CN221086845U - Manual pipe bender - Google Patents

Abstract

The utility model discloses a manual pipe bender which comprises a bottom plate, an integrated shaft wheel, a handle, rollers, a roller support and a pipe bending clamp, wherein the integrated shaft wheel is vertically fixed on the bottom plate, one end of the handle is hinged to the upper end of the integrated shaft wheel and can rotate along the horizontal direction, the rollers are parallel to the integrated shaft wheel, the two ends of the rollers are respectively and rotatably arranged on the handle and the roller support, and the roller support is fixedly connected with the handle. The manual pipe bender provided by the utility model adopts the integrated shaft wheel, is simple in structural form, easy to process, and long in service life, and can prevent the side turning of the bent pipe and make up for the rebound of the pipe.

Description

Manual pipe bender

Technical Field

The utility model relates to a pipe bender, in particular to a manual pipe bender, and belongs to the technical field of pipe machining tools.

Background

The pipe bending is divided into a cold bending mode and a hot bending mode, but both the cold bending mode and the hot bending mode need to be performed by relying on a pipe bender. For some unusual R angle designs of bent pipes, the related pipe bending tool in the prior art is complex in structure and very inconvenient to process, and the final R angle bent pipe can be completed by matching with related dies, so that the manufacturing cost is high.

Disclosure of utility model

The utility model aims to solve the technical problem of providing a manual pipe bender which is simple in structure and convenient to process.

In order to solve the technical problems, the utility model adopts the following technical scheme:

The utility model provides a manual pipe bender, contains bottom plate, integral type arbor wheel, handle, gyro wheel support and return bend anchor clamps, and the vertical fixing of integral type arbor wheel is on the bottom plate, and the one end of handle articulates in integral type arbor wheel upper end and can follow the horizontal direction and rotate, and the gyro wheel is on a parallel with the setting of integral type arbor wheel and the both ends of gyro wheel rotate respectively and set up on handle and gyro wheel support, gyro wheel support and handle fixed connection.

Further, the integral shaft wheel and the roller are provided with annular grooves which are matched with each other and the diameters of the bent pipes.

Further, the upper end of integral type arbor wheel is provided with the handle connecting axle, and open the one end of handle has the vertical through-hole that matches with the handle connecting axle, and handle one end is established on the handle connecting axle through vertical through-hole cover, and the handle connecting axle upper end outside is provided with the external screw thread, and the nut is screwed fixedly on the external screw thread of handle connecting axle upper end.

Further, the elbow clamp comprises a vertical plate and a fixed groove block, wherein the vertical plate is vertically fixed on the bottom plate, the fixed groove block is detachably arranged on the upper side of the vertical plate through a bolt, and an elbow fixing groove matched with the elbow in diameter is formed in the lower side of the fixed groove block.

Further, one end of the handle, which is hinged with the integrated arbor wheel, is provided with a limiting clamping groove, the handle is positioned in an initial position state, the handle is parallel to the vertical plate and the idler wheel is abutted against the side surface of the vertical plate, and the handle is positioned in a final position state, and is parallel to the vertical plate and the limiting clamping groove is abutted against one end surface of the fixed groove block.

Further, the roller support is an L-shaped support, a clamping groove matched with the upper end of the roller support is formed in the side face of one side of the handle, the upper end of the roller support is locked and fixed in the clamping groove on one side of the handle through a bolt, the upper end of the roller is rotatably arranged on the handle, and the lower end of the roller is rotatably arranged on the roller support.

Further, the two sides of the roller support are respectively provided with an elbow guide groove matched with the elbow in diameter, and the elbow guide grooves are arranged along the horizontal direction.

Further, the width of the roller support is larger than the diameter of the roller.

Compared with the prior art, the utility model has the following advantages and effects:

1. Compared with the prior art with a profiling structure with a complex structure, the utility model adopts the integrated shaft wheel, has simple structural form and is easy to process;

2. the bending machine can bend at a large angle, and the bent pipe guide groove structures are arranged on the two sides of the roller bracket, so that the upper and lower positions of the bent pipe can be limited in the process of bending the bent pipe, and side turning in the process of bending the bent pipe is avoided;

3. The width of the roller bracket is larger than the diameter of the roller, so that the actual bending angle of the roller bracket side bent pipe guide groove on the bent pipe is larger than the bent pipe angle of the roller on the bent pipe, and the rebound exists in the pipe when the bent pipe is bent, the structure can counteract the rebound of the bent pipe, and the bent pipe effect is ensured;

4. Compared with the double-roller structure commonly used in the prior art, the fixed integral axle structure is more stable, extrusion deformation in use is effectively prevented, and the service life of the pipe bender is prolonged.

Drawings

FIG. 1 is a schematic view of a manual tubing bender of the present utility model.

FIG. 2 is another schematic view of a manual tube bender of the present utility model.

