A device for assisting safe and efficient jacking of artificial pipe

Abstract

The utility model relates to manual pipe jacking construction technical field, and disclose a kind of device of safe and efficient jacking of helping manual pipe jacking, including pipe jacking pipe material and steel sleeve, the front end of pipe jacking pipe material is provided with safety protection component, the safety protection component includes soil entering knife edge and secondary soil entering assembly, the soil entering knife edge and secondary soil entering assembly are annular hollow structure, and respectively located steel sleeve front end and rear end, the soil entering knife edge and secondary soil entering assembly are formed safety protection component by welding mode;Mainly in the front end of manual pipe jacking setting safety protection component to change construction soil position, method includes safety protection component customization, assembly and other steps.Compared with the soil outside of pipe in the prior art of manual pipe jacking, the safety protection component in the case directly plays the role of changing soil position, when manual pipe jacking construction, personnel only need to enter pipe after pipeline jacking, construction is safe, operation efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of manual pipe jacking construction technology, specifically a device that assists in the safe and efficient jacking of manual pipes. Background Technology

[0002] With rapid population growth and economic development, the occupancy rate of surface land resources is increasing. Pipe jacking construction technology is widely used in underground engineering construction because it does not require surface excavation and does not damage surface buildings.

[0003] Manual excavation of pipe jacking is a commonly used construction method in pipe jacking construction, with advantages such as simple operation, low project investment, and flexible obstacle removal. However, when the geological conditions are soil layers with high porosity and poor self-stabilization, such as miscellaneous fill or plain fill, the tunnel face and both sides of the pipe are prone to collapse during manual pipe jacking, threatening the safety of construction personnel.

[0004] This invention provides a device to assist in the safe and efficient jacking of pipes by manual jacking, which is used to carry out manual pipe jacking construction safely and efficiently under soil geological conditions. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides the following technical solution: a device for assisting in the safe and efficient jacking of manual pipe, comprising a jacking pipe and a steel sleeve. A safety protection component is provided at the front end of the jacking pipe, the safety protection component comprising an infeed cutter and a secondary infeed assembly. The infeed cutter and the secondary infeed assembly are annular hollow structures and are located at the front and rear ends of the steel sleeve, respectively. The infeed cutter and the secondary infeed assembly are welded together to form the safety protection component. A small cart for conveniently transporting soil is provided inside the jacking pipe.

[0006] As an optimization, the infeed cutter includes a front annular iron plate and a triangular toothed plate. The front annular iron plate is welded to the front end of the inner wall of the steel sleeve, and the triangular toothed plate is welded between the front annular iron plate and the inner wall of the steel sleeve.

[0007] As an optimization, the secondary soil-injection component includes a rear-mounted annular iron plate, a second triangular toothed plate, and a correction hole. The rear-mounted annular iron plate is welded to the rear end of the steel sleeve, and the second triangular toothed plate is welded between the rear-mounted annular iron plate and the inner wall of the steel sleeve.

[0008] As an optimization, the correction hole includes a fan ring and a prefabricated square iron sheet. The fan ring is a part cut from four symmetrical positions on the rear annular iron sheet. The square iron sheet is welded to the two straight edges of the rear annular iron sheet that are cut and at the axial position of the front end of the steel sleeve. The fan ring is welded to the front end of two prefabricated square iron sheets. The triangular toothed plate is welded to the fan ring along the axial direction of the front end of the steel sleeve.

[0009] As an optimization, the distance between the circumferential welding position of the front annular iron plate and the front end of the inner wall of the steel sleeve is the wall thickness of the jacking pipe. The two sides of the triangular toothed plate are welded to the inner wall of the front annular iron plate and the steel sleeve, respectively, and the welding distance between the two toothed plates is 1 / 36 of the diameter of the steel sleeve.

