A special lifting tool for H-shaped steel

Abstract

The present invention relates to a special lifting tool for H-shaped steel, which includes two lifting tool bodies and an embedded transverse plate. The two lifting tool bodies are fixedly connected together by welding. Fixing holes are provided on the lifting tool bodies. Transverse plate embedded grooves are provided on the lifting tool bodies. The embedded transverse plate has an embedded transverse plate body and a middle through-hole is provided on the embedded transverse plate body. The embedded transverse plate body is fixedly connected in the transverse plate embedded grooves of the two lifting tool bodies by welding. Two first fixing grooves are provided on the lifting tool bodies. First electric telescopic rods are fixedly arranged in the first fixing grooves. All the first electric telescopic rods on the two lifting tool bodies are fixedly connected to a first pressing plate. A layer of first pressing plate sponge rubber pad is fixedly provided on the first pressing plate.

Description

Technical Field

[0001] The present invention relates to the field of lifting tools, and particularly to a special lifting tool for H-shaped steel. Background Art

[0002] Steel structure engineering is a structure mainly made of steel, mainly composed of steel beams, steel columns, steel trusses, etc. made of H-shaped steel and steel plates. Welds, bolts or rivets are usually used to connect between each component or part. H-shaped steel is one of the main building structure types. Because of its light self-weight and simple construction, it is widely used in large factories, stadiums, super high-rise buildings and other fields. During the construction of steel structures, the hoisting of H-shaped steel is inevitable. Generally, wire ropes are used for bundling and hoisting, resulting in poor hoisting stability and low safety, and it is easy to cause wear during hoisting, resulting in economic losses. In addition, the existing H-shaped steel lifting tools cannot adjust and fix H-shaped steel of different sizes, so the applicable range is small. Therefore, how to make the special lifting tool for H-shaped steel have strong stability, high safety, anti-wear performance and wide applicable range is a problem to be solved by those skilled in the art of the present technology. Summary of the Invention

[0003] In order to solve the problems of the prior art, the present invention provides a special lifting tool for H-shaped steel with strong stability, high safety, anti-wear performance and wide applicable range.

[0004] To solve the above technical problems, the present invention is realized through the following technical solutions: A special lifting tool for H-shaped steel includes two lifting tool bodies and an embedded cross plate. The two lifting tool bodies are fixedly connected together by welding. Fixing holes are provided on the lifting tool bodies. Cross plate embedded grooves are provided on the lifting tool bodies. The embedded cross plate has an embedded cross plate body and a middle through hole is provided on the embedded cross plate body. The embedded cross plate body is fixedly connected in the cross plate embedded grooves of the two lifting tool bodies by welding. Two first fixing grooves are provided on the lifting tool bodies. First electric telescopic rods are fixedly arranged in the first fixing grooves. All the first electric telescopic rods on the two lifting tool bodies are fixedly connected to a first pressing plate. A layer of first pressing plate sponge rubber pad is fixedly provided on the first pressing plate.

[0005] The first pressing plate passes through the middle through hole.

[0006] Anti-slip grooves are recessed on the lifting tool bodies, and anti-slip rubber pads are fixedly connected in the anti-slip grooves.

[0007] An inner cavity and a bottom opening are provided on the lifting tool bodies. A second fixing groove is provided inside the lifting tool bodies. A second electric telescopic rod is fixedly connected in the second fixing groove. A second pressing plate is fixedly connected to the second electric telescopic rod. A layer of second pressing plate sponge rubber pad is fixedly provided on the second pressing plate.

[0008] Inside the main body of the sling, there is a third fixing groove, in which a third electric telescopic rod is fixedly connected. A third pressing plate is fixedly connected to the third electric telescopic rod, and a layer of third pressing plate sponge rubber pad is fixedly arranged on the third pressing plate.

[0009] Inside the main body of the sling, there is a fourth fixing groove, in which a fourth electric telescopic rod is fixedly connected. A pushing plate is fixedly connected to the fourth electric telescopic rod. The inside of the pushing plate is hollow and has an opening at the bottom.

[0010] A fifth electric telescopic rod is fixedly connected inside the pushing plate. The fifth electric telescopic rod passes through and is fixed in the fourth pressing plate. The fourth pressing plate is in an L-shaped plate structure, and a layer of fourth pressing plate sponge rubber pad is fixedly arranged on the fourth pressing plate.

