A core face cutter for geotechnical engineering exploration
By designing an adjustable-angle core cutting device, the problem of insufficient angle adjustment in existing devices has been solved, improving the flexibility and efficiency of core cutting and meeting the adaptability to different cutting needs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YEJING GRP CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-31
AI Technical Summary
The existing deflection angle adjustment mechanism of core cutting devices lacks flexibility, making it difficult to quickly adjust the cutting angle according to actual needs, thus reducing the adaptability and operational efficiency of core cutting operations.
A core face cutting device was designed. The combination of a detachable fixing bolt and a mounting bracket allows for adjustment of the cutting machine's deflection angle. The positioning slot and fixing bolt work together to limit the position of the mounting bracket. Combined with a pressing component and a clamping device, the flexibility and stability of the cutting angle are improved.
It enables rapid adjustment of the cutting angle according to actual needs, improves the adaptability and operational efficiency of core cutting, and enhances the flexibility and ease of use of the device.
Smart Images

Figure CN224581237U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to a core surface cutting instrument for geotechnical engineering exploration, belonging to the field of geological exploration technology. Background Technology
[0002] Geotechnical engineering exploration is the main means of determining the engineering geological conditions of the construction area. On-site personnel compile geological data based on core samples. Geotechnical designers mainly conduct geological analysis based on the data compiled by the construction unit. They also need to take photos of the core samples on-site for archiving and future review. Since drilling uses mud to protect the borehole walls, the surface of the core samples inevitably gets covered with a layer of mud. The data compilers need to remove the top layer of the core samples to determine the soil properties.
[0003] However, the existing technology still has the following shortcomings in use: when cutting rock cores, the deflection angle adjustment mechanism of the existing cutting device is not flexible enough, which makes it difficult to quickly adjust the cutting angle according to actual needs, thereby reducing the adaptability and operational efficiency of rock core cutting operations. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a core cutting instrument for geotechnical engineering exploration, thereby improving the flexibility of core cutting.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a core surface cutting instrument for geotechnical engineering exploration, comprising a base, a sliding frame fixedly connected above the base, a cutting frame slidably connected to the sliding frame, an installation frame rotatably connected inside the cutting frame, a cutting machine fixedly connected inside the installation frame, multiple evenly distributed positioning slots on the installation frame, a fixing bolt threaded inside the cutting frame, the fixing bolt penetrating the cutting frame and cooperating with the positioning slots, a pressing component provided above the base, and a positioning component slidably connected inside the base.
[0006] Furthermore, the pressing assembly includes a fixed frame fixedly connected to the top of the base, a pressing frame rotatably connected above the fixed frame, a connecting block fixedly connected to the pressing frame, and the connecting block rotatably connected to the cutting frame.
[0007] Furthermore, the positioning component includes a positioning plate slidably connected to the base, a pair of sliding grooves are provided on the positioning plate, and a clamping plate is slidably connected to the two sliding grooves. Two clamping plates are symmetrically arranged about the central axis of the positioning plate.
[0008] Furthermore, a screw is fixedly connected below the positioning plate, and at least four bolt caps are threaded onto the screw. A sleeve plate is also fixedly connected to one end of the clamping plate that passes through the slide groove. The sleeve plate is slidably connected to the screw, and two bolt caps are respectively disposed on both sides of the sleeve plate.
[0009] Furthermore, a pair of tension springs are fixedly connected between the cutting frame and the sliding frame.
[0010] Furthermore, a pair of filters are fixedly connected inside the mounting bracket.
[0011] Furthermore, a handle is fixedly connected to the lower pressure frame.
