Fixing support for in-situ testing of engineering investigation

Abstract

The utility model relates to a fixing support for engineering investigation in-situ testing, and relates to the field of engineering investigation testing supports. The device comprises a supporting piece, a lifting piece and a clamping piece, the supporting piece comprises a bottom plate, the bottom plate is horizontally arranged on the ground, a rod frame is fixed to the top face of the bottom plate, the lifting piece comprises a sliding frame, the sliding frame is vertically fixed to the top face of the rod frame, a lifting sliding block is vertically installed in the sliding frame in a sliding mode, and a stud is horizontally fixed to the front end face of the lifting sliding block; a screw cylinder is assembled on the stud in a threaded mode, and a rotating cylinder is horizontally fixed to the end of the screw cylinder. A clamping screw rod on a rotating screw hole frame extrudes and clamps a connecting cylinder in a clamping frame, meanwhile, in order to conveniently adjust the impact direction and angle, a rotating column 32 of the rotating clamping frame is arranged in a rotating cylinder, the clamped connecting cylinder is carried to deflect the experiment direction, the data requirement when a soil layer is subjected to force in different directions is met, and the soil layer stress data collection range is expanded.

Description

Technical Field

[0001] The present application relates to the technical field of engineering investigation and testing brackets, and in particular to a fixed bracket for in-situ testing of engineering investigation and testing. Background Art

[0002] In-situ testing is a test of the properties of rock and soil at its original location or basically in its in-situ state and stress conditions. The standard penetration test and the dynamic penetration test are two commonly used in-situ test tests on site. Both tests use a core hammer of a certain mass to drive a standard specification penetrometer or conical probe into the soil layer at a certain height of free fall. Therefore, during the test, a guide bracket needs to be set to guide the core hammer to fall downward at different angles, so as to collect stable data when the soil layer is stressed in different directions.

[0003] The existing announcement number is CN218268365U, and the name is a fixed bracket for in-situ testing of engineering surveys, which includes a lifting tripod, a fixing plate, a connecting tube and multiple basket screw tensioners. The height and angle of the fixed bracket for in-situ testing of engineering surveys are adjusted according to the remaining length of the drill rod and the site conditions. It has high reliability, simple structure, and is easy to use. In addition, its connecting tube is connected to the legs of the lifting tripod through a basket screw tensioner, which has higher stability, and the circular ring protrusions at the upper and lower ends inside it can reduce the friction contact area between the drill rod and the sleeve, and the straightening effect is better.

[0004] With respect to the above-mentioned related technologies, the inventors found that the above-mentioned connecting tube guide penetrometer or conical probe is used to impact the soil layer downward to observe the stability of the soil layer, but the connecting tube is supported by a tripod, and the tripod can only fix the connecting tube in a single direction. However, during in-situ testing, it is necessary to collect data when the soil layer is subjected to forces in different directions. At this time, the use of a tripod cannot adjust the direction in which the connecting tube guide penetrometer or conical probe impacts the soil layer downward, and cannot meet the data demand when the soil layer is subjected to forces in different directions, which affects the scope of collecting soil layer force data. Utility Model Content

[0005] In order to overcome the problem that the existing tripod cannot adjust the direction in which the connecting tube guide penetrator or conical probe hits the soil layer downward, cannot meet the data requirements when the soil layer is subjected to forces in different directions, and affects the scope of collecting soil layer force data, the present application provides a fixed bracket for in-situ testing in engineering surveys.

[0006] The present application provides a fixed bracket for in-situ testing of engineering investigations using the following technical solution:

[0007] The invention discloses a fixed bracket for in-situ testing of engineering investigation, comprising a supporting member, a lifting member and a clamping member, wherein the supporting member comprises a base plate, which is horizontally arranged on the ground, and a rod frame is fixed on the top surface of the base plate, the lifting member comprises a sliding frame, which is vertically fixed on the top surface of the rod frame, and a lifting slider is vertically slidably installed in the sliding frame, a stud is horizontally fixed on the front end surface of the lifting slider, and a screw barrel is threadedly assembled on the stud, and a rotating barrel is horizontally fixed on the end of the screw barrel, the clamping member comprises a clamping frame, the clamping frame is vertically arranged at the end of the rotating barrel, and a rotating column is horizontally fixed on the end of the clamping frame close to the rotating barrel, and the rotating column is rotatably installed in the rotating barrel, a screw hole frame is horizontally fixed on the end of the clamping frame away from the rotating column, and a clamping screw is assembled on the screw hole frame with a horizontal thread, a connecting barrel is inserted in the clamping frame, and the connecting barrel is squeezed in the clamping frame by the clamping screw.

