Gantry crane buffering device for construction

Abstract

The utility model relates to the technical field of hoisting equipment, and discloses a gantry crane buffer device for construction, which comprises a hoisting plate, circular cavities are arranged on two sides outside the hoisting plate, connecting rods are slidably connected in the circular cavities, one end of each connecting rod is fixedly connected with a buffer plate, the middle of each connecting rod is rotatably connected with a pulley, and the pulley is fixedly connected with the hoisting plate. The pulley is slidably connected to the interior of the circular cavity, a sleeve is fixedly connected to the inner top wall of the lifting plate, and a spring is fixedly connected to the inner side of the sleeve. The sliding wheel has the advantages that the outer side of the sliding wheel makes contact with the circular cavity, then the sliding wheel can slide in the circular cavity, at the moment, the spring on the inner wall of the sleeve can be shrunk, the buffering plate and the buffering block can conduct buffering through shrunk of the spring, the clamping plate is fixed to the bottom of the buffering plate, and the clamping plate is fixed to the bottom of the buffering plate. And therefore, the impact force between the clamping plates and the goods can be buffered, and the phenomenon of abrasion between the clamping plates and the goods is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting equipment, and particularly relates to a buffer device for a gantry crane in construction. Background Art

[0002] The gantry crane is a deformation of the bridge crane, commonly known as the gantry crane. In the port, it is mainly used for the loading and unloading operations of outdoor freight yards, material yards, and bulk goods. Its metal structure is like a portal frame. Two supporting legs are installed under the load-bearing main beam, and it can directly walk on the ground track. The two ends of the main beam can have outstretched cantilever beams. The gantry crane has the characteristics of high site utilization rate, large operation range, wide adaptability, strong versatility, etc., and is widely used in port freight yards.

[0003] In the prior art, Chinese Patent Publication No. CN215439356U discloses a gantry crane cable rack and a gantry crane for supporting cable lines, including: at least one bracket, which is arranged in sequence along the moving direction of the gantry crane; a slide rail, which is fixedly connected to the bracket, and the slide rail is arranged along the moving direction of the gantry crane; and at least one sliding device, which is arranged in sequence on the slide rail along the moving direction of the gantry crane, the sliding device is slidably connected to the slide rail, and the sliding device can slide relative to the slide rail along the moving direction of the gantry crane, the cable line is arranged along the moving direction of the gantry crane, and the cable line is sequentially coupled to the sliding device. The utility model can solve the problems of winding, curling, and pulling damage of the existing gantry crane cable lines.

[0004] However, when the gantry crane hoists goods, an impact force will be generated when the goods land on the ground. During this process, both the goods and the hoisting equipment will be worn to varying degrees. Therefore, a buffer device for a gantry crane in construction is needed to solve this problem. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a buffer device for a gantry crane in construction, which has the effect of reducing the wear of the goods and the hoisting equipment during hoisting.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions: A gantry crane buffer device for construction, including a hanging plate. Circular cavities are provided on both sides of the outer part of the hanging plate. A connecting rod is slidably connected inside the circular cavity. One end of the connecting rod is fixedly connected with a buffer plate. A pulley is rotatably connected to the middle of the connecting rod. The pulley is slidably connected inside the circular cavity. The inner top wall of the hanging plate is fixedly connected with a sleeve. A spring is fixedly connected to the inner side of the sleeve. One end of the spring is fixedly connected with a buffer block. The buffer block is fixedly connected to the top of the buffer plate. L-shaped plates are fixedly connected to both sides inside the sleeve. Limit blocks are fixedly connected to both sides of the buffer block. A clamping plate is fixedly connected to the bottom of the buffer plate.

[0007] By adopting the above technical solutions, the goods to be hoisted are installed at the bottom of the clamping plate. When the goods at the bottom of the clamping plate are lowered to the ground, the connecting rod will displace inside the circular cavity. The pulley is rotatably connected to the outside of the connecting rod, and the outside of the pulley contacts the circular cavity, so that the pulley can slide inside the circular cavity. At this time, the spring on the inner wall of the sleeve will be contracted, and the buffer plate and the buffer block will buffer through the contraction of the spring. And the clamping plate is fixed at the bottom of the buffer plate, so that the impact force between the clamping plate and the goods can be buffered, and the phenomenon of wear between the clamping plate and the goods can be reduced. When the goods are hoisted inside the clamping plate, the spring will expand. At this time, the limit blocks on both sides of the buffer block will contact the L-shaped plates, so as to prevent the spring from being overstretched.

[0008] The further setting of the utility model is: The number of the sleeves is several, and several of the sleeves are distributed in a rectangular array.

[0009] By adopting the above technical solutions, multiple sleeves are distributed on the inner top wall of the hanging plate, and multiple springs are connected inside each sleeve.

