Drill rod joint with taper thread structure
By setting a limiting groove and a sealing thread structure on the drill pipe joint, the problem of poor sealing caused by easy deformation of the female joint is solved, thus achieving the stability and sealing of the drill pipe connection and ensuring the power stability of the impactor.
Patent Information
- Application Number
- CN202520101121.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-01-16
AI Technical Summary
The tail end structure of some existing drill pipe joints is relatively weak, which can easily lead to expansion and deformation, resulting in poor sealing and air leakage, thus affecting the impact power of the impactor.
A drill pipe joint with a tapered thread structure was designed. By setting limiting grooves, reinforcing sleeves and sealing thread structures on the female and male joints, positioning and sealing are achieved, deformation is prevented and connection sealing is improved.
It effectively improves the structural bearing capacity of the female connector tail end, prevents deformation, ensures the sealing between drill pipes, and maintains the stable power of the impactor.
Smart Images
Figure CN223577872U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mechanical connecting component technical field, concretely is a drill rod joint with taper thread structure. BACKGROUND
[0002] Drill rod is used for connecting drilling rig surface equipment and drilling and grinding equipment at the bottom end of the well, and drill rod joint is usually connected by using taper thread structure.
[0003] The end structure of the female joint of part of the existing drill rod joint is weak in bearing capacity, and is prone to swelling deformation (into a horn mouth shape), which directly leads to poor sealing between the two drill rods and gas leakage after deformation, and seriously reduces the impact power of the impactor at the front end, therefore, the drill rod joint with taper thread structure is provided for the above problems. UTILITY MODEL CONTENT
[0004] The utility model discloses a drill rod joint with taper thread structure, which solves the problem of the weak bearing capacity of the end structure of the female joint of part of the existing drill rod joint, which is prone to swelling deformation (into a horn mouth shape), which directly leads to poor sealing between the two drill rods and gas leakage after deformation, and seriously reduces the impact power of the impactor at the front end.
[0005] To achieve the above object, the utility model provides the following technical scheme:
[0006] A drill rod joint with taper thread structure, comprising a female joint and a male joint, the inner side of the female joint is provided with a first limiting groove, the right side of the first limiting groove is provided with a tapered thread groove, the right side of the tapered thread groove is provided with a second limiting groove, the outer side of the female joint is fixedly connected with a first reinforcing sleeve, the outer side of the female joint is provided with a sealing thread protrusion, the outer side of the male joint is fixedly connected with a second reinforcing sleeve, the left side of the second reinforcing sleeve is fixedly connected with a sealing thread sleeve, the left side of the male joint is fixedly connected with a first limiting block, the left side of the first limiting block is fixedly connected with a tapered thread shaft, and the left side of the tapered thread shaft is fixedly connected with a second limiting block.
[0007] Preferably, the first limiting groove and the second limiting groove are both cylindrical grooves, the diameter of the first limiting groove is smaller than the small diameter of the tapered thread groove, and the diameter of the second limiting groove is larger than the large diameter of the tapered thread groove.
[0008] Preferably, the depth of the first limiting groove in the left-right direction is equal to the thickness of the second limiting block in the left-right direction, and the depth of the second limiting groove in the left-right direction is equal to the thickness of the first limiting block in the left-right direction.
[0009] Preferably, the depth of the tapered thread groove in the left-right direction is equal to the length of the tapered thread shaft in the left-right direction, and the tapered thread shaft and the tapered thread groove are threadedly connected.
[0010] Preferably, the thread direction of the sealing thread convex and the taper thread groove is consistent, the length of the sealing thread convex in the left-right direction is equal to the length of the sealing thread sleeve in the left-right direction, and the sealing thread sleeve and the sealing thread convex are threadedly connected.
[0011] Preferably, the sealing thread convex is located at the right side of the first reinforcing sleeve, the right side of the first reinforcing sleeve is attached to the sealing thread sleeve, and the right side of the female connector is attached to the male connector.
[0012] Preferably, the first limiting block and the second limiting block are both circular ring blocks, the outer diameter of the first limiting block is equal to the diameter of the second limiting groove, and the outer diameter of the second limiting block is equal to the diameter of the first limiting groove.
