Safe lifting appliance mechanism

Abstract

The utility model relates to the technical field of lifting appliances, in particular to a safety type lifting appliance mechanism which comprises a connecting frame, a pneumatic control device arranged on the side face and straight grooves formed in the two sides of the inner wall of the connecting frame, the two limiting inclined blocks are movably arranged on the inner walls of the corresponding straight grooves, and push rods are movably arranged at the tops of the corresponding limiting inclined blocks. According to the safety type lifting appliance mechanism, the push rod can be driven to move through the arranged pneumatic assembly, the push rod can drive the limiting inclined block to rotate, and therefore the safety type lifting appliance mechanism can be automatically opened, and the safety type lifting appliance mechanism can be automatically unlocked only by stopping working of the pneumatic assembly. When the safety device fails, the limiting inclined block resets under the action of gravity, hanging of the goods is completed, the limiting inclined block and the pneumatic assembly can control the whole carrying of the goods, and after the safety device fails, due to the fact that the safety device can only achieve the effect through pneumatic and self-weight, potential safety hazards caused by failure of the safety device in the hoisting construction operation are eradicated.

Description

Technical Field

[0001] The utility model relates to the technical field of slings, and in particular to a safety sling mechanism. Background Art

[0002] Safety spreader mechanisms are spreader systems designed to ensure the safety of personnel and goods during the lifting, handling, and positioning of goods. With the development of industrial technology and the increasing requirements for workplace safety, safety spreader mechanisms are becoming increasingly important.

[0003] However, in actual use, the safety sling mechanism is set when lifting or moving goods, aiming to provide a safer working environment for the entire movement process, especially in solving the problem of limited space operations in drainage pumping stations. The existing hook needs to be hung on the object and transported by the hook. The sling is opened and the object is lowered after reaching the pump pool. However, the entire transportation process requires manual assistance, especially when lifting objects and opening and releasing objects. Due to the small space in the pump pool, it may cause harm to workers during transportation. In addition, the existing sling safety device still needs manual control to close and open, which increases the complexity of operation and potential safety risks. For this reason, we propose a safety sling mechanism.

[0004] Practical content

[0005] A technical problem to be solved by this application is: how to design a safe sling mechanism that can be used for slinging in the event of failure of the safety device.

[0006] To solve the above technical problems, the present invention provides a safety sling mechanism, comprising a connecting frame, a pneumatic control device arranged on the side, and straight grooves provided on both sides of the inner wall of the connecting frame, and further comprising:

[0007] Limiting oblique blocks, two of which are arranged movably on the inner wall of the corresponding straight groove;

[0008] A push rod, the push rod being movably arranged on the top of the corresponding limiting inclined block;

[0009] The pneumatic component is arranged on the connecting frame and is used to drive the push rod to move through the pneumatic control device. The push rod can drive the limit bevel block to rotate, so that the limit bevel block forms a collision-type unlocking through the push rod.

[0010] In some embodiments, the pneumatic component includes a tee pipe arranged on a connecting frame, a main hose is arranged on the top of the tee pipe, the end face of the main hose is arranged on the side of the pneumatic control device, and the pneumatic control device is connected to the tee pipe through the arranged main hose.

[0011] In some embodiments, connecting shells are provided on both sides of the connecting frame, pneumatic parts are provided on the inner walls of the two connecting shells, secondary hoses are provided between the three-way pipe and the two pneumatic parts, and the two pneumatic parts are used to drive the corresponding push rods to move up and down.

[0012] In some embodiments, a fixing rod is movably provided inside the limiting bevel block, the outer surface of the fixing rod is provided inside the connecting frame, an annular groove is provided on the inner wall of the straight groove, and a plurality of balls are movably inlaid on the side of the limiting bevel block, and the outer surfaces of the plurality of balls are movably provided on the inner wall of the annular groove.

[0013] In some embodiments, a counterweight block is movably provided at the bottom of the limiting oblique block, a screw is movably provided inside the counterweight block, and the outer surface of the screw is threadedly connected to the inside of the limiting oblique block.

[0014] In some embodiments, a groove is provided on the top of the connecting frame, and a hanging ring is movably provided on the inner wall of the groove.

[0015] In some embodiments, an arcuate groove is provided on the top of the limiting bevel block near the push rod, a gasket is provided on the inner wall of the arcuate groove and the top of the limiting bevel block, and the end face of the push rod is movably provided on the gasket.

