A C-shaped steel puller

Abstract

The present invention relates to the technical field of lifters, and discloses a C-shaped steel lifter. The lifter comprises a main rod, a secondary rod and a protruding rod, wherein the main rod comprises a handle and a hollow vertical rod of an integrated structure, and several sections of slideways are provided along the circumference of the vertical rod near the handle, and a first limiting protrusion is provided on the middle inner wall of the vertical rod; the secondary rod is installed in the hollow vertical rod, and the secondary rod is provided with several connecting pieces, and the connecting pieces pass through the slideway and are provided with a linkage bracelet at the end of the connecting piece, and the linkage bracelet can pull the secondary rod to slide along the slideway through the connecting piece, and the secondary rod is provided with a first groove corresponding to the position of the first limiting protrusion, and a first return spring is installed in the first groove, and a circular push head is provided at the end of the secondary rod; the protruding rod is integrally arranged with the hollow vertical rod, and the protruding rod is a hollow protruding rod, and two telescopic rods are installed in the hollow protruding rod, and a second groove is provided in the middle position of the telescopic rod, and a second return spring is installed in the second groove. The lifter has a simple structure, high working efficiency, and can avoid the occurrence of safety accidents.

Description

Technical Field

[0001] The invention relates to a puller, in particular to a C-shaped steel puller. Background Art

[0002] C-shaped steel is widely used in purlins, wall beams, roof trusses, and brackets of steel structure buildings. In addition, it can also be used in columns, beams, and arms in mechanical light industry manufacturing. Workers need to move C-shaped steel frequently during construction. Since C-shaped steel itself is relatively heavy and has sharp edges, it is difficult to move, and people may be sprained or scratched, or other equipment may be damaged. So far, there is no effective measure to solve this problem.

[0003] In order to overcome the defects of the prior art described above, the present invention provides a safe and portable C-shaped steel lifting device that can easily lift, move, and hoist the C-shaped steel. Summary of the invention

[0004] In order to solve the technical problem of difficulty in moving and lifting C-shaped steel in the prior art, the present invention provides a C-shaped steel lifting device.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A C-shaped steel puller comprises a main rod, a secondary rod and a protruding rod, the main rod comprising a handle and a hollow vertical rod of an integrated structure, several sections of slideways are provided along the circumference of the vertical rod near the handle, a first limiting protrusion is provided on the middle inner wall of the vertical rod; the secondary rod is installed in the hollow vertical rod, the secondary rod is provided with several connecting pieces, the connecting pieces pass through the slideway and are provided with a linkage bracelet at the end of the connecting piece, and the linkage bracelet can pull the secondary rod to slide along the slideway through the connecting piece, the secondary rod is provided with a first groove corresponding to the position of the first limiting protrusion, a first return spring is installed in the first groove, and a circular push head is provided at the end of the secondary rod; the protruding rod is integrally arranged with the hollow vertical rod, the protruding rod is a hollow protruding rod, two telescopic rods are installed in the hollow protruding rod, a second groove is provided in the middle position of the telescopic rod, a second return spring is installed in the second groove, and the circular push head can push the two telescopic rods to extend.

[0007] The C-shaped steel lifting device provided by the present invention has a linkage bracelet that realizes the retraction and extension of the telescopic rod through the circular push head at the end of the auxiliary rod, so that the telescopic rod is stuck in the opening of the C-shaped steel to realize the movement or lifting of the C-shaped steel, and the resetting of the telescopic rod is assisted by the first return spring and the second return spring; the C-shaped steel is clamped by the lever principle, and the lifting, movement, hoisting and other operations of the C-shaped steel can be completed stably and quickly, which can improve work efficiency, facilitate the safety of workers, and avoid the occurrence of safety accidents.

[0008] Preferably, the hollow vertical rod provided by the present invention is a hollow circular tube, and the hollow protruding rod is a hollow circular protruding rod.

[0009] The C-shaped steel lifting device provided by the present invention also includes two connecting plates, which are respectively welded to the protruding rods on both sides of the vertical rod, and the distance between the two connecting plates is less than the width of the C-shaped steel opening. The connecting plates are welded with a wedge-shaped clamping plate. The distance between the two connecting plates is set so that they can be clamped in the C-shaped steel opening. When the protruding rod is extended and clamped in the C-shaped steel opening, the main rod handle is pulled in the direction of the wedge-shaped clamping plate, so that the front end of the wedge-shaped clamping plate clamps the upper end of the C-shaped steel opening, and cooperates with the telescopic rod to strengthen the clamping of the C-shaped steel, and at the same time, it can also prevent the C-shaped steel lifting device from shaking up and down.

