CN207596346U - A kind of wind-proof pull rod of crane - Google Patents

Abstract

A kind of wind-proof pull rod of crane.Including idler arm (1) and fixed seat (3), idler arm (1) upper end is equipped with the first connector (1a) being connect with the component on crane；Casing (1b) is set on the hypomere of the idler arm (1), casing (1b) is supported by the boss (1c) of idler arm (1) lower end, under external force, freely declining after casing (1b) can rise and rise along idler arm hypomere；Equipped with the second connector (2), second connector (2) epimere is screw pair connection structure with the casing (1b) on the idler arm (1), and the hypomere of second connector (2) connect fixed structure with third connector (4) epimere in the fixed seat (3) for screw pair；Second connector (2) is equipped with and can be manually rotated component (2c).There is stable working state, reliable.

Description

A kind of wind-proof pull rod of crane

Technical field

It is specifically a kind of to prevent the wind-proof pull rod that crane topples the utility model is related to the wind-proof pull rod of crane, especially It is suitable for portal cranes, are equally applicable to the crane in other places of similar portal crane operating mode.

Background technology

Harbour goliath must be provided with windproof, overturn-preventing safety device, current windproof, overturn-preventing safety device Mainly there are rail clamping device, anti-creep device, wind-proof pull rod etc..Wind-proof pull rod is one of common safety device, i.e., in crane quadrangle Door foot on wind-proof pull rod is vertically set, the component (such as otic placode) on the upper end and crane of the wind-proof pull rod is even It connects, the lower end of wind-proof pull rod is connect and fixed with being arranged on by walking track the fixed seat in precalculated position on ground, makes inoperative Crane under state is in the limiting state of stable safety, to prevent crane from toppling.

Wind-proof pull rod includes vertically arranged rod piece, and during crane operating status, the lower end of the rod piece is kept from the ground Certain distance, wind-proof pull rod are suspended state and with crane movables；Need to implement under crane off working state it is windproof with it is anti- When toppling, crane is run to precalculated position first, by operation, makes the connecting elements of rod piece lower end along the rod piece or with this Rod piece moves down, and the connector of rod piece lower end connect and fixes with the connector in fixed seat, and wind-proof pull rod is made to be in work Make state.

" a kind of port machine wind-proof pull rod " of notification number CN203021200U, including fixed seat and vertical bar, vertical bar It is equipped with manual pulley, rod piece both ends are equipped with the opposite thread segment of the hand of spiral, in the thread segment and upper connector of rod piece upper end Swivel nut connects, and upper connector upper end is additionally provided with the connector being connect with the component on crane；The thread segment of rod piece lower end is under Swivel nut connection on connector, the lower connector lower part are U-shaped component, and fixed seat is equipped with vertical connecting plate (anchor block)； Rotary manual wheel drives vertical bar rotation, and due to the oppositely oriented spiral side effect in both ends, the lower connector is along under rod piece Drop until its U-shaped component is made to be combined with the vertical plate (anchor block) in fixed seat, and makes the pin hole and fixed seat on U-shaped component Then the pin hole of upper vertical connecting plate realizes that pull rod lower end and the connection of ground fixed seat are consolidated to just coincideing by being inserted into axis pin Fixed, the connection structure, that is, so-called U-shaped component and detachable pin shaft connection structure, U-shaped component are connect with detachable axis pin Deficiency is existing for structure, since wind-proof pull rod rod piece is in suspended state, U-shaped component decline after on fixed connecting base Vertical plate combines, pin hole does not generate rotation to just and during being inserted into axis pin needing to block u shaped connector, it is therefore desirable to which more people match Closing operation, and vertical plate is low from the ground, be not easy to pin hole on u shaped connector in vertical plate pin hole to just being inserted with axis pin Enter, it is cumbersome, it influences pull rod lower end and fixed working efficiency is connect with fixed seat；In addition, U-shaped component and detachable axis pin Larger fit clearance is certainly existed between the axis pin and pin hole of connection structure so that the contact surface of axis pin and pin hole is smaller, connects Stress increase is touched, axis pin can shake because of crane in the windproof course of work or vibration generates play and impact, component are easy to grind Damage influences the stability of wind-proof pull rod working condition.

