Anti-falling welding lifting platform

Abstract

An anti-falling welding lifting platform relates to the technical field of lifting equipment and comprises a base and a workbench. Two corner ends of the base are respectively provided with an anti-falling guide device, and the other two corner ends of the base are respectively provided with a track guide device; a workbench is vertically and slidably connected to the upper portion of the base through an anti-falling guide device and a rail guide device. Driving devices used for driving the workbench to move up and down are arranged on the two sides of the base. The two anti-falling guiding devices and the two rail guiding devices are located at the four corner ends of the workbench respectively and used for providing guiding for lifting of the workbench, meanwhile, the workbench is effectively prevented from falling accidentally, and the stability of the workbench is improved; the anti-falling guide device effectively prevents the sliding sleeve from accidentally moving downwards through a plurality of stop mechanisms, and the safety performance is improved. And the sliding sleeve is automatically unlocked when moving upwards and is automatically locked after moving upwards in place, so that the operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting equipment, in particular to an anti-fall welding lifting platform. Background Art

[0002] The welding lifting platform is a welding auxiliary device, which is mainly used to facilitate welding operations. It adjusts the welding position to achieve a state that is conducive to welding operations. During use, the platform needs to bear the weight of welding operators, welding equipment, welding materials and other objects. Therefore, during construction, it is very important to ensure the safety of the platform, especially to prevent the occurrence of platform falling accidents.

[0003] At present, the commonly used anti-falling methods for lifting platforms are mainly the following: hydraulic self-locking, brake braking and manual device. The anti-falling device in the form of hydraulic self-locking is composed of multiple components such as hydraulic locks, hydraulic pipelines, hydraulic joints, etc. Due to its structural characteristics, the hydraulic pipelines need to be maintained and inspected on a daily basis, but it is difficult to check the inside of the hydraulic lock, which poses certain safety hazards. During the use of the anti-falling device in the form of a brake, it is necessary to check the braking torque and the wear of the tiles on a daily basis, and the replacement frequency of the brake tiles is high, which undoubtedly increases the maintenance workload and cost. The anti-falling device in the form of a manual device has the problem of cumbersome operation, and is easily forgotten in actual operation, thus causing safety hazards. Therefore, those skilled in the art are in urgent need of developing a welding lifting platform with an anti-falling function to reduce the safety hazards of the existing commonly used anti-falling methods. Utility Model Content

[0004] In order to overcome the deficiencies in the background technology, the utility model discloses an anti-fall welding lifting platform.

[0005] In order to achieve the above-mentioned invention object, the utility model adopts the following technical solutions:

[0006] A fall-proof welding lifting platform comprises a base and a workbench; two corner ends of the base are respectively provided with fall-proof guide devices, and the other two corner ends are respectively provided with track guide devices; the top of the base is vertically slidably connected with the workbench through the fall-proof guide device and the track guide device; driving devices for driving the workbench to move up and down are provided on both sides of the base.

[0007] Preferably, the anti-fall guide device includes a column and a sliding sleeve; the column is vertically and firmly connected to the base, the sliding sleeve of the column body is provided with a sliding sleeve, and the sliding sleeve is correspondingly and firmly connected to the workbench; a cavity is provided inside the column, and a plurality of stop mechanisms are provided in the cavity from bottom to top; the stop mechanism includes an eccentric stop plate hinged to the column through a hinge shaft; a slot is provided at the position of the column corresponding to the eccentric stop plate, which enables one end of the eccentric stop plate to extend out.

[0008] Preferably, it further comprises an unlocking mechanism; the unlocking mechanism comprises a sliding rod vertically slidably arranged in the cavity of the column; a mixing shaft is arranged at the position of the sliding rod corresponding to the eccentric stop plate.

[0009] Preferably, the unlocking mechanism also includes a telescopic cylinder for driving the sliding rod to move up and down; the telescopic cylinder is arranged in the cavity of the column, and the telescopic end of the telescopic cylinder is correspondingly connected to the sliding rod; or the telescopic cylinder is arranged on one side of the bottom of the column, the telescopic end of the telescopic cylinder movably penetrates the side wall of the column, and the bottom of the sliding rod is a wedge-shaped structure that can slide with the telescopic end of the telescopic cylinder.

[0010] Preferably, the articulated shaft body is sleeved with a torsion spring for allowing one end of the eccentric stop plate to extend out of the slot of the column.

[0011] Preferably, the end of the eccentric stop plate extending out of the slot of the column has a triangular structure.

