Tubing head four-way joint convenient to mount, dismount and control

Abstract

The invention relates to the field of tubing head control, in particular to a tubing head four-way joint convenient to mount, demount and control. Comprising an anti-moving block fixed to the inner wall, close to the end, of a connecting pipe, a limiting block movably arranged on the outer surface of the connecting pipe, a positioning rod fixed to the end, close to an oil pipe head body, of the limiting block, a first spring arranged on the outer surface of the positioning rod in a sleeving mode, four sets of transmission lantern rings movably arranged on the outer surface of a guide rod in a sleeving mode, and tooth grooves fixed to the inner walls of the transmission lantern rings. The device has the beneficial effects that the positioning rod is opposite to the powerful magnet, and the powerful magnet is not shielded by the shielding plate at the moment, so that the powerful magnet can support the positioning rod to move towards the connecting pipe, the limiting block is clamped with the limiting groove, and the connecting pipe cannot rotate on the outer surface of the pipe head under the limiting of the limiting block and the limiting groove at the moment; and under the limitation of the anti-moving block and the clamping block, the connecting pipe cannot move, the installation of the tubing head main body and the connecting pipe is achieved, and the installation mode can achieve installation without the help of tools.

Description

Technical Field

[0001] The invention relates to the field of oil pipe head control, in particular to an oil pipe head cross-piece which is easy to install and disassemble and control. Background Art

[0002] The tubing head is a device component that connects the uppermost casing head and the Christmas tree. It is used to hang the tubing and seal the annular space between the tubing and the casing.

[0003] In the prior art, a Chinese invention with publication number CN115680546B discloses a tubing head spool with a mud and drilling fluid penetration-proof structure, which mainly has a locking screw structure that shields the components of the tubing head spool assembly structure through the anti-penetration structure.

[0004] However, currently, the oil pipe head connection is installed and disassembled through the flange and the bolt assembly. During installation and disassembly, it is necessary to use the tool knob bolt assembly, and the flange connection is generally provided with multiple sets of bolt assemblies for locking. This process is time-consuming and labor-intensive, and the efficiency of installation and disassembly is low. Therefore, the present invention proposes an oil pipe head spool that is easy to install and disassemble to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a tubing head spool that is easy to install and disassemble, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tubing head cross that is easy to install and disassemble, a tubing head main body, four groups of tube heads are fixed on the outer surface of the tubing head main body, a connecting pipe is movably sleeved at the end of the tube head, an anti-movement block is fixed to the inner wall of the end of the connecting pipe, a limit block is movably provided on the outer surface of the connecting pipe, a positioning rod is fixed to the limit block near the end of the tubing head main body, and a first spring is sleeved on the outer surface of the positioning rod;

[0007] A guide rod, a transmission ring is movably sleeved on the outer surface of the guide rod, the transmission ring is provided with four groups, the four groups of transmission rings are respectively fixed with a first baffle, a second baffle, a third baffle and a fourth baffle, and a tooth groove is fixed on the inner wall of the transmission ring.

[0008] Preferably, the tube head is connected to the inside of the tubing head body, a second spring is provided on the bottom surface of the inner wall of the tubing head body, an annular groove is provided at the end of the inner wall of the tubing head body, and a through hole is provided on the inner wall of the connection between the tubing head body and the tube head.

[0009] Preferably, the through hole penetrates the tubing head body, the positioning rod corresponds to and is clamped with the through hole to be movably connected, and a strong magnet is fixed to the inner wall of the tubing head body, and the strong magnet corresponds to the through hole.

[0010] Preferably, a support block is fixed on the outer surface of the pipe head, the positioning rod movably passes through the support block, a baffle is fixed on the outer surface of the positioning rod, the baffle is located on the side of the support block close to the oil pipe head body, and the first spring is located between the baffle and the support block.

[0011] Preferably, a clamping block is fixed on the outer surface of the pipe head near the port, the clamping block corresponds to the anti-movement block and is clamped to be movably connected, and a limiting groove is provided on the outer surface of the connecting pipe, and the limiting block corresponds to the limiting groove.

[0012] Preferably, the first baffle, the second baffle, the third baffle and the fourth baffle are of the same size, positioning holes are opened on the surfaces of the four baffles, and they are movably clamped on the inner wall of the oil pipe head body. The positioning holes do not penetrate, and the positioning rods correspond to the positioning holes and are clamped to form a movably connected connection.

