CN207971851U - A kind of labor-saving plier based on slider-crank mechanism - Google Patents

Abstract

The utility model discloses a labor-saving pliers based on a crank slider mechanism, which comprises an adjustable pliers head, a fixed cutting edge, a movable cutting edge, a movable pliers head, a movable seat, an upper connecting rod 1, a tension spring, an upper handle, and an upper connecting rod. Shaft, upper connecting rod 2, fixed seat, fixed grip ring, protective pad, lower connecting rod 2, lower handle, lower connecting shaft, lower connecting rod 1, guide block, groove body, card slot, locking screw and clamping head The utility model has the advantages of reasonable and simple structure, low production cost, convenient installation and complete functions. The adjusting pincers provided here can adjust the opening size of the jaws according to the needs. Phase separation, and then you can move left and right to adjust the position of the clamp head, so as to meet the needs of clamping different objects. The two sets of crank slider mechanisms set here can apply force to the crank slider mechanism with both hands at the same time to drive the movable seat to drive the movement. The pliers head moves to the right, thereby ensuring less effort when cutting thicker metals.

Description

A kind of labor-saving pliers based on crank-slider mechanism

technical field

The utility model relates to a hand pliers, in particular to a labor-saving pliers based on a crank slider mechanism.

Background technique

Most of the existing hand pliers are of scissor structure, the cutting edge and the handle are integrated, and the two handles are connected by pins, and the leverage principle is used to realize the functions of clamping, fixing the workpiece or twisting, bending, and cutting the wire; although the scissor structure It is simple and labor-saving, but in the process of use, the force application stroke is relatively large, and the cutting edge is easily dislocated; while the stroke of the labor-saving tongs of the existing crank-slider mechanism is relatively fixed and limited, and it is also laborious to cut thicker metals.

Utility model content

The purpose of this utility model is to provide a labor-saving pliers based on the slider crank mechanism in order to solve the above problems, to solve the problem that the stroke of the energy-saving pliers of the existing slider crank mechanism is relatively fixed and limited, and it is relatively difficult to cut thicker metals. strenuous question.

In order to solve the above problems, the utility model provides a technical solution: a labor-saving pliers based on the slider crank mechanism. , Upper connecting rod 1, extension spring, upper handle, upper connecting shaft, upper connecting rod 2, fixed seat, fixed grip ring, protective pad, lower connecting rod 2, lower handle, lower connecting shaft, lower connecting rod 1, Guide block, groove body, card slot, locking screw and clamping head; the lower side of the adjusting pliers head is laterally movably connected to the upper right side of the guide block, and a locking screw is movably connected in the threaded hole on the lower side of the adjusting pliers head, The upper left side of the adjusting pincer is provided with a fixed cutting edge; the movable seat is connected horizontally to the left side of the guide block, and the right end of the movable seat is fixedly connected with a movable pincer head, and the upper and lower positions of the left side of the movable seat are all adjusted by pulling The spring is internally connected with the upper and lower positions on the right side of the fixed grip ring, the upper side of the movable seat is hinged to the right side of the upper connecting rod, and the lower side of the movable seat is hinged to the right side of the lower connecting rod; the upper right side of the movable clamp head There is a movable cutting edge; the lower right side of the guide block is provided with a groove body, and the left end of the guide block is fixedly connected to the center on the right side of the fixed grip ring; the left center of the fixed grip ring is fixedly connected to a fixed seat, and the fixed The upper and lower positions inside the grip ring are fixedly connected with protective pads; the upper side of the fixed seat is hinged to the left side of the upper connecting rod two, and the lower side of the fixed seat is hinged to the left side of the lower connecting rod two; the right side of the upper connecting rod two is hinged. Both the left side and the left side of the upper link 1 are movably connected to the inner center of the lower side of the upper handle through the upper connecting shaft; the right side of the lower link 2 and the left side of the lower link 1 are movably connected to the lower The inner center of the upper side of the handle; several card slots are evenly arranged in the horizontal direction of the tank body; the card head is connected with the card slots, and the card head is fixedly connected to the upper end of the locking screw.

Preferably, the length of the upper link one is the same as that of the lower link one.

