CN109581480B - Air gun focus gun bar - Google Patents
Air gun focus gun bar Download PDFInfo
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- CN109581480B CN109581480B CN201811503402.8A CN201811503402A CN109581480B CN 109581480 B CN109581480 B CN 109581480B CN 201811503402 A CN201811503402 A CN 201811503402A CN 109581480 B CN109581480 B CN 109581480B
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- rod
- connecting rod
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- groove
- limiting
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/02—Generating seismic energy
- G01V1/04—Details
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- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Acoustics & Sound (AREA)
- Environmental & Geological Engineering (AREA)
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Abstract
The invention provides an air gun seismic source gun bar, which comprises: a rod body; a connecting rod; one end of the connecting rod is provided with a connecting part for connecting with an air gun; connecting sleeves; the connecting sleeve is sleeved at one end of the connecting rod back to the connecting part; a limiting groove is arranged in the connecting sleeve, and a limiting part which is used for extending into the limiting groove is arranged on the connecting rod; one end of the connecting sleeve back to the connecting rod is detachably connected with the rod body; two ends of the rod body are respectively detachably connected with a connecting sleeve, a connecting rod is arranged in each connecting sleeve in a penetrating way, a limiting groove is arranged in each connecting sleeve, and a limiting rod is arranged in each connecting sleeve; the spacing groove includes sets up the annular in the connecting sleeve along circumference, and the locating part includes sets up the bulge loop on the connecting rod along circumference, and the bulge loop is used for stretching into in the annular. The application provides an air gun source gun bar that can assemble and disassemble to improve structural strength, reduce the rupture probability and improve the reliability of using.
Description
Technical Field
The invention relates to the technical field of marine seismic exploration, in particular to an air gun seismic source gun bar.
Background
The air gun source gun bar is used for connecting an air gun to form an air gun array.
In the prior art, the air gun focus gun bar is a long rod of an integrated structure and cannot be disassembled. Because the length of the long rod is long, the long rod is inconvenient to transport and is easy to break in the using process, and the broken gun rod can not be repaired and can only be discarded. The air gun seismic source gun bar in the prior art is disposable, increases the purchase, inventory and production costs, influences the normal work of an air gun seismic source and cannot ensure the reliability of the air gun work.
Disclosure of Invention
In view of the above, the present invention provides an air gun source gun bar that can be assembled and disassembled to improve structural strength, reduce breakage probability, and improve reliability of use.
The above object of the present invention can be achieved by the following technical solutions: an air gun source gun bar comprising: a rod body; a connecting rod; one end of the connecting rod is provided with a connecting part for connecting with an air gun; connecting sleeves; the connecting sleeve is sleeved at one end of the connecting rod back to the connecting part; a limiting groove is formed in the connecting sleeve, and a limiting part which is used for extending into the limiting groove is arranged on the connecting rod; one end of the connecting sleeve back to the connecting rod is detachably connected with the rod body.
As a preferred embodiment, two ends of the rod body are detachably connected with one connecting sleeve respectively, one connecting rod penetrates through each connecting sleeve, one limiting groove is arranged in each connecting sleeve, and one limiting rod is arranged in each connecting sleeve.
In a preferred embodiment, the connecting portion is an external thread.
As a preferred embodiment, the limiting groove includes an annular groove circumferentially disposed in the connecting sleeve, and the limiting member includes a convex ring circumferentially disposed on the connecting rod, and the convex ring is configured to extend into the annular groove.
As a preferred embodiment, the limiting groove further comprises an upper key groove arranged on the inner wall above the connecting sleeve, a lower key groove opposite to the upper key groove is arranged on the connecting rod, and the limiting part further comprises a key arranged in the lower key groove and extending into the upper key groove.
In a preferred embodiment, the annular groove is located on one side of the upper key groove in the axial direction.
In a preferred embodiment, the key is a flat key.
In a preferred embodiment, the detachable connection is a threaded connection.
As a preferred embodiment, the top of the connecting sleeve is provided with a lifting lug, and the lifting lug is provided with a through hole.
As a preferred embodiment, the connecting sleeve comprises a reducing section and an expanding section with an outer diameter larger than that of the reducing section, the limiting part is arranged in the expanding section, and the rod body is detachably connected with one end, back to the reducing section, of the limiting groove.