The bridge crane windbreak anchoring system of notification number CN107032233A, is driven using motor driver, is passed by gear The cooperation of screw thread and swivel nut on dynamic secondary and rod piece, realizes the oscilaltion of wind-proof pull rod rod piece, and rod piece includes upper lever under Rod piece, lower rod piece lower end are equipped with horizontal lock pin (i.e. the connector of rod piece lower end), and the connector in fixed seat is equipped with level The fixed plate of the big notch of shape and small-rabbet, after the lock pin declines with lower rod piece, the lock pin initially enters fixed plate upper big mouth Then the notch of diameter is moved horizontally in small-bore notch, and make lock pin two sides and small-bore slot by the rising of lower rod piece Mouth both sides wooden partition is contacted and is compressed, and realizes that the connection of lower rod piece lower end and fixed seat is fixed, i.e., so-called lock pin, notch type connection Structure, the deficiency of the connection structure are that lock pin two sides and the composition surface area of small-bore notch both sides wooden partition are small, in windproof work During work, prevent the lock pin of lower rod piece lower end from sliding onto big mouth from the small-bore notch of fixed plate except other setting component is needed Outside the notch of diameter, since the composition surface of lock pin and notch generates beat when crane shakes or vibrates and there is local gap, Original smaller composition surface area is caused to reduce again, the contact stress on composition surface then increases, by unexpected and frequent impact Under load condition, the damage of component is be easy to cause, influences the reliability under wind-proof pull rod working condition.

Utility model content

The utility model provides a kind of wind-proof pull rod of crane, the stable working state of wind-proof pull rod, reliable, windproof drawing The connection fixed operation of bar and fixed seat is easy.

Technical solutions of the utility model are referring to Fig. 1：

The utility model includes idler arm 1 and fixed seat 3, and 1 upper end of idler arm is equipped with what is connect with the component on crane First connector 1a；

Casing 1b is set on the hypomere of the idler arm 1, and casing 1b is supported by the boss 1c of 1 lower end of idler arm, in external force Under effect, casing 1b can freely declining along the rising of idler arm hypomere and after rising；

Equipped with the second connector 2,2 epimere of the second connector connects with the casing 1b on the idler arm 1 for screw pair Binding structure, the hypomere of second connector 2 connect fixation with 4 epimere of third connector in the fixed seat 3 for screw pair Structure；

Second connector 2 is equipped with and can be manually rotated component 2c, rotates this and can be manually rotated component, due to the second connector Epimere is screw pair connection structure with the casing 1b on idler arm, and the effect of screw pair makes the second connector 2 can be along described sleeve pipe 1b rises or falls, the decline of second connector 2, the thread segment of hypomere can on the third connector 4 in fixed seat The thread segment of section, which is realized, to be combined, until being attached to set connection stationary state.

It is further：

Described sleeve pipe 1b lower ends are with setting elastic component 1d, elastic component 1d limitings on the composition surface of 1 lower end boss 1c of idler arm In on idler arm 1, there are one pressed for elastic component 1d between the composition surface of 1 lower end boss 1c of casing 1b lower faces and idler arm Compression deformation and avoid destroyed gap 1e, elastic component 1d to the idler arm of wind-proof pull rod under tension from cushioning effect, The component on composition surface can be avoided to cause hard breakdown, be conducive to the stabilization of working condition.

The epimere of second connector 2 is the first thread segment 2a, and hypomere is the second thread segment 2b, the in the fixed seat Three connectors, 4 epimere is thread segment 4a, the screw thread of the first thread segment 2a of 2 epimere of the second connector and casing 1b on idler arm 1 Section forms the screw pair connection structure, the second thread segment 2b and the third connector 4 in fixed seat of 2 hypomere of the second connector The thread segment 4a of epimere forms the screw pair connection fixed structure.

