A kind of anti-fall protection device and its lifting device

Abstract

The utility model relates to an anti-fall protection device and an elevator thereof, which are used to prevent the moving parts of the elevator from falling. The anti-fall protection device comprises a fixed bracket; a follower, which is slidably connected to the fixed bracket in a vertical direction, the follower extends in a vertical direction, the follower is connected to the moving part and rises and falls synchronously with the moving part; a clamping component, which is connected to the fixed bracket, the clamping component comprises an open state and a clamping state, the clamping component in the open state releases the follower, and the clamping component in the clamping state clamps the follower, wherein the open state and the clamping state are both associated with the elevator, and the clamping component is triggered to switch from the open state to the clamping state when the elevator is abnormal; the utility model, by arranging the follower and the clamping component, can effectively pull the moving part through the follower when the elevator fails, so as to prevent the moving part from falling rapidly.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-falling of elevators, in particular to an anti-falling protection device and an elevator thereof. Background Art

[0002] Elevators are often used to raise or lower the height of workpieces. The quality of elevators varies. If the elevator belt or lifting chain breaks or the elevator suddenly loses power, the workpiece will fall rapidly. In addition, if the moving parts are not firmly fixed, the moving parts and the workpiece in them will fall rapidly, not only causing the workpiece to be scrapped, but also posing a serious threat to the personal safety of people below. Therefore, improving the strength of the elevator belt or lifting chain or strengthening the elevator maintenance cannot completely avoid the problem of workpiece falling. Utility Model Content

[0003] To this end, the technical problem to be solved by the utility model is to overcome the problem in the prior art that the power failure of the elevator causes the moving parts of the elevator to fall rapidly, and then to provide an anti-fall protection device that can effectively pull the moving parts when the elevator fails to prevent the moving parts from falling rapidly.

[0004] In order to solve the above technical problems, the utility model provides an anti-fall protection device, which is used to prevent the moving parts of the elevator from falling, including:

[0005] Fixed bracket;

[0006] A follower, which is slidably connected to the fixed bracket in a vertical direction, the follower extends in a vertical direction, is connected to the moving component and rises and falls synchronously with the moving component;

[0007] A clamping assembly is connected to the fixed bracket, and the clamping assembly includes an open state and a clamping state. When the clamping assembly is in the open state, it releases the follower, and when the clamping assembly is in the clamping state, it clamps the follower. The open state and the clamping state are both associated with the elevator. When the elevator is abnormal, the clamping assembly is triggered to switch from the open state to the clamping state.

[0008] In one embodiment of the present invention, it further comprises a sleeve fixedly connected to the fixing bracket, wherein the sleeve extends in a vertical direction and is sleeved on the follower.

[0009] In one embodiment of the present utility model, the fixing bracket includes a crossbeam and supporting feet connected to two ends of the crossbeam, and the sleeve is connected to the middle part of the crossbeam.

[0010] In one embodiment of the present invention, the clamping assembly is detachably connected to the free end of the sleeve via a connecting piece.

[0011] In one embodiment of the utility model, a connecting seat is provided at the free end of the driven member, and the connecting seat is connected to the moving member through a connecting member.

[0012] In one embodiment of the present invention, the clamping assembly is associated with a first driver of the elevator, and power failure or failure of the first driver triggers the clamping assembly to switch from the open state to the clamping state.

[0013] In one embodiment of the present invention, the clamping assembly is associated with a belt or a lifting chain of the elevator, and the breaking of the belt or the lifting chain triggers the clamping assembly to switch from the open state to the clamping state.

[0014] In one embodiment of the present invention, the clamping assembly includes a second driver and a clamping member, the clamping member is sleeved on the driven member, and the second driver drives the clamping member to contract or expand.

[0015] In one embodiment of the present invention, the follower is configured as a round rod.

[0016] In order to solve the above problems, a lift is also provided, comprising:

[0017] Motor,

[0018] A reduction box connected to the motor;

[0019] A telescopic assembly connected to the reduction box, the telescopic assembly comprising a telescopic rod extending in a vertical direction, the motor drives the telescopic rod to extend and retract in the vertical direction, and the free end of the telescopic rod is fixedly connected to the moving component;

[0020] Also included is the anti-fall protection device, wherein

[0021] The lifter and the sleeve are respectively fixedly connected to both sides of the middle of the fixed bracket, the maximum extension of the follower is at least equal to the maximum extension of the telescopic rod, the connecting seat is fixedly connected to the moving part through a connecting member, and the motor is associated with the clamping assembly.

