Manual hydraulic pipe bending machine suitable for short size

Abstract

The utility model relates to the technical field of pipe bending machines, and provides a manual hydraulic pipe bending machine suitable for a short size, which comprises a support, a hydraulic cylinder is mounted on the support, a handle is connected onto the hydraulic cylinder, a connector is mounted at the output end of the hydraulic cylinder, a bending die is mounted at one end of the connector, and the bending die is connected with the handle. A fixed limiting plate is installed at the bottom of one end of the support, a movable limiting plate is hinged to the top of one end of the support, a plurality of positioning holes are symmetrically formed in the fixed limiting plate and the movable limiting plate, and pipe benders are symmetrically installed between the movable limiting plate and the fixed limiting plate. By means of the adjusting structure, the locking bolt is screwed into the fixing holes in different positions, the purpose of adjusting the height of the pressing block is achieved, the pressing block can be attached to the movable limiting plate conveniently, the pressing block moves in the direction of the sliding groove when a pipe is bent, the purpose of pressing different positions of the movable limiting plate is achieved, and the pipe bending efficiency is improved. And the condition that the movable limiting plate tilts and moves is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pipe bender, especially to a manual hydraulic pipe bender suitable for short size. BACKGROUND

[0002] With the continuous development of industry, the market of pipe bender is also expanding, and the pipe bender is a machine for bending pipe, including numerical control pipe bender, hydraulic pipe bender, etc., wherein the hydraulic pipe bender can be divided into automatic hydraulic pipe bender and manual hydraulic pipe bender, and the manual hydraulic pipe bender is a machine that injects hydraulic oil into the hydraulic cylinder through a manual pump to push the piston rod to shrink the pipe bending mold, so as to bend the pipe into the required shape.

[0003] Therefore, the patent with the authorized announcement number CN206305259U discloses a small manual hydraulic pipe bender, which comprises a supporting leg, a fixed support, a movable support, a bending mold, a handle, a hydraulic cylinder, a hydraulic top rod built-in the hydraulic cylinder, a pressure relief valve arranged on the hydraulic cylinder, a handle arranged on the hydraulic cylinder, a fixed support arranged above the supporting leg, a bending mold arranged between the fixed support and the movable support, a connecting lug plate arranged on the movable support, a connecting pin arranged between the movable support and the hydraulic cylinder, a connecting hole corresponding to the bending radius arranged on the fixed support and the movable support, and an arc-shaped mold and a square mold arranged on the bending mold.

[0004] The existing manual hydraulic pipe bender is prone to be moved up when in use, and needs to be manually pressed down during pipe bending, which is inconvenient to use and has poor practicability. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a manual hydraulic pipe bender suitable for short size, which solves the defect that the existing manual hydraulic pipe bender is difficult to limit the movable limiting plate.

[0006] To solve the above technical problems, the utility model provides technical scheme as follows: A kind of manual hydraulic pipe bender suitable for short size, including support, hydraulic cylinder is installed on the support, and handle is connected on the hydraulic cylinder, the output end of the hydraulic cylinder is installed with connector, one end of the connector is installed with bending mould, the bottom of the one end of the support is installed with fixed limiting plate, the top of the one end of the support is hinged with movable limiting plate, a plurality of positioning holes are symmetrically arranged on the fixed limiting plate and movable limiting plate, pipe bender is symmetrically installed between the movable limiting plate and fixed limiting plate, universal wheel is installed on the bottom end of the fixed limiting plate and hydraulic cylinder, support structure is arranged on the side of the universal wheel, pressing block is installed on the movable limiting plate, measuring structure is arranged on one end of the pressing block, adjusting structure for adjusting the height of the pressing block is arranged on the other end of the pressing block, the adjusting structure includes vertical rod installed on the connector, connecting rod installed on the vertical rod, the one end of the connecting rod is fixedly connected with the pressing block, locking bolt symmetrically installed on the two sides of the vertical rod and fixed hole opened on the surface of the vertical rod.

