CN220267925U - Sealing and locking device of rod type oil pump - Google Patents

Abstract

The utility model discloses a sealing and locking device of a rod type oil pump, which comprises a rod type oil pump body. This sealed locking device of rod-type oil-well pump drives the inside extrusion displacement of connecting cone to installation cover cone through the screw thread pulling force to taut solid pole to make its seal sleeve's bottom insert in the ring channel of installation cover cone inner wall seting up, simultaneously because the decurrent pulling force effect of exerting pressure of connecting cone, the top edge mouth extrusion elastic seal compression sleeve of inner skleeve makes the inside of its inner skleeve seal intercommunication with the inside seal of oil pumping pipe, and cooperation seal extrusion cone is sealed with the inner wall of installation cover cone, through bulldoze the card pinion rack and the meshing of rotation location joint fluted disc of tooth cover inboard wall, effectually avoided the not hard up to taut solid pole and installation cover cone threaded connection, thereby the butt joint tightness and the stability of the butt joint mouth of pipe and the oil pumping pipe of its rod-well pump body have been improved.

Description

Sealing and locking device of rod type oil pump

Technical Field

The utility model relates to the technical field of sealing and locking structures of oil pumps, in particular to a sealing and locking device of a rod type oil pump.

Background

The rod-type oil pump is pump equipment for pumping oil in oil fields, the rod-type oil pump can be integrally put into an oil pipe along with an oil pumping rod, pumping detection operation can be carried out without lifting the oil pipe, the pump barrel is relatively small in stress and particularly suitable for deep pumping, the rod-type oil pump is widely applied to inclined wells and oil wells with sand and high viscosity, the butt joint pipe of the rod-type oil pump is connected with the pump pipe through a connecting buckle hoop, in order to strengthen the butt joint tightness of the rod-type oil pump, only a sealing sleeve gasket is arranged at the middle part of the rod-type oil pump to strengthen the butt joint sealing, and the pull buckle is fastened through a threaded bolt, and due to the fact that the pump pipe is continuously subjected to oscillation force during pumping and internal pressure, the leakage of crude oil in a gap of the pump pipe cannot be completely blocked only by virtue of the sealing sleeve gasket, the butt joint opening is always in common conditions of oil leakage under the condition of actual field working, and a tightening bolt is easy to loosen during use, so that the butt joint pipe of the rod-type oil pump is not high in tight connectivity, and an operator is required to maintain and check the rod-type oil pump frequently in real time.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the sealing and locking device for the rod-type oil pump, which solves the problems that the connection tightness of the butt joint pipe and the pump pipe of the existing rod-type oil pump is unstable, the conventional sealing sleeve gasket cannot completely block the crude oil oozing out of the butt joint gap, so that the common condition that the oil oozes out from the butt joint is frequently caused under the condition of actual field work, and the tightening bolts are easy to loosen during use, so that the tight connection between the butt joint pipe and the pump pipe of the rod-type oil pump is not high.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a rod-type oil-well pump sealing locking device, includes rod-type oil-well pump body, the butt joint mouth top fixedly connected with installation sleeve cone of rod-type oil-well pump body, the inner wall of installation sleeve cone is fixedly cup jointed with the surface mounting of inner skleeve, the top opening part of installation sleeve cone inserts there is a connection cone, the top fixedly connected with pumping tube of connection cone, the inner wall of connection cone fixedly cup joints spacing internal stay sleeve, the bottom fixedly connected with elasticity seal compression sleeve of spacing internal stay sleeve, elasticity seal compression sleeve's bottom and the top along the mouth extrusion contact of inner skleeve, the top of connection cone runs through four pairs of tensioning dead levers, four pairs of tensioning dead levers are respectively with the middle part of connection cone be the bilateral symmetry distribution, the surface of pairs of tensioning dead levers runs through the inner wall of connection cone, the surface and the inner wall of connection cone is rotated to the surface mounting dead lever, the inner wall rotation cup joint of connection cone, the lower surface of pairs of tensioning dead lever sets up the screw groove, the bottom of pairs of tensioning dead lever inserts the inside of installation sleeve cone, and with the inside of installation sleeve cone, the bottom of installation sleeve cone, the top plate is located the inside the tooth plate is rotated to be connected with the tooth plate, the tooth plate is located the inside the connection cone, the tooth plate is connected with the tooth positioning plate is located the inside the connection cone, the tooth plate is fixed to the tooth plate is connected with the inside the tooth plate, teeth of the latch plate are meshed with teeth of the rotary positioning latch fluted disc.

