A connection for oil production

Abstract

The utility model provides a kind of connector for oil production, including connector assembly, the connector assembly includes first connecting pipe, second connecting pipe, fixed pipe, first ring body, second ring body, inner tooth ring, several gears, several limit rotating mechanisms, second rubber sealing ring;The utility model moves first ring body by hand-held second connecting pipe to drive, make second connecting pipe move to fixed pipe, first ring body moves to circular recess with thread rod, after this, hand-held limit rotating mechanism drives second ring body to rotate, second ring body drives inner tooth ring to rotate on several gears, gear drives thread rod to rotate in thread recess, to drive second connecting pipe and second rubber sealing ring closely adhere to, then operate limit rotating mechanism and clamping groove are adhered, for the position of second ring body is limited, to avoid vibration gradually loosens thread rod from thread recess by rotating, firmly fixed, reduce the labor intensity of relevant personnel.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a connector for oil extraction. Background Technology

[0002] A connector is a key piece of equipment used in the oil extraction process to connect oil well pipes and equipment.

[0003] Chinese patent CN221761842U discloses an oil extraction connector, comprising: a first connector mechanism including a first connector assembly, a plurality of positioning bracket assemblies rotatably connected to the outside of the first connector assembly, a positioning rod assembly rotatably engaged on the positioning bracket assemblies, and a rubber ring located on one side of the first connector assembly; and a second connector mechanism including a second connector assembly connected to the first connector assembly, and a positioning groove formed on the second connector assembly. This invention connects the second connector assembly to the first connector assembly, with the rubber ring providing a seal. Rotating the positioning bracket assemblies allows the rotating positioning rod assembly to engage with the positioning groove, thus tightly connecting the first and second connector assemblies. This significantly improves the connection speed for workers and avoids the loss of bolts.

[0004] The aforementioned use of a rotating handle allows the threaded rod to rotate along the positioning plate. The rotation of the threaded rod causes the positioning block to abut against the positioning groove, thus fixing the second connector assembly onto the first connector assembly. During oil extraction, the connector is often affected by vibration, mainly due to the strong vibration generated during the operation of pump station equipment. Vibration is one of the most common and direct causes of threaded rod loosening. Continuous mechanical vibration reduces the friction between the threaded pairs, causing the threaded rod to gradually rotate and loosen, resulting in an unreliable fixation. This requires continuous maintenance by relevant personnel, increasing their workload. Therefore, a connector for oil extraction is proposed. Utility Model Content

[0005] In view of this, the present invention aims to provide a connector for oil production to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial alternative.

[0006] The technical solution of this utility model embodiment is implemented as follows: An oil extraction connector includes a connector assembly, the connector assembly including a first connecting pipe, a second connecting pipe, a fixed pipe, a first ring body, a second ring body, an internal gear ring, a plurality of gears, a plurality of limiting rotation mechanisms, a second rubber sealing ring, and a plurality of threaded rods, wherein the fixed pipe is disposed at one end of the first connecting pipe, and an annular through groove is formed at the end of the fixed pipe away from the first connecting pipe; the second rubber sealing ring is embedded in the inner wall of the annular through groove, and one end of the second connecting pipe is in contact with the second rubber sealing ring, the outer wall of the second connecting pipe is in contact with the inner wall of the fixed pipe in the annular through groove; the first ring body is disposed at the second connecting pipe... The outer wall of the tube, and the outer wall of the first ring body are uniformly provided with first circular through holes; the outer wall of the fixed tube is uniformly provided with circular grooves, and the inner wall of the circular grooves is provided with threaded grooves; the outer walls of a plurality of threaded rods are rotatably connected to the inner walls of the corresponding first circular through holes by bearings, and the plurality of threaded rods pass through the corresponding circular grooves and are threadedly connected to the inner walls of the corresponding threaded grooves; a plurality of gears are disposed at one end of the corresponding threaded rods, and the plurality of gears mesh with the inner wall of the internal gear ring; the second ring body is rotatably connected to the outer wall of the first ring body by bearings, and the internal gear ring is disposed on the inner wall of the second ring body; a plurality of limiting rotation mechanisms are uniformly disposed on the second ring body.

