Lifting clamp for compressed gas tank

Abstract

The utility model belongs to the technical field of hoisting clamps, and particularly relates to a hoisting clamp for a compressed gas tank, which comprises a steel wire rigging and a lifting hook, a rectangular rod is fixedly connected between the steel wire rigging and the lifting hook, a rectangular ring is slidably connected to the side wall of the rectangular rod, an extrusion ring is arranged at the bottom of the rectangular ring, and the extrusion ring is connected with the lifting hook. The side wall of the rectangular ring is fixedly connected with four L-shaped connecting rods used for supporting the extrusion ring, the four L-shaped connecting rods are fixedly connected to the top end of the extrusion ring, and the inner wall of the rectangular rod is rotationally connected with a lifting driving screw. Different vertical forces are applied to the compressed gas tank through the extrusion ring and the lifting hook, so that the lifting hook and the extrusion ring can clamp the compressed gas tank, and the extrusion ring extrudes and limits the compressed gas tank, so that the situation that the compressed gas tank shakes due to the influence of the lifting hook is prevented, and the stability of the compressed gas tank during lifting is improved; and the stability of the stored gas in the compressed gas tank and the accuracy of the released gas at the required position can be kept.

Description

Technical Field

[0001] The utility model belongs to the technical field of lifting clamps, and in particular relates to a lifting clamp for a compressed gas tank. Background Art

[0002] A compressed gas tank is a device used to store compressed air, usually made of metal, such as steel or aluminum. This device usually consists of a sealed container and a pressure gauge, and is used to store compressed air generated by a compressor or other compression equipment;

[0003] Compressed gas tanks usually use lifting clamps when they need to be hung or moved. The lifting clamps are used to safely lift, carry or hang various heavy objects to ensure safety and efficiency in the workplace. The compressed gas tanks can be towed by connecting the traction rope and the hook to the lifting ring on the top of the compressed gas tank. However, in actual use, since the compressed gas tank is connected to the hook through the lifting ring, it is easy for the compressed gas tank and the hook to swing and shake during the lifting process, which affects the stability of the gas inside the compressed gas tank. In addition, after the compressed gas tank is transferred to the desired location, the shaking compressed gas tank is difficult to accurately position. Utility Model Content

[0004] The utility model provides a lifting fixture for a compressed gas tank, which has the characteristic of solving the problem that the compressed gas tank and the lifting hook are prone to swing and shake during the lifting process.

[0005] The utility model provides the following technical scheme: it comprises a wire rigging and a hook, wherein a rectangular rod is fixedly connected between the wire rigging and the hook, a rectangular ring is slidably connected to the side wall of the rectangular rod, an extrusion ring is arranged at the bottom of the rectangular ring, four L-shaped connecting rods for supporting the extrusion ring are fixedly connected to the side wall of the rectangular ring, the four L-shaped connecting rods are all fixedly connected to the top of the extrusion ring, the extrusion ring does not contact the rectangular rod and the hook, a lifting drive screw is rotatably connected to the inner wall of the rectangular rod, four sliding grooves are arranged on the side wall of the rectangular rod, a threaded tube is arranged in the rectangular ring, the threaded tube is threadedly connected to the side wall of the lifting drive screw, and a motor corresponding to the lifting drive screw is installed in the rectangular rod.

[0006] Among them, four connecting blocks are fixedly connected to the inner wall of the rectangular ring, and the four connecting blocks are all fixedly connected to the side wall of the threaded pipe, and the connecting blocks are slidably connected to the corresponding inner wall of the sliding groove.

[0007] Among them, the inner walls of the four slide grooves are fixedly connected with guide slide rods, the guide slide rods penetrate the top ends of the corresponding connecting blocks, and the connecting blocks are slidably connected to the side walls of the guide slide rods.

[0008] Wherein, the bottom of the extrusion ring is provided with an arc surface, and the side wall of the arc surface is fixedly connected with the arc surface.

[0009] Wherein, a plurality of spherical rolling bodies are rotatably connected to the inner wall of the rectangular ring, and the plurality of spherical rolling bodies are slidably connected to the side wall of the rectangular rod.

[0010] The beneficial effects of the utility model are as follows: different upper and lower forces are applied to the compressed gas tank by the extrusion ring and the hook, so that the hook and the extrusion ring can clamp the compressed gas tank, and the extrusion ring squeezes and limits the compressed gas tank, thereby preventing the compressed gas tank from shaking due to the influence of the hook, improving the stability of the compressed gas tank during lifting, and being beneficial to maintaining the stability of the stored gas inside the compressed gas tank and the accuracy of placing it at the desired position.

[0011] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model in a top view;

[0014] Figure 3 for Figure 1 A schematic diagram of the enlarged structure of the middle part A;

[0015] Figure 4 for Figure 2 Schematic diagram of the enlarged structure of part B in the middle.

