Pipeline bending device

Abstract

The utility model relates to a pipeline bending device. The pipeline bending device comprises a base, a fixing block is fixedly installed on the base, a wheel disc is arranged on the front side face of the fixing block, a rotating shaft of the wheel disc is vertically arranged, the rear side of the wheel disc sinks into the fixing block and is connected with the fixing block into a whole, a first arc-shaped groove is formed in the side face of the wheel disc, and a horizontal second arc-shaped groove is formed in the right side face of the fixing block. A rotating block is arranged on the side of the wheel disc, a rotating shaft of the rotating block is also vertically arranged, the same-direction ends of the wheel disc and the rotating shaft of the rotating block are connected together through a connecting plate, a horizontal third arc-shaped groove is formed in the side face, facing the wheel disc, of the rotating block, and the first arc-shaped groove, the second arc-shaped groove and the third arc-shaped groove are the same in groove depth and located at the same height. A rotating handle is arranged on the rotating block, a clamp is arranged on the right side of the fixed block, and when the clamp is used for clamping, a clamping head of the clamp is just pressed on the pipeline in the second arc-shaped groove; the pipeline bending machine enables pipeline bending to be standardized and bending sizes to be unified, and is very suitable for batch production of bent pipelines.

Description

Technical Field

[0001] The utility model relates to a pipeline processing device, in particular to a pipeline bending device. Background Art

[0002] The basic structure of a gas chromatograph consists of two parts, namely the analysis unit and the display unit. The former mainly includes a gas source and a control metering device, a sample injection device, a thermostat and a chromatographic column. The latter mainly includes a calibrator and an automatic recorder. Stainless steel pipes are commonly used for gas transportation in gas chromatographs. Due to the complex internal structure of the gas chromatograph, in order to avoid conflicts between the pipes and its internal components, the pipes generally need to be bent. In the prior art, the stainless steel pipe is bent either by hand or by clamping one end with a clamping tool and manually bending the other end. Obviously, these two methods rely entirely on the feel of the hand to control the bending radius and bending angle. The bent pipes produced by this production method have inconsistent appearance and size, and are not suitable for mass standardized production. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a pipeline bending device, which can standardize pipeline bending and unify bending dimensions, and is very suitable for batch production of bent pipelines.

[0004] The technical solution of this utility model:

[0005] A pipe bending device comprises a horizontal base, a fixed block is fixedly installed on the base, a wheel disc is arranged on the front side of the fixed block, the rotating shaft of the wheel disc is arranged vertically, the rear side of the wheel disc is sunken into the fixed block and connected to the fixed block as a whole, the right side of the side of the wheel disc is tangent to the plane where the right side of the fixed block is located, a first arc groove is arranged on the side of the wheel disc, the first arc groove horizontally surrounds the side of the wheel disc, a horizontal second arc groove is arranged on the right side of the fixed block, a rotating block is arranged on the side of the wheel disc, and the rotating shaft of the rotating block is also arranged vertically The same-direction ends of the rotating shaft of the wheel disc and the rotating shaft of the rotating block are connected together by a horizontal connecting plate. A horizontal third arc groove is provided on the side of the rotating block facing the wheel disc. The groove depths of the first arc groove, the second arc groove and the third arc groove are the same and the first arc groove, the second arc groove and the third arc groove are located at the same height. A rotating handle is provided on the rotating block. A clamp is provided on the right side of the fixed block. The clamp is fixed on the base. The clamp head faces the second arc groove. When the clamp is clamped, the clamp head just presses on the pipe in the second arc groove.

[0006] A horizontal steel ruler is fixed on the base, the scale direction of the steel ruler is parallel to the direction of the second arc groove, the starting point of the scale of the steel ruler is aligned with the center line of the rotating shaft of the wheel, and a magnetic seat is arranged on the steel ruler; an angle scale is arranged around the upper surface of the wheel, and the starting point of the angle scale is on the right. The base is made of iron or steel.

