A surveying equipment for construction engineering

Abstract

This invention discloses a construction surveying device for building engineering, relating to the technical field of construction surveying equipment. It includes: a fixed plate with legs on the fixed plate; a mounting sleeve fixedly connected to the bottom of the fixed plate; a reciprocating screw rotatably connected to the inner wall of the mounting sleeve; a drive motor at the bottom of the mounting sleeve; and a support mechanism on the circumferential surface of the reciprocating screw to increase the overall support area of ​​the device. This invention allows the fixed-point surveying instrument to be adjusted independently, avoiding the need for overall adjustment of the device and thus reducing surveying efficiency. The vertical position of the fixed-point surveying instrument can be adjusted independently according to the actual surveying height requirements of the construction scene, preventing mismatch between the fixed height of the legs and the surveying benchmark ground, and preventing light from directly entering the lens of the fixed-point surveying instrument. This eliminates measurement aiming errors caused by strong light at the source, improving the accuracy of point surveying.

Description

Technical Field

[0001] This invention belongs to the field of engineering surveying, specifically relating to a surveying device for construction engineering. Background Technology

[0002] Traditional construction surveying equipment relies heavily on the overall adjustment of the support frame for height adjustment. This requires simultaneous adjustment of the support legs, which is cumbersome and can easily disrupt the leveled state. Repeated recalibration is necessary, significantly reducing surveying efficiency. Furthermore, the overall raising and lowering of the support frame can cause the surveying instrument to shift and shake, affecting the aiming accuracy of the marked measurement points. It is also difficult to flexibly adapt to the need for rapid switching between measurement points at different heights, failing to meet the requirements of efficient and accurate surveying operations at construction sites.

[0003] Patent CN208736414U discloses a surveying instrument for geological engineering construction, including an instrument body and a support frame. The instrument body is placed on the support frame, which includes a height adjustment device, an instrument placement platform that moves vertically under the traction of the height adjustment device, a support storage platform, and multiple tripods. The top of the support storage platform is fixedly connected to the bottom of the height adjustment device. A storage groove is provided on the bottom surface of the support storage platform, and a hinge seat is provided in the storage groove. The hinge seat is located at the end of the storage groove and is hinged to the tripods via a fixed pivot. This patent proposes a surveying instrument for geological engineering construction that allows for vertical height adjustment without adjusting the support feet, offering the advantages of simple and convenient operation.

[0004] However, during the use of the above-mentioned device, it is difficult to rotate and open the light shield simultaneously when the surveying instrument is moved vertically. This can easily cause strong external light to come into contact with the lens of the surveying instrument during high-altitude operations, resulting in lens overexposure and causing errors in the surveying data, thus affecting the accuracy of subsequent surveying data. Summary of the Invention

[0005] The purpose of this invention is to provide a surveying device for construction engineering, so as to solve the problem that the surveying instrument is difficult to move vertically on its own during surveying.

[0006] To achieve the above objectives, the present invention provides a surveying device for construction engineering, comprising: a fixed plate, on which legs are provided; a mounting sleeve is fixedly connected to the bottom of the fixed plate; a reciprocating screw is rotatably connected to the inner wall of the mounting sleeve; a drive motor is provided at the bottom of the mounting sleeve; a support mechanism for increasing the overall support area of ​​the device is provided on the circumferential surface of the reciprocating screw; a recovery mechanism for retracting the legs is provided on the circumferential surface of the mounting sleeve; a moving block is movably connected to the circumferential surface of the reciprocating screw; a connecting frame is fixedly connected to the top of the moving block; an electric rotary table is fixedly connected to the top of the connecting frame; a fixed-point surveying instrument is provided on the electric rotary table; and a sliding connection is provided on the fixed plate. The rotating frame has an L-shaped rod fixedly connected to its circumference. During rotation, the fixed-point surveying instrument can be adjusted independently, avoiding the need for overall adjustment of the device and thus reducing surveying efficiency. The vertical position of the fixed-point surveying instrument can be adjusted individually according to the actual surveying height requirements of the construction site. A sliding block is slidably connected to the inner wall of the rotating frame, and a connecting rod is rotatably connected to the inner wall of the sliding block. A push rod is fixedly connected to the circumference of the sliding block. A light-shielding plate is rotatably connected to the inner wall of the rotating frame. A surveying display is installed on the rotating frame to prevent measurement deviations caused by mismatch between the fixed height of the support legs and the surveying reference ground, ensuring the accuracy of surveying data such as elevation and planar position.