[0016] In the figure: 1, wire rigging; 11, hook; 2, rectangular rod; 21, lifting drive screw; 211, motor; 22, slide groove; 221, guide slide rod; 3, rectangular ring; 31, extrusion ring; 311, arc surface; 312, anti-slip pad; 32, L-shaped connecting rod; 33, threaded pipe; 34, connecting block; 35, spherical rolling body. DETAILED DESCRIPTION

[0017] See also Figure 1-Figure 4The utility model provides the following technical solutions: including a wire rigging 1 and a hook 11, a rectangular rod 2 is fixedly connected between the wire rigging 1 and the hook 11, a rectangular ring 3 is slidably connected to the side wall of the rectangular rod 2, an extrusion ring 31 is arranged at the bottom of the rectangular ring 3, four L-shaped connecting rods 32 for supporting the extrusion ring 31 are fixedly connected to the side wall of the rectangular ring 3, the four L-shaped connecting rods 32 are all fixedly connected to the top of the extrusion ring 31, the extrusion ring 31 does not contact the rectangular rod 2 and the hook 11, the inner wall of the rectangular rod 2 is rotatably connected to the lifting drive screw 21, four sliding grooves 22 are opened on the side wall of the rectangular rod 2, a threaded tube 33 is arranged in the rectangular ring 3, the threaded tube 33 is threadedly connected to the side wall of the lifting drive screw 21, and a motor 211 corresponding to the lifting drive screw 21 is installed in the rectangular rod 2.

[0018] In this embodiment: the steel wire sling 1 supports each component of the device, one end of the steel wire sling 1 is connected to the lifting equipment, the steel wire sling 1 supports the hook 11 through the rectangular rod 2, and the compressed gas tank is connected by the hook 11, the rectangular rod 2 guides and limits the sliding of the rectangular ring 3, so that the rectangular ring 3 can maintain a stable sliding posture when sliding up and down, avoiding the rectangular ring 3 from tilting, deflecting and rotating, avoiding the extrusion ring 31 and the compressed gas tank from sliding and causing wear and damage, and the rectangular ring 3 supports four L-shaped connecting rods 32. The four L-shaped connecting rods 32 support the extrusion ring 31, and the extrusion ring 31 surrounds the center of the device. When the rectangular ring 3 slides up and down, the four L-shaped connecting rods 32 can drive the extrusion ring 31 to slide up and down, so that the extrusion ring 31 can exceed the height of the hook 11 or be lower than the bottom of the hook 11. The rectangular rod 2 drives the threaded tube 33 through the lifting drive screw 21. The output end of the motor 211 drives the lifting drive screw 21 to rotate. The lifting drive screw 21 uses the relationship of threaded connection with the threaded tube 33 to enable the threaded tube 33 to drive The rectangular ring 3 is adjusted in the up and down direction, and the extrusion ring 31 is controlled to lift upward so that the extrusion ring 31 will not block the periphery of the hook 11, which is convenient for the staff to control the hook 11. When the hook 11 is connected to the compressed gas tank, the lifting drive screw 21 is driven to rotate by the control motor 211, and the lifting drive screw 21 drives the threaded tube 33 to slide downward, and the threaded tube 33 drives the rectangular ring 3 to slide downward. The rectangular ring 3 drives the extrusion ring 31 to slide downward through four L-shaped connecting rods 32. At this time, the extrusion ring 31 contacts the top of the compressed gas tank, and the extrusion ring 31 is pressed downward. The pressing ring 31 and the hook 11 apply different upper and lower forces to the compressed gas tank, so that the hook 11 and the squeezing ring 31 can clamp the compressed gas tank. The squeezing ring 31 and the hook 11 form a clamp connected to the compressed gas tank. At this time, the wire sling 1 drives the compressed gas pipe to lift and transport through various components of the device. The squeezing ring 31 squeezes and limits the compressed gas tank, thereby preventing the compressed gas tank from shaking due to the influence of the hook 11, improving the stability of the compressed gas tank during lifting, and is beneficial to maintaining the stability of the stored gas inside the compressed gas tank and the accuracy of placing it in the required position.

[0019] Four connecting blocks 34 are fixedly connected to the inner wall of the rectangular ring 3, and the four connecting blocks 34 are all fixedly connected to the side walls of the threaded tube 33, and the connecting blocks 34 are slidably connected to the inner walls of the corresponding slide grooves 22; the rectangular ring 3 is connected to the threaded tube 33 through the four connecting blocks 34, so that when the lifting drive screw 21 adjusts the upper and lower positions of the threaded tube 33, the threaded tube 33 can drive the rectangular ring 3 to adjust its position through the four connecting blocks 34, and the slide grooves 22 provide sliding tracks for the connecting blocks 34 to prevent the rectangular ring 3 from driving the connecting blocks 34 to rotate, thereby improving the stability of operation.

