Lifter device for construction site

Abstract

The utility model relates to an elevator device for a construction site, which comprises a moving support and four moving wheels arranged on two sides of the bottom of the moving support, a hydraulic lifting column is arranged in the middle of the top surface of the moving support, a lifting platform piece is arranged above the hydraulic lifting column, and the lifting platform piece is arranged on the top surface of the moving support. A telescopic positioning stand column assembly is arranged between the movable support and the lifting platform piece, supporting transverse plates are installed on the two sides of the hydraulic lifting column and located at the bottom end of the telescopic positioning stand column assembly, and an anti-falling locking stand column is welded to the middle of the top face of each supporting transverse plate. Anti-falling locking sleeves which can be arranged on the peripheral sides of the anti-falling locking stand columns in a sleeving mode and longitudinally slide on the anti-falling locking stand columns along with lifting of the lifting platform piece are welded to the two side faces of the lifting platform piece correspondingly, and the anti-falling locking sleeves are connected with the anti-falling locking stand columns through inserting and pulling lock pin shafts. The other two side faces of the lifting platform piece are each connected with an auxiliary extending platform piece in an inserted mode, wherein the auxiliary extending platform pieces can extend out for assisting standing.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a lifting device for a construction site. Background Art

[0002] As a kind of transport machinery, construction hoists are mainly used in the construction of urban high-rise buildings. With the rapid development of the construction industry, construction hoists play an increasingly important role in construction. They are mainly responsible for the vertical transportation of personnel and goods. With the development and progress of society, more and more hoists are used in construction. However, when the current hoists are lifting and lowering the lifting platform, they generally lack anti-falling structures, which can easily cause the lifting platform to fall rapidly, which is dangerous.

[0003] After searching, it is found that the existing Chinese patent publication number: CN215101833U is a construction site lift with a safety protection mechanism, including a base and a bottom plate, the surface of the base is fixedly connected to the bottom plate through a hydraulic cylinder, the surface of the bottom plate is fixedly connected to a fixing column, the surface of the fixing column is fixedly installed with a mounting plate and a guardrail, the mounting plate is fixedly connected to the guardrail through a connecting pipe, the surface of the guardrail is provided with a storage groove, and a guard rod is slidably installed in the storage groove.

[0004] The cited patent document also has the same problem, lacking an anti-fall structure, which can easily cause the lifting platform to fall rapidly, which is dangerous. Utility Model Content

[0005] The purpose of the utility model is to provide a lifting device for a construction site in view of the deficiencies of the prior art, and the lifting device for a construction site can well solve the above-mentioned problems.

[0006] In order to achieve the above requirements, the technical solution adopted by the utility model to solve its technical problems is:

[0007] Provided is a lifting device for construction sites, comprising a mobile support and four moving wheels installed on both sides of the bottom of the mobile support, a hydraulic lifting column is installed at the middle position of the top surface of the mobile support, a lifting platform is arranged above the hydraulic lifting column, and a telescopic positioning column assembly is arranged between the mobile support and the lifting platform;

[0008] Support cross plates are installed on both sides of the hydraulic lifting column and at the bottom end of the telescopic positioning column assembly. An anti-fall locking column is welded in the middle of the top surface of each of the support cross plates. Anti-fall locking sleeves are welded on both side surfaces of the lifting platform component, which can be mounted on the surrounding sides of the anti-fall locking column and slide longitudinally on the anti-fall locking column as the lifting platform component is lifted or lowered. The anti-fall locking sleeve is connected to the anti-fall locking column by plugging and pulling out the locking pin shaft, and the other two side surfaces of the lifting platform component are plugged with auxiliary extension platform components that can be extended for assisting standing.

[0009] In this solution, the telescopic positioning column assembly includes four fixed hollow columns welded to the top surface of the movable support in a rectangular distribution and four positioning columns welded to the bottom surface of the lifting platform member in a rectangular distribution;

[0010] The positioning column is adapted to be inserted into the inner cavity of the fixed hollow column.

[0011] Preferably, the two ends of each of the supporting transverse plates are respectively welded to two adjacent fixed hollow columns, and the middle outer wall of the supporting transverse plate is integrally formed with a protruding ear plate for supporting and welding the anti-fall locking column.