[0022] The above technical solution of the utility model has the following beneficial effects compared with the prior art:

[0023] The anti-fall protection device described in the utility model, when the moving part falls, clamps the follower through the clamping assembly, and the follower then pulls the moving part, effectively preventing the moving part from falling; the open state and the clamping state of the clamping assembly are set to be associated with the working state of the elevator. When an abnormality occurs in the elevator, the clamping assembly switches to the clamping state at the first time to clamp the follower, thereby improving the sensitivity of the anti-fall protection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein

[0025] Figure 1 It is a schematic structural diagram of an anti-fall protection device and an elevator in a preferred embodiment of the utility model.

[0026] Figure 2 for Figure 1 A schematic structural diagram of a side view of a fall protection device and a lift is shown.

[0027] Figure 3 for Figure 1 The structure diagram of the cross-sectional view of the sleeve, follower and clamping assembly of the anti-fall protection device shown.

[0028] Explanation of the reference numerals in the drawings in the specification: 1. Fixed bracket; 11. Crossbeam; 12. Support foot; 2. Motor; 21. Free end of telescopic assembly; 3. Telescopic assembly; 4. Sleeve; 5. Clamping assembly; 6. Follower; 61. Connecting seat; 7. Reducer box; 8. Lifter; 9. Anti-fall protection device. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0030] Example

[0031] Reference Figure 1 and 2 As shown, in one embodiment of the present utility model, a fall protection device is used to prevent the moving part of the elevator 8 from falling, and the workpiece is placed in the moving part, including:

[0032] Fixed bracket 1;

[0033] A follower 6, which is slidably connected to the fixed bracket 1 in the vertical direction, and the follower 6 extends in the vertical direction. The follower 6 is connected to the moving part through a connecting member and rises and falls synchronously with the moving part;

[0034] The clamping assembly 5 is connected to the fixed bracket 1, and the clamping assembly 5 includes two states: an open state and a clamping state. When the elevator 8 works normally, the clamping assembly 5 in the open state releases the follower 6. When the elevator 8 works abnormally, the clamping assembly 5 in the clamping state clamps the follower 6. The open state and the clamping state are both associated with the elevator 8, such as by sensor detection, circuit closure, etc. When the elevator 8 is abnormal, the clamping assembly 5 is triggered to switch from the open state to the clamping state to clamp the follower 6, and the follower 6 pulls the moving part to prevent it from falling.

[0035] In one embodiment of the present invention, referring to Figure 1 As shown, in order to improve the stability of the follower 6, a sleeve 4 fixedly connected to the fixing bracket 1 is further included. The sleeve 4 extends in the vertical direction and is sleeved on the outside of the follower 6. The sleeve 4 is also used to guide the follower 6.

[0036] In one embodiment of the present invention, referring to Figure 1 As shown, the fixed bracket 1 includes a cross beam 11 and supporting feet 12 connected to both ends of the cross beam 11, the supporting feet 12 are used to horizontally support the cross beam 11, the length of the cross beam 11 is greater than the height of the supporting feet 12, and the sleeve 4 can be disassembled and fixedly connected to the middle part of the cross beam 11.

[0037] In one embodiment of the present invention, referring to Figure 1 As shown, the clamping assembly 5 can be detachably connected to the free end of the sleeve 4 through a connecting piece, so as to disassemble, maintain and replace the clamping assembly 5.

[0038] In one embodiment of the present invention, referring to Figure 1 As shown, a connecting seat 61 is provided at the free end of the follower 6. The connecting seat 61 is located at the same height as the moving component, and the connecting seat 61 is connected to the moving component via a connecting member.

[0039] In one embodiment of the present invention, referring to Figure 1 As shown, the clamping component 5 is associated with the first driver of the lift 8, and the first driver includes a motor. When the motor is powered off, the clamping component 5 is triggered to switch from the open state to the clamping state through a circuit. In other embodiments, when an abnormality or failure occurs inside the motor, the clamping component 5 can also be triggered to switch from the open state to the clamping state through a circuit or sensor detection method. The first driver also includes a cylinder. When the cylinder is in an abnormal working state, the clamping component 5 can be triggered to switch from the open state to the clamping state after sensor detection.

[0040] In one embodiment of the present invention, referring to Figure 1 As shown, the clamping component 5 is also associated with the belt or lifting chain of the elevator 8, such as by detecting the status of the belt and the lifting chain, and the abnormal movement state of the moving parts through sensors. If the belt or the lifting chain is broken, the sensor detects and transmits the signal to the clamping component 5, thereby triggering the clamping component 5 to switch from the open state to the clamping state, thereby relatively comprehensively preventing the moving parts from falling.