[0010] As an optimization, the distance between the circumferential welding position of the rear annular iron plate and the end of the inner wall of the steel sleeve is the wall thickness of the jacking pipe; triangular toothed plates are also welded on the rear annular iron plate, with the same spacing as the toothed plates welded on the front annular iron plate; the inner diameter of the fan ring is the inner diameter of the jacking pipe, the outer diameter is the diameter of the steel sleeve, and the angle is 20°.

[0011] As an optimization, the jacking pipe is tightly connected to the rear-mounted annular iron plate welded on the steel sleeve, with the overlapping length being the wall thickness of the jacking pipe.

[0012] As an optimization, the trolley includes a carriage, with a bracket fixedly installed on the bottom side of the carriage. Rollers are rotatably connected inside the bracket, and these rollers roll against the inner wall of the jacking pipe. Telescopic rods are fixedly installed on both sides of the carriage, with side wheels installed at the bottom of each telescopic rod. Each telescopic rod consists of a fixed cylinder, a support rod, and a compression spring. The support rod is slidably inserted into the compression spring. The fixed cylinder is fixedly installed between the top side of the support rod and the top wall of the compression spring. The side wheels are fixedly installed at the bottom end of the support rod. The two telescopic rods support the carriage, preventing it from tipping over during soil transportation and facilitating the removal of soil from the pipe.

[0013] The beneficial effects of this utility model are: 1. This device, which assists in the safe and efficient advancement of manual pipe jacking, installs a protective component at the front end of the manually jacked pipe. This protective component includes an infeed cutter and a secondary cutting assembly. Compared to conventional manual pipe jacking methods, this protective component, through the combination of the infeed cutter and the secondary cutting assembly, directly cuts the soil and changes the exit position of the manual pipe jacking machine. During manual pipe jacking construction, it is only necessary to wait for the pipe jacking machine to advance and cut the soil before entering the protective component for exit. If deviation occurs, a small jack can be installed in the correction hole for correction. The construction is efficient and safe, with a shorter construction period, higher accuracy, and greater safety compared to conventional manual pipe jacking methods.

[0014] 2. This device, which assists in the safe and efficient jacking of pipes, facilitates the removal of soil from the pipe using a small cart inside the pipe. The cart is supported by telescopic rods on both sides to prevent it from tipping over during soil transport. When the cart tilts, it compresses a spring on one side, which provides shock absorption and makes the cart move more stably. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a front view of the safety protection structure of this utility model; Figure 3 This is a side sectional view of the structure of this utility model; Figure 4 This is a schematic diagram of the trolley structure of this utility model.

[0016] In the diagram: 1. Pipeline; 2. Steel sleeve; 3. Front annular iron plate; 4. Triangular toothed plate one; 5. Rear annular iron plate; 6. Triangular toothed plate two; 7. Fan ring; 8. Square iron plate; 11. Carriage; 12. Support; 13. Roller; 14. Side wheel; 15. Fixed cylinder; 16. Support rod; 17. Compression spring. Detailed Implementation

[0017] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "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, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 A device for assisting in the safe and efficient jacking of pipes by manual jacking includes a jacking pipe 1 and a steel sleeve 2. The steel sleeve 2 is 1m long, 1cm thick, and has a diameter larger than the outer diameter of the jacking pipe 1. A safety protection component is provided at the front end of the jacking pipe 1. The safety protection component includes an infeed cutter and a secondary infeed assembly. The infeed cutter and the secondary infeed assembly have a ring-shaped hollow structure and are located at the front end and rear end of the steel sleeve 2, respectively. The infeed cutter and the secondary infeed assembly are welded together to form the safety protection component.

[0020] Please see Figure 1-3The inlet cutter includes a front annular iron plate 3 and a triangular toothed plate 4. The front annular iron plate 3 is welded to the front end of the inner wall of the steel sleeve 2. The distance between the circumferential welding position of the front annular iron plate 3 and the front end of the inner wall of the steel sleeve 2 is the wall thickness of the jacking pipe 1. The two sides of the triangular toothed plate 4 are welded to the front annular iron plate 3 and the inner wall of the steel sleeve 2 respectively. The welding distance between the two toothed plates is 1 / 36 of the diameter of the steel sleeve 2.

