An engineering cost field surveying and mapping device
By designing a locking mechanism, the problem of unstable installation of engineering cost surveying equipment on rugged terrain was solved, achieving stable fixation and portability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG EXPRESSWAY LAIGANG GREEN CONSTR DEV CO LTD
- Filing Date
- 2025-09-01
- Publication Date
- 2026-06-26
AI Technical Summary
Existing engineering cost surveying equipment lacks balance and is difficult to install stably on uneven ground.
A locking mechanism was designed, including a rotating shaft, a rotating component, a connecting rod, a snap-fit block, a guide plate, and a knob. By adjusting the length of the outrigger and utilizing the locking groove, magnetic plate, and anchor rod, the outrigger can be stably fixed.
Stable installation of the equipment was achieved on rugged terrain, improving its stability and portability.
Smart Images

Figure CN224414825U_ABST
Abstract
Description
Technical Field
[0001] This utility model is an on-site surveying device for engineering cost estimation, belonging to the field of on-site surveying technology. Background Technology
[0002] Construction cost engineering is one of the popular majors newly added by the Ministry of Education in response to the needs of national economic and social development. It is an emerging discipline that has developed from the construction engineering management major, based on economics, management, and civil engineering theories.
[0003] Patent CN213779037U discloses a field surveying device for engineering cost estimation, comprising: a foldable support frame, which includes a vertical main rod and multiple symmetrically arranged secondary rods pivotally connected to its outer surface; and a support mechanism for adjusting the angle between the secondary rods and the main rod. Adjusting the angle between the main rod and the secondary rods via the support mechanism allows for the foldable support frame to be stored, making it easier to transport. A lifting mechanism allows for height adjustment of the surveying instrument, and because the bearing platform is connected to the top of the base, the angle of the surveying instrument can also be adjusted.
[0004] In implementing this application, the following problems were found with the technology: during on-site surveying, the ground conditions may be uneven, and the balance of the device installed on uneven ground is somewhat lacking. Therefore, an on-site surveying device for engineering cost is provided. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an on-site surveying device for engineering cost.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution:
[0007] An engineering cost on-site surveying device includes a theodolite, which is fixedly mounted on a mounting plate. Several movable supports are hinged to the bottom of the mounting plate. Support legs are slidably connected inside the movable supports. A fixed frame is fixedly sleeved at the end of the movable supports. A locking mechanism that cooperates with the support legs is provided inside the fixed frame.
[0008] Furthermore, the locking mechanism includes a rotating shaft rotatably connected inside the fixed frame. A rotating component is fixed on the outer surface of the rotating shaft. A connecting rod is rotatably connected to each of the two side legs of the rotating component. The end of the connecting rod is movably connected to the end of the locking block. The locking block is linearly slidably connected to the slide rail. The slide rail is fixed inside the fixed frame. Several locking holes are provided on the support legs. Several locking grooves that mate with the locking holes are provided on the inner wall of the movable bracket. Both the locking grooves and the locking holes are adapted to the locking block.
[0009] Furthermore, the locking mechanism also includes two guide plates that extend through the rotating shaft to one end of the outside of the fixed frame. The two guide plates are symmetrically arranged on the outer surface of the rotating shaft. A knob is slidably sleeved on the rotating shaft and the guide plates. A knob groove that cooperates with the knob is opened on the outer surface of the fixed frame.
[0010] Furthermore, two limiting plates that cooperate with the knob are fixed at the end of the rotating shaft, and the limiting plates and the guide plate are arranged in a cross shape on the outer circumference of the rotating shaft.
[0011] Furthermore, the outer surface of the knob is provided with a locking groove, and the inner wall of the knob groove is provided with a locking washer that cooperates with the locking groove.
[0012] Furthermore, a magnetic piece is provided on the side of the knob near the knob groove, and a magnet that cooperates with the magnetic piece is provided on the inner wall of the knob groove.
[0013] Furthermore, the slide rail includes a fixed slide rail and a movable slide rail. The fixed slide rail is fixed inside the fixed frame, and the movable slide rail is fixed to the fixed slide rail by long screws. A slide rail groove is formed between the fixed slide rail and the movable slide rail, and the locking block is slidably connected to the slide rail groove.
[0014] Furthermore, the end of the outrigger is provided with an anchor rod portion, and a foot pedal is provided on the outer surface of the outrigger above the anchor rod portion.
[0015] The beneficial effects of this utility model are:
[0016] Through the design of the locking mechanism, when facing rugged terrain, the extension length of the outriggers from the movable bracket is adjusted. After the length adjustment is completed, rotating the knob drives the guide plate and the rotating shaft to rotate. The rotating shaft drives the rotating component to rotate, which pushes the connecting rod to a horizontal position. Then, the connecting rod pushes the locking block to slide linearly in the slide rail. The end of the locking block will sequentially engage with the locking hole on the outrigger and the locking groove on the movable bracket, thereby locking the fixed frame, movable bracket and outrigger into a whole. Then, pushing the knob to slide on the guide plate makes the knob engage with the knob groove, realizing the limiting and fixing of the knob, thus achieving the purpose of limiting the locking mechanism.