[0007] In one possible implementation, the movable block is slidably connected to the inner wall of the mounting sleeve, and the mounting sleeve is used to guide and limit the movement of the movable block. At this time, the light shield can perform a certain light shielding operation on the fixed-point mapping instrument. During the process of the fixed-point mapping instrument being raised to the high-altitude working position, the strong light at high altitude or the strong lighting of the construction site can easily shine directly on the lens of the fixed-point mapping instrument, forming glare, light spots, or even causing lens reflection and overexposure, resulting in blurred imaging of the marked measurement points and inaccurate aiming. The light shield can accurately block vertical or oblique strong light. The connecting rod is rotatably connected to the inner wall of the L-rod, and there is an angle difference between the L-rod and the connecting rod, which prevents light from directly entering the lens of the fixed-point mapping instrument, ensuring that the marked points are clearly imaged and have distinct outlines in the lens, eliminating the measurement and aiming errors caused by strong light from the root, and improving the accuracy of point mapping.

[0008] In one possible implementation, the light-shielding plate is located on the movement trajectory of the push rod, and the push rod is used to push the light-shielding plate to rotate at an angle. The electric rotary table is in contact with the fixed plate and the electric rotary table is in contact with the reciprocating lead screw. During the upward movement of the L-rod, the L-rod will drive the connecting rod to rise. However, there is an initial angle difference between the L-rod and the connecting rod. At this time, during the upward movement of the connecting rod driven by the L-rod, the connecting rod will rotate at a certain angle through the angle difference. During the upward movement and angle adjustment, the connecting rod will push the sliding block to slide on the inner wall of the rotating frame.

[0009] In one possible implementation, the support mechanism includes a second light-shielding plate, which is fixedly connected to the left side of the L-rod. A fixing member is fixedly connected to the inner wall of the rotating frame, and a sleeve plate is fixedly connected to the inner wall of the fixing member. A protective plate is slidably connected to the inner wall of the sleeve plate. When the protective plate moves a certain distance, it can be positioned directly above the fixed-point surveying instrument, providing protection for the instrument. The protective plate can prevent debris or other items that may affect the normal use of the fixed-point surveying instrument from falling and coming into contact with it, thereby causing damage to the instrument and improving the surveying time of the device.

[0010] In one possible implementation, the support mechanism further includes a connecting block movably connected to the circumferential surface of the reciprocating lead screw. A limit slider is fixedly connected to the circumferential surface of the connecting block, and an L-shaped rod is fixedly connected to the circumferential surface of the connecting block. A support plate is fixedly connected to the bottom of the L-shaped rod, and the support plate contacts the ground. This increases the contact area between the device and the ground during the ascent of the fixed-point surveying instrument, thereby improving the overall stability of the device, the surveying stability of the device, and the construction surveying accuracy of the device.

[0011] In one possible implementation, the protective plate is fixedly connected to the inner wall of the sliding block, the limiting slider is slidably connected to the inner wall of the mounting sleeve, and the limiting slider is used to provide stable movement limitation for the connecting block. The L-rod two contacts the mounting sleeve, and the reciprocating screw will synchronously drive the connecting block to rotate. The rotation of the connecting block will drive the limiting slider to rotate, but at this time the limiting slider is limited by the movement of the mounting sleeve. At this time, the limiting slider can only slide on the inner wall of the mounting sleeve. The limiting slider will cause the connecting block to move downward only through another reciprocating groove opened on the surface of the reciprocating screw during the rotation of the reciprocating screw.