[0007] Preferably, the support structure includes support feet, adjusting screws, adjusting screw holes, and fixed rods, the fixed rods are respectively installed on the bottom end of the fixed limiting plate and the hydraulic cylinder on one side of the universal wheel, adjusting screws are installed on the bottom end of the fixed rods, support feet are installed on the bottom end of the adjusting screws, adjusting screw holes are opened on the inner wall of the fixed rods and matched with the adjusting screws.

[0008] Through the above structure, a certain supporting effect can be achieved, and the overall stability of the manual hydraulic pipe bender during use is improved.

[0009] Preferably, anti-skid patterns are installed on the lower surfaces of the support feet.

[0010] Through the above structure, the friction between the support feet and the ground is improved, and the stability is enhanced.

[0011] Preferably, the fixed holes are a plurality of and equally spaced on the surface of the vertical rod.

[0012] Through the above structure, the pressing block can be fixed at different height positions and matched with the movable limiting plate.

[0013] Preferably, the measuring structure includes a limiting groove, a scale, a limiting rod, a positioning rod, and a connecting block, the connecting block is installed on one end of the pressing block, the limiting rod is installed on one end of the connecting block, the positioning rod is installed on one end of the limiting rod, the limiting groove is opened on the movable limiting plate, and the scale is installed on the movable limiting plate on both sides of the limiting groove.

[0014] Through the above structure, the bending degree of the bent pipe can be positioned and measured.

[0015] Preferably, the limiting rod extends into the connecting block and forms a telescopic structure with the spring inside the connecting block.

[0016] By the above structure, the positioning rod contacts with the pipe body with different diameters, and the positioning effect is improved.

[0017] Preferably, the upper surface of the movable limiting plate is provided with a sliding groove at both ends.

[0018] By the above structure, the pressing block can be limited, and the stability during movement is improved.

[0019] The manual hydraulic pipe bender suitable for short size has the advantages that:

[0020] The height of the pressing block is adjusted by the adjusting structure, and the pressing block is attached to the movable limiting plate. The movable limiting plate is pressed by the pressing block, and the movable limiting plate is prevented from moving up during pipe bending. The measuring structure can position and measure the bending degree of the pipe. The supporting structure can support, and the stability of the manual hydraulic pipe bender during use is improved.

[0021] The locking bolt is screwed into the fixed hole at different positions by the adjusting structure, the height of the pressing block is adjusted, the pressing block is attached to the movable limiting plate, the pressing block moves along the direction of the sliding groove during pipe bending, the movable limiting plate is pressed at different positions, and the movable limiting plate is prevented from moving up;

[0022] The connecting block drives the positioning rod to move when the pressing block moves by the measuring structure. The positioning rod can position the bending degree of the pipe. The bending degree of the pipe can be determined by checking the scale during pipe bending, and the use effect is improved.

[0023] The supporting foot is rotated, and the adjusting screw moves along the direction of the adjusting screw hole by the supporting structure. The height of the supporting foot is adjusted, the supporting foot is in contact with the ground, and the stability of the manual hydraulic pipe bender during use is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a front view structural schematic diagram of the utility model;

[0025] Figure 2 It is a top view structural schematic diagram of the utility model;

[0026] Figure 3 It is a front view structural schematic diagram of the adjusting structure of the utility model;

[0027] Figure 4 It is a front view structural schematic diagram of the supporting structure of the utility model;

[0028] Figure 5 The utility model discloses a Figure 3 The enlarged structure schematic diagram of middle A.

[0029] The reference signs in the drawing are explained: 1, movable limiting plate; 2, positioning hole; 3, pipe bender; 4, support structure; 401, support foot; 402, adjusting screw; 403, adjusting screw hole; 404, fixed rod; 5, universal wheel; 6, fixed limiting plate; 7, bending mould; 8, hydraulic cylinder; 9, handle; 10, support; 11, adjusting structure; 1101, vertical rod; 1102, connecting rod; 1103, fixed hole; 1104, locking bolt; 12, pressing block; 13, measuring structure; 1301, limiting groove; 1302, scale; 1303, limiting rod; 1304, positioning rod; 1305, connecting block; 14, connecting head; 15, sliding groove. DETAILED DESCRIPTION

[0030] 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, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0031] Please refer to Figures 1-5 The utility model provides a kind of manual hydraulic pipe bender suitable for short size, including support 10.

