Pipe pushing axis line measuring device

Abstract

This utility model discloses a pipe jacking axis measuring device, belonging to the field of municipal engineering construction surveying technology, aiming to solve the problems of poor adaptability, low adjustment accuracy, and complex operation of existing devices. The device includes a laser collimator main body, an adjusting frame, and a telescopic support rod. A limiting hole is provided on the side of the laser collimator main body, and the adjusting frame is assembled into the limiting hole. Three internal threaded sleeves are fixed on its outer side, and the telescopic support rod is detachably assembled into the internal threaded sleeves. The adjusting frame includes an outer frame, an inner frame, a rubber ring, a threaded knob, a limiting stake, a threaded stake, and a threaded short sleeve, enabling precise adjustment and locking of the laser collimator main body's direction and tilt angle. The telescopic support rod includes a hexagonal screw head, an outer long tube, an inner long tube, a hexagonal bolt, a limiting screw, and other components, supporting dual length adjustment of "coarse adjustment + fine adjustment," adapting to pipe jacking of different diameters. In scenarios with ultra-large diameter pipe jacking, a single support rod can be detached and bolted to form a stable triangular structure.

Description

Technical Field

[0001] This utility model relates to the field of municipal engineering construction surveying technology, and in particular to a pipe jacking axis measuring device. Background Technology

[0002] During pipe jacking construction, accurate measurement of the pipe jacking axis is a key step in ensuring construction quality, directly affecting the straightness of the pipeline laying and the connection accuracy of subsequent projects.

[0003] Existing pipe jacking axis measuring devices often suffer from poor adaptability, low adjustment accuracy, and complex operation. Specifically:

[0004] Adaptability limitations: The support structure of traditional devices is mostly fixed in length or has a single adjustment method, which makes it difficult to flexibly adapt to jacking pipes of different diameters. When facing ultra-large diameter jacking pipes, the measurement reference often shifts due to unstable support.

[0005] Insufficient adjustment accuracy: The adjustment mechanism for direction and tilt angle lacks a reliable locking mechanism. After adjustment, it is easily affected by construction vibration and may shift, making it impossible to maintain the accuracy of the laser reference line for a long time, thus affecting the accuracy of the measurement results.

[0006] Low operational efficiency: The installation and adjustment of the device require a variety of specialized tools, and some steps require multiple people to work together, which not only increases the difficulty of operation for construction personnel, but also prolongs the installation and commissioning time and reduces the overall construction efficiency.

[0007] Therefore, a pipe jacking axis measuring device is proposed. Utility Model Content

[0008] The purpose of this invention is to solve the above problems by proposing a jacking pipe axis measuring device that is widely adaptable, precisely adjustable, and easy to operate.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a pipe jacking axis measuring device, including a laser collimator body, a limiting hole is opened in the middle of the side of the laser collimator body, an adjusting frame is assembled in the limiting hole, three internal threaded sleeves are evenly distributed and fixed on the outer side of the adjusting frame, and a telescopic support rod is detachably assembled in each of the internal threaded sleeves.

[0010] Preferably, the adjusting frame includes an outer frame, an inner frame rotatably fitted into the outer frame, a rubber ring bonded and fixed to the outside of the inner frame, a threaded knob rotatably installed in the threaded through hole of the outer frame, a limiting post integrally formed with the inner side of the inner frame, a threaded post integrally formed with the inner side of the inner frame and symmetrically with the limiting post, and a threaded short sleeve sleeved on the threaded post.

[0011] Preferably, the ends of the limiting stake and the threaded stake away from the inner circular frame are both inserted into the limiting hole; the outer sides of the threaded knob and the threaded short sleeve are provided with anti-slip grooves. Tightening the threaded knob to press against the outer side of the rubber ring can lock the inner circular frame to prevent it from rotating, and tightening the threaded short sleeve to press against the side of the laser collimator body can lock the tilt angle of the laser collimator body.

[0012] Preferably, the telescopic support rod includes a hexagonal screw head that can be rotatably installed and removed from the internal threaded sleeve, an outer tube that can be rotatably fitted onto the lower end of the hexagonal screw head, an inner tube that can slide inside the outer tube, a hexagonal bolt that passes through the corresponding through holes of the outer tube and the inner tube, a limiting screw that can be rotatably installed into the threaded through hole at the lower end of the inner tube, a hexagonal clamp that is integrally formed with the lower end of the limiting screw, a movable hinge that can be rotatably fitted onto the lower end of the hexagonal clamp, a rounded base plate welded to the lower end of the movable hinge, and a rubber pad that is adhesively fixed to the bottom surface of the rounded base plate.

