Portable manual axial rock core sample separating device

Abstract

The utility model discloses a portable manual axial rock core sample separating device, and belongs to the technical field of geological exploration. The rock core clamping device comprises a base module main body, two clamping parts are arranged on the base module main body, do opposite movement or reverse movement along the base module main body and are used for clamping or loosening a rock core, the two clamping parts are respectively connected with a lead screw assembly, and the lead screw assemblies are rotated to drive the clamping parts to move; a cutting groove is formed in the base module main body; a stand column with a lifting track is arranged on one side of the supporting module, and a lifting linkage shaft is arranged at one end of the cross beam rocker arm and is in meshed connection with the lifting track through a gear. The other end of the beam rocker arm is fixedly connected with a track beam; the connecting device is in sliding connection with the rail cross beam, the other end of the reciprocating grab handle is pushed to drive the cutting module to do reciprocating linear motion for cutting, and the cutting target that rock cores with different diameters and different hardness are rapidly divided into two parts is achieved.

Description

Technical Field

[0001] The utility model relates to a portable manual axial core sampling device, belonging to the technical field of geological exploration. Background Art

[0002] When collecting core samples, there is often a contradiction between core protection and core collection. Collecting samples is a prerequisite for scientific analysis. At the same time, protecting the intact core can provide support for more scientific research and is the basis for achieving "one thing for multiple uses". The contradiction between collecting samples and protecting cores often makes it difficult for researchers to make a choice.

[0003] At present, there is no equipment that can be used to split the core in two along the longitudinal axis at the drilling site to solve the contradiction between collecting samples and protecting the core samples. In order to achieve the goal of conducting current geological research to solve current scientific problems and better protecting the core to provide support for later research, this device is specially designed. This device can split the core in two along the longitudinal axis at the drilling site, and the cutting position is accurate. It can be flexibly adjusted according to research needs, one for sample collection and one for preservation. This treatment can well solve this contradiction and provide support for geological research.

[0004] The prior art provides power for cutting cores by manual rotation, and uses a long strip cutter as a cutting tool. Patents for cutting cores include utility model patents, a spiral core splitting machine, application number 201820656648.8; and utility model patents, a core splitting machine for geological exploration, application number: 202120264254.X;

[0005] The applicability of the existing patents for cutting cores by moving the core, fixing the tool, and rotating the tool, as well as the patents for clamping the core with a fixed diameter, will be limited. For example, in the process of cutting the core, the cutting position is not easy to control, and the cutting size is prone to deviation, such as the patent: Core splitting device, application number: 202320358614.1; some patents have designed a clamping device, but the diameter of the clamped core is fixed, and cores of different diameters cannot be cut, which limits the applicability of such patents to a certain extent, and this patent can only be used to cut the core perpendicular to the axis, and the core cannot be cut along the axis, such as the patent: A core splitting machine for geological drilling, application number 202122443279.9.

[0006] The existing technology provides the power for cutting the core by manual rotation, and uses a long strip cutter as a cutting tool to cut the core. However, due to the limitation of manual operation, the cutting force is limited, and when encountering a harder core, the core may not be cut. Secondly, the axial cutting position cannot be adjusted for cutting cores of different diameters.

[0007] In summary, the existing technology cannot achieve the goal of quickly splitting cores of different diameters and different lithology into two, and cannot select the axial cutting position to split the core according to the research purpose. Utility Model Content

[0008] The utility model aims to overcome the shortcomings of the prior art and provide a portable manual axial core splitting device to achieve the goal of quickly splitting cores of different diameters and different hardnesses into two;

[0009] In order to achieve the above purpose / solve the above technical problems, the utility model is implemented by adopting the following technical solutions:

[0010] Portable manual axial core splitting device, including:

[0011] The base module comprises a base module body, on which two clamping parts are provided for clamping or releasing the core and moving toward or in the opposite direction along the base module body, and each of the two clamping parts is connected with a lead screw assembly, and the lead screw assembly is rotated to drive the clamping parts to move; and a cutting groove is provided on the base module body;

