Tandem connection device for ocean logging instrument

Abstract

The utility model discloses a series connection device for an ocean logging instrument, which comprises an upper series connection shell sleeved outside a data acquisition unit and a lower series connection shell sleeved outside an acquisition memory, the upper series connection shell and the lower series connection shell are respectively sleeved with a limiting mechanism, and the two limiting mechanisms are arranged in mirror symmetry; the upper series connection shell and the lower series connection shell are connected through a connecting mechanism. According to the utility model, when the logging instrument is connected in series, the data acquisition unit and the acquisition memory can be quickly connected in series through the rotating disk, and after series connection and fixation, the rotating disk can be limited and fixed through the protective shell to ensure that the rotating disk does not deviate.

Description

Technical Field

[0001] The utility model belongs to the technical field of logging instruments, and particularly relates to a series connection device for marine logging instruments. Background Art

[0002] Marine logging is an important link in oil exploration, which involves measuring geophysical parameters such as formation resistivity and spontaneous potential to evaluate the geological structure and oil-bearing property under the seabed. In order to accurately measure these parameters, various logging instruments are required. When sending the logging instruments into the sea level for measurement, a reliable series connection device is needed to connect these instruments to ensure the accuracy of measurement. Existing logging instruments often use the flange series connection method. This series connection device uses components such as the series connection shells of two sections of marine logging instruments and screws for series connection installation. However, this existing installation method has the defects that the steps for assembling and disassembling the logging instruments are too many, resulting in inconvenient disassembly and assembly of each logging instrument, which is not conducive to improving the efficiency of downhole logging, and thus will affect the efficiency of logging operations. Summary of the Utility Model

[0003] The utility model is proposed to solve the problem that the clamping force of the traditional clamping type series connection device in the prior art is limited, which may cause the risk of loosening during the operation of the instrument and affect the efficiency of logging operations. Its purpose is to provide a series connection device for marine logging instruments.

[0004] The utility model is realized through the following technical solutions:

[0005] A series connection device for marine logging instruments includes an upper series connection shell sleeved outside the data collector and a lower series connection shell sleeved outside the acquisition memory. Limiting mechanisms are sleeved outside both the upper series connection shell and the lower series connection shell, and the two limiting mechanisms are arranged symmetrically; the upper series connection shell and the lower series connection shell are connected through a connection mechanism.

[0006] In the above technical solution, the upper series connection shell is of a sleeve type structure, and a plurality of limiting strips are formed on its inner wall along the axial direction, and a fixed disk is formed in the middle of its outer wall; the lower series connection shell has the same structure as the upper series connection shell.

[0007] In the above technical solution, the limiting mechanism includes a return spring sleeved outside the upper series connection shell or the lower series connection shell and a protective shell sleeved outside the return spring. An inner convex ring is formed inside one end of the protective shell close to the connection mechanism; the return spring is placed between the fixed disk and the inner convex ring; the protective shell is slidably connected with the fixed disk.

[0008] In the above technical solution, the limiting mechanism further includes a rotating shaft and a limiting plate. One end of the rotating shaft is inserted into one end of the protective shell close to the connecting mechanism, and the other end is fixed to the limiting plate. The limiting plate is placed above the end face of the protective shell close to the connecting mechanism and outside the connecting mechanism, and contacts the rotating disk of the connecting structure. The rotating shaft is rotatably connected to the protective shell.

[0009] In the above technical solution, the connecting mechanism includes a rotating assembly, a guiding assembly, and a resetting assembly;

[0010] The rotating assembly includes a rotating disk and a fixing plate. The rotating disk is of an annular structure, and its outer wall forms evenly distributed teeth, and its top forms a sliding card slot. The fixing plate is of a disk structure and is fixedly connected to the inner wall of the lower end of the rotating disk. The top of the fixing plate forms a limiting card slot;

[0011] The guiding assembly includes a limiting rod and a moving block. The upper end of the limiting rod is inserted into the sliding card slot, and the lower end is fixed to the moving block. The lower end of the moving block forms a convex strip, and the convex strip is inserted into the limiting card slot, and the moving block is slidably connected to the limiting card slot;

[0012] The resetting assembly includes a fixed block and a tension spring. One end of the tension spring is fixed to the fixed block, and the other end is fixed to the moving block. The fixed block is fixed to the fixing plate.

