Measuring line tightening device for highway engineering construction and construction method

The automated measuring line tightening device, using an electric push rod and a motor-driven turntable, automatically straightens and tightens the measuring line, solving the problems of sag and cumbersome operation in long-distance measurements, and improving measurement accuracy and convenience.

CN120987148APending Publication Date: 2025-11-21NANTONG HECHEN ROAD ENG CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202511389180.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-26
Publication Date
2025-11-21

AI Technical Summary

Technical Problem

Existing highway construction surveying and setting-out equipment is prone to sag when measuring long distances, which affects the measurement results, and the operation is cumbersome and requires multiple people to cooperate.

Method used

A surveying line tightening device for highway construction is adopted, which realizes the automatic tightening of surveying lines through an electric push rod and a motor-driven turntable. By using the secondary pressing of the ground stake and the movement of the device, the surveying line is straightened and tightened, and a single person can complete the line laying operation.

Benefits of technology

It improves the accuracy of measurement data and ease of operation, reduces measurement errors, adapts to terrain changes, and allows a single person to complete complex terrain measurements.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120987148A_ABST
    Figure CN120987148A_ABST
Patent Text Reader

Abstract

The invention relates to the field of highway engineering construction, in particular to a measuring line tightening device for highway engineering construction and a construction method.The measuring line tightening device comprises a cart, a measuring box is installed on one side of the cart, and a line winding wheel is installed above the measuring box. A second electric push rod pushes a connecting plate to press downwards, a third electric push rod pushes a ground nail to press downwards for the second time, so that the ground nail is inserted into the ground, a measuring line can be connected with the ground nail in the pressing-down process, the device can automatically complete the insertion action of the ground nail in the paying-off measurement process through the structure, and the working efficiency is improved. Therefore, turning or uphill measurement encountered in the paying-off process can be completed by a single person, the measuring line can be straightened and tightened through secondary insertion of the ground nail and movement of the device, the sag phenomenon is avoided, measurement errors are avoided, and the measurement accuracy is improved. Through the structure and the mode, the terrain adaptation capability of the device, the accuracy of measured data and the operation convenience can be greatly improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of highway engineering construction, specifically to a measuring line tightening device and construction method for highway engineering construction. Background Technology

[0002] Highway engineering refers to the surveying, measurement, design, construction, maintenance, and management of highway structures. Highway construction surveying generally refers to the general term for various surveying theories, methods, and technologies used in the surveying, design, construction, and management stages of engineering construction. Traditional engineering surveying technology serves sectors such as construction, water conservancy, transportation, and mining. Technicians often need setting-out devices when conducting engineering surveys.

[0003] Patent application CN117049293B discloses a surveying and setting-out device for highway construction, comprising an engineering vehicle, a housing, and a setting-out assembly housed within the housing. The housing is mounted on the engineering vehicle and includes a knot trimming mechanism. One end of the housing has a setting-out port. The setting-out assembly includes a winding and setting-out mechanism, a measuring mechanism, a drive mechanism, a mounting base, and a side plate. The side plate is located on top of the mounting base, the drive mechanism is mounted on the outside of the side plate, and the winding and setting-out mechanism and the measuring mechanism are mounted on the inside of the side plate. Both the winding and setting-out mechanism and the measuring mechanism are driven by the drive mechanism. The advantages of this invention are: the measuring line can be reused repeatedly, and the possibility of the winding reel breaking due to knots and thread ends is avoided. Furthermore, after each reel-in, different dyes are used for spraying markings, allowing the setting-out personnel to clearly understand the length of the released line and avoiding confusion.

[0004] When using existing highway construction surveying and setting-out equipment, long stretches of line are required for measuring long distances. This causes the survey line to sag under gravity, affecting the length of the line and ultimately the measurement results. Furthermore, existing setting-out operations generally require at least two people to work together, reducing the convenience of using the equipment.

[0005] Therefore, it is necessary to invent a survey line tightening device and construction method for highway engineering construction to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a measuring line tightening device and construction method for highway engineering construction. Through two pressing actions, the first pressing connects the measuring line to the ground stake, and the second pressing completes the action of inserting the ground stake into the ground. At this time, in conjunction with the movement of the device, the measuring line is straightened and tightened. The entire process is automated, which solves the problems of cumbersome operation, poor convenience and large measurement error in the existing technology when laying out the line.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a measuring line tightening device for highway engineering construction, comprising a trolley, a measuring box installed on one side of the trolley, a winding wheel installed above the measuring box, a wire inlet groove opened on the upper part of the inner wall of the measuring box, the wire inlet groove being located on one side of the winding wheel, a placement frame installed at an angle on one side of the measuring box, the placement frame being communicating with the interior of the measuring box, and multiple sets of ground stakes being placed sequentially in the placement frame;

[0008] The switching component installed inside the measuring box includes a turntable, which is rotatably connected to the lower inner wall of the measuring box. A motor is installed at the bottom of the measuring box, and the output end of the motor is connected to the turntable shaft.

