Engineering survey equipment for road construction

Abstract

This invention discloses an engineering surveying device for road construction, relating to the technical field of road surveying equipment. It includes a mounting base with a through-groove at its center. A sliding column is slidably connected to the inner wall of the mounting base, and a placement plate is rotatably connected to the top of the sliding column. A merging adjustment mechanism is equidistantly arranged at the bottom of the mounting base to allow for synchronous adjustment of the opening angle and extension length when changing surveying equipment. This engineering surveying device for road construction allows for simultaneous adjustment of the three support legs by pressing down the adjustment handle to unlock the adjustment plate when using different surveying equipment. The opening angle of the three support legs can then be adjusted by continuing to press down, and the extension length of the support legs can be controlled by rotating the adjustment plate, achieving synchronous adjustment and rapid adjustment. This facilitates quick installation and replacement of different surveying equipment, ensuring surveying efficiency during road construction.

Description

Technical Field

[0001] The invention relates to the technical field of road survey equipment, in particular to engineering survey equipment for road construction. Background Art

[0002] Before road construction, engineering survey equipment is indispensable. These equipment are mainly used to collect data on topography, soil quality, hydrology and surrounding environment required for road construction. For example, geophysical equipment such as underground pipeline detectors, ground penetrating radars, and engineering detectors can conduct geological exploration and engineering inspections in a field environment, providing accurate geological information for road design. The geological information obtained by engineering survey equipment can be used to assess potential risks in the road construction process, such as the risk of natural disasters such as landslides and mud-rock flows, so that corresponding preventive measures can be taken to ensure construction safety.

[0003] When conducting engineering surveys, survey equipment is often used. During the use of engineering survey equipment, tripods are common supporting and fixing tools. When conducting geological surveys, the equipment may need to be placed at a higher position for better observation and analysis, and when conducting underground pipeline detection, the equipment may need to be placed at a lower position for detection closer to the ground. However, in actual use, the opening angle and height adjustment of the tripod are usually independent of each other. Generally, it is necessary to first adjust the opening angle of the tripod according to the stability requirements of the survey equipment, and then adjust the length of the support legs of the tripod according to the height requirements of the survey equipment. As a result, when changing different survey equipment, the adjustment is more cumbersome, and there is a problem of not being able to make quick adjustments, which is not convenient to use. Summary of the invention

[0004] The object of the present invention is to provide an engineering survey equipment for road construction to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: an engineering survey equipment for road construction, comprising a mounting seat, a slide groove is provided through the inner center of the mounting seat, and a slide column is slidably connected to the inner wall of the slide groove, and a placement plate is rotatably connected to the top of the slide column;

[0006] The bottom of the mounting seat is provided with a combined adjustment mechanism at equal distances, so that the opening angle and the telescopic length can be adjusted synchronously when the survey equipment is replaced;

[0007] Auxiliary locking mechanisms are arranged at equal distances on the bottom of the mounting seat so that the current opening angle can be quickly locked when the surveying equipment is replaced.

[0008] Preferably, the combined adjustment mechanism includes an adjustment disk, and the interior of the adjustment disk is fixedly connected to the outer wall of the sliding column, the outer wall of the adjustment disk is symmetrically fixedly connected with an adjustment handle, the inner wall of the slide groove is provided with an inner groove, the outer wall of the slide column is equidistantly fixedly connected with a block, the inner wall of the inner groove is provided with a groove corresponding to the block, the outer wall of the block fits and slides with the inner wall of the groove, the inner wall of the inner groove is fixedly connected with a spring 1, and the top of the spring 1 is fixedly connected with a top plate.

[0009] Preferably, the outer wall of the top plate slides in contact with the inner wall of the inner groove, the bottom of the sliding column is fixedly connected to the bottom column, and the outer wall of the bottom column is fixedly connected to a connecting ring, and the outer wall of the connecting ring is provided with a wire groove.

