Pipeline guiding and conveying device for municipal construction

Abstract

The invention belongs to the technical field of municipal construction equipment, and particularly relates to a pipeline guiding and conveying device for municipal construction, which comprises a suspension bracket, a pipeline pushing oil cylinder and a hydraulic driving unit for providing power for the pipeline pushing oil cylinder, the output end of the height adjusting mechanism is connected with a protection plate used for being attached to the inner wall of the working well, a cushion block is slidably arranged on the side, away from the well wall, of the protection plate, a lifting oil cylinder is arranged between the cushion block and the suspension support, and the pipeline pushing oil cylinder is arranged on the side, away from the protection plate, of the cushion block. The extending end of the pipeline pushing oil cylinder is connected with a guide pushing sleeve used for bearing a short pipe. Through cooperation of the structures, the problems of collision and clamping stagnation of the pipeline and the well wall are solved, the device is suitable for inspection wells of different sizes, meanwhile, personnel do not need to go down to work, and safety risks such as crushing injury and extrusion are avoided.

Description

Technical Field

[0001] This invention belongs to the field of municipal construction equipment technology, specifically a pipeline guiding and conveying device for municipal construction. Background Technology

[0002] In municipal engineering projects such as pipeline network renovation and new pipeline access, trenchless short pipe replacement construction technology is now widely used to reduce ground excavation and avoid traffic congestion and environmental impact. This technology does not require large-scale road surface demolition. Existing manholes are used as the working space. During construction, workers need to go down into the manhole to install and debug the hydraulic jacking equipment. Then, the short pipe is jacked section by section into the pre-drilled guide channel. During the operation, workers above ground also need to vertically hoist the short pipe to the bottom of the manhole. Then, the workers below the manhole manually adjust the posture of the short pipe and align it with the preset pipe hole. The short pipe is then pushed into place by the hydraulic jacking equipment.

[0003] However, the aforementioned existing technologies still have significant drawbacks in practical applications: On the one hand, since the design of existing inspection wells did not take into account the needs of pipe jacking construction, there is generally a problem of narrow space inside the well. During the short pipe hoisting process, the space is limited, making it easy for the pipe to collide with or get stuck against the well wall; moreover, the precision of manual hoisting is low, and operational errors such as short pipe tilting or falling off are very likely to occur, posing safety risks such as crushing and squeezing to the underground workers, making it difficult to guarantee the safety of the operation; on the other hand, the underground workers need to simultaneously perform multiple tasks such as operating the hydraulic jacking equipment, calibrating the short pipe connection, and observing the construction environment, which not only leads to low construction efficiency but may also cause operational fatigue due to long-term high-intensity work, resulting in quality hazards such as pipe connection deviation and loss of control of jacking force, seriously affecting the quality, safety, and reliability of pipeline construction.

[0004] Therefore, the present invention provides a pipeline guiding and conveying device for municipal construction. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a pipeline guiding and conveying device for municipal construction, including a suspension support, a pipeline jacking cylinder, and a hydraulic drive unit that provides power to it. The upper part of the suspension support is provided with a height adjustment mechanism. The output end of the height adjustment mechanism is connected to a protective plate for fitting against the inner wall of the working well. A pad is slidably provided on the side of the protective plate away from the well wall, and a lifting cylinder is provided between the pad and the suspension support. The pipeline jacking cylinder is located on the side of the pad away from the protective plate, and the pipeline jacking cylinder and the lifting cylinder are linked by a hydraulic control valve group. The extended end of the pipeline jacking cylinder is connected to a guide sleeve for supporting a short pipe, and the entire pipeline jacking cylinder is located inside the guide sleeve when it is retracted.

[0007] Furthermore, the height adjustment mechanism includes adjusting screws, two of which are symmetrically arranged on the upper part of the protective plate. The upper end of the adjusting screw passes through the suspension bracket and is threaded with a worm gear sleeve. The worm gear sleeve is fitted with a mounting base that is fixedly connected to the suspension bracket. A first worm adapted to the worm gear sleeve is rotatably arranged on one side of the mounting base. A servo motor for driving the first worm to rotate is installed on the upper part of the suspension bracket, and a transmission rod is provided between the two first worms.

