Surveying and mapping device for construction cost budget of engineering site

Abstract

The utility model discloses a surveying and mapping device for construction site cost budget, and belongs to the field of constructional engineering. A surveying and mapping device for engineering site cost budget comprises a surveying and mapping instrument, surveying and mapping supports are arranged at the four corners of the bottom of the surveying and mapping instrument, the multiple surveying and mapping supports are evenly arranged in a surrounding mode, a shaft rod is inserted into the side, away from the surveying and mapping instrument, of each surveying and mapping support, and swing rods are fixedly connected to the two ends of each shaft rod. The side, away from the shaft rod, of the swing rod can swing and make contact with the ground. The support body is lifted after the swing rods are unfolded, the support is prevented from making direct contact with the ground, the rolling risk of a transport vehicle is reduced, the swing rods are folded and stored in a surrounding mode, compared with a traditional parallel storage mode, the occupied area is remarkably reduced, the swing rods can support the surveying and mapping support after being unfolded, and the contact area between the surveying and mapping support and the ground is increased; the vertical storage stability of the surveying and mapping bracket is ensured.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to a surveying device for on-site cost estimation of engineering projects. Background Technology

[0002] On-site cost budgeting is a core part of project management, directly affecting cost control and investment efficiency. It involves calculating the cost of materials by measuring dimensions on-site.

[0003] For example, patent application number 201821446989.9 published on the China Patent Network, entitled "Surveying Device for On-site Cost Budgeting of Engineering Projects," includes a first surveying body and a second surveying body. A lifting shaft is fixed between the first and second surveying bodies, and a horizontal shaft is rotatably connected between the first and second surveying bodies below the lifting shaft. A surveying instrument is fixed at the center of the outer wall of the horizontal shaft, an aiming device is fixed at the center of the top of the surveying instrument, and an objective lens is fixed at the center of the front surface of the surveying instrument. By welding a threaded sleeve to a first placement plate and embedding a screw in the threaded sleeve, and welding a turntable to one end of the threaded rod, and welding a handle to the lower surface of the turntable, the turntable can be rotated by shaking the handle, thereby rotating the screw, which in turn raises or lowers the threaded sleeve and the surveying device on the first placement plate, making it convenient to adjust the height of the surveying device.

[0004] However, the existing surveying equipment has a relatively simple structure, mainly relying on the surveying bracket at the bottom for support. When the surveying bracket needs to be stored, the spacing between the surveying brackets is shortened, which means that the surveying bracket can only be placed horizontally. When placed horizontally, the main body of the bracket is directly exposed to the ground layer, making it susceptible to being run over by construction site transport vehicles. At the same time, the parallel storage mode causes the footprint to increase exponentially, and frequent surface damage leads to an increased rate of damage to the protective coating. Utility Model Content

[0005] The purpose of this invention is to solve the problems in the prior art where the main body of the support is directly exposed to the ground when placed horizontally, making it susceptible to being run over by construction site transport vehicles. At the same time, the parallel storage mode causes the floor space to increase exponentially, and frequent surface damage leads to an increased rate of damage to the protective coating. Therefore, this invention proposes a surveying device for on-site cost estimation in engineering projects.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A surveying device for on-site cost estimation in engineering projects includes a surveying instrument. Each of the four corners of the bottom of the surveying instrument is provided with a surveying bracket. The number of surveying brackets is several and they are evenly arranged around the perimeter. A shaft is inserted into the side of each surveying bracket away from the surveying instrument. A swing arm is fixedly connected to both ends of the shaft. The side of the swing arm away from the shaft can swing and contact the ground.

[0008] As a preferred technical solution of this application, both ends of the shaft pass through the swing arm and extend to the outside of the swing arm. Both ends of the shaft are fixedly connected to rollers located on the outside of the swing arm. When the rollers come into contact with the ground and rub against it, they can use the shaft to drive the swing arm to swing.

[0009] As a preferred technical solution of this application, the end of the swing arm away from the shaft is movably connected to a support wheel via a bearing, and the support wheel can be flush with the roller and in contact with the ground after the swing arm swings.

[0010] As a preferred technical solution of this application, an extension plate is fixedly connected to one end of the swing arm near the shaft, and a spring plate is fixedly connected to the top of the extension plate. The side of the spring plate away from the extension plate contacts the outer side of the surveying bracket, and the spring plate is elastic.

[0011] As a preferred technical solution of this application, a damping pad is fixedly connected to the bottom of the extension plate, and the side of the damping pad away from the extension plate can contact the ground after the swing arm elastically returns to its original position.

