Portable field core comparison detection holder

Abstract

The invention relates to the field of rock core clamping equipment, and discloses a portable field rock core comparison detection holder which comprises a clamping box body, and a clamping platform, a fixed boss, a movable boss, two pistons, a plurality of groups of positioning shafts, a first positioning part, a second positioning part and a rotating part are arranged in the clamping box body; a plurality of positioning pins are arranged on the first connecting plate and the movable boss; the first positioning part can drive the second positioning part to synchronously adjust the position of the piston when the movable boss moves to the preset position of the rock core, and the first positioning part can also adjust the position of the positioning shaft in the process of moving the movable boss, so that each group of positioning shafts move towards the circle center direction of the adjacent clamping opening. According to the invention, stable clamping of rock cores with different lengths is realized, and detection errors of subsequent comparison are eliminated or reduced.

Description

Technical Field

[0001] The invention relates to the technical field of core clamping equipment, and in particular to a portable field core comparison and detection clamp. Background Art

[0002] In the process of geological exploration and mining, the collection and analysis of cores is an important means to understand the stratigraphic structure and mineral distribution. Usually, cores are collected from deep underground by drilling equipment, and it is an important task to compare and test core samples in field operations. Geologists obtain geological information by observing and measuring cores to analyze stratigraphic structure and historical changes, usually using instruments such as rulers, magnifying glasses, handheld microscopes and levels. At present, the use of clamping devices can ensure the stability of the core, provide accurate multi-angle measurements, and avoid errors caused by handheld operations.

[0003] However, uneven cross-section of cores is a common problem, especially when collecting core samples in the field. Due to factors such as the complexity of geological conditions, limitations of drilling equipment or lack of operator experience, the cross-section of the collected core samples may be damaged, uneven or broken.

[0004] Traditional clamps mostly use a flat clamping structure. The two clamping surfaces of the flat clamps are mostly flat surfaces. In order to maximize the area of ​​the clamping surface in contact with the end face of the core sample, it is necessary to provide greater friction and fixing force. When the end section of the core is relatively flat, the plane of the traditional clamp can fully contact the end section of the core to form a stable clamping effect. The effect is better for flat core sections, but in fact, the sections of many cores are not flat, which results in the clamping surface of the clamp and the end face of the sample not being a complete plane contact. The area of ​​the clamping surface in contact between the two is smaller than the area of ​​the end face of the core. Due to the reduction in the contact clamping area between the two, the clamping stability is reduced, and it is difficult to ensure the clamping stability of the sample during the clamping process. If the clamping is unstable, the core may move or rotate. It is time-consuming and laborious to adjust the angles of each core later, and the stability of the sample in the initial position cannot be guaranteed. Especially when multi-angle detection is required in the field, due to unstable clamping, the sample may be displaced or rotated at each adjustment, making it difficult to maintain the preset angle. The above situations make it time-consuming and laborious for the operator to adjust the different angles of the core, and there are errors in each adjustment of the angle, which leads to differences in the test results obtained by the operator each time, affecting the final comparison accuracy. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a portable field core comparison and detection clamp to solve at least one of the above-mentioned problems existing in the prior art.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A portable field core comparison and detection clamp, comprising:

[0008] A clamping box body, wherein a clamping platform is provided in the clamping box body, and a clamping opening is provided on the clamping platform;

[0009] Two fixing bosses are arranged in the clamping opening and are respectively provided with a first connecting plate and a second connecting plate; a plurality of positioning pins are arranged on the first connecting plate;

[0010] A movable boss is provided on one side of the second connecting plate, and a plurality of positioning pins are also provided on the movable boss;

[0011] Two pistons are respectively arranged on one of the fixed bosses, wherein the movement of the piston in one of the fixed bosses can compress the liquid in the fixed boss to displace the positioning needle thereon, and the movement of the piston in the other fixed boss can compress the liquid therein into the movable boss to displace the positioning needle thereon;

[0012] A plurality of groups of positioning shafts are arranged on the clamping platform, each group of the positioning shafts corresponds to adjacent clamping openings, and the spacing between two positioning shafts in each group is greater than the diameter of the core;

[0013] A first positioning component, disposed between the clamping platform and the movable boss, for moving and fixing the position of the movable boss;

[0014] A second positioning component, disposed between the clamping platform and the fixed boss, for adjusting the position of the piston to increase the pressure in the fixed boss;

[0015] A rotating component, disposed between the clamping platform and the movable boss, for synchronously rotating a plurality of movable bosses at the same angle;

[0016] Among them, the first positioning component can drive the second positioning component to synchronously adjust the position of the piston when the movable boss is pushed to move to the predetermined position of the core. The first positioning component can also adjust the position of the positioning shaft during the process of moving the movable boss, so that each group of the positioning shafts moves toward the center of the adjacent clamping openings.

[0017] Preferably, the first positioning component includes a rotating shaft rotatably connected to the clamping box body, the rotating shaft is connected to a first screw, the first screw is threadedly connected to a movable frame, the movable frame is provided with a connecting rod, one end of the connecting rod extends into the clamping opening and is rotatably connected to the movable boss.