[0008] Furthermore, the outer circumference of the guide sleeve is uniformly inlaid with balls.

[0009] Furthermore, the guide sleeve is composed of a protective sleeve and a push annular plate. The end of the protective sleeve is tapered, and an L-shaped groove is provided on the outer side of the end of the protective sleeve. The push annular plate is integrally formed with a protrusion that matches the L-shaped groove.

[0010] Furthermore, the protective sleeve has uniformly spaced storage grooves on its outer circumference, and the storage grooves are connected to the hydraulic drive unit. An ejector slide is slidably arranged in the storage groove, and the balls are uniformly arranged on the outer side of the ejector slide.

[0011] Furthermore, the suspension bracket includes a support platform for installing a height adjustment mechanism and a lifting cylinder. The support platform is symmetrically equipped with guide columns on the side away from the protective plate, and the extended ends of the two guide columns are connected to a double-headed telescopic beam. Both the extended ends of the double-headed telescopic beam and the support platform are equipped with support legs.

[0012] Furthermore, the double-headed telescopic crossbeam includes a hollow crossbeam connected to the extended end of the guide column. A double-headed screw is installed inside the hollow crossbeam. Both ends of the double-headed screw are threadedly connected to extension columns adapted to the hollow crossbeam. The extended ends of the extension columns are fixedly connected to the support legs. A second worm gear for driving the double-headed screw to rotate is installed inside the hollow crossbeam. The double-headed screw has evenly spaced teeth grooves in the middle circumferential direction that are adapted to the second worm gear. One end of the second worm gear has a twist head integrally formed through the hollow crossbeam.

[0013] Furthermore, positioning rods are slidably provided on the lower parts of the opposite sides of the two support legs connected to the extension column, and guide sleeves are rotatably provided at the lower ends of the positioning rods.

[0014] The beneficial effects of this invention are as follows:

[0015] The present invention discloses a pipeline guiding and conveying device for municipal construction. Through a height adjustment mechanism, a protective plate is driven to fit against the manhole wall, forming a stable working channel in the narrow manhole space. The sliding cooperation between the protective plate and the pad ensures that the short pipe always moves along a preset trajectory during the conveying process, completely solving the problems of pipeline collision and jamming with the manhole wall in the prior art. It is compatible with manholes of different sizes. At the same time, through the hydraulic circuit linkage of the lifting cylinder and the pushing cylinder, the automatic adjustment and precise docking of the pipeline posture are realized, eliminating the need for personnel to go down into the manhole and avoiding safety risks such as crushing and squeezing. Attached Figure Description

[0016] The invention will now be further described with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a partial perspective view of the present invention;

[0019] Figure 3 yes Figure 2 A stereoscopic view from another perspective;

[0020] Figure 4 This is a perspective view of the height adjustment mechanism in this invention;

[0021] Figure 5 A perspective view of the protective sleeve and the jacking annular plate in this invention;

[0022] Figure 6 A perspective view of the guide sleeve in this invention;

[0023] Figure 7 A perspective view of the suspension bracket in this invention;

[0024] Figure 8 yes Figure 7 Enlarged view of a portion of point A in the middle;

[0025] Figure 9 yes Figure 7 Enlarged view of section B in the middle.

