CN208966242U - hollow rod electric heating oil pumping well packing box - Google Patents
hollow rod electric heating oil pumping well packing box Download PDFInfo
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- CN208966242U CN208966242U CN201821462963.3U CN201821462963U CN208966242U CN 208966242 U CN208966242 U CN 208966242U CN 201821462963 U CN201821462963 U CN 201821462963U CN 208966242 U CN208966242 U CN 208966242U
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- hollow stem
- packing box
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- electric heating
- cylinder
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- 238000012856 packing Methods 0.000 title claims abstract description 47
- 238000005485 electric heating Methods 0.000 title claims abstract description 34
- 238000005086 pumping Methods 0.000 title 1
- 239000000084 colloidal system Substances 0.000 claims abstract description 56
- 210000004907 gland Anatomy 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 244000273618 Sphenoclea zeylanica Species 0.000 claims description 90
- 229920000297 Rayon Polymers 0.000 claims description 15
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000003129 oil well Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 241000601170 Clematis lasiantha Species 0.000 description 1
- 244000147058 Derris elliptica Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a hollow rod electric heating rod-pumped well packing box, which comprises a body (1) and at least two pairs of sealing components (2), wherein the body (1) comprises a connecting cylinder (11) for penetrating a hollow rod and at least two packing cylinders (12), and a pair of sealing components (2) are correspondingly arranged at two ends of one packing cylinder (12); each sealing assembly (2) comprises a colloid (21), a connecting seat (22), an elastic buffer device (23), a jackscrew (24) and a gland (25), wherein a semicircular groove (211) is formed in the colloid (21), the diameter of a circle corresponding to the semicircle is the same as the rod diameter of the hollow rod, the length of the circle is the same as the length of the colloid (21), the colloid (21) is connected with the connecting seat (22), and the elastic buffer device (23) is arranged in the connecting seat (22); the jackscrew (24) abuts against the elastic buffer device (23) and passes through the gland (25). The packing box has the advantages that the contact area between the colloid (21) and the hollow rod is large, and the tight sealing of the hollow rod is realized.
Description
Technical field
The utility model relates to oilfield machinery field, in particular to a kind of hollow stem electric heating rod-pumped well packing box.
Background technique
Hollow stem electric-heating technology is that hollow stem heating may be implemented in one kind in pit shaft in lifting process, to play viscosity reduction
With the technology of wax removal effect, it is primarily adapted for use in viscous crude, high solidifying oil and content of wax well.Packing box is a kind of device for sealing hollow stem.
In the use process of hollow stem electric-heating technology, it is also desirable to be sealed using packing box to hollow stem.
Currently, being filled with " O " type packing_seal circle in hollow stem electric heating rod-pumped well packing box, hollow stem be may pass through
" O " type packing_seal circle enters in pit shaft, to seal the annulus space between oil pipe and hollow stem.
In the process of implementing the utility model, the inventor finds that the existing technology has at least the following problems:
Since the hollow shank diameter that electric heating rod-pumped well uses is big, thus existing hollow stem electric heating rod-pumped well disk
The internal diameter of " O " type packing_seal circle used in root box is also just corresponding big, leakproofness small with the contact area of hollow stem
Difference is also easy to produce leakage, needs to frequently replace packing, and well will be stopped by replacing packing every time, when not only affecting the production of oil well
Rate and crude output, and increase the workload and labor intensity of oil recovery work.
Utility model content
In consideration of it, the utility model provides a kind of hollow stem electric heating rod-pumped well packing box, substituted using seal assembly
" O " type packing_seal circle realizes the tight seal to hollow stem.
Specifically, including technical solution below:
A kind of hollow stem electric heating rod-pumped well packing box is provided, the packing box includes: ontology and is arranged described
At least two pairs of seal assemblies on ontology, wherein
The ontology includes connecting cylinder for wearing hollow stem and at least two fillers being arranged on the connecting cylinder
Cylinder, the barrel chamber of each filling tube is connected to the barrel chamber of the connecting cylinder, and the extending direction of the filling tube with it is described
The extending direction of connecting cylinder is vertical；
A pair of seal assembly is correspondingly arranged at the both ends of a filling tube, and each seal assembly includes glue
Body, attachment base, elastic buffer device, jackscrew and gland, the colloid are movably disposed in the barrel chamber of the filling tube, institute
The one end for stating colloid offers semi-circular recesses, diameter of a circle corresponding to the semicircle of the semi-circular recesses with it is described hollow
The bar diameter of bar is identical, and the length of the semi-circular recesses is identical as the length of the colloid, and the other end is connected with the attachment base；
The attachment base offers accommodating chamber, and the elastic buffer device is arranged in the accommodating chamber；One end of the jackscrew against
On the elastic buffer device, the other end movably passes through the gland, and is connected with the gland, the gland and institute
Filling tube is stated to be connected.
