Buffering structure of European-style electric hoist

Abstract

The utility model discloses a buffer structure of a European-style electric hoist, which relates to the technical field of buffer structures of European-style electric hoists, and comprises a hoist body, specifically, the back of the hoist body is fixedly connected with a walking mechanism, and the left and right side walls of the hoist body are fixedly connected with square clamping seats; a first clamping groove and a second clamping groove are formed in the top of the clamping base, the first clamping groove is located in the rear half side of the clamping base, the second clamping groove is located in the front half side of the clamping base, a partition plate is arranged between the first clamping groove and the second clamping groove, a through hole is formed in the middle of the partition plate, the first clamping groove and the second clamping groove are both square, and a shifting rod is slidably connected to the inner wall of the second clamping groove. The top of the shifting rod is higher than the top of the clamping base, the shifting rod is square and located in the second clamping groove, the bottom of the shifting rod is fixedly connected with a matching end, and the front face of the shifting rod is fixedly connected with a first spring.

Description

Technical Field

[0001] The utility model relates to the technical field of buffer structures of European electric hoists, and specifically relates to a buffer structure of a European electric hoist. Background Technique

[0002] In recent years, with the rapid development of China's industry, cranes used for lifting large heavy objects have also developed rapidly; currently, there are many types of cranes applied to different occasions in the Chinese market. However, the structures of Chinese cranes are complex, especially the installation of electric hoists is rather cumbersome, thus reducing the production efficiency during the production process. The large-sized electric hoists are restricted in different application places; therefore, in order to simplify the installation work of electric hoists and improve the aesthetic degree of traditional electric hoists, China has introduced European electric hoists from the West. The European electric hoist is a kind of equipment produced after summarizing the advanced technologies of European cranes and improving the original electric hoist. Due to different layout forms and transmission mechanisms, the size of the European electric hoist is reduced compared with that of the traditional electric hoist, thus achieving the technical effect of low headroom.

[0003] A deceleration structure of a European electric hoist for a single-girder crane disclosed in the Chinese Utility Model Patent Application Publication Specification CN220866938U, although solves the problem of lack of safety, still has the following disadvantages: First, due to the low fatigue strength of the spring, the spring needs to be replaced after being used for a period of time, and it is rather troublesome to disassemble the deceleration structure of the above-mentioned single-girder crane European electric hoist, which is not conducive to the replacement of the spring; Second, although the above-mentioned deceleration structure of the single-girder crane European electric hoist slows down the impact of the electric hoist on the crane beam body, only a single spring is used for deceleration, the structure is rather simple, and the practicability is not strong. The electric hoist will still cause the goods to rebound and shake due to the impact on the crane beam body. Content of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides a buffer structure of a European electric hoist, which solves the problems put forward in the above background technique.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the utility model is realized by the following technical solutions: A buffer structure of a European electric hoist, including a hoist body, a traveling mechanism is fixedly connected to the back of the hoist body, clamping seats are fixedly connected to both the left and right side walls of the hoist body, the clamping seats are square, a first clamping groove and a second clamping groove are opened at the top of the clamping seat, the first clamping groove is located at the rear half side of the clamping seat, the second clamping groove is located at the front half side of the clamping seat, a partition is provided between the first clamping groove and the second clamping groove, a through hole is provided in the middle of the partition, both the first clamping groove and the second clamping groove are square, a shifting rod is slidably connected to the inner wall of the second clamping groove, the top of the shifting rod is higher than the top of the clamping seat, the shifting rod is square and located inside the second clamping groove, a matching end is fixedly connected to the bottom of the shifting rod, a first spring is fixedly connected to the front of the shifting rod, and one end of the first spring away from the shifting rod is fixedly connected to the inner wall of the second clamping groove.

[0008] Optionally, the matching end is slidably connected to the inner wall of the through hole, the top of the back surface of the matching end is wedge-shaped with the front higher than the rear, a clamping end is slidably connected to the inner wall of the first clamping groove, the bottom of the front surface of the clamping end is wedge-shaped with the front higher than the right and the angle is the same as the top of the back surface of the matching end, the clamping end is located inside the first clamping groove and a clamping rod is fixedly connected to the top of the clamping end.