[0009] The feeding assembly located on one side of the measuring box includes a positioning cylinder. The positioning cylinder is installed on the top wall inside the measuring box and covers the through connection between the measuring box and the placement frame. An electric push rod is installed inside and above the measuring box, and the electric push rod is at the same vertical and horizontal position as the positioning cylinder.

[0010] The pressing component installed inside the measuring box includes an electric push rod two, which is installed on the upper part of the inner wall of the measuring box. A connecting plate is installed at the output end of the electric push rod two, and an electric push rod three is installed below the connecting plate.

[0011] As a preferred embodiment of the present invention, the switching component further includes four sets of slide rails, which are arranged in a ring above the turntable. Each set of slide rails is equipped with a slide rod, and a slider is slidably connected inside the slide rail. The slider and the slide rod are slidably connected. A spring is sleeved on the slide rod, and the two sides of the spring are respectively attached to the slider and the lower part of the inner wall of the slide rail.

[0012] As a preferred embodiment of the present invention, a guide cylinder is installed on one side of the slider, a through groove is provided on the inner wall of the guide cylinder, a through groove is provided below the inner wall of the measuring box, and the through groove is located below a set of guide cylinders. The electric push rod is at the same vertical and horizontal position as the through groove, and the guide cylinder and the positioning cylinder on the opposite side are at the same vertical and horizontal position.

[0013] As a preferred embodiment of the present invention, the feeding assembly further includes limiting holes, which are symmetrically opened on the inner wall of the guide cylinder. Each set of limiting holes is connected to a limiting rod through the limiting hole. A fixing plate is installed on one side of each set of limiting rods, and the fixing plates are arranged opposite to each other. A second spring is sleeved on each set of limiting rods, and the two sides of the second spring are respectively attached to the fixing plate and the inner wall of the limiting hole.

[0014] As a preferred embodiment of the present invention, each set of ground nails is provided with a docking hole, and multiple sets of wire-locking grooves are provided in a ring on the inner wall of the docking hole, and each set of wire-locking grooves is provided with a limiting groove symmetrically on the inner wall of the inner wall of the wire-locking groove.

[0015] As a preferred embodiment of the present invention, the pressing assembly further includes a wire frame, which is installed on one side below the connecting plate, and a guide frame is installed on the other side below the connecting plate, with limit cylinders symmetrically installed inside the guide frame.

[0016] As a preferred embodiment of the present invention, both sets of limiting cylinders are slidably connected to limiting blocks, and springs are attached between the inner wall of the limiting cylinder and the limiting blocks. A wire roller is installed on the inner wall of the measuring box, and the wire roller, wire frame and guide frame are at the same horizontal position.

[0017] A method for tightening survey lines used in highway construction includes a survey line tightening device as described above, and the specific processing steps are as follows:

[0018] S1: By guiding one end of the measuring wire into the measuring box through the wire inlet groove and attaching it to the wire roller, and finally passing it through the wire frame and guide frame, and fixing one end of the measuring wire to the ground nail, the ground nail is then inserted into the ground.

[0019] S2: As the trolley moves, the electric push rod two drives the connecting plate to push, which in turn causes the guide cylinder to move the ground nail downward. At the same time, the measuring line will be locked in the wire slot and limited. The electric push rod three will further push the ground nail into the ground. Meanwhile, one side of the measuring line will fall off below the connecting plate. During this process, the measuring line will gradually straighten and tighten. During this process, the electric push rod one will extend and retract, causing the ground nail to enter the guide cylinder in sequence.

[0020] S3: Finally, the electric push rod 2 drives the connecting plate to fall again after resetting, which can bring the measuring line back to the bottom of the connecting plate. At the same time, the motor drives the turntable to rotate, thereby adjusting the position of the guide cylinder to facilitate the next wiring.

