Safety joint for well drilling
By introducing a connection mechanism and clamping mechanism into the oil drilling safety joints, and using threaded connections and clamping mechanisms, the problem of insufficient stability of the existing oil drilling safety joints is solved, and a safer and more stable joint connection is achieved.
Patent Information
- Application Number
- CN202421182231.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-28
AI Technical Summary
The connection stability and separation stability of existing oil drilling safety joints are insufficient and often fail.
The drilling safety joint design is adopted including a connecting mechanism and a clamping mechanism. The clamping limits of the first mounting plate and the second mounting plate are achieved through threaded connections and multiple components such as bolts, springs, U-shaped plates, clamping plates and rubber pads. bit operation to enhance the security and stability of the connection.
By rotating the connector and pressing the bolts, the gradual approach and clamping of the mounting plate is achieved, which enhances the safety and stability of the connection and avoids failures.
Smart Images
Figure CN222315085U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of joints, in particular to a safety joint for drilling. Background Art
[0002] The oil drilling safety joint is a joint that is connected to the bottom of the drill string when the oil drill is drilling into special formations or special operations underground to protect the upper drill pipe. The oil drilling safety joint is connected by a thick square thread, and is the most easily disassembled link in the entire drill string. The existing oil drilling safety joint design is relatively traditional. The male and female joints are connected by wide sawtooth threads, and the connection is not stable enough. The connection and separation are not stable enough, and failures often occur during the working process. Therefore, a drilling safety joint is needed to improve the above problems. Utility Model Content
[0003] 1. Technical issues to be resolved
[0004] In view of the deficiencies in the prior art, the utility model provides a method of clamping and limiting the first mounting plate and the second mounting plate through the cooperation of a connecting mechanism and two clamping mechanisms, thereby making the first mounting plate and the second mounting plate safer and more stable, thereby realizing a safety joint for drilling that connects the first connecting head and the second connecting head.
[0005] (II) Technical solution
[0006] To achieve the above object, the utility model provides the following technical solution: a safety joint for drilling, comprising a first connector and a second connector, wherein the first connector is provided with a threaded hole, the second connector is provided with an external thread, and the first connector and the second connector are connected by threads;
[0007] The first connecting head and the second connecting head are fixedly operated by a connecting mechanism, the connecting mechanism includes a plurality of first bolts, a first mounting plate is fixedly mounted on the first connecting head, a second mounting plate is fixedly mounted on the second connecting head, a plurality of first through holes and a second through holes are provided on the first mounting plate and the second mounting plate, each first through hole is connected to a corresponding second through hole, a plurality of first springs are fixedly mounted on an outer side wall of the second mounting plate, one end of the plurality of first springs away from the second mounting plate is fixedly connected to the corresponding first bolt, and one end of the first bolt passes through the first spring and is located in the corresponding second through hole;
[0008] The first mounting plate and the second mounting plate are clamped and fixed by two clamping mechanisms.
[0009] Preferably, one of the clamping mechanisms includes a first U-shaped plate and two clamping plates, two telescopic columns are symmetrically fixedly installed on the two clamping plates, one end of each telescopic column away from the clamping plate is fixedly connected to the first U-shaped plate, each telescopic column is provided with a second spring, the two ends of each second spring are respectively fixedly connected to the corresponding clamping plate and the first U-shaped plate, a second U-shaped plate is fixedly installed on the first U-shaped plate, two second bolts are screwed on the second U-shaped plate, threaded holes are provided on the first mounting plate and the second mounting plate, and the two second bolts are respectively screwed to the two threaded holes.
[0010] Furthermore, rubber pads are provided on the inner side walls of the two clamping plates.
[0011] Furthermore, auxiliary plates are fixedly installed on the two clamping plates, two movable grooves are symmetrically arranged on the first U-shaped plate, and the two auxiliary plates are slidably connected to the two movable grooves respectively.
[0012] Based on the above solution, each of the first bolts is provided with anti-slip grooves.
