On-site surveying and mapping equipment for engineering cost

Abstract

The utility model provides on-site surveying and mapping equipment for engineering cost. The on-site surveying and mapping equipment for the construction cost comprises a support frame; the adjusting frame is mounted at the top end of the supporting frame; the mounting seat frame is used for mounting a theodolite, the mounting seat frame is rotationally connected with the top of the adjusting frame, and an anti-collision mechanism and a positioning mechanism are correspondingly arranged on the mounting seat frame. The adjusting frame is installed on the supporting frame, the top of the adjusting frame is rotationally connected with the mounting seat frame, the mounting seat frame is used for fixing the theodolite, and the anti-collision mechanism and the positioning mechanism are correspondingly arranged on the mounting seat frame, so that the theodolite is protected, the theodolite is prevented from being damaged due to collision, and the safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of surveying equipment technology, and in particular to a field surveying equipment for engineering cost estimation. Background Technology

[0002] Construction cost refers to the price of a project, which is the total cost, whether expected or actual, required to complete the project. To accurately estimate the cost, precise surveying of the project's size is necessary in the early stages to provide accurate data for the cost estimate. This requires preliminary surveying, which is accomplished using surveying equipment. However, existing surveying equipment lacks protective components for theodolites. During later use, if workers accidentally touch the equipment, it may tilt and collapse, causing the theodolite to collide with the ground and damage the entire device. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an engineering cost surveying device to improve the safety of theodolite use.

[0004] To solve the above-mentioned technical problems, the technical solution of this invention is as follows:

[0005] An on-site surveying device for engineering cost estimation includes:

[0006] Support frame;

[0007] An adjustment bracket installed at the top of the support frame;

[0008] A mounting frame for mounting a theodolite, the mounting frame being rotatably connected to the top of the adjustment frame, and the mounting frame being provided with a corresponding anti-collision mechanism and a positioning mechanism.

[0009] Optionally, the support frame includes multiple telescopic rods, a connecting sleeve, and a lifting cylinder. The multiple telescopic rods are all hinged to the connecting sleeve. The lifting cylinder is fixed inside the connecting sleeve. A lifting rod is slidably connected inside the lifting cylinder. The top of the lifting rod is connected to the adjusting frame.

[0010] Optionally, the connecting sleeve is provided with a first fastening knob, which passes through the connecting sleeve and abuts against the lifting rod.

[0011] Optionally, the support frame further includes multiple folding rods and sliding sleeves hinged to the multiple folding rods, the multiple telescopic rods being hinged to the multiple folding rods one by one, and the sliding sleeves being slidably connected to the lifting cylinder.

[0012] Optionally, the adjusting frame includes an adjusting head and an adjusting seat, the adjusting head being rotatably connected to the lifting rod via a first rotating shaft, and the adjusting seat being rotatably connected to the mounting frame via a main shaft;

[0013] The adjusting head is equipped with an operating handle;

[0014] A first locking sleeve is threaded onto the outer wall of one end of the first rotating shaft;

[0015] The bottom end of the adjusting seat is rotatably connected to the adjusting head via a second rotating shaft, and a second locking sleeve is threaded onto the outer wall of one end of the second rotating shaft;

[0016] The adjusting seat is provided with a second fastening knob, and the second fastening knob abuts against the outer wall of the spindle.

[0017] Optionally, the anti-collision mechanism includes:

[0018] A protective plate is installed on the mounting frame, and a first buffer spring is provided between the protective plate and the mounting frame;

[0019] A protective strip is installed on the mounting base frame, and each end of the protective strip is provided with a movable column. The movable column is slidably connected to the mounting base frame through a connecting cylinder provided on the mounting base frame.

[0020] Optionally, the first buffer spring is connected to the mounting frame via a connector.

[0021] Optionally, a second buffer spring is fixedly connected to one end of the movable column located inside the connecting cylinder.

