Lifting appliance for natural gas pipeline construction

Abstract

The utility model relates to the field of pipeline lifting equipment, in particular to a lifting appliance for natural gas pipeline construction, which comprises a load-bearing cross beam, upper lifting blocks and lower lifting blocks, the upper lifting blocks are fixedly mounted on the upper surfaces of two ends of the load-bearing cross beam, and the lower lifting blocks are fixedly mounted on the lower surfaces of two ends of the load-bearing cross beam. And moving blocks are arranged in the two ends of the bearing cross beam, supporting frames are movably installed on the side surfaces of the moving blocks, lifting chains are arranged on the lower lifting blocks, moving grooves are formed in the two ends of the bearing cross beam, and a rotating motor is fixedly installed on the surface of one end of the bearing cross beam. According to the lifting appliance for natural gas pipeline construction, the lifting chain of the lifting appliance for natural gas pipeline construction is more convenient and simpler to store, the lifting chain is convenient to check and maintain, and casualties of engineering personnel caused by damage of the lifting chain are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline hoisting equipment field, especially in pipeline construction for natural gas hoist. BACKGROUND

[0002] In some large cross-regional pipeline engineering, the length, diameter and weight of the pipeline are increasing, and stronger and more reliable hoists are needed for hoisting operation; natural gas pipeline is long, so it is moved by lifting during installation, and a hoist is needed during lifting, the hoist is mainly lifted by the chain near the two ends of the pipeline during use, but the unused part of the chain is wound up for easy extension, which is not convenient for maintaining the chain. UTILITY MODEL CONTENT

[0003] The main purpose of the utility model is to provide a natural gas pipeline construction hoist, which can effectively solve the problems in the background art.

[0004] To achieve the above purpose, the technical scheme adopted by the utility model is:

[0005] A natural gas pipeline construction hoist, comprising a load-bearing beam, an upper lifting block and a lower lifting block, the upper surface of the two ends of the load-bearing beam is fixedly provided with an upper lifting block, the lower surface of the two ends of the load-bearing beam is fixedly provided with a lower lifting block, the inside of the two ends of the load-bearing beam is provided with a moving block, the side surface of the moving block is movably provided with a lifting frame, and the lower lifting block is provided with a chain.

[0006] Further, the inside of the two ends of the load-bearing beam is provided with a moving groove, one end surface of the load-bearing beam is fixedly provided with a rotating motor, the output end of the rotating motor is fixedly provided with a double-headed screw rod, the double-headed screw rod penetrates the moving groove, and the front surface and the rear surface of the load-bearing beam and located above one end of the moving groove are fixedly provided with a rack.

[0007] Further, the lifting frame comprises a U-shaped rod, a gear, a movable rod, a torsional spring and a limiting block, the outer surface of the two sides of the upper end of the U-shaped rod is fixedly provided with a gear, the inner surface of the two sides of the upper end of the U-shaped rod is fixedly provided with a movable rod, and the surface of one end of the movable rod is fixedly provided with a limiting block.

[0008] Further, the inside of the moving block is provided with a threaded hole, the inside of the two ends of the moving block is provided with a rod groove, one end of the movable rod is embedded in the rod groove, and the double-headed screw rod surface in the moving groove is sleeved with the moving block.

[0009] Further, one end of the torsional spring is fixed with the limiting block, and the other end of the torsional spring is fixed with the inner surface of one end of the rod groove.

[0010] Further, the bottom end of the lifting frame is below the lower hanging block.

[0011] Compared with the prior art, the natural gas pipeline construction lifting appliance has the following beneficial effects:

[0012] In the natural gas pipeline construction lifting appliance, the storage of the lifting chain is more convenient and simple, the lifting chain can be conveniently viewed and maintained, and the damage of the lifting chain to the engineering personnel is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a whole structure diagram of the natural gas pipeline construction lifting appliance of the utility model;

[0014] Figure 2 is a local dismounting schematic view of the natural gas pipeline construction lifting appliance of the utility model;

[0015] Figure 3 is a lifting frame structure diagram of the natural gas pipeline construction lifting appliance of the utility model;

[0016] Figure 4 is a moving block local section view of the natural gas pipeline construction lifting appliance of the utility model.

[0017] In the figure: 1, bearing cross beam; 101, moving groove; 102, rotating motor; 103, double-end screw rod; 104, rack; 2, upper hanging block; 3, lower hanging block; 4, lifting chain; 5, lifting frame; 501, U-shaped rod; 502, gear; 503, movable rod; 504, limiting block; 505, torsional spring; 6, moving block; 601, screw hole; 602, rod groove. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0019] As Figures 1-4 indicated in one natural gas pipeline construction lifting appliance, including bearing cross beam 1, upper hanging block 2 and lower hanging block 3, the upper surface of the both ends of bearing cross beam 1 is fixedly installed with upper hanging block 2, the lower surface of the both ends of bearing cross beam 1 is fixedly installed with lower hanging block 3, the both ends of bearing cross beam 1 are internally provided with moving block 6, the side surface of moving block 6 is movably installed with lifting frame 5, lower hanging block 3 is provided with lifting chain 4, wherein bearing cross beam 1 is provided with specified length according to needs.