Reference numerals illustrate: 1. a bottom plate; 2. an integral arbor wheel; 3. a handle; 4. a roller; 5. a roller bracket; 6. an annular groove; 7. a handle connecting shaft; 8. a nut; 9. a riser; 10. fixing the groove block; 11. a bent pipe fixing groove; 12. a limit clamping groove; 13. and a bent pipe guide groove.

Detailed Description

In order to explain in detail the technical solutions adopted by the present utility model to achieve the predetermined technical purposes, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and that technical means or technical features in the embodiments of the present utility model may be replaced without inventive effort, and the present utility model will be described in detail below with reference to the accompanying drawings in combination with the embodiments.

As shown in fig. 1 and 2, the manual pipe bender of the present utility model comprises a base plate 1, an integral shaft wheel 2, a handle 3, a roller 4, a roller bracket 5 and a pipe bending clamp. The bottom plate 1 is a rectangular flat plate structure and is used as the bottom bearing of the whole manual pipe bender, and in order to ensure the stability of the pipe bender in the use process, the bottom plate 1 needs to have enough size and weight. The integral type arbor wheel 2 is vertical to be fixed on bottom plate 1, and the one end of handle 3 articulates in the 2 upper ends of integral type arbor wheel and can follow the horizontal direction rotation, and gyro wheel 4 is on a parallel with the setting of integral type arbor wheel 2 and the both ends of gyro wheel 4 rotate respectively and set up on handle 3 and gyro wheel support 5, gyro wheel support 5 and handle 3 fixed connection.

The integral arbor wheel 2 and the idler wheel 4 are provided with annular grooves 6 which are matched with each other and the diameters of the bent pipes. Therefore, when the pipe is bent, the pipe is directly clamped in the annular grooves 6 of the integral shaft wheel 2 and the roller 4, and the positions of the pipe up and down and left and right are limited.

The upper end of integral type arbor wheel 2 is provided with handle connecting axle 7, and open the one end of handle 3 has the vertical through-hole that matches with handle connecting axle 7, and handle 3 one end is established on handle connecting axle 7 through vertical through-hole cover, and handle connecting axle 7 upper end outside is provided with the external screw thread, and nut 8 is screwed fixedly on handle connecting axle 7 upper end external screw thread. After the nut 8 is mounted, the lower side of the nut 8 is not in contact with the upper side surface of the handle 3, and the handle 3 can freely rotate along the circumferential direction of the handle connecting shaft 7 at the upper end of the handle connecting shaft 7.

The pipe bending fixture comprises a vertical plate 9 and a fixed groove block 10, wherein the vertical plate 9 is vertically fixed on the bottom plate 1, the fixed groove block 10 is detachably arranged on the upper side of the vertical plate 9 through bolts, and a pipe bending fixed groove 11 matched with the pipe bending diameter is formed in the lower side of the fixed groove block 10. As shown in fig. 1, the handle 3 of the manual pipe bender is at the initial position, at this time, the pipe bending fixing groove 11 and the annular grooves 6 of the integral shaft wheel 2 and the roller 4 are positioned on the same straight line, and the pipe can be directly inserted between the integral shaft wheel 2 and the annular grooves 6 of the roller 4 along the pipe bending fixing groove 11, and then the bolt is screwed tightly so as to fix the pipe in the pipe bending fixing groove 11 of the fixing groove block 10.

One end of the handle 3 hinged with the integral shaft wheel 2 is provided with a limiting clamping groove 12, as shown in fig. 1, when the handle 3 is in an initial position state, the handle 3 is parallel to the vertical plate 9, the idler wheel 4 is abutted against the side surface of the vertical plate 9, as shown in fig. 2, when the handle 3 is in a final position state, the handle 3 is parallel to the vertical plate 9, and the limiting clamping groove 12 is abutted against one end surface of the fixed groove block 10. In the present embodiment, since the riser 9 and the fixed groove block 10 are each of a plate structure, both large planes of the plate are both side surfaces of the riser 9 and the fixed groove block 10, and both side surfaces of the plate in the thickness direction are both end surfaces of the riser 9 and the fixed groove block 10.

The gyro wheel support 5 is L type support, and open the draw-in groove that has with gyro wheel support 5 upper end matching in handle 3 one side, and the upper end of gyro wheel support 5 passes through the bolt lock to be fastened in the draw-in groove of handle 3 one side, and the upper end rotation of gyro wheel 4 sets up on handle 3, and the lower extreme rotation of gyro wheel 4 sets up on gyro wheel support 5.

