CN202241010U

CN202241010U - Hand tool structure

Info

Publication number: CN202241010U
Application number: CN2011202359400U
Authority: CN
Inventors: 王政晖
Original assignee: EZconn Corp
Current assignee: EZconn Corp
Priority date: 2011-07-06
Filing date: 2011-07-06
Publication date: 2012-05-30
Anticipated expiration: 2021-07-06

Abstract

The utility model provides a hand tool structure, which includes a rod body and an embedding seat capable of being pivoted on the rod body, wherein the embedding seat is provided with a sleeve; a hollow sleeve hole is axially formed inside the sleeve; a cut groove is cut on the sleeve and corresponds to the periphery of the sleeve hole; an accommodating hole is axially formed on the other side of the cut groove; a rotating shaft unit is accommodated in the accommodating hole; the rotating shaft unit is provided with a transmission rod; a meshing part capable of being flexibly embedded and clamped with an acting part at the bottom of the accommodating hole is arranged on one side of the transmission rod; and an elastic element is sleeved on the transmission rod. When a user pulls the rod body to drive the rotating shaft unit, the lock connection operation can be performed through the sleeve as the sleeve hole can be sleeved on a screw cap of a coaxial cable, and when the sleeve reaches a predetermined torque force value, the meshing part can slide along the acting part and be propped against the acting part, so as to be in an idle running state, and then the meshing part is axially propped against the elastic element and is elastically deformed, as a result, the structure at the corner of the screw cap is protected from being impaired or damaged, and further the service life of the whole screw cap is effectively prolonged.

Description

Hand tool

Technical field

The utility model provides a kind of hand tool; Especially the rotating shaft unit that refers to body of rod drive nested base reaches when being scheduled to torque value sleeve; Can slide along the Actuator Division through engaging piece and support displacement and present idling conditions; And axially push against in flexible member and be a strain, to avoid being connected to the damage of the nut edge that caused when carrying out interlocking on the nut of coaxial cable because of jacket casing.

Background technology

Sub-district Master Antenna TV (CATV) is commonly referred to as the prototype of cable television system now; And see through fiber optic network, optical node conversion etc. and RF signal is connected through coaxial cable, signal distributor be used as transmission medium; Reallocation provides multiple service to community user, like radio and television, DTV, program request amusement and high speed internet etc.

Moreover, when coaxial cable is connected with the signal distributor, utilize the signal connector at coaxial cable end place to come the butt joint of interlocking on the signal distributor to use through nut; And utilize the hand-held tool of spanner as nut assembling or dismounting, and be beneficial to carry out the operation of interlocking, see also shown in Figure 9; Be the stereo appearance figure of existing spanner structure, it is to be articulated with the sleeve B that sheet metal system capable of using becomes in connecting rod A two side places, and two sleeve B inside all have a sleeve joint hole B1; And cut open in sleeve B perimeter and to be provided with profile groove B11; Come to be folded at relatively on the connecting rod A and can sleeve B be seen through profile groove B11, in order to constitute the torque spanner of folding, because connecting rod A is for to articulate with sleeve B each other; Sleeve B can different angles be socketed on the nut of signal connector carries out the interlocking operation; Though this kind can provide the user under the construction environment of insufficient space, to manipulate,, often cause nut interlocking application of force in the butt joint of signal distributor excessive and unconscious because of the user pulls when connecting rod A drives sleeve B rotation; So that the nut edge is easy to generate wearing and tearing or structural damage and destruction; If when user's desire is dismantled the signal connector of coaxial cable through nut, just can cause the nut skidding, cause operational inconvenience of use and puzzlement and be unfavorable for field-strip; Or even shorten the nut whole service life and can't reuse, be and remain to be engaged in this journey dealer and desire most ardently the direction that research improves and belong to.

The utility model content

The creator is because problem and the disappearance that existing spanner structure uses; Be to collect related data via assessing in many ways and considering; And utilize the research and development experience for many years of engaging in the industry constantly to study and revise; Beginning is designed the novel birth of this kind hand tool, and the purpose of the utility model provides a kind of hand tool.

