Lifting appliance with buffer structure

Abstract

The utility model discloses a lifting appliance with a buffer structure, and relates to the technical field of lifting, a fixed ring is fixedly sleeved on a support rod, a control cylinder is movably sleeved on the support rod, the control cylinder is movably sleeved on the fixed ring, a first spring connected with the fixed ring is fixedly arranged in the control cylinder, one end of a first connecting rod is hinged with an abutting rod, and the other end of the first connecting rod is hinged with a second connecting rod. Two second connecting rods are hinged to the positions, located below the first connecting rods, of the side wall of the abutting rod, one ends of the second connecting rods are hinged to the supporting rods, the buffering bottom plate is arranged below the supporting rods, telescopic damping rods are fixedly arranged in the supporting rods, and the lower ends of the telescopic damping rods are fixedly connected with the buffering bottom plate; and a limiting mechanism connected with the buffering bottom plate is arranged on the supporting rod, so that landing buffering can be realized when an article is placed on the ground, and the article is prevented from being damaged due to strong impact between the article and the ground when the article falls to the ground.

Description

Technical Field

[0001] This utility model relates to the field of hoisting technology, specifically to a hoisting device with a buffer structure. Background Technology

[0002] Lifting equipment refers to the device used in lifting machinery to lift heavy objects. It is widely used in the lifting and hoisting industry. When the lifting equipment places the object to be lifted on the ground, the object is prone to a strong impact with the ground, which can damage the object. Existing lifting equipment generally cannot provide cushioning protection for the object during placement. Therefore, there is an urgent need for a lifting equipment with a cushioning structure. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings and deficiencies of the existing technology by providing a reasonably designed lifting device with a buffer structure to solve the aforementioned problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: it includes a support rod and a lifting ring, with a lifting ring provided at the upper end of the support rod;

[0005] It also includes:

[0006] A fixed ring is fixedly sleeved on a support rod, and a control cylinder is movably sleeved on the support rod. The control cylinder is movably sleeved on the fixed ring, and a No. 1 spring connected to the fixed ring is fixedly installed inside the control cylinder.

[0007] There are four first connecting rods, which are hinged to the outer ring wall of the control cylinder with equal rounded corners. One end of the first connecting rod is hinged to an abutment rod. Two second connecting rods are hinged to the side wall of the abutment rod at a position below the first connecting rod. One end of the second connecting rod is hinged to the support rod.

[0008] A buffer base plate is provided below the support rod. A telescopic shock absorber is fixedly installed inside the support rod. The lower end of the telescopic shock absorber is fixedly connected to the buffer base plate. A limiting mechanism connected to the buffer base plate is provided on the support rod.

[0009] Furthermore, the limiting mechanism includes:

[0010] A vertical rod is movably inserted into a support rod. The upper end of the vertical rod is fixedly connected to a lifting ring, and a limit block is fixedly installed at the lower end of the vertical rod. A second spring is fixedly installed inside the support rod, and the upper end of the second spring is fixedly connected to the limit block.

[0011] Two tilting rods are fixedly installed on the left and right sides of the limiting block, and the two tilting rods are movably inserted into the moving slots opened on the left and right sides of the support rod. A movable block is movably installed in the guide slot opened in the tilting rod.

[0012] Two limiting rods are fixedly installed on two movable blocks respectively. The lower end of the limiting rod is engaged in a slot opened on the upper part of the buffer base plate. Two crossbars are fixedly installed on both the left and right sides of the support rod, and the crossbars are movably inserted through the limiting rods.

[0013] Furthermore, a limiting plate is fixedly provided at one end of the crossbar, and the limiting plate is configured in conjunction with the limiting rod.

[0014] Furthermore, a rubber pad is fixedly provided on the side wall of the abutment rod, and the side wall of the rubber pad is provided with anti-slip texture.

[0015] Furthermore, a pull handle is fixedly provided on both the left and right sides of the control cylinder, and a rubber sleeve is fixedly fitted on the pull handle.

