阅读说明：本技术 几何倍增大力二维多级双连杆杠杆剪 (Two-dimensional multistage double-connecting-rod lever shear with large force multiplied geometrically ) 是由 梅斌 于 2021-09-16 设计创作，主要内容包括：一种几何倍增大力二维多级双连杆杠杆剪,支架竖杆左右两边各一组几何倍增大力二维多级双连杆杠杆,多级可以是2、3、4、5或更多级,每组杠杆的最后一级杠杆连接设置传动杆,传动杆末端通过销轴连接剪刀柄。当右手推动右几何倍增大力二维多级双连杆杠杆向下方运行带动右传动直杆、上剪刀柄向下方运动时,左手拉动左几何倍增大力二维多级双连杆杠杆向上方运行运行带动左传动拐杆、下剪刀柄向上方运动使大力剪进行剪切。本发明通过几何倍增大力二维多级双连杆杠杆达到增大力效果。双连杆纵向横向二维设置充分利用空间。本发明的优点：结构结实,翦切力大。(The utility model provides a two-dimentional multistage two-link lever scissors that how much energetically two-dimentional two-level two-link lever is cut, a set of how much energetically two-dimentional two-level two-link lever is cut on both sides respectively about support montant, and multistage can be 2, 3, 4, 5 or more levels, and the last level lever of every group lever is connected and is set up the transfer line, and the scissors handle is connected through the round pin axle to the transfer line end. When the right hand pushes the right geometry multiplication powerful two-dimensional multistage double-connecting-rod to move downwards to drive the right transmission straight rod and the upper shear handle to move downwards, the left hand pulls the left geometry multiplication powerful two-dimensional multistage double-connecting-rod to move upwards to drive the left transmission turning rod and the lower shear handle to move upwards to shear the powerful shear. The invention achieves the effect of increasing force by geometrically multiplying the force of the two-dimensional multistage double-connecting-rod lever. The double-connecting-rod longitudinal and transverse two-dimensional arrangement fully utilizes space. The invention has the advantages that: the structure is firm, and the shearing force is large.)

1. The utility model provides a how much multiplication energetically multistage two-link lever is cut, characterized by: the left side and the right side of a vertical rod of the bracket of the lever main body at the last stage are connected with a transmission rod through a pin shaft, the left transmission rod is a left transmission turning rod, and the right transmission rod is a right transmission straight rod.

2. The two-dimensional multistage double-link lever shear with large geometric multiplication force according to claim 1, wherein: the vertical parts of the left and right transmission rods are parallel to each other.

3. The two-dimensional multistage double-link lever shear with large geometric multiplication force according to claim 1, wherein: the transmission rod and the scissor handle are connected through a pin shaft.

Technical Field

The invention relates to the field of hardware tools, in particular to a two-dimensional multistage double-connecting-rod lever shear with large force multiplied geometrically.

Background

The traditional scissors have small strength, and the purpose of large force can be achieved only by using a two-dimensional multistage double-connecting-rod lever with large force multiplied geometrically and not increasing the body posture length when a power arm is added.

Disclosure of Invention

The invention provides a two-dimensional multistage double-connecting-rod lever shear with geometric multiplication and large force for realizing rapidness and large force.

The invention provides a two-dimensional multistage double-connecting-rod lever shear with large force multiplied geometrically, wherein the multistage is 2, 3, 4, 5 or more stages; the multilevel levers are transversely and longitudinally arranged in a two-dimensional manner to fully utilize the space; each level of lever main body comprises a double connecting rod, and two adjacent connecting rods in each double connecting rod are arranged in parallel; the shape and the size of each double connecting rod are consistent, and the distance is consistent; the middle part of each double-connecting rod is connected with a vertical support rod, the double-connecting rods on the left part of the vertical support rod are connected with a left turning piece through pin shafts to form a left geometric multiplication powerful two-dimensional multistage double-connecting rod lever, and the double-connecting rods on the right part of the vertical support rod are connected with a right turning piece through pin shafts to form a right geometric multiplication powerful two-dimensional multistage double-connecting rod lever. The (n + 1) th-level lever main body is arranged on the lower side of the (n) th-level lever main body, and the (n + 1) th-level lever main body is connected with the (n) th-level lever main body through the crank-shaped piece; from top to bottom, the top is first order lever main part. The left end and the right end of the first-stage lever main body are connected with a short vertical rod through a pin shaft, and the short vertical rod is connected with a handle. The vertical rods at the left end and the right end of the crank-shaped piece are parallel to the bracket; each crutch-shaped piece has the same shape and size. The left transmission rod is a left transmission turning rod, the right transmission rod is a right transmission straight rod, and the vertical part of the transmission rod is parallel to the support. The support, the short rigid rod, the double connecting rods, the crutch-shaped piece, the transmission rod and the scissor handle are connected through a pin shaft.

When the two-dimensional multistage double-connecting-rod lever with large force multiplied geometrically operates, external force acts on the first-stage lever main body double connecting rods through the handle, the force is transmitted to the first group of crank-shaped parts through the first-stage lever main body double connecting rods according to the lever ratio, then transmitted to the second-stage lever main body double connecting rods through the first group of crank-shaped parts, then transmitted to the second group of crank-shaped parts through the second group of crank-shaped parts according to the lever ratio, and then transmitted to the transmission rod through the third-stage lever main body double connecting rods according to the lever ratio, so that when the right transmission straight rod and the upper shear handle are driven to move downwards by the geometric multiplication of the external force, the left transmission crank rod and the lower shear handle are driven to move upwards to cut the large force shear.

