Electric hoist lifting protection device
Through the design of reciprocating screws and guide sleeve components, combined with the use of cleaning brushes, the problem of messy winding of steel wire ropes in the electric hoist is solved, and the uniform collection and debris cleaning of the steel wire ropes are achieved, which improves the safety and stability of the electric hoist.
Patent Information
- Application Number
- CN202422618405.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-10-29
AI Technical Summary
During the use of existing electric hoists, the wire rope is prone to be messy and entangled, resulting in short circuit of the motor and the wire rope breakage, and insufficient safety.
The reciprocating screw, screw sleeve and guide sleeve assembly are used to achieve uniform retraction and release of the wire rope through the limiting rod and the motor, and are equipped with a cleaning brush to clean up debris to prevent the wire rope from being knotted and bent.
It effectively avoids knotting and entanglement of wire ropes, improves the safety of the electric hoist, prevents motor short circuits and wire rope breaks, and ensures stable operation of the equipment.
Smart Images
Figure CN223188841U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric hoists, in particular to a lifting protection device for an electric hoist. Background Art
[0002] Electric hoist is a light and small lifting equipment, mainly used in industrial and mining enterprises, warehouses and docks to lift heavy objects. Electric hoist has the characteristics of small size, light weight, simple operation and easy use.
[0003] The electric hoist mainly drives the drum to rotate by the electric motor to retract and release the wire rope wound on the drum, and drives the hook to rise and fall, thereby realizing the lifting and lowering operation of heavy objects. In the existing technology, most electric hoists lack components to intervene in the retraction and release of the wire rope during use, resulting in the wire rope being easily messy when being retracted and released, and in severe cases, it will be entangled. When the wire rope is entangled, the electric hoist continues to work, which may cause a motor short circuit and a wire rope breakage accident, resulting in insufficient safety. Therefore, it is necessary to design an electric hoist lifting protection device to address the above problems. Utility Model Content
[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an electric hoist lifting protection device.
[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0006] The electric hoist lifting protection device includes an electric hoist body, two connecting sleeves are fixedly installed on the outer wall of the electric hoist body, connecting plates are slidably installed on the inner walls of the two connecting sleeves, and fixing pins are slidably installed on the outer walls of the two connecting sleeves. The outer walls of the two connecting plates are provided with jacks that cooperate with the fixing pins on the same side, and the outer walls of the two fixing pins are fixed with shift blocks. The inner walls of the two shift blocks are connected to the outer wall of the connecting sleeve on the same side through a fixing mechanism. A reciprocating screw is rotatably installed between the two connecting plates, and the outer wall of one of the connecting plates is fixed with a jack that cooperates with the reciprocating screw. A connected motor, a limit rod is fixedly installed between the two connecting plates, a screw sleeve is threadedly installed on the outer wall of the reciprocating screw, the limit rod slides through the screw sleeve, the outer wall of the screw sleeve is fixedly connected to a guide sleeve through a first connecting mechanism, the bottom wall of the screw sleeve is fixedly connected to a connecting frame through a second connecting mechanism, and the outer walls on both sides of the connecting frame are slidably penetrated with an adjusting rod, the outer walls of the two adjusting rods are fixedly installed with limit plates, the inner walls of the two limit plates are connected to the outer wall of the connecting frame through an adjusting mechanism, and cleaning brushes are fixedly installed on the ends of the two adjusting rods.
[0007] Preferably, the fixing mechanism includes a fixing spring installed on the outer wall of the fixing pin, and two ends of the fixing spring are elastically connected to the outer wall of the connecting sleeve and the inner wall of the shifting block respectively.
[0008] Preferably, the first connecting mechanism includes a first connecting rod fixedly mounted on the outer wall of the screw sleeve, and an end portion of the first connecting rod is fixedly connected to the outer wall of the guide sleeve.
[0009] Preferably, the second connecting mechanism includes a second connecting rod fixedly mounted on the bottom wall of the screw sleeve, and an end portion of the second connecting rod is fixedly connected to the outer wall of the connecting frame.
[0010] Preferably, the adjustment mechanism includes an adjustment spring installed on the outer wall of the adjustment rod, and two ends of the adjustment spring are elastically connected to the outer wall of the connecting frame and the inner wall of the limiting plate respectively.
[0011] Preferably, a stabilizing rod is fixedly mounted on the outer walls of the two cleaning brushes, and each of the stabilizing rods slides through the connecting frame.
[0012] Beneficial effects of the utility model:
[0013] 1. By setting up components such as a reciprocating screw, a screw sleeve and a guide sleeve, the reciprocating screw can drive the screw sleeve to move by cooperating with the limit rod when it rotates, thereby allowing the screw sleeve to drive the guide sleeve to move through the first connecting rod, and the guide sleeve then drives the wire rope to move left and right, so that the wire rope can be intervened during the lifting and lowering process of the electric hoist body, so that the wire rope can be evenly retracted and released, avoiding the problem of the wire rope being knotted and entangled.
