Geotechnical testing device for geological investigations in road construction

Abstract

Geotechnical testing device for geological investigations in road construction, comprising a triangular plate (1), characterized in that a fixing frame (4) is fixedly connected to an upper surface of the triangular plate (1), wherein an electrically operated telescopic rod (6) is fixedly mounted on a lower surface of the fixing frame (4), wherein a drilling frame (7) is fixedly mounted on the lower surface of the electrically operated telescopic rod (6), wherein a drilling bit (8) is detachably connected to the lower surface of the drilling frame (7), wherein a base (9) is rotatably connected to the lower surface of the triangular plate (1), wherein the triangular plate (1) is provided with a positioning assembly (2) on an outer surface, while the triangular plate (1) is provided with an auxiliary assembly (3) on an outer side of the upper surface;wherein the positioning assembly (2) comprises a telescopic plate (21), wherein the telescopic plate (21) is fixedly connected to a plurality of groups of evenly distributed snap strips (22) on the upper surface at one telescopic end, wherein a plurality of groups of snap grooves (28) are formed on the upper surface of the telescopic plate (21), wherein the telescopic plate (21) is fixedly connected to a positioning block (23) at one end, wherein the positioning block (23) is fixedly connected to a limit rod (27) at a left end and a right end on an inner wall, wherein the positioning block (23) is slidably connected to a foot pedal (25) on the inner wall, and wherein a positioning post (26) is fixedly mounted on an axis center of the lower surface of the foot pedal (25);

Description

Technical area

[0001] The present utility model relates to the technical field of geological and geotechnical testing equipment, in particular a geotechnical testing device for geological investigations in road construction. State of the art

[0002] In geological investigations for road construction, the precise testing of geotechnical parameters plays a key role in assessing the stability of the road substructure and structural design. Currently, the industry typically uses a phased testing method. After geotechnical samples are taken through boreholes, the samples are transported to the laboratory for sequential testing of indices such as compressive strength, water content, and mechanical properties using a consolidation tester, a shear tester, and other equipment.

[0003] Conventional jigs are sloppy in positioning, making accurate and stable positioning difficult in complex and changing terrain. Furthermore, the jig is prone to displacement and vibration during drilling, leading to a decrease in drilling accuracy and compromising the reliability of survey data. In this context, the present utility model develops a geotechnical testing jig for geological surveys in road construction to solve the above problems. Contents of this utility model

[0004] In order to eliminate the above disadvantages, the present utility model provides a geotechnical testing device for geological investigations in road construction, which is intended to improve the problem that the device in the prior art is susceptible to displacements and vibrations.

[0005] To achieve the above purpose, the present utility model uses the following technical solution: a geotechnical testing device for geological surveys in road construction, comprising a triangular plate, wherein a fixing frame is fixedly connected to an upper surface of the triangular plate, wherein an electrically operated telescopic rod is fixedly mounted on a lower surface of the fixing frame, wherein a drilling frame is fixedly mounted on the lower surface of the electrically operated telescopic rod, wherein a drill bit is detachably connected to the lower surface of the drilling frame, wherein a base is rotatably connected to the lower surface of the triangular plate, wherein the triangular plate is provided with a positioning assembly on an outer surface, while the triangular plate is provided with an auxiliary assembly on an outer side of the upper surface, wherein the positioning assembly comprises a telescopic plate,wherein the telescopic plate is fixedly connected to a plurality of groups of evenly distributed snap strips on the upper surface at one telescopic end, wherein a plurality of groups of snap grooves are formed on the upper surface of the telescopic plate, wherein the telescopic plate is fixedly connected to a positioning block at one end, wherein the positioning block is fixedly connected to a limit rod at a left end and a right end on an inner wall, wherein the positioning block is slidably connected to a foot pedal on the inner wall, and wherein a positioning post is fixedly mounted on an axis center of the lower surface of the foot pedal.

[0006] As a further description of the above technical solution, the auxiliary assembly comprises an auxiliary baffle plate, wherein an auxiliary groove is formed on a front surface of the auxiliary baffle plate, wherein a plurality of groups of magnetic strips are fixedly mounted on the inner wall of the auxiliary groove.

[0007] As a further description of the above technical solution, a magnetic plate is fixedly connected to the upper surface of the positioning block, and a regulating device is fixedly mounted on the upper surface of the fixing frame.

[0008] As a further description of the above technical solution, the positioning post is continuously connected to the lower surface of the positioning block.

[0009] As a further description of the above technical solution, the limit bar is penetratively connected to the upper surface of the foot pedal.

[0010] As a further description of the above technical solution, the magnetic plate is magnetically opposed to the magnetic stripe and the magnetic plate is magnetically connected to the magnetic stripe.