[0009] Optionally, the two clamping seats are symmetrically distributed on the left and right sides of the hoist body, the clamping rod is square and slidably connected to the inner wall of the first clamping groove, fixing seats are fixedly connected to the left and right outer sides of the two clamping rods, there are two fixing seats and they correspond to the clamping seats one by one, the inner side wall of the fixing seat is in close contact with the outer side wall of the clamping seat, a connecting plate is fixedly connected to the bottom of the clamping seat, the connecting plate is located directly below the fixing seat, and the top of the connecting plate is in close contact with the bottom of the fixing seat.

[0010] Optionally, first grooves and second grooves are opened on both the left and right outer side walls of the two fixing seats, the first groove is located above the second groove, the size and shape of the first groove are the same as those of the second groove, a first outer rod is fixedly connected to the rear inner wall of the first groove, the first outer rod is circular, a first sliding groove is opened on the front of the first outer rod, a first inner rod is slidably connected to the inner wall of the first sliding groove, a second spring is fixedly connected to the back of the first inner rod, and one end of the second spring away from the first inner rod is fixedly connected to the inner wall of the first sliding groove.

[0011] Optionally, the inner wall of the front side of the second groove is fixedly connected with a second outer rod, the size and shape of the second outer rod are the same as those of the first outer rod, a second sliding groove is formed in the back surface of the second outer rod, a third spring is fixedly connected to the inner wall of the second sliding groove, the back surface of the third spring is fixedly connected with a second inner rod, the second inner rod is slidably connected with the inner wall of the second sliding groove, the back surface of the second inner rod is fixedly connected with a second connecting seat, the front surface of the first inner rod is fixedly connected with a first connecting seat, and both the first connecting seat and the second connecting seat are in a concave shape.

[0012] Optionally, third outer rods are rotatably connected to the inner walls of both the first connecting seat and the second connecting seat, the inner side wall of the third outer rod is arc-shaped, a third sliding groove is formed in the outer side wall of the third outer rod, a fourth spring is fixedly connected to the inner wall of the third sliding groove, the outer end of the fourth spring is fixedly connected with a third inner rod, fixing plates are rotatably connected to both the upper and lower side walls of the third inner rod, a buffer plate is fixedly connected to the outer side wall of the fixing plate, and the buffer plate is made of rubber.

[0013] (III) Beneficial effects

[0014] The utility model provides a buffer structure for a European electric hoist, which has the following beneficial effects:

[0015] 1. For the buffer structure of the European electric hoist, through the cooperation setting of the connecting plate and the clamping rod, the buffer structure of the European electric hoist has the effect of fixing the fixed seat and the hoist body. Through the cooperation setting of the clamping end and the mating end, the clamping rod can be quickly withdrawn from the first clamping groove during use, so as to play a role in quickly separating the fixed seat from the hoist body, achieving the purpose of facilitating the replacement of internal parts of the buffer structure.

[0016] 2. For the buffer structure of the European electric hoist, through the setting that the buffer plate is made of rubber, the buffer structure of the European electric hoist has the effect of initially reducing the impact force generated by the collision between the electric hoist and the crane. Through the cooperation setting of the second spring, the third spring and the fourth spring, the impact force generated by the collision between the electric hoist and the crane can be further reduced during use, so as to play a role in preventing the electric hoist and the crane from being damaged and reducing the shaking of the goods driven by the electric hoist. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional schematic diagram of the whole utility model;

[0018] Figure 2 is a front schematic diagram of the whole utility model;

[0019] Figure 3 is a top schematic diagram of the whole utility model;

[0020] Figure 4 It is a left - side schematic view of the left fixing seat of the present utility model;

[0021] Figure 5 It is a left - side schematic view of the interior of the left card seat of the present utility model.