The utility model a kind of hand tool is provided, include the body of rod and nested base, wherein: this body of rod be have one or more can the movable each other connecting rod that articulates, and be provided with axial region in connecting rod one side place; This nested base is to be articulated on the axial region of the body of rod; And include sleeve, rotating shaft unit and flexible member; And sleeve inner axially is formed with the hollow sleeve joint hole on the nut that can be socketed on preset coaxial cable; And cut open to be provided with in the sleeve joint hole perimeter and can supply preset coaxial cable laterally to insert the profile groove in the sleeve joint hole; And the in addition side place of the relative profile groove of sleeve axially is formed with in the ostiolate containing hole and contains rotating shaft unit, and is provided with the Actuator Division in the containing hole bottom, again the drive link one side place of rotating shaft unit institute tool be provided with can with the engaging piece of the movable inlay card in Actuator Division; And be to be positioned between the engaging piece of opening part and rotating shaft unit of sleeve in flexible member sheathed on the drive link; When body of rod clockwise direction drove rotating shaft unit and makes sleeve reach predetermined torque value, can do along the Actuator Division to slide through engaging piece supports displacement and presents idling conditions, and axially pushed against in flexible member and be a strain.

The beneficial effect of the utility model:

The main purpose of the utility model is to be that nested base is for being articulated on the body of rod; Wherein the sleeve inner of nested base institute tool is for being formed with the hollow sleeve joint hole; And, the relative sleeve joint hole perimeter of sleeve contains rotating shaft unit in cuing open the profile groove containing hole of establishing that the side place axially forms in addition; And the drive link one side place of rotating shaft unit institute tool be provided with can with the engaging piece of the movable inlay card in Actuator Division of containing hole bottom, and be arranged with flexible member on the drive link, when the body of rod drives rotating shaft unit toward the clockwise direction; Sleeve capable of using is for carrying out the interlocking operation on the nut that is socketed on coaxial cable with sleeve joint hole; And when making sleeve reach predetermined torque value, can do along the Actuator Division to slide through engaging piece supports displacement and presents idling conditions, and axially pushes against in flexible member and be a strain; To avoid being caused the nut edge to produce wearing and tearing or structural damage and destruction, be able to effectively prolong whole service life because of the application of force is excessive.

The secondary objective of the utility model is to be if the user is when desiring loosen nut; Only need grip the body of rod towards counterclockwise pulling; And be a plurality of limited block vertical planes formation blocking positioning states with a plurality of ring projection vertical planes of engaging piece peripheral region and sleeve Actuator Division institute tool through rotating shaft unit; And flexible member elasticity supports to arrive on engaging piece; Sleeve and rotating shaft unit are rotated synchronously, just can through sleeve be with the relative supporting surface ejection in sleeve joint hole internal face place on the hex surface of nut edge, even the nut that has worn and torn also can effectively lock and unclamp.

Another purpose of the utility model is to be the sleeve of nested base and the structure that rotating shaft unit can be an assembly and disassembly; And can be on demand or the difference of design replace the flexible member of various types, coefficient of elasticity; And have suitable elastic resistance, can cooperate the nut of different size size to do predetermined torque value adjustment.

Description of drawings

Fig. 1 is the stereo appearance figure of the utility model.

Fig. 2 is the three-dimensional exploded view of the utility model.

Fig. 3 is the three-dimensional exploded view at another visual angle of the utility model.

Fig. 4 is the sectional perspective profile of the utility model.

Fig. 5 uses preceding stereo appearance figure for the utility model preferred embodiment.

Side cutaway view when Fig. 6 uses for the utility model preferred embodiment.

Fig. 7 is the side cutaway view of the utility model preferred embodiment after using.

Fig. 8 is the stereo appearance figure of another preferred embodiment of the utility model.

Fig. 9 is the stereo appearance figure of existing spanner structure.

[main element symbol description]

1 body of rod

11 connecting rods, 1212 screws

111 axial regions, 1213 screws

1111 axis holes, 13 holding rods

1112 sections, 131 axial regions

12 axle beds, 1311 axis holes

121 axial troughs, 1312 sections

1211 composition surfaces

2 nested bases

21 sleeves, 2221 ring projections

211 sleeve joint holes, 2222 guiding inclines

2111 supporting surfaces, 2223 vertical planes

212 profile grooves, 23 flexible members

213 containing holes, 24 convergence bodies

2131 openings, 241 caulking grooves

214 Actuator Divisions, 2411 lockholes

2141 limited blocks, 2412 double-screw bolts

2142 passing faces, 242 axial troughs

2143 vertical planes, 2421 composition surfaces

2422 perforation of 22 rotating shaft unit

221 drive links, 2423 jack-posts

2211 open-works, 25 axle sleeves

222 engaging pieces

3 coaxial cables

31 nuts, 311 hex surfaces

4 butt joints

41 junction surfaces

5 electronic apparatus

The A connecting rod

The B sleeve

B1 sleeve joint hole B11 profile groove

The specific embodiment

For reaching above-mentioned purpose and effect, technological means that the utility model adopted and structure thereof are drawn now and are explained in detail that with regard to the preferred embodiment of the utility model its structure is following with function, understand fully in order to do profit.