Preferably, the bottom of the connecting cone is fixedly connected with a sealing sleeve, the inner ring of the sealing sleeve is sleeved on the surface of the inner sleeve, an annular groove matched with the sealing sleeve is formed in the inner wall of the inner sleeve, and the bottom of the sealing sleeve is inserted into the annular groove formed in the inner wall of the inner sleeve.

Preferably, the surface of the connecting cone is fixedly sleeved with a sealing extrusion cone, and the annular outer surface of the sealing extrusion cone is in extrusion contact with the inner wall of the inclined plane of the mounting sleeve cone.

Preferably, the lower surface of the oil pumping pipe is fixedly sleeved with a reinforcing sleeve, and the bottom edge of the reinforcing sleeve is fixedly connected with the top of the connecting cone.

Preferably, the surface fixing sleeve of the pair of tensioning fixing rods is sleeved with a cone pressing fixing cylinder, and the bottom edge opening of the cone pressing fixing cylinder is fixedly connected with the top of the rotary positioning clamping fluted disc.

Preferably, the top fixedly connected with chassis board to taut dead lever, the top fixedly connected with carousel cap of chassis board, the one end fixedly connected with top carousel that the locating screw is located the connection awl section of thick bamboo outside.

The utility model provides a sealing and locking device of a rod type oil pump. The beneficial effects are as follows:

(1) The rod type oil pump sealing locking device is used by matching the installation sleeve cone, the inner sleeve, the connecting cone, the limiting inner supporting sleeve, the elastic sealing compression sleeve, the sealing extrusion cone, the tensioning fixed rod, the rotating positioning clamping fluted disc, the cone pressing fixed cylinder, the positioning screw rod, the pushing tooth sleeve plate and the clamping tooth plate, so that the four opposite-pulling fixed rods are rotated, the connecting cone is driven to extrude and displace towards the inside of the installation sleeve cone by utilizing the thread tension through the threaded connection of the tensioning fixed rod and the installation sleeve cone, the connecting cone is inserted into the inside of the installation sleeve cone, the bottom of the sealing sleeve is inserted into the annular groove formed in the inner wall of the installation sleeve cone, the leakage of crude oil is effectively blocked through the sealing sleeve, and meanwhile, due to the downward pressing tension of the connecting cone, the top edge mouth of inner skleeve extrudes the elastic seal compression sleeve, make the inside of its inner skleeve and the inside sealed intercommunication of oil pumping pipe, and the cooperation connects the sealed extrusion cone of cone fixed surface joint and installs the inner wall of a set cone and extrude sealedly, thereby make its inner skleeve and the inside of oil pumping pipe more inseparable butt joint, can effectually prevent the seepage of crude oil, and through the screw thread propulsion principle of locating screw, drive the card pinion rack that bulldozes the pinion rack inner wall and rotate the meshing of location joint fluted disc, then fix its rotation direction to taut solid pole, effectually avoided the not hard up to taut solid pole and installation set cone threaded connection, thereby the butt joint tightness and the stability of the butt joint mouth of pipe of its rod-type oil-well pump body and oil pumping pipe have been improved.

Drawings

FIG. 1 is a schematic cross-sectional elevation view of a structure of the present utility model;

FIG. 2 is an enlarged schematic view of the structure of the present utility model at A of FIG. 1;

FIG. 3 is an enlarged schematic view of the structure of the present utility model at B in FIG. 2;

FIG. 4 is an enlarged schematic view of FIG. 3 at C of the structure of the present utility model;

FIG. 5 is a top view of a cross-section of the engagement of the rotatable positioning latch plate with the latch plate of the present utility model.