[0021] Compared with the prior art, the technical effects and advantages provided by the present invention in the above technical solution are as follows:

[0022] The connecting plate is pressed down by the second electric push rod, and the third electric push rod pushes the ground stake down a second time, thus inserting the ground stake into the ground. During the pressing process, the measuring line can be connected with the ground stake. This structure allows the device to automatically insert the ground stake during the line laying and measurement process, enabling a single person to complete the measurement when encountering turns or uphill slopes. Furthermore, the secondary insertion of the ground stake, combined with the movement of the device, can keep the measuring line taut and tight, avoiding sag and measurement errors. This structure and method can greatly improve the device's terrain adaptability, the accuracy of measurement data, and the ease of operation. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the placement frame structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the planing structure of the measuring box of the present invention;

[0027] Figure 4 This is a schematic diagram of the limiting cylinder planing structure of the present invention;

[0028] Figure 5 This is a schematic diagram of the slide rail planing structure of the present invention;

[0029] Figure 6 This is a schematic diagram of the ground nail structure of the present invention;

[0030] Figure 7 For the present invention Figure 5 Enlarged structural diagram at point A in the middle;

[0031] Figure 8 For the present invention Figure 6 Enlarged structural diagram at point B.

[0032] Explanation of reference numerals in the attached figures:

[0033] 001. Trolley; 101. Measuring box; 102. Wire reel; 103. Wire inlet channel; 104. Placement frame; 105. Ground stake; 002. Switching assembly; 201. Turntable; 202. Motor; 203. Slide rail; 204. Slide rod; 205. Slider; 206. Spring 1; 207. Guide cylinder; 208. Through slot 1; 209. Through slot 2; 003. Feeding assembly; 301. Limiting hole; 302. Limiting position 303. Rod; 304. Fixing plate; 305. Spring 2; 306. Positioning cylinder; 307. Electric push rod 1; 308. Docking hole; 309. Wire clamping groove; 004. Pressing assembly; 401. Electric push rod 2; 402. Connecting plate; 403. Electric push rod 3; 404. Wire guide frame; 405. Guide frame; 406. Limiting cylinder; 407. Limiting block; 408. Spring 3; 409. Wire roller. Detailed Implementation

[0034] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0035] This invention provides, for example Figure 1-8 The above-displayed measuring line tightening device for highway construction includes a trolley 001, a measuring box 101 installed on one side of the trolley 001, a winding wheel 102 installed above the measuring box 101, a wire inlet groove 103 opened on the upper part of the inner wall of the measuring box 101, and the wire inlet groove 103 is located on one side of the winding wheel 102. A placement frame 104 is installed at an angle on one side of the measuring box 101, and the placement frame 104 is connected to the inside of the measuring box 101. Multiple sets of ground nails 105 are placed in sequence in the placement frame 104.

[0036] The winding reel 102 enables the unwinding of the measuring line, and the winding reel 102 is electrically driven, which facilitates the retrieval of the measuring line. The inlet slot 103 allows the measuring line to easily enter the measuring box 101, and the ground nails 105 in the placement frame 104 can enter the measuring box 101 sequentially under the action of gravity according to their installation angle.

[0037] The switching component 002 installed inside the measuring box 101 includes a turntable 201, which is rotatably connected to the lower inner wall of the measuring box 101. A motor 202 is installed at the bottom of the measuring box 101, and the output end of the motor 202 is connected to the turntable 201 shaft.

[0038] The motor 202 can drive the turntable 201 to rotate inside the measuring box 101.

[0039] The feeding assembly 003 located on one side of the measuring box 101 includes a positioning cylinder 305. The positioning cylinder 305 is installed on the inner top wall of the measuring box 101 and covers the through connection between the measuring box 101 and the placement frame 104. An electric push rod 306 is installed inside and above the measuring box 101, and the electric push rod 306 and the positioning cylinder 305 are at the same vertical and horizontal position.

[0040] The positioning cylinder 305 can limit the ground nail 105 entering the measuring box 101, and the extension and retraction of the electric push rod 306 can restrict the ground nail 105 from entering the measuring box 101. Furthermore, the retraction and re-drive can effectively push the ground nail 105 downward along the positioning cylinder 305.

[0041] The pressing component 004 installed inside the measuring box 101 includes an electric push rod 2 401, which is installed on the upper part of the inner wall of the measuring box 101. A connecting plate 402 is installed at the output end of the electric push rod 2 401, and an electric push rod 3 403 is installed below the connecting plate 402.

[0042] The electric push rod 401 can drive the connecting plate 402 to move downward, thereby performing a pushing action, and the electric push rod 403 can further extend the pushing distance after the connecting plate 402 moves downward.

