Cable grease injection sealing screwed plug device

Abstract

The embodiment of the utility model discloses a cable grease injection sealing screwed plug device which comprises a sealing assembly fixedly installed at the top end of a protection pipe and used for fixing a cable, and a connecting pipe used for protecting the cable is fixedly installed at the top end of the sealing assembly. The top end of the connecting pipe is provided with a first screwed plug assembly used for screwed plug of the connecting pipe. The second screwed plug device comprises a second screwed plug assembly arranged on the protection pipe, and a second sealing pipe used for being in threaded connection with the second screwed plug assembly is arranged below the second screwed plug assembly. Threaded connection between the first bolt and the connecting pipe is controlled through the first nut, so that the cable can be screwed. Then rubber grease is injected into the sealing pipe through the grease injection pipe, so that the cable can be further protected, and the cable is prevented from shaking during use; and finally, the threaded connection between the second bolt and the second sealing pipe is controlled through the second nut, so that the cable can be plugged, and the cable can be protected to prevent the cable from shaking during use.

Description

Technical Field

[0001] The embodiment of the utility model relates to the technical field of downhole tools for oil drilling and production, and in particular to a cable grease injection sealing wire plugging device. Background Art

[0002] The production of oil wells by submersible electric pumps in oil fields is to lower the electric submersible pumps to the depths of the oil wells to pump oil. The power of the electric submersible pumps is provided by submersible cables. The lower end of the submersible cables is connected to the submersible motors in the wells, and the upper end of the submersible cables is connected to the ground transmission lines. In order to prevent the wear of the submersible cables, it is necessary to use grease-filled sealing plugs to protect the submersible cables. For example, as shown in the cable grease-filled sealing plug device with Chinese patent application number CN202122455883.3, the device is first sleeved on the outside of the cable, and then the lower end of the cable is connected to the logging equipment, and then the lower end of the plug is fixedly installed with the wellhead by threads. When the cable moves up and down, the sealing between the cable and the overflow bin can be achieved through the first sealing body, the sealing ring can achieve the sealing between the screw rod and the overflow bin, and the second sealing body can achieve the sealing between the screw rod and the plug.

[0003] However, when the cable in the screw rod is protected by the screw plug and the overflow bin, the lack of a device for positioning the cable may cause the cable to shake during use, thereby causing the submersible cable to wear. Utility Model Content

[0004] To this end, an embodiment of the utility model provides a cable grease injection sealing wire plug device to solve the problem in the prior art that when a wire plug and an overflow bin are used to protect the cable in the screw rod, there is a lack of a device for positioning the cable, which may cause the cable to shake during use and cause wear of the submersible cable.

[0005] In order to achieve the above purpose, the embodiment of the utility model provides the following technical solutions:

[0006] A cable grease-injected sealing thread plugging device comprises a protective tube for protecting the cable, a thread plugging device 1 for plugging the cable is arranged above the protective tube, and a thread plugging device 2 for plugging the cable is arranged below the protective tube.

[0007] The thread plugging device includes a sealing assembly fixedly installed on the top of the protective tube for fixing the cable, a connecting tube for protecting the cable is fixedly installed on the top of the sealing assembly, and a thread plugging assembly for thread plugging the connecting tube is provided on the top of the connecting tube.

[0008] The second thread plugging device comprises a second thread plugging assembly arranged on the protective tube, and a second sealing tube for threaded connection with the second thread plugging assembly is arranged below the second thread plugging assembly.

[0009] Furthermore, the sealing assembly includes a sealing tube for protecting the cable, and the cable passes through the top end of the sealing tube body.

[0010] Furthermore, a grease injection tube for injecting grease into the sealing tube for sealing is provided at the right end of the sealing tube, and a liquid discharge tube for discharging liquid in the sealing tube is provided at the left end of the sealing tube.

[0011] Furthermore, the thread plug assembly includes a bolt that is threadably connected to the connecting tube and is used to thread plug the cable.

