CN209040791U - A kind of polished rod sealer - Google Patents

Abstract

The utility model discloses a kind of polished rod sealers, belong to technical field of oil extraction equipment, including shoe cream room, upper joint sleeve, pressure pad, extension bar, rubber packing, O-ring seal, trapezoidal stripper rubber, tetrafluoro washer, compress rubber, inverted trapezoidal stripper rubber, lower joint sleeve, hold down assembly shell, handle, nut, lead screw, compact heap, the top of the upper joint sleeve is provided with shoe cream room, outer wall two sides are symmetrically arranged with extension bar, upper joint sleeve is connected through a screw thread with the shell that holds down assembly, the shell that holds down assembly is connected through a screw thread with lower joint sleeve, it is connected between handle and compact heap by lead screw, lead screw and the nut composition worm drive being fixed on shell, have structure simple compared with prior art, it is easy to adjust, work efficiency is high, prevent oil spout, it is anti-pollution, maintenance time and the expense of equipment can be saved.

Description

A kind of polished rod sealer

Technical field

The utility model belongs to technical field of oil extraction equipment, specifically a kind of polished rod sealer.

Background technique

Polished rod sealer is widely used in oil recovery production, and effect is the polished rod for sealing pumping unit, and polished rod is made to pump Oil will not be taken to outside polished rod in the process, when pumping unit works, polished rod moves up and down, and crude oil is extracted into ground, along oil pipeline It flows away, the circle rubber packing when polished rod moves upwards of the oil on polished rod scrapes, and flows back in oil pipeline, polished rod and rubber disk The long-term friction of root will cause the damage of rubber packing, loses sealing function, flows out crude oil along polished rod, at this moment need replacing rubber Packing, some oil wells not just or well itself tilts due to pumping unit cause polished rod and packing on same center line, not to make Polished rod and packing are in uneven Frotteurism, eccentric wear occur, at this moment packing is ground away quickly, causes oil leak.

Utility model content

In view of the deficiencies in the prior art and defect, the utility model provides one kind in installation and use process In, it can relative position and fit clearance between convenient random adjustment polished rod and sealing device, and can not shut down In the case where, the portal polish-rod sealing device for multifunction of the rapid replacement polished rod seal filler of safe ready.

In order to solve the above-mentioned technical problem, the utility model adopts the following technical solution: including upper joint sleeve, in upper connection The top of set is provided with shoe cream room, and outer wall two sides are symmetrically arranged with extension bar, and the shoe cream room lower end is provided with pressure pad, under pressure pad End is the rubber packing that can be replaced, and the upper joint sleeve is connected through a screw thread with the shell that holds down assembly, the shell that holds down assembly The upper end in internal portion is equipped with trapezoidal stripper rubber, and internal lower end is equipped with inverted trapezoidal stripper rubber, trapezoidal stripper rubber and ladder It being equipped between shape stripper rubber and compresses rubber, the middle position internal symmetry of the shell that holds down assembly is set there are two compact heap, The compact heap is connect with the handle for the hull outside that holds down assembly by lead screw, and the shell that holds down assembly passes through with lower joint sleeve It being threadedly coupled, rubber packing is equipped with inside the lower joint sleeve, lower end is bolted with oil pumping machine well head, the rubber packing, Stripper rubber, compress rubber be it is hollow, polished rod can pass through freely.

The lead screw and the nut composition worm drive being fixed on shell as a further improvement of the utility model, One end of lead screw is fixedly connected with compact heap, and other end is fixedly connected with handle.

The shoe cream room is rounded as a further improvement of the utility model, concaves.

As a further improvement of the utility model, the rubber packing inside the trapezoidal stripper rubber and upper joint sleeve it Between, between the rubber packing inside inverted trapezoidal stripper rubber and lower joint sleeve O-ring seal is set.

The compression rubber and trapezoidal stripper rubber, compression rubber and ladder as a further improvement of the utility model, Tetrafluoro washer is equipped between shape stripper rubber.

Compared with prior art, the utility model has the beneficial effect that through rubber packing, stripper rubber, trapezoidal Stripper rubber and inverted trapezoidal stripper rubber have the work of cooperation to play sealing to the polished rod of pumping unit, it is ensured that polished rod and packing On same center line, prevent eccentric wear, and then prevent permeability, and structure is simple, it is easy to adjust, securely and reliably, work Make it is high-efficient, it is anti-pollution, maintenance time and the expense of equipment can be saved.

Detailed description of the invention

The utility model is further described with reference to the accompanying drawings and detailed description:

Fig. 1 is a kind of cross-sectional view of polished rod sealer of the utility model.

In figure: 1. shoe cream rooms, 2. upper joint sleeves, 3. pressure pads, 4. extension bars, 5. compact heaps, 6. rubber packings, 7.o type are close Seal, 8. trapezoidal stripper rubbers, 9. tetrafluoro washers, 10. compress rubber, 11. tetrafluoro washers, 12. inverted trapezoidal stripper rubbers, 13.O Type sealing ring, 14. rubber packings, 15. polished rods, 16. lower joint sleeves, 17. hold down assembly shell, 18. handles, 19. nuts, 20. Lead screw.

It is worth noting that, term " center ", "upper", "lower", "left", "right", " perpendicular in the description of the present invention, Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition The concrete meaning of language in the present invention.

