High-stability low-cost electric single-beam crane

Abstract

The high-stability and low-cost electric single-beam crane comprises a lifting box, a lifting block is slidably connected into the lifting box, two sets of locking holes are formed in the side, facing the lifting box, of the lifting block, two sets of lifting grooves are formed in the two sides of the lifting box, lifting rods are slidably connected into the lifting grooves, and locking holes are formed in the locking holes. A groove is formed in one side of the upper portion of the lifting rod, two first locking rods are slidably connected to the inner side of the upper portion of the lifting box, one end of each first locking rod is fixedly connected with a protruding head matched with the corresponding groove, an adjusting groove is formed in the inner side of the upper portion of the lifting box, and first fixing pieces are fixedly connected to the outer sides of the first locking rods. And the first fixing piece is slidably connected into the adjusting groove, a first spring is fixedly connected between the first fixing piece and the adjusting groove, and the first locking rod is sleeved with the first spring, so that the single-beam crane can be conveniently put down and fixed in position, and the single-beam crane can be conveniently maintained.

Description

Technical Field

[0001] This utility model relates to the field of single-girder crane technology, specifically a high-stability, low-cost electric single-girder crane. Background Technology

[0002] The main structure of a single-girder crane includes the bridge frame, the hoisting trolley (usually a manual hoist, electric hoist, etc.), the traveling mechanism, and the electrical control system. The main beams of the bridge frame mostly use I-beams or a combination of steel profiles and steel plates to ensure sufficient strength and rigidity.

[0003] Traditional electric single-girder cranes have beams that are welded together as a whole, resulting in a large weight. Due to the high installation height of the main beam, it is not conducive to the disassembly and routine maintenance of the equipment. Utility Model Content

[0004] The purpose of this invention is to provide a highly stable and low-cost electric single-girder crane to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-stability, low-cost electric single-girder crane, comprising a lifting box, a lifting block slidably connected inside the lifting box, two sets of locking holes on the side of the lifting block facing the lifting box, two sets of lifting grooves inside both sides of the lifting box, a lifting rod slidably connected inside the lifting groove, a groove on one side of the upper part of the lifting rod, two sets of first locking rods slidably connected to the inner upper part of the lifting box, a protrusion that matches the groove fixedly connected to one end of the first locking rod, an adjustment groove on the inner upper part of the lifting box, a first fixing plate fixedly connected to the outer side of the first locking rod, the first fixing plate slidably connected inside the adjustment groove, a first spring fixedly connected between the first fixing plate and the adjustment groove, and the first spring sleeved on the outer side of the first locking rod.

[0006] Preferably, a first threaded rod is rotatably connected inside the lifting box on one side, the first threaded rod is threadedly connected inside the lifting block, and a handle is fixedly connected to the lower part of the first threaded rod through the lifting box. A sliding rod is fixedly connected inside the lifting box on the other side, and the sliding rod is slidably connected inside the lifting block on the other side.

[0007] Preferably, a connecting block is fixedly connected to the lower part of the lifting rods on both sides, and a second locking rod is slidably connected inside the connecting block. A curved plate is fixedly connected to the lower part of the lifting box, and two sets of position holes are opened inside the curved plate. A second fixing plate is fixedly connected to one end of the second locking rod, and a second spring is fixedly connected between the second fixing plate and the connecting block. The second spring is sleeved on the outside of the second locking rod.

[0008] Preferably, four sets of mounting plates are slidably connected to the outside of the lifting box.

[0009] Preferably, the lifting blocks on both sides are fixedly connected to a first mounting frame facing each other on one side. A movable plate is slidably connected inside the first mounting frame. Two sets of extension plates are fixedly connected to one end of the movable plate, and a second mounting frame is fixedly connected to the other end of the extension plate. A motor is fixedly connected to the upper part of one side of the second mounting frame. The power end of the motor penetrates the second mounting frame and is fixedly connected to a third threaded rod. The other end of the third threaded rod is rotatably connected to the inner wall of the second mounting frame. An electric hoist is threadedly connected to the outer side of the third threaded rod. A movable rod is slidably connected inside the electric hoist. Both ends of the movable rod are fixedly connected to the inner wall of the second mounting frame. A hook is fixedly connected to the lower part of the electric hoist.

