Reinforced concrete pipe hoisting device

Abstract

The utility model relates to the technical field of water supply and drainage, and particularly discloses a reinforced concrete pipe hoisting device which comprises a hoisting belt, a half-thread nut pair is inserted into the lower end of the lifting belt; the half-thread nut pair is sleeved with a vertical pipe; the lower end of the vertical pipe is fixedly connected with a horizontal pipe; the vertical pipe is sleeved with an extrusion plate; the vertical pipes are matched with the extrusion plates to be connected to the two ends of the reinforced concrete pipeline in a sleeving mode, then the two vertical pipes are close to each other through the elastic belts, and therefore when hoisting is not carried out, the two vertical pipes can also be stably connected to the two ends of the reinforced concrete pipeline in a sleeving mode to adapt to the reinforced concrete pipelines with different lengths, and the hoisting belt is hoisted by a crane; and after the reinforced concrete pipeline is accurately placed into the mounting groove, a new pipeline can be hoisted again only by taking down the two vertical pipes along the axis position of the pipeline, so that the reinforced concrete pipeline can be accurately hoisted to the mounting groove with the adaptive size.

Description

Technical Field

[0001] This utility model relates to the field of water supply and drainage technology, specifically a reinforced concrete pipe hoisting device. Background Technology

[0002] Concrete pipes are pipes made of concrete or reinforced concrete, used to transport fluids such as water, oil, and gas. They can be divided into four types: plain concrete pipes, ordinary reinforced concrete pipes, self-stressed reinforced concrete pipes, and prestressed concrete pipes.

[0003] Chinese utility model patent with publication number CN212639695U disclosed on March 2, 2021, a type of lifting claw that uses four lifting claws to grab a cement concrete pipe, and the upward force during the lifting process forms a cross force of the lifting claws, making the whole structure more solid and stable. It consists of a through hole, a sling connecting plate, a hook, a connecting arm, an end connecting shaft, lifting claws, connecting rods, a central shaft, hook bars, and a top connecting shaft. Two sets of lifting claws are rotatably positioned at both ends of the central shaft. Each set of lifting claws consists of two lifting claws, which are divided into a straight rod and an arc-shaped gripper. The two lifting claws in a set intersect, and the intersection point is the connection position of the straight rod and the arc-shaped gripper. A connecting hole is opened on the end where the straight rod and the arc-shaped gripper are connected. The lifting claws are rotatably fitted onto the central shaft through the connecting hole. The lifting claws at both ends of the central shaft correspond one-to-one. Two connecting rods are placed between the two sets of lifting claws, and the two ends of the connecting rods are respectively connected to the arc-shaped grippers of the corresponding two lifting claws.

[0004] However, the above-mentioned publicly disclosed solutions have the following shortcomings: the existing technology clamps the pipe with a gripper and then moves it up and down with the help of a crane. However, this method has a small range of compatibility with pipes of different diameters, and when lowering the pipe, the displacement space when it is spread out to the left and right is large. This makes it impossible to place the pipe on the bottom when placing it in a narrow trench. It needs to be placed in the air, which leads to the danger of the pipe not being aligned and breaking. Utility Model Content

[0005] The purpose of this utility model is to solve the technical problem that the existing technology uses a clamp to hold the pipe and then moves it up and down with the help of a crane. However, this method has a small range of applicability to pipes of different diameters, and when lowering the pipe, the displacement space when it spreads to the left and right is large. This makes it impossible to place the pipe on the bottom when placing it in a narrow trench, and it needs to be placed in the air, which leads to the danger of pipe misalignment and breakage. The present invention provides a reinforced concrete pipe hoisting device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution;

[0007] The present invention discloses a reinforced concrete pipe hoisting device, comprising a sling; a semi-threaded nut assembly inserted into the lower end of the sling; a vertical pipe sleeved on the semi-threaded nut assembly; a horizontal pipe fixed to the lower end of the vertical pipe; an extrusion plate sleeved on the vertical pipe; and an elastic band sleeved on the semi-threaded nut assembly.

[0008] Furthermore, the sling is fitted with a lifting ring.

[0009] Furthermore, the vertical tube is provided with a clearance groove corresponding to the sling.

[0010] The reinforced concrete pipe hoisting device provided by this utility model has the following beneficial effects:

[0011] 1. This utility model uses vertical pipes and extrusion plates to fit around both ends of a reinforced concrete pipe. An elastic band brings the two vertical pipes close to each other, so that even when not being hoisted, the two vertical pipes can be stably fitted around both ends of the reinforced concrete pipe. This adapts to reinforced concrete pipes of different lengths. When the crane lifts the pipe, it can be placed into the bottom of the pipe installation groove. After being accurately placed into the installation groove, the two vertical pipes can be removed along the pipe axis, and new pipes can be hoisted again. This allows for precise hoisting into the installation groove of the appropriate size.

