Efficient pipe jacking machine for municipal engineering

Abstract

The utility model discloses an efficient pipe jacking machine for municipal engineering, which relates to the field of pipe jacking machines and comprises a hydraulic air cylinder, a pipeline supporting rod is arranged below the hydraulic air cylinder, a guide ring is mounted above the pipeline supporting rod, and a pipeline body extending into soil is arranged at the end of the guide ring. The limiting mechanism is arranged on the pipeline supporting rod; the limiting mechanism comprises a limiting unit and a resetting unit; the limiting unit is used for providing limiting for rotation of the guide ball. By arranging the limiting mechanism, when a crane hoists the guide ring for installation, the guide ring falls on the fixed supporting rod, the foot can be inserted between the movable rod and the push rod, the movable rod is stressed to move upwards to remove limiting of the push rod, and then backward pulling force is applied to the push rod to remove rotation limiting of the guide ball; at the moment, the angle of the guide ring can be adjusted, the guide ring is flush with the top end, butt joint is facilitated, and the working efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the field of pipe jacking machines, in particular to a high-efficiency pipe jacking machine for municipal engineering. Background Art

[0002] The pipe jacking machine is mainly composed of a rotary excavation system, a main top hydraulic propulsion system, a soil conveying system, a grouting system, measuring equipment, ground lifting equipment and an electrical system.

[0003] Pipe jacking machines are generally used for pipeline installation work in municipal engineering. When in use, the pipe and the pipe connecting ring need to be moved to the pipe support rod by a crane, and the pipe is pushed to move by a hydraulic push rod, and the cutter head in front of the pipe moves forward. During use, it is necessary to manually intermittently move the soil excavated by the cutter head out of the pipe, and it is necessary to manually install a semicircular guide ring to provide a moving guide for the trolley transporting the soil. During the installation process, it is necessary to position the two ends of the semicircular guide ring and the end of the hydraulic push rod so that the two ends of the guide ring are subjected to force. Based on this, in order to facilitate the rapid positioning and installation of the semicircular guide ring, the outer wall of the guide ring is aligned with the two ends of the hydraulic push rod. The utility model proposes a high-efficiency pipe jacking machine for municipal engineering, which further improves work efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a high-efficiency pipe jacking machine for municipal engineering in order to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a high-efficiency pipe jacking machine for municipal engineering, comprising a hydraulic cylinder, a pipe support rod provided below the hydraulic cylinder, a guide ring installed above the pipe support rod, a pipe body extending into the soil provided at the end of the guide ring, and a limiting mechanism provided on the pipe support rod;

[0006] The limiting mechanism includes a limiting unit and a reset unit;

[0007] The limiting unit is used to provide a limit for the rotation of the guide ball;

[0008] The reset unit is used to provide a reset elastic force for the limiting unit.

[0009] As a further solution of the present invention: the limiting unit includes a guide ball, a push rod, a connecting rod, a positioning block, and a movable rod;

[0010] The guide ball is rotatably mounted on the outer wall of the top end of the pipe support rod, and the guide ball is used to provide guidance for the rotation of the guide ring;

[0011] The push rod is axially slidably mounted on the inner wall of the pipe support rod and extends to the outside of the pipe support rod, and the push rod is used to synchronously drive the connecting rod to move;

[0012] The connecting rod is fixed to the outer wall of the push rod and is located inside the pipe support rod. The connecting rod is used to synchronously drive the positioning block to move;

[0013] The positioning block is fixed to the outer wall of the connecting rod and contacts the outer wall of the guide ball, and the positioning block is used to provide friction for the rotation of the guide ball;

[0014] The movable rod is vertically slidably installed inside the pipeline support rod and extends to the outside of the pipeline support rod. The movable rod is used to provide a limit for the axial movement of the push rod.

[0015] As a further solution of the present invention: the reset unit includes a positioning rod and a spring;

[0016] The positioning rod is fixed inside the pipe support rod and passes through the push rod, and the positioning rod is used to provide a guide for the axial movement of the push rod;

[0017] The two ends of the spring are respectively clamped on the inside of the pipeline support rod and the outer wall of the push rod, and the spring is used to always provide a directional reset elastic force for the push rod.

[0018] As a further solution of the present invention: the outer wall of the movable rod is in an "L"-shaped structure as a whole, and the outer wall of the movable rod is in contact with the outer wall of the push rod.

