阅读说明：本技术 放线滑车引导臂装置 (Guide arm device of paying-off tackle ) 是由 王万福 李伟 胡学文 代天培 马海辉 刘永宽 徐辉 姚净千 张伟 于 2021-08-12 设计创作，主要内容包括：本发明提供了一种放线滑车引导臂装置,包括U型端臂、拼接臂、对接套和连接座；连接座用于与放线滑车支架连接,U型端臂具有U型连接部和两个延伸杆,拼接臂具有两个,每个拼接臂均包括多个顺次分布的拼接杆,延伸杆的一端、拼接杆的两端以及连接座上均设有对接杆,拼接杆上的对接杆与拼接杆同轴设置,延伸杆上的对接杆与延伸杆同轴设置；位于拼接臂首端的拼接杆对应于延伸杆,位于拼接臂末端的拼接杆对应于连接座,对接套套设于相邻两个对接杆的外周,且与对接杆之间轴向限位配合。本发明提供的放线滑车引导臂装置转运、安装均十分方便,同时,无需单独配置不同尺寸的引导臂,大大节约了使用成本。(The invention provides a pay-off tackle guide arm device which comprises a U-shaped end arm, a splicing arm, a butt-joint sleeve and a connecting seat, wherein the splicing arm is connected with the U-shaped end arm; the connecting seat is used for being connected with the paying-off tackle bracket, the U-shaped end arm is provided with a U-shaped connecting part and two extension rods, the number of the splicing arms is two, each splicing arm comprises a plurality of splicing rods which are distributed in sequence, the butt joint rods are arranged on one ends of the extension rods, two ends of each splicing rod and the connecting seat, the butt joint rods on the splicing rods and the splicing rods are arranged coaxially, and the butt joint rods on the extension rods and the extension rods are arranged coaxially; the splicing rod that is located the concatenation arm head end corresponds to the extension rod, and the splicing rod that is located the concatenation arm end corresponds to the connecting seat, and the periphery of two adjacent butt joint poles is located to the butt joint cover, and with the spacing cooperation of axial between the butt joint pole. The paying-off tackle guide arm device provided by the invention is very convenient to transport and install, and meanwhile, guide arms with different sizes are not required to be configured independently, so that the use cost is greatly saved.)

1. A pay-off tackle guide arm device is characterized by comprising a U-shaped end arm, a splicing arm, a butt-joint sleeve and a connecting seat; the connecting seat is used for being connected with a pay-off tackle bracket, the U-shaped end arm is provided with a U-shaped connecting part and two extending rods which are parallel to each other, the extending rods are respectively arranged at two ends of the U-shaped connecting part, the number of the splicing arms is two, each splicing arm comprises a plurality of splicing rods which are distributed in sequence, butt-joint rods are arranged at one end of each extending rod, at two ends of each splicing rod and on the connecting seat, the butt-joint rods on the splicing rods are coaxially arranged with the splicing rods, and the butt-joint rods on the extending rods are coaxially arranged with the extending rods; the splicing rod is located at the head end of the splicing arm and corresponds to the extension rod, the splicing arm is located at the tail end of the splicing arm and corresponds to the connecting seat, the butt joint sleeve is sleeved on the peripheries of the butt joint rods, and the butt joint sleeve is matched with the butt joint rods in a limiting mode in the axial direction.

2. The payoff block guide arm apparatus as claimed in claim 1, wherein said docking sleeve comprises:

the first pair of connecting pieces are arc-shaped pieces; and

the second pair of connecting pieces are arc-shaped pieces;

one side edge of the second pair of connecting pieces is in rotating fit with one side edge of the first pair of connecting pieces, and the other side edge of the second pair of connecting pieces is clamped and locked with the other side edge of the first pair of connecting pieces through a clamping structure;

the periphery of butt joint pole has been seted up a plurality of edges butt joint pole axial distribution's spacing annular, the intrados of first butt joint piece and be equipped with respectively on the intrados of second butt joint piece with the arc arch that spacing annular corresponds.

3. The line tackle guide arm device according to claim 2, wherein a spacer is provided on each of the inward-curved surfaces of the first pair of tabs and the inward-curved surfaces of the second pair of tabs, the spacer being located between the axial end surfaces of two adjacent ones of the pair of abutment bars.

