CN116160395A - Double-single hand-held hand tool for pliers - Google Patents

Abstract

The invention relates to the technical field of mechanical assembly and discloses a dual-single-hand handheld tool for pliers, which comprises a handle, wherein a left end willow pin of the handle is connected with an opening and closing mechanism, a first spring is welded on the right side of the upper end face of the handle, one end of the first spring, which is far away from the handle, is connected with a movable handle, and the front face of the opening and closing mechanism is provided with a magnetic pressing handle. The invention uses the inward bending arrangement of the symmetrical handles and the combination of the opening and closing mechanism and adopts the design of lever reinforcement or wedge reinforcement by the cooperation of the symmetrical handles, the transverse handles, the first opening and closing pliers and the second opening and closing pliers, thereby effectively solving the problem that the hand tool is laborious when in use, reducing the symmetrical deviation of the symmetrical handles and the grip loss by adopting the inward bending design of the symmetrical handles, improving the grip feel of an operator and reducing the grip loss of the operator when the hand tool is held by two hands.

Description

Double-single hand-held hand tool for pliers

Technical Field

The invention relates to the technical field of mechanical assembly, in particular to a dual-single-hand handheld tool for pliers.

Background

The mechanical assembly means that the connection of mechanical parts or components is realized according to the technical requirements of design, the mechanical parts or components are combined into a machine, the mechanical assembly is an important link of machine manufacturing and repairing, particularly for mechanical repairing, as the condition of providing the assembled parts is favorable for the machine manufacturing, the assembly work is more special, the quality of the assembly work plays a very important role on the efficiency of the machine, the repairing period, the labor and the cost of the work and the like, the mechanical assembly is an important technological process for finally determining the quality of a mechanical product in the machine manufacturing, even if all qualified parts are not formed, a product with qualified quality is often formed, the simple product can be directly assembled by the parts, and a plurality of parts are assembled into the parts in advance to be called part assembly; then assembling a plurality of parts and other parts into a complete product, namely, total assembly, and after the product is assembled, various tests and experiments are required to be carried out so as to ensure the assembly quality and the service performance of the product; some important parts are tested after being assembled, the assembly technology is developed along with the continuous improvement of the requirements on the product quality and the increase of production batches, and in the early development stage of the mechanical manufacturing industry, the parts are matched and connected by assembling multipurpose operations such as filing, scraping, hammering, screwing and the like.

However, the existing mechanical assembly adopts a hammer striking mode to strike, then the extending end of the sinking pin is disassembled, the hammer striking mode is not easy to judge whether the sinking is in place, the qualified number of the mechanical manufacture can be reduced due to the fact that the assembly of parts is not in place, the secondary processing steps of workers are increased, and the progress of the mechanical manufacture is prolonged; the outer surface of the elastic pin is dug by the dug pit during taking out, so that the appearance and durability of the elastic pin are seriously affected, and the quality and quality of mechanical processing are reduced; meanwhile, in some manual operations such as welding and sewing, two end objects are required to be clamped respectively and then are gathered and butted, and the operations are difficult to be completed by a single hand, so that a lot of operation inconvenience is caused, and the working efficiency of workers in mechanical assembly is reduced.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a pair of pliers double-single-hand-held hand-operated tool, which has the advantages of reducing the holding force of an operator using the hand-held hand-operated tool, increasing the comfort level of the operator using the hand-held hand-operated tool, realizing the staged control of single action when using the hand-held hand-operated tool and improving the quality of mechanical assembly, and solves the problems in the prior art.

The invention provides the following technical scheme: the utility model provides a two single hand-held hand tools of pincers class, includes the handle, the left end willow nail of handle is connected with the mechanism that opens and shuts, the right side welding of handle up end has a spring, the one end that the spring was kept away from the handle is connected with movable handle, the magnetism is pressed to the front of mechanism that opens and shuts installs, the magnetism is pressed the end magnetism of handle and is inhaled a cam, a cam is kept away from one side that the magnetism was pressed the handle and is installed the shield.