[0041] In one embodiment of the present invention, referring to Figure 1 As shown, the clamping assembly 5 includes a second driver and a clamping member, the clamping member is sleeved on the follower 6, the clamping member includes two states, open and contracted, the second driver drives the clamping member to contract or open, the second driver is preferably a motor, and the first driver is associated with the second driver.

[0042] In one embodiment of the present invention, referring to Figure 3 As shown, the driven member 6 is configured as a round rod.

[0043] As reference Figure 1 and 2 As shown, in order to solve the above problems, a lift is also provided, comprising:

[0044] Motor 1,

[0045] A reduction box 7, which is connected to the motor and fixedly connected to the crossbeam 11;

[0046] A telescopic assembly 3 connected to the reduction box 7, the telescopic assembly 3 comprising a telescopic rod extending in a vertical direction, a free end 21 of the telescopic rod being fixedly connected to a moving part, and the motor 1 driving the telescopic rod to extend and retract in a vertical direction to lift or lower the moving part;

[0047] Also included is the anti-fall protection device 9, wherein

[0048] The elevator 8 and the sleeve 4 are respectively fixedly connected to both sides of the middle of the fixed bracket 1, the maximum extension of the follower 6 is at least equal to the maximum extension of the telescopic rod, the connecting seat 61 is fixedly connected to the moving part through a connecting member, and the motor 2 is associated with the clamping assembly 5.

[0049] The working principle of the anti-fall protection device of the utility model is:

[0050] The follower 6 is fixedly connected to the moving part of the elevator 8 through a connecting piece. When the motor 2 drives the moving part and the follower 6 to rise or fall synchronously, if the motor 2 is powered off, the clamping assembly 5 will immediately switch to the clamping state and clamp the follower 6 to prevent the follower 6 from falling. The follower 6 is used to hold the moving part to prevent it from falling.

[0051] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A fall protection device for preventing the moving parts of a lift from falling, characterized in that: include, Fixed bracket; A follower, which is slidably connected to the fixed bracket in a vertical direction, the follower extends in a vertical direction, is connected to the moving component and rises and falls synchronously with the moving component; A clamping assembly is connected to the fixed bracket, and the clamping assembly includes an open state and a clamping state. When the clamping assembly is in the open state, it releases the follower, and when the clamping assembly is in the clamping state, it clamps the follower. The open state and the clamping state are both associated with the elevator. When the elevator is abnormal, the clamping assembly is triggered to switch from the open state to the clamping state.

2. The anti-fall protection device according to claim 1, characterized in that: It also includes a sleeve fixedly connected to the fixed bracket, wherein the sleeve extends in a vertical direction and is sleeved on the driven member.

3. A fall protection device according to claim 2, characterized in that: The fixing bracket comprises a crossbeam and supporting feet connected to two ends of the crossbeam, and the sleeve is connected to the middle part of the crossbeam.

4. The anti-fall protection device according to claim 2, characterized in that: The clamping assembly is detachably connected to the free end of the sleeve via a connecting piece.

5. The anti-fall protection device according to claim 1, characterized in that: A connecting seat is provided at the free end of the driven member, and the connecting seat is connected to the moving member through a connecting member.

6. The anti-fall protection device according to claim 1, characterized in that: The clamping assembly is associated with a first drive of the lift, and power failure or failure of the first drive triggers the clamping assembly to switch from the open state to the clamping state.

7. The anti-fall protection device according to claim 1, characterized in that: The clamping assembly is associated with a belt or a lifting chain of the elevator, and the breaking of the belt or the lifting chain triggers the clamping assembly to switch from the open state to the clamping state.

8. The anti-fall protection device according to claim 1, characterized in that: The clamping assembly includes a second driver and a clamping member, wherein the clamping member is sleeved on the driven member, and the second driver drives the clamping member to contract or expand.

9. The anti-fall protection device according to claim 1, characterized in that: The driven member is configured in a round rod shape.

10. A lift, characterized in that: include, Motor, A reduction box connected to the motor; A telescopic assembly connected to the reduction box, the telescopic assembly comprising a telescopic rod extending in a vertical direction, the motor drives the telescopic rod to extend and retract in the vertical direction, and the free end of the telescopic rod is fixedly connected to the moving component; Also includes a fall protection device as claimed in any one of claims 1 to 9, wherein The lifter and the sleeve are respectively fixedly connected to both sides of the middle of the fixed bracket, the maximum extension of the follower is at least equal to the maximum extension of the telescopic rod, the connecting seat is fixedly connected to the moving part through a connecting member, and the motor is associated with the clamping assembly.

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