[0010] Preferably, an upper bevel gear is rotatably connected to the upper part of the first mounting bracket on one side, a rotating cap is fixedly connected to the upper part of the upper bevel gear, a lower bevel gear is meshed with the lower part of the upper bevel gear, a second threaded rod is fixedly connected to the tail of the lower bevel gear, the other end of the second threaded rod is rotatably connected to the inner wall of the first mounting bracket, and the second threaded rod is threadedly connected to the inside of the movable plate.

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

[0012] 1. This utility model uses a rotating handle to drive the first threaded rod to rotate, thereby facilitating the lifting block to move up and down within the lifting box. When the lifting block moves to the upper part, the connecting block pushes the lifting rod upward, causing the protrusion to disengage from the groove, facilitating the extension of the first locking rod. The first locking rod is inserted into the locking hole to lock the installed lifting block. When the lifting rod moves downward, the groove faces the protrusion, and the first spring pushes the first fixing plate to cause the electric protrusion of the first locking rod to enter the groove, thereby unlocking the lifting block. This facilitates the lowering and positioning of the single-girder crane and makes maintenance of the single-girder crane easier.

[0013] 2. This utility model also uses a rotating cap to drive the upper bevel gear to rotate, and the rotation of the second threaded rod controls the movement of the moving plate, adjusting the distance between the two lifting boxes. The two lifting boxes are installed on the wall by the mounting plate, which can adjust the length of the equipment according to the distance of the wall, making the equipment suitable for different environments. Attached Figure Description

[0014] Figure 1 This is a first-view three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a cross-sectional view of the lifting box structure from a second perspective of this utility model;

[0016] Figure 3 This is a schematic diagram of the third-view curved plate structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the first mounting bracket structure from the fourth perspective of this utility model.

[0018] In the diagram: 1. Lifting box; 2. Lifting block; 3. Locking hole; 4. Lifting groove; 5. Lifting rod; 6. Groove; 7. First locking rod; 8. Protrusion; 9. Adjustment groove; 10. First fixing plate; 11. First spring; 12. Connecting block; 13. Bent plate; 14. Position hole; 15. Second locking rod; 16. Second spring; 17. Second fixing plate; 18. First threaded rod; 19. Handle; 20. Sliding rod; 21. Mounting plate; 22. First mounting bracket; 23. Upper bevel gear; 24. Rotating cap; 25. Lower bevel gear; 26. Second threaded rod; 27. Moving plate; 28. Extension plate; 29. ​​Second mounting bracket; 30. Third threaded rod; 31. Moving rod; 32. Motor; 33. Electric hoist; 34. Hook. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This utility model provides a technical solution: a high-stability, low-cost electric single-girder crane, including a lifting box 1. A lifting block 2 is slidably installed inside the lifting box 1. By moving the lifting block 2 downwards along the inside of the lifting box 1, the single-girder crane is lowered, facilitating crane maintenance. Two sets of locking holes 3 are provided on the side of the lifting block 2 facing the lifting box 1. Two sets of lifting grooves 4 are provided inside both sides of the lifting box 1. A lifting rod 5 is slidably installed inside the lifting groove 4. A groove 6 is provided on one side of the upper part of the lifting rod 5. Two sets of first locking rods 7 are slidably installed on the upper inner side of the lifting box 1. One end of each first locking rod 7 is fixedly welded with a protrusion 8 that matches the groove 6. By pushing upwards... The lifting rod 5 is moved so that the protrusion 8 disengages from the groove 6, making it easier for the first locking rod 7 to extend. The first locking rod 7 is inserted into the locking hole 3 to lock the installed lifting block 2. An adjustment groove 9 is provided on the inner side of the upper part of the lifting box 1. A first fixing plate 10 is fixedly welded to the outside of the first locking rod 7. The first fixing plate 10 is slidably installed inside the adjustment groove 9. A first spring 11 is fixedly welded between the first fixing plate 10 and the adjustment groove 9. The first spring 11 is sleeved on the outside of the first locking rod 7. The first spring 11 pushes the first fixing plate 10 to make the electric protrusion 8 of the first locking rod 7 enter the groove 6, preventing the first locking rod 7 from blocking the upward movement of the lifting block 2.