[0007] In some embodiments, the limiting rotation mechanism includes a rotating rod, a tapered limiting rod, a threaded portion, a third ring body, a fourth ring body, a spring, and a rotating handle. The rotating rod passes through the second ring body and is fixedly connected to it. A circular movable cavity is formed inside the rotating rod, and threaded through holes and a second circular through hole are respectively formed at both ends of the rotating rod, both communicating with the circular movable cavity. The tapered limiting rod passes sequentially through the second circular through hole, the circular movable cavity, and the threaded through hole, and a threaded portion is provided on the outer wall of the tapered limiting rod. The outer wall of the threaded part is threaded to the inner wall of the threaded through hole; the outer wall of the fixed tube is evenly provided with slots, and the outer wall of the tapered limiting rod is fitted to the inner wall of the corresponding slot; the third ring is disposed on the outer wall of the tapered limiting rod, and the fourth ring is rotatably connected to the outer wall of the third ring through a bearing, and the tapered limiting rod passes through the fourth ring; the outer wall of the fourth ring is slidably connected to the inner wall of the circular movable cavity, and one end of the spring is disposed on one side of the fourth ring, and the other end of the spring is disposed on the inner wall of the circular movable cavity; the rotating handle is disposed at one end of the tapered limiting rod.

[0008] In some embodiments, a first rubber sealing ring is embedded in the outer wall of the second connecting pipe, and the outer wall of the first rubber sealing ring is attached to the inner wall of the annular groove.

[0009] In some embodiments, the outer wall of the rotating rod is provided with a rubber sleeve.

[0010] In some embodiments, the outer wall of the circular movable cavity is uniformly provided with grooves, and the outer wall of the fourth ring is uniformly provided with sliders, the outer wall of the sliders being slidably connected to the inner wall of the grooves.

[0011] The present invention has the following advantages due to the adoption of the above technical solution:

[0012] I. This utility model involves moving the first ring body by holding the second connecting tube, causing the second connecting tube to move into the fixed tube. The first ring body then moves the threaded rod into the circular groove. Subsequently, the hand-held limiting rotation mechanism drives the second ring body to rotate. The second ring body drives the internal gear ring to rotate on several gears, and the gears drive the threaded rod to rotate in the threaded groove, thereby causing the second connecting tube to fit tightly with the second rubber sealing ring. Then, the limiting rotation mechanism is operated to fit into the slot to limit the position of the second ring body, thereby preventing vibration from gradually rotating and loosening the threaded rod from the threaded groove, ensuring a secure fixation, and reducing the labor intensity of relevant personnel.

[0013] II. This utility model uses a hand-held rotating handle to drive the conical limiting rod to rotate. The conical limiting rod drives the threaded part to rotate out of the threaded through hole. Then, the elastic potential energy of the spring pushes the fourth ring body to move. The fourth ring body drives the conical limiting rod to move into the corresponding slot through the third ring body, which is used to limit the position of the second ring body. Thus, the second ring body can limit the position of the gear through the internal gear ring, preventing vibration from gradually rotating and loosening the threaded rod from the threaded groove.

[0014] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1This is a structural diagram of the present invention;

[0017] Figure 2 This utility model Figure 1 Enlarged structural diagram of area A;

[0018] Figure 3 This is a top view of the structure of this utility model;

[0019] Figure 4 This utility model Figure 3 Side section diagram of BB structure;

[0020] Figure 5 This utility model Figure 4 Enlarged structural diagram of region C;

[0021] Figure 6 This utility model Figure 4 Enlarged structural diagram of region D;

[0022] Figure 7 This utility model Figure 4 Enlarged structural diagram of region E;

[0023] Figure 8 This utility model Figure 4 Enlarged structural diagram of region F.

