Multifunctional crown block clamp anti-falling device

Abstract

The utility model relates to the technical field of crown block clamps, in particular to a multifunctional crown block clamp anti-falling device which comprises a crown block and a clamp, anti-falling plates are installed on the outer walls of the two sides of the crown block through rotating shafts, a telescopic rod is fixedly installed at the lower end of the crown block, and the telescopic rod is matched with a first extension spring to work. The vibration of the crown block during operation can be effectively reduced, a mounting plate is driven to move through a first connecting rod when violent vibration occurs, the mounting plate drives a telescopic rod and a first extension spring to work while moving to reduce vibration of the crown block, and the mounting plate drives a second connecting rod to move when moving downwards, so that the vibration of the crown block is reduced. And then a second connecting rod is matched with a sliding block to work to extrude a second extension spring, and through work between the two extension springs, the anti-falling device can be always in a normal station no matter the clamp falls off at any time, so that due safety protection use is achieved, and the personal safety of field operating personnel is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of overhead crane clamps, in particular to a multifunctional overhead crane clamp anti-slip device. Background Art

[0002] The multifunctional overhead crane is one of the key equipments designed and manufactured to meet the production needs of the electrolytic workshop of the electrolytic aluminum plant. There is a set of wrench mechanisms on the multifunctional overhead crane, which is designed for loading and unloading cassette clamps. During the process of replacing anodes by the multifunctional overhead crane, it is necessary to use a wrench through the oil cylinder control system to unscrew the cassette clamp on the anode guide rod of the electrolytic cell, and lift the bolt head of the cassette clamp into the wrench screw head to prevent the cassette clamp from falling.

[0003] Chinese patent publication number CN209443092U discloses an anti-slip device for a small box clamp, comprising an anti-slip plate and a limiting mechanism, a screw head component and an anti-slip mechanism arranged on the screw head component, the screw head component comprises a clamping plate and a screw head, the screw head component and the anti-slip mechanism move on the anode guide rod through a guide roller; the anti-slip mechanism comprises a bending plate, the bending plate comprises a vertical portion and a bending portion, the vertical portion is provided with a hollow portion for accommodating the clamping plate, the clamping plate and the bending plate are connected by a pin shaft and the bending plate swings around the pin shaft, and a guide portion is provided on the outer side of the bending plate; the utility model effectively prevents the small box clamp from falling due to the vibration of the overhead crane during the replacement process through the closed cavity formed by the bending plate and the clamping plate groove, thereby playing a protective role.

[0004] The above-mentioned bending plates on both sides can reduce the risk of the small box fixture falling, but in order to facilitate the wrench to take and place the small box fixture, the bending plates on both sides are movably connected to the wrench. When the multifunctional overhead crane is in operation, when the vibration is more severe, the bending plates on both sides are likely to swing. When a fall occurs, the two bending plates cannot completely catch the small box fixture, resulting in a greater risk of falling. Utility Model Content

[0005] In view of the above problems, a multifunctional anti-slip device for the overhead crane clamp is provided. The telescopic rod is used to cooperate with the first tension spring to effectively reduce the vibration of the overhead crane during operation. When severe vibration occurs, the first connecting rod is used to drive the mounting plate to move. The movement of the mounting plate drives the telescopic rod and the first tension spring to work and reduce the vibration of the overhead crane. When the mounting plate moves downward, it also drives the second connecting rod to move, and the second connecting rod cooperates with the slider to squeeze the second tension spring. Through the work between the two tension springs, the anti-fall device can always be in the normal working position no matter when the clamp falls, so as to play the due safety protection role and protect the personal safety of on-site workers.

[0006] To solve the problems of the prior art, the utility model provides a multifunctional anti-slip device for a crown block clamp, comprising a crown block and a clamp, anti-slip plates are installed on the outer walls of both sides of the crown block via a rotating shaft, a telescopic rod is fixedly installed on the lower end of the crown block, a mounting plate is fixedly installed on the telescopic end of the telescopic rod, a first tension spring is sleeved on the outside of the telescopic rod, one end of the first tension spring is fixedly connected to the bottom of the crown block, the other end of the first tension spring is fixedly connected to the top of the mounting plate, first connecting rods are symmetrically installed on the bottom of the mounting plate via a rotating shaft, and the other ends of the two first connecting rods are rotatably connected to the side walls of the two anti-slip plates via a rotating shaft respectively.

[0007] Preferably, a sliding rod is symmetrically installed on the top of the mounting plate through a mounting block, the outside of the sliding rod is slidably connected to a slider, the outside of the sliding rod is sleeved with a second tension spring, one end of the second tension spring is fixedly connected to the slider, and the other end of the second tension spring is fixedly connected to the side wall of the mounting block.

[0008] Preferably, a second connecting rod is installed on the top of the sliding block via a rotating shaft, and one end of the second connecting rod is rotatably connected to the side wall of the anti-slip plate via the rotating shaft.

