Distance measuring device for geological scenograph

Abstract

The invention relates to the technical field of geological testing equipment, and discloses a distance measuring device for a geological scenograph, which comprises a connecting plate connected with a machine body, a rotating plate rotationally connected to the connecting plate, and a distance measuring wheel set mounted on the rotating plate, a connecting shaft is arranged on the connecting plate, the rotating plate is rotationally connected to the connecting plate through the connecting shaft, a torsional spring is arranged on the outer wall of the connecting shaft, one end of the torsional spring is connected to the connecting plate, and the other end of the torsional spring is connected to the rotating plate; a positioning piece is arranged on the connecting plate, the connecting shaft is connected to the connecting plate through the positioning piece, a sleeve is rotationally arranged on the outer wall of the connecting shaft, and the torsional spring is connected to the outer wall of the sleeve. The testing effect of the distance measuring wheel set can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of geological testing equipment, and in particular to a distance measuring device for a geological perspective instrument. Background Art

[0002] A geological perspective meter, also known as a geological radar or ground penetrating radar, uses high-frequency electromagnetic waves in the form of wide-band short pulses to transmit electromagnetic waves from the surface through a transmitting antenna to the strata. It is an earth detection instrument widely used in multiple disciplines.

[0003] The geological perspective instrument mainly consists of a body and a measuring wheel installed on the body. When detecting distance in engineering, the measuring wheel is pressed against the concrete surface. As the radar moves forward, the friction between the measuring wheel and the concrete surface drives the measuring wheel to rotate, generating electronic pulses to trigger the radar host to collect data.

[0004] In tunnel lining inspection, the radar needs to be held at the top for inspection. During the operation, it is not easy to keep the measuring wheel close to the concrete surface. During the inspection, it is easy for the measuring wheel to fail to rotate with the movement of the instrument, resulting in large errors in the inspection data. Summary of the invention

[0005] In order to improve detection accuracy and enhance the rotation effect of the distance measuring wheel, the present application provides a distance measuring device for a geological perspective instrument.

[0006] This application adopts the following technical solutions: A distance measuring device for a geological perspective instrument comprises a connecting plate for connecting with a machine body, a rotating plate rotatably connected to the connecting plate, and a distance measuring wheel group installed on the rotating plate; a connecting shaft is arranged on the connecting plate, the rotating plate is rotatably connected to the connecting plate via the connecting shaft, and a torsion spring is arranged on the outer wall of the connecting shaft, one end of the torsion spring is connected to the connecting plate, and the other end is connected to the rotating plate; a positioning piece is arranged on the connecting plate, the connecting shaft is connected to the connecting plate via the positioning piece, and a sleeve is rotatably arranged on the outer wall of the connecting shaft, and the torsion spring is connected to the outer wall of the sleeve.

[0007] By adopting the above technical solution, during the test, the distance measuring wheel set abuts against the test surface, and under the action of the torsion spring, the distance measuring wheel set can be closely abutted against the test surface, thereby reducing the slippage of the distance measuring wheel set and improving the accuracy of the test. The connecting shaft is connected to the connecting plate through the positioning piece, and the connecting shaft can be installed and disassembled through the positioning piece, which is convenient for replacement and maintenance of the device.

[0008] Optionally, two extension seats are provided on the connecting plate, two convex seats are provided on the rotating plate, the connecting shaft passes through the extension seats and the convex seats, and the two convex seats are located between the two extension seats, and the positioning member is connected to a side of one of the extension seats away from the convex seat.

[0009] By adopting the above technical solution, the connecting shaft is installed on the two extension seats, and the convex seat is rotatably connected to the connecting shaft, thereby completing the rotatable installation of the rotating plate.

[0010] Optionally, the positioning member includes a positioning cylinder and an elastic portion connected to the positioning cylinder and the surface of the extension seat; a positioning block is provided at the end of the connecting shaft, the inner wall of the positioning cylinder is provided with an extension groove extending in a direction parallel to the axial line, the side wall of the extension groove is provided with a circumferential groove extending in a circumferential direction of the positioning cylinder, and the side wall of the circumferential groove is provided with a clamping groove; the end of the connecting shaft passes through the positioning cylinder, and the positioning block moves in the extension groove, and the connecting shaft is rotated, and under the action of the elastic portion, the positioning block is clamped in the clamping groove, and a contact seat is provided at the end of the connecting shaft away from the positioning block, and the contact seat abuts against the surface of the extension seat.

[0011] By adopting the above technical solution, after the connecting shaft passes through the extension seat, the positioning block is finally clamped in the clamping groove, and under the action of the elastic part, the positioning block is tightly pressed in the clamping groove, so that the positioning block is not easy to be separated from the clamping groove.

