of the female 3, between the downside cable 34 and the medial wall of the wiring groove 35
In sealing contact.
Further, Figure 10 is referred to, in the public plug 4, is provided with a cable trough 46 vertically, the cable trough 46
Adjacent to the outer conducting strip 42, its front end notch is located on the front end face of the public plug 4, the upside cable at rear end slot bottom
44 back segment is placed in the cable trough, and the copper core 441 of its rear end is welded to connect with the outer conducting strip 42, its leading portion warp
The front end notch stretches out the front end face of the public plug 4, between the upside cable 44 and the medial wall of the cable trough 45
In sealing contact.
In order to improve sealing property, the preferably rear end face in the female 3 is provided with sealing shroud located at the downside cable
34 back-end sealing head 36, the front end face of the public plug 4 are provided with the forward end seal 47 mutually sealed with the upside cable 44.
(as shown in Figure 3, Figure 4).
It is preferred that please also refer to Fig. 8, Fig. 9, expanding from outside to inside at the notch of the caulking groove 31 one first ring is formed with
Portion 311a and one second ring portion 311b, the internal diameter of second ring portion 311b are less than the internal diameter of first ring portion 311a, and
More than the internal diameter of the caulking groove 31, one first ring shoulder between second ring portion 311b and first ring portion 311a, is formed with
311c, itself are formed with one second ring shoulder 311d and the medial wall of the caulking groove 31 between;
Spacing collar 331 that the elastomeric seal portions 33 include being embedded at successively in first ring portion 311a from outside to inside,
Back-up ring 332 and O-ring seal 333, are embedded with disc spring 334 in second ring portion 311b, 334 two ends of the disc spring with described
Second ring shoulder 311d and the O-ring seal 333 contact, and the spacing collar 331 is used for the back-up ring 332, O-ring seal
333 is spacing, prevents both after outer shifting under the elastic force effect of disc spring 334, it is to avoid come off from from first ring portion 311a, institute
The leading portion for stating connection-peg 41 is the cylindrical section matched with the medial wall of the caulking groove 31, and its back segment is expanding to be formed with a shoulder
411, when connection-peg sealing is inserted in the caulking groove 31, the shoulder 411 can correspondingly push the back-up ring 332, sealing
Cushion rubber 333 and disc spring 334, make the O-ring seal 333 compress and mutually closely connected with the connection-peg.
Fig. 5 to Fig. 7 is referred to, the electrodrill cable elasticity that this utility model is provided helps sealing structure, practicing
In, first by the upper end difference jointed rod 5 of the lower end of the female 3 and public plug 4, when specifically connecting, it is by the public access
The lower end of head pipe nipple 2 is socketed in downwards on the outside of the upper end of the female 1, simultaneously, the connection-peg of the public plug 4 41 pairs
Should be inserted in the caulking groove 31, correspond to the outer conducting strip 42 and contact with the interior conducting strip 32, and its shoulder 411 is then
Correspondingly extruding elastomeric seal portions 33 deform, i.e., described shoulder 411 pushes the back-up ring 332, O-ring seal 333 and moves inward, and
Compression disc spring 334, with thrust gradually increase and more than disc spring 334 elastic force when, the disc spring 334 is compressed so that described
O-ring seal 333 is resisted against the first ring shoulder 311c, produces deformation, with female joint pipe nipple 1, the connection of male joint pipe nipple 2,
Thrust is increasing, and 333 deformation of O-ring seal is increasing, finally, the connection-peg of the tightly locking public plug 4 of O-ring seal 333
41 outer walls, so as to complete to seal, completely cut off drilling fluid 7, prevent joint of the drilling fluid through female 3 with public plug 4 from entering, it is to avoid
Operationally there is the generation of short-circuit conditions, thus, this utility model completes grafting, realize downside cable 34 and upside cable 44
Electrical connection.Wherein, in connection, insulation fat 51 is filled in the caulking groove 31 in advance, institute is inserted in the connection-peg 41
When stating in caulking groove 31, the insulation fat 51 correspondingly can be squeezed in L-type passage 45, to keep internal and external pressure balance.
When dismounting drilling rod 6, the public plug 4 as the male joint pipe nipple 2 is away from the female 3, its shoulder 411
Outward movment, thrust are tapered into, and when thrust is less than the elastic force of the disc spring 334, the O-ring seal 333 is gradually described
Disc spring 334 is promoted and is resetted, and deformation fades away, and is restored to original state.
The electrodrill cable elasticity that this utility model is provided helps sealing structure, by arranging female joint pipe nipple and male joint
Pipe nipple, by elastic deformation of the elastomeric seal portions under connection-peg extruding, holds then the outside of connection-peg tightly, makes caulking groove and grafting
Sealing is realized between, is prevented the drilling fluid of outside from entering, and is utilized the connection-peg of the caulking groove of female and public plug inside which
Cooperate so that interior conducting strip is contacted with each other with outer conducting strip, it is achieved that the electrical connection of upside cable and downside cable.
The schematic specific embodiment of this utility model is the foregoing is only, model of the present utility model is not limited to
Enclose.Any those skilled in the art, the equivalent variations that is made on the premise of without departing from design of the present utility model and principle
With modification, the scope of this utility model protection all should be belonged to.