[0012] The support module comprises a column with a lifting track on one side, the column is connected to a beam rocker arm, one end of the beam rocker arm is provided with a lifting linkage shaft, the lifting linkage shaft is equipped with a rocker handle, and the lifting linkage shaft is meshed and connected with the lifting track through a gear; the other end of the beam rocker arm is fixedly connected to the track beam;

[0013] The cutting module includes a connecting device and a reciprocating handle. The connecting device is slidably connected to the track beam. One end of the reciprocating handle is connected to the top of the cutting module. The cutting module is driven to perform reciprocating linear motion by pushing the other end of the reciprocating handle. A cutting motor is provided on the connecting device, and a cutting tool is provided at the output end of the cutting motor.

[0014] Optionally, the bottom of the clamping component is a dovetail groove, and the base module body is provided with a dovetail that matches the dovetail groove.

[0015] Optionally, the screw assembly includes a screw and a crank, the clamping component is provided with a screw front compartment for accommodating the screw stroke, the base module body is provided with a screw rear compartment for accommodating the screw stroke, the screw is connected to the screw front compartment via a thread, and is connected to the screw rear compartment via a bearing, and the end of the screw is connected to the crank.

[0016] Optionally, the upper part of the column is a circular cylinder, the lower part is plugged into the base module body and fastened by fixing bolts, and the lower plug-in part is a square cylinder, and the upper circular cylinder of the column and the beam rocker arm are locked by a cylindrical lock.

[0017] Optionally, a cooling device for cooling the cutting tool is provided on the top of the crossbeam rocker arm.

[0018] Optionally, the cooling device includes a cooling lubricating liquid bottle installed on the upper part of the crossbeam rocker arm, and the cooling lubricating liquid bottle transports the cooling liquid to the cutting tool through a cooling lubricating liquid conduit.

[0019] Optionally, a triangular support plate is provided below the crossbeam rocker arm, and one side of the triangular support plate is slidably connected to the column.

[0020] Optionally, a tool guard is provided on the periphery of the cutting tool.

[0021] Optionally, two sides of the cutting groove are arc-shaped.

[0022] Optionally, the cutting tool is circular.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] 1. The utility model is to fix the core, rotate and move the tool to achieve cutting. The core is fixed on the base, and the tool moves along the designed route to split the core into two. In this design, the core is clamped, which can well protect the operator during the cutting process. In addition, relying on the support module, the cutting position can be flexibly adjusted according to research needs, thereby achieving different research purposes. The existing technology is mostly to fix the cutting tool and move the core to achieve cutting. In this design, the core is not clamped, and there is a certain danger to the operator during the cutting process;

[0025] 2. The utility model is provided with two clamping parts, which can conveniently clamp cores of different diameters, thereby segmenting cores of different diameters, and has wide applicability; at the same time, by adjusting the position of the holding parts, the cutting line position can be flexibly adjusted according to different research purposes;

[0026] 3. The utility model adopts a disc rotating cutter and drives the core through a motor. On the one hand, it solves the problem that the core may not be cut when encountering a harder core in the prior art. On the other hand, the cut edge is flat, smooth, and has no unevenness, which is conducive to observing the cross section, transporting the core, and preserving the core. At the same time, the utility model uses a cooling lubricant to cool the cutter and lubricate the cut during the cutting process. No splashing rock chips will be generated during the cutting process, which is safer and more efficient for the operator.

[0027] 4. The utility model adopts a modular structure, and each structure is convenient to combine and can be quickly assembled at the drilling site. It is easy to carry and simple to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The figure shows a front view of an embodiment of the splitting device of the utility model;

[0029] Figure 2 The figure is a top view of an embodiment of the splitting device of the utility model;

[0030] Figure 3 The figure shows a left view of an embodiment of the splitting device of the utility model;

[0031] Figure 4 Shown is the utility model Figure 1 Middle AA′ section view;

[0032] Figure 5 Shown is the front view of the track beam and cutting tool of the utility model;

[0033] Figure 6 Shown is the utility model Figure 5 Middle BB′ section view;

