Flange hoisting device

Abstract

The utility model discloses a flange hoisting device, include: main shaft, main shaft upper end is equipped with upper baffle, is equipped with the lifting ring on the upper baffle, main shaft lower extreme is equipped with lower baffle, and the movable sleeve is equipped with in the main shaft middle part, and the clamping part is symmetric and established in the both sides of main shaft, the clamping part includes: connecting rod, and one end of connecting rod is hinged with movable sleeve, and the other end is fixedly connected with clamping arm, and the arc clamping plate is equipped with in clamping arm bottom, and the center of arc clamping plate is concentric with main shaft, and the movable rod is equipped with between clamping arm and lower baffle. The utility model discloses simple structure, convenient operation, only need through the lifting ring and external hoist connection, then through the handle and open arc clamping plate, and the step of flange is clamped, and then hoist pull ring, and under the drive of connecting rod and movable rod, clamping arm is inwards and is folded, and flange is clamped, and arc support board supports flange in the hoisting process, and completes hoisting work, avoids the threat to staff personal safety, improves the security, and greatly improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of lifting device technology, specifically a flange lifting device. Background Technology

[0002] A flange is a type of connecting part. Flange connections are widely used in the connection of various pipe parts due to their advantages such as good sealing performance, stable structure, high strength, ease of use, and low cost.

[0003] In some large-scale transportation projects, a special type of flange is used: large flanges. These flanges are relatively heavy, and their end faces are machined using a vertical lathe. However, moving the flanges to the vertical lathe's machining table is quite strenuous due to their large size, requiring at least two people to handle them simultaneously. This not only consumes the workers' physical strength but also poses a safety hazard if the flanges tip over, as their size increases the risk of collisions and injuries. To address these issues, a flange lifting device is proposed. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned problems and provide a flange lifting device.

[0005] The specific solution of this utility model is: a flange lifting device, comprising: a main shaft, characterized in that: an upper baffle is provided at the upper end of the main shaft, a lifting ring is provided on the upper baffle, a lower baffle is provided at the lower end of the main shaft, a movable sleeve is sleeved in the middle of the main shaft, and clamping parts are symmetrically provided on both sides of the main shaft;

[0006] The clamping part includes: a connecting rod, one end of which is hinged to a movable sleeve and the other end is fixedly connected to a clamping arm. The clamping arm is vertically downward and has an arc-shaped clamping plate at its bottom end. The center of the arc-shaped clamping plate is concentric with the main shaft. A movable rod is provided between the clamping arm and the lower baffle. One end of the movable rod is hinged to the middle of the clamping arm and the other end is hinged to the lower baffle.

[0007] Furthermore, a return spring is also sleeved on the main shaft, with the upper end of the return spring abutting against the movable sleeve and the lower end abutting against the lower baffle.

[0008] Furthermore, the clamping arm is provided with a handle on the outside, which is used to assist in opening the clamping arm.

[0009] Furthermore, the movable sleeve is provided with symmetrical support arms on both sides, and the connecting rod is hinged to the movable sleeve through the support arms.

[0010] Furthermore, the arc-shaped clamping plate includes an arc-shaped surrounding plate, and the arc-shaped surrounding plate is provided with an arc-shaped support plate on the side facing the main shaft.

[0011] This utility model has the following beneficial effects: The utility model has a simple structure and is easy to operate; it only requires connecting to an external lifting device through a lifting ring, then opening the arc-shaped clamping plate through the handle and inserting it into the flange step, then lifting the lifting ring, and then, driven by the connecting rod and the movable rod, the clamping arm retracts inward to clamp the flange. During the lifting process, the arc-shaped support plate lifts the flange to complete the lifting work. When lowering, the return spring pushes the movable sleeve upward to make the clamping arm open outward, thereby releasing the flange. This avoids threats to the personal safety of the workers, improves safety, and greatly improves work efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] In the diagram: 1. Main shaft; 2. Upper baffle; 3. Lower baffle; 4. Lifting ring; 5. Movable sleeve; 501. Support arm; 6. Connecting rod; 7. Clamping arm; 8. Arc-shaped clamping plate; 801. Arc-shaped surrounding plate; 802. Arc-shaped support plate; 9. Movable rod; 10. Return spring; 11. Flange. Detailed Implementation

[0014] 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 a part of the embodiments of the present utility model, and not all of them. 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.