[0018] Preferably, the connecting rod includes a first rod connected to the movable frame, a second rod is slidably connected to the first rod, the top of the second rod is rotatably connected to the movable boss, a top rod is slidably connected to the first rod, a first spring is connected between the top rod and the first rod, a top groove is formed on the second rod and matches one end of the top rod, and the end of the top rod that matches the top groove is semi-spherical.

[0019] Preferably, the second positioning component includes a connecting frame connected to the bottom of the clamping platform, the connecting frame is rotatably connected to a second lead screw, the connecting frame is slidably connected to a sliding tube threadedly connected to the second lead screw, and the piston is connected to the sliding tube.

[0020] Preferably, the second positioning portion also includes two connecting rings arranged on the rotating shaft, the two connecting rings are connected, the top of the connecting ring is connected to a cross bar, the cross bar is connected to a rack slidably connected to the connecting frame, the bottom of the second lead screw is provided with a gear meshing with the rack, one of the first rods is connected to a connecting rod, two limiting rings are connected to the connecting rod, the connecting rod is slidably connected to one of the connecting rings, the limiting rings are located on both sides of the connecting rings, and one of the limiting rings has a preset distance from the connecting ring.

[0021] Preferably, a ring body is connected to the bottom of the second screw, and a plurality of damping rods are slidably connected to the outer wall of the ring body, a second spring is connected between the damping rod and the ring body, and a plurality of damping grooves are formed on the inner wall of the gear and are sleeved on one end of the damping rod, one end of the damping rod is hemispherical, and a connecting hole plate is connected to one of the fixed bosses and the movable boss, and the positioning pin is slidably connected to the connecting hole plate.

[0022] Preferably, the first positioning portion also includes a bracket connected to the clamping platform, the bracket begins to have a slide groove, the slide groove is slidably connected to a connecting shaft, the positioning shaft is connected to the connecting shaft, the bottom of the clamping platform is connected to a fixed frame, the fixed frame is connected to a traction shaft, the traction shaft and the rotating shaft are respectively connected to reels, the reel is connected to a first rope, the first rope is connected to two second ropes, and the second rope is connected to the connecting shaft.

[0023] Preferably, a connecting plate is slidably connected to the connecting shaft, a third spring is connected between the connecting plate and the connecting shaft, the second rope passes through the connecting shaft and is connected to the connecting plate, a chain is provided between the rotating shaft and the adjacent traction shaft, and a chain is also provided between the adjacent traction shafts.

[0024] Preferably, a motor is connected inside the clamping box, and a driving shaft of the motor is connected to the rotating shaft.

[0025] Preferably, the rotating component includes an adjusting shaft rotatably connected to the clamping box body, a worm is connected to the adjusting shaft, a sleeve is connected to the second connecting plate, a connecting cylinder slidably connected to the movable boss is slidably connected in the sleeve, a spiral hose is connected between the movable boss and the second connecting plate, and a worm wheel meshing with the worm is connected to the sleeve.

[0026] Compared with the prior art, the portable field core comparison and detection clamp provided by the present invention can achieve at least one of the following beneficial effects:

[0027] 1. The clamping box is designed to be small and compact, and is particularly suitable for use in field work environments. In geological exploration and sample collection, traditional large-scale equipment is often bulky and limits the flexibility of operations, especially when working in complex terrain or remote areas. Transporting and installing these devices is not only time-consuming and labor-intensive, but may also reduce work efficiency. The clamping box of the present invention is easy to carry and can be quickly deployed and used under various terrain conditions, greatly improving the flexibility and response speed of field operations, allowing operators to clamp and detect cores more efficiently.

[0028] 2. The first positioning component of the clamp has a precise adjustment function, which can make precise displacement adjustments after the movable boss reaches the position of the core, thereby effectively fixing cores of different lengths. This design ensures that even if there are differences in the length of the core, the clamp can achieve the stability of the core clamping through precise adjustment, avoiding the occurrence of unstable clamping due to different lengths, and effectively preventing the core from shaking and causing position changes during the comparison process. This efficient clamping capability not only improves the accuracy of the operation, but also ensures the stability of the core during the clamping process, reducing the risk in the subsequent detection process.

[0029] 3. By setting up multiple positioning pins, the position of the positioning pins can be automatically adjusted during the clamping process. In view of the possible unevenness of the core surface, the positioning pins can flexibly adapt to different contact positions. This design greatly improves the stability of clamping and ensures that the positioning pins can be used to clamp and position the core even when the core surface is uneven, thereby avoiding the problem of unstable clamping and ensuring the safety and reliability of the sample during the detection process.

[0030] 4. The hydraulic system design effectively maintains the stability of the liquid during the clamping process. Even when rotating each movable boss, the liquid in the fixed boss will not decrease or increase, but will only flow in each cavity. This means that the hydraulic transmission will not be affected by the rotation action, ensuring the reliability of the clamp. After fixing the core, the operator can easily rotate each movable boss and easily realize comparative detection, thereby improving the operating efficiency.

[0031] 5. With the rotating parts, operators can synchronously rotate the various moving bosses to quickly and accurately observe and analyze the cores at different angles. This design greatly improves the efficiency of comparative testing, allowing operators to handle samples more easily, and overcomes the problem in traditional technology that when the core cross section is uneven, the contact area between the clamp and the sample may be uneven, resulting in difficulty in rotating the core and different rotation angles of the core, thereby improving the accuracy of the entire testing process and the convenience of operation.