[0012] Optionally, the connecting shaft has an internal hollow structure, a first positioning rod is slidably provided on the side wall of the connecting shaft, and a first elastic member is provided on the side wall of the first positioning rod, and the first positioning rod slides through the positioning block; a plug-in groove is provided on the inner wall of the clamping groove, and an inner rod is installed in the connecting shaft, and when the inner rod is installed in the connecting shaft, it can drive the first positioning rod to slide and be plugged into the plug-in groove, and the first elastic member is compressed.

[0013] By adopting the above technical solution, when the inner rod is installed in the connecting shaft, the inner rod can drive the first positioning rod to slide and be inserted into the insertion groove, thereby connecting the positioning block and the positioning cylinder together and improving the stability of the connecting shaft.

[0014] Optionally, a threaded hole is formed on the side wall of the abutment seat, and one end of the inner rod is inserted into the connecting shaft and threadedly connected to the threaded hole.

[0015] By adopting the above technical solution, the installation of the inner rod is facilitated.

[0016] Optionally, a support rod is provided at one end of the positioning tube facing the extension seat, and a threaded sleeve is threadedly connected to the outer wall of the support rod. A positioning groove is provided on the extension seat, and the end of the threaded sleeve can abut against the positioning groove by rotating the threaded sleeve.

[0017] By adopting the above technical solution, the end of the threaded sleeve can abut against the positioning groove, so that the positioning cylinder is not easy to rotate, and then the connecting shaft is not easy to rotate, thereby improving the stability of the connecting shaft connection.

[0018] Optionally, an annular groove is provided on the inner wall of the sleeve, and a second positioning rod is slidably connected to the outer wall of the connecting shaft. A second elastic member is connected between the second positioning rod and the connecting shaft. When the inner rod is installed on the connecting shaft, the second positioning rod passes through the connecting shaft and extends into the annular groove, and the second elastic member is compressed.

[0019] By adopting the above technical solution, when the inner rod is installed in the connecting shaft, the second positioning rod extends into the annular groove, so that the sleeve can rotate on the outer wall of the connecting shaft without axial deviation, thereby improving the stability of the sleeve rotation.

[0020] Optionally, the ends of the first positioning rod and the second positioning rod are of rough structure, and the side wall of the inner rod is also of rough structure, and the ends of the first positioning rod and the second positioning rod are both in contact with the surface of the inner rod.

[0021] By adopting the above technical solution, the ends of the first positioning rod and the second positioning rod are both rough structures, which can play the effect of limiting the rotation of the inner rod, thereby improving the stability of the inner rod.

[0022] Optionally, one end of the first positioning rod and the second positioning rod close to the inner rod is an arc-shaped structure.

[0023] In summary, the present application includes at least one of the following beneficial effects: 1. During the test, the torsion spring can provide the force for the rotating plate, so that the distance measuring wheel set can better contact the test surface, thereby improving the accuracy of the distance measuring wheel set measurement; 2. The connecting shaft can be detachably mounted on the connecting plate, so that each component can be easily installed and disassembled, and the components can be easily repaired and replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application; Figure 2 is a schematic diagram of a connecting plate and a rotating plate in an embodiment of the present application; Figure 3 is an exploded schematic diagram of a connecting shaft in an embodiment of the present application; Figure 4 yes Figure 3 The enlarged schematic diagram of point A in the middle; Figure 5 is an exploded schematic diagram of a positioning member in an embodiment of the present application; Figure 6 yes Figure 5 The enlarged schematic diagram of point B in the middle; Figure 7 It is a schematic cross-sectional view of the connecting shaft in the embodiment of the present application.

[0025] Explanation of the accompanying drawings: 1. body; 2. connecting plate; 3. rotating plate; 4. distance measuring wheel group; 5. connecting shaft; 6. torsion spring; 7. positioning member; 71. positioning cylinder; 72. elastic part; 8. sleeve; 9. extension seat; 10. convex seat; 11. extension groove; 12. circumferential groove; 13. clamping groove; 14. abutment seat; 15. first positioning rod; 16. first elastic member; 17. positioning block; 18. plug-in groove; 19. inner rod; 20. threaded hole; 21. support rod; 22. threaded sleeve; 23. positioning groove; 24. annular groove; 25. second positioning rod; 26. second elastic member; 27. clearance groove; 28. block. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-7 This application is described in further detail.