[0011] A hoisting method for a special sling for H-shaped steel is as follows:

[0012] Step 1: Fix two such special slings for H-shaped steel on the sling fixing plate by means of fastener connection, and make the two such special slings for H-shaped steel symmetrically arranged. The distance between the two such special slings for H-shaped steel is set to be 0.5 - 0.7 meters, and the distance between the two embedded horizontal plates is set to be 0.8 - 1 meter. The top of the sling fixing plate is fixedly connected to the lifting rope.

[0013] Step 2: Place the bottom surface of the flange plate at the upper part of the H-shaped steel on four anti-slip rubber pads and place the web of the H-shaped steel between the second pressing plates of the two such special slings for H-shaped steel. The thickness of the anti-slip rubber pad is 2 - 4 cm, and the anti-slip rubber pad is replaced once every 1 - 2 months.

[0014] Step 3: Start the first electric telescopic rod by pressing the control switch button of the first electric telescopic rod to make it extend, so that the first pressing plate sponge rubber pad of the first pressing plate tightly presses and fixes on the side surface of the flange plate at the upper part of the H-shaped steel. And start the second electric telescopic rod by pressing the control switch button of the second electric telescopic rod to make it extend, so that the second pressing plate sponge rubber pad of the second pressing plate tightly presses and fixes on the web of the H-shaped steel. The first pressing plate sponge rubber pad and the second pressing plate sponge rubber pad are replaced once every 10 - 15 days.

[0015] Step 4: Start the third electric telescopic rod by pressing the control switch button of the third electric telescopic rod to make it extend, so that the third pressing plate sponge rubber pad of the third pressing plate tightly presses and fixes on the top surface of the flange plate at the lower part of the H-shaped steel. The third pressing plate sponge rubber pad is replaced once every 10 - 15 days.

[0016] Step 5: Start the fifth electric telescopic rod through its control switch button to adjust its extension and retraction, and start the fourth electric telescopic rod through its control switch button to adjust its extension and retraction, so that the fourth pressing plate tightly presses against the side of the flange plate at the lower part of the H-shaped steel and the fourth pressing plate sponge rubber pad of the fourth pressing plate tightly presses and fixes on the bottom surface of the flange plate at the lower part of the H-shaped steel. The fourth pressing plate sponge rubber pad is replaced once every 10 - 15 days;

[0017] Step 6: After determining that the H-shaped steel is fastened, start the crane to lift the lifting rope for hoisting operation;

[0018] Step 7: When the H-shaped steel reaches the hoisting location, start the first electric telescopic rod through its control switch button to make it contract, start the second electric telescopic rod through its control switch button to make it contract, start the third electric telescopic rod through its control switch button to make it contract, start the fourth electric telescopic rod through its control switch button to make it contract, start the fifth electric telescopic rod through its control switch button to make it contract, and then remove the H-shaped steel from this special H-shaped steel lifting tool.

[0019] The beneficial effects of the present invention are as follows:

[0020] The combination setting of the lifting tool main body and the embedded horizontal plate of the present invention enables this special H-shaped steel lifting tool to tightly press and fix multiple parts of the H-shaped steel during hoisting, so that the stability of this special H-shaped steel lifting tool for the H-shaped steel is strong, and thus the safety performance is high. The combination setting of the lifting tool main body and the embedded horizontal plate enables this special H-shaped steel lifting tool to prevent abrasion to the H-shaped steel during hoisting, and enables this special H-shaped steel lifting tool to adjust, tightly press and fix H-shaped steels of different sizes and models during hoisting, so that the applicable range is wide. Description of the Drawings

[0021] Figure 1 is the side view of the present invention.

[0022] Figure 2 is the rear view of the present invention.

[0023] Figure 3 is the cross-sectional view of the present invention.

[0024] Figure 4 is the hoisting schematic diagram of the present invention.

[0025] Figures 1 to 4Chinese: 1. Hoisting tool main body; 1-1. Fixed hole; 1-2. Embedded horizontal plate groove; 1-3. First fixed groove; 1-4. Anti-slip groove; 1-5. Inner cavity; 1-6. Second fixed groove; 1-7. Third fixed groove; 1-8. Fourth fixed groove; 131. First electric telescopic rod; 132. First pressing plate; 133. First pressing plate sponge rubber pad; 141. Anti-slip rubber pad; 161. Second electric telescopic rod; 162. Second pressing plate; 163. Second pressing plate sponge rubber pad; 171. Third electric telescopic rod; 172. Third pressing plate; 173. Third pressing plate sponge rubber pad; 181. Fourth electric telescopic rod; 182. Pushing plate; 183. Fifth electric telescopic rod; 184. Fourth pressing plate; 185. Fourth pressing plate sponge rubber pad; 2. Embedded horizontal plate; 2-1. Embedded horizontal plate main body; 2-2. Intermediate through hole; A. Hoisting tool fixing plate; B. Hoisting rope; C. H-shaped steel; D. Control electric box. Detailed implementation manner