[0010] Preferably, the bottom of the mounting seat is fixedly connected with mounting blocks at equal distances, and the bottom of the mounting block is symmetrically fixedly connected with connecting blocks, a side wall where the two connecting blocks are close to each other is provided with a supporting shell, and a telescopic groove is opened at the bottom of the supporting shell, and a supporting leg is slidably connected to the inner wall of the telescopic groove.

[0011] Preferably, a connecting pull rope is fixedly connected to the top of the support leg, and the other end of the connecting pull rope passes through the interior of the support shell and is fixedly connected to the inner wall of the wire groove, a roller is fixedly installed on the bottom of the support leg, and support columns are fixedly connected to the outer walls of both sides of the support shell, and the outer walls of the support columns are rotatably connected to the interior of the connecting block.

[0012] Preferably, a torsion spring is fitted on the outer wall of the support column, one end of the torsion spring is overlapped on the outer wall of one side of the support shell, and the other end of the torsion spring is overlapped on the outer wall of one side of the connecting block, and a spring 2 is fixedly connected to the top of the support leg, and the other end of the spring 2 is fixedly connected to the inner wall of the telescopic slot.

[0013] Preferably, the outer walls on both sides of the support leg are connected with connecting rods through a damping shaft, and a hoeing block is fixedly connected to a side wall where the two connecting rods are close to each other.

[0014] Preferably, the auxiliary locking mechanism includes a sliding rod, and through holes are equidistantly penetrated through the bottom of the mounting seat corresponding to the auxiliary locking mechanism. The outer wall of the sliding rod slides in contact with the inner wall of the through hole, and a locking block is fixedly connected to one side of the bottom of the sliding rod. The ends of the two support columns that are away from each other extend through the interior of the connecting block to the outside, and the extended ends of the support columns are fixedly connected to locking gears, and a locking groove is provided at the top of the locking block corresponding to the tooth groove of the locking gear.

[0015] Preferably, an outer wall on one side of the sliding rod is fixedly connected to a mounting plate, and a spring three is fixedly connected to the top of the mounting plate, the other end of the spring three is fixedly connected to the bottom of the mounting seat, the locking block forms a telescopic structure through the sliding rod and the spring three, and the top of the locking block is squeezed and set in the tooth groove of the locking gear by the spring three.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. When using different survey equipment, the adjustment dial can be unlocked by pressing down the adjustment handle, and then the opening angle of the three support legs can be adjusted according to the needs of the survey equipment by continuing to press down, and the extension length of the support legs can be controlled by rotating the adjustment dial to achieve synchronous adjustment and achieve the effect of rapid adjustment, which is conducive to the rapid installation and replacement of different survey equipment and ensures the survey efficiency during road construction.

[0018] 2. When using different survey equipment, the slide bar can be pressed down simultaneously with the adjustment handle to unlock the restriction on the opening angle, and after the synchronous adjustment is completed, the slide bar can be driven to rise through spring three to use the locking block and the locking gear to re-lock the opening angle of the support leg, so that the current opening angle can be quickly locked to achieve the effect of mutual cooperation, which is conducive to the rapid installation and replacement of different survey equipment, thereby ensuring the survey efficiency during road construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a side sectional schematic diagram of the present invention;

[0021] Figure 3 It is a schematic diagram of the internal structure of the mounting seat of the present invention;

[0022] Figure 4 It is a schematic diagram of the supporting shell and supporting leg structure of the present invention;

[0023] Figure 5 It is a schematic diagram of the roller and the hoe block structure of the present invention;

[0024] Figure 6 It is a structural schematic diagram of the auxiliary locking mechanism of the present invention;

[0025] Figure 7 It is a schematic diagram of the structure for connecting the pull rope and the supporting shell of the present invention.

