CN211851692U - Connecting structure of coiled tubing drilling device - Google Patents
Connecting structure of coiled tubing drilling device Download PDFInfo
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- CN211851692U CN211851692U CN201922265657.1U CN201922265657U CN211851692U CN 211851692 U CN211851692 U CN 211851692U CN 201922265657 U CN201922265657 U CN 201922265657U CN 211851692 U CN211851692 U CN 211851692U
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Abstract
The utility model provides a connecting structure of a continuous pipe drilling device, which comprises a first tool shell, a first tool inner cylinder, a second tool shell, a second tool inner cylinder, a cable female plug and a cable male plug; under the condition that the connecting structure is in a connecting state, a first thread of the first tool shell is connected with a second thread of the second tool shell, the first fluid channel is communicated with the second fluid channel, and the cable female plug is plugged with the cable male plug; under the condition that the connecting structure is in a separated state, the first tool shell and the second tool shell are separated, and the cable female plug and the cable male plug are separated. According to the scheme, the first tool shell and the second tool shell are connected, and meanwhile, the connection of the cable male plug and the cable female plug is realized, so that the connection of different cables and the connection of different tools are realized. The scheme can lead electric power and signal wires into the underground to drive the directional mechanism in an electric mode, can realize signal transmission and improve the drilling efficiency and reliability.
Description
Technical Field
The utility model relates to an oil field equipment technical field particularly, relates to a connection structure of coiled tubing drilling equipment.
Background
The coiled tubing drilling technology is a novel drilling mode which is started in recent years, has the advantages of low cost, high efficiency, high safety and reliability and the like, and the current mature coiled tubing drilling mode depends on mud to drive an underground power drilling tool and a directional mechanism. If a cable mode is adopted, electric power and signal wires are led into the underground, an electric mode can be adopted to drive the directional mechanism, bidirectional high-speed transmission of signals can be realized, and the drilling efficiency and reliability are improved. The existing coiled tubing drilling devices are inconvenient for the connection of cables and different tools and the downhole introduction, which affects the operating efficiency.
Disclosure of Invention
The utility model provides a connection structure of coiled tubing drilling equipment to realize the connection between cable and instrument.
In order to achieve the above object, the present invention provides a connection structure of a coiled tubing drilling device, including a first tool housing, a first tool inner cylinder, a second tool housing, a second tool inner cylinder, a cable female plug and a cable male plug, wherein the first tool inner cylinder is disposed in the first tool housing, a first fluid passage is provided between the first tool housing and the first tool inner cylinder, the first tool housing has a first thread, and the cable female plug is disposed in the first tool inner cylinder; the second tool inner barrel is disposed within the second tool housing with a second fluid passageway therebetween, the second tool housing has a second thread, and the cable male plug is disposed in the second tool inner barrel; the connecting structure has a connecting state and a separating state, under the condition that the connecting structure is in the connecting state, a first thread of the first tool housing is connected with a second thread of the second tool housing, the first fluid channel is communicated with the second fluid channel, and the cable female plug is plugged with the cable male plug; under the condition that the connecting structure is in the separated state, the first tool shell and the second tool shell are separated, and the cable female plug and the cable male plug are separated.
Further, the first tool inner cylinder is of a hollow cylindrical structure, the first tool inner cylinder is provided with a female mounting hole and a first cable channel for passing through a cable, and the first cable channel is communicated with the female mounting hole; the female plug of cable sets up in the female mounting hole, the female plug of cable has interface and first seal groove, the interface be used for with the public plug of cable pegs graft, first seal groove sets up on the outer wall of female plug of cable.
Further, female constant head tank has on the inner wall of female mounting hole, female plug of cable includes female cylinder and protrusion setting and is in female locating piece on the female cylinder, the interface with first seal groove all is located on the female cylinder, female locating piece sets up in the female constant head tank, in order to right female plug of cable circumference is fixed a position.