In a kind of possible design, each seal assembly further includes pressure cap；
The pressure cap is set on the elastic buffer device, and one end of the jackscrew is resisted against on the pressure cap.
In a kind of possible design, the first threaded hole is offered on the colloid, offers through-hole on the attachment base；
First screw passes through the through-hole, and enters in first threaded hole.
In a kind of possible design, offer the second threaded hole in the gland, the external screw thread of the jackscrew be suitable for
The screw-internal thread fit of second threaded hole.
In a kind of possible design, the colloid is also provided with fixing groove in the one end for offering semi-circular recesses, institute
State the two sides that the semi-circular recesses are arranged in fixing groove.
In a kind of possible design, the both ends of the filling tube offer third threaded hole, open on the attachment base
Equipped with locating slot；
Second screw passes through the third threaded hole, and extend into the locating slot.
In a kind of possible design, the upper end of the connecting cylinder is provided with baffle ring, and the baffle ring is internally provided with group
Close blob of viscose；
The hollow stem passes through the combination blob of viscose.
In a kind of possible design, the number of the filling tube is three, and two adjacent filling tubes prolong
It is orthogonal to stretch direction.
In a kind of possible design, the packing box further include: tuningout component；
The lower end of the connecting cylinder is arranged in the tuningout component, and the hollow stem movably passes through the tuningout group
Part.
In a kind of possible design, the tuningout component includes connected the first cylinder and the second cylinder；
First cylinder is connected with the connecting cylinder, and the axis of the axis of second cylinder and first cylinder is not
On same straight line.
The beneficial effect of technical solution provided by the embodiment of the utility model includes at least:
When the hollow stem electric heating rod-pumped well packing box of the utility model embodiment is configured at this point, hollow
Bar has already passed through connecting cylinder, rotates jackscrew by operator, so that it is located at the jackscrew relative motion at the same filling tube both ends,
Elastic buffer device is pushed using jackscrew, elastic buffer device pushes attachment base, and attachment base is pushed colloid movement, filled out due to each
The barrel chamber of barrel is connected to the barrel chamber of connecting cylinder, allow two colloids being oppositely arranged in the same filling tube constantly
Jackscrew is continued to rotate after colloid is contacted with hollow stem close to hollow stem, so that colloid and hollow stem are in close contact；Due to half
Diameter corresponding to the semicircle of circular groove is identical as the bar diameter of hollow stem, and colloid is allowed to be coated on hollow stem completely
On, then since the length of semi-circular recesses is identical as the length of colloid, so that colloid and hollow stem have sufficiently large contact surface
Product, realizes the tight seal to hollow stem.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of 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 a kind of structural representation of hollow stem electric heating rod-pumped well packing box provided by the embodiment of the utility model
Figure；
Fig. 2 is a kind of seal assembly of hollow stem electric heating rod-pumped well packing box provided by the embodiment of the utility model
Overlook fractionation structural representation；
Fig. 3 is a kind of top view of hollow stem electric heating rod-pumped well packing box provided by the embodiment of the utility model.
Appended drawing reference in figure respectively indicates:
1- ontology, 11- connecting cylinder, 111- cylinder base, 12- filling tube, 121- third threaded hole,
2- seal assembly, 21- colloid, 211- semi-circular recesses, the first threaded hole of 212-, 213- fixing groove, 22- connection
Seat, 221- accommodating chamber, 222- locating slot, 23- elastic buffer device, 24- jackscrew, 25- gland, the second threaded hole of 251-, 26- pressure
Cap,
The first screw of 3-,
The second screw of 4-,
5- baffle ring,
6- combines blob of viscose,
7- tuningout component, the first cylinder of 71-, the second cylinder of 72-.