4. The line tackle guide arm assembly of claim 2, wherein the latch structure includes:

a first support plate provided at side edges of the first pair of tabs;

the two buckles are arranged oppositely and at intervals;

the second backup pad is located the lateral margin of second butt joint piece, and is on a parallel with first backup pad, seted up in the second backup pad with the bayonet socket that the buckle corresponds, the end of inserting of buckle is formed with the direction inclined plane.

5. The payoff tackle guide arm apparatus as claimed in claim 4, wherein a first rib is provided between said catch and said first support plate, said first rib being located on an opposite side of said catch.

6. The line tackle guiding arm device as claimed in claim 4, wherein a second rib is formed between the surface of the first supporting plate facing away from the second supporting plate and the first pair of tabs, and the surface of the second supporting plate facing away from the first supporting plate and the second pair of tabs are rounded.

7. The payoff block guide arm device as claimed in claim 1, wherein said connecting seat comprises:

the fixed base body is used for being connected with the pay-off pulley bracket;

the rotary table is rotationally connected with the fixed base body, the butt joint rod is fixedly arranged on the peripheral surface of the rotary table, and the butt joint rod extends along the radial direction of the rotary table;

the angle adjusting structure is arranged between the fixed base and the rotary table and used for driving the rotary table to rotate and enabling the rotary table to be fixed at a specified position.

8. The payoff block guide arm apparatus as claimed in claim 7, wherein said angle adjusting structure comprises:

the adjusting seat body is fixedly connected to the fixed seat body;

the adjusting worm is rotatably connected to the adjusting seat body; and

and the adjusting worm gear teeth are distributed along the circumferential direction of the rotating disc and are meshed with the adjusting worm.

9. The payoff block guide arm assembly as claimed in claim 8, wherein said adjustment housing is formed with a recess on a side facing said turntable, said adjustment worm being matingly disposed in said recess.

10. The pay-off tackle guide arm device as claimed in claim 8, wherein the fixed base is a circular truncated cone, a rotating shaft is coaxially disposed on one side of the fixed base, a limiting boss is protruded from the outer circumference of the rotating shaft, the rotating disc is sleeved on the rotating shaft, and the limiting boss and the fixed base are respectively in contact with and limited by two side surfaces of the rotating disc;

the rotating shaft and the fixed base body are provided with through holes corresponding to each other, and the fixed base body and the pay-off tackle bracket are fixedly connected through a threaded connecting piece penetrating through the through holes.

Technical Field

The invention belongs to the technical field of electric power construction equipment, and particularly relates to a guide arm device of a paying-off tackle.

Background

The paying-off tackle is one of main machines necessary for overhead transmission line engineering stringing construction. The unwrapping wire coaster generally includes that support, actinobacillus wheel, guide rope rotate and go into groove mechanism to and the guide arm, the actinobacillus wheel realizes the unwrapping wire through the rotation around the main shaft, is equipped with the lead wire opening that is located the actinobacillus wheel top on the support, and the guide rope rotates and goes into groove mechanism and locate the lead wire opening part, and the guide arm is connected on the support, and rotates and go into groove mechanism corresponding to the guide rope.

The guide arm of the existing paying-off tackle is obliquely arranged upwards, the length of the guide arm is determined according to the model of the paying-off tackle, and the larger the size of the tackle is, the longer the guide arm is selected. During the operation, carry the guide rope by unmanned aerial vehicle and fly close unwrapping wire coaster department, later unmanned aerial vehicle adjustment self position makes the guide rope of carrying fall into guide rope guide scope, and the guide rope constantly removes to coaster department according to the guide arm guide, and the guide rope that finally accurate entering support side rotates and goes into groove mechanism department, borrows the eccentric rotation that the guide rope rotated and goes into groove mechanism and realizes the accurate groove of guide rope.

The existing paying-off tackle generally needs to assemble a guide arm and a frame before use, and the guide arm is very difficult to transport and install due to the long length of the guide arm; in addition, aiming at the paying-off pulleys with different volumes, the guide arms with different lengths are required to be configured, so that the configuration quantity of the guide arms is large, and the use cost is high.