[0021] Please see Figure 1-3 The secondary soil-intake component includes a rear-mounted annular iron plate 5, a triangular toothed plate 2 6, and a correction hole. The rear-mounted annular iron plate 5 is welded to the rear end of the steel sleeve 2. The jacking pipe 1 is tightly connected to the rear-mounted annular iron plate 5 welded on the steel sleeve 2. The overlap length is the wall thickness of the jacking pipe 1. The distance between the circumferential welding position of the rear-mounted annular iron plate 5 and the end of the inner wall of the steel sleeve 2 is the wall thickness of the jacking pipe 1. The two sides of the triangular toothed plate 2 6 are respectively welded to the rear-mounted annular iron plate 5 and the inner wall of the steel sleeve 2. The welding distance between the two toothed plates is 1 / 36 of the diameter of the steel sleeve 2.

[0022] Please see Figure 1-3 There are two ring-shaped iron plates, the front ring-shaped iron plate 3 and the rear ring-shaped iron plate 5, each with a thickness of 1cm. Their inner and outer diameters are the same as those of the jacking pipe 1. The triangular toothed plate is in the shape of an isosceles triangle with a thickness of 1cm and the side length is the wall thickness of the jacking pipe 1. The square iron plate 8 is in the shape of a square with a thickness of 1cm and the side length is the wall thickness of the jacking pipe 1.

[0023] Please see Figure 1-3 The correction hole includes a fan ring 7 and a prefabricated square iron plate 8. The fan ring 7 is a part cut from four symmetrical positions on the rear annular iron plate 5. The inner diameter of the fan ring 7 is the inner diameter of the jacking pipe 1, the outer diameter is the diameter of the steel sleeve 2, and the angle is 20°. The square iron plate 8 is welded to the two straight edges of the rear annular iron plate 5 that are cut and at the axial position of the front end of the steel sleeve 2. The fan ring 7 is welded to the front end of the two prefabricated square iron plates 8. The triangular toothed plate 6 is welded to the fan ring 7 along the axial direction of the front end of the steel sleeve 2.

[0024] Please see Figure 4The jacking pipe 1 is equipped with a small cart for easy access and transport of soil. The cart includes a carriage 11, and a bracket 12 is fixedly installed on the bottom side of the carriage 11. Rollers 13 are rotatably connected inside the bracket 12 and roll against the inner wall of the jacking pipe 1. Telescopic rods are fixedly installed on both sides of the carriage 11. Side wheels 14 are installed at the bottom of the telescopic rods. The telescopic rods are composed of a fixed cylinder 15, a support rod 16, and a compression spring 17. The support rod 16 is slidably inserted into the compression spring 17. The fixed cylinder 15 is fixedly installed between the top side of the support rod 16 and the top wall of the compression spring 17. The side wheels 14 are fixedly installed at the bottom end of the support rod 16. The carriage 11 is supported by the telescopic rods on both sides to prevent the carriage 11 from tipping over during the transport of soil and to facilitate the removal of soil from the pipe.

[0025] When using it, the specific steps are as follows: S1: Select the specifications of the safety protection components according to the diameter and wall thickness of the jacking pipe 1. After the prefabricated components are completed in the factory and transported to the site, weld the safety protection components of the manual jacking pipe on the construction site. In this case, the prefabricated safety protection components include steel sleeve 2, annular iron plates, triangular toothed plates, and prefabricated square iron plates 8. The DN1500 concrete jacking pipe has a wall thickness of 15cm. The specifications of each component are as follows: steel sleeve 2 is 1m long, 1cm thick, and has a diameter of DN1700; there are a total of 2 annular iron plates, each 1cm thick, with inner and outer diameters of DN1500 and DN700 respectively; there are a total of 72 triangular toothed plates in the shape of isosceles triangles, each 1cm thick, with a side length of 15cm; and there are a total of 8 prefabricated square iron plates in the shape of squares, each 1cm thick, with a side length of 15cm.