[0010] The further setting of the utility model is: The number of the circular cavities is several, and several of the circular cavities are distributed on the left and right sides of the hanging plate.

[0011] By adopting the above technical solutions, a connecting rod is slidably connected inside each circular cavity, and multiple connecting rods are distributed on the left and right sides of the buffer plate.

[0012] The further setting of the utility model is: An installation groove is provided inside the clamping plate, and an electromagnet is fixedly installed inside the installation groove.

[0013] By adopting the above technical solutions, when the clamping plate clamps the goods, the electromagnet adsorbs on the top of the goods, so as to clamp the top of the goods.

[0014] A further setting of the present utility model is that both sides of the bottom of the clamping plate are fixedly connected with cylinder brackets, a cylinder is arranged inside the cylinder brackets, and a push rod is arranged at the output end of the cylinder.

[0015] By adopting the above technical solution, the cylinder is installed inside the cylinder bracket, so that the cylinder is fixed on both sides of the bottom of the clamping plate.

[0016] A further setting of the present utility model is that one end of the push rod is fixedly connected with a push plate, the number of the push plates is two, and the two push plates are symmetrical to each other.

[0017] By adopting the above technical solution, the cylinder is started, so that the cylinder drives the push plate to move through the push rod, and thus the left and right sides of the goods can be clamped.

[0018] A further setting of the present utility model is that anti-slip layers are fixedly connected to one side of each of the two push plates, and anti-slip particles are arranged on the outer side of the anti-slip layers.

[0019] By adopting the above technical solution, the anti-slip layers are in contact with the left and right sides of the goods, and the friction force is increased through the anti-slip particles on the outside of the anti-slip layers, thereby improving the clamping stability of the goods.

[0020] A further setting of the present utility model is that suspension rings are fixedly connected to both sides of the top of the suspension plate, a hook is arranged inside the suspension ring, and a chain is fixedly connected to the top of the hook.

[0021] By adopting the above technical solution, during the hoisting process, the hook is hooked into the inside of the suspension ring, the chain is wound up through a roller, and the roller is driven by a motor.

[0022] A further setting of the present utility model is that the number of the hooks is two, a locking pin is rotatably connected inside the two hooks, and clamping grooves are formed on the inner sides of the two hooks.

[0023] By adopting the above technical solution, at the opening of the hook, it is closed by the locking pin. The locking pin is rotated so that the locking pin extends into the clamping groove on the inner side of the hook, and thus the opening of the hook can be closed to prevent the hook from falling off during the hoisting process.

[0024] A further setting of the present utility model is that rubber layers are fixedly connected to the inner sides of a plurality of the circular cavities.

[0025] By adopting the above technical solution, when the pulley slides inside the circular cavity, the friction force is reduced through the rubber layer to prevent the circular cavity from being worn.

[0026] The beneficial effects of the present utility model are:

[0027] 1. In this utility model, through the arrangement among the suspension plate, circular cavity, connecting rod, buffer plate, pulley, sleeve, spring, buffer block, L-shaped plate, limiting block and clamping plate, the connecting rod will displace inside the circular cavity. The pulley is rotatably connected to the outside of the connecting rod, and the outside of the pulley contacts the circular cavity, so that the pulley can slide inside the circular cavity. At this time, the spring on the inner wall of the sleeve will be compressed, and the buffer plate and the buffer block will be buffered by the compression of the spring. And the clamping plate is fixed at the bottom of the buffer plate, so that the impact force between the clamping plate and the goods can be buffered, and the wear between the clamping plate and the goods can be reduced.

[0028] 2. In this utility model, through the arrangement among the electromagnet, cylinder bracket, cylinder, push rod, push plate, anti-slip layer and anti-slip particles, the electromagnet adsorbs on the top of the goods, so that the top of the goods can be clamped. Start the cylinder, so that the cylinder drives the push plate to move through the push rod, so that the left and right sides of the goods can be clamped. The anti-slip layer contacts the left and right sides of the goods, and the anti-slip particles outside the anti-slip layer increase the friction force, so as to improve the clamping stability of the goods. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 It is a schematic structural diagram of the present utility model;

[0031] Figure 2 It is a schematic side view structure diagram inside the suspension plate of the present utility model;

[0032] Figure 3 It is a schematic front view structure diagram inside the circular cavity of the present utility model;

[0033] Figure 4 It is a schematic side view structure diagram inside the sleeve of the present utility model.

[0034] In the figure, 1. Suspension plate; 2. Circular cavity; 3. Connecting rod; 4. Buffer plate; 5. Pulley; 6. Sleeve; 7. Spring; 8. Buffer block; 9. L-shaped plate; 10. Limiting block; 11. Clamping plate; 12. Electromagnet; 13. Cylinder bracket; 14. Cylinder; 15. Push rod; 16. Push plate; 17. Anti-slip layer; 18. Suspension ring; 19. Hook; 20. Chain; 21. Locking pin; 22. Rubber layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] The technical solution of the present utility model will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the scope of protection of the present utility model.