[0022] In the figure: 1. Gourd body; 2. Traveling mechanism; 3. Card seat; 4. First card slot; 5. Second card slot; 6. Partition board; 7. Poking rod; 8. Matching end; 9. First spring; 10. Clamping end; 11. Clamping rod; 12. Fixing seat; 13. First groove; 14. Second groove; 15. First outer rod; 16. First sliding groove; 17. Second spring; 18. First inner rod; 19. First connecting seat; 20. Second outer rod; 21. Second sliding groove; 22. Third spring; 23. Second inner rod; 24. Second connecting seat; 25. Third outer rod; 26. Third sliding groove; 27. Third inner rod; 28. Fixed plate; 29. Buffer plate; 30. Connecting plate; 31. Fourth spring. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0024] Embodiment 1:

[0025] Please refer to Figures 1 to 5, the present utility model provides a technical solution: a buffer structure of a European electric hoist, including a hoist body 1. A traveling mechanism 2 is fixedly connected to the back of the hoist body 1. Clamping seats 3 are fixedly connected to both the left and right side walls of the hoist body 1. The clamping seats 3 are square. A first clamping groove 4 and a second clamping groove 5 are formed at the top of the clamping seat 3. The first clamping groove 4 is located at the rear half of the clamping seat 3, and the second clamping groove 5 is located at the front half of the clamping seat 3. A partition 6 is provided between the first clamping groove 4 and the second clamping groove 5. A through hole is provided in the middle of the partition 6. Both the first clamping groove 4 and the second clamping groove 5 are square. A lever 7 is slidably connected to the inner wall of the second clamping groove 5. The top of the lever 7 is higher than the top of the clamping seat 3. The lever 7 is square and located inside the second clamping groove 5. A matching end 8 is fixedly connected to the bottom of the lever 7. A first spring 9 is fixedly connected to the front of the lever 7. One end of the first spring 9 away from the lever 7 is fixedly connected to the inner wall of the second clamping groove 5. The matching end 8 is slidably connected to the inner wall of the through hole. The top of the back of the matching end 8 is wedge-shaped with the front being higher than the rear. A clamping end 10 is slidably connected to the inner wall of the first clamping groove 4. The bottom of the front of the clamping end 10 is wedge-shaped with the front being higher than the right side and the angle is the same as the top of the back of the matching end 8. The clamping end 10 is located inside the first clamping groove 4 and a clamping rod 11 is fixedly connected to the top of the clamping end 10. The two clamping seats 3 are symmetrically distributed on the left and right sides of the hoist body 1. The clamping rod 11 is square and is slidably connected to the inner wall of the first clamping groove 4. Fixed seats 12 are fixedly connected to the left and right outer sides of the two clamping rods 11. There are two fixed seats 12 and they correspond to the clamping seats 3 one by one. The inner side wall of the fixed seat 12 is in tight contact with the outer side wall of the clamping seat 3. A connecting plate 30 is fixedly connected to the bottom of the clamping seat 3. The connecting plate 30 is located directly below the fixed seat 12. The top of the connecting plate 30 is in tight contact with the bottom of the fixed seat 12.

[0026] During use, due to the low fatigue strength of the spring, the spring needs to be replaced after a period of use. However, the existing deceleration structure of the European electric hoist of the single-girder crane is rather troublesome to disassemble, which is not conducive to the replacement of the spring. Therefore, there is a buffer structure for the European electric hoist. When the buffer structure needs to be disassembled and repaired after the electric hoist is used multiple times, press the lever 7 and slide it forward from the back along the inside of the second slot 5, so that the first spring 9 contracts. At this time, the mating end 8 slides inside the through hole and into the second slot 5. Subsequently, move the clamping end 10 and the clamping rod 11 upward. When the clamping end 10 moves out of the first slot 4, the fixed seat 12 is separated from the hoist body 1, so as to repair and replace the components inside the fixed seat 12. Through the cooperative setting of the clamping end 10 and the mating end 8, the purpose of facilitating the replacement of the internal parts of the buffer structure is achieved. After the components inside the fixed seat 12 are replaced, align the clamping rod 11 and the clamping end 10 and move them downward from above. When the clamping end 10 passes by the mating end 8, due to the setting that both the bottom of the front surface of the clamping end 10 and the top of the back surface of the mating end 8 are wedge-shaped with the front being higher than the right and having the same angle, when the clamping end 10 moves downward, the mating end 8 can be pushed forward into the second slot 5 due to the extrusion of the clamping end 10. When the clamping end 10 completely enters the first slot 4, the mating end 8 rebounds into the first slot 4 with the resilience of the first spring 9, blocking the movement of the clamping end 10, so that the clamping rod 11 and the clamping end 10 are fixed inside the first slot 4. Through the cooperative setting of the connecting plate 30 and the clamping seat 3, the fixed seat 12 can be prevented from shaking.

