Anti-winding sealing device for high-pressure oil pipe

Abstract

The utility model discloses an anti-winding sealing device for a high-pressure oil pipe. The anti-winding sealing device comprises an inner shaft, a rotating sleeve and a locking mechanism, a rotating sleeve is nested in the inner shaft, and the rotating sleeve is arranged in a set area of the inner shaft through a locking mechanism; the rotating sleeve is connected with the inner shaft through at least one bearing, the inner ring of the bearing and the inner shaft are fixedly arranged, and the outer ring of the bearing and the rotating sleeve are fixedly arranged; the rotary sleeve is provided with at least one medium inlet, and the inner shaft is provided with at least one medium outlet and at least one flow channel. The flow channels can be connected with the corresponding rotating grooves and the corresponding medium outlets. The rotating sleeve is provided with at least one rotating groove which is connected with the corresponding medium inlet; and the medium inlet is connected with the corresponding flow channel through the corresponding rotating groove, so that the medium can flow to the medium outlet from the medium inlet through the corresponding rotating groove and the corresponding flow channel in the rotating state of the rotating sleeve. According to the anti-winding sealing device for the high-pressure oil pipe, the service life of a pipe fitting can be prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of anti-winding seals and relates to an anti-winding seal device, in particular to an anti-winding seal device for a high-pressure oil pipe. Background Art

[0002] In the field of oil extraction, in some cases, the hydraulic pipeline needs to be rotated at a large angle (more than 360°), which requires a rotating device. For example, the hydraulic pipeline needs to pass through the movable joint of the manipulator, and the movable joint often rotates at a large angle.

[0003] The existing rotary structure generally adopts a hydraulic hose reel structure, or adopts an extra-long hydraulic hose; relying on the natural bending of the hydraulic hose itself to achieve the purpose of passing through the manipulator joint. Both methods require increasing the length of the hydraulic hose, and the structure is bulky. In addition, there are certain restrictions on the rotation angle of the manipulator joint, and it cannot rotate without limit. Long-term pulling of the hydraulic hose will also reduce the service life of the hydraulic hose.

[0004] In view of this, there is an urgent need to design a new high-pressure oil pipe anti-winding structure to overcome at least part of the above-mentioned defects of the existing high-pressure oil pipe. Utility Model Content

[0005] The utility model provides a high-pressure oil pipe anti-winding sealing device, which can make the equipment rotate freely without affecting the normal operation of the equipment and prolong the service life of the pipe fittings.

[0006] In order to solve the above technical problems, according to one aspect of the utility model, the following technical solution is adopted:

[0007] A high-pressure oil pipe anti-winding sealing device, the high-pressure oil pipe anti-winding sealing device comprising: an inner shaft, a rotating sleeve and a locking mechanism;

[0008] The rotating sleeve is nested in the inner shaft, and the locking mechanism sets the rotating sleeve in a set area of ​​the inner shaft; the rotating sleeve is connected to the inner shaft through at least one bearing, the inner ring of the bearing is fixedly arranged with the inner shaft, and the outer ring of the bearing is fixedly arranged with the rotating sleeve;

[0009] The rotating sleeve is provided with at least one medium inlet, the inner shaft is provided with at least one medium outlet, and the inner shaft is provided with at least one flow channel; the rotating sleeve is provided with at least one rotating groove, and the rotating groove is connected to the corresponding medium inlet; the flow channel can connect the corresponding rotating groove and the corresponding medium outlet;

[0010] The medium inlet is connected to the corresponding flow channel through the corresponding rotation groove, so that when the rotating sleeve rotates, the medium can flow from the medium inlet through the corresponding rotation groove and the corresponding flow channel to the corresponding medium outlet.

[0011] As an implementation mode of the utility model, the rotating sleeve is connected to the inner shaft via two bearings, and the two bearings include a first bearing and a second bearing; the first bearing and the second bearing are respectively arranged at two ends of the rotating sleeve.

[0012] As an implementation mode of the utility model, a limiting mechanism is provided at one end of the inner shaft, and the rotating sleeve is arranged between the limiting mechanism and the locking mechanism.