[0013] Preferably, the outer tube has multiple through holes evenly distributed on its outer side. The hexagonal bolt is used to lock the position of the inner tube inside the outer tube to adjust the length of the telescopic support rod. The limiting screw can be rotated along the threaded through hole at the lower end of the inner tube to adjust its extension length, thereby achieving fine adjustment of the length of the telescopic support rod.

[0014] Preferably, the top surface of the rounded corner base plate has bolt pre-reserved through holes near both ends, and the bottom surface of the rubber pad has multiple transverse grooves evenly distributed.

[0015] The beneficial effects of this utility model are as follows: Through the setting of this pipe jacking axis measuring device, the core advantage of this pipe jacking axis measuring device is that it has strong installation adaptability, precise angle adjustment and convenient and efficient operation, and can flexibly meet the needs of different construction scenarios.

[0016] Wide adaptability, compatible with multi-diameter jacking pipes: The telescopic support rod supports dual length adjustment of "coarse adjustment + fine adjustment". By sliding the inner tube and rotating the limiting screw, it can quickly adapt to jacking pipes of different diameters. When dealing with ultra-large diameter jacking pipes, a single support rod can be removed and fixed with bolts. The two support rods and the pipe wall form a stable triangular structure to ensure the stability of the device.

[0017] Precise adjustment and stable measurement benchmark: Direction adjustment is achieved by rotating the inner circular frame within the outer circular frame. Combined with the locking mechanism of the rubber ring and threaded knob, the direction is precisely fixed, preventing deviation. The tilt angle is adjusted using the limit stake and threaded stake as the axis. Tightening the threaded short sleeve firmly locks the angle, ensuring the accuracy of the laser reference line.

[0018] Simple to operate, reducing construction difficulty: All adjustment steps can be completed simply by removing and installing hex bolts, turning knobs or screws, without complicated tools, and can be operated by a single person. The movable hinge, combined with the rounded base plate with rubber pads, can adapt to the angle of the inner wall of the jacking pipe, quickly achieving a tight fit and shortening the installation and fixing time. Attached Figure Description

[0019] Appendix Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Appendix Figure 2 This is the utility model Figure 1 Enlarged diagram of part A in the middle;

[0021] Appendix Figure 3 This is the utility model Figure 1 Enlarged diagram of section B;

[0022] Appendix Figure 4 This is the utility model Figure 1 Enlarged diagram of section C;

[0023] Appendix Figure 5 This is a schematic diagram of the main body, adjusting frame and internal threaded sleeve of the laser collimator of this utility model;

[0024] Appendix Figure 6 This is a schematic diagram of the main structure of the laser collimator of this utility model;

[0025] Appendix Figure 7 This is an exploded view of the adjustment circular frame of this utility model;

[0026] Appendix Figure 8 This is an exploded view of the internal threaded sleeve and telescopic support rod of this utility model.

[0027] Legend: 1. Main body of laser collimator; 2. Limiting hole; 3. Adjusting frame; 301. Outer frame; 302. Inner frame; 303. Rubber ring; 304. Threaded knob; 305. Limiting post; 306. Threaded post; 307. Threaded short sleeve; 4. Internal threaded sleeve; 5. Telescopic support rod; 501. Hexagonal screw head; 502. Outer long tube; 503. Inner long tube; 504. Hexagonal bolt; 505. Limiting screw; 506. Hexagonal chuck; 507. Movable hinge; 508. Rounded corner base plate; 509. Rubber pad. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only a part of the present utility model, and not all of them. 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.

[0029] See Figure 1-8 As shown, the laser collimator body 1 is the core component for measuring the jacking pipe axis. It is used to emit a laser beam to provide a baseline. Its rear interface can be connected to an external control and display device, and control buttons are provided on the side to provide an operational basis for measurement.

[0030] The limiting hole 2 is opened in the middle of the side of the laser collimator body 1, and is used to assemble the adjustment frame 3, and to allow the limiting stake 305 and the threaded stake 306 to be inserted at the end away from the inner frame 302.

[0031] The adjustment frame 3 is used to connect the laser collimator body 1 and the telescopic support rod 5, and to adjust the direction and tilt angle of the laser collimator body 1. Its various sub-components work together.