[0008] By adopting the above technical solution, after selecting a suitable soil test point during use, the base plate on the support is horizontally installed on the ground of the soil test point, and then the lifting slider is slid vertically on the slide frame according to the height requirement of the experimental impact, and after adjusting the appropriate experimental height, the rotating screw barrel is translated on the stud at the end of the lifting slider, and after horizontally adjusting the impact position of the experiment, the connecting tube is inserted into the card frame, and the clamping screw on the screw hole frame is rotated to squeeze the clamping connecting tube in the card frame. At the same time, in order to facilitate the adjustment of the direction and angle of the impact, the rotating column of the rotating card frame is in the rotating cylinder, and the clamped connecting tube is carried to deflect the experimental direction, which meets the data requirements when the soil layer is subjected to forces in different directions, and expands the scope of collecting soil layer force data.

[0009] Optionally, a level is horizontally fixed in the middle of the top surface of the base plate, and two screw seats are symmetrically and vertically fixed at both ends of the base plate, and support screws are assembled through vertical threads in the screw seats.

[0010] By adopting the above technical solution, the length of the support screws on the screw seats at both ends of the rotating base plate is controlled to vertically penetrate the base plate. According to the reading of the level meter on the base plate, the base plate is installed at the test point to keep it level, so as to improve the accuracy of subsequent tests.

[0011] Optionally, plug rods are vertically fixed on both sides of the rod rack, and counterweight blocks are vertically slidably plugged into the plug rods of the rod rack.

[0012] By adopting the above technical solution, the rods on the rod frame are vertically inserted with multiple counterweights to increase the weight of the base plate itself, lower the center of gravity and ensure the stability of the support test.

[0013] Optionally, an adjusting screw is vertically rotatably connected in the sliding frame, a screw hole is vertically penetrated through the middle of the lifting sliding block, and the screw hole is threadably connected with the adjusting screw.

[0014] By adopting the above technical solution, the adjusting screw on the slide frame is rotated during use, and the thread drives the lifting slider to slide vertically in the slide frame, so that the lifting slider can be slid vertically on the slide frame according to the height requirements of the experimental impact to adjust the appropriate experimental height.

[0015] Optionally, a through hole is vertically opened on the top surface of the outer circumferential surface of the rotating drum, and a positioning column is slidably inserted in the through hole of the rotating drum.

[0016] By adopting the above technical solution, a positioning column is vertically slidably installed in the through hole of the rotating drum, which is convenient for positioning the deflection direction of the rotating column in the rotating drum. The rotating column of the rotating clamp frame is in the rotating drum, carrying the clamped connecting tube to deflect the test direction, which is convenient for adjusting the direction and angle of the impact.

[0017] Optionally, a plurality of positioning holes are evenly and vertically opened on the outer circumferential surface of the rotating column, and the positioning holes are plugged into the positioning columns to limit the rotating column in the rotating drum.

[0018] By adopting the above technical solution, the deflection direction of the rotating column in the positioning drum is positioned, and the positioning column is inserted into the positioning hole of the rotating column to ensure the clamping angle of the clamping member on the lifting member.

[0019] Optionally, a spring is vertically sleeved outside the positioning column, and two ends of the spring are respectively fixed to the end of the positioning column and the outer circumferential surface of the rotating drum.

[0020] By adopting the above technical solution, the spring deformation force on the positioning column pulls the positioning column downward to insert into the rotating drum, so as to ensure the stability of the positioning column inserted into the positioning hole of the rotating column.

[0021] Optionally, rubber sheets are fixed on both the card frame and the pressure plate.

