Safety protection equipment for heavy-load hoisting of mixing station

By designing a lifting frame and adjustment mechanism in the hoisting equipment of the mixing plant, the problem of wear and breakage caused by friction between the wire rope and the hoisted items is solved, thereby improving safety and adaptability to hoisting, and making it suitable for heavy-duty hoisting operations in the mixing plant.

CN224091467UActive Publication Date: 2026-04-07POWERCHINA HUADONG ENG CORP LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-20
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

During use, existing hoisting equipment is prone to wear and breakage due to friction between the wire rope and the hoisted items, posing a safety hazard, especially in heavy-duty hoisting operations at mixing plants.

Method used

A safety protection device including a lifting frame and an adjustment mechanism was designed. The lifting frame is composed of a U-shaped lifting protection component. The adjustment mechanism adjusts the width and length of the lifting frame through an H-shaped adjustment structure to avoid direct contact between the wire rope and the lifted item. The lifting protection plate is equipped with anti-slip blocks and protective grooves to reduce friction.

Benefits of technology

It effectively protects the wire rope, prevents wear and breakage, improves the safety of hoisting operations, and is suitable for hoisting goods of different sizes. It is also easy to operate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of mixing stations, in particular to safety protection equipment for heavy-load hoisting of a mixing station. The utility model aims to provide the safety protection equipment for heavy-load hoisting of the mixing station, which has the characteristics of convenience in use and good safety. According to the technical scheme, the heavy-load hoisting safety protection equipment for the mixing station is characterized by comprising a hoisting frame for hoisting goods and an H-shaped adjusting mechanism for adjusting the width and the length of the hoisting frame; the hoisting frame comprises two U-shaped hoisting protection assemblies which are arranged in parallel; the hoisting protection assembly comprises a pair of L-shaped hoisting protection plates which are symmetrically arranged left and right; the adjusting mechanism comprises a width adjusting structure and two length adjusting structures arranged at the two ends of the width adjusting structure, and each length adjusting structure is connected with the two hoisting protection plates on the same side.
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Description

Technical Field

[0001] This utility model relates to the field of batching plant technology, specifically to a safety protection device for heavy-duty hoisting in a batching plant. Background Technology

[0002] A mixing plant, also known as a batching plant, is a general term for large-scale mechanical equipment used in industrial construction for mixing and other construction work. Mixing plants can be used for the construction of base stabilized soil for highways, urban roads, squares, and airports.

[0003] In the daily production and operation of a mixing plant, heavy-duty hoisting operations are a common and critical part of the process, such as hoisting heavy components like cement silos and sand and gravel bins, as well as transporting large mixing equipment. However, existing hoisting operations have many safety hazards: the wire ropes of hoisting equipment often rub against the objects being hoisted, which can easily cause wear and breakage of the wire ropes, making it highly susceptible to accidents where heavy objects fall. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings in the above-mentioned background technology and provide a safety protection device for heavy-duty hoisting of a mixing plant. This device should be easy to use and have good safety features.

[0005] The technical solution of this utility model is:

[0006] A heavy-duty hoisting safety protection device for a mixing plant, characterized in that: the device includes a hoisting frame for hoisting goods and an H-shaped adjustment mechanism for adjusting the width and length of the hoisting frame;

[0007] The hoisting frame includes two parallel U-shaped hoisting protection components; the hoisting protection components include a pair of L-shaped hoisting protection plates arranged symmetrically from left to right;

[0008] The adjustment mechanism includes a width adjustment structure and two length adjustment structures disposed at both ends of the width adjustment structure, each length adjustment structure being connected to two hoisting protective plates on the same side.

[0009] The outer side of the hoisting protective plate is provided with a protective groove that cooperates with the wire rope; the inner side of the hoisting protective plate is provided with an anti-slip block.

[0010] The length adjustment structure includes an adjustment frame, two slide rods axially slidably positioned at both ends of the adjustment frame, a first bevel gear rotatably positioned in the adjustment frame, two first lead screws rotatably positioned in the adjustment frame and respectively meshing with the slide rods, a second bevel gear simultaneously meshing with the first bevel gear and respectively fixed to the two first lead screws, and a length adjustment knob disposed outside the adjustment frame and coaxially connected to the first bevel gear.

[0011] The hoisting protective plate is fixed to the slide rod of the length adjustment mechanism.

[0012] The width adjustment structure includes a sleeve, a second lead screw that is axially slidably positioned in the sleeve, and a width adjustment knob that is rotatably positioned at the end of the sleeve and engages with the second lead screw.

[0013] The adjusting frame is fixed to the sleeve and the second lead screw respectively.

