Pipe hoisting device for a rainwater pipe network

Abstract

This utility model discloses a pipe hoisting device for rainwater pipe networks, relating to the field of rainwater pipe network construction technology. It includes a first crossbeam, a second crossbeam, and a support column. A first counterweight ring and a second counterweight ring are fitted around the outer periphery of the first crossbeam. The first counterweight ring can slide along the length of the first crossbeam to change the pipe's tilt angle; the second counterweight ring can also slide along the length of the first crossbeam to change the pipe's tilt angle. By sliding the first and second counterweight rings on the first crossbeam, the user changes the torque on both sides of the utility model, thereby adjusting the pipe's tilt angle. After the tilt angle of the first pipe is adjusted, the relative positions of the first crossbeam, the first counterweight ring, and the second counterweight ring remain unchanged. Then, the utility model is used to hoist subsequent pipes of the same type. When the subsequent pipes are hoisted, they can automatically rotate to the required tilt angle without requiring further adjustment by the user, thus simplifying the construction process.

Description

Technical Field

[0001] This utility model relates to the field of rainwater pipe network construction technology, specifically to a pipe hoisting device for rainwater pipe networks. Background Technology

[0002] The stormwater drainage network consists of several pipes connected in series to achieve drainage. The ends of the pipes are integrally fixed with expansion joints for connecting adjacent pipe ends.

[0003] Pipelines are typically transported on the construction site by hoisting: the pipeline in the truck bed is hoisted above the foundation, the tilt angle of the pipeline is adjusted, and then the hoisted pipeline is pushed laterally so that the downward tilting end of the hoisted pipeline is inserted into the outer expansion of the pipeline already placed on the pad. Then the upward tilting end of the hoisted pipeline is slowly lowered until the pipeline is pressed against the pad.

[0004] The inclined setting of the suspended pipe can prevent the bottom surface from contacting and rubbing against the pad (which is integrally fixed to the foundation) when it is inserted horizontally, thereby avoiding wear on the pipe and improving the smoothness and efficiency of construction.

[0005] In traditional technology, users need to manually adjust the tilt angle of each pipe (for example, pressing one end of the pipe down / lifting it up, thereby raising / lowering the other end); manual adjustment has low precision. Summary of the Invention

[0006] In order to overcome the problem of "low accuracy in manually lifting / pressing down the pipe to adjust the tilt angle" in the above-mentioned background technology, this utility model provides a pipe hoisting device for rainwater pipe network.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is:

[0008] A pipe hoisting device for a rainwater pipe network includes a first crossbeam, a second crossbeam, and a vertical support column; the first crossbeam, the second crossbeam, and the vertical support column are arranged in a C-shape; the first crossbeam is positioned above the second crossbeam, and an insertion gap for accommodating the top of the pipe is provided between the first crossbeam and the second crossbeam; the top end of the vertical support column is fixedly connected to the end of the first crossbeam, and the bottom end of the vertical support column is fixedly connected to the end of the second crossbeam; a lifting ring is provided at the center of the top surface of the first crossbeam; a first counterweight ring and a second counterweight ring are fitted around the outer periphery of the first crossbeam; the first counterweight... The first counterweight ring and the second counterweight ring are respectively disposed on both sides of the lifting ring; the first counterweight ring can slide along the length direction of the first crossbeam to change the inclination angle of the pipe; the second counterweight ring can slide along the length direction of the first crossbeam to change the inclination angle of the pipe; the top surface of the first crossbeam is provided with a first limiting surface and a second limiting surface, the top surface of the inner cavity of the first counterweight ring is provided with a third limiting surface, the third limiting surface can be pressed against the first limiting surface; the top surface of the inner cavity of the second counterweight ring is provided with a fourth limiting surface, the fourth limiting surface can be pressed against the second limiting surface.

