Safety buffer protection device for lifting equipment

Abstract

The utility model discloses a lifting equipment safety buffer protection device which comprises a base, a lifting plate is movably installed in the base, fixing blocks are fixedly installed at the top of the lifting plate in a surrounding mode, round rods are fixedly installed between the fixing blocks, sliding blocks are movably connected to the surfaces of the round rods in a sleeved mode, and the sliding blocks are fixedly installed on the top of the lifting plate. Buffering springs are fixedly installed between the sliding blocks and the fixing blocks, the inner surfaces of the buffering springs are movably connected with the outer surfaces of the round rods, and buffering rods are hinged to the tops of the sliding blocks. According to the safety buffer protection device for the lifting equipment, in the daily use process, in the falling process of the lifting equipment, the bottom of the lifting equipment makes contact with a top plate firstly, at the moment, the top plate descends in the base, then a buffer rod is driven to slide, and then a sliding block is driven to extrude a buffer spring; and meanwhile, the lifting plate can drive a sliding sleeve to slide in a sliding groove, and then a reset spring is extruded.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting equipment, in particular to a safety buffer protection device for lifting equipment. Background Art

[0002] Lifting equipment is a multifunctional lifting mechanical equipment, which can be divided into fixed and mobile types, guide rail type, curved arm type, scissors type, chain type, loading and unloading platform, etc. The lifting equipment needs to be buffered during the falling process, otherwise it will cause damage to the lifting equipment. Therefore, a lifting equipment safety buffer protection device is needed.

[0003] When operators perform buffering work on lifting equipment, they often use corresponding lifting equipment safety buffer protection devices. Although the existing devices can achieve the purpose of buffering, the buffering method is single during actual use, and the buffering effect achieved is poor, which may cause certain damage to the equipment. In addition, vertical buffering methods are mostly used, and multi-directional force unloading buffering cannot be performed, which reduces practicality. Utility Model Content

[0004] The purpose of the utility model is to provide a safety buffer protection device for lifting equipment to solve the problem proposed in the above background technology that operators often use corresponding safety buffer protection devices for lifting equipment when performing buffering work on lifting equipment. Although the existing devices can achieve the purpose of buffering, the buffering method is single during actual use, and the buffering effect achieved is poor, which may cause certain damage to the equipment, and the vertical buffering method is mostly used, and multi-directional force unloading buffering cannot be performed, which reduces the practicality.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a safety buffer protection device for lifting equipment, comprising a base, a lifting plate movably installed inside the base, a fixed block fixedly installed around the top of the lifting plate, round rods fixedly installed between the fixed blocks, sliders movably sleeved on the surfaces of the round rods, buffer springs fixedly installed between the sliders and the fixed blocks, the inner surfaces of the buffer springs movably connected to the outer surfaces of the round rods, buffer rods hinged on the tops of the sliders, and a top plate hinged on the tops of the buffer rods.

[0006] Preferably, a slide groove is provided around the inside of the base, a round shaft is fixedly installed inside the slide groove, a sliding sleeve is movably sleeved on the surface of the round shaft, a return spring is fixedly installed between the sliding sleeve and the slide groove, the inner surface of the return spring is movably connected to the outer surface of the round shaft, and the outer surface of the sliding sleeve is fixedly connected to the outer surface of the lifting plate.

[0007] Preferably, a strip groove is provided at the inner bottom end of the base, a fixed rod is fixedly installed inside the strip groove, movable blocks are movably sleeved on both sides of the surface of the fixed rod, a unloading spring is fixedly installed between the movable block and the strip groove, the inner surface of the unloading spring is movably connected to the outer surface of the fixed rod, and a movable rod is hinged between the lifting plate and the movable block.

[0008] Preferably, a fixing sleeve is fixedly installed on both sides of the inner bottom end of the base, a fixing spring located inside the fixing sleeve is fixedly installed on both sides of the inner bottom end of the base, a circular plate is fixedly installed on the top of the fixing spring, and the outer surface of the circular plate is movably connected to the inner surface of the fixing sleeve.

[0009] Preferably, a lifting rod is fixedly mounted on the top of the fixing sleeve, the bottom of the lifting rod passes through the fixing sleeve and is fixedly connected to the top of the circular plate, and the top of the lifting rod is fixedly connected to the bottom of the lifting plate.