[0032] Refer to Figures 1-5 As shown in the drawing, support 10 is equipped with hydraulic cylinder 8, and handle 9 is connected to hydraulic cylinder 8, and the output end of hydraulic cylinder 8 is equipped with connecting head 14, and one end of connecting head 14 is equipped with bending mould 7, and the bottom of one end of support 10 is equipped with fixed limiting plate 6, and the top of one end of support 10 is hinged with movable limiting plate 1, and the upper surface of movable limiting plate 1 is equipped with sliding groove 15 at both ends, and a plurality of positioning holes 2 are symmetrically arranged on fixed limiting plate 6 and movable limiting plate 1, and pipe bender 3 is symmetrically installed between movable limiting plate 1 and fixed limiting plate 6.

[0033] Pressing block 12 is installed on movable limiting plate 1, and the other end of pressing block 12 is provided with adjusting structure 11 for adjusting the height of pressing block 12, and adjusting structure 11 includes vertical rod 1101 installed on connecting head 14, connecting rod 1102 installed on vertical rod 1101, one end of connecting rod 1102 is fixedly connected with pressing block 12, locking bolt 1104 is symmetrically installed on both sides of vertical rod 1101, and fixed hole 1103 is arranged on the surface of vertical rod 1101, and fixed hole 1103 has a plurality of, and is equidistantly arranged on the surface of vertical rod 1101.

[0034] The steel pipe to be bent is placed on the bending die 7, the pipe bender 3 is installed as required, the movable limiting plate 1 is closed, the locking bolt 1104 is screwed into the fixed holes 1103 at different positions, the height of the pressing block 12 is adjusted, the pressing block 12 is attached to the movable limiting plate 1, the hydraulic oil is injected into the hydraulic cylinder 8, the handle 9 is manually pressed, the connecting head 14 is pushed to make the bending die 7 shrink, and the steel pipe is bent into the required shape. In the process of bending the pipe, the connecting head 14 drives the pressing block 12 to move along the direction of the sliding groove 15, the movable limiting plate 1 at different positions is pressed and limited, and the movable limiting plate 1 is prevented from being moved up.

[0035] Referring to Figure 1 , Figure 2 , Figure 3 and Figure 5 , one end of the pressing block 12 is provided with a measuring structure 13 for measuring the bending degree of the bent pipe. The measuring structure 13 comprises a limiting groove 1301, a scale 1302, a limiting rod 1303, a positioning rod 1304 and a connecting block 1305. The connecting block 1305 is installed at one end of the pressing block 12. One end of the connecting block 1305 is installed with the limiting rod 1303, and one end of the limiting rod 1303 is installed with the positioning rod 1304. The limiting rod 1303 extends into the connecting block 1305 and forms an extension structure with the spring inside the connecting block 1305. The limiting groove 1301 is formed on the movable limiting plate 1. The movable limiting plate 1 on both sides of the limiting groove 1301 is installed with the scale 1302.

[0036] The spring in the connecting block 1305 acts on the limiting rod 1303 to move, so that the positioning rod 1304 is in contact with the steel pipe. In the process of moving the pressing block 12, the connecting block 1305 drives the positioning rod 1304 to move. The positioning rod 1304 positions the bending degree of the bent pipe. In the process of bending the pipe, the bending degree of the bent pipe can be determined by checking the scale 1302, thereby improving the use effect.

[0037] Referring to Figure 1 and Figure 4 , the fixed limiting plate 6 and the bottom end of the hydraulic cylinder 8 are both installed with universal wheels 5. One side of the universal wheel 5 is provided with a supporting structure 4 for improving the overall stability of the hydraulic pipe bender during use. The supporting structure 4 comprises a supporting leg 401, an adjusting screw 402, an adjusting screw hole 403 and a fixed rod 404. The fixed rod 404 is installed at the fixed limiting plate 6 on one side of the universal wheel 5 and the bottom end of the hydraulic cylinder 8. The bottom end of the fixed rod 404 is installed with the adjusting screw 402, and the bottom end of the adjusting screw 402 is installed with the supporting leg 401. The lower surface of the supporting leg 401 is installed with anti-skid lines. The inner wall of the fixed rod 404 is formed with the adjusting screw hole 403 matched with the adjusting screw 402.