Preferably, the second upper link and the second lower link have the same length.

Preferably, the inner surface of the protective pad is provided with a wave-shaped gripping surface.

Preferably, elastic anti-slip layers are provided on the outer surfaces of the upper handle and the lower handle.

Beneficial effects of the utility model: the utility model has the advantages of reasonable and simple structure, low production cost, convenient installation, and complete functions. The adjusting pincers set here can adjust the opening size of the jaws according to needs, and specifically rotate the locking screw The clamp head is separated from the slot, and then the position of the clamp head can be adjusted by moving left and right, so as to meet the needs of clamping different objects. In addition, it can also reduce the range of movement of the crank slider mechanism, which improves the working efficiency. The two sets of crank-slider mechanisms set up here can apply force to the crank-slider mechanism with both hands at the same time to drive the movable seat to drive the movable pliers to move to the right, that is, the two hands hold the upper grip, the fixed grip ring and the lower grip tightly respectively. Apply the grip force with the fixed grip ring, so as to ensure that it is less labor-saving when cutting thicker metal.

Description of drawings

For ease of illustration, the utility model is described in detail by the following specific implementation and accompanying drawings.

Fig. 1 is the structural representation of the utility model.

1-adjusting pliers head; 2-fixed cutting edge; 3-moving cutting edge; 4-moving pliers head; Connecting shaft; 10-upper connecting rod two; 11-fixed seat; 12-fixed grip ring; 13-protective pad; 14-lower connecting rod two; 15-lower handle; 16-lower connecting shaft; 17-lower connecting rod One; 18-guide block; 19-slot body; 20-card slot; 21-locking screw; 22-chuck head.

Detailed ways

As shown in Figure 1, this specific embodiment adopts the following technical solutions: a labor-saving pliers based on a slider crank mechanism, including an adjustable pliers head 1, a fixed cutting edge 2, a movable cutting edge 3, a movable pliers head 4, and a movable seat 5 , Upper connecting rod one 6, extension spring 7, upper handle 8, upper connecting shaft 9, upper connecting rod two 10, fixed seat 11, fixed grip ring 12, protective pad 13, lower connecting rod two 14, lower handle 15 , the lower connecting shaft 16, the lower connecting rod 17, the guide block 18, the groove body 19, the clamping groove 20, the locking screw 21 and the chuck 22; On the side, a locking screw 21 is movably connected in the threaded hole on the lower side of the adjusting pliers head 1, and a fixed cutting edge 2 is provided on the upper left side of the adjusting pliers head 1; side, the right end of the movable seat 5 is fixedly connected with a movable clamp head 4, and the upper and lower positions on the left side of the movable seat 5 are connected with the upper and lower positions on the right side of the fixed grip ring 12 through a tension spring 7, and the upper side of the movable seat 5 It is hinged with the right side of the upper connecting rod 17, and the lower side of the movable seat 5 is hinged with the right side of the lower connecting rod 17; the upper right side of the movable clamp head 4 is provided with a movable cutting edge 3; the lower right side of the guide block 18 A tank body 19 is provided, and the left end of the guide block 18 is fixedly connected to the center of the right side of the fixed grip ring 12; A protective pad 13 is connected; the upper side of the fixed seat 11 is hinged with the left side of the upper link 2 10, and the lower side of the fixed seat 11 is hinged with the left side of the lower link 2 14; the right side of the upper link 2 10 and the left side of the upper link one 6 are movably connected to the inner center of the lower side of the upper handle 8 through the upper connecting shaft 9; the right side of the lower link two 14 and the left side of the lower link one 17 are connected through the lower The shaft 16 is movably connected to the inner center of the upper side of the lower handle 15; the inside of the groove body 19 is evenly provided with several slots 20 horizontally; the chuck 22 is connected to the slot 20, and the chuck 22 is fixedly connected to the locking screw 21 upper side end.

Wherein, the length of the upper connecting rod one 6 is the same as that of the lower connecting rod one 17; the length of the upper connecting rod two 10 is the same as that of the lower connecting rod two 14; the inner surface of the protective pad 13 is provided with a wave-shaped gripping surface ; The outer surfaces of the upper handle 8 and the lower handle 15 are provided with an elastic anti-skid layer.