[0012] Beneficial effects:
[0013] This core cutting instrument for geotechnical engineering exploration allows for adjustment of the cutting machine's deflection angle by disassembling the fixing bolt and rotating the mounting frame. After adjustment, the fixing bolt is rotated into the positioning groove, thus limiting the position of the mounting frame. This facilitates adaptation to different cutting needs and makes it more convenient to use. It solves the problem of insufficient flexibility in the deflection angle adjustment mechanism of existing cutting devices when cutting cores, which makes it difficult to quickly adjust the cutting angle according to actual needs, thereby reducing the adaptability and operational efficiency of core cutting operations. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram showing the positional relationship between the cutting frame and the tension spring of this utility model;
[0016] Figure 3 This is a schematic diagram showing the positional relationship between the positioning groove and the fixing bolt of this utility model;
[0017] Figure 4 This utility model Figure 1 Enlarged schematic diagram of structure A in the middle;
[0018] Figure 5 This utility model Figure 2 Enlarged schematic diagram of the B-structure.
[0019] In the diagram: 100, base; 101, sliding frame; 102, cutting frame; 103, mounting frame; 104, cutting machine; 105, positioning groove; 106, fixing bolt; 110, fixing frame; 111, lower pressure frame; 112, connecting block; 120, positioning plate; 121, sliding groove; 122, clamping plate; 123, screw; 124, bolt cap; 125, sleeve plate; 126, tension spring; 130, filter; 131, handle. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1-5 As shown, a core surface cutting instrument for geotechnical engineering exploration includes a base 100, a sliding frame 101 fixedly connected above the base 100, a cutting frame 102 slidably connected to the sliding frame 101, a mounting frame 103 rotatably connected inside the cutting frame 102, and a cutting machine 104 fixedly connected inside the mounting frame 103. The mounting frame 103 has multiple evenly distributed positioning slots 105. A fixing bolt 106 is threaded into the cutting frame 102, penetrating the cutting frame 102 and engaging with the positioning slots 105. A pressing component is provided above the base 100, and a positioning component is slidably connected inside the base 100. By rotating the fixing bolt 106 out of the positioning slot 105, adjusting the angle of the cutting machine 104 by rotating the mounting frame 103, and then rotating the fixing bolt 106 back into the positioning slot 105, the position of the mounting frame 103 is defined, making it more convenient to use.
[0022] Please see Figure 1-3 As shown, a core surface cutting instrument for geotechnical engineering exploration includes a pressing component comprising a fixed frame 110 fixedly connected above a base 100, a pressing frame 111 rotatably connected above the fixed frame 110, and a connecting block 112 fixedly connected to the pressing frame 111. The connecting block 112 is rotatably connected to the cutting frame 102. By pressing the pressing frame 111, it is deflected, thereby driving the cutting frame 102 downward through the connecting block 112, which improves the convenience of use.
[0023] Please see Figure 1-2 As shown, a core cutting instrument for geotechnical engineering exploration includes a positioning plate 120 slidably connected to a base 100. The positioning plate 120 has a pair of grooves 121, and a clamping plate 122 is slidably connected to the two grooves 121. There are two clamping plates 122 symmetrically arranged about the central axis of the positioning plate 120. The core can be clamped and fixed by the two clamping plates 122, which makes it more practical.
[0024] Please see Figure 1-5As shown, a core cutting instrument for geotechnical engineering exploration has a screw 123 fixedly connected below a positioning plate 120. At least four bolt caps 124 are threaded onto the screw 123. A sleeve plate 125 is fixedly connected to one end of a clamping plate 122 that passes through a sliding groove 121. The sleeve plate 125 is slidably connected to the screw 123. Two bolt caps 124 are respectively set on both sides of the sleeve plate 125. By rotating the bolt caps 124 on both sides, the sleeve plate 125 is squeezed, thereby limiting the position of the clamping plate 122 and improving the stability when fixing the core.
[0025] Please see Figure 1-3 As shown, a core surface cutting instrument for geotechnical engineering exploration has a pair of tension springs 126 fixedly connected between the cutting frame 102 and the sliding frame 101. The tension springs 126 can drive the cutting frame 102 to reset, making the operation more convenient.
[0026] Please see Figure 1-4 As shown, a core surface cutter for geotechnical engineering exploration has a pair of filters 130 fixedly connected inside the mounting frame 103. By setting the filters 130, dust can be filtered when cutting the core, which helps to reduce the amount of dust inhaled by the operator during core cutting, thereby improving the safety during use.