[0022] Optionally, the positioning mechanism includes:

[0023] A positioning plate that is slidably connected to the mounting frame and in contact with the theodolite;

[0024] A bidirectional threaded rod is rotatably connected to the mounting base frame. Both ends of the bidirectional threaded rod are threadedly connected to threaded sleeves, and each threaded sleeve is rotatably connected to a movable sleeve. A linkage frame is provided between the threaded sleeve and the positioning plate. Both ends of the linkage frame are rotatably connected to the movable sleeve and the positioning plate, respectively. The top end of the bidirectional threaded rod passes through the mounting base frame and is connected to an operating knob. A fixed sleeve is provided between the bidirectional threaded rod and the operating knob. A third fastening knob is threadedly connected to the fixed sleeve, and the third fastening knob abuts against the outer wall of the bidirectional threaded rod.

[0025] Optionally, both ends of the positioning plate are slidably connected to the mounting frame via grooves provided on the mounting frame.

[0026] The above-described solution of this utility model has at least the following beneficial effects:

[0027] The above-mentioned solution of this utility model, by installing an adjustment frame on the support frame and rotatably connecting a mounting frame to the top of the adjustment frame, the mounting frame is used to fix the theodolite. Corresponding anti-collision mechanism and positioning mechanism are provided on the mounting frame, which protects the theodolite and avoids damage to the theodolite caused by collision, thus improving safety. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the on-site surveying equipment for engineering cost estimation according to an embodiment of this utility model;

[0029] Figure 2 This is a schematic diagram of the internal structure of the mounting frame in an embodiment of this utility model;

[0030] Figure 3 yes Figure 2 A magnified view of a portion of the image;

[0031] Figure 4 yes Figure 2 A magnified view of a portion of the image, shown in Figure B.

[0032] Explanation of reference numerals in the attached drawings: 1-Support frame, 101-Telescopic rod, 102-Connecting sleeve, 103-Lifting cylinder, 104-Lifting rod, 105-First fastening knob, 106-Folding rod, 107-Sliding sleeve, 2-Adjusting frame, 201-Adjusting head, 202-Adjusting seat, 203-First rotating shaft, 204-Main shaft, 205-Operating handle, 206-First locking sleeve, 207-Second rotating shaft, 208-Second locking sleeve, 209-Second fastening knob, 3- Mounting bracket, 301-slide groove, 302-movable groove, 4-theodolite, 501-protective plate, 502-first buffer spring, 503-protective strip, 504-movable column, 505-connecting cylinder, 506-connecting head, 507-second buffer spring, 601-positioning plate, 602-bidirectional threaded rod, 603-threaded sleeve, 604-moving sleeve, 605-linkage frame, 606-operation knob, 607-fixed sleeve, 608-third fastening knob. Detailed Implementation

[0033] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0034] like Figures 1 to 4As shown, an embodiment of this utility model proposes a field surveying device for engineering cost estimation, comprising:

[0035] Support frame 1;

[0036] Adjustment bracket 2 installed at the top of the support frame 1;

[0037] The mounting frame 3 is used to install the theodolite 4. The mounting frame 3 is rotatably connected to the top of the adjustment frame 2. The mounting frame 3 is provided with an anti-collision mechanism and a positioning mechanism.

[0038] The field surveying equipment for engineering cost estimation in this embodiment of the utility model has an adjustment frame installed on a support frame, and a mounting frame is rotatably connected to the top of the adjustment frame. The mounting frame is used to fix the theodolite. Corresponding anti-collision mechanism and positioning mechanism are provided on the mounting frame to protect the theodolite and avoid damage to the theodolite caused by collision, which helps to improve safety.

[0039] like Figure 2 As shown, in an optional embodiment of the present invention, the support frame 1 includes a plurality of telescopic rods 101, a connecting sleeve 102, and a lifting cylinder 103. The plurality of telescopic rods 101 are all hinged to the connecting sleeve 102. The lifting cylinder 103 is fixed inside the connecting sleeve 102. A lifting rod 104 is slidably connected inside the lifting cylinder 103. The top of the lifting rod 104 is connected to the adjusting frame 2.