Preferably, the handle comprises a transverse handle and a symmetrical handle, the transverse handle is connected with the opening and closing mechanism willow nail, the symmetrical handle is connected with the opening and closing mechanism willow nail, and the symmetrical handle is arranged to be bent inwards.

Preferably, the opening and closing mechanism comprises an opening and closing clamp and a second opening and closing clamp, the opening and closing clamp is connected with the second opening and closing clamp through a first spring, the right end of the opening and closing clamp is movably mounted with the left end of the transverse handle, the inner wall of the second opening and closing clamp is connected with the inner wall of the symmetrical handle through the first spring, the inner wall of one end of the opening and closing clamp and the inner wall of one end of the second opening and closing clamp are respectively provided with a second spring, and the number of the second springs is two.

Preferably, the back of the first cam is provided with a second cam positioned on the back of the first opening and closing clamp, one side, away from the second cam, of the first cam is connected with a pinion, and the outer wall insection of the pinion is meshed with a connecting rod gear.

Preferably, the front face of the connecting rod gear is connected with the front face of the pinion and the protective shell cover through the willow nails, and the back face of the connecting rod gear is connected with the inner wall of the movable handle through the willow nails.

Preferably, the second spring is far away from the outer wall swing joint of the first opening and closing clamp and the second opening and closing clamp one end, the inner wall of the sliding block is sleeved with a movable pin, the outer wall of the movable pin is in contact with the outer wall of the second cam, one end of the movable pin is connected with the third spring, one end of the third spring far away from the movable pin is fixedly connected with one side of the sliding block, and the inner wall of the third spring is movably sleeved with the outer wall of the movable pin.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention uses the inward bending arrangement of the symmetrical handles and the combination of the opening and closing mechanism and adopts the design of lever reinforcement or wedge reinforcement by the cooperation of the symmetrical handles, the transverse handles, the first opening and closing pliers and the second opening and closing pliers, thereby effectively solving the problem that the hand tool is laborious when in use, reducing the symmetrical deviation of the symmetrical handles and the grip loss by adopting the inward bending design of the symmetrical handles, improving the grip feel of an operator and reducing the grip loss of the operator when the hand tool is held by two hands.

2. The invention realizes that the speed change design can be combined with the actual size space condition to design proper rod length parameters by utilizing the coordination among the protective housing, the connecting rod gear, the movable handle and the symmetrical handle, and utilizing the protective housing as a left rocker, the connecting rod gear as a middle connecting rod and the movable handle as a right rocker, effectively solves the problem of inconvenient operation of a single hand-held manual tool, adopts the adjustment of the speed change design, ensures that the positions of the protective housing and the connecting rod gear basically remain unchanged when the turning angle of the movable handle is amplified on a pinion, ensures that the pressure angle of the movable handle and the connecting rod gear is as small as possible, and reduces the loss of grip force transmission.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is an exploded view of FIG. 1 in accordance with the present invention;

FIG. 3 is a front view of a spring number one of the present invention;

FIG. 4 is an exploded view of FIG. 2 in accordance with the present invention;

fig. 5 is a rear view of the protective housing of the present invention.