In the figure: 1. a rod oil pump body; 2. installing a sleeve cone; 3. an inner sleeve; 4. connecting the cone cylinder; 5. an oil pumping pipe; 6. limiting the inner supporting sleeve; 7. an elastically sealing compression sleeve; 8. sealing the sleeve; 9. reinforcing the sleeve; 10. sealing and extruding the cone; 11. tightening the fixing rod; 12. rotating and positioning the clamping fluted disc; 13. taper pressing and fixing the cylinder; 14. a chassis plate; 15. a turntable cap; 16. positioning a screw; 17. pushing the tooth sleeve plate; 18. a tooth clamping plate; 19. and (5) a top turntable.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-5, the present utility model provides a technical solution: the sealing and locking device for the rod-type oil pump comprises a rod-type oil pump body 1, wherein an installation sleeve cone 2 is fixedly connected to the top of a butt joint of the rod-type oil pump body 1, the inner wall of the installation sleeve cone 2 is fixedly sleeved with the surface of an inner sleeve 3, a connecting cone 4 is inserted into the top opening of the installation sleeve cone 2, the top of the connecting cone 4 is fixedly connected with an oil pumping pipe 5, a reinforcing sleeve 9 is fixedly sleeved on the lower surface of the oil pumping pipe 5, the bottom edge of the reinforcing sleeve 9 is fixedly connected with the top of the connecting cone 4, the connection stability of the oil pumping pipe 5 and the connecting cone 4 is enhanced through the arrangement of the reinforcing sleeve 9, a limiting inner supporting sleeve 6 is fixedly sleeved on the inner wall of the connecting cone 4, an elastic sealing compression sleeve 7 is fixedly connected to the bottom of the limiting inner supporting sleeve 6, the bottom of the elastic sealing compression sleeve 7 is in extrusion contact with the top edge of the inner sleeve 3, the bottom of the connecting cone 4 is fixedly connected with a sealing sleeve 8, the inner ring of the sealing sleeve 8 is sleeved on the surface of the inner sleeve 3, the inner wall of the inner sleeve 3 is provided with an annular groove matched with the sealing sleeve 8, the bottom of the sealing sleeve 8 is inserted into the annular groove provided on the inner wall of the inner sleeve 3, the sealing sleeve 8 is arranged, so that the connection tightness of the inner sleeve 3 and the oil pumping pipe 5 is enhanced, the surface of the connecting cone 4 is fixedly sleeved with a sealing extrusion cone 10, the annular outer surface of the sealing extrusion cone 10 is in extrusion contact with the inclined surface inner wall of the mounting cone 2, the sealing extrusion cone 10 is arranged, so that the butt joint tightness of the mounting cone 2 can be better enhanced through the extrusion acting force of the connecting cone 4 and the inclined surface of the mounting cone 2, four tensioning solid rods 11 penetrate through the top of the connecting cone 4, the four pairs of tightening fixed rods 11 are respectively and symmetrically distributed in the front-back and left-right directions at the middle part of the connecting cone 4, the surfaces of the tightening fixed rods 11 penetrate through the inner wall of the connecting cone 4, the surfaces of the tightening fixed rods 11 are rotationally sleeved with the inner wall of the connecting cone 4, the lower surfaces of the tightening fixed rods 11 are provided with threaded grooves, the bottoms of the tightening fixed rods 11 are inserted into the interior of the mounting sleeve cone 2 and are in threaded connection with the inner wall of the mounting sleeve cone 2, the surfaces of the tightening fixed rods 11 are fixedly sleeved with a rotary positioning clamping fluted disc 12, the rotary positioning clamping fluted disc 12 is positioned in the connecting cone 4, the bottom edge of the conical pressing fixed cylinder 13 is fixedly connected with the top of the rotary positioning clamping fluted disc 12 through the arrangement of the conical pressing fixed cylinder 13, thereby strengthening the fixedly sleeved connection strength of the tightening fixed rods 11 and the rotary positioning clamping fluted disc 12, the front and back and both sides of the connection cone 4 are inserted with a positioning screw 16, the surface of the positioning screw 16 is in threaded connection with the inner wall of the connection cone 4, one end of the positioning screw 16 positioned in the connection cone 4 is rotationally connected with a pushing tooth sleeve plate 17, the side surface of the rotation positioning clamping tooth disc 12 is inserted into a groove of the pushing tooth sleeve plate 17, the inner wall of the groove of the pushing tooth sleeve plate 17 is fixedly connected with a tooth plate 18, teeth of the tooth plate 18 are meshed with teeth of the rotation positioning clamping tooth disc 12, through the arrangement of the rotation positioning clamping tooth disc 12 and the tooth plate 18, the effect of fixing the rotation of the tensioning fixed rod 11 is achieved by utilizing the meshing of the tooth plate 18 and the teeth of the rotation positioning clamping tooth disc 12, the top of the tensioning fixed rod 11 is fixedly connected with a base plate 14, the top of the base plate 14 is fixedly connected with a rotary disc cap 15 through the arrangement of the rotary disc cap 15 and the base plate 14, thereby play the effect of being convenient for rotate to taut dead lever 11, the positioning screw 16 is located the outside one end fixedly connected with top carousel 19 of connection awl section of thick bamboo 4, through the setting of top carousel 19 to the effect of being convenient for rotate positioning screw 16 has been played.