[0012] In one possible implementation, the recovery mechanism includes an electronic reference disk fixedly connected to the top of the fixed-point mapping instrument. A limit sleeve is fixedly connected to the bottom of the protective plate, and a pull rope is fixedly connected to the bottom of the protective plate. A laser positioner is fixedly connected to the circumference of the pull rope. The electronic reference disk can make timely adjustments based on the control terminal transmitted to the outside world according to the light signal, thereby improving the mapping accuracy of the device, reducing mapping errors, and lowering mapping costs.

[0013] In one possible implementation, the recycling mechanism further includes an L-shaped rod three, which is fixedly connected to the circumferential surface of the supporting circular plate. A fixing slot block is fixedly connected to the left side of the L-shaped rod three. A limiting elastic arc plate is rotatably connected to the inner wall of the fixing slot block. A reinforcing ring is fixedly connected to the circumferential surface of the mounting sleeve, and a locking rod is fixedly connected to the circumferential surface of the reinforcing ring. The locking rod can limit the limiting elastic arc plate, preventing it from moving and ensuring that the support leg cannot move. This allows for the recycling and tightening of the support leg, improving the effectiveness of the device.

[0014] In one possible implementation, the locking rod contacts the fixed slot block, the locking rod is located on the movement trajectory of the limiting elastic arc plate, and the locking rod is used to limit and lock the limiting elastic arc plate. The support leg will rotate by gravity until the support leg is in front of L-rod three. At this time, the limiting elastic arc plate can be rotated, and the limiting elastic arc plate can wrap and limit part of the support leg. At the same time, the supporting circular plate will reset and drive L-rod three to move upward. The movement of L-rod three will synchronously drive the fixed slot block.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. The surveying equipment used in this construction project, through the coordinated movement of the fixed plate, support legs, mounting sleeve, reciprocating screw, moving block, connecting frame, electric rotary table, fixed-point surveying instrument, rotating frame, L-rod one, sliding block, connecting rod, push rod, and light-shielding plate one, allows the fixed-point surveying instrument to be adjusted independently during rotation and movement. This avoids the need for overall measurement adjustments, which would reduce surveying efficiency. The vertical position of the fixed-point surveying instrument can be adjusted individually according to the actual surveying height requirements of the construction site, avoiding measurement deviations caused by mismatch between the fixed height of the support legs and the surveying benchmark ground. This ensures the accuracy of surveying data such as elevation and planar position, and prevents light from directly entering the lens of the fixed-point surveying instrument, ensuring that the marked points are clearly imaged and have distinct outlines within the lens. This eliminates measurement aiming errors caused by strong light at the source, improving the accuracy of point surveying.

[0016] 2. The construction surveying equipment for this building project, through the coordinated movement of the light-shielding plate II, fixing components, sleeve plate, protective plate, connecting circular block, limiting slider, L-rod II, and supporting circular plate, ensures that the protective plate is positioned directly above the fixed-point surveying instrument, providing protection for the instrument. The protective plate prevents debris or other items that may affect the normal operation of the fixed-point surveying instrument from falling and contacting it, thus preventing damage. This extends the surveying time of the device. The supporting circular plate contacts the ground, simultaneously increasing the contact area between the device and the ground during the instrument's ascent, thereby improving the overall stability of the device and consequently enhancing its surveying stability and construction surveying accuracy.