[0009] As a further optimization of this utility model, the first limiting surface has a rack-shaped structure, the third limiting surface has a rack-shaped structure and can be adapted to mesh with the first limiting surface; the third limiting surface has a rack-shaped structure, and the fourth limiting surface has a rack-shaped structure and can be adapted to mesh with the second limiting surface.

[0010] As a further optimization of this utility model, the first limiting surface and the second limiting surface are respectively disposed on both sides of the lifting ring.

[0011] As a further optimization of this utility model, the second counterweight ring is placed between the lifting ring and the support column; the end of the first crossbeam away from the support column is provided with an end plate, which is used to stop the first counterweight ring.

[0012] As a further optimization of this utility model, a first rack and a second rack are fixedly installed on the upper part of the first crossbeam; the first limiting surface is located on the upper surface of the first rack, and the second limiting surface is located on the upper surface of the second rack.

[0013] As a further optimization of this utility model, a lower protrusion is provided on the bottom surface of the first crossbeam near the end of the support column. The top surface of the lower protrusion is fixedly connected to the first crossbeam, and the side wall is fixedly connected to the support column.

[0014] As a further optimization of this utility model, a stop plate is provided below the first crossbeam. The stop plate includes a straight plate portion and an inclined plate portion that are fixedly connected to each other. The bottom surface of the straight plate portion is coplanar with the bottom surface of the lower protrusion.

[0015] As a further optimization of this utility model, one end of the straight plate is fixedly connected to the side wall of the lower protrusion, and the other end is fixedly connected to the bottom end of the inclined plate; the top end of the inclined plate is fixedly connected to the end of the bottom surface of the first crossbeam away from the lower protrusion.

[0016] As a further optimization of this utility model, both the first counterweight ring and the second counterweight ring are located above the straight plate portion; a sliding gap is provided between the top surface of the straight plate portion and the bottom surface of the first crossbeam, with the bottom of the first counterweight ring placed within the sliding gap and the bottom of the second counterweight ring placed within the sliding gap.

[0017] As a further optimization of this utility model, the straight plate portion is arranged parallel to the first crossbeam; the straight plate portion is arranged parallel to the second crossbeam.

[0018] In summary, this utility model has at least one of the following advantages:

[0019] (1) The user slides the first and second counterweight rings on the first crossbeam to change the torque on both sides of the utility model, thereby adjusting the inclination angle of the pipeline.

[0020] (2) After the tilt angle of the first pipe is adjusted, keep the relative positions of the first crossbeam, the first counterweight ring and the second counterweight ring unchanged, and then use this utility model to hoist the subsequent pipes of the same model. When the subsequent pipes are hoisted, they can automatically rotate to the required tilt angle without the need for personnel to adjust again, thereby simplifying the construction steps; at the same time, batch standardized operation is realized, with high adjustment accuracy and improved construction efficiency.

[0021] (3) The first limiting surface has a rack-shaped structure, and the third limiting surface has a rack-shaped structure and can be adapted to mesh with the first limiting surface, thereby increasing the sliding friction between the first limiting surface and the third limiting surface and avoiding unnecessary sliding of the first counterweight ring. The third limiting surface has a rack-shaped structure, and the fourth limiting surface has a rack-shaped structure and can be adapted to mesh with the second limiting surface, thereby increasing the sliding friction between the second limiting surface and the fourth limiting surface and avoiding unnecessary sliding of the second counterweight ring.

[0022] (4) The insertion gap and the sliding gap are respectively located on the upper and lower sides of the straight plate, so as to avoid the problem of the pipe contacting and impacting the first counterweight ring and the second counterweight ring when it is inserted into the insertion gap, thereby improving the smoothness and convenience of the use of this utility model.