When in use, the connecting cone 4 fixedly connected with the bottom of the oil pumping pipe 5 is inserted into the mounting sleeve cone 2, then the four turntable caps 15 are correspondingly rotated to drive the opposite tightening rod 11 to rotate, even if the opposite tightening rod 11 is in rotary threaded connection with the inner wall of the mounting sleeve cone 2, the connecting cone 4 is continuously pulled to be close to the inside of the mounting sleeve cone 2 by utilizing the threaded tension to drive the connecting cone 4 to extrude and displace towards the inside of the mounting sleeve cone 2, the bottom of the sealing sleeve 8 is inserted into the annular groove formed in the inner wall of the mounting sleeve cone 2, namely, the leakage of crude oil is effectively blocked through the sealing sleeve 8, meanwhile, the top edge of the inner sleeve 3 extrudes the elastic sealing compression sleeve 7 due to the downward pressure and tension action of the connecting cone 4, so that the inside of the inner sleeve 3 is in sealed communication with the inside of the oil pumping pipe 5, and the sealing extrusion cone 10 fixedly sleeved on the surface of the connecting cone 4 is matched with the inner wall of the mounting sleeve cone 2 to be extruded and sealed, so that the inner sleeve 3 of the sealing extrusion cone is in tighter butt joint with the inside of the oil pumping pipe 5, crude oil leakage can be effectively prevented, then the top rotary table 19 arranged on the four sides of the connecting cone 4 is correspondingly rotated, the latch plate 18 pushing the inner wall of the toothed sleeve plate 17 is driven to be meshed with the rotating positioning clamping fluted disc 12 through the thread pushing principle of the positioning screw 16, the rotating direction of the tensioning fixed rod 11 is fixed, loosening of threaded connection of the tensioning fixed rod 11 and the mounting sleeve cone 2 is effectively avoided, and butt joint tightness and stability of a butt joint pipe orifice of the rod type oil pump body 1 and the oil pumping pipe 5 are improved.

