CN112571351B

CN112571351B - Two-section bending type wrench with function of rapidly opening clamping jaw

Info

Publication number: CN112571351B
Application number: CN202110017261.4A
Authority: CN
Inventors: 高征昭
Original assignee: Guangzhou Zhaozhixiang Technology Co ltd
Current assignee: Guangzhou Zhaozhixiang Technology Co ltd
Priority date: 2021-01-07
Filing date: 2021-01-07
Publication date: 2023-03-28
Anticipated expiration: 2041-01-07
Also published as: CN112571351A

Abstract

The invention relates to the related field of hardware, and discloses a two-section bending type wrench with a function of quickly opening a clamping jaw, which comprises an intermediate body, wherein two rotating connecting blocks which are mutually symmetrical left and right are hinged to the left and right of the intermediate body, two fixed connecting blocks which are mutually symmetrical left and right are fixedly connected to the left and right end faces of the intermediate body, and a fixed friction plate is fixedly connected to the upper end face of each fixed connecting block.

Description

Two-section bending type wrench with function of rapidly opening clamping jaw

Technical Field

The invention relates to the related field of hardware, in particular to a two-section bending type wrench with a function of quickly opening a clamping jaw.

Background

Five kinds of metal products's general names are five kinds of metal products to the five metals, and the spanner belongs to one of the five metals products, and when present simple structure's spanner was used in comparatively narrow and small working space, because the length of spanner is fixed, be difficult to effectual alignment bolt or nut in the use, if the spanner inclines certain angle then can adapt to less working space, nevertheless use the spanner this moment and be difficult to implement enough big moment, and on the other hand, the spanner all need adjust the jack catch when using at every turn, and this has influenced work efficiency.

Disclosure of Invention

The invention aims to provide a two-section bending type wrench with a function of quickly opening a clamping jaw, which can overcome the defects in the prior art, so that the practicability of equipment is improved.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a two-section bending type wrench with a jaw quick opening function, which comprises an intermediate body, the middle body is hinged with two rotating connecting blocks which are symmetrical left and right, the left end surface and the right end surface of the middle body are fixedly connected with two fixed connecting blocks which are symmetrical left and right, the upper end surface of the fixed connecting block is fixedly connected with a fixed friction plate, the left and right end surfaces of the intermediate body are fixedly connected with two extrusion connecting blocks which are mutually symmetrical left and right and are positioned at the upper side of the fixed connecting block, an extension belt cavity extending rightwards into the right side of the extrusion connecting block is arranged in the middle body, an extrusion belt cavity extending rightwards into the right side of the extrusion connecting block and leftwards into the left side of the extrusion connecting block is arranged at the lower side of the extension belt cavity, the upper end wall of the extrusion belt cavity is connected with a conversion rotating shaft which extends upwards to penetrate through the extrusion belt cavity to the outside and extends downwards to the extrusion belt cavity in a rotating and matching way, the tail end of the upper side of the conversion rotating shaft is fixedly connected with a conversion knob, an extrusion intermediate belt wheel fixedly connected with the conversion rotating shaft is arranged in the extrusion belt cavity, a pressurizing movable cavity which is positioned at the lower side of the extruding belt cavity and has a downward opening is arranged in the extruding connecting block, the upper end wall of the pressurizing movable cavity is connected with a screw rod for extrusion which extends upwards into the extruding belt cavity and downwards into the pressurizing movable cavity in a rotating and matching way, the extrusion belt cavity is internally provided with an extrusion belt wheel fixedly connected with the extrusion screw rod, the left and right extrusion belt wheels are connected with an extrusion belt in a power fit way, the belt for extrusion is connected with the belt wheel in the middle of extrusion in a power fit mode, and the side wall of the pressurizing movable cavity is connected with an extrusion sliding block in a sliding fit mode and in threaded fit connection with the screw rod for extrusion.

On the basis of the technical scheme, terminal surface fixedly connected with extrusion friction plate under the extrusion slider, the left side pressurization activity chamber left side intercommunication is equipped with opens the transmission chamber, the left side fixedly connected with opens and uses the rack in the extrusion slider left end face, it is connected with and extends forward to open the transmission chamber rear end wall normal running fit open the driving shaft that opens in the transmission chamber, open the transmission intracavity be equipped with open driving shaft fixed connection and with open with rack toothing's the driving gear that opens, it is equipped with and is located the left side to open the transmission chamber downside the left switching-over transmission chamber in pressurization activity chamber, switching-over transmission chamber upper end wall normal running fit is connected with and upwards extends to open the transmission intracavity and downwardly extending to the driven shaft that opens in the switching-over transmission intracavity, open the transmission intracavity be equipped with open driven shaft fixed connection and with open the driven gear that the meshing of driving gear front end face opened, be equipped with in the switching-over transmission intracavity with open driven shaft fixed connection's switching-over main bevel gear, switching-over transmission chamber left side is equipped with the automatic main friction chamber that opens the opening downwards, automatic main friction chamber right end wall normal running fit is connected with extend to right side to extend to the switching-over left side in the automatic transmission chamber.