[0032] The internal threaded sleeves 4 are evenly distributed and fixed on the outside of the adjusting round frame 3, and are used for the detachable assembly of the telescopic support rod 5 with the hexagonal screw head 501, so as to realize the connection between the telescopic support rod 5 and the adjusting round frame 3.

[0033] The telescopic support rod 5 is used to fix the device inside the jacking pipe. By adjusting its length, it can adapt to jacking pipes of different diameters. Its various sub-components work together to achieve the functions of support, telescopic movement and fixation.

[0034] See Figure 1-7 As shown, the outer circular frame 301 serves as the external frame for adjusting the circular frame 3, providing space for the inner circular frame 302 to be rotated and installed, while the threaded through hole on it allows the threaded knob 304 to be installed.

[0035] The inner circular frame 302 is rotatably fitted into the outer circular frame 301. The inner side is integrally formed with a limit post 305 and a threaded post 306. The laser collimator body 1 is adjusted in direction by rotating itself.

[0036] The rubber ring 303 is bonded and fixed to the outside of the inner circular frame 302. When the threaded knob 304 is pressed against its outside, it can increase the friction to lock the inner circular frame 302 and prevent it from rotating.

[0037] The threaded knob 304 can be rotatably installed in the threaded through hole of the outer circular frame 301. When the outer end is pressed against the outer side of the rubber ring 303, it can lock the inner circular frame 302. The anti-slip groove on the outer side facilitates the turning operation.

[0038] The limiting post 305 is integrally formed with the inner side of the inner circular frame 302 and is symmetrically distributed with the threaded post 306. One end is inserted into the limiting hole 2 to provide an axis for adjusting the tilt angle of the laser collimator body 1.

[0039] The threaded post 306 is integrally formed with the inner side of the inner circular frame 302 and is fitted with a threaded short sleeve 307. One end of the sleeve is inserted into the limiting hole 2 and together with the limiting post 305, it serves as the axis for adjusting the tilt angle of the main body 1 of the laser collimator.

[0040] The threaded short sleeve 307 is fitted onto the threaded post 306. It has an anti-slip groove on the outside. When it is screwed to fit tightly against the side of the laser collimator body 1, its tilt angle can be locked. When it is loosened, it can be adjusted.

[0041] See Figure 1-8 As shown, the hexagonal screw head 501 can be rotatably installed and removed from the inner threaded sleeve 4, and the lower end clamp allows the outer long tube 502 to be rotatably fitted, realizing the connection between the telescopic support rod 5 and the inner threaded sleeve 4 and the rotational installation of the outer long tube 502.

[0042] The outer tube 502 is rotatably fitted onto the lower end of the hexagonal screw head 501. The inner tube 503 slides inside, and multiple through holes are opened on the outer side for the hexagonal bolts 504 to pass through, providing guidance and locking basis for the extension and retraction of the inner tube 503.

[0043] The inner tube 503 can slide inside the outer tube 502. The length of the telescopic support rod 5 can be coarsely adjusted by relative sliding with the outer tube 502. The corresponding through hole allows the hexagonal bolt 504 to pass through to lock the position, and the threaded through hole at the lower end allows the limit screw 505 to be installed.

[0044] Hex bolts 504 pass through the corresponding through holes of the outer long tube 502 and the inner long tube 503 to lock the position of the inner long tube 503 inside the outer long tube 502, thereby fixing the length of the telescopic support rod 5.

[0045] The limiting screw 505 can be rotatably installed in the threaded through hole at the lower end of the inner tube 503. By rotating it, the extension length can be adjusted to achieve fine adjustment of the length of the telescopic support rod 5.

[0046] The hexagonal chuck 506 is integrally formed with the lower end of the limiting screw 505, making it easy to use a wrench to turn the limiting screw 505. The lower chuck is used for the movable hinge 507 to rotate and fit.

[0047] The movable hinge 507 is rotatably fitted onto the lower end of the hexagonal clip 506, and the lower end is welded with a rounded base plate 508, so that the rounded base plate 508 can better adapt to the angle of the inner wall of the jacking pipe and ensure a tight fit.

[0048] The rounded base plate 508 is welded to the lower end of the movable hinge 507. The bolt pre-drilled through holes on the top surface near both ends can be fixed to the inner wall of the jacking pipe when needed. The bottom surface is bonded with rubber pads 509 to increase the contact area and friction with the inner wall of the jacking pipe and stabilize the support device.