[0007] Alternatively, a length scale is provided on the upper surface of the base, the direction of the length scale is parallel to the direction of the second arc groove, the starting point of the length scale is aligned with the center line of the rotating shaft of the wheel disc, the base is made of iron or steel, and a magnetic seat is provided on the length scale; an angle scale is provided around the upper surface of the wheel disc, and the starting point of the angle scale is on the right.

[0008] The first arc groove, the second arc groove and the third arc groove are all semicircular arc grooves; the rotating handle is a horizontal rod extending from the side of the rotating block facing away from the wheel disc; the clamp is a push-pull clamp; the fixed block is connected to the base through screws.

[0009] The magnetic seat can be used to block one end of the pipe to be folded, thereby limiting the size at which the pipe to be folded is bent; the angle scale can be used to indicate the arc of the bend; the clamp can fix the non-bending part of the pipe to be folded in the second arc groove to keep the pipe to be folded motionless, thereby facilitating the bending of the pipe to be folded; the rotating handle is used for manual bending.

[0010] A pipe bending device comprises a horizontal base, a fixed block is fixedly installed on the base, a wheel disc is arranged on the front side of the fixed block, the rotating shaft of the wheel disc is arranged vertically, the rear side of the wheel disc is sunken into the fixed block and connected to the fixed block as a whole, the right side of the side of the wheel disc is tangent to the plane where the right side of the fixed block is located, a first arc groove is arranged on the side of the wheel disc, the first arc groove horizontally surrounds the side of the wheel disc, a horizontal second arc groove is arranged on the right side of the fixed block, a rotating block is arranged on the side of the wheel disc, the rotating shaft of the rotating block is also arranged vertically, and the rotating shaft of the wheel disc and the rotating shaft of the rotating block are in the same direction The two ends are connected together by a horizontal connecting plate, a rotating wheel is installed on the rotating block, and the rotating shaft of the rotating wheel is also vertically arranged. A fourth arc groove is arranged on the side of the rotating wheel, and the fourth arc groove horizontally surrounds the side of the rotating wheel. The groove depths of the first arc groove, the second arc groove and the fourth arc groove are the same and the first arc groove, the second arc groove and the fourth arc groove are located at the same height. A rotating handle is arranged on the rotating block, and a clamp is arranged on the right side of the fixed block. The clamp is fixed on the base, and the clamp head is facing the second arc groove. When the clamp is clamped, the clamp head is pressed just on the pipe in the second arc groove.

[0011] The rotating wheel changes the friction between the pipe to be folded and the rotating block into sliding friction, thereby reducing the friction between the pipe to be folded and the rotating block, preventing the rotating block from driving the pipe to move during bending, and making the bending accuracy higher.

[0012] A horizontal steel ruler is fixed on the base, the scale direction of the steel ruler is parallel to the direction of the second arc groove, the starting point of the scale of the steel ruler is aligned with the center line of the rotating shaft of the wheel, and a magnetic seat is arranged on the steel ruler; an angle scale is arranged around the upper surface of the wheel, and the starting point of the angle scale is on the right. The base is made of iron or steel.

[0013] Alternatively, a length scale is provided on the upper surface of the base, the direction of the length scale is parallel to the direction of the second arc groove, the starting point of the length scale is aligned with the center line of the rotating shaft of the wheel disc, the base is made of iron or steel, and a magnetic seat is provided on the length scale; an angle scale is provided around the upper surface of the wheel disc, and the starting point of the angle scale is on the right.

[0014] The first arc groove, the second arc groove and the fourth arc groove are all semicircular arc grooves; the rotating handle is a horizontal rod extending from the side of the rotating block facing away from the wheel disc; the clamp is a push-pull clamp; the fixed block is connected to the base through screws.

