Portable manual bending device

Abstract

The utility model discloses a portable manual bending device which comprises a bottom plate and two stand columns arranged on the bottom plate in a spaced mode, sliding grooves are formed in the opposite sides of the two stand columns, an upper mold is detachably connected between the two stand columns, a lower mold is arranged below the upper mold and connected between the two sliding grooves in a sliding mode, and the lower mold is connected between the two sliding grooves in a sliding mode. The upper mold and the lower mold are respectively provided with an outer convex knife edge and an inner concave notch which are matched with each other, a hydraulic jack is further arranged between the two stand columns, the top of a piston rod of the hydraulic jack is provided with a supporting plate used for supporting the lower mold, and the supporting plate is connected between the two sliding grooves in a sliding mode. The device is light, easy to operate and convenient to carry, can be conveniently moved and used in different working places, can quickly and accurately bend flat iron and copper bars on site, and improves the working efficiency and convenience.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a portable manual bending device. Background Technology

[0002] In the construction of water conservancy and hydropower projects, it is often necessary to bend grounding flat iron and copper busbars. However, current traditional bending equipment and manual bending methods have many shortcomings.

[0003] Traditional bending equipment is typically large and heavy, making it extremely inconvenient to transport and move on construction sites. This is especially true in projects with poor transportation access, where frequent bending operations in different locations are required, and traditional equipment struggles to meet the demands of flexible on-site operations. While some self-made manual bending tools using steel pipes offer some flexibility, their simple design makes it difficult to precisely control the bending angle, resulting in unsightly and poor-quality flat iron or copper bars after bending. Furthermore, these tools are time-consuming, labor-intensive, and inefficient. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a portable manual bending device. The device is lightweight, easy to operate, and easy to carry. It can be easily moved and used in different work sites and can quickly and accurately bend flat iron and copper busbars on site, improving work efficiency and convenience.

[0005] A portable manual bending device includes a base plate and two columns spaced apart on the base plate. Each column has a groove on one side of its opposite side. An upper mold is detachably connected between the two columns. A lower mold is slidably connected between the two grooves below the upper mold. The upper and lower molds are respectively provided with mutually compatible protruding cutting edges and indented grooves. A hydraulic jack is also provided between the two columns. The piston rod of the hydraulic jack is provided with a support plate for supporting the lower mold, and the support plate is slidably connected between the two grooves.

[0006] A further technical solution is: the upper mold includes a mold frame, the two ends of the mold frame are slidably connected to two slide grooves respectively, and the protruding cutting edge is fixedly connected to the bottom of the mold frame; the lower mold includes a mold block, the two ends of the mold block are provided with sliders adapted to the slide grooves, and the inner groove opening is opened on the top of the mold block.

[0007] A further technical solution is: two fixing holes are respectively provided at the same height of the two columns, and positioning holes corresponding to the two fixing holes are respectively provided at both ends of the mold frame. Fixing pins for passing through the fixing holes and positioning holes are also provided on the columns.

[0008] A further technical solution is to set the cross-sectional shape of the cutting edge and the notch to be a vertically symmetrical U-shape, a 90° bend, or a 120° bend.

[0009] A further technical solution is: an operating handle is connected to the outside of the column, one end of the operating handle is provided with a hydraulic jack pressure relief port, and the other end is provided with a handle sleeve.

[0010] A further technical solution is to provide several placement holes on the outer side of the column for placing the operating handle.

[0011] A further technical solution is: a limiting groove that is adapted to the base of the hydraulic jack is fixedly installed on the base plate.

[0012] The beneficial effects of this utility model are:

[0013] This device controls the bending angle and shape through the cutting edges and grooves of the upper and lower molds. It uses a hydraulic jack as the bending power element. The hydraulic jack drives the lower mold to cooperate with the upper mold to bend the flat iron and copper busbar, thereby ensuring the bending quality of the flat iron and copper busbar.

[0014] This device features a portable design, incorporating detachable upper and lower molds and a hydraulic jack for easy carrying. It can be installed and disassembled on-site, facilitating its movement to different work locations. Furthermore, the upper and lower molds can be replaced with different shapes or angles to precisely control the bending angle of the flat iron and copper busbars, making it highly flexible and efficient. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram showing the front view of the column;

[0017] Figure 3 This is a top-view diagram of the column;

[0018] Figure 4 This is a schematic diagram of the upper mold in one embodiment;

[0019] Figure 5 yes Figure 4 A schematic diagram of the side view direction;

[0020] Figure 6 This is a schematic diagram of the lower mold in one embodiment;

[0021] Figure 7 yes Figure 6 A schematic diagram of the side view direction;

[0022] Figure 8 This is a schematic diagram of the slot in another embodiment;

[0023] Figure 9 This is a schematic diagram of the slot in another embodiment;

[0024] Figure 10 This is a schematic diagram of the hydraulic jacking device;

[0025] Figure 11 This is a schematic diagram of the operating handle.