[0014] In the length adjustment structure, the adjustment frame, slide bar, and first lead screw are arranged coaxially; in the width adjustment structure, the sleeve and second lead screw are arranged coaxially; the adjustment frames of the two length adjustment structures are arranged in parallel; the adjustment frame of the length adjustment structure and the sleeve of the width adjustment structure are arranged perpendicularly.

[0015] The beneficial effects of this utility model are:

[0016] 1. This utility model, by inserting the hoisting wire rope into the hoisting frame and then using the hoisting frame to lift the goods, can avoid the wire rope from directly contacting the goods, thereby effectively protecting the wire rope and preventing it from breaking due to frequent friction, thus improving the safety of hoisting operations.

[0017] 2. This utility model uses an adjustment mechanism to adjust the width and length dimensions of the lifting frame, making it suitable for lifting operations of goods of different sizes and very convenient to operate. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a cross-sectional schematic diagram of the length adjustment structure of this utility model.

[0021] Figure 3 This is a cross-sectional schematic diagram of the width adjustment structure of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Lifting protective plate, 1-1. Protective groove, 2. Adjusting frame, 2-1. Cavity, 2-2. Slide groove, 2-3. Slide rod guide groove, 3. Slide rod, 4. First lead screw, 5. Rotating rod, 6. First bevel gear, 7. Second bevel gear, 8. Length adjustment knob, 9. Sleeve, 9-1. T-shaped groove, 9-2. Lead screw guide groove, 10. Second lead screw, 11. Width adjustment knob, 12. T-shaped slider, 13. Slide rod slider, 14. Lead screw slider, 15. Anti-slip block. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0025] This utility model embodiment discloses a safety protection device for heavy-duty hoisting in a mixing plant.

[0026] like Figure 1-3 As shown, the heavy-duty hoisting safety protection equipment for this mixing plant includes a hoisting frame and an adjustment mechanism. The hoisting frame is used to hoist goods (such as mixing plants). The adjustment mechanism is used to adjust the width and length of the hoisting frame. Adjusting the width allows the hoisting frame to accommodate goods of different widths (mixing plants of different outer diameters), and adjusting the length allows the hoisting frame to accommodate goods of different lengths (mixing plants of different heights).

[0027] The lifting frame includes four lifting protective plates 1. The lifting protective plates are paired up, with each pair forming a lifting protective assembly. Each lifting protective assembly is U-shaped, including a pair of symmetrically arranged lifting protective plates, with the two assemblies arranged in parallel. Each lifting protective assembly serves as a lifting point, and the entire heavy-duty lifting safety protection equipment for the mixing plant has two lifting points.

[0028] The lifting protective plate is L-shaped. The inner side (the side facing the cargo) of the lifting protective plate is provided with several anti-slip blocks 15. These anti-slip blocks are used to increase friction and prevent the cargo from slipping during lifting. The anti-slip blocks are made of rubber blocks. The outer side (the side facing away from the cargo) of the lifting protective plate is provided with protective grooves 1-1. These grooves are arranged on the entire outer side of the lifting protective plate and are also L-shaped. The right-angle positions of the L-shapes of the protective grooves are made with smooth, rounded chamfers to reduce friction on the wire rope and extend its service life.

[0029] During hoisting, the goods are placed in the hoisting frame. The width of the hoisting protective components (i.e., the distance between the two hoisting protective plates) is adapted to the width of the goods, and the distance between the two U-shaped hoisting protective components is adapted to the length of the goods. The center of gravity of the goods is kept between the two hoisting protective components. The wire rope is inserted into the protective groove, and the wire rope lifts the goods through the hoisting protective plates. Therefore, the wire rope will not come into contact with the goods and will not rub against them, thus extending the service life of the wire rope and effectively ensuring the safety of the hoisting operation.

[0030] The adjustment mechanism includes a width adjustment structure and a length adjustment structure. The width adjustment structure is used to adjust the width of the hoisting frame (the distance between the two hoisting protective plates in each hoisting protective assembly), and the length adjustment structure is used to adjust the length of the hoisting frame (the distance between the two hoisting protective assemblies).

[0031] The adjustment mechanism is H-shaped, with one width adjustment structure and two length adjustment structures. The width adjustment structure is connected to two length adjustment structures, which are respectively located at both ends of the width adjustment structure. Each length adjustment structure is connected to two hoisting protective plates on the same side.