[0027] Please see Figure 1-2 As shown, a core surface cutting instrument for geotechnical engineering exploration has a handle 131 fixedly connected to the lower pressure frame 111. The handle 131 makes it easier to press the lower pressure frame 111, which helps to improve the cutting efficiency of the core.
[0028] Specifically, in use, the device works as follows: First, the rock core is placed on the positioning plate 120. Then, the clamping plates 122 on both sides are pushed into contact with the rock core. The bolt caps 124 on both sides of the sleeve plate 125 are rotated on the screw 123 to contact the sleeve plate 125, thus compressing the sleeve plate 125. The sleeve plate 125 pushes the clamping plate 122 to fix the rock core. Then, according to the cutting requirements of the rock core, the fixing bolt 106 is rotated out of the positioning groove 105. The mounting bracket 103 is then rotated to adjust the deflection angle of the cutting machine 104. After adjustment, the fixing bolt 106 is rotated back into the positioning groove 105, thus fixing the mounting bracket 103. Once the core is cut, the cutting machine 104 is started to rotate. By pressing down on the lower pressure frame 111, the cutting frame 102 is pushed downward by the connecting block 112 under the support of the sliding frame 101, thereby driving the cutting machine 104 to cut the rock core. At the same time, the filter 130 is activated to filter the dust generated during cutting. During cutting, the positioning plate 120 can be pushed to slide, thereby adjusting the cutting position of the rock core horizontally. After the rock core is cut, the pressure on the lower pressure frame 111 is released, and then the cutting frame 102 is pulled upward by the tension spring 126 under the action of the sliding frame 101 to achieve a reset, which improves the convenience of use.
[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A core face cutter for geotechnical engineering exploration comprising a base (100) characterised in that: A sliding frame (101) is fixedly connected above the base (100). A cutting frame (102) is slidably connected to the sliding frame (101). A mounting frame (103) is rotatably connected inside the cutting frame (102). A cutting machine (104) is fixedly connected inside the mounting frame (103). Multiple evenly distributed positioning slots (105) are provided on the mounting frame (103). A fixing bolt (106) is threaded inside the cutting frame (102). The fixing bolt (106) passes through the cutting frame (102) and cooperates with the positioning slots (105). A pressing component is provided above the base (100). A positioning component is slidably connected inside the base (100).
2. The core surface cutting instrument for geotechnical engineering exploration as described in claim 1, characterized in that: The pressing assembly includes a fixed frame (110) fixedly connected above the base (100), a pressing frame (111) rotatably connected above the fixed frame (110), a connecting block (112) fixedly connected on the pressing frame (111), and the connecting block (112) rotatably connected to the cutting frame (102).
3. The core surface cutting instrument for geotechnical engineering exploration as described in claim 1, characterized in that: The positioning component includes a positioning plate (120) slidably connected to the base (100). A pair of sliding grooves (121) are provided on the positioning plate (120). A clamping plate (122) is slidably connected to the two sliding grooves (121). Two clamping plates (122) are symmetrically arranged about the central axis of the positioning plate (120).
4. The core surface cutting instrument for geotechnical engineering exploration as described in claim 3, characterized in that: A screw (123) is fixedly connected below the positioning plate (120). At least four bolt caps (124) are threaded onto the screw (123). A sleeve plate (125) is also fixedly connected to one end of the clamping plate (122) that passes through the slide groove (121). The sleeve plate (125) is slidably connected to the screw (123). Two bolt caps (124) are respectively located on both sides of the sleeve plate (125).
5. The core surface cutting instrument for geotechnical engineering exploration as described in claim 1, characterized in that: A pair of tension springs (126) are fixedly connected between the cutting frame (102) and the sliding frame (101).
6. The core surface cutting instrument for geotechnical engineering exploration as described in claim 1, characterized in that: A pair of filters (130) are fixedly connected inside the mounting bracket (103).
7. The core surface cutting instrument for geotechnical engineering exploration as described in claim 2, characterized in that: A handle (131) is fixedly connected to the lower pressure frame (111).