[0027] Embodiment 2:

[0028] Please refer to Figures 1 to 4, the present utility model provides a technical solution: a buffer structure for a European electric hoist. First grooves 13 and second grooves 14 are provided on the left and right outer side walls of two fixed seats 12. The first groove 13 is located above the second groove 14. The size and shape of the first groove 13 are the same as those of the second groove 14. The rear inner wall of the first groove 13 is fixedly connected with a first outer rod 15. The first outer rod 15 is circular. A first sliding groove 16 is provided on the front surface of the first outer rod 15. A first inner rod 18 is slidably connected to the inner wall of the first sliding groove 16. A second spring 17 is fixedly connected to the back surface of the first inner rod 18. One end of the second spring 17 away from the first inner rod 18 is fixedly connected to the inner wall of the first sliding groove 16. The front inner wall of the second groove 14 is fixedly connected with a second outer rod 20. The size and shape of the second outer rod 20 are the same as those of the first outer rod 15. A second sliding groove 21 is provided on the back surface of the second outer rod 20. A third spring 22 is fixedly connected to the inner wall of the second sliding groove 21. The back surface of the third spring 22 is fixedly connected with a second inner rod 23. The second inner rod 23 is slidably connected to the inner wall of the second sliding groove 21. A second connecting seat 24 is fixedly connected to the back surface of the second inner rod 23. A first connecting seat 19 is fixedly connected to the front surface of the first inner rod 18. Both the first connecting seat 19 and the second connecting seat 24 are in a concave shape. A third outer rod 25 is rotatably connected to the inner walls of the first connecting seat 19 and the second connecting seat 24. The inner side wall of the third outer rod 25 is arc-shaped. A third sliding groove 26 is provided on the outer side wall of the third outer rod 25. A fourth spring 31 is fixedly connected to the inner wall of the third sliding groove 26. The outer end of the fourth spring 31 is fixedly connected with a third inner rod 27. Fixing plates 28 are rotatably connected to the upper and lower side walls of the third inner rod 27. A buffer plate 29 is fixedly connected to the outer side wall of the fixing plate 28. The material of the buffer plate 29 is rubber.

[0029] During use, although the deceleration structure of the existing European electric hoist of a single-girder crane slows down the impact of the electric hoist on the crane beam, only a single spring is used for deceleration, the structure is relatively simple and the practicability is not strong. The electric hoist will still cause the goods to rebound and shake due to the impact on the crane beam. Therefore, there is a buffer structure for a European electric hoist. When the electric hoist transports the goods to both sides of the crane, the buffer plate 29 first comes into contact with both sides of the crane. Through the setting that the material of the buffer plate 29 is rubber, the impact force generated by the collision between the electric hoist and the crane can be initially reduced. Subsequently, the buffer plate 29 moves inward, causing the third inner rod 27 to push the fourth spring 31 to contract, and then driving the first inner rod 18 and the second inner rod 23 to push the second spring 17 and the third spring 22 to contract respectively. Through the combined setting of the second spring 17, the third spring 22 and the fourth spring 31, the impact force generated by the collision between the electric hoist and the crane can be reduced again, thereby playing a role in preventing the electric hoist and the crane from being damaged due to collision and reducing the shaking of the goods driven by the electric hoist.