Second thread segment 2b of 2 hypomere of the second connector can be internal thread pipe sleeve thread segment or vertical screw rod, institute The thread segment 4a for stating 4 epimere of third connector in fixed seat is the pipe sleeve thread segment of corresponding vertical screw rod or internal thread, institute The outer end for stating pipe sleeve thread segment sets tubaeform ways, and the outer end of the vertical screw rod is equipped with and the tubaeform guiding structure The corresponding cone-shaped structure of part, the tubaeform ways and cone-shaped structure interact, to the pipe sleeve thread segment with Vertical screw flight, which enters, has combined initial guiding role.

It when needing to implement overturn-preventing under crane off working state, is rotated by operating manual rotating member, second connects Fitting 2 declines along casing 1b, and after declining certain distance, the second thread segment 2b of 2 hypomere of the second connector is and fixation The thread segment 4a of 4 epimere of third connector enters combination on seat 3, and the second connector continues to decline, until making the second connector 2 The thread segment 4a of second thread segment 2b of hypomere and 4 epimere of third connector is attached to set state, that is, realizes anti- 1 lower end of idler arm of wind pull rod and the stabilization of fixed seat 3 are reliably connected, and make wind-proof pull rod in running order, to prevent lifting Machine topples.

The utility model has the characteristics that and technique effect：

1st, since the epimere of second connector of the utility model and the casing 1b on idler arm hypomere are connect for screw pair Structure, 4 epimere of third connector on the hypomere and fixed seat of the second connector connects fixed structure for screw pair, in windproof drawing Under bar working condition, the screw pair of thread segment has the thread binding face of a few or even tens of circles, the stability of screw pair cooperation Can, wind-proof pull rod is made to be in stable working condition.

2nd, due to thread segment have a few even tens of circles thread binding face, then forced area is big, by suddenly with The contact stress born under frequent impact load is small, and component is hardly damaged, and wind-proof pull rod is made to be in reliable working condition.

3rd, described sleeve pipe lower end on the faying face of idler arm lower end boss with setting elastic component, lower end face and idler arm There are one the gap for avoiding being broken ring by compressive deformation for elastic component between lower end boss faying face, elastic component is to windproof drawing The idler arm of bar under tension from cushioning effect, can avoid causing hard breakdown with reference to surface member, be conducive to working condition Stabilization.

4th, since the casing 1b for being located at 1 hypomere of idler arm can rise under external force along the idler arm, when the second connection Second thread segment 2b of 2 hypomere of part occurs not with 4 epimere thread segment 4a of third connector in fixed seat when initially being combined It coincide, when the two is that generation generates a upward reaction force with respect to collision to the second connector, casing 1b is i.e. along pull rod Part accordingly rises and generates yielding, when continuous rotation can be manually rotated component 2c and drive the rotation of the second connector 2, second spiral shell Line section 2b and 4 epimere thread segment 4a of third connector, which can be smoothly entered, to be coincide and combines, moreover, it is located at outside pipe sleeve thread segment The interaction of the tubaeform ways at end and the cone-shaped structure of vertical screw rod outer end, can be to the second thread segment 2b's Screw thread enters with 4 epimere thread segment of third connector has combined initial guiding role, therefore, the second connection in the utility model 2 hypomere of part and the connection fixed operation of third connector 4 in fixed seat are easy, can improve idler arm lower end and be connect with fixed seat admittedly Fixed working efficiency, one man operation can be completed, and can save manpower.

Other technique effects that the utility model has will be further described with reference to specific embodiment.

Description of the drawings

Fig. 1 is the structure diagram of the utility model embodiment 1, and illustrates the second screw thread of 2 hypomere of the second connector Section 2b is not entered with 4 epimere thread segment 4a of third connector in fixed seat with reference to fixed state；

Fig. 2 is the screw thread of the second thread segment 2b of the second connector hypomere and 4 epimere of third connector in structure shown in Fig. 1 State when section 4a is completely combined with fixing；

Fig. 3 is the A-A views of Fig. 1；

Fig. 4-be Fig. 1 B-B enlarged structure views；

Fig. 5 is the structure diagram of embodiment 2.