Specific embodiment
It is involved in the utility model embodiment before being described in further detail to the utility model embodiment
Term position, it is practical new to be used merely to be explicitly described this on the basis of orientation shown in Fig. 1 for such as " upper end ", " lower end "
The hollow stem electric heating rod-pumped well packing box of type embodiment, and do not have the meaning for limiting scope of protection of the utility model.
To keep the technical solution of the utility model and advantage clearer, the utility model is implemented below in conjunction with attached drawing
Mode is described in further detail.
The utility model embodiment provides a kind of hollow stem electric heating rod-pumped well packing box, and structural schematic diagram is as schemed
Shown in 1, which includes: ontology 1 and at least two pairs of seal assemblies 2 for being arranged on ontology 1.
Wherein, ontology 1 includes connecting cylinder 11 for wearing hollow stem (not shown in figure) and is arranged in connecting cylinder 11
On at least two filling tubes 12, the barrel chamber of each filling tube 12 is connected to the barrel chamber of connecting cylinder 11, and filling tube 12 prolongs
It is vertical with the extending direction of connecting cylinder 11 to stretch direction；
A pair of of seal assembly 2 is correspondingly arranged at the both ends of a filling tube 12, and each seal assembly 2 includes colloid 21, connects
Joint chair 22, elastic buffer device 23, jackscrew 24 and gland 25, as shown in Fig. 2, colloid 21 is movably disposed at filling tube 12
In barrel chamber, one end of colloid 21 offers semi-circular recesses 211, as shown in Fig. 2, corresponding to the semicircle of semi-circular recesses 211
Diameter of a circle it is identical as the bar diameter of hollow stem, the length of semi-circular recesses 211 is identical as the length of colloid 21, colloid 21 it is another
One end is connected with attachment base 22；Attachment base 22 offers accommodating chamber 221, and elastic buffer device 23 is arranged in accommodating chamber 221；Top
One end of silk 24 is resisted against on elastic buffer device 23, and the other end movably passes through gland 25, and is connected with gland 25, gland
25 are connected with filling tube 12.
It is understood that the hollow stem electric heating rod-pumped well packing box setting of the utility model embodiment is adopted in well head
It on oil tree, can be connected with the four-way of production tree, realize that installation is fixed.
The working principle of the hollow stem electric heating rod-pumped well packing box of the utility model embodiment are as follows:
When packing box is configured with, at this point, hollow stem has already passed through connecting cylinder 11, is rotated and pushed up by operator
Silk 24 pushes elastic buffer device 23 using jackscrew 24 so that being located at 24 relative motion of jackscrew at same 12 both ends of filling tube,
Elastic buffer device 23 push attachment base 22, attachment base 22 push colloid 21 move, due to each filling tube 12 barrel chamber with
The barrel chamber of connecting cylinder 11 is connected to, and allows two colloids 21 being oppositely arranged in the same filling tube 12 constantly close to hollow
Bar continues to rotate jackscrew 24 after colloid 21 is contacted with hollow stem, so that colloid 21 and hollow stem are in close contact；Due to semicircle
Diameter of a circle corresponding to the semicircle of connected in star 211 is identical as the bar diameter of hollow stem, and colloid 21 is coated on completely
On hollow stem, then since the length of semi-circular recesses 21 is identical as the length of colloid 21, so that colloid 21 and hollow stem have foot
Enough big contacts area, realize the tight seal to hollow stem.
It should be noted that for the tightness degree of colloid 21 and hollow stem 3, as long as ensuring between colloid 21 and hollow stem
There is no liquid spill and leakage, it is not necessary to which too closely, resistance is excessive during preventing hollow stem from moving up and down, and causes unnecessary
Waste of energy.
Therefore, the hollow stem electric heating rod-pumped well packing box of the utility model embodiment utilizes and is arranged on ontology 1
At least two pairs of seal assemblies 2 instead of " O " type packing_seal circle in the prior art, due in seal assembly 2 colloid 21 with
Hollow stem has sufficiently large contact area, and sealing effect is good, it is possible to reduce influence of the temperature to 21 sealing effect of rubber, avoid or
Well head leakage is reduced, live pollution is effectively prevented.The seal assembly 2 uses the time long, has not only saved cost, ensure that
The production time efficiency and crude output of oil well avoid special oil well because of the failures such as well of lying caused by stopping well, and reduce operator
The workload and labor intensity of member.
