I-shaped steel clamp capable of being locked

Abstract

The utility model discloses an I-shaped steel clamp capable of being locked. The I-shaped steel clamp comprises a pair of clamp assemblies. The rotating shaft is connected with the pair of clamp assemblies; the clamp assembly comprises a left clamping piece and a right clamping piece which are connected with the rotating shaft and are rotationally mounted by taking the rotating shaft as the center; the ratchet wheel is arranged on the left clamping piece; the pawl is rotatably arranged on the right clamping piece and can be in butt joint with the ratchet wheel during rotation; when the left clamping piece and the right clamping piece respectively clamp an upper wing plate of I-shaped steel, the pawl is rotated to be in butt joint with the ratchet wheel, and the I-shaped steel is clamped by the left clamping piece and the right clamping piece. The two clamp assemblies are arranged in the length direction of the I-shaped steel, the upper wing plate of the I-shaped steel is clamped through the left clamping pieces and the right clamping pieces of the clamp assemblies, meanwhile, the relative positions of the left clamping pieces and the right clamping pieces are locked through butt joint of ratchet wheels and pawls, and chucks are prevented from loosening; the two clamp assemblies are connected through the rotating shaft, the suspension pieces are connected to the ends of the clamp assemblies, and finally I-shaped steel is carried through lifting equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of steel material handling clamps, in particular to a lockable I-beam clamp. Background Art

[0002] I-beam is also called steel beam (English name: Universal Beam), which is a long steel bar with an I-shaped cross section. I-beams are divided into ordinary I-beams and light I-beams. It is a steel section with an I-shaped cross section. I-beams mainly include horizontally arranged upper wing plates and lower wing plates, and vertically arranged waist plates connecting the upper wing plates and the lower wing plates.

[0003] In tunnel construction, I-beams are one of the most commonly used steel materials. During the transportation process, I-beams are mostly transported to the installation location manually. However, due to the heavy weight of I-beams and the traditional transportation method of using straps, the straps are prone to fatigue after repeated use, which may cause the straps to break during a certain use. The I-beams fall off during the transportation process, causing cost losses and even life safety issues. Therefore, there is an urgent need for a tool that can effectively transport I-beams. Utility Model Content

[0004] The purpose of the utility model is to provide a lockable I-beam clamp based on the above-mentioned deficiencies of the prior art, which clamps the upper wing plate of the I-beam by means of a left clamp and a right clamp, and locks the relative position between the left clamp and the right clamp by the docking of the ratchet and the pawl, thereby preventing the chuck from loosening and realizing the handling of the I-beam.

[0005] The purpose of this utility model is achieved by the following technical solutions:

[0006] A lockable I-beam clamp, comprising:

[0007] a pair of clamp assemblies;

[0008] A rotating shaft connecting a pair of the clamp assemblies; and

[0009] A pair of suspension members are respectively connected to the two ends of the rotating shaft, wherein

[0010] The clamp assembly comprises:

[0011] A left clamp and a right clamp connected to the rotating shaft and rotatably mounted around the rotating shaft;

[0012] A ratchet wheel disposed on the left clamp; and

[0013] A ratchet pawl rotatably disposed on the right clamp and capable of engaging with the ratchet wheel when rotating;

[0014] When the left clamp and the right clamp respectively clamp the upper wing plate of the I-beam, the pawl is rotated to dock with the ratchet, and the left clamp and the right clamp clamp the I-beam.

[0015] Optionally, the bottoms of the left clamp and the right clamp are bent relative to each other to form clamps, and the clamps hook the upper wing plate of the I-beam.

[0016] Optionally, the left clamp further includes a first connecting circular plate, the ratchet is arranged on the outer circular wall of the first connecting circular plate, and the ratchet has ratchet teeth.

[0017] Optionally, there are two right clamps, which are respectively located at the front and rear ends of the left clamp in the longitudinal direction of the rotating shaft. The right clamp also includes a second connecting circular plate, and the pawl is rotatably mounted between the two second connecting circular plates. The pawl has ratchet teeth that match the ratchet structure of the ratchet wheel.

[0018] Optionally, the front and rear surfaces of the pawl are respectively provided with round protrusions, and the two second connecting circular plates are both provided with countersunk holes for accommodating the round protrusions. The pawl is inserted into the countersunk holes through the round protrusions to realize rotation relative to the second connecting circular plates with the round protrusions as the center.

[0019] Optionally, a handle exposed outside the second connecting circular plate is provided on the upper portion of the pawl.

[0020] Optionally, two ends of the rotating shaft respectively pass through and are exposed outside the clamp assembly, and are connected to the suspension member at the ends.