[0027] The present application embodiment discloses a distance measuring device for a geological perspective instrument. Figure 1 and Figure 2 The distance measuring device includes a connecting plate 2 installed on one side of the machine body 1, a rotating plate 3 rotatably connected to the connecting plate 2, and a distance measuring wheel set 4 installed on the rotating plate 3. The distance measuring wheel set 4 is a prior art and will not be described in detail here. A connecting shaft 5 is installed on the connecting plate 2, and the rotating plate 3 is rotatably connected to the connecting plate 2 through the connecting shaft 5, and the connecting plate 2 is fixed to the machine body 1 by bolts or the like. A torsion spring 6 is also installed on the outer wall of the connecting shaft 5, one end of the torsion spring 6 abuts against the surface of the connecting plate 2, and the other end abuts against the surface of the rotating plate 3, and the distance measuring wheel set 4 is located on the side of the rotating plate 3 away from the torsion spring 6.

[0028] When testing, the distance measuring wheel set 4 is in contact with the test surface, and the rotating plate 3 is pressed against the test surface and moves toward the connecting plate 2, while the torsion spring 6 is in a compressed state, so that the torsion spring 6 increases the force of the distance measuring wheel set 4 against the test surface, thereby improving the accuracy of the test of the distance measuring wheel set 4.

[0029] Further, see Figure 2 and Figure 3, a positioning member 7 is installed on the connecting plate 2, and the connecting shaft 5 is detachably connected to the connecting plate 2 through the positioning member 7. Two mutually parallel extension seats 9 are fixed on the connecting plate 2, and the connecting shaft 5 passes through the two extension seats 9. Two convex seats 10 are fixed on one end of the rotating plate 3 close to the connecting plate 2, and the two convex seats 10 extend between the two extension seats 9, and the convex seats 10 abut against the surfaces of the adjacent extension seats 9. The connecting shaft 5 passes through the convex seats 10, so that the convex seats 10 can rotate on the connecting shaft 5.

[0030] In a further embodiment, the positioning member 7 includes a positioning cylinder 71 and an elastic portion 72 installed on the positioning cylinder 71 and one of the extension seats 9 on the side away from the protrusion 10. The elastic portion 72 is a spring, and one end of the spring is welded and fixed to the surface of the extension seat 9, and the other end is welded and fixed to the end face of the positioning cylinder 71.

[0031] Combination Figure 4 and Figure 5 A positioning block 17 is symmetrically fixed to the outer wall of one end of the connecting shaft 5, and a contact seat 14 is fixed to the end of the connecting shaft 5 away from the positioning block 17. When the connecting shaft 5 passes through the extension seat 9, the contact seat 14 can contact the surface of one of the extension seats 9, and the positioning member 7 is installed on the other extension seat 9. The extension seat 9 and the convex seat 10 are correspondingly provided with through holes for the connecting shaft 5 to pass through, and the through holes can be adapted to the connecting shaft 5 and the positioning block 17, so that the connecting shaft 5 can smoothly pass through the extension seat 9 and the convex seat 10. One end of the connecting shaft 5 can pass through the positioning cylinder 71.

[0032] Reference Figure 5 and Figure 6 The inner wall of the positioning cylinder 71 is symmetrically provided with an extension groove 11, which extends along the axial direction of the positioning cylinder 71, and the extension groove 11 is adapted to the positioning block 17. The side wall of the extension groove 11 at one end away from the extension seat 9 is provided with a circumferential groove 12, which extends along the circumference of the positioning cylinder 71. The side wall of the circumferential groove 12 at one end away from the extension groove 11 is also provided with a clamping groove 13, which extends toward the extension seat 9. Figure 3 When the end of the connecting shaft 5 passes through the positioning cylinder 71, the positioning block 17 can move in the extension groove 11, and the abutment seat 14 abuts against the other extension seat 9. Then the positioning cylinder 71 is pressed, so that the elastic part 72 is compressed, and the positioning block 17 corresponds to the position of the circumferential groove 12, and then the connecting shaft 5 is rotated to make the positioning block 17 move to the end of the circumferential groove 12 away from the extension groove 11, and the force on the positioning cylinder 71 is removed, and the positioning block 17 can abut against the clamping groove 13. Therefore, it is not easy for the connecting shaft 5 to be separated from the extension seat 9.