Explanation is described in detail to the hollow stem electric heating rod-pumped well packing box of the utility model embodiment below:
For ontology 1, ontology 1 constitutes the main structure of packing box, plays the role of being connected and fixed.
Due to be sealed to the hollow stem being threaded through in connecting cylinder 11, for the ease of seal assembly 2 to hollow stem
Sealing, it is vertical with the extending direction of connecting cylinder 11 for placing the extending direction of filling tube 12 of seal assembly 2, so that sealing group
Part 2 can vertically be sticked on hollow stem, as shown in Figure 1.
For the quantity of filling tube 12, the number at least two of filling tube 12, one of filling tube 12 plays valve
Effect, remaining filling tube 12 play sealing function, and particular number is not especially limited in the utility model embodiment.
It is understood that the lowest part of all filling tubes 12 is arranged in the filling tube 12 for playing valve function.In packing
When box normal use, the seal assembly 2 played in the filling tube 12 of valve function may be located remotely from hollow stem；When needing replacing colloid
When 21, after stopping well, the seal assembly 2 in the filling tube 12 for playing valve function is tightly sealed up into hollow stem, cut-out pressure
Source, so that it may the operation of dismounting and change is carried out to the colloid 21 in upper part filling tube 12.
For example, the number of filling tube 12 can be three, and the extending direction of two adjacent filling tubes 12 is mutual
Vertically, as shown in figure 3, so set, adjacent two filling tubes 12 is made to constitute " ten " font, when two filling tubes 12 simultaneously
When sealing, the direction for the sealing force that two filling tubes 12 can be made to provide is complementary, and realization preferably seals hollow stem.
For seal assembly 2, seal assembly 2 plays the sealing function to hollow stem.
In addition to the above-mentioned colloid 21 referred to, attachment base 22, elastic buffer device 23, jackscrew 24 and gland 25, Mei Gemi
Sealing assembly 2 further includes pressure cap 26；
Pressure cap 26 is set on elastic buffer device 23, and one end of jackscrew 24 is resisted against on pressure cap 26, as shown in Figure 1.
By the way that pressure cap 26 is arranged, plays the role of fixed elastic buffer device 23, be resisted against elastic buffer convenient for jackscrew 24
On device 23.
Here elastic buffer device 23 can be spring or Elastic plastic-rubber ring, as long as can play the role of elastic buffer
Structure, in order to when hollow stem occur in connecting cylinder 11 certain angle offset when, elasticity may be implemented in seal assembly 2
Buffering.
In order to realize being connected and fixed for colloid 21 and attachment base 22, the first threaded hole 212, attachment base are offered on colloid 21
Through-hole is offered on 22, the first screw 3 passes through through-hole, and enters in the first threaded hole 212, using the first screw 3, can make
Colloid 21 is obtained securely to connect with attachment base 22.
In order to realize that jackscrew 24 movably passes through gland 25, and it is connected with gland 25, the second spiral shell is offered in gland 25
Pit 251, the external screw thread of jackscrew 24 are suitable for the screw-internal thread fit with the second threaded hole 251, so that jackscrew 24 and gland 25 are realized
Screwed connection rotates jackscrew 24 as needed, the variation of relative position between jackscrew 24 and gland 25 may be implemented.
When in order to ensure sealing state, the colloid 21 being oppositely arranged can be coated on hollow stem completely, and colloid 21 is being opened
One end equipped with semi-circular recesses 211 is also provided with fixing groove 213, as shown in Figure 1, fixing groove 213 is arranged in semi-circular recesses
211 two sides.
By opening up fixing groove 213, when so that the identical colloid 21 of structure being oppositely arranged, realization buckle can be corresponded to and connected
It connects, to ensure that two colloids 21 can be coated on hollow stem completely.
Further, seal assembly 2 rotates after sealing with hollow stem in order to prevent, influences sealing effect, is tying
In structure setting, the both ends of filling tube 12 offer third threaded hole 121, as shown in Figure 1, offering locating slot on attachment base 22
222, as shown in Fig. 2, the second screw 4 passes through third threaded hole 121, and it extend into locating slot 222.
By the positioning of the second screw 4, the relative position for the filling tube 12 that attachment base 22 can be made corresponding is not sent out
It is raw to change, guarantee the tightness of sealing.