[0023] (5) When the bottom surface of the straight plate and the bottom surface of the lower protrusion are coplanar, the end face of the outer expansion part can smoothly pass through the junction of the straight plate and the lower protrusion during the process of pipe insertion into the insertion gap, without hitting the bottom of the side wall of the lower protrusion, thereby avoiding the problem of impact damage to the outer expansion part and improving the construction quality. Attached Figure Description

[0024] The present application will be further explained below with reference to the accompanying drawings:

[0025] Figure 1 A front view diagram of the pipeline installation status;

[0026] Figure 2 This is a front view diagram of the pipeline hoisting process.

[0027] Figure 3 This is a front view schematic diagram of the overall structure of this utility model;

[0028] Figure 4 Front view schematic diagram of the stop baffle and lower protrusion structure;

[0029] Figure 5 This is a front view schematic diagram showing the positions and structure of the first and second limiting surfaces;

[0030] Figure 6 This is a front view diagram of the vertical section of the first counterweight ring structure;

[0031] Figure 7 This is a schematic diagram of the first gap location and the front view of the structure;

[0032] Figure 8 This is a front view diagram of the vertical section of the second counterweight ring structure;

[0033] Figure 9 This is a schematic diagram of the second gap location and the front view of the structure.

[0034] Explanation of reference numerals in the attached figures:

[0035] In the picture,

[0036] 1. First crossbeam; 10. Insertion gap; 101. Lifting ring; 102. End plate; 103. Lower protrusion; 104. Stop plate; 1040. Sliding gap; 1041. Straight plate section; 1042. Inclined plate section; 11. First counterweight ring; 110. First gap; 111. Third limiting surface; 12. Second counterweight ring; 120. Second gap; 121. Fourth limiting surface; 13. First limiting surface; 130. First rack; 14. Second limiting surface; 140. Second rack;

[0037] 2. Second crossbeam;

[0038] 3. Support columns;

[0039] 4. Pipeline; 41. External expansion section;

[0040] 5. Foundation; 51. Spacer block;

[0041] 6. Slings. Detailed Implementation

[0042] Based on the above-described structural features of this application, the implementation methods of this application will be further described as follows:

[0043] Reference Figures 1-3 This embodiment provides a pipe hoisting device for a rainwater pipe network, including a first crossbeam 1, a second crossbeam 2, and a vertical support column 3; the first crossbeam 1, the second crossbeam 2, and the vertical support column 3 are arranged in a C-shape. The first crossbeam 1 is placed above the second crossbeam 2, and the first crossbeam 1 and the second crossbeam 2 are arranged in a V-shape. The top end of the vertical support column 3 is vertically fixed to the end of the first crossbeam 1 (e.g., by bolting, welding, or integral fixing), and the bottom end of the vertical support column 3 is vertically fixed to the end of the second crossbeam 2 (e.g., by bolting, welding, or integral fixing).

[0044] Reference Figures 1-3 A insertion gap 10 for accommodating the top of the pipe 4 is provided between the first crossbeam 1 and the second crossbeam 2. The insertion gap 10 has a strip-shaped structure. The upper part of the pipe 4 can be inserted laterally into the insertion gap 10. When lifting machinery (such as a crane or overhead crane) lifts the pipe 4, the top surface of the inner cavity of the pipe 4 presses against the top surface of the second crossbeam 2, thereby lifting the pipe 4.

[0045] Reference Figures 1-3 A lifting ring 101 is provided at the center of the top surface of the first crossbeam 1. The lifting ring 101 is fixedly connected to the first crossbeam 1 (for example, by bolts, by welding, or by an integral connection). The bottom of the lifting cable 6 of the lifting machinery is provided with a hook. The hook is attached to the lifting ring 101, so that the lifting machinery can lift this utility model.

