Double opening and closing portable Martindike logging device

Abstract

The present application provides a double-opening and closing portable Martindike logging device, comprising a support body, an elastic guide rail assembly, a metering wheel, a clamping wheel, a straightening wheel assembly, a photoelectric encoder and a manual opening and closing mechanism; the support body comprises an upper support body and a lower support body that can be opened and connected together in an upper and lower distribution, the support body is provided with a straightening wheel assembly that can straighten the installed cable in the height direction and the horizontal direction, the lower support body is provided with a metering wheel, one side of the metering wheel is coaxially provided with a photoelectric encoder, the upper support body is provided with a clamping wheel that cooperates with the metering wheel to press the cable inserted and installed after being straightened and guided by the straightening wheel assembly, the support body is provided with an elastic guide rail assembly that can guide and constrain the upper support body and the lower support body when opening and closing, and the upper support body is provided with a manual opening and closing mechanism. The present application can realize the rapid disassembly and assembly of the cable without disassembling the various components during use, and has strong practicality.

Description

Technical Field

[0001] The present application relates to oilfield technology, and in particular to a double-opening and closing portable Martindike device for oilfield well logging. Background Art

[0002] Depth information is a very important information in oil well logging. Depth data must correspond to the geological parameters (well inclination, lithology, porosity, etc.) measured by downhole instruments one by one to truly reflect the bottom information of oil and gas wells. Therefore, the reliability and accuracy of depth data are crucial to obtaining high-quality logging data in the later stage.

[0003] At present, the most widely used depth measurement equipment in cable logging is Martindike. During use, the Martindike metering wheel clamps the cable. Under the gravity of the downhole instrument, the cable moves and drives the metering wheel to rotate. The cable running length is obtained by the circumference of the depth wheel and the number of circles of the metering wheel, so that the descent depth of the logging instrument can be obtained in real time. Different depth information corresponds to the geological information measured by the downhole instrument at different depths (such as porosity, resistivity, well inclination, etc.). It provides reference data for the later judgment of oil and gas resources.

[0004] At present, the Martindike logging device commonly used in oil fields needs to unscrew the grating encoder connection line, remove the movable pin, lift the lower hanging body to remove it, remove the lateral guide auxiliary wheel, replace the cable, and then install the components in reverse order when disassembling the cable. The disassembly process of this cable disassembly and assembly is complicated and takes a long time to operate. It requires two people to cooperate in one disassembly process, which affects production efficiency. In addition, the disassembled components need to be accurately installed again, which has high requirements for installation. The quality of installation can easily affect the measurement results. Summary of the invention

[0005] The present application provides a double-opening and closing portable Martindike logging device, which is used to solve the problem of inconvenience in disassembling and assembling cables of the Martindike logging device in the prior art.

[0006] The present application provides a double-opening and closing portable Martindike logging device, comprising a support body, an elastic guide rail assembly, a metering wheel, a clamping wheel, a straightening wheel assembly, a photoelectric encoder and a manual opening and closing mechanism;

[0007] The support body includes the upper support body and the lower support body which can be opened and connected together in an upper and lower distribution, the support body is provided with the straightening wheel assembly which can straighten the installed cable in the height direction and the horizontal direction, the lower support body is installed with the metering wheel, one side of the metering wheel is coaxially provided with the photoelectric encoder, the upper support body is installed with the clamping wheel which cooperates with the metering wheel to clamp the cable inserted and installed after being straightened and guided by the straightening wheel assembly, the upper support body and the lower support body can move in the upper and lower directions respectively when opened and can keep the position fixed after the two are opened, the support body is provided with the elastic guide rail assembly which can guide and constrain the upper and lower support bodies when they are opened and closed, and the upper support body is installed with a manual opening and closing mechanism, and the manual opening and closing mechanism can open the space between the upper support body and the lower support body to form an operating space for cable installation and replacement when a rotation operation is performed.

[0008] In an optional embodiment, the manual opening and closing mechanism includes a handle, a rotating wheel and a fixed frame, the fixed frame is fixedly mounted on the upper support body, the rotating wheel rotatably connected to the upper support body via a rotating shaft is installed inside the fixed frame, the upper and lower ends of the fixed frame are open structures, the rotating wheel is connected to the handle that can be rotated outside the upper support body, the rotating wheel is an elliptical cam and can act on the upper support body and the lower support body in both directions up and down during rotation.

[0009] In an optional embodiment, the lower support body is hinged with a locking plate at the lower outer side at a corresponding position of the rotating wheel, and a fastening screw is threaded on the locking plate. A first screw hole that cooperates with the fastening screw is provided on the outer surface of the rotating wheel, and the first screw hole is provided on the inner side of the end point corresponding to the short axis of the rotating wheel. The rotating wheel can be connected to the locking plate through the fastening screw to keep the position fixed after the upper support body and the lower support body are closed.

[0010] In an optional embodiment, a second screw hole is further provided on the outer surface of the rotating wheel, and the second screw hole and the first screw hole are arranged circumferentially at an interval of ° on the rotating wheel, and the second screw hole is provided on the inner side of the end point corresponding to the long axis of the rotating wheel, and the rotating wheel is further provided with an arc-shaped notch at a position straightly opposite to the second screw hole, and the upper support body is provided with an arc-shaped elastic protrusion adapted to the shape of the arc-shaped notch at a corresponding position of the top end of the rotating wheel, and when the arc-shaped notch rotates to the arc-shaped elastic protrusion during rotation of the rotating wheel, the arc-shaped elastic protrusion can be squeezed and the arc-shaped elastic protrusion can be snap-connected in the arc-shaped notch.

