Hoisting machine with self-locking structure

Abstract

The hoist with the self-locking structure comprises an equipment frame, a motor, a speed reducer and a wind-up roller, the self-locking mechanism is arranged on the equipment frame and comprises a guide rod, a sliding block, a locking roller and a pressing roller, a sleeve is arranged on the side face of the sliding block, the sliding block is arranged on the guide rod in a sleeved mode through the sleeve and connected with the guide rod in a sliding mode, and the locking roller is arranged on the locking roller. The locking roller is rotatably installed on the sliding rail, the pressing roller is movably installed on the sliding block, the locking roller is provided with a throwing block which is rotatably connected, the sliding block is provided with a locking ring matched with the throwing block, the throwing block is an arc-shaped steel plate, the throwing block is installed on the side face of the locking roller and rotatably connected with the locking roller, and a clamping groove corresponding to the throwing block in shape is formed in the locking ring. The locking ring is located at the outer end of the flail block. The self-locking gate has the advantage of being high in safety performance, and the problem that in the prior art, when the gate is out of control and falls, the gate cannot be self-locked, and safety accidents are likely to happen is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gate hoists, in particular to a gate hoist with a self-locking structure. Background Art

[0002] A winch hoist is a type of equipment specifically designed to operate rapid gates. Rapid gates are used to protect generators or pipes. Normally, they are suspended above the opening. In the event of a generator, water pump, or pipe failure, they can quickly shut off the water flow and prevent the incident from escalating.

[0003] In some emergency situations, such as power system failure, overload operation or human error, the gate may fall out of control, causing serious damage to the gate structure itself and the surrounding environment, and even endangering personnel safety. Therefore, a gate hoist with a self-locking structure is needed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a gate hoist with a self-locking structure, which has the advantage of high safety performance and solves the problem in the prior art that the gate cannot self-lock when the gate falls out of control, which easily causes safety accidents.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hoist with a self-locking structure, comprising an equipment frame, a motor, a reducer and a winding roller, wherein the equipment frame is provided with a self-locking mechanism;

[0006] The self-locking mechanism includes a guide rod, a slider, a locking roller and a pressure roller. A sleeve is provided on the side of the slider. The slider is sleeved on the guide rod and is slidably connected to it. The locking roller is rotatably installed on the slide rail, and the pressure roller is movably installed on the slider. The locking roller is provided with a rotatably connected swing block, and the slider is provided with a locking ring that cooperates with the swing block.

[0007] As a preferred opening and closing machine with a self-locking structure of the utility model, the swing block is an arc-shaped steel plate, the swing block is installed on the side of the locking roller and is rotatably connected to it, a card groove corresponding to the shape of the swing block is provided inside the locking ring, and the locking ring is located at the outer end of the swing block.

[0008] As a preferred embodiment of the gate opening and closing machine with a self-locking structure of the present invention, a tension spring is provided between the swing block and the locking roller, and the swing block and the locking roller are elastically rotatably connected via the tension spring.

[0009] As a preferred embodiment of the gate opening and closing machine with a self-locking structure of the present invention, a spiral cable groove is provided on the locking roller.

[0010] As a preferred embodiment of the gate opening and closing machine with a self-locking structure of the present invention, a slidingly connected shaft frame is provided in the slider, and the pressure roller is rotatably connected to the shaft frame via a bearing.

[0011] As a preferred embodiment of the hoist with a self-locking structure of the present invention, a screw rod for rotation connection is provided on the shaft frame, a screw hole is provided on the slider, and the screw rod passes through the screw hole and is threadedly connected thereto.

[0012] As a preferred embodiment of the hoist with a self-locking structure of the present invention, a rubber sleeve is provided on the surface of the pressure roller.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. The utility model sets a self-locking mechanism on the equipment frame. When the gate falls rapidly due to an accident, the cable drives the locking roller to rotate at high speed, triggering the throwing block mechanism to quickly lock the locking roller, effectively preventing the gate from falling out of control, and greatly reducing the risk of impact damage caused by rapid falling. The tension spring design between the throwing block and the locking roller ensures that when the hoist is running normally at a low speed, the throwing block can maintain contact with the locking roller without accidentally triggering the self-locking mechanism, which not only ensures the smoothness of daily operation but also maintains the safety of emergency braking, thus achieving a balance between operational flexibility and safety.

[0015] 2. The utility model adopts the compression design of the spiral cable groove and the sliding connection on the locking roller, so that steel cables of different diameters can be adapted. The mechanism of adjusting the shaft frame position by the screw rod not only allows the user to easily adjust the position of the pressure shaft according to actual needs to match steel cables of different specifications, but also improves the adaptability of the equipment to different application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the self-locking mechanism structure of the utility model;

[0018] Figure 3 This is a rear view of the self-locking mechanism of the utility model;

[0019] Figure 4 For the utility model Figure 3 Enlarged view of point A in the middle;

[0020] Figure 5 This is a top sectional view of the self-locking mechanism of the present utility model.

[0021] In the figure: 1. Equipment frame; 2. Motor; 3. Reducer; 4. Winding roller; 5. Self-locking mechanism; 501. Guide rod; 502. Slider; 5021. Sleeve; 503. Locking roller; 5031. Cable groove; 504. Pressure roller; 5041. Rubber sleeve; 505. Shaft frame; 5051. Throwing block; 5052. Tension spring; 5053. Screw; 506. Locking ring; 5061. Slot. DETAILED DESCRIPTION

[0022] See also Figure 1-Figure 5 A gate hoist with a self-locking structure includes an equipment frame 1, a motor 2, a reducer 3 and a winding roller 4, and a self-locking mechanism 5 is provided on the equipment frame 1;

[0023] The self-locking mechanism 5 includes a guide rod 501, a slider 502, a locking roller 503 and a pressure roller 504. A sleeve 5021 is provided on the side of the slider 502. The slider 502 is sleeved on the guide rod 501 through the sleeve 5021 and is slidably connected to it. The locking roller 503 is rotatably installed on the slide rail, and the pressure roller 504 is movably installed on the slider 502. The locking roller 503 is provided with a rotatably connected swing block 5051, and the slider 502 is provided with a locking ring 506 that cooperates with the swing block 5051.