[0032] 6. During the clamping process, the hydraulic system and the positioning pins can ensure that the core is firmly fixed in the clamping box. This stability not only effectively protects the core sample, but also prevents possible damage or deformation. During the clamping and transportation process, since the core is stably fixed in the clamping box, the stability is increased, reducing the risk of sample damage caused by bumps and vibrations, especially in field operations, where complex terrain and environmental conditions may make transportation difficult. The stable fixing design greatly reduces the probability of sample damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this specification. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0034] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 It is a schematic diagram of the structure of the clamping box body of the present invention;

[0036] Figure 3 It is a schematic diagram of the structure of the clamping platform of the present invention;

[0037] Figure 4 is another schematic diagram of the clamping platform structure of the present invention;

[0038] Figure 5 It is a schematic diagram of the rotating shaft structure of the present invention;

[0039] Figure 6 It is a schematic diagram of the connecting rod structure of the present invention;

[0040] Figure 7 yes Figure 6 A schematic diagram of the enlarged local structure at point A in the middle;

[0041] Figure 8 is another schematic diagram of the clamping platform structure of the present invention;

[0042] Fig. 9 yes Figure 8 A magnified schematic diagram of the local structure at B in the middle;

[0043] Fig.10 It is a schematic diagram of the gear structure of the present invention;

[0044] Fig.11 is another schematic diagram of the clamping platform structure of the present invention;

[0045] Fig.12 yes Fig.11 A magnified schematic diagram of the local structure at C in the middle;

[0046] Fig.13 It is a schematic diagram of the structure of the fixed boss and the movable boss of the present invention.

[0047] Reference numerals:

[0048] 100, clamping box body; 101, clamping platform; 102, clamping opening; 103, fixed boss; 104, first connecting plate; 105, second connecting plate; 106, positioning needle; 107, moving boss; 108, piston; 109, positioning shaft;

[0049] 200, rotating shaft; 201, first lead screw; 202, moving frame; 203, connecting rod; 204, first rod; 205, second rod; 206, top rod; 207, first spring; 208, top groove; 209, motor;

[0050] 300, connecting frame; 301, second lead screw; 302, sliding tube; 303, connecting ring; 304, cross bar; 305, rack; 306, gear; 307, connecting rod; 308, limit ring; 309, ring body; 310, damping rod; 311, second spring; 312, damping groove;

[0051] 400, bracket; 401, slide; 402, connecting shaft; 403, fixing frame; 404, traction shaft; 405, reel; 406, first rope; 407, second rope; 408, connecting piece; 409, third spring; 410, chain;

[0052] 500, adjusting shaft; 501, worm; 502, sleeve; 503, connecting tube; 504, spiral hose; 505, worm wheel. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] In the field, geologists observe and measure cores to obtain key geological information, which is essential for geological research, mineral exploration, and environmental assessment. Specifically, cores are physical samples of geological records. By observing the bedding, cracks, folds and other structures of the cores, geologists can identify the sedimentary order of the strata, stress direction, and changes in geological structures. This helps to reconstruct geological history and understand the impact of crustal movement on the area. During the drilling process, multiple cores represent rock strata at different depths or locations, and geological changes usually occur not only vertically, but also extend horizontally. By comparing cores from multiple locations at the same time, geologists can analyze the changes in rock strata at different depths. One of the key tasks of field core detection is to accurately measure its characteristics, such as bedding, cracks, and mineral distribution. When holding a core, it is difficult to accurately align the measuring tool. Usually, instruments such as rulers, magnifying glasses, handheld microscopes, and levels are used. Any slight movement will affect the measurement accuracy. In addition, multi-angle observation and measurement of the core is a key step in the detection. When holding the core, geologists need to constantly adjust their hand posture to achieve observation at different angles, which not only increases the complexity of the operation, but also may affect the stability of the core. However, although the existing clamping device can provide a relatively stable platform to keep the position of the core basically unchanged during the detection process, the clamping stability of the core with uneven end faces is poor, and the core may still move or rotate during the detection process.

[0055] Based on the above problems, the present invention proposes a specific embodiment, referring to Figures 1 to 13 , discloses a portable field core comparison and detection clamp, comprising:

[0056] Clamping box body 100;

[0057] A clamping platform 101 disposed in the clamping box body 100;

[0058] A clamping opening 102 is provided on the clamping platform 101, and two fixing bosses 103 are provided in the clamping opening 102, wherein a first connecting plate 104 is provided on one of the fixing bosses 103, and a second connecting plate 105 is provided on the other fixing boss 103;

[0059] A plurality of positioning pins 106 are disposed on the first connecting plate 104, and a movable boss 107 is disposed on one side of the second connecting plate 105, and a plurality of positioning pins 106 are also disposed on the movable boss 107;

[0060] The pistons 108 are arranged on the two fixed bosses 103. The piston 108 in one fixed boss 103 can move to compress the liquid in the fixed boss 103 so that the positioning pin 106 thereon can be displaced. The piston 108 in the other fixed boss 103 can move to compress the liquid therein into the movable boss 107 so that the positioning pin 106 thereon can be displaced.