[0017] 3. The construction surveying equipment for this building project, through the coordinated movement of the electronic reference plate, limiting sleeve, pull rope, laser positioner, L-shaped rod, fixed groove block, limiting elastic arc plate, reinforcing ring, and locking rod, enables the electronic reference plate to make timely adjustments based on the control terminal transmitted by the light signal. This improves the surveying accuracy of the device, reduces surveying errors, and lowers surveying costs. The locking rod can limit the limiting elastic arc plate, preventing it from moving and ensuring that the support legs cannot move. This allows for the retraction and tightening of the support legs, improving the overall effectiveness of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of this application; Figure 2 This is a half-sectional view of the mounting sleeve structure provided in an embodiment of this application; Figure 3 This is a schematic diagram of the fixed-point mapping instrument provided in the embodiments of this application; Figure 4 Provided for the embodiments of this application Figure 3 Enlarged view of the structure at point A in the middle; Figure 5 A schematic diagram of the push rod structure provided in the embodiments of this application; Figure 6 A schematic diagram of the support mechanism provided in the embodiments of this application; Figure 7 This is a schematic diagram of the supporting circular plate mechanism provided in an embodiment of this application; Figure 8 A schematic diagram of the recycling mechanism provided in the embodiments of this application; Figure 9 Provided for the embodiments of this application Figure 8 Enlarged view of the structure at point B in the middle; Figure 10 This is a schematic diagram of the limiting elastic arc plate provided in the embodiments of this application.

[0019] Explanation of key figure labels: 1. Fixed plate; 2. Support leg; 3. Mounting sleeve; 4. Reciprocating screw; 5. Support mechanism; 6. Retraction mechanism; 7. Moving block; 8. Connecting frame; 9. Electric rotary table; 10. Fixed-point surveying instrument; 11. Rotating frame; 12. L-rod one; 13. Sliding block; 14. Connecting rod; 15. Push rod; 16. Sunshade plate one; 501. Sunshade plate two; 502. Fixing component; 503. Sleeve plate; 504. Protective plate; 505. Connecting round block; 506. Limiting slider; 507. L-rod two; 508. Supporting round plate; 601. Electronic reference plate; 602. Limiting sleeve; 603. Pull rope; 604. Laser positioner; 605. L-rod three; 606. Fixed groove block; 607. Limiting elastic arc plate; 608. Reinforcing ring; 609. Locking rod. Detailed Implementation