[0032] Each length adjustment structure includes an adjustment frame 2, two slide rods 3, a first bevel gear 6, two first lead screws 4, two second bevel gears 7, and a length adjustment knob 8. Specifically: the adjustment frame has a cavity 2-1 in the middle, and slide grooves 2-2 on both sides, with the two ends of the slide grooves connecting the cavity to the end face of the adjustment frame; one end of each slide rod is fixed to the lifting protective plate, and the other end of the slide rod has an internal thread and is slidably positioned in the slide groove; the inner wall of the slide groove has a slide rod guide groove 2-3, and the slide rod has a slide rod slider 13 that slidably engages with the slide rod guide groove to guide the axial sliding of the slide rod; the first bevel gear and the two second bevel gears are rotatably positioned in the cavity, and the first bevel gear simultaneously meshes with the two second bevel gears; each second bevel gear... The gear is connected to the slide rod via a first lead screw; the first lead screw is rotatably positioned in the slide groove, one end of the first lead screw meshes with the internal thread of the slide rod, and the other end of the first lead screw is coaxially connected to the second bevel gear; the length adjustment knob is rotatably positioned in the middle of the adjustment frame and is coaxially connected to the first bevel gear via a rotating rod 5; the adjustment frame, slide rod, and first lead screw are arranged coaxially; the adjustment frames of the two length adjustment structures are arranged in parallel; rotating the length adjustment knob can drive the two slide rods to extend outward or retract inward into the adjustment frame simultaneously, thereby realizing the length adjustment of the hoisting frame.

[0033] The width adjustment structure includes a sleeve 9, a second lead screw 10, and a width adjustment knob 11. Specifically: one end of the sleeve is fixed to the middle of one of the adjustment frames, one end of the second lead screw is fixed to the middle of the other adjustment frame, and the other end of the second lead screw is axially slidably positioned within the sleeve; the inner wall of the sleeve has a lead screw guide groove 9-2, and the other end of the second lead screw has a lead screw slider 14 that slides with the lead screw guide groove to guide the axial sliding of the second lead screw; the width adjustment knob is rotatably positioned at the other end of the sleeve (near the end of the second lead screw), and the width adjustment knob has an internal thread. The second lead screw passes through the width adjustment knob and then extends into the sleeve, engaging with the second lead screw; the other end of the sleeve has a T-groove 9-1, and the width adjustment knob has a T-shaped slider 12 that slides with the T-groove; the sleeve and the second lead screw are arranged coaxially; the adjustment frame is arranged perpendicular to the sleeve; rotating the width adjustment knob drives the second lead screw to extend or retract from the sleeve, thereby achieving width adjustment of the lifting frame.

[0034] The ends of the adjusting frame and the sleeve are also provided with limiting plates to control the sliding stroke of the slide rod and the second lead screw.

[0035] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A safety protection device for heavy-duty hoisting at a mixing plant, characterized in that: The equipment includes a lifting frame for hoisting goods and an H-shaped adjustment mechanism for adjusting the width and length of the lifting frame; The hoisting frame includes two parallel U-shaped hoisting protection components; the hoisting protection components include a pair of L-shaped hoisting protection plates (1) arranged symmetrically on the left and right sides; The adjustment mechanism includes a width adjustment structure and two length adjustment structures disposed at both ends of the width adjustment structure, each length adjustment structure being connected to two hoisting protective plates on the same side.

2. The heavy-duty hoisting safety protection equipment for a mixing plant according to claim 1, characterized in that: The outer side of the hoisting protective plate is provided with a protective groove (1-1) that cooperates with the wire rope; the inner side of the hoisting protective plate is provided with an anti-slip block (15).

3. The heavy-duty hoisting safety protection equipment for a mixing plant according to claim 2, characterized in that: The length adjustment structure includes an adjustment frame (2), two slide rods (3) axially slidably positioned at both ends of the adjustment frame, a first bevel gear (6) rotatably positioned in the adjustment frame, two first lead screws (4) rotatably positioned in the adjustment frame and respectively meshing with the slide rods, a second bevel gear (7) simultaneously meshing with the first bevel gear and respectively fixed to the two first lead screws, and a length adjustment knob (8) disposed outside the adjustment frame and coaxially connected to the first bevel gear.

4. The heavy-duty hoisting safety protection equipment for a mixing plant according to claim 3, characterized in that: The hoisting protective plate is fixed to the slide rod of the length adjustment mechanism.

5. The heavy-duty hoisting safety protection equipment for a mixing plant according to claim 4, characterized in that: The width adjustment structure includes a sleeve (9), a second lead screw (10) that is axially slidably positioned in the sleeve, and a width adjustment knob (11) that is rotatably positioned at the end of the sleeve and engages with the second lead screw.

6. The heavy-duty hoisting safety protection equipment for a mixing plant according to claim 5, characterized in that: The adjusting frame is fixed to the sleeve and the second lead screw respectively.

7. The heavy-duty hoisting safety protection equipment for a mixing plant according to claim 6, characterized in that: In the length adjustment structure, the adjustment frame, slide bar, and first lead screw are arranged coaxially; in the width adjustment structure, the sleeve and second lead screw are arranged coaxially; the adjustment frames of the two length adjustment structures are arranged in parallel; the adjustment frame of the length adjustment structure and the sleeve of the width adjustment structure are arranged perpendicularly.