[0040] Specifically, the support frame supports the theodolite, and the height of the theodolite can be adjusted through the support frame.

[0041] like Figure 2 As shown, in an optional embodiment of the present invention, the connecting sleeve 102 is provided with a first fastening knob 105, which passes through the connecting sleeve 102 and abuts against the lifting rod 104.

[0042] Specifically, by controlling the first fastening knob, the lifting rod can slide up and down inside the lifting cylinder, thereby adjusting the height of the theodolite.

[0043] like Figure 2 As shown, in an optional embodiment of the present invention, the support frame 1 further includes a plurality of folding rods 106 and a sliding sleeve 107 hinged to the plurality of folding rods 106. The plurality of telescopic rods 101 are hinged to the plurality of folding rods 106 in a one-to-one correspondence. The sliding sleeve 107 is slidably connected to the lifting cylinder 103.

[0044] Specifically, the telescopic rod is opened or folded by a folding rod, and during the folding process, the sliding sleeve slides on the outer wall of the lifting cylinder.

[0045] like Figure 2 As shown, in an optional embodiment of the present invention, the adjusting frame 2 includes an adjusting head 201 and an adjusting seat 202. The adjusting head 201 is rotatably connected to the lifting rod 104 via a first rotating shaft 203, and the adjusting seat 202 is rotatably connected to the mounting frame 3 via a main shaft 204.

[0046] The adjusting head 201 is provided with an operating handle 205;

[0047] A first locking sleeve 206 is threaded onto the outer wall of one end of the first rotating shaft 203;

[0048] The bottom end of the adjusting seat 202 is rotatably connected to the adjusting head 201 via a second rotating shaft 207, and a second locking sleeve 208 is threaded onto the outer wall of one end of the second rotating shaft 207.

[0049] The adjusting seat 202 is provided with a second fastening knob 209, and the second fastening knob 209 abuts against the outer wall of the main shaft 204.

[0050] Specifically, the adjustment frame in this embodiment allows for convenient adjustment of the theodolite's front-to-back and left-to-right angles, enabling flexible adjustment of the theodolite's angle and direction, thereby improving its applicability.

[0051] like Figure 2 and Figure 3 As shown, in an optional embodiment of the present invention, the anti-collision mechanism includes:

[0052] A protective plate 501 is installed on the mounting frame 3, and a first buffer spring 502 is provided between the protective plate 501 and the mounting frame 3.

[0053] A protective strip 503 is installed on the mounting base frame 3. Both ends of the protective strip 503 are provided with movable columns 504. The movable columns 504 are slidably connected to the mounting base frame 3 through a connecting cylinder 505 provided on the mounting base frame 3.

[0054] Specifically, by setting up anti-collision mechanisms, the theodolite can be protected, avoiding the replacement costs caused by damage to the theodolite.

[0055] like Figure 2 and Figure 3 As shown, in an optional embodiment of the present invention, the first buffer spring 502 is connected to the mounting frame 3 via a connector 506.

[0056] Specifically, the first buffer spring is mounted on the mounting frame using a connector, which facilitates the replacement of parts.

[0057] like Figure 3As shown, in an optional embodiment of the present invention, a second buffer spring 507 is fixedly connected to one end of the movable column 504 located inside the connecting cylinder 505.

[0058] Specifically, the second buffer spring plays a buffering role, which helps to improve the protective effect.