[0020] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0021] like Figures 1-10 As shown, one embodiment of the present invention is: a surveying device for construction engineering, comprising: a fixed plate 1, a support leg 2 provided on the fixed plate 1, an mounting sleeve 3 fixedly connected to the bottom of the fixed plate 1, a reciprocating screw 4 rotatably connected to the inner wall of the mounting sleeve 3, a drive motor provided at the bottom of the mounting sleeve 3, a support mechanism 5 for increasing the overall support area of ​​the device provided on the circumferential surface of the reciprocating screw 4, a recovery mechanism 6 for retracting the support leg 2 provided on the circumferential surface of the mounting sleeve 3, and a movable block 7 movably connected to the circumferential surface of the reciprocating screw 4. A connecting frame 8 is fixedly connected to the top, an electric rotary table 9 is fixedly connected to the top of the connecting frame 8, a fixed-point surveying instrument 10 is installed on the electric rotary table 9, a rotating frame 11 is slidably connected to the fixed plate 1, an L-rod 12 is fixedly connected to the circumferential surface of the electric rotary table 9, a sliding block 13 is slidably connected to the inner wall of the rotating frame 11, a connecting rod 14 is rotatably connected to the inner wall of the sliding block 13, a push rod 15 is fixedly connected to the circumferential surface of the sliding block 13, a light shield 16 is rotatably connected to the inner wall of the rotating frame 11, and a surveying display is installed on the rotating frame 11. When the device is ready to survey the area that the construction unit needs to survey, the surveyor first places the entire device in the appropriate area to be surveyed, and simultaneously opens the support legs 2 to place the entire device stably on the ground. After the preparation is completed, the drive motor will start, and the output end of the drive motor will drive the reciprocating screw 4 to rotate. During the rotation of the reciprocating screw 4, the rotation of the reciprocating screw 4 will synchronously drive the moving block 7 to rotate. However, at this time, the moving block 7 is sliding on the inner wall of the mounting sleeve 3. At this time, the mounting sleeve 3 will cause the moving block 7 to move up and down according to the reciprocating groove opened on the surface of the reciprocating screw 4 during the rotation of the reciprocating screw 4. During the upward movement of the moving block 7, the movement of the moving block 7 will synchronously drive the connecting frame 8 to move, and the movement of the connecting frame 8 will drive the electric rotary table 9 to move upward. The rising of the electric rotary table 9 will drive the fixed-point surveying instrument 10 to rise synchronously. At the same time, when the fixed-point surveying instrument 10 needs to rotate at an angle, the electric rotary table 9 will start and drive the fixed-point surveying instrument 10 to rotate at an angle. The rotation angle needs to be adjusted in advance based on the area data of the surveying area provided by the construction unit. After the above operations are in normal operation, the fixed-point surveying instrument 10 can move to different heights and rotate at the same time. During the rotation and movement, the fixed-point surveying instrument 10 can be adjusted individually to avoid the need for overall surveying adjustments of the device, which would reduce surveying efficiency. The vertical position of the fixed-point surveying instrument 10 can be adjusted individually according to the actual surveying height requirements of the construction scene to avoid measurement deviations caused by the mismatch between the fixed height of the support 2 and the surveying benchmark ground, and to ensure the accuracy of surveying data such as elevation and plane position. The movable block 7 is slidably connected to the inner wall of the mounting sleeve 3, and the mounting sleeve 3 is used to guide and limit the movement of the movable block 7. The connecting rod 14 is rotatably connected to the inner wall of the L rod 12, and there is an angle difference between the L rod 12 and the connecting rod 14. The light shield 16 is located on the movement trajectory of the push rod 15, and the push rod 15 is used to push the light shield 16 to rotate at an angle. The electric rotary table 9 is in contact with the fixed plate 1, and the electric rotary table 9 is in contact with the reciprocating screw 4. As the electric rotary table 9 rotates, it drives the fixed-point surveying instrument 10 to rotate. The rotation of the electric rotary table 9 also drives the L-rod 12 to rotate. The rotation of the L-rod 12 drives the connecting rod 14 to rotate around the electric rotary table 9 as the center of rotation. The rotation of the connecting rod 14 drives the sliding block 13 to rotate, which in turn drives the rotating frame 11 to rotate. Simultaneously, the sliding block 13 also drives the push rod 15 to rotate. The rotation of the rotating frame 11 drives the light-shielding plate 16 to rotate. When the electric rotary table 9 rises, its movement drives the L-rod 12 to rise. During this rise, the L-rod 12 drives the connecting rod 14 to rise. However, there is an initial angle difference between the L-rod 12 and the connecting rod 14. As the connecting rod 14 rises under the influence of the L-rod 12, it rotates at a certain angle due to this angle difference. During this upward movement and angle adjustment, the connecting rod 14 pushes... The sliding block 13 slides on the inner wall of the rotating frame 11. The sliding of the sliding block 13 synchronously drives the push rod 15 to move. After moving a certain distance, the push rod 15 contacts the light-shielding plate 16, causing it to rotate. After rotating 90 degrees, the light-shielding plate 16 is parallel to the fixed-point surveying instrument 10, allowing it to provide some light-shielding to the instrument. During the process of the surveying instrument 10 being raised to a high-altitude working position, strong light from high altitudes or strong lighting from construction sites can easily shine directly into the lens of the fixed-point surveying instrument 10, causing glare, light spots, or even lens reflection and overexposure, resulting in blurred images of the marked measurement points and inaccurate aiming. The light shield 16 can accurately block vertical or oblique strong light, preventing light from directly entering the lens of the fixed-point surveying instrument 10, ensuring that the marked points are clearly imaged and have distinct outlines within the lens, eliminating measurement and aiming errors caused by strong light from the root, and improving the accuracy of point mapping.