[0009] Preferably, the side walls of the anti-slip plate are symmetrically mounted with fixing blocks, a support rod is fixedly mounted between the two fixing blocks, and a fixed lifting ear is fixedly mounted on the outside of the support rod and is movably connected with a movable lifting ear.

[0010] Preferably, threaded holes for installing a fixing screw are provided inside the fixed lifting ear and the movable lifting ear, and a nut is connected to the outer thread of the fixing screw.

[0011] Preferably, a clamp is clamped between the fixed lifting ear and the movable lifting ear.

[0012] Preferably, the side wall of the movable lifting ear is fixedly connected to a limiting block.

[0013] Preferably, a side wall of the anti-drop plate is provided with a limiting groove matched with the limiting block.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The telescopic rod cooperates with the first stretch spring to effectively reduce the vibration of the overhead crane during operation. When severe vibration occurs, the first connecting rod drives the mounting plate to move. The movement of the mounting plate drives the telescopic rod and the first stretch spring to reduce the vibration of the overhead crane. When the mounting plate moves downward, it also drives the second connecting rod to move. The second connecting rod cooperates with the slider to squeeze the second stretch spring. Through the work between the two stretch springs, no matter when the fixture falls, the anti-fall device can always be in the normal working position, play the due safety protection role, and protect the personal safety of on-site workers.

[0016] 2. The movable lifting ear is slidably connected to the side wall of the anti-drop plate, so the distance between the movable lifting ear and the fixed lifting ear can be adjusted. At the same time, different sizes of fixtures can be installed, which is convenient for carrying more tools. A threaded hole is installed between the movable lifting ear and the fixed lifting ear, which is convenient for using a screw to limit the movable lifting ear and the fixed lifting ear to prevent the overhead crane from falling during transportation of the fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a schematic diagram of the overall structure of a multifunctional anti-slip device for overhead travelling crane clamps.

[0018] Figure 2 The present invention is a partial structural diagram of a multifunctional anti-slip device for a crown block clamp.

[0019] Figure 3 The present invention is a structural schematic diagram of an anti-falling component in a multifunctional crown crane clamp anti-falling device.

[0020] Figure 4 It is an enlarged structural schematic diagram of point A in the multifunctional crown crane clamp anti-slip device.

[0021] The numbers in the figure are: 1. overhead crane; 2. anti-slip plate; 3. first connecting rod; 4. mounting plate; 5. second connecting rod; 6. fixed lifting ear; 7. clamp; 8. support rod; 9. fixed block; 10. fixed screw; 11. movable lifting ear; 12. telescopic rod; 13. first tension spring; 14. sliding rod; 15. second tension spring; 16. sliding block; 17. limit groove; 18. limit block. DETAILED DESCRIPTION

[0022] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] like Figures 1 to 4 As shown, the utility model provides:

[0024] A multifunctional anti-slip device for a crown block clamp comprises a crown block 1 and a clamp 7, anti-slip plates 2 are installed on the outer walls of both sides of the crown block 1 through a rotating shaft, a telescopic rod 12 is fixedly installed on the lower end of the crown block 1, a mounting plate 4 is fixedly installed on the telescopic end of the telescopic rod 12, a first tension spring 13 is sleeved on the outer side of the telescopic rod 12, one end of the first tension spring 13 is fixedly connected to the bottom of the crown block 1, and the other end of the first tension spring 13 is fixedly connected to the top of the mounting plate 4, first connecting rods 3 are symmetrically installed on the bottom of the mounting plate 4 through a rotating shaft, and the other ends of the two first connecting rods 3 are rotatably connected to the side walls of the two anti-slip plates 2 through the rotating shaft respectively.

[0025] By the telescopic rod 12 cooperating with the first tension spring 13, the vibration of the overhead crane 1 during operation can be effectively reduced. When severe vibration occurs, the first connecting rod 3 drives the mounting plate 4 to move. The movement of the mounting plate 4 drives the telescopic rod 12 and the first tension spring 13 to work and reduce the vibration of the overhead crane 1, thereby playing the due safety protection role and protecting the personal safety of on-site workers.

[0026] like Figure 1 and Figure 3 As shown, a slide rod 14 is symmetrically installed on the top of the mounting plate 4 through a mounting block, and a slider 16 is slidably connected to the outside of the slide rod 14. A second tension spring 15 is sleeved on the outside of the slide rod 14, and one end of the second tension spring 15 is fixedly connected to the slider 16, and the other end of the second tension spring 15 is fixedly connected to the side wall of the mounting block.

[0027] When the mounting plate 4 moves downward, the second connecting rod 5 will also be driven to move, and then the second connecting rod 5 cooperates with the slider 16 to squeeze the second tension spring 15. The two tension springs work to further prevent the fixture 7 from falling, so that the anti-fall device can always be in a normal working position and play the proper safety protection role.

[0028] like Figure 3 As shown, a second connecting rod 5 is installed on the top of the slider 16 via a rotating shaft, and one end of the second connecting rod 5 is rotatably connected to the side wall of the anti-slip plate 2 via the rotating shaft.