[0021] Optionally, the suspension member includes a mounting sleeve connected to the end of the rotating shaft, the top of the mounting sleeve extends outward to form a protrusion, the protrusion is connected to a lifting ring, and the lifting ring is connected to a lifting rope.

[0022] The advantages of the utility model are:

[0023] The utility model arranges two clamp assemblies in the length direction of the I-beam, and the left clamp and the right clamp of the clamp assembly clamp the upper wing plate of the I-beam, and locks the relative position between the left clamp and the right clamp by docking the ratchet and the pawl, so as to prevent the clamp head from loosening; the two clamp assemblies are connected by a rotating shaft, and the suspension parts are connected at the ends, so as to finally realize the transportation of the I-beam by the lifting equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of the I-beam clamp of the utility model;

[0025] Figure 2 It is a structural schematic diagram of the clamp assembly of the utility model;

[0026] Figure 3 It is a schematic diagram of the structure of the ratchet and the pawl of the utility model when they are closed;

[0027] Figure 4 It is a schematic diagram of the structure of the ratchet and the pawl of the utility model when they are separated;

[0028] Figure 5 This is a schematic diagram of the I-beam clamp of the utility model in use. DETAILED DESCRIPTION

[0029] The marks in the figure are: 1. clamp assembly, 2. rotating shaft, 3. suspension member, 11. left clamp, 12. right clamp, 13. chuck, 14. ratchet, 15. pawl, 16. ratchet, 17. through hole, 31. mounting sleeve, 32. protrusion, 33. lifting ring, 34. lifting rope, 100. I-beam, 111. first connecting circular plate, 121. second connecting circular plate, 151. round protrusion, 152. handle.

[0030] Example: See Figure 1 and Figure 2 As shown, a lockable I-beam clamp of an embodiment is shown, which includes a pair of clamp assemblies 1; a rotating shaft 2 connecting the pair of clamp assemblies 1; and a pair of suspension members 3 respectively connected to the two ends of the rotating shaft 2, wherein the clamp assembly 1 includes: a left clamp 11 and a right clamp 12 connected to the rotating shaft 2 and rotatably installed around the rotating shaft 2; a ratchet 14 arranged on the left clamp 11; and a pawl 15 rotatably arranged on the right clamp 12 and capable of docking with the ratchet 14 when rotating; when the left clamp 11 and the right clamp 12 respectively clamp the upper wing plate of the I-beam 100, the pawl 15 is rotated to dock with the ratchet 14, and the left clamp 11 and the right clamp 12 clamp the I-beam.

[0031] In this embodiment, the bottoms of the left clamp 11 and the right clamp 12 are bent relative to each other to form a clamp 13, which hooks the upper wing plate of the I-beam 100. The left clamp 11 also includes a first connecting circular plate 111, and a ratchet 14 is arranged on the outer circular wall of the first connecting circular plate 111, and the ratchet 14 has ratchet teeth 16.

[0032] In this embodiment, there are two right clamps 12, which are arranged at two positions in front and back of the left clamp 11 in the longitudinal direction of the rotating shaft 2. The right clamp 12 also includes a second connecting circular plate 121, and a pawl 15 is rotatably installed between the two second connecting circular plates 121. The pawl 15 has ratchet teeth that match the ratchet tooth 16 structure of the ratchet wheel 14.

[0033] In this embodiment, the front and rear surfaces of the pawl 15 are respectively provided with round protrusions 151, and the two second connecting circular plates 121 are both provided with countersunk holes (not shown) for accommodating the round protrusions 151. The pawl 15 is inserted into the countersunk holes by the round protrusions 151 to realize rotation relative to the second connecting circular plates 121 with the round protrusions 151 as the center, and the upper part of the pawl 15 is provided with a handle 152 exposed outside the second connecting circular plates 121.

[0034] In this embodiment, both ends of the rotating shaft 2 pass through and are exposed outside the clamp assembly 1, and are connected to the suspension member 3 at the end. The suspension member 3 includes a mounting sleeve 31 connected to the end of the rotating shaft 2. The top of the mounting sleeve 31 extends outward to form a protrusion 32. The protrusion 32 is connected to the lifting ring 33, and the lifting ring 33 is connected to the lifting rope 34.

[0035] The characteristics and functions of the present invention can be further understood through the following description.