See also Fig. 1,2,3, shown in 4; Be respectively stereo appearance figure, the three-dimensional exploded view of the utility model, the three-dimensional exploded view and the sectional perspective profile at another visual angle; Find out by knowing among the figure; The utility model is for including the body of rod 1 and nested base 2, thus with regard to the main member of this case and characteristic details as after, wherein: this body of rod 1 is for having one or more connecting rods 11 of movable pivot joint each other; And be provided with the axial region 111 of the axis hole 1111 of tool different directions in connecting rod 11 at least one side places; And be positioned on axis hole 1,111 two outer surfaces and all be formed with relative section 1112, and in wherein being pivoted with an axle bed 12 on the axial region 111, and the side place in addition of axle bed 12 relative axial regions 111 then is pivoted with the holding rod 13 that can form different directions with connecting rod 11.

Moreover; Cut open and be provided with axial trough 121 at above-mentioned axle bed 12 2 side places; And the screw 1212 that two axial troughs, 121 internal face places all are provided with relative composition surface 1211 and can supply screw 1213 laterally to lock; And in an axial trough 121 wherein, be positioned at the location, axis hole 1111 places of axial region 111 for be articulated in connecting rod 11 with screw 1213, and holding rod 13 1 side places are provided with the axial region 131 of tool axis hole 1311, and are positioned at and are formed with section 1312 on axis hole 1,311 2 outer surfaces; And in another axial trough 121 of axle bed 12 for be articulated in the axis hole 1311 places location that holding rod 13 is positioned at axial region 131 with screw 1213, can see through axle bed 12 and be linked to articulate each other on connecting rod 11 and the holding rod 13 and be combined into one.

This nested base 2 is for to be articulated on the axial region 111 of the body of rod 1; And include sleeve 21, rotating shaft unit 22 and flexible member 23; Its middle sleeve 21 inner shafts are to being formed with the hollow sleeve joint hole 211 of locking or unclamping on the nut 31 (as shown in Figure 5) that can be socketed on coaxial cable 3; And be provided with at least two relative supporting surfaces 2111 in sleeve joint hole 211 internal face places; And sleeve 21 perimeter are cutd open and are provided with the profile groove 212 that is communicated in the sleeve joint hole 211; The side place in addition of sleeve 21 relative profile grooves 212 then axially is formed with the containing hole 213 of tool opening 2131, and is provided with the Actuator Division 214 of a plurality of limited blocks 2141 of tool in containing hole 213 bottoms, and each limited block 2141 dual side-edge all is formed with passing face 2142 and vertical plane 2143.

And rotating shaft unit 22 is for to be contained in the containing hole 213 of sleeve 21; And has a drive link 221; And drive link 221 1 side places be provided with can with the engaging piece 222 of Actuator Division 214 movable inlay cards, these engaging piece 222 end face peripheral regions are provided with a plurality of ring projections 2221, and respectively encircle projection 2221 dual side-edges and all be formed with guiding incline 2222 and vertical plane 2223; On drive link 221, be arranged with a flexible member 23 in addition, the side place in addition of drive link 221 relative engaging pieces 222 is combined with convergence body 24 again.

In addition; The drive link 221 of rotating shaft unit 22 is provided with the open-work 221 1 of lateral direction penetrating; And convergence body 24 1 side places are axially arranged with the caulking groove 241 that can supply location, drive link 221 ends; And the lockhole 2411 of institute's lateral direction penetrating in the caulking groove 241 is located for open-work 2211 places that are articulated in drive link 221 ends with double-screw bolt 2412; Cut open and be provided with axial trough 242 at the side place in addition of convergence body 24 relative caulking grooves 241 again, and the perforation 2422 that is provided with relative composition surface 2421 and can supplies jack-post 2423 laterally to penetrate in axial trough 242 internal face places, and the 2422 interior location, axis hole 1111 places that are positioned at axial region 111 for the connecting rod 11 that is articulated in the body of rod 1 with jack-post 2423 of boring a hole.