[0046] Reference Figures 3-4 A first counterweight ring 11 and a second counterweight ring 12 are fitted around the outer periphery of the first crossbeam 1; the first counterweight ring 11 and the second counterweight ring 12 are respectively disposed on both sides of the lifting ring 101; the first counterweight ring 11 can slide along the length direction of the first crossbeam 1, thereby changing the lever arm and thus changing the torque (torque = force * lever arm; force is the weight of the first counterweight ring 11, which is a constant; lever arm is the vertical distance between the direction of the weight of the first counterweight ring 11 and the lifting ring 101, which is a variable), so as to change the tilt angle of this utility model (i.e., this utility model). The first counterweight ring 12 can slide along the length of the first crossbeam 1, thereby changing the lever arm and thus the torque (torque = force * lever arm; force is the weight of the second counterweight ring 12, which is a constant; lever arm is the vertical distance between the direction of the weight of the second counterweight ring 12 and the lifting ring 101, which is a variable), so as to change the tilt angle of this utility model (i.e., this utility model rotates around the lifting ring 101), thereby changing the tilt angle of the pipe 4.

[0047] Reference Figure 2 Since the pipe body is usually prefabricated using molds, it has high dimensional accuracy. Therefore, the control of its tilt angle can be achieved in batches: When the first pipe 4 is hoisted by the sling 6 (the end face of the outwardly flared part 41 needs to be in contact with the support column 3), the position of the first counterweight ring 11 and the second counterweight ring 12 is adjusted by personnel (that is, the first counterweight ring 11 and / or the second counterweight ring 12 slide laterally along the first crossbeam 1), thereby adjusting the tilt angle R of the pipe 4 to the required range (refer to...). Figure 2 Within a range of 10 degrees < R < 20 degrees (for example, the user uses a total station to monitor the tilt angle R of pipe 4 in real time), the relative positions of the first counterweight ring 11, the second counterweight ring 12, and the first crossbeam 1 are kept unchanged; then the pipe 4 is placed on the foundation 5 (the pad 51); then when subsequent pipes of the same model are lifted by this utility model, they can automatically tilt to the required range, without the need for the user to manually adjust the tilt angle of each pipe 4 individually (within the range of 10 degrees < R < 20 degrees). Figure 2 Taking the perspective shown as an example, in traditional technology, it is necessary for personnel to manually press down on the right end of pipe 4 or manually lift the right end of pipe 4 upwards to achieve batch standardized operation, which has higher control precision and can reduce the number of manual adjustment steps to improve construction efficiency.

[0048] Reference Figures 2-4 The top surface of the first crossbeam 1 is provided with a first limiting surface 13 and a second limiting surface 14. The top surface of the inner cavity of the first counterweight ring 11 is provided with a third limiting surface 111, which can press against the first limiting surface 13. The third limiting surface 111 can selectively press against different positions of the first limiting surface 13 to achieve limiting (using the weight of the first counterweight ring 11 to achieve pressing), thereby avoiding unnecessary sliding of the first counterweight ring 11 and thus preventing the balance from being disrupted, so as to stabilize the tilt angle of this utility model and the pipeline 4. The top surface of the inner cavity of the second counterweight ring 12 is provided with a fourth limiting surface 121, which can press against the second limiting surface 14. The fourth limiting surface 121 can selectively press against different positions of the second limiting surface 14 to achieve limiting (using the weight of the second counterweight ring 12 to achieve pressing), thereby avoiding unnecessary sliding of the second counterweight ring 12 and thus preventing the balance from being disrupted, so as to stabilize the tilt angle of this utility model and the pipeline 4.

[0049] Reference Figures 5-9The first limiting surface 13 has a rack-shaped structure, and the third limiting surface 111 has a rack-shaped structure and can be adapted to mesh with the first limiting surface 13, thereby increasing the sliding friction between the first limiting surface 13 and the third limiting surface 111, thus achieving the limiting between the first limiting surface 13 and the third limiting surface 111, and thus achieving the limiting between the first counterweight ring 11 and the first crossbeam 1. The third limiting surface 111 has a rack-shaped structure, and the fourth limiting surface 121 has a rack-shaped structure and can be adapted to mesh with the second limiting surface 14, thereby increasing the sliding friction between the second limiting surface 14 and the fourth limiting surface 121, thus achieving the limiting between the second limiting surface 14 and the fourth limiting surface 121, and thus achieving the limiting between the second counterweight ring 12 and the first crossbeam 1.