[0016] This utility model has at least the following beneficial effects:

[0017] 1. The pneumatic assembly can drive the push rod to move, and the push rod can drive the limit bevel to rotate, so that it can open automatically. As long as the pneumatic assembly stops working, the limit bevel will reset under the action of gravity, completing the hanging of the goods, thus eliminating the safety risks of workers hooking and unhooking in dangerous working areas;

[0018] 2. The set limit inclined blocks and pneumatic components can control the entire handling of the goods. After the safety device fails, it can only use pneumatics and its own weight to achieve the effect, thus eliminating the safety hazards caused by the failure of the safety device during the lifting operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility;

[0020] Figure 2 This is a structural diagram of the practical connecting frame, pneumatic components and limiting inclined blocks;

[0021] Figure 3 This is a schematic diagram of the exploded structure of the practical pneumatic component;

[0022] Figure 4 This is a schematic diagram of the exploded structure of the practical connecting frame, lifting ring and limiting inclined block;

[0023] Figure 5 This is a schematic diagram of the explosion structure of the practical limit inclined block, counterweight block and ball;

[0024] Figure 6 Schematic diagram of the structure of the connecting frame and gasket of this utility model;

[0025] Figure 7 This is a schematic diagram of the structure of the practical limit block and gasket.

[0026] In the figure: 1. Connecting frame; 2. Pneumatic assembly; 21. Main hose; 22. Tee pipe; 23. Secondary hose; 24. Pneumatic part; 25. Connecting shell; 3. Limiting bevel block; 4. Push rod; 5. Lifting ring; 6. Straight groove; 7. Groove; 8. Ring groove; 9. Pneumatic control device; 10. Fixing rod; 11. Counterweight; 12. Screw; 13. Ball; 14. Gasket; 15. Arc groove. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the practical embodiment to clearly and completely describe the technical solutions in the practical embodiment. Obviously, the described embodiment is only a part of the embodiment of this utility, not all of the embodiments. Based on the embodiment of this utility, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this utility.

[0028] Example 1

[0029] See also Figure 1-5 , this utility provides a technical solution:

[0030] A safety sling mechanism includes a connecting frame 1, a pneumatic control device 9 arranged on the side, and straight grooves 6 opened on both sides of the inner wall of the connecting frame 1, and also includes:

[0031] The limiting oblique block 3 is set at two, and its movable setting is on the inner wall of the corresponding straight groove 6. The setting of the limiting oblique block 3 can hang the goods;

[0032] Push rod 4, push rod 4 is movably arranged on the top of the corresponding limit bevel block 3, and push rod 4 can drive the limit bevel block 3 to rotate;

[0033] Pneumatic component 2 is arranged on the connecting frame 1, and is used to drive the push rod 4 to move by the gas inside the pneumatic component 2 through the pneumatic control device 9. The push rod 4 can drive the limiting bevel block 3 to rotate, so that the limiting bevel block 3 forms a collision-type unlocking through the push rod 4.

[0034] The pneumatic component 2 includes a tee pipe 22 arranged on the connecting frame 1, and a main hose 21 is arranged on the top of the tee pipe 22. The end face of the main hose 21 is arranged on the side of the pneumatic control device 9, and the pneumatic control device 9 is connected to the tee pipe 22 through the arranged main hose 21. The pneumatic control device 9 can transport gas through the main hose 21.

[0035] A connecting shell 25 is provided on both sides of the connecting frame 1, and a pneumatic part 24 is provided on the inner wall of the two connecting shells 25. A secondary hose 23 is provided between the three-way pipe 22 and the two pneumatic parts 24. The two pneumatic parts 24 are used to drive the corresponding push rod 4 to move up and down. The gas will be transported into the interior of the secondary hose 23 through the three-way pipe 22, thereby driving the internal push of the pneumatic part 24 to move up and down.

[0036] A fixing rod 10 is movably provided inside the limiting bevel block 3, and the outer surface of the fixing rod 10 is set inside the connecting frame 1. An annular groove 8 is provided on the inner wall of the straight groove 6. A plurality of balls 13 are movably inlaid on the side of the limiting bevel block 3. The outer surfaces of the plurality of balls 13 are movably provided on the inner wall of the annular groove 8. The provided balls 13 will rotate with the limiting bevel block 3, and the balls 13 can rotate inside the annular groove 8. Therefore, when the limiting bevel block 3 performs self-repositioning, a certain amount of friction is reduced.

[0037] A counterweight block 11 is movably provided at the bottom of the limiting bevel block 3, and a screw 12 is movably provided inside the counterweight block 11. The outer surface of the screw 12 is threadedly connected to the inside of the limiting bevel block 3. The set counterweight block 11 can make the limiting bevel block 3 flip over to prevent it from being unable to reset.

[0038] A groove 7 is provided on the top of the connecting frame 1, and a lifting ring 5 is movably provided on the inner wall of the groove 7. The lifting ring 5 can be connected to a hook so that the entire device can be moved and transported to a designated location.