The utility model is further illustrated with specific embodiment below in conjunction with the accompanying drawings.

Specific embodiment

Embodiment 1, referring to Fig. 1 to Fig. 4.

The utility model includes idler arm 1 and fixed seat 3, and 1 upper end of idler arm is equipped with what is connect with the component on crane First connector 1a, it is illustrated that it with the first connector 1a lower ends is that thread fitting is connect, and is consolidated with pin that structure, which is 1 upper end of idler arm, It is fixed；There are many implement structure by the first connector 1a.

Casing 1b is set on the hypomere of the idler arm 1, and casing 1b is supported by the boss 1c of 1 lower end of idler arm, in external force Under effect, casing 1b can freely declining along the rising of 1 hypomere of idler arm and after rising；Under described sleeve pipe 1b lower ends and idler arm 1 Hold sets elastic component 1d, elastic component 1d to be positioned on the idler arm 1 on the faying face of boss 1c, and casing 1b lower faces are with drawing Between the faying face of 1 lower end boss 1c of rod piece there are one for elastic component 1d avoided during compressive deformation it is destroyed between Gap 1e, i.e., when elastic component 1d by compressive deformation to before closing on breakage, elastic component 1d is eliminated by compressive deformation to the gap 1e When, the lower face of casing 1b is combined with the convex table top of boss 1c so that excessive pulling force directly passes through knot on idler arm Conjunction face passes to casing 1b, and is effectively undertaken by the associated components of the utility model, and elastic component 1d is enable to be continuously in just Normal can working condition；After the pulling force on idler arm releases, elastic component 1d resets, and the gap 1e restores, the bullet of this example Property part 1d be butterfly spring part, elastic component 1d to the idler arm of wind-proof pull rod under tension from cushioning effect, can avoid tying The component in conjunction face causes hard breakdown, is conducive to the stabilization of working condition.

Equipped with the second connector 2, the epimere of second connector 2 is screw pair with the casing 1b on the idler arm 1 Connection structure, the hypomere of second connector 2 connect solid with 4 epimere of third connector in the fixed seat 3 for screw pair Determine structure；The epimere of second connector 2 is the first thread segment 2a, and hypomere is the second thread segment 2b, the in the fixed seat Three connectors, 4 epimere be thread segment 4a, the thread segment of the first thread segment 2a and described sleeve pipe 1b of 2 epimere of the second connector Form the screw pair connection structure, the second thread segment 2b and the third in the fixed seat of 2 hypomere of the second connector The thread segment 4a of 4 epimere of connector forms the screw pair connection fixed structure.

Second thread segment 2b of 2 hypomere of the second connector can be internal thread pipe sleeve thread segment or vertical screw rod, institute The thread segment 4a for stating 4 epimere of third connector in fixed seat is the pipe sleeve thread segment of corresponding vertical screw rod or internal thread, i.e., When the second thread segment 2b of 2 hypomere of the second connector is the pipe sleeve thread segment of internal thread, 4 epimere of third connector in fixed seat Thread segment 4a then for corresponding vertical screw rod, referring to Fig. 1, when the second thread segment 2b of 2 hypomere of the second connector is vertical spiral shell During bar, the thread segment 4a of 4 epimere of third connector is then corresponding pipe sleeve thread segment in fixed seat, referring to Fig. 5；The pipe sleeve spiral shell The outer end of line section sets tubaeform ways, and the outer end of the vertical screw rod is equipped with cone-shaped structure, the tubaeform guiding Towards the vertical screw rod, the tubaeform ways interacts with the cone-shaped structure for the flaring of component, the During two connectors 2 decline, guiding has been combined to the initial of thread segment 4a of the second thread segment 2b and 4 epimere of third connector Effect；In this example, the second thread segment 2b of 2 hypomere of the second connector is the pipe sleeve thread segment of internal thread, the in fixed seat The thread segment 4a of three connectors, 4 epimere is corresponding vertical screw rod.First thread segment 2a of 2 epimere of the second connector and set Third connects on the screw pair and the second thread segment 2b of 2 hypomere of the second connector and fixed seat 3 that the thread segment of pipe 1b is formed The rotation direction of the screw pair that the thread segment 4a of 4 epimere of fitting is formed is identical, screw pitch is equal.