[0026] In the diagram: 1. Hydraulic drive unit; 2. Height adjustment mechanism; 3. Protective plate; 4. Pad block; 5. Lifting cylinder; 6. Pipeline pushing cylinder; 7. Guide sleeve; 8. Ball bearing; 9. Support platform; 10. Guide column; 11. Double-headed telescopic crossbeam; 12. Support leg; 13. Positioning rod; 14. Guide sleeve; 20. Adjusting screw; 21. Worm gear sleeve; 22. Mounting seat; 23. First worm gear; 24. Servo motor; 25. Transmission rod; 70. Protective sleeve; 71. Pushing annular plate; 72. Protrusion; 73. Ejection slide bar; 110. Hollow crossbeam; 111. Double-headed screw; 112. Extension column; 113. Second worm gear; 114. Twist head; 700. L-shaped slot; 701. Storage slot. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0028] Example 1: As Figures 1 to 6 As shown in the figure, an embodiment of the present invention provides a pipeline guiding and conveying device for municipal construction, including a suspension support, a pipeline jacking cylinder 6, and a hydraulic drive unit 1 that provides power to it. A height adjustment mechanism 2 is provided on the upper part of the suspension support. The output end of the height adjustment mechanism 2 is connected to a protective plate 3 for fitting against the inner wall of the working well. The height adjustment mechanism 2 includes adjusting screws 20, with two adjusting screws 20 symmetrically arranged on the upper part of the protective plate 3. The protective plate 3 and the adjusting screws 20 are fixedly connected by bolts. The upper end of the adjusting screw 20 passes through the suspension support and is threaded with a worm gear sleeve 21. A mounting base 22, fixedly connected to the suspension support, is fitted outside the worm gear sleeve 21. A first worm 23, adapted to the worm gear sleeve 21, is rotatably mounted on one side of the mounting base 22. A servo motor 24 is installed on the upper part of the suspension support to drive the first worm 23 to rotate. A transmission rod 25 connects the two first worms 23. Through the transmission action of the transmission rod 25, the servo motor 24 can synchronously drive the two first worms 23. The horizontal rotational motion is converted into the vertical rotational motion of the adjusting screw 20 through the transmission of the worm gear sleeve 21, so that the height of the protective plate 3 can be precisely adjusted according to the actual height of the excavated hole.

[0029] like Figure 2 and Figure 3As shown, a pad 4 is slidably installed on the side of the protective plate 3 away from the well wall, and a lifting cylinder 5 is installed between the pad 4 and the suspension bracket. The pipeline pushing cylinder 6 is installed on the side of the pad 4 away from the protective plate 3, and the pipeline pushing cylinder 6 and the lifting cylinder 5 are linked by a hydraulic control valve group. The hydraulic control valve can be controlled by a limit switch installed on the protective plate 3. The extended end of the pipeline pushing cylinder 6 is connected to a guide sleeve 7 for carrying the short pipe. When the pipeline pushing cylinder 6 is retracted, it is entirely inside the guide sleeve 7, which effectively saves the installation space in the well and avoids interference between the pipeline pushing cylinder 6 and the well wall or the short pipe. At the same time, ball bearings 8 are evenly embedded in the outer circumference of the guide sleeve 7. In actual operation, the short pipe carried on the guide sleeve 7 is first transported to the height corresponding to the excavation channel by the lifting cylinder 5, and then the pipeline pushing cylinder 6 is controlled by the hydraulic control oil circuit to push the short pipe on the guide sleeve 7 to complete the pushing operation. No manual intervention is required to adjust the posture of the short pipe throughout the process.

[0030] like Figure 5 As shown, the guide sleeve 7 is composed of a protective sleeve 70 and a push annular plate 71. The end of the protective sleeve 70 is tapered, and an L-shaped groove 700 is provided on the outer side of the end of the protective sleeve 70. A protrusion 72 adapted to the L-shaped groove 700 is integrally formed on the push annular plate 71. Through the sliding engagement between the L-shaped groove 700 and the protrusion 72, the protective sleeve 70 and the push annular plate 71 can be quickly installed and disassembled.

[0031] like Figure 6 As shown, the protective sleeve 70 has uniformly distributed storage grooves 701 on its outer circumference, and the storage grooves 701 are connected to the hydraulic drive unit 1. An ejector slide bar 73 is slidably arranged in the storage groove 701, and the balls 8 are evenly arranged on the outside of the ejector slide bar 73. By injecting hydraulic oil into the storage groove 701 through the hydraulic drive unit 1, the ejector slide bar 73 can be driven to extend outward. This allows the support radius of the balls 8 to be adjusted according to the actual diameter of the short pipe to be constructed, ensuring that the short pipe to be pushed is coaxial with the pipe pushing cylinder 6, thereby facilitating the guidance and alignment of two adjacent short pipes, and effectively improving the adaptability of the device to short pipes of different specifications.