On the basis of the technical scheme, a reversing slave bevel gear which is fixedly connected with the reversing driven shaft and meshed with the reversing master bevel gear is arranged in the reversing transmission cavity, a one-way bearing which is fixedly connected with the reversing driven shaft is arranged in the automatic master friction cavity, an automatic master friction wheel is fixedly connected to the one-way bearing, the intermediate body is provided with an automatic slave friction cavity which corresponds to the automatic master friction cavity and has an upward opening, a left square body is fixedly connected to the left end face of the rotating connecting block on the left side, an adjusting sliding cavity which has a leftward opening is arranged in the left square body, an automatic bevel gear cavity is arranged on the right side of the adjusting sliding cavity, an automatic drive shaft which extends rightwards into the automatic slave friction cavity and extends leftwards into the automatic bevel gear cavity is connected in a rotating fit manner to the right end wall of the automatic bevel gear cavity, an automatic slave friction wheel which is fixedly connected with the automatic drive shaft is arranged in the automatic slave friction cavity, an automatic master bevel gear which is fixedly connected with the automatic bevel gear is arranged in the automatic bevel gear cavity, an adjusting clutch cavity is arranged on the upper side of the automatic bevel gear cavity, a lower end wall of the adjusting clutch cavity rotates and extends upwards into the adjusting clutch cavity and extends downwards, and the automatic slave friction wheel is connected with the automatic slave bevel gear, and the automatic slave bevel gear is meshed with the automatic slave drive shaft, and the automatic slave bevel gear.

On the basis of the technical scheme, an automatic adjusting gear fixedly connected with an automatic driven shaft is arranged in the adjusting clutch cavity, a pressing cavity with an upward opening is arranged on the upper side of the adjusting clutch cavity, a pressing block is connected to the side wall of the pressing cavity in a sliding fit manner, an adjusting bevel gear cavity is arranged in the pressing block, an adjusting intermediate shaft which extends into the adjusting bevel gear cavity and extends downwards into the adjusting clutch cavity is connected to the lower end wall of the adjusting bevel gear cavity in a rotating fit manner, an adjusting intermediate gear fixedly connected with the adjusting intermediate shaft is arranged in the adjusting clutch cavity, an adjusting secondary bevel gear fixedly connected with the adjusting intermediate shaft is arranged in the adjusting bevel gear cavity, an adjusting friction cavity with an upward opening is arranged on the right side of the adjusting bevel gear cavity, an adjusting driving shaft which extends into the adjusting friction cavity rightwards and extends leftwards into the adjusting bevel gear cavity is connected to the adjusting bevel gear cavity in a rotating fit manner, an adjusting primary bevel gear fixedly connected with the adjusting bevel gear is arranged in the adjusting bevel gear cavity, an adjusting friction wheel fixedly connected with the adjusting driving shaft is arranged in the adjusting friction cavity, and an adjusting spring pressing end wall between the lower end wall of the pressing block and the pressing spring.

On the basis of the technical scheme, the end wall internal rotation fit is connected with upwards extends to adjust separation and reunion intracavity and downwardly extending to adjust the lead screw for regulation in the slip intracavity, adjust the separation and reunion intracavity be equipped with lead screw fixed connection's regulation friction ring for regulation, fixedly connected with adjusts driven gear on the regulation friction ring, adjust driven gear with adjust the intermediate gear meshing, sliding fit is connected with between the end wall around the regulation slip chamber with the regulation slider that the lead screw thread fit is connected, slider left end face fixedly connected with collet, left side cuboid left end face fixedly connected with is located the stationary dog of collet upside, stretch out the belt intracavity be equipped with conversion rotating shaft fixed connection stretch out the main belt wheel, the right side pressurization movable chamber right side is equipped with the opening decurrent main friction chamber that stretches out, it is equipped with and stretches out the awl tooth chamber to stretch out awl tooth chamber upper end wall internal rotation fit and be connected with upwards extend to stretch out the belt intracavity and downwardly extending to stretch out the downward transmission shaft in the awl tooth chamber, stretch out the belt intracavity be equipped with stretch out from the follow pulley of downward transmission shaft fixed connection.