[0022] Overall working principle: During the rotation and movement of the fixed-point surveying instrument 10, it can be adjusted independently, avoiding the need for overall measurement and adjustment of the device, which would reduce the measurement efficiency. The vertical position of the fixed-point surveying instrument 10 can be adjusted independently according to the actual measurement height requirements of the construction scene, avoiding measurement deviations caused by the mismatch between the fixed height of the support 2 and the measurement benchmark ground, ensuring the accuracy of measurement data such as elevation and plane position, and preventing light from directly entering the lens of the fixed-point surveying instrument 10, ensuring that the marked points are clearly imaged and have distinct outlines in the lens, eliminating measurement aiming errors caused by strong light from the root, and improving the accuracy of point measurement.

[0023] like Figures 1-10As shown, based on the above embodiments, in another embodiment of the present invention, the support mechanism 5 includes a second light-shielding plate 501, the second light-shielding plate 501 is fixedly connected to the left side of the L rod 12, the inner wall of the rotating frame 11 is fixedly connected to a fixing member 502, the inner wall of the fixing member 502 is fixedly connected to a sleeve plate 503, and the inner wall of the sleeve plate 503 is slidably connected to a protective plate 504. As L-rod 12 rises, it moves the second light-shielding plate 501. After rising a certain distance, the second light-shielding plate 501 is positioned in front of the surveying display. The second light-shielding plate 501 prevents the surveyor from being exposed to sunlight while observing the data on the surveying display. Simultaneously, as the sliding block 13 moves, it moves the protective plate 504 synchronously. During this movement, the protective plate 504 gradually detaches from the inner wall of the sleeve plate 503. After moving a certain distance, the protective plate 504 is positioned directly above the fixed-point surveying instrument 10, providing protection for the instrument. The protective plate 504 prevents debris or other items that may affect the normal use of the fixed-point surveying instrument 10 from falling and coming into contact with it, thereby causing damage to the instrument. This improves the surveying time of the device. The support mechanism 5 also includes a connecting block 505, which is movably connected to the circumferential surface of the reciprocating screw 4. A limiting slider 506 is fixedly connected to the circumferential surface of the connecting block 505. An L-rod 507 is fixedly connected to the circumferential surface of the connecting block 505. A support plate 508 is fixedly connected to the bottom of the L-rod 507. A protective plate 504 is fixedly connected to the inner wall of the sliding block 13. The limiting slider 506 is slidably connected to the inner wall of the mounting sleeve 3, and the limiting slider 506 is used to provide stable movement limitation for the connecting block 505. The L-rod 507 is in contact with the mounting sleeve 3. When the device is in use, the reciprocating screw 4 rotates, synchronously driving the connecting block 505 to rotate. The rotation of the connecting block 505 drives the limiting slider 506 to rotate. However, the limiting slider 506 is limited by the movement of the mounting sleeve 3, and can only slide on the inner wall of the mounting sleeve 3. This limiting slider 506 causes the connecting block 505 to move downwards only through another reciprocating groove on the surface of the reciprocating screw 4 during the rotation of the reciprocating screw 4. The movement of the connecting block 505 will synchronously drive the limit slider 506 to move. At the same time, the movement of the connecting block 505 will also drive the L rod 507 to move. The movement of the L rod 507 will drive the support plate 508 to move. After moving a certain distance, the support plate 508 will contact the ground. During the upward movement of the fixed-point surveying instrument 10, the contact area between the device and the ground will be increased simultaneously, which can improve the overall stability of the device, thereby improving the surveying stability of the device and the construction surveying accuracy of the device. The recycling mechanism 6 includes an electronic reference plate 601, which is fixedly connected to the top of the fixed-point mapping instrument 10. A limit sleeve 602 is fixedly connected to the bottom of the protective plate 504. A pull rope 603 is fixedly connected to the bottom of the protective plate 504. A laser locator 604 is fixedly connected to the circumferential surface of the pull rope 603. When the device is in use, as the protective plate 504 moves, it synchronously moves the limiting sleeve 602. Simultaneously, the protective plate 504 also moves the pull rope 603, which in turn moves the laser positioner 604. Meanwhile, as the positioning surveying instrument 10 rises, its movement moves the electronic reference disk 601. After the electronic reference disk 601 and the laser positioner 604 have moved a certain distance synchronously, the laser positioner 604... After the device comes to a standstill, the laser locator 604 can be activated and emit a reference laser line located at the center of the electronic reference disk 601. If the device is tilted on the ground, the laser locator 604 will drive the pull rope 603 to shift synchronously by gravity, causing the reference laser line emitted by the laser locator 604 to shift on the electronic reference disk 601. The electronic reference disk 601 can then make timely adjustments based on the control terminal transmitted by the light signal, thereby improving the mapping accuracy of the device, reducing mapping errors, and lowering mapping costs. The recycling mechanism 6 also includes an L-bar 3 605, which is fixedly connected to the circumferential surface of the supporting circular plate 508. A fixing slot 606 is fixedly connected to the left side of the L-bar 3 605. A limiting elastic arc plate 607 is rotatably connected to the inner wall of the fixing slot 606. A reinforcing ring 608 is fixedly connected to the circumferential surface of the mounting sleeve 3. A locking rod 609 is fixedly connected to the circumferential surface of the reinforcing ring 608. The locking rod 609 is in contact with the fixing slot 606. The locking rod 609 is located on the movement trajectory of the limiting elastic arc plate 607 and is used to limit and lock the limiting elastic arc plate 607. After the device is no longer in use, the surveyor needs to retract and tighten the support leg 2. The surveyor needs to lift the entire device, and the support leg 2 will rotate under gravity until it is in front of L-rod 605. At this point, the limiting elastic arc plate 607 can rotate, effectively enclosing and limiting a portion of the support leg 2. Simultaneously, the supporting circular plate 508 will reset and cause L-rod 605 to move upwards. The movement of L-rod 605 will synchronously move the fixing slot block 606. The movement of the fixed groove block 606 will drive the limiting elastic arc plate 607. After the rotating limiting elastic arc plate 607 rises a certain distance, it will contact the locking rod 609. The locking rod 609 can be located on the inner wall of the fixed groove block 606 and the limiting elastic arc plate 607. The locking rod 609 can limit the limiting elastic arc plate 607 at this time, and the limiting elastic arc plate 607 cannot move. This ensures that the support leg 2 cannot move, and the support leg 2 can be retracted and tightened, improving the use effect of the device. Overall working principle: After the protective plate 504 moves a certain distance, it is positioned directly above the fixed-point surveying instrument 10, providing protection. The protective plate 504 prevents debris or other objects that could affect the normal operation of the fixed-point surveying instrument 10 from falling and contacting it, thus preventing damage. This increases the surveying time of the device. The supporting circular plate 508 contacts the ground, simultaneously increasing the contact area between the device and the ground as the fixed-point surveying instrument 10 rises. This improves the overall stability of the device, thereby enhancing its surveying stability and construction surveying accuracy. The electronic reference plate 601 can make timely adjustments based on the control terminal transmitted by the optical signal, improving the surveying accuracy, reducing surveying errors, and lowering surveying costs. At this time, the locking rod 609 can limit the limiting elastic arc plate 607, preventing it from moving and ensuring that the support leg 2 cannot move. This allows for the retraction and tightening of the support leg 2, improving the device's performance.