As a preferred embodiment, the length of the rod body is 500mm to 850 mm; the length of connecting rod is 80mm to 150 mm.
The application provides a beneficial effect of air gun seismic source rifle bar is: the air gun focus rifle thick stick of this application embodiment links to each other with the air gun through connecting portion on the connecting rod, and the locating part on the connecting rod can stretch into the spacing inslot of adapter sleeve to the connecting rod can be assembled and disassemble with the adapter sleeve. The connecting sleeve can be dismantled with the body of rod and be connected, the connecting sleeve can be assembled with the body of rod and disassemble, so air gun seismic source rifle bar can assemble and disassemble this application embodiment. Because the air gun seismic source gun bar is formed by connecting a plurality of components (connecting rods, connecting sleeves and rod bodies), the structural strength of each component can be improved, so that the strength of the whole gun bar is improved, the breakage probability is reduced, and the use reliability is improved. And once a certain part is worn or broken in use, the damaged part can be repaired by disassembling and replacing. Therefore, the air gun source gun bar can be assembled and disassembled, so that the structural strength is improved, the breakage probability is reduced, and the use reliability is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of a gun bar of an air gun source according to one embodiment of the present invention;
FIG. 2 is a cross-sectional view of an air gun source gun bar provided in accordance with one embodiment of the present invention;
FIG. 3 is a schematic view of a rod body according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a connecting rod provided in accordance with an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a connecting sleeve according to an embodiment of the present invention.
Description of reference numerals:
11. a rod body; 13. a connecting rod; 15. a connecting portion; 17. connecting sleeves; 19. a limiting groove; 21. a limiting member; 23. a ring groove; 25. a convex ring; 27. an upper keyway; 29. a lower keyway; 31. a key; 35. lifting lugs; 37. a through hole; 39. a reducing section; 41. and a diameter expanding section.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Please refer to fig. 1 to 5. An embodiment of the application provides an air gun source gun bar, which may include: a rod body 11; a connecting rod 13; one end of the connecting rod 13 is provided with a connecting part 15 for connecting with an air gun; a connecting sleeve 17; the connecting sleeve 17 is sleeved at one end of the connecting rod 13 back to the connecting part 15; a limiting groove 19 is formed in the connecting sleeve 17, and a limiting piece 21 extending into the limiting groove 19 is arranged on the connecting rod 13; one end of the connecting sleeve 17 back to the connecting rod 13 is detachably connected with the rod body 11.
The air gun source gun bar of the embodiment of the application is connected with the air gun through the connecting part 15 on the connecting rod 13, and the limiting part 21 on the connecting rod 13 can extend into the limiting groove 19 of the connecting sleeve 17, so that the connecting rod 13 can be assembled and disassembled with the connecting sleeve 17. The connecting sleeve 17 is detachably connected with the rod body 11, and the connecting sleeve 17 can be assembled and disassembled with the rod body 11, so that the air gun seismic source gun bar can be assembled and disassembled. Because the air gun seismic source gun bar is formed by connecting a plurality of components (the connecting rod 13, the connecting sleeve 17 and the rod body 11), the structural strength of each component can be improved, so that the strength of the whole gun bar is improved, the breakage probability is reduced, and the use reliability is improved. And once a certain part is worn or broken in use, the damaged part can be repaired by disassembling and replacing.
As shown in fig. 1 and 3, in the present embodiment, the rod body 11 extends lengthwise. The rod body 11 is columnar as a whole. The shape of the cross section of the rod body 11 may be circular, polygonal, etc., and this application does not intend to limit the present invention.
As shown in fig. 1 and 4, in the present embodiment, the connecting rod 13 is used to connect the rod body 11 and the air gun to form an air gun array. Specifically, one end of the connecting rod 13, in fig. 1, i.e., the upper end of the connecting rod 13, is provided with a connecting portion 15 for connecting with an air gun. The connection means may be a screw connection, a bolt connection, a threaded connection, etc. Further, the connecting portion 15 is externally threaded, so that the connecting rod 13 is threadedly connected with the air gun.