Second connector 2 is equipped with and can be manually rotated component 2c, and the second connection of component drive is can be manually rotated rotating this When part 2 rotates, frictional force acts on and can avoid the set caused by the faying face of casing 1b lower faces and the boss 1c Therefore pipe rotation, rotates this and can be manually rotated in component drive 2 rotation process of the second connector, the second connector 2 can be along the set The thread segment of pipe 1b rises or falls, the decline of second connector 2, and the thread segment of hypomere can be with the third in fixed seat The thread segment of 4 epimere of connector, which is realized, to be combined, until being attached to set connection stationary state.

Carrying out 2 hypomere the second thread segment 2b of the second connector and 4 epimere thread segment 4a of third connector in fixed seat In connection procedure, when the second thread segment 2b and 4 epimere thread segment 4a of third connector in fixed seat of 2 hypomere of the second connector exist Misfit when initially combining, the two occurs to generate a upward reaction to the second connector with respect to collision During power, under the freedom after can rising and rise along the idler arm under external force due to the casing 1b for being located at 1 hypomere of idler arm Drop, casing 1b accordingly rise along idler arm and generate yielding, and the second connector 2 is with casing 1b risings yielding and described in eliminating Reaction force, continuous rotation can be manually rotated component 2c and drives during the second connector 2 rotates and decline, second spiral shell The end of thread of line section 2b is coincide with the end of thread of 4 epimere thread segment 4a of third connector by break-in, until smoothly entering With reference to casing 1b is resetted therewith freely declining.

Lock chamber 3a equipped with spherical face or arc surface in the fixed seat 3, locking on the roof of chamber 3a has triangle or four sides The through-hole 3b of shape or polygon, 4 lower part of third connector are equipped with boss body 4b, and boss body 4b is located at the lock chamber 3a Interior, the boss face of boss body 4b is corresponding with the spherical face of the lock chamber 3a or arc surface Cavity surface and coordinates, and have can Relative sliding Fit clearance, the two with spherical face or arc surface contact be combined with conducive to the stabilization under stress；The third connection The stage casing 4c of part 4 is located in the through-hole 3b on lock chamber 3a roofs, and the stage casing 4c external surface shapes of third connector 4 are in company with described logical The shape of hole 3b, i.e., corresponding with the triangle of through-hole 3b or quadrangle or polygonal shape, the through-hole 3b of Fig. 3 displayings is four Side shape structure, the stage casing 4c of third connector 4 is then corresponding quadrilateral structure, the stage casing 4c of through-hole 3b and third connector 4 Outer surface uses triangle or the fit structure of quadrangle or polygon, in the second thread segment 2b of 2 hypomere of the second connector With that in the cohesive process of the thread segment 4a of 4 epimere of third connector, can prevent the thread segment 4a on third connector 4 from generating freely Rotation realizes that the thread segment 4a of the second thread segment 2b and 4 epimere of third connector enter combination；The fixed seat 3 of diagram by Bottom plate and two short slabs being symmetrical set positioned at substrate are formed, and the combination of two short slab is simultaneously connected and composed with the bottom plate The lock chamber 3a and through-hole 3b, 4 epimere thread segment 4a of third connector are exposed to except through-hole 3b.

In addition, equipped with the limiting device 5 for idler arm 1, the limiting device 5 includes the symmetrically arranged semicircle shape of two pieces The bearing 5b being connect with crane upper member is useful on component 5a, the semicircle shape component 5a, is equipped in semicircle shape component 5a Spring part 5d is set between semicircle shape tube body 5c, semicircle shape tube body 5c and semicircle shape component 5a, the both ends of spring part 5d respectively with Semicircle shape component 5a, the 5c connections of semicircle shape tube body, the semicircle shape tube body 5c of two pieces symmetrical structure combine circular hole 5e in composition, installation It is located in the interior circular hole 5e in the idler arm 1 of the wind-proof pull rod on crane, flexibility is carried out to the idler arm 1 of suspended state Limiting generates swing to avoid wind-proof pull rod lower part in crane walking or operational process.