[0013] In the above technical solution, the connecting mechanism further includes a connecting block provided at the end of the data collector.

[0014] The beneficial effects of the present utility model are:

[0015] The present utility model provides a series connection device for a marine logging instrument. By setting a series connection component, when the logging instrument is serially connected, the data collector and the acquisition memory can be quickly serially connected through the rotating disk. After the serial connection is fixed, the rotating disk can be limited and fixed by the protective shell to ensure that no deviation occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a cross-sectional view of the series connection housing in the present utility model;

[0018] Figure 3 is Figure 2 a partial enlarged structural diagram at A in

[0019] Figure 4 is a cross-sectional view of the rotating disk and the limiting rod in the present utility model;

[0020] Figure 5 is Figure 2 a partial enlarged structural diagram at B in

[0021] Among them:

[0022] 1. Data collector; 2. Acquisition memory; 3. Upper series connection housing; 31. Limit strip; 32. Fixed disk; 33. Lower convex ring; 4. Lower series connection housing; 5. Reset spring; 6. Protective shell; 61. Inner convex ring; 7. Rotating shaft; 8. Limit plate; 9. Rotating disk; 91. Sliding card slot; 10. Limit rod; 11. Fixed plate; 111. Limit card slot; 12. Moving block; 13. Fixed block; 14. Tensile spring; 15. Connecting block; 16. Chute ring;

[0023] For those of ordinary skill in the art, without creative work, other relevant drawings can be obtained according to the above drawings. Specific embodiments

[0024] In order to enable the personnel in the technical field to better understand the technical solution of the present utility model, the technical solution of the present utility model will be further described below in conjunction with the specification drawings and through specific embodiments.

[0025] As Figures 1 to 5 shown, a series connection device for a marine logging instrument includes an upper series connection housing 3 sleeved outside the data collector 1 and a lower series connection housing 4 sleeved outside the acquisition memory 2. Limit mechanisms are sleeved outside both the upper series connection housing 3 and the lower series connection housing 4, and the two limit mechanisms are arranged symmetrically in a mirror image; the upper series connection housing 3 and the lower series connection housing 4 are connected through a connection mechanism;

[0026] The upper series connection housing 3 is of a sleeve type structure, and a plurality of axially arranged limit strips 31 are formed on its inner wall, and a fixed disk 32 is formed in the middle of its outer wall; the lower series connection housing 4 has the same structure as the upper series connection housing 3;

[0027] The upper series connection housing 3 and the lower series connection housing 4 are used to protect the data collector 1 and the acquisition memory 2. The data collector 1 is used to obtain various measurement data in real time during the logging process. These data may include parameters such as temperature, pressure, resistivity, and sound velocity, which are of great significance for evaluating formation properties and oil and gas reservoirs. The acquisition memory 2 is used to store the logging data collected from the sensors. During the logging process, a large amount of measurement data is obtained in real time, and the acquisition memory 2 provides a temporary storage space for saving these data for subsequent processing and analysis. The data collector 1 and the acquisition memory 2 are prior arts.

[0028] In this embodiment, two limiting bars are provided inside both the upper connecting shell 3 and the lower connecting shell 4. When the data collector 1 and the acquisition memory 2 are placed into the upper connecting shell 3 or the lower connecting shell 4, the connecting block 15 of the data collector 1 can reduce the offset distance from the moving block 12 through the limiting bars on the inner wall of the connecting shell, ensuring that the connecting block 15 and the moving block 12 are clamped and fixed to each other.

[0029] The limiting mechanism includes a return spring 5 sleeved outside the upper connecting shell 3 or the lower connecting shell 4 and a protective shell 6 sleeved outside the return spring 5. An inner convex ring 61 is formed inside one end of the protective shell 6 close to the connecting mechanism; the return spring 5 is placed between the fixed disk 32 and the inner convex ring 61, and the return spring 5 is in a compressed state; the protective shell 6 is slidably connected to the fixed disk 32, and the protective shell 6 can slide up and down;

[0030] The limiting mechanism further includes a rotating shaft 7 and a limiting plate 8. One end of the rotating shaft 7 is inserted into one end of the protective shell 6 close to the connecting mechanism, and the other end is fixed to the limiting plate 8; the limiting plate 8 is placed on the end face of the protective shell 6 close to the connecting mechanism and outside the connecting mechanism, and is in contact with the rotating disk of the connecting structure; the rotating shaft 7 is rotatably connected to the protective shell 6; when the limiting plate 8 moves, the limiting of the rotating disk 9 can be released, and the rotating disk 9 can rotate bidirectionally;