On the basis of the technical scheme, a stretching belt is connected between the stretching slave belt wheel and the stretching master belt wheel in a power fit mode, a stretching master bevel gear fixedly connected with the downward transmission shaft is arranged in the stretching bevel gear cavity, a stretching master driving shaft which extends rightwards into the stretching bevel gear cavity and extends leftwards into the stretching master friction cavity is connected with the stretching slave bevel gear in a rotating fit mode in the left end wall of the stretching bevel gear cavity, a stretching slave bevel gear fixedly connected with the stretching master bevel gear is arranged in the stretching bevel gear cavity, the stretching slave bevel gear is meshed with the stretching master bevel gear, a stretching master friction wheel fixedly connected with the stretching master driving shaft is arranged in the stretching master friction cavity, a stretching slave friction cavity which corresponds to the stretching master friction cavity and is provided with an upward opening is arranged in the intermediate body, a stretching belt cavity which extends downwards is arranged on the left side of the stretching slave friction cavity, a stretching belt cavity right end wall of the stretching belt is connected with a rotating fit mode and extends rightwards into the stretching slave friction cavity and extends leftwards into the stretching belt in the stretching cavity, and a stretching slave friction wheel fixedly connected with the stretching slave driven shaft is arranged in the stretching friction cavity.

On the basis of the technical scheme, extend the belt intracavity be equipped with stretch out driven shaft fixed connection's extension main belt wheel, it is equipped with opening right extension activity chamber to extend belt chamber right side, it is connected with the right extension to extend activity chamber left end wall normal running fit extend the activity intracavity and extend left extend to extend the lead screw for extension in the belt intracavity, extend the belt intracavity be equipped with extend with lead screw fixed connection's extension belt chamber, extend the belt chamber with extend between the main belt wheel power fit be connected with extend and use the belt, extend activity chamber lateral wall sliding fit be connected with extend with the extension piece that lead screw thread fit is connected.

The invention has the beneficial effects that: when workspace is comparatively narrow and narrow, cancel the fixed of rotatory connecting block through rotating conversion knob, the user can the relative angle of rotating the connecting block of midbody this moment, thereby realize using the spanner in narrow and narrow workspace, when the cancellation is fixed to the rotatory connecting block, the extension drives one section distance of extension piece right slip with the lead screw, thereby arm of force length has been increased, the realization is convenient for the user to implement the moment of enough size when being suitable for narrow and small space, simultaneously the movable claw is opened to the maximum position, user's operation has been simplified, through pressing the design of rotary type regulation friction pulley, the realization can also freely adjust when the movable claw can be opened rapidly.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

The invention is further illustrated by the following examples in conjunction with the drawings.

FIG. 1 is a schematic view of an overall structure of a two-piece bending wrench with a function of rapidly opening jaws according to the present invention.

Fig. 2 is an enlarged schematic view of a structure in fig. 1.

Fig. 3 is an enlarged schematic view of B in fig. 1.

Fig. 4 is an enlarged schematic view of the structure at C in fig. 1.

Fig. 5 is an enlarged schematic view of the structure at D in fig. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-5, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

Combine two-section bending type spanner that function was opened rapidly to follow intermediate 1-5, including midbody 20, there are two mutual symmetry's about articulated rotation connecting block 21 about midbody 20, terminal surface fixedly connected with two mutual symmetry's about midbody 20 fixed connection block 18 about, fixed connection block 18 up end fixedly connected with fixed friction plate 19, terminal surface fixedly connected with about midbody 20 both sides mutual symmetry and lie in the extrusion connecting block 85 of fixed connection block 18 upside, be equipped with in the midbody 20 and extend to the right side rightwards stretch out belt chamber 64 in the extrusion connecting block 85, it is equipped with right side extension to the right side to stretch out belt chamber 64 downside extend to the right side rightwards in the extrusion connecting block 85 and extend to the left side leftwards extrusion belt chamber 66 in the extrusion connecting block 85, the upper end wall of the extrusion belt cavity 66 is connected with a conversion rotating shaft 61 which extends upwards and penetrates through the extrusion belt cavity 64 to the outside and extends downwards into the extrusion belt cavity 66 in a rotating and matching manner, the tail end of the upper side of the conversion rotating shaft 61 is fixedly connected with a conversion knob 62, an extrusion intermediate belt wheel 65 which is fixedly connected with the conversion rotating shaft 61 is arranged in the extrusion belt cavity 66, a pressurizing movable cavity 55 which is positioned at the lower side of the extrusion belt cavity 66 and has a downward opening is arranged in the extrusion connecting block 85, the upper end wall of the pressurizing movable cavity 55 is connected with a screw rod 56 for extrusion which extends upwards into the extrusion belt cavity 66 and extends downwards into the pressurizing movable cavity 55 in a rotating and matching manner, a belt wheel 57 for extrusion which is fixedly connected with the screw rod 56 for extrusion is arranged in the extrusion belt cavity 66, and a belt 67 for extrusion is connected between the left belt wheel 57 and the right belt wheel for extrusion in a power matching manner, the belt 67 for extrusion is connected with the extrusion intermediate belt wheel 65 in a power fit manner, and the side wall of the pressurization movable cavity 55 is connected with the extrusion sliding block 54 in a sliding fit manner, wherein the extrusion sliding block is connected with the screw rod 56 for extrusion in a threaded fit manner.