Disclosure of Invention

The embodiment of the invention provides a pay-off tackle guide arm device, which aims to improve the convenience degree of transferring and installing operation of a guide arm and reduce the use cost of the guide arm.

In order to achieve the purpose, the invention adopts the technical scheme that:

there is provided a payoff tackle guide arm device including:

the U-shaped end arm, the splicing arm, the butt joint sleeve and the connecting seat;

the connecting seat is used for being connected with a pay-off tackle bracket, the U-shaped end arm is provided with a U-shaped connecting part and two extending rods which are parallel to each other, the extending rods are respectively arranged at two ends of the U-shaped connecting part, the number of the splicing arms is two, each splicing arm comprises a plurality of splicing rods which are distributed in sequence, butt-joint rods are arranged at one end of each extending rod, at two ends of each splicing rod and on the connecting seat, the butt-joint rods on the splicing rods are coaxially arranged with the splicing rods, and the butt-joint rods on the extending rods are coaxially arranged with the extending rods;

the splicing rod is located at the head end of the splicing arm and corresponds to the extension rod, the splicing arm is located at the tail end of the splicing arm and corresponds to the connecting seat, the butt joint sleeve is sleeved on the peripheries of the butt joint rods, and the butt joint sleeve is matched with the butt joint rods in a limiting mode in the axial direction.

In one possible implementation, the docking sleeve includes:

the first pair of connecting pieces are arc-shaped pieces; and

the second pair of connecting pieces are arc-shaped pieces;

one side edge of the second pair of connecting pieces is in rotating fit with one side edge of the first pair of connecting pieces, and the other side edge of the second pair of connecting pieces is clamped and locked with the other side edge of the first pair of connecting pieces through a clamping structure;

the periphery of butt joint pole has been seted up a plurality of edges butt joint pole axial distribution's spacing annular, the intrados of first butt joint piece and be equipped with respectively on the intrados of second butt joint piece with the arc arch that spacing annular corresponds.

In a possible implementation manner, a gasket is respectively arranged on the inner arc surfaces of the first butt joint piece and the second butt joint piece, and the gasket is located between the axial end surfaces of two adjacent butt joint rods.

In one possible implementation, the clamping structure includes:

a first support plate provided at side edges of the first pair of tabs;

the two buckles are arranged oppositely and at intervals;

the second backup pad is located the lateral margin of second butt joint piece, and is on a parallel with first backup pad, seted up in the second backup pad with the bayonet socket that the buckle corresponds, the end of inserting of buckle is formed with the direction inclined plane.

In a possible implementation manner, a first reinforcing rib is arranged between the buckle and the first supporting plate, and the first reinforcing rib is positioned on the opposite side of the buckle.

In a possible implementation manner, the first supporting plate deviates from the surface of the second supporting plate and a second reinforcing rib is arranged between the first butt joint piece, and the second supporting plate deviates from the surface of the first supporting plate and a second butt joint piece and is in transition through a fillet.

In one possible implementation, the connection socket includes:

the fixed base body is used for being connected with the pay-off pulley bracket;

the rotary table is rotationally connected with the fixed base body, the butt joint rod is fixedly arranged on the peripheral surface of the rotary table, and the butt joint rod extends along the radial direction of the rotary table;

the angle adjusting structure is arranged between the fixed base and the rotary table and used for driving the rotary table to rotate and enabling the rotary table to be fixed at a specified position.

In one possible implementation, the angle adjusting structure includes:

the adjusting seat body is fixedly connected to the fixed seat body;

the adjusting worm is rotatably connected to the adjusting seat body; and

and the adjusting worm gear teeth are distributed along the circumferential direction of the rotating disc and are meshed with the adjusting worm.

In a possible implementation manner, a groove is formed on one side of the adjusting seat body facing the rotary disc, and the adjusting worm is arranged in the groove in a matching manner.

In a possible implementation manner, the fixed base is a circular truncated cone, a rotating shaft is coaxially arranged on one side surface of the fixed base, a limiting boss is convexly arranged on the periphery of the rotating shaft, the rotating disc is sleeved on the rotating shaft, and the limiting boss and the fixed base are respectively in contact with two side surfaces of the rotating disc for limiting;

the rotating shaft and the fixed base body are provided with through holes corresponding to each other, and the fixed base body and the pay-off tackle bracket are fixedly connected through a threaded connecting piece penetrating through the through holes.

