CN113732211B - Handle rigid contact prevention device used during shearing and closing of European bolt clippers - Google Patents

Abstract

The invention discloses a handle rigid contact prevention device used for cutting and closing European style wire clippers, which comprises a turning plate component and a rotating rod component, wherein the turning plate component comprises a rotating plate and a first bottom box, the rotating plate is rotatably arranged on the first bottom box, the rotating rod component comprises a rotating rod and a second bottom box, an elastic sliding block for performing elastic resistance on the rigid contact of the wire clippers is arranged between the rotating rod and the rotating plate, a contact seat component for performing elastic resistance along with the rotation of the rotating plate is also arranged in the first bottom box, a folding connecting arm is arranged on a clipper handle at one side of the turning plate component and the rotating rod component close to a grip, an auxiliary buffer component is arranged on the clipper handle, so that the mutual cooperation of multiple groups of actions is realized, the contact of the closed wire clippers is cooperatively blocked and buffered, the contact is mutually supplemented and secured, the rigid contact of the closed wire clippers during cutting is effectively avoided, and the wire clippers are durable, reduce the vibrations that closed collision produced, avoid the bodily injury to operating personnel.

Description

Handle rigid contact prevention device used during shearing and closing of European bolt clippers

Technical Field

The invention relates to the field of tool devices, in particular to a handle rigid contact prevention device used when cutting and closing European style bolt clippers are cut.

Background

The European style wire clippers are mainly used for cutting wires, pipelines and the like with high rigidity, the ends of the European style wire clippers are provided with cutter heads for cutting, the lower ends of the cutter heads drive the cutter heads to carry out closed cutting through the transmission of two groups of rotating mechanisms, and the cutting of metal wires with high rigidity can be realized by applying small external force during working according to a lever principle by utilizing the transmission of the two groups of rotating mechanisms and the design of a long clipper handle.

In the actual use process of the wire clipper, the cutting initial section needs to apply a large force to an operator in order to press the jaw into a wire to damage the wire and cause a cut, then the inclined plane of the jaw cutter continues to move downwards to extend the cross section of the wire to two sides to rapidly finish the cutting of the wire, the rapid rigid collision contact of the lower part of the wire clipper is accompanied, the intensity of the collision contact is in direct proportion to the applied external force and the rigidity of the cut wire, the rigid collision contact of the wire clipper has a plurality of disadvantages, frequent rigid collision damages to the wire clipper, particularly obvious abrasion to a cutter head and a rotating mechanism of a cutting part, and meanwhile, vibration caused by the strong rigid collision is directly transmitted to a holding arm of the operator through a clipper handle, so that the physical health of the operator is influenced for a long time.

Based on this, a handle rigid contact prevention device for cutting and closing European wire clippers is needed.

Disclosure of Invention

The invention aims to provide a handle rigid contact prevention device for cutting and closing European bolt clippers, which solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a rigid contact device is prevented to handle when being used for european style bolt cutter to cut closure, is including setting up the subassembly that turns on first contact site and setting up the dwang subassembly on the second contact site, the subassembly that turns includes rotor plate and first under casing, and the rotor plate pivoted is installed on first under casing, the dwang subassembly includes dwang and second under casing, and the dwang rotates and installs on the second under casing, the installation carries out the elastic sliding block that elasticity is retardant to bolt cutter rigid contact between dwang and rotor plate, still installs in the first under casing and rotates along with the rotor plate and carry out the contact base subassembly that elasticity is retardant, it is equipped with folding connecting arm on the pincers handle that subassembly and dwang subassembly are close to handle one side to turn, be equipped with the vice buffer assembly who is used for retardant folding connecting arm to rotate, press from both sides tight folding connecting arm on the pincers handle.

As a further scheme of the invention: the end face, facing the rotating rod assembly, of the rotating plate is provided with a sliding groove, the sliding groove and the cutting pliers are in rotating track copying with the first pliers handle and the second pliers handle when the sliding groove and the cutting pliers are closed, an elastic sliding block is slidably mounted in the sliding groove, and the elastic sliding block is mounted at the end of the rotating rod.