[0021] A first threaded rod 18 is rotatably installed inside one side of the lifting box 1. The first threaded rod 18 is threaded into the lifting block 2. A handle 19 is fixedly welded to the lower part of the first threaded rod 18 through the lifting box 1. By rotating the handle 19, the first threaded rod 18 is rotated, thus facilitating the up-and-down movement of the lifting block 2 within the lifting box 1. A sliding rod 20 is fixedly welded inside the other side of the lifting box 1. The sliding rod 20 is slidably installed inside the other side of the lifting block 2 to ensure the balance of both ends of the two lifting blocks 2. Connecting blocks 12 are fixedly welded to the lower parts of the two lifting rods 5, allowing the two lifting rods 5 to move up and down simultaneously and preventing the lifting rods 5 from rotating. A second locking rod 15 is slidably installed inside the connecting block 12. The lower part of the lifting box 1 is fixedly welded with... A curved plate 13 is connected, and two sets of position holes 14 are opened inside the curved plate 13. A second fixing plate 17 is fixedly welded to one end of the second locking rod 15. A second spring 16 is fixedly welded between the second fixing plate 17 and the connecting block 12. The second spring 16 is sleeved on the outside of the second locking rod 15. The second spring 16 pulls the second fixing plate 17, so that the second locking rod 15 is inserted into different position holes 14 to lock the lifting position of the lifting rod 5. Four sets of mounting plates 21 are slidably installed on the outside of the lifting box 1 for fixing the lifting box 1 to the wall. A first mounting frame 22 is fixedly welded to one side of the two lifting blocks 2 facing each other. A movable plate 27 is slidably installed inside the first mounting frame 22. Two sets of extension plates 28 are fixedly welded to one end, and a second mounting bracket 29 is fixedly welded to the other end of the extension plates 28. A motor 32 is installed on the upper flange of one side of the second mounting bracket 29. The power end of the motor 32 penetrates the second mounting bracket 29 and is fixedly welded to a third threaded rod 30. The other end of the third threaded rod 30 is rotatably connected to the inner wall of the second mounting bracket 29. An electric hoist 33 is threadedly installed on the outer side of the third threaded rod 30. A moving rod 31 is slidably installed inside the electric hoist 33. Both ends of the moving rod 31 are fixedly welded to the inner wall of the second mounting bracket 29. A hook 34 is threadedly installed on the lower part of the electric hoist 33. The motor 32 drives the third threaded rod 30, causing the electric hoist 33 to move along the moving rod 31, thereby adjusting the position of the hook 34. In section, the electric hoist 33 drives the hook 34 to move up and down, realizing the operation of the crane; an upper bevel gear 23 is rotatably mounted on the upper part of the first mounting bracket 22 on one side, a rotating cap 24 is fixedly welded to the upper part of the upper bevel gear 23, a lower bevel gear 25 is meshed and connected to the lower part of the upper bevel gear 23, a second threaded rod 26 is fixedly welded to the tail of the lower bevel gear 25, the other end of the second threaded rod 26 is rotatably connected to the inner wall of the first mounting bracket 22, and the second threaded rod 26 is threadedly installed inside the moving plate 27. By rotating the rotating cap 24, the upper bevel gear 23 drives the lower bevel gear 25 to rotate, and the rotation of the second threaded rod 26 controls the movement of the moving plate 27, thereby adjusting the length of the crane's main beam according to the installation distance of the lifting boxes 1 on both sides.