In the figure: 1. a grip; 11. a transverse handle; 12. a symmetrical grip; 2. an opening and closing mechanism; 21. a first opening and closing clamp; 22. the second opening and closing clamp; 3. a first spring; 4. a movable handle; 5. a magnetic pressing handle; 6. a cam number one; 7. a protective housing; 8. a cam number two; 9. a pinion gear; 10. a connecting rod gear; 13. a second spring; 14. a sliding block; 15. a movable pin; 16. and a third spring.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1 and 2, a dual single hand-held hand tool for pliers comprises a handle 1, a left end of the handle 1 is connected with an opening and closing mechanism 2, the opening and closing mechanism 2 adopts a lever reinforcement or wedge reinforcement design, a large opening and closing force is provided, a first spring 3 is welded on the right side of the upper end face of the handle 1, one end of the first spring 3, which is far away from the handle 1, is connected with a movable handle 4, a magnetic pressing handle 5 is arranged on the front face of the opening and closing mechanism 2, the magnetic pressing handle 5 adopts a magnetization design, suitable clamping distances and clamping forces can be conveniently adjusted by attaching gaskets with different thicknesses, in addition, the magnetic pressing handle 5 can be well attached with a first cam 6, stable stroke control is obtained, a first cam 6 is magnetically attracted at the tail end of the magnetic pressing handle 5, a protective housing 7 is arranged on one side of the first cam 6, which is far away from the magnetic pressing handle 5, and the protective housing 7 is arranged to prevent accidental injury to an operator during operation.

Referring to fig. 3 and 4, the handle 1 includes a transverse handle 11 and a symmetrical handle 12, the transverse handle 11 is connected with a snap-pin of the opening and closing mechanism 2, the symmetrical handle 12 is connected with the snap-pin of the opening and closing mechanism 2, the symmetrical handle 12 is arranged in an inward bending shape, the opening and closing mechanism 2 includes a first opening and closing clamp 21 and a second opening and closing clamp 22, the first opening and closing clamp 21 and the second opening and closing clamp 22 are connected by the snap-pin, the right end of the first opening and closing clamp 21 is movably mounted with the left end of the transverse handle 11, the inner wall of the second opening and closing clamp 22 is connected with the inner wall of the symmetrical handle 12 by the snap-pin, the inner walls of the first opening and closing clamp 21 and one end of the second opening and closing clamp 22 are both provided with a second spring 13, the mounting of the second spring 13 can enable the wedged opening and closing mechanism 2 to quickly recover after working, and the number of No. two springs 13 is two, no. two springs 13 keep away from the outer wall swing joint of a pincers 21 that opens and shuts and No. two pincers 22 one ends and have sliding block 14, sliding block 14 and the connection of No. three springs 16 have alleviateed the system weight and the loading and unloading degree of difficulty effectively, the angle bisector of movable pin 15 insertion orbit control opening and shutting face has been guaranteed, movable pin 15 has been cup jointed to the inner wall of sliding block 14, and the outer wall contact of movable pin 15 and No. two cams 8, the one end of movable pin 15 is connected with No. three springs 16, and No. three springs 16 keep away from one end and one side fixed connection of sliding block 14 of movable pin 15, the inner wall of No. three springs 16 and the outer wall activity of movable pin 15 cup joint.

Referring to fig. 4 and 5, a second cam 8 located at the back of the first opening and closing pliers 21 is installed on the back of the first cam 6, a pinion 9 is connected to one side, away from the second cam 8, of the first cam 6, a connecting rod gear 10 is meshed with the external wall insection of the pinion 9, when the turning angle of the movable handle 4 is amplified on the pinion 9, the positions of the protective housing 7 and the connecting rod gear 10 are basically maintained unchanged, the pressure angle between the movable handle 4 and the connecting rod gear 10 is ensured to be as small as possible, the front of the connecting rod gear 10 is connected with the front of the pinion 9 and the protective housing 7 through a willow nail, the back of the connecting rod gear 10 is connected with the inner wall willow nail of the movable handle 4, and the connecting rod gear 10, the movable handle 4 and the protective housing 7 form a speed change mechanism, so that the loss of reducing the gripping force transfer of an operator is achieved.

