Angle-adjustable pipe bending device

Abstract

The utility model relates to the technical field of pipe bending processing, and discloses an angle-adjustable pipe bending device which comprises a platform, a rotating frame rotationally installed on the platform, a holding rod fixedly installed on the rotating frame, a positioning die wheel fixedly installed on the rotating frame through a bolt, an arc bending die wheel installed on the rotating frame and a connecting block fixedly installed at the bottom of the rotating frame. A sliding groove for the connecting block to slide is formed in the platform, a rotating ring is rotationally installed in the sliding groove, an installation block is fixedly installed on the rotating ring, and an angle recognition mechanism and a limiting mechanism are arranged on the platform and the installation block. The mounting block is arranged on the moving path of the connecting block, when the rotating frame drives the connecting block to slide along the sliding groove, the mounting block can prevent the connecting block from continuing to advance when reaching the preset angle, and therefore the bending angle is accurately controlled.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pipe bending device, and more particularly to an angle-adjustable pipe bending device. BACKGROUND

[0002] In pipeline engineering, a bend is an important component for changing the direction of fluid or connecting pipeline components on different axes. Traditional bends are usually fixed-angle bends that are pre-manufactured in a factory according to specific angle requirements. However, during actual installation, due to changes in site conditions or design adjustments, it is often necessary to bend the pipeline on site to adapt to different installation requirements. At this time, the traditional fixed-angle bend may not meet the precise angle adjustment requirements, resulting in increased construction difficulty, reduced installation efficiency, and possibly additional cost.

[0003] The patent with the publication number CN220049568U discloses a manual pipe bending machine, which includes an operating frame, a positioning platform, a rotating disc, an arc block, a positioning die wheel, and a bending die wheel. The positioning platform is L-shaped and fixed to the top wall of the operating frame with a gap between the positioning platform and the operating frame. The rotating disc is rotatably connected to the operating frame, and at least part of the rotating disc is embedded below the positioning platform. The arc block is connected to the positioning platform and has a first positioning groove on its side wall. The positioning die wheel is connected to the positioning platform and has a second positioning groove on its outer wall. The bending die wheel is connected to the rotating disc and has a third positioning groove on its outer wall, which is opposite the second positioning groove.

[0004] However, the above-mentioned device has the following problems during use: During manual operation, there is a lack of precise angle control tools or methods, and it is difficult to bend the pipe to the predetermined angle accurately, which may result in inaccurate bending angle and adversely affect the actual performance and use effect of the device. UTILITY MODEL CONTENTS

[0005] The utility model aims to solve the problems in the prior art and provides an angle-adjustable pipe bending device that can stop rotating when the preset angle is reached, thereby achieving precise control of the bending angle.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides an angle adjustable elbow device, including platform, the rotary frame is rotatably installed on platform, the handle is fixedly installed on rotary frame, the positioning mould wheel is fixedly installed through bolt on rotary frame, the bending mould wheel is installed on rotary frame, the connecting block is fixedly installed on the bottom of rotary frame, the sliding slot is seted up on platform and can be slid for connecting block, the rotary ring is rotatably installed in the inside of sliding slot, the mounting block is fixedly installed on rotary ring, and the angle identification mechanism and the limiting mechanism are arranged on platform and mounting block.

[0008] Preferably, the mounting block can hinder the rotation path of the connecting block.

[0009] Preferentially, the angle identification mechanism comprises an angle scale mark and an angle indicating mark, the angle scale mark is set on the periphery of the sliding slot, the angle indicating mark is fixedly installed on the mounting block, and the angle indicating mark is matched with the angle scale mark.

[0010] Preferentially, the limiting mechanism comprises a limiting inner gear ring and a limiting gear block, the limiting inner gear ring is fixedly installed on the platform, the limiting gear block is slidably installed on the angle indicating mark, a pulling rod is fixedly installed on the limiting gear block, the pulling rod is slidably installed on the angle indicating mark, a return spring is fixedly installed on the limiting gear block, and the other end of the return spring is fixedly installed on the angle indicating mark.

[0011] Preferentially, the gear slot on the limiting inner gear ring is matched with the gear on the limiting gear block, and the limiting gear block can be completely entered into the limiting inner gear ring or completely separated from the limiting inner gear ring.

[0012] Preferentially, a sound-emitting plate is embedded on the surface of the mounting block in contact with the connecting block, and a knocking block is fixedly installed on the corresponding position of the connecting block.

[0013] Preferentially, a mounting frame is slidably installed on the rotary frame, the mounting frame is fixedly connected with the bending mould wheel through bolts, and a driving mechanism is arranged in the mounting frame.

[0014] Preferentially, the driving mechanism comprises a threaded rod, the threaded rod is rotatably installed on the rotary frame, a knob is fixedly installed on one end of the threaded rod penetrating through the rotary frame, a nut pair is installed on the threaded rod through threads, and the nut pair is fixedly connected with the mounting frame.