[0016] Furthermore, guide bars are movably installed in several strip-shaped grooves with equal rounded corners on the side wall of the support rod, and the guide bars are fixedly connected to the control cylinder.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the lifting device with a buffer structure described in this utility model can achieve landing buffer when placing items on the ground, avoiding damage to the items due to strong impact when they land on the ground. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a cross-sectional view of the support rod, control cylinder, and buffer base plate in this utility model.

[0020] Figure 3 This is an exploded view of the tilting rod, movable block, and limiting rod in this utility model.

[0021] Figure 4 This is an exploded view of the support rod, control cylinder, pull handle, rubber sleeve, and guide strip in this utility model.

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

[0023] Support rod 1, lifting ring 2, fixing ring 3, control cylinder 4, spring No. 1 5, connecting rod No. 1 6, contact rod 7, connecting rod No. 2 8, buffer base plate 9, limiting mechanism 10, vertical rod 10-1, limiting block 10-2, spring No. 2 10-3, tilting rod 10-4, movable block 10-5, limiting rod 10-6, horizontal rod 10-7, moving groove 11, limiting plate 12, rubber pad 13, anti-slip texture 14, pull handle 15, rubber sleeve 16, guide strip 17, telescopic shock absorber rod 18, guide groove 19, slot 20. Detailed Implementation

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] like Figures 1-4 As shown, this specific embodiment adopts the following technical solution: it includes a support rod 1 and a lifting ring 2, with the lifting ring 2 fixedly installed at the upper end of the support rod 1;

[0026] It also includes:

[0027] A fixed ring 3 is fixedly sleeved on a support rod 1. A control cylinder 4 is movably sleeved on the support rod 1, and the control cylinder 4 is movably sleeved on the fixed ring 3. Several strip-shaped grooves with equal rounded corners on the side wall of the support rod 1 are movably provided with guide strips 17, and the guide strips 17 are fixedly connected to the control cylinder 4. The guide strips 17 can provide auxiliary guidance for the movement of the control cylinder 4 on the support rod 1. A first spring 5 connected to the fixed ring 3 is fixedly installed inside the control cylinder 4. Pull handles 15 are fixedly installed on both the left and right sides of the control cylinder 4. Rubber sleeves 16 are fixedly sleeved on the pull handles 15. Pull handles 15 make it easier to pull the control cylinder 4 upward by hand. At the same time, the rubber sleeves 16 can also improve the comfort of pulling the pull handles 15 upward by hand.

[0028] There are four first connecting rods 6, which are hinged to the outer ring wall of the control cylinder 4 with equal rounded corners. One end of the first connecting rod 6 is hinged to an abutment rod 7. Two second connecting rods 8 are hinged to the side wall of the abutment rod 7 below the first connecting rod 6. One end of the second connecting rod 8 is hinged to the support rod 1. A rubber pad 13 is fixedly installed on the side wall of the abutment rod 7. The side wall of the rubber pad 13 is provided with anti-slip texture 14. Through the cooperation of the rubber pad 13 and the anti-slip texture 14, the friction between the abutment rod 7 and the suspended object can be effectively increased, making the suspended object more stable in the suspended state.

[0029] A buffer base plate 9 is provided below the support rod 1. A telescopic shock absorber 18 is fixedly installed inside the support rod 1. The lower end of the telescopic shock absorber 18 is fixedly connected to the buffer base plate 9. A limiting mechanism 10 connected to the buffer base plate 9 is provided on the support rod 1.

[0030] The limiting mechanism 10 includes:

[0031] A vertical rod 10-1 is movably inserted into a support rod 1. The upper end of the vertical rod 10-1 is fixedly connected to a lifting ring 2. A limit block 10-2 is fixedly installed at the lower end of the vertical rod 10-1. A second spring 10-3 is fixedly installed inside the support rod 1. The upper end of the second spring 10-3 is fixedly connected to the limit block 10-2.

