Pavement slope lofting measurement device

Abstract

The utility model relates to a road slope lofting measuring device which comprises a base and a telescope, a supporting frame is arranged on the base, a supporting assembly is arranged at the bottom in the supporting frame, and the telescope is rotationally arranged between the upper ends of the two sides of the supporting frame through an adjusting assembly. The telescope can rotate to any position within a preset angle range around the rotating joint of the telescope and the support frame and is locked, a support seat is slidably arranged at the bottom of the telescope, the bottom of the support seat is connected with a support assembly, and the bottom of the support assembly is connected with the bottom of the support frame. The leveling rod drives the telescope to rotate relative to the supporting frame through the adjusting assembly and controls the telescope to observe the corresponding angle, the leveling rod is simple in structure and flexible and convenient to use and operate, meanwhile, through sliding fit of the supporting assembly and the supporting base, the supporting base and the telescope can be stably supported, and the working efficiency is improved. The telescope is more stable during observation and use, and the accuracy of a measurement result is effectively ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring equipment, in particular to a road surface slope lofting measurement device. Background Technique

[0002] The longitudinal profile line type of a highway route is composed of a series of straight slope sections, and a vertical curve is set at the intersection point (grade change point) of adjacent slope sections. During the construction process, for the center stakes on the same slope section, in addition to lofting according to their respective design elevations, lofting can also be carried out according to the longitudinal slope of the slope section. In the known slope line lofting, a leveling staff is set on the slope line, and the leveling staff is surveyed by a level.

[0003] When the existing road surface slope lofting measurement device is in use, the observation line of sight angle of the telescope is not convenient to adjust. Generally, a pressing screw fixing technology is adopted, and the positioning process is rather troublesome. Moreover, after the telescope finishes the observation, it also needs to be manually slid back to the reset position, and the use is rather cumbersome. In addition, during the adjustment process of the telescope, a large deflection is likely to occur, and its measurement stability is poor. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a road surface slope lofting measurement device in view of the above-mentioned deficiencies of the prior art.

[0005] The technical solution for the utility model to solve the above technical problem is as follows: A road surface slope lofting measurement device includes a base and a telescope. A support frame is arranged on the base. A support assembly is arranged at the inner bottom of the support frame. The telescope is rotationally arranged between the upper ends on both sides of the support frame through an adjustment assembly and can rotate to any position within a preset angle range around the rotational connection between the two and be locked. A support seat is slidably arranged at the bottom of the telescope. The bottom of the support seat is connected to the support assembly, and the bottom of the support assembly is connected to the bottom of the support frame.

[0006] The beneficial effect of the utility model is that: For the road surface slope lofting measurement device of the utility model, the telescope is driven to rotate relative to the support frame through the adjustment assembly to control the leveling staff at the corresponding observation angle of the telescope. Its structure is simple, and the use and operation are flexible and convenient. At the same time, through the sliding cooperation between the support assembly and the support seat, a stable support effect can be exerted on the support seat and the telescope, ensuring that the telescope is more stable during the observation use and effectively guaranteeing the accuracy of the measurement result.

[0007] On the basis of the above technical solution, the utility model can also be improved as follows:

[0008] Further: Rotating shafts are respectively arranged in the middle parts of both sides of the telescope along the direction of the connection line between both sides of the support frame. Connecting screw sleeves are arranged at the ends of the rotating shafts. Installation grooves are arranged in the middle parts of the upper ends of both sides of the support frame. Ratchet grooves are arranged in the installation grooves. The rotating shafts extend into the corresponding installation grooves. The adjusting assembly is arranged at the upper end of one side of the support frame, and one end of the adjusting assembly close to the ratchet groove is clamped in the ratchet groove to lock or unlock the rotating shaft.

[0009] The beneficial effect of the above further solution is that: through the cooperation of the rotating shaft and the installation groove, it is convenient for the telescope to rotate around the rotating shaft. At the same time, through the clamping cooperation of the adjusting assembly and the ratchet groove, the locking or unlocking of the rotating shaft is realized, so as to facilitate the layout measurement of different road surface slopes and lock during measurement to ensure the accuracy of the measurement result.

[0010] Further: The adjusting assembly includes a spline shaft and a spline sleeve. The spline shaft is connected to the connecting screw sleeve. A first compression spring is sleeved on the spline shaft. One end of the spline sleeve close to the ratchet groove is provided with a ratchet claw matching the ratchet groove. The first compression spring can drive the spline sleeve to slide along the spline shaft towards the other side of the support frame, so that the ratchet claw is clamped in the ratchet groove and locks the rotating shaft. An adjusting knob is sleeved on the other end of the spline sleeve.