[0015] Preferentially, a positioning block is fixedly installed on the platform, and when the rotary frame abuts against the positioning block, the connecting block corresponds to the zero scale point on the angle scale mark.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] (1) The utility model discloses a limiting inner gear ring and the precise cooperation of limiting toothed block, and the pipe bending device can ensure that the mounting block stably stays at the set angle position, thereby effectively limiting the moving path of the connecting block, when the rotary frame drives the connecting block to slide along the sliding groove, the mounting block will prevent its continuous advance when reaching the preset angle, so that the rotary frame can only rotate to the preset angle, without needing to carry out the synchronous observation activity, can ensure that each operation can accurately control the pipe bending to the required angle, and the efficiency is higher, convenient to use.

[0018] (2) The utility model discloses the inlaying sound board on the contact surface of mounting block and connecting block, and the knocking block on the connecting block can emit clear voice prompt when reaching the preset bending angle, not only provides the immediate feedback for the operator, enhances the safety and accuracy of operation, but also can provide the significant operation guidance in the noisy working environment, further avoids the risk of excessive bending.

[0019] (3) The utility model discloses in order to adapt to the pipeline of different diameters, the device is equipped with adjustable arc bending mould wheel and positioning mould wheel, drives the threaded rod through the rotation knob, can easily adjust the distance between both, to match the pipeline demand of different specifications, and this flexibility makes the equipment can handle the pipeline in a certain size range without changing the mould, greatly improves the work efficiency and application range. DRAWINGS

[0020] Figure 1 It is a kind of angle adjustable pipe bending device schematic drawing for the utility model puts forward;

[0021] Figure 2 It is a kind of angle adjustable pipe bending device positioning block installation position schematic drawing for the utility model puts forward;

[0022] Figure 3 It is a kind of angle adjustable pipe bending device angle identification mechanism schematic drawing for the utility model puts forward;

[0023] Figure 4 It is a kind of angle adjustable pipe bending device limiting mechanism installation position schematic drawing for the utility model puts forward;

[0024] Figure 5 It is a kind of angle adjustable pipe bending device limiting mechanism schematic drawing for the utility model puts forward;

[0025] Figure 6 It is a kind of angle adjustable pipe bending device arc bending mould wheel adjustment principle schematic drawing for the utility model puts forward;

[0026] Figure 7 It is a kind of angle adjustable pipe bending device driving mechanism schematic drawing for the utility model puts forward.

[0027] In the figure: 1, platform; 2, sliding groove; 3, angle scale mark; 4, rotating frame; 5, positioning die wheel; 6, mounting frame; 7, arc bending die wheel; 8, handle; 9, positioning block; 10, rotating ring; 11, limit inner gear ring; 12, angle indicating mark; 13, mounting block; 14, sound emitting plate; 15, pulling rod; 16, limit tooth block; 17, return spring; 18, connecting block; 19, knocking block; 20, knob; 21, threaded rod; 22, nut pair. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0029] Please refer to Figures 1 to 7 An angle-adjustable pipe bending device comprises a platform 1, which serves as the base support of the whole device, ensures stable installation and operation of all components, and provides a stable working surface for bearing the rotating frame 4 and other related components.

[0030] The rotating frame 4 is rotatably installed on the platform 1 and is allowed to freely rotate around the central axis through bearings or similar rotating devices.

[0031] The handle 8 is fixedly installed on the rotating frame 4 and provides a convenient manual operation point for the user to apply torque to rotate the rotating frame 4.

[0032] The positioning die wheel 5 is fixedly installed on the rotating frame 4 by bolts, and the arc bending die wheel 7 is installed on the rotating frame 4. The positioning die wheel 5 is fixed on the rotating frame 4 to guide the pipe into the correct bending path, and the arc bending die wheel 7 is responsible for the actual bending operation of the pipe.

[0033] The distance between the positioning die wheel 5 and the arc bending die wheel 7 can be adjusted according to the size of the pipe, and both the positioning die wheel 5 and the arc bending die wheel 7 can be disassembled, so as to conveniently install the corresponding range of wheel bodies according to the size of the pipe.

[0034] The connecting block 18 is fixedly installed at the bottom of the rotating frame 4, and the sliding groove 2 is formed on the platform 1 to allow the connecting block 18 to slide. The connecting block 18 is connected with the rotating frame 4 and slides along the sliding groove 2, so as to ensure that the movement trajectory of the rotating frame 4 is controlled.

[0035] The rotating ring 10 is rotatably installed in the sliding groove 2, and the mounting block 13 is fixedly installed on the rotating ring 10.