Furthermore, a first positioning shoulder is arranged at the bottom of the female mounting hole, a first clamping groove is formed in the inner wall of the female mounting hole, and a first annular groove is formed in one end, facing the bottom of the female mounting hole, of the cable female plug; connection structure still includes first jump ring and first elastic washer, first jump ring joint is in first joint inslot, first jump ring with the terminal surface butt of the female plug of cable, first elastic washer sets up in the first ring channel, first elastic washer with first location circular bead butt.
Further, the second tool inner cylinder is of a hollow cylindrical structure, the second tool inner cylinder is provided with a male mounting hole and a second cable channel for passing through a cable, and the second cable channel is communicated with the male mounting hole; at least a portion of the male cable plug is disposed within the male installation hole, the male cable plug having a second sealing groove disposed on an outer wall of the male cable plug.
Further, public constant head tank has on the inner wall of public mounting hole, public plug of cable includes erection section, grafting section and public locating piece, the grafting section with the erection section is connected, public locating piece protrusion sets up on the erection section, the erection section sets up in the public mounting hole, public locating piece sets up in the public constant head tank in order to right the circumference of public plug of cable is fixed a position, the second seal groove sets up the erection section and/or on the outer wall of grafting section, the grafting section be used for with the female plug of cable pegs graft.
Further, second joint groove has on the inner wall of public mounting hole, the orientation of the public plug of cable the one end of the tank bottom of public mounting hole has the second ring channel, connection structure still includes second jump ring and second elastic washer, the second jump ring joint is in the second joint inslot, the second jump ring with the public plug of cable is spacing cooperation, second elastic washer sets up in the second ring channel, second elastic washer with the tank bottom butt of public mounting hole.
Further, the first tool housing is of a hollow cylindrical structure, the first tool housing comprises a first cylinder section, a second cylinder section and a third cylinder section which are sequentially connected, the outer walls of the first cylinder section and the third cylinder section are both of cylindrical structures, the outer wall of the second cylinder section is of a conical structure, and the first threads are arranged on the outer wall of the second cylinder section; the second tool shell is of a hollow cylindrical structure, a first through hole, a second through hole and a third through hole which are communicated in sequence are formed in the second tool shell, the second tool inner cylinder is arranged in the first through hole and the second through hole, the inner wall of the second through hole is of a cylindrical structure, the inner wall of the third through hole is of a conical structure, and the second threads are arranged on the inner wall of the second through hole; the third cylinder section is used for being matched with the second through hole, and the second cylinder section is used for being matched with the third through hole.
Furthermore, a first limiting step is arranged on the outer wall of the first cylinder section and used for being abutted to the end face of the second tool shell, a second limiting step is arranged on the inner wall of the second through hole, and the end face of the third cylinder section is used for being abutted to the second limiting step.
Furthermore, a third limiting step is arranged on the inner wall of the first cylinder section, a fourth limiting step is arranged on the outer wall of the first tool inner cylinder, and the fourth limiting step is abutted against the third limiting step so as to limit the relative position of the first tool inner cylinder and the first tool shell in the length direction.
The technical scheme of the utility model is applied, a connection structure of coiled tubing drilling equipment is provided, including a first tool housing, a first tool inner cylinder, a second tool housing, a second tool inner cylinder, a cable female plug and a cable male plug, wherein, the first tool inner cylinder is arranged in the first tool housing, a first fluid channel is arranged between the first tool housing and the first tool inner cylinder, the first tool housing is provided with a first thread, the cable female plug is arranged in the first tool inner cylinder; the second tool inner cylinder is arranged in a second tool shell, a second fluid channel is arranged between the second tool shell and the second tool inner cylinder, the second tool shell is provided with a second thread, and the cable male plug is arranged in the second tool inner cylinder; the connecting structure has a connecting state and a separating state, under the condition that the connecting structure is in the connecting state, a first thread of the first tool shell is connected with a second thread of the second tool shell, the first fluid channel is communicated with the second fluid channel, and the cable female plug is plugged with the cable male plug; under the condition that the connecting structure is in a separated state, the first tool shell and the second tool shell are separated, and the cable female plug and the cable male plug are separated. By adopting the scheme, when the first tool shell and the second tool shell are connected, the connection of the cable male plug and the cable female plug can be realized, so that the connection of different cables and the connection of different tools are realized, and the operation is convenient. Therefore, electric power and signal wires can be led into the underground to drive the directional mechanism in an electric mode, high-speed transmission of signals can be realized, and the drilling efficiency and reliability are improved.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic structural diagram of a connection structure of a coiled tubing drilling device according to an embodiment of the present invention;
FIG. 2 shows a schematic structural view of the first tool housing of FIG. 1;
FIG. 3 shows a schematic view of the first tool inner barrel of FIG. 1;
FIG. 4 shows a schematic structural view of the second tool housing of FIG. 1;
FIG. 5 shows a schematic structural view of the female cable plug of FIG. 1;
FIG. 6 shows a schematic structural view of the cable male plug of FIG. 1;
fig. 7 shows a schematic view of the second tool inner barrel of fig. 1.
