Prefabricated box culvert section lifting appliance

Abstract

The utility model discloses a prefabricated box culvert section lifting appliance, which relates to the technical field of lifting tools, and comprises a limiting steel frame, two movable blocks are sleeved on the surface of the limiting steel frame, and the lower surface of each movable block is fixedly connected with a U-shaped channel steel support frame; two limiting guide grooves which are symmetrical in position are formed in the limiting steel frame, and the inner walls of the limiting guide grooves are rotationally connected with adjusting screw rods. By arranging the limiting steel frame and the U-shaped channel steel supporting frame, the U-shaped channel steel supporting frame can be inserted into the prefabricated box culvert, so that two-point supporting is carried out on the prefabricated box culvert, the stability of the prefabricated box culvert in the hoisting process is improved, compared with traditional box culvert section hoisting construction, two-point supporting is adopted for hoisting, and the hoisting efficiency is improved. The arrangement of hanging rings in the prefabrication process is reduced, the stress on the surface of the prefabricated part is uniform during hoisting, the hoisting stability is improved, the occurrence of hoisting construction safety accidents is reduced, and meanwhile, the hoisting construction speed of the box culvert section is favorably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoisting tool technical field especially relates to a prefabricated box culvert joint hoist. BACKGROUND

[0002] The prefabricated box culvert is a kind of box-type pipe culvert that is prefabricated in factory by high-strength reinforced concrete, and is hoisted and connected at construction site.The box culvert can be widely used in power tunnel, urban comprehensive pipe gallery, commonly known as prefabricated concrete square pipe culvert.

[0003] At present, box culvert joint hoisting construction is mostly carried out by embedding lifting ring, which is complicated and slow in progress, and has high safety hazard.In order to solve the problems of progress, quality and safety of box culvert joint hoisting construction in the prior art, the utility model provides a prefabricated box culvert joint hoist. UTILITY MODEL CONTENTS

[0004] The utility model discloses a prefabricated box culvert joint hoist, which aims to solve the poor stability of the hoisting tool in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A prefabricated box culvert joint hoist, comprising a limiting steel frame, two movable blocks are installed on the surface of the limiting steel frame, and a channel steel support frame in the shape of a Chinese character is fixedly connected to the lower surface of the movable block.

[0007] Two limiting guide grooves that are mutually symmetrical are formed in the inside of the limiting steel frame, an adjusting screw is rotatably connected to the inner wall of the limiting guide groove, an adjusting block is threadedly connected to the surface of the adjusting screw, the upper surface of the adjusting block extends to the outside of the limiting steel frame, and the upper surface of the adjusting block is fixedly connected to the inner top wall of the movable block.

[0008] A positioning installation frame is fixedly connected to the lower surface of the limiting steel frame, a connecting channel steel is inserted and installed in the inside of the positioning installation frame, and the connecting channel steel is used to combine and splice the two limiting steel frames.

[0009] According to actual hoisting work surface needs, various raw materials for making box culvert joint hoist are purchased, which is composed of two fulcrums, lifting rings and beams for connecting and fixing the two fulcrums.In actual production process, according to stress requirements, the length of fulcrum, the distance between the two fulcrums and the fixed position of the beam are reasonably taken to prevent safety accidents caused by uneven stress, and the culvert joint is supported by the fulcrum during hoisting, and the hoisting construction is completed by the common stress of the beam and the lifting ring.

[0010] In a preferred scheme, a plurality of limiting bolt holes are formed in the surface of the connecting channel steel, limiting screws are inserted into the inner walls of the limiting bolt holes, and the surfaces of the limiting screws are threadedly connected with limiting nuts.

[0011] In a preferred scheme, the limiting screws are arranged on the left and right sides of the positioning mounting frame, and the limiting screws are used to limit the position of the positioning mounting frame.

[0012] By arranging the limiting screws, four limiting screws are inserted into the limiting bolt holes in the surface of the connecting channel steel, two limiting screws are used to limit the two sides of the positioning mounting frame, the spacing between the two limiting steel frames is limited, and the two groups of channel steel support frames can be combined and spliced.

[0013] In a preferred scheme, rubber anti-skid blocks are fixedly connected to the surface of the channel steel support frame, and the rubber anti-skid blocks are arranged on the inner side surface of the channel steel support frame.

[0014] In a preferred scheme, a strip-shaped limiting hole is formed in the upper surface of the limiting steel frame, the strip-shaped limiting hole is arranged in a position corresponding to the adjusting block, and the adjusting block is in sliding connection with the inner wall of the strip-shaped limiting hole.

[0015] By arranging the strip-shaped limiting hole, the strip-shaped limiting hole can be used to guide and limit the adjusting block.

[0016] In a preferred scheme, a lifting rope fixing ring is fixedly connected to the upper surface of the limiting steel frame, and a reinforced lifting ring is fixedly connected to the upper surface of the channel steel support frame.

[0017] By arranging the lifting rope fixing ring and the reinforced lifting ring, the lifting rope fixing ring and the reinforced lifting ring can be used to multi-point position the lifting appliance, thereby reinforcing the lifting appliance.

