Tape winding shaft and hand puller

Abstract

The utility model relates to a hand puller, in particular to a tape winding shaft and the hand puller. A belt winding shaft comprises a semicircular belt winding shaft body made of plates, first reinforcing folded edges are further symmetrically arranged on the two sides of the belt winding shaft body, the first reinforcing folded edges are bent towards the interior of the belt winding shaft body, second reinforcing folded edges are arranged on the first reinforcing folded edges, and the second reinforcing folded edges are bent towards the interior of the belt winding shaft body. The second reinforcing folded edge is bent towards the interior of the tape winding shaft body, an elastic gap is formed between the second reinforcing folded edge and the tape winding shaft body or the second reinforcing folded edge movably abuts against the inner side face of the tape winding shaft body, the diameter of the tape winding shaft body becomes smaller after the tape winding shaft body is stressed, and the second reinforcing folded edge is tightly pressed on the tape winding shaft body. According to the belt winding shaft, a binding belt is prevented from being extruded through hole shrinkage of the body, so that the service life of the binding belt is prolonged, and the binding belt is not prone to breakage.

Description

Technical Field

[0001] The utility model relates to a hand puller, in particular to a winding shaft and a hand puller. Background Art

[0002] The winding shafts (semicircular shafts) of existing hand pullers mostly adopt rolled solid iron rods. For example, a hand puller disclosed in CN104554866A and a pull-type hand puller disclosed in CN116443319A both adopt solid structures. Since the winding shafts are symmetrically arranged and the binding belt is wound around the winding shaft, the two winding shafts will deform towards the center after being stressed, and the winding shafts will press on the binding belt located between the two winding shafts, resulting in the binding belt being subjected to shear force and frictional force, and further causing the binding belt between the two winding shafts to break. Content of the Utility Model

[0003] To solve the problem that the binding belt breaks due to the winding shaft deforming and pressing on the binding belt, the utility model provides a winding shaft, and the specific technical solution is as follows:

[0004] A winding shaft includes a semicircular winding shaft body made of a plate. First reinforcing flanges are symmetrically arranged on both sides of the winding shaft body, and the first reinforcing flanges are bent towards the inside of the winding shaft body. Second reinforcing flanges are arranged on the first reinforcing flanges, and the second reinforcing flanges are bent towards the inside of the winding shaft body and there is an elastic gap between the second reinforcing flanges and the winding shaft body or the second reinforcing flanges are in active contact with the inner side surface of the winding shaft body. After the winding shaft body is stressed, its diameter becomes smaller, and the second reinforcing flanges are pressed tightly on the winding shaft body.

[0005] Preferably, positioning protrusions and positioning holes are respectively arranged at both ends of the winding shaft body.

[0006] A hand puller includes the above-mentioned winding shaft.

[0007] Compared with the prior art, the utility model has the following beneficial effects:

[0008] The winding shaft provided by the utility model avoids squeezing the binding belt by reducing the diameter of the body, thereby increasing the service life of the binding belt, and the binding belt is not easily broken. Description of the Drawings

[0009] Figure 1 is a perspective view of the first perspective of Embodiment 1;

[0010] Figure 2 is a perspective view of the second perspective of Embodiment 1;

[0011] Figure 3 is a front view of Embodiment 1;

[0012] Figure 4 is a sectional view of the first embodiment;

[0013] Figure 5 is a side view of the first embodiment;

[0014] Figure 6 is a structural schematic diagram of the second embodiment. Specific Embodiment

[0015] The present utility model will be further described in conjunction with the accompanying drawings.

[0016] First Embodiment

[0017] As Figures 1 to 5 shown, a tape winding shaft, characterized in that it includes a semi-circular tape winding shaft body 1 made of a plate, first reinforcing flanges 2 and second reinforcing flanges 3 are sequentially provided on both sides of the tape winding shaft body 1, the first reinforcing flanges 2 and the second reinforcing flanges 3 are symmetrically arranged, the first reinforcing flanges 2 are bent inwardly towards the tape winding shaft body 1, and the second reinforcing flanges 3 are bent inwardly towards the tape winding shaft body 1, and there is an elastic gap or they are in active contact with the inner side surface of the tape winding shaft body 1, the first reinforcing flanges 2 and the second reinforcing flanges 3 are in an L shape, the diameter of the tape winding shaft body 1 becomes smaller after being stressed, and the second reinforcing flanges 3 are pressed against the tape winding shaft body 1.

[0018] Positioning protrusions 5 and positioning holes 4 are respectively provided at both ends of the tape winding shaft body 1.

[0019] Since the tape winding shaft is formed by stamping a plate, it has a hollow structure. When the tape winding shaft body 1 is stressed, the diameter of the tape winding shaft body 1 will become smaller. At the same time, the second reinforcing flanges 3 will abut against the inner side surface of the tape winding shaft body 1, preventing the tape winding shaft body 1 from further deforming and improving the overall strength.

[0020] During use, one end of the bundling tape is inserted between two tape winding shaft bodies 1, and then the handle is rotated to tighten. Since the bundling tape is wound around the tape winding shaft body 1, after the tape winding shaft body 1 is stressed, the semi-circular tape winding shaft body 1 contracts towards the center, the diameter of the tape winding shaft body 1 deforms, resulting in an increase in the gap between the two symmetrically arranged tape winding shaft bodies 1, avoiding squeezing the bundling tape and not generating a shearing force on the bundling tape, effectively preventing the bundling tape from breaking. The second reinforcing flanges 3 abut against the tape winding shaft body 1, reducing the further deformation of the tape winding shaft body 1 and improving the overall strength.

[0021] Because the diameter of the tape winding shaft body 1 becomes smaller, the first reinforcing flanges 2 deform inwardly towards the tape winding shaft body 1, thereby increasing the distance between the relatively arranged first reinforcing flanges 2 of the two tape winding shaft bodies 1, and the two symmetrically arranged tape winding shaft bodies 1 do not squeeze the bundling tape.

[0022] Embodiment 2

[0023] like Figure 6 As shown, a hand puller includes a take-up shaft, a take-up shaft body 1 is symmetrically mounted on the hand puller, and a positioning protrusion 5 at one end abuts against one side of the hand puller, and a positioning hole 4 at the other end is restricted on the hand puller by a pin 6 to prevent the take-up shaft body 1 from detaching from the hand puller.

[0024] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the claims of the present invention.

Claims

1. A reel shaft, characterized in that, It includes a semi-circular tape reel shaft body (1) made of a plate, and on both sides of the tape reel shaft body (1), first reinforcing flanges (2) are symmetrically provided. The first reinforcing flanges (2) are bent towards the inside of the tape reel shaft body (1). Second reinforcing flanges (3) are provided on the first reinforcing flanges (2), and the second reinforcing flanges (3) are bent towards the inside of the tape reel shaft body (1), and there is an elastic gap between the second reinforcing flanges (3) and the tape reel shaft body (1) or they are actively abutted against the inner side surface of the tape reel shaft body (1). After the tape reel shaft body (1) is stressed, its diameter becomes smaller, and the second reinforcing flanges (3) are pressed against the tape reel shaft body (1).

2. The winding shaft according to claim 1, characterized in that, Positioning protrusions (5) and positioning holes (4) are respectively provided at both ends of the tape reel shaft body (1).

3. A hand puller, characterized in that, It includes a tape reel shaft as described in claim 1.

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