As a still further scheme of the invention: the lateral separation distance of spout reduces from spout top to bottom linearity, the elasticity slider includes slider body, guide block and flexible piece, the bilateral symmetry of slider body be equipped with fixed connection's guide block, be equipped with in the spout with guide block assorted sliding tray, the bilateral symmetry of slider body installs flexible piece, and the one end of flexible piece is rotated and is installed on the slider body, and the rotation of flexible piece is connected the end and is set up the torsional spring, still is equipped with a plurality of group's springs between two flexible pieces, and the spring is fixed to be set up in the inside mounting groove rather than the mutual matching of slider body.

As a still further scheme of the invention: the end face of the sliding block body of the elastic sliding block is provided with a ball head connecting seat, the end of the rotating rod is provided with a movable ball head, and the rotating rod and the elastic sliding block are mutually connected through the matching of the movable ball head and the ball head connecting seat.

As a still further scheme of the invention: the contact base subassembly includes first contact base and second contact base, the fixed setting of first under casing is in first contact site department, is equipped with the pivot of rotation installation in the first under casing, is equipped with a plurality of adapter sleeves that are used for connecting the rotor plate in the pivot, be equipped with the lead screw section in the pivot, install the silk braid of mutually supporting with the lead screw section in the lead screw section, the silk braid is installed in first under casing rather than the movable chute that matches each other, install the first contact base towards the rotor plate on the silk braid, first contact base includes base and contact station, base fixed connection is on the silk braid, and the contact station is half cone platform form, and the arcwall face of contact station is towards elastic sliding block, elastic sliding block's end is equipped with the second contact base towards first contact base, is equipped with the contact piece of half cone platform form on the second contact base, and the arcwall face of contact piece is towards the contact station.

As a still further scheme of the invention: the contact table is also provided with a plurality of buffer contact pieces arranged at intervals.

As a still further scheme of the invention: the folding connecting arm comprises a first connecting arm and a second connecting arm, the ends of the first connecting arm and the second connecting arm are hinged, and the other ends of the first connecting arm and the second connecting arm rotate on the first forceps handle and the second forceps handle respectively.

As a still further scheme of the invention: the ends of the first connecting arm and the second connecting arm are provided with connecting rings which are sleeved on a fixedly arranged rotating shaft.

As a still further scheme of the invention: vice buffering subassembly includes transmission case and third under casing, transmission case and the fixed setting of third under casing are on the second pincers handle, be equipped with the lead screw of the pivot of connecting the dwang in the transmission case, the end that the dwang subassembly was kept away from to the lead screw is equipped with the connecting block, is equipped with the silk hole rather than matcing each other on the connecting block, and the connecting block passes through the silk hole and installs the end at the lead screw with the cooperation of lead screw, the one end of connecting block fixed connection traction lever, traction lever slidable mounting in the third under casing rather than matcing the mounting groove each other, the other end hinge of traction lever goes up pull rod and lower link, goes up the upper plate and the lower plate that the end hinge level of traction lever set up are kept away from to pull rod and upper plate, upper plate and lower plate are located the upper and lower both ends face on go-between one side respectively, still be equipped with a plurality of groups reset spring between upper plate and the lower plate.

As a still further scheme of the invention: the end faces, facing the connecting ring, of the upper clamping plate and the lower clamping plate are provided with continuous concave-convex structure blocks, and concave-convex structure blocks matched with the concave-convex structure blocks on the upper clamping plate and the lower clamping plate are arranged on the connecting ring.