[0026] S2: The safety protection components in S1 include the soil inlet cutter and the secondary soil inlet assembly; the soil inlet cutter and the secondary soil inlet assembly have a ring-shaped hollow structure and are located at the front and rear ends of the steel sleeve 2, respectively; the soil inlet cutter and the secondary soil inlet assembly are assembled into a safety protection component after welding. S3: Weld a front-mounted annular iron plate 3 to the front end of the inner wall of the steel sleeve 2, and weld a triangular toothed plate between the front-mounted annular iron plate 3 and the inner wall of the steel sleeve 2 to complete the assembly of the soil inlet cutter. In this case, the circumferential welding position of the front annular iron plate 3 is 15cm away from the front end of the inner wall of the steel sleeve 2. The two sides of the triangular toothed plate are welded to the front annular iron plate 3 and the inner wall of the steel sleeve 2 respectively, and the welding distance between the two triangular toothed plates is 15cm.

[0027] S4: Weld a rear-mounted annular iron plate 5 to the rear end of the inner wall of the steel sleeve 2. After welding, cut the rear-mounted annular iron plate 5 at four symmetrical positions (up, down, left, and right) and remove the cut fan rings 7 for later use. Weld prefabricated square iron plates 8 along the axial direction of the front end of the steel sleeve 2 on the two straight edges of the cut rear-mounted annular iron plate 5. Then weld the previously cut fan rings 7 to the front ends of the two prefabricated square iron plates 8. Finally, weld a triangular toothed plate along the axial direction of the front end of the steel sleeve 2 onto the fan rings 7 to form a correction hole. The rear-mounted annular iron plate 5, the triangular toothed plate, and the correction hole together constitute the secondary soil-feeding component. In this case, the distance between the circumferential welding position of the rear annular iron plate 5 and the end of the inner wall of the steel sleeve 2 is 15cm; the inner diameter of the fan ring 7 is DN750, the outer diameter is DN900, and the angle is 20°; triangular toothed plates are also welded on the rear annular iron plate 5, and the welding distance between the two triangular toothed plates is 15cm.

[0028] S5: After the soil entry cutter and the secondary soil entry component are welded together to form a safety protection component, connect them to the jacking pipe 1 with a socket, and the manual jacking can begin.

[0029] In this case, the jacking pipe 1 and the steel sleeve 2 are closely connected to the rear annular iron plate 5, and the overlap length of the jacking pipe 1 and the steel sleeve 2 is 15cm.

[0030] S6: Finally, soil is loaded into the carriage 11. Through the cooperation of the telescopic rods on both sides and the side wheels 14, the carriage 11 can move stably inside the jacking pipe 1, which facilitates the transfer of the soil inside to the outside.

[0031] It should be noted that this safety protection component is only applicable to manual pipe jacking projects in soil-rich geological conditions. Through the combined action of the jacking equipment and the safety protection component, each advance is 1 meter. The initial cutting edge cuts the soil in front of the pipe and introduces it into the steel sleeve 2. The secondary cutting component further cuts the soil inside the steel sleeve 2, making it more loose and allowing it to enter the pipe, thus enabling workers to safely and efficiently transport excavated soil. If rock strata are encountered during jacking, the safety protection component should be treated as a tool pipe, and conventional manual pipe jacking methods can be used. If the jacking route deviates during construction, a small jack is installed in the correction hole at the opposite position of the deviation direction, and the deviation is corrected in conjunction with the target inside the pipe and the laser aiming device on the pipe jacking machine.

[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "join," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings.