The utility model provides an unwrapping wire coaster guide arm device, the mode that butt joint sleeve wherein passes through the suit realize with the radial spacing of butt joint pole, and it is spacing to have reliable axial between the two, therefore, through to the dismouting between butt joint sleeve and the butt joint pole, U type end arm and concatenation arm can be realized, between concatenation arm and the connecting seat, and the connection dismantled between the adjacent concatenation pole in the concatenation arm, based on this, can dismantle each spare part in the unwrapping wire coaster guide arm device respectively, reduce and accomodate the volume, the convenient transportation.

During the equipment, can be with the connecting seat at first with unwrapping wire coaster leg joint, connect terminal splice bar afterwards on the connecting seat, install other splice bars one by one afterwards, form the concatenation arm, finally install U type end arm at the head end of concatenation arm, the guide arm becomes, the degree of difficulty of the part of direct assembly bulky, the installation that effectively reduces is avoided to this kind of mounting means.

In addition, to not unidimensional unwrapping wire coaster, the splice arm of different length is constituteed to the splice rod that can select different quantity, still can select for use the U type end arm that has different width (the interval of two extension rods is different), and the flexibility that spare part chooseed for use is strong, and a whole set of spare part can assemble into the guide arm device of multiple not unidimensional, need not the not guide arm of individual configuration not, has practiced thrift use cost greatly.

Drawings

FIG. 1 is a schematic view of an assembly structure of a line tackle guide arm device according to an embodiment of the present invention;

FIG. 2 is a view of the pay-off block guide arm assembly of FIG. 1 taken along direction C;

FIG. 3 is a schematic view of an assembly structure of a splicing rod, a butt-joint rod and a butt-joint sleeve adopted in the embodiment of the present invention;

FIG. 4 is a schematic top view of the docking sleeve of FIG. 3;

FIG. 5 is an enlarged view of the snap-fit arrangement of FIG. 4;

FIG. 6 is a left side view of the first support plate of FIG. 5;

FIG. 7 is a right side view of the first support plate of FIG. 5;

FIG. 8 is a right side view of the second support plate of FIG. 5;

FIG. 9 is a left side view of the second support plate of FIG. 5;

FIG. 10 is a schematic view of an assembly structure of a connecting seat, a butt rod, a splicing rod, a butt sleeve and a stringing pulley bracket adopted in the embodiment of the invention;

fig. 11 is an enlarged view of the connecting socket of fig. 10;

FIG. 12 is a cross-sectional view A-A of FIG. 11;

FIG. 13 is a view of the angle adjustment structure of FIG. 11 in the direction of B;

fig. 14 is a schematic view of an assembly structure between the splicing rod and the connecting seat according to the embodiment of the present invention.

Description of reference numerals:

100. a U-shaped end arm;

110. an extension rod;

120. a U-shaped connecting part;

200. a splicing arm;

210. splicing rods;

211. splicing the core rods; 212. an elastic layer;

300. butting sleeves;

310. a first pair of tabs;

320. a second pair of tabs;

330. an arc-shaped bulge;

340. a gasket;

350. a clamping structure;

351. a first support plate; 352. buckling; 353. a second support plate; 354. a bayonet; 355. a guide slope; 356. a first reinforcing rib; 357. a second reinforcing rib;

400. a connecting seat;

410. fixing the base;

420. a turntable;

430. an angle adjustment structure;

431. adjusting the seat body; 432. adjusting the worm; 433. adjusting worm gear teeth; 434. a groove; 435. a rotating shaft; 436. a limiting boss; 437. a through hole; 438. adjusting the handle;

500. paying off a pulley bracket;

600. a docking rod;

610. a limiting ring groove;

700. and guiding the rope.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 14 together, the guide arm device of the payoff tackle provided by the present invention will now be described. The stringing pulley guide arm device comprises a U-shaped end arm 100, a splicing arm 200, a butt joint sleeve 300 and a connecting seat 400.