Specific embodiment

In order to which the technical solution of the utility model and beneficial effect are more clearly understood, with reference to the accompanying drawing and it is embodied The utility model is described in further detail in example, it should be understood that the specific embodiments described herein are only used for managing The utility model is solved, is not used to limit the utility model, those of ordinary skill in the art are not before making creative work Every other embodiment obtained is put, is fallen within the protection scope of the utility model.

As shown in Figure 1, a kind of polished rod sealer, successively include from top to bottom 1. shoe cream rooms, 2. upper joint sleeves, 3. pressure pads, 4. extension bar, 6. rubber packings, 7.O type sealing ring, 8. trapezoidal stripper rubbers, 9. tetrafluoro washers, 10. compress rubber, 11. tetrafluoros Washer, 12. inverted trapezoidal stripper rubbers, 13.O type sealing ring, 14. rubber packings, 15. polished rods, 16. lower joint sleeves, 17. compression groups Part shell, 18. handles, 19. nuts, 20. lead screws, 5. compact heaps, the shoe cream room 1 is in the top of upper joint sleeve 2, the upper company The outer wall two sides of female connector 2 are symmetrically arranged with extension bar 4, and the lower end of the shoe cream room 1 is equipped with pressure pad 3, and the lower end of pressure pad 3 is rubber disk Root 6 is equipped with multiple sealants inside rubber packing 6, and the upper joint sleeve 2 is connected through a screw thread with the shell 17 that holds down assembly, institute It states the upper end inside the shell 17 that holds down assembly and is equipped with trapezoidal stripper rubber 8, lower end is equipped with inverted trapezoidal stripper rubber 12, trapezoidal sealing It is equipped between rubber 8 and inverted trapezoidal stripper rubber 12 and compresses rubber 10, the middle position for holding down assembly shell 17 is symmetrically set There are two handle 18, internal symmetry is set there are two compact heap 5, and one end of lead screw 20 is fixedly connected with handle 18, the other end and pressure Tight block 5 is fixedly connected, and the shell 17 that holds down assembly is connected through a screw thread with lower joint sleeve 16, is equipped with inside the lower joint sleeve Rubber packing 14.

As shown in Figure 1, the compact heap 5 forms spiral shell with the nut 19 being fixed on shell 17 by lead screw 20 with handle 18 Line transmission, when tightening handle 18, compact heap 5 can make to compress rubber 10 and phenyl tetrafluoride pad therewith to close to the movement of the direction of polished rod 15 Circle 9, tetrafluoro washer 11 clamp polished rod 15, prevent oil spout occur when replacement rubber packing.

As shown in Figure 1, the shoe cream room 1 is rounded, concave, lubricating oil can be added, for the thick well of oil, containing well and The effects of interval producing well can play lubrication polished rod, mitigate the corrosion of polished rod 15 and reduce the abrasion of packing, seeps in case of slight Oil, shoe cream room 1 can prevent the crude oil of exudation from flowing to ground, pollute environment.

As shown in Figure 1, between the trapezoidal stripper rubber 8 and rubber packing 6, inverted trapezoidal stripper rubber 12 and rubber packing It is equipped with O-ring seal between 14, is equipped between the compression rubber 10 and trapezoidal stripper rubber 8, inverted trapezoidal stripper rubber 12 each Equipped with a tetrafluoro washer, further polished rod is sealed, prevents permeability.

As shown in Figure 1, the shoe cream room 1, pressure pad 3, lower joint sleeve 16 are all directly contacted with polished rod 15 and two phenyl tetrafluoride pads Righting is carried out to polished rod together when circle 9,11 clamps, prevents underground load variations from polished rod 15 being caused to swing to packing 6,13 and rubber 8,10,12 eccentric wear.

Claims (5)

1. a kind of polished rod sealer, it is characterised in that: including upper joint sleeve, the top of upper joint sleeve is provided with shoe cream room, outside Wall two sides are symmetrically arranged with extension bar, and the shoe cream room lower end is provided with pressure pad, and the lower end of pressure pad is the rubber packing that can be replaced, The upper joint sleeve is connected through a screw thread with the shell that holds down assembly, and the upper end of the enclosure interior that holds down assembly is equipped with trapezoidal sealing Rubber, internal lower end are equipped with inverted trapezoidal stripper rubber, are equipped between trapezoidal stripper rubber and inverted trapezoidal stripper rubber and compress glue Skin, the middle position internal symmetry of the shell that holds down assembly are set there are two compact heap, the compact heap and the shell that holds down assembly External handle is connected by lead screw, and the shell that holds down assembly is connected through a screw thread with lower joint sleeve, in the lower joint sleeve Portion is equipped with rubber packing, and lower end is bolted with oil pumping machine well head, and the rubber packing, stripper rubber, compression rubber are hollow , polished rod can pass through freely.

2. a kind of polished rod sealer according to claim 1, it is characterised in that: the lead screw and the spiral shell being fixed on shell Mother's composition worm drive, one end of lead screw are fixedly connected with compact heap, and other end is fixedly connected with handle.

3. a kind of polished rod sealer according to claim 1, it is characterised in that: the shoe cream room is rounded, concaves.

4. a kind of polished rod sealer according to claim 1, it is characterised in that: the trapezoidal stripper rubber and upper joint sleeve O-ring seal is set between rubber packing between internal rubber packing, inside inverted trapezoidal stripper rubber and lower joint sleeve.

5. a kind of polished rod sealer according to claim 1, it is characterised in that: the compression rubber and trapezoidal sealant Skin compresses between rubber and inverted trapezoidal stripper rubber equipped with tetrafluoro washer.