[0012] Preferably, a limiting column for limiting the deflection angle of the eccentric stop plate when it is unlocked is provided above the corresponding hinge axis in the column cavity.

[0013] Preferably, the track guide device comprises a pillar vertically fastened to the base, a slide rail is provided on one side of the pillar, and the workbench is slidably connected to the slide rail via a slider.

[0014] Preferably, the driving device is a telescopic rod, a nut-screw mechanism driven by a motor, or a winch driven by a motor.

[0015] Preferably, fences are provided around the workbench.

[0016] Due to the adoption of the above-mentioned technical solution, the utility model has the following beneficial effects:

[0017] The utility model discloses an anti-fall welding lifting platform with simple structure, easy assembly and low production cost. Two anti-fall guide devices and two track guide devices are respectively located at the four corner ends of the workbench to provide guidance for the lifting and lowering of the workbench, while effectively preventing the workbench from accidentally falling and improving the stability of the workbench.

[0018] The anti-fall guide device of the utility model effectively prevents the sliding sleeve from accidentally moving downward through multiple stop mechanisms, thereby improving safety performance. The sliding sleeve is automatically unlocked when it moves upward, and automatically locked after it moves up to the right position, thereby improving operational efficiency. All stop mechanisms are unlocked at one time through the unlocking mechanism, avoiding manual operation one by one, thereby improving ease of use. The unlocking mechanism is flexibly designed to adapt to different installation spaces and usage scenarios. The torsion spring ensures that the eccentric stop plate remains in a locked state, thereby improving the reliability of the stop mechanism. The triangular structural design of the eccentric stop plate optimizes the stopping effect and prevents excessive deflection. The limit column limits the deflection angle of the eccentric stop plate, thereby further improving the stability and reliability of the stop mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the anti-fall guide device;

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the anti-fall guide device;

[0022] Figure 4 It is a schematic diagram of the structure of the track guide device.

[0023] In the figure: 1. base; 2. workbench; 3. anti-fall guide device; 3-1. column; 3-2. sliding sleeve; 3-3. hinge shaft; 3-4. eccentric stop plate; 3-5. slide rod; 3-6. mixing shaft; 3-7. telescopic cylinder; 3-8. limit column 4. track guide device; 4-1. pillar; 4-2. slide rail; 5. driving device. DETAILED DESCRIPTION

[0024] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. indicating directions or positional relationships, they only correspond to the drawings of the present application for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction.

[0025] Embodiment 1, in combination with Figures 1 to 4A fall-proof welding lifting platform comprises a base 1 and a workbench 2; two corner ends of the base 1 are respectively provided with fall-proof guide devices 3, and the other two corner ends are respectively provided with track guide devices 4; the workbench 2 is vertically slidably connected to the top of the base 1 through the fall-proof guide device 3 and the track guide device 4, that is, the two fall-proof guide devices 3 and the two track guide devices 4 are respectively located at the four corner ends of the workbench 2, which are used to provide guidance for the lifting and lowering of the workbench 2, and at the same time effectively prevent the workbench 2 from accidentally falling, thereby improving the stability of the workbench 2.

[0026] As attached Figure 2 and 3 As shown, the anti-falling guide device 3 comprises a column 3-1 and a sliding sleeve 3-2. The column 3-1 is arranged vertically, and the column body sliding sleeve is provided with a sliding sleeve 3-2, and the sliding sleeve 3-2 is correspondingly and firmly connected to the workbench 2. The column 3-1 serves as the foundation of the entire device, and its bottom needs to be firmly connected to the base 1 to ensure the stability of the entire device. The main function of the column 3-1 is to guide the sliding sleeve 3-2 so that it can move vertically up and down.

[0027] A cavity is provided inside the column 3-1, and a plurality of stop mechanisms are provided in the cavity from bottom to top. The main function of the stop mechanism is to prevent the sliding sleeve 3-2 from accidentally moving downward, thereby ensuring its safety.

[0028] The structure of the stop mechanism is as follows:

[0029] The eccentric stop plate 3-4 is hinged to the column 3-1 via the hinge shaft 3-3.

[0030] A slot is provided at a position of the column 3-1 corresponding to the eccentric stop plate 3-4, so that one end of the eccentric stop plate 3-4 can extend out of the slot.

[0031] The working principle of the stop mechanism is as follows:

[0032] The eccentric stop plate 3-4 can deflect to the side of the column 3-1 where the slot is provided under the action of its own gravity, so that one end of the eccentric stop plate 3-4 extends out of the slot, thereby preventing the sliding sleeve 3-2 from moving downward.