[0020] The inner walls of the four slide grooves 22 are fixedly connected with guide slide rods 221, which pass through the top of the corresponding connecting block 34, and the connecting block 34 is slidably connected to the side wall of the guide slide rod 221; the guide slide rod 221 guides and limits the connecting block 34 for sliding, so as to prevent the connecting block 34 from detaching from the slide groove 22, and when the connecting block 34 slides up and down, the connecting block 34 will not be tilted or offset, so as to further improve the stability of operation.

[0021] An arc surface 311 is provided at the bottom of the extrusion ring 31, and the side wall of the arc surface 311 is fixedly connected with the arc surface 311; the extrusion ring 31 can use the arc surface 311 to correspond to the arc portion of the top of the compressed gas tank, thereby improving the fit between the extrusion ring 31 and the compressed gas tank. The extrusion ring 31 uses the anti-slip pad 312 to increase the stability of the contact with the compressed gas tank, so that the extrusion ring 31 can limit the compressed gas tank more stably and prevent the compressed gas tank from swinging.

[0022] The inner wall of the rectangular ring 3 is rotatably connected to a plurality of spherical rolling bodies 35, and the plurality of spherical rolling bodies 35 are slidably connected to the side walls of the rectangular rod 2; when the rectangular ring 3 slides up and down, the rectangular ring 3 contacts the side walls of the rectangular rod 2 through the plurality of spherical rolling bodies 35, thereby reducing the sliding friction and friction loss between the rectangular ring 3 and the rectangular rod 2, thereby facilitating the upper and lower height position adjustment of the rectangular ring 3.

[0023] The working principle and use process of the utility model are as follows: when the compressed gas tank is hoisted, the extrusion ring 31 is controlled to slide upward so that the extrusion ring 31 will not block the periphery of the hook 11, which is convenient for the staff to control the hook 11. After the hook 11 is connected with the compressed gas tank, the motor 211 is controlled to drive the lifting drive screw 21 to rotate, and the lifting drive screw 21 drives the threaded tube 33 to slide downward, and the threaded tube 33 drives the four connecting blocks 34 to slide downward. The four connecting blocks 34 simultaneously drive the rectangular ring 3 to slide downward, and the rectangular ring 3 drives the extrusion ring 31 to slide downward through the four L-shaped connecting rods 32. The extrusion ring 31 contacts and squeezes the top of the compressed gas tank through the arc surface 311 and the anti-slip pad 312. At this time, the steel wire rigging 1 drives the compressed gas pipe to be lifted and transported through the various components of the device, and the extrusion ring 31 squeezes and limits the compressed gas tank, thereby preventing the compressed gas tank from being affected by the hook 11 and shaking, improving the stability of the compressed gas tank during lifting, and is conducive to maintaining the stability of the stored gas inside the compressed gas tank and the accuracy of placing it in the required position.

Claims

1. A lifting fixture for a compressed gas tank, comprising a wire sling (1) and a hook (11), characterized in that: A rectangular rod (2) is fixedly connected between the wire rigging (1) and the hook (11); a rectangular ring (3) is slidably connected to the side wall of the rectangular rod (2); an extrusion ring (31) is arranged at the bottom of the rectangular ring (3); four L-shaped connecting rods (32) are fixedly connected to the side wall of the rectangular ring (3) for supporting the extrusion ring (31); the four L-shaped connecting rods (32) are fixedly connected to the top of the extrusion ring (31); the extrusion ring (31) does not contact the rectangular rod (2) and the hook (11); a lifting drive screw (21) is rotatably connected to the inner wall of the rectangular rod (2); four sliding grooves (22) are provided on the side wall of the rectangular rod (2); a threaded tube (33) is arranged in the rectangular ring (3); the threaded tube (33) is threadedly connected to the side wall of the lifting drive screw (21); and a motor (211) corresponding to the lifting drive screw (21) is installed in the rectangular rod (2).

2. A lifting fixture for a compressed gas tank according to claim 1, characterized in that: Four connection blocks (34) are fixedly connected to the inner wall of the rectangular ring (3), and the four connection blocks (34) are all fixedly connected to the side wall of the threaded tube (33). The connection blocks (34) are slidably connected to the inner wall of the corresponding sliding groove (22).

3. A lifting fixture for a compressed gas tank according to claim 2, characterized in that: The inner walls of the four slide grooves (22) are all fixedly connected with guide slide bars (221), the guide slide bars (221) penetrate the top ends of the corresponding connection blocks (34), and the connection blocks (34) are slidably connected to the side walls of the guide slide bars (221).

4. The lifting fixture for a compressed gas tank according to claim 1, characterized in that: The bottom of the extrusion ring (31) is provided with an arc-shaped surface (311), and the side wall of the arc-shaped surface (311) is fixedly connected with the arc-shaped surface (311).

5. The lifting fixture for a compressed gas tank according to claim 1, characterized in that: The inner wall of the rectangular ring (3) is rotatably connected to a plurality of spherical rolling bodies (35), and the plurality of spherical rolling bodies (35) are slidably connected to the side wall of the rectangular rod (2).

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