[0034] Figure 7 The figure shows a top view of the track beam and cutting tool of the utility model;

[0035] Figure 8 The figure shows the left side view of the track beam and cutting tool of the utility model;

[0036] In the figure: base module body 1-1, clamping part one 1-2, clamping part two 1-3, screw front compartment 1-4, 1-6, screw rear compartment 1-5, 1-7, screw assembly one 1-8, screw assembly two 1-9, dovetail grooves 1-10, 1-11, cutting groove 1-12, column 2-1, crossbeam rocker arm 2-2, triangular support plate 2-3, rocker handle 2-4, track crossbeam 2-5, cooling lubricant bottle 2-6, cooling lubricant conduit 2-7, fixing bolt 2-8, connecting device 3-1, cutting motor 3-2, cutting tool 3-3, tool guard plate 3-4, reciprocating handle 3-5. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0038] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0040] like Figure 1-Figure 8 As shown, the portable manual axial core sampling device comprises:

[0041] The base module 1 comprises a base module body 1-1, on which two clamping parts 1-2 or clamping parts 1-3 are provided for clamping or releasing the core by moving toward or in the opposite direction along the base module body 1-1, the clamping part 1-2 is connected with a lead screw assembly 1-8, and the clamping part 1-3 is connected with a lead screw assembly 1-9, and the clamping parts are driven to move by rotating the lead screw assembly; the base module body 1-1 is provided with a cutting groove 1-12;

[0042] The support module 2 includes a column 2-1 with a lifting track on one side, the column 2-1 is provided with a beam rocker arm 2-2, one end of the beam rocker arm 2-2 is provided with a lifting linkage shaft, the lifting linkage shaft is equipped with a crank 2-4, and the lifting linkage shaft is meshed and connected with the lifting track through a gear; the lifting linkage shaft is driven to rotate by the crank 2-4 to raise or lower the beam rocker arm 2-2, and when the cutting position is reached, the upper circular column of the column and the beam rocker arm are locked by the cylinder; the other end of the beam rocker arm 2-2 is fixedly connected to the track beam 2-5;

[0043] The cutting module 3 includes a connecting device 3-1 and a reciprocating handle 3-5. The connecting device 3-1 is slidably connected to the track beam 2-5. One end of the reciprocating handle 3-5 is connected to the top of the cutting module 3. The cutting module 3 is driven to perform reciprocating linear motion by pushing the other end of the reciprocating handle 3-5. A cutting motor 3-2 is provided on the connecting device 3-1. A cutting tool 3-3 is provided at the output end of the cutting motor 3-2. The reciprocating handle is a component for driving the cutting module to perform reciprocating linear motion. The operator holds the reciprocating handle tightly and drives the cutting module to perform reciprocating linear motion by pushing the handle to perform linear motion.

[0044] In this embodiment, the specific structure of the base module 1 is as follows:

[0045] The base module body 1-1 is the main part of the base module 1. Other components are based on it and distributed on its upper part. It is also the main component for holding the core.

[0046] Clamping component 1-2 and clamping component 2 1-3, clamping component 1 and clamping component 2 are located on the upper part of the base module, and the bottom is connected to the main body of the base module with a dovetail groove structure. Clamping component 1 and clamping component 2 are the main components for holding the core. The two move toward or in the opposite direction along the dovetail groove to achieve the purpose of clamping or loosening the core. Relying on the mobility of the holding component, the position of the core can be flexibly adjusted according to research needs, thereby achieving the goal of adjusting the position of the incision and achieving flexible cutting of the core.

[0047] The screw front compartment 1-4 and the screw front compartment 1-6 are located on the upper part of the clamping part 1 and the clamping part 2, and are the space for the screw to be installed and move. There are support surfaces on the front and rear sides of the screw front compartment. A hole is designed on one side of the support surface for passing the screw, and a thread is designed in the hole, which matches the thread on the screw.

[0048] The screw rear compartment 1-5 and the screw rear compartment 1-7 are located on the upper part of the base module body 1-1 and are the space for the screw to be installed and move. There are support surfaces on the front and rear sides of the screw rear compartment. A hole is designed on the support surface for passing the screw. A bearing is designed in the hole. The screw and the rear compartment support surface are connected by a bearing.