In addition, in an embodiment, an extrusion friction plate 53 is fixedly connected to the lower end face of the extrusion slider 54, an opening transmission cavity 40 is communicated with the left side of the pressurization movable cavity 55, an opening driving gear 86 for opening is fixedly connected to the left end face of the extrusion slider 54 on the left side, an opening driving shaft 59 extending forward into the opening transmission cavity 40 is connected to the rear end wall of the opening transmission cavity 40 in a rotationally matched manner, an opening driving gear 58 fixedly connected to the opening driving shaft 59 and engaged with the opening rack 86 is arranged in the opening transmission cavity 40, a reversing transmission cavity 52 located on the left side of the pressurization movable cavity 55 is arranged on the lower side of the opening transmission cavity 40, an opening driven shaft 42 extending upward into the opening transmission cavity 40 and extending downward into the reversing transmission cavity 52 is connected to the upper end wall of the reversing transmission cavity 52 in a rotationally matched manner, an opening driven gear 41 fixedly connected to the opening transmission cavity 42 and engaged with the front end face of the opening driven shaft driving gear 58 is arranged in the opening transmission cavity 40, a reversing main bevel gear 51 fixedly connected to the opening transmission cavity 42 is arranged in the reversing transmission cavity 52 and fixedly connected to the opening driven shaft 42, an automatic main friction cavity 43 extending leftward and rotating in a reversing transmission cavity 50.

In addition, in an embodiment, a reversing driven bevel gear 49 fixedly connected with the reversing driven shaft 50 and meshed with the reversing main bevel gear 51 is arranged in the reversing transmission cavity 52, a one-way bearing 45 fixedly connected with the reversing driven shaft 50 is arranged in the automatic driving friction cavity 43, an automatic driving friction wheel 44 is fixedly connected to the one-way bearing 45, an automatic driven friction cavity 48 corresponding to the automatic driving friction cavity 43 and having an upward opening is arranged in the intermediate body 20, a left square body 10 is fixedly connected to a left end face of the left rotating connecting block 21, an adjusting sliding cavity 17 having a leftward opening is arranged in the left square body 10, an automatic bevel gear cavity 15 is arranged on a right side of the adjusting sliding cavity 17, an automatic driving shaft 46 extending rightwards into the automatic driven friction cavity 48 and extending leftwards is connected in a rotationally matched manner to the wall of the right end of the automatic bevel gear cavity 15, an automatic driven friction wheel 47 fixedly connected with the automatic driven shaft 46 is arranged in the automatic driven friction cavity 48, an automatic driven shaft 16 fixedly connected with the automatic driven shaft 46 is arranged in the automatic driven bevel gear cavity 15, an automatic driven shaft 29 extends upwards and is connected to the automatic bevel gear cavity, and an automatic clutch bevel gear cavity 33 is arranged in a clutch cavity 29 and connected to the automatic driven shaft 15, and the automatic bevel gear cavity 29.

In addition, in an embodiment, an automatic adjusting gear 32 fixedly connected with the automatic driven shaft 33 is arranged in the adjusting clutch cavity 29, a pressing cavity 27 with an upward opening is arranged on the upper side of the adjusting clutch cavity 29, a pressing block 26 is connected to the side wall of the pressing cavity 27 in a sliding fit manner, an adjusting bevel cavity 38 is arranged in the pressing block 26, an adjusting intermediate shaft 28 extending upward into the adjusting bevel cavity 38 and downward into the adjusting clutch cavity 29 is connected to the lower end wall of the adjusting bevel cavity 38 in a rotating fit manner, an adjusting intermediate gear 31 fixedly connected with the adjusting intermediate shaft 28 is arranged in the adjusting clutch cavity 29, an adjusting secondary bevel gear 39 fixedly connected with the adjusting intermediate shaft 28 is arranged in the adjusting bevel cavity 38, an adjusting friction cavity 35 with an upward opening is arranged on the right side of the adjusting bevel cavity 38, an adjusting primary gear 37 fixedly connected with the adjusting drive shaft 36 is connected to the left end wall of the adjusting friction cavity 35 in a rotating fit manner, an adjusting intermediate gear 36 extending rightward into the adjusting bevel cavity 35 and leftward extending into the adjusting bevel cavity 38 is connected to the adjusting bevel cavity 38, an adjusting primary gear 37 fixedly connected with the pressing block 35, and a pressing spring 34 is connected to the lower end surface of the adjusting bevel gear 34.