[0050] Refer to 4 and Figure 5 The first limiting surface 13 and the second limiting surface 14 are respectively located on both sides of the lifting ring 101, thereby supporting the first counterweight ring 11 and the second counterweight ring 12 respectively.

[0051] Refer to 4 and Figure 5 The second counterweight ring 12 is placed between the lifting ring 101 and the upright column 3, so the upright column 3 can laterally stop the second counterweight ring 12, thereby preventing the second counterweight ring 12 from falling off the end of the first crossbeam 1. The end of the first crossbeam 1 away from the upright column 3 is provided with an end plate 102, which is used to stop the first counterweight ring 11 and prevent the first counterweight ring 11 from falling off the end of the first crossbeam 1.

[0052] Refer to 4 and Figure 5 The end plate 102 is detachably connected to the first crossbeam 1 (e.g., detachably connected by bolts); when the end plate 102 is removed, it can be used to replace the first counterweight ring 11. There are multiple first counterweight rings 11, and different first counterweight rings 11 have different masses, so the user can install first counterweight rings 11 of different masses on the first crossbeam 1, thereby bringing different torques, which can then be adapted to hoisting pipes 4 of different types (including size and weight) and make them present the required tilt angle.

[0053] Reference Figure 5 The first crossbeam 1 has a first rack 130 and a second rack 140 fixedly installed on its upper part (for example, by bolts); the first limiting surface 13 is located on the upper surface of the first rack 130, and the second limiting surface 14 is located on the upper surface of the second rack 140.

[0054] Reference Figures 5-7The distance between the top of the first limiting surface 13 and the bottom surface of the first crossbeam 1 is H1, and the distance between the bottom of the third limiting surface 111 and the bottom surface of the inner cavity of the first counterweight ring 11 is h1, and H1-h1>15 mm (the height of a single tooth of the first limiting surface 13 is not higher than 5 mm, and the height of a single tooth of the third limiting surface 111 is not higher than 5 mm). This ensures that when the bottom surface of the first crossbeam 1 and the bottom surface of the inner cavity of the first counterweight ring 11 are in contact with each other (for example, when the user manually lifts the first counterweight ring 11 upward), a first gap 110 is formed between the first limiting surface 13 and the third limiting surface 111, thereby realizing the disengagement of the first limiting surface 13 and the third limiting surface 111 (the first counterweight ring 11 cannot slide when the first limiting surface 13 and the third limiting surface 111 are engaged).

[0055] Reference Figure 5 , Figure 8 and Figure 9 The distance between the top of the second limiting surface 14 and the bottom surface of the first crossbeam 1 is H2, and the distance between the bottom of the fourth limiting surface 121 and the bottom surface of the inner cavity of the second counterweight ring 12 is h2, and H2-h2>15 mm (the height of a single tooth of the second limiting surface 14 is not higher than 5 mm, and the height of a single tooth of the fourth limiting surface 121 is not higher than 5 mm). This ensures that when the bottom surface of the first crossbeam 1 and the bottom surface of the inner cavity of the second counterweight ring 12 are in contact with each other (for example, when the user manually lifts the second counterweight ring 12 upward), a first gap 110 is formed between the second limiting surface 14 and the fourth limiting surface 121, thereby achieving the disengagement of the second limiting surface 14 and the fourth limiting surface 121 (the second counterweight ring 12 cannot slide when the second limiting surface 14 and the fourth limiting surface 121 are engaged).

