Steel skeleton plastic composite electric smelting sleeve lifting appliance

Abstract

The utility model discloses a steel skeleton plastic composite electric smelting sleeve lifting appliance, which relates to the field of electric smelting sleeve lifting tools, is matched with a positioning pin of an electric smelting sleeve for use, and comprises a lifting plate, two positioning grooves symmetrically arranged at the bottoms of two sides of the lifting plate and matched with the positioning pin in an inserting manner, and positioning components arranged in the positioning grooves, so that the positioning pin can be positioned on the lifting plate. The locking assembly is arranged between the positioning assembly and the positioning pin, detachable connection of the lifting plate and the positioning pin can be achieved, and the lifting hole is formed in the middle of the lifting plate; the problems that in an existing hoisting mode, products are prone to deformation, operation is complex, hoisting point balance is poor, labor intensity is large, and potential safety hazards exist are solved, safe, efficient and accurate hoisting of the steel skeleton plastic composite electric smelting sleeve with the specification of DN700 or above is achieved, and product quality and construction efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of electrofusion sleeve lifting tools, specifically a steel-framed plastic composite electrofusion sleeve lifting tool. Background Technology

[0002] The steel-framed plastic composite electrofusion series electrofusion sleeve products with specifications of DN700 and above are a new type of electrofusion sleeve products. Currently, due to the lack of special lifting tools, the semi-finished product demolding, post-wiring finished product processing, and on-site installation are still carried out by axially passing the sling through the inner wall or radially binding the sling to the outer wall.

[0003] When using slings to axially pass through the inner wall for hoisting, the large diameter of electrofusion sleeves of DN700 and above will cause stress on the inner wall of the pipe during hoisting. This can easily cause deformation at the pure plastic ends of the electrofusion sleeve, resulting in dimensional deviations in the electrofusion sleeve. In subsequent welding operations, this can lead to inaccurate alignment of the welded parts, affecting the welding quality.

[0004] During the post-wiring processing and on-site installation, the radial binding outer wall hoisting method is adopted. This method requires manual binding and fixing of the slings around the outer wall of the electrofusion sleeve. Due to the lack of scientific and reasonable hoisting point design, the balance of the hoisting points is difficult to control, which makes the electrofusion sleeve easy to sway during hoisting, increasing the difficulty and risk of hoisting. At the same time, the whole operation process is complicated and labor-intensive. Utility Model Content

[0005] The purpose of this utility model is to provide a steel-framed plastic composite electrofusion sleeve lifting tool to solve the problems of easy product deformation, complicated operation, poor balance of lifting points, high labor intensity and safety hazards in existing lifting methods. It enables safe, efficient and precise lifting of steel-framed plastic composite electrofusion sleeves with DN700 and above specifications, thereby improving product quality and construction efficiency.

[0006] The above-mentioned optimized structure of this utility model is achieved through the following technical solution: a steel-framed plastic composite electrofusion sleeve lifting device, used in conjunction with the positioning pin of the electrofusion sleeve, including a lifting plate;

[0007] Two positioning slots are symmetrically arranged on the bottom of both sides of the hanging plate and are engaged with the positioning pins.

[0008] A positioning component is provided in the positioning groove, which can realize the positioning pin positioning on the hanging plate;

[0009] A locking component is provided between the positioning component and the positioning pin, which enables a detachable connection between the hanging plate and the positioning pin;

[0010] The lifting hole is located in the middle of the lifting plate.

[0011] In some embodiments, the locking assembly includes a locking lever that passes through the locating pin and the locating assembly;

[0012] A locking nut, which is screwed into the locking rod.

[0013] In some embodiments, the positioning component includes a positioning ring disposed within the positioning groove, and the positioning ring is engaged with the positioning pin.

[0014] A locking groove is provided on the positioning ring, and the locking component is provided through the locking groove.

[0015] In some embodiments, the positioning component further includes a supporting half-groove disposed at the bottom of the locking groove, and the locking rod is disposed within the supporting half-groove.

[0016] In some embodiments, a rubber washer is also included, which is disposed at the bottom of the hanging plate and is coaxially provided with the positioning pin.

[0017] In some embodiments, the positioning groove and the positioning pin are in transition fit.

[0018] In some embodiments, a clearance groove is also included, which is disposed in the middle of the hanging plate.

[0019] In some embodiments, the axes of symmetry of the two positioning slots are inclined, and the intersection of the axes of symmetry of the two positioning slots is located above the lifting hole.