Wherein the figures include the following reference numerals:
1. a first tool housing; 101. a first limit step; 102. a first thread; 103. a first fluid channel; 104. a third barrel section;
2. a first tool inner barrel; 201. a first cable channel; 202. a first positioning shoulder; 203. a female mounting hole; 204. a first clamping groove; 205. sealing the counter bore; 206. a female positioning groove;
3. a second tool housing; 301. a second thread; 302. a second through hole; 303. a second fluid passage;
4. a cable female plug; 401. a first annular groove; 402. a first seal groove; 404. a female positioning block;
5. a cable male plug; 501. a second seal groove; 502. a male positioning block; 504. a second annular groove;
6. a second tool inner barrel; 601. a male positioning groove; 602. a second clamping groove; 603. a male mounting hole; 604. a second cable channel; 605. a third seal groove;
7. a first seal ring; 8. a second resilient gasket; 9. a second seal ring; 10. a second clamp spring; 11. a first clamp spring; 12. a third seal ring; 13. a first resilient gasket.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in the accompanying drawings, an embodiment of the present invention provides a connection structure of a coiled tubing drilling device, the connection structure includes a first tool housing 1, a first tool inner cylinder 2, a second tool housing 3, a second tool inner cylinder 6, a cable female plug 4 and a cable male plug 5, wherein the first tool inner cylinder 2 is disposed in the first tool housing 1, a first fluid channel 103 is provided between the first tool housing 1 and the first tool inner cylinder 2, the first tool housing 1 has a first thread 102, and the cable female plug 4 is disposed in the first tool inner cylinder 2; the second tool inner cylinder 6 is arranged in the second tool housing 3, a second fluid passage 303 is formed between the second tool housing 3 and the second tool inner cylinder 6, the second tool housing 3 is provided with a second thread 301, and the cable male plug 5 is arranged in the second tool inner cylinder 6; the connecting structure has a connecting state and a separating state, under the condition that the connecting structure is in the connecting state, the first thread 102 of the first tool housing 1 is connected with the second thread 301 of the second tool housing 3, the first fluid channel 103 is communicated with the second fluid channel 303, and the cable female plug 4 is plugged with the cable male plug 5; when the connection structure is in the separated state, the first tool housing 1 and the second tool housing 3 are separated, and the cable female plug 4 and the cable male plug 5 are separated.