[0036] Continue to see Figure 1 , Figure 2 and Figure 3 As shown, the handling fixture of this embodiment mainly solves the problem that some I-beams fall off during the handling process due to their heavy weight and the traditional handling method using straps. The straps are prone to fatigue after repeated use, which may cause the straps to break during a certain use. This causes cost losses and even life safety issues. In order to firmly clamp the I-beam during transportation so that it is not easy to fall off, the present embodiment proposes an I-beam clamp, which mainly includes a left clamp 11 with a ratchet 14, the ratchet 14 is installed on the outer circular wall of the first connecting circular plate 111 of the left clamp 11, and a right clamp 12 with a pawl 15, the pawl 15 is installed in the second connecting circular plate 121 of the right clamp 12, the number of the right clamp 12 is two, which are respectively installed in the front and rear directions of the left clamp 11 and contact the left clamp 11, the pawl 15 is rotatably installed between the two second connecting circular plates 121, the pawl 15 has a round protrusion 151, which can be inserted into the countersunk hole of the second connecting circular plate 121, and the pawl 15 also has a handle 152, by holding the handle 152, the pawl 15 can be controlled to rotate, and can be closed or separated from the ratchet 14 during the rotation process (such as Figure 3 and Figure 4 As shown). And the suspension members 3 are connected to both ends of the rotating shaft 2, and the suspension members 3 can be connected to an external lifting device.

[0037] The working method of the I-beam fixture of the present embodiment is as follows:

[0038] See also Figure 3 , Figure 4 and Figure 5As shown, two clamp assemblies 1 are arranged in the length direction of the I-beam 100, and the rotating shaft 2 is connected between the two clamp assemblies 1, and the end of the rotating shaft 2 exposed from the clamp assembly 1 is connected to the suspension member 3. The clamp heads 13 of the left clamp 11 and the right clamp 12 of the clamp assembly 1 clamp the upper wing plate of the I-beam 100, and when the clamping is in place, the handle 152 is held to close the pawl 15 and the ratchet 14, that is, the relative positions of the left clamp 11 and the right clamp 12 are locked, so that the clamp assembly 1 can firmly and stably clamp the I-beam 100, and finally the I-beam 100 can be hoisted and transported by the hoisting equipment.

[0039] In summary, the utility model sets two clamp assemblies in the length direction of the I-beam, and the left clamp and the right clamp of the clamp assembly clamp the upper wing plate of the I-beam, and at the same time, the relative position between the left clamp and the right clamp is locked by the docking of the ratchet and the pawl to prevent the chuck from loosening; the two clamp assemblies are connected by a rotating shaft, and the suspension parts are connected at the ends, finally realizing the transportation of the I-beam by the lifting equipment.

[0040] The above are only preferred embodiments of the present invention, and do not limit the implementation mode and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A lockable I-beam clamp, characterized in that: include: a pair of clamp assemblies; A rotating shaft connecting a pair of the clamp assemblies; as well as A pair of suspension members are respectively connected to the two ends of the rotating shaft, wherein The clamp assembly comprises: A left clamp and a right clamp connected to the rotating shaft and rotatably mounted around the rotating shaft; A ratchet wheel disposed on the left clamp; and A ratchet pawl rotatably disposed on the right clamp and capable of engaging with the ratchet wheel when rotating; When the left clamp and the right clamp respectively clamp the upper wing plate of the I-beam, the pawl is rotated to dock with the ratchet, and the left clamp and the right clamp clamp the I-beam.

2. The lockable I-beam clamp according to claim 1, characterized in that: The bottoms of the left clamp and the right clamp are bent relative to each other to form clamps, and the clamps hook the upper wing plate of the I-beam.

3. The lockable I-beam clamp according to claim 2, characterized in that: The left clamp also includes a first connecting circular plate, and the ratchet is arranged on the outer circular wall of the first connecting circular plate, and the ratchet has ratchet teeth.

4. The lockable I-beam clamp according to claim 3, characterized in that: There are two right clamps, and the two right clamps are respectively located at the front and rear ends of the left clamp in the longitudinal direction of the rotating shaft. The right clamp also includes a second connecting circular plate, and the pawl is rotatably installed between the two second connecting circular plates. The pawl has ratchet teeth that match the ratchet structure of the ratchet wheel.

5. The lockable I-beam clamp according to claim 4, characterized in that: The front and rear surfaces of the pawl are respectively provided with round protrusions, and the two second connecting circular plates are both provided with countersunk holes for accommodating the round protrusions. The pawl is inserted into the countersunk holes through the round protrusions to realize rotation relative to the second connecting circular plates with the round protrusions as the center.

6. The lockable I-beam clamp according to claim 5, characterized in that: A handle is disposed on the upper portion of the pawl and is exposed outside the second connecting circular plate.

7. The lockable I-beam clamp according to claim 6, characterized in that: Both ends of the rotating shaft pass through and are exposed outside the clamp assembly respectively, and are connected to the suspension member at the end.

8. The lockable I-beam clamp according to claim 7, characterized in that: The suspension member comprises a mounting sleeve connected to the end of the rotating shaft, the top of the mounting sleeve extends outward to form a bulge, the bulge is connected to a lifting ring, and the lifting ring is connected to a lifting rope.

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