[0012] Preferably, a connecting block is welded between each of the anti-fall locking sleeves and the lifting platform component, and the connecting block is connected to the plug-in lock pin shaft via a connecting rope.

[0013] Preferably, the lifting platform member has an accommodating chamber for accommodating two auxiliary extension platform members, and a top surface of the lifting platform member is provided with an inspection opening that passes through the accommodating chamber.

[0014] Preferably, a partition plate is welded in the middle of the inspection opening, and cylinder members extending back to back are mounted on two side surfaces of the partition plate.

[0015] Preferably, in this solution, the telescopic end of the oil cylinder member away from the partition plate is fixedly connected to the opposite auxiliary extension platform member.

[0016] Preferably, a support block is fixedly mounted on the top lifting end of the hydraulic lifting column, and a force-bearing support plate is provided in an annular array on the outer wall of the peripheral side of the support block;

[0017] The force-bearing support plate is fixedly connected to the lifting platform member.

[0018] The beneficial effect of the utility model is that when the lifting platform part is lifted to the required position, the hand-held plug-in lock pin shaft is plugged into the anti-falling locking sleeve, and the plug-in lock pin shaft passes through the anti-falling locking sleeve and the anti-falling locking column, thereby fixing the anti-falling locking sleeve and locking the position of the lifting platform part to prevent the lifting platform part from falling. The operation is simple, fast and convenient, replacing the use of traditional large-scale anti-falling equipment, which is not only simple to operate, but also low in cost and improves the use efficiency.

[0019] When the two auxiliary extension platform members need to be extended for standing use, the two cylinder members are started, and the piston rods of the cylinder members push the auxiliary extension platform members out of the accommodating chamber, thereby providing the operating user with more standing operating space. At the same time, the auxiliary extension platform members have a storage effect, which can increase the scope of use while saving space. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the connection state of the supporting horizontal plate, the anti-fall locking column and the anti-fall locking sleeve of the utility model;

[0023] Figure 3 It is a schematic diagram of the structure of the auxiliary extension platform member of the utility model extending from the lifting platform member;

[0024] Figure 4 It is a schematic structural diagram of the installation state of the oil cylinder component and the auxiliary extension platform component of the utility model;

[0025] Figure 5 This is a schematic diagram of the connection state structure of the support block of the utility model;

[0026] Figure 6 It is a structural schematic diagram of the connection state of the positioning column and the fixed hollow column of the utility model.

[0027] Description of reference numerals:

[0028] In the figure: 1. Mobile support; 2. Mobile wheel; 3. Hydraulic lifting column; 4. Fixed hollow column; 5. Support cross plate; 6. Anti-fall locking column; 7. Anti-fall locking sleeve; 8. Lifting platform parts; 9. Auxiliary extension platform parts; 10. Removable inspection panel;

[0029] 11. Protruding ear plate; 12. Connecting block; 13. Plug-in lock pin shaft; 14. Connecting rope; 15. Locking hole; 16. Inspection port; 17. Partition plate; 18. Cylinder part; 19. Accommodating chamber; 20. Locking bolt; 21. Support block; 22. Force support plate; 23. Positioning column. DETAILED DESCRIPTION

[0030] The terms "first", "second", "third" and "fourth" etc. in the specification and claims of the utility model and the drawings are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices.

[0031] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0032] "Multiple" means two or more. "And / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects are in an "or" relationship.

[0033] Moreover, the terms "up, down, left, right, upper end, lower end, longitudinal" and the like indicating directions are all based on the posture and position of the device or equipment described in this solution during normal use.

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the following will be described clearly and completely in combination with the technical solution in the embodiments of the utility model. Obviously, the described embodiments are partial embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0035] The preferred embodiment of the utility model is a construction site lift device, such as Figure 1-Figure 6 As shown, the device is used for climbing operations in construction sites and buildings. The device includes a mobile support 1 and four mobile wheels 2 installed on both sides of the bottom of the mobile support 1. A hydraulic lifting column 3 is installed in the middle position of the top surface of the mobile support 1. A lifting platform component 8 is arranged above the hydraulic lifting column 3. A support block 21 is fixedly installed on the top lifting end of the hydraulic lifting column 3. Four force-bearing support plates 22 are arranged in a circular array on the outer wall of the surrounding side of the support block 21. The force-bearing support plates 22 are fixedly connected to the lifting platform component 8.