[0024] Reference numerals: 1. Connector assembly; 2. Slot; 3. Rubber sleeve; 4. Annular through groove; 5. First rubber sealing ring; 6. First circular through hole; 7. Circular groove; 8. Threaded groove; 9. Circular movable cavity; 10. First connecting pipe; 11. Second connecting pipe; 12. Fixing pipe; 13. First ring body; 14. Second ring body; 15. Internal gear ring; 16. Gear; 17. Limiting rotation mechanism; 18. Second rubber sealing ring; 19. Threaded rod; 20. Threaded through hole; 21. Slide groove; 22. Slider; 23. Second circular through hole; 170. Rotating rod; 171. Conical limiting rod; 172. Threaded part; 173. Third ring body; 174. Fourth ring body; 175. Spring; 176. Rotating handle. Detailed Implementation

[0025] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0026] It is important to note that terms such as "first," "second," "symmetric," "array," "set in," and "set with" are used only to distinguish between descriptive and positional descriptions and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified with terms such as "first" or "symmetric" may explicitly or implicitly include one or more of that feature; similarly, when the quantity of certain features is not limited by words such as "two" or "three," it should be noted that such features also explicitly or implicitly include one or more features.

[0027] In this invention, unless otherwise explicitly specified and limited, terms such as "installation," "connection," and "fixation" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection, a direct connection, a welding connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the accompanying drawings and specific circumstances.

[0028] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0029] like Figures 1-8 As shown, this utility model embodiment provides an oil extraction connector, including a connector assembly 1. The connector assembly 1 includes a first connecting pipe 10, a second connecting pipe 11, a fixing pipe 12, a first ring body 13, a second ring body 14, an internal gear ring 15, several gears 16, several limiting rotation mechanisms 17, a second rubber sealing ring 18, and several threaded rods 19. The fixing pipe 12 is disposed at one end of the first connecting pipe 10, and an annular groove 4 is formed at the end of the fixing pipe 12 away from the first connecting pipe 10. The inner wall of the annular groove 4 is fitted with the second rubber sealing ring 18, and one end of the second connecting pipe 11 is in contact with the second rubber sealing ring 18. The outer wall of the second connecting pipe 11 is in contact with the inner wall of the annular groove 4 of the fixing pipe 12. The first ring body 13 is provided with... The outer wall of the second connecting pipe 11 is provided with a first circular through hole 6 evenly opened on the outer wall of the first ring body 13, the outer wall of the fixing pipe 12 is provided with a circular groove 7 evenly opened on the outer wall, and the inner wall of the circular groove 7 is provided with a threaded groove 8. The outer walls of several threaded rods 19 are rotatably connected to the inner walls of the corresponding first circular through holes 6 through bearings. Several threaded rods 19 pass through the corresponding circular grooves 7 and are threadedly connected to the inner walls of the corresponding threaded grooves 8. Several gears 16 are set at one end of the corresponding threaded rods 19, and the several gears 16 mesh with the inner walls of the internal gear ring 15. The second ring body 14 is rotatably connected to the outer wall of the first ring body 13 through bearings, and the internal gear ring 15 is set on the inner wall of the second ring body 14. Several limiting rotation mechanisms 17 are evenly arranged on the second ring body 14.

[0030] In this embodiment, specifically, the limiting rotation mechanism 17 includes a rotating rod 170, a tapered limiting rod 171, a threaded portion 172, a third ring body 173, a fourth ring body 174, a spring 175, and a rotating handle 176. The rotating rod 170 passes through the second ring body 14 and is fixedly connected to the second ring body 14. A circular movable cavity 9 is formed inside the rotating rod 170, and threaded through holes 20 and second circular through holes 23 are respectively formed at both ends of the rotating rod 170. All three are connected to the circular movable cavity 9. The conical limiting rod 171 passes through the second circular through hole 23, the circular movable cavity 9, and the threaded through hole 20 in sequence. The outer wall of the conical limiting rod 171 is provided with a threaded part 172. The outer wall of the threaded part 172 is threadedly connected to the inner wall of the threaded through hole 20. The outer wall of the fixing tube 12 is evenly provided with slots 2, and the outer wall of the conical limiting rod 171 fits against the inner wall of the corresponding slot 2. The third ring 173 is provided on the outer wall of the conical limiting rod 171, and the fourth ring 174 is rotatably connected by a bearing. On the outer wall of the third ring 173, a conical limiting rod 171 passes through the fourth ring 174. The outer wall of the fourth ring 174 is slidably connected to the inner wall of the circular movable cavity 9. One end of the spring 175 is located on one side of the fourth ring 174, and the other end of the spring 175 is located on the inner wall of the circular movable cavity 9. A rotating handle 176 is located at one end of the conical limiting rod 171. With the above configuration, an operator holds the rotating handle 176 to drive the conical limiting rod 171 to rotate. The conical limiting rod 171 drives the threaded part 172 to pass through the threaded part. The conical limiting rod 171 rotates out of the hole 20, causing the third ring 173 to rotate on the fourth ring 174. Then, the elastic potential energy of the spring 175 pushes the fourth ring 174 to move. The fourth ring 174 moves to the corresponding slot 2 through the third ring 173, which in turn moves the conical limiting rod 171 to limit the position of the second ring 14. Thus, the second ring 14 can limit the position of the gear 16 through the internal gear ring 15, preventing vibration from gradually rotating and loosening the threaded rod 19 from the threaded groove 8.