Connecting seat 400 is used for being connected with unwrapping wire coaster support 500, U type end arm 100 has U type connecting portion 120 and two extension rods 110 that are parallel to each other, the both ends of U type connecting portion 120 are located respectively to two extension rods 110, concatenation arm 200 has two, every concatenation arm 200 all includes a plurality of splicing rod 210 that distribute in order, extension rod 110's one end, all be equipped with butt joint rod 600 on splicing rod 210's both ends and the connecting seat 400, butt joint rod 600 and the coaxial setting of splicing rod 210 on the splicing rod 210, butt joint rod 600 and the coaxial setting of extension rod 110 on the extension rod 110.

The splicing rod 210 at the head end of the splicing arm 200 corresponds to the extension rod 110, the splicing rod 210 at the tail end of the splicing arm 200 corresponds to the connecting seat 400, the abutting sleeve 300 is sleeved on the peripheries of two adjacent abutting rods 600, and the abutting sleeve 300 and the abutting rods are in axial limiting fit along the abutting rods 600.

The unwrapping wire coaster guide arm device that this embodiment provided, compared with prior art, the mode that butt joint sleeve 300 wherein passes through the suit realizes with butt joint pole 600 radially spacing, and it is spacing to have reliable axial between the two, therefore, through to the dismouting between butt joint sleeve 300 and the butt joint pole 600, can realize U type end arm 100 and concatenation arm 200, between concatenation arm 200 and the connecting seat 400, and the connection dismantled between the adjacent concatenation pole 210 in the concatenation arm 200, based on this, can dismantle respectively each spare part in the unwrapping wire coaster guide arm device, reduce and accomodate the volume, conveniently transport.

During the equipment, can be connected connecting seat 400 at first with unwrapping wire coaster support 500, connect terminal splice bar 210 afterwards on connecting seat 400, install other splice bars 210 one by one afterwards, form concatenation arm 200, finally install U type end arm 100 at the head end of concatenation arm 200, the guide arm becomes, and this kind of mounting means avoids directly assembling bulky part, the degree of difficulty of the installation that effectively reduces.

In addition, for the unwrapping wire coaster of unidimensional not, the concatenation arm 200 of different length is constituteed to the optional concatenation pole 210 that uses different quantity, still can choose for use the U type end arm 100 that has different width (the interval of two extension rod 110 is different), and the flexibility that spare part chooseed for use is strong, and the guide arm device of multiple unidimensional can be assembled into to a whole set of spare part, need not to dispose the guide arm of unidimensional alone, has practiced thrift use cost greatly.

On the basis of the above embodiments, referring to fig. 1 to 14, in order to avoid the guide arm from wearing the guide rope and simultaneously avoid forming step obstacles in the guide process and influencing the guide smoothness, the following settings are also performed:

the splicing rod 210 comprises a splicing core rod 211 and an elastic layer 212, the splicing core rod 211 is a rigid rod, the outer diameter of the butt joint rod 600 is the same as that of the splicing core rod 211, and the elastic layer 212 is sleeved outside the splicing core rod 211; the extension rod 110 has a structure similar to the splice rod 210, and has a core rod inside, an elastic layer is wrapped around the core rod, and the outer diameter of the elastic layer on the extension rod 110 is the same as the outer diameter of the elastic layer 212 on the splice rod 210.

Meanwhile, for the convenience of connection, the outer diameter of the docking rod 600 on the extension rod 110 is the same as the outer diameter of the docking rod 600 on the splicing rod 210, and the outer diameter of the docking rod 600 on the connecting seat 400 is the same as the outer diameter of the docking rod 600 on the splicing rod 210, so that the docking sleeve 300 with the same size can be used for realizing docking limit.

In some embodiments, referring to fig. 4-10, docking sleeve 300 includes a first pair of tabs 310 and a second pair of tabs 320.

The first pair of connecting pieces 310 and the second pair of connecting pieces 320 are arc-shaped pieces, one side edge of the second pair of connecting pieces 320 is in rotating fit with one side edge of the first pair of connecting pieces 310, and the other side edge of the second pair of connecting pieces 320 and the other side edge of the first pair of connecting pieces 310 are locked in a clamping mode through a clamping structure 350.