In addition, in an embodiment, the inner rotation fit connection of the lower end wall of the adjusting clutch cavity 29 is connected with an upward extending part of the adjusting clutch cavity 29 and extends downward to the adjusting screw rod 25 in the adjusting sliding cavity 17, the adjusting clutch cavity 29 is provided with an adjusting friction ring 24 fixedly connected with the adjusting screw rod 25, the adjusting friction ring 24 is fixedly connected with an adjusting driven gear 23, the adjusting driven gear 23 is engaged with the adjusting intermediate gear 31, the adjusting sliding cavity 17 is connected with an adjusting slider 13 in a screw fit connection with the adjusting screw rod 25, the adjusting slider 13 is fixedly connected with a movable claw 12 on the left end face, the left end face of the left square body 10 is fixedly connected with a fixed claw 11 on the upper side of the movable claw 12, the extending belt cavity 64 is provided with an extending main belt pulley 60 fixedly connected with the converting rotating shaft 61, the right side of the pressurizing movable cavity 55 is provided with an extending main friction cavity 82 with a downward opening, the extending main friction cavity 82 is provided with an extending bevel gear cavity 80 on the right side of the extending main friction cavity, the upper end wall of the extending bevel gear cavity 80 is connected with an upward extending part of the rotating shaft 83 and extends downward from the inner rotation fit connection of the rotating belt cavity 83 and extends downward from the fixed belt pulley 64 to the lower transmission shaft 83 and extends downward.

In addition, in one embodiment, an extending belt 63 is connected between the extending secondary pulley 84 and the extending primary pulley 60 in a power fit manner, an extending primary bevel gear 81 fixedly connected with the downward transmission shaft 83 is arranged in the extending bevel gear chamber 80, an extending primary driving shaft 69 extending rightward into the extending bevel gear chamber 80 and extending leftward into the extending primary friction chamber 82 is connected in a left end wall of the extending bevel gear chamber 80 in a rotation fit manner, an extending secondary bevel gear 79 fixedly connected with the extending primary driving shaft 69 is arranged in the extending bevel gear chamber 80, the extending secondary bevel gear 79 is engaged with the extending primary bevel gear 81, an extending primary friction wheel 68 fixedly connected with the extending primary driving shaft 69 is arranged in the extending primary friction chamber 82, an extending secondary friction chamber 78 corresponding to the extending primary friction chamber 82 and opening upward is arranged in the intermediate body 20, an extending belt chamber 74 extending downward is arranged on a left side of the extending secondary friction chamber 78, an extending belt chamber 70 extending rightward into the extending secondary friction chamber 78 and extending leftward from the extending secondary friction chamber 70 is connected in a rotation fit manner, and an extending belt chamber 70 extending from the driven shaft 70 is connected with the extending secondary friction wheel 72 extending from the extending primary friction chamber 78.

In addition, in an embodiment, be equipped with in the extension belt chamber 74 with stretch out driven shaft 70 fixed connection's extension main belt wheel 71, extension belt chamber 74 right side is equipped with the extension activity chamber 77 that the opening is right, extend activity chamber 77 left end internal rotation cooperation be connected with extend right extend to extend in the activity chamber 77 and extend left extend to extend the lead screw 76 for extension in the belt chamber 74, be equipped with in the extension belt chamber 74 with extend with lead screw 76 fixed connection's extension belt chamber 75, extend belt chamber 75 with extend between the main belt wheel 71 power fit be connected with extend with belt 73, extend activity chamber 77 lateral wall sliding fit be connected with extend with extension block 22 that lead screw 76 screw thread fit is connected.

The fixing and connecting method in this embodiment includes, but is not limited to, bolting, welding, and the like.

As shown in fig. 1-5, when the device of the present invention is in the initial state, the pressing spring 30 is in the relaxed state, the adjusting friction wheel 34 is just partially located outside, the adjusting intermediate gear 31 is just meshed with the automatic adjusting gear 32, the rotating connecting block 21 is parallel to the intermediate body 20, the automatic main friction wheel 44 is just abutted with the automatic auxiliary friction wheel 47, the extended main friction wheel 68 is just abutted with the extended auxiliary friction wheel 72, the extrusion friction plate 53 is just abutted with the upper end surface of the rotating connecting block 21, and the extension block 22 is just completely located in the extended movable cavity 77;

sequence of mechanical actions of the whole device:

when the automatic adjusting device starts to work, a user presses and rotates the adjusting friction wheel 34 to drive the adjusting driving shaft 36 to rotate, at the moment, the pressing block 26 overcomes the pressing spring 30 to slide downwards for a certain distance, meanwhile, the adjusting intermediate gear 31 is just disengaged from the automatic adjusting gear 32, the adjusting driving shaft 36 drives the adjusting main bevel gear 37 to rotate, so that the adjusting auxiliary bevel gear 39 is driven to rotate, the adjusting auxiliary bevel gear 39 drives the adjusting intermediate shaft 28 to rotate, so that the adjusting driven gear 23 is driven to rotate, the adjusting driven gear 23 drives the adjusting screw rod 25 to rotate through the adjusting friction ring 24, so that the adjusting slide block 13 and the movable claw 12 are driven to move upwards or downwards, and the subsequent use of the user is facilitated;

when the working space is narrow, the conversion rotary shaft 61 is driven to rotate by rotating the conversion knob 62, so that the extension main belt wheel 60 and the extrusion intermediate belt wheel 65 are driven to rotate, the extrusion intermediate belt wheel 65 drives the extrusion belt wheel 57 to rotate through the extrusion belt 67, so that the extrusion screw rod 56 is driven to rotate, the extrusion screw rod 56 drives the extrusion sliding block 54 and the extrusion friction plate 53 to slide upwards, so that the fixing of the rotary connecting block 21 is cancelled, and at the moment, a user can freely rotate the angle of the intermediate body 20 relative to the rotary connecting block 21, so that a wrench can be used in the narrow working space;

the extension main belt wheel 60 rotates by driving the extension auxiliary belt wheel 84 to rotate through the extension belt 63 while extruding the middle belt wheel 65 to rotate, so as to drive the downward transmission shaft 83 to rotate, the downward transmission shaft 83 drives the extension main bevel gear 81 to rotate, the extension main bevel gear 81 drives the extension driving shaft 69 to rotate through the extension auxiliary bevel gear 79, so as to drive the extension main friction wheel 68 to rotate, the extension main friction wheel 68 drives the extension driven shaft 70 to rotate through the extension auxiliary friction wheel 72, so as to drive the extension main belt wheel 71 to rotate, the extension main belt wheel 71 drives the extension belt cavity 75 to rotate through the extension belt 73, so as to drive the extension lead screw 76 to rotate, the extension lead screw 76 drives the extension block 22 to slide rightwards for a certain distance, so as to increase the length of the force arm, and realize that a user can implement enough torque under a belt while being suitable for a narrow space;

the left extrusion sliding block 54 drives the opening driving gear 58 to rotate through the opening rack 86 while sliding upwards, so as to drive the opening driven gear 41 to rotate, the opening driven gear 41 drives the reversing main bevel gear 51 to rotate through the opening driven shaft 42, so as to drive the reversing slave bevel gear 49 to rotate, the reversing slave bevel gear 49 drives the reversing driven shaft 50 to rotate, at this time, the reversing driven shaft 50 just can drive the automatic main friction wheel 44 to rotate through the one-way bearing 45, so as to drive the automatic slave friction wheel 47 to rotate, the automatic slave friction wheel 47 drives the automatic driving shaft 46 to rotate, so as to drive the automatic main bevel gear 16 to rotate, the automatic main bevel gear 16 drives the automatic driven shaft 33 to rotate through the automatic slave bevel gear 14, so as to drive the automatic adjusting gear 32 to rotate, the automatic adjusting gear 32 drives the adjusting driven gear 23 to rotate through the adjusting intermediate gear 31, so as to drive the adjusting screw rod 25 to rotate through the adjusting friction ring 24, the adjusting screw rod 25 drives the adjusting sliding block 13 and the movable jaw 12 to slide downwards, when the lower end surface of the adjusting screw rod 13 contacts with the lower end wall of the lower end surface of the adjusting sliding cavity 17, the movable jaw 12 is at the maximum opening position, so as to enable the user to perform the automatic idle rotation of the intermediate body 20, thereby simplifying the user operation of the movable jaw 62;