[0032] Two inclined rods 10-4 are fixedly installed on the left and right sides of the limiting block 10-2, and the two inclined rods 10-4 are movably inserted into the moving slots 11 opened on the left and right sides of the support rod 1, and the movable block 10-5 is movably installed in the guide slot 19 opened in the inclined rod 10-4.

[0033] Two limiting rods 10-6 are fixedly installed on two movable blocks 10-5 respectively. The lower end of the limiting rod 10-6 is engaged in the slot 20 opened on the upper part of the buffer base plate 9. Two crossbars 10-7 are fixedly installed on both the left and right sides of the support rod 1. The crossbars 10-7 are movably inserted through the limiting rods 10-6. The engagement of the limiting rods 10-6 in the slots 20 can limit the buffer base plate 9 and prevent the telescopic shock absorber rod 18 from extending when the lifting device is placed inside the suspended object. A limiting plate 12 is fixedly installed at one end of the crossbar 10-7 and is configured to cooperate with the limiting rod 10-6. The limiting plate 12 can provide auxiliary restriction on the extreme position of the limiting rod 10-6 on the crossbar 10-7.

[0034] When using this utility model, the lifting ring 2 is connected to the lifting equipment using a hook or rope. Then, the control cylinder 4 is pulled upwards, stretching the first spring 5. The control cylinder 4 drives one end of the first connecting rod 6 upwards, which in turn drives the abutment rod 7 upwards. With the cooperation of the second connecting rod 8, the first connecting rod 6 remains vertical and moves towards the support rod 1. The lifting device is then placed inside the cylindrical object to be lifted, with the buffer plate 9 in contact with the ground. The control cylinder 4 is then released, causing the first spring 5 to shorten and move the control cylinder 4 downwards on the support rod 1. With the cooperation of the first connecting rod 6 and the second connecting rod 8, the abutment rod 7 comes into contact with the inner wall of the object to be lifted. The downward pulling force applied by the first spring 5 to the control cylinder 4 causes the abutment rod 7 to... A huge frictional force is generated between the lifting ring 2 and the inner wall of the suspended object. Then the lifting ring 2 is pulled upward, which drives the vertical rod 10-1 to move upward and stretch the second spring 10-3. The vertical rod 10-1 drives the limiting block 10-2 to move upward within the support rod 1. Then the limiting block 10-2 can drive the support rod 1 to move upward, thus lifting the suspended object. During the movement of the limiting rod 10-6 within the support rod 1, it will drive the tilting rod 10-4 to move upward. At this time, the movable block 10-5 can drive the limiting rod 10-6 to move away from the support rod 1, so that the lower end of the limiting rod 10-6 is disengaged from the slot 20. Then the telescopic shock absorber rod 18 extends and drives the buffer base plate 9 to move downward from inside the suspended object. At the same time, the lower end of the limiting rod 10-6 is completely disengaged from the slot 20.

[0035] When the suspended item needs to be placed on the ground, the buffer plate 9 will first come into contact with the ground. As the suspended item descends, the telescopic shock absorber 18 will shorten, thus buffering the fall of the suspended item. At the same time, the lower end of the limiting rod 10-6 will be inserted into the slot 20. After the suspended item comes into contact with the ground, the lifting ring 2 will continue to be lowered, causing the second spring 10-3 to shorten and drive the limiting block 10-2, the vertical rod 10-1, and the lifting ring 2 to move downwards, so that the lifting ring 2 comes into contact with the support rod 1. The limiting block 10-2 will drive the tilting rod 10-4 to move downwards. At this time, the movable block 10-5 can drive the limiting rod 10-6 to move closer to the support rod 1, so that the lower end of the limiting rod 10-6 is engaged with the slot 20.