[0013] Preferably, a hand wheel is fixed to the upper end of the guide rod, and a first tooth block, a second tooth block, a third tooth block and a fourth tooth block are fixed to the outer surface of the guide rod, and the four are staggeredly distributed.

[0014] Preferably, an annular groove is formed on the inner wall of the transmission sleeve close to the port, an annular block is movably provided at the connection between the transmission sleeves, and an annular block is movably provided at the connection between the transmission sleeve and the inner wall of the tubing head body.

[0015] Preferably, the annular block corresponds to and is clamped in the annular groove to be movably connected, and the second spring is located at the lower end of the guide rod.

[0016] Preferably, the guide rod is located inside the tubing head body, the guide rod is movably connected to the tubing head body, the hand wheel is located outside the tubing head body, and the first gear block, the second gear block, the third gear block, and the fourth gear block correspond to the tooth groove.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] When installing the connecting pipe on the oil pipe head body, first make the pipe head correspond to the connecting pipe, and lock the clamping block with the anti-movement block, then press the guide rod to move by the hand wheel, so that a group of tooth blocks on the surface of the guide rod correspond to the tooth grooves in the transmission sleeve ring corresponding to a group of pipe heads where the connecting pipe needs to be installed, and lock them. At this time, a limit is formed between the guide rod and the transmission sleeve, and the corresponding positioning rod is pulled to move at the same time, so that the positioning rod is no longer locked with the positioning hole. At this time, the rotating guide rod can drive the corresponding transmission sleeve to rotate through the tooth groove, and the rotation of the transmission sleeve will drive the corresponding shield plate to rotate around The main body of the tubing head rotates axially. When the shielding plate no longer blocks the corresponding tube head, the positioning rod is relative to the strong magnet. The strong magnet is no longer blocked by the shielding plate at this time. Therefore, the strong magnet will hold the positioning rod to move toward the connecting tube, so that the limit block and the limit groove are locked. At this time, under the limitation of the limit block and the limit groove, the connecting tube cannot rotate on the outer surface of the tube head, and under the limitation of the anti-movement block and the locking block, the connecting tube cannot move, thereby realizing the installation of the main body of the tubing head and the connecting tube. This installation method can be installed without the aid of tools, and is convenient. The same applies to disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a three-dimensional schematic diagram of the structure of the connecting pipe assembly of the present invention;

[0021] Figure 3 It is an exploded stereoscopic schematic diagram of the pipe head assembly structure of the present invention;

[0022] Figure 4 It is an exploded stereoscopic schematic diagram of the structure of the tubing head assembly of the present invention;

[0023] Figure 5 It is a cutaway perspective schematic diagram of the main structure of the tubing head of the present invention;

[0024] Figure 6 It is an exploded stereoscopic schematic diagram of the shielding assembly structure of the present invention;

[0025] Figure 7 It is a cutaway perspective schematic diagram of the shield assembly structure of the present invention;

[0026] Figure 8 It is a three-dimensional schematic diagram of the annular block structure of the present invention;

[0027] Fig. 9 It is a three-dimensional schematic diagram of the guide rod structure of the present invention;

[0028] Fig.10 It is a cutaway perspective schematic diagram of the transmission assembly structure of the present invention.

[0029] In the figure: 1. tubing head body; 2. hand wheel; 3. pipe head; 4. connecting pipe; 5. limiting groove; 6. anti-movement block; 7. supporting block; 8. first spring; 9. positioning rod; 10. baffle; 11. limiting block; 12. clamping block; 13. through hole; 14. positioning hole; 15. first shield plate; 16. second spring; 17. strong magnet; 18. annular groove; 19. guide rod; 20. annular block; 21. transmission collar; 22. second shield plate; 23. third shield plate; 24. fourth shield plate; 25. tooth groove; 26. first tooth block; 27. second tooth block; 28. third tooth block; 29. ​​fourth tooth block. DETAILED DESCRIPTION

[0030] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit 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.

[0031] See also Figures 1 to 10 The present invention provides a technical solution: a tubing head cross that is easy to install and disassemble.