[0061] A plurality of groups of positioning shafts 109 are arranged on the clamping platform 101, each group of positioning shafts 109 corresponds to adjacent clamping openings 102, and the distance between two positioning shafts 109 in each group is greater than the diameter of the core;

[0062] A first positioning component provided between the clamping platform 101 and the movable boss 107 is used to move the position of the movable boss 107. When the movable boss 107 pushes the core to the position of the fixed boss 103 and contacts it, the first positioning component can stop the movable boss 107.

[0063] A second positioning component provided between the clamping platform 101 and the fixed boss 103 is used to adjust the position of the piston 108 to increase the pressure in the fixed boss 103. When the pressure increases to a predetermined value, the second positioning component can stop the movement of the piston 108 and lock the position of the piston 108;

[0064] A rotating component disposed between the clamping platform 101 and the movable boss 107, for synchronously rotating the plurality of movable bosses 107 at the same angle;

[0065] The first positioning component can drive the second positioning component to synchronously adjust the position of the piston 108 when the movable boss 107 is pushed to move to the predetermined position of the core. The first positioning component can also adjust the position of the positioning shaft 109 during the process of moving the movable boss 107, so that each group of positioning shafts 109 moves toward the center of the adjacent clamping openings 102.

[0066] The portable field core comparison and detection clamp provided in this embodiment is integrated in a clamping box 100, which is small in size and compact in structure, and is particularly suitable for field operations. In the process of geological exploration and sampling, carrying large equipment often faces many inconveniences, especially when working in complex terrain or remote areas, and transporting and installing large equipment is time-consuming and labor-intensive.The clamping box body 100 designed in the present invention is easy to carry and can be quickly deployed and used under various terrain conditions, which greatly improves the flexibility of on-site operations. When in use, the clamping box body 100 can be opened, and the rock core to be clamped for comparative detection can be placed in the clamping opening 102. The rock core is between one of the fixed bosses 103 and the movable boss 107. When clamping, the position of the movable boss 107 can be displaced by the first positioning component to allow the positioning pin 106 on the movable boss 107 to contact the rock core. Since the lengths of the rock cores are different, the first positioning component provided for this purpose can continue to move after displacing the movable boss 107 to the position of the rock core, so as to push the rock core so that the other end of the rock core contacts the positioning pin 106 on one side of the fixed boss 103. After the needle 106 is moved, the displacement of the moving boss 107 is stopped. The advantage of this design is that even if the length of the core is different, the clamp can effectively fix the core through the precise adjustment of the first positioning component. In addition, while the first positioning component displaces the position of the moving boss 107, the arranged positioning shaft 109 can also move synchronously, and each group of two positioning shafts 109 moves toward the center of the clamping opening 102 until the positioning shaft 109 contacts the core, ensuring that when the cross section of the core is uneven, the core will not be offset due to the push of the moving boss 107, resulting in the core and the moving boss 107 or the fixed boss 103 not being concentric. This design not only ensures the stability of the core during the clamping process, but also eliminates The invention solves the difficulties that may arise when rotating the core to different angles during the subsequent comparative detection of multiple cores, further improving the accuracy of the detection and the convenience of operation. After the first positioning component displaces the core until the fixed boss 103 and the movable boss 107 clamp the core, the displacement of the movable boss 107 can be stopped, avoiding the problem that the movable boss 107 applies too much holding force and causes damage to the core. The first positioning component can drive the second positioning component to synchronously adjust the position of the piston 108 when the movable boss 107 is pushed to move to the predetermined position of the core. The upward displacement of the piston 108 can compress the liquid in the fixed boss 103. When the pressure in one of the fixed bosses 103 increases, the positioning needle 10 on the first connecting plate 104 can be moved to the fixed boss 103. 6 displacement, multiple positioning needles 106, the positioning needles 106 gradually go deeper to contact the core surface. Since the positioning needles 106 are distributed in different positions, the corresponding positioning needles 106 at the deeper groove of the cross-section can move a longer distance to contact the cross-section. Even if the core surface is uneven, the positioning needles 106 can adjust their own positions according to the surface shape to ensure the clamping stability. After the pressure in the other fixed boss 103 increases, the liquid can enter the movable boss 107, increase the pressure in the movable boss 107, and move the positioning needles 106 to clamp the cross-section of the core. This process realizes the automatic adjustment of the positioning needles 106 through the transmission of liquid pressure, avoiding the problem of unstable clamping caused by uneven core cross-section or size differences.The positioning pins 106 are distributed at multiple different angles so that they can effectively cover the entire cross-section of the core. Even if the core is uneven, each positioning pin 106 can adapt flexibly, thereby achieving all-round support and stable clamping of the core. The movable boss 107 is connected to the second connecting plate 105, and the first connecting plate 104 and the second connecting plate 105 are rotatably connected to the fixed boss 103. Even when the movable bosses 107 are rotated by the rotating components later, the liquid in the fixed boss 103 will not decrease or increase, and only flow will occur in each cavity, and the hydraulic transmission will not be affected by the rotating action. After fixing each core, the operator can use the rotating component to rotate each movable boss 107 when performing comparative testing, and each movable boss 107 can be rotated synchronously. Through the rotating component, the operator can easily rotate each movable boss 107 without worrying about the core being offset or loosened during rotation. This design greatly improves the efficiency of comparative detection, allowing operators to quickly and accurately observe and analyze cores at different angles, and solves the problem in the prior art that when the core cross-section is uneven, the area of ​​contact between the clamp and the sample becomes uneven. The reduction in contact area leads to reduced stability of clamping, making it difficult to ensure the firmness of the sample during the clamping process. In addition, the design can effectively fix the core in the box for easy transportation and storage. During the clamping process, the hydraulic system and the positioning pin 106 enable the core to be firmly fixed in the clamping box 100. This stability not only protects the core sample, but also prevents possible damage or deformation. Since the core is firmly fixed in the clamping box 100, the operator can safely transfer the clamping box 100 from one location to another, especially when working in the field, where complex terrain and environmental conditions may make transportation difficult. The stable fixed design reduces the risk of sample damage due to bumps and vibrations. After the core is tested, the sample can be quickly and safely stored in the clamping box 100, reducing the time the sample is exposed to the external environment. This feature helps to protect the integrity of the core sample and ensure accurate data in subsequent analysis and research.