[0032] Example 2: Figures 7 to 9 As shown in Example 1, another embodiment of the present invention is as follows:

[0033] The suspension support includes a support platform 9 for installing the height adjustment mechanism 2 and the lifting cylinder 5. Guide columns 10 are symmetrically inserted on the side of the support platform 9 away from the protective plate 3, and the extended ends of the two guide columns 10 are connected to a double-headed telescopic crossbeam 11. Support legs 12 are installed on the extended ends of the double-headed telescopic crossbeam 11 and the support platform 9. Through the movable connection between the guide columns 10 and the support platform 9, the lateral span of the suspension support can be flexibly adjusted. At the same time, through the telescopic function of the double-headed telescopic crossbeam 11, the longitudinal span of the suspension support can be adjusted, thereby improving the adaptability of the suspension support to inspection wells of different diameters.

[0034] The double-headed telescopic crossbeam 11 includes a hollow crossbeam 110 connected to the extended end of the guide post 10. A double-headed screw 111 is installed inside the hollow crossbeam 110. Both ends of the double-headed screw 111 are threadedly connected to extension posts 112 adapted to the hollow crossbeam 110. The extended ends of the extension posts 112 are fixedly connected to the support legs 12. A second worm gear 113 for driving the rotation of the double-headed screw 111 is installed inside the hollow crossbeam 110. The double-headed screw 111 has teeth grooves evenly distributed circumferentially in the middle of its middle section, which are adapted to the second worm gear 113. The second worm 113 has a twist head 114 integrally formed through the hollow crossbeam 110 at one end. By twisting the twist head 114, the second worm 113 is rotated. Through the meshing transmission between the second worm 113 and the double-ended screw 111, the double-ended screw 111 drives the two extension columns 112 at both ends to slide synchronously in opposite directions along the inner wall of the hollow crossbeam 110. This allows the span of the two support legs 12 connected to the extension columns 112 to be adjusted in real time according to the actual diameter of the wellhead, ensuring the stability of the device installation.

[0035] The two support legs 12 connected to the extension column 112 are slidably provided with positioning rods 13 on the lower part of opposite sides, and the lower end of the positioning rods 13 is rotatably provided with guide sleeves 14. Through the sliding action of the guide sleeves 14 against the inner wall of the wellhead, the two support legs 12 can be guided to automatically arrange symmetrically with the central axis of the inspection well as the reference, further improving the installation stability and force balance of the suspension bracket.

[0036] Working principle: During operation, the device is moved above the inspection well. Twisting the toggle head 114 drives the second worm 113 to rotate. Through the meshing transmission between the second worm 113 and the double-headed screw 111, the double-headed screw 111 drives the two extension columns 112 at both ends to slide synchronously towards each other along the inner wall of the hollow crossbeam 110. At the same time, the guide sleeve 14 rotates in contact with the inner wall of the wellhead, so that the two support legs 12 connected to the extension columns 112 can be symmetrically arranged around the central axis of the inspection well. Then, through the transmission rod 25, the servo motor 24 synchronously drives the two first worms 23 to rotate synchronously. At the same time, through the transmission of the worm gear sleeve 21, the horizontal rotation is changed to the vertical rotation of the adjusting screw 20, so that the height of the protective plate 3 can be adjusted according to the height of the excavated channel. After the short pipe on the guide push sleeve 7 is transported to the height of the excavated channel by the lifting cylinder 5, the hydraulic control oil circuit controls the pipeline pushing cylinder 6 to push the short pipe on the guide push sleeve 7.

