Lofting device
By using a layout trolley with an infrared monitoring and alarm system in the layout device, the problem of elevation and flatness control accuracy caused by the skewness and large spacing of the reinforcing piles was solved, and high-precision elevation and flatness control was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-07
AI Technical Summary
In existing technologies, when controlling elevation and flatness by driving steel piles, the steel piles are easily affected by external factors, causing them to deviate in a way that is difficult to detect. Furthermore, the large spacing between the steel piles causes the wire rope to sag, affecting the accuracy of elevation and flatness control.
Multiple staking trolleys are used, and infrared transmitters and receivers are used to monitor the trolleys' deviation. An alarm is triggered to indicate the deviation. The spacing can be adjusted by moving the trolleys, which replaces steel piles for elevation and flatness control.
It enables real-time monitoring and timely adjustment of the staking trolley's deviation, avoiding the impact of minor deviations on flatness and elevation control accuracy, solving the problem of wire rope deflection, and improving construction accuracy.
Smart Images

Figure CN224092282U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of road leveling, specifically to a layout device. Background Technology
[0002] During construction, projects such as road surface and bridge deck paving, and site leveling and hardening require high precision in elevation and flatness. Traditionally, this involves driving reinforcing steel piles into the road surface and using steel wire ropes to control elevation positioning. However, in actual construction, because these piles are manually driven into the soil, they are highly susceptible to external influences, leading to loosening or deviation. Minor loosening or deviation is difficult to detect with the naked eye and directly affects the accuracy of the steel wire ropes in controlling elevation and flatness. Furthermore, existing technology typically involves large spacing between reinforcing steel piles. In practice, this large spacing can cause the steel wire ropes to sag, and the spacing of already driven piles cannot be adjusted in a timely manner, further impacting the accuracy of the steel wire ropes in controlling elevation and flatness.
[0003] To address these technical problems, a layout device is proposed. Utility Model Content
[0004] This utility model provides a layout device to solve the problem that in the prior art, layout is carried out by driving steel piles. When the steel piles are used to control the elevation and flatness of the wire rope, the steel piles may be deviated by external influences, which is difficult to detect with the naked eye, thus affecting the accuracy of elevation and flatness control. In addition, if the spacing between steel piles is too large, the wire rope will sag, which will also affect the accuracy of elevation and flatness control.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0006] A layout device includes a plurality of layout trolleys arranged in a front-to-back configuration, the layout trolleys comprising:
[0007] Vehicle body;
[0008] The pillars are vertically installed on the vehicle body, with a horizontal mounting plate on top;
[0009] The outer casing has a sliding sleeve located on the outside of the column;
[0010] The drive assembly, mounted on the mounting plate, is used to drive the outer casing to slide up and down outside the column;
[0011] The cross brace is connected at one end to the upper part of the outer wall of the outer casing, and at the other end it has a recessed groove for placing the wire rope.
[0012] The mounting ring is set on the cross brace, and the front outer wall is equipped with an infrared transmitter and the rear outer wall is equipped with an infrared receiver target.
[0013] It also includes alarms;
[0014] When the infrared receiver target of any staking trolley fails to receive infrared light emitted by the infrared transmitter of the adjacent trolley, the alarm of that staking trolley will sound.
[0015] Specifically, the drive assembly includes a winch mounted on a mounting plate, which is driven to rotate by a drive motor on the mounting plate; a rack is wound around the winch, which extends vertically through the mounting plate, and the rack connects the outer casing and the rack by embedding the teeth on the rack into the tooth grooves of the outer casing.
[0016] Specifically, it also includes a locking bolt that penetrates the outer casing and abuts against the upright.
[0017] Furthermore, it also includes a hydraulic strut, which is hinged to the lower surface of the slot end of the cross strut, and the other end is hinged to the lower part of the outer casing.
[0018] In particular, the mounting plate is also provided with diagonal bracing rods, and the ends of the diagonal bracing rods are provided with lighting lamps.
[0019] Compared with the prior art, this utility model has the following advantages and beneficial effects:
[0020] This invention replaces the step of driving steel piles in the prior art by setting up multiple layout trolleys in the front and rear. It uses the infrared transmitters and receivers of adjacent layout trolleys to align with each other, so as to monitor the deviation of the layout trolleys. When any layout trolley deviates due to foundation settlement or accidental contact by construction personnel, the reception of the infrared receiver of that layout trolley changes, and the alarm is triggered to prompt the construction personnel to correct the deviation. This avoids the problem of slight deviations that are difficult to observe with the naked eye, which may affect the flatness and elevation control accuracy. The layout trolleys can also be moved to make the spacing convenient and timely adjustment, avoiding the deflection of the steel wire rope. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the layout trolley structure.
[0022] The meanings of the labels in the diagram are as follows:
[0023] Vehicle body—1; Column—2; Mounting plate—3; Outer box—4; Cross brace—5; Slot—6; Wire rope—7; Mounting ring—8; Lighting lamp—9; Infrared receiver target—10; Winch—11; Rack—12; Locking bolt—13; Hydraulic strut—14; Diagonal strut—15. Detailed Implementation
[0024] 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, so as to provide a better understanding of the concept of the present utility model, the technical problem solved, the technical features constituting the technical solution and the technical effects brought about.