As shown in fig. 1 and 2, in the present embodiment, a connecting sleeve 17 is used to connect the rod body 11 and the connecting rod 13. Specifically, the connecting sleeve 17 is hollow and cylindrical as a whole. The hollow portion forms a through hole 20 with both ends penetrating, so that the connecting sleeve 17 can be sleeved on the connecting rod 13 and the rod body 11 through the through hole 20. Further, a connecting sleeve 17 is sleeved on one end of the connecting rod 13 opposite to the connecting portion 15. As shown in fig. 1, the upper end of the connecting sleeve 17 is sleeved on the lower end of the connecting rod 13. A limiting groove 19 is arranged in the connecting sleeve 17. The connecting rod 13 is provided with a limiting piece 21 which is used for extending into the limiting groove 19. The limiting member 21 is used for limiting the connecting rod 13, so that the connecting rod 13 cannot move relative to the connecting sleeve 17. One end of the connecting sleeve 17 back to the connecting rod 13 is detachably connected with the rod body 11. As shown in fig. 1, the lower end of the connecting sleeve 17 is detachably connected to the rod body 11. In one embodiment, the detachable connection is a threaded connection. Specifically, an internal thread is provided in one end of the connecting sleeve 17 facing away from the connecting rod 13, and an external thread capable of matching with the internal thread is provided at one end of the rod body 11. Of course, the detachable connection is not limited to a screw connection, but may be other connection means, such as a screw connection or a bolt connection.
In one embodiment, the limiting groove 19 comprises a ring groove 23 circumferentially arranged in the connecting sleeve 17, and the limiting member 21 comprises a protruding ring 25 circumferentially arranged on the connecting rod 13, the protruding ring 25 being configured to extend into the ring groove 23. Thereby through bulge loop 25 and annular 23 for connecting rod 13 can not be along axial displacement for adapter sleeve 17, thereby carries on spacingly to the axial, in order to prevent adapter sleeve 17 landing from connecting rod 13, thereby guarantees the fastness that connecting rod 13 and adapter sleeve 17 are connected.
Further, the limiting groove 19 further comprises an upper key groove 27 arranged on the upper inner wall of the connecting sleeve 17, the connecting rod 13 is provided with a lower key groove 29 opposite to the upper key groove 27, and the limiting member 21 further comprises a key 31 arranged in the lower key groove 29 and extending into the upper key groove 27. Thereby through last keyway 27, lower keyway 29 and key 31 for connecting rod 13 can not rotate for adapter sleeve 17, thereby carry on spacingly to circumference, in order to prevent that adapter sleeve 17 from rotating for connecting rod 13, thereby guarantee the stability that connecting rod 13 and adapter sleeve 17 are connected. Further, the key 31 is a flat key. Of course, the key 31 is not limited to a flat key, but may be other keys, such as a semicircular key and a hook and wedge key. This application is not intended to be limited thereto.
As shown in fig. 2, the ring groove 23 is preferably located on one side of the key 31 groove in the axial direction. As shown in fig. 2, the ring groove 23 is located on the lower side of the key 31 groove. So that in use, the key 31 is first placed into the lower keyway 29 of the connecting rod 13. The connecting rod 13 is then inserted into the connecting sleeve 17 from the lower end of the connecting sleeve 17 so that the key 31 on the connecting rod 13 can extend into the upper keyway 27 and the collar 25 on the connecting rod 13 can extend into the annular groove 23. The connection sleeve 17 is then detachably connected to the shaft body 11.
As shown in fig. 1 and 2, in one embodiment, two ends of the rod body 11 are detachably connected with a connecting sleeve 17 respectively, a connecting rod 13 penetrates through each connecting sleeve 17, a limiting groove 19 is arranged in each connecting sleeve 17, and a limiting rod is arranged in each connecting sleeve 17. That is, two connecting sleeves 17 and two connecting rods 13 are provided. Thereby the both ends of the body of rod 11 can link to each other with a connecting rod 13 through a adapter sleeve 17 respectively, and then connecting portion 15 of connecting rod 13 can link to each other with the air gun to make two air guns can connect respectively in the both ends of the body of rod 11, and then form the air gun rifle battle array.
As shown in fig. 1 and 5, in one embodiment, a lifting lug 35 is provided on the top of the connecting sleeve 17, and the lifting lug 35 has a through hole 37. The through-hole 37 is used to connect with a through-hole of the lug 35 of another gun bar, thereby connecting a plurality of gun bars.