[0038] The universal wheel 5 is used for rolling to facilitate the movement of the hydraulic pipe bender, after moving to a suitable position, the supporting leg 401 is rotated, the screw rod 402 is adjusted to move along the direction of the adjusting screw hole 403, the height of the supporting leg 401 is adjusted to be in contact with the ground, and the overall stability of the hydraulic pipe bender during use can be improved under the support of the supporting leg 401.

[0039] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A short size manual hydraulic pipe bender suitable for, comprising a support (10); Its characterized in that: The support (10) is provided with a hydraulic cylinder (8), and the hydraulic cylinder (8) is connected with a handle (9), the output end of the hydraulic cylinder (8) is provided with a connecting head (14), one end of the connecting head (14) is provided with a bending die (7), the bottom of one end of the support (10) is provided with a fixed limiting plate (6), the top of one end of the support (10) is hingedly connected with a movable limiting plate (1), a plurality of positioning holes (2) are symmetrically arranged on the fixed limiting plate (6) and the movable limiting plate (1), and a pipe bender (3) is symmetrically arranged between the movable limiting plate (1) and the fixed limiting plate (6). The bottom end of the fixed limiting plate (6) and the hydraulic cylinder (8) are provided with universal wheels (5), and one side of the universal wheels (5) is provided with a supporting structure (4). The movable limiting plate (1) is provided with a pressing block (12), one end of the pressing block (12) is provided with a measuring structure (13), and the other end of the pressing block (12) is provided with an adjusting structure (11) for adjusting the height of the pressing block (12). The adjusting structure (11) comprises a vertical rod (1101) mounted on the connecting head (14), a connecting rod (1102) mounted on the vertical rod (1101), one end of the connecting rod (1102) being fixedly connected with the pressing block (12), lock bolts (1104) symmetrically mounted on both sides of the vertical rod (1101), and fixing holes (1103) formed in the surface of the vertical rod (1101).

2. A manually operated hydraulic pipe bender suitable for short lengths as claimed in claim 1 wherein: The supporting structure (4) comprises a supporting leg (401), an adjusting screw rod (402), an adjusting screw hole (403) and a fixing rod (404), the fixing rod (404) is respectively arranged at the bottom end of the fixed limiting plate (6) and the hydraulic cylinder (8) on one side of the universal wheel (5), the bottom end of the fixing rod (404) is provided with the adjusting screw rod (402), and the bottom end of the adjusting screw rod (402) is provided with the supporting leg (401), and the inner wall of the fixing rod (404) is provided with the adjusting screw hole (403) matched with the adjusting screw rod (402).

3. A manually operated hydraulic pipe bender suitable for short lengths as claimed in claim 2 wherein: The lower surface of the supporting leg (401) is provided with anti-skid lines.

4. A manually operated hydraulic pipe bender suitable for short lengths as claimed in claim 1 wherein: There are a plurality of fixing holes (1103) arranged at equal intervals on the surface of the vertical rod (1101).

5. A manually operated hydraulic pipe bender suitable for short lengths as claimed in claim 1, wherein: The measuring structure (13) comprises a limiting groove (1301), a scale (1302), a limiting rod (1303), a positioning rod (1304) and a connecting block (1305), the connecting block (1305) is arranged at one end of the pressing block (12), one end of the connecting block (1305) is provided with the limiting rod (1303), one end of the limiting rod (1303) is provided with the positioning rod (1304), the limiting groove (1301) is formed in the movable limiting plate (1), and the movable limiting plate (1) on both sides of the limiting groove (1301) is provided with the scale (1302).

6. A manually operated hydraulic pipe bender suitable for short lengths as claimed in claim 5 wherein: The limiting rod (1303) extends into the connecting block (1305) and forms a telescopic structure with the spring inside the connecting block (1305).

7. A manually operated hydraulic pipe bender suitable for short lengths as claimed in claim 1 wherein: The upper surface of the activity limiting plate (1) is provided with a sliding groove (15) at both ends.

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