By applying the technical scheme of the embodiment, a connection structure of a coiled tubing drilling device is provided, which comprises a first tool housing 1, a first tool inner cylinder 2, a second tool housing 3, a second tool inner cylinder 6, a cable female plug 4 and a cable male plug 5, wherein the first tool inner cylinder 2 is arranged in the first tool housing 1, a first fluid passage 103 is formed between the first tool housing 1 and the first tool inner cylinder 2, the first tool housing 1 is provided with a first thread 102, and the cable female plug 4 is arranged in the first tool inner cylinder 2; the second tool inner cylinder 6 is arranged in the second tool housing 3, a second fluid passage 303 is formed between the second tool housing 3 and the second tool inner cylinder 6, the second tool housing 3 is provided with a second thread 301, and the cable male plug 5 is arranged in the second tool inner cylinder 6; the connecting structure has a connecting state and a separating state, under the condition that the connecting structure is in the connecting state, the first thread 102 of the first tool housing 1 is connected with the second thread 301 of the second tool housing 3, the first fluid channel 103 is communicated with the second fluid channel 303, and the cable female plug 4 is plugged with the cable male plug 5; when the connection structure is in the separated state, the first tool housing 1 and the second tool housing 3 are separated, and the cable female plug 4 and the cable male plug 5 are separated. By adopting the scheme, when the first tool shell 1 and the second tool shell 3 are connected, the connection of the cable male plug 5 and the cable female plug 4 can be realized, so that the connection of different cables and the connection of different tools are realized, and the operation is convenient. Therefore, electric power and signal wires can be led into the underground to drive the directional mechanism in an electric mode, bidirectional high-speed transmission of signals can be realized, and the drilling efficiency and reliability are improved.
The cable male plug 5 and the cable female plug 4 in the scheme are both used for connecting cables. The first tool housing 1 and the first tool inner cylinder 2 belong to a first tool, and the second tool housing 3 and the second tool inner cylinder 6 belong to a second tool. The first fluid channel 103 and the second fluid channel 303 in this embodiment can be used for conveying fluid such as slurry to cool or drive the device. Optionally, the first fluid channel 103 and the second fluid channel 303 are both annular channels, which may increase the flow rate.
Alternatively, with the connection structure in the connection state, the first tool inner cylinder 2 and the second tool inner cylinder 6 are plugged for positioning, so that the plugging of the cable female plug 4 and the cable male plug 5 is facilitated, and the connection strength can be improved.
Alternatively, the end of the second tool inner cylinder 6 is inserted into the first tool inner cylinder 2, and the outer wall of the second tool inner cylinder 6 has a limit step which abuts against the end face of the first tool inner cylinder 2 to limit the axial direction of the first and second tool inner cylinders 2 and 6.
In the present embodiment, the first tool inner cylinder 2 is a hollow cylindrical structure, the first tool inner cylinder 2 has a female mounting hole 203 and a first cable passage 201 for passing a cable, and the first cable passage 201 is communicated with the female mounting hole 203; the cable female plug 4 is arranged in the female mounting hole 203, the cable female plug 4 is provided with a plug interface and a first sealing groove 402, the plug interface is used for being plugged with the cable male plug 5, and the first sealing groove 402 is arranged on the outer wall of the cable female plug 4. In this way, a cable can be inserted through the first cable channel 201 and connected to the female cable plug 4. A third sealing ring 12 may be provided through the first sealing groove 402 to improve the sealing effect.
In this embodiment, the female positioning groove 206 is formed on the inner wall of the female mounting hole 203, the cable female plug 4 includes a female cylinder and a female positioning block 404 protruding from the female cylinder, the insertion port and the first sealing groove 402 are both located on the female cylinder, and the female positioning block 404 is disposed in the female positioning groove 206 to position the circumferential direction of the cable female plug 4. The circumferential direction of the cable female plug 4 can be positioned by matching the female positioning block 404 and the female positioning groove 206, so that the rotation is prevented.
Further, the groove bottom of the female mounting hole 203 is provided with a first positioning shoulder 202, the inner wall of the female mounting hole 203 is provided with a first clamping groove 204, and one end of the cable female plug 4 facing the groove bottom of the female mounting hole 203 is provided with a first annular groove 401; the connecting structure further comprises a first clamp spring 11 and a first elastic gasket 13, the first clamp spring 11 is clamped in a first clamping groove 204, the first clamp spring 11 is abutted to the end face of the cable female plug 4, the first elastic gasket 13 is arranged in a first annular groove 401, and the first elastic gasket 13 is abutted to the first positioning shoulder 202. Through the arrangement, the axial direction of the cable female plug 4 can be reliably positioned. Furthermore, the first elastic washer 13 may buffer the cable female plug 4 during assembly.