[0024] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A surveying device for construction work, characterized by include: A fixed plate (1) is provided with a support leg (2). A mounting sleeve (3) is fixedly connected to the bottom of the fixed plate (1). A reciprocating screw (4) is rotatably connected to the inner wall of the mounting sleeve (3). A drive motor is provided at the bottom of the mounting sleeve (3). A support mechanism (5) for increasing the overall support area of ​​the equipment is provided on the circumferential surface of the reciprocating screw (4). A recycling mechanism (6) for retracting the support leg (2) is provided on the circumferential surface of the mounting sleeve (3). A moving block (7) is movably connected to the circumferential surface of the reciprocating screw (4). A connecting frame (8) is fixedly connected to the top of the moving block (7). (8) is fixedly connected to an electric rotary table (9), and a fixed-point surveying instrument (10) is provided on the electric rotary table (9). A rotating frame (11) is slidably connected on the fixed plate (1). An L-rod (12) is fixedly connected to the circumferential surface of the electric rotary table (9). A sliding block (13) is slidably connected to the inner wall of the rotating frame (11). A connecting rod (14) is rotatably connected to the inner wall of the sliding block (13). A push rod (15) is fixedly connected to the circumferential surface of the sliding block (13). A light shield (16) is rotatably connected to the inner wall of the rotating frame (11). A surveying display is provided on the rotating frame (11).