[0026] In the figure: 1, mounting seat; 2, slide groove; 3, slide column; 4, placement plate; 7, through hole; 5, combined adjustment mechanism; 501, adjustment plate; 502, adjustment handle; 503, inner groove; 504, clamping block; 505, clamping groove; 506, spring 1; 507, top plate; 508, bottom column; 509, connecting ring; 510, wire groove; 511, mounting block; 512, connecting block; 513, supporting shell ; 514, telescopic slot; 515, supporting leg; 516, connecting rope; 517, roller; 518, supporting column; 519, torsion spring; 520, spring two; 521, damping shaft; 522, connecting rod; 523, hoeing block; 6, auxiliary locking mechanism; 601, sliding rod; 602, locking block; 603, locking gear; 604, locking slot; 605, mounting plate; 606, spring three. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] For example, see Figure 1-7 The present invention provides an engineering survey equipment for road construction, including a mounting seat 1, a slide groove 2 is opened through the inner center of the mounting seat 1, and a slide column 3 is slidably connected to the inner wall of the slide groove 2, and a placement plate 4 is rotatably connected to the top of the slide column 3.

[0029] The bottom of the mounting seat 1 is provided with combined adjustment mechanisms 5 at equal distances.

[0030] Further, the combined adjustment mechanism 5 includes an adjustment disk 501, and the interior of the adjustment disk 501 is fixedly connected to the outer wall of the slide column 3, the outer wall of the adjustment disk 501 is symmetrically fixedly connected with an adjustment handle 502, the inner wall of the slide groove 2 is provided with an inner groove 503, the outer wall of the slide column 3 is equidistantly fixedly connected with a clamping block 504, the inner wall of the inner groove 503 is provided with a clamping groove 505 corresponding to the clamping block 504, the outer wall of the clamping block 504 is fitted and slid with the inner wall of the clamping groove 505, the inner wall of the inner groove 503 is fixedly connected with a spring 1 506, and the top of the spring 1 506 is fixedly connected with a top plate 507;

[0031] In this embodiment, when preparing to place the survey equipment, such as the most commonly used surveying instrument total station in road survey, the placement plate 4 is connected to the top of the slide column 3 by rotation, so that the total station can be installed on the placement plate 4. Furthermore, the installation method is a current technology, so it will not be described in detail here. Then, the device is placed at the required position, and then the inner part of the adjustment disk 501 is fixedly connected to the outer wall of the slide column 3, and the outer wall of the adjustment disk 501 is symmetrically fixedly connected with the adjustment handle 502, and the inner wall of the slide groove 2 is provided with an inner groove 503, and the outer wall of the slide column 3 is fixedly connected with The card block 504 is provided with a card slot 505 on the inner wall of the inner groove 503 corresponding to the card block 504, and the outer wall of the card block 504 slides in contact with the inner wall of the card slot 505, and at the same time, the inner wall of the inner groove 503 is fixedly connected with a spring 1 506, and the top of the spring 1 506 is fixedly connected with a top plate 507, so that in a normal state, the height of the top plate 507 can be supported and limited by the spring 1 506, so that the top plate 507 can control the lifting of the multiple card blocks 504 on the outer wall of the sliding column 3, so that the multiple card blocks 504 are stuck in the card slot 505 to limit the rotation of the sliding column 3, that is, in a locked state;

[0032] When unlocking adjustment is required, firstly, the adjusting handle 502 is held to drive the adjusting plate 501 to descend, so that the sliding column 3 is synchronously descended, so that the block 504 is disengaged from the slot 505, and the top plate 507 is squeezed, so that the spring 1 506 is in a compressed state, and then the downward movement of the adjusting plate 501 will make the lower surface of the adjusting plate 501 fit with the upper surface of the mounting seat 1, and the adjusting plate 501 will not be able to move downward at this time;