[0067] As a further solution of the present invention, the first positioning component includes a rotating shaft 200 rotatably connected to the clamping box body 100, the rotating shaft 200 is connected to a first screw 201, the first screw 201 is threadedly connected to a moving frame 202, the moving frame 202 is provided with a connecting rod 203, one end of the connecting rod 203 extends into the clamping opening 102 and is rotatably connected to the moving boss 107;

[0068] By setting the rotating shaft 200, when the operator operates the rotating shaft 200, the rotation of the rotating shaft 200 drives the first screw 201 to rotate, so that the threaded movable frame 202 moves along the axial direction of the first screw 201. The movement of the movable frame 202 directly affects the position of the movable boss 107 through the connecting rod 203, so that it can be flexibly adjusted, thereby achieving the purpose of moving the movable boss 107 in the direction of the core, and pushing the other end of the core to contact the positioning pin 106 after contacting the core.

[0069] As a further solution of the present invention, the connecting rod 203 includes a first rod 204 connected to the mobile frame 202, a second rod 205 is slidably connected to the first rod 204, the top of the second rod 205 is rotatably connected to the mobile boss 107, a top rod 206 is slidably connected to the first rod 204, a first spring 207 is connected between the top rod 206 and the first rod 204, a top groove 208 adapted to one end of the top rod 206 is opened on the second rod 205, and one end of the top rod 206 adapted to the top groove 208 is semi-spherical;

[0070] By setting the first spring 207, the first spring 207 can limit the position of the push rod 206 so that it can be sleeved with a corresponding top groove 208 and generate a certain friction force. When the rotating shaft 200 and the first screw 201 rotate to allow the moving frame 202 to move linearly, the friction between the push rod 206 and the top groove 208 can allow the second rod 205 to drive the moving boss 107 to move. Specifically, for example, when one of the moving bosses 107 pushes the core to allow the core to contact the positioning pin 106 on the first connecting plate 104, the core and the moving boss 107 move to the extreme position, while the other cores are shorter and the moving boss 107 When it has not yet moved to the limit position, at this time, the movable boss 107 that has moved to the limit position no longer moves, the force of the movable frame 202 moving can overcome the force of the first spring 207, the first rod 204 is still moving, the top groove 208 touches the position of the top rod 206, the first spring 207 can be compressed, and the top rod 206 is separated from the top groove 208, that is, after one of the movable bosses 107 moves to the limit position, the movable frame 202 can continue to move, so that the other movable bosses 107 can continue to move, until all the movable bosses 107 move to the limit position, so that all the cores can be fully clamped and accurately positioned. Through the setting of the connecting rod 203 system, the linear movement of the movable frame 202 not only promotes the synchronous movement of each movable boss 107, but also ensures that each movable boss 107 can be effectively clamped in place when the core length is different. This design realizes that when the core length is different, it can be effectively clamped, ensuring that each movable boss 107 can operate flexibly in different environments. This flexibility allows operators to clamp multiple cores without having to worry about uneven clamping due to differences in core lengths, thereby improving the accuracy and efficiency of detection. In addition, during the subsequent contact clamping operation, when the movable frame 202 is reset, the friction between the top rod 206 and the top groove 208 can be used to allow multiple movable bosses 107 to move synchronously, thereby synchronously releasing all cores. Through this synchronous release mechanism, operators can quickly and safely release all cores, reducing operation time and improving work efficiency.

[0071] As a further solution of the present invention, the second positioning component includes a connecting frame 300 connected to the bottom of the clamping platform 101, the connecting frame 300 is rotatably connected to the second lead screw 301, the connecting frame 300 is slidably connected to a sliding tube 302 threadedly connected to the second lead screw 301, and the piston 108 is connected to the sliding tube 302;

[0072] By setting the second lead screw 301, the piston 108 can be precisely controlled and adjusted in position. Specifically, the second lead screw 301 on the connecting frame 300 drives the sliding tube 302 to move along its thread direction by rotation, so that the piston 108 moves up and down accordingly. After all the movable bosses 107 are moved to the limit position, the multiple second lead screws 301 on the connecting frame 300 can be rotated synchronously to allow the piston 108 to move synchronously, and at the same time, the fixed boss 103 is pressurized, which not only effectively compresses the liquid in the fixed boss 103, but also can use the lead screw to self-lock the position of the piston 108 during the non-rotation period, ensuring the stability and safety of the piston 108 during operation. This self-locking mechanism prevents the piston 108 from accidentally moving due to external forces when the lead screw is not actively operated, thereby ensuring the safety and stability of the core in the clamping state, and avoiding the problem of unstable clamping force caused by the slight floating of the piston 108 due to the flow of liquid when the movable boss 107 is rotated later.