[0036] Specifically, at this time, the four force-bearing support plates 22 can evenly support the lifting platform component 8, thereby improving the support stability of the lifting platform component 8, and the top surfaces of the support block 21 and the four force-bearing support plates 22 are all in contact with the bottom surface of the lifting platform component 8.

[0037] In this embodiment, a telescopic positioning column assembly is also provided between the mobile support 1 and the lifting platform member 8. The telescopic positioning column assembly includes four fixed hollow columns 4 welded on the top surface of the mobile support 1 in a rectangular distribution and four positioning columns 23 welded on the bottom surface of the lifting platform member 8 in a rectangular distribution. The positioning columns 23 are adapted to be inserted into the inner cavity of the fixed hollow columns 4.

[0038] Specifically, when the lifting platform component 8 is being raised and lowered, it can drive the four positioning columns 23 to perform lifting operations in the inner cavity of the fixed hollow column 4. The cooperation of the positioning columns 23 and the fixed hollow column 4 can improve the lifting stability of the lifting platform component 8 and prevent the lifting platform component 8 from getting stuck or lifting during the lifting process.

[0039] In this embodiment, support cross plates 5 are installed on both sides of the hydraulic lifting column 3 and at the bottom end of the telescopic positioning column assembly. An anti-fall locking column 6 is welded in the middle of the top surface of each support cross plate 5. Anti-fall locking sleeves 7 that can be mounted on the sides of the anti-fall locking column 6 and slide longitudinally on the anti-fall locking column 6 as the lifting platform component 8 is raised and lowered are welded on both side surfaces of the lifting platform component 8. The anti-fall locking sleeves 7 are connected to the anti-fall locking column 6 by plugging and pulling out the locking pin shaft 13.

[0040] Specifically, when the lifting platform component 8 is lifted to the required position, the hand-held plug-in lock pin shaft 13 is inserted into the anti-fall locking sleeve 7, and the plug-in lock pin shaft 13 passes through the anti-fall locking sleeve 7 and the anti-fall locking column 6, thereby fixing the anti-fall locking sleeve 7 and locking the position of the lifting platform component 8 to prevent the lifting platform component 8 from falling. The operation is simple, fast and convenient. Locking holes 15 for the plug-in lock pin shaft 13 to be adapted and plugged in are equidistantly provided on the surrounding sides of the anti-fall locking sleeve 7 and the anti-fall locking column 6.

[0041] Furthermore, the two ends of each supporting cross plate 5 are respectively welded to two adjacent fixed hollow columns 4, and the middle outer wall of the supporting cross plate 5 is integrally formed with a protruding ear plate 11 for supporting and welding the anti-fall locking column 6. A connecting block 12 is welded between each anti-fall locking sleeve 7 and the lifting platform part 8, and the connecting block 12 is connected to the plug-in lock pin shaft 13 through a connecting rope 14.

[0042] Specifically, the plug-in lock pin shaft 13 can be pulled under the action of the connecting rope 14 to prevent the plug-in lock pin shaft 13 from being lost.

[0043] In this embodiment, the other two side surfaces of the lifting platform component 8 are plugged with auxiliary extension platform components 9 that can be extended for assisting standing. The interior of the lifting platform component 8 has a accommodating chamber 19 for accommodating two auxiliary extension platform components 9. The top surface of the lifting platform component 8 is provided with an inspection port 16 that passes through the accommodating chamber 19. A partition plate 17 is welded in the middle of the inspection port 16. Cylinder components 18 extending back to back are installed on both sides of the partition plate 17. The telescopic end of the cylinder component 18 away from the partition plate 17 is fixedly connected to the relative auxiliary extension platform component 9, and a step mounting platform is provided on the top of the inspection port 16. A detachable inspection panel 10 is installed on the step mounting platform by means of locking bolts 20, and hand-carrying grooves are provided on both sides of the top surface of the detachable inspection panel 10. The hand-carrying grooves facilitate the lifting of the detachable inspection panel 10 after removal.

[0044] Specifically, when the two auxiliary extension platform members 9 need to be extended for standing use, the two cylinder members 18 are started, and the piston rods of the cylinder members 18 push the auxiliary extension platform members 9 out of the accommodating chamber 19, thereby providing the operating user with more standing operating space. At the same time, the auxiliary extension platform members 9 have a storage effect, which can increase the scope of use while saving space.