[0014] 2. By setting up components such as cleaning brushes, adjusting rods and adjusting springs, the two cleaning brushes can clean up the debris on the outer wall of the wire rope to prevent the debris from affecting the retraction and extension of the wire rope. When the wire rope is tilted, the adjusting rod can drive the cleaning brush to move under the elastic action of the adjusting spring, thereby preventing the cleaning brush from squeezing the wire rope and preventing the wire rope from bending. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a structural diagram of the electric hoist lifting protection device proposed in the utility model;
[0016] Figure 2 This is a schematic diagram of the bottom structure of the electric hoist lifting protection device proposed in the utility model;
[0017] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure;
[0018] Figure 4 for Figure 1 A schematic diagram of the structure enlargement at point A;
[0019] Figure 5 for Figure 2 A magnified schematic diagram of the structure at point B in FIG.
[0020] Figure 6 for Figure 3 Schematic diagram of the enlarged structure at point C in FIG.
[0021] In the figure: 1 electric hoist body, 2 connecting sleeve, 3 connecting plate, 4 fixing pin, 5 shift block, 6 fixing spring, 7 reciprocating screw, 8 motor, 9 limit rod, 10 screw sleeve, 11 first connecting rod, 12 guide sleeve, 13 second connecting rod, 14 connecting frame, 15 adjusting rod, 16 limiting plate, 17 adjusting spring, 18 cleaning brush, 19 stabilizing rod. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0023] Reference Figure 1-6 The electric hoist lifting protection device includes an electric hoist body 1, two connecting sleeves 2 are fixedly installed on the outer wall of the electric hoist body 1, and connecting plates 3 are slidably installed on the inner walls of the two connecting sleeves 2. Fixed pins 4 are slidably installed on the outer walls of the two connecting sleeves 2. The outer walls of the two connecting plates 3 are provided with jacks that cooperate with the fixed pins 4 on the same side. The outer walls of the two fixing pins 4 are fixedly installed with shift blocks 5. The inner walls of the two shift blocks 5 are connected to the outer wall of the connecting sleeve 2 on the same side through a fixing mechanism. The fixing mechanism includes a fixing spring 6 installed on the outer wall of the fixing pin 4, and the two ends of the fixing spring 6 are elastically connected to the outer wall of the connecting sleeve 2 and the inner wall of the shift block 5 respectively.
[0024] A reciprocating screw 7 is rotatably installed between the two connecting plates 3, and a motor 8 connected to the reciprocating screw 7 is fixedly installed on the outer wall of one of the connecting plates 3. A limiting rod 9 is fixedly installed between the two connecting plates 3, and a screw sleeve 10 is threadedly rotatably installed on the outer wall of the reciprocating screw 7. The limiting rod 9 slides through the screw sleeve 10. The limiting rod 9 can limit the screw sleeve 10 so that the screw sleeve 10 can only move axially along the outer wall of the reciprocating screw 7. The outer wall of the screw sleeve 10 is fixedly connected to a guide sleeve 12 through a first connecting mechanism. The first connecting mechanism includes a first connecting rod 11 fixedly installed on the outer wall of the screw sleeve 10, and the end of the first connecting rod 11 is fixedly connected to the outer wall of the guide sleeve 12. The bottom wall of the screw sleeve 10 is fixedly connected to a connecting frame 14 through a second connecting mechanism. The second connecting mechanism includes a second connecting rod 13 fixedly installed on the bottom wall of the screw sleeve 10, and the end of the second connecting rod 13 is fixedly connected to the outer wall of the connecting frame 14.
[0025] Adjusting rods 15 are slidably installed on the outer walls of both sides of the connecting frame 14, and limiting plates 16 are fixedly installed on the outer walls of the two adjusting rods 15. The inner walls of the two limiting plates 16 are connected to the outer wall of the connecting frame 14 through an adjusting mechanism. The adjusting mechanism includes an adjusting spring 17 installed on the outer wall of the adjusting rod 15. The two ends of the adjusting spring 17 are elastically connected to the outer wall of the connecting frame 14 and the inner wall of the limiting plate 16 respectively. Cleaning brushes 18 are fixedly installed on the ends of the two adjusting rods 15. Stabilizing rods 19 are fixedly installed on the outer walls of the two cleaning brushes 18. Each stabilizing rod 19 slides through the connecting frame 14.