[0036] Refer to Figures 1-4, A gantry crane buffer device for construction, including a hanging plate 1. Circular cavities 2 are opened on both sides of the outside of the hanging plate 1. A connecting rod 3 is slidably connected inside the circular cavity 2. One end of the connecting rod 3 is fixedly connected to a buffer plate 4. A pulley 5 is rotatably connected to the middle of the connecting rod 3. The pulley 5 is slidably connected inside the circular cavity 2. The inner top wall of the hanging plate 1 is fixedly connected to a sleeve 6. A spring 7 is fixedly connected to the inside of the sleeve 6. One end of the spring 7 is fixedly connected to a buffer block 8. The buffer block 8 is fixedly connected to the top of the buffer plate 4. L-shaped plates 9 are fixedly connected to both sides inside the sleeve 6. Limiting blocks 10 are fixedly connected to both sides of the buffer block 8. A clamping plate 11 is fixedly connected to the bottom of the buffer plate 4. Install the goods to be hoisted to the bottom of the clamping plate 11. When the goods at the bottom of the clamping plate 11 are lowered to the ground, the connecting rod 3 will displace inside the circular cavity 2. The pulley 5 is rotatably connected to the outside of the connecting rod 3, and the outside of the pulley 5 contacts the circular cavity 2, so that the pulley 5 can slide inside the circular cavity 2. At this time, the spring 7 on the inner wall of the sleeve 6 will be contracted, and the buffer plate 4 and the buffer block 8 will be buffered by the contraction of the spring 7. And the clamping plate 11 is fixed to the bottom of the buffer plate 4, so that the impact force between the clamping plate 11 and the goods can be buffered, reducing the phenomenon of wear between the clamping plate 11 and the goods. When the goods are hoisted inside the clamping plate 11, the spring 7 will be expanded. At this time, the limiting blocks 10 on both sides of the buffer block 8 will contact the L-shaped plates 9, preventing the spring 7 from being overstretched. The number of sleeves 6 is several, and several sleeves 6 are distributed in a rectangular array. Multiple sleeves 6 are distributed on the inner top wall of the hanging plate 1. Each sleeve 6 is connected with multiple springs 7 inside. The number of circular cavities 2 is several, and several circular cavities 2 are distributed on the left and right sides of the hanging plate 1. One connecting rod 3 is slidably connected inside each circular cavity 2. Multiple connecting rods 3 are distributed on the left and right sides of the buffer plate 4. An installation groove is opened inside the clamping plate 11, and an electromagnet 12 is fixedly installed inside the installation groove. When the clamping plate 11 clamps the goods, it adsorbs on the top of the goods through the electromagnet 12, so as to clamp the top of the goods. Cylinder brackets 13 are fixedly connected to both sides of the bottom of the clamping plate 11. A cylinder 14 is arranged inside the cylinder bracket 13. A push rod 15 is arranged at the output end of the cylinder 14. Install the cylinder 14 inside the cylinder bracket 13, so that the cylinder 14 is fixed to both sides of the bottom of the clamping plate 11. One end of the push rod 15 is fixedly connected to a push plate 16. The number of push plates 16 is two, and the two push plates 16 are symmetrical to each other. Start the cylinder 14, so that the cylinder 14 drives the push plate 16 to move through the push rod 15, so as to clamp the left and right sides of the goods. Anti-slip layers 17 are fixedly connected to one side of each of the two push plates 16. Anti-slip particles are arranged on the outside of the anti-slip layer 17. The anti-slip layer 17 contacts the left and right sides of the goods. The friction is increased through the anti-slip particles on the outside of the anti-slip layer 17, thereby improving the clamping stability of the goods. Hoisting rings 18 are fixedly connected to both sides of the top of the hanging plate 1.Inside the sling ring 18, a hook 19 is provided. At the top of the hook 19, a chain 20 is fixedly connected. During the hoisting process, the hook 19 is hung inside the sling ring 18, and the chain 20 is wound through a roller. The roller is driven by a motor. The number of hooks 19 is two, and a locking pin 21 is rotatably connected inside the two hooks 19. Card slots are provided on the inner sides of the two hooks 19. At the opening of the hook 19, it is closed by the locking pin 21. Rotate the locking pin 21 so that the locking pin 21 extends into the card slot on the inner side of the hook 19, thereby being able to close the opening of the hook 19 and prevent the hook 19 from falling off during hoisting. Inside the several circular cavities 2, a rubber layer 22 is fixedly connected. When the pulley 5 slides inside the circular cavity 2, the rubber layer 22 reduces the friction force to prevent the circular cavity 2 from being worn.