[0015] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0016] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0017] Please refer to Figure 1 A flange 11 lifting device includes: a main shaft 1, characterized in that: an upper baffle 2 is provided at the upper end of the main shaft 1, a lifting ring 4 is provided on the upper baffle 2, a lower baffle 3 is provided at the lower end of the main shaft 1, a movable sleeve 5 is sleeved in the middle of the main shaft 1, and clamping parts are symmetrically provided on both sides of the main shaft 1;

[0018] The clamping part includes: a connecting rod 6, one end of which is hinged to the movable sleeve 5, and the other end is fixedly connected to the clamping arm 7. The clamping arm 7 is vertically downward, and an arc-shaped clamping plate 8 is provided at the bottom end of the clamping arm 7. The center of the arc-shaped clamping plate 8 is concentric with the main shaft 1. A movable rod 9 is provided between the clamping arm 7 and the lower baffle 3. One end of the movable rod 9 is hinged to the middle of the clamping arm 7, and the other end is hinged to the lower baffle 3.

[0019] In this embodiment, a return spring 10 is also sleeved on the main shaft 1. The upper end of the return spring 10 abuts against the movable sleeve 5, and the lower end abuts against the lower baffle 3.

[0020] In this embodiment, the clamping arm 7 is provided with a handle on the outside, which is used to assist in opening the clamping arm 7.

[0021] In this embodiment, the movable sleeve 5 is provided with symmetrical support arms 501 on both sides, and the connecting rod 6 is hinged to the movable sleeve 5 through the support arms 501.

[0022] In this embodiment, the arc-shaped clamping plate 8 includes an arc-shaped surrounding plate 801, and the arc-shaped surrounding plate 801 is provided with an arc-shaped support plate 802 on the side facing the main shaft 1.

[0023] This utility model has the following beneficial effects: The utility model has a simple structure and is easy to operate; it only requires connecting to an external lifting device through the lifting ring 4, then opening the arc-shaped clamping plate 8 through the handle and inserting it into the step of the flange 11, then lifting the lifting ring, and then, driven by the connecting rod 6 and the movable rod 9, the clamping arm 7 retracts inward to clamp the flange 11. During the lifting process, the arc-shaped support plate 802 lifts the flange 11 to complete the lifting work. When lowering, the return spring 10 pushes the movable sleeve 5 upward to make the clamping arm 7 open outward, thereby releasing the flange 11, avoiding threats to the personal safety of the staff, improving safety and greatly improving work efficiency.

Claims

1. A flange lifting device, comprising: A spindle, characterized in that: an upper baffle is provided at the upper end of the spindle, a lifting ring is provided on the upper baffle, a lower baffle is provided at the lower end of the spindle, a movable sleeve is sleeved in the middle of the spindle, and clamping parts are symmetrically provided on both sides of the spindle; The clamping part includes: a connecting rod, one end of which is hinged to a movable sleeve and the other end is fixedly connected to a clamping arm. The clamping arm is vertically downward and has an arc-shaped clamping plate at its bottom end. The center of the arc-shaped clamping plate is concentric with the main shaft. A movable rod is provided between the clamping arm and the lower baffle. One end of the movable rod is hinged to the middle of the clamping arm and the other end is hinged to the lower baffle.

2. The flange lifting device according to claim 1, characterized in that: A return spring is also fitted on the main shaft. The upper end of the return spring abuts against the movable sleeve, and the lower end abuts against the lower baffle.

3. The flange lifting device according to claim 1, characterized in that: The clamping arm is provided with a handle on the outside, which is used to assist in opening the clamping arm.

4. A flange lifting device according to claim 1, characterized in that: The movable sleeve is provided with symmetrical support arms on both sides, and the connecting rod is hinged to the movable sleeve through the support arms.

5. A flange lifting device according to claim 1, characterized in that: The arc-shaped clamp includes an arc-shaped surrounding plate, and the arc-shaped surrounding plate is provided with an arc-shaped support plate on the side facing the main shaft.

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