[0022] Working principle: When in use, rotating the rotating cap 24 causes the upper bevel gear 23 to drive the lower bevel gear 25 to rotate, and rotating the second threaded rod 26 controls the movement of the moving plate 27 to adjust the distance between the two lifting boxes 1. The two lifting boxes 1 are installed on the wall by the mounting plate 21. Rotating the handle 19 drives the first threaded rod 18 to rotate, thus facilitating the lifting block 2 to move up and down along the lifting box 1. When the lifting block 2 moves to the upper part, the connecting block 12 pushes the lifting rod 5 upward, causing the protrusion 8 to disengage from the groove 6, facilitating the extension of the first locking rod 7. The first locking rod 7 is inserted into the locking hole 3 to lock the installed lifting block 2. The lifting rod 5 moves downward, so that the groove 6 is aligned with the protrusion 8. The first spring 11 pushes the first fixing plate 10 to make the electric protrusion 8 of the first locking rod 7 enter the groove 6, thereby unlocking the lifting block 2. The second spring 16 pulls the second fixing plate 17 to make the second locking rod 15 insert into different position holes 14 to lock the lifting position of the lifting rod 5.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-stability, low-cost electric single-girder crane, comprising a lifting box (1), characterized in that: The lifting box (1) is slidably connected to a lifting block (2). The lifting block (2) has two sets of locking holes (3) on the side facing the lifting box (1). The lifting box (1) has two sets of lifting grooves (4) on both sides. The lifting grooves (4) are slidably connected to a lifting rod (5). The lifting rod (5) has a groove (6) on one side of its upper part. The lifting box (1) has two sets of first locking rods (7) slidably connected to the upper inner side. One end of the first locking rod (7) is fixedly connected to a protrusion (8) that matches the groove (6). The lifting box (1) has an adjustment groove (9) on its upper inner side. The first locking rod (7) is fixedly connected to a first fixing piece (10) on its outer side. The first fixing piece (10) is slidably connected to the inside of the adjustment groove (9). The first fixing piece (10) is fixedly connected to the adjustment groove (9). The first spring (11) is fixedly connected between the first fixing piece (10) and the adjustment groove (9). The first spring (11) is sleeved on the outer side of the first locking rod (7).

2. The high-stability, low-cost electric single-girder crane according to claim 1, characterized in that: A first threaded rod (18) is rotatably connected inside the lifting box (1) on one side. The first threaded rod (18) is threadedly connected inside the lifting block (2). The lower part of the first threaded rod (18) penetrates the lifting box (1) and is fixedly connected to a handle (19). A sliding rod (20) is fixedly connected inside the lifting box (1) on the other side. The sliding rod (20) is slidably connected inside the lifting block (2) on the other side.

3. The high-stability, low-cost electric single-girder crane according to claim 1, characterized in that: A connecting block (12) is fixedly connected to the lower part of the lifting rod (5) on both sides. A second locking rod (15) is slidably connected inside the connecting block (12). A curved plate (13) is fixedly connected to the lower part of the lifting box (1). Two sets of position holes (14) are opened inside the curved plate (13). A second fixing piece (17) is fixedly connected to one end of the second locking rod (15). A second spring (16) is fixedly connected between the second fixing piece (17) and the connecting block (12). The second spring (16) is sleeved on the outside of the second locking rod (15).

4. The high-stability, low-cost electric single-girder crane according to claim 1, characterized in that: The lifting box (1) has four sets of mounting plates (21) slidably connected to its outer side.

5. A high-stability, low-cost electric single-girder crane according to claim 1, characterized in that: The lifting blocks (2) on both sides are fixedly connected to a first mounting frame (22) facing each other. A movable plate (27) is slidably connected inside the first mounting frame (22). Two sets of extension plates (28) are fixedly connected to one end of the movable plate (27). A second mounting frame (29) is fixedly connected to the other end of the extension plate (28). A motor (32) is fixedly connected to the upper part of one side of the second mounting frame (29). A third threaded rod (30) is fixedly connected to the power end of the motor (32) through the second mounting frame (29). The other end of the third threaded rod (30) is rotatably connected to the inner wall of the second mounting frame (29). An electric hoist (33) is threadedly connected to the outer side of the third threaded rod (30). A movable rod (31) is slidably connected inside the electric hoist (33). Both ends of the movable rod (31) are fixedly connected to the inner wall of the second mounting frame (29). A hook (34) is fixedly connected to the lower part of the electric hoist (33).

6. A high-stability, low-cost electric single-girder crane according to claim 5, characterized in that: An upper bevel gear (23) is rotatably connected to the upper part of the first mounting bracket (22) on one side. A rotating cap (24) is fixedly connected to the upper part of the upper bevel gear (23). A lower bevel gear (25) is meshed with the lower part of the upper bevel gear (23). A second threaded rod (26) is fixedly connected to the tail of the lower bevel gear (25). The other end of the second threaded rod (26) is rotatably connected to the inner wall of the first mounting bracket (22). The second threaded rod (26) is threadedly connected to the inside of the movable plate (27).

Images