[0036] The platform 1 and the mounting block 13 are provided with an angle identification mechanism and a limiting mechanism, the angle identification mechanism can accurately know the angle of the mounting block 13, the limiting mechanism can make the mounting block 13 and the rotating ring 10 unable to move, and then the mounting block 13 stably stays at the corresponding position to shield the movement path of the connecting block 18, so that the connecting block 18 can only move to the angle, thereby realizing the bending pipe angle control activity.

[0037] The mounting block 13 can hinder the rotating path of the connecting block 18.

[0038] The angle identification mechanism comprises an angle scale mark 3 and an angle indicating mark 12, the angle scale mark 3 is opened on the periphery of the sliding groove 2, the angle indicating mark 12 is fixedly installed on the mounting block 13, the angle indicating mark 12 is matched with the angle scale mark 3, and the angle indicating mark 12 moves with the rotation of the mounting block 13 and points to the corresponding angle scale, thereby limiting the maximum movable angle of the rotating frame 4, and preferably, the specific density and the number density of the angle scale mark 3 can be adjusted according to the accuracy requirement, and the figure is only schematic.

[0039] The limiting mechanism comprises a limiting inner gear ring 11 and a limiting tooth block 16, the limiting inner gear ring 11 is fixedly installed on the platform 1, the limiting tooth block 16 is slidingly installed on the angle indicating mark 12, a pulling rod 15 is fixedly installed on the limiting tooth block 16, the pulling rod 15 is slidingly installed on the angle indicating mark 12, a reset spring 17 is fixedly installed on the limiting tooth block 16, and the other end of the reset spring 17 is fixedly installed on the angle indicating mark 12.

[0040] The tooth groove on the limiting inner gear ring 11 is matched with the tooth on the limiting tooth block 16, and the limiting tooth block 16 can completely enter the limiting inner gear ring 11 or completely separate from the limiting inner gear ring 11.

[0041] When the pulling rod 15 is moved upward, the limiting tooth block 16 rises, at this time, the reset spring 17 is compressed, the limiting tooth block 16 is separated from the limiting inner gear ring 11, so that the rotating ring 10 and the mounting block 13 can smoothly move and change the angle, when the mounting block 13 moves to the ideal angle, the pulling rod 15 is released, and under the action of the reset spring 17, the limiting tooth block 16 automatically enters the inside of the limiting inner gear ring 11 at the corresponding position, so that the mounting block 13 cannot move, and when the connecting block 18 moves to the position, the mounting block 13 prevents the connecting block 18 from continuing to move, and the operator can know that the bending pipe is bent to the required angle at this time.

[0042] Preferably, the density of the limiting inner gear ring 11 and the limiting tooth block 16 can be adjusted as required, but they should be matched, and the higher the density, the higher the accuracy, and the figure is only schematic and is not limited.

[0043] The sound emitting plate 14 is inlaid and mounted on the surface of the mounting block 13 in contact with the connecting block 18, and the knocking block 19 is fixedly mounted at the corresponding position of the connecting block 18, so that when the mounting block 13 contacts the connecting block 18, the knocking block 19 will knock the sound emitting plate 14 to emit sound, reminding the operator that a specific position has been reached, and further enabling the operator to know that the pipe has been bent to the required angle.

[0044] The mounting frame 6 is slidably mounted on the rotating frame 4, and the bending arc die wheel 7 is fixedly connected to the mounting frame 6 through bolts, and the driving mechanism is arranged in the mounting frame 6, so that the mounting frame 6 can slide on the rotating frame 4 to adjust the distance between the bending arc die wheel 7 and the positioning die wheel 5, and the bending activity of the pipe within a certain diameter range is suitable.

[0045] The driving mechanism comprises a threaded rod 21 rotatably mounted on the rotating frame 4, one end of the threaded rod 21 penetrating through the rotating frame 4 and being fixedly provided with a knob 20, and a nut pair 22 being threadedly mounted on the threaded rod 21 and being fixedly connected with the mounting frame 6, so that the nut pair 22 is driven to move along the threaded rod 21 by rotating the threaded rod 21 through the knob 20, and the mounting frame 6 is driven to move together with the bending arc die wheel 7 to approach or move away from the positioning die wheel 5, so that the pipe is pressed to ensure the bending effect.

[0046] The positioning block 9 is fixedly mounted on the platform 1, and when the rotating frame 4 abuts against the positioning block 9, the connecting block 18 corresponds to the zero scale point on the angle scale mark 3, so that the positioning block 9 provides a reliable starting position for the user to ensure that each operation starts from zero, thereby ensuring the accuracy of the bending angle.

[0047] The working process of the utility model is as follows: firstly, the bending angle control activity is carried out, so that the pulling rod 15 moves upward, the limiting tooth block 16 rises, at this time, the reset spring 17 is compressed, the limiting tooth block 16 is separated from the limiting internal gear ring 11, so that the rotating ring 10 and the mounting block 13 can smoothly move to change the angle, when the mounting block 13 moves to the ideal angle, the pulling rod 15 is released, and under the action of the reset spring 17, the limiting tooth block 16 automatically enters the inside of the limiting internal gear ring 11, so that the mounting block 13 cannot move, at this time, the angle indicating mark 12 corresponds to the angle that the pipe needs to be bent on the angle scale mark 3.