[0033] In a further embodiment, referring to Figure 3 and Figure 7The connecting shaft 5 is an internal hollow structure, and an inner rod 19 is installed in the connecting shaft 5. A first positioning rod 15 is slidably provided on the outer wall of the connecting shaft 5, and the first positioning rod 15 slides along the radial direction of the connecting shaft 5. A first elastic member 16 is sleeved on the outer wall of the first positioning rod 15, and the first elastic member 16 is a spring. One end of the spring is connected to the inner wall of the connecting shaft 5, and the other end is connected to the end of the first positioning rod 15. Figure 4 , the first positioning rod 15 slides through the connecting shaft 5 and simultaneously passes through the positioning block 17. Figure 5 An insertion groove 18 is provided on the inner wall of the snap-fit ​​groove 13. When the inner rod 19 is installed in the connecting shaft 5, the inner rod 19 can drive the first positioning rod 15 to slide, the first elastic member 16 is compressed, and the end of the first positioning rod 15 can be inserted into the insertion groove 18, thereby connecting the positioning cylinder 71 and the positioning block 17 together, and the positioning block 17 is less likely to detach from the positioning cylinder 71.

[0034] Furthermore, a threaded hole 20 is provided on the side wall of the abutment seat 14, and one end of the inner rod 19 is inserted into the connecting shaft 5 and is threadedly connected to the threaded hole 20. The diameter of the inner rod 19 is smaller than the inner diameter of the connecting shaft 5, so that there is a certain gap between the inner rod 19 and the connecting shaft 5, which is convenient for providing a movement space for the first positioning rod 15. The inner rod 19 has a block 28 at one end away from the abutment seat 14, and the block 28 can close the open end of the connecting shaft 5, and part of the block 28 is a hexagonal structure, which is convenient for using a tool to rotate the inner rod 19.

[0035] Further, see Figure 3 and Figure 5 In order to improve the stability of the positioning cylinder 71, a support rod 21 is fixed on the side of the positioning cylinder 71 facing the extension seat 9, and two support rods 21 are symmetrically fixed. A threaded sleeve 22 is threadedly connected on the outer wall of the support rod 21. A positioning groove 23 is provided at the position corresponding to the threaded sleeve 22 on the extension seat 9. The threaded sleeve 22 can be rotated to make the end of the threaded sleeve 22 inserted into the positioning groove 23, or disengaged from the positioning groove 23. When the positioning cylinder 71 needs to be operated, the threaded sleeve 22 is disengaged from the positioning groove 23, so that the positioning cylinder 71 can move. When the connecting shaft 5 is connected, the threaded sleeve 22 abuts against the positioning groove 23, so that the positioning cylinder 71 is not easy to move again.

[0036] Reference Figure 3 and Figure 7, a sleeve 8 is rotatably mounted on the outer wall of the connecting shaft 5, and the main part of the torsion spring 6 is mounted on the outer wall of the sleeve 8. An annular groove 24 is provided on the inner wall of the sleeve 8, and a second positioning rod 25 is mounted on the outer wall of the connecting shaft 5. Two second positioning rods 25 are symmetrically fixed, and the second positioning rods 25 are slidably mounted on the side wall of the connecting shaft 5 along the radial direction of the connecting shaft 5. A second elastic member 26 is mounted on the outer wall of one end of the second positioning rod 25 inside the connecting shaft 5. The second elastic member 26 is a spring, one end of the spring is connected to the inner wall of the connecting shaft 5, and the other end is connected to the end of the second positioning rod 25. When the inner rod 19 is installed in the connecting shaft 5, the inner rod 19 can drive the second positioning rod 25 to slide and extend in the annular groove 24, so that the sleeve 8 is not easy to move along the axis, and the sleeve 8 can rotate on the outer wall of the connecting shaft 5 without deviation. When disassembling, the inner rod 19 is taken out of the connecting shaft 5, and the sleeve 8 can slide on the connecting shaft 5. The inner wall of the sleeve 8 is symmetrically provided with clearance grooves 27, so that the positioning block 17 can pass through the clearance grooves 27, which facilitates the removal of the sleeve 8 from the connecting shaft 5. The diameter of the end of the second positioning rod 25 can be larger than the clearance groove 27, so that the end of the second positioning rod 25 will not enter the clearance groove 27.

[0037] In order to facilitate the inner rod 19 to drive the movement of the first positioning rod 15 and the second positioning rod 25, the ends of the first positioning rod 15 and the second positioning rod 25 are arc-shaped structures. Further, the outer wall of the inner rod 19 and the ends of the first positioning rod 15 and the second positioning rod 25 can be set to a rough structure, such as anti-slip stripes, so that when in use, the ends of the first positioning rod 15 and the second positioning rod 25 are tightly pressed against the outer wall of the inner rod 19, thereby reducing the possibility of the inner rod 19 rotating.

[0038] The implementation principle of the distance measuring device for a geological perspective instrument in the embodiment of the present application is as follows: during testing, the distance measuring wheel set 4 abuts against the test surface, and the torsion spring 6 is compressed, so that the distance measuring wheel set 4 can better abut against the test surface. When installing or replacing, the connecting shaft 5 can be removed.