[0036] Compared with the prior art, the beneficial effects of this utility model are:

[0037] 1. With the cooperation of the buffer base plate 9 and the telescopic shock absorber rod 18, the items can be cushioned when placed on the ground, avoiding damage caused by strong impact when the items land on the ground;

[0038] 2. By cooperating with the limiting mechanism 10, utilizing the locking of the limiting rod 10-6 in the slot 20, and the linkage effect of the vertical rod 10-1, the limiting block 10-2, the second spring 10-3, the tilting rod 10-4 and the movable block 10-5, the extension of the telescopic shock absorber 18 when the lifting device is placed inside the suspended item can be avoided, thus preventing the normal placement of the lifting device inside the suspended item.

[0039] 3. By pulling the handle 15, it is easier to pull the control cylinder 4 upwards by hand. At the same time, the rubber sleeve 16 can also improve the comfort of pulling the handle 15 upwards by hand.

[0040] 4. The combination of rubber pad 13 and anti-slip texture 14 can effectively increase the friction between the contact rod 7 and the suspended object, making the suspended object more stable in the suspended state.

[0041] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lifting device with a buffer structure, comprising a support rod (1) and a lifting ring (2), wherein the upper end of the support rod (1) is provided with a lifting ring (2); Its features are: It also includes: A fixed ring (3) is fixedly sleeved on a support rod (1). A control cylinder (4) is movably sleeved on the support rod (1) and the control cylinder (4) is movably sleeved on the fixed ring (3). A first spring (5) connected to the fixed ring (3) is fixedly installed inside the control cylinder (4). There are four first connecting rods (6), which are hinged to the outer ring wall of the control cylinder (4) with equal rounded corners. One end of the first connecting rod (6) is hinged to an abutment rod (7). Two second connecting rods (8) are hinged to the side wall of the abutment rod (7) at a position below the first connecting rod (6). One end of the second connecting rod (8) is hinged to the support rod (1). A buffer base plate (9) is located below a support rod (1). A telescopic shock absorber (18) is fixedly installed inside the support rod (1). The lower end of the telescopic shock absorber (18) is fixedly connected to the buffer base plate (9). A limiting mechanism (10) connected to the buffer base plate (9) is provided on the support rod (1).

2. The lifting device with a buffer structure according to claim 1, characterized in that: The limiting mechanism (10) includes: A vertical rod (10-1) is movably inserted into a support rod (1). The upper end of the vertical rod (10-1) is fixedly connected to a lifting ring (2). A limit block (10-2) is fixedly installed at the lower end of the vertical rod (10-1). A second spring (10-3) is fixedly installed inside the support rod (1). The upper end of the second spring (10-3) is fixedly connected to the limit block (10-2). Two inclined rods (10-4) are fixedly installed on the left and right sides of the limiting block (10-2), and the two inclined rods (10-4) are movably inserted into the moving slots (11) opened on the left and right sides of the support rod (1). A movable block (10-5) is movably installed in the guide slot (19) opened in the inclined rod (10-4). There are two limiting rods (10-6), which are fixedly installed on two movable blocks (10-5) respectively. The lower end of the limiting rod (10-6) is locked in the slot (20) opened on the upper part of the buffer base plate (9). Two crossbars (10-7) are fixedly installed on both the left and right sides of the support rod (1). The crossbars (10-7) are movably inserted through the limiting rod (10-6).

3. A lifting device with a buffer structure according to claim 2, characterized in that: One end of the crossbar (10-7) is fixedly provided with a limiting plate (12), and the limiting plate (12) is configured to cooperate with the limiting rod (10-6).

4. A lifting device with a buffer structure according to claim 1, characterized in that: A rubber pad (13) is fixedly installed on the side wall of the abutment rod (7), and anti-slip texture (14) is provided on the side wall of the rubber pad (13).

5. A lifting device with a buffer structure according to claim 1, characterized in that: The control cylinder (4) is fixedly provided with a pull handle (15) on both the left and right sides, and a rubber sleeve (16) is fixedly fitted on the pull handle (15).

6. A lifting device with a buffer structure according to claim 1, characterized in that: The support rod (1) has several slots with rounded corners on its side wall, each containing a guide bar (17), which is fixedly connected to the control cylinder (4).

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