[0011] In an optional embodiment, the elastic guide rail assembly includes two support body guide rails, two first compression springs and two second compression springs, and the two support body guide rails are symmetrically connected between the upper support body and the lower support body. Each of the support body guide rails is provided with a first compression spring and a second compression spring arranged at intervals up and down, the lower end of the first compression spring abuts against the outer side of the upper support body, and the upper end of the second compression spring abuts against the outer side of the lower support body.

[0012] In an optional embodiment, the righting wheel assembly comprises two groups of first righting wheel assemblies arranged symmetrically left and right and two groups of second righting wheel assemblies arranged symmetrically left and right, each group of the first righting wheel assemblies comprises two upper and lower righting wheels symmetrically distributed up and down and respectively installed in the upper support body and the lower support body, each group of the second righting wheel assemblies comprises two front and rear righting wheels symmetrically distributed front and back and installed in the lower support body, the two groups of the second righting wheel assemblies are located between the two groups of the first righting wheel assemblies, the metering wheel and the pressure wheel are both located between the two groups of the first righting wheel assemblies, the installed cables are successively inserted into the first righting wheel assembly and the second righting wheel assembly, and then pressed onto the metering wheel by the pressure wheel, and can drive the metering wheel to rotate when the cable moves.

[0013] In an optional embodiment, the support body guide rail is a round rod structure with a thick middle section and thin upper and lower sections, and the support body guide rail includes a first guide rod at the middle section and two second guide rods at the upper and lower ends of the first guide rod;

[0014] The first guide rod and the two second guide rods are coaxially connected as a whole, and the upper support body and the lower support body are symmetrically provided with through holes through which the second guide rod can movably pass, and the through holes on the upper support body and the lower support body correspond to each other in the vertical direction, and the upper support body and the lower support body are respectively provided with cylindrical accommodating cavities connected to the through holes at the internal positions corresponding to their respective through holes, and the other ends of the accommodating cavities of the upper support body and the lower support body respectively extend out of the upper support body and the lower support body, and the first guide rod is located in the two accommodating cavities when closed between the upper support body and the lower support body, and the two second guide rods are respectively movably passed through the outside of the through holes of the upper support body and the lower support body and are respectively penetrated by the first compression spring and the second compression spring, and the ends of the two second guide rods are respectively provided with limiting ends.

[0015] In an optional embodiment, it also includes two groups of magnetic attraction components installed symmetrically on the support body, each group of the magnetic attraction components consists of a first magnet ring and a second magnet ring with opposite magnetic surfaces, the first magnet ring is circumferentially embedded in the outer edge of the bottom opening of the accommodating cavity of the upper support body and is coaxially arranged with the accommodating cavity, and the second magnet ring is circumferentially embedded in the outer edge of the bottom opening of the accommodating cavity of the lower support body and is coaxially arranged with the accommodating cavity.

[0016] In an optional embodiment, it further includes a sliding link mechanism that cooperates with the elastic guide rail assembly;

[0017] The sliding link mechanism is in two groups, and the two groups of sliding link mechanisms are symmetrically connected to the support body, and each group of sliding link mechanisms includes a fixed guide rod, a slider, two connecting rods and two sliding sleeves. The fixed guide rod is horizontally and laterally fixedly connected to the outer side of the upper support body and is flush with the lower side of the upper support body. The fixed guide rod is provided with a horizontally arranged sliding groove and the slider is slidably connected to the sliding groove. Two connecting rods are hinged on the slider, and the other ends of the two connecting rods are respectively hinged with a sliding sleeve, and the two sliding sleeves are opposite to each other up and down and are respectively sleeved on the second guide rod, and the two sliding sleeves are respectively fixedly connected to the outer edge surfaces of the through holes of the upper support body and the lower support body, and the two sliding sleeves are respectively fixedly connected to the first compression spring and the second compression spring.

[0018] In an optional implementation, the metering wheel is coaxially provided with a mechanical encoder on a side opposite to the photoelectric encoder; and the arc-shaped elastic protrusion may be made of an elastic rubber material.

[0019] The double-opening and closing portable Martindike logging device provided by the present application adopts a support body composed of an upper support body and a lower support body that can be opened and connected together in an upper and lower distribution manner. The support body is provided with an elastic guide rail assembly that can guide and constrain the upper and lower support bodies when they are opened, and a straightening wheel assembly that can straighten the installed cable in the height direction and the horizontal direction. When using the double-opening and closing portable Martindike logging device of the present application, when replacing the cable, the individual can independently and easily use the rotation operation of the manual opening and closing mechanism to quickly realize the up and down opening and closing action between the upper support body and the lower support body. When the upper support body and the lower support body are opened, the two can be moved between them. An operating space is formed to facilitate cable installation and replacement, so that the cable can be installed and disassembled without disassembling various components, and under the guidance and constraint of the elastic guide rail assembly, the upper support body and the lower support body are restricted to move in the vertical direction, so that the upper support body and the lower support body can be accurately aligned when opening and closing, and can be quickly and accurately closed under the re-rotation operation of the manual opening and closing mechanism, thereby ensuring that the straightening wheel assembly guides and straightens the installed cable normally after closing, and ensuring that the clamping wheel cooperates well with the metering wheel in the vertical direction to clamp the cable, thereby improving the efficiency of cable replacement and the effect of the cable after installation, and providing guarantee for the accuracy of measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a structural schematic diagram of a double-opening and closing portable Martindike logging device provided in one embodiment of the present application;

[0022] Figure 2 It is a rear view of a double-opening and closing portable Martindike logging device provided in one embodiment of the present application;

[0023] Figure 3 It is a structural schematic diagram of a double-opening and closing portable Martindike logging device provided by another embodiment of the present application;

[0024] Figure 4 is a schematic structural diagram of an elastic guide rail assembly provided in one embodiment of the present application;

[0025] Figure 5 It is a structural schematic diagram of a double-opening and closing portable Martindike logging device provided by another embodiment of the present application;

[0026] Figure 6It is a structural schematic diagram of a double-opening and closing portable Martindike logging device provided in another embodiment of the present application.