[0026] In the picture:

[0027] 1. Base plate, 2. Column, 21. Slide groove, 22. Fixing hole, 3. Upper mold, 31. Mold frame, 32. Cutting edge, 33. Positioning hole, 4. Lower mold, 41. Mold block, 42. Groove, 43. Slider, 5. Fixing pin, 6. Hydraulic jack, 7. Operating handle, 71. Pressure relief port, 72. Handle sleeve, 8. Support plate, 9. Limiting groove, 10. Placement hole. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0029] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] A portable manual bending device, such as Figures 1-11As shown, the system includes a base plate 1 and two columns 2 spaced apart on the base plate 1. Each of the two columns 2 has a sliding groove 21 on one side of its opposite side. An upper mold 3 is detachably connected between the two columns 2. A lower mold 4 is slidably connected between the two sliding grooves 21 below the upper mold 3. The upper mold 3 and the lower mold 4 are respectively provided with mutually compatible protruding cutting edges 32 and indented grooves 42. A hydraulic jack 6 is also provided between the two columns 2. A support plate 8 for supporting the lower mold 4 is provided on the top of the piston rod of the hydraulic jack 6. The support plate 8 is slidably connected between the two sliding grooves 21.

[0032] The upper mold 3 of this device is fixed between two columns 2. The hydraulic jack 6 drives the support plate 8 to move up and down, which in turn drives the lower mold 4 to slide up and down in the slide groove 21. This allows the cutting edge 32 of the upper mold 3 to cooperate with the groove 42 of the upper mold 3 to press the sheet metal, thereby realizing the bending operation of the sheet metal.

[0033] like Figures 4-7 As shown, the upper mold 3 includes a mold frame 31, with both ends of the mold frame 31 slidably connected to two slide grooves 21, and an outwardly protruding cutting edge 32 fixedly connected to the bottom of the mold frame 31; the lower mold 4 includes a mold block 41, with both ends of the mold block 41 provided with sliders 43 that are adapted to the slide grooves 21, and an inner groove opening 42 opened on the top of the mold block 41.

[0034] Two fixing holes 22 are respectively provided at the same height on the two columns 2. Positioning holes 33 corresponding to the two fixing holes 22 are provided at both ends of the mold frame 31. Fixing pins 5 are also provided on the two columns 2 for passing through the fixing holes 22 and positioning holes 33. Specifically, the two fixing pins 5 are made of stainless steel and are suspended from the sides of the columns 2 by nylon ropes or chains. When fixing the upper mold 3, the mold frame 31 is inserted into the slide groove 21 from the upper end slot 42 of the column 2, and the positioning holes 33 at both ends of the mold frame 31 are aligned with the fixing holes 22 on the two columns 2. Then, the fixing pins 5 are inserted into the fixing holes 22 and positioning holes 33, thereby stably fixing the upper mold 3 between the two columns 2. When it is necessary to replace the upper mold 3, the fixing pins 5 can be removed.

[0035] In one specific embodiment, both the upper mold 3 and the lower mold 4 are made of aluminum alloy. The shapes of the cutting edge 32 of the upper mold 3 and the groove 42 of the lower mold 4 can be set according to construction needs. Specifically, in one embodiment, such as... Figures 4-7 As shown, the blade edge 32 is shaped as a vertically symmetrical U-shape, and the groove 42 is a U-shaped groove 42 adapted to the U-shaped blade edge 32. In another embodiment, as... Figure 8 As shown, the blade edge 32 and the notch 42 are shaped as vertically symmetrical 90° bends. In another embodiment, as... Figure 9As shown, the shapes of the cutting edge 32 and the notch 42 can also be set as vertically symmetrical 120° bent shapes.

[0036] This utility model of a portable manual bending device also includes an operating handle 7 detachably connected to the outside of the column 2, such as... Figure 11 As shown, one end of the operating handle 7 is provided with a hydraulic jack 6 pressure relief port 71, and the other end is provided with a handle sleeve 72.

[0037] The outer side of the column 2 has several placement holes 10 for housing the operating handle 7. Specifically, two placement holes 10 are spaced apart along the height direction on the outer side of the column 2. The diameter of the placement hole 10 is larger than the diameter of the operating handle 7. The placement holes 10 are made of steel pipe and welded to the outer side of the column 2. When the hydraulic jack 6 is not needed, the operating handle 7 is passed through the placement holes 10 and stored on the base plate 1. When the hydraulic jack 6 is needed, the operating handle 7 can be pulled out, making it convenient and flexible to use and manage.