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

1. the elastic sliding blocks are driven by the rotating rods to move to form a plurality of groups of elastic retardations, the sliding of the elastic sliding blocks to the bottom of the sliding chute is linearly hindered, meanwhile, the first contact seat and the second contact seat are gradually contacted and pressed along with the rotation, and the limitation and locking are carried out at the closed tail end of the bolt cutter, so that the rigid contact is effectively prevented;

2. the folding connecting arm is arranged at the tail end of the clamp handle, and the folding connecting arm is blocked and clamped by the auxiliary buffer component when the clamp handle is closed, so that a stable and continuous blocking effect is achieved when the clamp handle is cut and closed;

the comprehensive realization multiunit action is mutually supported, and the contact when the cooperative pair of bolt clipper is closed blocks and cushions, sets up the retarding mechanism of multiunit simultaneous working along the pincers handle end, and each other is supplementary and insurance, and effectual bolt clipper shearing rigid contact when closing of avoiding makes bolt clipper self durable, reduces the vibrations that the closure collision produced, avoids operating personnel's bodily injury.

Drawings

Fig. 1 is a structural schematic diagram of a handle rigid contact prevention device used for cutting and closing of the European bolt cutter.

Fig. 2 is a schematic structural diagram of a rotary plate in the handle rigid contact prevention device for cutting and closing the European bolt cutter.

Fig. 3 is a structural schematic diagram of an elastic sliding block in the handle rigid contact prevention device used for cutting and closing the European bolt cutter.

Fig. 4 is a structural schematic diagram of a first bottom case in the handle rigid contact prevention device for cutting and closing the European bolt cutter.

Fig. 5 is an operation schematic diagram of the first contact seat and the second contact seat in the rigid contact preventing device of the handle when the European bolt cutter is used for shearing and closing.

Fig. 6 is a schematic structural diagram of a first contact seat in the handle rigid contact prevention device for cutting and closing the European bolt cutter.

Fig. 7 is a structural schematic diagram of a folding connecting arm in the handle rigid contact prevention device for cutting and closing of the European bolt cutter.

Fig. 8 is a schematic structural diagram of a connecting ring and a rotating shaft in the handle rigid contact prevention device for cutting and closing of the European bolt cutter.

Fig. 9 is a schematic structural diagram of a third bottom case in the handle rigid contact prevention device for cutting and closing the European bolt cutter.

Fig. 10 is a working schematic diagram of the connecting ring clamped in the handle rigid contact prevention device when the European bolt cutter is used for shearing and closing.

Wherein: 1. a cutter head; 2. a splint; 3. a forceps handle; 31. a first plier handle; 32. a second forceps handle; 4. a grip; 5. a first contact portion; 6. a second contact portion; 7. turning over the plate assembly; 71. a rotating plate; 72. a chute; 73. an elastic slider; 731. a slider body; 732. a guide block; 733. a telescopic block; 734. a spring; 735. mounting grooves; 74. a first bottom case; 741. a rotating shaft; 742. connecting sleeves; 743. a movable groove; 744. a screw section; 745. sleeving the silk; 75. a first contact base; 751. a base; 752. a contact stage; 753. buffering the contact sheet; 76. a second contact base; 8. a rotating rod assembly; 81. rotating the rod; 82. a second bottom case; 9. a secondary buffer assembly; 901. a transmission case; 902. a third bottom case; 903. an upper splint; 904. a lower splint; 905. an upper pull rod; 906. a lower pull rod; 907. a draw bar; 908. connecting blocks; 909. a return spring; 910. a screw rod; 10. folding the connecting arm; 101. a first connecting arm; 102. a second connecting arm; 103. a connecting ring; 104. and rotating the shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

