Pulley mechanism for building construction hoisting

Abstract

The utility model relates to the technical field of building construction, in particular to a pulley mechanism for lifting in building construction, which comprises a housing, a mounting table is rotatably mounted on the housing, a lifting hook is rotatably mounted on the mounting table, a rotating rod is movably arranged on the right side of the housing in a penetrating manner, and the left end of the rotating rod is fixedly connected with a guide block. A positioning block is fixedly connected to the left side of the guide block, a through hole matched with the positioning block is formed in the left side of the housing, the rotating rod is movably sleeved with a wheel body, and a positioning assembly capable of fixing the position of the wheel body is installed on the housing, so that the wheel body cannot slide left and right. The situation that friction between the wheel body and the inner wall of the housing influences rotation of the wheel body and aggravates abrasion of the wheel body is avoided, the dismounting and mounting assembly capable of rapidly dismounting and mounting the rotating rod is installed on the housing, the wheel body can be conveniently and rapidly replaced, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a pulley mechanism for lifting in building construction. Background Technology

[0002] Pulley mechanisms are widely used hoisting mechanisms. They are often used for hoisting during construction. A pulley mechanism generally consists of three parts: a wheel body, a housing, and a hook. The wheel body is usually an integral structure with the housing, or it is installed on the housing using several sets of bolts. This makes it difficult to replace the wheel body if it is worn or damaged, which affects the construction progress.

[0003] Chinese patent (authorization announcement number: CN 211998600 U, authorization announcement date: 2020.11.24) proposes a lifting pulley for construction. This patent uses a left side plate, a right side plate, a first square column, and a second square column. By pressing the slider outward, the slider causes the column to retract into the cylindrical groove, so that the first square column and the second square column are located inside the first square hole and the second square hole, respectively. After the pressure on the slider is released, the column slides into the limiting groove under the elastic restoring force of the spring, so that the rotating rod is fixed between the left side plate and the right side plate. When disassembly is required, simply press the slider outward again. After losing the clamping of the column, the rotating rod will slide out by itself. It is convenient and simple, and can realize the quick disassembly and replacement of the wheel.

[0004] However, after the wheel is mounted on the rotating rod, the patent cannot effectively fix the position of the wheel. During use, the wheel will slide on the rotating rod. When the wheel slides to the position where it is in contact with the side plate, the rotation of the wheel will be affected by friction and the wear of the wheel will be aggravated. In order to fix the position of the wheel in the pulley mechanism, avoid friction between the wheel and the cover, and allow for quick disassembly and replacement when the wheel is damaged, we propose a pulley mechanism for construction hoisting. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a pulley mechanism for hoisting in construction, which can fix the position of the wheel in the pulley mechanism, avoid friction between the wheel and the cover, and allow for quick disassembly and replacement when the wheel is damaged.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A construction hoisting pulley mechanism includes a housing, an mounting platform rotatably mounted on the housing, a hook rotatably mounted on the mounting platform, a rotating rod movably passing through the right side of the housing, a guide block fixedly connected to the left end of the rotating rod, a positioning block fixedly connected to the left side of the guide block, a through hole matching the positioning block on the left side of the housing, a wheel movably fitted around the rotating rod, a positioning component for fixing the position of the wheel, and a disassembly / reassembly component for quickly assembling and disassembling the rotating rod.

[0008] The positioning assembly includes a left rotating disk, which is movably sleeved outside the rotating rod. A connecting ring is rotatably connected to the left side of the left rotating disk, and several sets of sliding plates are fixedly connected to the left side of the connecting ring. The sliding plates slide through the cover, and a limit plate is fixedly connected to the left end of the sliding plates. A first rotating sleeve is rotatably connected to the left side of the cover, and the first rotating sleeve is threadedly connected to the sliding plate. A rotating rod is fixedly connected to the outer wall of the first rotating sleeve. A right rotating disk is provided on the right side of the wheel body, and an adjustment mechanism for adjusting the distance between the right rotating disk and the wheel body is installed on the cover.

[0009] Preferably, the adjusting mechanism includes a threaded sleeve, which is fixedly connected to the right side of the inner wall of the cover. The threaded sleeve is movably sleeved outside the rotating rod. A sliding sleeve is slidably sleeved outside the threaded sleeve. The left side of the sliding sleeve is rotatably connected to the right side of the right rotating disk. A second rotating sleeve is rotatably connected to the right side of the sliding sleeve. The threaded sleeve passes through the second rotating sleeve.