The periphery of the butt joint rod 600 is provided with a plurality of limit ring grooves 610 distributed along the axial direction of the butt joint rod, and the inner arc surfaces of the first butt joint piece 310 and the second butt joint piece 320 are respectively provided with an arc-shaped protrusion 330 corresponding to the limit ring grooves 610.

When in use, the first pair of connecting pieces 310 and the second pair of connecting pieces 320 can be respectively attached around two sides of two adjacent connecting rods 600, the arc-shaped protrusions 330 on the first pair of connecting pieces 310 and the second pair of connecting pieces 320 respectively correspond to the corresponding limiting ring grooves 610, and finally the clamping structure 350 is clamped and locked, i.e., the reverse operation and the disassembly are performed, which is not described herein again.

It should be noted that the latch structure 350 needs to be located on the opposite side of the contact surface of the leader 700 after installation to avoid affecting the movement of the leader 700.

It should be appreciated that the docking sleeve 300 of the present application is a rigid member to avoid bending of the joint due to the material of the docking sleeve 300 being too soft after the connection.

The butt joint sleeve 300 of the embodiment is simple in structure and convenient to assemble and disassemble, axial limiting is achieved through clamping of the arc-shaped protrusions 330 and the limiting ring grooves 610, limiting effect is reliable, and connection reliability is high.

On the basis of the above embodiment, referring to fig. 4 to 10, the shim 340 is respectively disposed on the inner arc surface of the first pair of contact pieces 310 and the inner arc surface of the second pair of contact pieces 320, and the shim 340 is located between the axial end surfaces of two adjacent contact rods 600.

By providing the spacer 340, a certain interval can be maintained between the adjacent docking rods 600, thereby preventing direct contact abrasion between the docking rods 600.

Alternatively, the gasket 340 may be an elastic rubber gasket, and is fixed to the first pair of tabs 310 or the second pair of tabs 320 by vulcanization or the like.

In some embodiments, referring to fig. 4-10, the clamping structure 350 includes a first support plate 351, a clamp 352, and a second support plate 353.

The first support plate 351 is provided at the side edges of the first pair of tabs 310; the number of the buckles 352 is two, and the two buckles 352 are back to back and are arranged at intervals; the second support plate 353 is disposed at the side edges of the second pair of tabs 320 and is parallel to the first support plate 351, a bayonet 354 corresponding to the buckle is disposed on the second support plate 353, and a guide inclined surface 355 is formed at the insertion end of the buckle 352.

This embodiment can realize the joint locking through making two buckles 352 and same bayonet 354 joint, exerts the extrusion force to the joint end of two buckles 352, makes the joint end of buckle 352 be close to relatively, can make buckle 352 break away from bayonet 354. The simple structure of this embodiment, loading and unloading are convenient, and the one hand can realize dismantling, and the joint locking is reliable simultaneously, avoids connecting the problem of inefficacy in the use.

In addition, the guiding inclined surface 355 provided in the present embodiment guides the two hooks 352, so that the two hooks 352 can be smoothly inserted into the bayonets 354.

Referring to fig. 4 to 10, in order to prevent the root of the catch 352 from being broken, a first reinforcement rib 356 is provided between the catch 352 and the first support plate 351, and the first reinforcement rib 356 is located at an opposite side of the catch 352. The embodiment realizes reinforcement at the root and the middle part of the buckle 352, and effectively avoids the problem of breakage of the buckle 352.

Referring to fig. 4 to 10, a second rib 357 is disposed between the surface of the first support plate 351 facing away from the second support plate 353 and the first pair of tabs 310, and a rounded corner is formed between the surface of the second support plate 353 facing away from the first support plate 351 and the second pair of tabs 320.

In the embodiment, the second reinforcing ribs 357 play a role in supporting and reinforcing the first support plate 351, so that the root of the first support plate 351 is prevented from being broken; according to the stress form of the second supporting plate 353, the root of the second supporting plate 353 is subjected to stress dispersion through fillet transition, and breakage is avoided.

In some embodiments, referring to fig. 10 to 13, the connection seat 400 includes a fixed seat 410, a rotation plate 420 and an angle adjusting structure 430.