[0010] The C-shaped steel puller provided by the present invention also includes two integrally arranged pin holes, an arc plate and a trapezoidal anti-sway clamping plate. The two side edges of the trapezoidal anti-sway clamping plate are just inserted into the C-shaped steel opening. During operation, the trapezoidal anti-sway clamping plate can effectively prevent the front end of the C-shaped steel puller from swaying left and right. The two pin holes are respectively arranged on one side of the arc plate, and a connecting pin is welded at the connection between the vertical rod and the protruding rod. The two pin holes and the connecting pin are interference fit.

[0011] Preferably, a second limiting protrusion is provided in the middle of the connecting pin, and a notch is provided in the arc-shaped plate between the two pin holes, and the notch cooperates with the second limiting protrusion.

[0012] Compared with the prior art, the present invention provides a C-shaped steel lifting device, which clamps the C-shaped steel by lever principle, and can stably and quickly complete the lifting, moving, hoisting and other operations of the C-shaped steel. It can be seen from the above technical solutions that the C-shaped steel lifting device provided by the present invention has a simple structure, high working efficiency, and can avoid the occurrence of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the C-shaped steel puller provided by the present invention;

[0014] Figure 2 for Figure 1 Section view along AA direction;

[0015] Figure 3 This is an exploded view of the C-shaped steel puller provided by the present invention;

[0016] Figure 4 for Figure 3 The enlarged view of point B;

[0017] Figure 5 for Figure 2 Enlarged view of point C;

[0018] Figure 6 This is a reference diagram of the use status of the C-shaped steel puller provided by the present invention.

[0019] Description of the drawings: 1. Main rod; 2. Auxiliary rod; 3. Protruding rod; 11. Handle; 12. Hollow vertical rod; 13. Slide; 21. Linkage bracelet; 22. Connecting piece; 24. First groove; 25. First return spring; 26. Round push head; 31. Telescopic rod; 32. Second groove; 33. Second return spring; 41. Pin hole; 42. Arc plate; 43. Trapezoidal anti-sway clamping plate; 44. Connecting pin; 45. Second limiting protrusion; 51. Connecting plate; 52 Wedge-shaped clamping plate; 6. C-shaped steel. DETAILED DESCRIPTION

[0020] The present invention discloses a C-shaped steel puller. Those skilled in the art can refer to the content of this article and appropriately improve the parts to achieve the present invention. It should be particularly noted that all similar replacements and modifications are obvious to those skilled in the art, and they are all considered to be included in the present invention. The method and application of the present invention have been described through preferred embodiments, and relevant personnel can obviously modify or appropriately change and combine the methods and applications described herein without departing from the content, spirit and scope of the present invention to achieve and apply the technology of the present invention.

[0021] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with specific implementation methods.

[0022] The present invention provides a C-shaped steel puller, comprising a main rod 1, a secondary rod 2 and a protruding rod 3, wherein the main rod comprises a handle 11 and a hollow vertical rod 12 of a circular tube of an integrated structure, wherein a plurality of slideways 13 are provided along the circumference of the vertical rod near the handle, and a first limiting protrusion (not shown) is provided on the middle inner wall of the vertical rod; the secondary rod 2 is installed in the hollow vertical rod 12, and the secondary rod is provided with a plurality of connecting members 22, wherein the connecting members 22 pass through the slideway 13 and a linkage bracelet 21 is provided at the end of the connecting member, and the linkage bracelet 21 can pull the secondary rod 2 along the vertical rod through the connecting member 22 The slideway 13 slides, and the auxiliary rod 2 is provided with a first groove 24 corresponding to the position of the first limiting protrusion, a first return spring 25 is installed in the first groove 24, and a circular push head 26 is provided at the end of the auxiliary rod; the protruding rod 3 is integrally arranged with the hollow vertical rod 12, the protruding rod 3 is a hollow circular protruding rod, two telescopic rods 31 are installed in the hollow protruding rod 3, a second groove 32 is provided in the middle position of the telescopic rod, a second return spring 33 is installed in the second groove 32, and the circular push head 26 can push the two telescopic rods 31 to extend.