[0012] As a preferred technical solution of this application, the surveying bracket is fixedly connected to both sides of the bracket. The surface of the connecting block is hinged with a claw by a spring pin. The claw extends to both sides of the swing arm from the side away from the connecting block. The claw can swing to the top of the swing arm with the spring pin as the axis and restrict the return of the swing arm.

[0013] As a preferred technical solution of this application, a force plate is fixedly connected to the side of the claw near the connecting block, and a wheel is sleeved on the surface of the surveying bracket. The wheel can contact the force plate and squeeze the force plate when falling, causing the claw to swing.

[0014] As a preferred technical solution of this application, the surveying support and the surveying instrument are hinged to each other by a pin shaft, the bottom of the surveying instrument is fixedly connected to a screw, the surface of the screw is threaded with an adjusting block, and the adjusting block is hinged to the surveying support by a crank.

[0015] As a preferred technical solution of this application, the bottom end of the screw passes through the wheel and extends to the bottom of the wheel, and the screw is slidably connected to the wheel.

[0016] As a preferred technical solution of this application, a limiting strip is fixedly connected to the surface of the wheel, and the side of the limiting strip away from the wheel extends to both sides of the surveying bracket and is slidably connected to the surveying bracket.

[0017] Compared with the prior art, this utility model provides a surveying device for on-site cost estimation in engineering projects, which has the following beneficial effects:

[0018] 1. The surveying device in the on-site cost budget of this project uses a swing arm to lift the main body of the support after unfolding, avoiding direct contact between the support and the ground and reducing the risk of being run over by transport vehicles. The swing arm is folded around and stored, which significantly reduces the floor space compared to the traditional parallel storage mode. The swing arm can support the surveying support after unfolding, increase the contact area between the surveying support and the ground, and ensure the vertical storage stability of the surveying support.

[0019] 2. The surveying device for on-site cost estimation of this project uses the friction between the rollers and the ground to drive the shaft to rotate, thereby achieving the passive deployment of the pendulum and reducing manual operation steps.

[0020] 3. The surveying device for on-site cost estimation of this project uses a combination of support wheels and rollers to contact the ground, distributing the load pressure and preventing local sinking or slippage. The support wheels can rotate freely with the undulations of the ground, keeping the contact surface between the swing arm and the ground stable.

[0021] 4. The surveying device for the on-site cost budget of this project uses a spring plate to store elastic potential energy when the pendulum is extended and automatically pulls the pendulum back when it is folded up, simplifying the folding operation. The spring plate absorbs the impact force when the pendulum swings, reducing vibration interference to the surveying instrument.

[0022] 5. The surveying device used in the on-site cost budget of this project uses friction to suppress accidental movement when it touches the ground through the damping pad, thereby improving static stability. The damping pad replaces the support and directly touches the ground, reducing scratch damage to the support surface caused by hard objects on the ground.

[0023] 6. The surveying device for on-site cost estimation of this project forms a rigid limit after the claw swings to the top of the swing arm, preventing the swing arm from accidentally folding and ensuring stable support. The spring pin allows the claw to automatically reset after being subjected to external force, and the unlocking process does not require complicated operation.

[0024] 7. The surveying device for on-site cost estimation of this project achieves an integrated operation logic of "locking when descending and unlocking when rising" through the linkage of the wheel lifting and the chuck action. The mechanical pressure of the wheel drives the chuck, avoiding the problem of insufficient locking caused by purely manual operation.

[0025] 8. The surveying device for on-site cost estimation of this project controls the lifting and lowering of the screw through a rotating adjustment block, and amplifies the stroke through a crank to achieve fine adjustment of the bracket unfolding angle. A single adjustment block drives multiple brackets to move synchronously, ensuring the consistency of the movement of each support point during the unfolding / retraction process.

[0026] 9. The surveying device for the on-site cost budget of this project uses a screw rod to adjust the angle of the support and to control the vertical lifting and lowering of the wheel through a plug-in connection, which simplifies the structural design.