Second connector 2 declines along casing 1b, until the second thread segment 2b of its hypomere and 4 epimere of third connector Thread segment 4a be completely combined, wind-proof pull rod i.e. locate working condition, referring to Fig. 2；Rotate backward the manual rotation on the second connector Turn component 2c, the second connector 2 rises to set height (distance), the second spiral shell of 2 hypomere of the second connector therewith Line section 2b is exited and the combination of the thread segment 4a, and the working condition of wind-proof pull rod releases, and crane, which can then enter, treats work Make state.

Embodiment 2, referring to Fig. 5.

Including idler arm 1 and fixed seat 3,1 upper end of idler arm is equipped with the first connector being connect with the component on crane 1a；It with the first connector 1a lower ends is that thread fitting is connect, and is fixed with pin that schematic structure, which is 1 upper end of idler arm,；Described There are many implement structure by a connection piece 1a.

Casing 1b is set on the hypomere of the idler arm 1, and casing 1b is supported by the boss 1c of 1 lower end of idler arm, in external force Under effect, casing 1b can freely declining along the rising of 1 hypomere of idler arm and after rising；Under described sleeve pipe 1b lower ends and idler arm 1 Hold sets elastic component 1d, elastic component 1d to be positioned on the idler arm 1 on the faying face of boss 1c, and casing 1b lower faces are with drawing There are one avoided during compressive deformation being broken between ring for elastic component 1d between the faying face of 1 lower end boss 1c of rod piece Gap 1e, elastic component 1d be butterfly spring part, elastic component 1d to the idler arm of wind-proof pull rod under tension from cushioning effect, can The component of faying face is avoided to cause hard breakdown, is conducive to the stabilization of working condition.

Equipped with the second connector 2, the epimere of second connector 2 is screw pair with the casing 1b on the idler arm 1 Connection structure, the hypomere of second connector 2 connect solid with 4 epimere of third connector in the fixed seat 3 for screw pair Determine structure；The epimere of second connector 2 is the first thread segment 2a, and hypomere is the second thread segment 2b, the in the fixed seat Three connectors, 4 epimere be thread segment 4a, the thread segment of the first thread segment 2a and described sleeve pipe 1b of 2 epimere of the second connector Form the screw pair connection structure, the second thread segment 2b and the third in the fixed seat of 2 hypomere of the second connector The thread segment 4a of 4 epimere of connector forms the screw pair connection fixed structure.

In this example, the second thread segment 2b of 2 hypomere of the second connector is vertical screw rod, third connector in fixed seat The thread segment 4a of 4 epimeres is the pipe sleeve thread segment of corresponding internal thread, and the outer end of the pipe sleeve thread segment sets tubaeform guiding Component, the outer end of the vertical screw rod are equipped with cone-shaped structure, and the flaring of the tubaeform ways is towards described vertical Screw rod, the tubaeform ways and the cone-shaped structure interact, during the decline of the second connector 2, to the Initial combine of the two thread segment 2b and thread segment 4a of 4 epimere of third connector play the guiding role；Second connector, 2 epimere The screw pair that forms of thread segment of the first thread segment 2a and casing 1b and the second thread segment 2b of 2 hypomere of the second connector With the thread segment 4a of 4 epimere of third connector in fixed seat 3 screw pairs formed rotation direction is identical, screw pitch is equal.

The other the same as in Example 1, referring to Fig. 5, Fig. 1.

In implementation, 2 epimere of the second connector is self-locking with the screw pair that the casing 1b on the idler arm 1 is formed Thread matching structure, 2 hypomere of the second connector are certainly with the screw pair that 4 epimere of third connector in the fixed seat 3 is formed Locking-type thread matching structure；Self-locking matching thread structure can be such that the connection of 1 lower end of idler arm and fixed seat fixes in stabilization Reliable behavior.