[0032] Embodiment 1, a tubing head cross-connect which is easy to install and disassemble, comprises: four groups of tubing heads 3 are fixed on the outer surface of the tubing head body 1, connecting tubes 4 are movably sleeved at the ends of the tube heads 3, anti-movement blocks 6 are fixed to the inner walls of the ends of the connecting tubes 4, and the connecting tubes 4 cannot move under the restriction of the anti-movement blocks 6 and the clamping blocks 12, and the connecting tubes 4 cannot move, and limit blocks 11 are movably provided on the outer surface of the connecting tubes 4, and under the restriction of the limit blocks 11 and the limit grooves 5, the connecting tubes 4 cannot rotate on the outer surface of the tubing head 3, and the limit blocks 11 are fixed to the ends of the tubing head body 1 with positioning rods 9, and the outer surface of the positioning rods 9 is sleeved with a first spring 8, and the shield plate will hinder the connection between the strong magnet 17 and the positioning rod 9 after blocking, and at this time, under the elasticity of the first spring 8, the first spring 8 will support the positioning rod to be clamped into the positioning hole 14, thereby achieving the stability of the tubing head 3 corresponding to the shield plate.

[0033] A transmission collar 21 is movably sleeved on the outer surface of the guide rod 19. The transmission collar 21 is provided with four groups. The four groups of transmission collars 21 are respectively fixed with a first baffle 15, a second baffle 22, a third baffle 23 and a fourth baffle 24. This installation and disassembly structure has baffles corresponding to each group of pipe heads 3, which can adjust the oil flow direction of the oil pipe head body 1. A tooth groove 25 is fixed on the inner wall of the transmission collar 21. A group of tooth blocks on the surface of the guide rod 19 corresponds to and is clamped with the tooth groove 25 in the transmission collar 21 corresponding to a group of pipe heads 3 on which the connecting pipe 4 needs to be installed. At this time, a limit is formed between the guide rod 19 and the transmission sleeve 21.

[0034] On the basis of the first embodiment, in order to realize the convenience of installation and disassembly of the tubing head body 1, the tube head 3 is connected with the inside of the tubing head body 1, and a second spring 16 is provided on the bottom surface of the inner wall of the tubing head body 1. When the guide rod 19 does not need to be rotated, the second spring 19 will support the guide rod 19 so that all the tooth blocks will not correspond to the tooth grooves 25. An annular groove 18 is provided at the end of the inner wall of the tubing head body 1, and a through hole 13 is provided on the inner wall of the connection between the tubing head body 1 and the tube head 3.

[0035] The through hole 13 penetrates the tubing head body 1, and the positioning rod 9 corresponds to and is clamped with the through hole 13, and is movably connected. The positioning rod 9 will be clamped with the through hole 13 no matter how it moves. A strong magnet 17 is fixed to the inner wall of the tubing head body 1, and the strong magnet 17 corresponds to the through hole 13. The strong magnet 17 will support the positioning rod 9 to move toward the connecting pipe 4, so that the limit block 11 is clamped with the limit groove 5. At this time, under the limit of the limit block 11 and the limit groove 5, the connecting pipe 4 cannot rotate on the outer surface of the pipe head 3.

[0036] A support block 7 is fixed on the outer surface of the pipe head 3, and a positioning rod 9 is movably inserted through the support block 7. The support block 7 supports and positions the positioning rod 9 to prevent the positioning rod 9 from shifting when moving. A baffle 10 is fixed on the outer surface of the positioning rod 9, and the baffle 10 is located on the side of the support block 7 close to the oil pipe head body 1. The first spring 8 is located between the baffle 10 and the support block 7. After the baffle is blocked, it will hinder the connection between the strong magnet 17 and the positioning rod 9. At this time, under the elasticity of the first spring 8, the first spring 8 will support the positioning rod through the baffle 10 and be clamped into the positioning hole 14, thereby achieving the stability of the pipe head 3 corresponding to the cover of the baffle.

[0037] A clamping block 12 is fixed on the outer surface of the pipe head 3 near the port, and the clamping block 12 corresponds to and is clamped with the anti-movement block 6 to be movably connected. Under the restriction of the anti-movement block 6 and the clamping block 12, the connecting pipe 4 cannot move. A limiting groove 5 is provided on the outer surface of the connecting pipe 4, and the limiting block 11 corresponds to the limiting groove 5. Under the restriction of the limiting block 11 and the limiting groove 5, the connecting pipe 4 cannot rotate on the outer surface of the pipe head 3.