[0039] When using this device, when the connecting frame 1 moves to the cargo position, the pneumatic control device 9 is started to transport the internal gas through the main hose 21 to the inside of the tee pipe 22, and then to the inside of the two secondary hoses 23 through the tee pipe 22, so that the screw pneumatic part 24 moves, and the two pneumatic parts 24 drive the push rod 4 set inside to move downward, so that the push rod 4 drives the limiting inclined block 3 to rotate around the fixed rod 10, thereby opening the connecting frame 1 and entering the cargo. The pneumatic control device 9 works again, and the air is set through the main hose 21 and the secondary hose 2 3 makes the pneumatic part 24 move, and the pneumatic part 24 drives the push rod 4 to rise. At this time, the limiting ramp 3 will be closed under the counterweight block 11 and its own weight, which can prevent the goods from falling off. The entire device only requires the gas of the pneumatic control device 9, and the closing is the dead weight of the limiting ramp 3. Therefore, when the safety device fails, it can still work independently. Therefore, if a problem occurs in the relatively narrow space of the drainage pump station, the device can be used to hoist the workpiece down the well for maintenance, and there is no need for underground workers to manually open or close the hoist, which can be more convenient to use.

[0040] Example 2

[0041] See also Figure 6-7 , this utility provides a technical solution:

[0042] Different from Example 1, an arc-shaped groove 15 is provided on the top of the limiting bevel block 3 near the push rod 4, and a gasket 14 is provided on the inner wall of the arc-shaped groove 15 and the top of the limiting bevel block 3, and the end face of the push rod 4 is movably set on the gasket 14. The material of the gasket 14 is silicon nitride, which is very wear-resistant and can increase the service life.

[0043] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0044] 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety sling mechanism, comprising a connecting frame (1), a pneumatic control device (9) arranged on the side, and straight grooves (6) provided on both sides of the inner wall of the connecting frame (1), characterized in that: Also included are: Limiting inclined blocks (3), the limiting inclined blocks (3) are arranged at two positions and are movably arranged on the inner wall of the corresponding straight groove (6); A push rod (4), wherein the push rod (4) is movably arranged on the top of the corresponding limiting inclined block (3); A pneumatic assembly (2) is provided on a connecting frame (1) and is used to drive a push rod (4) to move by means of a pneumatic control device (9) so that the gas inside the pneumatic assembly (2) drives the push rod (4) to move. The push rod (4) can drive a limiting bevel block (3) to rotate, so that the limiting bevel block (3) is unlocked by collision through the push rod (4).

2. The safety sling mechanism according to claim 1, characterized in that: The pneumatic assembly (2) comprises a three-way pipe (22) arranged on the connecting frame (1); a main hose (21) is arranged on the top of the three-way pipe (22); the end face of the main hose (21) is arranged on the side of the pneumatic control device (9); and the pneumatic control device (9) and the three-way pipe (22) are connected through the arranged main hose (21).

3. The safety sling mechanism according to claim 2, characterized in that: Connecting shells (25) are provided on both sides of the connecting frame (1), and pneumatic parts (24) are provided on the inner walls of the two connecting shells (25). Secondary hoses (23) are provided between the three-way pipe (22) and the two pneumatic parts (24), and the two pneumatic parts (24) are used to drive the corresponding push rods (4) to move up and down.

4. The safety sling mechanism according to claim 3, characterized in that: A fixing rod (10) is movably provided inside the limiting bevel block (3), and the outer surface of the fixing rod (10) is arranged inside the connecting frame (1). An annular groove (8) is provided on the inner wall of the straight groove (6). A plurality of balls (13) are movably embedded on the side surface of the limiting bevel block (3), and the outer surfaces of the plurality of balls (13) are movably provided on the inner wall of the annular groove (8).

5. The safety sling mechanism according to claim 4, characterized in that: A counterweight block (11) is movably provided at the bottom of the limiting oblique block (3), and a screw (12) is movably provided inside the counterweight block (11), and the outer surface of the screw (12) is threadedly connected to the inside of the limiting oblique block (3).

6. The safety sling mechanism according to claim 5, characterized in that: A groove (7) is provided on the top of the connecting frame (1), and a hanging ring (5) is movably provided on the inner wall of the groove (7).

7. The safety sling mechanism according to claim 6, characterized in that: The top of the limiting bevel block (3) close to the push rod (4) is provided with an arc groove (15), the inner wall of the arc groove (15) and the top of the limiting bevel block (3) are both provided with a gasket (14), and the end face of the push rod (4) is movably provided on the gasket (14).

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