[0043] Furthermore, in the above structure, the switching component 002 also includes four sets of slide rails 203. The four sets of slide rails 203 are arranged in a ring above the turntable 201. Each set of slide rails 203 is equipped with a slide rod 204. A slider 205 is slidably connected inside the slide rail 203, and the slider 205 is slidably connected to the slide rod 204. A spring 206 is sleeved on the slide rod 204, and the two sides of the spring 206 are respectively attached to the slider 205 and the lower part of the inner wall of the slide rail 203.

[0044] The slide rail 203 and the slide bar 204 allow the slider 205 to slide stably within the slide rail 203, and the spring 206 keeps the slider 205 in an upward-pressed state within it.

[0045] Furthermore, in the above structure, a guide cylinder 207 is installed on one side of the slider 205. A through groove 208 is provided on the inner wall of the guide cylinder 207. A through groove 209 is provided below the inner wall of the measuring box 101. The through groove 209 is located below a set of guide cylinders 207. The electric push rod 403 and the through groove 209 are at the same vertical and horizontal position. The guide cylinder 207 on the opposite side and the positioning cylinder 305 are at the same vertical and horizontal position.

[0046] By pressing down the connecting plate 402, the guide cylinder 207 can move downward along one side of the slide rail 203. After the guide cylinder 207 moves into place, it can be extended inward by the electric push rod 303, thereby pushing the ground nail 105 downward and finally inserting it into the ground. Under the action of the electric push rod 306, the guide cylinder 207 on the opposite side can drive the ground nail 105 to move downward along the positioning cylinder 305 and finally lock into the guide cylinder 207, thus completing the automatic feeding of the ground nail 105.

[0047] Furthermore, in the above structure, the feeding assembly 003 also includes limiting holes 301. The limiting holes 301 are symmetrically opened on the inner wall of the guide cylinder 207. Each set of limiting holes 301 is connected to a limiting rod 302. A fixing plate 303 is installed on one side of each set of limiting rods 302, and the fixing plates 303 are arranged opposite each other. A second spring 304 is sleeved on each set of limiting rods 302, and the two sides of the second spring 304 are respectively attached to the fixing plate 303 and the inner wall of the limiting hole 301.

[0048] By the compression of the second spring 304, the limiting rod 302 can drive the two sets of opposing fixed plates 303 to move closer to each other. At this time, the ground nail 105 will produce a squeezing effect as it passes through the connected interior, so that the ground nail 105 can be fixed in the guide cylinder 207.

[0049] Furthermore, in the above structure, each set of ground nails 105 is provided with a docking hole 307, and multiple sets of wire-locking grooves 308 are provided in a ring on the inner wall of the docking hole 307, and each set of wire-locking grooves 308 is provided with a limiting groove 309 symmetrically on the inner wall of the inner wall of the wire-locking groove 308.

[0050] The measuring line can be connected to the wire clamping groove 308 through the limiting groove 309, thereby completing the connection between the ground nail 105 and the measuring line.

[0051] Furthermore, in the above structure, the pressing component 004 also includes a wire frame 404, which is installed on one side below the connecting plate 402. A guide frame 405 is installed on the other side below the connecting plate 402, and limit cylinders 406 are symmetrically installed inside the guide frame 405.

[0052] Furthermore, in the above structure, both sets of limiting cylinders 406 are slidably connected to limiting blocks 407, and springs 408 are attached between the inner wall of the limiting cylinder 406 and the limiting blocks 407. A wire roller 409 is installed on the inner wall of the measuring box 101, and the wire roller 409, the wire frame 404 and the guide frame 405 are at the same horizontal position.

[0053] The measuring wire can be introduced through the wire roller 409 and the wire holder 404. The two sets of limiting blocks 407 can be engaged with each other under the action of the spring 408, thus cooperating with the wire holder 404 to make the measuring wire parallel to the connecting plate 402 below it. When the connecting plate 402 moves downward, the measuring wire can be inserted into the wire slot 308. As the electric push rod 403 pushes the ground nail 105 downward, the measuring wire passes between the two sets of limiting blocks 407 under the action of downward pressure. At the same time, as the trolley 001 continues to move to complete the wire release, the connecting plate 402 presses down again, which allows the measuring wire to pass back between the two sets of limiting blocks 407 and return to the guide frame 405 for the next wiring. During the wiring process, the secondary push of the electric push rod 403, in conjunction with the movement of the trolley 001, can keep the measuring wire straight and prevent sag.