[0017] The design of locking groove and locking washer improves the snap-fit capability between knob and knob groove, thus achieving snap-fit fixation between knob and knob groove.
[0018] The design of magnetic plates and magnets enhances the interlocking ability between the knob and the knob slot, enabling magnetic fixation of the knob and the knob slot.
[0019] The design of the anchor bolt and the pedal allows the anchor bolt at the bottom of the outrigger to be quickly inserted into the soil by stepping on the pedal. The anchor bolt helps the outrigger break through the soil. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the structure of an engineering cost on-site surveying device according to the present invention. Figure 1 ;
[0022] Figure 2 This is a schematic diagram of the structure of an engineering cost on-site surveying device according to the present invention. Figure 2 ;
[0023] Figure 3 This is a schematic diagram of the locking mechanism structure of an engineering cost on-site surveying equipment in the locked state according to this utility model;
[0024] Figure 4 This is a schematic diagram of the locking mechanism structure of an engineering cost on-site surveying equipment in the open state according to the present invention;
[0025] Figure 5 This is a schematic diagram of the locking mechanism structure of an engineering cost on-site surveying device according to the present invention;
[0026] Figure 6 This is a partial structural diagram of the locking mechanism of an engineering cost on-site surveying device according to the present invention.
[0027] In the diagram, 1. Theodolite; 2. Mounting plate; 3. Movable bracket; 4. Fixed frame; 5. Support leg; 6. Anchor bolt; 7. Rotating shaft; 8. Rotating component; 9. Connecting rod; 10. Fixed slide rail; 11. Movable slide rail; 12. Clip block; 13. Guide plate; 14. Limiting plate; 15. Knob; 16. Locking groove; 17. Long screw; 18. Knob groove; 19. Slot. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] Please see Figures 1-6 This utility model provides a technical solution for on-site surveying equipment for engineering cost estimation, including a theodolite 1, which is fixedly installed on a mounting plate 2. Several movable supports 3 are hinged to the bottom of the mounting plate 2. Support legs 5 are slidably connected inside the movable supports 3. A fixed frame 4 is fixedly sleeved at the end of the movable supports 3. A locking mechanism that cooperates with the support legs 5 is provided inside the fixed frame 4.
[0030] See Figures 3-6The locking mechanism includes a rotating shaft 7 rotatably connected inside the fixed frame 4. A rotating component 8 is fixed to the outer surface of the rotating shaft 7. A connecting rod 9 is rotatably connected to each of the two side legs of the rotating component 8. The end of the connecting rod 9 is movably connected to the end of the locking block 12. The locking block 12 is linearly slidably connected to a slide rail, which is fixed inside the fixed frame 4. Several locking holes are provided on the support leg 5. Several locking grooves 19 that mate with the locking holes are provided on the inner wall of the movable bracket 3. Both the locking grooves 19 and the locking holes are adapted to the locking block 12. The locking mechanism also includes two guide plates 13 that movably extend from the rotating shaft 7 to one end of the fixed frame 4. The two guide plates 13 are symmetrically arranged on the outer surface of the rotating shaft 7. A knob 15 is slidably sleeved on the rotating shaft 7 and the guide plates 13. A knob groove 18 that mates with the knob 15 is provided on the outer surface of the fixed frame 4. Two limiting plates 14, which cooperate with the knob 15, are fixed to the end of the rotating shaft 7. The limiting plates 14 and the guide plate 13 are arranged in a cross shape on the outer circumference of the rotating shaft 7. Through the design of the locking mechanism, when facing a rugged site, the extension length of the outrigger 5 from the movable bracket 3 is adjusted. After the length adjustment is completed, the knob 15 is rotated to drive the guide plate 13 and the rotating shaft 7 to rotate. The rotating shaft 7 will drive the rotating component 8 to rotate. The rotating component 8 will push the connecting rod 9 to a horizontal state. Then, the connecting rod 9 will push the locking block 12 to slide linearly in the slide rail. The end of the locking block 12 will sequentially engage with the locking hole on the outrigger and the locking groove 19 on the movable bracket 3, thereby locking the fixed frame 4, the movable bracket 3 and the outrigger 5 into a whole. Then, the knob 15 is pushed to slide on the guide plate 13, so that the knob 15 engages in the knob groove 18, thereby limiting and fixing the knob 15 and achieving the purpose of limiting the locking mechanism.
[0031] See Figures 3-5 The outer surface of the knob 15 is provided with a locking groove 16, and the inner wall of the knob groove 18 is provided with a locking washer that cooperates with the locking groove 16. Through the design of the locking groove 16 and the locking washer, the snap-fit capability between the knob 15 and the knob groove 18 is improved, and the snap-fit fixation of the knob 15 and the knob groove 18 is realized.
[0032] The knob 15 is provided with a magnetic clasp (not shown in the figure) on the side near the knob groove 18, and a magnet (not shown in the figure) is provided on the inner wall of the knob groove 18 to cooperate with the magnetic clasp. Through the design of the magnetic clasp and the magnet, the snap-fit capability between the knob 15 and the knob groove 18 is improved, and the magnetic fixation of the knob 15 and the knob groove 18 is realized.