[0026] When the present invention is in use, the two connecting plates 3 can be respectively inserted into the two connecting sleeves 2, and then the fixing spring 6 can drive the fixing pin 4 to move into the insertion hole through its elastic cooperation, thereby realizing the installation and fixation of the connecting plate 3 inside the connecting sleeve 2, thereby realizing the fixed installation of components such as the guide sleeve 12 and the cleaning brush 18. Before the electric hoist body 1 is used, the wire rope can be passed through the guide sleeve 12 and placed between the two cleaning brushes 18. During the lifting and lowering process of the electric hoist body 1, the motor 8 can drive the reciprocating screw 7 to rotate. When the reciprocating screw 7 rotates, it can drive the screw sleeve 10 to move by cooperating with the limit rod 9. As a result, the screw sleeve 10 can drive the guide sleeve 12 to move through the first connecting rod 11, and the guide sleeve 12 then drives the wire rope to move left and right, so that the wire rope can be intervened in the process of lifting and lowering the electric hoist body 1, so that the wire rope can be evenly retracted and released, avoiding the problem of the wire rope being knotted and entangled.
[0027] At the same time, when the wire rope is retracted or released, the two cleaning brushes 18 can clean the debris on the outer wall of the wire rope to prevent the debris from affecting the retraction and release of the wire rope. When the wire rope is tilted, under the elastic action of the adjusting spring 17, the adjusting rod 15 can drive the cleaning brush 18 to move, thereby avoiding the cleaning brush 18 from squeezing the wire rope and preventing the wire rope from bending. In the process of moving the cleaning brush 18, it can drive the two stabilizing rods 19 to slide inside the connecting frame 14, thereby increasing the stability of the cleaning brush 18 during use.
[0028] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. An electric hoist lifting protection device, comprising an electric hoist body (1), characterized in that: The outer wall of the electric hoist body (1) is fixedly installed with two connecting sleeves (2), the inner walls of the two connecting sleeves (2) are slidably installed with connecting plates (3), the outer walls of the two connecting sleeves (2) are slidably penetrated with fixing pins (4), the outer walls of the two connecting plates (3) are provided with jacks that match the fixing pins (4) on the same side, the outer walls of the two fixing pins (4) are fixedly installed with shifting blocks (5), the inner walls of the two shifting blocks (5) are connected to the outer wall of the connecting sleeve (2) on the same side through a fixing mechanism, a reciprocating screw (7) is rotatably installed between the two connecting plates (3), one of the connecting plates (3) is fixedly installed with a motor (8) connected to the reciprocating screw (7), and the two connecting plates (3) are fixedly installed with a motor (8) connected to the reciprocating screw (7). A limiting rod (9) is fixedly installed between the two ends of the reciprocating screw (7), a screw sleeve (10) is threadedly installed on the outer wall of the reciprocating screw (7), the limiting rod (9) slides through the screw sleeve (10), the outer wall of the screw sleeve (10) is fixedly connected to the guide sleeve (12) through a first connecting mechanism, the bottom wall of the screw sleeve (10) is fixedly connected to the connecting frame (14) through a second connecting mechanism, and the outer walls of both sides of the connecting frame (14) are slidably penetrated by adjusting rods (15), the outer walls of the two adjusting rods (15) are fixedly installed with limiting plates (16), the inner walls of the two limiting plates (16) are connected to the outer wall of the connecting frame (14) through an adjusting mechanism, and the ends of the two adjusting rods (15) are fixedly installed with cleaning brushes (18).
2. The electric hoist lifting protection device according to claim 1, characterized in that: The fixing mechanism comprises a fixing spring (6) mounted on the outer wall of the fixing pin (4), and two ends of the fixing spring (6) are elastically connected to the outer wall of the connecting sleeve (2) and the inner wall of the shifting block (5), respectively.
3. The electric hoist lifting protection device according to claim 2, characterized in that: The first connecting mechanism comprises a first connecting rod (11) fixedly mounted on the outer wall of the screw sleeve (10), and an end of the first connecting rod (11) is fixedly connected to the outer wall of the guide sleeve (12).
4. The electric hoist lifting protection device according to claim 3, characterized in that: The second connecting mechanism comprises a second connecting rod (13) fixedly mounted on the bottom wall of the screw sleeve (10), and an end of the second connecting rod (13) is fixedly connected to the outer wall of the connecting frame (14).
5. The electric hoist lifting protection device according to claim 4, characterized in that: The adjustment mechanism comprises an adjustment spring (17) mounted on the outer wall of the adjustment rod (15), and two ends of the adjustment spring (17) are elastically connected to the outer wall of the connection frame (14) and the inner wall of the limit plate (16), respectively.
6. The electric hoist lifting protection device according to claim 5, characterized in that: Stabilizing rods (19) are fixedly mounted on the outer walls of the two cleaning brushes (18), and each of the stabilizing rods (19) slides through the connecting frame (14).