In the present embodiment, the second tool inner cylinder 6 is a hollow cylindrical structure, the second tool inner cylinder 6 has a male mounting hole 603 and a second cable passage 604 for passing a cable, and the second cable passage 604 is communicated with the male mounting hole 603; at least a part of the cable male plug 5 is disposed in the male mounting hole 603, and the cable male plug 5 has a second sealing groove 501, and the second sealing groove 501 is disposed on an outer wall of the cable male plug 5. This allows the cable to be threaded through the second cable channel 604 and connected to the cable male plug 5. The first sealing ring 7 may be disposed through the second sealing groove 501 to improve the sealing effect.
In this embodiment, public constant head tank 601 has on the inner wall of public mounting hole 603, cable public plug 5 includes the erection segment, grafting section and public locating piece 502, the grafting section is connected with the erection segment, public locating piece 502 protrusion sets up on the erection segment, the erection segment sets up in public mounting hole 603, public locating piece 502 sets up in public constant head tank 601 in order to fix a position cable public plug 5's circumference, second seal groove 501 sets up on the outer wall of erection segment and/or grafting section, the grafting section is used for pegging graft with cable female plug 4. The circumference of the cable male plug 5 can be limited by the cooperation of the male positioning block 502 and the male positioning groove 601.
Further, second joint groove 602 has on the inner wall of public mounting hole 603, the one end of the public plug 5 of cable towards the tank bottom of public mounting hole 603 has second annular groove 504, connection structure still includes second jump ring 10 and second elastic washer 8, second jump ring 10 joint is in second joint groove 602, second jump ring 10 and the spacing cooperation of public plug 5 of cable, second elastic washer 8 sets up in second annular groove 504, second elastic washer 8 and the tank bottom butt of public mounting hole 603. Through the arrangement, the axial direction of the cable male plug 5 can be reliably positioned. Furthermore, the second elastic washer 8 may buffer the cable male plug 5 during assembly.
Optionally, the first tool inner cylinder 2 is further provided with a sealing counter bore 205 communicated with the female mounting hole 203, and after assembly, a part of the second tool inner cylinder 6 is inserted into the sealing counter bore 205, so that positioning and reliable connection of the first tool inner cylinder 2 and the second tool inner cylinder 6 can be realized, connection of the cable male plug 5 and the cable female plug 4 can be realized, and reliability of connection can be ensured. A third sealing groove 605 is arranged on the outer wall of the second tool inner cylinder 6, and a second sealing ring 9 is arranged between the third sealing groove 605 and the inner wall of the sealing counter bore 205, so that the sealing effect is improved, and liquid is prevented from entering the cable.
In this embodiment, the first tool housing 1 is a hollow cylindrical structure, the first tool housing 1 includes a first cylinder section, a second cylinder section and a third cylinder section 104 which are connected in sequence, outer walls of the first cylinder section and the third cylinder section 104 are both cylindrical structures, an outer wall of the second cylinder section is a conical structure, and the first thread 102 is arranged on the outer wall of the second cylinder section; the second tool housing 3 is of a hollow cylindrical structure, a first through hole, a second through hole 302 and a third through hole which are sequentially communicated are formed in the second tool housing 3, the second tool inner cylinder 6 is arranged in the first through hole and the second through hole 302, the inner wall of the second through hole 302 is of a cylindrical structure, the inner wall of the third through hole is of a conical structure, and the second threads 301 are arranged on the inner wall of the second through hole 302; wherein the third barrel section 104 is adapted to mate with the second through-hole 302 and the second barrel section is adapted to mate with the third through-hole. Through the arrangement, the third cylinder section 104 and the second through hole 302 can be matched to play a role in guiding and limiting, so that the first tool housing 1 and the second tool housing 3 can be conveniently butted. The arrangement is such that the first thread 102 and the second thread 301 are both tapered threads, which improves the connection efficiency.
In this embodiment, the outer wall of the first cylinder section has a first limit step 101, the first limit step 101 is used for abutting against the end face of the second tool housing 3, the inner wall of the second through hole 302 has a second limit step, and the end face of the third cylinder section 104 is used for abutting against the second limit step. Through the arrangement, the first tool shell 1 and the second tool shell 3 can be limited in the axial direction, and damage caused by overlarge axial force is avoided.