[0039] 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 distance measuring device for a geological perspective instrument, characterized in that: The invention comprises a connecting plate (2) for connecting to a machine body (1), a rotating plate (3) rotatably connected to the connecting plate (2), and a distance measuring wheel group (4) mounted on the rotating plate (3); a connecting shaft (5) is provided on the connecting plate (2), the rotating plate (3) is rotatably connected to the connecting plate (2) via the connecting shaft (5), and a torsion spring (6) is provided on the outer wall of the connecting shaft (5), one end of the torsion spring (6) is connected to the connecting plate (2), and the other end is connected to the rotating plate (3); a positioning member (7) is provided on the connecting plate (2), the connecting shaft (5) is connected to the connecting plate (2) via the positioning member (7), and a sleeve (8) is rotatably provided on the outer wall of the connecting shaft (5), and the torsion spring (6) is connected to the outer wall of the sleeve (8).

2. A distance measuring device for a geological perspective instrument according to claim 1, characterized in that: Two extension seats (9) are provided on the connecting plate (2), two convex seats (10) are provided on the rotating plate (3), the connecting shaft (5) passes through the extension seats (9) and the convex seats (10), and the two convex seats (10) are located between the two extension seats (9), and the positioning member (7) is connected to a side of one of the extension seats (9) away from the convex seat (10).

3. A distance measuring device for a geological perspective instrument according to claim 2, characterized in that: The positioning member (7) comprises a positioning tube (71) and an elastic portion (72) connected to the positioning tube (71) and the surface of the extension seat (9); a positioning block (17) is provided at the end of the connecting shaft (5); an extension groove (11) extending in a direction parallel to the axis is provided on the inner wall of the positioning tube (71); a circumferential groove (12) extending in a circumferential direction of the positioning tube (71) is provided on the side wall of the extension groove (11); and a clamping member (17) is provided on the side wall of the circumferential groove (12). The end of the connecting shaft (5) passes through the positioning cylinder (71), and the positioning block (17) moves in the extension groove (11) and rotates the connecting shaft (5). Under the action of the elastic portion (72), the positioning block (17) is engaged in the engaging groove (13), and an abutment seat (14) is provided at one end of the connecting shaft (5) away from the positioning block (17), and the abutment seat (14) abuts against the surface of the extension seat (9).

4. A distance measuring device for a geological perspective instrument according to claim 3, characterized in that: The connecting shaft (5) is an internal hollow structure, a first positioning rod (15) is slidably provided on the side wall of the connecting shaft (5), and a first elastic member (16) is provided on the side wall of the first positioning rod (15), and the first positioning rod (15) is slidably passed through the positioning block (17); an insertion groove (18) is provided on the inner wall of the clamping groove (13), and an inner rod (19) is installed in the connecting shaft (5), and when the inner rod (19) is installed in the connecting shaft (5), it can drive the first positioning rod (15) to slide and be inserted into the insertion groove (18), and the first elastic member (16) is compressed.

5. A distance measuring device for a geological perspective instrument according to claim 4, characterized in that: A threaded hole (20) is formed on the side wall of the abutment seat (14), and one end of the inner rod (19) is inserted into the connecting shaft (5) and threadedly connected to the threaded hole (20).

6. A distance measuring device for a geological perspective instrument according to claim 4, characterized in that: A support rod (21) is provided at one end of the positioning tube (71) facing the extension seat (9), and a threaded sleeve (22) is threadedly connected to the outer wall of the support rod (21). A positioning groove (23) is provided on the extension seat (9), and the end of the threaded sleeve (22) can abut against the positioning groove (23) by rotating the threaded sleeve (22).

7. A distance measuring device for a geological perspective instrument according to claim 4, characterized in that: An annular groove (24) is formed on the inner wall of the sleeve (8); a second positioning rod (25) is slidably connected to the outer wall of the connecting shaft (5); a second elastic member (26) is connected between the second positioning rod (25) and the connecting shaft (5); when the inner rod (19) is mounted on the connecting shaft (5), the second positioning rod (25) passes through the connecting shaft (5) and extends into the annular groove (24), and the second elastic member (26) is compressed.

8. A distance measuring device for a geological perspective instrument according to claim 7, characterized in that: The ends of the first positioning rod (15) and the second positioning rod (25) are of rough structure, and the side wall of the inner rod (19) is also of rough structure, and the ends of the first positioning rod (15) and the second positioning rod (25) are both in contact with the surface of the inner rod (19).

9. A distance measuring device for a geological perspective instrument according to claim 8, characterized in that: One end of the first positioning rod (15) and the second positioning rod (25) close to the inner rod (19) is an arc-shaped structure.

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