[0013] (III) Beneficial effects
[0014] Compared with the prior art, the utility model provides a safety joint for drilling, which has the following beneficial effects:
[0015] The safety joint for drilling is connected by rotating the first connecting head and the second connecting head. When the first connecting head and the second connecting head are connected, the first mounting plate and the second mounting plate are gradually approached. The first bolts are pressed in sequence to pass through the first mounting plate, thereby compressing the first spring. The first mounting plate and the second mounting plate are connected by multiple first bolts. The first mounting plate and the second mounting plate are clamped and limited by two clamping mechanisms, thereby making the first mounting plate and the second mounting plate safer and more stable, thereby realizing the connection operation of the first connecting head and the second connecting head. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;
[0018] Figure 3 This is a schematic diagram of the structure of the first mounting plate and the second mounting plate of the utility model;
[0019] Figure 4 It is a structural schematic diagram of the first U-shaped plate of the utility model.
[0020] Markings in the accompanying drawings: 1. first connecting head; 2. second connecting head; 3. first mounting plate; 4. second mounting plate; 5. first spring; 6. first bolt; 7. first U-shaped plate; 8. clamping plate; 9. second spring; 10. second U-shaped plate; 11. second bolt; 12. rubber pad; 13. auxiliary plate; 14. anti-slip pattern. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] Example
[0023] See also Figure 1 A safety joint for drilling includes a first connector 1 and a second connector 2. The first connector 1 is provided with a threaded hole, the second connector 2 is provided with an external thread, and the first connector 1 and the second connector 2 are connected by threads.
[0024] See also Figure 1-Figure 3 The first connecting head 1 and the second connecting head 2 are stabilized by a connecting mechanism, and the connecting mechanism includes a plurality of first bolts 6. A first mounting plate 3 is fixedly mounted on the first connecting head 1, and a second mounting plate 4 is fixedly mounted on the second connecting head 2. The connecting operation is performed by rotating the first connecting head 1 and the second connecting head 2. When the first connecting head 1 and the second connecting head 2 are connected, the first mounting plate 3 and the second mounting plate 4 are gradually approached. A plurality of first through holes and second through holes are provided on the first mounting plate 3 and the second mounting plate 4, and each first through hole is connected to a corresponding second through hole. A plurality of first springs 5 are fixedly mounted on the outer wall of the second mounting plate 4. One end of the plurality of first springs 5 away from the second mounting plate 4 is fixedly connected to the corresponding first bolt 6. One end of the first bolt 6 passes through the first spring 5 and is located in the corresponding second through hole. The first bolt 6 is pressed in sequence to make the first bolt 6 pass through the first mounting plate 3, so that the first spring 5 is compressed, and the first mounting plate 3 and the second mounting plate 4 are connected by the plurality of first bolts 6.
[0025] See also Figure 1-Figure 4The first mounting plate 3 and the second mounting plate 4 are clamped and fixed by two clamping mechanisms, and the first mounting plate 3 and the second mounting plate 4 are clamped and limited by the two clamping mechanisms, so that the first mounting plate 3 and the second mounting plate 4 are safer and more stable, thereby realizing the connection operation of the first connecting head 1 and the second connecting head 2, one of the clamping mechanisms includes a first U-shaped plate 7 and two clamping plates 8, and two telescopic columns are symmetrically fixedly installed on the two clamping plates 8, and one end of each telescopic column away from the clamping plate 8 is fixedly connected to the first U-shaped plate 7, and each telescopic column is provided with a second spring 9, and the two ends of each second spring 9 are respectively fixedly connected to the corresponding clamping plate 8 and the first U-shaped plate 7, and the first U-shaped plate 7 is fixedly connected to the first U-shaped plate 7. A second U-shaped plate 10 is fixedly installed, and two second bolts 11 are screwed on the second U-shaped plate 10. Threaded holes are provided on the first mounting plate 3 and the second mounting plate 4, and the two second bolts 11 are screwed on the two threaded holes respectively. By fitting the two clamping plates 8 with the outer side walls of the first mounting plate 3 and the second mounting plate 4 respectively, the two clamping plates 8 squeeze the multiple second springs 9, and the multiple second springs 9 react to the two clamping plates 8 through the elastic force of the multiple second springs 9 themselves, and the first mounting plate 3 and the second mounting plate 4 are clamped by the two clamping plates 8, and the first mounting plate 3 and the second mounting plate 4 are threadedly connected to the first mounting plate 3 and the second mounting plate 4 by the two second bolts 11, so that the first U-shaped plate 7 is more stable.
[0026] See also Figure 4 Rubber pads 12 are arranged on the inner side walls of the two clamping plates 8. The arrangement of the two rubber pads 12 increases the friction force, making the two clamping plates 8 more stable and less likely to slip.