referring to fig. 1 to 6, in an embodiment of the present invention, a rigid contact preventing device for a handle of a european style wire clipper in cutting and closing includes a flipping board assembly 7 disposed on a first contact portion 5 and a rotating rod assembly 8 disposed on a second contact portion 6, the first contact portion 5 and the second contact portion 6 are disposed at the lower ends of a cutter head 1 and a clamping plate 2 of the wire clipper in opposition to each other, the first contact portion 5 and the second contact portion 6 are both disposed on a clipper handle 3, the lower end of the clipper handle 3 is provided with a handle 4, wherein the first contact portion 5 is disposed at the inner side of the first clipper handle 31, the second contact portion 6 is disposed at the inner side of the second clipper handle 32, the first contact portion 5 and the second contact portion 6 are rigidly contacted by rotating around an upper connecting pin shaft in cutting and closing of the wire clipper, the flipping board assembly 7 includes a rotating board 71 and a first bottom box 74, the rotating board 71 is rotatably mounted on the first bottom box 74, the rotating rod assembly 8 comprises a rotating rod 81 and a second bottom box 82, an elastic sliding block 73 with elastic retardation is arranged between the rotating rod 81 and the rotating plate 71 and is in rigid contact with the wire clippers, a contact base assembly with elastic retardation is further arranged in the first bottom box 74 and rotates along with the rotating plate 71, a sliding groove 72 is formed in the end face of the rotating plate 71 facing the rotating rod assembly 8, the sliding groove 72 is profiled on the rotating track of the first clamp handle 31 and the second clamp handle 32 when the first clamp handle is closed with the wire clippers, the elastic sliding block 73 is slidably arranged in the sliding groove 72, the end of the rotating rod 81 is arranged on the elastic sliding block 73, and the other end of the rotating rod 81 is rotatably arranged on the second bottom box 82.

Specifically, the transverse distance of the sliding groove 72 is linearly decreased from the top to the bottom of the sliding groove 72, the elastic sliding block 73 includes a sliding block body 731, a guide block 732 and a telescopic block 733, the guide block 732 is fixedly connected to two sides of the sliding block body 731 symmetrically, a sliding groove matched with the guide block 732 is arranged in the sliding groove 72, so that the sliding block body 731 is slidably mounted in the sliding groove 72, the telescopic block 733 is mounted symmetrically on two sides of the sliding block body 731, one end of the telescopic block 733 is rotatably mounted on the sliding block body 731, a torsion spring is arranged at the rotating connection end of the telescopic block 733, a plurality of groups of springs 734 are further arranged between the two telescopic blocks 733, the springs 734 are fixedly arranged in mounting grooves 735 which are matched with each other in the sliding block body 731, the elastic sliding block 73 slides in the sliding groove 72, and when moving to the bottom of the sliding groove 72, the transverse distance of the sliding groove 72 gradually decreases, the lateral extrusion force applied to the two telescopic blocks 733 is gradually increased, at this time, the two telescopic blocks 733 are continuously rotated towards the inside of the slider body 731 due to the limitation of the lateral distance of the sliding groove 72, the torsional spring at the connecting position is pulled to rotate by the rotation of the two telescopic blocks 733, so that the torsional spring is stretched, and meanwhile, the two telescopic blocks 733 are relatively rotated to compress a plurality of groups of springs 734 in the slider body 731, so that a plurality of groups of elastic force blocking are comprehensively formed, and the sliding of the elastic slider 73 towards the bottom of the sliding groove 72 is linearly blocked.

Specifically, be equipped with the bulb connecting seat on the terminal surface of slider body 731, the activity bulb is installed to the end of dwang 81, and dwang 81 and elastic sliding block 73 are through the cooperation interconnect of activity bulb and bulb connecting seat, and when the bolt clipper was cuted, along with the going on of cuting closed action, dwang 81 drove elastic sliding block 73 and slides in spout 72, and rotor plate 71 rotates thereupon simultaneously.