It should be noted that the length of the locating slot 222 can be set according to actual needs, which exists
Can constantly it extend in length, for example, extending on colloid 21, so that also being offered on colloid 21 and the locating slot 222
Wide groove body, as shown in Fig. 2, with the positioning for the second screw 4.
Based on above structure, the connecting cylinder 11 of the hollow stem electric heating rod-pumped well packing box of the utility model embodiment
Upper end is additionally provided with baffle ring 5, and baffle ring 5 is internally provided with combination blob of viscose 6, as shown in Figure 1, hollow stem passes through combination blob of viscose 6.
By setting baffle ring 5 and combination blob of viscose 6, baffle ring 5, combination blob of viscose 6 and seal assembly 2 are cooperated, together
Play the sealing function to hollow stem.
It should be noted that the combination blob of viscose 6 is made of two semicircle blob of viscose docking, combination forms annular, with setting
In baffle ring 5.
Before the packing box use, when needing hollow stem passing through connecting cylinder 11, need baffle ring 5 and combination blob of viscose first
6 take out, it is ensured that and the major diameter box cupling on hollow stem can enter in connecting cylinder 11, after hollow stem passes through connecting cylinder 11, then
Upper baffle ring 5 and combination blob of viscose 6 are reinstalled, then screws on corresponding lid (not shown in figure).
In addition, the hollow stem electric heating rod-pumped well packing box of the utility model embodiment further include: tuningout component 7 is adjusted
The lower end that connecting cylinder 11 is arranged in inclined component 7 utilizes tuningout group as shown in Figure 1, hollow stem movably passes through tuningout component 7
Part 7 can solve hollow stem problem not placed in the middle.
Specifically, tuningout component 7 includes the first cylinder 71 and the second cylinder 72 being connected, the first cylinder 71 and connecting cylinder 11
It is connected, the axis of the second cylinder 72 and the axis of the first cylinder 71 are not arranged on the same straight line.
Wherein, the cylinder base 111 that the first cylinder 71 can be arranged with the lower end of connecting cylinder 11 is connected, as shown in Figure 1, by unloading
Loose first cylinder 71 rotates packing box, since the axis of the second cylinder 72 and the axis of the first cylinder 71 be not in same straight line
On, push hollow stem mobile using the second cylinder 72, so that hollow stem is placed in the middle.
In a kind of possible example, the hollow stem electric heating of the utility model embodiment can be operated according to the following steps
Rod-pumped well packing box:
Baffle ring 5 and combination blob of viscose 6 are taken out from the upper end of connecting cylinder 11, it is ensured that the major diameter box cupling of hollow stem can pass through
Connecting cylinder 11 is lowered into pit shaft；
The card hoop Interface of the lower end of connecting cylinder 11 and the general clamp connection of production tree four is secured；
Tuningout component 7 is operated, so that position of the hollow stem in connecting cylinder 11 is placed in the middle；
Colloid 21 is connected by the first screw 3 with attachment base 22, jackscrew 24 is screwed into the second threaded hole 251, elasticity
Buffering device 23 is placed in accommodating chamber 221, assembles seal assembly 2；
The second screw 4 is loosened, locating slot 222 and third threaded hole 121 are placed on the same horizontal plane, pushes attachment base
22 enter in the barrel chamber of filling tube 12；
Jackscrew 24 is rotated with spanner, colloid 21 is pushed to the two sides of hollow stem, after colloid 21 is contacted with hollow stem, after
Continuous rotation jackscrew 24, so that colloid 21 and hollow stem are in close contact, and tightens the second screw 4；
Upper baffle ring 5 and combination blob of viscose 6 are installed, then tighten lid, so that it may open oil well, carry out production operation.
It is understood that multiple fillers also can be used in use, two filling tubes 12 can be only used in packing box
Cylinder 12 enhances sealing effect, is not especially limited in the utility model embodiment.