[0012] Furthermore, a nut 1 for driving the bolt 1 to be threadedly connected to the connecting pipe is fixedly installed on the top end of the bolt 1.

[0013] Furthermore, the second thread plug assembly includes a second bolt which is threadably connected to the second sealing tube and is used for thread plugging the cable.

[0014] Furthermore, a nut 2 for driving the bolt 2 to be threadedly connected with the sealing tube 2 is fixedly installed at the top end of the bolt 2, and the nut 2 is through-connected with the protective tube.

[0015] The utility model embodiment has the following advantages:

[0016] By providing the first and second thread plugging devices, when protecting the cable, the cable can be first inserted into the protective tube through the sealing tube in turn, and the rod body of the second bolt can be passed into the second sealing tube; then the threaded connection between the first bolt and the connecting tube can be controlled by the first nut, so that the cable can be threaded; then rubber grease is injected into the sealing tube through the grease injection tube, so that the cable can be further protected to prevent the cable from shaking when in use; finally, the threaded connection between the second bolt and the second sealing tube can be controlled by the second nut, so that the cable can be threaded, and then the cable can be protected to prevent the cable from shaking when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0018] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a front cross-sectional view of the protection tube of the utility model;

[0021] Figure 3 This is a diagram showing the coordination of the first and second thread plugging devices of the utility model.

[0022] In the accompanying drawings, the names of the components represented by the reference numerals are listed as follows:

[0023] 100-cable;

[0024] 200-thread plugging device one, 210-sealing assembly, 211-sealing tube one, 212-grease injection tube, 213-drain pipe, 220-connecting tube, 230-thread plugging assembly one, 231-nut one, 232-bolt one;

[0025] 300-thread plug device 2, 310-sealing tube 2, 320-thread plug assembly 2, 321-nut 2, 322-bolt 2;

[0026] 400-Protective tube. DETAILED DESCRIPTION

[0027] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] The terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0029] See also Figure 1-Figure 3The utility model provides a cable grease injection sealing wire plugging device.

[0030] The invention comprises a protection tube 400 for protecting the cable 100 , a first plugging device 200 for plugging the cable 100 is arranged above the protection tube 400 , and a second plugging device 300 for plugging the cable 100 is arranged below the protection tube 400 .

[0031] The thread plugging device 200 includes a sealing assembly 210 fixedly mounted on the top of the protective tube 400 for fixing the cable 100, a connecting tube 220 for protecting the cable 100 is fixedly mounted on the top of the sealing assembly 210, and a thread plugging assembly 230 for thread plugging the connecting tube 220 is provided on the top of the connecting tube 220.

[0032] The sealing assembly 210 includes a sealing tube 211 for protecting the cable 100, and the cable 100 passes through the top of the sealing tube 211; and the protective tube 400 is connected to the bottom of the sealing tube 211, so that the sealing tube 211 and the protective tube 400 can be used to protect the cable 100.

[0033] A grease injection tube 212 for injecting grease into the sealing tube 211 for sealing is provided at the right end of the sealing tube 211, so that rubber grease can be injected into the sealing tube 211 by using the grease injection tube 212, so as to seal the cable 100 in the sealing tube 211 and prevent the cable 100 from shaking during use; a drain pipe 213 for discharging liquid in the sealing tube 211 is provided at the left end of the sealing tube 211, so that when the grease injection tube 212 is used to inject rubber grease into the sealing tube 211 by using the drain pipe 213, the liquid in the sealing tube 211 can be discharged through the drain pipe 213.

[0034] The plug assembly 230 includes a bolt 232 threadedly connected to the connecting tube 220 for plugging the cable 100, and the cable 100 passes through the rod of the bolt 232, so that the cable 100 can be plugged by threading the bolt 232 and the connecting tube 220.