[0033] Then, the bottom of the mounting seat 1 is fixedly connected with a mounting block 511 at an equal distance, and the bottom of the mounting block 511 is symmetrically fixedly connected with a connecting block 512, and a support shell 513 is provided on one side wall close to the two connecting blocks 512, and a telescopic groove 514 is provided at the bottom of the supporting shell 513, and a supporting leg 515 is slidably connected to the inner wall of the telescopic groove 514, and a roller 517 is fixedly installed at the bottom of the supporting leg 515, and the outer walls of the two sides of the supporting shell 513 are fixedly connected with supporting columns 518, and the outer walls of the supporting columns 518 are rotatably connected to the inside of the connecting block 512. The outer wall of the support column 518 is fitted with a torsion spring 519, and one end of the torsion spring 519 overlaps the outer wall of one side of the support shell 513, and the other end of the torsion spring 519 overlaps the outer wall of one side of the connection block 512, so that in a normal state, the elastic force of the torsion spring 519 is used to control the angles of the three support legs 515, so that the three support legs 515 are in a vertical downward direction, and in order to facilitate the subsequent downward pressure to open, the three support legs 515 are in a state of slightly opening outward under the control of the torsion spring 519, which is convenient for guiding the three support legs 515 to open when the subsequent downward pressure is pressed;

[0034] Then, when the adjustment disk 501 cannot be moved downward, the adjustment disk 501 is continuously pressed downward, so that the adjustment disk 501 transmits a downward pressure to the mounting seat 1, so that the three support legs 515 begin to expand outward while being slightly opened outward, and move through the rollers 517, so that the opening angles of the three support legs 515 can be adjusted by continuously pressing downward.

[0035] Then, in the process of adjusting the opening angle, the bottom of the sliding column 3 is fixedly connected to the bottom column 508, and the outer wall of the bottom column 508 is fixedly connected to the connecting ring 509, and the outer wall of the connecting ring 509 is provided with a wire groove 510, and at the same time, the top of the supporting leg 515 is fixedly connected to the connecting rope 516, and the other end of the connecting rope 516 passes through the inside of the supporting shell 513 and is fixedly connected to the inner wall of the wire groove 510, and the top of the supporting leg 515 is fixedly connected to the spring 2 520, and the other end of the spring 2 520 is fixedly connected to the The inner wall of the telescopic slot 514, so that during the opening process, the support leg 515 is in the maximum outward extension position through the compression of the spring 2 520, at this time, the adjustment disk 501 can be rotated during the downward pressure process, driving the sliding column 3 to rotate, so that the connecting ring 509 rotates synchronously, and then the connecting rope 516 is pulled, so that the support leg 515 begins to contract, so that the extension length of the support leg 515 can be controlled by rotating the adjustment disk 501 to achieve synchronous adjustment and achieve the effect of rapid adjustment;

[0036] Then, by setting the wire groove 510, the bundled connecting pull rope 516 can be reeled in. When it is synchronously adjusted to a suitable position, the rotation of the rotating adjustment disk 501 can be stopped at this time. Furthermore, the elastic force of the torsion spring 519 should be greater than the elastic force of the spring 1 506, so that the opening angle of the device can remain unchanged during the process of pressing down the adjustment disk 501 to ensure the adjustment range of the opening angle of the device. Therefore, it is necessary to release one hand to hold the handle fixedly installed on the outer wall of the mounting seat 1 (not shown in the figure), so that one hand can control the rotation of the adjustment disk 501, and the other hand can control the current height of the mounting seat 1. Then, while keeping the current height of the mounting seat 1 unchanged, the adjustment disk 501 automatically rises through the reset rebound of the spring 1 506, so that the multiple blocks 504 are re-stuck in the slot 505 to limit the rotation of the sliding column 3, that is, the extended length of the three support legs 515 is locked. After the locking is completed, the two hands can be released, and the synchronous adjustment is completed at this time;

[0037] At this time, the outer walls of both sides of the support leg 515 are connected with connecting rods 522 through damping shafts 521, and the side wall where the two connecting rods 522 are close to each other is fixedly connected with a hoeing block 523, so that under the action of the damping shafts 521, during the synchronous adjustment process, the damping force of the damping shafts 521 (the damping shafts 521 in this case can refer to the damping shafts 521 in the structure of a notebook flip cover, which is to achieve the smooth opening and closing and positioning of the screen) can be used to control the hoeing block 523 from contacting the ground. When the synchronous adjustment is completed, the foot can be used to step on one end of the connecting rod 522, so that the hoeing block 523 moves in a circle and digs into the ground to fix the device, thereby enhancing the overall stability of the device.