[0029] Through the rotational connection between the second connecting rod 5 and the anti-dropping plate 2 , the second connecting rod 5 can drive the anti-dropping plate 2 to work and squeeze the second tension spring 15 .

[0030] like Figure 2 As shown, the side wall of the anti-slip plate 2 is symmetrically mounted with fixing blocks 9, a support rod 8 is fixedly mounted between the two fixing blocks 9, and a fixed lifting ear 6 is fixedly mounted on the outside of the support rod 8 and is movably connected with a movable lifting ear 11.

[0031] The fixture 7 is conveniently connected by means of the through holes in the fixed lifting ear 6 and the movable lifting ear 11 .

[0032] like Figure 2 As shown, threaded holes for installing the fixing screw 10 are provided inside the fixing lifting lug 6 and the movable lifting lug 11, and a nut is connected to the outer thread of the fixing screw 10.

[0033] By installing a threaded hole between the movable lifting ear 11 and the fixed lifting ear, it is convenient to use a screw to limit the movable lifting ear 11 and the fixed lifting ear, preventing the overhead crane 1 from falling on the transport fixture 7, and further ensuring the personal safety of on-site workers.

[0034] like Figure 2 As shown, a clamp 7 is clamped between the fixed lifting eye 6 and the movable lifting eye 11 .

[0035] The clamp 7 facilitates the staff to complete the pole changing operation.

[0036] like Figure 4 As shown, the side wall of the movable lifting ear 11 is fixedly connected to the limiting block 18 .

[0037] The distance between the movable lifting ear 11 and the fixed lifting ear 6 can be conveniently adjusted by the limiting block 18, so that the fixtures 7 of different sizes can be conveniently installed, and more tools can also be conveniently carried.

[0038] like Figure 4 As shown, the side wall of the anti-drop plate 2 is provided with a limiting groove 17 matched with the limiting block 18 .

[0039] The limiting groove 17 can make the limiting block 18 more stable during the movement, and can also prevent the movable lifting ear 11 from being displaced during the movement.

[0040] The above embodiments only express a multifunctional anti-slip device for overhead travelling crane clamps or several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the attached claims.

Claims

1. A multifunctional anti-slip device for a crown block clamp, the anti-slip device is applied to a crown block, and is characterized in that: The invention comprises an overhead crane (1) and a clamp (7), wherein the outer walls on both sides of the overhead crane (1) are both provided with anti-slip plates (2) via a rotating shaft, a telescopic rod (12) is fixedly installed at the lower end of the overhead crane (1), a mounting plate (4) is fixedly installed at the telescopic end of the telescopic rod (12), a first tension spring (13) is sleeved on the outside of the telescopic rod (12), one end of the first tension spring (13) is fixedly connected to the bottom of the overhead crane (1), the other end of the first tension spring (13) is fixedly connected to the top of the mounting plate (4), the bottom of the mounting plate (4) is symmetrically provided with first connecting rods (3) via a rotating shaft, and the other ends of the two first connecting rods (3) are rotatably connected to the side walls of the two anti-slip plates (2) via a rotating shaft respectively.

2. A multifunctional anti-slip device for a crown block clamp according to claim 1, characterized in that: A slide bar (14) is symmetrically mounted on the top of the mounting plate (4) via a mounting block, the outside of the slide bar (14) is slidably connected to a slider (16), the outside of the slide bar (14) is sleeved with a second tension spring (15), one end of the second tension spring (15) is fixedly connected to the slider (16), and the other end of the second tension spring (15) is fixedly connected to the side wall of the mounting block.

3. A multifunctional anti-slip device for crown block clamps according to claim 2, characterized in that: A second connecting rod (5) is installed on the top of the sliding block (16) via a rotating shaft, and one end of the second connecting rod (5) is rotatably connected to the side wall of the anti-slip plate (2) via the rotating shaft.

4. The multifunctional anti-slip device for crown block clamp according to claim 1, characterized in that: The side walls of the anti-slip plate (2) are symmetrically mounted with fixing blocks (9), a support rod (8) is fixedly mounted between the two fixing blocks (9), and a fixed lifting lug (6) is fixedly mounted on the outside of the support rod (8) and is movably connected with a movable lifting lug (11).

5. A multifunctional anti-slip device for crown block clamps according to claim 4, characterized in that: The interior of the fixed lifting ear (6) and the movable lifting ear (11) are both provided with threaded holes for installing the fixed screw rod (10), and the external thread of the fixed screw rod (10) is connected with a nut.

6. The multifunctional anti-slip device for crown block clamp according to claim 4, characterized in that: A clamp (7) is clamped between the fixed lifting ear (6) and the movable lifting ear (11).

7. The multifunctional anti-slip device for crown block clamp according to claim 4, characterized in that: The side wall of the movable lifting ear (11) is fixedly connected to a limiting block (18).

8. The multifunctional anti-slip device for crown block clamp according to claim 1, characterized in that: The side wall of the anti-drop plate (2) is provided with a limiting groove (17) adapted to the limiting block (18).

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