[0073] As a further solution of the present invention, the second positioning portion also includes two connecting rings 303 arranged on the rotating shaft 200, the two connecting rings 303 are connected, the top of the connecting ring 303 is connected to a cross bar 304, the cross bar 304 is connected to a rack 305 slidably connected to the connecting frame 300, the bottom of the second lead screw 301 is provided with a gear 306 meshing with the rack 305, one of the first rods 204 is connected to a connecting rod 307, the connecting rod 307 is connected to two limiting rings 308, the connecting rod 307 is slidably connected to one of the connecting rings 303, the limiting rings 308 are located on both sides of the connecting rings 303, and one of the limiting rings 308 has a preset distance with the connecting ring 303;

[0074] By setting the connecting rod 307, in the initial state, a limiting ring 308 on the connecting rod 307 has a preset distance with the connecting ring 303. When the movable frame 202 displaces the movable boss 107 through the first rod 204 and the second rod 205, the connecting rod 307 moves following one of the first rods 204. At this time, one of the limiting rings 308 moves away from the connecting ring 303, and one of the limiting rings 308 moves close to the connecting ring 303. When the movable frame 202 moves to make all the movable bosses 107 move to the extreme position, the limiting ring 308 on the connecting rod 307 contacts the connecting ring 303. When the movable frame 202 continues to move, the connecting ring 303 can be displaced by the connecting rod 307 and the limiting ring 308. The displacement of the connecting ring 303 can drive the rack 305 to move to the limit position through the cross bar 304. The gear 306 rotates to drive the second lead screw 301 to rotate, so that all the pistons 108 move upward synchronously. This design ensures that after all the moving bosses 107 are displaced to push the core to the limit position, the piston 108 is displaced to clamp and fix the cross section of the core. The piston 108 will not move in advance, resulting in unnecessary displacement, which will cause the positioning needle 106 to be unable to fully release the cross section of the core. This design can effectively avoid errors in the clamping process and ensure that the cross section of the core is accurately and stably clamped on the clamping platform 101, providing reliable guarantee for subsequent comparative detection. Through this series of dynamic control, the equipment achieves compatibility with different core cross-section shapes and sizes, allowing operators to more flexibly respond to the processing needs of various geological samples.

[0075] As a further solution of the present invention, a ring body 309 is connected to the bottom of the second lead screw 301, and a plurality of damping rods 310 are slidably connected to the outer wall of the ring body 309, and a second spring 311 is connected between the damping rod 310 and the ring body 309. A plurality of damping grooves 312 are provided on the inner wall of the gear 306 and sleeved with one end of the damping rod 310. One end of the damping rod 310 is semi-spherical, and a connecting hole plate 313 is connected to one of the fixed bosses 103 and the movable boss 107, and the positioning pin 106 is slidably connected to the connecting hole plate 313;

[0076] By setting the second spring 311, the second spring 311 can limit the position of the damping rod 310 and can make it sleeved with a corresponding damping groove 312. When the gear 306 rotates, the friction between the damping groove 312 and the damping rod 310 can be used to rotate the ring body 309 and the second lead screw 301. When all the gears 306 and the second lead screw 301 rotate synchronously to allow the piston 108 to move upward synchronously, if one of the pistons 108 presses the liquid in the fixed boss 103 to the limit, the upward movement of the piston 108 is restricted, and the rotation resistance of the second lead screw 301 is greater than the friction between the damping rod 310 and the damping groove 312. At this time, the friction between the second lead screw 301 and the damping groove 312 can be overcome. The force of the second spring 311 causes the damping rod 310 to shrink and disengage from the damping groove 312, that is, the gear 306 can idle outside the ring body 309, no longer affecting the angle of the second screw rod and the position of the piston 108. When the other pistons 108 have not yet moved to the limit position, the other second screws 301 can continue to rotate to ensure that the liquid in all fixed bosses 103 is compressed, so that the positioning needle 106 can fully squeeze the core section, thereby achieving accurate positioning and clamping of the core. By ensuring that each piston 108 applies pressure evenly when processing the core, and using the second spring 311, the deformation or damage of the core caused by excessive force can be effectively avoided. This design not only enhances the operational flexibility of the equipment, but also improves the reliability and safety of the core sample during the clamping process.