[0045] Working principle:

[0046] The construction site lifting device moves the device to the required operating position. When the height of the lifting platform part 8 needs to be adjusted, the hydraulic lifting column 3 drives the support block 21 and the four force-bearing support plates 22 to adjust the lifting and lowering of the lifting platform part 8. When the lifting and lowering adjustment operation of the lifting platform part 8 is carried out, the lifting platform part 8 can drive the four positioning columns 23 to perform lifting and lowering operation in the inner cavity of the fixed hollow column 4. When the lifting platform part 8 is lifted to the required position, the handheld plug-in lock pin shaft 13 is plugged into the anti-fall locking sleeve 7, and the plug-in lock pin shaft 13 passes through the anti-fall locking sleeve 7 and the anti-fall locking column 6, thereby achieving the fixation of the anti-fall locking sleeve 7 and the position locking of the lifting platform part 8;

[0047] When the two auxiliary extension platform members 9 need to be extended for standing use, the two cylinder members 18 are activated, and the piston rods of the cylinder members 18 push the auxiliary extension platform members 9 out of the accommodating chamber 19, thereby providing more standing operating space for the operating user.

[0048] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A lifting device for a construction site, characterized in that: It comprises a movable support (1) and four movable wheels (2) installed on both sides of the bottom of the movable support (1); a hydraulic lifting column (3) is installed in the middle of the top surface of the movable support (1); a lifting platform component (8) is arranged above the hydraulic lifting column (3); and a telescopic positioning column assembly is provided between the movable support (1) and the lifting platform component (8); Supporting cross plates (5) are installed on both sides of the hydraulic lifting column (3) and at the bottom end of the telescopic positioning column assembly. An anti-fall locking column (6) is welded in the middle of the top surface of each supporting cross plate (5). Anti-fall locking sleeves (7) that can be mounted on the sides of the anti-fall locking column (6) and slide longitudinally on the anti-fall locking column (6) as the lifting platform component (8) is raised and lowered are welded on both side surfaces of the lifting platform component (8). The anti-fall locking sleeves (7) are connected to the anti-fall locking column (6) by plugging and pulling out the lock pin shaft (13). The other two side surfaces of the lifting platform component (8) are plugged with auxiliary extension platform components (9) that can be extended for auxiliary standing.

2. The construction site lift device according to claim 1, characterized in that: The telescopic positioning column assembly comprises four fixed hollow columns (4) distributed in a rectangular shape and welded to the top surface of the movable support (1) and four positioning columns (23) distributed in a rectangular shape and welded to the bottom surface of the lifting platform member (8); The positioning column (23) is adapted to be inserted into the inner cavity of the fixed hollow column (4).

3. The construction site lift device according to claim 2, characterized in that: The two ends of each supporting transverse plate (5) are respectively welded to two adjacent fixed hollow columns (4), and the middle outer wall of the supporting transverse plate (5) is integrally formed with a protruding ear plate (11) for supporting and welding the anti-fall locking column (6).

4. The construction site lift device according to claim 3, characterized in that: A connecting block (12) is welded between each anti-fall locking sleeve (7) and the lifting platform component (8), and the connecting block (12) is connected to the plug-in lock pin shaft (13) via a connecting rope (14).

5. The construction site lift device according to claim 4, characterized in that: The lifting platform component (8) has an accommodating chamber (19) inside for accommodating two auxiliary extension platform components (9), and the top surface of the lifting platform component (8) is provided with an inspection opening (16) that passes through the accommodating chamber (19).

6. The construction site lift device according to claim 5, characterized in that: A partition plate (17) is welded in the middle of the inspection opening (16), and oil cylinder parts (18) extending in opposite directions are installed on two side surfaces of the partition plate (17).

7. The construction site lift device according to claim 6, characterized in that: The telescopic end of the oil cylinder member (18) away from the partition plate (17) is fixedly connected to the opposite auxiliary extension platform member (9).

8. The construction site lift device according to claim 7, characterized in that: A support block (21) is fixedly mounted on the top lifting end of the hydraulic lifting column (3), and a force-bearing support plate (22) is provided in a circular array on the outer wall of the peripheral side of the support block (21); The force-bearing support plate (22) is fixedly connected to the lifting platform component (8).

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