[0022] By adopting the above technical solution, the rubber sheet fixed by the clamping frame and the pressure plate increases the friction with the outer wall of the connecting tube, thereby ensuring the stability of the clamping of the connecting tube.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: after selecting a suitable soil layer test point during use, the base plate on the support is horizontally installed on the ground of the soil layer test point, and then the lifting slider is vertically slid on the slide frame according to the height requirement of the experimental impact, and after adjusting the appropriate experimental height, the rotating screw barrel is translated on the stud at the end of the lifting slider, and after horizontally adjusting the impact position of the experiment, the connecting tube is inserted into the card frame, and the clamping screw on the rotating screw hole frame is squeezed to clamp the connecting tube in the card frame. At the same time, in order to facilitate the adjustment of the direction and angle of the impact, the rotating column 32 of the rotating card frame is in the rotating cylinder, and the clamped connecting tube is carried to deflect the experimental direction, thereby meeting the data requirements when the soil layer is subjected to forces in different directions, and expanding the scope of collecting soil layer force data. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1It is a schematic diagram of the overall structure of an embodiment of the present application.

[0025] Figure 2 It is a schematic diagram of the structure of the embodiment of the present application in an exploded state;

[0026] Figure 3 is a schematic structural diagram of a support member in an exploded state according to an embodiment of the present application;

[0027] Figure 4 It is a schematic diagram of the structure of the lifting member of the embodiment of the present application in a disassembled state;

[0028] Figure 5 It is a schematic diagram of the structure of the clamping member in the embodiment of the present application in a disassembled state.

[0029] Explanation of the reference numerals: 1. Support member; 11. Bottom plate; 111. Screw seat; 12. Support screw; 13. Level; 14. Rod rack; 15. Counterweight; 2. Lifting member; 21. Sliding frame; 22. Adjusting screw; 23. Lifting slider; 231. Screw hole; 24. Stud; 25. Screw barrel; 26. Rotating barrel; 27. Positioning column; 28. Spring; 3. Clamping member; 31. Card frame; 32. Rotating column; 321. Positioning hole; 33. Screw hole rack; 34. Clamping screw; 35. Pressing plate; 36. Rubber sheet; 4. Connecting barrel. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with the accompanying drawings.

[0031] The present application embodiment discloses a fixing bracket for in-situ testing of engineering survey. Figure 1 , Figure 2 , Figure 4 and Figure 5 A fixed bracket for in-situ testing of engineering surveys comprises a support member 1, a lifting member 2 and a clamping member 3. The support member 1 comprises a bottom plate 11, the bottom plate 11 is horizontally arranged on the ground, and a rod frame 14 is fixed on the top surface of the bottom plate 11. The lifting member 2 comprises a sliding frame 21, the sliding frame 21 is vertically fixed on the top surface of the rod frame 14, and a lifting slider 23 is vertically slidably installed in the sliding frame 21. A stud 24 is horizontally fixed on the front end surface of the lifting slider 23, and a screw barrel 25 is threadedly assembled on the stud 24. The screw barrel 2 5 is horizontally fixed with a rotating cylinder 26, the clamping member 3 includes a clamping frame 31, the clamping frame 31 is vertically arranged at the end of the rotating cylinder 26, and a rotating column 32 is horizontally fixed to one end of the clamping frame 31 close to the rotating cylinder 26, and the rotating column 32 is rotatably installed in the rotating cylinder 26, a screw hole frame 33 is horizontally fixed to one end of the clamping frame 31 away from the rotating column 32, and a clamping screw 34 is assembled through a horizontal thread on the screw hole frame 33, a connecting cylinder 4 is inserted in the clamping frame 31, and the connecting cylinder 4 is squeezed in the clamping frame 31 through the clamping screw 34.