[0011] The beneficial effect of the above further solution is that: through the threaded connection between the spline shaft and the connecting screw sleeve, it is convenient for the spline shaft and the rotating shaft to form a transmission connection mechanism. At the same time, the first compression spring drives the spline sleeve to move along the spline shaft, so that the ratchet claw on the spline sleeve cooperates with the ratchet groove to complete the locking of the rotating shaft by the adjusting assembly.

[0012] Further: A connecting stud is arranged at one end of the spline shaft close to the connecting screw sleeve. The connecting stud is threadedly connected to the connecting screw sleeve. A circular baffle is arranged at the other end of the spline shaft. The first compression spring is located between the spline shaft and the circular baffle.

[0013] The beneficial effect of the above further solution is that: through the connecting stud, it is convenient for the spline shaft to be connected to the connecting screw sleeve on the rotating shaft, and it is convenient for the telescope to adjust the measurement angle under the cooperation of the adjusting assembly.

[0014] Further: A scale plate is arranged on one side of the telescope close to the adjusting assembly. A pointer is arranged at a position on the support frame close to the adjusting assembly corresponding to the scale plate.

[0015] The beneficial effects of the above further solution are as follows: By arranging the telescope on one side of the telescope and arranging a pointer on the corresponding side of the support frame, the rotation angle can be accurately known in real time during the rotation of the telescope, which is convenient for measurement.

[0016] Further: An installation plate is arranged on the other side of the telescope. A reset component is arranged on the installation plate. A connecting frame is arranged on the side of the support frame away from the adjusting component. A limiting groove is arranged on the connecting frame. The reset component is clamped with the limiting groove and can drive the installation plate to drive the telescope to reset after the adjusting component unlocks the rotating shaft.

[0017] The beneficial effects of the above further solution are as follows: By arranging the reset component on the installation plate, the installation plate can be driven to drive the telescope to reset after unlocking the rotating shaft, saving the trouble of manually sliding the telescope back to reset, thereby simplifying the overall use process of the detection device and making the structure more reasonable.

[0018] Further: The reset component includes an even number of fixed columns symmetrically arranged on the installation plate, tension springs with the same number as the fixed columns and corresponding to them one by one, and limiting blocks with the same number as the fixed columns and matching the limiting groove. One end of the tension spring is connected to the corresponding fixed column, and the other end of the tension spring is correspondingly provided with the limiting block, and the limiting block is clamped in the limiting groove. When the adjusting component unlocks the rotating shaft, the tension spring can drive the fixed column to drive the installation plate together with the telescope to reset.

[0019] The beneficial effects of the above further solution are as follows: By arranging the limiting block, with the cooperation of the limiting block and the limiting groove, and with the help of the fixed column, after unlocking the rotating shaft, the installation plate is driven to drive the telescope to rotate and reset by the resilience of the tension spring, simplifying the operation process. By arranging the

[0020] Further: A connecting bolt penetrates through the support base and is connected to the bottom of the telescope, and the support base is fixed to the bottom of the telescope. A guiding sliding groove is arranged at the bottom of the support base. A guiding slider is slidably installed in the guiding sliding groove, and the guiding slider is connected to the upper end of the support component.

[0021] The beneficial effects of the above further solution are as follows: By arranging the connecting bolt, the support base can be conveniently fixed to the bottom of the telescope. By arranging the guiding sliding groove and the guiding slider, it can play a guiding and limiting role during the rotation of the telescope, ensuring the accuracy of the measurement result.

[0022] Further: The support assembly includes connecting double ears, a support circular plate, a limiting slide rod, and a second compression spring. A support sleeve is provided at the bottom of the support frame. The lower end of the limiting slide rod is inserted into the support sleeve. The support circular plate is installed at the upper end of the limiting slide rod. The second compression spring is sleeved on the limiting slide rod and is located between the support sleeve and the support circular plate. The connecting double ears are arranged on the support circular plate, and the connecting double ears are rotatably connected to the guiding slider.