[0027] In the figure, 1-metering wheel, 2-support body, 201-upper support body, 202-lower support body, 3-manual opening and closing mechanism, 301-handle, 302-rotating wheel, 303-fixed frame, 3021-first screw hole, 3022-second screw hole, 3023-arc notch, 4-elastic guide rail assembly, 401-support body guide rail, 402-first compression spring, 403-second compression spring, 5-sliding connecting rod mechanism, 501-fixed guide rod, 502-sliding block, 503-connecting rod, 504-sleeve, 6-pressure wheel, 7-righting wheel assembly, 701-first righting wheel assembly, 702-second righting wheel assembly; 8-locking plate, 801-fastening screw, 9-magnetic suction assembly, 901-first magnet ring, 902-second magnet ring, 10-photoelectric encoder, 11-mechanical encoder. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application is clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work also fall within the scope of protection of the present application.

[0029] See also Figure 1-Figure 6 The embodiment of the present application provides a double-opening and closing portable Martindike logging device, including a support body 2, an elastic guide rail assembly 4, a metering wheel 1, a clamping wheel 6, a straightening wheel assembly 7, a photoelectric encoder 10 and a manual opening and closing mechanism 3.

[0030] like Figure 1 and Figure 2As shown, the support body 2 includes an upper support body 201 and a lower support body 202 which can be opened and connected together in an upper and lower distribution. The support body 2 is provided with a straightening wheel assembly 7 which can straighten the installed cable in the height direction and the horizontal direction. The lower support body 202 is provided with a metering wheel 1, and a photoelectric encoder 10 is coaxially provided on one side of the metering wheel 1. The upper support body 201 is provided with a clamping wheel 6 which cooperates with the metering wheel 1 to clamp the cable which is inserted and installed after being straightened and guided by the straightening wheel assembly 7. The upper support body 201 and the lower support body 202 can move in the upper and lower directions respectively when opened and can keep their positions fixed after they are opened. The support body 2 is provided with an elastic guide rail assembly 4 which can guide and constrain the upper support body 201 and the lower support body 202 when they are opened and closed. The upper support body 201 is provided with a manual opening and closing mechanism 3 which can open the upper support body 201 and the lower support body 202 during the rotation operation to form an operating space for cable installation and replacement.

[0031] The double-opening and closing portable Martindike logging device provided in the embodiment of the present application adopts a support body 2 composed of an upper support body 201 and a lower support body 202 which can be opened and connected together in an upper and lower manner. The support body 2 is provided with an elastic guide rail assembly 4 which can guide and constrain the upper support body 201 and the lower support body 202 when they are opened, and a straightening wheel assembly 7 which can straighten the installed cable in the height direction and the horizontal direction. When using the double-opening and closing portable Martindike logging device of the present application to replace the cable, the individual can independently and easily utilize the rotation operation of the manual opening and closing mechanism 3 to quickly realize the upper and lower opening and closing action between the upper support body 201 and the lower support body 202. When the upper support body 201 and the lower support body 202 are opened, an operating space which is convenient for cable installation and replacement can be formed between the two, so that the cable can be disassembled and assembled without disassembling the various components.

[0032] Moreover, under the guidance constraint of the elastic guide rail assembly 4, the upper support body 201 and the lower support body 202 are restricted to move in the vertical direction, so that the upper support body 201 and the lower support body 202 can be accurately aligned when opening and closing, and can quickly achieve accurate closure under the re-rotation operation of the manual opening and closing mechanism 3, thereby ensuring the normal guidance and straightening of the installed cable by the straightening wheel assembly 7 after closing, and ensuring that the clamping wheel 6 cooperates well with the metering wheel 1 in the vertical direction to clamp the cable, thereby improving the efficiency of cable replacement and the effect of the cable after installation, and providing guarantee for the accuracy of measurement.

[0033] Since the cable length is usually several thousand meters in cable logging, it is very important to open the upper support body 201 and the lower support body 202 and accurately close the upper support body 201 and the lower support body 202 after the cable is installed without disassembling the components of the device except the old cable. Unprofessional installation or improper installation will inevitably lead to errors in the measurement process. The double-opening and closing portable Martindike logging device of the present application can install the cable without disassembling the internal components of the device, and when closed, each part can be restored to the state before the support body is opened, thereby ensuring the accuracy of subsequent measurements. Moreover, the double-opening and closing portable Martindike logging device provided by the present application has a compact structure, is relatively easy to carry, has strong practicality, and is conducive to promotion and application.