[0025] like Figure 1 As shown, a stakeout apparatus includes:
[0026] Vehicle body 1;
[0027] The column 2 is vertically mounted on the vehicle body 1, and a horizontal mounting plate 3 is provided on the top.
[0028] Outer box 4, with a sliding sleeve disposed on the outside of column 2;
[0029] The drive component, mounted on the mounting plate 3, is used to drive the outer casing 4 to slide up and down outside the column 2;
[0030] The cross brace 5 is connected at one end to the upper part of the outer wall of the outer casing 4, and at the other end is a groove 6 that is recessed downward for placing the wire rope 7.
[0031] Mounting ring 8 is set on cross brace 5, with an infrared transmitter on the front outer wall and an infrared receiver target 10 on the rear outer wall;
[0032] It also includes alarms;
[0033] When the infrared receiver target 10 of any staking trolley fails to receive infrared light emitted by the infrared transmitter of the adjacent trolley, the alarm of that staking trolley will sound.
[0034] In this invention, the vehicle body 1 serves as the mounting base for the entire device, providing mobility. The vehicle body 1 can be equipped with tracked wheels or solid rubber wheels with braking function, and is driven by a drive motor. The column 2 is mounted on the vehicle body 1, and a mounting plate 3 is installed on the top. The mounting plate 3 serves as the mounting position for the drive components, and the column 2 serves as the sliding track for the outer casing 4. The outer casing 4 is slidably fitted onto the outside of the column 2, and is gradually driven by the drive on the mounting plate 3 to move the outer casing 4 up and down on the column 2, thereby adjusting the height of the slot 6 of the wire rope 7 to the design elevation. Then, an infrared transmitter is installed on the front side wall of the cross brace 5 via the mounting ring 8, and an infrared receiver target 10 is installed on the rear side wall of the same mounting ring 8 to receive infrared rays from the infrared transmitters of other layout trolleys. When the position of a layout trolley at a certain point changes for some reason, its infrared receiver target cannot receive the infrared rays emitted by its adjacent layout trolley, and the alarm sounds, facilitating timely adjustment of the position of the trolley body 1 by construction personnel. Specifically, the above process can be implemented by setting a controller on each layout trolley. The controller can be a PLC controller or a microcontroller controller. Its specific functions and structure are relatively mature existing technologies, so its circuit connection relationship will not be described here. By electrically connecting the controller of each layout trolley to the alarm and the infrared receiver target 10 respectively, the infrared receiver target 10 receives the infrared signal and transmits the signal to the controller, which determines whether to control the alarm based on the input signal.
[0035] It should be noted that when the alarm of a certain layout trolley sounds, it indicates that the position of the trolley at that location has changed. The infrared light from the layout trolley in front of that trolley will then illuminate the infrared receiver target 10 of the layout trolley behind it. Therefore, only the alarm of the layout trolley that has changed direction or position will sound. The choice to install the infrared transmitter and receiver targets on the crossbar 5 has two advantages: firstly, the mounting ring 8 fitted onto the crossbar 5 serves as the mounting position, facilitating fine-tuning of the position of the mounting ring 8, i.e., the actual position of the infrared generator and receiver target 10 on the crossbar 5, to adapt to different sites; secondly, the fitting method allows for quick installation of the infrared transmitter and receiver targets.
[0036] It should be noted that the mounting ring 8 here needs to be equipped with a fixing structure to prevent the mounting ring 8 from wobbling on the cross brace 5. The fixing structure can be an elastic pad inside the mounting ring 8, or a rotating, through-bolt on the mounting ring 8. By rotating the bolt, the bolt can be tightened against the cross brace 5, thereby fixing the position of the mounting ring 8. Using multiple moving trolleys for position monitoring can effectively ensure the rapid progress of the layout process, and also facilitate the adjustment of the spacing between the layout trolleys, avoiding the problem of the wire rope 7 sagging due to excessive spacing of the reinforcing piles in existing technologies.
[0037] In a preferred embodiment, the drive assembly includes a winch 11 mounted on the mounting plate 3, which is driven to rotate by a drive motor on the mounting plate 3; a rack 12 is wound around the winch 11, which vertically penetrates the mounting plate 3 and connects the outer casing 4 and the rack 12 by embedding the teeth on the rack 12 into the tooth grooves of the outer casing 4.
[0038] In this embodiment, a specific drive assembly structure is provided, wherein the winch 11 is mounted on the mounting plate 3 and driven to rotate by a drive motor. When the drive motor drives the winch 11 to rotate, the rack 12 wound around the winch 11 is moved up or down, thereby causing the outer casing 4 connected to the rack 12 to move up or down together, achieving the purpose of adjusting the elevation of the cross brace 5. The teeth on the rack 12 are mainly used to maintain the engagement with the outer casing 4, thereby facilitating the rack 12 to drive the outer casing 4 to slide up and down; specifically, the teeth on the rack 12 are embedded in the tooth grooves on the side wall of the outer casing 4 facing the upright 2, thereby achieving the purpose of maintaining the connection. Alternatively, a connecting component such as a connecting bolt can be used, after placing the lowest tooth of the rack 12 on the top wall of the outer casing 4, the teeth of the rack 12 and the outer casing 4 are connected by the connecting bolt, thereby achieving the purpose of fastening the connection.
