Manual edge folding pliers
By designing manual folding pliers with n-shaped frame structures, the problem of existing tools being difficult to fold small Z-shaped sides is solved, and the folding effect is achieved with simple operation, accurate and durable.
Patent Information
- Application Number
- CN202422463727.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-10-12
AI Technical Summary
It is difficult for existing building tools to effectively fold thin iron sheets with small Z-sides, and the existing tools are complex or easy to damage, making them inconvenient for manufacturing.
A manual flexing pliers are designed, adopting an n-shaped frame structure, including the first and second grips, the first and second steel sheets are provided with a punch and a concave die respectively, both of which are suitable and connected by parallel and vertical rotating shafts to ensure accurate and easy operation of the folding edges.
It realizes that the thin iron folding edges of small Z-shaped sides are simple and accurate, and the structure is simple and durable, making it easy to manufacture.
Smart Images
Figure CN223276999U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of tools, in particular to the field of construction tools. Background Art
[0002] In existing construction installations, thin metal sheets often need to be bent, sometimes in a Z-shaped form. The bends are often very small, such as just 1 cm. Existing tools often suffer from difficulties in operation or complex structures. For example, some hemming pliers struggle to create small Z-shaped bends. Another example is the complex structure of some hemming pliers. This complexity makes them susceptible to damage and difficult to manufacture. Utility Model Content
[0003] In order to overcome the deficiencies of the prior art, the present invention proposes: a manual hemming pliers, comprising a first handle and a second handle, characterized in that: one end of the first handle is fixedly connected to the top end of an N-shaped frame, the N-shaped frame is provided with a first rotating shaft, and the first steel sheet can rotate around the first rotating shaft; a second rotating shaft is also provided, the second rotating shaft is arranged between the first rotating shaft and the top end of the N-shaped frame, and the second steel sheet can rotate around the second rotating shaft; one end of the second handle is fixedly connected to the second steel sheet, the first steel sheet is provided with a punch, and the second steel sheet is provided with a die, the punch and the die have the same shape, and the punch can be embedded in the die;
[0004] The axis of the first rotating shaft is parallel to the axis of the second rotating shaft; the first rotating shaft and the second rotating shaft are both connected to the left and right pieces of the N-shaped frame;
[0005] The axis of the second rotating shaft and the axis of the first handle are vertical in space.
[0006] The first steel sheet and the second steel sheet are both made of steel plates of the same thickness. The first steel sheet is provided with a first rotating shaft hole, the first rotating shaft hole is used to pass the first rotating shaft, and the first rotating shaft hole is arranged between the inner sides of the left and right sheets of the N-shaped frame; the second steel sheet is provided with a second rotating shaft hole, the second rotating shaft hole is used to pass the second rotating shaft, and the second rotating shaft hole is located between the inner sides of the left and right sheets of the N-shaped frame;
[0007] The second steel sheet is L-shaped, one side of the second steel sheet is used to fix the second handle, and the other side of the second steel sheet is provided with a die on its inner side.
[0008] There is a gap between the first steel sheet and the second steel sheet, the gap is greater than 1mm,
[0009] The die and the second handle are separated on both sides of the N-shaped frame.
[0010] The first handle and the second handle are located on the same side of the N-shaped frame.
[0011] Furthermore, the thickness of the first steel sheet is the same as that of the second steel sheet, and the thickness is greater than 5 mm. Furthermore, the width of the n-shaped frame is the same as the thickness of the first steel sheet.
[0012] Furthermore, the first handle is made of a straight steel pipe, and the first handle is also made of a straight steel pipe.
[0013] The utility model has a simple structure, is easy to use and manufacture, and is durable. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic structural diagram of the utility model.
[0015] Figure 2 It is a partial structural diagram of the utility model.
[0016] In the figure: 1-first handle, 2-second handle, 3-N-shaped frame, 4-first rotating shaft, 5-first steel sheet, 6-second rotating shaft, 7-second steel sheet, 51-first rotating shaft hole, 71-second rotating shaft hole, 52-punch, 72-die. DETAILED DESCRIPTION
[0017] The following is combined with Figure 1 and attached Figure 2 , give a specific introduction to the utility model.
[0018] See attached Figure 1 and attached Figure 2 , manual crimping pliers, including a first handle 1, a second handle 2, and an n-shaped frame 3 made of steel, which can ensure sufficient strength. One end of the first handle 1 is fixedly connected to the top of the n-shaped frame 3, and the fixed connection here is preferably welded.
[0019] The N-shaped frame 3 is provided with a first rotating shaft 4, which can be replaced by a steel bar or a screw, and the first steel sheet 5 can rotate around the first rotating shaft 4; a second rotating shaft 6 is also provided, which can be replaced by a steel bar, for example, the diameter of the steel bar is 5 mm, and the second rotating shaft 6 is arranged between the first rotating shaft 4 and the top of the N-shaped frame 3, and the second steel sheet 7 can rotate around the second rotating shaft 6; one end of the second handle 2 is fixedly connected to the second steel sheet 7, and the fixed connection method is preferably welding.
[0020] The first steel sheet 5 is provided with a punch 52, and the second steel sheet 7 is provided with a die 72. The shapes of the punch 52 and the die 72 are adapted to each other, and the punch 52 can be embedded in the die 72; then, the iron sheet can be bent and deformed when subjected to pressure.