[0049] The lead screw assembly 1-8 and the lead screw assembly 2-9 are located on both sides of the base module body 1-1 and are composed of a lead screw and a crank. The crank is located at one end of the lead screw. The lead screw is connected to the front compartment through a thread and connected to the rear compartment through a bearing. The lead screw is driven to move by rotating the crank. The thread rotation converts the rotational motion into the linear motion of the clamping component, thereby driving the clamping component 1 and the clamping component 2 to perform a clamping or loosening action.

[0050] Dovetail groove 1-10 and dovetail groove 1-11, the dovetail groove is located at the lower part of clamping part 1 and clamping part 2, and is fixedly connected to clamping part 1 and clamping part 2. It is the main structure connecting the supporting part and the lower base module body. The base module body is also designed with corresponding dovetails to stably connect the supporting part and the base module.

[0051] The cutting groove 1-12 is a cutting space reserved for the cutting tool when the cutting tool cuts the core. When the cutting tool cuts through the core, the cutting tool will pass through the core. The cutting groove is designed to protect the cutting tool and the base module body 1-1. The two sides of the cutting groove are designed to be arc-shaped to facilitate the placement and positioning of the core.

[0052] When in use, the position of the holding component is adjusted by rotating the crank handle to drive the lead screw to rotate, thereby driving the holding component to move in a straight line. If the cutting line is on the left side of the axis, first rotate the crank handle to move the right clamping component to the left, and then rotate the other side crank handle to move the left holding component to clamp the core; if the cutting line is on the right side of the core axis, operate in the opposite order.

[0053] In one embodiment, Figure 1-Figure 8 As shown, the structure of the support module 2 and the matching relationship with the base module 1 in this embodiment are described in detail:

[0054] The supporting module mainly includes a column 2-1, a beam rocker arm 2-2, a triangular supporting plate 2-3, a lifting linkage shaft and a rocker handle 2-4, a track beam 2-5, and a fixing bolt 2-8.

[0055] The column 2-1 is the main component supporting the crossbeam rocker arm 2-2. The upper part of the column is a round column, and the lower plug-in part is a square column. The upper round column is connected to the crossbeam rocker arm 2-2 by a round locking method. The square column part below the column is plugged into the base module body 1-1. The outside of the base module body is designed with fixing bolts 2-8 for fastening the plugged column. A lifting track is designed on one side of the column for raising and lowering the crossbeam rocker arm.

[0056] One side of the crossbeam rocker arm 2-2 is connected to the column 2-1, and the other side is connected to the track crossbeam 2-5. It is the main component supporting the track crossbeam. The side connected to the column is designed as a circular connection component, and the two are connected by a cylindrical locking method. The side connected to the track crossbeam is designed as a larger square. The square connection part is designed with an interface for fixing the track crossbeam on the inner side, which is used to connect and fix the track crossbeam. The two are fixedly connected.

[0057] The triangular support plate 2-3 is a component supporting the crossbeam. It is triangular in shape and is located below the crossbeam and on one side of the column. It is connected to the crossbeam rocker arm 2-2 as a whole. One of its sides is slidably connected to the column. The triangular support plate and the column form a combined force to provide good support for the rocker arm crossbeam.

[0058] The crank handle 2-4 and the lifting linkage shaft are located on one side of the crossbeam rocker arm 2-2 and are designed at the rear of the column. The main function is to lift or lower the crossbeam rocker arm. The lifting linkage shaft passes through the two crossbeam rocker arms 2-2, and a lifting crank handle is designed at each end. By rotating the crank handle, the linkage shaft is driven to rotate, thereby driving the crossbeam rocker arm to rise or fall.

[0059] The track beam 2-5 is located at one end of the beam rocker arm 2-2 and is fixedly connected to the beam rocker arm 2-2. It is the main component for suspending the cutting module 3. The track beam is also the track for the cutting tool to make linear reciprocating motion. The track beam is designed as a rectangular parallelepiped, and the cutting module is suspended on the beam and makes linear reciprocating motion with the beam as the track.