[0024] Furthermore, the swing block 5051 is an arc-shaped steel plate, which is installed on the side of the locking roller 503 and is rotatably connected to it. A slot 5061 corresponding to the shape of the swing block 5051 is provided inside the locking ring 506, and the locking ring 506 is located at the outer end of the swing block 5051.

[0025] When the locking roller 503 rotates rapidly, the swing block 5051 opens under the action of centrifugal force and is stuck into the inner wall of the locking ring 506, thereby locking and fixing the locking roller 503.

[0026] Furthermore, a tension spring 5052 is provided between the swing block 5051 and the locking roller 503 , and the swing block 5051 and the locking roller 503 are elastically rotatably connected via the tension spring 5052 .

[0027] The swing block 5051 is kept in contact with the locking roller 503 under the action of the tension spring 5052, so that the locking roller 503 can rotate at a low speed without affecting the control of the gate by the gate hoist under normal conditions.

[0028] Furthermore, a spiral cable groove 5031 is provided on the locking roller 503 .

[0029] The cable is spirally wound around the cable groove 5031, so that when the gate falls naturally, the cable can drive the locking roller 503 to rotate at high speed, thereby triggering the swing block 5051 to lock the locking roller 503, preventing the gate from falling rapidly and causing excessive impact and deformation of the gate.

[0030] Furthermore, a slidingly connected shaft frame 505 is provided in the slider 502, and the pressure roller 504 is rotatably connected to the shaft frame 505 through a bearing.

[0031] The shaft frame 505 is moved closer to the winding roller 4 so that the pressure roller 504 squeezes the winding roller 4, thereby pressing the cable tightly and increasing the friction between the steel cable and the locking roller 503, thereby preventing the steel cable and the locking roller 503 from slipping.

[0032] Furthermore, a screw rod 5053 for rotational connection is provided on the shaft frame 505, and a screw hole is provided on the slider 502, and the screw rod 5053 passes through the screw hole and is threadedly connected thereto.

[0033] By rotating the screw rod 5053 to adjust the position of the shaft frame 505, the locking roller 503 can adapt to steel cables of different diameters, and the position of the pressure shaft can be adjusted conveniently, thereby improving the convenience of adjustment.

[0034] Furthermore, a rubber sleeve 5041 is provided on the surface of the pressing roller 504 .

[0035] The rubber sleeve 5041 has a certain elasticity. When the pressure roller 504 squeezes the steel cable, the steel cable will not be excessively deformed or broken, thereby further improving the stability of the equipment.

[0036] When this equipment is in use, the motor 2 drives the winding roller 4 to rotate slowly through the reducer 3, thereby retracting and releasing the steel cable to open or close the gate. During normal operation, the pressure roller 504 is adjusted by the shaft frame 505 and the screw rod 5053 to ensure that the steel cable is properly compressed to avoid sliding, and to ensure smooth opening and closing movements. If an abnormal situation occurs, such as the steel cable suddenly loses tension or the gate falls rapidly, the cable will quickly pull the locking roller 503 to rotate. At this time, the swing block 5051 opens outward under the action of centrifugal force and is stuck in the slot 5061 of the locking ring 506, quickly locking the locking roller 503, achieving emergency braking, and preventing the gate from continuing to fall.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A gate hoist with a self-locking structure, comprising a device frame (1), a motor (2), a reducer (3) and a winding roller (4), characterized in that: The equipment rack (1) is provided with a self-locking mechanism (5); The self-locking mechanism (5) includes a guide rod (501), a slider (502), a locking roller (503) and a pressure roller (504); a sleeve (5021) is provided on the side of the slider (502); the slider (502) is sleeved on the guide rod (501) through the sleeve (5021) and is slidably connected thereto; the locking roller (503) is rotatably mounted on the slide rail; the pressure roller (504) is movably mounted on the slider (502); a rotatably connected swing block (5051) is provided on the locking roller (503); and a locking ring (506) is provided on the slider (502) to cooperate with the swing block (5051).

2. The gate hoist with a self-locking structure according to claim 1, characterized in that: The swing block (5051) is an arc-shaped steel plate. The swing block (5051) is installed on the side of the locking roller (503) and is rotatably connected to it. A slot (5061) corresponding to the shape of the swing block (5051) is provided inside the locking ring (506). The locking ring (506) is located at the outer end of the swing block (5051).

3. The gate hoist with a self-locking structure according to claim 2, characterized in that: A tension spring (5052) is provided between the swing block (5051) and the locking roller (503), and the swing block (5051) and the locking roller (503) are elastically rotatably connected via the tension spring (5052).

4. The gate hoist with a self-locking structure according to claim 1, characterized in that: The locking roller (503) is provided with a spiral cable groove (5031).

5. The gate hoist with a self-locking structure according to claim 1, characterized in that: A slidingly connected shaft frame (505) is provided in the slider (502), and the pressure roller (504) is rotatably connected to the shaft frame (505) via a bearing.

6. The gate hoist with a self-locking structure according to claim 5, characterized in that: The shaft frame (505) is provided with a screw rod (5053) for rotational connection, and the slider (502) is provided with a screw hole, through which the screw rod (5053) passes and is threadedly connected.

7. The gate hoist with a self-locking structure according to claim 5, characterized in that: The surface of the pressing roller (504) is provided with a rubber sleeve (5041).

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