[0035] A nut 231 for driving the bolt 232 to be threadedly connected to the connecting tube 220 is fixedly installed at the top of the bolt 232, and the nut 231 and the cable 100 are slidably connected; thus, when the cable 100 is placed in the protective tube 400 to protect the cable 100, the threaded connection between the bolt 232 and the connecting tube 220 can be controlled by the nut 231, so that the cable 100 can be thread-plugged; then, rubber grease is injected into the sealing tube 211 through the grease injection tube 212, so that the cable 100 can be further protected to prevent the cable from shaking during use.

[0036] The second thread plugging device 300 includes a second thread plugging assembly 320 disposed on the protective tube 400 , a second sealing tube 310 for threaded connection with the second thread plugging assembly 320 is disposed below the second thread plugging assembly 320 , and the second sealing tube 310 is welded to the bottom end of the protective tube 400 .

[0037] The plug assembly 320 includes a bolt 332 which is threadedly connected to the sealing tube 310 for plugging the cable 100, and the cable 100 passes through the top of the sealing tube 310; a nut 321 which is used to drive the bolt 332 to be threadedly connected to the sealing tube 310 is fixedly installed at the top of the bolt 332, and the nut 321 is connected to the protective tube 400; so that when protecting the cable 100, the cable 100 can be first inserted into the protective tube 400 through the sealing tube 211 in turn, and pass through the bolt 332 and the sealing tube 210. 310; then, the threaded connection between the bolt 232 and the connecting tube 220 is controlled by the nut 231, so that the cable 100 can be threadedly plugged; then, rubber grease is injected into the sealing tube 211 through the grease injection tube 212, so that the cable 100 can be further protected to prevent the cable from shaking during use; finally, the threaded connection between the bolt 2 332 and the sealing tube 2 310 is controlled by the nut 2 321, so that the cable 100 can be threadedly plugged, and then the cable 100 can be protected to prevent the cable from shaking during use.

[0038] Although the utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

Claims

1. A cable grease injection sealing plug device, characterized in that: It comprises a protection tube (400) for protecting a cable (100), a first plugging device (200) for plugging the cable (100) being arranged above the protection tube (400), and a second plugging device (300) for plugging the cable (100) being arranged below the protection tube (400); The first thread plugging device (200) comprises a sealing component (210) fixedly mounted on the top of the protection tube (400) for fixing the cable (100); a connecting tube (220) for protecting the cable (100) is fixedly mounted on the top of the sealing component (210); and a first thread plugging component (230) for plugging the connecting tube (220) is provided on the top of the connecting tube (220); The second thread plugging device (300) comprises a second thread plugging assembly (320) arranged on a protective tube (400), and a second sealing tube (310) for threaded connection with the second thread plugging assembly (320) is arranged below the second thread plugging assembly (320).

2. A cable grease injection sealing plug device according to claim 1, characterized in that: The sealing assembly (210) comprises a sealing tube (211) for protecting the cable (100), and the cable (100) passes through the top end of the sealing tube (211).

3. A cable grease injection sealing plug device according to claim 2, characterized in that: The right end of the sealing tube (211) is provided with a grease injection tube (212) for injecting grease into the sealing tube (211) for sealing, and the left end of the sealing tube (211) is provided with a liquid discharge tube (213) for discharging liquid in the sealing tube (211).

4. A cable grease injection sealing plug device according to claim 3, characterized in that: The thread plug assembly (230) includes a bolt (232) threadedly connected to the connecting tube (220) for thread plugging the cable (100).

5. A cable grease injection sealing plug device according to claim 4, characterized in that: A nut (231) for driving the bolt (232) to be threadedly connected to the connecting pipe (220) is fixedly mounted on the top end of the bolt (232).

6. A cable grease injection sealing plug device according to claim 1, characterized in that: The second thread plug assembly (320) includes a second bolt (332) threadedly connected to the second sealing tube (310) for thread plugging the cable (100).

7. A cable grease injection sealing plug device according to claim 6, characterized in that: A nut (321) for driving the second bolt (332) and the second sealing tube (310) to be threadedly connected is fixedly installed on the top end of the second bolt (332), and the second nut (321) is connected to the protective tube (400).

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