[0054] A method for tightening survey lines used in highway construction includes the survey line tightening device described above, and the specific processing steps are as follows:

[0055] S1: By guiding one end of the measuring wire into the measuring box 101 through the wire inlet groove 103 and attaching it to the wire roller 409, and finally passing it through the wire frame 404 and the guide frame 405, and fixing one end of the measuring wire to the ground nail 105, the ground nail 105 is then inserted into the ground.

[0056] S2: As the trolley 001 moves, the electric push rod 401 drives the connecting plate 402 to push, thereby causing the guide cylinder 207 to move the ground nail 105 downward. At the same time, the measuring line will be locked in the wire slot 308 and the electric push rod 403 will further push the ground nail 105 into the ground. Meanwhile, one side of the measuring line will fall off below the connecting plate 402, and the measuring line will gradually straighten and tighten during this process. During this process, the electric push rod 306 will extend and retract, causing the ground nail 105 to enter the insertion guide cylinder 207 in sequence.

[0057] S3: Finally, the electric push rod 401 drives the connecting plate 402 to fall again after resetting, which can make the measuring line return to the bottom of the connecting plate 402. At the same time, the motor 202 drives the turntable 201 to rotate, thereby adjusting the position of the guide cylinder 207 to facilitate the next wiring.

[0058] like Figure 1-8As shown, one end of the measuring wire enters the measuring box 101 through the wire inlet groove 103, and after passing under the wire roller 409 and through the wire frame 404 and guide frame 405, the measuring wire is finally tied to the ground nail 105. After the ground nail 105 is inserted into the ground, the trolley 001 is pushed to move. At this time, the electric push rod 401 will drive the connecting plate 402 to move, thereby causing the connecting plate 402 to drive the guide cylinder 207 to move downward. As the guide cylinder 207 moves downward, the measuring wire located below the connecting plate 402 will pass through the through groove 208 and be attached to the guide cylinder 207. Above the ground nail 105 inside the cylinder 207, and after entering the wire clamping groove 308, it will be limited and connected to the ground nail 105 by the limiting groove 309. At this time, the electric push rod three 403 pushes the ground nail 105 to move and insert it directly into the ground along the through groove two 209. The measuring wire will pass through the two sets of limiting blocks 407 under the action of downward pressure. After the electric push rod two 401 drives the connecting plate 402 to reset, the continuous movement of the trolley 001 will complete the wiring. When the wiring reaches a certain position, the electric push rod two 401 will drive the connecting plate 402 to move downward again. At this time, the empty The guide cylinder 207 limits the measuring line, causing it to pass through the two sets of limit blocks 407 again and enter the guide frame 405. During this process, the electric push rod 306 retracts, causing the ground nail 105 to enter the positioning cylinder 305 inside the measuring box 101 along the placement frame 104, and finally fall above the guide cylinder 207. At the same time, the electric push rod 306 extends and pushes the ground nail 105 into the guide cylinder 207. Under the action of the spring 304, the fixing plate 303 is pushed to fix the ground nail 105 into the guide cylinder 207. And under the action of the motor 202, the turntable 2... 01 rotates, causing the guide cylinder 207 containing the ground stake 105 to move back below the electric push rod 403 for subsequent wiring fixation. This structure enables the ground stake 105 to be fixed in position during the wiring process, and the entire process is automated. It can also be used for turning or going uphill during the wiring process, and can be completed by a single person. Furthermore, during the wiring measurement process, the measuring line can be kept taut and tightened by a secondary pressing action in conjunction with the movement of the trolley 001, thereby avoiding sag and preventing large errors in the measurement distance that would affect the measurement results.

[0059] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A surveying line tightening device for highway construction, comprising a trolley (001), characterized in that: A measuring box (101) is installed on one side of the trolley (001). A winding reel (102) is installed above the measuring box (101). A wire inlet groove (103) is opened on the upper part of the inner wall of the measuring box (101), and the wire inlet groove (103) is located on one side of the winding reel (102). A placement frame (104) is installed at an angle on one side of the measuring box (101), and the placement frame (104) is connected to the inside of the measuring box (101). Multiple sets of ground nails (105) are placed in the placement frame (104) in sequence. The switching component (002) installed in the measuring box (101) includes a turntable (201), which is rotatably connected to the lower inner wall of the measuring box (101). A motor (202) is installed at the bottom of the measuring box (101), and the output end of the motor (202) is connected to the turntable (201) shaft. The feeding assembly (003) located on one side of the measuring box (101) includes a positioning cylinder (305). The positioning cylinder (305) is installed on the inner top wall of the measuring box (101), and the positioning cylinder (305) covers the through connection between the measuring box (101) and the placement frame (104). An electric push rod (306) is installed inside and above the measuring box (101), and the electric push rod (306) and the positioning cylinder (305) are at the same vertical and horizontal position. The pressing assembly (004) installed in the measuring box (101) includes an electric push rod two (401), which is installed above the inner wall of the measuring box (101). A connecting plate (402) is installed at the output end of the electric push rod two (401), and an electric push rod three (403) is installed below the connecting plate (402).