[0019] As a further solution of the present invention: the inner wall of the pipeline support rod is formed with a sliding groove for the push rod to move axially, and the inner wall of the pipeline support rod is also formed with a sliding groove for the movable rod to move vertically.

[0020] As a further solution of the present invention: the position where the outer wall of the positioning block contacts the outer wall of the guide ball matches the outer wall of the guide ball, and a pad that increases friction is provided at the position where the positioning block contacts the guide ball.

[0021] As a further solution of the present invention: there are multiple guide balls, and the multiple guide balls are evenly and symmetrically distributed on the outer wall of the pipeline support rod.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] By setting a limit mechanism, when the guide ring is installed on the crane, the guide ring falls on the fixed support rod. The foot can be inserted between the movable rod and the push rod, and the movable rod is forced to move upward to release the limit of the push rod. Then, the push rod is pulled backward to release the rotation limit of the guide ball. At this time, the angle of the guide ring can be adjusted to align the guide ring with the output end of the hydraulic push rod, which is convenient for docking and further improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of the utility model;

[0025] Figure 2 This is a schematic diagram of the installation structure of the guide ring of the utility model;

[0026] Figure 3 This is a cross-sectional view of the internal structure of the pipeline support rod of the present utility model.

[0027] In the figure: 1. Hydraulic cylinder; 2. Pipe support rod; 3. Guide ring; 4. Pipe body; 5. Limiting mechanism; 501. Guide ball; 502. Push rod; 503. Connecting rod; 504. Positioning block; 505. Movable rod; 506. Positioning rod; 507. Spring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 3 In an embodiment of the utility model, a high-efficiency pipe jacking machine for municipal engineering includes a hydraulic cylinder 1, a pipe support rod 2 is provided below the hydraulic cylinder 1, a guide ring 3 is installed above the pipe support rod 2, a pipe body 4 extending into the soil is provided at the end of the guide ring 3, and a limiting mechanism 5 is provided on the pipe support rod 2;

[0030] The limiting mechanism 5 includes a limiting unit and a reset unit;

[0031] The limiting unit is used to provide a limit for the rotation of the guide ball 501;

[0032] The reset unit is used to provide a reset elastic force for the limit unit;

[0033] The limiting unit includes a guide ball 501, a push rod 502, a connecting rod 503, a positioning block 504, and a movable rod 505;

[0034] The guide ball 501 is rotatably mounted on the outer wall of the top end of the pipe support rod 2. The guide ball 501 is used to provide a guide for the rotation of the guide ring 3.

[0035] The push rod 502 is axially slidably mounted on the inner wall of the pipe support rod 2 and extends to the outside of the pipe support rod 2. The push rod 502 is used to synchronously drive the connecting rod 503 to move;

[0036] The connecting rod 503 is fixed to the outer wall of the push rod 502 and is located inside the pipe support rod 2. The connecting rod 503 is used to synchronously drive the positioning block 504 to move;

[0037] The positioning block 504 is fixed to the outer wall of the connecting rod 503 and contacts the outer wall of the guide ball 501. The positioning block 504 is used to provide friction for the rotation of the guide ball 501.

[0038] The movable rod 505 is vertically slidably installed inside the pipe support rod 2 and extends to the outside of the pipe support rod 2. The movable rod 505 is used to provide a limit for the axial movement of the push rod 502;

[0039] The reset unit includes a positioning rod 506 and a spring 507;

[0040] The positioning rod 506 is fixed inside the pipe support rod 2 and passes through the push rod 502. The positioning rod 506 is used to provide a guide for the axial movement of the push rod 502.

[0041] The two ends of the spring 507 are respectively clamped to the inside of the pipe support rod 2 and the outer wall of the push rod 502. The spring 507 is used to always provide a directional reset elastic force for the push rod 502.

[0042] When the guide ring 3 is rotated, the outer wall of the guide ring 3 is aligned with the output end of the hydraulic cylinder 1, thereby completing the docking operation of the guide ring 3.

[0043] Please refer to Figure 1-Figure 3The outer wall of the movable rod 505 is an "L"-shaped structure as a whole. The outer wall of the movable rod 505 contacts the outer wall of the push rod 502. The inner wall of the pipe support rod 2 is formed with a slide groove for axial movement of the push rod 502. The inner wall of the pipe support rod 2 is also formed with a slide groove for vertical movement of the movable rod 505. The position where the outer wall of the positioning block 504 contacts the outer wall of the guide ball 501 matches the outer wall of the guide ball 501. The position where the positioning block 504 contacts the guide ball 501 is provided with a pad to increase friction. The number of guide balls 501 is provided in plurality, and the multiple guide balls 501 are evenly and symmetrically distributed on the outer wall of the pipe support rod 2.