Specifically, the contact base assembly includes a first contact base 75 and a second contact base 76, the first bottom case 74 is fixedly disposed at the first contact portion 5, a rotating shaft 741 rotatably mounted is disposed in the first bottom case 74, the rotating shaft 741 is provided with a plurality of connecting sleeves 742 for connecting the rotating plate 71, when the rotating plate 71 rotates, the rotating shaft 741 is driven to rotate by the connecting sleeves 742, the rotating shaft 741 is provided with a screw rod section 744, the screw rod section 744 is provided with a screw sleeve 745 mutually matched with the screw rod section 744, the screw sleeve 745 is mounted in a movable slot 743 mutually matched with the first bottom case 74, the screw sleeve 745 is provided with the first contact base 75 facing the rotating plate 71, the first contact base 75 includes a base 751 and a contact platform 752, the base 751 is fixedly connected to the screw sleeve 752, the contact platform 752 is in a semi-conical platform shape, an arc-shaped surface of the contact platform faces the elastic slider 73, correspondingly, a second contact base 76 facing the first contact base 75 is arranged at the end of the elastic sliding block 73, a semi-conical contact block is also arranged on the second contact base 76, and the arc-shaped surface of the contact block faces the contact stage 752; when the wire cutting pliers cut and close wires, the rotating plate 71 is driven by the rotating rod 81, on one hand, the elastic sliding block 73 slides to the bottom of the rotating plate 71 along the sliding groove 72, on the other hand, the rotating plate 71 is driven to rotate clockwise, the rotating shaft 741 is driven to rotate through the transmission of the connecting sleeve 742 through the rotation of the rotating plate 71, at the moment, in the first bottom box 74, along with the rotation matching of the wire sleeve 745 and the wire rod section 744 and the guiding of the movable groove 743, the wire sleeve 745 is enabled to displace and move from left to right, when the elastic sliding block 73 moves to the bottom of the rotating plate 71, the second contact seat 76 is driven to move towards the first contact seat 75, the first contact seat 75 and the second contact seat 76 gradually contact and compress along with the rotation, the closed tail end of the wire cutting pliers is limited and locked, and the occurrence of rigid contact is effectively prevented.

The working principle of the invention is as follows:

the first contact part 5 and the second contact part 6 of the bolt cutter are respectively provided with a turning plate component 7 and a rotating rod component 8, wherein the end of the rotating rod 81 is connected with an elastic sliding block 73 in a sliding groove 72 on a rotating plate 71 to realize the connection of the turning plate component 7 and the rotating rod component 8, when the bolt cutter is in an opening and closing state, the elastic sliding block 73 is positioned at the top of the sliding groove 72, when the shearing work starts, the bolt cutter is closed, a first clamp handle 31 and a second clamp handle 32 move oppositely under the driving of external force, the rotating plate 71 pushes the elastic sliding block 73 to slide towards the bottom of the sliding groove 72 in the sliding groove 72, meanwhile, the rotating rod 81 rotates anticlockwise and the rotating plate 71 rotates clockwise, in the process that the elastic sliding block 73 slides from the top to the bottom of the sliding groove 72, as the transverse distance of the sliding groove 72 gradually decreases, the transverse extrusion force on the two telescopic blocks 733 gradually increases, and the two telescopic blocks 733 are limited by the transverse distance of the sliding groove 72, the sliding block body 731 is rotated continuously, the rotation pulls the torsion spring at the joint to rotate, so that the torsion spring is stretched, and meanwhile, the relative rotation of the two telescopic blocks 733 compresses a plurality of groups of springs 734 in the sliding block body 731, so that a plurality of groups of elastic force blocks are formed comprehensively, and the sliding of the elastic sliding block 73 to the bottom of the sliding groove 72 is blocked linearly; the clockwise rotation of the rotating plate 71 further drives the rotating shaft 741 to rotate through the connecting sleeve 742, the screw sleeve 745 is driven to horizontally move rightwards along the movable groove 743 through the matching of the screw rod and the screw sleeve in the first bottom box 74, when the elastic slider 73 slides to the bottom of the rotating plate 71 along the sliding groove 72, the second contact base 76 is driven to move towards the first contact base 75, the first contact base 75 and the second contact base 76 gradually contact and compress along with the rotation, the closed tail end of the wire clipper is limited and locked, and the rigid contact is effectively prevented; through mutually supporting of multiunit resilient means, the contact when the cooperative pair bolt clipper is closed retards and cushions, and the effectual rigid contact when avoiding the bolt clipper to cut the closure makes bolt clipper self durable, reduces the vibrations that closed collision produced, avoids operating personnel's bodily injury.