[0039] In addition to the technical solution disclosed in this embodiment, a vertical electric actuator can also be provided at the bottom of the outer casing 4 to replace the function of the upper mounting plate 3 and the winch 11 provided on the mounting plate. By controlling the extension and retraction of the electric actuator, the height of the outer casing 4 can be adjusted.
[0040] As a further embodiment, it also includes a locking bolt 13 that passes through the outer casing 4 by means of threads, the locking bolt 13 abutting against the column 2 after passing through the outer casing 4.
[0041] In this embodiment, a structure for maintaining the height of the outer casing 4 is provided. The locking bolt 13 is a separate locking element that penetrates the outer casing 4 and has external threads. When the locking bolt 13 is rotated until it horizontally penetrates the side wall of the outer casing 4, the end of the locking bolt 13 can press against the column 2, thereby increasing the friction between the outer casing 4 and the column 2 and preventing the outer casing 4 from sliding down. To ensure that the outer casing 4 does not slide down when pressed by the locking bolt 13, several holes can be provided on the side wall of the column 2 near the locking bolt 13 to prevent the locking bolt 13 and the outer casing 4 from sliding down.
[0042] As a preferred embodiment, it also includes a hydraulic strut 14, which is hinged to the lower surface of the slot end of the cross strut 5, and the other end is hinged to the lower part of the outer casing 4.
[0043] In this embodiment, by setting one end of the horizontal support rod 5 to the lower outer wall of the outer casing 4 as a hinge, the horizontal support rod 5 can be rotated to a vertically upward state by extending the hydraulic support rod 14 when the trolley is moving or not in use, thereby reducing the floor space occupied. When it is needed, by adjusting the length of the hydraulic support rod 14, the hydraulic support rod 14, the horizontal support rod 5 and the outer wall of the outer casing 4 form a stable triangle, ensuring that the horizontal support rod 5 can remain horizontal and avoiding the horizontal support rod 5 from swaying.
[0044] In a preferred embodiment, the mounting plate 3 is further provided with a diagonal brace 15, and the end of the diagonal brace 15 is provided with a lighting lamp 9.
[0045] In this embodiment, by setting diagonal braces on the mounting plate 3 to install lighting lamps 9, the device of this utility model can be used for construction layout at night. The lighting lamps 9 can also serve as a warning to prevent construction workers from accidentally touching the layout trolley during nighttime construction, which would cause the layout trolley to become misaligned.
[0046] The terms "connection" and "fixing" appearing in this utility model description can refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meaning of the above terms in this utility model should be understood according to the specific circumstances.
[0047] In the description of this utility model, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., are used only to indicate the orientation or positional relationship for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A stakeout apparatus, characterized in that, Includes multiple lofting trolleys arranged in a front-to-back configuration, wherein the lofting trolleys include: Vehicle body (1); The column (2) is vertically installed on the vehicle body (1) and has a horizontal mounting plate (3) on top. The outer casing (4) has a sliding sleeve located outside the column (2); The drive assembly, mounted on the mounting plate (3), is used to drive the outer casing (4) to slide up and down outside the column (2); The cross brace (5) is connected at one end to the upper part of the outer wall of the outer box (4), and at the other end is a groove (6) that is recessed downward for placing the wire rope (7). The mounting ring (8) is set on the cross brace (5), with an infrared transmitter on the front outer wall and an infrared receiver target (10) on the rear outer wall. It also includes alarms; When the infrared receiver target (10) of any staking trolley does not receive infrared light emitted by the infrared transmitter of the adjacent trolley, the alarm of the staking trolley will sound.
2. The stakeout device as described in claim 1, characterized in that, The drive assembly includes a winch (11) mounted on a mounting plate (3), which is driven to rotate by a drive motor on the mounting plate (3); a rack (12) is wound around the winch (11), which vertically passes through the mounting plate (3), and the rack (12) is connected to the outer casing (4) by embedding the teeth on the rack (12) into the tooth grooves of the outer casing (4).
3. The stakeout device as described in claim 2, characterized in that, It also includes a locking bolt (13) that penetrates the outer casing (4) and abuts against the column (2) after penetrating the outer casing (4).
4. The stakeout device as described in claim 1, characterized in that, It also includes a hydraulic strut (14), which is hinged to the lower surface of the slot end of the cross strut (5) and the other end is hinged to the lower part of the outer casing (4).
5. The stakeout apparatus as described in claim 1, characterized in that, The mounting plate (3) is also provided with a diagonal brace (15), and the end of the diagonal brace (15) is provided with a lighting lamp (9).