[0031] The protective shells can slide up and down relative to each other. When the protective shells slide up and down, they can drive the rotating shaft to move in both the up and down directions. When the protective shells slide, they will compress the return spring. A torsion spring is provided on the surface of the rotating shaft, and one end of the torsion spring is fixed inside the protective shell. The rotating shaft is fixed to the limiting plate through the other end of the torsion spring. When the rotating shaft moves, it can drive the limiting plate to move at the same time. When the limiting plate moves, the limiting of the rotating disk can be released, and when the limiting plate rotates, the torsion spring on the surface of the rotating shaft can be compressed.

[0032] The limiting mechanism is used to stably fix the data collector 1 and the acquisition memory 2 together in cooperation with the connecting mechanism when the data collector 1 and the acquisition memory 2 need to be connected, and the limiting mechanism can limit the connecting mechanism to prevent loosening after the data collector 1 and the acquisition memory 2 are fixed.

[0033] The connecting mechanism includes a rotating assembly, a guiding assembly, and a reset assembly;

[0034] The rotating assembly includes a rotating disk 9 and a fixing plate 11. The rotating disk 9 is of a circular ring structure, with evenly distributed teeth formed on its outer wall and a sliding card slot 91 formed on its top; the fixing plate 11 is of a disk structure and is fixedly connected to the inner wall of the lower end of the rotating disk 9, and a limiting card slot 111 is formed on the top of the fixing plate 11;

[0035] The guiding component includes a limiting rod 10 and a moving block 12. The upper end of the limiting rod 10 is inserted into the sliding card slot 91, and the lower end is fixed to the moving block 12. A convex strip is formed at the lower end of the moving block 12, and the convex strip is inserted into the limiting card slot 111, and the moving block 12 is slidably connected to the limiting card slot 111. A sliding card slot is provided in the rotating disk 9, and the limiting rod can slide in the sliding card slot, so that the limiting rod can be slidably limited, and the limiting rod will not shift during sliding.

[0036] The moving block 12 is used to fixedly limit the position of the data collector 1. When the rotating disk 9 rotates, the rotating disk 9 can drive the limiting rod 10 to slide. When the limiting rod 10 slides, the limiting rod 10 can simultaneously drive the moving block 12 to move. And a limiting card slot 111 is provided on the surface of the fixing plate 11, and the moving block 12 can slide in the limiting card slot 111, so that the moving block 12 will not shift during sliding.

[0037] The reset component includes a fixed block 13 and a tension spring 14. One end of the tension spring 14 is fixed to the fixed block 13, and the other end is fixed to the moving block 12. The fixed block 13 is fixed to the fixing plate 11. When the tension spring 14 is in its natural state, when the moving block 12 slides, the tension spring 14 can be stretched. After the moving block 12 moves a certain distance, the tension spring 14 can release the compression pressure, drive the moving block 12 back to its original position, so that the moving block 12 can be fixedly connected to the connecting member 15. The fixed block 13 is used to fix the compression position of the tension spring 14, so that the tension spring 14 can release pressure when it reaches a certain distance.

[0038] The connecting mechanism further includes a connecting block 15 provided at the end of the data collector 1. After the rotating disk 9 rotates, the data collector 1 is placed into the upper serial connection housing 3, so that the connecting block 15 can be fixedly connected to the moving block 12 by clamping. After the connecting block 15 and the moving block 12 are fixedly connected by clamping, the serial connection housing can be reset by the compression force of the reset spring 5. After the serial connection housing is reset, the rotating disk 9 can be limited by the limiting plate 8 on one side of the serial connection housing, so as to ensure that the rotating disk 9 will not rotate in both directions. Then rotate the rotating disk 9 in the other direction, so that the connecting block 15 can be fixedly connected to the moving block 12 by clamping.

[0039] The connecting mechanism further includes a chute ring 16 fixed to the top of the rotating disk 9. A chute is formed on the top surface of the chute ring 16, and a lower convex ring 33 is formed on the bottom surface of the upper serial connection housing 3. The lower convex ring 33 is inserted into the chute of the chute ring 16, and the two are slidably connected. The chute ring 16 can ensure that when the connecting mechanism rotates, the upper serial connection housing 3 will not be affected by the rotation of the connecting mechanism.