As shown in fig. 1 and 5, in one embodiment, the connecting sleeve 17 includes a reduced diameter section 39 and an expanded diameter section 41 with an outer diameter larger than that of the reduced diameter section 39, the limiting portion is disposed in the expanded diameter section 41, and the rod body 11 is detachably connected with one end of the limiting groove 19 opposite to the reduced diameter section 39. Thereby facilitating the connection between the connection sleeve 17 and the connection rod 13 and the rod body 11. For example, as shown in the figure, since the expanding section 41 is located below the reducing section 39, the connecting rod 13 can be conveniently inserted into the connecting sleeve 17 from the lower end of the connecting sleeve 17, so that the key 31 on the connecting rod 13 can be inserted into the upper key groove 27, and the convex ring 25 on the connecting rod 13 can be inserted into the annular groove 23.
Further, the length of the rod body 11 is 500mm to 850 mm; the length of the connecting rod 13 is 80mm to 190 mm.
The assembling and disassembling processes of the forehead air gun seismic source gun bar in the embodiment of the application are as follows:
during assembly, the key 31 is first placed into the lower keyway 29 of the connecting rod 13. The connecting rod 13 is then inserted into the connecting sleeve 17 from the lower end of the connecting sleeve 17 so that the key 31 on the connecting rod 13 can extend into the upper keyway 27 and the collar 25 on the connecting rod 13 can extend into the annular groove 23. And then coating thread locking glue on the threads at the two ends of the rod body 11, screwing the two ends of the rod body 11 into the connecting sleeves 17 respectively, and performing stress application fastening by using a pipe wrench or a monkey wrench, thereby completing the assembly.
During disassembly, a powerful hot air gun is firstly adopted to heat the threaded connection part at the two ends of the rod body 11, so that the thread locking glue is ineffective. The rod body 11 is then separated from the connection sleeve 17. The connecting rod 13 is then moved axially relative to the connecting sleeve 17 so that the connecting rod 13 is separated from the connecting sleeve 17, thereby effecting disassembly of the connecting rod 13, the rod body 11 and the connecting sleeve 17.
The above are only a few embodiments of the present invention, and those skilled in the art can make various changes or modifications to the embodiments of the present invention according to the disclosure of the application document without departing from the spirit and scope of the present invention.
Claims (7)
1. An air gun source gun bar, comprising:
a rod body;
a connecting rod; one end of the connecting rod is provided with a connecting part for connecting with an air gun;
connecting sleeves; the connecting sleeve is sleeved at one end of the connecting rod back to the connecting part; a limiting groove is formed in the connecting sleeve, and a limiting part which is used for extending into the limiting groove is arranged on the connecting rod; one end of the connecting sleeve back to the connecting rod is detachably connected with the rod body; the number of the connecting sleeves is two; the number of the connecting rods is two; two ends of the rod body are respectively connected with one of the connecting rods through one of the connecting sleeves; the extending direction of the connecting rod is consistent with the extending direction of the rod body; the length of the rod body is 500mm to 850 mm; the length of the connecting rod is 80mm to 150 mm;
the limiting groove comprises a ring groove arranged in the connecting sleeve along the circumferential direction, the limiting part comprises a convex ring arranged on the connecting rod along the circumferential direction, and the convex ring is used for extending into the ring groove;
the limiting groove further comprises an upper key groove arranged on the inner wall above the connecting sleeve, a lower key groove opposite to the upper key groove is arranged on the connecting rod, and the limiting piece further comprises a key arranged in the lower key groove and extending into the upper key groove;
the annular groove is positioned on one side of the upper key groove along the axial direction;
the connecting sleeve comprises a reducing section and an expanding section with the outer diameter larger than that of the reducing section, and the annular groove and the upper key groove are both arranged in the expanding section.
2. The air gun source gun bar of claim 1, wherein: the connecting device comprises a connecting rod, connecting sleeves and limiting rods, wherein the connecting sleeves are detachably connected to two ends of the rod body respectively, one connecting rod penetrates through each connecting sleeve, one limiting groove is arranged in each connecting sleeve, and one limiting rod is arranged in each connecting sleeve.
