CN218062572U - Thin-sheet type hydraulic self-sealing leakage-free pump - Google Patents
Thin-sheet type hydraulic self-sealing leakage-free pump Download PDFInfo
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- CN218062572U CN218062572U CN202220827475.8U CN202220827475U CN218062572U CN 218062572 U CN218062572 U CN 218062572U CN 202220827475 U CN202220827475 U CN 202220827475U CN 218062572 U CN218062572 U CN 218062572U
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Abstract
The utility model provides a thin-sheet hydraulic pressure is proclaimed oneself and is not lost pump, relate to oil development technical field, including the sucker rod, center tube and rigidity opening elastic ring, the external screw thread has been seted up on the tail end surface of sucker rod, the center tube is hollow structure, the internal thread has been seted up on the upper end inside wall of center tube, the bottom screw thread of sucker rod is inserted and is established on the center tube, through internal thread and external screw thread threaded connection between sucker rod and the center tube, through rigidity opening elastic ring, and cut apart into the multisection with the pump line skin, the elastic deformation volume of radial and two directions of axial has been increased, thereby the maximum load that the pump line shell can bear has been increased, thereby improved this hydraulic pressure proclaim oneself and not lost pump's life, the friction damage between pump barrel and plunger has been reduced, the problem of the oil pumping efficiency reduction that the oil leak between pump barrel and plunger outer wall leads to is solved, improve the life of beam-pumping unit pump barrel and plunger, play important meaning to improving oil pumping efficiency and reduce the maintenance cost.
Description
Technical Field
The utility model relates to an oil development technical field especially relates to a thin slice formula hydraulic pressure is proclaimed oneself and is not lost pump.
Background
Because the present plunger oil well pump technology of oil fields at home and abroad is applied to the underground pumping plunger tube pump, when the pumping unit is lifted upwards, the lifting pressure difference exists between the plunger and the pump, the large gap of the pump exists and the leakage phenomenon exists; and the clearance between in-process plunger that draws downwards and the pump leads to frictional force to strengthen because of the undersize, and these two kinds of phenomena all exist and reduce the oil pumping efficiency problem, consequently the utility model provides a thin slice formula hydraulic pressure is proclaimed oneself and is not lost the pump.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that exists among the prior art, provide one kind and carry out special design's thin slice formula hydraulic pressure to the plunger outer ring and proclaim oneself the leak-proof pump, can improve corresponding problem, realize the plunger pump and proclaim oneself, solve beam-pumping unit plunger pump and pump barrel rigid fit leakage quantity big, the big scheduling problem of frictional resistance.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a no-leakage pump is proclaimed oneself to thin slice formula hydraulic pressure, includes sucker rod, center tube and rigidity opening elastic ring, the external screw thread has been seted up on the tail end surface of sucker rod, the center tube is hollow structure, the internal thread has been seted up on the upper end inside wall of center tube, the bottom screw thread of sucker rod is inserted and is established on the center tube, through internal thread and external screw thread threaded connection between sucker rod and the center tube, rigidity opening elastic ring from top to bottom overlaps in proper order and establishes on the center tube, be provided with the rubber sleeve between rigidity opening elastic ring and the center tube outer wall, the surface at the center tube is fixed to the rubber sleeve, the upper and lower both sides of rigidity opening elastic ring are provided with no internal thread pressure cap and internal thread pressure cap respectively, be provided with the spare cap on the center tube of internal thread pressure cap below, center tube bottom and fixed valve threaded connection below the spare cap.
By adopting the technical scheme: through the rigid opening elastic ring, the outer layer of the pump pipe is divided into a plurality of sections, and the elastic deformation in the radial direction and the axial direction is increased, so that the maximum load which can be borne by the outer shell of the pump pipe is increased, the service life of the hydraulic self-sealing leakage-free pump is prolonged, and the hydraulic self-sealing leakage-free pump plays an important role in reducing the maintenance cost.
In a preferred embodiment, a shoulder is mounted on the sucker rod above the center tube.
By adopting the technical scheme: the design of the shoulder can facilitate the connection of the sucker rod and the upper plunger.