[0077] As a further solution of the present invention, the first positioning part also includes a bracket 400 connected to the clamping platform 101, a slide groove 401 is provided on the bracket 400, a connecting shaft 402 is slidably connected to the slide groove 401, the positioning shaft 109 is connected to the connecting shaft 402, a fixing frame 403 is connected to the bottom of the clamping platform 101, a traction shaft 404 is connected to the fixing frame 403, a reel 405 is connected to the traction shaft 404 and the rotating shaft 200 respectively, a first rope 406 is connected to the reel 405, two second ropes 407 are connected to the first rope 406, and the second rope 407 is connected to the connecting shaft 402;

[0078] By setting the reel 405, when the rotating shaft 200 rotates to displace the movable boss 107 through the first screw 201, the movable frame 202, the first rod 204 and the second rod 205, the multiple traction shafts 404 are rotated synchronously, and the rotating shaft 200 and the reel 405 on the traction shaft 404 can rotate to reel in the first rope 406. When the first rope 406 is reeled in, the position of the connecting shaft 402 can be pulled by the second rope 407. The connecting shaft 402 moves along the slide groove 401, which can move the positioning shaft 109 toward the center of the clamping opening 102, ensuring that the positioning shaft 109 has been pre-adjusted to the optimal position before the core is pushed to the extreme position by the movable boss 107, ensuring that when the positioning needle 106 presses the cross section of the core later, it will not be due to the uneven cross section. In addition, in the initial state, the spacing between each group of two positioning shafts 109 is greater than the core diameter, which makes it convenient for operators to put the core into the clamping opening 102 through each group of positioning shafts 109. Even after the positioning shafts 109 are displaced, there is a certain spacing between each group of two positioning shafts 109, which ensures that a part of the outer wall of the core is always exposed. When the movable boss 107 and the core are rotated by the rotating component later, it will not affect the operator's comparative detection and observation of the core surface. Through this optimized design, the overall structure of the first positioning part not only improves the accuracy of clamping, but also enhances the operator's operating experience and promotes an efficient core processing process.

[0079] As a further solution of the present invention, a connecting piece 408 is slidably connected to the connecting shaft 402, a third spring 409 is connected between the connecting piece 408 and the connecting shaft 402, a second rope 407 passes through the connecting shaft 402 and is connected to the connecting piece 408, a chain 410 is provided between the rotating shaft 200 and the adjacent traction shaft 404, and a chain 410 is also provided between the adjacent traction shafts 404;

[0080] By setting the third spring 409, when the traction shaft 404 rotates to form traction through the first rope 406 and the second rope 407, the connecting piece 408 can be pulled, and the connecting shaft 402 can be displaced by the third spring 409. After the positioning shaft 109 contacts the outer surface of the core, and the rotating shaft 200 continues to rotate, the connecting piece 408 can be displaced on the connecting shaft 402, compressing the third spring 409, providing the condition for the rotating shaft 200 to continue to rotate, and the force of the third spring 409 can also be used to allow the positioning shaft 109 to press the core, further ensuring that the core can be stably clamped in a predetermined position. This pressure gradually increases with the rotation of the rotating shaft 200. While compressing the third spring 409, the positioning shaft 109 will not apply excessive instantaneous impact force to the core, but will achieve a soft clamping process through the buffering effect of the spring, thereby avoiding damage to the core due to uneven force or excessive extrusion.

[0081] As a further solution of the present invention, a motor 209 is connected inside the clamping box body 100, and a driving shaft of the motor 209 is connected to the rotating shaft 200;

[0082] By setting the motor 209, the driving force of the motor 209 can directly drive the rotating shaft 200 to rotate, thereby realizing precise power transmission and control. At the same time, through the speed regulation function of the motor 209, the rotation speed of the rotating shaft 200 can be adjusted according to actual needs to adapt to the requirements of different working conditions. In addition, the motor 209 can be set as a motor 209 with an electromagnetic brake function. When the motor 209 is powered off or stops running, the electromagnetic brake can automatically lock the rotating shaft 200 to prevent the rotating shaft 200 from continuing to rotate or shifting due to inertia, thereby ensuring the stability and safety of the system in the stopped working state, and ensuring the operation accuracy and working effect.

[0083] As a further solution of the present invention, the rotating component includes an adjusting shaft 500 rotatably connected to the clamping box body 100, a worm 501 is connected to the adjusting shaft 500, a sleeve 502 is connected to the second connecting plate 105, a connecting cylinder 503 slidably connected to the moving boss 107 is slidably connected in the sleeve 502, a spiral hose 504 is connected between the moving boss 107 and the second connecting plate 105, and a worm wheel 505 meshing with the worm 501 is connected to the sleeve 502;

[0084] By setting the spiral hose 504, the setting of the spiral hose 504 can be selected as a steel wire reinforced hose, which ensures that the movable boss 107 can also transport liquid into the movable boss 107 after moving, and will not be deformed due to the liquid pressure. Even when the liquid is pressurized, the diameter of the spiral hose 504 can remain stable. In addition, by setting the mechanism of the worm wheel 505 and the worm 501, the rotating component can effectively control the rotation of the movable boss 107. Specifically, the worm 501 is driven to rotate by the adjustment shaft 500, and the worm wheel 505 is connected to the sleeve 502, so that the rotation of the worm 501 directly drives the rotation of the worm wheel 505. The connection between the worm wheel 505 and the sleeve 502 ensures the transmission of the rotation, thereby achieving the purpose of making multiple movable bosses 107 rotate synchronously with the core. The advantage of this design is that by controlling the rotation speed and direction of the worm 501, the relative movement between the movable boss 107 and the core can be accurately adjusted. This allows the movable boss 107 to rotate smoothly along the surface of the core during comparative testing. During comparative testing, the rotation of the movable boss 107 exposes the surface features of the core one by one. This synchronous rotation mechanism not only improves the comprehensiveness of the detection, but also effectively reduces errors caused by unstable movement.