2. The surveying line tightening device for highway construction according to claim 1, characterized in that: The switching component (002) also includes four sets of slide rails (203). The four sets of slide rails (203) are arranged in a ring above the turntable (201). Each set of slide rails (203) is equipped with a slide rod (204). A slider (205) is slidably connected inside the slide rail (203). The slider (205) is slidably connected to the slide rod (204). A spring (206) is sleeved on the slide rod (204). The two sides of the spring (206) are respectively attached to the slider (205) and the lower part of the inner wall of the slide rail (203).

3. A surveying line tightening device for highway construction according to claim 2, characterized in that: A guide cylinder (207) is installed on one side of the slider (205). A through groove (208) is provided on the inner wall of the guide cylinder (207). A through groove (209) is provided below the inner wall of the measuring box (101). The through groove (209) is located below a set of guide cylinders (207). The electric push rod (403) and the through groove (209) are in the same vertical horizontal position. The guide cylinder (207) on the opposite side and the positioning cylinder (305) are in the same vertical horizontal position.

4. A surveying line tightening device for highway construction according to claim 1, characterized in that: The feeding assembly (003) also includes a limiting hole (301), which is symmetrically opened on the inner wall of the guide cylinder (207). Each group of limiting holes (301) is connected to a limiting rod (302). A fixing plate (303) is installed on one side of each group of limiting rods (302), and each group of fixing plates (303) is arranged opposite to each other. A spring (304) is sleeved on each group of limiting rods (302), and the two sides of the spring (304) are respectively attached to the fixing plate (303) and the inner wall of the limiting hole (301).

5. A surveying line tightening device for highway construction according to claim 1, characterized in that: Each set of ground nails (105) is provided with a docking hole (307). Multiple sets of wire-locking grooves (308) are provided in a ring on the inner wall of the docking hole (307). Each set of wire-locking grooves (308) is provided with a limiting groove (309) symmetrically on the inner wall of the inner wall of the wire-locking grooves (308).

6. A surveying line tightening device for highway construction according to claim 1, characterized in that: The pressing assembly (004) also includes a wire frame (404), which is installed on one side below the connecting plate (402). A guide frame (405) is installed on the other side below the connecting plate (402), and limit cylinders (406) are symmetrically installed inside the guide frame (405).

7. A surveying line tightening device for highway construction according to claim 6, characterized in that: Both sets of limiting cylinders (406) are slidably connected to limiting blocks (407). A spring (408) is attached between the inner wall of the limiting cylinder (406) and the limiting block (407). A wire roller (409) is installed on the inner wall of the measuring box (101), and the wire roller (409), the wire frame (404), and the guide frame (405) are at the same horizontal position.

8. A method for tightening survey lines used in highway construction, comprising a survey line tightening device as described in any one of claims 1-8, characterized in that: The specific processing steps are as follows: S1: By guiding one end of the measuring wire into the measuring box (101) through the wire inlet groove (103) and attaching it to the wire roller (409), and finally passing it through the wire frame (404) and guide frame (405), and fixing one end of the measuring wire to the ground nail (105), the ground nail (105) is then inserted into the ground. S2: By moving the trolley (001), the electric push rod two (401) drives the connecting plate (402) to push, thereby causing the guide cylinder (207) to move the ground nail (105) downward. At the same time, the measuring line will be stuck in the wire slot (308) and limited. The electric push rod three (403) will further push the ground nail (105) into the ground. At the same time, one side of the measuring line will fall off below the connecting plate (402). The measuring line will gradually straighten and tighten during this process. During this process, the electric push rod one (306) will extend and retract, causing the ground nail (105) to enter the insertion guide cylinder (207) in sequence. S3: Finally, the electric push rod 2 (401) drives the connecting plate (402) to fall again after reset, which can make the measuring line return to the bottom of the connecting plate (402). At the same time, the motor (202) drives the turntable (201) to rotate, thereby adjusting the position of the guide cylinder (207).

Citation Information

Patent Citations

  • A surveying and setting-out device for highway construction

    CN117049293B