[0048] Then, the rotating frame 4 is at the initial position (i.e., the rotating frame 4 abuts against the positioning block 9), at this time, the connecting block 18 will be aligned with the zero scale point on the angle scale mark 3, so that each operation starts from zero, the pipe to be bent is placed between the positioning die wheel 5 and the bending arc die wheel 7, the distance between the two is adjusted according to the diameter of the pipe, the threaded rod 21 is driven by rotating the knob 20, the mounting frame 6 slides and adjusts the position of the bending arc die wheel 7.

[0049] The operator holds the handle 8 to exert torque, so that the rotating frame 4 rotates around the central axis, and the connecting block 18 slides along the sliding groove 2, when the connecting block 18 contacts the mounting block 13, the mounting block 13 prevents the connecting block 18 on the rotating frame 4 from continuing to rotate, so that the bending angle is controlled, and the sound board 14 and the knocking block 19 will give a sound prompt when reaching the preset angle, further reminding that the pipe bending activity has been completed.

[0050] After the bending is completed, the handle 8 is loosened, and the bent pipe is removed, when it is still at this angle, it can be directly placed into the pipe for the next bending activity, when the bending angle changes, the subsequent bending activity can be carried out after the position of the mounting block 13 is adjusted.

[0051] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An angle-adjustable pipe bending device, comprising a platform (1), a rotating frame (4) rotatably mounted on the platform (1), a handle (8) fixedly mounted on the rotating frame (4), and a positioning mold wheel (5) fixedly mounted on the rotating frame (4) by bolts, characterized in that, A bending mold wheel (7) is installed on the rotating frame (4). A connecting block (18) is fixedly installed at the bottom of the rotating frame (4). A slide groove (2) is provided on the platform (1) for the connecting block (18) to slide. A rotating ring (10) is rotatably installed inside the slide groove (2). An installation block (13) is fixedly installed on the rotating ring (10). An angle recognition mechanism and a limiting mechanism are provided on the platform (1) and the installation block (13).

2. The angle-adjustable pipe bending device according to claim 1, characterized in that, The mounting block (13) can obstruct the rotation path of the connecting block (18).

3. The angle-adjustable pipe bending device according to claim 1, characterized in that, The angle recognition mechanism includes an angle scale (3) and an angle indicator (12). The angle scale (3) is located on the periphery of the slide groove (2), and the angle indicator (12) is fixedly installed on the mounting block (13). The angle indicator (12) is compatible with the angle scale (3).

4. The angle-adjustable pipe bending device according to claim 1, characterized in that, The limiting mechanism includes a limiting inner gear ring (11) and a limiting gear block (16). The limiting inner gear ring (11) is fixedly installed on the platform (1). The limiting gear block (16) is slidably installed on the angle indicator (12). A pull rod (15) is fixedly installed on the limiting gear block (16). The pull rod (15) is slidably installed on the angle indicator (12). A return spring (17) is fixedly installed on the limiting gear block (16). The other end of the return spring (17) is fixedly installed on the angle indicator (12).

5. The angle-adjustable pipe bending device according to claim 4, characterized in that, The tooth grooves on the limiting inner tooth ring (11) are matched with the teeth on the limiting tooth block (16), and the limiting tooth block (16) can be completely inserted into the limiting inner tooth ring (11) or completely separated from the limiting inner tooth ring (11).

6. The angle-adjustable pipe bending device according to claim 1, characterized in that, A sound-emitting plate (14) is inlaid on the surface of the mounting block (13) that contacts the connecting block (18), and a striking block (19) is fixedly installed on the connecting block (18) at the corresponding position.

7. The angle-adjustable pipe bending device according to claim 1, characterized in that, The rotating frame (4) is slidably mounted with a mounting frame (6), which is fixedly connected to the bending mold wheel (7) by bolts. The mounting frame (6) is equipped with a drive mechanism inside.

8. The angle-adjustable pipe bending device according to claim 7, characterized in that, The drive mechanism includes a threaded rod (21), which is rotatably mounted on a rotating frame (4). One end of the threaded rod (21) passes through the rotating frame (4) and is fixedly mounted with a knob (20). A nut pair (22) is threadedly mounted on the threaded rod (21) and is fixedly connected to the mounting frame (6).

9. The angle-adjustable pipe bending device according to claim 1, characterized in that, A positioning block (9) is fixedly installed on the platform (1). When the rotating frame (4) abuts against the positioning block (9), the connecting block (18) corresponds to the zero mark on the angle scale (3).

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