[0010] Preferably, the assembly / disassembly assembly includes an installation box, which is fixedly connected to the right side of the cover. A button is slidably inserted through the top of the installation box. Two sets of sliding brackets are slidably connected to the right side of the cover. A spring is fixedly connected to the side of the sliding bracket away from the button. The end of the spring away from the sliding bracket is fixedly connected to the inner wall of the installation box. An insert is fixedly connected to the side of the sliding bracket near the button. The insert slides through the installation box. A groove matching the insert is provided on the rotating rod.

[0011] Preferably, the bottom of the button is provided with an inclined surface, and the side of the sliding bracket near the button is provided with an inclined surface, and the inclined surface on the button matches the inclined surface on the sliding bracket.

[0012] Preferably, a pull ring is fixedly connected to the right end of the rotating rod.

[0013] Preferably, a plurality of sliders are fixedly connected to the inner wall of the sliding sleeve, and the threaded sleeve is provided with a groove that matches the slider, and the slider is slidably connected to the groove.

[0014] Beneficial effects

[0015] This utility model provides a pulley mechanism for hoisting in building construction. Compared with the prior art, it has the following advantages:

[0016] This type of pulley mechanism for hoisting in construction involves rotating a rotating rod to move the left rotating disk left and right, and rotating the second rotating sleeve to move the right rotating disk left and right. This clamps the wheel between the left and right rotating disks, fixing its position and preventing it from sliding left and right. This avoids friction between the wheel and the inner wall of the casing, which could affect the wheel's rotation and accelerate wear. When the wheel needs to be replaced, pressing down on the mounting box moves the two sets of inserts away from each other, disengaging them from the grooves on the rotating rod. The rotating rod can then be removed, and the wheel can be taken off for replacement. This method is convenient, quick, and improves work efficiency. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the main body of this utility model;

[0018] Figure 2 This is a schematic diagram of the rear view of the main body structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the positioning component of this utility model;

[0020] Figure 4 This is an exploded view of the positioning component of this utility model;

[0021] Figure 5 This is an exploded view of the disassembly and assembly components of this utility model.

[0022] In the diagram: 1. Cover; 2. Hook; 3. Mounting platform; 5. Wheel; 6. Limiting plate; 7. Mounting box; 8. Rotating rod; 9. Left rotating disk; 10. Sliding plate; 11. First rotating sleeve; 12. Right rotating disk; 13. Sliding sleeve; 14. Threaded sleeve; 15. Second rotating sleeve; 16. Pull ring; 17. Insert block; 18. Connecting ring; 19. Rotating rod; 20. Positioning block; 21. Guide block; 22. Button; 23. Sliding frame; 24. Spring. Detailed Implementation

[0023] 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 some embodiments of the present utility model, and not all embodiments. 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.

[0024] Please see Figure 1-5This utility model provides a technical solution: a pulley mechanism for hoisting in construction, including a housing 1, an mounting platform 3 rotatably mounted on the housing 1, a hook 2 rotatably mounted on the mounting platform 3, a rotating rod 8 movably passing through the right side of the housing 1, a guide block 21 fixedly connected to the left end of the rotating rod 8, a positioning block 20 fixedly connected to the left side of the guide block 21, a through hole matching the positioning block 20 on the left side of the housing 1, a wheel 5 movably mounted on the outside of the rotating rod 8, a positioning component that can fix the position of the wheel 5 mounted on the housing 1, and a disassembly and assembly component that can quickly disassemble and assemble the rotating rod 8 mounted on the housing 1;

[0025] The positioning assembly includes a left rotating disk 9, which is movably sleeved outside the rotating rod 8. A connecting ring 18 is rotatably connected to the left side of the left rotating disk 9. Several sets of sliding plates 10 are fixedly connected to the left side of the connecting ring 18. The sliding plates 10 slide through the cover 1. A limit plate 6 is fixedly connected to the left end of the sliding plate 10. A first rotating sleeve 11 is rotatably connected to the left side of the cover 1. The first rotating sleeve 11 is threadedly connected to the sliding plate 10. A rotating rod 19 is fixedly connected to the outer wall of the first rotating sleeve 11. A right rotating disk 12 is provided on the right side of the wheel body 5. An adjustment mechanism for adjusting the distance between the right rotating disk 12 and the wheel body 5 is installed on the cover 1.