[0044] In this embodiment: through this structure, after the angle of the guide ring 3 is adjusted, the pulling force for the axial movement of the push rod 502 will no longer be provided, so that the push rod 502 is reset under the action of the spring 507, and the reset push rod 502 simultaneously drives the positioning block 504 to reset, and the positioning block 504 contacts the outer wall of the guide ball 501 to increase the rotational friction of the guide ball 501. Then, the movable rod 505 will also fall to one side of the push rod 502 under the action of gravity, and the axial movement of the push rod 502 will be limited again, so that the positioning block 504 always remains on the outer wall of the guide ball 501 to increase the friction on the rotation of the guide ball 501, thereby preventing the guide ring 3 from rotating again.

[0045] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-efficiency pipe jacking machine for municipal engineering, comprising a hydraulic cylinder (1), a pipe support rod (2) being provided below the hydraulic cylinder (1), a guide ring (3) being installed above the pipe support rod (2), and a pipe body (4) extending into the soil being provided at the end of the guide ring (3), characterized in that: A limiting mechanism (5) provided on the pipeline support rod (2); The limiting mechanism (5) comprises a limiting unit and a reset unit; The limiting unit is used to provide a limit for the rotation of the guide ball (501); The reset unit is used to provide a reset elastic force for the limiting unit.

2. A high-efficiency pipe jacking machine for municipal engineering according to claim 1, characterized in that: The limiting unit comprises a guide ball (501), a push rod (502), a connecting rod (503), a positioning block (504), and a movable rod (505); The guide ball (501) is rotatably mounted on the outer wall of the top end of the pipe support rod (2), and the guide ball (501) is used to provide guidance for the rotation of the guide ring (3); The push rod (502) is axially slidably mounted on the inner wall of the pipe support rod (2) and extends to the outside of the pipe support rod (2), and the push rod (502) is used to synchronously drive the connecting rod (503) to move; The connecting rod (503) is fixed to the outer wall of the push rod (502) and is located inside the pipe support rod (2). The connecting rod (503) is used to synchronously drive the positioning block (504) to move; The positioning block (504) is fixed to the outer wall of the connecting rod (503) and contacts the outer wall of the guide ball (501), and the positioning block (504) is used to provide friction for the rotation of the guide ball (501); The movable rod (505) is vertically slidably mounted inside the pipeline support rod (2) and extends to the outside of the pipeline support rod (2). The movable rod (505) is used to provide a limit for the axial movement of the push rod (502).

3. A high-efficiency pipe jacking machine for municipal engineering according to claim 2, characterized in that: The reset unit comprises a positioning rod (506) and a spring (507); The positioning rod (506) is fixed inside the pipe support rod (2) and passes through the push rod (502), and the positioning rod (506) is used to provide guidance for the axial movement of the push rod (502); The two ends of the spring (507) are respectively clamped to the inside of the pipe support rod (2) and the outer wall of the push rod (502), and the spring (507) is used to always provide a directional reset elastic force for the push rod (502).

4. A high-efficiency pipe jacking machine for municipal engineering according to claim 2, characterized in that: The outer wall of the movable rod (505) is in an "L"-shaped structure as a whole, and the outer wall of the movable rod (505) is in contact with the outer wall of the push rod (502).

5. A high-efficiency pipe jacking machine for municipal engineering according to claim 2, characterized in that: The inner wall of the pipeline support rod (2) is formed with a sliding groove for the push rod (502) to move axially, and the inner wall of the pipeline support rod (2) is also formed with a sliding groove for the movable rod (505) to move vertically.

6. A high-efficiency pipe jacking machine for municipal engineering according to claim 2, characterized in that: The position where the outer wall of the positioning block (504) contacts the outer wall of the guide ball (501) matches the outer wall of the guide ball (501), and a pad for increasing friction is provided at the position where the positioning block (504) contacts the guide ball (501).

7. A high-efficiency pipe jacking machine for municipal engineering according to claim 2, characterized in that: There are multiple guide balls (501), and the multiple guide balls (501) are evenly and symmetrically distributed on the outer wall of the pipeline support rod (2).

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