[0020] In summary, this utility model has the following beneficial effects:

[0021] This invention connects the composite electrofusion sleeve to the locating pin on its outer wall and then to the lifting equipment, thus achieving the connection between the outer wall of the composite electrofusion sleeve and the lifting equipment. By setting the lifting point as the locating pin on the outer wall of the composite electrofusion sleeve, the composite electrofusion sleeve is not affected by external forces during lifting, effectively avoiding the problem of deformation of the pure plastic positions at both ends of the product caused by stress applied to the inner wall of the pipe by the traditional axial lifting method through the inner wall. This enables safe, efficient, and precise lifting of steel-framed plastic composite electrofusion sleeves of DN700 and above, improving product quality and ensuring the quality of subsequent welding construction. Simultaneously, the two symmetrically arranged locating slots improve the balance of the lifting point when using this invention for lifting, thereby preventing swaying of the electrofusion sleeve during lifting. The connection between the composite electrofusion sleeve and the lifting device is achieved by a locking rod passing through the corresponding hole and locking slot of the locating pin. The connection method is simple and requires minimal labor. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the connection structure between Embodiment 1 of this utility model and the positioning pin;

[0023] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of the present invention with the locking component removed;

[0024] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of the present invention with the locking component removed;

[0025] Figure 4 This is a schematic diagram of the structure of embodiment 3 of the present invention, which removes the locking component.

[0026] In the diagram: 1. Hanging plate; 2. Positioning groove; 3. Positioning component; 31. Positioning ring; 32. Locking groove; 33. Supporting half groove; 4. Locking component; 41. Locking rod; 42. Locking nut; 5. Lifting hole; 6. Clearance groove; 7. Positioning pin. Detailed Implementation

[0027] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. 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.

[0028] Example 1:

[0029] refer to Figure 1-2 A steel-framed plastic composite electrofusion sleeve lifting device, used in conjunction with the positioning pin 7 of the electrofusion sleeve, includes a lifting plate 1, two positioning slots 2, a positioning component 3, a locking component 4, and a lifting hole 5. The lifting plate 1 is the main structure of the lifting device, which can support and connect various components. Its shape and size are designed according to actual lifting requirements. The two positioning slots 2 are symmetrically located on both sides of the bottom of the lifting plate 1. Their shape and size are adapted to the positioning pin 7 of the electrofusion sleeve, and can be inserted and engaged with the positioning pin 7 to achieve initial positioning of the electrofusion sleeve and the lifting device. The positioning component 3 is located in the positioning slot 2, which can realize the positioning of the positioning pin 7 on the lifting plate 1 to ensure accurate positioning of the lifting device and the electrofusion sleeve. The locking component 4 is located between the positioning component 3 and the positioning pin 7, which can realize the detachable connection between the lifting plate 1 and the positioning pin 7 to ensure a firm connection between the lifting device and the electrofusion sleeve during the lifting process. The lifting hole 5 is located in the middle of the lifting plate 1 and can be connected to the hook of lifting equipment such as a crane to realize the fixation of the lifting device and the lifting equipment.

[0030] In some embodiments, the locking assembly 4 includes a locking rod 41 and a locking nut 42. The locking rod 41 passes through the positioning pin 7 and the positioning assembly 3. The locking nut 42 is screwed into the locking rod 41 to achieve a detachable connection between the lifting plate 1 and the positioning pin 7. When the locking rod 41 is inserted and screwed into the locking nut 42, it can restrict the movement of the positioning pin 7 in the positioning groove 2, so that the lifting device is firmly connected to the electrofusion sleeve, ensuring the safety and reliability of the lifting process.

[0031] In some embodiments, the positioning component 3 includes a positioning ring 31 and a locking groove 32. The positioning ring 31 is disposed in the positioning groove 2 and is inserted into the positioning pin 7 to further position and guide the positioning pin 7. The locking groove 32 is disposed on the positioning ring 31 and a locking component 4 is provided through the locking groove 32 to provide an installation position for the locking component 4.

[0032] In some embodiments, the positioning component 3 further includes a supporting half groove 33, which is disposed at the bottom of the locking groove 32. A locking rod 41 is provided in the supporting half groove 33. The supporting half groove 33 can support the locking rod 41, thereby increasing the contact area between the positioning component 3 and the locking rod 41 and thus enhancing the stability of the lock.

[0033] In some embodiments, a rubber washer is also included, which is disposed at the bottom of the lifting plate 1 and has a locating pin 7 coaxially disposed thereon. The rubber washer can increase the friction between the lifting device and the electrofusion sleeve, prevent the lifting device from sliding during the lifting process, and at the same time protect the surface of the electrofusion sleeve, avoiding wear caused by direct contact between the lifting device and the sleeve.

[0034] In some embodiments, the positioning groove 2 and the positioning pin 7 are transitionally fitted, which can ensure that the positioning groove 2 and the positioning pin 7 can fit tightly and are easy to install and disassemble.