[0027] 10. The surveying device for the on-site cost budget of this project uses limit strips to restrict the wheel to move only along the axis of the surveying support, preventing jamming caused by rotation or skew. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Figure 2 This is a bottom view of the structure of this utility model;

[0030] Figure 3 This is a partial structural schematic diagram of the present invention;

[0031] Figure 4 This is a schematic diagram of the surveying support structure of this utility model;

[0032] Figure 5 This is a schematic diagram showing a partial structural separation of the present invention;

[0033] Figure 6 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0034] In the diagram: 1. Surveying instrument; 2. Surveying support; 3. Shaft; 4. Swing rod; 5. Roller; 6. Support wheel; 7. Extension plate; 8. Spring plate; 9. Damping pad; 10. Connecting block; 11. Claw; 12. Force plate; 13. Wheel; 14. Screw; 15. Adjusting block; 16. Crank; 17. Limiting strip. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0036] Example 1:

[0037] Reference Figure 1-6A surveying device for on-site cost estimation in engineering projects includes a surveying instrument 1. Surveying supports 2 are installed at each of the four corners of the bottom of the surveying instrument 1. Several surveying supports 2 are arranged evenly in a circular pattern. A shaft 3 is inserted into the side of each surveying support 2 away from the surveying instrument 1. A swing arm 4 is fixedly connected to both ends of the shaft 3. The side of the swing arm 4 away from the shaft 3 can swing and contact the ground. When the swing arm 4 is unfolded, it raises the main body of the support, preventing the support from directly contacting the ground and reducing the risk of being run over by transport vehicles. The swing arm 4 folds and stores in a circular pattern, significantly reducing the floor space compared to the traditional parallel storage mode. The swing arm 4 can also adjust the position of the surveying support 2 after unfolding. The support increases the contact area between the surveying support 2 and the ground, ensuring the vertical storage stability of the surveying support 2. Both ends of the shaft 3 pass through the swing arm 4 and extend to the outside of the swing arm 4. Both ends of the shaft 3 are fixedly connected to rollers 5 located on the outside of the swing arm 4. When the rollers 5 rub against the ground, they can drive the swing arm 4 to swing using the shaft 3. The end of the swing arm 4 away from the shaft 3 is movably connected to a support wheel 6 through a bearing. The support wheel 6 can be flush with the rollers 5 and contact the ground after the swing arm 4 swings. An extension plate 7 is fixedly connected to the end of the swing arm 4 near the shaft 3. A spring plate 8 is fixedly connected to the top of the extension plate 7. The side of the spring plate 8 away from the extension plate 7 Contacting the outer side of the surveying bracket 2, the spring plate 8 is elastic. A damping pad 9 is fixedly connected to the bottom of the extension plate 7. The side of the damping pad 9 away from the extension plate 7 can contact the ground after the swing rod 4 elastically returns to its original position. Connecting blocks 10 are fixedly connected to both sides of the surveying bracket 2. The surface of the connecting block 10 is hinged with a pawl 11 by a spring pin. The side of the pawl 11 away from the connecting block 10 extends to both sides of the swing rod 4. The pawl 11 can swing to the top of the swing rod 4 around the spring pin and restrict the return of the swing rod 4. A force plate 12 is fixedly connected to the side of the pawl 11 near the connecting block 10. A wheel is fitted on the surface of the surveying bracket 2. 13. The wheel 13 can contact the force plate 12 when falling and squeeze the force plate 12 to carry the claw 11 to swing. The surveying bracket 2 and the surveying instrument 1 are hinged to each other by a pin. The bottom of the surveying instrument 1 is fixedly connected to a screw 14. The surface of the screw 14 is threadedly connected to an adjusting block 15. The adjusting block 15 is hinged to the surveying bracket 2 by a crank 16. The bottom end of the screw 14 passes through the wheel 13 and extends to the bottom of the wheel 13. The screw 14 is slidably connected to the wheel 13. The surface of the wheel 13 is fixedly connected to a limiting strip 17. The side of the limiting strip 17 away from the wheel 13 extends to both sides of the surveying bracket 2 and is slidably connected to the surveying bracket 2.