[0023] The beneficial effect of the above further solution is that by arranging the connecting double ears to be rotatably connected to the guiding slider, the support seat can be supported, facilitating the support seat together with the telescope to rotate relative to the support assembly. Through the elastic action of the second compression spring, the support seat can be stably supported, ensuring that the telescope 1 is more stable during observation use. Description of the Drawings

[0024] Figure 1 It is an overall axonometric structural schematic diagram of a road surface slope setting-out measurement device according to an embodiment of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the split state of a telescope and an adjustment assembly according to an embodiment of the present invention;

[0026] Figure 3 Of the present invention Figure 2 Partial enlarged structural schematic diagram at A in;

[0027] Figure 4 It is a structural schematic diagram of a support frame according to an embodiment of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the split state of a mounting plate and a connecting frame according to an embodiment of the present invention;

[0029] Figure 6 It is a structural schematic diagram of the split state of a support seat and a support assembly according to an embodiment of the present invention.

[0030] In the drawings, the list of components represented by each reference numeral is as follows:

[0031] 1. Telescope; 101. Rotating shaft; 102. Connecting screw sleeve; 103. Scale plate; 104. Mounting plate; 1041. Fixed column; 1042. Tensile spring; 1043. Connecting block; 1044. Limit block;

[0032] 2. Adjustment assembly; 201. Spline shaft; 2011. Connecting stud; 2012. Circular baffle; 2013. First compression spring; 202. Spline sleeve; 2021. Ratchet pawl; 2022. Adjusting knob;

[0033] 3. Support frame; 301. Installation groove; 302. Ratchet groove; 303. Pointer; 304. Connecting frame; 305. Limiting groove; 306. Support sleeve

[0034] 4. Support base; 401. Connecting bolt; 402. Guide chute; 403. Guide slider

[0035] 5. Support assembly; 501. Connecting double ears; 502. Support circular plate; 503. Limiting slide bar; 504. Second compression spring

[0036] 6. Base Detailed implementation manners

[0037] The principles and features of the present utility model will be described below in conjunction with the accompanying drawings. The examples given are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0038] As Figures 1 to 6 shown, a road surface slope setting-out measurement device includes a base 6 and a telescope 1. A support frame 3 is provided on the base 6. A support assembly 5 is provided at the inner bottom of the support frame 3. The telescope 1 is rotatably arranged between the upper ends on both sides of the support frame 3 through an adjusting assembly 2 and can rotate to any position within a preset angle range around the rotation connection between the two and be locked. A support base 4 is slidably arranged at the bottom of the telescope 1. The bottom of the support base 4 is connected to the support assembly 5, and the bottom of the support assembly 5 is connected to the bottom of the support frame 3.

[0039] In one or more embodiments of the present utility model, rotating shafts 101 are respectively arranged in the middle of both sides of the telescope 1 along the direction of the connection line between both sides of the support frame 3. Connecting screw sleeves 102 are arranged at the ends of the rotating shafts 101. Installation grooves 301 are arranged in the middle of the upper ends on both sides of the support frame 3. Ratchet grooves 302 are arranged in the installation grooves 301. The rotating shafts 101 extend into the corresponding installation grooves 301. The adjusting assembly 2 is arranged at the upper end on one side of the support frame 3, and one end of the adjusting assembly 2 close to the ratchet groove 302 is clamped in the ratchet groove 302 to lock or unlock the rotating shaft 101. By the cooperation of the rotating shaft 101 and the installation groove 301, it is convenient for the telescope 1 to rotate around the rotating shaft 101. At the same time, through the clamping cooperation of the adjusting assembly 2 and the ratchet groove 302, the locking or unlocking of the rotating shaft 101 is realized, so as to facilitate the setting-out measurement of different road surface slopes and lock during the measurement to ensure the accuracy of the measurement results. Here, the rotating shafts 101 in the middle of both sides of the telescope 1 are symmetrically arranged.

[0040] In one or more embodiments of the present utility model, the adjusting assembly 2 includes a spline shaft 201 and a spline sleeve 202. The spline shaft 201 is connected to the connecting screw sleeve 102. A first compression spring 2013 is sleeved on the spline shaft 201. One end of the spline sleeve 202 close to the ratchet slot 302 is provided with a ratchet pawl 2021 that matches the ratchet slot 302. The first compression spring 2013 can drive the spline sleeve 202 to slide along the spline shaft 201 toward the other side of the support frame 3, so that the ratchet pawl 2021 is engaged in the ratchet slot 302 and locks the rotating shaft 101. The other end of the spline sleeve 202 is sleeved with an adjusting knob 2022. By threadedly connecting the spline shaft 201 with the connecting screw sleeve 102, it is convenient to form a transmission connection mechanism between the spline shaft 201 and the rotating shaft 101. At the same time, the first compression spring 2013 drives the spline sleeve 202 to move along the spline shaft 201, so that the ratchet pawl 2021 on the spline sleeve 202 cooperates with the ratchet slot 302 to complete the locking of the rotating shaft 101 by the adjusting assembly 2.