[0012] 2. This utility model changes the friction between the fastener and the vertical pipe by rotating the fastener in both directions, thereby changing the height of the extrusion plate on the vertical pipe. This allows it to adapt to reinforced concrete pipes of different diameters and thicknesses, ensuring stable clamping of the reinforced concrete pipes and making hoisting safer. Attached Figure Description

[0013] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings;

[0014] Figure 1 This is a schematic diagram of the first isometric structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the second isometric structure of this utility model;

[0016] Figure 3 This is a front view structural diagram of the present invention.

[0017] The following are the labels in the diagram: 1. Lifting strap; 2. Semi-threaded nut pair; 3. Vertical tube; 4. Clearance groove; 5. Horizontal tube; 6. Anti-slip sleeve; 7. Extrusion plate; 8. Fastener; 9. Protective plate; 10. Elastic band; 11. Lifting ring. Detailed Implementation

[0018] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0019] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] It should be noted that all directional indications (such as up-down-left-right-forward-backward...) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0021] Please see Figure 1-3 As shown, a reinforced concrete pipe hoisting device includes a sling 1 connected to a crane; a semi-threaded nut pair 2 is inserted into the lower end of the sling 1; a vertical pipe 3 is sleeved on the semi-threaded nut pair 2; a horizontal pipe 5 is fixed to the lower end of the vertical pipe 3; a compression plate 7 is sleeved on the vertical pipe 3; and an elastic band 10 is sleeved on the semi-threaded nut pair 2. The vertical pipe 3, in conjunction with the compression plate 7, is sleeved at both ends of the reinforced concrete pipe. The elastic band 10 then brings the two vertical pipes 3 closer together, so that even when not hoisted, the two vertical pipes 3 can be stably sleeved at both ends of the reinforced concrete pipe, adapting to reinforced concrete pipes of different lengths. This allows the crane to lift the sling 1, thereby lifting the reinforced concrete pipe, which can then be placed at the bottom of the pipe installation groove. After accurately placing it in the installation groove, the two vertical pipes 3 can be removed along the pipe axis, and a new pipe can be hoisted again, allowing for precise hoisting into the installation groove of the appropriate size.

[0022] The sling 1 is fitted with a lifting ring 11, which can be easily connected and fixed to the crane, making the lifting safer and more stable.

[0023] A clearance groove 4 is provided on the vertical pipe 3 corresponding to the sling 1. The clearance groove 4 allows the movement path of the sling 1 to be avoided, making the use of the sling 1 safer.

[0024] A non-slip sleeve 6 is fitted onto the horizontal pipe 5. The non-slip sleeve 6 reduces the pressure on the contact area with the reinforced concrete pipe, thus reducing wear on the pipe. At the same time, it increases friction, making hoisting safer.

[0025] The extrusion plate 7 has a threaded hole for fastener 8. By rotating the fastener 8 in both directions, the friction between the extrusion plate 7 and the vertical pipe 3 can be changed, thereby changing the height of the extrusion plate 7 on the vertical pipe 3. This allows it to adapt to reinforced concrete pipes of different diameters and thicknesses, ensuring that the reinforced concrete pipes can be stably clamped, making hoisting safer.

[0026] A protective plate 9 is fixedly attached to the lower surface of the extrusion plate 7 by a groove. The protective plate 9, made of rubber, prevents wear when the extrusion plate 7 comes into contact with the surface of the pipe and increases the surface friction with the pipe, thereby preventing noise when hoisting reinforced concrete pipes.

[0027] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A reinforced concrete pipe hoisting device characterized by; The utility model provides a half thread nut pair vice, vertical tube, horizontal tube, extrusion plate, elastic band, sling, escape groove, anti -skid cover, fastener and protection plate are arranged on the sling, and the utility model has the advantages of reasonable structure, convenient use, convenient installation and dismounting, and the utility model can be used for the sling of the lifting device, and the utility model can be used for the sling of the lifting device.

2. A reinforced concrete pipe hoisting device according to claim 1, characterised in that: The sling (1) is sleeved with a lifting ring (11).

3. A reinforced concrete pipe hoisting device according to claim 1, characterized in that: The vertical tube (3) is provided with an escape groove (4) corresponding to the sling (1).

4. A reinforced concrete pipe hoisting device according to claim 1, characterized in that: The horizontal tube (5) is sleeved with an anti-skid cover (6).

5. A reinforced concrete pipe hoisting device according to claim 1, characterized in that: The extrusion plate (7) is threaded connected with a fastener (8) on the hole.

6. A reinforced concrete pipe hoisting device according to claim 1, characterized in that: The lower surface of the extrusion plate (7) is grooved and fixed with a protection plate (9).

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