[0013] Compared with the prior art, the utility model has the beneficial effects that:
[0014] In the utility model, through the first limiting groove, the second limiting groove, the sealing thread convex, the sealing thread sleeve, the first limiting block and the second limiting block, the structure is positioned through the second limiting groove, the first limiting groove, the first limiting block and the second limiting block, prevents the relative swing of the female connector and the male connector, effectively improves the structure bearing capacity of the tail end of the female connector, prevents the deformation of the female connector, and simultaneously through the mutual cooperation of the sealing thread convex and the sealing thread sleeve, the first reinforcing sleeve and the sealing thread sleeve are closely attached, the connection sealing property between the female connector and the male connector is improved, the air leakage between the two drill rods due to the poor sealing is avoided, and the impact power stability of the impactor at the most front end is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the whole structure schematic view of the utility model;
[0016] Figure 2 It is the whole structure section view of the utility model;
[0017] Figure 3 It is the female connector structure section view of the utility model;
[0018] Figure 4 It is the male connector structure section view of the utility model.
[0019] In the drawing: 1, female connector; 2, first limiting groove; 3, taper thread groove; 4, second limiting groove; 5, first reinforcing sleeve; 6, sealing thread convex; 7, male connector; 8, second reinforcing sleeve; 9, sealing thread sleeve; 10, first limiting block; 11, taper thread shaft; 12, second limiting block. DETAILED DESCRIPTION
[0020] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.
[0021] In the description of the present application, it should be understood that the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the indicated device or element must have a specific orientation or be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the protection scope of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.
[0022] In addition, it should be noted that the use of "first", "second" and the like to limit parts is only for the convenience of distinguishing the corresponding parts, and if there is no further statement, the above words have no special meaning, therefore, it cannot be understood as a limitation on the protection scope of the present application.
[0023] Please refer to Figures 1-4 The present application provides a technical scheme:
[0024] A drill pipe joint with a tapered thread structure, comprising a female joint 1 and a male joint 7, the inner side of the female joint 1 is provided with a first limiting groove 2, the right side of the first limiting groove 2 is provided with a tapered thread groove 3, the right side of the tapered thread groove 3 is provided with a second limiting groove 4, the outer side of the female joint 1 is fixedly connected with a first reinforcing sleeve 5, the outer side of the female joint 1 is provided with a sealing thread protrusion 6, the outer side of the male joint 7 is fixedly connected with a second reinforcing sleeve 8, the left side of the second reinforcing sleeve 8 is fixedly connected with a sealing thread sleeve 9, the left side of the male joint 7 is fixedly connected with a first limiting block 10, the left side of the first limiting block 10 is fixedly connected with a tapered thread shaft 11, and the left side of the tapered thread shaft 11 is fixedly connected with a second limiting block 12.
[0025] The first limiting groove 2 and the second limiting groove 4 are both cylindrical grooves, the diameter of the first limiting groove 2 is smaller than the small diameter of the tapered thread groove 3, the diameter of the second limiting groove 4 is larger than the large diameter of the tapered thread groove 3, the first limiting groove 2 and the second limiting groove 4 can be positioned by cooperating with the first limiting block 10 and the second limiting block 12; the depth of the first limiting groove 2 in the left-right direction is equal to the thickness of the second limiting block 12 in the left-right direction, the depth of the second limiting groove 4 in the left-right direction is equal to the thickness of the first limiting block 10 in the left-right direction, the first limiting block 10 is completely located in the second limiting groove 4, and the second limiting block 12 is completely located in the first limiting groove 2; the depth of the tapered thread groove 3 in the left-right direction is equal to the length of the tapered thread shaft 11 in the left-right direction, the tapered thread shaft 11 is threadedly connected with the tapered thread groove 3, and the female connector 1 and the male connector 7 can be installed together through the tapered thread groove 3 and the tapered thread shaft 11; the thread direction of the sealing thread protrusion 6 is consistent with that of the tapered thread groove 3, the length of the sealing thread protrusion 6 in the left-right direction is equal to the length of the sealing thread sleeve 9 in the left-right direction, the sealing thread sleeve 9 is threadedly connected with the sealing thread protrusion 6, the sealing thread protrusion 6 is located on the right side of the first reinforcing sleeve 5, the right side of the first reinforcing sleeve 5 is attached to the sealing thread sleeve 9, the right side of the female connector 1 is attached to the male connector 7, the first reinforcing sleeve 5 and the sealing thread sleeve 9 can be tightly attached to each other through the cooperation of the sealing thread protrusion 6 and the sealing thread sleeve 9, and the connection sealing property between the female connector 1 and the male connector 7 is improved; the first limiting block 10 and the second limiting block 12 are both circular ring blocks, the outer diameter of the first limiting block 10 is equal to the diameter of the second limiting groove 4, and the outer diameter of the second limiting block 12 is equal to the diameter of the first limiting groove 2.