[0031] In this embodiment, specifically, a first rubber sealing ring 5 is embedded in the outer wall of the second connecting pipe 11. The outer wall of the first rubber sealing ring 5 is attached to the inner wall of the annular groove 4. The first rubber sealing ring 5 is provided to further enhance the sealing between the second connecting pipe 11 and the fixed pipe 12.

[0032] In this embodiment, specifically, a rubber sleeve 3 is provided on the outer wall of the rotating rod 170. By providing the rubber sleeve 3, the friction between the hand and the rotating rod 170 can be increased, and the comfort of operating the rotating rod 170 can be improved.

[0033] In this embodiment, specifically, the outer wall of the circular movable cavity 9 is uniformly provided with sliding grooves 21, and the outer wall of the fourth ring body 174 is uniformly provided with sliders 22. The outer wall of the sliders 22 is slidably connected to the inner wall of the sliding grooves 21. By the above arrangement, the sliders 22 can slide in the sliding grooves 21, which can both assist the fourth ring body 174 in moving and stabilize the position of the fourth ring body 174.

[0034] When this utility model is in operation: relevant personnel hold the second connecting tube 11 and drive the first ring body 13 to move, so that the second connecting tube 11 moves into the fixed tube 12. After that, the first ring body 13 drives several threaded rods 19 to move into the corresponding circular grooves 7. The threaded rods 19 and the circular grooves 7 are used to initially position the first ring body 13 and the second connecting tube 11.

[0035] Subsequently, relevant personnel hold the rotating rod 170 to drive the second ring body 14 to rotate. The second ring body 14 drives the internal gear ring 15 to rotate on several gears 16. The gears 16 drive the threaded rod 19 to rotate in the threaded groove 8, thereby causing the threaded rod 19 to drive the first ring body 13 to move. The first ring body 13 drives the second connecting pipe 11 to fit tightly with the second rubber sealing ring 18.

[0036] Subsequently, relevant personnel hold the rotating handle 176 to drive the conical limiting rod 171 to rotate. The conical limiting rod 171 drives the threaded part 172 to rotate out of the threaded through hole 20. The conical limiting rod 171 drives the third ring body 173 to rotate on the fourth ring body 174. Then, the elastic potential energy of the spring 175 pushes the fourth ring body 174 to move. The fourth ring body 174 drives the conical limiting rod 171 to move into the corresponding slot 2 through the third ring body 173, which is used to limit the position of the second ring body 14. Thus, the second ring body 14 can limit the position of the gear 16 through the internal gear ring 15, preventing vibration from gradually rotating and loosening the threaded rod 19 from the threaded groove 8.

[0037] When the second ring 14 needs to be rotated, the relevant personnel hold the rotating handle 176 to drive the conical limiting rod 171 to move in the opposite direction, so that the conical limiting rod 171 is released from the slot 2. The conical limiting rod 171 drives the threaded part 172 to move to the threaded through hole 20. After that, the relevant personnel hold the rotating handle 176 to drive the conical limiting rod 171 to rotate. The conical limiting rod 171 drives the threaded part 172 to rotate in the threaded through hole 20, which is used to fix the position of the conical limiting rod 171.