[0010] Preferably, the lifting rod is circular in shape, there are four lifting rods, and the four lifting rods have the same size.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The safety buffer protection device for lifting equipment has the following advantages: during daily use, when the lifting equipment is falling, its bottom will first contact the top plate, and then the top plate will descend inside the base, thereby driving the buffer rod to slide, and then driving the slider to squeeze the buffer spring, thereby unloading the impact force in multiple directions. At the same time, the lifting plate will drive the sliding sleeve to slide inside the sliding groove, thereby squeezing the reset spring to put it in a compressed state, so that longitudinal buffering can be performed. This method can perform multiple buffering on the lifting equipment, thereby reducing damage to the lifting equipment.

[0013] The safety buffer protection device for lifting equipment, during daily use, when the lifting plate slides, it will squeeze the movable rod, and at this time it will drive the two moving blocks to move opposite to each other inside the strip groove, and then squeeze the unloading spring to put it in a compressed state. The set unloading spring and movable rod can be used to buffer the impact force laterally, thereby increasing its practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of the utility model;

[0015] Figure 2 It is a front cross-sectional view of the utility model;

[0016] Figure 3 For the utility model Figure 2 A partial enlarged view of the middle part;

[0017] Figure 4 It is a side sectional view of the utility model.

[0018] In the figure: 1. base; 2. lifting plate; 3. fixed block; 4. round rod; 5. slider; 6. buffer spring; 7. buffer rod; 8. top plate; 9. slide groove; 10. round shaft; 11. sliding sleeve; 12. return spring; 13. strip groove; 14. fixed rod; 15. moving block; 16. unloading spring; 17. movable rod; 18. fixed sleeve; 19. fixed spring; 20. round plate; 21. lifting rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 The utility model provides a technical solution: a safety buffer protection device for lifting equipment, including a base 1, a lifting plate 2 is movably installed inside the base 1, a fixed block 3 is fixedly installed around the top of the lifting plate 2, round rods 4 are fixedly installed between the fixed blocks 3, and sliders 5 are movably sleeved on the surfaces of the round rods 4. Buffer springs 6 are fixedly installed between the sliders 5 and the fixed blocks 3. When the sliders 5 slide on the surfaces of the round rods 4, the buffer springs 6 are squeezed, so that they are in a compressed state, and the impact force can be buffered in multiple directions. The inner surface of the buffer spring 6 is movably connected to the outer surface of the round rod 4, and the top of the sliders 5 is hinged with buffer rods 7, and the top of the buffer rod 7 is hinged with a top plate 8, which will squeeze the buffer rod 7 when it is impacted, and a sliding groove 9 is arranged around the inside of the base 1, and a round shaft 10 is fixedly installed inside the sliding groove 9, and a sliding sleeve 11 is movably sleeved on the surface of the round shaft 10, and a return spring 12 is fixedly installed between the sliding sleeve 11 and the sliding groove 9, and the inner surface of the return spring 12 is movably connected to the outer surface of the round shaft 10, and the outer surface of the sliding sleeve 11 is fixedly connected to the outer surface of the lifting plate 2. When the lifting plate 2 slides, it drives the sliding sleeve 11 to slide inside the sliding groove 9, thereby squeezing the return spring 12, making it in a compressed state, and thus performing longitudinal buffering.

[0021] A strip groove 13 is provided at the inner bottom end of the base 1, and a fixed rod 14 is fixedly installed inside the strip groove 13. Moving blocks 15 are movably sleeved on both sides of the surface of the fixed rod 14. The outer surface of the moving block 15 is movably connected to the inner surface of the strip groove 13. A force unloading spring 16 is fixedly installed between the moving block 15 and the strip groove 13. When the moving block 15 slides inside the strip groove 13, the force unloading spring 16 is squeezed. The inner surface of the force unloading spring 16 is movably connected to the outer surface of the fixed rod 14, and a movable rod 17 is hinged between the lifting plate 2 and the moving block 15. When the lifting plate 2 slides, it will drive the movable rod 17 to slide, thereby driving the two moving blocks 15 to slide synchronously. Fixed sleeves 18 are fixedly installed on both sides of the inner bottom end of the base 1. Fixed springs 19 located inside the fixed sleeve 18 are fixedly installed on both sides of the inner bottom end of the base 1. The outer surface of the spring 19 is movably connected to the inner surface of the fixed sleeve 18, and a circular plate 20 is fixedly installed on the top of the fixed spring 19, and the outer surface of the circular plate 20 is movably connected to the inner surface of the fixed sleeve 18. When the circular plate 20 slides inside the fixed sleeve 18, the fixed spring 19 will be squeezed, and a lifting rod 21 is fixedly installed on the top of the fixed sleeve 18. The bottom of the lifting rod 21 passes through the fixed sleeve 18 and is fixedly connected to the top of the circular plate 20, and the top of the lifting rod 21 is fixedly connected to the bottom of the lifting plate 2. When the lifting plate 2 slides, the lifting rod 21 will drive the lifting rod 21 to slide synchronously. The shape of the lifting rod 21 is circular, the number of the lifting rods 21 is four, and the four lifting rods 21 have the same size. The outer surface of the lifting rod 21 and the inner surface of the circular plate 20 are both smooth, which can make the lifting rod 21 slide more smoothly inside the circular plate 20 and reduce the occurrence of jams.