[0026] As Figures 1 to 4 shown, a special hoisting tool for H-shaped steel includes two hoisting tool main bodies 1 and an embedded horizontal plate 2. The two hoisting tool main bodies 1 are fixedly connected together by welding. The hoisting tool main body 1 is provided with a fixed hole 1-1. The hoisting tool main body 1 is provided with an embedded horizontal plate groove 1-2. The embedded horizontal plate 2 is provided with an embedded horizontal plate main body 2-1 and the embedded horizontal plate main body 2-1 is provided with an intermediate through hole 2-2. The embedded horizontal plate main body 2-1 is fixedly connected in the embedded horizontal plate grooves 1-2 of the two hoisting tool main bodies 1 by welding. The hoisting tool main body 1 is provided with two first fixed grooves 1-3. A first electric telescopic rod 131 is fixedly arranged in the first fixed groove 1-3. All the first electric telescopic rods 131 on the two hoisting tool main bodies 1 are fixedly connected to a first pressing plate 132. A layer of first pressing plate sponge rubber pad 133 is fixedly arranged on the first pressing plate 132.

[0027] The first pressing plate 132 passes through the intermediate through hole 2-2.

[0028] The hoisting tool main body 1 is recessed with an anti-slip groove 1-4, and an anti-slip rubber pad 141 is fixedly connected in the anti-slip groove 1-4.

[0029] The hoisting tool main body 1 is provided with an inner cavity 1-5 and a bottom opening. A second fixed groove 1-6 is arranged inside the hoisting tool main body 1. A second electric telescopic rod 161 is fixedly connected in the second fixed groove 1-6. A second pressing plate 162 is fixedly connected to the second electric telescopic rod 161. A layer of second pressing plate sponge rubber pad 163 is fixedly arranged on the second pressing plate 162.

[0030] Inside the sling main body 1, there is a third fixing groove 1-7. A third electric telescopic rod 171 is fixedly connected inside the third fixing groove 1-7. A third pressing plate 172 is fixedly connected to the third electric telescopic rod 171. A layer of third pressing plate sponge rubber pad 173 is fixedly provided on the third pressing plate 72.

[0031] Inside the sling main body 1, there is a fourth fixing groove 1-8. A fourth electric telescopic rod 181 is fixedly connected inside the fourth fixing groove 1-8. A pushing plate 182 is fixedly connected to the fourth electric telescopic rod 181. The inside of the pushing plate 182 is hollow and has an opening at the bottom.

[0032] A fifth electric telescopic rod 183 is fixedly connected inside the pushing plate 182. The fifth electric telescopic rod 183 passes through and is fixed inside a fourth pressing plate 184. The fourth pressing plate 184 is in an L-shaped plate structure. A layer of fourth pressing plate sponge rubber pad 185 is fixedly provided on the fourth pressing plate 184.

[0033] A hoisting method for a special sling for H-shaped steel is as follows:

[0034] Step 1: Fix two such special slings for H-shaped steel on the sling fixing plate A by means of fastener connection, and make the two such special slings for H-shaped steel symmetrically arranged. The distance between the two such special slings for H-shaped steel is set to 0.5 - 0.7 meters, and the distance between the two embedded cross plates 2 is set to 0.8 - 1 meter. Fix the top of the sling fixing plate A to the lifting rope B.

[0035] Step 2: Place the bottom surface of the flange plate on the upper part of the H-shaped steel C on four anti-slip rubber pads 141 and make the web of the H-shaped steel C be arranged between the second pressing plates 162 of the two such special slings for H-shaped steel. The thickness of the anti-slip rubber pads 141 is 2 - 4 cm, and the anti-slip rubber pads 141 are replaced once every 1 - 2 months.

[0036] Step 3: Start the first electric telescopic rod 131 by pressing the control switch button of the first electric telescopic rod 131 to make it extend, so that the first pressing plate sponge rubber pad 133 of the first pressing plate 132 tightly presses and fixes on the side surface of the flange plate on the upper part of the H-shaped steel C. And start the second electric telescopic rod 161 by pressing the control switch button of the second electric telescopic rod 161 to make it extend, so that the second pressing plate sponge rubber pad 163 of the second pressing plate 162 tightly presses and fixes on the web of the H-shaped steel C. The first pressing plate sponge rubber pad 133 and the second pressing plate sponge rubber pad 163 are replaced once every 10 - 15 days.