Working principle: when the hand-held double-hand tool is used, firstly, two ends of a clamped object are respectively stretched into an upper jaw and a lower jaw at the left side and the right side, then, the symmetrical handles 12 are pinched, the upper jaw and the lower jaw at the two ends are clamped, finally, the transverse handles 11 and the symmetrical handles 12 are clamped by two hands, and the jaws at the two ends are gathered or spread;

when the hand-held hand tool is used, firstly, two ends of a clamped object extend into an upper jaw and a lower jaw at the left side and the right side respectively, then, the movable handle 4 and the symmetrical handle 12 are pinched, a first sequential travel cam angle of 0-alpha DEG is entered, at the moment, the first cam 6 rotates to press down the pressing handle, the upper jaw and the lower jaw at the two ends are gradually pinched, the contact point of the second cam 8 and the movable pin 15 slides around the base circle of the second cam 8, then, the movable handle 4 and the symmetrical handle 12 are continued, at the moment, the first cam 6 rotates along the maximum radius to keep the pinching state of the jaws, the second cam 8 gradually extrudes the movable pin to be wedged into the opening and closing mechanism, so that pincers at the left side and the right side are gathered together, and finally, the handle is loosened, the first spring 3, the third spring 16 and the second spring 13 rebound, and the back side of the first cam 6 is driven to return to an initial state, and the back side of the first cam 6 is used as a return limit of the movable handle 4.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Meanwhile, in the drawings of the present invention, the filling pattern is only for distinguishing the layers, and is not limited in any way.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a two single hand-held hand tools of pincers class, includes handle (1), its characterized in that: the left end willow nail of handle (1) is connected with mechanism (2) that opens and shuts, the right side welding of handle (1) up end has spring (3), the one end that handle (1) was kept away from to spring (3) is connected with movable handle (4), magnetic pressure handle (5) are installed in the front of mechanism (2) that opens and shuts, no. one cam (6) are inhaled to the end magnetism of magnetic pressure handle (5), no. one cam (6) keep away from one side of magnetic pressure handle (5) and install protective housing cover (7), handle (1) are including horizontal handle (11) and symmetrical handle (12), and horizontal handle (11) are connected with mechanism (2) willow nail that opens and shuts, symmetrical handle (12) are connected with mechanism (2) willow nail, and symmetrical handle (12) set up to inside crooked form.

2. A dual, single hand tool for pliers as defined in claim 1 wherein: the opening and closing mechanism (2) comprises an opening and closing clamp (21) and a second opening and closing clamp (22), the opening and closing clamp (21) and the second opening and closing clamp (22) are connected through a willow nail, the right end of the opening and closing clamp (21) and the left end of the transverse handle (11) are movably mounted, the inner wall of the second opening and closing clamp (22) and the inner wall of the symmetrical handle (12) are connected through the willow nail, the inner walls of the opening and closing clamp (21) and one end of the second opening and closing clamp (22) are respectively provided with a second spring (13), and the number of the second springs (13) is two.

3. A dual, single hand tool for pliers as defined in claim 1 wherein: the back of the first cam (6) is provided with a second cam (8) positioned on the back of the first opening and closing clamp (21), one side, away from the second cam (8), of the first cam (6) is connected with a pinion (9), and the outer wall insection of the pinion (9) is meshed with a connecting rod gear (10).

4. A pliers double single hand tool as claimed in claim 3 wherein: the front face of the connecting rod gear (10) is connected with the front face of the pinion (9) and the protective housing (7) through the willow nails, and the back face of the connecting rod gear (10) is connected with the inner wall of the movable handle (4) through the willow nails.

5. A dual, single hand tool for pliers as defined in claim 4 wherein: the spring (13) No. two keep away from the outer wall swing joint that pincers (21) and pincers (22) one end open and shut No. two have sliding block (14), movable pin (15) have been cup jointed to the inner wall of sliding block (14), and the outer wall of movable pin (15) and the outer wall contact of No. two cams (8), the one end of movable pin (15) is connected with No. three spring (16), and No. three spring (16) keep away from the one end of movable pin (15) and one side fixed connection of sliding block (14), the inner wall of No. three spring (16) and the outer wall activity of movable pin (15) cup joint.

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