[0037] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipe guiding and conveying device for municipal construction, comprising a suspension bracket, a pipe jacking cylinder (6) and a hydraulic drive unit (1) for powering the pipe jacking cylinder (6), characterized in that: The upper part of the suspension support is provided with a height adjusting mechanism (2), the output end of the height adjusting mechanism (2) is connected with a protective plate (3) used for abutting with the inner wall of the working well, the side, away from the well wall, of the protective plate (3) is slidably provided with a cushion block (4), and the cushion block (4) and the suspension support are provided with a pull oil cylinder (5), the pipeline pushing oil cylinder (6) is arranged on the side, away from the protective plate (3), of the cushion block (4), and the pipeline pushing oil cylinder (6) and the pull oil cylinder (5) are connected through a hydraulic control valve group to realize oil path linkage, and the extending end of the pipeline pushing oil cylinder (6) is connected with a guide pushing sleeve (7) used for bearing a short pipe, and the pipeline pushing oil cylinder (6) is in the inner cavity of the guide pushing sleeve (7) in the retracted state.

2. The pipe guiding and conveying device for municipal construction according to claim 1, characterized in that: The height adjusting mechanism (2) comprises adjusting screws (20), the two adjusting screws (20) are symmetrically arranged on the upper part of the protective plate (3), and the upper ends of the adjusting screws (20) are threaded through the suspension support and are provided with a worm gear sleeve (21), the worm gear sleeve (21) is externally provided with a mounting seat (22) fixedly connected with the suspension support, one side of the mounting seat (22) is rotatably provided with a first worm (23) matched with the worm gear sleeve (21), the upper part of the suspension support is provided with a servo motor (24) used for driving the first worm (23) to rotate, and the two first worms (23) are connected through a transmission rod (25).

3. The pipe guiding and conveying device for municipal construction according to claim 1, characterized in that: The outer periphery of the guide pushing sleeve (7) is uniformly embedded with balls (8).

4. The pipe guide and conveying device for municipal construction according to claim 3, characterized in that: The guide pushing sleeve (7) is composed of a protective sleeve (70) and a pushing ring plate (71), the end of the protective sleeve (70) is tapered, an L-shaped clamping groove (700) is formed on the outer side of the end of the protective sleeve (70), and the pushing ring plate (71) is integrally formed with a protrusion (72) matched with the L-shaped clamping groove (700).

5. A pipe guiding and conveying device for municipal construction according to claim 4, characterized in that The outer periphery of the protective sleeve (70) is uniformly provided with a receiving groove (701) in communication with the hydraulic drive unit (1), and the receiving groove (701) is slidably provided with an ejection slide (73), and the balls (8) are uniformly arranged on the outer side of the ejection slide (73).

6. The pipe guide and conveying device for municipal construction according to claim 1, characterized in that: The suspension support comprises a support platform (9) used for mounting the height adjusting mechanism (2) and the pull oil cylinder (5), the side, away from the protective plate (3), of the support platform (9) is symmetrically provided with guide columns (10), and the extending ends of the two guide columns (10) are connected with a double-headed telescopic cross beam (11), and the extending ends of the double-headed telescopic cross beam (11) and the support platform (9) are both provided with support legs (12).

7. A pipe guiding and conveying device for municipal construction according to claim 6, characterized in that The double-end telescopic cross beam (11) comprises a hollow cross beam (110) connected with the extension end of the guide column (10), a double-end screw rod (111) is installed in the hollow cross beam (110), the two ends of the double-end screw rod (111) are threadedly connected with extension columns (112) matched with the hollow cross beam (110), the extension ends of the extension columns (112) are fixedly connected with the supporting legs (12), a second worm (113) for driving the double-end screw rod (111) to rotate is installed in the hollow cross beam (110), and toothed grooves matched with the second worm (113) are uniformly formed in the middle part of the double-end screw rod (111) in the circumferential direction, and a torsion head (114) is integrally formed at one end of the second worm (113) and penetrates through the hollow cross beam (110).

8. A pipe guiding and conveying device for municipal construction according to claim 7, characterized in that: The lower parts of the opposite sides of the two supporting legs (12) connected with the extension columns (112) are slidably provided with positioning insertion rods (13), and the lower ends of the positioning insertion rods (13) are rotatably provided with guide sleeves (14).

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