Constructional engineering surveying pay-off device
By introducing a synchronization component and an inclined discharge pipe design into the wire feeding device, the problems of uneven feeding and poor wind resistance of traditional wire feeding devices are solved, achieving efficient and precise wire feeding operations and reducing material waste and environmental pollution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN KEXING CONSTR CO LTD
- Filing Date
- 2025-08-28
- Publication Date
- 2026-05-15
AI Technical Summary
Existing construction engineering surveying and setting-out devices suffer from poor material controllability, easy blockage and flow interruption, weak environmental adaptability, and poor wind resistance, resulting in low construction efficiency, low accuracy, and serious pollution.
The system employs a synchronous component between the feeding roller and the wheel, with the wheel rotating to drive the feeding roller to rotate. Combined with the inclined discharge pipe design, it ensures uniform discharge and prevents clumping by using stirring blades, thus enhancing wind resistance.
This achieved stable continuity in the layout process, improved construction efficiency and accuracy, reduced material waste and environmental pollution, and enhanced construction quality.
Smart Images

Figure CN224247043U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building engineering technology, and in particular to a building engineering surveying and setting-out device. Background Technology
[0002] In building construction, municipal road and site construction, surveying and setting out is a crucial and preliminary basic procedure. Its purpose is to accurately mark elements such as buildings, road boundaries, and pipeline routes from the design drawings onto the actual construction site, providing accurate benchmarks and basis for subsequent earthwork excavation, foundation construction, and other operations. Currently, lime powder is commonly used as a setting-out marking material in construction due to its advantages such as low cost, high visibility (usually white), and ease of acquisition.
[0003] Traditional line-laying methods mainly rely on manual labor or simple wheelbarrows. Manual line laying typically involves workers carrying ash hoppers or buckets and shaking or tilting them to drop lime along a pre-set baseline. While this method is flexible, it is entirely dependent on the operator's experience and skill, resulting in low efficiency, poor line continuity, uneven line width, difficulty in ensuring construction accuracy, and high labor intensity.
[0004] To improve efficiency, a hand-push type line-laying cart is now more commonly used. This device typically consists of a hopper containing lime, a set of wheels, and an open discharge port at the bottom of the hopper. It works by manually pushing the cart forward, allowing the lime to flow naturally from the discharge port under gravity, thus creating a marking line on the ground.
[0005] However, long-term engineering practice has revealed that this type of traditional line-laying device has many inherent defects, which seriously restrict the improvement of construction quality and efficiency. These defects are mainly reflected in the following aspects:
[0006] 1. Poor controllability of material discharge, prone to clogging and flow interruption: Traditional cart-type devices lack an active and controllable discharge mechanism. The flow of lime relies entirely on its own gravity and the passive coordination of the cart's movement speed. When lime becomes damp and clumps due to improper storage or a humid environment, its fluidity decreases significantly, easily forming "bridging" or complete blockage at the discharge port, causing interruptions in the line laying operation and requiring frequent manual unblocking, resulting in low efficiency. In addition, even if the lime is dry, an unreasonable discharge port design (such as an opening that is too large or too small) can also lead to uneven discharge, flow interruption, or excessive accumulation, resulting in inconsistent and unclear marking lines.
[0007] 2. Poor environmental adaptability and wind resistance: When working in open-air environments, lightweight lime powder is easily scattered by the wind. This not only results in serious waste of materials and increases construction costs, but also pollutes the construction site environment, affects the health of other workers, and the scattered lime will blur the edges of the marking lines, reducing their visibility. Utility Model Content
[0008] In view of the above situation and to overcome the defects of the prior art, this utility model provides a construction engineering surveying and setting-out device. This design effectively solves the problems of poor material controllability, easy blockage and flow interruption, weak environmental adaptability and poor wind resistance of existing surveying and setting-out equipment.
[0009] To achieve the above objectives, the present invention provides the following technical solution: The present invention includes a frame, with wheels mounted on the bottom of the frame, a front loading plate fixedly connected to the frame, the right side of the front loading plate tilting upwards, a storage box fixedly connected to the front loading plate, a distributing cylinder fixedly connected to the storage box, a downwardly tilted discharge pipe fixedly connected to the side of the distributing cylinder, a feeding roller rotatably connected inside the distributing cylinder, and a synchronization component installed between the feeding roller and the wheels.
[0010] Preferably, the synchronization component includes a bushing, which is rotatably connected to the frame and fixedly connected to the front wheel. A first sprocket is fixedly connected to the bushing. Support shafts are fixedly connected to both sides of the feed roller. The support shafts are rotatably connected to the frame and a second sprocket is fixedly connected to the support shaft. A chain is installed between the first sprocket and the second sprocket.
[0011] Preferably, the feeding roller has multiple ratchet grooves, which are arranged at equal angles around the periphery of the feeding roller.