[0011] As a further description of the above technical solution, the auxiliary baffle plate is fixedly mounted on an outer side of a groove opening on the upper surface of the triangular plate.

[0012] As a further description of the above technical solution, a front end of the telescopic plate is hingedly connected to the outer surface of the triangular plate.

[0013] The present utility model has the following advantages: 1. In the present utility model, the telescopic plate, the positioning block, the positioning pile and other components in the positioning assembly cooperate with each other through a connecting relationship, so that the positioning assembly can be flexibly adjusted according to the terrain to expand the range and accurate positioning, and after insertion, the positioning pile can prevent the device from being displaced into the ground to ensure the accuracy of the drilling process. 2. In the present utility model, the auxiliary baffle plate, the magnetic strip, the magnetic plate and other components in the auxiliary assembly cooperate with each other through a connecting relationship, thereby reducing the occupied area of ​​the device during transportation and improving the stability of the device after folding and storage. Short description of the drawing Fig. 1 is a schematic diagram showing the front view portion of a main body of a geotechnical testing apparatus for geological surveys in road construction according to the present utility model; Fig. 2 is a schematic diagram showing the ground view portion of the main body of the geotechnical testing apparatus for geological investigations in road construction according to the present utility model; Fig. 3 shows a schematic representation of the partial area of ​​a positioning assembly of the geotechnical testing device for geological investigations in road construction according to the present utility model; Fig. 4 shows a schematic representation of the partial section of a positioning block of the geotechnical testing device for geological investigations in road construction according to the present utility model; Fig. 5 shows a schematic representation of the partial area of ​​an auxiliary impact plate of the geotechnical testing device for geological investigations in road construction according to the present utility model; List of reference symbols:

[0014] 1. Triangular plate; 2. Positioning assembly; 21. Telescopic plate; 22. Snap strip; 23. Positioning block; 24. Magnetic plate; 25. Foot pedal; 26. Positioning stake; 27. Limit rod; 28. Snap groove; 3. Auxiliary assembly; 31. Auxiliary baffle plate; 32. Auxiliary groove; 33. Magnetic strip; 4. Fixing frame; 5. Regulating device; 6. Electric telescopic rod; 7. Drill frame; 8. Drill head; 9. Base. Detailed description of the embodiments

[0015] In the following, the technical solutions in the embodiments of the present utility model are described clearly and completely in conjunction with the attached drawings. It is clear that the described embodiments are a part of the embodiments of the present utility model, not all of them. Starting from the embodiments of the present utility model, all other embodiments that can be achieved by a person skilled in the art without creative effort fall within the scope of the present utility model.

[0016] With reference to Fig. 1 to 2, the present utility model provides an embodiment: a geotechnical testing device for geological surveys in road construction, comprising a triangular plate 1. The triangular plate 1 serves as the basic support structure for the entire geotechnical testing device, providing a stable geometric structure that ensures the overall balance and stability of the device during operation. A mounting frame 4 is firmly connected to the upper surface of the triangular plate 1 and provides a mounting platform for the regulating device 5, allowing it to be stably attached to the entire device. The electrically driven telescopic rod 6 can be firmly attached to the triangular plate 1, ensuring the power transmission and structural stability of the subsequent drilling process.A control device 5 is fixedly mounted on the upper surface of the mounting frame 4. The control device 5 serves to control the operating state of the entire testing device. The electric-driven telescopic rod 6 is fixedly mounted on the lower surface of the mounting frame 4. By controlling the telescopic length and speed of the electric-driven telescopic rod 6 via the control device 5, the drilling depth and drilling speed can be precisely controlled to meet drilling requirements under different geological conditions. A drilling frame 7 is fixedly mounted on the lower surface of the electric-driven telescopic rod 6. The drilling frame 7 serves as a mounting and supporting platform for the drill bit 8, ensuring that the drill bit 8 can maintain a stable working position during drilling.A core bit 8 is detachably connected to the lower surface of the drilling frame 7. The detachable design of the core bit 8 facilitates quick replacement of the core bit 8 when the core bit 8 is worn or when the type of core bit 8 needs to be replaced, thus improving the versatility and practicality of the device. A base 9 is rotatably connected to the lower surface of the triangular plate 1. The base 9 can flexibly adjust the overall inclination angle of the device by rotatably connecting it to the triangular plate 1 to adapt to different terrain and inspection requirements. The base 9 has a larger surface area, which can increase the contact area between the device and the ground and improve the stability and anti-tilt resistance of the device during work.The triangular plate 1 is provided with a positioning assembly 2 on the outer surface, and the triangular plate 1 is provided with an auxiliary assembly 3 on the upper surface.