Yet; Above-mentioned nested base 2 is positioned at opening 2131 places of sleeve 21 for being provided with an axle sleeve 25; And make flexible member sheathed on the drive link 221 of rotating shaft unit 22 23 2 side places respectively elasticity support to arrive on engaging piece 222 and axle sleeve 25 and be merely a kind of preferable enforcement state; But when practical application; Also can omit axle sleeve 25 structural designs; And flexible member 23 1 side place elasticity are supported to arrive on the engaging piece 222 of drive link 221, and the side place elasticity in addition of flexible member 23 supports to arrive in rotating shaft unit 22 and is positioned on the convergence body 24 at sleeve 21 openings 2131 places, it only need provide and be an elastic deformation between the engaging piece 222 of opening 2131 places that flexible member 23 is positioned sleeve 21 and rotating shaft unit 22 and get final product.

Please arrange in pairs or groups and consult Fig. 5, Fig. 6, shown in Figure 7; Be respectively the side cutaway view after preceding stereo appearance figure, the side cutaway view when using and use are used in the utility model preferred embodiment; Find out by knowing among the figure; The hand tool of the utility model is on the electronic apparatus 5 in signal distributor, adapter or other electrical equipment that can be applicable to cable television system; Can with the nut on the coaxial cable 3 31 serve as reasons manual mode in advance interlocking on the junction surface 41 of butt joint 4; The center conductor (not shown) of coaxial cable 3 is plugged in form in the jack at junction surface 41 and electrically connects; Utilize the sleeve 21 of nested base 2 to cooperate the nut 31 of coaxial cable 3 again, make the profile groove 212 of its sleeve 21 perimeter can supply coaxial cable 3 laterally to insert and be positioned at sleeve joint hole 211, thus can be with sleeve 21 for axially to be socketed on nut 31 outsides with sleeve joint hole 211; And make relative supporting surface 2111 ejections in sleeve joint hole 211 internal face places on the hex surface 311 of nut 31 edges, be a location; When the user is gripped on the holding rod 13 of the body of rod 1 and pulls toward the clockwise direction, can see through axle bed 12 and the different direction of connecting rod 11 formation and drive in the rotating shaft unit 22 of nested base 2 and sleeve 21 nut 31 is locked commentaries on classics fast, and all can operate and can not receive the restriction in member direction or space in coaxial cable 3 arbitrary directions; And then can the nut 31 of coaxial cable 3 and junction surface 41 interlockings of butt joint 4 be combined into one, and reach the effect that operation is simple and easy, the assembling location is certain.

And the sleeve 21 of nested base 2 is in the process of interlocking; Rotating shaft unit 22 is butted up against on the Actuator Division 214 that sleeve 21 is positioned at containing hole 213 bottoms for the engaging piece 222 with drive link 221 1 side places; And support to arrive on engaging piece 222 through flexible member 23 elasticity; Make a plurality of ring projections 2221 of its engaging piece 222 end face peripheral regions and a plurality of limited blocks 2141 formation activity inlay card states of Actuator Division 214; The connecting rod 11 of the body of rod 1 just capable of using sees through convergence body 24 and drives in rotating shaft unit 22, make nested base 2 sleeve 21 can with rotation, the nut 31 that is beneficial to coaxial cable 3 carries out the interlocking operation with the junction surface 41 of butt joint 4.

When the user pulls the rotating shaft unit 22 that drives nested base 2 in the body of rod 1 and makes sleeve 21 reach predetermined torque value; Can through the guiding incline 2222 on a plurality of ring projections 2221 of engaging piece 222 peripheral regions along the Actuator Division a plurality of limited blocks 2141 passing faces 2142 of 214 do toward the clockwise direction to slide and support displacement; And engaging piece 222 is axially pushed against in flexible member 23 be elastic compression distortion; If the user continues to apply torsion; The ring projection 2221 of its engaging piece 222 just can be crossed the limited block 2141 of Actuator Division 214 and present idling conditions; The structural design that cooperates flexible member 23 with this rotating shaft unit 22; Make sleeve 21 drive nuts 31 interlockings and can keep predetermined torque value, caused sleeve 21 to drive nut 31 hex surfaces 311 structural damage and destructions because of the application of force is excessive in coaxial cable 3 with the person of avoiding the use of in the 41 last times of junction surface of butt joint 4, and the sleeve 21 of this nested base 2 and rotating shaft unit 22 structure that can be an assembly and disassembly; And can be on demand or the difference of design replace the flexible member 23 of various types, coefficient of elasticity; And have suitable elastic resistance, and can cooperate the nut 31 of different size size to do predetermined torque value adjustment, be able to effectively prolong whole service life.