[0060] In one embodiment, the cooling device specifically includes a cooling lubricant bottle 2-6 and a cooling lubricant conduit 2-7. The cooling lubricant bottle 2-6 is a container for storing cooling lubricant. The container is installed on the upper part of the crossbeam rocker arm 2-2. A cooling lubricant conduit 2-7 is designed at the bottom. One end of the conduit is connected to the cooling lubricant bottle 2-6, and the other end is arranged near the cutting tool. It is the main component for cooling and lubricating the cutting tool and the core. The top of the cooling lubricant bottle is designed with an air hole. The cooling lubricant conduit 2-7 is the main component for channeling the cooling lubricant. A switch is designed on the cooling lubricant conduit to close or open the cooling lubricant conduit. The utility model adopts a rotating cutting tool. At the same time, during the cutting process, there is cooling lubricant to cool the tool and lubricate the incision. No splashing rock chips will be generated during the cutting process, which is safer and more efficient for the operator.

[0061] The fixing bolt 2-8 is located on one side of the base module body 1-1 and is used to fasten the connection between the column and the base module body. A plurality of column fixing bolts can be designed on the outside of the base module as needed.

[0062] When in use, the lifting linkage shaft is driven by the crank handle 2-4, and the lifting linkage shaft moves up or down along the lifting track to drive the crossbeam rocker arm 2-2 to move up or down, thereby adjusting the height of the cutting module 3. When the crossbeam rocker arm 2-2 is raised or lowered, a right-angled side of the triangular support plate 2-3 is slidably connected to the column 2-1, thereby playing a fixing role;

[0063] In this embodiment, if Figure 1-Figure 3 , Figure 5-Figure 6 As shown, the specific structure of the cutting module 3 is:

[0064] The cutting module is the main component for cutting the core. The cutting power uses electricity as the energy source, and the electric motor is used as the power source to drive the cutter to cut, thereby dividing the core into two along the axis direction, and the cutting position can be flexibly adjusted according to the research purpose. The cutting module is suspended on the track beam 2-5 and performs reciprocating linear motion with the beam as the track.

[0065] The cutting module mainly includes a connecting device 3-1, a cutting motor 3-2, a cutting tool 3-3, a tool guard 3-4, and a reciprocating handle 3-5;

[0066] The connecting device 3-1 is the main device for connecting the track beam 2-5 and the cutting module. The connecting device 3-1 is slidably connected to the track beam and performs reciprocating linear motion with the beam as a track.

[0067] The cutting motor 3-2 is located at the lower part of the cutting module and is fixedly connected to the connecting device 3-2. It is the main power source of the cutting module.

[0068] The cutting tool 3-3 is arranged at the power output end of the cutting motor 3-2. It is a tool for cutting cores. It is designed to be circular and uses the power generated by rotation to cut cores. This rotary cutting method can ensure the smoothness of the cuts, and the cutting accuracy can be ensured by cooperating with the clamping device. The use of a disc rotating tool and a motor drive to cut cores solves the problem in the prior art that the cores may not be cut when encountering harder cores. On the other hand, the cut edges are flat, smooth, and have no unevenness, which is conducive to observing the cross section, transporting the cores, and preserving the cores.

[0069] The tool guard plate 3-4 is located on the periphery of the cutting tool 3-3 and surrounds the cutting tool in a semicircular shape, playing a dual protective role of protecting both the tool and the operator. The disc rotating tool is used to cut the core, and the cut edge is flat, smooth, and has no unevenness, which is conducive to observing the cross section, transporting the core, and preserving the core.

[0070] The reciprocating handle 3-5 is a component for pushing the cutting module to make reciprocating linear motion. It is located at the top of the cutting module, one end of which is connected to the top of the cutting module, and the other end is tightly grasped by the operator. By pushing the handle to make linear motion, the cutting module is driven to make reciprocating linear motion.