[0034] When using the double-opening and closing portable Martindike logging device provided in the embodiment of the present application to replace the cable, first rotate the manual opening and closing mechanism 3 to open the upper support body 201 and the lower support body 202. During the opening and closing process, the upper support body 201 and the lower support body 202 are constrained by the elastic guide rail assembly 4 to move in the vertical direction, so that the upper support body 201 and the lower support body 202 can be accurately aligned after the cable is replaced. After the upper support body 201 and the lower support body 202 are opened, an operating space for the operator's hand to extend is formed between the two. After the upper support body 201 and the lower support body 202 are opened to a certain extent, the two can be fixed in position, which is convenient for replacing the cable. Since the clamping wheel 6 and the metering wheel 1 are respectively installed on the upper support body 201 and the lower support body 202, the clamping wheel 6 and the metering wheel 1 are also opened after the upper support body 201 and the lower support body 202 are opened, so that the disassembly of the clamping wheel 6 or the metering wheel 1 is eliminated, so that the disassembly of the old cable and the installation of the new cable can be convenient. After the new cable is installed, the manual opening and closing mechanism 3 is rotated in the opposite direction, so that the upper support body 201 and the lower support body 202 are quickly and accurately returned to their positions under the guiding constraint of the elastic guide rail assembly 4. After the new cable is installed using the Martindike logging device of the present application, the cable logging process can be implemented. During the measurement process, the cable is always clamped between the clamping wheel 6 and the metering wheel 1. Under the gravity of the downhole instrument, the cable moves, and the movement of the cable drives the rotation of the metering wheel 1. During the rotation of the metering wheel 1, the photoelectric encoder 10 coaxial with the metering wheel 1 rotates and starts to output a pulse signal. By calculating the number of pulses, the cable movement length can be obtained.

[0035] As an optional method of the embodiment of the present application, Figure 1-Figure 3 As shown, the manual opening and closing mechanism 3 includes a handle 301 , a rotating wheel 302 and a fixed frame 303 .

[0036] Among them, the fixed frame 303 is fixedly installed on the upper support body 201, and a rotating wheel 302 is installed inside the fixed frame 303, which is rotatably connected to the upper support body 201 through a rotating shaft. The upper and lower ends of the fixed frame 303 are open structures, and the rotating wheel 302 is connected to a handle 301 that can be rotated outside the upper support body 201. The rotating wheel 302 is an elliptical cam and can act on the upper support body 201 and the lower support body 202 in both directions up and down during rotation.

[0037] The manual opening and closing mechanism 3 used in the embodiment of the present application can realize the opening and closing of the upper support body 201 and the lower support body 202 by rotating the handle 301 when in use. Figure 1 As shown, when the handle 301 is rotated 90° in one direction (such as counterclockwise) at the current position, the rotation of the handle 301 drives the rotation of the rotating wheel 302. During the rotation of the rotating wheel 302, the rotating wheel 302 acts on the upper support body 201 and the lower support body 202 in both directions up and down, respectively, so that under the restraining and guiding action of the elastic guide rail assembly 4, the upper support body 201 and the lower support body 202 are opened. During the opening process, since the rotating wheel 302 is installed on the upper support body 201, the rotating wheel 302 can easily realize the downward movement of the lower support body 202 by the force acting on the lower support body 202 during the rotation process. While the rotating wheel 302 applies force to the lower support body 202, the rotating wheel 302 is also subjected to the reaction force of the lower support body 202 on itself. Under the condition that the elastic guide rail assembly 4 exists, the rotating wheel 302 can also drive the upper support body 201 to move upward, so that the rotation of the handle 301 can realize the rapid opening and closing of the upper support body 201 and the lower support body 202, which is more efficient than moving one of the support parts in a single way, and is convenient for one person to implement the operation. When the upper support body 201 and the lower support body 202 are opened, the rotating wheel 302 itself also rotates 90°, the upper part of the rotating wheel 302 supports the upper support body 201, and the lower part is supported by the lower support body 202, so that the distance between the upper support body 201 and the lower support body 202 remains unchanged.

[0038] As an optional method of the embodiment of the present application, Figure 3As shown, the lower support body 202 is hinged with a locking plate 8 at the lower outer side of the corresponding position of the rotating wheel 302, which is used to further fix the upper support body 201 and the lower support body 202 after they are closed. In this embodiment, a fastening screw 801 is threadedly connected to the locking plate 8, and a first screw hole 3021 that is matched with the fastening screw 801 is provided on the outer surface of the rotating wheel 302. The first screw hole 3021 is provided on the inner side of the end point corresponding to the short axis of the rotating wheel 302. After the upper support body 201 and the lower support body 202 are closed, the rotating wheel 302 can be connected to the locking plate 8 through the fastening screw 801 to keep the position fixed. When the upper support body 201 and the lower support body 202 are closed, in order to more stably connect the upper support body 201 and the lower support body 202 and prevent the influence of the external environment, the locking plate 8 can be used in conjunction with the fastening screw 801 to further fix the upper support body 201 and the lower support body 202. During the connection operation, the locking plate 8 is rotated to align the fastening screw 801 on the locking plate 8 with the position of the first screw hole 3021 on the rotating wheel 302, and then the fastening screw 801 is screwed in, thereby achieving the fixed connection of the locking plate 8 to the upper support body 201 and the lower support body 202, ensuring the stability of the closure.

[0039] As an optional method of the embodiment of the present application, Figure 3 As shown, a second screw hole 3022 is further provided on the outer surface of the rotating wheel 302, and the second screw hole 3022 and the first screw hole 3021 are arranged circumferentially at an interval of 90° on the rotating wheel 302, and the second screw hole 3022 is provided on the inner side of the end point corresponding to the long axis of the rotating wheel 302, and the rotating wheel 302 is further provided with an arc-shaped notch 3023 at a position straight line opposite to the second screw hole 3022, and the upper support body 201 is provided with an arc-shaped elastic protrusion 2011 adapted to the shape of the arc-shaped notch 3023 at a corresponding position on the top end of the rotating wheel 302, and when the arc-shaped notch 3023 rotates to the arc-shaped elastic protrusion 2011 during rotation of the rotating wheel 302, the arc-shaped elastic protrusion 2011 can be squeezed and the arc-shaped elastic protrusion 2011 can be engaged and connected in the arc-shaped notch 3023.