[0037] In the present utility model, the goods to be hoisted are installed at the bottom of the clamping plate 11. When the goods at the bottom of the clamping plate 11 are lowered to the ground, the connecting rod 3 will displace inside the circular cavity 2. The pulley 5 is rotatably connected to the outside of the connecting rod 3, and the outside of the pulley 5 contacts the circular cavity 2, so that the pulley 5 can slide inside the circular cavity 2. At this time, the spring 7 on the inner wall of the sleeve 6 will be contracted, and the buffer plate 4 and the buffer block 8 will be buffered by the contraction of the spring 7. And the clamping plate 11 is fixed to the bottom of the buffer plate 4, thereby being able to buffer the impact force between the clamping plate 11 and the goods and reduce the phenomenon of wear between the clamping plate 11 and the goods. When the goods are hoisted inside the clamping plate 11, the spring 7 will be expanded. At this time, the limiting blocks 10 on both sides of the buffer block 8 will contact the L-shaped plate 9, thereby preventing the spring 7 from being overstretched. When the clamping plate 11 clamps the goods, it is adsorbed on the top of the goods through the electromagnet 12, thereby being able to clamp the top of the goods. Start the cylinder 14, so that the cylinder 14 drives the push plate 16 to move through the push rod 15, thereby being able to clamp the left and right sides of the goods. The anti-slip layer 17 contacts the left and right sides of the goods, and the friction force is increased through the anti-slip particles on the outside of the anti-slip layer 17, thereby improving the clamping stability of the goods. During the hoisting process, the hook 19 is hung inside the sling ring 18, and the chain 20 is wound through a roller. The roller is driven by a motor. At the opening of the hook 19, it is closed by the locking pin 21. Rotate the locking pin 21 so that the locking pin 21 extends into the card slot on the inner side of the hook 19, thereby being able to close the opening of the hook 19 and prevent the hook 19 from falling off during hoisting.

[0038] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A buffer device for a gantry crane for construction, comprising a hanging plate (1), characterized in that: Circular cavities (2) are provided on both sides of the outside of the hanging plate (1), and a connecting rod (3) is slidably connected inside the circular cavity (2), one end of the connecting rod (3) is fixedly connected to a buffer plate (4), the middle part of the connecting rod (3) is rotatably connected to a pulley (5), and the pulley (5) is slidably connected inside the circular cavity (2), the inner top wall of the hanging plate (1) is fixedly connected to a sleeve (6), the inner side of the sleeve (6) is fixedly connected to a spring (7), one end of the spring (7) is fixedly connected to a buffer block (8), and the buffer block (8) is fixedly connected to the top of the buffer plate (4), the inside of the sleeve (6) is fixedly connected to an L plate (9), both sides of the buffer block (8) are fixedly connected to a limiting block (10), and the bottom of the buffer plate (4) is fixedly connected to a clamping plate (11).

2. A buffer device for a construction gantry crane according to claim 1, characterized in that: The number of the sleeves (6) is multiple, and the multiple sleeves (6) are distributed in the form of a rectangular array.

3. A buffer device for a construction gantry crane according to claim 1, characterized in that: The number of the circular cavities (2) is several, and the several circular cavities (2) are distributed on the left and right sides of the hanging plate (1).

4. A buffer device for a construction gantry crane according to claim 1, characterized in that: A mounting groove is provided inside the clamping plate (11), and an electromagnet (12) is fixedly installed inside the mounting groove.

5. The buffer device for a construction gantry crane according to claim 1, characterized in that: Both sides of the bottom of the clamping plate (11) are fixedly connected with a cylinder bracket (13), a cylinder (14) is arranged inside the cylinder bracket (13), and a push rod (15) is arranged at the output end of the cylinder (14).

6. A buffer device for a construction gantry crane according to claim 5, characterized in that: One end of the push rod (15) is fixedly connected to a push plate (16), and there are two push plates (16), and the two push plates (16) are symmetrical to each other.

7. A buffer device for a construction gantry crane according to claim 6, characterized in that: One side of the two push plates (16) is fixedly connected with an anti-skid layer (17), and the outer side of the anti-skid layer (17) is provided with anti-skid particles.

8. The buffer device for a construction gantry crane according to claim 1, characterized in that: Both sides of the top of the hanging plate (1) are fixedly connected with hanging rings (18), a hook (19) is arranged inside the hanging ring (18), and a chain (20) is fixedly connected to the top of the hook (19).

9. A buffer device for a construction gantry crane according to claim 8, characterized in that: There are two hooks (19), and locking pins (21) are rotatably connected inside the two hooks (19), and a card slot is provided on the inner side of the two hooks (19).

10. A buffer device for a construction gantry crane according to claim 3, characterized in that: The inner sides of the plurality of circular cavities (2) are fixedly connected with a rubber layer (22).

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