By last; When if the user desires to unclamp the nut 31 of coaxial cable 3; The holding rod 13 that only need be gripped on the body of rod 1 is towards counterclockwise pulling; And engaging piece 222 activities through rotating shaft unit 22 1 side places are embedded in sleeve 21 and are positioned on the Actuator Division 214 of containing hole 213 bottoms; A plurality of limited blocks 2141 vertical planes 2143 that make vertical plane 2223 activities on a plurality of ring projections 2221 of engaging piece 222 peripheral regions be embedded in Actuator Division 214 form the blocking positioning states, and flexible member 23 elasticity support to arrive on engaging piece 222, and make rotating shaft unit 22 can drive sleeve 21 synchronously towards counterclockwise rotating; Again through sleeve 21 be with relative supporting surface 2111 ejections in sleeve joint hole 211 internal face places on the hex surface 311 of nut 31 edges; The nut that has worn and torn 31 reducing the damage and the destruction of nut 31 edges, and make nut 31 lock more easily or unclamp, even also can effectively lock and unclamp.

It is shown in Figure 8 please to consult Fig. 2 simultaneously; Be respectively the three-dimensional exploded view of the utility model and the stereo appearance figure of another preferred embodiment; Find out by knowing among the figure; Wherein the side place in addition of this body of rod 1 relative nested base 2 also can further be articulated with another nested base 2; And two nested bases 2 are positioned at sleeve 21 inner shafts can have difformity (like hexagon, quincunx or polygon etc.) or size respectively to the hollow sleeve joint hole 211 that forms; It only need provide the user to pull when the body of rod 1 drives the rotating shaft unit 22 of a nested base 2 wherein, and sleeve 21 capable of using carries out the interlocking operation for come engage sleeves to be connected on the nut 31 of coaxial cable 3 with sleeve joint hole 211, and junction surface 41 interlockings of nut 31 and butt joint 4 is combined into one get final product.

See also Fig. 2, shown in Figure 4 again; The utility model is for being articulated on the body of rod 1 to nested base 2; And include a sleeve 21, rotating shaft unit 22 and flexible member 23; And contain rotating shaft unit 22 in other the side containing hole 213 of sleeve 21 relative sleeve joint hole 211 perimeter profile grooves 212; And the drive link 221 1 side places of 22 tools of rotating shaft unit be provided with can with the engaging piece 222 of the Actuator Division 214 movable inlay cards of containing hole 213 bottoms, and on drive link 221, be arranged with flexible member 23, when the body of rod 1 drives rotating shaft unit 22 and makes sleeve 21 reach predetermined torque value for the nut 31 with the coaxial cable 3 of 211 sockets of sleeve joint hole; Can 214 do slide and to support displacement and present idling conditions along the Actuator Division through engaging piece 222; And pushing and pressing flexible member 23 is a strain, weares and teares to avoid being caused nut 31 edges to produce because of the application of force is excessive, is able to effectively prolong whole service life.

Above-mentioned detailed description is for explaining to a kind of preferable possible embodiments of the utility model; But this embodiment is not in order to limit the claim of the utility model; All other do not break away from the equalization of being accomplished under the skill spirit that the utility model discloses to be changed and modifies change, all should be contained in the claim that the utility model contains.

In sum, the hand tool of the utility model for reaching its effect and purpose really, so the utility model really is the excellent utility model of a practicality, meets the application requirement of utility model patent in fact, files an application in accordance with the law.