[0013] As an implementation mode of the utility model, the rotating sleeve is provided with a first medium inlet, a second medium inlet and a third medium inlet, the inner shaft is provided with a first medium outlet, a second medium outlet and a third medium outlet, and the inner shaft is provided with a first flow channel, a second flow channel and a third flow channel;

[0014] The rotating sleeve is provided with a first rotating groove, a second rotating groove and a third rotating groove, wherein the first rotating groove is connected to the first medium inlet, the second rotating groove is connected to the second medium inlet, and the third rotating groove is connected to the third medium inlet;

[0015] The first medium inlet is connected to the first flow channel through the first rotating groove, and the first flow channel is connected to the first medium outlet, so that when the rotating sleeve rotates, the medium can flow from the first medium inlet through the corresponding first rotating groove and the first flow channel to the first medium outlet;

[0016] The second medium inlet is connected to the second flow channel through the second rotating groove, and the second flow channel is connected to the second medium outlet, so that when the rotating sleeve rotates, the medium can flow from the second medium inlet through the corresponding second rotating groove and the second flow channel to the second medium outlet;

[0017] The third medium inlet is connected to the third flow channel through the third rotating groove, and the third flow channel is connected to the third medium outlet, so that when the rotating sleeve rotates, the medium can flow from the third medium inlet through the corresponding third rotating groove and the third flow channel to the third medium outlet.

[0018] As an embodiment of the utility model, a first sealing ring and a second sealing ring are respectively arranged above and below the first rotating groove, a third sealing ring and a fourth sealing ring are respectively arranged above and below the second rotating groove, and a fifth sealing ring and a sixth sealing ring are respectively arranged above and below the third rotating groove.

[0019] As an implementation mode of the present invention, each rotating groove is arranged circumferentially.

[0020] As an implementation mode of the utility model, two sides of each rotating groove are sealed by two sealing mechanisms.

[0021] As an implementation manner of the present utility model, the sealing mechanism is a sealing ring.

[0022] The beneficial effect of the utility model is that the high-pressure oil pipe anti-winding sealing device provided by the utility model can make the equipment rotate freely without affecting the normal operation of the equipment, thereby extending the service life of the pipe fittings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a high-pressure oil pipe anti-winding sealing device in one embodiment of the utility model.

[0024] Figure 2 It is a schematic structural diagram of some components of a high-pressure oil pipe anti-winding sealing device in one embodiment of the utility model.

[0025] Figure 3 It is a schematic structural diagram of some components of a high-pressure oil pipe anti-winding sealing device in one embodiment of the utility model.

[0026] Figure 4 for Figure 3 MM section view. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0028] In order to further understand the present invention, preferred embodiments of the present invention are described below in conjunction with examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of the present invention, rather than limiting the claims of the present invention.

[0029] The description in this section is only for several typical embodiments, and the present invention is not limited to the scope of the embodiments. The same or similar prior art means and some technical features in the embodiments are mutually replaced and are also within the scope of the present invention.

[0030] The term “connection” in the specification includes both direct connection and indirect connection.

[0031] The utility model discloses a high-pressure oil pipe anti-winding sealing device. Figures 1 to 4 This is a schematic diagram of the structure of the high-pressure oil pipe anti-winding sealing device in one embodiment of the utility model; please refer to Figures 1 to 4 The high-pressure oil pipe anti-winding sealing device comprises: an inner shaft 1, a rotating sleeve 3 and a locking mechanism 5. The rotating sleeve 3 is embedded in the inner shaft 1, and the locking mechanism 5 sets the rotating sleeve 3 in a set area of ​​the inner shaft 1; the rotating sleeve 3 is connected to the inner shaft 1 through at least one bearing, the inner ring of the bearing is fixedly arranged with the inner shaft 1, and the outer ring of the bearing is fixedly arranged with the rotating sleeve 3.

[0032] The rotating sleeve 3 is provided with at least one medium inlet 301, the inner shaft 1 is provided with at least one medium outlet 101, and the inner shaft 101 is provided with at least one flow channel 103; the rotating sleeve 3 is provided with at least one rotating groove 303, and the rotating groove 303 is connected to the corresponding medium inlet 301; the flow channel 103 can connect the corresponding rotating groove 303 and the corresponding medium outlet 101.