when the spanner needs to reset, the user makes the midbody 20 parallel to the rotating connecting block 21, and the reversing is performed by rotating the switching knob 62, so that the extrusion sliding block 54 and the extrusion friction plate 53 are finally driven to slide downwards to abut against the rotating connecting block 21, the midbody 20 and the rotating connecting block 21 are fixed, meanwhile, the reversing driven shaft 50 just can not drive the automatic main friction wheel 44 to rotate through the one-way bearing 45, so that the movable claw 12 is prevented from being closed, subsequent use is facilitated, and meanwhile, the extension screw rod 76 for reversing drives the extension block 22 to slide leftwards to just be completely positioned in the extension movable cavity 77.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a two-stage segment formula spanner of buckling with function is opened rapidly to jack catch, includes midbody, its characterized in that: the rotary connecting blocks are hinged to the left and the right of the intermediate body, the left and the right end faces of the intermediate body are fixedly connected with two fixed connecting blocks which are symmetrical to each other, the upper end face of each fixed connecting block is fixedly connected with a fixed friction plate, the left and the right end faces of the intermediate body are fixedly connected with two extrusion connecting blocks which are symmetrical to each other and are positioned on the upper sides of the fixed connecting blocks, an extension belt cavity extending to the right side in the extrusion connecting blocks is arranged in the intermediate body, the lower side of the extension belt cavity is provided with an extrusion belt cavity extending to the right side rightwards in the extrusion connecting blocks and extending to the left side in the extrusion connecting blocks, the upper end wall of the extrusion belt cavity is in rotary fit connection with a conversion rotating shaft which extends upwards and penetrates through the extension belt cavity to the outside and extends downwards in the extrusion belt cavity, conversion rotating shaft upside terminal fixedly connected with conversion knob, be equipped with in the extrusion belt cavity with conversion rotating shaft fixed connection's extrusion middle belt pulley, be equipped with in the extrusion connecting block and be located extrusion belt cavity downside and opening decurrent pressurization movable chamber, pressurization movable chamber upper end wall internal rotation fit is connected with upwards extends to extrusion belt cavity and downwardly extending to the lead screw for the extrusion in the pressurization movable chamber, be equipped with in the extrusion belt cavity with the extrusion is with lead screw fixed connection's for the extrusion band pulley, control power fit is connected with the belt for the extrusion between the band pulley for the extrusion, the belt for the extrusion with extrusion middle belt pulley power fit connects, pressurization movable chamber lateral wall sliding fit be connected with the extrusion slider of lead screw thread fit connection for the extrusion.

2. The wrench of claim 1, wherein the two-piece wrench is a two-piece wrench with a jaw quick-open function, the two-piece wrench comprising: terminal surface fixedly connected with extrusion friction plate under the extrusion slider, the left side pressurization activity chamber left side intercommunication is equipped with opens the transmission chamber, the left side fixedly connected with opens and uses the rack in the extrusion slider left end face, it has forward extension to open the transmission intracavity open the driving shaft, open the transmission intracavity be equipped with open driving shaft fixed connection and with open with rack toothing's the driving gear that opens, it is equipped with and is located the left side to open the transmission chamber downside the left switching-over transmission chamber in pressurization activity chamber, switching-over transmission chamber upper end wall normal running fit is connected with upwards extend to open the transmission intracavity and downwardly extending to the driven shaft of opening in the switching-over transmission intracavity, open the transmission intracavity be equipped with open driven shaft fixed connection and with open the driven gear that opens driving gear preceding terminal surface meshing, be equipped with in the switching-over transmission intracavity with open driven shaft fixed connection's switching-over main bevel gear, switching-over transmission chamber left side is equipped with the automatic main friction chamber that the opening is decurrent, automatic main friction chamber right end wall normal running fit is connected with extends to right side to in the switching-over transmission intracavity and extend to left side to the switching-over in the automatic main friction chamber.

3. The wrench of claim 2, wherein the two-stage bending wrench has a jaw opening function, and the two-stage bending wrench comprises: the automatic clutch device is characterized in that a reversing slave bevel gear which is fixedly connected with the reversing driven shaft and meshed with the reversing master bevel gear is arranged in the reversing transmission cavity, a one-way bearing which is fixedly connected with the reversing driven shaft is arranged in the automatic master friction cavity, an automatic master friction wheel is fixedly connected onto the one-way bearing, an intermediate body is provided with an automatic slave friction cavity which corresponds to the automatic master friction cavity and has an upward opening, a left square body is fixedly connected onto the left end face of the rotary connecting block, an adjusting sliding cavity with a leftward opening is arranged in the left square body, an automatic bevel gear cavity is arranged on the right side of the adjusting sliding cavity, an automatic driving shaft which extends rightwards into the automatic slave friction cavity and extends leftwards into the automatic bevel gear cavity is connected into the right end wall of the automatic bevel gear cavity in a rotating fit mode, an automatic slave friction wheel which is fixedly connected with the automatic driving shaft is arranged in the automatic slave friction cavity, an automatic master bevel gear which is fixedly connected with the automatic driving shaft is arranged in the automatic bevel gear cavity, an adjusting clutch cavity is connected with the lower end wall of the adjusting clutch cavity in a rotating fit mode, and extends upwards into the adjusting clutch cavity and extends downwards, and the automatic bevel gear is meshed with the automatic slave bevel gear.