[0059] like Figure 2 and Figure 4 As shown, in an optional embodiment of the present invention, the positioning mechanism includes:

[0060] A positioning plate 601 that is slidably connected to the mounting frame 3 and in contact with the theodolite 4;

[0061] A bidirectional threaded rod 602 is rotatably connected to the mounting base frame 3. Both ends of the bidirectional threaded rod 602 are threadedly connected to threaded sleeves 603. Each threaded sleeve 603 is rotatably connected to a movable sleeve 604. A linkage frame 605 is provided between the threaded sleeve 603 and the positioning plate 601. Both ends of the linkage frame 605 are rotatably connected to the movable sleeve 604 and the positioning plate 601, respectively. The top end of the bidirectional threaded rod 602 passes through the mounting base frame 3 and is connected to an operating knob 606. A fixed sleeve 607 is provided between the bidirectional threaded rod 602 and the operating knob 606. A third fastening knob 608 is threadedly connected to the fixed sleeve 607, and the third fastening knob 608 abuts against the outer wall of the bidirectional threaded rod 602.

[0062] Specifically, the positioning mechanism in this embodiment not only facilitates quick and easy installation and fixation of the theodolite, but also ensures the stability of the theodolite during use.

[0063] like Figure 4 As shown, in an optional embodiment of the present invention, both ends of the positioning plate 601 are slidably connected to the mounting frame 3 via a sliding groove 301 provided on the mounting frame 3.

[0064] Specifically, the positioning plate moves stably within the mounting frame via a sliding groove, thus ensuring the fixation of the theodolite.

[0065] like Figures 1 to 4 A specific embodiment of the on-site surveying equipment for engineering cost estimation according to this utility model includes:

[0066] The on-site surveying equipment for engineering cost includes a support frame 1, an adjustment frame 2 is fixedly installed at the top of the support frame 1, a mounting frame 3 is rotatably connected to the top of the adjustment frame 2, a theodolite 4 is clamped inside the mounting frame 3, and positioning mechanisms and anti-collision mechanisms are installed inside the mounting frame 3 and on both the left and right sides of the theodolite 4.

[0067] The support frame 1 includes multiple sets of telescopic rods 101. The top of each set of telescopic rods 101 is hinged to a connecting sleeve 102. A lifting cylinder 103 is fixedly connected inside the connecting sleeve 102. A lifting rod 104 is slidably connected inside the lifting cylinder 103. The top of the lifting rod 104 is fixedly connected to the adjusting frame 2. A first fastening knob 105 is threadedly connected to the outside of the connecting sleeve 102, and the first fastening knob 105 abuts against the outside of the lifting rod 104. The multiple sets of telescopic rods 101 and the connecting sleeve 102 together form a tripod structure. By adjusting the length of different telescopic rods 101, stable support can be provided for complex environments. During the surveying process, after loosening the first fastening knob 105, the lifting rod 104 can slide up and down inside the lifting cylinder 103, thereby adjusting the height of the theodolite 4. After adjustment, the first fastening knob 105 is tightened to fix it. The bottom ends of multiple sets of telescopic rods 101 are hinged with folding rods 106, and sliding sleeves 107 are hinged between the multiple sets of folding rods 106. The sliding sleeves 107 are slidably connected to the outside of the lifting cylinder 103. When the support frame 1 is not in use, the telescopic rods 101 can be folded by the multiple sets of folding rods 106. During the folding process, the sliding sleeves 107 slide on the outside of the lifting cylinder 103.

[0068] The adjustment frame 2 includes an adjustment head 201 and an adjustment seat 202. The adjustment head 201 is rotatably connected to the lifting rod 104 via a first rotating shaft 203. An operating handle 205 is fixedly connected to the front of the adjustment head 201. A first locking sleeve 206 is threadedly connected to the right end of the adjustment head 201. The bottom end of the adjustment seat 202 is rotatably connected to the adjustment head 201 via a second rotating shaft 207. A second locking sleeve 208 is threadedly connected to the front end of the second rotating shaft 207. The bottom end of the mounting frame 3 is rotatably connected to the adjustment seat 202 via a main shaft 204. A second fastening knob 209 is threadedly connected to the outer side of the adjustment seat 202, and the second fastening knob 209 abuts against the outer side of the main shaft 204. During surveying, loosening the first locking sleeve 206 allows the adjustment head 201 to rotate via the operating handle 205, thereby adjusting the theodolite 4's front and rear angles. After adjustment, the first locking sleeve 206 is tightened for fixation. Loosening the second locking sleeve 208 allows the adjustment seat 202 to swing left and right, thereby adjusting the theodolite 4's left and right angles. After adjustment, the second locking sleeve 208 is tightened for fixation. The mounting frame 3 can rotate via the main shaft 204 to adjust its direction. After adjustment, the second fastening knob 209 is tightened for fixation. This allows the theodolite 4's angle and direction to be flexibly adjusted, thus improving its applicability.