[0056] Reference Figure 3 The first counterweight ring 11 is positioned by its own weight pressing against the first limiting surface 13, and the second counterweight ring 12 is positioned by its own weight pressing against the second limiting surface 14. When unexpected vibrations occur (unavoidable impacts during construction), the first counterweight ring 11 may bounce up and then fall naturally, potentially changing the relative position of the first counterweight ring 11 and the first crossbeam 1. Similarly, the second counterweight ring 12 may bounce up and fall naturally, potentially changing the relative position of the second counterweight ring 12 and the first crossbeam 1. In this case, personnel need to select a different pipe 4 for hoisting and then attempt to adjust the positions of the first counterweight ring 11 and the second counterweight ring 12 until the tilt angle of the pipe 4 is within the required range, thus achieving position correction of the first counterweight ring 11 and the second counterweight ring 12.

[0057] Reference Figure 3 and Figure 4The bottom surface of the first crossbeam 1 is provided with a lower protrusion 103 near the end of the support column 3. The top surface of the lower protrusion 103 is fixedly connected to the first crossbeam 1 (e.g., by integral fixed connection, by welding fixed connection or by bolt fixed connection), and the side wall is fixedly connected to the support column 3 (e.g., by integral fixed connection, by welding fixed connection or by bolt fixed connection).

[0058] Reference Figure 3 and Figure 4 A stop plate 104 is provided below the first crossbeam 1. The stop plate 104 includes a straight plate portion 1041 and an inclined plate portion 1042 that are fixedly connected to each other (e.g., by integral fixed connection, by welding fixed connection, or by bolt fixed connection). The bottom surface of the straight plate portion 1041 is coplanar with the bottom surface of the lower protrusion 103. During the process of inserting the pipe 4 into the insertion gap 10, the end face of the outward expansion portion 41 can smoothly pass through the junction of the straight plate portion 1041 and the lower protrusion 103 (i.e., achieve smooth transition) without hitting the bottom end of the side wall of the lower protrusion 103 (away from the direction of the support column 3), thereby avoiding the problem of impact damage to the outward expansion portion 41 and improving the construction quality.

[0059] Reference Figure 3 and Figure 4 One end of the straight plate portion 1041 is fixedly connected to the side wall of the lower protrusion 103 (e.g., by bolt or by welding), and the other end is fixedly connected to the bottom end of the inclined plate portion 1042 (e.g., by bolt or by welding); the top end of the inclined plate portion 1042 is fixedly connected to the end of the bottom surface of the first crossbeam 1 away from the lower protrusion 103 (e.g., by bolt or by welding).

[0060] Reference Figure 3 and Figure 4 Since both the first counterweight ring 11 and the second counterweight ring 12 are located above the straight plate portion 1041, during the process of inserting the pipe 4 into the insertion gap 10, it is possible to avoid the outer expansion portion 41 from colliding with the first counterweight ring 11 / second counterweight ring 12, thereby avoiding impact damage to the pipe 4, avoiding unnecessary displacement of the first counterweight ring 11 / second counterweight ring 12, and improving construction quality.

[0061] Reference Figure 3 and Figure 4 A sliding gap 1040 is provided between the top surface of the straight plate 1041 and the bottom surface of the first crossbeam 1. The bottom of the first counterweight ring 11 is placed in the sliding gap 1040 and can slide along the length direction of the sliding gap 1040. The bottom of the second counterweight ring 12 is placed in the sliding gap 1040 and can slide along the length direction of the sliding gap 1040.

[0062] Reference Figure 3 and Figure 4The straight plate 1041 is set parallel to the first crossbeam 1; the straight plate 1041 is set parallel to the second crossbeam 2; the height of the insertion gap 10 is a constant value, thereby realizing the insertion and withdrawal of the pipe 4 without being blocked; the height of the sliding gap 1040 is a constant value, thereby realizing the smooth sliding of the first counterweight ring 11 and the second counterweight ring 12 without being blocked.

[0063] The insertion gap 10 and the sliding gap 1040 are respectively located on the upper and lower sides of the straight plate 1041, thereby avoiding the problem of the pipe 4 hitting the first counterweight ring 11 and the second counterweight ring 12 when it is inserted into the insertion gap 10.