[0027] See also Figure 4 It should also be noted that auxiliary plates 13 are fixedly installed on the two splints 8, and two movable grooves are symmetrically opened on the first U-shaped plate 7. The two auxiliary plates 13 are slidably connected to the two movable grooves respectively, and the cooperation of the two auxiliary plates 13 facilitates the movement of the two splints 8.
[0028] See also Figure 1 and Figure 2 Each first bolt 6 is provided with an anti-skid pattern 14 , and the setting of each anti-skid pattern 14 increases the friction force to prevent the hand from slipping.
[0029] In summary, when the safety joint for drilling is used, the first connection head 1 and the second connection head 2 are rotated to perform the connection operation. When the first connection head 1 and the second connection head 2 are connected, the first mounting plate 3 and the second mounting plate 4 are gradually approached. The first bolts 6 are pressed in sequence to make the first bolts 6 pass through the first mounting plate 3, so that the first spring 5 is compressed. The nuts matched with each first bolt 6 are rotated to fix the first bolts 6, so that the first mounting plate 3 and the second mounting plate 4 are connected by multiple first bolts 6. By respectively connecting the two clamping plates 8 to the first mounting plate 3, the first spring 5 is compressed. The outer wall of the second mounting plate 4 is fitted together, so that the two clamping plates 8 squeeze the multiple second springs 9, and the multiple second springs 9 react to the two clamping plates 8 through their own elastic force, and the first mounting plate 3 and the second mounting plate 4 are clamped by the two clamping plates 8, and the first mounting plate 3 and the second mounting plate 4 are threadedly connected to the first mounting plate 3 and the second mounting plate 4 through two second bolts 11, so that the first U-shaped plate 7 is more stable, and then the clamping and limiting operation of the first mounting plate 3 and the second mounting plate 4 is realized, so that the first mounting plate 3 and the second mounting plate 4 are safer and more stable.
[0030] Although the 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 safety joint for drilling, comprising a first connector (1) and a second connector (2), characterized in that: The first connector (1) is provided with a threaded hole, the second connector (2) is provided with an external thread, and the first connector (1) and the second connector (2) are connected via threads; The first connecting head (1) and the second connecting head (2) are fixedly connected by a connecting mechanism, the connecting mechanism comprising a plurality of first bolts (6), a first mounting plate (3) is fixedly mounted on the first connecting head (1), a second mounting plate (4) is fixedly mounted on the second connecting head (2), a plurality of first through holes and second through holes are provided on the first mounting plate (3) and the second mounting plate (4), each of the first through holes is connected to a corresponding second through hole, a plurality of first springs (5) are fixedly mounted on the outer wall of the second mounting plate (4), one end of the plurality of first springs (5) away from the second mounting plate (4) is fixedly connected to the corresponding first bolt (6), and one end of the first bolt (6) passes through the first spring (5) and is located in the corresponding second through hole; The first mounting plate (3) and the second mounting plate (4) are clamped and fixed by two clamping mechanisms.
2. The safety joint for drilling according to claim 1, characterized in that: One of the clamping mechanisms comprises a first U-shaped plate (7) and two clamping plates (8), two telescopic columns are symmetrically fixedly mounted on the two clamping plates (8), one end of each telescopic column away from the clamping plate (8) is fixedly connected to the first U-shaped plate (7), each telescopic column is provided with a second spring (9), the two ends of each second spring (9) are respectively fixedly connected to the corresponding clamping plate (8) and the first U-shaped plate (7), a second U-shaped plate (10) is fixedly mounted on the first U-shaped plate (7), two second bolts (11) are screwed on the second U-shaped plate (10), threaded holes are provided on the first mounting plate (3) and the second mounting plate (4), and the two second bolts (11) are respectively screwed on the two threaded holes.
3. The safety joint for drilling according to claim 2, characterized in that: Rubber pads (12) are provided on the inner side walls of the two clamping plates (8).
4. The safety joint for drilling according to claim 3, characterized in that: An auxiliary plate (13) is fixedly mounted on each of the two clamping plates (8), two movable grooves are symmetrically provided on the first U-shaped plate (7), and the two auxiliary plates (13) are respectively slidably connected to the two movable grooves.
5. The safety joint for drilling according to claim 4, characterized in that: Each of the first bolts (6) is provided with an anti-slip pattern (14).