[0033] When the sliding sleeve 3-2 moves upward, the sliding sleeve 3-2 can push the eccentric stop plate 3-4 in contact with the upper end of the sliding sleeve 3-2 to deflect upward, so that the eccentric stop plate 3-4 is retracted into the slot without affecting the upward movement of the sliding sleeve 3-2.

[0034] When the sliding sleeve 3-2 moves up to the right position, the sliding sleeve 3-2 will fall on the eccentric stop plate 3-4 closest to the bottom thereof, thereby being locked and effectively preventing the sliding sleeve 3-2 from falling.

[0035] When the sliding sleeve 3-2 needs to move downward, the sliding sleeve 3-2 is first moved upward for a distance, so that the eccentric stop plate 3-4 below the sliding sleeve 3-2 can be deflected upward and retracted into the slot of the column 3-1, thereby controlling the sliding sleeve 3-2 to move downward.

[0036] As attached Figure 4 As shown, the track guide device 4 includes a pillar 4-1 vertically fastened to the base 1, a slide rail 4-2 is provided on one side of the pillar 4-1, and the workbench 2 is slidably connected to the slide rail 4-2 through a slider; it can effectively prevent the workbench 2 from being accidentally stuck and improve the smoothness of the lifting and lowering of the workbench 2.

[0037] Driving devices 5 for driving the workbench 2 to move up and down are arranged on both sides of the base 1; the driving device 5 can be a telescopic rod, a nut screw mechanism driven by a motor, or a winch driven by a motor.

[0038] Embodiment 2, in combination with Figures 2-3 , a fall-proof welding lifting platform, which is different from Example 1 in that it also includes an unlocking mechanism based on Example 1.

[0039] The structure of the unlocking mechanism is as follows:

[0040] The slide bar 3-5 is vertically slidably arranged in the cavity of the column 3-1.

[0041] A mixing shaft 3-6 is provided at the position of the sliding rod 3-5 corresponding to the eccentric stop plate 3-4.

[0042] When unlocking is required, by pushing the slide bar 3-5, the slide bar 3-5 drives the mixing shaft 3-6, and the mixing shaft 3-6 pushes the eccentric stop plate 3-4 to retract into the slot of the column 3-1, so that all the stop mechanisms in the cavity of the column 3-1 can be unlocked.

[0043] It should be noted that:

[0044] If the mixing shaft 3-6 is arranged at the bottom of the eccentric stop plate 3-4, the slide bar 3-5 needs to be controlled to move upward when unlocking.

[0045] If the mixing shaft 3-6 is arranged on the top of the eccentric stop plate 3-4, the slide bar 3-5 needs to be controlled to move downward when unlocking.

[0046] In order to realize automatic control, the unlocking mechanism also includes a telescopic cylinder 3-7 for driving the slide bar 3-5 to move up and down.

[0047] There are two ways to set the telescopic cylinder 3-7:

[0048] The first setting method:

[0049] The telescopic cylinder 3-7 is arranged in the cavity of the column 3-1, and the telescopic end of the telescopic cylinder 3-7 is correspondingly connected to the sliding rod 3-5.

[0050] The slide bar 3-5 is driven to move up and down by the telescopic cylinder 3-7.

[0051] This structure has no requirements on the setting position of the mixing shaft 3-6, but the telescopic cylinder 3-7 located at the bottom of the cavity of the column 3-1 will occupy a certain space, resulting in the inability to set a stop mechanism at the bottom of the column 3-1.

[0052] The second setting method:

[0053] The telescopic cylinder 3-7 is arranged on one side of the bottom of the column 3-1, and the telescopic end of the telescopic cylinder 3-7 movably penetrates the side wall of the column 3-1, and the bottom of the slide rod 3-5 is a wedge-shaped structure that can slide with the telescopic end of the telescopic cylinder 3-7.

[0054] When the telescopic end of the telescopic cylinder 3-7 is extended, it can push the slide bar 3-5 upward to achieve the unlocking function.

[0055] The telescopic cylinder 3-7 of this structure can be arranged horizontally, so as not to occupy much space in the cavity of the column 3-1, and the sliding sleeve 3-2 can be limited to a lower height.

[0056] It should be noted that in the second structure, the telescopic cylinder 3-7 can only push the slide rod 3-5 upward, so the mixing shaft 3-6 needs to be arranged at the bottom of the eccentric stop plate 3-4, otherwise the unlocking function cannot be achieved.