[0017] With reference to Fig. 1 to 2, the positioning assembly 2 includes a telescopic plate 21. The telescopic plate 21 is capable of flexibly adjusting the deployment range of the positioning assembly 2 according to the topography and requirements of the actual test site, thus adapting to different positioning conditions and requirements. A front end of the telescopic plate 21 is pivotally connected to the outer surface of the triangular plate 1, and the telescopic plate 21 is fixedly connected to a plurality of groups of evenly spaced snap strips 22 on the upper surface at one telescopic end. A plurality of groups of snap grooves 28 are formed on the upper surface of the telescopic plate 21. The snap grooves 28 cooperate with the snap strips 22 to determine the telescopic length of the telescopic plate 21, which improves the stability of the device after a telescope change.The telescopic plate 21 is fixedly connected to a positioning block 23 at one end, the positioning block 23 is an important actuating component of the positioning assembly 2, and the positioning block 23 is fixedly connected to a limit rod 27 at a left end and a right end on an inner wall, the limit rod 27 is used to limit and guide the movement of the foot pedal 25 to ensure that the foot pedal 25 remains stable during the up and down movement and can accurately drive the positioning pile 26 to perform positioning operations.The positioning block 23 is slidably connected to a foot pedal 25 on the inner wall. The operator can step on the foot pedal 25 and use their own weight and strength to step on the positioning stake 26 and insert it into the ground, achieving accurate positioning and stable fixation of the jig and preventing the jig from shifting during the drilling process. The limit rod 27 is penetratingly connected to the upper surface of the foot pedal 25, and the positioning stake 26 is fixedly mounted on an axis center of the lower surface of the foot pedal 25. The positioning stake 26 is continuously connected to the lower surface of the positioning block 23.The positioning pile 26 is an elongated columnar structure with a sharp bottom for easy insertion into the ground, and when the foot pedal 25 is stepped down, the positioning pile 26 can be firmly inserted into the rock and the ground, which serves to fix the position of the device and ensure the accuracy of the drilling operation.

[0018] With reference to Fig. 1 and Fig.4 to 5, the auxiliary assembly 3 includes an auxiliary baffle plate 31. The auxiliary baffle plate 31 is fixedly mounted on an outer side of a groove opening on the upper surface of the triangular plate 1, and the auxiliary locking plate 31 serves a blocking and limiting function. When the magnetic plate 24 on the positioning block 23 is magnetically connected to the magnetic strip 33 in the auxiliary groove 32, the auxiliary baffle plate 31 can provide a stable support surface for the magnetic plate 24, thereby preventing the magnetic plate 24 from being deflected or shaken during the magnetic connection process and ensuring the tightness and stability of the connection between the positioning block 23 and the auxiliary baffle plate 31.An auxiliary groove 32 is formed on a front surface of the auxiliary baffle plate 31, and the auxiliary groove 32 provides a space and support for mounting the magnetic strip 33, while also providing a docking area for the magnetic connection between the magnetic plate 24 on the positioning block 23 and the magnetic strip 33. A plurality of groups of magnetic strips 33 are fixedly mounted on the inner wall of the auxiliary groove 32, and a magnetic plate 24 is fixedly connected to the upper surface of the positioning block 23.The magnetic plate 24 is magnetically opposed to the magnetic strip 33, and the magnetic plate 24 is magnetically connected to the magnetic strip 33, and the magnetic attraction force between the magnetic strip 33 and the magnetic plate 24 is capable of firmly binding the positioning block 23 to the auxiliary baffle plate 31, thereby reducing the occupied area of ​​the device during transportation and improving the stability of the device after folding and storing. Operating principle:

[0019] The jig is transported to a geological survey site in road construction, and the operator rotates the relative angles of the base 9 and the triangular plate 1 according to the actual terrain and inspection requirements, adjusting the overall inclination angle of the jig so that the jig can be stably placed on the ground. Then, the telescopic plate 21 is deployed in the positioning assembly 2, and the telescopic length of the telescopic plate 21 is positioned by adjusting the telescopic length of the telescopic plate 21 so that the snap strip 22 on the telescopic plate 21 is coordinated with the snap groove 28, thereby initially determining the deployment range of the jig and preparing for subsequent accurate positioning.