3. The air gun source gun bar of claim 1, wherein: the connecting part is an external thread.
4. The air gun source gun bar of claim 1, wherein: the bond is a flat bond.
5. The air gun source gun bar of claim 1, wherein: the detachable connection is a threaded connection.
6. The air gun source gun bar of claim 1, wherein: the top of the connecting sleeve is provided with a lifting lug which is provided with a through hole.
7. The air gun source gun bar of claim 1, wherein: the connecting sleeve comprises a reducing section and an expanding section with the outer diameter larger than that of the reducing section, the limiting part is arranged in the expanding section, and the rod body and one end, back to the reducing section, of the limiting groove are detachably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811503402.8A CN109581480B (en) | 2018-12-10 | 2018-12-10 | Air gun focus gun bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811503402.8A CN109581480B (en) | 2018-12-10 | 2018-12-10 | Air gun focus gun bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109581480A CN109581480A (en) | 2019-04-05 |
| CN109581480B true CN109581480B (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811503402.8A Active CN109581480B (en) | 2018-12-10 | 2018-12-10 | Air gun focus gun bar |
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| CN (1) | CN109581480B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2189560A (en) * | 1986-04-22 | 1987-10-28 | Derek Frith | Drain rod locking coupling |
| CA1248212A (en) * | 1984-01-23 | 1989-01-03 | Pascal Dedole | Device for generating percussive acoustic impulses in a well |
| US5475188A (en) * | 1991-09-04 | 1995-12-12 | Geco A.S. | Device for securing two or more seismic energy sources at fixed relative positions |
| CN101349760A (en) * | 2008-08-29 | 2009-01-21 | 中国石油集团东方地球物理勘探有限责任公司 | Geological exploration pneumatic gun seismic source array gun bar |
| CN101750625A (en) * | 2009-12-16 | 2010-06-23 | 中国石油天然气集团公司 | Geological exploration air gun focus array gun bar with high navigational speed |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101463851B (en) * | 2007-12-20 | 2010-11-17 | 史丹利七和国际股份有限公司 | Telescopic connection rod |
| CN203981897U (en) * | 2014-05-28 | 2014-12-03 | 中国石油集团东方地球物理勘探有限责任公司 | For the geophysical survey device in marsh and transitional zone area, sea, beach |
| CN204009090U (en) * | 2014-08-08 | 2014-12-10 | 黄河勘测规划设计有限公司 | Combined type seismic exploration seismic source generating means |
| CN205225968U (en) * | 2015-12-16 | 2016-05-11 | 广西玉柴机器股份有限公司 | But quickly separating and connection connect pole |
| CN205484838U (en) * | 2016-01-14 | 2016-08-17 | 中石化石油工程技术服务有限公司 | Pneumatic controlled source vibrator of top formula of giving up |
| CN206684322U (en) * | 2017-03-02 | 2017-11-28 | 深圳市拓迈电子有限公司 | A kind of metal detector of easy disassembly |
| CN206723214U (en) * | 2017-05-02 | 2017-12-08 | 胡刚 | A kind of plugged and fixed formula connecting rod structure |
| CN207424269U (en) * | 2017-11-22 | 2018-05-29 | 机械工业勘察设计研究院有限公司 | A kind of Weight type seismic exploration seismic source |
-
2018
- 2018-12-10 CN CN201811503402.8A patent/CN109581480B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1248212A (en) * | 1984-01-23 | 1989-01-03 | Pascal Dedole | Device for generating percussive acoustic impulses in a well |
| GB2189560A (en) * | 1986-04-22 | 1987-10-28 | Derek Frith | Drain rod locking coupling |
| US5475188A (en) * | 1991-09-04 | 1995-12-12 | Geco A.S. | Device for securing two or more seismic energy sources at fixed relative positions |
| CN101349760A (en) * | 2008-08-29 | 2009-01-21 | 中国石油集团东方地球物理勘探有限责任公司 | Geological exploration pneumatic gun seismic source array gun bar |
| CN101750625A (en) * | 2009-12-16 | 2010-06-23 | 中国石油天然气集团公司 | Geological exploration air gun focus array gun bar with high navigational speed |
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| CN109581480A (en) | 2019-04-05 |
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