[0038] Then, when the overall survey project is completed and the device is stored, first reset the hoe block 523, then press down the adjustment handle 502 to unlock it, then rotate the adjustment disk 501 to collect the remaining connecting ropes 516 into the wire groove 510, so that the support leg 515 is completely stored in the support shell 513, then while keeping the adjustment disk 501 in the unlocked state, use the elastic force of the torsion spring 519 to return the opening angle, and finally use the spring 1 506 to drive the adjustment disk 501 to automatically rise to complete the storage of the device;

[0039] As described above, when using different surveying equipment, the adjusting disk 501 can be unlocked by pressing down the adjusting handle 502, and then the opening angle of the three supporting legs 515 can be adjusted by continuing to press down according to the needs of the surveying equipment, and the extending length of the supporting legs 515 can be controlled by rotating the adjusting disk 501 to realize synchronous adjustment and achieve the effect of rapid adjustment, which is conducive to the rapid installation and replacement of different surveying equipment and ensures the survey efficiency during road construction.

[0040] Embodiment 2: Based on the above embodiment, auxiliary locking mechanisms 6 are arranged at equal distances on the bottom of the mounting seat 1 .

[0041] Furthermore, the auxiliary locking mechanism 6 includes a slide bar 601, and a through hole 7 is formed at an equal distance through the bottom of the mounting seat 1 corresponding to the auxiliary locking mechanism 6. The outer wall of the slide bar 601 slides in contact with the inner wall of the through hole 7, and a locking block 602 is fixedly connected to one side of the bottom of the slide bar 601. The ends of the two support columns 518 that are away from each other extend to the outside through the interior of the connecting block 512, and the extended ends of the support columns 518 are fixedly connected to a locking gear 603. A locking groove 604 is formed at the top of the locking block 602 corresponding to the tooth groove of the locking gear 603.

[0042] In this embodiment, a locking block 602 is fixedly connected to one side of the bottom of the slide bar 601, and one end of the two support columns 518 that are away from each other passes through the interior of the connecting block 512 and extends to the outside, and the extended end of the support column 518 is fixedly connected to a locking gear 603, and at the same time, a locking groove 604 is provided at the top of the locking block 602 corresponding to the tooth groove of the locking gear 603, and a mounting plate 605 is fixedly connected to the outer wall of one side of the slide bar 601, and a spring three 606 is fixedly connected to the top of the mounting plate 605, and at the same time, the top of the locking block 602 is squeezed by the spring three 606 to be set in the tooth groove of the locking gear 603, so that in a normal state, that is, when the lower surface of the adjusting disk 501 is not in contact with the upper surface of the mounting seat 1, the locking block 602 will be stuck in the tooth groove of the locking gear 603 under the elastic force of the spring three 606;

[0043] When the adjusting plate 501 moves downward, the lower surface of the adjusting plate 501 will fit with the upper surface of the mounting seat 1 and enter the unlocked state. At this time, the sliding rod 601 will be pressed downward synchronously, so that the locking block 602 will be out of mesh with the locking gear 603. At this time, the opening angle of the supporting leg 515 can be adjusted normally. When the height of the current mounting seat 1 is kept unchanged, the adjusting plate 501 is automatically raised and locked by the reset rebound of the spring 1 506. The locking block 602 can be synchronously driven by the spring 3 606 to re-enter the tooth groove of the locking gear 603 to quickly lock the current opening angle, thereby achieving a mutual cooperation effect.

[0044] As described above, when using different surveying equipment, the slide bar 601 can be pressed down synchronously when the adjustment handle 502 is pressed down to unlock the restriction on the opening angle, and after the synchronous adjustment is completed, the slide bar 601 can be driven to rise by spring three 606 to utilize the locking block 602 and the locking gear 603 to re-lock the opening angle of the support leg 515, so that the current opening angle can be quickly locked to achieve the effect of mutual cooperation, which is conducive to the rapid installation and replacement of different surveying equipment, thereby ensuring the survey efficiency during road construction.