Example 2:

referring to fig. 7 to 10, in order to improve the rigid contact prevention capability of the european style wire clipper during cutting and closing, the function of the handle rigid contact prevention device for cutting and closing the european style wire clipper in embodiment 1 is upgraded, specifically:

the folding connecting arm 10 is arranged on the forceps handle 3, the folding connecting arm 10 comprises a first connecting arm 101 and a second connecting arm 102, the ends of the first connecting arm 101 and the second connecting arm 102 are hinged, the other ends of the first connecting arm 101 and the second connecting arm 102 are respectively rotated on the first forceps handle 31 and the second forceps handle 32, the ends of the first connecting arm 101 and the second connecting arm 102 are provided with a connecting ring 103, the connecting ring 103 is sleeved on a fixedly arranged rotating shaft 104, the rotating installation of the first connecting arm 101, the second connecting arm 102 and the forceps handle 3 is realized, the rotation of the forceps handle 3 during use is convenient to open and fold, and the second forceps handle 32 is provided with an auxiliary buffer assembly 9 for blocking the second connecting arm 102 from rotating and clamping the second connecting arm 102.

Specifically, the auxiliary buffering assembly 9 includes a transmission case 901 and a third bottom case 902, the transmission case 901 and the third bottom case 902 are fixedly disposed on the second caliper handle 32, a lead screw 910 connected to a rotating shaft of the rotating rod 81 is disposed in the transmission case 901, a connecting block 908 is disposed at an end of the lead screw 910 away from the rotating rod assembly 8, a screw hole matched with the connecting block 908 is disposed on the connecting block 908, the connecting block 908 is mounted at an end of the lead screw 910 through cooperation of the screw hole and the lead screw 910, the connecting block 908 is fixedly connected to one end of a drawbar 907, the drawbar 907 is slidably mounted in a limiting groove matched with the third bottom case 902 in the third bottom case 902, the other end of the drawbar 907 is hinged to an upper clamp plate 905 and a lower clamp plate 906, the ends of the upper clamp plate 905 and the upper clamp plate 905 away from the drawbar 905 are hinged to an upper clamp plate 903 and a lower clamp plate 904, the upper clamp plate 903 and the lower clamp plate 904 are respectively disposed on an upper end surface and a lower end surface of one side of the connecting ring 103, a plurality of groups of return springs 909 are also arranged between the upper clamp plate 903 and the lower clamp plate 904.

In a specific work, the shearing closing of the bolt cutter drives the rotating rod 81 in the rotating rod assembly 8 to rotate, the rotating rod 81 rotates to drive the screw rod 910 in the transmission case 901 to rotate, the connecting block 908 is driven to move rightwards in a matching mode, the draw bar 907 is pulled to move rightwards, the draw bar 907 pulls the upper clamp plate 903 and the lower clamp plate 904 through the upper draw bar 905 and the lower draw bar 906, the groove type design in the third bottom case 902 is utilized to press the upper draw bar 905 and the lower draw bar 906 to rotate, the upper clamp plate 903 and the lower clamp plate 904 are driven to move oppositely at the upper end and the lower end of the connecting ring 103, the reset spring 909 is pressed and is in a compression state, the upper clamp plate 903 and the lower clamp plate 904 are in contact with and press one side of the connecting ring 103 to block the rotation of the connecting ring 103, so that the folding of the connecting ring 103 is blocked, the wire cutting pliers play a stable and continuous retardation role during cutting and closing, and slow down or even prevent the occurrence of rigid collision during cutting and closing of the wire cutting pliers; when the bolt clipper is opened, the rotation of the rotating rod 81 drives the screw rod 910, the connecting block 908 and the traction rod 907 to move in opposite directions, and along with the elastic recovery action of the return spring 909, the compression blocking states of the upper clamp plate 903, the lower clamp plate 904 and the connecting ring 103 are released, so that the bolt clipper is smoothly opened without influencing the normal use of the bolt clipper.