[0040] In this embodiment, by designing an arc-shaped notch 3023 on the rotating wheel 302 and opening a second screw hole 3022, it can cooperate with the arc-shaped elastic protrusion 2011 set on the upper support body 201 and the locking plate 8 set on the lower support body 202. After opening the upper support body 201 and the lower support body 202, it can play a dual fixing role and enhance the position fixing effect of the two.

[0041] During use, on the one hand, the arc-shaped elastic protrusion 2011 can be squeezed by one end of the rotating wheel 302 having the arc-shaped notch 3023 during the rotation of the rotating wheel 302, so that the arc-shaped elastic protrusion 2011 is compressed and deformed. As the rotation process proceeds, the arc-shaped elastic protrusion 2011 can be properly inserted into the arc-shaped notch 3023, so that after the handle 301 stops rotating, the size of the opening space between the upper support body 201 and the lower support body 202 can be kept unchanged, that is, the positions of the two are fixed. This fixing method is more suitable for internal inspection of the upper support body 201 and the lower support body 202 after opening. After the inspection is completed, the handle 301 is rotated in the opposite direction, so that the arc-shaped elastic protrusion 2011 is deformed and comes out of the arc-shaped notch 3023 of the rotating wheel 302, thereby closing the device again. The snap-fit ​​connection of the arc-shaped notch 3023 and the arc-shaped elastic protrusion 2011 is adopted to realize the opening and fixing of the upper support body 201 and the lower support body 202, which can achieve a fast and efficient fixing effect and facilitate the subsequent replacement of the cable.

[0042] When the internal components of the device need to be maintained in addition to the cable replacement, the locking plate 8 can be used to further fix the device and improve the fixing effect. When the locking plate 8 is used to strengthen the fixation, first ensure that the arc-shaped elastic protrusion 2011 is completely inserted into the arc-shaped notch 3023 of the rotating wheel 302, then rotate the locking plate 8 so that the fastening screw 801 on the locking plate 8 is aligned with the second screw hole 3022, and then screw the fastening screw 801 into the second screw hole 3022 to achieve the connection between the locking plate 8 and the rotating wheel 302, so as to ensure that the upper support body 201 and the lower support body 202 are locked in a more stable relative position after opening.

[0043] As an optional method of the embodiment of the present application, the elastic guide rail assembly 4 includes two support body guide rails 401, two first compression springs 402 and two second compression springs 403. The two support body guide rails 401 are symmetrically connected between the upper support body 201 and the lower support body 202. Each support body guide rail 401 is provided with a first compression spring 402 and a second compression spring 403 arranged at intervals in an upper and lower manner. The lower end of the first compression spring 402 abuts against the outer side of the upper support body 201, and the upper end of the second compression spring 403 abuts against the outer side of the lower support body 202. The elastic guide rail assembly 4 used in the present embodiment can realize the compression deformation of the upper support body 201 and the lower support body 202 when opening through the first compression spring 402 and the second compression spring 403 of the two support body guide rails 401, so that during the closing operation, the first compression spring 402 and the second compression spring 403 have the ability to restore the original shape, so that they can rebound quickly and act on the upper support body 201 and the lower support body 202 to realize the rapid closing of the upper support body 201 and the lower support body 202. Moreover, the design of the two upper first compression springs 402 and the two lower second compression springs 403 on the support body guide rails 401 makes the action layout reasonable and the closure tight and secure. Moreover, the two support body guide rails 401 not only provide a constraint and guiding function for the movement of the upper support body 201 and the lower support body 202, but also can simultaneously limit the action direction of the compression spring.

[0044] As an optional embodiment of the present application, the righting wheel assembly 7 includes two groups of first righting wheel assemblies 701 arranged symmetrically on the left and right and two groups of second righting wheel assemblies 702 arranged symmetrically on the left and right, each group of first righting wheel assemblies 701 consists of two upper and lower righting wheels symmetrically distributed up and down and respectively installed in the upper support body 201 and the lower support body 202, each group of second righting wheel assemblies 702 consists of two front and rear righting wheels symmetrically distributed horizontally front and back and installed in the lower support body 202, the two groups of second righting wheel assemblies 702 are located between the two groups of first righting wheel assemblies 701, the metering wheel 1 and the clamping wheel 6 are both located between the two groups of first righting wheel assemblies 701, and the installed cables are successively inserted into the first righting wheel assembly 701 and the second righting wheel assembly 702, and then pressed on the metering wheel 1 by the clamping wheel 6 and can drive the metering wheel 1 to rotate when the cable moves.

[0045] The straightening wheel assembly 7 of the present application is composed of two groups of first straightening wheel assemblies 701 arranged symmetrically on the left and right and two groups of second straightening wheel assemblies 702 arranged symmetrically on the left and right, so that the installed cable can be straightened in the height direction and the horizontal direction, which is beneficial to the movement of the cable during logging and ensures the accuracy of detection. In addition, the two upper and lower straightening wheels of the first straightening wheel assembly 701 are respectively installed in the upper support body 201 and the lower support body 202, and the two front and rear straightening wheels of the second straightening wheel assembly 702 are selectively installed in the lower support body 202, so that when the upper support body 201 and the lower support body 202 are opened, the trouble of disassembling the straightening wheel assembly 7 is eliminated, so that the old cable can be quickly disassembled, thereby improving work efficiency.