[0045] Working principle: first install the survey equipment on the placement plate 4, then place the equipment at the required position, then hold the adjustment handle 502 to drive the adjustment plate 501 to descend, so that the slide column 3 descends synchronously, so that the block 504 is disengaged from the slot 505, and the top plate 507 is squeezed, so that the spring 1 506 is in a compressed state, and then the downward movement of the adjustment plate 501 will make the lower surface of the adjustment plate 501 fit with the upper surface of the mounting seat 1, and the adjustment plate 501 will not be able to move downward at this time;

[0046] When the adjustment disk 501 cannot be moved downward, the adjustment disk 501 is continuously pressed downward, so that the adjustment disk 501 transmits a downward pressure to the mounting seat 1, so that the three support legs 515 begin to expand outward while being slightly opened outward, and move through the rollers 517, so that the opening angles of the three support legs 515 can be adjusted by continuously pressing downward.

[0047] In the process of adjusting the opening angle, the adjusting disk 501 can be rotated to drive the sliding column 3 to rotate, so that the connecting ring 509 rotates synchronously, and then the connecting rope 516 is pulled to make the supporting leg 515 begin to contract, so that the extension length of the supporting leg 515 can be controlled by rotating the adjusting disk 501 to achieve synchronous adjustment and achieve the effect of rapid adjustment. Then, when the synchronous adjustment is completed, the foot can be used to step on one end of the connecting rod 522 to make the hoeing block 523 move in a circle and hoe into the ground to fix the device, thereby enhancing the overall stability of the device.