[0037] Step 4: Start the third electric telescopic rod 171 by pressing its control switch button to make it extend, so that the third pressure plate sponge rubber pad 173 of the third pressure plate 172 presses tightly on the top surface of the lower flange plate of the H-shaped steel C. The third pressure plate sponge rubber pad 173 is replaced every 10 - 15 days;

[0038] Step 5: Start the fifth electric telescopic rod 183 by pressing its control switch button to make it telescopic and adjust, and start the fourth electric telescopic rod 181 by pressing its control switch button to make it telescopic and adjust, so that the fourth pressure plate 184 presses tightly on the side surface of the lower flange plate of the H-shaped steel C and the fourth pressure plate sponge rubber pad 185 of the fourth pressure plate 184 presses tightly on the bottom surface of the lower flange plate of the H-shaped steel C. The fourth pressure plate sponge rubber pad 185 is replaced every 10 - 15 days;

[0039] Step 6: After determining that the H-shaped steel C is fastened, start the crane to lift the lifting rope B for hoisting operation;

[0040] Step 7: When the H-shaped steel C reaches the hoisting location, start the first electric telescopic rod 131 by pressing its control switch button to make it contract, start the second electric telescopic rod 161 by pressing its control switch button to make it contract, start the third electric telescopic rod 171 by pressing its control switch button to make it contract, start the fourth electric telescopic rod 181 by pressing its control switch button to make it contract, start the fifth electric telescopic rod 183 by pressing its control switch button to make it contract, and then remove the H-shaped steel C from this special H-shaped steel lifting tool.

[0041] The first pressing plate 132, the second pressing plate 162, the third pressing plate 172, and the fourth pressing plate 184 all play a role in tightly pressing and fixing. Also, the first pressing plate sponge rubber pad 133, the second pressing plate sponge rubber pad 163, the third pressing plate sponge rubber pad 173, and the fourth pressing plate sponge rubber pad 185 all play a role in anti-slip fixing and anti-wear. Moreover, the combination of the first electric telescopic rod 131, the first pressing plate 132, the first pressing plate sponge rubber pad 133, and the embedded horizontal plate 2 increases the contact surface between this special lifting tool for H-shaped steel and the H-shaped steel C. As a result, when this special lifting tool for H-shaped steel hoists the H-shaped steel C, it can tightly press and fix multiple parts of the H-shaped steel while also having anti-wear performance. Thus, the stability of this special lifting tool for H-shaped steel with respect to the H-shaped steel C is strong and the safety performance is high. The combined setting of the first electric telescopic rod 131, the second electric telescopic rod 161, the third electric telescopic rod 171, the fourth electric telescopic rod 181, and the fifth electric telescopic rod 183 enables this special lifting tool for H-shaped steel to adjust and tightly press and fix H-shaped steel C of different sizes and models during hoisting, so the applicable range is wide.

[0042] In summary, the present invention has the following beneficial effects: The combined setting of the lifting tool main body 1 and the embedded horizontal plate 2 enables this special lifting tool for H-shaped steel to tightly press and fix multiple parts of the H-shaped steel during hoisting, so the stability of this special lifting tool for H-shaped steel with respect to the H-shaped steel is strong and the safety performance is high. The combined setting of the lifting tool main body 1 and the embedded horizontal plate 2 enables this special lifting tool for H-shaped steel to prevent wear on the H-shaped steel during hoisting, and enables this special lifting tool for H-shaped steel to adjust and tightly press and fix H-shaped steel of different sizes and models during hoisting, so the applicable range is wide.

Claims

1. A special lifting device for H-beam, characterized by: The two spreader bodies are fixedly connected together by welding, the spreader bodies are provided with fixing holes, the spreader bodies are provided with a transverse plate embedded groove, the embedded transverse plate is provided with an embedded transverse plate body, and the embedded transverse plate body is provided with a middle through-hole, the embedded transverse plate body is fixedly connected in the transverse plate embedded groove of the two spreader bodies by welding, the spreader bodies are provided with two first fixing grooves, the first electric telescopic rods are fixed in the first fixing grooves, all the first electric telescopic rods on the two spreader bodies are fixedly connected with a first pressing plate, and the first pressing plate is tightly pressed on the side of the flange plate on the upper part of the H-shaped steel; The first pressing plate passes through the middle opening; The sling body is provided with an inner cavity and a bottom opening, and a second fixing groove is provided inside the sling body. A second electric telescopic rod is fixedly connected to the second fixing groove. A second pressing plate is fixedly connected to the second electric telescopic rod. The second pressing plate presses the web of the H-shaped steel tightly. A third fixing groove is provided inside the spreader body, a third electric telescopic rod is fixedly connected to the third fixing groove, a third pressing plate is fixedly connected to the third electric telescopic rod, and the third pressing plate is tightly pressed on the top surface of the flange plate at the lower part of the H-shaped steel; A fourth fixing groove is provided inside the spreader body, a fourth electric telescopic rod is fixedly connected to the fourth fixing groove, a push plate is fixedly connected to the fourth electric telescopic rod, and the push plate is hollow inside and has a bottom opening; The pushing plate is fixedly connected to the inside with a fifth electric telescopic rod, which is passed through and fixed in the fourth pressing plate. The fourth pressing plate is an L-shaped plate structure, which is tightly pressed against the flange plate side ring and the flange plate bottom surface at the lower part of the H-shaped steel.