As a preferred embodiment, the rigid split elastic rings are provided with six pairs of slots, the tail end of each slot is semicircular, and each slot is opposite to the adjacent slot in direction.
By adopting the technical scheme: the tail end of the slot is semicircular, so that the slot can be prevented from being cracked along the tail end line, the slot can be widened when the slot receives outward radial pressure, the slot is widened to enable the rigid open elastic ring to expand, and the rigid open elastic ring is tightly attached to the outer pump pipe after expansion to achieve the effect of no leakage.
In a preferred embodiment, the central tube is provided with a milled groove and a cut seam, and the middle part of the central tube is provided with a thick rubber sleeve.
By adopting the technical scheme: the pressure difference generated by crude oil can be transmitted to the rubber sleeve from the inside of the central tube through the slot in the central tube, the rubber sleeve expands after the pressure is completely borne by the rubber sleeve, the expanded force is finally transmitted to the rigid opening elastic ring, and the internal pressure of the central tube can be the same as the external pressure through the milling groove.
As a preferred embodiment, be threaded connection between internal thread pressure cap and the spare cap and the center tube, no internal thread presses the cap cover to establish on the center tube, the draw-in groove that no internal thread pressed the cap inner wall to set up and the top joint of rubber sleeve, the tail end joint of rubber sleeve is in the draw-in groove that the cap was pressed to the internal thread.
The technical effect of adopting the further scheme is as follows: the design of the internal thread pressing cap and the internal thread-free pressing cap can fix the rigid opening elastic ring, the rigid opening elastic ring and the internal thread-free pressing cap are clamped on the rubber sleeve, the rubber sleeve is controlled to expand by pressure difference in the up-down stroke of the sucker rod, a plurality of sections of rigid split rings are pushed to press the inner wall of the pump barrel to realize self-sealing, meanwhile, when the plunger moves down, the internal pressure and the external pressure tend to be equal, the rubber sleeve and the slotted metal ring recover to the original shape, a gap is generated between the plunger and the pump barrel, the resistance tends to zero when the plunger moves down, self-lubrication between friction pairs is realized, and in the process, the internal thread pressing cap and the internal thread-free pressing cap play a role in limiting.
Compared with the prior art, the utility model has the advantages and positive effects that,
the utility model discloses in, through rigidity opening elastic ring, and cut apart into the multisection with the pump line skin, the elastic deformation volume of two orientations of radial and axial has been increased, thereby the maximum load that the pump line shell can bear has been increased, thereby the life of this hydraulic pressure is proclaimed oneself the non-leakage pump has been improved, frictional damage between pump barrel and plunger has been reduced, solve the problem that the oil pumping efficiency that the oil leak between pump barrel and plunger outer wall leads to reduces, improve the life of pumping unit pump barrel and plunger, play important meaning to improving pumping efficiency and reducing the maintenance cost.
Drawings
Fig. 1 is a schematic view of a main structure of a slice type hydraulic self-sealing non-leakage pump provided by the present invention;
FIG. 2 is a schematic diagram of a structure of a sucker rod of a slice type hydraulic self-sealing non-leakage pump provided by the present invention;
fig. 3 is a schematic diagram of a central tube structure of a slice type hydraulic self-sealing leak-free pump provided by the present invention;
FIG. 4 is a schematic diagram of a structure of a non-internal thread pressure cap of a slice type hydraulic self-sealing non-leakage pump provided by the present invention;
FIG. 5 is a schematic diagram of a rigid open elastic ring structure of a sheet-type hydraulic self-sealing no-leakage pump according to the present invention;
FIG. 6 is a schematic structural diagram of a spare cap of a slice type hydraulic self-sealing loss-free pump provided by the present invention;
fig. 7 is a cross-sectional view of a central tube, a rubber sleeve and an internal thread pressing cap in a sheet type hydraulic self-sealing non-leakage pump provided by the utility model.
