A large water hole drill pipe reducing joint

Abstract

The utility model discloses a big water eye drill rod reducing joint, including the joint body and the connecting pipe body, the outer thread side wall of joint body and connecting pipe body thread connection, the side wall upper end of joint body is connected with support mechanism, and the protection mechanism is installed on the support mechanism, aligns with the through hole and the limit screw hole, and the screw rod is passed through the through hole, makes the screw rod with limit screw hole thread connection to fix baffle, first connecting plate and second connecting plate on the circular groove, has realized the effect of convenient installation protection mechanism, and the connecting pipe body and joint body all are located in the inside of the cylinder surrounded by baffle, utilize the outside of baffle and stop the connecting pipe body and joint body to avoid the direct collision of connecting pipe body and joint body and external hard thing.

Description

TECHNICAL FIELD

[0001] The utility model relates to engineering equipment field especially a big water eye drill rod reducing joint. BACKGROUND

[0002] Drill pipe is a kind of steel pipe with thread at tail, is used to connect drilling rig surface equipment and located at the bottom of the well drilling equipment or bottom hole device.Drill pipe is used to transport drilling mud to drill bit, and is used to raise, lower or rotate bottom hole device with drill bit.Drill pipe must be able to withstand huge internal and external pressure, twist, bend and vibration.

[0003] Reducing joint can solve the problem of different caliber when metal pipeline is connected, has the effect of shock absorption and noise reduction, can save pipeline installation parts and cost.

[0004] Big water eye drill rod needs to be connected with different caliber, adopts reducing joint to connect, therefore, the connecting pipe connected with the external thread of reducing joint and part of reducing joint are exposed, in the process of moving or rotating drill pipe with reducing joint, the connecting pipe and reducing joint connecting part are easily impacted, leading to the damage of reducing joint and connecting pipe connecting part, and the connecting pipe and reducing joint connecting part are relatively weak compared with the overall structure of drill pipe and connecting rod, therefore, a big water eye drill rod reducing joint is needed to improve the protection of connecting pipe and reducing joint connecting part. SUMMARY

[0005] The utility model discloses a big water eye drill rod reducing joint that overcomes the defect that connecting pipe and reducing joint connecting part lack protection.

[0006] The technical scheme to realize the above object is as follows: a big water eye drill rod reducing joint, including joint body and connecting pipe body, the outer thread side wall of joint body is connected with connecting pipe body by thread, the side wall upper end of joint body is connected with supporting mechanism, the supporting mechanism is installed with protection mechanism.

[0007] Preferably, the supporting mechanism includes a mounting plate, a circular groove, a limiting screw hole, a placement groove, a through hole and a buffer pad, the side wall upper end of the joint body is connected with the bottom end of the mounting plate and the side wall of the mounting plate, the side wall of the mounting plate is provided with a circular groove, the top end of the mounting plate is provided with a placement groove, the bottom end of the placement groove is provided with a through hole, the buffer pad is inserted and connected on the placement groove, and the side wall of the circular groove is provided with a plurality of arrayed limiting screw holes.

[0008] Preferably, the through hole penetrates the bottom end of the mounting plate, and the side wall of the connecting pipe body penetrates the through hole and the circular groove.

[0009] Preferably, the buffer pad is made of rubber, the shape of the buffer pad is T-shaped, and the top end of the buffer pad is provided with a circular hole.

[0010] Preferably, the protection mechanism comprises a baffle, a threaded slice, a perforation, a first web, a plug rod, a second web and a slot, the side wall of the first web and the side wall of the second web are connected with the baffle, the side wall of the first web, the side wall of the second web and the side wall of the baffle are provided with the perforation, the two ends of the first web are connected with the plug rod, the two ends of the second web are provided with the slot, the side wall of the first web and the side wall of the second web are connected with the circular groove, the side wall of the plug rod is connected with the side wall of the slot, and the outer side wall of the baffle is connected with the threaded slice.

[0011] Preferably, the shape of the baffle, the first web and the second web is semicircular ring, and the diameter of the first web and the second web is the same.

[0012] Preferably, the shape of the perforation on the baffle is T-shaped, the perforation on one of the baffles is aligned with the perforation on the first web, and the perforation on the other baffle is aligned with the perforation on the second web.

[0013] Preferably, a screw rod is connected in the perforation, and the side wall of the screw rod is screw-connected with the limiting screw hole.

[0014] The utility model discloses beneficial effect is:

[0015] 1) the second web is inserted into the circular groove, then, the first web is inserted into the circular groove, at this time, the plug rod is inserted into the slot, so that the first web and the second web are connected into an integral circular ring, and two baffles are connected into a complete cylinder, at this time, the perforation and the limiting screw hole are aligned, the screw rod is passed through the perforation, so that the screw rod is screw-connected with the limiting screw hole, thereby fixing the baffle, the first web and the second web on the circular groove, realizing the effect that the protection mechanism is conveniently installed, and the connecting pipe body and the connector body are located on the inside of the cylinder surrounded by the baffle, and the baffle is used to block the outside of the connecting pipe body and the connector body, so that direct collision of the connecting pipe body and the connector body with external hard objects is avoided.