The above is merely for convenience of it will be understood by those skilled in the art that the technical solution of the utility model, not to
Limit the utility model.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of hollow stem electric heating rod-pumped well packing box, which is characterized in that the packing box includes: ontology (1) and setting
At least two pairs of seal assemblies (2) on the ontology (1), wherein
The ontology (1) includes at least two for wearing the connecting cylinder of hollow stem (11) and being arranged on the connecting cylinder (11)
The barrel chamber of a filling tube (12), each filling tube (12) is connected to the barrel chamber of the connecting cylinder (11), and the filler
The extending direction of cylinder (12) is vertical with the extending direction of the connecting cylinder (11)；
A pair of seal assembly (2) is correspondingly arranged at the both ends of a filling tube (12), each seal assembly (2)
Including colloid (21), attachment base (22), elastic buffer device (23), jackscrew (24) and gland (25), the colloid (21) is removable
It is arranged in the barrel chamber of the filling tube (12) dynamicly, one end of the colloid (21) offers semi-circular recesses (211), described
Diameter of a circle corresponding to the semicircle of semi-circular recesses (211) is identical as the bar diameter of the hollow stem, the semi-circular recesses
(211) length is identical as the length of the colloid (21), and the other end of the colloid (21) is connected with the attachment base (22)；
The attachment base (22) offers accommodating chamber (221), and elastic buffer device (23) setting is in the accommodating chamber (221)；
One end of the jackscrew (24) is resisted against on the elastic buffer device (23), and the other end movably passes through the gland
(25), and with the gland (25) it is connected, the gland (25) is connected with the filling tube (12).
2. hollow stem electric heating rod-pumped well packing box according to claim 1, which is characterized in that each sealing group
Part (2) further includes pressure cap (26)；
The pressure cap (26) is set on the elastic buffer device (23), and one end of the jackscrew (24) is resisted against the pressure cap
(26) on.
3. hollow stem electric heating rod-pumped well packing box according to claim 1, which is characterized in that on the colloid (21)
It offers the first threaded hole (212), offers through-hole on the attachment base (22)；
First screw (3) passes through the through-hole, and enters in first threaded hole (212).
4. hollow stem electric heating rod-pumped well packing box according to claim 1, which is characterized in that in the gland (25)
It offers the second threaded hole (251), the external screw thread of the jackscrew (24) is suitable for matching with the internal screw thread of second threaded hole (251)
It closes.
5. hollow stem electric heating rod-pumped well packing box according to claim 1, which is characterized in that the colloid (21) exists
The one end for offering semi-circular recesses (211) is also provided with fixing groove (213), and the fixing groove (213) is arranged in the semicircle
The two sides of connected in star (211).
6. hollow stem electric heating rod-pumped well packing box according to claim 1, which is characterized in that the filling tube (12)
Both ends offer third threaded hole (121), offer locating slot (222) on the attachment base (22)；
Second screw (4) passes through the third threaded hole (121), and extend into the locating slot (222).
7. hollow stem electric heating rod-pumped well packing box according to claim 1, which is characterized in that the connecting cylinder (11)
Upper end be provided with baffle ring (5), the baffle ring (5) be internally provided with combination blob of viscose (6)；
The hollow stem passes through the combination blob of viscose (6).
8. hollow stem electric heating rod-pumped well packing box according to claim 1, which is characterized in that the filling tube (12)
Number be three, and the extending direction of two adjacent filling tubes (12) is orthogonal.
9. hollow stem electric heating rod-pumped well packing box according to claim 1, which is characterized in that the packing box also wraps
It includes: tuningout component (7)；
The tuningout component (7) is arranged in the lower end of the connecting cylinder (11), and the hollow stem movably passes through the tuningout
Component (7).
10. hollow stem electric heating rod-pumped well packing box according to claim 9, which is characterized in that the tuningout component
It (7) include connected the first cylinder (71) and the second cylinder (72)；
First cylinder (71) is connected with the connecting cylinder (11), the axis and first cylinder of second cylinder (72)
(71) axis is not arranged on the same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821462963.3U CN208966242U (en) | 2018-09-07 | 2018-09-07 | hollow rod electric heating oil pumping well packing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821462963.3U CN208966242U (en) | 2018-09-07 | 2018-09-07 | hollow rod electric heating oil pumping well packing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208966242U true CN208966242U (en) | 2019-06-11 |
Family
ID=66754776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821462963.3U Active CN208966242U (en) | 2018-09-07 | 2018-09-07 | hollow rod electric heating oil pumping well packing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208966242U (en) |
-
2018
- 2018-09-07 CN CN201821462963.3U patent/CN208966242U/en active Active
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