[0038] Specifically, the surveying device in the on-site cost budget of this project operates as follows: the surveying support 2 extends around the bottom of the surveying instrument 1, the swing arm 4 is held tightly against the outside of the surveying support 2 by the elastic force of the spring plate 8, and the support wheel 6 and roller 5 are aligned. When it is necessary to retract or adjust the height of the surveying support 2, the adjusting block 15 is rotated, and the crank 16 pushes the surveying support 2 to retract axially around the hinge pin, shortening the distance between the surveying supports. This allows the wheel 13 to slide along the surveying support 2 through the limiting strip 17 on its surface, ensuring that the wheel 13 moves vertically. During the movement of the surveying support 2, the roller 5 contacts and rubs against the ground, causing the shaft 3 to rotate, forcing the swing arm 4 to swing outward, and the support wheel 6 follows suit. The swing arm 4 extends to be flush with the roller 5, forming a multi-point support by touching the ground together, which enhances stability. The spring plate 8 is stretched when the swing arm 4 extends, storing elastic potential energy. The damping pad 9 increases friction after touching the ground to prevent the device from sliding. At this time, the wheel 13, which is freed from the pressure of the surveying bracket 2, moves down to press the force plate 12, forcing the claw 11 to swing around the spring pin and engage with both sides of the swing arm 4, locking the extended state. The support wheel 6 at the end of the swing arm 4 and the roller 5 share the load, avoiding local stress concentration and reducing the impact of uneven ground. At this time, both the roller 5 and the support wheel 6 can support the surveying bracket 2, increasing the contact area between the surveying bracket 2 and the ground, and maintaining the stability of the surveying bracket 2 in vertical placement.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A surveying device for on-site cost estimation in engineering projects, comprising a surveying instrument (1), characterized in that, The surveying instrument (1) has four surveying brackets (2) at its bottom corners. There are several surveying brackets (2) arranged evenly around the bottom. A shaft (3) is inserted into the side of the surveying bracket (2) away from the surveying instrument (1). A swing rod (4) is fixedly connected to both ends of the shaft (3). The side of the swing rod (4) away from the shaft (3) can swing and contact the ground.

2. The surveying device for on-site cost estimation of engineering projects according to claim 1, characterized in that, Both ends of the shaft (3) pass through the swing arm (4) and extend to the outside of the swing arm (4). Both ends of the shaft (3) are fixedly connected to rollers (5) located outside the swing arm (4). When the rollers (5) rub against the ground, they can use the shaft (3) to drive the swing arm (4) to swing.

3. The surveying device for on-site cost estimation of engineering projects according to claim 2, characterized in that, The end of the swing arm (4) away from the shaft (3) is movably connected to a support wheel (6) via a bearing. The support wheel (6) can be flush with the roller (5) and in contact with the ground after the swing arm (4) swings.

4. The surveying device for on-site cost estimation of engineering projects according to claim 3, characterized in that, An extension plate (7) is fixedly connected to one end of the swing arm (4) near the shaft (3). A spring plate (8) is fixedly connected to the top of the extension plate (7). The side of the spring plate (8) away from the extension plate (7) contacts the outside of the surveying bracket (2). The spring plate (8) is elastic.

5. The surveying device for on-site cost estimation of engineering projects according to claim 4, characterized in that, The bottom of the extension plate (7) is fixedly connected to a damping pad (9), and the side of the damping pad (9) away from the extension plate (7) can contact the ground after the swing rod (4) is elastically reset.

6. The surveying device for on-site cost estimation of engineering projects according to claim 5, characterized in that, Both sides of the surveying bracket (2) are fixedly connected to connecting blocks (10). The surface of the connecting block (10) is hinged with a claw (11) by a spring pin. The claw (11) extends from the side away from the connecting block (10) to both sides of the swing rod (4). The claw (11) can swing to the top of the swing rod (4) with the spring pin as the axis and restrict the reset of the swing rod (4).

7. A surveying device for on-site cost estimation of engineering projects according to claim 6, characterized in that, The claw (11) is fixedly connected to a force plate (12) on the side near the connecting block (10). A wheel (13) is fitted on the surface of the surveying bracket (2). The wheel (13) can contact the force plate (12) and squeeze the force plate (12) to swing the claw (11) when it falls.

8. A surveying device for on-site cost estimation of engineering projects according to claim 7, characterized in that, The surveying support (2) and the surveying instrument (1) are hinged to each other by a pin. The bottom of the surveying instrument (1) is fixedly connected to a screw (14). The surface of the screw (14) is threaded with an adjusting block (15). The adjusting block (15) is hinged to the surveying support (2) by a crank (16).

9. A surveying device for on-site cost estimation of engineering projects according to claim 8, characterized in that, The bottom end of the screw (14) passes through the wheel (13) and extends to the bottom of the wheel (13), and the screw (14) is slidably connected to the wheel (13).

10. A surveying device for on-site cost estimation of engineering projects according to claim 7, characterized in that, The surface of the wheel (13) is fixedly connected to a limiting strip (17), and the limiting strip (17) extends from the side away from the wheel (13) to both sides of the surveying bracket (2) and is slidably connected to the surveying bracket (2).

Images