[0016] 2) the buffer pad is inserted into the placing groove, the bottom end of the connecting pipe body is in contact with the buffer pad, so that the impact generated by the up-and-down shaking of the connecting pipe body is reduced, and direct collision of the bottom of the connecting pipe body and the connector body is avoided. DRAWINGS

[0017] Figure 1 is the three-dimensional structure schematic diagram of the utility model;

[0018] Figure 2 is the baffle structure schematic diagram of one of the utility model;

[0019] Figure 3 is the baffle structure schematic diagram of another of the utility model;

[0020] Figure 4 is the first connecting plate structure schematic diagram of the utility model;

[0021] Figure 5 is the second connecting plate structure schematic diagram of the utility model;

[0022] Figure 6 is the cross section structure schematic diagram of the utility model;

[0023] Figure 7 is the mounting plate cross section structure schematic diagram of the utility model;

[0024] Figure 8 is the mounting plate and buffer pad explosion structure schematic diagram of the utility model;

[0025] Figure 9 is Figure 6 the enlarged structure schematic diagram of A place in middle.

[0026] Reference Signs:

[0027] 1, joint body;2, connecting pipe body;3, support mechanism;301, mounting plate;302, round groove;303, limiting screw hole;304, placing groove;305, through hole;306, buffer pad;4, protection mechanism;401, baffle;402, threaded slice;403, perforation;404, first connecting plate;405, insertion rod;406, second connecting plate;407, insertion slot;5, screw rod. DETAILED DESCRIPTION

[0028] The technical solutions of the utility model will be described clearly and completely below in combination with the drawings. In the description of the utility model, it needs to be explained that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying the importance of the opposite.

[0029] The utility model will be further described below in combination with the drawings.

[0030] Reference drawings Figures 1-9 A big water eye drill rod reducing joint, including joint body 1 and connecting pipe body 2, the outer thread side wall of joint body 1 and connecting pipe body 2 are connected by screwing, the upper end of the side wall of joint body 1 is connected with support mechanism 3, and protection mechanism 4 is installed on support mechanism 3.

[0031] With reference to the drawings Figures 6-9 The support mechanism 3 comprises a mounting plate 301, a circular groove 302, a limiting screw hole 303, a placing groove 304, a through hole 305 and a buffer pad 306, the side wall upper end of the joint body 1 is connected with the bottom end of the mounting plate 301 and the side wall of the mounting plate 301, the side wall of the mounting plate 301 is provided with the circular groove 302, the top end of the mounting plate 301 is provided with the placing groove 304, the bottom end of the placing groove 304 is provided with the through hole 305, the buffer pad 306 is inserted and connected on the placing groove 304, the side wall of the circular groove 302 is provided with a plurality of limiting screw holes 303 arranged in an array, the through hole 305 penetrates the bottom end of the mounting plate 301, the side wall of the connecting pipe body 2 penetrates the through hole 305 and the circular groove 302, the buffer pad 306 is made of rubber, the shape of the buffer pad 306 is T-shaped, and the top end of the buffer pad 306 is provided with a circular hole.

[0032] Before the connecting pipe body 2 is externally screwed with the joint body 1, the port surface of the joint body 1 penetrates the through hole 305 and the placing groove 304, the handle is used to fix and weld the mounting plate 301 to the side wall upper end of the joint body 1, so that the placing groove 304 is located below the external thread of the joint body 1, the buffer pad 306 is inserted into the placing groove 304, the bottom end of the connecting pipe body 2 is in contact with the buffer pad 306, so as to reduce the impact generated by the up-and-down shaking of the connecting pipe body 2 and avoid the direct collision between the bottom of the connecting pipe body 2 and the joint body 1.

[0033] With reference to the drawings Figures 2-9 The protection mechanism 4 comprises a baffle 401, a threaded slice 402, a perforation 403, a first connecting plate 404, a plug rod 405, a second connecting plate 406 and a plug slot 407, the side wall of the first connecting plate 404 and the side wall of the second connecting plate 406 are both connected with the baffle 401, the side wall of the first connecting plate 404, the side wall of the second connecting plate 406 and the side wall of the baffle 401 are all provided with the perforation 403, both ends of the first connecting plate 404 are connected with the plug rod 405, both ends of the second connecting plate 406 are provided with the plug slot 407, the side wall of the first connecting plate 404 and the side wall of the second connecting plate 406 are both inserted and connected with the circular groove 302, the side wall of the plug rod 405 is inserted and connected with the side wall of the plug slot 407, the outer side wall of the baffle 401 is connected with the threaded slice 402, the shapes of the baffle 401, the first connecting plate 404 and the second connecting plate 406 are all semicircular ring-shaped, the diameters of the first connecting plate 404 and the second connecting plate 406 are the same, the shape of the perforation 403 located on the baffle 401 is T-shaped, the perforation 403 located on one of the baffles 401 is aligned with the perforation 403 located on the first connecting plate 404, the perforation 403 located on the other baffle 401 is aligned with the perforation 403 located on the second connecting plate 406, the screw rod 5 is inserted and connected in the perforation 403, and the side wall of the screw rod 5 is screwed with the limiting screw hole 303.