[0015] The method of using the pipe bending device is as follows: first turn off the switch of the magnetic base, place the magnetic base at the required length position on the steel ruler (or length scale), then turn on the switch of the magnetic base, so that the magnetic base is fixedly attracted to the steel ruler (or base), and then place the pipe to be folded in the second arc groove and pass it between the wheel and the rotating block, so that one end of the pipe to be folded is against the magnetic base, and at the same time, the clamp is clamped to fix the pipe to be folded, and the pipe can be bent by rotating the rotating handle at this time. The bending angle can be determined according to the angle scale on the wheel. When making the next bend, the same operation is performed, and only the magnetic base needs to be adjusted to the required position.

[0016] Beneficial effects of the utility model:

[0017] 1. The utility model realizes the bending of the pipe by the joint action of the fixed block, the wheel and the rotating block. The purpose of bending the preset angle is achieved by cooperating with the angle scale on the wheel. The radius of the wheel determines the preset bending radius. The purpose of bending the preset length is achieved by cooperating with the steel ruler (or length scale) and the magnetic seat. Therefore, the utility model standardizes the pipe bending and unifies the bending size, which is very suitable for mass production of bent pipes.

[0018] 2. The fixed block of the utility model is connected to the base by screws. When a different bending radius is required, the fixed block can be removed from the base and replaced with a fixed block, a wheel and a rotating block of a corresponding size. It is very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the pipe bending device (viewing angle 1);

[0020] Figure 2It is a three-dimensional structural schematic diagram of the pipe bending device (viewing angle 2);

[0021] Figure 3 It is one of the three-dimensional enlarged structural diagrams of the positional relationship between the fixed block, the wheel disc and the rotating block;

[0022] Figure 4 This is the second three-dimensional enlarged structural diagram of the positional relationship between the fixed block, the wheel disc and the rotating block. DETAILED DESCRIPTION

[0023] Embodiment 1:

[0024] See also Figure 1 to Figure 3 In the figure, the pipe bending device includes a horizontal base 1, a fixed block 2 is fixedly installed on the base 1, a wheel disc 3 is arranged on the front side of the fixed block 2, a rotating shaft 4 of the wheel disc 3 is arranged vertically, the rear side of the wheel disc 3 is sunken into the fixed block 2 and connected to the fixed block 2 as a whole, the right side of the side of the wheel disc 3 is tangent to the plane where the right side of the fixed block 2 is located, a first arc groove 5 is arranged on the side of the wheel disc 3, the first arc groove 5 horizontally surrounds the side of the wheel disc 3, a horizontal second arc groove 6 is arranged on the right side of the fixed block 2, a rotating block 7 is arranged on the side of the wheel disc 3, and the rotating shaft 8 of the rotating block 7 is also arranged vertically, and the rotating shaft of the wheel disc 3 4 and the same-direction ends of the rotating shaft 8 of the rotating block 7 are connected together by a horizontal connecting plate 9. A horizontal third arc groove 10 is provided on the side of the rotating block 7 facing the wheel disc 3. The groove depths of the first arc groove 5, the second arc groove 6 and the third arc groove 10 are the same and the first arc groove 5, the second arc groove 6 and the third arc groove 10 are located at the same height. A rotating handle 11 is provided on the rotating block 7. A clamp 12 is provided on the right side of the fixed block 2. The clamp 12 is fixed on the base 1. The clamp head 13 of the clamp 12 faces the second arc groove 6. When the clamp 12 is clamped, the clamp head 13 of the clamp 12 is just pressed on the pipe in the second arc groove 6.

[0025] A horizontal steel ruler 14 is fixed on the base 1, the scale direction of the steel ruler 14 is parallel to the direction of the second arc groove 6, the starting point of the scale of the steel ruler 14 is aligned with the center line of the rotating shaft 4 of the wheel 3, and a magnetic seat 15 is arranged on the steel ruler 14; an angle scale 16 is arranged around the upper surface of the wheel 3, and the starting point of the angle scale 16 is on the right. The base 1 is made of iron.