[0035] The specific working principle is as follows:

[0036] When using the steel frame plastic composite electrofusion sleeve lifting tool for lifting operations, first move the lifting plate of the lifting tool above the steel frame plastic composite electrofusion sleeve, align the positioning grooves on both sides of the bottom of the lifting plate 1 with the positioning pins 7 on the electrofusion sleeve, slowly lower the lifting tool, and use the insertion and cooperation between the positioning groove 2 and the positioning pin 7 to make the positioning pin 7 insert into the positioning groove 2. Through the insertion and cooperation between the positioning ring 31 and the positioning pin 7, the positioning pin 7 is accurately positioned.

[0037] Next, the locking rod 41 is passed through the corresponding hole and locking groove 32 of the positioning pin 7 and placed in the supporting half groove 33, so that the locking rod 41 firmly fixes the positioning pin 7 on the lifting device, completing the detachable connection between the lifting plate 1 and the positioning pin 7, and ensuring that the connection between the lifting device and the electrofusion sleeve is stable.

[0038] Then, pass the hook of the hoisting equipment through the hoisting hole 5 and connect it to the lifting device, and start the hoisting equipment to lift.

[0039] After the electrofusion sleeve reaches the designated position and is placed stably, remove the hook of the lifting equipment from the lifting hole 5. Simply pull the locking rod 41 out of the positioning pin 7 and the locking groove 32 to release the connection between the lifting plate 1 and the positioning pin 7, lift the lifting device upward to separate the positioning groove 2 from the positioning pin 7, and complete the disassembly of the lifting device and the electrofusion sleeve.

[0040] Example 2:

[0041] refer to Figure 3 The difference between this embodiment and embodiment 1 is that, in order to enable this lifting tool to adapt to the reducing tee composite electrofusion sleeve, a clearance groove 6 is provided in the middle of the lifting plate 1. A vertical pipe is provided in the clearance groove 6. The vertical pipe is vertically connected to two horizontal pipes. Through the clearance groove 6, clearance space can be provided for the vertical pipe to prevent mutual interference, thereby realizing the connection between the lifting tool and the positioning pins 7 on the two horizontal pipes, and realizing the lifting of the reducing tee composite electrofusion sleeve.

[0042] Example 3:

[0043] refer to Figure 4 The difference between this embodiment and embodiment 1 is that, in order to enable this lifting tool to adapt to the elbow composite electrofusion sleeve, the bottom surface of the lifting plate 1 is attached to the surface of the elbow composite electrofusion sleeve, the symmetrical axes of the two positioning grooves 2 are inclined, and the intersection of the symmetrical axes of the two positioning grooves 2 is located above the lifting hole 5. The symmetrical axes of the two positioning grooves 2 are perpendicular to the central axis of the two pipe ends, thereby improving the stability of the process of lifting the elbow composite electrofusion sleeve.

[0044] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A steel-framed plastic composite electrofusion sleeve lifting device, used in conjunction with the positioning pin (7) of the electrofusion sleeve, characterized in that: Including the hanging board (1); Two positioning slots (2) are symmetrically arranged on the bottom of both sides of the hanging plate (1) and are inserted into the positioning pin (7); Positioning component (3), which is located in the positioning groove (2), can realize the positioning of the positioning pin (7) on the hanging plate (1); Locking component (4), which is located between the positioning component (3) and the positioning pin (7), can realize the detachable connection between the hanging plate (1) and the positioning pin (7); The hoisting hole (5) is located in the middle of the hoisting plate (1).

2. The steel-framed plastic composite electrofusion sleeve lifting device according to claim 1, characterized in that: The locking component (4) includes a locking rod (41) that passes through the positioning pin (7) and the positioning component (3). Locking nut (42), which is screwed into the locking rod (41).

3. The steel-framed plastic composite electrofusion sleeve lifting device according to claim 2, characterized in that: The positioning component (3) includes a positioning ring (31), which is disposed in the positioning groove (2) and is engaged with the positioning pin (7). The locking groove (32) is located on the positioning ring (31), and the locking component (4) is provided through the locking groove (32).

4. The steel-framed plastic composite electrofusion sleeve lifting device according to claim 3, characterized in that: The positioning component (3) further includes a supporting half groove (33), which is located at the bottom of the locking groove (32), and the locking rod (41) is provided in the supporting half groove (33).

5. The steel-framed plastic composite electrofusion sleeve lifting device according to claim 1, characterized in that: It also includes a rubber washer, which is located at the bottom of the hanging plate (1) and the positioning pin (7) is coaxially provided on the rubber washer.

6. The steel-framed plastic composite electrofusion sleeve lifting device according to claim 1, characterized in that: The positioning groove (2) and the positioning pin (7) are in transition fit.

7. The steel-framed plastic composite electrofusion sleeve lifting device according to claim 1, characterized in that: It also includes a clearance groove (6), which is located in the middle of the hanging plate (1).

8. The steel-framed plastic composite electrofusion sleeve lifting device according to claim 1, characterized in that: The two positioning slots (2) are inclined along their axes of symmetry, and the intersection of the axes of symmetry of the two positioning slots (2) is located above the lifting hole (5).

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