[0020] The operator steps on the foot pedal 25, which is slidably connected to the inner wall of the positioning block 23 in the positioning assembly 2, and, through his own weight and force, causes the positioning stake 26, which is firmly mounted on the axis center of the lower surface of the foot pedal 25, to be inserted downward into the ground. The elongated columnar structure and the sharp bottom of the positioning stake 26 enable firm insertion into the rock and soil, thereby achieving precise positioning and stable fixing of the device, preventing displacement of the device during drilling and ensuring the accuracy of the drilling process.At the same time, the limit rods 27, which are fixed at the left and right ends on the inner wall of the positioning block 23, are continuously connected to the entire upper surface of the foot pedal 25 and limit and guide the movement of the foot pedal 25, so that the foot pedal 25 remains stable during the up and down movement and accurately drives the positioning post 26 for the positioning operation.

[0021] The magnetic plate 24, which is firmly connected to the upper surface of the positioning block 23, magnetically opposes the magnetic strip 33, which is firmly installed on the inner wall of the auxiliary groove 32 opening on the front surface of the auxiliary baffle 31 in the auxiliary assembly 3, and the two are magnetically connected to each other. Due to the magnetic attraction between the magnetic strip 33 and the magnetic plate 24, the positioning block 23 is firmly adsorbed to the auxiliary baffle 31. The auxiliary baffle 31 is firmly mounted on the outer side of the groove opening on the upper surface of the triangular plate 1 and provides a stable support surface for the magnetic plate 24, which further restricts the movement of the device, increases the overall stability of the device and its resistance to tipping, and also reduces the occupied area of ​​the device during transportation and improves the stability of the device after folding and storing.

[0022] It should be noted that the above embodiments serve only to illustrate the technical solutions of the present utility model and do not constitute limitations. Although the present utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that they may still modify the technical solutions described in the preceding embodiments or replace some or all of the technical features with equivalent alternatives without departing from the spirit and scope of the technical solutions of the present utility model, which should be covered by the scope of the claims of the present utility model.

Claims

[1] Geotechnical testing device for geological investigations in road construction, comprising a triangular plate (1), characterized bythat a fastening frame (4) is fixedly connected to an upper surface of the triangular plate (1), wherein an electrically operated telescopic rod (6) is fixedly mounted on a lower surface of the fastening frame (4), wherein a drilling frame (7) is fixedly mounted on the lower surface of the electrically operated telescopic rod (6), wherein a drill bit (8) is detachably connected to the lower surface of the drilling frame (7), wherein a base (9) is rotatably connected to the lower surface of the triangular plate (1), wherein the triangular plate (1) is provided with a positioning assembly (2) on an outer surface, while the triangular plate (1) is provided with an auxiliary assembly (3) on an outer side of the upper surface;wherein the positioning assembly (2) comprises a telescopic plate (21), wherein the telescopic plate (21) is fixedly connected to a plurality of groups of evenly distributed snap strips (22) on the upper surface at one telescopic end, wherein a plurality of groups of snap grooves (28) are formed on the upper surface of the telescopic plate (21), wherein the telescopic plate (21) is fixedly connected to a positioning block (23) at one end, wherein the positioning block (23) is fixedly connected to a limit rod (27) at a left end and a right end on an inner wall, wherein the positioning block (23) is slidably connected to a foot pedal (25) on the inner wall, and wherein a positioning post (26) is fixedly mounted on an axis center of the lower surface of the foot pedal (25); [2] Geotechnical testing device for geological investigations in road construction according to claim 1, characterized bythat the auxiliary assembly (3) comprises an auxiliary baffle plate (31), wherein an auxiliary groove (32) is formed on a front surface of the auxiliary baffle plate (31), wherein a plurality of groups of magnetic strips (33) are fixedly mounted on the inner wall of the auxiliary groove (32). [3] Geotechnical testing device for geological investigations in road construction according to claim 1, characterized by that a magnetic plate (24) is fixedly connected to the upper surface of the positioning block (23), and that a regulating device (5) is fixedly mounted on the upper surface of the mounting frame (4). [4] Geotechnical testing device for geological investigations in road construction according to claim 1, characterized by that the positioning post (26) is continuously connected to the lower surface of the positioning block (23). [5] Geotechnical testing device for geological investigations in road construction according to claim 1, characterized bythat the limit rod (27) is penetratingly connected to the upper surface of the foot pedal (25). [6] Geotechnical testing device for geological investigations in road construction according to claim 3, characterized by that the magnetic plate (24) is magnetically opposite the magnetic strip (33) and that the magnetic plate (24) is magnetically connected to the magnetic strip (33). [7] Geotechnical testing device for geological investigations in road construction according to claim 2, characterized by that the auxiliary baffle plate (31) is fixedly mounted on an outer side of a groove opening on the upper surface of the triangular plate (1). [8] Geotechnical testing device for geological investigations in road construction according to claim 1, characterized by that a front end of the telescopic plate (21) is hingedly connected to the outer surface of the triangular plate (1).

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