[0026] Alternatively, the steel ruler 14 may not be used, and a length scale may be directly drawn on the upper surface of the base 1, with the direction of the length scale parallel to the direction of the second arc groove 6, the starting point of the length scale aligned with the center line of the rotating shaft 4 of the wheel disc 3, and the magnetic base 15 placed directly on the length scale.

[0027] The first arc groove 5, the second arc groove 6 and the third arc groove 10 are all semicircular arc grooves; the rotating handle 11 is a horizontal rod extending from the side of the rotating block 7 facing away from the wheel disc 3; the clamp 12 is a push-pull clamp; the fixed block 2 is connected to the base 1 by screws.

[0028] The magnetic seat 15 can be used to block one end of the pipe to be folded, thereby limiting the size at which the pipe to be folded is bent; the angle scale 16 can be used to indicate the curvature of the bend; the clamp 12 can fix the non-bending part of the pipe to be folded in the second arc groove 6 to keep the pipe to be folded motionless, thereby facilitating the bending of the pipe to be folded; the rotating handle 11 is used for manual bending.

[0029] The method of using the pipe bending device is as follows: first turn off the switch of the magnetic base 15, place the magnetic base 15 at the required length position on the steel ruler 14 (or length scale), then turn on the switch of the magnetic base 15, so that the magnetic base 15 is fixedly attracted to the steel ruler 14 (or base 1), and then place the pipe to be folded in the second arc groove 6 and pass it between the wheel disc 3 and the rotating block 7, so that one end of the pipe to be folded is against the magnetic base 15, and at the same time, the clamp 12 is clamped to fix the pipe to be folded, and at this time, the rotating handle 11 can be rotated to bend the pipe, and the bending angle can be determined according to the angle scale 16 on the wheel disc 3. When making the next bend, the same operation is performed, and only the magnetic base 15 needs to be adjusted to the required position.

[0030] Embodiment 2:

[0031] See also Figure 4 , the same parts as those in the first embodiment are not described again, and the different parts are as follows: a rotating wheel 17 is mounted on the rotating block 7, and the rotating shaft 18 of the rotating wheel 17 is also vertically arranged, and a fourth arc groove 19 is arranged on the side of the rotating wheel 17, and the fourth arc groove 19 horizontally surrounds the side of the rotating wheel 17, and the groove depths of the first arc groove 5, the second arc groove 6 and the fourth arc groove 19 are the same and the first arc groove 5, the second arc groove 6 and the fourth arc groove 19 are located at the same height, and the fourth arc groove 19 is also a semicircular arc groove.

[0032] The rotating wheel 17 converts the friction between the pipe to be folded and the rotating block 7 into sliding friction, thereby reducing the friction between the pipe to be folded and the rotating block 7, preventing the rotating block 7 from driving the pipe to move during bending, and making the bending accuracy higher.

Claims

1. A pipe bending device, characterized in that: The invention comprises a horizontal base, a fixed block is fixedly installed on the base, a wheel disc is arranged on the front side of the fixed block, the rotating shaft of the wheel disc is arranged vertically, the rear side of the wheel disc is sunken into the fixed block and connected to the fixed block as a whole, the right side of the side of the wheel disc is tangent to the plane where the right side of the fixed block is located, a first arc groove is arranged on the side of the wheel disc, the first arc groove horizontally surrounds the side of the wheel disc, a horizontal second arc groove is arranged on the right side of the fixed block, a rotating block is arranged on the side of the wheel disc, the rotating shaft of the rotating block is also arranged vertically, and the wheel disc is provided with a plurality of rotating blocks. The same-direction ends of the rotating shaft and the rotating block are connected together by a horizontal connecting plate. A horizontal third arc groove is provided on the side of the rotating block facing the wheel disc. The groove depths of the first arc groove, the second arc groove and the third arc groove are the same and the first arc groove, the second arc groove and the third arc groove are located at the same height. A rotating handle is provided on the rotating block. A clamp is provided on the right side of the fixed block. The clamp is fixed on the base, and the clamp head faces the second arc groove. When the clamp is clamped, the clamp head just presses on the pipe in the second arc groove.