The usage state of the utility model is: the utility model has the advantages of reasonable and simple structure, low production cost, convenient installation and complete functions. The adjusting pliers head 1 provided here can adjust the opening size of the jaws as required, specifically the rotation lock Tighten the screw 21 to separate the clamp head 22 from the draw-in groove 20, and then move left and right to adjust the position of the clamp head 1, thereby meeting the needs of different objects to be clamped, and also reducing the range of movement of the crank-slider mechanism. The working efficiency is improved. The two sets of crank-slider mechanisms set here can apply force to the crank-slider mechanism with both hands at the same time to drive the movable seat 5 to drive the movable pliers head 4 to move to the right, that is, to hold the upper handle tightly with both hands 8 and the fixed grip ring 12 and the lower handle 15 and the fixed grip ring 12 apply a grip force, thereby ensuring that the thicker metal is cut off and also more labor-saving.

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and description are only illustrations The principle of the utility model, under the premise of not departing from the spirit and scope of the utility model, the utility model also has various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed for protection. The desired protection is defined by the appended claims and their equivalents.

Claims (5)

1. A labor-saving pliers based on the slider crank mechanism, characterized in that: it comprises an adjustable jaw (1), a fixed cutting edge (2), a movable cutting edge (3), a movable jaw (4), a movable seat (5) ), upper link one (6), extension spring (7), upper handle (8), upper connecting shaft (9), upper link two (10), fixed seat (11), fixed grip ring (12) , protective pad (13), lower connecting rod two (14), lower handle (15), lower connecting shaft (16), lower connecting rod one (17), guide block (18), groove body (19), card Groove (20), locking screw (21) and chuck (22); The lower side of the adjusting pliers (1) is movably connected to the upper right side of the guide block (18), and a locking screw (21) is movably connected to the threaded hole on the lower side of the adjusting pliers (1), and the adjusting pliers The upper left side of the head (1) is provided with a fixed cutting edge (2); Described movable seat (5) is laterally movably connected on the left side above guide block (18), and the right end of described movable seat (5) is fixedly connected with movable pincers (4), and the upper and lower positions on the left side of described movable seat (5) are all The upper side of the movable seat (5) is hinged with the right side of the upper connecting rod one (6) through the tension spring (7), and the upper side of the movable seat (5) The side is hinged with the right side of the lower connecting rod one (17); A movable cutting edge (3) is provided on the upper right side of the movable pliers head (4); The lower right side of the guide block (18) is provided with a groove body (19), and the left end of the guide block (18) is fixedly connected to the center of the right side of the fixed grip ring (12); The center of the left side of the fixed grip ring (12) is fixedly connected with a fixed seat (11), and the inner and lower positions of the fixed grip ring (12) are fixedly connected with protective pads (13); The upper side of the fixed seat (11) is hinged to the left side of the upper connecting rod two (10), and the lower side of the fixed seat (11) is hinged to the left side of the lower connecting rod two (14); The right side of the upper connecting rod two (10) and the left side of the upper connecting rod one (6) are movably connected to the inner center of the lower side of the upper handle (8) through the upper connecting shaft (9); The right side of the lower connecting rod two (14) and the left side of the lower connecting rod one (17) are movably connected to the upper inner center of the lower handle (15) through the lower connecting shaft (16); Several card slots (20) are evenly arranged in the horizontal direction of the tank body (19); The chuck (22) is connected to the slot (20), and the chuck (22) is fixedly connected to the upper end of the locking screw (21). 2. A labor-saving pliers based on a slider crank mechanism according to claim 1, characterized in that: the first connecting rod (6) and the lower connecting rod one (17) have the same length. 3. A labor-saving tong based on a slider crank mechanism according to claim 1, characterized in that: the second upper link (10) and the second lower link (14) have the same length. 4. A labor-saving pliers based on a slider crank mechanism according to claim 1, characterized in that: the inner surface of the protective pad (13) is provided with a wave-shaped gripping surface. 5. A labor-saving pliers based on a slider crank mechanism according to claim 1, characterized in that: elastic anti-slip layers are provided on the outer surfaces of the upper handle (8) and the lower handle (15).