[0012] Preferably, support rods are fixedly connected to both sides of the dispensing cylinder, and support plates are fixedly connected to the support rods. The support plates are fixedly connected to the vehicle frame, and both the support plates and the support rods are provided with shaft holes for the support shaft to mate with.
[0013] Preferably, a pad is fixedly connected to the frame, the pad has a groove, the storage box is located in the groove, a clamp is provided on the outside of the storage box, and a fixing bolt is installed between the clamp and the pad.
[0014] Preferably, a drive shaft is rotatably connected inside the storage tank, and a stirring blade is fixedly connected to the drive shaft.
[0015] Preferably, a handle is fixedly connected to the frame, and the handle is provided with an anti-slip sleeve.
[0016] Compared with the prior art, the outstanding advantages of this utility model are:
[0017] The present invention has a synchronization component installed between the inner feeding roller and the wheel. The rolling of the wheel drives the feeding roller to rotate in the distributing cylinder. The feeding roller continuously feeds the material to the discharge pipe, ensuring the uniformity of the material output from the discharge pipe and avoiding the problem of blockage at the feeding point.
[0018] The inner feed tube of this invention is inclined downward and the bottom of the feed tube is close together, which effectively improves the wind resistance during line laying and ensures the accuracy of line marking. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0020] Figure 2 This is a schematic diagram of the overall forward structure of this utility model.
[0021] Figure 3 This is a schematic diagram of the connection structure of the storage box of this utility model.
[0022] Figure 4 This is a schematic cross-sectional view of the storage box of this utility model.
[0023] Figure 5 This is a schematic diagram of the feeding roller connection structure of this utility model.
[0024] Figure 6 This is a schematic diagram of the vehicle frame structure of this utility model.
[0025] Labels in the diagram: 1. Frame; 2. Wheel; 3. Front plate; 4. Storage box; 5. Distributor cylinder; 6. Discharge pipe; 7. Feed roller; 8. Bushing; 9. First sprocket; 10. Support shaft; 11. Second sprocket; 12. Chain; 13. Racket groove; 14. Support rod; 15. Support plate; 16. Pad; 17. Groove; 18. Clamp; 19. Drive shaft; 20. Mixing blade; 21. Handle; 22. Anti-slip sleeve. Detailed Implementation
[0026] 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. 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.
[0027] Please see the appendix Figure 1-6This embodiment discloses a construction engineering surveying and setting-out device, comprising a frame 1, wheels 2 mounted on the bottom of the frame 1, a front carrier plate 3 fixedly connected to the frame 1, the right side of the front carrier plate 3 tilting upward, a storage box 4 fixedly connected to the front carrier plate 3, a distributing cylinder 5 fixedly connected to the storage box 4, a downwardly tilting discharge pipe 6 fixedly connected to the side of the distributing cylinder 5, a feeding roller 7 rotatably connected inside the distributing cylinder, and a synchronization component installed between the feeding roller 7 and the wheels 2.
[0028] The frame 1 is welded from cylindrical rods, and its overall shape resembles a pyramidal structure. There are three wheels 2 below the frame 1, arranged in a triangular pattern. The diameters of the two front wheels 2 are larger than those of the rear wheels 2, and the two front wheels 2 are positioned longitudinally on the same side. The front platform 3 is located in front of the two front wheels 2. The storage box 4 is placed vertically on the front platform. The storage box 4 has a feed inlet on its side, which holds lime powder. The feed inlet is the entrance for replenishing lime powder into the storage box 4. A distribution cylinder 5 is located behind the storage box 4. The side of the distribution cylinder 5 is connected to the discharge pipe 6, connecting the discharge pipe 6 to the inner cavity of the storage box 4. The feed roller 7 inside the distribution cylinder 5 rotates synchronously with the wheels 2. As the wheel 2 rotates, the feeding roller 7 moves the lime powder in the storage box 4 to the discharge pipe 6. The lime powder in the discharge pipe 6 slides down under the action of gravity. As the wheel 2 rotates, it drives the frame 1 to move forward. At the same time, the wheel 2 also drives the feeding roller 7 to feed the material evenly to the discharge pipe 6. During the forward movement of the frame 1, the discharge pipe 6 leaves a lime powder mark at the moving part of the frame 1, completing the line laying operation. Furthermore, in order to ensure that the frame 1 moves forward stably and straight, the frame 1 is equipped with two moving handles 21. When pushing the frame 1, the user is positioned between the two handles 21, which ensures stable movement of the frame 1 and ensures the accuracy of line laying. The handles 21 have rubber anti-slip sleeves 22, which improves the user experience.