[0021] The axis of the first rotating shaft 4 and the axis of the second rotating shaft 6 are parallel; the first rotating shaft 4 and the second rotating shaft 6 are both connected to the left and right pieces of the N-shaped frame 3; the axis of the second rotating shaft 6 and the axis of the first handle 1 are vertical in space, the first steel sheet 5 and the second steel sheet 7 are both made of steel plates of the same thickness, the first steel sheet 5 is provided with a first rotating shaft hole 51, the first rotating shaft hole 51 is used to pass through the first rotating shaft 4, the first rotating shaft hole 51 is arranged between the inner sides of the left and right pieces of the N-shaped frame 3; the second steel sheet 7 is provided with a second rotating shaft 6 hole 71, the second rotating shaft 6 hole 71 is used to pass through the second rotating shaft 6, the second rotating shaft 6 hole 71 is located between the inner sides of the left and right pieces of the N-shaped frame 3; the second steel sheet 7 is L-shaped, one edge of the second steel sheet 7 is used to fixedly connect the second handle 2, and the other edge of the second steel sheet 7 is provided with a die 72 on its inner side.
[0022] There is a gap between the first steel sheet 5 and the second steel sheet 7 , the gap being greater than 1 mm and preferably less than 5 mm.
[0023] The concave mold 72 and the second handle 2 are located on both sides of the N-shaped frame 3 , and the first handle 1 and the second handle 2 are located on the same side of the N-shaped frame 3 .
[0024] Furthermore, the thickness of the first steel sheet 5 is the same as that of the second steel sheet 7, and the thickness is greater than 5 mm, because only a sufficient thickness is convenient for use.
[0025] Furthermore, the width of the n-shaped frame 3 is the same as the thickness of the first steel sheet 5. This design allows the first steel sheet 5 and the second steel sheet 7 to rotate only around the axis, which also makes the folding more precise.
[0026] Furthermore, the first handle 1 is made of a straight steel pipe, and the second handle 2 is also made of a straight steel pipe. Such a design makes it easy to manufacture the present invention and is conducive to the vise holding the first handle 1 or clamping the second handle 2.
[0027] To use this utility model: Hold the first handle 1 and the second handle 2 in your hands, similar to using ordinary pliers. Then, push the second handle 2, or in other words, rotate the first and second handles 1 and 2 about the second rotation axis 6. Then, a gap is formed between the first and second steel sheets 5 and 7 between the punch 52 and the die 72. It is particularly important to emphasize that a gap is left between the first and second steel sheets 5 and 7, and this gap is located between the first and second rotation axes 4 and 6. This is very important! Then, insert the iron sheet to be processed into the gap between the punch 52 and the die 72. Then, apply force to the first and second handles 1 and 2, causing them to move closer together. At this time, the die 72 and the punch 52 are pressed against each other, completing the folding of the iron sheet.
[0028] The utility model has the advantages of simple structure, easy manufacture and durability.
Claims
1. Manual hemming pliers, comprising a first handle and a second handle, characterized by: One end of the first handle is fixedly connected to the top of the N-shaped frame. The N-shaped frame is provided with a first rotating shaft, and the first steel sheet can rotate around the first rotating shaft. A second rotating shaft is also provided. The second rotating shaft is arranged between the first rotating shaft and the top of the N-shaped frame, and the second steel sheet can rotate around the second rotating shaft. One end of the second handle is fixedly connected to the second steel sheet. The first steel sheet is provided with a male die, and the second steel sheet is provided with a female die, the male die and the female die are adapted in shape, and the male die can be embedded in the female die; The axis of the first rotating shaft is parallel to the axis of the second rotating shaft; the first rotating shaft and the second rotating shaft are both connected to the left and right pieces of the N-shaped frame; The axis of the second rotating shaft and the axis of the first handle are vertical in space. The first steel sheet and the second steel sheet are both made of steel plates of the same thickness. The first steel sheet is provided with a first rotating shaft hole, the first rotating shaft hole is used to pass the first rotating shaft, and the first rotating shaft hole is arranged between the inner sides of the left and right sheets of the N-shaped frame; the second steel sheet is provided with a second rotating shaft hole, the second rotating shaft hole is used to pass the second rotating shaft, and the second rotating shaft hole is located between the inner sides of the left and right sheets of the N-shaped frame; The second steel sheet is L-shaped, one side of the second steel sheet is used to fix the second handle, and the other side of the second steel sheet is provided with a die on its inner side. A gap is left between the first steel sheet and the second steel sheet, and the gap is greater than 1mm. The die and the second handle are separated on both sides of the N-shaped frame. The first handle and the second handle are located on the same side of the N-shaped frame.
2. The manual hemming pliers according to claim 1, characterized in that: The thickness of the first steel sheet is the same as that of the second steel sheet, and the thickness is greater than 5 mm.
3. The manual hemming pliers according to claim 1, characterized in that: The width clamped by the N-shaped frame is the same as the thickness of the first steel sheet.
4. The manual hemming pliers according to claim 1, wherein: The first grip is made of a straight steel pipe, and the second grip is also made of a straight steel pipe.