[0046] As an optional method of the embodiment of the present application, Figure 4 As shown, the support body guide rail 401 is a round rod structure with a thick middle section and thin upper and lower sections. The thick middle section of the support body guide rail 401 is always between the upper support body 201 and the lower support body 202 when the support body 2 is opened or closed, and the thin upper and lower sections of the support body guide rail 401 can be used as moving guide components for the upper support body 201 and the lower support body 202 when opening and closing. Specifically, the support body guide rail 401 of the present application includes a first guide rod 4011 in the middle section and a first guide rod 4012 in the second section. There are two second guide rods 4012 at the upper and lower ends of a guide rod 4011, that is, the diameter of the first guide rod 4011 is larger than the diameter of the second guide rod 4012. In this way, when the support body guide rail 401 is used to connect the upper support body 201 and the lower support body 202, the second guide rods 4012 at the upper and lower ends of the support body guide rail 401 can be used to pass through the upper support body 201 upwards and the lower support body 202 downwards respectively, and the first guide rod 4011 will not pass through the upper support body 201 and the lower support body 202 due to the closing operation.

[0047] The first guide rod 4011 and the two second guide rods 4012 are coaxially connected in an integral manner. The upper support body 201 and the lower support body 202 are both symmetrically provided with through holes for the second guide rods 4012 to move through. The through holes on the upper support body 201 and the lower support body 202 correspond to each other in the vertical direction. The upper support body 201 and the lower support body 202 are respectively provided with cylindrical accommodating cavities connected to the through holes at the internal positions corresponding to the through holes. The other end of the accommodating cavity of the upper support body 201 and the lower support body 202 respectively extends out, the first guide rod 4011 is in the two accommodating cavities when the upper support body 201 and the lower support body 202 are closed, and the two second guide rods 4012 are movably arranged to the outside of the through holes of the upper support body 201 and the lower support body 202 and are respectively penetrated by the first compression spring 402 and the second compression spring 403, and the ends of the two second guide rods 4012 are respectively provided with limiting ends for limiting The first compression spring 402 and the second compression spring 403 slide out from the end of the second guide rod 4012. When the upper support body 201 and the lower support body 202 are opened, the first compression spring 402 and the second compression spring 403 are compressed on the second guide rod 4012 of the support body guide rail 401 as the upper support body 201 and the lower support body 202 move. Therefore, when the upper support body 201 and the lower support body 202 need to be opened, due to the existence of the first compression spring 402 and the second compression spring 403, simply relying on lifting the upper support body 201 will be quite laborious, and the opening range is also only achieved by lifting the upper support body 201. The present application cooperates with the manual opening and closing mechanism 3 and rotates the handle 301 in different directions to easily realize the opening and closing of the upper support body 201 and the lower support body 202. Moreover, during the opening operation, the upper support body 201 and the lower support body 202 can move in opposite directions, thereby improving the opening efficiency.

[0048] As an optional method of the embodiment of the present application, the double-opening and closing portable Martindike logging device provided in the embodiment of the present application also includes two groups of magnetic suction components 9 symmetrically installed on the support body 2, such as Figure 5 and Figure 6 As shown, each group of magnetic attraction components 9 is composed of a first magnet ring 901 and a second magnet ring 902 with opposite magnetic properties on opposite surfaces. The first magnet ring 901 is circumferentially embedded in the outer edge of the bottom opening of the accommodating cavity of the upper support body 201 and is coaxially arranged with the accommodating cavity, and the second magnet ring 902 is circumferentially embedded in the outer edge of the bottom opening of the accommodating cavity of the lower support body 202 and is coaxially arranged with the accommodating cavity.

[0049] The present application adds a magnetic attraction component 9 embedded in the outer edge of the bottom opening of the accommodating cavity, so that the upper support body 201 and the lower support body 202 can be tightly fitted together under the action of magnetic attraction when the support body 2 is closed, thereby avoiding the phenomenon that the support body 2 is easily opened after closing due to accidental contact with the handle 301 when the locking plate 8 and the rotating wheel 302 are not fixed. Due to the simultaneous existence of the magnetic attraction effect of the magnetic attraction component 9 and the rebound effect of the compressed compression spring when opening, in order to open the support body 2, the dual resistance of the magnetic attraction effect and the rebound effect of the compression spring must be overcome first, thereby ensuring that the support body 2 must be opened by rotating the handle 301 under the action of appropriate force. When the handle is turned to overcome this double resistance, the support body 2 can be opened. After the support body 2 is opened, as the opening amplitude gradually increases, the distance between the first magnet ring 901 and the second magnet ring 902 also increases, and the magnetic attraction gradually weakens. When closed, the distance between the first magnet ring 901 and the second magnet ring 902 gradually decreases, and the magnetic attraction gradually increases until the first magnet ring 901 and the second magnet ring 902 are attracted together. Since the first magnet ring 901 and the second magnet ring 902 are both coaxially arranged with the accommodating cavity, in the presence of the support body guide rail 401, the closing process can more easily achieve accurate alignment of the upper support body 201 and the lower support body 202.

[0050] As an optional method of the embodiment of the present application, the double-opening and closing portable Martindike logging device provided in the embodiment of the present application also includes a sliding connecting rod mechanism 5 that cooperates with the elastic guide rail assembly 4. By setting the sliding connecting rod mechanism 5, the upper support body 201 and the lower support body 202 can be more conveniently and easily synchronized to achieve movement during the opening and closing process.