Claims

1. a hand tool is characterized in that, includes the body of rod and nested base, wherein:

This body of rod is to have one or more connecting rods of movable pivot joint each other, and is provided with axial region in connecting rod one side place;

This nested base is to be articulated on the axial region of the body of rod; And include sleeve, rotating shaft unit and flexible member; And sleeve inner axially is formed with the hollow sleeve joint hole on the nut that can be socketed on preset coaxial cable; And cut open to be provided with in the sleeve joint hole perimeter and can supply preset coaxial cable laterally to insert the profile groove in the sleeve joint hole; And the in addition side place of the relative profile groove of sleeve axially is formed with in the ostiolate containing hole and contains rotating shaft unit, and is provided with the Actuator Division in the containing hole bottom, again the drive link one side place of rotating shaft unit institute tool be provided with can with the engaging piece of the movable inlay card in Actuator Division; And be to be positioned between the engaging piece of opening part and rotating shaft unit of sleeve in flexible member sheathed on the drive link; When body of rod clockwise direction drove rotating shaft unit and makes sleeve reach predetermined torque value, can do along the Actuator Division to slide through engaging piece supports displacement and presents idling conditions, and axially pushed against in flexible member and be a strain.

2. hand tool as claimed in claim 1; It is characterized in that; The connecting rod two side places of this body of rod are provided with the axial region of the axis hole of tool different directions, and in wherein being pivoted with an axle bed on the axial region, and the side place in addition of the relative axial region of axle bed is pivoted with the holding rod that can form different directions with connecting rod.

3. hand tool as claimed in claim 2; It is characterized in that; This body of rod is positioned on axis hole two outer surfaces on the axial region and is formed with relative section, and to cut open the axial trough internal face place that establishes be the screw that is provided with relative composition surface and can supplies screw laterally to lock at axle bed two side places, and in an axial trough wherein for be articulated in the location, axis hole place of connecting rod with screw; And holding rod one side place is provided with the axial region of tool axis hole, and in another axial trough of axle bed, locatees for the axis hole place that is articulated in holding rod with screw.

4. hand tool as claimed in claim 1; It is characterized in that; The sleeve joint hole internal face place that this nested base is positioned at sleeve is provided with at least two relative supporting surfaces, and makes the supporting surface of sleeve joint hole can ejection on the hex surface of the nut edge of preset coaxial cable, lock or unclamp.

5. hand tool as claimed in claim 1; It is characterized in that; The containing hole bottom that this nested base is positioned at sleeve is provided with the Actuator Division of a plurality of limited blocks of tool; Be provided with a plurality of ring projections and rotating shaft unit is positioned at the engaging piece end face peripheral region at drive link one side place, and make a plurality of ring projections of engaging piece and a plurality of limited blocks of Actuator Division form movable inlay card or idling conditions.

6. hand tool as claimed in claim 5; It is characterized in that; This sleeve is positioned at the limited block dual side-edge of Actuator Division for being formed with passing face and vertical plane; And rotating shaft unit is positioned at the ring projection dual side-edge of engaging piece and is formed with guiding incline and vertical plane, and the ring projection guiding incline that makes engaging piece is passed along the limited block of Actuator Division and faced clockwise direction and do to slide and support displacement and present idling conditions.

7. hand tool as claimed in claim 6; It is characterized in that; The ring projection vertical plane that this rotating shaft unit is positioned at engaging piece is embedded in the limited block vertical plane formation blocking positioning states that sleeve is positioned at the Actuator Division for movable, and makes rotating shaft unit can drive sleeve synchronously towards counterclockwise rotating.

8. hand tool as claimed in claim 1 is characterized in that, the containing hole opening part that this nested base is positioned at sleeve is for being provided with an axle sleeve, and make flexible member two side places respectively elasticity support to arrive on the engaging piece and axle sleeve of rotating shaft unit.

9. hand tool as claimed in claim 1; It is characterized in that; This nested base is positioned at the in addition side place of the relative engaging piece of drive link of rotating shaft unit for being combined with convergence body; And convergence body is to be articulated on the axial region of the body of rod, and flexible member one side place elasticity is supported to arrive on the engaging piece of drive link, and the side place elasticity in addition of flexible member supports to arrive on convergence body.

10. hand tool as claimed in claim 9; It is characterized in that; The drive link of the rotating shaft unit of this nested base is provided with the open-work of lateral direction penetrating; And convergence body one side place is axially arranged with caulking groove, and the lockhole that makes institute's lateral direction penetrating in the caulking groove is for being articulated in the through-hole position location of drive link with double-screw bolt, and cut open and is provided with axial trough at the side place in addition of the relative caulking groove of convergence body; And the perforation that is provided with relative composition surface and can supplies jack-post laterally to penetrate in axial trough internal face place, and perforation is to be articulated in the location, axis hole place that the body of rod is positioned at axial region institute tool with jack-post.