2. The H-beam special lifting device according to claim 1, characterized in that: A layer of first pressing plate sponge rubber pad is fixedly provided on the first pressing plate.

3. The H-beam special lifting device according to claim 2, characterized in that: An anti-skid groove is recessed on the main body of the sling, and an anti-skid rubber pad is fixedly connected in the anti-skid groove.

4. The H-beam special lifting device according to claim 3, characterized in that: A layer of second pressing plate sponge rubber pad is fixedly provided on the second pressing plate.

5. The H-beam special lifting device according to claim 4, characterized in that: A layer of third pressing plate sponge rubber pad is fixedly provided on the third pressing plate.

6. The special lifting device for H-beam according to claim 5, characterized in that: A layer of fourth pressing plate sponge rubber pad is fixedly provided on the fourth pressing plate.

7. A method for hoisting a special lifting device for H-beam, applied to the special lifting device for H-beam as claimed in claim 6, characterized in that: The steps are as follows: The steps of the hoisting method of the H-beam special hoist are as follows: Step 1: Fix two H-beam special spreaders to the spreader fixing plate by fasteners, and make the two H-beam special spreaders symmetrical. The distance between the two H-beam special spreaders is set to 0.5-0.7 meters, and the distance between the two embedded horizontal plates is set to 0.8-1 meters. The top of the spreader fixing plate is fixedly connected to the lifting rope; Step 2: Place the bottom surface of the upper flange of the H-beam on four non-slip rubber pads and place the web of the H-beam between the second pressure plates of two such H-beam special lifting devices. The thickness of the non-slip rubber pads should be 2 to 4 cm and should be replaced every 1 to 2 months. Step 3: Activate the first electric telescopic rod by pressing the control switch button of the first electric telescopic rod to extend it so that the first pressure plate sponge rubber pad of the first pressure plate is tightly pressed and fixed on the side of the flange plate of the upper part of the H-shaped steel, and activate the second electric telescopic rod by pressing the control switch button of the second electric telescopic rod to extend it so that the second pressure plate sponge rubber pad of the second pressure plate is tightly pressed and fixed on the web of the H-shaped steel. The first pressure plate sponge rubber pad and the second pressure plate sponge rubber pad should be replaced every 10 to 15 days. Step 4: Use the control switch button of the third electric telescopic rod to start the third electric telescopic rod to extend it so that the third pressing plate sponge rubber pad of the third pressing plate is tightly pressed and fixed on the top surface of the flange plate at the lower part of the H-shaped steel. The third pressing plate sponge rubber pad should be replaced every 10 to 15 days. Step 5: Use the control switch button of the fifth electric telescopic rod to activate the fifth electric telescopic rod to adjust its extension and contraction, and use the control switch button of the fourth electric telescopic rod to activate the fourth electric telescopic rod to adjust its extension and contraction, so that the fourth pressing plate is pressed tightly against the side surface of the flange plate at the lower part of the H-beam, and the fourth pressing plate sponge rubber pad of the fourth pressing plate is pressed tightly against the bottom surface of the flange plate at the lower part of the H-beam. The fourth pressing plate sponge rubber pad should be replaced every 10 to 15 days. Step 6: After confirming that the H-beam is fastened, start the crane to lift the lifting rope for hoisting operation; Step 7: When the H-beam arrives at the lifting location, the control switch button of the first electric telescopic rod is used to start the first electric telescopic rod to retract it, the control switch button of the second electric telescopic rod is used to start the second electric telescopic rod to retract it, the control switch button of the third electric telescopic rod is used to start the third electric telescopic rod to retract it, the control switch button of the fourth electric telescopic rod is used to start the fourth electric telescopic rod to retract it, and the control switch button of the fifth electric telescopic rod is used to start the fifth electric telescopic rod to retract it and the H-beam can be removed from the H-beam special lifting device.

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