In summary, the rod type oil pump sealing locking device is realized through the arrangement of the installation sleeve cone 2, the inner sleeve 3, the connection cone 4, the limiting inner supporting sleeve 6, the elastic sealing compression sleeve 7, the sealing extrusion cone 10, the opposite tightening fixed rod 11, the rotary positioning clamping fluted disc 12, the cone tightening fixed rod 13, the positioning screw 16, the pushing tooth sleeve plate 17 and the clamping tooth plate 18, thereby realizing the matching use of the four opposite tightening fixed rods 11 through the rotation, the threaded connection of the opposite tightening fixed rod 11 and the installation sleeve cone 2, the connection cone 4 is driven to extrude and displace towards the inside of the installation sleeve cone 2 by utilizing the thread tension, the connection cone 4 is inserted into the inside of the installation sleeve cone 2, the bottom of the sealing sleeve 8 is inserted into the annular groove formed in the inner wall of the installation sleeve cone 2, the leakage of crude oil is effectively blocked by the sealing sleeve 8, meanwhile, due to the downward pressure and pull action of the connecting cone 4, the top edge opening of the inner sleeve 3 extrudes the elastic sealing compression sleeve 7, so that the inside of the inner sleeve 3 is communicated with the inside of the oil pumping pipe 5 in a sealing way, and the sealing extrusion cone 10 fixedly sleeved on the surface of the connecting cone 4 is matched with the inner wall of the mounting sleeve cone 2 to carry out extrusion sealing, so that the inner sleeve 3 is in tighter butt joint with the inside of the oil pumping pipe 5, the leakage of crude oil can be effectively prevented, the latch plate 18 pushing the inner wall of the toothed sleeve plate 17 is driven to be meshed with the rotary positioning clamping fluted disc 12 by the screw thread pushing principle of the positioning screw 16, the rotary direction of the tensioning fixed rod 11 is then fixed, the loosening of the threaded connection of the tensioning fixed rod 11 and the mounting sleeve cone 2 is effectively avoided, thereby improving the butt joint tightness and stability of the butt joint pipe orifice of the rod type oil pump body 1 and the oil pumping pipe 5.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a sealed locking device of rod-type oil-well pump, includes rod-type oil-well pump body (1), its characterized in that: the utility model discloses a rod-type oil-well pump body (1) is characterized in that an installation sleeve cone (2) is fixedly connected to the top of an abutting joint of the rod-type oil-well pump body (1), the inner wall of the installation sleeve cone (2) is fixedly sleeved with the surface fixing of an inner sleeve (3), a connection cone (4) is inserted into the top opening of the installation sleeve cone (2), a pumping pipe (5) is fixedly connected to the top of the connection cone (4), a limit inner supporting sleeve (6) is fixedly sleeved with the inner wall of the connection cone (4), an elastic sealing compression sleeve (7) is fixedly connected to the bottom of the limit inner supporting sleeve (6), the bottom of the elastic sealing compression sleeve (7) is in extrusion contact with the top edge of the inner sleeve (3), four tensioning fixing rods (11) penetrate through the top of the connection cone (4) and are symmetrically distributed around the middle of the connection cone (4), the surfaces of the tensioning fixing rods (11) penetrate through the inner wall of the connection cone (4), the surfaces of the tensioning fixing rods (11) are fixedly connected with the inner wall of the connection cone (4), a threaded disc (11) is fixedly connected with the inner wall of the connection cone (2), the threaded sleeve (11) is rotatably connected with the threaded sleeve (12), the rotary positioning clamping fluted disc (12) is located inside the connecting conical drum (4), positioning screws (16) are inserted into the front side and the rear side of the connecting conical drum (4), the surfaces of the positioning screws (16) are in threaded connection with the inner wall of the connecting conical drum (4), one end of the positioning screws (16) located inside the connecting conical drum (4) is rotationally connected with a pushing tooth sleeve plate (17), the side face of the rotary positioning clamping fluted disc (12) is inserted into a groove of the pushing tooth sleeve plate (17), clamping tooth plates (18) are fixedly connected to the inner wall of the groove of the pushing tooth sleeve plate (17), and teeth of the clamping tooth plates (18) are meshed with teeth of the rotary positioning clamping fluted disc (12).

2. The sealing and locking device of a rod oil pump according to claim 1, wherein: the bottom of the connecting cone (4) is fixedly connected with a sealing sleeve (8), the inner ring of the sealing sleeve (8) is sleeved on the surface of the inner sleeve (3), an annular groove matched with the sealing sleeve (8) is formed in the inner wall of the inner sleeve (3), and the bottom of the sealing sleeve (8) is inserted into the annular groove formed in the inner wall of the inner sleeve (3).

3. The sealing and locking device of a rod oil pump according to claim 1, wherein: the surface of the connecting cone (4) is fixedly sleeved with a sealing extrusion cone (10), and the annular outer surface of the sealing extrusion cone (10) is in extrusion contact with the inclined inner wall of the mounting sleeve cone (2).

4. The sealing and locking device of a rod oil pump according to claim 1, wherein: the lower surface of the oil pumping pipe (5) is fixedly sleeved with a reinforcing sleeve (9), and the bottom edge of the reinforcing sleeve (9) is fixedly connected with the top of the connecting cone (4).

5. The sealing and locking device of a rod oil pump according to claim 1, wherein: the surface fixing sleeve of the tensioning fixing rod (11) is fixedly sleeved with a cone pressing fixing cylinder (13), and the bottom edge of the cone pressing fixing cylinder (13) is fixedly connected with the top of the rotary positioning clamping fluted disc (12).

6. The sealing and locking device of a rod oil pump according to claim 1, wherein: the top of tensioning dead lever (11) fixedly connected with chassis board (14), the top fixedly connected with carousel cap (15) of chassis board (14), the one end fixedly connected with top carousel (19) that positioning screw (16) are located the outside of connection awl section of thick bamboo (4).