[0069] The anti-collision mechanism includes protective plates 501 movably mounted on both the left and right sides of the mounting frame 3. First buffer springs 502 are fixedly connected to the four corners of the protective plates 501 and the mounting frame 3. Protective strips 503 are installed on both the left and right ends of the front and rear sides of the mounting frame 3. Movable columns 504 are fixedly connected to the upper and lower ends of the protective strips 503. The movable columns 504 are slidably connected to the outer side of the mounting frame 3 via connecting cylinders 505. A second buffer spring 507 is fixedly connected to one end of the movable column 504 located inside the connecting cylinder 505. The theodolite 4 is then installed into the mounting frame. Inside the mounting frame 3, the mounting frame 3 itself serves as external protection for the theodolite 4. In the event of accidental collapse, the protective plate 501 protects the left and right sides of the mounting frame 3. The first buffer spring 502 dissipates impact energy through elastic deformation, while multiple sets of protective strips 503 protect the front and rear sides. The movable column 504 can move inside the connecting cylinder 505, and the second buffer spring 507 dissipates impact energy through elastic deformation, thus effectively protecting the theodolite 4 and improving the protective effect. Movable grooves 302 are provided on the left and right sides of the mounting frame 3 at positions corresponding to the protective plate 501. Multiple sets of first buffer springs 502 are fixedly connected to the inside of the movable grooves 302 through connectors 506. When a lateral impact load is applied to the protective plate 501, the first buffer spring 502 dissipates impact energy through elastic deformation, simultaneously triggering the protective plate 501 to move axially along the movable groove 302, preventing hard impact from being transmitted to the theodolite 4, thus ensuring the protective effect.

[0070] The positioning mechanism includes positioning plates 601 slidably connected inside the mounting frame 3 and located on the left and right sides of the theodolite 4. Inside the mounting frame 3, on the opposite side of each of the two sets of positioning plates 601, are rotatably connected bidirectional threaded rods 602. Both ends of the bidirectional threaded rods 602 are threadedly connected to threaded sleeves 603. The outer sides of each of the two sets of threaded sleeves 603 are rotatably connected to movable sleeves 604. Linkage frames 605 are installed between each of the two sets of movable sleeves 604 and the positioning plates 601, with both ends of the linkage frames 605 rotatably connected to the movable sleeves 604 and the positioning plates 601 respectively. The top of the bidirectional threaded rods 602, located on the mounting frame 4... An operating knob 606 is fixedly connected to the top of the mounting frame 3. When installing the theodolite 4 into the mounting frame 3, simply place the theodolite 4 inside the mounting frame 3, and then rotate the operating knob 606 to drive the bidirectional threaded rod 602 to rotate. Under the connection of the threaded sleeve 603, the two sets of moving sleeves 604 are moved synchronously. Under the transmission of the linkage frame 605, the positioning plate 601 is moved axially, thereby using the positioning plate 601 to fix the left and right sides of the theodolite 4. This not only facilitates the quick installation and fixation of the theodolite 4, but also ensures the stability of the theodolite 4 during use. Both the upper and lower ends of the positioning plate 601 are slidably connected to the interior of the mounting frame 3 via the sliding groove 301. A fixing sleeve 608 is fixedly connected to the top of the mounting frame 3 at the connection between the operating knob 606 and the bidirectional threaded rod 602. A third fastening knob 608 is threadedly connected to the interior of the fixing sleeve 608, and the third fastening knob 608 abuts against the outer side of the bidirectional threaded rod 602. The positioning plate 601 moves stably inside the mounting frame 3 via the sliding groove 301, thereby ensuring the fixing effect of the theodolite 4. After the theodolite 4 is fixed using the positioning plate 601, the third fastening knob 608 is tightened to abut against the connection between the bidirectional threaded rod 602 and the operating knob 606, thereby preventing the bidirectional threaded rod 602 from rotating, thus ensuring the firmness of the theodolite 4 after fixing.