[0085] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable field core comparison and detection clamp, characterized in that: include: A clamping box body, wherein a clamping platform is provided in the clamping box body, and a clamping opening is provided on the clamping platform; Two fixing bosses are arranged in the clamping opening and are respectively provided with a first connecting plate and a second connecting plate; a plurality of positioning pins are arranged on the first connecting plate; A movable boss is provided on one side of the second connecting plate, and a plurality of positioning pins are also provided on the movable boss; Two pistons are respectively arranged on one of the fixed bosses, wherein the movement of the piston in one of the fixed bosses can compress the liquid in the fixed boss to displace the positioning needle thereon, and the movement of the piston in the other fixed boss can compress the liquid therein into the movable boss to displace the positioning needle thereon; A plurality of groups of positioning shafts are arranged on the clamping platform, each group of the positioning shafts corresponds to adjacent clamping openings, and the spacing between two positioning shafts in each group is greater than the diameter of the core; A first positioning component, disposed between the clamping platform and the movable boss, for moving and fixing the position of the movable boss; A second positioning component, disposed between the clamping platform and the fixed boss, for adjusting the position of the piston to increase the pressure in the fixed boss; A rotating component, disposed between the clamping platform and the movable boss, for synchronously rotating a plurality of movable bosses at the same angle; Among them, the first positioning component can drive the second positioning component to synchronously adjust the position of the piston when the movable boss moves to the predetermined position of the core. The first positioning component can also adjust the position of the positioning shaft during the process of moving the movable boss, so that each group of the positioning shafts moves toward the center of the adjacent clamping openings.

2. A portable field core comparison and detection clamp according to claim 1, characterized in that: The first positioning component includes a rotating shaft rotatably connected to the clamping box body, the rotating shaft is connected to a first screw, the first screw is threadedly connected to a moving frame, the moving frame is provided with a connecting rod, one end of the connecting rod extends into the clamping opening and is rotatably connected to the moving boss.

3. A portable field core comparison and detection clamp according to claim 2, characterized in that: The connecting rod includes a first rod connected to the movable frame, a second rod is slidably connected to the first rod, the top of the second rod is rotatably connected to the movable boss, a push rod is slidably connected to the first rod, a first spring is connected between the push rod and the first rod, a top groove is provided on the second rod to match one end of the push rod, and the end of the push rod that matches the top groove is semi-spherical.

4. A portable field core comparison and detection clamp according to claim 3, characterized in that: The second positioning component includes a connecting frame connected to the bottom of the clamping platform, the connecting frame is rotatably connected to a second lead screw, the connecting frame is slidably connected to a sliding tube threadedly connected to the second lead screw, and the piston is connected to the sliding tube.

5. A portable field core comparison and detection clamp according to claim 4, characterized in that: The second positioning portion also includes two connecting rings arranged on the rotating shaft, the two connecting rings are connected, the top of the connecting ring is connected to a cross bar, the cross bar is connected to a rack slidably connected to the connecting frame, the bottom of the second lead screw is provided with a gear meshing with the rack, one of the first rods is connected to a connecting rod, two limiting rings are connected to the connecting rod, the connecting rod is slidably connected to one of the connecting rings, the limiting rings are located on both sides of the connecting rings, and one of the limiting rings has a preset distance from the connecting ring.

6. A portable field core comparison and detection clamp according to claim 5, characterized in that: The bottom of the second lead screw is connected to a ring body, and the outer wall of the ring body is slidably connected to a plurality of damping rods, a second spring is connected between the damping rod and the ring body, and the inner wall of the gear is provided with a plurality of damping grooves which are sleeved on one end of the damping rod, one end of the damping rod is semi-spherical, and a connecting hole plate is connected in one of the fixed bosses and the movable boss, and the positioning pin is slidably connected in the connecting hole plate.

7. A portable field core comparison and detection clamp according to claim 2, characterized in that: The first positioning part also includes a bracket connected to the clamping platform, the bracket begins to have a slide groove, the slide groove is slidably connected to a connecting shaft, the positioning shaft is connected to the connecting shaft, the bottom of the clamping platform is connected to a fixed frame, the fixed frame is connected to a traction shaft, the traction shaft and the rotating shaft are respectively connected to a reel, the reel is connected to a first rope, the first rope is connected to two second ropes, and the second rope is connected to the connecting shaft.

8. A portable field core comparison and detection clamp according to claim 7, characterized in that: A connecting plate is slidably connected to the connecting shaft, a third spring is connected between the connecting plate and the connecting shaft, the second rope passes through the connecting shaft and is connected to the connecting plate, a chain is provided between the rotating shaft and the adjacent traction shaft, and a chain is also provided between the adjacent traction shafts.

9. A portable field core comparison and detection holder according to claim 2, characterized in that: A motor is connected inside the clamping box, and a driving shaft of the motor is connected to the rotating shaft.

10. The portable field core comparison and detection clamp according to claim 1, characterized in that: The rotating component includes an adjusting shaft rotatably connected to the clamping box body, a worm connected to the adjusting shaft, a sleeve connected to the second connecting plate, a connecting cylinder slidably connected to the movable boss in the sleeve, a spiral hose is connected between the movable boss and the second connecting plate, and a worm wheel meshing with the worm is connected to the sleeve.

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