[0034] The second connecting plate 406 is inserted into the circular groove 302, then the first connecting plate 404 is inserted into the circular groove 302, at this time, the insertion rod 405 is inserted into the insertion groove 407, so that the first connecting plate 404 and the second connecting plate 406 are connected into an integrated circular ring, and the two baffles 401 are connected into a complete cylinder, at this time, the perforation 403 and the limiting screw hole 303 are aligned, the screw rod 5 is inserted through the perforation 403, the screw rod 5 is screwed with the limiting screw hole 303, so that the baffle 401, the first connecting plate 404 and the second connecting plate 406 are fixed on the circular groove 302, the effect of conveniently installing the protection mechanism 4 is realized, and the connecting pipe body 2 and the joint body 1 are located on the inner side of the cylinder surrounded by the baffle 401, the baffle 401 is used to block the outer side of the connecting pipe body 2 and the joint body 1, so as to avoid the direct collision of the connecting pipe body 2 and the joint body 1 with external hard objects, and the threaded slice 402 is used to facilitate the baffle 401 to easily cut the soil when rotating, so as to facilitate the movement of the baffle 401.

[0035] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit the present application; although the present application is described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A large-gauge drill pipe reducing coupling comprising a coupling body (1) and a spool body (2), the outer threaded sidewall of the coupling body (1) and the spool body (2) being threadably connected, characterized in that, The side wall upper end of the joint body (1) is connected with a supporting mechanism (3), and the supporting mechanism (3) is provided with a protection mechanism (4).

2. A large gage drift reducer as defined in claim 1, wherein, The supporting mechanism (3) comprises a mounting plate (301), a circular groove (302), a limiting screw hole (303), a placing groove (304), a through hole (305) and a buffer pad (306), the side wall upper end of the joint body (1) is connected with the bottom end of the mounting plate (301) and the side wall of the mounting plate (301), the side wall of the mounting plate (301) is provided with the circular groove (302), the top end of the mounting plate (301) is provided with the placing groove (304), the bottom end of the placing groove (304) is provided with the through hole (305), the buffer pad (306) is inserted and connected on the placing groove (304), and the side wall of the circular groove (302) is provided with a plurality of arrayed limiting screw holes (303).

3. A large gage drift reducer as defined in claim 2, wherein, The through hole (305) penetrates the bottom end of the mounting plate (301), and the side wall of the connecting pipe body (2) penetrates the through hole (305) and the circular groove (302).

4. A large gage drift reducer as defined in claim 2 wherein, The buffer pad (306) is made of rubber, the shape of the buffer pad (306) is T-shaped, and the top end of the buffer pad (306) is provided with a circular hole.

5. A large gage drift reducer as defined in claim 2 wherein, The protection mechanism (4) comprises a baffle (401), a threaded slice (402), a perforation (403), a first connecting plate (404), a plug rod (405), a second connecting plate (406) and a plug groove (407), the side wall of the first connecting plate (404) and the side wall of the second connecting plate (406) are both connected with the baffle (401), the side wall of the first connecting plate (404), the side wall of the second connecting plate (406) and the side wall of the baffle (401) are all provided with the perforation (403), both ends of the first connecting plate (404) are connected with the plug rod (405), both ends of the second connecting plate (406) are provided with the plug groove (407), the side wall of the first connecting plate (404) and the side wall of the second connecting plate (406) are both insertedly connected with the circular groove (302), the side wall of the plug rod (405) is insertedly connected with the side wall of the plug groove (407), and the outer side wall of the baffle (401) is connected with the threaded slice (402).

6. A large gage drift reducer as defined in claim 5, wherein, The shapes of the baffle (401), the first connecting plate (404) and the second connecting plate (406) are all semicircular annular, and the diameters of the first connecting plate (404) and the second connecting plate (406) are the same.

7. A large gage drift reducer as defined in claim 5 wherein, The shape of the perforation (403) located on the baffle (401) is T-shaped, the perforation (403) located on one of the baffles (401) is aligned with the perforation (403) located on the first connecting plate (404), and the perforation (403) located on the other baffle (401) is aligned with the perforation (403) located on the second connecting plate (406).

8. A large gage drift reducer as defined in claim 5, wherein, The screw rod (5) is insertedly connected in the perforation (403), and the side wall of the screw rod (5) is screw-connected with the limiting screw hole (303).

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