[0071] One usage process of the on-site surveying equipment for engineering cost estimation according to this utility model embodiment includes:

[0072] After the theodolite 4 is installed inside the mounting frame 3, it is fixed by the positioning mechanism. The mounting frame 3 itself serves as external protection for the theodolite 4. In the event of accidental collapse, when a lateral impact load acts on the protective plate 501, the protective plate 501 protects the left and right sides of the mounting frame 3. The first buffer spring 502 dissipates the impact energy through elastic deformation, and simultaneously triggers the protective plate 501 to move axially along the movable groove 302. Multiple sets of protective strips 503 can protect the front and rear sides. The movable column 504 can move inside the connecting cylinder 505. The second buffer spring 507 dissipates the impact energy through elastic deformation, preventing hard collisions from being transmitted to the theodolite 4. During surveying, the first locking sleeve 20 is loosened. After 6, the adjustment head 201 can be rotated by the operating handle 205, thereby adjusting the front and rear angles of the theodolite 4. After adjustment, the first locking sleeve 206 is tightened for fixation. Loosening the second locking sleeve 206 allows the adjustment seat 202 to swing left and right, thereby adjusting the left and right angles of the theodolite 4. After adjustment, the second locking sleeve 206 is tightened for fixation. The mounting frame 3 can be rotated by the main shaft 204 to adjust the direction. After adjustment, the second fastening knob 209 is tightened for fixation. The entire operation process is simple and convenient. This utility model can effectively protect the theodolite 4 through its design, improving the protection effect and ensuring stability during use. Moreover, it can flexibly adjust the angle and direction of the theodolite 4, further improving its applicability.

[0073] The field surveying equipment for engineering cost estimation in this embodiment of the utility model, through the cooperative design of the mounting base and the positioning mechanism, allows the theodolite to be installed inside the mounting base, and then fixed by the positioning mechanism. The mounting base itself serves as an external protection for the theodolite. In the event of accidental collapse or when a lateral impact load acts on the protective plate, the protective plate protects the left and right sides of the mounting base. The first buffer spring dissipates the impact energy through elastic deformation, and simultaneously triggers the axial displacement of the protective plate along the movable groove. Multiple sets of protective strips protect the front and rear sides. The movable column can move inside the connecting cylinder, and the second buffer spring dissipates the impact energy through elastic deformation, preventing hard collisions from being transmitted to the theodolite, thereby effectively protecting the theodolite and improving the protection effect. At the same time, it not only facilitates quick and easy installation and fixing of the theodolite, but also ensures the stability of the theodolite during use. The design of the adjustment frame allows for flexible adjustment of the theodolite's angle during surveying. Loosening the first locking sleeve allows the adjustment head to rotate via the operating handle, enabling back-and-forth angle adjustment. After adjustment, the first locking sleeve is tightened for fixation. Loosening the second locking sleeve allows the adjustment seat to swing left and right, allowing for left-and-right angle adjustment of the theodolite. After adjustment, the second locking sleeve is tightened for fixation. The mounting frame can rotate via the main shaft to adjust the direction. After adjustment, the second fastening knob is tightened for fixation. This design allows for flexible adjustment of the theodolite's angle and direction, thus improving its applicability.