[0038] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An oil extraction connector, comprising a connector assembly (1), characterized in that: The connector assembly (1) includes a first connecting pipe (10), a second connecting pipe (11), a fixed pipe (12), a first ring body (13), a second ring body (14), an internal gear ring (15), several gears (16), several limiting rotation mechanisms (17), a second rubber sealing ring (18), and several threaded rods (19), wherein, The fixing tube (12) is disposed at one end of the first connecting tube (10), and an annular through groove (4) is provided at the end of the fixing tube (12) away from the first connecting tube (10); The inner wall of the annular through groove (4) is fitted with a second rubber sealing ring (18), and one end of the second connecting pipe (11) is in contact with the second rubber sealing ring (18). The outer wall of the second connecting pipe (11) is in contact with the inner wall of the fixing pipe (12) of the annular through groove (4). The first ring (13) is disposed on the outer wall of the second connecting pipe (11), and the outer wall of the first ring (13) is uniformly provided with a first circular through hole (6); The outer wall of the fixed tube (12) is uniformly provided with circular grooves (7), and the inner wall of the circular grooves (7) is provided with threaded grooves (8); The outer walls of several threaded rods (19) are rotatably connected to the inner wall of the corresponding first circular through hole (6) via bearings, and the several threaded rods (19) pass through the corresponding circular groove (7) and are threadedly connected to the inner wall of the corresponding threaded groove (8); A plurality of gears (16) are disposed at one end of the corresponding threaded rod (19), and the plurality of gears (16) mesh with the inner wall of the internal gear ring (15); The second ring body (14) is rotatably connected to the outer wall of the first ring body (13) via a bearing, and the internal toothed ring (15) is disposed on the inner wall of the second ring body (14); Several of the aforementioned limiting rotation mechanisms (17) are evenly arranged on the second ring body (14).

2. The oil production connector according to claim 1, characterized in that: The limiting rotation mechanism (17) includes a rotating rod (170), a conical limiting rod (171), a threaded portion (172), a third ring (173), a fourth ring (174), a spring (175), and a rotating handle (176), wherein, The rotating rod (170) passes through the second ring body (14), and the rotating rod (170) is fixedly connected to the second ring body (14); The rotating rod (170) has a circular movable cavity (9) inside, and the two ends of the rotating rod (170) are respectively provided with a threaded through hole (20) and a second circular through hole (23), and the threaded through hole (20) and the second circular through hole (23) are connected to the circular movable cavity (9). The tapered limiting rod (171) passes through the second circular through hole (23), the circular movable cavity (9) and the threaded through hole (20) in sequence, and the outer wall of the tapered limiting rod (171) is provided with a threaded part (172), and the outer wall of the threaded part (172) is threadedly connected to the inner wall of the threaded through hole (20). The outer wall of the fixed tube (12) is evenly provided with slots (2), and the outer wall of the conical limiting rod (171) is attached to the inner wall of the corresponding slot (2); The third ring (173) is disposed on the outer wall of the conical limiting rod (171), and the fourth ring (174) is rotatably connected to the outer wall of the third ring (173) through a bearing, and the conical limiting rod (171) passes through the fourth ring (174). The outer wall of the fourth ring (174) is slidably connected to the inner wall of the circular movable cavity (9), and one end of the spring (175) is disposed on one side of the fourth ring (174), and the other end of the spring (175) is disposed on the inner wall of the circular movable cavity (9). The rotating handle (176) is located at one end of the tapered limiting rod (171).

3. The oil production connector according to claim 1, characterized in that: The outer wall of the second connecting pipe (11) is fitted with a first rubber sealing ring (5), and the outer wall of the first rubber sealing ring (5) is attached to the inner wall of the annular through groove (4).

4. The oil production connector according to claim 2, characterized in that: The outer wall of the rotating rod (170) is provided with a rubber sleeve (3).

5. The oil production connector according to claim 2, characterized in that: The outer wall of the circular movable cavity (9) is uniformly provided with sliding grooves (21), and the outer wall of the fourth ring body (174) is uniformly provided with sliders (22), and the outer wall of the sliders (22) is slidably connected to the inner wall of the sliding grooves (21).

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