4. The wrench of claim 3, wherein the two-stage bending wrench has a jaw opening function, and the two-stage bending wrench comprises: the adjustable clutch device is characterized in that an automatic adjusting gear fixedly connected with an automatic driven shaft is arranged in the adjusting clutch cavity, a pressing cavity with an upward opening is arranged on the upper side of the adjusting clutch cavity, a pressing block is connected to the side wall of the pressing cavity in a sliding fit manner, an adjusting bevel gear cavity is arranged in the pressing block, an adjusting bevel gear cavity is connected to the lower end wall of the adjusting bevel gear cavity in a rotating fit manner and extends upwards into the adjusting bevel gear cavity and downwards into the adjusting clutch cavity, an adjusting intermediate gear fixedly connected with the adjusting intermediate shaft is arranged in the adjusting clutch cavity, an adjusting secondary bevel gear fixedly connected with the adjusting intermediate shaft is arranged in the adjusting bevel gear cavity, an adjusting friction cavity with an upward opening is arranged on the right side of the adjusting bevel gear cavity, an adjusting friction wheel fixedly connected with the adjusting drive shaft is arranged in the adjusting friction cavity in a rotating fit manner and extends rightwards into the adjusting friction cavity and extends leftwards into the adjusting bevel gear cavity, an adjusting primary bevel gear fixedly connected with the adjusting drive shaft is arranged in the adjusting bevel gear cavity, the adjusting primary bevel gear is meshed with the adjusting secondary bevel gear, an adjusting friction wheel fixedly connected with the pressing spring.

5. The wrench of claim 4, wherein the two-stage bending wrench has a jaw opening function, and the two-stage bending wrench comprises: adjust clutch chamber lower extreme inner wall normal running fit be connected with upwards extend to adjust clutch chamber and downwardly extending to adjust the regulation lead screw for the regulation in the slip intracavity, adjust clutch chamber be equipped with adjust lead screw fixed connection's regulation friction ring, fixedly connected with adjusts driven gear on the regulation friction ring, adjust driven gear with adjust the meshing of intermediate gear, sliding fit be connected with between the end wall around the regulation slip chamber with adjust the adjusting block that is connected with lead screw thread fit, adjusting block left end face fixedly connected with collet, left side square body left end face fixedly connected with is located the stationary dog of collet upside, stretch out the belt intracavity be equipped with conversion rotating shaft fixed connection stretch out the main belt wheel, the right side pressurization movable chamber right side is equipped with the decurrent main friction chamber that stretches out of opening, it is equipped with and stretches out the awl tooth chamber to stretch out awl tooth chamber upper end wall internal running fit be connected with upwards extend to stretch out the belt intracavity and downwardly extending to stretch out the transmission shaft, stretch out the belt intracavity be equipped with stretch out from the follow band pulley fixed connection downwards.

6. The wrench of claim 5, wherein the two-piece wrench is a two-piece wrench with a jaw quick-open function, further comprising: the extension auxiliary belt wheel is connected with an extension belt in a power fit mode between the extension auxiliary belt wheel and the extension main belt wheel, an extension main bevel gear fixedly connected with the downward transmission shaft is arranged in the extension bevel cavity, an extension driving shaft extending rightwards into the extension bevel cavity and extending leftwards into the extension main friction cavity is connected with the end wall of the extension bevel cavity in a rotation fit mode, an extension auxiliary bevel gear fixedly connected with the extension driving shaft is arranged in the extension bevel cavity, the extension auxiliary bevel gear is meshed with the extension main bevel gear, an extension main friction wheel fixedly connected with the extension driving shaft is arranged in the extension main friction cavity, an extension auxiliary friction cavity corresponding to the extension main friction cavity and provided with an upward opening is arranged in the intermediate body, an extension belt cavity extending downwards is arranged on the left side of the extension auxiliary friction cavity, an extension belt cavity right end wall of the extension belt cavity is connected with an extension driven shaft extending rightwards into the extension belt cavity and extending leftwards into the extension belt cavity in a rotation fit mode, and an extension auxiliary friction wheel fixedly connected with the extension driven shaft is arranged in the extension auxiliary friction cavity.

7. The wrench of claim 6, wherein the two-stage bending wrench has a jaw opening function, and the two-stage bending wrench comprises: an extension main belt wheel fixedly connected with the extension driven shaft is arranged in the extension belt cavity, an extension movable cavity with a right opening is arranged at the right side of the extension belt cavity, a screw rod for extension which extends rightwards into the extension movable cavity and leftwards into the extension belt cavity is connected to the left end wall of the extension movable cavity in a rotating fit manner, extend the belt intracavity be equipped with extend with lead screw fixed connection's extension belt chamber, extend the belt chamber with extend between the main pulley power fit be connected with extend with the belt, extend activity chamber lateral wall sliding fit be connected with extend with the extension piece that lead screw thread fit is connected.