[0023] In a specific embodiment, the C-shaped steel puller provided by the present invention also includes two connecting plates 51, which are respectively welded to the protruding rods 3 on both sides of the vertical pole. The distance between the two connecting plates 51 is slightly smaller than the opening width of the C-shaped steel. The purpose of the distance between the two connecting plates 51 is to make it stuck in the opening of the C-shaped steel. The connecting plate is welded with a wedge-shaped clamping plate 52.

[0024] In a preferred embodiment, the C-shaped steel puller provided by the present invention also includes two integrally arranged pin holes 41, an arc plate 42 and a trapezoidal anti-sway clamping plate 43, the two sides of the trapezoidal anti-sway clamping plate 43 just clamp the C-shaped steel opening, the two pin holes 41 are respectively arranged on one side of the arc plate 42, and a connecting pin 44 is welded at the connection between the vertical rod 12 and the protruding rod 3. The two pin holes 41 and the connecting pin 44 have an interference fit, and a second limiting protrusion 45 is provided in the middle of the connecting pin 44, and the arc plate between the two pin holes is provided with a notch, and the notch cooperates with the second limiting protrusion 45 to achieve the limitation of the arc plate 42.

[0025] When in use, move the C-shaped steel puller to one end of the C-shaped steel, put one hand on the handle of the main rod 11, pull the linkage bracelet 21 upwards, so that the telescopic rod 31 in the protruding rod is linked to shrink, put the 3 limit rod into the opening of the C-shaped steel, and then release the linkage bracelet 21, the telescopic rod 31 is linked to extend and clamped into the opening of the C-shaped steel; pull the handle of the main rod 11 in the opposite direction of the trapezoidal anti-sway clamping plate 43, so that the wedge-shaped clamping plate 52 cooperates with the telescopic rod 31 to clamp the opening of the C-shaped steel, so that the C-shaped steel can be moved to the specified position; after the movement is completed, lift the linkage bracelet 21 upwards, the telescopic rod 31 is linked to shrink, and the C-shaped steel puller is taken away, and the operation is completed.

[0026] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A C-shaped steel puller, characterized in that: The invention comprises a main rod, a secondary rod and a protruding rod, the main rod comprises a handle and a hollow vertical rod of an integrated structure, a plurality of slideways are provided along the circumference of the vertical rod near the handle, a first limiting protrusion is provided on the middle inner wall of the vertical rod; the secondary rod is installed in the hollow vertical rod, the secondary rod is provided with a plurality of connecting pieces, the connecting pieces pass through the slideway and a linkage bracelet is provided at the end of the connecting piece, and the linkage bracelet can pull the secondary rod to slide along the slideway through the connecting piece, the secondary rod is provided with a first groove corresponding to the position of the first limiting protrusion, a first return spring is installed in the first groove, and a circular push head is provided at the end of the secondary rod; the protruding rod is integrally arranged with the hollow vertical rod, the protruding rod is a hollow protruding rod, two telescopic rods are installed in the hollow protruding rod, a second groove is provided in the middle position of the telescopic rod, a second return spring is installed in the second groove, and the circular push head can push the two telescopic rods to extend; The C-shaped steel lifting device further comprises two connecting plates, which are respectively welded to the protruding rods on both sides of the vertical rod, the distance between the two connecting plates is slightly smaller than the opening width of the C-shaped steel, and the connecting plates are welded with wedge-shaped clamping plates; The C-shaped steel puller also includes two integrally arranged pin holes, an arc plate and a trapezoidal anti-sway clamping plate. The two sides of the trapezoidal anti-sway clamping plate are just inserted into the C-shaped steel. The two pin holes are respectively arranged on one side of the arc plate. A connecting pin is welded at the connection between the vertical rod and the protruding rod, and the two pin holes and the connecting pin are interference fit.

2. The C-shaped steel puller according to claim 1, characterized in that: The hollow vertical rod is a hollow circular tube, and the hollow protruding rod is a hollow circular protruding rod.

3. The C-shaped steel puller according to claim 1, characterized in that: A second limiting protrusion is provided in the middle of the connecting pin, and a notch is provided in the arc-shaped plate between the two pin holes, and the notch matches with the second limiting protrusion.

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