[0020] The both ends of the load bearing crossbeam 1 are internally provided with moving grooves 101, and the surface of one end of the load bearing crossbeam 1 is fixedly provided with a rotating motor 102, the output end of the rotating motor 102 is fixedly provided with a double-head screw rod 103, the double-head screw rod 103 penetrates through the moving grooves 101, and the front surface and the rear surface of the load bearing crossbeam 1 and located above one end of the moving grooves 101 are fixedly provided with a rack 104, and the rotating motor 102 can drive the double-head screw rod 103 to rotate; the lifting frame 5 comprises a U-shaped rod 501, a gear 502, a movable rod 503, a torsional spring 505 and a limiting block 504, the both sides of the upper end of the U-shaped rod 501 are fixedly provided with the gears 502 on the outer surface, the both sides of the upper end of the U-shaped rod 501 are fixedly provided with the movable rods 503 on the inner surface, and the surface of one end of the movable rod 503 is fixedly provided with the limiting block 504; the inside of the moving block 6 is internally provided with a screw hole 601, the both ends of the moving block 6 are internally provided with rod grooves 602, one end of the movable rod 503 is embedded in the rod groove 602, and the moving block 6 is sleeved on the surface of the double-head screw rod 103 inside the moving groove 101, and the moving block 6 can drive the lifting frame 5 to move when moving; one end of the torsional spring 505 is fixed with the limiting block 504, and the other end of the torsional spring 505 is fixed with the inner surface of one end of the rod groove 602; the bottom end of the lifting frame 5 is located below the lower hanging block 3.

[0021] Principle: when not using the lifting chain 4, the rotating motor 102 of the load bearing crossbeam 1 is started, the rotating motor 102 controls the double-head screw rod 103 to rotate, at this time, the moving block 6 moves to the middle of the load bearing crossbeam 1, and the moving block 6 drives the lifting frame 5 to move when moving, and the lifting frame 5 can continuously fold the lifting chain 4 to the lower part of the middle of the load bearing crossbeam 1 when moving, and the torsional spring 505 can prevent the lifting frame 5 from being pushed and turned over by the lifting chain 4 during folding the lifting chain 4, when the moving block 6 moves a certain distance, the gear 502 of the lifting frame 5 is engaged with the rack 104 of the load bearing crossbeam 1, and the lifting frame 5 is turned over under the cooperation of the gear 502 and the rack 104 with the continuous movement of the moving block 6, until the lifting frame 5 clamps the lifting chain 4 on the lower surface of the load bearing crossbeam 1, so that the storage of the lifting chain 4 is completed, and the lifting chain 4 is convenient to check and maintain.

[0022] The basic principle and main features of the utility model and the advantages of the utility model are shown and described. The skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A lifting tool for natural gas pipeline construction, characterized in that: The load-bearing crossbeam (1), the upper lifting block (2) and the lower lifting block (3) are included. The upper lifting block (2) is fixedly installed on the upper surface of both ends of the load-bearing crossbeam (1), and the lower lifting block (3) is fixedly installed on the lower surface of both ends of the load-bearing crossbeam (1). The load-bearing crossbeam (1) has a movable block (6) inside both ends. The side surface of the movable block (6) is movably installed with a lifting frame (5). The lower lifting block (3) is provided with a lifting chain (4). The lifting frame (5) includes a U-shaped rod (501), a gear (502), a movable rod (503), a torsion spring (505) and a limiting block (504). The gear (502) is fixedly installed on the outer surface of both sides of the upper end of the U-shaped rod (501). The movable rod (503) is fixedly installed on the inner surface of both sides of the upper end of the U-shaped rod (501). The limiting block (504) is fixedly installed on one end surface of the movable rod (503).

2. The lifting tool for natural gas pipeline construction according to claim 1, characterized in that: The load-bearing crossbeam (1) has movable slots (101) inside both ends. A rotating motor (102) is fixedly installed on one end surface of the load-bearing crossbeam (1). A double-headed screw (103) is fixedly installed at the output end of the rotating motor (102). The double-headed screw (103) passes through the movable slot (101). A rack (104) is fixedly installed on the front and rear surfaces of the load-bearing crossbeam (1) and above one end of the movable slot (101).

3. A lifting tool for natural gas pipeline construction according to claim 2, characterized in that: The movable block (6) has a screw hole (601) inside, and rod grooves (602) are opened inside both ends of the movable block (6). One end of the movable rod (503) is embedded in the rod groove (602), and the movable block (6) is sleeved on the surface of the double-headed screw (103) inside the movable groove (101).

4. A lifting tool for natural gas pipeline construction according to claim 3, characterized in that: One end of the torsion spring (505) is fixed to the limiting block (504), and the other end of the torsion spring (505) is fixed to the inner surface of the rod groove (602).

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