The two sides of the roller bracket 5 are respectively provided with an elbow guide groove 13 matched with the diameter of an elbow, the elbow guide grooves 13 are arranged along the horizontal direction, and the vertical height of the elbow guide grooves 13 is matched with the heights of the integrated shaft wheel 2 and the annular groove 6 on the roller 4. Therefore, when the pipe is bent, one side of the end part of the pipe is always clamped in the bent pipe guide groove 13, and the pipe can be prevented from turning upwards or downwards in the pipe bending process. The width of the roller bracket 5 is larger than the diameter of the roller 4, so that the actual bending angle of the roller bracket side bent pipe guide groove to the bent pipe is larger than the bent pipe angle of the roller to the bent pipe, and the rebound exists in the pipe when the bent pipe is bent, so that the rebound of the bent pipe can be counteracted by the structure, and the bent pipe effect is ensured.

The use principle of the manual pipe bender provided by the utility model is as follows: the handle 3 is first rotated to an initial position as shown in fig. 1, at which time the integral arbor wheel 2 and roller 4 are juxtaposed on the rear side of the riser 9. Then the bolts between the fixed groove blocks 10 and the vertical plates 9 are loosened, one end of the pipe is inserted into the annular grooves 6 of the integrated shaft wheel 2 and the idler wheels 4 along the bent pipe fixed groove 11, and after the pipe is inserted into a sufficient length, the bolts between the fixed groove blocks 10 and the vertical plates 9 are screwed so as to fix the pipe in the bent pipe fixed groove 11. At this time, the handle 3 is rotated to a proper position so as to bend the pipe to a required angle, and the manual pipe bender of the present utility model can bend the pipe 180 ° at maximum.

Compared with the prior art with a profiling structure with a complex structure, the utility model adopts the integrated shaft wheel, has simple structural form and is easy to process; the bending machine can bend at a large angle, and the bent pipe guide groove structures are arranged on the two sides of the roller bracket, so that the upper and lower positions of the bent pipe can be limited in the process of bending the bent pipe, and side turning in the process of bending the bent pipe is avoided; the width of the roller bracket is larger than the diameter of the roller, so that the actual bending angle of the roller bracket side bent pipe guide groove on the bent pipe is larger than the bent pipe angle of the roller on the bent pipe, and the rebound exists in the pipe when the bent pipe is bent, the structure can counteract the rebound of the bent pipe, and the bent pipe effect is ensured; compared with the double-roller structure commonly used in the prior art, the fixed integral axle structure is more stable, extrusion deformation in use is effectively prevented, and the service life of the pipe bender is prolonged.

The present utility model is not limited to the preferred embodiments, but is capable of modification and variation in detail, and other embodiments, such as those described above, of making various modifications and equivalents will fall within the spirit and scope of the present utility model.

Claims (6)

1. A manual pipe bender which is characterized in that: the device comprises a bottom plate, an integrated shaft wheel, a handle, rollers, roller supports and a bent pipe clamp, wherein the integrated shaft wheel is vertically fixed on the bottom plate, one end of the handle is hinged to the upper end of the integrated shaft wheel and can rotate along the horizontal direction, the rollers are parallel to the integrated shaft wheel, the two ends of the rollers are respectively and rotatably arranged on the handle and the roller supports, and the roller supports are fixedly connected with the handle; the roller support is an L-shaped support, a clamping groove matched with the upper end of the roller support is formed in the side face of one side of the handle, the upper end of the roller support is locked and fixed in the clamping groove on one side of the handle through a bolt, the upper end of the roller is rotatably arranged on the handle, and the lower end of the roller is rotatably arranged on the roller support; and bent pipe guide grooves matched with the diameters of the bent pipes are respectively arranged on two sides of the roller support, and the bent pipe guide grooves are arranged along the horizontal direction.

2. A manual pipe bender according to claim 1, wherein: the integral shaft wheel and the roller are provided with annular grooves which are matched with each other and the diameters of the bent pipes.

3. A manual pipe bender according to claim 1, wherein: the upper end of integral type arbor wheel is provided with the handle connecting axle, and open the one end of handle has the vertical through-hole that matches with the handle connecting axle, and handle one end is established on the handle connecting axle through vertical through-hole cover, and the handle connecting axle upper end outside is provided with the external screw thread, and the nut is screwed fixedly on the external screw thread of handle connecting axle upper end.

4. A manual pipe bender according to claim 1, wherein: the pipe bending clamp comprises a vertical plate and a fixed groove block, wherein the vertical plate is vertically fixed on a bottom plate, the fixed groove block is detachably arranged on the upper side of the vertical plate through a bolt, and a pipe bending fixing groove matched with the pipe bending diameter is formed in the lower side of the fixed groove block.

5. A manual pipe bender according to claim 4, wherein: the handle is provided with spacing draw-in groove with the articulated one end of integral type arbor wheel, and the handle is located under the initial position state, and the handle is on a parallel with riser and gyro wheel supports and leans on the riser side, and the handle is located under the extreme position state, and the handle is on a parallel with riser and spacing draw-in groove supports and leans on the one end terminal surface of fixed slot piece.

6. A manual pipe bender according to claim 1, wherein: the width of the roller support is larger than the diameter of the roller.