Simple manual pipe bender convenient for die replacement

Abstract

The utility model discloses a simple manual pipe bender facilitating die replacement. The simple manual pipe bender comprises a base, a replaceable forming die, a stop block, a first screw, a second screw, a handle, a screw pin and a rotating wheel. The base comprises a clamping connector, a concentric ring and a plurality of stop block screw holes. The concentric ring is sleeved with the replaceable forming die, the check block is fixed to the check block screw hole through the first screw, the rotating wheel is fixed to the handle through the second screw, and the screw pin is fixed to the end of the handle and corresponds to the concentric ring in position. The pipe bending device is simple in structure, convenient to operate and suitable for manual bending of pipes with small pipe diameters.

Description

Technical Field

[0001] The utility model relates to the field of pipe bending processing, in particular to a simple manual pipe bender which is convenient for changing molds. Background Art

[0002] Metal pipe fittings play an important role in industrial production, for example, they are used to construct various hydraulic pipelines. From raw pipes to practical applications, pipe fittings often need to be bent and formed. At present, there are various manual pipe bending machines, semi-automatic pipe bending machines and fully automatic pipe bending machines for bending pipe fittings. However, the above bending equipment has various limitations.

[0003] For example, many manual pipe bending machines are made in one piece and can only bend pipes of fixed sizes. Many automatic and semi-automatic pipe bending machines need to replace the forming parts to bend different pipes, but it is often troublesome to replace the parts, which is not suitable for bending a small number of products.

[0004] In view of this, we propose a simple manual pipe bender that is easy to change molds. Summary of the invention

[0005] In order to solve the above technical problems, the utility model discloses a simple manual pipe bender that is convenient for mold change. The technical solution of the utility model is implemented as follows:

[0006] A simple manual pipe bender convenient for changing molds comprises a base, a replaceable forming mold, a stopper, a first screw, a second screw, a handle, a screw pin and a rotating wheel;

[0007] The base includes a clamping interface, a concentric ring and a plurality of stopper screw holes;

[0008] The replaceable forming mold is sleeved on the concentric rings, the stopper is fixed to the stopper screw hole by the first screw, the rotating wheel is fixed to the handle by the second screw, and the screw is fixed to the end of the handle and corresponds to the position of the concentric rings.

[0009] Preferably, the replaceable forming die is a circular ring structure; the outer ring of the replaceable forming die is circumferentially provided with a semicircular groove, or a V-shaped groove, or a groove matching the cross section of the pipe, and different forming dies can be made according to the required bending radius.

[0010] Preferably, the stopper is a circular ring structure, the outer ring of the stopper is provided with a V-shaped groove along the circumferential direction, and the inner hole of the stopper is concentric with the outer ring.

[0011] Preferably, the handle comprises at least three fixing screw holes for fastening the screw pin and the rotating wheel.

[0012] Preferably, the runner is a circular ring structure; the outer ring of the runner is provided with a semicircular groove, or a V-shaped groove, or a groove matching the cross section of the pipe along the circumference.

[0013] The utility model is suitable for occasions with many specifications, simple bending shapes, small batches and frequent replacement of forming dies, and has high speed, low cost and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0016] Figure 1 It is a structural schematic diagram of an embodiment of a simple manual pipe bender that is convenient for mold change;

[0017] Figure 2 A schematic diagram of a base assembly structure of an embodiment of a simple manual pipe bender that is convenient for mold change;

[0018] Figure 3 A schematic diagram of a handle assembly structure of an embodiment of a simple manual pipe bender that is convenient for mold change;

[0019] Figure 4 A schematic diagram of a replaceable forming die structure of an embodiment of a simple manual pipe bender that facilitates die change;

[0020] In the above drawings, the figure numbers represent:

[0021] 1. Base;

[0022] 1a-clamping interface, 1b-concentric ring, 1c-stopper screw hole;

[0023] 2. Replaceable forming mold;

[0024] 2a-semicircular groove, 2b-inner hole;

[0025] 3. Stopper;

[0026] 4. Screws;

[0027] 5. Handle;

[0028] 5a-fixing screw hole;

[0029] 6. Screw pin;

[0030] 7. Rotating wheel;

[0031] 8. Second screw. DETAILED DESCRIPTION

[0032] The following will be combined with the implementation of the utility model and its drawings to clearly and completely describe the technical solution in the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Example

[0034] In a specific embodiment, Figure 1-Figure 4 As shown, a simple manual pipe bender that is easy to change molds includes a base 1, a replaceable forming mold 2, a stopper 3, a first screw 4, a handle 5, a screw pin 6, a rotating wheel 7 and a second screw 8.