[0032] By adopting the above technical solution, after selecting a suitable soil layer test point during use, the base plate 11 on the support 1 is horizontally installed on the ground of the soil layer test point, and then the lifting slider 23 is vertically slid on the slide frame 21 according to the height requirement of the experimental impact. After adjusting the appropriate experimental height, the rotating screw barrel 25 is translated on the stud 24 at the end of the lifting slider 23. After horizontally adjusting the impact position of the experiment, the connecting tube 4 is inserted into the card frame 31, and the clamping screw 34 on the rotating screw hole frame 33 is squeezed to clamp the connecting tube 4 in the card frame 31. At the same time, in order to facilitate the adjustment of the direction and angle of the impact, the rotating column 32 of the rotating card frame 31 is in the rotating barrel 26, and the clamped connecting tube 4 is carried to deflect the experimental direction, so as to meet the data requirements when the soil layer is subjected to forces in different directions, and expand the scope of collecting soil layer force data.

[0033] Reference Figure 3 A spirit level 13 is horizontally fixed in the middle of the top surface of the bottom plate 11, and two screw seats 111 are symmetrically and vertically fixed at both ends of the bottom plate 11. The vertical threads in the screw seats 111 are assembled with support screws 12. During use, the support screws 12 on the screw seats 111 at both ends of the bottom plate 11 are controlled to vertically penetrate the length of the bottom plate 11. According to the reading of the spirit level 13 on the bottom plate 11, the bottom plate 11 is installed at the test point to keep it level, so as to improve the accuracy of the subsequent tests.

[0034] Reference Figure 3 , plug rods are vertically fixed on both sides of the rod frame 14, and counterweight blocks 15 are vertically slidably inserted on the plug rods of the rod frame 14. The plug rods on the rod frame 14 are vertically inserted with multiple counterweight blocks 15 to increase the weight of the base plate 11 itself, lower the center of gravity and ensure the stability of the support test.

[0035] Reference Figure 4 and Figure 5 The slide frame 21 is vertically rotatably connected with an adjusting screw 22, and a screw hole 231 is vertically penetrated in the middle of the lifting slider 23, and the screw hole 231 is threadedly connected with the adjusting screw 22. When in use, the adjusting screw 22 on the slide frame 21 is rotated, and the thread drives the lifting slider 23 to slide vertically in the slide frame 21, so that the lifting slider 23 can slide vertically on the slide frame 21 according to the height requirements of the experimental impact, and adjust the appropriate experimental height.

[0036] Reference Figure 4 and Figure 5, a through hole is vertically opened on the top surface of the outer circumference of the rotating cylinder 26, and a positioning column 27 is slidably inserted in the through hole of the rotating cylinder 26. The positioning column 27 is vertically slidably installed in the through hole of the rotating cylinder 26, which is convenient for positioning the deflection direction of the rotating column 32 in the rotating cylinder 26. The rotating column 32 of the rotating clamp frame 31 is in the rotating cylinder 26, and the clamped connecting cylinder 4 is deflected in the experimental direction, which is convenient for adjusting the direction and angle of the impact. A plurality of positioning holes 321 are evenly and vertically opened on the outer circumference of the rotating column 32, and the positioning holes 321 are inserted with the positioning column 27 to limit the rotating column 32 in the rotating cylinder 26. The deflection direction of the rotating column 32 in the positioning cylinder 26 is positioned, and the positioning column 27 is inserted into the positioning hole 321 of the rotating column 32 to ensure the clamping angle of the clamping member 3 on the lifting member 2. The outer side of the positioning column 27 is vertically sleeved with a spring 28, and the two ends of the spring 28 are respectively fixed to the end of the positioning column 27 and the outer circumference of the rotating cylinder 26. The deformation force of the spring 28 on the positioning column 27 pulls the positioning column 27 downward to insert into the rotating cylinder 26, which is used to ensure the stability of the positioning column 27 inserted into the positioning hole 321 of the rotating cylinder 32. Rubber sheets 36 are fixed to the clamping frame 31 and the pressing plate 35. The rubber sheets 36 fixed to the clamping frame 31 and the pressing plate 35 increase the friction with the outer wall of the connecting cylinder 4, ensuring the stability of the clamping of the connecting cylinder 4.