[0074] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A field surveying device for engineering cost estimation, characterized in that, include: Support frame (1); An adjustment bracket (2) is installed on the top of the support frame (1); The mounting frame (3) for mounting the theodolite (4) is rotatably connected to the top of the adjusting frame (2), and the mounting frame (3) is provided with a collision protection mechanism and a positioning mechanism. The collision avoidance mechanism includes: A protective plate (501) is installed on the mounting frame (3), and a first buffer spring (502) is provided between the protective plate (501) and the mounting frame (3). A protective strip (503) is installed on the mounting base frame (3). Both ends of the protective strip (503) are provided with movable columns (504). The movable columns (504) are slidably connected to the mounting base frame (3) through a connecting tube (505) provided on the mounting base frame (3). The positioning mechanism includes: Positioning plate (601) that is slidably connected to the mounting frame (3) and in contact with the theodolite (4); A bidirectional threaded rod (602) is rotatably connected to the mounting base frame (3). Both ends of the bidirectional threaded rod (602) are threadedly connected to threaded sleeves (603). Each threaded sleeve (603) is rotatably connected to a movable sleeve (604). A linkage frame (605) is provided between the threaded sleeve (603) and the positioning plate (601). Both ends of the linkage frame (605) are rotatably connected to the movable sleeve (604) and the positioning plate (601) respectively. The top end of the bidirectional threaded rod (602) passes through the mounting base frame (3) and is connected to an operating knob (606). A fixed sleeve (607) is provided between the bidirectional threaded rod (602) and the operating knob (606). A third fastening knob (608) is threadedly connected to the fixed sleeve (607), and the third fastening knob (608) abuts against the outer wall of the bidirectional threaded rod (602).

2. The field surveying equipment for engineering cost according to claim 1, characterized in that, The support frame (1) includes multiple telescopic rods (101), a connecting sleeve (102), and a lifting cylinder (103). The multiple telescopic rods (101) are all hinged to the connecting sleeve (102). The lifting cylinder (103) is fixed inside the connecting sleeve (102). A lifting rod (104) is slidably connected inside the lifting cylinder (103). The top of the lifting rod (104) is connected to the adjusting frame (2).

3. The field surveying equipment for engineering cost according to claim 2, characterized in that, The connecting sleeve (102) is provided with a first fastening knob (105), which passes through the connecting sleeve (102) and abuts against the lifting rod (104).

4. The field surveying equipment for engineering cost according to claim 2, characterized in that, The support frame (1) also includes a plurality of folding rods (106) and a sliding sleeve (107) hinged to the plurality of folding rods (106). The plurality of telescopic rods (101) are hinged to the plurality of folding rods (106) one by one, and the sliding sleeve (107) is slidably connected to the lifting cylinder (103).

5. The field surveying equipment for engineering cost according to claim 2, characterized in that, The adjustment frame (2) includes an adjustment head (201) and an adjustment seat (202). The adjustment head (201) is rotatably connected to the lifting rod (104) via a first rotating shaft (203), and the adjustment seat (202) is rotatably connected to the mounting frame (3) via a main shaft (204). The adjusting head (201) is provided with an operating handle (205); A first locking sleeve (206) is threaded onto the outer wall of one end of the first rotating shaft (203). The bottom end of the adjusting seat (202) is rotatably connected to the adjusting head (201) via a second rotating shaft (207), and a second locking sleeve (208) is threaded onto the outer wall of one end of the second rotating shaft (207). The adjustment seat (202) is provided with a second fastening knob (209), and the second fastening knob (209) abuts against the outer wall of the main shaft (204).

6. The field surveying equipment for engineering cost according to claim 1, characterized in that, The first buffer spring (502) is connected to the mounting frame (3) via a connector (506).

7. The field surveying equipment for construction cost according to claim 1, characterized in that, The movable column (504) is fixedly connected to a second buffer spring (507) at one end inside the connecting cylinder (505).

8. The field surveying equipment for engineering cost according to claim 1, characterized in that, Both ends of the positioning plate (601) are slidably connected to the mounting frame (3) via a groove (301) provided on the mounting frame (3).

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