2. The pipe bending device according to claim 1 is characterized in that: A horizontal steel ruler is fixed on the base, the direction of the scale on the steel ruler is parallel to the direction of the second arc groove, the starting point of the scale on the steel ruler is aligned with the center line of the rotating shaft of the wheel disc, and a magnetic seat is arranged on the steel ruler; angle scales are arranged around the upper surface of the wheel disc, and the starting point of the angle scale is on the right.

3. The pipe bending device according to claim 2 is characterized in that: The base is made of iron or steel.

4. The pipe bending device according to claim 1 is characterized in that: The upper surface of the base is provided with a length scale, the direction of the length scale is parallel to the direction of the second arc groove, the starting point of the length scale is aligned with the center line of the rotating shaft of the wheel disc, the base is made of iron or steel, and a magnetic seat is provided on the length scale; the upper surface of the wheel disc is provided with an angle scale around it, and the starting point of the angle scale is on the right.

5. The pipe bending device according to claim 1, characterized in that: The first arc groove, the second arc groove and the third arc groove are all semicircular arc grooves; the rotating handle is a horizontal rod extending from the side of the rotating block facing away from the wheel disc; the clamp is a push-pull clamp; the fixed block is connected to the base through screws.

6. A pipe bending device, characterized in that: The invention comprises a horizontal base, a fixed block is fixedly installed on the base, a wheel disc is arranged on the front side of the fixed block, the rotating shaft of the wheel disc is arranged vertically, the rear side of the wheel disc is sunken into the fixed block and connected to the fixed block as a whole, the right side of the side of the wheel disc is tangent to the plane where the right side of the fixed block is located, a first arc groove is arranged on the side of the wheel disc, the first arc groove horizontally surrounds the side of the wheel disc, a horizontal second arc groove is arranged on the right side of the fixed block, a rotating block is arranged on the side of the wheel disc, the rotating shaft of the rotating block is also arranged vertically, and the same-direction ends of the rotating shaft of the wheel disc and the rotating shaft of the rotating block are connected by a A horizontal connecting plate is connected together, a rotating wheel is installed on the rotating block, and the rotating shaft of the rotating wheel is also vertically arranged. A fourth arc groove is arranged on the side of the rotating wheel, and the fourth arc groove horizontally surrounds the side of the rotating wheel. The groove depths of the first arc groove, the second arc groove and the fourth arc groove are the same and the first arc groove, the second arc groove and the fourth arc groove are located at the same height. A rotating handle is arranged on the rotating block, and a clamp is arranged on the right side of the fixed block. The clamp is fixed on the base, and the clamp head faces the second arc groove. When the clamp is clamped, the clamp head just presses on the pipe in the second arc groove.

7. The pipe bending device according to claim 6, characterized in that: A horizontal steel ruler is fixed on the base, the direction of the scale on the steel ruler is parallel to the direction of the second arc groove, the starting point of the scale on the steel ruler is aligned with the center line of the rotating shaft of the wheel disc, and a magnetic seat is arranged on the steel ruler; angle scales are arranged around the upper surface of the wheel disc, and the starting point of the angle scale is on the right.

8. The pipe bending device according to claim 7, characterized in that: The base is made of iron or steel.

9. The pipe bending device according to claim 6, characterized in that: The upper surface of the base is provided with a length scale, the direction of the length scale is parallel to the direction of the second arc groove, the starting point of the length scale is aligned with the center line of the rotating shaft of the wheel disc, the base is made of iron or steel, and a magnetic seat is provided on the length scale; the upper surface of the wheel disc is provided with an angle scale around it, and the starting point of the angle scale is on the right.

10. The pipe bending device according to claim 6, characterized in that: The first arc groove, the second arc groove and the fourth arc groove are all semicircular arc grooves; the rotating handle is a horizontal rod extending from the side of the rotating block facing away from the wheel disc; the clamp is a push-pull clamp; the fixed block is connected to the base through screws.

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