[0064] Reference Figure 3 and Figure 4 The upper surface of the second crossbeam 2 is provided with a friction layer (e.g., a rubber layer, which is fixedly connected to the second crossbeam 2 by bolts). The upper surface of the friction layer is provided with friction texture, thereby increasing the friction with the support on the top surface of the inner cavity of the pipe 4, improving the hoisting stability, and preventing the pipe 4 from slipping off the second crossbeam 2.

[0065] The first counterweight ring 11 and the second counterweight ring 12 are both made of iron-containing materials (such as No. 45 steel), which gives them a large weight, enabling them to be stably pressed against the first limiting surface 13 and the second limiting surface 14 respectively, and avoiding unnecessary slippage.

[0066] Construction steps: ① Use a transport vehicle to load the prefabricated pipe 4 and transport the pipe 4 from the prefabrication plant to the construction site; ② Insert the second crossbeam 2 laterally into the inner cavity of the pipe 4 until the end face of the outward expansion 41 abuts against the side wall of the support column 3; ③ Use lifting machinery to tighten and lift the pipe 4 from the truck bed of the transport vehicle; during the process, under the action of the first counterweight ring 11 and the second counterweight ring 12, the present invention and the lifted pipe 4 automatically tilt to the required angle (refer to...). Figure 2 ); ④ The lifting machinery moves the present invention and the pipe 4 above the foundation 5, and makes the lowered end of the lifted pipe 4 close to the outer expansion 41 of the pipe 4 already placed on the pad 51 (see reference). Figure 1 ); ⑤ The user manually pushes the suspended pipe 4 close to the end of the support column 3, so that the lowered end of the suspended pipe 4 is inserted into the outer expansion 41 of the pipe 4 already placed on the pad 51; ⑥ The lifting machinery lowers the sling 6, so that the suspended pipe 4 close to the end of the support column 3 is slowly lowered until the suspended pipe 4 is gradually pressed against the pad 51 (during the process, the user keeps manually pushing the suspended pipe 4 so that the suspended pipe 4 and the pipe 4 already placed on the pad 51 are as close to each other as possible); ⑦ The second crossbeam 2 is pulled out from the inner cavity of the pipe 4.

[0067] By sliding the first counterweight ring 11 and the second counterweight ring 12 on the first crossbeam 1, the torque borne by both sides of the utility model is changed, thereby adjusting the tilt angle of the pipe 4. After the tilt angle of the first pipe 4 is adjusted, the relative positions of the first crossbeam 1, the first counterweight ring 11 and the second counterweight ring 12 remain unchanged. Then, the utility model is used to hoist subsequent pipes 4 of the same type. When the subsequent pipes 4 are hoisted, they can automatically rotate to the required tilt angle without the need for manual adjustment, thereby simplifying the construction steps and improving construction efficiency. At the same time, it enables batch standardized operation and has high adjustment accuracy (if the tilt angle of the pipe 4 is too large, it will slip off the hoist; if the tilt angle of the pipe 4 is too small, it will rub against the pad 51).

[0068] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", 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 utility model 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 limitations on this utility model.

[0069] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0070] In conclusion, for those skilled in the art, any changes, modifications, substitutions, or variations made to this utility model based on its guidance, without departing from its principles and spirit, shall still fall within the protection scope of this utility model.