[0041] In one or more embodiments of the present utility model, a connecting stud 2011 is provided at one end of the spline shaft 201 close to the connecting screw sleeve 102. The connecting stud 2011 is threadedly connected to the connecting screw sleeve 102. The other end of the spline shaft 201 is provided with a circular baffle 2012. The first compression spring 2013 is located between the spline shaft 201 and the circular baffle 2012. Through the connecting stud 2011, it is convenient to connect the spline shaft 201 with the connecting screw sleeve 102 on the rotating shaft 101, and it is convenient to adjust the measurement angle of the telescope 1 under the cooperation of the adjusting assembly 2.

[0042] In one or more embodiments of the present utility model, a scale plate 103 is provided on one side of the telescope 1 close to the adjusting assembly 2. A pointer 303 is provided at a position on the support frame 3 close to the adjusting assembly 2 corresponding to the scale plate 103. By providing the scale plate 103 on one side of the telescope 1 and the pointer 303 on the corresponding side of the support frame 3, the rotation angle can be accurately known in real time during the rotation of the telescope 1, which is convenient for measurement.

[0043] Optionally, in one or more embodiments of the present utility model, an installation plate 104 is provided on the other side of the telescope 1. A reset assembly is provided on the installation plate 104. A connecting frame 304 is provided on the side of the support frame 3 away from the adjustment assembly. A limiting groove 305 is provided on the connecting frame 304. The reset assembly is snap-fitted with the limiting groove 305 and can drive the installation plate 104 to drive the telescope 1 to reset after the adjustment assembly 2 unlocks the rotating shaft 101. By providing the reset assembly on the installation plate 104, the installation plate 104 can be driven to drive the telescope 1 to reset after unlocking the rotating shaft 101, saving the trouble of manually sliding the telescope 1 back to its original position, thereby simplifying the overall use process of the detection device and making the structure more reasonable.

[0044] Here, the installation plate 104 and the scale plate 103 are distributed symmetrically to ensure the overall force balance of the support frame 3.

[0045] Specifically, in one or more embodiments of the present utility model, the reset assembly includes two fixing columns 1041 symmetrically arranged on the installation plate 104, two tension springs 1042, and two limiting blocks 1044 matching the limiting groove 305. One end of the tension spring 1042 is connected to the corresponding fixing column 1041. A connecting block 1043 is correspondingly provided at the other end of the tension spring 1042. The limiting block 1044 is provided at the top of the connecting block 1403, and the limiting block 1044 is snap-fitted in the limiting groove 305. When the adjustment assembly 2 unlocks the rotating shaft 101, the tension spring 1042 can drive the fixing column 1041 to drive the installation plate 104 together with the telescope 1 to reset. By providing the limiting block 1044, with the cooperation of the limiting block 1044 and the limiting groove 305, and with the help of the fixing column 1041, after unlocking the rotating shaft 101, the resilience of the tension spring 1042 drives the installation plate 104 to drive the telescope 1 to rotate back to its original position, simplifying the operation process. By providing the

[0046] In one or more embodiments of the present utility model, a connecting bolt 401 is disposed through the support base 4. The connecting bolt 401 is connected to the bottom of the telescope 1 and fixes the support base 4 to the bottom of the telescope 1. A guiding sliding groove 402 is provided at the bottom of the support base 4. A guiding sliding block 403 is slidably installed in the guiding sliding groove 402, and the guiding sliding block 403 is connected to the upper end of the support assembly 5. By providing the connecting bolt 401, the support base 4 can be conveniently fixed to the bottom of the telescope 1. By providing the guiding sliding groove 402 and the guiding sliding block 403, a guiding and limiting effect can be achieved during the rotation of the telescope 1, ensuring the accuracy of the measurement results.

[0047] In one or more embodiments of the present utility model, the support assembly 5 includes connecting double ears 501, a support circular plate 502, a limiting sliding rod 503, and a second compression spring 504. A support sleeve 306 is provided at the bottom of the support frame 3. The lower end of the limiting sliding rod 503 is inserted into the support sleeve 306. The support circular plate 502 is installed at the upper end of the limiting sliding rod 503. The second compression spring 504 is sleeved on the limiting sliding rod 503 and is located between the support sleeve 306 and the support circular plate 502. The connecting double ears 501 are provided on the support circular plate 502, and the connecting double ears 501 are rotatably connected to the guiding sliding block 403. By providing the rotatable connection between the connecting double ears 501 and the guiding sliding block 403, the support base 4 can be supported, facilitating the rotation of the support base 4 together with the telescope 1 relative to the support assembly 5. Through the elastic action of the second compression spring 504, a stable support effect can be achieved on the support base 4, ensuring that the telescope 1 is more stable during observation.