[0037] The implementation principle of a fixed bracket for in-situ testing in engineering surveys in an embodiment of the present application is as follows: after selecting a suitable soil layer test point during use, the base plate 11 on the support member 1 is horizontally installed on the ground at the soil layer test point, and then the lifting slider 23 is vertically slid on the slide frame 21 according to the height requirement of the experimental impact, and after adjusting the appropriate experimental height, the rotating screw barrel 25 is translated on the stud 24 at the end of the lifting slider 23, and after horizontally adjusting the impact position of the experiment, the connecting tube 4 is inserted into the card frame 31, and the clamping screw 34 on the rotating screw hole frame 33 is squeezed to clamp the connecting tube 4 in the card frame 31. At the same time, in order to facilitate the adjustment of the direction and angle of the impact, the rotating column 32 of the rotating card frame 31 is in the rotating barrel 26, carrying the clamped connecting tube 4 to deflect the experimental direction.

[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fixed bracket for in-situ testing of engineering survey, characterized in that: The invention comprises a support member (1), a lifting member (2) and a clamping member (3), wherein the support member (1) comprises a bottom plate (11), the bottom plate (11) is horizontally arranged on the ground, and a rod frame (14) is fixed on the top surface of the bottom plate (11), the lifting member (2) comprises a sliding frame (21), the sliding frame (21) is vertically fixed on the top surface of the rod frame (14), and a lifting slider (23) is vertically slidably installed in the sliding frame (21), a stud (24) is horizontally fixed on the front end surface of the lifting slider (23), and a screw barrel (25) is threadedly assembled on the stud (24), and the end of the screw barrel (25) is horizontally fixed. A rotating drum (26) is provided, the clamping member (3) comprising a clamping frame (31), the clamping frame (31) being vertically arranged at the end of the rotating drum (26), and a rotating column (32) being horizontally fixed to one end of the clamping frame (31) close to the rotating drum (26), and the rotating column (32) being rotatably mounted in the rotating drum (26), a screw hole frame (33) being horizontally fixed to one end of the clamping frame (31) away from the rotating column (32), and a clamping screw (34) being assembled through a horizontal thread on the screw hole frame (33), a connecting cylinder (4) being inserted into the clamping frame (31), and the connecting cylinder (4) being squeezed into the clamping frame (31) through the clamping screw (34).

2. The fixing bracket for in-situ testing of engineering investigation according to claim 1, characterized in that: A level (13) is horizontally fixed in the middle of the top surface of the bottom plate (11), and two screw seats (111) are symmetrically and vertically fixed at both ends of the bottom plate (11), and a support screw rod (12) is assembled through a vertical thread in the screw seat (111).

3. The fixing bracket for in-situ testing of engineering investigation according to claim 2, characterized in that: Insertion rods are vertically fixed on both sides of the rod frame (14), and counterweight blocks (15) are vertically slidably inserted on the insertion rods of the rod frame (14).

4. The fixing bracket for in-situ testing of engineering investigation according to claim 1 is characterized in that: An adjusting screw rod (22) is vertically rotatably connected in the sliding frame (21), a screw hole (231) is vertically penetrated through the middle of the lifting sliding block (23), and the screw hole (231) is threadedly penetrated and connected with the adjusting screw rod (22).

5. The fixing bracket for in-situ testing of engineering investigation according to claim 1 is characterized in that: A through hole is vertically provided on the top surface of the outer circumferential surface of the rotating drum (26), and a positioning column (27) is slidably inserted into the through hole of the rotating drum (26).

6. The fixing bracket for in-situ testing of engineering investigation according to claim 5, characterized in that: A plurality of positioning holes (321) are evenly and vertically formed on the outer circumferential surface of the rotating column (32), and the positioning holes (321) are plugged into the positioning columns (27) to limit the position of the rotating column (32) in the rotating drum (26).

7. The fixing bracket for in-situ testing of engineering investigation according to claim 6, characterized in that: A spring (28) is vertically sleeved on the outside of the positioning column (27), and two ends of the spring (28) are respectively fixed to the end of the positioning column (27) and the outer circumferential surface of the rotating drum (26).

8. The fixing bracket for in-situ testing of engineering investigation according to claim 1, characterized in that: A rubber sheet (36) is fixed on both the card frame (31) and the pressure plate (35).

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