[0026] In use, place the wheel 5 in the middle of the cover 1 and align the shaft hole of the wheel 5 with the through holes on the left rotating disk 9 and the right rotating disk 12. Then, insert the rotating rod 8 into the cover 1 from the right side. The rotating rod 8 passes through the right rotating disk 12, the wheel 5, and the left rotating disk 9 until the positioning block 20 is inserted into the matching through hole on the left side of the cover 1. At this time, the left side of the guide block 21 abuts against the inner wall of the cover 1. Fix the position of the rotating rod 8 by using the disassembly and assembly assembly, thus completing the installation of the wheel 5. Manually rotating the rotating rod 19 causes the first rotating sleeve 11 to rotate, which in turn causes the sliding plate 10 to move left and right, the connecting ring 18 to move left and right, and the left rotating disk 9 to move left and right, so that the right side of the left rotating disk 9 abuts against the left side of the wheel body 5. Then, the adjusting mechanism is controlled to adjust the distance between the right rotating disk 12 and the wheel body 5, so that the left side of the right rotating disk 12 abuts against the right side of the wheel body 5, clamping the wheel body 5 between the left rotating disk 9 and the right rotating disk 12, thereby fixing the position of the wheel body 5 and preventing it from sliding left and right. This avoids friction between the wheel body 5 and the inner wall of the cover 1, which affects the rotation of the wheel body 5 and aggravates the wear of the wheel body 5. When the wheel body 5 needs to be replaced, the rotating rod 8 can be quickly removed by the disassembly and assembly assembly. Then, the positioning assembly is used to move the left rotating disk 9 and the right rotating disk 12 away from the wheel body 5, so that the wheel body 5 can be removed for replacement. This is convenient, quick, and improves work efficiency.

[0027] The adjusting mechanism includes a threaded sleeve 14, which is fixedly connected to the right side of the inner wall of the cover 1. The threaded sleeve 14 is movably sleeved outside the rotating rod 8. A sliding sleeve 13 is slidably sleeved outside the threaded sleeve 14. The left side of the sliding sleeve 13 is rotatably connected to the right side of the right rotating disk 12. A second rotating sleeve 15 is rotatably connected to the right side of the sliding sleeve 13. The threaded sleeve 14 is threaded through the second rotating sleeve 15.

[0028] Rotating the second rotating sleeve 15 causes the sliding sleeve 13 to move left and right, which in turn causes the right rotating disk 12 to move left and right, thereby adjusting the distance between the wheel body 5 and the right rotating disk 12.

[0029] The assembly and disassembly components include a mounting box 7, which is fixedly connected to the right side of the cover 1. A button 22 is slidably inserted through the top of the mounting box 7. Two sets of sliding brackets 23 are slidably connected to the right side of the cover 1. A spring 24 is fixedly connected to the side of the sliding bracket 23 away from the button 22. The end of the spring 24 away from the sliding bracket 23 is fixedly connected to the inner wall of the mounting box 7. An insert 17 is fixedly connected to the side of the sliding bracket 23 near the button 22. The insert 17 slides through the mounting box 7. A groove matching the insert 17 is provided on the rotating rod 8.

[0030] Press down on the mounting box 7 to move the two sets of sliding brackets 23 away from each other, causing the two sets of inserts 17 to move away from each other, so that the inserts 17 disengage from the grooves on the rotating rod 8, and the rotating rod 8 can be removed.

[0031] The bottom of button 22 is provided with an inclined surface, and the side of the sliding bracket 23 near button 22 is provided with an inclined surface. The inclined surface on button 22 matches the inclined surface on sliding bracket 23.

[0032] A pull ring 16 is fixedly connected to the right end of the rotating rod 8, which makes it easy for the operator to pull out the rotating rod 8.

[0033] Several sets of sliders are fixedly connected to the inner wall of the sliding sleeve 13, and the threaded sleeve 14 is provided with a sliding groove that matches the slider, and the slider is slidably connected to the sliding groove.