[0040] The usage method of the present utility model:

[0041] When in use, when it is necessary to connect the ocean logging instruments in series, first slide the two protective cases up and down respectively, so that the limit plate moves with the protective case. When the limit plate moves a certain distance, the limit on the rotating disk will be released. After the limit on the rotating disk is released, rotate the rotating disk. When the rotating disk rotates, the rotating disk will drive the limit rod to move. When the limit rod moves, it will simultaneously drive the moving block to move towards the inner wall of the rotating disk. When the moving block moves, the tension spring will be stretched. After the moving block moves a certain distance, put the data collector into the series connection housing. At this time, release the rotating disk. Under the action of the restoring elastic force of the tension spring, the rotating disk can be rotated in the reverse direction, so that the moving block is inserted into the connection block, thereby making the connection block and the moving block engage and fix with each other. After the connection block and the moving block engage and fix with each other, the series connection housing can be reset by the compression force of the reset spring. After the series connection housing is reset, the rotating disk can be limited by the limit plate on one side of the series connection housing to ensure that the rotating disk will not rotate in the reverse direction.

[0042] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0043] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0044] The applicant declares that the above description is only a specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model fall within the protection scope and the disclosure scope of the present utility model.

Claims

1. A series connection device for a marine logging instrument, characterized in that: It includes an upper series-connected housing (3) sleeved outside the data collector (1) and a lower series-connected housing (4) sleeved outside the acquisition memory (2). Limiting mechanisms are sleeved outside both the upper series-connected housing (3) and the lower series-connected housing (4), and the two limiting mechanisms are arranged symmetrically in a mirror image; the upper series-connected housing (3) and the lower series-connected housing (4) are connected by a connecting mechanism.

2. The series connection device for marine logging instruments according to claim 1, characterized in that: The upper series-connected housing (3) is of a sleeve-type structure, and a number of limiting strips (31) are formed on its inner wall along the axial direction, and a fixed disk (32) is formed in the middle of its outer wall; the lower series-connected housing (4) has the same structure as the upper series-connected housing (3).

3. The series connection device for marine logging instruments according to claim 1, characterized in that: The limiting mechanism includes a return spring (5) sleeved outside the upper series-connected housing (3) or the lower series-connected housing (4) and a protective shell (6) sleeved outside the return spring (5). An inner convex ring (61) is formed inside one end of the protective shell (6) close to the connecting mechanism; the return spring (5) is placed between the fixed disk (32) and the inner convex ring (61); the protective shell (6) is slidably connected with the fixed disk (32).

4. The series connection device for marine logging instruments according to claim 1, characterized in that: The limiting mechanism further includes a rotating shaft (7) and a limiting plate (8). One end of the rotating shaft (7) is inserted into one end of the protective shell (6) close to the connecting mechanism, and the other end is fixed to the limiting plate (8); the limiting plate (8) is placed above the end face of the protective shell (6) close to the connecting mechanism, and is placed outside the connecting mechanism and contacts the rotating disk of the connecting structure; the rotating shaft (7) is rotatably connected with the protective shell (6).

5. The cascading device for marine logging instruments according to claim 1, characterized in that: The connecting mechanism includes a rotating component, a guiding component and a resetting component; The rotating component includes a rotating disk (9) and a fixing plate (11). The rotating disk (9) is of an annular structure, and evenly distributed teeth are formed on its outer wall, and a sliding card slot (91) is formed on its top; the fixing plate (11) is of a disk structure and is fixedly connected to the inner wall of the lower end of the rotating disk (9), and a limiting card slot (111) is formed on the top of the fixing plate (11); The guiding component includes a limiting rod (10) and a moving block (12). The upper end of the limiting rod (10) is inserted into the sliding card slot (91), and the lower end is fixed to the moving block (12). A convex strip is formed at the lower end of the moving block (12), and the convex strip is inserted into the limiting card slot (111), and the moving block (12) is slidably connected with the limiting card slot (111); The resetting component includes a fixed block (13) and a tension spring (14). One end of the tension spring (14) is fixed to the fixed block (13), and the other end is fixed to the moving block (12); the fixed block (13) is fixed on the fixing plate (11).

6. The series connection device for marine logging instruments according to claim 1, characterized in that: The connecting mechanism further includes a connecting block (15) arranged at the end of the data collector (1).

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