[0033] The medium inlet 301 is connected to the corresponding flow channel 103 through the corresponding rotation groove 303 , so that when the rotating sleeve 3 rotates, the medium can flow from the medium inlet 301 through the corresponding rotation groove 303 and the corresponding flow channel 103 to the corresponding medium outlet 101 .

[0034] In an embodiment of the present invention, the rotating sleeve 3 is connected to the inner shaft via two bearings, and the two bearings include a first bearing 305 and a second bearing 307 ; the first bearing 305 and the second bearing 307 are respectively disposed at two ends of the rotating sleeve 3 .

[0035] like Figure 3 As shown, a limiting mechanism 105 may be provided at one end of the inner shaft 1, and the rotating sleeve 3 is disposed between the limiting mechanism 105 and the locking mechanism 5. The cross section of the inner shaft 1 may be an inverted T-shaped structure, and the limiting mechanism 105 may be the bottom of the inverted T-shaped structure.

[0036] Each rotating groove 303 may be arranged circumferentially. Both sides of each rotating groove 303 are sealed by two sealing mechanisms 309 and 311; the sealing mechanisms 309 and 311 may both be sealing rings.

[0037] In one embodiment of the utility model, the rotating sleeve 3 is provided with a first medium inlet 301a, a second medium inlet 301b and a third medium inlet 301c, the inner shaft 1 is provided with a first medium outlet 101a, a second medium outlet 101b and a third medium outlet 101c, and the inner shaft 1 is provided with a first flow channel, a second flow channel and a third flow channel (the flow channels are not connected to each other). The rotating sleeve 3 is provided with a first rotating groove 303a, a second rotating groove 303b and a third rotating groove 303c, the first rotating groove 303a is connected to the first medium inlet 301a, the second rotating groove 303b is connected to the second medium inlet 301b, and the third rotating groove 303c is connected to the third medium inlet 301c. The first medium inlet 301a is connected to the first flow channel through the first rotating groove 303a, and the first flow channel is connected to the first medium outlet 101a, so that when the rotating sleeve 3 is rotating, the medium can flow from the first medium inlet 301a to the first medium outlet 101a through the corresponding first rotating groove 303a and the first flow channel. The second medium inlet 301b is connected to the second flow channel through the second rotating groove 303b, and the second flow channel is connected to the second medium outlet 101b, so that when the rotating sleeve 3 rotates, the medium can flow from the second medium inlet 301b to the second medium outlet 101b through the corresponding second rotating groove 303b and the second flow channel. The third medium inlet 301c is connected to the third flow channel through the third rotating groove 303c, and the third flow channel is connected to the third medium outlet 101c, so that when the rotating sleeve 3 rotates, the medium can flow from the third medium inlet 301c to the third medium outlet 101c through the corresponding third rotating groove 303c and the third flow channel. In one embodiment, the first sealing ring 309a and the second sealing ring 311a are respectively arranged above and below the first rotating groove 303a, the third sealing ring 309b and the fourth sealing ring 311b are respectively arranged above and below the second rotating groove 303b, and the fifth sealing ring 309c and the sixth sealing ring 311c are respectively arranged above and below the third rotating groove 303c.

[0038] In one usage scenario of the utility model, the high-pressure oil pipe can be connected to other components through the high-pressure oil pipe anti-winding sealing device of the utility model, and the high-pressure oil pipe can rotate freely without affecting other equipment; when the high-pressure oil pipe rotates, the medium of the corresponding pipeline enters the corresponding rotating groove and flow channel through the medium inlet of the high-pressure oil pipe anti-winding sealing device of the utility model, and flows to other equipment through the corresponding medium outlet.

[0039] In summary, the high-pressure oil pipe anti-winding sealing device proposed by the utility model can make the equipment rotate freely without affecting the normal operation of the equipment, thereby extending the service life of the pipe fittings.