Example 3:

on the basis of the embodiment 1 and the embodiment 2, the embodiment of the invention upgrades the functions of a handle rigid contact prevention device used for cutting and closing European style bolt clippers, and specifically comprises the following steps: the contact stage 752 is provided with a plurality of buffer contact pieces 753 arranged at intervals, so that the elastic limiting effect provided when the first contact base 75 and the second contact base 76 are contacted is improved through the arrangement of the buffer contact pieces 753, and meanwhile, the function of protecting the mechanisms of the first contact base 75 and the second contact base 76 is achieved.

In addition, in vice buffering subassembly 9, add the effect of establishing concave-convex structure piece promotion vice buffering subassembly 9, last splint 903 and lower splint 904 are equipped with continuous concave-convex structure piece on the terminal surface towards go-between 103, and the fixed concave-convex structure piece that is provided with that also corresponds on the go-between 103, and when last splint 903 and lower splint 904 contact compressed tightly the rotation of retardant go-between 103, through the setting of concave-convex structure piece structure, the frictional force of promotion contact surface improves retardant effect, and the adjusting capability of rigid contact is prevented to the hoisting device.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, in the description of the present invention, "a plurality" means two or more unless otherwise specified. A feature defined as "first," "second," etc. may explicitly or implicitly include one or more of the feature.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (9)

1. The utility model provides a handle when being used for european style bolt cutter to cut closure prevents rigid contact device, is including setting up group's (7) and the rotation lever subassembly (8) of setting on second contact site (6) of turning over on first contact site (5), a serial communication port, group's (7) of turning over includes rotor plate (71) and first under casing (74), and rotor plate (71) pivoted is installed on first under casing (74), rotation lever subassembly (8) are including dwang (81) and second under casing (82), and dwang (81) are rotated and are installed on second under casing (82), installation carries out the elasticity blocked elastic sliding block (73) to bolt cutter rigid contact between dwang (81) and rotor plate (71), still installs in first under casing (74) and rotate along with rotor plate (71) and carry out the contact base subassembly that elasticity is blocked, it is equipped with folding even handle (3) that handle (4) one side is close to group's (7) and rotation lever subassembly (8) is equipped with folding company The clamp comprises a connecting arm (10), wherein an auxiliary buffer assembly (9) used for blocking the folding connecting arm (10) from rotating and clamping the folding connecting arm (10) is arranged on the clamp handle (3);

the contact seat assembly comprises a first contact seat (75) and a second contact seat (76), the first bottom box (74) is fixedly arranged at a first contact part (5), a rotating shaft (741) which is rotatably installed is arranged in the first bottom box (74), a plurality of connecting sleeves (742) used for connecting a rotating plate (71) are arranged on the rotating shaft (741), a screw rod section (744) is arranged on the rotating shaft (741), a screw sleeve (745) which is matched with the screw rod section (744) is installed on the screw rod section (744), the screw sleeve (745) is installed in a movable groove (743) which is matched with the first bottom box (74) in the first bottom box, the first contact seat (75) facing the rotating plate (71) is installed on the screw sleeve (745), the first contact seat (75) comprises a base (751) and a contact platform (752), the base (751) is fixedly connected on the screw sleeve (745), and the contact platform (752) is in a semi-conical shape, the arc-shaped surface of the contact platform (752) faces the elastic sliding block (73), a second contact seat (76) facing the first contact seat (75) is arranged at the end of the elastic sliding block (73), a semi-conical platform-shaped contact block is arranged on the second contact seat (76), and the arc-shaped surface of the contact block faces the contact platform (752).

2. The handle rigid contact preventing device for the shearing closing of the European wire clippers according to claim 1, wherein a sliding groove (72) is formed in the end surface, facing the rotating rod assembly (8), of the rotating plate (71), the sliding groove (72) is profiled with the rotating tracks of the first clipper handle (31) and the second clipper handle (32) when the European wire clippers are closed, an elastic sliding block (73) is slidably mounted in the sliding groove (72), and the elastic sliding block (73) is mounted at the end of the rotating rod (81).