[0038] The first baffle 15, the second baffle 22, the third baffle 23 and the fourth baffle 24 are of the same size, and a positioning hole 14 is opened on the surface of the four baffles, and they are movably clamped on the inner wall of the oil pipe head body 1, and the positioning hole 14 does not penetrate. The positioning rod 9 corresponds to the positioning hole 14 and is clamped, and is movably connected. The positioning rod is clamped into the positioning hole 14, so that the baffles cannot rotate on the inner wall of the oil pipe head body 1, thereby achieving the stability of the pipe head 3 corresponding to the baffle cover.

[0039] A hand wheel 2 is fixed to the upper end of the guide rod 19, and a first tooth block 26, a second tooth block 27, a third tooth block 28 and a fourth tooth block 29 are fixed to the outer surface of the guide rod 19. The four groups of tooth blocks are staggered. The distance the guide rod 19 is moved can be used to determine which group of tooth blocks will be stuck with the tooth groove 25.

[0040] An annular groove 18 is formed on the inner wall of the transmission collar 21 near the port, an annular block 20 is movably provided at the connection between the transmission collars 21, and an annular block 20 is movably provided at the connection between the transmission collars 21 and the inner wall of the tubing head body 1, so that the four groups of transmission collars 21 are movably connected to the tubing head body 1.

[0041] The annular block 20 corresponds to and is clamped in the annular groove 18 and is movably connected. The second spring 16 is located at the lower end of the guide rod 19. When the guide rod 19 does not need to be rotated, the second spring 19 will support the guide rod 19 so that all the tooth blocks will not correspond to the tooth grooves 25.

[0042] The guide rod 19 is located inside the tubing head body 1 and is movably connected to the tubing head body 1 . The hand wheel 2 is located outside the tubing head body 1 . The first tooth block 26 , the second tooth block 27 , the third tooth block 28 , and the fourth tooth block 29 correspond to the tooth groove 25 .

[0043] In actual use, when the connecting pipe 4 is installed on the tubing head main body 1, the pipe head 3 is first aligned with the connecting pipe 4, and the blocking block 12 is locked with the anti-movement block 6, and then the guide rod 19 is pressed by the hand wheel 2 to move, so that a group of tooth blocks on the surface of the guide rod 19 correspond to and are locked with the tooth grooves 25 in the transmission sleeve 21 corresponding to a group of pipe heads 3 on which the connecting pipe 4 needs to be installed. At this time, a limit is formed between the guide rod 19 and the transmission sleeve 21, and the corresponding positioning rod 9 is pulled to move, so that the positioning rod 9 is no longer locked with the positioning hole 14. At this time, the rotating guide rod 19 can drive the corresponding transmission sleeve 21 to rotate through the tooth groove 25, and the rotation of the transmission sleeve 21 will drive the corresponding shield plate 15 to rotate around the axis of the tubing head main body 1. When the shield plate 15 no longer blocks the corresponding pipe head 3, since the positioning rod 9 is aligned with the strong magnet 17, the strong magnet 17 is no longer blocked by the shield plate 15 at this time, so the strong magnet 17 will hold The positioning rod 9 moves toward the connecting pipe 4, so that the limiting block 11 is locked with the limiting groove 5. At this time, under the limitation of the limiting block 11 and the limiting groove 5, the connecting pipe 4 cannot rotate on the outer surface of the pipe head 3, and under the limitation of the anti-movement block 6 and the locking block 12, the connecting pipe 4 cannot move, thereby realizing the installation of the oil pipe head main body 1 and the connecting pipe 4. This installation method can be installed without the aid of tools, which is convenient, and the disassembly is the same; and this installation and disassembly structure has a shield plate corresponding to each group of pipe heads 3, which can adjust the oil flow direction of the oil pipe head main body 1, and the pipe head 3 that does not need oil to flow in can be blocked by the shield plate, and the shield plate will hinder the connection between the strong magnet 17 and the positioning rod 9 after blocking. At this time, under the elasticity of the first spring 8, the first spring 8 will support the positioning rod to be locked into the positioning hole 14, thereby realizing the stability of the pipe head 3 corresponding to the shield plate, thereby realizing the adjustment of the oil flow direction inside the oil pipe head main body 1.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tubing head spool that is easy to install and disassemble, characterized in that: include: A tubing head body (1), wherein four groups of tubing heads (3) are fixed on the outer surface of the tubing head body (1), a connecting tube (4) is movably sleeved on the end of the tubing head (3), an anti-movement block (6) is fixed on the inner wall of the end of the connecting tube (4), a limit block (11) is movably provided on the outer surface of the connecting tube (4), a positioning rod (9) is fixed on the limit block (11) near the end of the tubing head body (1), and a first spring (8) is sleeved on the outer surface of the positioning rod (9); A guide rod (19), wherein a transmission collar (21) is movably sleeved on the outer surface of the guide rod (19), wherein the transmission collar (21) is provided with four groups, wherein the four groups of the transmission collar (21) are respectively fixed with a first baffle (15), a second baffle (22), a third baffle (23) and a fourth baffle (24), and a tooth groove (25) is fixed on the inner wall of the transmission collar (21).