[0049] Rubber pad 509 is bonded and fixed to the bottom surface of rounded corner base plate 508. Multiple horizontal grooves evenly distributed on the bottom surface can enhance friction, prevent the device from sliding inside the top tube, and ensure stable fixation.

[0050] In this embodiment, the pipe jacking axis measuring device includes a laser collimator body 1. A limiting hole 2 is opened in the middle of the side of the laser collimator body 1. An adjustment frame 3 is installed in the limiting hole 2. Three internal threaded sleeves 4 are evenly distributed and fixed on the outside of the adjustment frame 3. A telescopic support rod 5 is detachably installed in each of the internal threaded sleeves 4.

[0051] The adjusting circular frame 3 includes an outer circular frame 301, an inner circular frame 302 rotatably fitted into the outer circular frame 301, a rubber ring 303 bonded and fixed to the outside of the inner circular frame 302, a threaded knob 304 rotatably installed in the threaded through hole of the outer circular frame 301, a limiting post 305 integrally formed with the inner side of the inner circular frame 302, a threaded post 306 integrally formed with the inner side of the inner circular frame 302 and symmetrically formed with the limiting post 305, and a threaded short sleeve 307 sleeved on the threaded post 306.

[0052] The ends of the limiting stake 305 and the threaded stake 306 away from the inner circular frame 302 are both inserted into the limiting hole 2; the outer sides of the threaded knob 304 and the threaded short sleeve 307 are provided with anti-slip grooves. Turning the threaded knob 304 to press against the outer side of the rubber ring 303 can lock the inner circular frame 302 to prevent it from rotating. Turning the threaded short sleeve 307 to press against the side of the laser collimator body 1 can lock the tilt angle of the laser collimator body 1.

[0053] The telescopic support rod 5 includes a hexagonal screw head 501 that can be rotatably installed and removed from the inner threaded sleeve 4, an outer tube 502 that can be rotatably fitted onto the lower end of the hexagonal screw head 501, an inner tube 503 that can slide within the outer tube 502, a hexagonal bolt 504 that passes through the corresponding through holes of the outer tube 502 and the inner tube 503, a limiting screw 505 that can be rotatably installed into the threaded through hole at the lower end of the inner tube 503, a hexagonal clamp 506 integrally formed with the lower end of the limiting screw 505, a movable hinge 507 that can be rotatably fitted onto the lower end of the clamp of the hexagonal clamp 506, a rounded base plate 508 welded to the lower end of the movable hinge 507, and a rubber pad 509 that is bonded and fixed to the bottom surface of the rounded base plate 508.

[0054] Multiple through holes are evenly distributed on the outer side of the outer tube 502. The hexagonal bolt 504 is used to lock the position of the inner tube 503 inside the outer tube 502 to adjust the length of the telescopic support rod 5. The limiting screw 505 can rotate along the threaded through hole at the lower end of the inner tube 503 to adjust its extension length, thereby achieving fine adjustment of the length of the telescopic support rod 5.

[0055] The rounded bottom plate 508 has bolt pre-drilled through holes on its top surface near both ends, and the rubber pad 509 has multiple transverse grooves evenly distributed on its bottom surface.

[0056] The operation procedure of this utility model is as follows: When connecting the device, connect the interface at the rear end of the laser collimator body 1 to the external control and display device, press the control button on the side of the laser collimator body 1, and start the device.

[0057] When adjusting the length of the telescopic support rod, according to the diameter of the jacking pipe, remove the hex bolt 504, pull out the inner long tube 503 inside the outer long tube 502, and after the length is appropriate, reinstall the hex bolt 504 in the corresponding through holes of the outer long tube 502 and the inner long tube 503, and lock the position of the inner long tube 503.

[0058] When fixing the device, use a wrench to turn the hexagonal jack 506 downwards, causing the limit screw 505 to rotate and extend until the rounded base plate 508 is firmly pressed against the inner wall of the jacking pipe through the rubber pad 509. The movable hinge 507 adapts to the angle of the inner wall of the jacking pipe to ensure that the rounded base plate 508 fits tightly.

[0059] When dealing with large-diameter jacking pipes, if the diameter of the jacking pipe exceeds the extension length of the telescopic support rod 5, turn down the hexagonal screw head 501 inside the internal threaded sleeve 4 to remove one telescopic support rod 5. Fix it to the inner wall of the jacking pipe through the bolt pre-drilled hole on the top surface of the rounded base plate 508, so that the two telescopic support rods 5 and the inner wall of the jacking pipe form a stable triangular structure.