[0048] The road surface slope lofting measurement device of the present utility model needs to place the measurement device at the bottom of the slope surface for elevation lofting during the measurement process. At the same time, multiple groups of leveling rods are erected on the slope surface. Then, the telescope 1 is used to observe the leveling rods at various angles on the slope surface. By manually rotating the adjustment knob 2022, the spline sleeve 202 and the spline shaft 201 cooperate with each other, enabling the telescope 1 to deflect around the rotation axis 101, controlling the telescope 1 to observe the leveling rods at corresponding angles, and utilizing the elastic action of the first compression spring 2013, which can push the spline sleeve 202 to slide along the spline shaft 201 towards the connecting nut 102 side, so that the ratchet pawl 2021 is engaged in the ratchet groove 302, realizing the self-locking process of the rotation axis 101, and enabling quick positioning of the telescope 1; by engaging the limit block 1044 with the limit groove 305 and utilizing the elastic return action of the two tension springs 1042, after releasing the self-locking of the rotation axis 101, the mounting plate 104 can be pulled to make the telescope 1 slide back to its original position; with the guiding slider 403 and the guiding chute 402 in sliding fit, the limit slide rod 503 is inserted into the support sleeve 306, and utilizing the elastic action of the second compression spring 504, the support base 4 can be stably supported, ensuring that the telescope 1 is more stable during observation and use.

[0049] In practice, by manually rotating the adjustment knob 2022, the spline sleeve 202 and the spline shaft 201 cooperate with each other, enabling the telescope 1 to deflect around the rotation axis 101, controlling the telescope 1 to observe the leveling rods at corresponding angles, and utilizing the elastic action of the first compression spring 2013, which can push the spline sleeve 202 to slide leftward along the spline shaft 201, so that the ratchet pawl 2021 is engaged in the ratchet groove 302, realizing the self-locking process of the rotation axis 101, and enabling quick positioning of the telescope 1. Its structure is simple, and the use and operation are flexible and convenient.

[0050] The road surface slope lofting measurement device of the present utility model can make the telescope 1 deflect around the rotation axis 101 by manually rotating the adjustment knob 2022, with the spline sleeve 202 and the spline shaft 201 cooperating with each other, controlling the telescope 1 to observe the leveling rods at corresponding angles, and utilizing the elastic action of the first compression spring 2013, which can push the spline sleeve 202 to slide along the spline shaft 201 towards the connecting nut 102 side, so that the ratchet pawl 2021 is engaged in the ratchet groove 302, realizing the self-locking process of the rotation axis 101, and enabling quick positioning of the telescope 1. Its structure is simple, and the use and operation are flexible and convenient;

[0051] In addition, due to the provision of the mounting plate 104 and the connecting frame 304, the limiting block 1044 is engaged with the limiting groove 305, and by utilizing the resilience of the two tension springs 1042, after the self-locking of the rotating shaft 101 is released, the mounting plate 104 can be pulled to rotate the telescope 1 back to its original position, which eliminates the trouble of manually sliding the telescope back to its original position, thus simplifying the overall usage process of the detection device and making the structure more reasonable;

[0052] In addition, the guiding slider 403 and the guiding chute 402 are in sliding fit, the limiting slide rod 503 is inserted into the support sleeve 306, and by utilizing the elastic action of the second compression spring 504, the support seat 4 can be stably supported, ensuring that the telescope 1 is more stable during observation and effectively guaranteeing the accuracy of the measurement results.

[0053] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A road surface slope setting out measuring device, characterized in that: The invention comprises a base (6) and a telescope (1), wherein a support frame (3) is arranged on the base (6), a support assembly (5) is arranged at the bottom of the support frame (3), the telescope (1) is rotatably arranged between the upper ends of both sides of the support frame (3) through an adjustment assembly (2), and can be rotated around the rotation connection between the two to any position within a preset angle range and locked, a support seat (4) is slidably arranged at the bottom of the telescope (1), the bottom of the support seat (4) is connected to the support assembly (5), and the bottom of the support assembly (5) is connected to the bottom of the support frame (3).