Illustration of the drawings:
1. a shoulder; 2. a sucker rod; 3. a central tube; 4. the pressing cap without internal thread; 5. a rigid split elastic ring; 6. pressing a cap by the internal thread; 7. preparing a cap; 8. fixing a valve; 9. a rubber sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
As shown in fig. 1-7, the utility model provides a technical solution: a slice type hydraulic self-sealing non-leakage pump comprises a sucker rod 2, a central tube 3 and a rigid opening elastic ring 5, wherein the tail end surface of the sucker rod 2 is provided with an external thread, the central tube 3 is of a hollow structure, an internal thread is arranged on the inner side wall of the upper end of the central tube 3, the bottom end of the sucker rod 2 is inserted on the central tube 3, the sucker rod 2 is connected with the central tube 3 through the internal thread and the external thread, the rigid opening elastic ring 5 is sequentially sleeved on the central tube 3 from top to bottom, a rubber sleeve 9 is arranged between the rigid opening elastic ring 5 and the outer wall of the central tube 3, the rubber sleeve 9 is fixed on the surface of the central tube 3, the upper side and the lower side of the rigid opening elastic ring 5 are respectively provided with a non-internal thread press cap 4 and a non-internal thread press cap 6, a spare cap 7 is arranged on the central tube 3 below the internal thread press cap 6, the bottom end of the central tube 3 below the spare cap 7 is connected with a fixed valve 8 in a threaded manner, the outer layer of the pump tube is divided into a plurality of sections through the rigid opening elastic ring 5, the pump tube outer layer is increased in elastic deformation amount in the radial direction and the axial direction, the pump tube outer layer is increased, the maximum load which can be borne by the pump tube shell, the hydraulic self-sealing non-leakage pump is prolonged, and the maintenance cost is reduced.
Wherein, install shoulder 1 on the sucker rod 2 of center tube 3 top, the design of shoulder 1 can make things convenient for sucker rod 2 and the connection of last plunger.
The rigid open elastic ring 5 is provided with slots, six pairs of slots are formed in each rigid open elastic ring 5, the tail end of each slot is semicircular, each slot is opposite to the direction of the adjacent slot, the tail end of each slot is semicircular, the slots can be prevented from being cracked along the tail end line, the slots can be widened when radial outward pressure is received, the slots are widened to allow the rigid open elastic rings 5 to expand, and the rigid open elastic rings 5 are tightly attached to the outside pump pipes after expansion to achieve the effect of no leakage.
Wherein, be provided with milling flutes and slot on the center tube 3, the middle part of center tube 3 is provided with thick gum cover, and the slot on the center tube 3 lets crude oil outward flow, and the pressure of crude oil outward flow is also expanded by rubber sleeve 9 after all undertake by rubber sleeve 9, and the final conduct of expanded power is rigid opening elastic ring 5 afterwards, and the milling flutes can make 3 internal pressure of center tube the same with the external world.
The internal thread pressing cap 6 and the spare cap 7 are in threaded connection with the central tube 3, the internal thread-free pressing cap 4 is sleeved on the central tube 3, a clamping groove formed in the inner wall of the internal thread-free pressing cap 4 is clamped with the top end of the rubber sleeve 9, the tail end of the rubber sleeve 9 is clamped in the clamping groove of the internal thread pressing cap 6, the internal thread pressing cap 6 and the internal thread-free pressing cap 4 are designed to fix the rigid open elastic ring 5, the internal thread pressing cap and the rubber sleeve 9 are clamped on the rubber sleeve 9, the rubber sleeve 9 is controlled to expand by pressure difference in the up-down stroke of the sucker rod 2, a plurality of sections of rigid split rings are pushed to be pressed on the inner wall of the pump barrel to achieve self-sealing, meanwhile, when a plunger is in the down stroke, the internal pressure and the external pressure tend to be equal, the rubber sleeve 9 and the slotted metal ring return to the original state, a gap is generated between the plunger and the pump barrel, resistance tends to zero in the down stroke, self-lubrication among friction pairs is achieved, and in the process, the internal thread pressing cap 6 and the internal thread-free pressing cap 4 achieve the limiting effect.