[0030] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims

1. A buffer structure of a European electric hoist, comprising a hoist body (1), characterized in that: The back of the gourd body (1) is fixedly connected to a walking mechanism (2), and the left and right side walls of the gourd body (1) are fixedly connected to a holder (3), the holder (3) is square, and a first holder slot (4) and a second holder slot (5) are provided on the top of the holder (3), the first holder slot (4) is located at the rear half of the holder (3), and the second holder slot (5) is located at the front half of the holder (3), and a partition (6) is provided between the first holder slot (4) and the second holder slot (5), and a partition (6) is provided between the partition (6). A through hole is provided, the first card slot (4) and the second card slot (5) are both square, the inner wall of the second card slot (5) is slidably connected to a lever (7), the top of the lever (7) is higher than the top of the card seat (3), the lever (7) is square and is located inside the second card slot (5), the bottom of the lever (7) is fixedly connected to a mating end (8), the front of the lever (7) is fixedly connected to a first spring (9), and one end of the first spring (9) away from the lever (7) is fixedly connected to the inner wall of the second card slot (5).

2. The buffer structure of a European electric hoist according to claim 1 is characterized in that: The mating end (8) is slidably connected to the inner wall of the through hole, the top of the back of the mating end (8) is in a wedge shape with a high front and a low back, the inner wall of the first card slot (4) is slidably connected to a clamping end (10), the bottom of the front of the clamping end (10) is in a wedge shape with a high front and a low right, and the angle is consistent with the top of the back of the mating end (8), the clamping end (10) is located inside the first card slot (4) and the top of the clamping end (10) is fixedly connected to a clamping rod (11).

3. The buffer structure of a European electric hoist according to claim 2 is characterized in that: The two clamping seats (3) are symmetrically distributed on the gourd body (1), the clamping rod (11) is square and is slidably connected to the inner wall of the first clamping slot (4), the left and right outer sides of the two clamping rods (11) are fixedly connected to fixed seats (12), there are two fixed seats (12) and they correspond to the clamping seats (3) one by one, the inner side wall of the fixed seat (12) is tightly attached to the outer side wall of the clamping seat (3), the bottom of the clamping seat (3) is fixedly connected to a connecting plate (30), the connecting plate (30) is located directly below the fixing seat (12), and the top of the connecting plate (30) is tightly attached to the bottom of the fixing seat (12).

4. The buffer structure of a European electric hoist according to claim 3 is characterized in that: The left and right outer side walls of the two fixing seats (12) are each provided with a first groove (13) and a second groove (14); the first groove (13) is located above the second groove (14); the first groove (13) is consistent in size and shape with the second groove (14); a first outer rod (15) is fixedly connected to the inner wall of the rear side of the first groove (13); the first outer rod (15) is circular; a first slide groove (16) is provided on the front side of the first outer rod (15); a first inner rod (18) is slidably connected to the inner wall of the first slide groove (16); a second spring (17) is fixedly connected to the back side of the first inner rod (18); an end of the second spring (17) away from the first inner rod (18) is fixedly connected to the inner wall of the first slide groove (16).

5. The buffer structure of a European electric hoist according to claim 4 is characterized in that: A second outer rod (20) is fixedly connected to the inner wall of the front side of the second groove (14); the size and shape of the second outer rod (20) are consistent with those of the first outer rod (15); a second slide groove (21) is provided on the back side of the second outer rod (20); a third spring (22) is fixedly connected to the inner wall of the second slide groove (21); a second inner rod (23) is fixedly connected to the back side of the third spring (22); the second inner rod (23) is slidably connected to the inner wall of the second slide groove (21); a second connecting seat (24) is fixedly connected to the back side of the second inner rod (23); a first connecting seat (19) is fixedly connected to the front side of the first inner rod (18); the first connecting seat (19) and the second connecting seat (24) are both in a concave shape.

6. The buffer structure of a European electric hoist according to claim 5, characterized in that: The inner walls of the first connecting seat (19) and the second connecting seat (24) are both rotatably connected to a third outer rod (25); the inner side wall of the third outer rod (25) is in an arc shape; the outer side wall of the third outer rod (25) is provided with a third sliding groove (26); the inner wall of the third sliding groove (26) is fixedly connected to a fourth spring (31); the outer end of the fourth spring (31) is fixedly connected to a third inner rod (27); the upper and lower side walls of the third inner rod (27) are both rotatably connected to a fixing plate (28); the outer side wall of the fixing plate (28) is fixedly connected to a buffer plate (29); the material of the buffer plate (29) is rubber.

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