2. The tubing head spool that is easy to install and disassemble according to claim 1, characterized in that: The pipe head (3) is connected to the inside of the tubing head body (1); a second spring (16) is provided on the bottom surface of the inner wall of the tubing head body (1); an annular groove (18) is provided at the end of the inner wall of the tubing head body (1); and a through hole (13) is provided on the inner wall of the connection between the tubing head body (1) and the pipe head (3).

3. The tubing head spool that is easy to install and disassemble according to claim 2, characterized in that: The through hole (13) penetrates the tubing head body (1), the positioning rod (9) corresponds to the through hole (13) and is clamped to be movably connected, and a strong magnet (17) is fixed on the inner wall of the tubing head body (1), and the strong magnet (17) corresponds to the through hole (13).

4. The tubing head spool that is easy to install and disassemble according to claim 3, characterized in that: A support block (7) is fixed on the outer surface of the pipe head (3); the positioning rod (9) movably penetrates the support block (7); a baffle (10) is fixed on the outer surface of the positioning rod (9); the baffle (10) is located on the side of the support block (7) close to the oil pipe head body (1); and the first spring (8) is located between the baffle (10) and the support block (7).

5. The tubing head spool that is easy to install and disassemble according to claim 4, characterized in that: A clamping block (12) is fixed on the outer surface of the pipe head (3) near the port, and the clamping block (12) corresponds to and is clamped with the anti-movement block (6) to be movably connected. A limiting groove (5) is provided on the outer surface of the connecting pipe (4), and the limiting block (11) corresponds to the limiting groove (5).

6. The tubing head spool that is easy to install and disassemble according to claim 5, characterized in that: The first baffle (15), the second baffle (22), the third baffle (23) and the fourth baffle (24) are of the same size, and positioning holes (14) are provided on the surfaces of the four baffles, and are movably clamped on the inner wall of the tubing head body (1), the positioning holes (14) do not penetrate, and the positioning rod (9) corresponds to the positioning holes (14) and is clamped, so as to be movably connected.

7. The tubing head spool that is easy to install and disassemble according to claim 6, characterized in that: A hand wheel (2) is fixed on the upper end of the guide rod (19), and a first tooth block (26), a second tooth block (27), a third tooth block (28) and a fourth tooth block (29) are fixed on the outer surface of the guide rod (19), and the four tooth blocks are staggered.

8. The tubing head spool that is easy to install and disassemble according to claim 7, characterized in that: The transmission sleeve (21) is provided with an annular groove (18) on the inner wall of the port, an annular block (20) is movably provided at the connection between the transmission sleeves (21), and an annular block (20) is movably provided at the connection between the transmission sleeve (21) and the inner wall of the tubing head body (1).

9. The tubing head spool that is easy to install and disassemble according to claim 8, characterized in that: The annular block (20) corresponds to and is locked with the annular groove (18) to be movably connected, and the second spring (16) is located at the lower end of the guide rod (19).

10. The tubing head spool that is easy to install and disassemble according to claim 9, characterized in that: The guide rod (19) is located inside the tubing head body (1), and the guide rod (19) is movably connected to the tubing head body (1). The hand wheel (2) is located outside the tubing head body (1), and the first tooth block (26), the second tooth block (27), the third tooth block (28), and the fourth tooth block (29) correspond to the tooth groove (25).

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