[0060] When adjusting the direction of the laser collimator, loosen the threaded knob 304 so that its front end is disengaged from the surface of the rubber ring 303. Rotate the inner circular frame 302 inside the outer circular frame 301 to drive the laser collimator body 1 to adjust its direction. After the adjustment is completed, tighten the threaded knob 304 so that it presses against the outside of the rubber ring 303 to lock the inner circular frame 302.

[0061] When adjusting the tilt angle of the laser collimator, loosen the threaded short sleeve 307 on the threaded post 306 so that it is disengaged from the side of the laser collimator body 1. Adjust the tilt angle of the laser collimator body 1 with the limit post 305 and the threaded post 306 as the axis. After the adjustment is completed, tighten the threaded short sleeve 307 so that it is tightly attached to the side of the laser collimator body 1 to complete the locking.

[0062] When storing the device, turn the hexagonal screw head 501 downwards to disengage it from the inner threaded sleeve 4, remove the three telescopic support rods 5, and then store the device.

[0063] Although embodiments of the present invention have been shown and described, those skilled in the art should understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipe jacking axis measuring device, characterized in that: The device includes a laser collimator body (1), a limiting hole (2) is opened in the middle of the side of the laser collimator body (1), an adjustment frame (3) is installed in the limiting hole (2), and three internal thread sleeves (4) are evenly distributed and fixed on the outside of the adjustment frame (3). Each internal thread sleeve (4) is detachably equipped with a telescopic support rod (5).

2. The pipe jacking axis measuring device according to claim 1, characterized in that: The adjustment frame (3) includes an outer frame (301), an inner frame (302) rotatably fitted into the outer frame (301), a rubber ring (303) bonded and fixed to the outside of the inner frame (302), a threaded knob (304) rotatably installed in the threaded through hole of the outer frame (301), a limiting post (305) integrally formed with the inner side of the inner frame (302), a threaded post (306) integrally formed with the inner side of the inner frame (302) and symmetrically formed with the limiting post (305), and a threaded short sleeve (307) sleeved on the threaded post (306).

3. The pipe jacking axis measuring device according to claim 2, characterized in that: The ends of the limiting stake (305) and the threaded stake (306) away from the inner circular frame (302) are both inserted into the limiting hole (2); the outer sides of the threaded knob (304) and the threaded short sleeve (307) are provided with anti-slip grooves. Twisting the threaded knob (304) to press it against the outer side of the rubber ring (303) can lock the inner circular frame (302) to prevent it from rotating. Twisting the threaded short sleeve (307) to press it against the side of the laser collimator body (1) can lock the tilt angle of the laser collimator body (1).

4. The pipe jacking axis measuring device according to claim 3, characterized in that: The telescopic support rod (5) includes a hexagonal screw head (501) that can be rotatably installed and removed from the inner threaded sleeve (4), an outer tube (502) that can be rotatably fitted onto the lower end of the hexagonal screw head (501), an inner tube (503) that can slide inside the outer tube (502), a hexagonal bolt (504) that passes through the corresponding through holes of the outer tube (502) and the inner tube (503), a limiting screw (505) that can be rotatably installed into the threaded through hole at the lower end of the inner tube (503), a hexagonal clamp (506) integrally formed with the lower end of the limiting screw (505), a movable hinge (507) that can be rotatably fitted onto the lower end of the clamp of the hexagonal clamp (506), a rounded base plate (508) welded to the lower end of the movable hinge (507), and a rubber pad (509) that is bonded and fixed to the bottom surface of the rounded base plate (508).

5. The pipe jacking axis measuring device according to claim 4, characterized in that: Multiple through holes are evenly distributed on the outer side of the outer tube (502). The hexagonal bolt (504) is used to lock the position of the inner tube (503) inside the outer tube (502) to adjust the length of the telescopic support rod (5). The limiting screw (505) can be rotated along the threaded through hole at the lower end of the inner tube (503) to adjust its extension length, thereby achieving fine adjustment of the length of the telescopic support rod (5).

6. The pipe jacking axis measuring device according to claim 5, characterized in that: The rounded bottom plate (508) has bolt pre-reserved through holes on the top surface near both ends, and the rubber pad (509) has multiple transverse grooves evenly distributed on the bottom surface.

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