[0038] Specifically, the base plate 1 is a square plate made of 10mm steel plate. The column 2 is a channel-shaped plate made of 5mm steel plate. The hydraulic jack 6 is a pre-made product purchased directly from the market. The support plate 8 is a rectangle made of 10mm steel plate. The dimensions of the support plate 8 match the lower mold 4 and the slide 21, and it is welded to the top of the piston rod of the jack.

[0039] A limiting groove 9, which is adapted to the base of the hydraulic jack 6, is fixedly installed on the base plate 1. The limiting groove 9 is used to limit the position of the hydraulic jack 6 and prevent the jack from shifting when operating the jack. Specifically, the limiting groove 9 is made of a square structure of a 5mm thick steel plate and is welded and fixed to the base plate 1.

[0040] How to use this utility model:

[0041] (1) Place the base plate 1 on the ground;

[0042] (2) Insert the support plate 8 on the hydraulic jack 6 into the slot 42 at the top of the column 2 between the two sliding grooves 21, and at the same time, insert the base of the hydraulic jack 6 into the limiting groove 9 on the base plate 1 to prevent the jack from shifting when operating the jack.

[0043] (3) Insert the lower mold 4 through the upper slot 42 of the column 2 via the sliders 43 at both ends until the lower mold 4 is placed on the support plate 8 of the hydraulic lifting device.

[0044] (4) Insert the upper mold 3 through the slot 42 at the top of the column 2, and after the positioning holes 33 at both ends of the mold frame 31 coincide with the fixing holes 22 on the two columns 2, insert the fixing pin 5 to fix the upper mold 3 firmly on the column 2.

[0045] (5) When bending, place the flat iron between the upper mold 3 and the lower mold 4, and place it flat on the lower mold 4. Insert the control handle 7 into the operating hole of the hydraulic jack 6. By operating the control handle 7 up and down, the hydraulic jack 6 pushes the lower mold 4 upward and lifts it up. By cooperating with the upper mold 3, the flat iron is pressed to achieve the bending operation. When different bending angles and shapes are required, the upper and lower molds 3 and 4 of the required shape can be replaced.

[0046] (6) After bending, use the pressure relief port 71 at one end of the operating handle 7 to release the pressure of the jack and pull out the flat iron to complete the bending work.

[0047] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A portable hand bending device, characterized in that, The utility model relates to a two -sectional mould for producing a plastic container, which comprises a base plate and two uprights spaced apart on the base plate, the opposite sides of the two uprights are provided with sliding grooves, and an upper mould is detachably connected between the two uprights, a lower mould is arranged below the upper mould and is slidingly connected between the two sliding grooves, the upper mould and the lower mould are respectively provided with mutually matched convex knife edges and concave groove openings, a hydraulic jack is further arranged between the two uprights, a supporting plate for supporting the lower mould is arranged on the top of the piston rod of the hydraulic jack, and the supporting plate is slidingly connected between the two sliding grooves.

2. A portable hand bending device according to claim 1, wherein The upper mould comprises a mould frame, the two ends of the mould frame are slidingly connected with the two sliding grooves respectively, and the convex knife edges are fixedly connected to the bottom of the mould frame; the lower mould comprises a mould block, sliding blocks matched with the sliding grooves are arranged at the two ends of the mould block, and the concave groove openings are arranged on the top of the mould block.

3. A portable hand bending device according to claim 2, wherein, Two fixing holes are arranged at the same height of the two uprights respectively, the two ends of the mould frame are respectively provided with positioning holes corresponding to the two fixing holes, and a fixing pin is arranged on the upright for penetrating through the fixing holes and the positioning holes.

4. The portable hand bending device of claim 1, wherein, The cross-sectional shape of the knife edges and the groove openings is vertically symmetrical U-shaped, 90 DEG bent or 120 DEG bent.

5. The portable hand bending device of claim 1, wherein, An operating handle is connected to the outer side of the upright, a hydraulic jack pressure relief opening is arranged at one end of the operating handle, and a handle sleeve is arranged at the other end of the operating handle.

6. A portable hand bending device according to claim 5, wherein, A plurality of placing holes for placing the operating handle are arranged on the outer side of the upright.

7. The portable hand bending device of claim 1, wherein, A limiting groove matched with the base of the hydraulic jack is fixedly arranged on the base plate.

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