When the vertical rod of the two-dimensional multistage double-connecting-rod parallel support with the large left geometric multiplication force moves downwards, the vertical rod of the two-dimensional multistage double-connecting-rod parallel support with the large right geometric multiplication force is driven to move upwards; when the vertical rod of the two-dimensional multistage double-connecting-rod parallel support with large force is moved downwards in the right-side geometric multiplication, the vertical rod of the two-dimensional multistage double-connecting-rod parallel support with large force is driven to move upwards in the left-side geometric multiplication.

When the handle is pushed by hand, the two-dimensional multistage double-connecting-rod parallel support vertical rod with multiplied geometric force can be driven to move. When the right handle is pushed by the right hand, the scissors perform shearing motion, and when the left handle is pushed by the left hand, the scissors are opened. When one hand pushes the most far end, the other hand pushes the handle to move, and the shearing is carried out in a reciprocating motion.

The traditional scissors have small force. The geometric multiplication of large force of the two-dimensional multistage double-connecting-rod lever is geometric multiplication. The invention has the advantages that:

the two-dimensional multistage double-connecting-rod lever shear with the geometric multiplication large force is durable, large in force and fast in structure.

Drawings

The present invention will be described in further detail with reference to the drawings and the following detailed description.

FIG. 1 is a structural diagram of a two-dimensional three-level double-link lever shear with geometric multiplication of large force;

fig. 2 is a structural schematic diagram of a two-dimensional two-stage double-link lever shear with geometric multiplication of large force.

Detailed Description

Example one

This embodiment provides a how much multiplication energetically multistage two-link lever is cut, its characterized in that: the two-dimensional multistage double-connecting-rod lever shear with large force multiplied geometrically comprises a left handle 1, a support 2, a right handle 3, a left first-stage lever main body double connecting rod 4, a right first-stage lever main body double connecting rod 5, a left first crutch-shaped part 6, a right first crutch-shaped part 7, a left second-stage lever main body double connecting rod 8, a right second-stage lever main body double connecting rod 9, a left second crutch-shaped part 10, a right second crutch-shaped part 11, a left third-stage lever main body double connecting rod 12, a right third-stage lever main body double connecting rod 13, a left transmission crutch 14, a right transmission straight rod 15, an upper shear handle 16, a lower shear handle 17, a lower shear blade 18, an upper shear blade 19, a left short vertical rod 20, a right short vertical rod 21, a base 22 and a plurality of pin shafts. The left end and the right end of the first-level lever main body are connected with short vertical rods 20 and 21 through pin shafts, and the short vertical rods 20 and 21 are connected with a left handle 1 and a right handle 3. The vertical rods at the left and right ends of the crank-shaped pieces 6, 7, 10 and 11 are parallel to the vertical rod of the bracket 2. The vertical parts of the left transmission turning rod 14 and the right transmission straight rod 15 are parallel to the vertical rod of the bracket 2. The support 2, the short rods 20 and 21, the crank-shaped parts 6, 7, 10 and 11, the left transmission crank rod 14 and the right transmission straight rod 15 are connected with each level of double connecting rods through pin shafts. When the two-dimensional three-level double-link lever with labor saving by geometric multiplication operates, external force acts on the first-level lever main body double-link rods 4 and 5 through the handle, the force is transmitted to the crank-shaped pieces 6 and 7 according to the lever ratio through the first-level lever main body double-link rods 4 and 5, then transmitted to the second-level lever main body double-link rods 8 and 9 through the first-level lever main body double-link rods 4 and 5, transmitted to the crank-shaped pieces 10 and 11 according to the lever ratio, transmitted to the third-level lever main body double-link rods 12 and 13 through the second-level lever main body double-link rods 8 and 9, and transmitted to the left transmission crank rod 14 and the right transmission straight rod 15 according to the lever ratio, so that the external force is geometrically multiplied to drive the right transmission crank rod 15 and the upper scissor handle 16 to move downwards, drive the left transmission crank rod 14 and the lower handle 17 to move upwards to cut the scissor blades 18 and 19, and drive the left transmission crank rod 14 and the lower handle 17 to move downwards, the right transmission straight rod 15 and the upper scissor handle 16 are driven to move upwards to open the scissor blades 18 and 19.

When the vertical rod of the two-dimensional multistage double-connecting-rod parallel support with the large force multiplied by the right geometry moves downwards, the vertical rod of the two-dimensional multistage double-connecting-rod parallel support with the large force multiplied by the left geometry is driven to move upwards; when the vertical rod of the two-dimensional multistage double-connecting-rod parallel support with large force is moved downwards in the left geometric multiplication mode, the vertical rod of the two-dimensional multistage double-connecting-rod parallel support with large force is driven to move upwards in the right geometric multiplication mode.

When the handle is pushed by hand, the two-dimensional three-level double-connecting-rod parallel support vertical rod with multiplied geometric force can be driven to move. When the right handle is pushed by the right hand, the scissors perform shearing motion, and when the left handle is pushed by the left hand, the scissors are opened. When one hand pushes the most far end, the other hand pushes the handle to move, and the shearing is carried out in a reciprocating motion.

The traditional scissors have small force. The geometric multiplication of large force of the two-dimensional three-level double-connecting-rod lever is geometric multiplication.

The transmission rod drives, and the structure is firm.

Example two

The first embodiment of the two-dimensional three-level two-link lever shear with large geometric multiplication force can be reduced to the second embodiment of the two-dimensional two-link lever shear with large geometric multiplication force, as shown in fig. 2, and the structure, function and principle of the first embodiment of the two-level two-link lever shear are similar to those of the first embodiment of the invention.