The described specific implementation structure of above-mentioned two embodiment does not include the specific reality of the utility model whole Structure is applied, other specific implementation structures according to the utility model belong to the range of the utility model covering.

Claims (7)

1. a kind of wind-proof pull rod of crane, including idler arm (1) and fixed seat (3), idler arm (1) upper end is equipped with and crane On component connection the first connector (1a)；

It is characterized in that：

Casing (1b) is set on the hypomere of the idler arm (1), casing (1b) is supported by the boss (1c) of idler arm (1) lower end, Under external force, freely declining after casing (1b) can rise and rise along idler arm hypomere；

Equipped with the second connector (2), the second connector (2) epimere is spiral with the casing (1b) on the idler arm (1) Secondary connection structure, hypomere and third connector (4) epimere in the fixed seat (3) of second connector (2) are spiral Pair connection fixed structure；

Second connector (2) is equipped with and can be manually rotated component (2c), and the second connection can be driven by rotating this and can be manually rotated component Part (2) rises or falls along described sleeve pipe (1b).

2. a kind of wind-proof pull rod of crane described in accordance with the claim 1, it is characterized in that：Casing (1b) lower end and idler arm (1) elastic component (1d) is set on the composition surface of lower end boss (1c), and elastic component (1d) is limited on idler arm (1), casing (1b) There are one avoided for elastic component (1d) by compressive deformation between lower face and the composition surface of idler arm (1) lower end boss (1c) Destroyed gap (1e).

3. a kind of wind-proof pull rod of crane described in accordance with the claim 1, it is characterized in that：The of second connector (2) hypomere Two thread segments (2b) are pipe sleeve thread segment, and the thread segment (4a) of third connector (4) epimere is corresponding perpendicular in the fixed seat To screw rod, the outer end of the pipe sleeve thread segment sets tubaeform ways, and the outer end of the vertical screw rod is equipped with and the loudspeaker The corresponding cone-shaped structure of shape ways.

4. a kind of wind-proof pull rod of crane described in accordance with the claim 1, it is characterized in that：The of second connector (2) hypomere Two thread segments (2b) are vertical screw rod, and the thread segment (4a) of third connector (4) epimere is corresponding pipe sleeve in the fixed seat Thread segment, the outer end of the pipe sleeve thread segment set tubaeform ways, and the outer end of the vertical screw rod is equipped with and the loudspeaker The corresponding cone-shaped structure of shape ways.

5. according to a kind of wind-proof pull rod of crane described in claims 1 or 2, it is characterized in that：It is equipped in fixed seat (3) spherical Face or the lock chamber (3a) of arc surface lock the through-hole (3b) for having polygon on the roof of chamber (3a), third connector (4) lower part Equipped with boss body (4b), boss body (4b) is in the lock chamber (3a), the boss face of boss body (4b) and the lock chamber The spherical face of (3a) or arc surface Cavity surface are corresponding simultaneously to be coordinated, and have can Relative sliding fit clearance.

6. according to a kind of wind-proof pull rod of crane described in claims 1 or 2, it is characterized in that：Equipped with for idler arm (1) Limiting device (5), the limiting device (5) include the symmetrically arranged semicircle shape component (5a) of two pieces, the semicircle shape component The bearing (5b) being connect with crane upper member is useful on (5a), semicircle shape tube body (5c) is equipped in semicircle shape component (5a), Spring part (5d) is set between semicircle shape tube body (5c) and semicircle shape component (5a), the both ends of spring part (5d) respectively with semicircle Shape component (5a), semicircle shape tube body (5c) connection, the semicircle shape tube body (5c) of the two pieces symmetrical structure combine circular hole in composition (5e), the idler arm (1) is in the interior circular hole (5e).

7. according to a kind of wind-proof pull rod of crane described in any one of claim 1-4, it is characterized in that：Described second connects The screw pair that fitting (2) epimere and described sleeve pipe (1b) are formed is self-locking thread matching structure, the second connector (2) hypomere with The screw pair that third connector (4) epimere on the fixed seat (3) is formed is self-locking thread matching structure.