[0051] Specifically, in the embodiment of the present application, the number of the sliding link mechanism 5 is two groups, and the two groups of sliding link mechanisms 5 are connected to the support body 2 symmetrically, such as Figure 6As shown, each set of sliding link mechanisms 5 includes a fixed guide rod 501, a slider 502, two connecting rods 503 and two sliding sleeves 504. The fixed guide rod 501 is horizontally and laterally fixedly connected to the outer side of the upper support body 201 and is flush with the lower side of the upper support body 201. A horizontally arranged sliding groove is provided on the fixed guide rod 501 and a slider 502 is slidably connected in the sliding groove. Two connecting rods 503 are hinged on the slider 502. The other ends of the two connecting rods 503 are respectively hinged with a sliding sleeve 504. The two sliding sleeves 504 are opposite to each other and are respectively sleeved on the second guide rod 4012. The two sliding sleeves 504 are respectively fixedly connected to the outer edge surfaces of the through holes of the upper support body 201 and the lower support body 202, and the two sliding sleeves 504 are respectively fixedly connected to the first compression spring 402 and the second compression spring 403. The present application sets up a sliding link mechanism 5. During use, both ends of the first compression spring 402 and the second compression spring 403 are restricted and cannot slide out from the second guide rod 4012. When the upper support body 201 and the lower support body 202 are opened or closed, the first compression spring 402 and the second compression spring 403 are deformed, and one end of the fixed connecting sleeve 504 moves on the second guide rod 4012. During the movement of the sliding sleeve 504, the angle between the two hinged connecting rods 503 changes, thereby driving the slider 502 to move horizontally in the sliding groove on the fixed guide rod 501. Such a sliding link mechanism 5 design can balance the relative movement of the upper support body 201 and the lower support body 202, and ensure the synchronous and equal movement of the upper support body 201 and the lower support body 202 to a large extent.

[0052] As an optional method of the embodiment of the present application, the metering wheel 1 is coaxially provided with a mechanical encoder 11 on the side opposite to the photoelectric encoder 10. The present application is provided with an additional coaxially provided mechanical encoder 11 on the basis of the photoelectric encoder 10. On the basis of the logging depth detected by the photoelectric encoder 10, the mechanical encoder 11 can be used to assist in the reference correction of the data. Among them, the arc-shaped elastic protrusion 2011 can be made of elastic rubber material, can be deformed under the action of force, and can be used repeatedly.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A double-opening and closing portable Martindike logging device, characterized in that: It comprises a support body (2), an elastic guide rail assembly (4), a metering wheel (1), a clamping wheel (6), a straightening wheel assembly (7), a photoelectric encoder (10) and a manual opening and closing mechanism (3); The support body (2) comprises an upper support body (201) and a lower support body (202) which can be opened and connected together in an upper and lower distribution. The support body (2) is provided with the straightening wheel assembly (7) which can straighten the installed cable in the height direction and the horizontal direction. The lower support body (202) is provided with the metering wheel (1). One side of the metering wheel (1) is coaxially provided with the photoelectric encoder (10). The upper support body (201) is provided with the clamping wheel (6) which cooperates with the metering wheel (1) to clamp the installed cable after being straightened and guided by the straightening wheel assembly (7). The upper support body (201) and the lower support body (202) can move in the upper and lower directions respectively when opened and can keep their positions fixed after they are opened. The support body (2) is provided with the elastic guide rail assembly (4) which can guide and constrain the upper support body (201) and the lower support body (202) when they are opened and closed. ), a manual opening and closing mechanism (3) is installed on the upper support body (201), the manual opening and closing mechanism (3) comprises a handle (301), a rotating wheel (302) and a fixed frame (303), the fixed frame (303) is fixedly installed on the upper support body (201), the rotating wheel (302) rotatably connected to the upper support body (201) via a rotating shaft is installed inside the fixed frame (303), the upper and lower ends of the fixed frame (303) are open structures, the rotating wheel (302) is connected to the handle (301) that can be rotated outside the upper support body (201), the rotating wheel (302) is an elliptical cam and can act on the upper support body (201) and the lower support body (202) in a bidirectional manner in an upward and downward direction during rotation, and the manual opening and closing mechanism (3) can open the space between the upper support body (201) and the lower support body (202) when rotating to form an operating space for cable installation and replacement; The elastic guide rail assembly (4) comprises two support body guide rails (401), two first compression springs (402) and two second compression springs (403); the two support body guide rails (401) are symmetrically connected between the upper support body (201) and the lower support body (202); each support body guide rail (401) is sleeved with a first compression spring (402) and a second compression spring (403) which are arranged in an upper and lower interval; the lower end of the first compression spring (402) is in contact with the outer side of the upper support body (201), and the upper end of the second compression spring (403) is in contact with the outer side of the lower support body (202); The righting wheel assembly (7) comprises two groups of first righting wheel assemblies (701) arranged symmetrically from left to right and two groups of second righting wheel assemblies (702) arranged symmetrically from left to right. Each group of the first righting wheel assemblies (701) comprises two upper and lower righting wheels which are symmetrically distributed up and down and respectively mounted in the upper support body (201) and the lower support body (202). Each group of the second righting wheel assemblies (702) comprises two front and rear righting wheels which are symmetrically distributed in the horizontal front and rear and mounted in the lower support body (202). The two groups of the second righting wheel assemblies (702) are located between the two groups of the first righting wheel assemblies (701). The metering wheel (1) and the pressure wheel (6) are both located between the two groups of the first righting wheel assemblies (701). The installed cables are sequentially inserted into the first righting wheel assembly (701) and the second righting wheel assembly (702) and then pressed onto the metering wheel (1) by the pressure wheel (6). The metering wheel (1) can be driven to rotate when the cables move.