The working principle is as follows:
as shown in fig. 1-7, firstly, the sucker rod 2 is inserted into the top of the central tube 3 by a thread, then the non-internal thread pressure cap 4 is sleeved on the rubber sleeve 9 and is clamped with the top end of the rubber sleeve 9, then the rigid open elastic ring 5 is sequentially sleeved on the rubber sleeve 9 of the central tube 3, after the sleeving is completed, the internal thread pressure cap 6 is sleeved on the tail end of the central tube 3 by a thread and is correspondingly clamped at the tail end of the rubber sleeve 9, so that the rigid open elastic ring 5 is fixed between the rigid open elastic ring and the central tube, finally the standby cap 7 is connected to the central tube 3 by a thread and is finally fixed, after the fixing is completed, the central tube 3 together with the sucker rod 2 is connected with the fixed valve 8 by a thread and is connected with the upper plunger by the shoulder 1, the installation of the device can be completed, the rubber sleeve 9 is controlled to expand by the pressure difference in the up-down stroke of the plunger, the multi-section rigid open elastic ring 5 is pushed to press on the inner wall of the pump cylinder to realize self-sealing, and the inner and outer pressure of the plunger tends to be equal, the rubber sleeve 9 and the slit metal ring restore to generate a gap between the plunger and the plunger to realize self-lubrication between the friction pair friction.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may apply the equivalent embodiments modified or modified by the above technical contents disclosed as equivalent variations to other fields, but any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention will still fall within the protection scope of the technical solution of the present invention.
Claims (5)
1. The utility model provides a thin slice formula hydraulic pressure is proclaimed oneself and is not lost pump, includes sucker rod (2), center tube (3) and rigidity opening elastic ring (5), its characterized in that, the external screw thread has been seted up to the bottom surface of sucker rod (2), center tube (3) are hollow structure, the internal thread has been seted up on the upper end inside wall of center tube (3), the bottom screw thread of sucker rod (2) is inserted and is established on center tube (3), and is a plurality of rigidity opening elastic ring (5) from top to bottom overlaps in proper order and establishes on center tube (3), be provided with rubber sleeve (9) between rigidity opening elastic ring (5) and center tube (3) outer wall, the surface at center tube (3) is fixed in rubber sleeve (9), the upper and lower both sides of rigidity opening elastic ring (5) are provided with no internal thread pressure cap (4) and internal thread pressure cap (6) respectively, be provided with spare cap (7) on center tube (3) of internal thread pressure cap (6) below, center tube (3) bottom and fixed valve (8) threaded connection of spare cap (7) below.
2. The slice type hydraulic self-sealing non-loss pump according to claim 1, wherein: and a shoulder (1) is arranged on the sucker rod (2) above the central pipe (3).
3. The slice-type hydraulic self-sealing loss-free pump according to claim 1, wherein: each rigid opening elastic ring (5) is provided with a slot, six pairs of slots are formed in each rigid opening elastic ring (5), the tail end of each pair of slots is semicircular, and the direction of each slot is opposite to that of the adjacent slot.
4. The slice-type hydraulic self-sealing loss-free pump according to claim 1, wherein: the central pipe (3) is provided with a milling groove and a slot, and the middle part of the central pipe (3) is provided with a thick rubber sleeve.
5. The slice type hydraulic self-sealing non-loss pump according to claim 1, wherein: be threaded connection between internal thread pressure cap (6) and reserve cap (7) and center tube (3), no internal thread presses cap (4) cover to establish on center tube (3), no internal thread presses the top joint of draw-in groove and rubber sleeve (9) that cap (4) inner wall set up, the bottom joint of rubber sleeve (9) is in the draw-in groove that cap (6) was pressed to the internal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220827475.8U CN218062572U (en) | 2022-04-02 | 2022-04-02 | Thin-sheet type hydraulic self-sealing leakage-free pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220827475.8U CN218062572U (en) | 2022-04-02 | 2022-04-02 | Thin-sheet type hydraulic self-sealing leakage-free pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218062572U true CN218062572U (en) | 2022-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220827475.8U Active CN218062572U (en) | 2022-04-02 | 2022-04-02 | Thin-sheet type hydraulic self-sealing leakage-free pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218062572U (en) |
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2022
- 2022-04-02 CN CN202220827475.8U patent/CN218062572U/en active Active
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