Further, the inner wall of the first cylinder section is provided with a third limiting step, the outer wall of the first tool inner cylinder 2 is provided with a fourth limiting step, and the fourth limiting step is abutted against the third limiting step so as to limit the relative position of the first tool inner cylinder 2 and the first tool housing 1 in the length direction. This can define the positions of the first tool inner cylinder 2 and the first tool housing 1 in the longitudinal direction, and improve the reliability of connection.
By adopting the scheme, when the first tool shell 1 and the second tool shell 3 are connected, the connection of the cable male plug 5 and the cable female plug 4 can be realized, so that the connection of different cables and the connection of different tools are realized, and the operation is convenient. Therefore, electric power and signal wires can be led into the underground to drive the directional mechanism in an electric mode, bidirectional high-speed transmission of signals can be realized, and the drilling efficiency and reliability are improved. Compared with the prior art, the scheme has the advantages that: the utility model discloses a concentric binocular structure has realized cable junction's wet-dry separation, has reduced cable plug's the design degree of difficulty and connection risk. The specially designed guide structure can play a role in righting in the connection process, and the cable plug is prevented from being damaged by extrusion. Has the advantages of simple structure and convenient and quick installation.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A connecting structure of a coiled tubing drilling device is characterized by comprising a first tool shell (1), a first tool inner cylinder (2), a second tool shell (3), a second tool inner cylinder (6), a cable female plug (4) and a cable male plug (5),
the first tool inner cylinder (2) is arranged in the first tool housing (1), a first fluid passage (103) is arranged between the first tool housing (1) and the first tool inner cylinder (2), the first tool housing (1) is provided with a first thread (102), and the cable female plug (4) is arranged in the first tool inner cylinder (2);
the second tool inner barrel (6) is arranged in the second tool housing (3), a second fluid passage (303) is formed between the second tool housing (3) and the second tool inner barrel (6), the second tool housing (3) is provided with a second thread (301), and the cable male plug (5) is arranged in the second tool inner barrel (6);
the connecting structure has a connecting state and a separating state, under the condition of the connecting state, the first thread (102) of the first tool housing (1) is connected with the second thread (301) of the second tool housing (3), the first fluid channel (103) is communicated with the second fluid channel (303), and the cable female plug (4) is plugged with the cable male plug (5); under the condition that the connecting structure is in the separated state, the first tool shell (1) and the second tool shell (3) are separated, and the cable female plug (4) and the cable male plug (5) are separated.
2. The connection structure according to claim 1,
the first tool inner cylinder (2) is of a hollow cylindrical structure, the first tool inner cylinder (2) is provided with a female mounting hole (203) and a first cable channel (201) for passing a cable, and the first cable channel (201) is communicated with the female mounting hole (203);
the cable female plug (4) is arranged in the female mounting hole (203), the cable female plug (4) is provided with a plug interface and a first sealing groove (402), the plug interface is used for being plugged with the cable male plug (5), and the first sealing groove (402) is arranged on the outer wall of the cable female plug (4).
3. The connecting structure according to claim 2, wherein the female mounting hole (203) has a female positioning groove (206) on an inner wall thereof, the cable female plug (4) comprises a female cylinder and a female positioning block (404) protruding from the female cylinder, the socket and the first sealing groove (402) are both located on the female cylinder, and the female positioning block (404) is disposed in the female positioning groove (206) to position the cable female plug (4) in a circumferential direction.
4. The connection structure according to claim 2, wherein the groove bottom of the female mounting hole (203) has a first positioning shoulder (202), the inner wall of the female mounting hole (203) has a first snap groove (204), and the end of the cable female plug (4) facing the groove bottom of the female mounting hole (203) has a first annular groove (401); connection structure still includes first jump ring (11) and first elastic washer (13), first jump ring (11) joint is in first joint groove (204), first jump ring (11) with the terminal surface butt of cable female plug (4), first elastic washer (13) set up in first ring channel (401), first elastic washer (13) with first location circular bead (202) butt.