[0071] When in use, after the clamping component completes clamping the core, the crossbeam rocker arm 2-2 descends to the core cutting position, the cutting motor 3-2 is started, and the reciprocating handle 3-5 is tightly grasped by the operator, and the cutting module is driven to make a reciprocating linear motion to cut the core by pushing the handle to make a linear motion.

[0072] In summary, the utility model adopts a modular structure, and the various structures are conveniently combined, can be quickly assembled at the drilling site, and has the characteristics of being easy to carry and simple to operate. The utility model is provided with two clamping parts, which can conveniently clamp the cores of different diameters, thereby dividing the cores of different diameters, and has a wide range of applicability; at the same time, by adjusting the position of the holding part, the cutting line position can be flexibly adjusted according to different research purposes;

[0073] The utility model adopts a disc rotating cutter and drives the core through a motor to cut the core, which solves the problem in the prior art that the core may not be cut when encountering a harder core, and on the other hand makes the cut edge flat, smooth and without unevenness, which is conducive to observing the cross section, transporting the core and storing the core; at the same time, the utility model uses a cooling lubricant to cool the cutter and lubricate the incision during the cutting process, and no splashing rock chips are generated during the cutting process, which is safer and more efficient for the operator.

[0074] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A portable manual axial core sampling device, characterized in that: include: The base module comprises a base module body, on which two clamping parts are provided for clamping or releasing the core and moving toward or in the opposite direction along the base module body, and each of the two clamping parts is connected with a lead screw assembly, and the lead screw assembly is rotated to drive the clamping parts to move; and a cutting groove is provided on the base module body; The support module comprises a column with a lifting track on one side, the column is connected to a beam rocker arm, one end of the beam rocker arm is provided with a lifting linkage shaft, the lifting linkage shaft is equipped with a rocker handle, and the lifting linkage shaft is meshed and connected with the lifting track through a gear; the other end of the beam rocker arm is fixedly connected to the track beam; The cutting module includes a connecting device and a reciprocating handle. The connecting device is slidably connected to the track beam. One end of the reciprocating handle is connected to the top of the cutting module. The cutting module is driven to perform reciprocating linear motion by pushing the other end of the reciprocating handle. A cutting motor is provided on the connecting device, and a cutting tool is provided at the output end of the cutting motor.

2. The portable manual axial core sampling device according to claim 1, characterized in that: The bottom of the clamping component is a dovetail groove, and the base module body is provided with a dovetail that matches the dovetail groove.

3. The portable manual axial core sampling device according to claim 1, characterized in that: The screw assembly includes a screw and a crank, the clamping component is provided with a screw front compartment for accommodating the screw stroke, the base module body is provided with a screw rear compartment for accommodating the screw stroke, the screw is connected to the screw front compartment through a thread, and is connected to the screw rear compartment through a bearing, and the end of the screw is connected to the crank.

4. The portable manual axial core sampling device according to claim 1, characterized in that: The upper part of the column is a circular cylinder, and the lower part is plugged into the base module body and fastened by fixing bolts, and the lower plug-in part is a square column. The circular cylinder on the upper part of the column is connected to the crossbeam rocker arm through a cylindrical locking connection.

5. The portable manual axial core sampling device according to claim 1, characterized in that: A cooling device for cooling the cutting tool is provided on the top of the crossbeam rocker arm.

6. The portable manual axial core sampling device according to claim 5, characterized in that: The cooling device comprises a cooling lubricating liquid bottle installed on the upper part of the crossbeam rocker arm, and the cooling lubricating liquid bottle transports the cooling liquid to the cutting tool through the cooling lubricating liquid conduit.

7. The portable manual axial core sampling device according to claim 1, characterized in that: A triangular support plate is provided below the crossbeam rocker arm, and one side of the triangular support plate is slidably connected to the column.

8. The portable manual axial core sampling device according to claim 1, characterized in that: A tool guard plate is arranged on the periphery of the cutting tool.

9. The portable manual axial core sampling device according to claim 1, characterized in that: The two sides of the cutting groove are arc-shaped.

10. The portable manual axial core sampling device according to claim 1, characterized in that: The cutting tool is circular.

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