[0034] Working principle: When in use, place the wheel 5 in the middle of the cover 1, and align the shaft hole of the wheel 5 with the through holes on the left rotating disk 9 and the right rotating disk 12. Then, insert the rotating rod 8 into the cover 1 from the right side. The guide block 21 presses the two sets of insert blocks 17 to keep them away from each other, ensuring that the rotating rod 8 can be inserted normally. The rotating rod 8 passes through the right rotating disk 12, the wheel 5, and the left rotating disk 9 until the positioning block 20 is inserted into the through hole on the left side of the cover 1. At this time, the left side of the guide block 21 abuts against the inner wall of the cover 1, and the insert block 17 is inserted into the groove on the rotating rod 18 under the action of the spring 24, thereby fixing the position of the rotating rod 8, thus completing the installation of the wheel 5. Manually rotating the rotating rod 19 causes the first rotating sleeve 11 to rotate, which in turn moves the sliding plate 10 left and right, causing the connecting ring 18 to move left and right, and causing the left rotating disk 9 to move left and right, so that the right side of the left rotating disk 9 abuts against the left side of the wheel body 5. Then, rotating the second rotating sleeve 15 causes the sliding sleeve 13 to move left and right, which in turn moves the right rotating disk 12 left and right, thereby adjusting the distance between the wheel body 5 and the right rotating disk 12, so that the left side of the right rotating disk 12 abuts against the right side of the wheel 5, clamping the wheel 5 between the left rotating disk 9 and the right rotating disk 12, thus securing it. The position of the fixed wheel 5 is prevented from sliding left and right, thus avoiding friction between the wheel 5 and the inner wall of the cover 1, which would affect the rotation of the wheel 5 and accelerate the wear of the wheel 5. When the wheel 5 needs to be replaced, press down on the mounting box 7 to move the two sets of sliding brackets 23 away from each other, causing the two sets of insert blocks 17 to move away from each other, so that the insert blocks 17 disengage from the groove on the rotating rod 8, and the rotating rod 8 can be removed. Then, the positioning component is used to move the left rotating disk 9 and the right rotating disk 12 away from the wheel 5, so that the wheel 5 can be removed for replacement. This is convenient, quick and easy, and improves work efficiency.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pulley mechanism for construction hoisting, comprising a housing (1), characterized in that: The cover (1) is rotatably installed with a mounting table (3), the mounting table (3) is rotatably installed with a hook (2), the right side of the cover (1) is movably provided with a rotating rod (8), the left end of the rotating rod (8) is fixedly connected with a guide block (21), the left side of the guide block (21) is fixedly connected with a positioning block (20), the left side of the cover (1) is provided with a through hole matched with the positioning block (20), the rotating rod (8) is movably sleeved with a wheel body (5), the cover (1) is installed with a positioning assembly capable of fixing the position of the wheel body (5), and the cover (1) is installed with a dismounting assembly capable of quickly dismounting the rotating rod (8). The positioning assembly comprises a left rotating disc (9), the left rotating disc (9) is movably sleeved outside the rotating rod (8), the left side of the left rotating disc (9) is rotatably connected with a connecting ring (18), the left side of the connecting ring (18) is fixedly connected with a plurality of groups of sliding plates (10), the sliding plates (10) are movably provided through the cover (1), the left end of the sliding plate (10) is fixedly connected with a limiting plate (6), the left side of the cover (1) is rotatably connected with a first rotating sleeve (11), the first rotating sleeve (11) is threadedly connected with the sliding plate (10), the outer wall of the first rotating sleeve (11) is fixedly connected with a rotating rod (19), the right side of the wheel body (5) is provided with a right rotating disc (12), and the cover (1) is installed with an adjusting mechanism for adjusting the distance between the right rotating disc (12) and the wheel body (5).

2. A pulley mechanism for construction hoisting according to claim 1, characterized in that: The adjusting mechanism comprises a threaded sleeve (14), the threaded sleeve (14) is fixedly connected to the right side of the inner wall of the cover (1), the threaded sleeve (14) is movably sleeved outside the rotating rod (8), the threaded sleeve (14) is movably sleeved with a sliding sleeve (13), the left side of the sliding sleeve (13) is rotatably connected with the right side of the right rotating disc (12), and the right side of the sliding sleeve (13) is rotatably connected with a second rotating sleeve (15). The threaded sleeve (14) is threadedly provided through the second rotating sleeve (15).

3. The pulley mechanism for construction hoisting according to claim 1, characterized in that: The dismounting assembly comprises a mounting box (7), the mounting box (7) is fixedly connected to the right side of the cover (1), the top of the mounting box (7) is movably provided with a button (22), the right side of the cover (1) is movably connected with two groups of sliding frames (23), the side away from the button (22) of the sliding frame (23) is fixedly connected with a spring (24), one end of the spring (24) away from the sliding frame (23) is fixedly connected with the inner wall of the mounting box (7), the side close to the button (22) of the sliding frame (23) is fixedly connected with an insertion block (17), the insertion block (17) is movably provided through the mounting box (7), and the rotating rod (8) is provided with a groove matched with the insertion block (17).

4. A pulley mechanism for construction hoisting according to claim 3, characterized in that: The bottom of the button (22) is provided with an inclined surface, the side close to the button (22) of the sliding frame (23) is provided with an inclined surface, and the inclined surface on the button (22) is matched with the inclined surface on the sliding frame (23).

5. The pulley mechanism for construction hoisting according to claim 1, characterized in that: The right end of the rotating rod (8) is fixedly connected with a pull ring (16).

6. The pulley mechanism for construction hoisting according to claim 2, characterized in that: A plurality of groups of sliding blocks are fixedly connected to the inner wall of the sliding sleeve (13), and a plurality of sliding grooves matched with the sliding blocks are formed in the threaded sleeve (14), and the sliding blocks are in sliding connection with the sliding grooves.

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