3. The handle rigid contact prevention device for the shearing closure of the European style bolt clipper as claimed in claim 2, characterized in that the transverse spacing of the runners (72) decreases linearly from the top to the bottom of the runners (72), the elastic sliding block (73) comprises a sliding block body (731), a guide block (732) and a telescopic block (733), the two sides of the sliding block body (731) are symmetrically provided with fixedly connected guide blocks (732), the sliding groove (72) is internally provided with a sliding groove matched with the guide blocks (732), the both sides symmetry of slider body (731) installs flexible piece (733), and the one end of flexible piece (733) is rotated and is installed on slider body (731), and the rotation of flexible piece (733) is connected the end and is set up the torsional spring, still is equipped with a plurality of groups spring (734) between two flexible pieces (733), and spring (734) are fixed to be set up in slider body (731) inside rather than mounting groove (735) that matches each other.

4. The handle rigid contact preventing device for the cutting closure of the European wire clippers as claimed in claim 1, wherein the end surface of the slider body (731) of the elastic slider (73) is provided with a ball head connecting seat, the end of the rotating rod (81) is provided with a movable ball head, and the rotating rod (81) and the elastic slider (73) are connected with each other through the matching of the movable ball head and the ball head connecting seat.

5. The handle anti-rigid contact device for the cutting closure of the European wire clippers according to claim 1, wherein the contact platform (752) is further provided with a plurality of spaced buffer contact pieces (753).

6. The handle rigid contact preventing device for the cutting closure of the European style wire clippers according to claim 1, wherein the folding connecting arm (10) comprises a first connecting arm (101) and a second connecting arm (102), the ends of the first connecting arm (101) and the second connecting arm (102) are hinged, and the other ends of the first connecting arm (101) and the second connecting arm (102) are respectively rotated on the first plier handle (31) and the second plier handle (32).

7. The handle rigid contact preventing device for the shearing closing of the European wire clippers according to claim 6, wherein the ends of the first connecting arm (101) and the second connecting arm (102) are provided with connecting rings (103), and the connecting rings (103) are sleeved on a fixedly arranged rotating shaft (104).

8. The handle rigid contact preventing device for the shearing and closing of the European wire clippers according to claim 7, wherein the auxiliary buffering assembly (9) comprises a transmission case (901) and a third bottom case (902), the transmission case (901) and the third bottom case (902) are fixedly arranged on the second clipper handle (32), a lead screw (910) for connecting the rotating shaft of the rotating rod (81) is arranged in the transmission case (901), a connecting block (908) is arranged at the end of the lead screw (910) far away from the rotating rod assembly (8), a screw hole matched with the connecting block (908) is arranged on the connecting block (908), the connecting block (908) is arranged at the end of the lead screw (910) through the matching of the screw hole and the lead screw (910), the connecting block (908) is fixedly connected with one end of the pull rod (907), and the pull rod (907) is slidably arranged in a mounting groove matched with the pull rod (902) in the third bottom case (902), the other end of the draw bar (907) is hinged with an upper draw bar (905) and a lower draw bar (906), the ends of the upper draw bar (905) and the upper draw bar (905) far away from the draw bar (907) are hinged with an upper clamping plate (903) and a lower clamping plate (904) which are horizontally arranged, the upper clamping plate (903) and the lower clamping plate (904) are respectively positioned on the upper end face and the lower end face of one side of the connecting ring (103), and a plurality of groups of reset springs (909) are further arranged between the upper clamping plate (903) and the lower clamping plate (904).

9. The device for preventing rigid contact of the handle when the European style bolt clipper is cut and closed as claimed in claim 8, wherein the end surfaces of the upper clamping plate (903) and the lower clamping plate (904) facing the connecting ring (103) are provided with continuous concave-convex structure blocks, and the connecting ring (103) is provided with concave-convex structure blocks which are matched with the concave-convex structure blocks on the upper clamping plate (903) and the lower clamping plate (904).

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