[0040] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0041] The description and application of the utility model here are illustrative, and it is not intended to limit the scope of the utility model to the above-mentioned embodiments. The effects or advantages involved in the embodiments may not be embodied in the embodiments due to interference from various factors, and the description of the effects or advantages is not used to limit the embodiments. The deformation and changes of the embodiments disclosed here are possible, and the replacement of the embodiments and the various equivalent components are well known to those of ordinary skill in the art. It should be clear to those skilled in the art that the utility model can be implemented in other forms, structures, arrangements, proportions, and with other components, materials and parts without departing from the spirit or essential features of the utility model. Other deformations and changes can be made to the embodiments disclosed here without departing from the scope and spirit of the utility model.

Claims

1. A high-pressure oil pipe anti-winding sealing device, characterized in that: The high-pressure oil pipe anti-winding sealing device comprises: an inner shaft, a rotating sleeve and a locking mechanism; The rotating sleeve is nested in the inner shaft, and the locking mechanism sets the rotating sleeve in a set area of ​​the inner shaft; the rotating sleeve is connected to the inner shaft through at least one bearing, the inner ring of the bearing is fixedly arranged with the inner shaft, and the outer ring of the bearing is fixedly arranged with the rotating sleeve; The rotating sleeve is provided with at least one medium inlet, the inner shaft is provided with at least one medium outlet, and the inner shaft is provided with at least one flow channel; the rotating sleeve is provided with at least one rotating groove, and the rotating groove is connected to the corresponding medium inlet; the flow channel can connect the corresponding rotating groove and the corresponding medium outlet; The medium inlet is connected to the corresponding flow channel through the corresponding rotation groove, so that when the rotating sleeve rotates, the medium can flow from the medium inlet through the corresponding rotation groove and the corresponding flow channel to the corresponding medium outlet.

2. The high-pressure oil pipe anti-winding sealing device according to claim 1 is characterized in that: The rotating sleeve is connected to the inner shaft via two bearings, and the two bearings include a first bearing and a second bearing; the first bearing and the second bearing are respectively arranged at two ends of the rotating sleeve.

3. The high-pressure oil pipe anti-winding sealing device according to claim 1 is characterized in that: A limiting mechanism is provided at one end of the inner shaft, and the rotating sleeve is arranged between the limiting mechanism and the locking mechanism.

4. The high-pressure oil pipe anti-winding sealing device according to claim 1, characterized in that: The rotating sleeve is provided with a first medium inlet, a second medium inlet and a third medium inlet, the inner shaft is provided with a first medium outlet, a second medium outlet and a third medium outlet, and the inner shaft is provided with a first flow channel, a second flow channel and a third flow channel; The rotating sleeve is provided with a first rotating groove, a second rotating groove and a third rotating groove, wherein the first rotating groove is connected to the first medium inlet, the second rotating groove is connected to the second medium inlet, and the third rotating groove is connected to the third medium inlet; The first medium inlet is connected to the first flow channel through the first rotating groove, and the first flow channel is connected to the first medium outlet, so that when the rotating sleeve rotates, the medium can flow from the first medium inlet through the corresponding first rotating groove and the first flow channel to the first medium outlet; The second medium inlet is connected to the second flow channel through the second rotating groove, and the second flow channel is connected to the second medium outlet, so that when the rotating sleeve rotates, the medium can flow from the second medium inlet through the corresponding second rotating groove and the second flow channel to the second medium outlet; The third medium inlet is connected to the third flow channel through the third rotating groove, and the third flow channel is connected to the third medium outlet, so that when the rotating sleeve rotates, the medium can flow from the third medium inlet through the corresponding third rotating groove and the third flow channel to the third medium outlet.

5. The high-pressure oil pipe anti-winding sealing device according to claim 4 is characterized in that: A first sealing ring and a second sealing ring are respectively arranged above and below the first rotating groove, a third sealing ring and a fourth sealing ring are respectively arranged above and below the second rotating groove, and a fifth sealing ring and a sixth sealing ring are respectively arranged above and below the third rotating groove.

6. The high-pressure oil pipe anti-winding sealing device according to claim 1, characterized in that: The rotating grooves are arranged circumferentially.

7. The high-pressure oil pipe anti-winding sealing device according to claim 1, characterized in that: Both sides of each rotating groove are sealed by two sealing mechanisms.

8. The high-pressure oil pipe anti-winding sealing device according to claim 7, characterized in that: The sealing mechanism is a sealing ring.

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