[0048] When the adjustment disk 501 moves downward, the lower surface of the adjustment disk 501 will fit into the upper surface of the mounting seat 1 and enter the unlocked state, and the sliding rod 601 will be pressed down synchronously at this time, so that the locking block 602 will disengage from the engagement with the locking gear 603. At this time, the opening angle of the support leg 515 can be adjusted normally. When the height of the current mounting seat 1 is kept unchanged, the adjustment disk 501 automatically rises and locks through the reset rebound of spring 1 506, and the locking block 602 can be synchronously driven by spring 3 606 to re-enter the tooth groove of the locking gear 603 to quickly lock the current opening angle, thereby achieving a mutual cooperation effect.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An engineering survey equipment for road construction, comprising a mounting base (1), characterized in that: A sliding groove (2) is provided through the inner center of the mounting seat (1), and a sliding column (3) is slidably connected to the inner wall of the sliding groove (2), and a placement plate (4) is rotatably connected to the top of the sliding column (3); The bottom of the mounting seat (1) is provided with combined adjustment mechanisms (5) at equal distances to adjust the opening angle and the telescopic length; Auxiliary locking mechanisms (6) are arranged at equal distances on the bottom of the mounting seat (1) to lock the current opening angle; The combined adjustment mechanism (5) comprises an adjustment disk (501), and the interior of the adjustment disk (501) is fixedly connected to the outer wall of the slide column (3); the outer wall of the adjustment disk (501) is symmetrically fixedly connected with an adjustment handle (502); the inner wall of the slide groove (2) is provided with an inner groove (503); the outer wall of the slide column (3) is equidistantly fixedly connected with a clamping block (504); the inner wall of the inner groove (503) is provided with a clamping groove (505) corresponding to the clamping block (504); the outer wall of the clamping block (504) and the inner wall of the clamping groove (505) are symmetrically fixedly connected to each other. The inner wall of the inner groove (503) is fixedly connected to a spring 1 (506), and the top of the spring 1 (506) is fixedly connected to a top plate (507). The clamping block (504) is arranged on the upper end of the top plate (507). The height of the top plate (507) is supported and limited by the spring 1 (506), so that the top plate (507) can control the lifting of the multiple clamping blocks (504) on the outer wall of the sliding column (3), so that the multiple clamping blocks (504) are stuck in the clamping groove (505) to limit the rotation of the sliding column (3), that is, it is in a locked state; The outer wall of the top plate (507) is slidably fitted with the inner wall of the inner groove (503); the bottom of the sliding column (3) is fixedly connected to a bottom column (508); the outer wall of the bottom column (508) is fixedly connected to a connecting ring (509); and the outer wall of the connecting ring (509) is provided with a wire groove (510); The bottom of the mounting seat (1) is fixedly connected with mounting blocks (511) at equal distances, and the bottom of the mounting block (511) is symmetrically fixedly connected with connecting blocks (512), and a supporting shell (513) is provided on one side wall where the two connecting blocks (512) are close to each other; The bottom of the support shell (513) is provided with a telescopic slot (514), and the inner wall of the telescopic slot (514) is slidably connected to a support leg (515); A connecting pull rope (516) is fixedly connected to the top of the support leg (515), and the other end of the connecting pull rope (516) passes through the interior of the support shell (513) and is fixedly connected to the inner wall of the wire slot (510), a roller (517) is fixedly installed at the bottom of the support leg (515), and support columns (518) are fixedly connected to the outer walls of both sides of the support shell (513), and the outer walls of the support columns (518) are rotatably connected to the interior of the connection block (512); The outer wall of the support column (518) is fitted with a torsion spring (519), one end of the torsion spring (519) is overlapped on the outer wall of one side of the support shell (513), and the other end of the torsion spring (519) is overlapped on the outer wall of one side of the connection block (512), the top of the support leg (515) is fixedly connected with a second spring (520), and the other end of the second spring (520) is fixedly connected to the inner wall of the telescopic slot (514); the auxiliary locking mechanism (6) includes a sliding rod (601), and a through hole (7) is opened at an equal distance through the bottom of the mounting seat (1) corresponding to the auxiliary locking mechanism (6), and the outer wall of the sliding rod (601) is fitted and slid with the inner wall of the through hole (7); The outer wall of one side of the slide bar (601) is fixedly connected to a mounting plate (605), and the top of the mounting plate (605) is fixedly connected to a spring three (606), and the bottom side of the slide bar (601) is fixedly connected to a locking block (602), and the other end of the spring three (606) is fixedly connected to the bottom of the mounting seat (1); One end of the two support columns (518) that is away from each other extends through the interior of the connection block (512) to the outside, and the extended end of the support column (518) is fixedly connected to a locking gear (603), and a locking groove (604) is formed at the top of the locking block (602) corresponding to the tooth groove of the locking gear (603); When the lower surface of the adjusting disk (501) is not in contact with the upper surface of the mounting seat (1), the locking block (602) is driven by the elastic force of the spring three (606) to be stuck in the tooth groove of the locking gear (603); Pressing down the adjustment disk causes the clamping block (504) to disengage from the clamping slot (505), and rotating the adjustment disk (501) causes the connecting ring (509) to rotate synchronously, thereby pulling the connecting pull rope (516) to cause the supporting leg to begin to contract, thereby adjusting the telescopic length of the supporting leg (515); when the adjustment disk (501) is pressed down, the sliding rod (601) can be pressed down synchronously, causing the locking block (602) to disengage from the tooth groove of the locking gear (603), thereby unlocking the fixed restriction on the opening angle; The adjusting disk (501) is pressed downward until the adjusting disk (501) is in contact with the upper surface of the mounting seat (1), and the adjusting disk (501) is continued to be pressed downward, so that the adjusting disk (501) transmits a downward pressure to the mounting seat (1), so that the supporting legs (515) begin to expand outwards while being slightly outwardly opened, and are moved by the rollers (517), so that the opening angle of the supporting legs (515) can be adjusted by continuously pressing downward; When the adjusting disk is released, the spring 1 (506) returns to its original position and rebounds, so that when the adjusting disk (501) automatically rises and locks, the locking block (602) can be synchronously driven by the spring 3 (606) to re-engage in the tooth groove of the locking gear (603), thereby locking the current opening angle and telescopic length.

2. The engineering survey equipment for road construction according to claim 1, characterized in that: The outer walls on both sides of the support leg (515) are connected to connecting rods (522) via damping shafts (521), and a hoeing block (523) is fixedly connected to a side wall where the two connecting rods (522) are close to each other.

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