[0033] See Figures 5-6The slide rail includes a fixed slide rail 10 and a movable slide rail 11. The fixed slide rail 10 is fixed inside the fixed frame 4, and the movable slide rail 11 is fixed on the fixed slide rail 10 by a long screw 17. A slide rail groove is formed between the fixed slide rail 10 and the movable slide rail 11, and the snap-fit block 12 is slidably connected to the slide rail groove.
[0034] See Figures 1-2 The support leg 5 has an anchor rod 6 at its end, and a foot pedal is provided on the outer surface of the support leg 5 above the anchor rod 6. Through the design of the anchor rod 6 and the foot pedal, the anchor rod 6 at the bottom of the support leg 5 can be quickly inserted into the soil by stepping on the foot pedal. The anchor rod 6 can help the support leg 5 to break through the soil.
[0035] The circuits and electronic components, modules and controllers, or the heat dissipation holes and maintenance doors in the space of the adapted electrical equipment are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated. The content protected by this application does not involve improvements to software and methods or heat dissipation and maintenance.
[0036] When facing rugged terrain, the extension length of the outrigger 5 from the movable bracket 3 is adjusted. After the length adjustment is completed, the guide plate 13 and the rotating shaft 7 are rotated by turning the knob 15. The rotating shaft 7 drives the rotating component 8 to rotate, and the rotating component 8 pushes the connecting rod 9 to a horizontal state. Then, the connecting rod 9 pushes the locking block 12 to slide linearly in the slide rail. The end of the locking block 12 will sequentially engage with the locking hole on the outrigger and the locking groove 19 on the movable bracket 3, thereby locking the fixed frame 4, the movable bracket 3 and the outrigger 5 into a whole. Then, the knob 15 is pushed to slide on the guide plate 13, so that the knob 15 engages in the knob groove 18, thereby limiting and fixing the knob 15 and achieving the purpose of limiting the locking mechanism.
[0037] 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. 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. An on-site cost estimation surveying device, characterized in that, The system includes a theodolite (1), which is fixedly mounted on a mounting plate (2). Several movable supports (3) are hinged to the bottom of the mounting plate (2). Support legs (5) are slidably connected within each movable support (3). A fixed frame (4) is fixedly fitted at the end of each movable support (3). A locking mechanism that cooperates with the support legs (5) is provided within the fixed frame (4). The locking mechanism includes a rotating shaft (7) rotatably connected inside the fixed frame (4). A rotating component is fixed to the outer surface of the rotating shaft (7). 8) A connecting rod (9) is rotatably connected to each of the two side legs of the rotating part (8). The end of the connecting rod (9) is movably connected to the end of the snap-fit block (12). The snap-fit block (12) is linearly slidably connected to the slide rail. The slide rail is fixed inside the fixed frame (4). Several snap-fit holes are opened on the support leg (5). Several slots (19) that cooperate with the snap-fit holes are opened on the inner wall of the movable bracket (3). The slots (19) and the snap-fit holes are both adapted to the snap-fit block (12).
2. The on-site engineering cost surveying equipment according to claim 1, characterized in that, The locking mechanism also includes two guide plates (13) through which the rotating shaft (7) extends to one end of the outside of the fixed frame (4). The two guide plates (13) are symmetrically arranged on the outer surface of the rotating shaft (7). A knob (15) is slidably sleeved on the rotating shaft (7) and the guide plates (13). A knob groove (18) that cooperates with the knob (15) is opened on the outer surface of the fixed frame (4).
3. The on-site engineering cost surveying equipment according to claim 2, characterized in that, The end of the rotating shaft (7) is fixed with two limiting plates (14) that cooperate with the knob (15). The limiting plates (14) and the guide plate (13) are arranged in a cross shape on the outer circumference of the rotating shaft (7).
4. The on-site engineering cost surveying equipment according to claim 3, characterized in that, The outer surface of the knob (15) is provided with a locking groove (16), and the inner wall of the knob groove (18) is provided with a locking washer that cooperates with the locking groove (16).
5. The on-site engineering cost surveying equipment according to claim 4, characterized in that, The knob (15) has a magnetic piece on the side near the knob groove (18), and the inner wall of the knob groove (18) has a magnet that cooperates with the magnetic piece.
6. The on-site engineering cost surveying equipment according to claim 5, characterized in that, The slide rail includes a fixed slide rail (10) and a movable slide rail (11). The fixed slide rail (10) is fixed inside the fixed frame (4). The movable slide rail (11) is fixed on the fixed slide rail (10) by a long screw (17). A slide rail groove is formed between the fixed slide rail (10) and the movable slide rail (11). The snap-fit block (12) is slidably connected to the slide rail groove.
7. The on-site engineering cost surveying equipment according to claim 6, characterized in that, The end of the support leg (5) is provided with an anchor rod part (6), and a foot pedal is provided on the outer surface of the support leg (5) and above the anchor rod part (6).