[0029] The synchronous movement between wheel 2 and feed roller 7 is achieved through a first sprocket 9, a second sprocket 11, and a chain 12. The first sprocket 9 is fixedly connected to wheel 2 via bushing 8, and the second sprocket 11 is fixedly connected to feed roller 7 via support shaft 10. The chain 12 connects the first sprocket 9 and the second sprocket 11 together. When wheel 2 moves forward, it rolls on the ground, which drives bushing 8 to rotate. Bushing 8 drives the second sprocket 11 to rotate via the first sprocket 9 and chain 12. The second sprocket 11 drives the feed roller 7 to rotate via support shaft 10.
[0030] Furthermore, a flywheel structure can be added to the second sprocket 11 or the first sprocket 9 so that the wheel 2 can only drive the feed roller 7 to rotate during forward movement.
[0031] The feed roller 7 has ratchet grooves 13 on its cylindrical surface. During the rotation of the feed roller 7, each ratchet groove 13 can store a certain amount of lime powder, thus ensuring that the feed roller 7 can transport the lime powder into the feed pipe.
[0032] Furthermore, to enhance the supporting effect, support rods 14 are installed on both sides of the distribution cylinder. The support rods 14 are connected to the frame 1 via support plates 15. The support shaft 10 passes through the shaft holes of the support rods 14 and the support plates 15 and is fixedly connected to the second chain 12. In addition, the cooperation between the support rods 14 and the support plates 15 also plays a role in fixing the distribution cylinder.
[0033] Furthermore, to ensure the stability of the storage box 4 on the front plate 3, a pad 16 is provided on the frame 1. The groove 17 on the pad 16 is adapted to the outer contour of the storage box 4. The storage box 4 is placed obliquely in the groove 17. After the storage box 4 is placed, the outside of the storage box 4 is fixed by the clamp 18 and fixing bolts to prevent the storage box 4 from falling off during the movement.
[0034] Furthermore, to ensure that the material in the storage bin 4 can move smoothly into the distribution bin, a drive shaft 19 is provided in the storage bin 4. A stirring blade 20 is installed on the drive shaft 19. The stirring blade 20 has the function of crushing and stirring to avoid material jamming inside. The drive shaft 19 is driven by a drive motor and a reducer, which are installed above the storage bin 4.
[0035] This utility model has a novel structure, ingenious design, and simple and convenient operation. It effectively solves the problems of conventional building engineering surveying and setting-out devices being prone to shaking, difficult to move, occupying a large vertical space when not in use, and having no adjustable writing area or teaching board height.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A surveying and setting-out device for building engineering, characterized in that: The vehicle includes a frame (1), with wheels (2) mounted on the bottom of the frame (1). A front plate (3) is fixedly connected to the frame (1). The right side of the front plate (3) is tilted upward. A storage box (4) is fixedly connected to the front plate (3). A distribution cylinder (5) is fixedly connected to the storage box (4). A downwardly tilted discharge pipe (6) is fixedly connected to the side of the distribution cylinder (5). A discharge roller (7) is rotatably connected inside the distribution cylinder (5). A synchronization component is installed between the discharge roller (7) and the wheels (2).
2. The construction engineering surveying and setting-out device according to claim 1, characterized in that: The synchronization component includes a bushing (8), which is rotatably connected to the frame (1) and fixedly connected to the wheel (2). A first sprocket (9) is fixedly connected to the bushing (8). Support shafts (10) are fixedly connected to both sides of the feed roller (7). The support shafts (10) are rotatably connected to the frame (1). A second sprocket (11) is fixedly connected to the support shaft (10). A chain (12) is installed between the first sprocket (9) and the second sprocket (11).
3. A surveying and setting-out device for building engineering according to claim 1 or 2, characterized in that: The feeding roller (7) has multiple ratchet grooves (13) arranged at equal angles around the periphery of the feeding roller (7).
4. The construction engineering surveying and setting-out device according to claim 1, characterized in that: Both sides of the dispensing cylinder are fixedly connected to support rods (14), and support plates (15) are fixedly connected to the support rods (14). The support plates (15) are fixedly connected to the frame (1), and both the support plates (15) and the support rods (14) are provided with shaft holes for the support shaft (10) to fit.
5. A surveying and setting-out device for building engineering according to claim 1, characterized in that: A pad (16) is fixedly connected to the frame (1). The pad (16) has a groove (17). The storage box (4) is located in the groove (17). A clamp (18) is provided on the outside of the storage box (4). A fixing bolt is installed between the clamp (18) and the pad (16).
6. A surveying and setting-out device for building engineering according to claim 1 or 5, characterized in that: The storage box (4) is rotatably connected to a drive shaft (19), and a stirring blade (20) is fixedly connected to the drive shaft (19).
7. A surveying and setting-out device for building engineering according to claim 1, characterized in that: A handle (21) is fixedly connected to the frame (1), and an anti-slip sleeve (22) is provided on the handle (21).