The fixed base 410 is used for connecting with the stringing pulley bracket 500; the rotary table 420 is rotatably connected to the fixed base 410, the butt joint rod 600 is fixedly arranged on the outer peripheral surface of the rotary table 420, and the butt joint rod 600 extends along the radial direction of the rotary table 420; the angle adjusting structure 430 is disposed between the fixed base 410 and the rotary plate 120, and is used for driving the rotary plate 420 to rotate, and fixing the rotary plate 420 at a designated position.

The cooperation of concatenation arm 200 and U type end arm 100 forms the guide arm module, and this embodiment drives the carousel 120 through angle modulation structure 430 and rotates, and then can realize the relative angle of guide arm module for unwrapping wire coaster support 500, and then can be according to the inclination of in-service use demand preset guide arm module, convenient follow-up use.

Specifically, referring to fig. 10 to 13, the angle adjusting structure 430 includes an adjusting seat 431, an adjusting worm 432 and an adjusting worm gear 433.

The adjusting seat 431 is fixedly connected to the fixing seat 410; the adjusting worm 432 is rotatably connected to the adjusting seat 431; the teeth of the adjusting worm gear 432 are distributed along the circumferential direction of the rotating disc 420, and the teeth 433 of the adjusting worm gear are meshed with the adjusting worm 432.

When the rotary table is used, the adjusting worm 432 is screwed, and the adjusting worm 432 acts on the adjusting worm gear teeth 433 to drive the rotary table 420 to rotate; after the adjustment is finished, self-locking can be achieved between the adjusting worm 432 and the adjusting worm gear 433, and the position of the turntable 420 can be locked without additionally arranging a locking structure. The angle adjusting structure 430 provided by the embodiment has the advantages of simple and compact structure, convenience in operation, strong adjusting flexibility and wide adjustable angle range.

Alternatively, referring to fig. 10 to 13, in order to facilitate screwing the adjusting worm 432, an adjusting handle 438 is provided at an end of the adjusting worm 432, and a friction protrusion is provided on an outer circumference of the adjusting handle 438 to increase friction force and prevent slipping.

On the basis of the above embodiments, referring to fig. 10 to 13, a groove 434 is formed on one side of the adjusting seat 431 facing the rotating disc 420, and the adjusting worm 432 is fittingly disposed in the groove 434. The effective transmission part in the adjusting worm 432 is exposed through the groove 434, the two ends of the adjusting worm 432 are in running fit with the adjusting seat body 431, the assembling requirement of the adjusting worm 432 is met, the meshing requirement of the adjusting worm teeth 433 is met, the structure is simple and compact, and the setting is reasonable.

Referring to fig. 10 to 13, in order to reduce the gap between the adjusting seat 431 and the rotating disc 420 and make the structure more simple and compact, the adjusting seat 431 is a fan-shaped seat, and one side of the adjusting seat facing the rotating disc 420 is a cambered surface coaxial with the rotating disc 420, and the groove 434 is located inside the cambered surface.

In some embodiments, referring to fig. 10 to 13, the fixed seat 431 is a circular truncated cone, a rotating shaft 435 is coaxially disposed on one side surface of the fixed seat 431, a limiting boss 436 is convexly disposed on the outer periphery of the rotating shaft 435, the rotating disc 420 is sleeved on the rotating shaft 435, and the limiting boss 436 and the fixed seat 431 are respectively in contact with two side surfaces of the rotating disc 420 for limiting.

The rotating shaft 135 and the fixed base 431 are provided with through holes 437 corresponding to each other, and the fixed base 431 and the wire tackle bracket 500 are fixedly connected by a threaded connector penetrating through the through holes 437.

In the embodiment, the axial limit of the turntable 420 is realized through the limit boss 436 and the fixed base 431, the radial limit of the turntable 420 is realized through the rotating shaft 435, the assembly is reliable, and the use stability is good; meanwhile, the space of the rotating shaft 135 is fully utilized, the fixed connection with the paying-off tackle bracket 500 is realized by arranging the through hole 437, the structure is simple and compact, the number of connection point positions is small, and the requirement on assembly stability can be met.

Optionally, in order to prevent the fixed base 431 from rotating relative to the stringing pulley bracket 500, a friction layer is disposed on one side of the fixed base 431 facing the stringing pulley bracket 500, so as to increase the friction resistance between the fixed base 431 and the stringing pulley bracket 500.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.