[0057] Embodiment 3, in combination with Figures 2-3 , a fall-proof welding lifting platform, based on embodiment 1 or 2, the articulated shaft 3-3 is sleeved with a torsion spring, not shown in the figure, which is used to make one end of the eccentric stop plate 3-4 extend out of the slot of the column 3-1.

[0058] Furthermore, the eccentric stop plate 3-4 can be kept in a locked state under the action of the torsion spring, effectively improving the reliability of the stop mechanism.

[0059] Furthermore, the end of the eccentric stop plate 3-4 extending out of the slot of the column 3-1 is triangular in structure. When unlocking, the eccentric stop plate 3-4 only needs a small deflection angle to retract into the slot of the column 3-1, preventing the eccentric stop plate 3-4 from deflecting excessively and failing to automatically deflect and extend, thereby realizing the locking function.

[0060] Furthermore, a limit column 3-8 is provided above the hinge shaft 3-3 in the cavity of the column 3-1 to limit the deflection angle of the eccentric stop plate 3-4 when it is unlocked. The limit column 3-8 can further prevent the eccentric stop plate 3-4 from excessively deflecting, further improving the reliability of the stop mechanism.

[0061] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the present invention.

Claims

1. A fall-proof welding lifting platform, characterized in that: Include: Base (1); A workbench (2) vertically slidably connected to the top of the base (1) via an anti-fall guide device (3) and a track guide device (4); A driving device (5) is arranged on both sides of the base (1) and is used to drive the workbench (2) to move up and down; Wherein, two corner ends of the base (1) are respectively provided with anti-falling guide devices (3), and the other two corner ends are respectively provided with track guide devices (4).

2. The anti-fall welding lifting platform according to claim 1 is characterized in that: The anti-falling guide device (3) comprises: The column (3-1) is vertically and firmly connected to the base (1), and has a cavity inside; A sliding sleeve (3-2), which is arranged on the column body of the column (3-1) and is correspondingly and firmly connected to the workbench (2); A stop mechanism, wherein a plurality of stop mechanisms are arranged in a cavity of the column (3-1) at intervals from bottom to top, and the stop mechanism comprises: An eccentric stop plate (3-4) is correspondingly hinged to the column (3-1) via a hinge shaft (3-3); A slot is provided at a position of the column (3-1) corresponding to the eccentric stop plate (3-4), so that one end of the eccentric stop plate (3-4) can extend out.

3. The anti-fall welding lifting platform according to claim 2 is characterized in that: Also includes an unlocking mechanism; the unlocking mechanism includes: A sliding rod (3-5) is vertically slidably disposed in the cavity of the column (3-1); The mixing shaft (3-6) is arranged at a position of the sliding rod (3-5) corresponding to the eccentric stop plate (3-4).

4. The anti-fall welding lifting platform according to claim 3 is characterized in that: The unlocking mechanism further comprises a telescopic cylinder (3-7) for driving the slide rod (3-5) to move up and down; The telescopic cylinder (3-7) is arranged in the cavity of the column (3-1), and the telescopic end thereof is correspondingly connected to the sliding rod (3-5); Or the telescopic cylinder (3-7) is arranged on one side of the bottom of the column (3-1), the telescopic end of which movably penetrates the side wall of the column (3-1), and the bottom of the sliding rod (3-5) is a wedge-shaped structure that can slide with the telescopic end of the telescopic cylinder (3-7).

5. The anti-fall welding lifting platform according to claim 2 is characterized in that: The body of the hinge shaft (3-3) is sleeved with a torsion spring used to enable one end of the eccentric stop plate (3-4) to extend out of the slot of the column (3-1).

6. The anti-fall welding lifting platform according to claim 2 is characterized in that: One end of the eccentric stop plate (3-4) extending out of the slot of the upright column (3-1) is in a triangular structure.

7. The anti-fall welding lifting platform according to claim 2 is characterized in that: A limiting column (3-8) for limiting the deflection angle of the eccentric stop plate (3-4) when unlocking is provided above the hinge shaft (3-3) in the cavity of the upright column (3-1).

8. The anti-fall welding lifting platform according to claim 1, characterized in that: The track guide device (4) comprises: The support column (4-1) is vertically and firmly connected to the base (1); The slide rail (4-2) is arranged on one side of the support column (4-1), and the workbench (2) is slidably connected to the slide rail (4-2) via a sliding block.

9. The anti-fall welding lifting platform according to claim 1, characterized in that: The driving device (5) is a telescopic rod, a nut screw mechanism driven by a motor, or a winch driven by a motor.

10. The anti-fall welding lifting platform according to claim 1, characterized in that: The workbench (2) is provided with fences on all four sides.

Images