5. The connection structure according to claim 1,
the second tool inner cylinder (6) is of a hollow cylindrical structure, the second tool inner cylinder (6) is provided with a male mounting hole (603) and a second cable channel (604) for passing a cable, and the second cable channel (604) is communicated with the male mounting hole (603);
at least a portion of the cable male plug (5) is disposed within the male mounting hole (603), the cable male plug (5) having a second sealing groove (501), the second sealing groove (501) being disposed on an outer wall of the cable male plug (5).
6. The connecting structure according to claim 5, wherein a male positioning groove (601) is formed in an inner wall of the male mounting hole (603), the male cable plug (5) comprises a mounting section, a plug section and a male positioning block (502), the plug section is connected with the mounting section, the male positioning block (502) is convexly arranged on the mounting section, the mounting section is arranged in the male mounting hole (603), the male positioning block (502) is arranged in the male positioning groove (601) to position the circumferential direction of the male cable plug (5), the second sealing groove (501) is arranged on an outer wall of the mounting section and/or the plug section, and the plug section is used for being plugged with the female cable plug (4).
7. The connecting structure according to claim 5, characterized in that the inner wall of the male mounting hole (603) is provided with a second snap groove (602), the end of the cable male plug (5) facing the groove bottom of the male mounting hole (603) is provided with a second annular groove (504), the connecting structure further comprises a second snap spring (10) and a second elastic washer (8), the second snap spring (10) is snapped in the second snap groove (602), the second snap spring (10) is in limit fit with the cable male plug (5), the second elastic washer (8) is arranged in the second annular groove (504), and the second elastic washer (8) is abutted against the groove bottom of the male mounting hole (603).
8. The connection structure according to claim 1,
the first tool shell (1) is of a hollow cylindrical structure, the first tool shell (1) comprises a first cylinder section, a second cylinder section and a third cylinder section (104) which are sequentially connected, the outer walls of the first cylinder section and the third cylinder section (104) are both of cylindrical structures, the outer wall of the second cylinder section is of a conical structure, and the first threads (102) are arranged on the outer wall of the second cylinder section;
the second tool housing (3) is of a hollow cylindrical structure, a first through hole, a second through hole (302) and a third through hole which are sequentially communicated are formed in the second tool housing (3), the second tool inner cylinder (6) is arranged in the first through hole and the second through hole (302), the inner wall of the second through hole (302) is of a cylindrical structure, the inner wall of the third through hole is of a conical structure, and the second threads (301) are arranged on the inner wall of the second through hole (302);
wherein the third barrel section (104) is adapted to mate with the second through hole (302), and the second barrel section is adapted to mate with the third through hole.
9. The connection according to claim 8, wherein the first barrel section has a first limit step (101) on an outer wall thereof, the first limit step (101) being adapted to abut against an end face of the second tool housing (3), the second through hole (302) has a second limit step on an inner wall thereof, and the third barrel section (104) has an end face adapted to abut against the second limit step.
10. The connection according to claim 8, wherein the inner wall of the first cylinder section has a third limit step thereon, and the outer wall of the first tool inner cylinder (2) has a fourth limit step thereon, the fourth limit step abutting against the third limit step to define the relative position of the first tool inner cylinder (2) and the first tool housing (1) in the length direction.
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| CN201922265657.1U CN211851692U (en) | 2019-12-16 | 2019-12-16 | Connecting structure of coiled tubing drilling device |
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| CN201922265657.1U CN211851692U (en) | 2019-12-16 | 2019-12-16 | Connecting structure of coiled tubing drilling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983292A (en) * | 2019-12-16 | 2021-06-18 | 中国石油天然气集团有限公司 | Connecting structure of coiled tubing drilling device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983292A (en) * | 2019-12-16 | 2021-06-18 | 中国石油天然气集团有限公司 | Connecting structure of coiled tubing drilling device |
| CN112983292B (en) * | 2019-12-16 | 2024-05-28 | 中国石油天然气集团有限公司 | Connection structure of coiled tubing drilling device |
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