2. The road surface slope setting out and measuring device according to claim 1, characterized in that: A rotating shaft (101) is respectively arranged at the middle of both sides of the telescope (1) along the direction of the line connecting the two sides of the support frame (3); a connecting screw sleeve (102) is arranged at the end of the rotating shaft (101); a mounting groove (301) is arranged at the middle of the upper end of both sides of the support frame (3); a ratchet groove (302) is arranged in the mounting groove (301); the rotating shaft (101) extends into the corresponding mounting groove (301); the adjusting component (2) is arranged at the upper end of one side of the support frame (3); and one end of the adjusting component (2) close to the ratchet groove (302) is clamped in the ratchet groove (302) to lock or unlock the rotating shaft (101).

3. The road surface slope setting out and measuring device according to claim 2, characterized in that: The adjustment component (2) comprises a spline shaft (201) and a spline sleeve (202); the spline shaft (201) is connected to the connecting screw sleeve (102); a first compression spring (2013) is sleeved on the spline shaft (201); a ratchet pawl (2021) matching the ratchet groove (302) is arranged at one end of the spline sleeve (202) close to the ratchet groove (302); the first compression spring (2013) can drive the spline sleeve (202) to slide along the spline shaft (201) toward the other side of the support frame (3), so that the ratchet pawl (2021) is engaged in the ratchet groove (302) and locks the rotating shaft (101); and an adjustment knob (2022) is sleeved on the other end of the spline sleeve (202).

4. The road surface slope setting out and measuring device according to claim 3 is characterized in that: A connecting stud (2011) is provided at one end of the spline shaft (201) close to the connecting nut (102), and the connecting stud (2011) is threadedly connected to the connecting nut (102). A circular baffle (2012) is provided at the other end of the spline shaft (201), and the first compression spring (2013) is located between the spline shaft (201) and the circular baffle (2012).

5. The road surface slope setting out and measuring device according to claim 2, characterized in that: A scale plate (103) is provided on one side of the telescope (1) close to the adjustment component (2), and a pointer (303) is provided on one side of the support frame (3) close to the adjustment component (2) at a position corresponding to the scale plate (103).

6. The road surface slope setting out and measuring device according to claim 2, characterized in that: A mounting plate (104) is provided on the other side of the telescope (1), a reset component is provided on the mounting plate (104), a connecting frame (304) is provided on the side of the support frame (3) away from the adjustment component, a limiting groove (305) is provided on the connecting frame (304), the reset component is engaged with the limiting groove (305), and can drive the mounting plate (104) to reset the telescope (1) after the adjustment component (2) unlocks the rotating shaft (101).

7. The road surface slope setting out and measuring device according to claim 6, characterized in that: The reset assembly comprises an even number of fixed columns (1041) symmetrically arranged on the mounting plate (104), tension springs (1042) having the same number and corresponding to the fixed columns (1041), and limiting blocks (1044) having the same number and matching the limiting grooves (305) as the fixed columns (1041), one end of the tension spring (1042) being connected to the corresponding fixed column (1041), the other end of the tension spring (1042) being correspondingly provided with the limiting block (1044), and the limiting block (1044) being clamped in the limiting groove (305), and when the adjusting assembly (2) unlocks the rotating shaft (101), the tension spring (1042) can drive the fixed column (1041) to drive the mounting plate (104) and the telescope (1) to reset.

8. The road surface slope setting out and measuring device according to claim 1, characterized in that: The support seat (4) is provided with a connecting bolt (401) which is connected to the bottom of the telescope (1) and fixes the support seat (4) to the bottom of the telescope (1). The bottom of the support seat (4) is provided with a guide groove (402), a guide slider (403) is slidably installed in the guide groove (402), and the guide slider (403) is connected to the upper end of the support assembly (5).

9. The road surface slope setting out and measuring device according to claim 8, characterized in that: The support assembly (5) comprises connecting ears (501), a supporting circular plate (502), a limiting slide bar (503) and a second compression spring (504); a supporting sleeve (306) is arranged at the bottom of the support frame (3); the lower end of the limiting slide bar (503) is inserted into the supporting sleeve (306); the supporting circular plate (502) is installed on the upper end of the limiting slide bar (503); the second compression spring (504) is sleeved on the limiting slide bar (503) and is located between the supporting sleeve (306) and the supporting circular plate (502); the connecting ears (501) are arranged on the supporting circular plate (502), and the connecting ears (501) are rotatably connected to the guide slider (403).

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