2. The double-opening and closing portable Martindike logging device according to claim 1, characterized in that: The lower support body (202) is hingedly connected to a locking plate (8) at the lower outer side at a position corresponding to the rotating wheel (302); a fastening screw (801) is threadedly connected to the locking plate (8); a first screw hole (3021) matched with the fastening screw (801) is provided on the outer surface of the rotating wheel (302); the first screw hole (3021) is provided on the inner side of the end point corresponding to the short axis of the rotating wheel (302); and the rotating wheel (302) can be connected to the locking plate (8) by the fastening screw (801) to keep the position fixed after the upper support body (201) and the lower support body (202) are closed.

3. The double-opening and closing portable Martindike logging device according to claim 2, characterized in that: A second screw hole (3022) is further provided on the outer surface of the rotating wheel (302), the second screw hole (3022) and the first screw hole (3021) are arranged circumferentially on the rotating wheel (302) at an interval of 90°, and the second screw hole (3022) is provided on the inner side of an end point corresponding to the long axis of the rotating wheel (302), and the rotating wheel (302) is further provided with an arc-shaped notch (3023) at a position directly opposite to the second screw hole (3022). The upper support body (201) is provided with an arc-shaped elastic protrusion (2011) adapted to the shape of the arc-shaped notch (3023) at a position corresponding to the top end of the rotating wheel (302); when the arc-shaped notch (3023) rotates to the arc-shaped elastic protrusion (2011) during rotation, the rotating wheel (302) can squeeze the arc-shaped elastic protrusion (2011) and make the arc-shaped elastic protrusion (2011) snap-fit ​​into the arc-shaped notch (3023).

4. The double-opening and closing portable Martindike logging device according to claim 3 is characterized in that: The support body guide rail (401) is a round rod structure with a thick middle section and thin upper and lower sections. The support body guide rail (401) comprises a first guide rod (4011) located in the middle section and two second guide rods (4012) located at the upper and lower ends of the first guide rod (4011); The first guide rod (4011) and the two second guide rods (4012) are coaxially connected in an integral manner; the upper support body (201) and the lower support body (202) are both symmetrically provided with through holes through which the second guide rods (4012) can movably pass; the through holes on the upper support body (201) and the lower support body (202) correspond to each other in the vertical direction; the upper support body (201) and the lower support body (202) are respectively provided with cylindrical accommodating cavities connected to the through holes at internal positions corresponding to the respective through holes; the upper support body (201) and the lower support body (202) are respectively provided with cylindrical accommodating cavities connected to the through holes; The other end of the accommodating cavity of the upper support body (201) and the lower support body (202) respectively extends out of the upper support body (201) and the lower support body (202); the first guide rod (4011) is located in the two accommodating cavities when closed between the upper support body (201) and the lower support body (202); the two second guide rods (4012) are respectively movably arranged to penetrate the outside of the through holes of the upper support body (201) and the lower support body (202) and are respectively provided with the first clamping spring (402) and the second clamping spring (403); and the ends of the two second guide rods (4012) are respectively provided with limiting ends.

5. The double-opening and closing portable Martindike logging device according to claim 4, characterized in that: It also includes two groups of magnetic attraction components (9) symmetrically mounted on the support body (2), each group of the magnetic attraction components (9) consisting of a first magnet ring (901) and a second magnet ring (902) with opposite magnetic properties on opposite surfaces, the first magnet ring (901) being circumferentially embedded at the outer edge of the bottom opening of the accommodating cavity of the upper support body (201) and being coaxially arranged with the accommodating cavity, and the second magnet ring (902) being circumferentially embedded at the outer edge of the bottom opening of the accommodating cavity of the lower support body (202) and being coaxially arranged with the accommodating cavity.

6. The double-opening and closing portable Martindike logging device according to claim 4 or 5, characterized in that: It also includes a sliding link mechanism (5) that cooperates with the elastic guide rail assembly (4); The number of the sliding link mechanisms (5) is two groups, and the two groups of the sliding link mechanisms (5) are connected to the support body (2) symmetrically. Each group of the sliding link mechanisms (5) comprises a fixed guide rod (501), a slider (502), two connecting rods (503) and two sliding sleeves (504). The fixed guide rod (501) is horizontally and laterally fixedly connected to the outer side of the upper support body (201) and is flush with the lower side of the upper support body (201). The fixed guide rod (501) is provided with a horizontally arranged sliding groove, and the slider (503) is slidably connected in the sliding groove. 02), the slider (502) is hinged with two connecting rods (503), the other ends of the two connecting rods (503) are respectively hinged with a sliding sleeve (504), the two sliding sleeves (504) are opposite to each other and are respectively sleeved on the second guide rod (4012), the two sliding sleeves (504) are respectively fixedly connected to the outer edge surfaces of the through holes of the upper support body (201) and the lower support body (202), and the two sliding sleeves (504) are respectively fixedly connected to the first compression spring (402) and the second compression spring (403).

7. The double-opening and closing portable Martindike logging device according to claim 3, characterized in that: The metering wheel (1) is also coaxially provided with a mechanical encoder (11) on the side opposite to the photoelectric encoder (10); the arc-shaped elastic protrusion (2011) may be made of an elastic rubber material.

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