[0018] In a preferred scheme, one end of the adjusting screw extends to the outside of the limiting guide groove, and an adjusting nut is fixedly connected to the one end.

[0019] As known from the above, the prefabricated box culvert joint lifting appliance has the following technical effects.

[0020] Firstly, by arranging the limiting steel frame and the channel steel support frame in the shape of a Chinese character, the channel steel support frame can be inserted into the interior of the prefabricated box culvert, thereby supporting the prefabricated box culvert at two points, improving the stability of the prefabricated box culvert during hoisting, compared with the traditional box culvert joint hoisting construction, the double-point support is adopted for hoisting, the setting of the lifting ring in the prefabrication process is reduced, the surface of the prefabricated part is uniformly stressed during hoisting, the stability of hoisting is improved, the occurrence of hoisting construction safety accidents is reduced, and the box culvert joint hoisting construction speed is improved.

[0021] Secondly, by installing adjusting screws inside the channel steel support frame, the distance between the two channel steel support frames can be adjusted, making it suitable for limiting and supporting box culvert sections of different widths, thus improving the adjustability and applicability of the lifting equipment. By setting a positioning and mounting frame at the bottom of the limiting steel frame, a connecting channel steel can be inserted into the positioning and mounting frame at the bottom of the two limiting steel frames, and four limiting screws are inserted into the limiting bolt holes on the surface of the connecting channel steel, so that the two limiting screws limit the two sides of the positioning and mounting frame, thereby limiting the distance between the two limiting steel frames. The two sets of channel steel support frames can be combined and spliced, which is convenient for lifting and supporting long precast components. Attached Figure Description

[0022] Figure 1 This is a front view structural diagram of a precast box culvert section lifting device proposed in this utility model.

[0023] Figure 2 This is a rear view structural diagram of a precast box culvert section lifting device proposed in this utility model.

[0024] Figure 3 This is a schematic diagram of the front section of the limiting steel frame structure of the precast box culvert section lifting device proposed in this utility model.

[0025] Figure 4 This is a schematic diagram of the first-view structure of the prefabricated box culvert section lifting device proposed in this utility model after the two limiting steel frames are combined.

[0026] Figure 5 This is a schematic diagram of the second perspective structure of a precast box culvert section lifting device proposed in this utility model after the two limiting steel frames are combined.

[0027] In the attached diagram: 1. Limiting steel frame; 2. Movable block; 3. Channel steel support frame; 4. Limiting guide groove; 5. Adjusting screw; 6. Adjusting block; 7. Positioning and mounting frame; 8. Connecting channel steel; 9. Limiting bolt hole; 10. Limiting screw; 11. Limiting nut; 12. Rubber anti-slip block; 13. Strip-shaped limiting hole; 14. Lifting rope fixing ring; 15. Reinforcing lifting ring; 16. Adjusting nut. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Reference Figure 1 and Figure 2The utility model provides a kind of precast box culvert section hanger, including limiting steel frame 1, two movable blocks 2 are equipped on the surface of limiting steel frame 1, and the lower surface of movable block 2 is fixedly connected with the groove steel support frame 3 of the shape of.

[0030] Need to be explained, the upper surface of limiting steel frame 1 is fixedly connected with the rope fixing ring 14, and the upper surface of groove steel support frame 3 is fixedly connected with the reinforcing lifting ring 15.

[0031] The surface of groove steel support frame 3 is fixedly connected with rubber antiskid block 12, and rubber antiskid block 12 is arranged on the inner side surface of groove steel support frame 3.

[0032] By being provided with rubber antiskid block 12 on the surface of groove steel support frame 3, the antiskid effect between groove steel support frame 3 and precast piece can be improved.

[0033] Refer to Figure 3 , Figure 4 And Figure 5 In a preferred embodiment, two positionally symmetrical limiting guide grooves 4 are formed in the inside of limiting steel frame 1, the inner wall of limiting guide groove 4 is rotatably connected with adjusting screw 5, one end of adjusting screw 5 extends to the outside of limiting guide groove 4, and adjusting nut 16 is fixedly connected with adjusting screw 5.

[0034] Need to be further explained, the surface of adjusting screw 5 is threadedly connected with adjusting block 6, the upper surface of adjusting block 6 extends to the outside of limiting steel frame 1, and the upper surface of adjusting block 6 is fixedly connected with the inner top wall of movable block 2.

[0035] It is worth mentioning that by being provided with adjusting screw 5 in the inside of groove steel support frame 3, adjusting screw 5 can be driven by rotating adjusting nut 16, and then adjusting block 6 is moved in limiting guide groove 4, and the distance between two groove steel support frames 3 is adjusted by rotating adjusting screw 5, so that it is suitable for limiting and supporting box culvert section of different widths, and the adjustability and application range of the hanger are improved.