[0022] Working principle: when it is necessary to buffer the lifting equipment, first, during the falling process of the lifting equipment, its bottom will first contact the top plate 8. At this time, the top plate 8 will drop inside the base 1, thereby driving the buffer rod 7 to slide, and then driving the slider 5 to squeeze the buffer spring 6, thereby unloading the impact force in multiple directions. At the same time, the lifting plate 2 will drive the sliding sleeve 11 to slide inside the sliding groove 9, and then squeeze the reset spring 12 to make it in a compressed state, so that longitudinal buffering can be performed. Secondly, when the lifting plate 2 slides, it will drive the lifting rod 21 to slide synchronously. At this time, it will drive the circular plate 20 to slide inside the fixed sleeve 18, and then squeeze the fixed spring 19, so as to perform longitudinal unloading. At the same time, it will squeeze the movable rod 17, and at this time, it will drive the two moving blocks 15 to move oppositely inside the strip groove 13, and then squeeze the unloading spring 16, so as to perform lateral unloading buffering, thereby increasing its practicality.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety buffer protection device for lifting equipment, comprising a base (1), characterized in that: A lifting plate (2) is movably installed inside the base (1), a fixed block (3) is fixedly installed around the top of the lifting plate (2), round rods (4) are fixedly installed between the fixed blocks (3), a sliding block (5) is movably sleeved on the surface of the round rod (4), a buffer spring (6) is fixedly installed between the sliding block (5) and the fixed block (3), the inner surface of the buffer spring (6) is movably connected to the outer surface of the round rod (4), the top of the sliding block (5) is hinged with a buffer rod (7), and the top of the buffer rod (7) is hinged with a top plate (8).

2. A safety buffer protection device for lifting equipment according to claim 1, characterized in that: The base (1) is provided with a sliding groove (9) around its interior, a round shaft (10) is fixedly installed inside the sliding groove (9), a sliding sleeve (11) is movably sleeved on the surface of the round shaft (10), a return spring (12) is fixedly installed between the sliding sleeve (11) and the sliding groove (9), the inner surface of the return spring (12) is movably connected to the outer surface of the round shaft (10), and the outer surface of the sliding sleeve (11) is fixedly connected to the outer surface of the lifting plate (2).

3. A safety buffer protection device for lifting equipment according to claim 1, characterized in that: A strip groove (13) is provided at the inner bottom end of the base (1), a fixed rod (14) is fixedly installed inside the strip groove (13), moving blocks (15) are movably sleeved on both sides of the surface of the fixed rod (14), a force unloading spring (16) is fixedly installed between the moving block (15) and the strip groove (13), the inner surface of the force unloading spring (16) is movably connected to the outer surface of the fixed rod (14), and a movable rod (17) is hinged between the lifting plate (2) and the moving block (15).

4. A safety buffer protection device for lifting equipment according to claim 1, characterized in that: A fixing sleeve (18) is fixedly mounted on both sides of the inner bottom end of the base (1), a fixing spring (19) located inside the fixing sleeve (18) is fixedly mounted on both sides of the inner bottom end of the base (1), a circular plate (20) is fixedly mounted on the top of the fixing spring (19), and the outer surface of the circular plate (20) is movably connected to the inner surface of the fixing sleeve (18).

5. A safety buffer protection device for lifting equipment according to claim 4, characterized in that: A lifting rod (21) is fixedly mounted on the top of the fixing sleeve (18), the bottom of the lifting rod (21) passes through the fixing sleeve (18) and is fixedly connected to the top of the circular plate (20), and the top of the lifting rod (21) is fixedly connected to the bottom of the lifting plate (2).

6. A safety buffer protection device for lifting equipment according to claim 5, characterized in that: The lifting rod (21) is circular in shape, there are four lifting rods (21), and the four lifting rods (21) have the same size.

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