2. The surveying equipment for construction work according to claim 1, wherein The movable block (7) is slidably connected to the inner wall of the mounting sleeve (3), and the mounting sleeve (3) is used to guide the movable block (7) to move and limit. The connecting rod (14) is rotatably connected to the inner wall of L rod (12), and there is an angle difference between L rod (12) and connecting rod (14).

3. The surveying equipment for construction engineering according to claim 2, characterized in that, The light-shielding plate (16) is located on the movement trajectory of the push rod (15), and the push rod (15) is used to push the light-shielding plate (16) to rotate at an angle. The electric rotary table (9) is in contact with the fixed disk (1) and the electric rotary table (9) is in contact with the reciprocating lead screw (4).

4. The surveying equipment for construction engineering according to claim 3, characterized in that, The support mechanism (5) includes a second light-shielding plate (501), which is fixedly connected to the left side of the first L rod (12). The inner wall of the rotating frame (11) is fixedly connected to a fixing member (502), and the inner wall of the fixing member (502) is fixedly connected to a sleeve plate (503). The inner wall of the sleeve plate (503) is slidably connected to a protective plate (504).

5. The surveying equipment for construction engineering according to claim 4, characterized in that, The support mechanism (5) also includes a connecting block (505), which is movably connected to the circumferential surface of the reciprocating screw (4). A limit slider (506) is fixedly connected to the circumferential surface of the connecting block (505). An L-rod (507) is fixedly connected to the circumferential surface of the connecting block (505), and a support plate (508) is fixedly connected to the bottom of the L-rod (507).

6. The surveying equipment for construction engineering according to claim 5, characterized in that, The protective plate (504) is fixedly connected to the inner wall of the sliding block (13), the limiting slider (506) is slidably connected to the inner wall of the mounting sleeve (3), and the limiting slider (506) is used to provide stable movement limit for the connecting round block (505), and the L rod (507) is in contact with the mounting sleeve (3).

7. The surveying equipment for construction engineering according to claim 6, characterized in that, The recycling mechanism (6) includes an electronic reference disk (601), which is fixedly connected to the top of the fixed-point mapping instrument (10). A limit sleeve (602) is fixedly connected to the bottom of the protective plate (504), and a pull rope (603) is fixedly connected to the bottom of the protective plate (504). A laser locator (604) is fixedly connected to the circumferential surface of the pull rope (603).

8. The surveying equipment for construction engineering according to claim 7, characterized in that, The recycling mechanism (6) also includes an L-bar three (605), which is fixedly connected to the circumferential surface of the supporting circular plate (508). A fixing groove block (606) is fixedly connected to the left side of the L-bar three (605). A limiting elastic arc plate (607) is rotatably connected to the inner wall of the fixing groove block (606). A reinforcing ring (608) is fixedly connected to the circumferential surface of the mounting sleeve (3), and a locking rod (609) is fixedly connected to the circumferential surface of the reinforcing ring (608).

9. A surveying equipment for construction engineering according to claim 8, characterized in that, The locking rod (609) contacts the fixing slot block (606), the locking rod (609) is located on the movement trajectory of the limiting elastic arc plate (607), and the locking rod (609) is used to limit and lock the limiting elastic arc plate (607).

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