[0036] Need to be explained, the upper surface of limiting steel frame 1 is provided with strip-shaped limiting hole 13, the position of strip-shaped limiting hole 13 corresponds to adjusting block 6, and adjusting block 6 is slidably connected with the inner wall of strip-shaped limiting hole 13.

[0037] The lower surface of limiting steel frame 1 is fixedly connected with positioning mounting frame 7, and the inside of positioning mounting frame 7 is inserted and mounted with link groove steel 8, and link groove steel 8 is used for combining and splicing two limiting steel frames 1.

[0038] In a preferred embodiment, a plurality of limiting bolt holes 9 are formed in the surface of link groove steel 8, limiting screw 10 is inserted and mounted in the inner wall of limiting bolt hole 9, and limiting nut 11 is threadedly connected with the surface of limiting screw 10.

[0039] It needs to be further explained that the limiting screw 10 is distributed on the left and right sides of the positioning mounting frame 7, and the limiting screw 10 is used to limit the position of the positioning mounting frame 7.

[0040] It is worth mentioning that by setting the positioning mounting frame 7 at the bottom of the limiting steel frame 1, when the longer prefabricated part needs to be hoisted, one connecting channel steel 8 can be inserted into the positioning mounting frame 7 at the bottom of the two limiting steel frames 1, and four limiting screws 10 are inserted into the limiting bolt holes 9 on the surface of the connecting channel steel 8 respectively, so that the two limiting screws 10 limit the two sides of the positioning mounting frame 7 respectively, thereby limiting the spacing of the two limiting steel frames 1, and the two groups of channel steel support frames 3 can be combined and spliced, facilitating the hoisting and supporting of the prefabricated part with longer length.

[0041] Working principle: when hoisting the box culvert section of the prefabricated part, first insert the two channel steel support frames 3 into the inside of the prefabricated box culvert, so as to use the U-shaped structure of the channel steel support frame 3 to support the prefabricated box culvert at two points, improve the stability of the prefabricated box culvert during hoisting, compared with the traditional box culvert section hoisting construction, the double-point support is used for hoisting, which reduces the setting of the lifting ring in the prefabrication process, makes the surface of the prefabricated part force evenly during hoisting, improves the stability of hoisting, reduces the occurrence of hoisting construction safety accidents, and is also conducive to improving the box culvert section hoisting construction speed.

[0042] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. The replacement can be a partial structure, device, method step replacement, or a complete technical solution. According to the technical scheme and the utility model concept of the present application, equivalent replacement or change should be covered within the protection scope of the present application.

Claims

1. A precast box culvert section lifting device, comprising a limiting steel frame (1), characterized in that, Two movable blocks (2) are sleeved and installed on the surface of the restricting steel frame (1), and a channel steel support frame (3) in a U-shape is fixedly connected to the lower surface of the movable block (2); Two symmetrically-positioned restricting guide grooves (4) are formed inside the restricting steel frame (1). An adjusting screw rod (5) is rotatably connected to the inner wall of the restricting guide groove (4). An adjusting block (6) is threadedly connected to the surface of the adjusting screw rod (5). The upper surface of the adjusting block (6) extends to the outside of the restricting steel frame (1), and the upper surface of the adjusting block (6) is fixedly connected to the inner top wall of the movable block (2); A positioning installation frame (7) is fixedly connected to the lower surface of the restricting steel frame (1). A connecting channel steel (8) is inserted and installed inside the positioning installation frame (7), and the connecting channel steel (8) is used for combining and splicing two restricting steel frames (1).

2. The precast box culvert section lifting device according to claim 1, characterized in that, A number of limiting bolt holes (9) are formed on the surface of the connecting channel steel (8). A limiting screw rod (10) is inserted and installed inside the inner wall of the limiting bolt hole (9). A limiting nut (11) is threadedly connected to the surface of the limiting screw rod (10).

3. The precast box culvert section lifting device according to claim 2, characterized in that, The limiting screw rods (10) are distributed on the left and right sides of the positioning installation frame (7), and the limiting screw rods (10) are used for limiting the position of the positioning installation frame (7).

4. The precast box culvert section lifting device according to claim 1, characterized in that, A rubber anti-slip block (12) is fixedly connected to the surface of the channel steel support frame (3), and the rubber anti-slip block (12) is arranged on the inner side surface of the channel steel support frame (3).

5. A precast box culvert section lifting device according to claim 1, characterized in that, A strip-shaped limiting hole (13) is formed on the upper surface of the restricting steel frame (1). The position of the strip-shaped limiting hole (13) corresponds to that of the adjusting block (6), and the adjusting block (6) is slidably connected to the inner wall of the strip-shaped limiting hole (13).

6. A precast box culvert section lifting device according to claim 1, characterized in that, A lifting rope fixing ring (14) is fixedly connected to the upper surface of the restricting steel frame (1), and a reinforcing lifting ring (15) is fixedly connected to the upper surface of the channel steel support frame (3).

7. A precast box culvert section lifting device according to claim 1, characterized in that, One end of the adjusting screw rod (5) extends to the outside of the restricting guide groove (4) and is fixedly connected to an adjusting nut (16).

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