[0034] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A device for assisting in the safe and efficient jacking of manual pipe jacking, comprising a jacking pipe (1) and a steel sleeve (2), characterized in that: The front end of the jacking pipe (1) is provided with a safety protection component, which includes a soil inlet and a secondary soil inlet assembly. The soil inlet and the secondary soil inlet assembly are in the form of a ring-shaped hollow structure and are located at the front end and rear end of the steel sleeve (2), respectively. The soil inlet and the secondary soil inlet assembly are welded together to form the safety protection component. The inside of the jacking pipe (1) is provided with a small cart for easy access and transportation of soil.

2. The device for safe and efficient jacking of a man-made pipe according to claim 1, characterized in that: The soil inlet includes a front annular iron plate (3) and a triangular toothed plate (4). The front annular iron plate (3) is welded to the front end of the inner wall of the steel sleeve (2), and the triangular toothed plate (4) is welded between the front annular iron plate (3) and the inner wall of the steel sleeve (2).

3. The device for safe and efficient jacking of a man-made pipe according to claim 1, characterized in that: The secondary soil intake assembly includes a rear annular iron plate (5), a triangular toothed plate (6), and a correction hole. The rear annular iron plate (5) is welded to the rear end of the steel sleeve (2), and the triangular toothed plate (6) is welded between the rear annular iron plate (5) and the inner wall of the steel sleeve (2).

4. The device for safe and efficient jacking of a man-made pipe according to claim 3, characterized in that: The correction hole includes a fan ring (7) and a prefabricated square iron plate (8). The fan ring (7) is a part cut from the four symmetrical positions of the rear annular iron plate (5). The square iron plate (8) is welded to the two straight edges of the rear annular iron plate (5) that are cut and at the axial position of the front end of the steel sleeve (2). The fan ring (7) is welded to the front end of the two prefabricated square iron plates (8). The triangular toothed plate (6) is welded to the fan ring (7) along the axial direction of the front end of the steel sleeve (2).

5. The device for safe and efficient jacking of a man-made pipe according to claim 2, characterized in that: The distance between the circumferential welding position of the front annular iron plate (3) and the front end of the inner wall of the steel sleeve (2) is the wall thickness of the jacking pipe (1). The two sides of the triangular toothed plate (4) are welded to the inner walls of the front annular iron plate (3) and the steel sleeve (2) respectively. The welding distance between the two toothed plates is 1 / 36 of the diameter of the steel sleeve (2).

6. The device for assisting safe and efficient manual pipe jacking according to claim 4, characterized in that: The distance between the circumferential welding position of the rear annular iron plate (5) and the end of the inner wall of the steel sleeve (2) is the wall thickness of the jacking pipe (1); the rear annular iron plate (5) is also welded with triangular toothed plates, the spacing of which is the same as the spacing of the toothed plates welded on the front annular iron plate (3); the inner diameter of the fan ring (7) is the inner diameter of the jacking pipe (1), the outer diameter is the diameter of the steel sleeve (2), and the angle is 20°.

7. The device for safe and efficient jacking of a man-made pipe according to claim 4, characterized in that: The jacking pipe (1) is tightly connected to the rear-mounted annular iron plate (5) welded on the steel sleeve (2), and the overlap length is the wall thickness of the jacking pipe (1).

8. The device for safe and efficient jacking of a man-made pipe according to claim 1, characterized in that: The trolley includes a carriage (11), a bracket (12) is fixedly installed on the bottom side of the carriage (11), a roller (13) is rotatably connected inside the bracket (12), and the roller (13) rolls against the inner wall of the jacking pipe (1). Telescopic rods are fixedly installed on both sides of the carriage (11), and side wheels (14) are installed at the bottom of the telescopic rods. The telescopic rod is composed of a fixed cylinder (15), a support rod (16) and a compression spring (17), and the support rod (16) is slidably inserted into the inside of the compression spring (17). The fixed cylinder (15) is fixedly installed between the top side of the support rod (16) and the top wall of the compression spring (17), and the side wheel (14) is fixedly installed at the bottom end of the support rod (16).

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