[0035] In this embodiment, the base 1 is provided with a clamping interface 1a, a concentric ring 1b, and a plurality of stopper screw holes 1c.

[0036] Wherein, the replaceable forming die 2 is sleeved on the concentric ring 1b of the base 1;

[0037] In this embodiment, the replaceable forming mold 2 is a circular ring structure, the outer ring of which is provided with a semicircular groove 2a along the circumferential direction, and the inner ring is provided with an inner hole 2c concentric with the outer ring.

[0038] The stopper 3 is a circular ring structure, the outer ring of which is provided with a V-shaped groove along the circumferential direction, and the inner part is provided with a hole concentric with the outer ring; the stopper 3 is fixed to the stopper screw hole 1c of the base 1 by a first screw 4, and it is ensured that the stopper 3 cannot rotate freely.

[0039] A plurality of screw holes 5a are provided at one end of the handle 5; wherein, a screw pin 6 is fastened to the screw hole at the end of the handle 5; and a rotating wheel 7 is fixed to the screw hole in the middle of the handle by a second screw 8.

[0040] The rotating wheel 7 is a circular ring structure, the outer ring of which is provided with a V-shaped groove along the circumferential direction, and the inner part is provided with a hole concentric with the outer ring to ensure that the rotating wheel 7 can rotate freely.

[0041] When the present embodiment is in use, the base 1 is first clamped on a vise, and then the stopper 3 is fixed to the base 1 with a first screw 4, and then the replaceable forming die 2 is sleeved on the concentric ring 1b of the base 1; then the handle 2 is assembled, the screw pin 6 is fastened to the fixing screw hole at the end of the handle 5, and the rotating wheel 7 is fixed to the fixing screw hole in the middle of the handle 5 with a second screw 8, and it is ensured that the rotating wheel 7 can rotate freely; then the screw pin 6 on the assembled handle 5 is inserted into the concentric ring 1b on the base 1; finally, the pipe to be bent is clamped on the replaceable forming die 2 to limit the stopper 3, and the handle 5 is pulled to achieve the bending of the pipe.

[0042] The utility model is suitable for occasions with many specifications, simple bending shapes, small batches and frequent replacement of forming dies, and has high speed, low cost and high efficiency.

[0043] It should be pointed out that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A simple manual pipe bender that is easy to change molds, characterized in that: It includes a base, a replaceable forming die, a stopper, a first screw, a second screw, a handle, a screw pin and a rotating wheel; The base includes a clamping interface, a concentric ring and a plurality of stopper screw holes; The replaceable forming die is sleeved on the concentric ring, the stopper is fixed to the screw hole of the stopper by the first screw, the rotating wheel is fixed to the handle by the second screw, and the screw pin is fixed to the end of the handle and corresponds to the position of the concentric ring; The handle comprises at least three fixing screw holes for fastening the screw pin and the rotating wheel.

2. The simple manual pipe bender for easy mold change according to claim 1 is characterized in that: The replaceable forming die is a circular ring structure; the outer ring of the replaceable forming die is provided with a semicircular groove or a V-shaped groove along the circumferential direction.

3. The simple manual pipe bender for easy mold change according to claim 1 is characterized in that: The stopper is a circular ring structure, the outer ring of the stopper is provided with a V-shaped groove along the circumferential direction, and the inner hole of the stopper is concentric with the outer ring.

4. The simple manual pipe bender for easy mold change according to claim 1 is characterized in that: The rotating wheel is a circular ring structure; the outer ring of the rotating wheel is provided with a V-shaped groove along the circumferential direction, and the inner hole of the rotating wheel is concentric with the outer ring.

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