Claims

1. A pipe hoisting device for rainwater pipe networks, characterized in that: It includes a first crossbeam (1), a second crossbeam (2), and a vertical support column (3); the first crossbeam (1), the second crossbeam (2), and the vertical support column (3) are arranged in a C-shape; The first crossbeam (1) is placed above the second crossbeam (2), and there is an insertion gap (10) between the first crossbeam (1) and the second crossbeam (2) for accommodating the top of the pipe (4); the top of the support column (3) is fixedly connected to the end of the first crossbeam (1), and the bottom of the support column (3) is fixedly connected to the end of the second crossbeam (2); A lifting ring (101) is provided at the center of the top surface of the first crossbeam (1); a first counterweight ring (11) and a second counterweight ring (12) are fitted around the outer periphery of the first crossbeam (1); the first counterweight ring (11) and the second counterweight ring (12) are respectively located on both sides of the lifting ring (101); the first counterweight ring (11) can slide along the length direction of the first crossbeam (1) to change the inclination angle of the pipe (4); the second counterweight ring (12) can slide along the length direction of the first crossbeam (1) to change the inclination angle of the pipe (4); The top surface of the first crossbeam (1) is provided with a first limiting surface (13) and a second limiting surface (14), and the top surface of the inner cavity of the first counterweight ring (11) is provided with a third limiting surface (111), which can be pressed against the first limiting surface (13); the top surface of the inner cavity of the second counterweight ring (12) is provided with a fourth limiting surface (121), which can be pressed against the second limiting surface (14).

2. The pipe hoisting device for rainwater pipe networks according to claim 1, characterized in that: The first limiting surface (13) has a rack-shaped structure, the third limiting surface (111) has a rack-shaped structure and can be adapted to mesh with the first limiting surface (13); the third limiting surface (111) has a rack-shaped structure, and the fourth limiting surface (121) has a rack-shaped structure and can be adapted to mesh with the second limiting surface (14).

3. The pipe hoisting device for rainwater pipe networks according to claim 2, characterized in that: The first limiting surface (13) and the second limiting surface (14) are respectively located on both sides of the lifting ring (101).

4. The pipe hoisting device for rainwater pipe networks according to claim 3, characterized in that: The second counterweight ring (12) is placed between the lifting ring (101) and the support column (3); the end of the first crossbeam (1) away from the support column (3) is provided with an end plate (102), which is used to stop the first counterweight ring (11).

5. The pipe hoisting device for rainwater pipe networks according to claim 4, characterized in that: The first crossbeam (1) is fixedly mounted with a first rack (130) and a second rack (140); the first limiting surface (13) is located on the upper surface of the first rack (130), and the second limiting surface (14) is located on the upper surface of the second rack (140).

6. The pipe hoisting device for rainwater pipe networks according to claim 5, characterized in that: The bottom surface of the first crossbeam (1) is provided with a lower protrusion (103) near the end of the support column (3). The top surface of the lower protrusion (103) is fixedly connected to the first crossbeam (1), and the side wall is fixedly connected to the support column (3).

7. The pipe hoisting device for rainwater pipe networks according to claim 6, characterized in that: A stop plate (104) is provided below the first crossbeam (1). The stop plate (104) includes a straight plate part (1041) and an inclined plate part (1042) that are fixedly connected to each other. The bottom surface of the straight plate part (1041) is coplanar with the bottom surface of the lower protrusion (103).

8. The pipe hoisting device for rainwater pipe networks according to claim 7, characterized in that: One end of the straight plate (1041) is fixedly connected to the side wall of the lower protrusion (103), and the other end is fixedly connected to the bottom end of the inclined plate (1042); the top end of the inclined plate (1042) is fixedly connected to the end of the bottom surface of the first crossbeam (1) away from the lower protrusion (103).

9. The pipe hoisting device for rainwater pipe networks according to claim 8, characterized in that: The first counterweight ring (11) and the second counterweight ring (12) are both located above the straight plate (1041); a sliding gap (1040) is provided between the top surface of the straight plate (1041) and the bottom surface of the first crossbeam (1), the bottom of the first counterweight ring (11) is placed in the sliding gap (1040), and the bottom of the second counterweight ring (12) is placed in the sliding gap (1040).

10. The pipe hoisting device for rainwater pipe networks according to claim 9, characterized in that: The straight plate section (1041) is arranged parallel to the first crossbeam (1); the straight plate section (1041) is arranged parallel to the second crossbeam (2).

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