[0026] Work flow: the female joint 1 and the first reinforcing sleeve 5 of the structure are integrally formed, the male joint 7, the second reinforcing sleeve 8, the sealing threaded sleeve 9, the first limiting block 10, the tapered threaded shaft 11 and the second limiting block 12 of the structure are integrally formed, which are all prior art; check whether the female joint 1 and the male joint 7 are intact before use, assemble the female joint 1 and the male joint 7, make the thread direction of the sealing threaded protrusion 6 and the tapered threaded groove 3 consistent, make the sealing threaded sleeve 9 and the sealing threaded protrusion 6 threadedly connected, make the tapered threaded shaft 11 and the tapered threaded groove 3 threadedly connected, at this time, the first limiting block 10 is completely located in the second limiting groove 4, the second limiting block 12 is completely located in the first limiting groove 2, the right side of the female joint 1 and the male joint 7 are attached, the right side of the first reinforcing sleeve 5 and the sealing threaded sleeve 9 fixed by the second reinforcing sleeve 8 are attached, and the assembly is completed, the structure is positioned through the second limiting groove 4, the first limiting groove 2, the first limiting block 10 and the second limiting block 12, to prevent the female joint 1 and the male joint 7 from swinging relative to each other, effectively improve the structure bearing capacity of the tail end of the female joint 1, prevent the female joint 1 from deforming, and at the same time, the first reinforcing sleeve 5 and the sealing threaded sleeve 9 are tightly attached through the cooperation of the sealing threaded protrusion 6 and the sealing threaded sleeve 9, the connection sealing property between the female joint 1 and the male joint 7 is improved, the air leakage between the two drill rods due to poor sealing can be avoided, and the impact power of the impactor at the most front end is ensured to be stable.
[0027] The contents not described in detail in the specification belong to the prior art known by the person skilled in the art. The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, and the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the mechanical parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.
[0028] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A drill pipe joint having a tapered thread structure comprising a box (1) and a pin (7), characterized in that: The inner side of the female joint (1) is provided with a first limiting groove (2), the right side of the first limiting groove (2) is provided with a tapered thread groove (3), the right side of the tapered thread groove (3) is provided with a second limiting groove (4), the outer side of the female joint (1) is fixedly connected with a first reinforcing sleeve (5), the outer side of the female joint (1) is provided with a sealing thread convex (6), the outer side of the male joint (7) is fixedly connected with a second reinforcing sleeve (8), the left side of the second reinforcing sleeve (8) is fixedly connected with a sealing thread sleeve (9), the left side of the male joint (7) is fixedly connected with a first limiting block (10), the left side of the first limiting block (10) is fixedly connected with a tapered thread shaft (11), and the left side of the tapered thread shaft (11) is fixedly connected with a second limiting block (12).
2. A drill pipe joint having a tapered thread construction as defined in claim 1, characterized in that: The first limiting groove (2) and the second limiting groove (4) are both cylindrical grooves, the diameter of the first limiting groove (2) is smaller than the small diameter of the tapered thread groove (3), and the diameter of the second limiting groove (4) is greater than the large diameter of the tapered thread groove (3).
3. The drill pipe joint having a tapered thread structure of claim 1, wherein: The depth of the first limiting groove (2) in the left-right direction is equal to the thickness of the second limiting block (12) in the left-right direction, and the depth of the second limiting groove (4) in the left-right direction is equal to the thickness of the first limiting block (10) in the left-right direction.
4. The drill pipe joint having a tapered thread structure of claim 1, wherein: The depth of the tapered thread groove (3) in the left-right direction is equal to the length of the tapered thread shaft (11) in the left-right direction, and the tapered thread shaft (11) and the tapered thread groove (3) are threadedly connected.
5. The drill pipe joint having a tapered thread structure of claim 1, wherein: The thread direction of the sealing thread convex (6) and the tapered thread groove (3) is consistent, the length of the sealing thread convex (6) in the left-right direction is equal to the length of the sealing thread sleeve (9) in the left-right direction, and the sealing thread sleeve (9) and the sealing thread convex (6) are threadedly connected.
6. The drill pipe joint having a tapered thread structure of claim 1, wherein: The sealing thread convex (6) is located on the right side of the first reinforcing sleeve (5), the right side of the first reinforcing sleeve (5) is attached to the sealing thread sleeve (9), and the right side of the female joint (1) is attached to the male joint (7).
7. The drill pipe joint having a tapered thread structure of claim 1, wherein: The first limiting block (10) and the second limiting block (12) are both circular ring blocks, the outer diameter of the first limiting block (10) is equal to the diameter of the second limiting groove (4), and the outer diameter of the second limiting block (12) is equal to the diameter of the first limiting groove (2).