CN208309920U - Attachment device - Google Patents

Abstract

The utility model relates to a kind of attachment devices.A kind of attachment device, what can be rotated is fixed on drag-line, including the first connection structure and the second connection structure.First connection structure includes the first rotating member, the first reinforcing member and the first connector, and the second connection structure includes the second rotating member, the second reinforcing member and the second connector.First rotating member has first end face and the first circumferential surface, and the second rotating member has second end face and the second circumferential surface.Wherein, first end face is bonded with second end face, and the second reinforcing member supports the first circumferential surface and the first reinforcing member supports the second circumferential surface.Above-mentioned attachment device can adjust the angular adjustment of two connection structures, and increase the forced area of the first connector and the second connector, but also more firm between the first connector and the second connector, the quality that can carry object increases.

Description

Attachment device

Technical field

The utility model relates to a kind of attachment device and its components, more particularly to glass curtain wall attachment device.

Background technique

With increasingly developed, aesthetic feeling requirement raising of the people to building of modern architecture industry, the configuration design of building It is more and more abundant.Peripheral structure of the curtain wall as building main body, angle is not between needing to adapt to curtain wall plate of different shapes Same design requirement, to meet people for the design requirement of different buildings.

Currently, mainly going out the one-to-one angle station of angle according to the angle design of different corners or using multiple planes The splicing of device is fixed to solve the problems, such as corner.The mould of differential profiles is needed out when using the attachment device for customizing different angle Tool, poor universality is at high cost, and complicated for operation using the angle station that multiple plane fixings are spliced into different angle, applies Work difficulty is big.In addition, angle station stress unbalance stress in use, makes the ability for carrying object be often below its maximum Load.

Utility model content

Based on this, it is necessary to which the problem that angular adjustment and carrying object for existing attachment device are limited provides one kind Attachment device.

A kind of attachment device, what can be rotated is fixed on drag-line, comprising:

First connection structure, including the first rotating member, the first reinforcing member and the first connector, first rotating member can It is clamped and fastened on the drag-line, the first circumferential surface that first rotating member has first end face and connect with the first end face, First reinforcing member is affixed with first circumferential surface and is convexly equipped in the first end face, first connector and described first Reinforcing member is affixed；

Second connection structure, including the second rotating member, the second reinforcing member and the second connector, second rotating member can It is clamped and fastened on the drag-line, the second circumferential surface that second rotating member has second end face and connect with the second end face, Second reinforcing member is affixed with second circumferential surface and is convexly equipped in the second end face, second connector and described second Reinforcing member is affixed；

Wherein, the first end face is bonded with the second end face, second reinforcing member support first circumferential surface and First reinforcing member supports second circumferential surface.

Above-mentioned attachment device, including the first connection structure and the second connection structure, the first connection structure include the first rotation Part, the first connector and the first reinforcing member；Second connection structure includes the second rotating member, the second connector and the second reinforcing member. First reinforcing member is fixedly connected with the first connector and the first rotating member, the second reinforcing member and the second connector and the second rotation section It is fixedly connected, increases the forced area of the first connector and the second connector, but also the first connector and the second connector Between it is more firm, the first connector and the second connector are able to bear the object of bigger quality, increase attachment device and hold By the ability of weight.In addition, the first reinforcing member and the second reinforcing member help to limit when adjusting angle.Moreover, assembling When, as the first connection structure is fixed with support construction, the second connection structure is also reached pre- with the fixation of the first connection structure Fixed position, only need to reinforce the second connection structure, convenient for the second connection structure installation, it can be achieved that attachment device angle Adjusting and Fast Installation.

In one of the embodiments, first rotating member include the first rotation section and the second rotation section, described first Rotation section and first connector are affixed, and first rotation section and second rotation section are movably affixed；And/or institute Stating the second rotating member includes third rotation section and the 4th rotation section, and the third rotation section and second connector are affixed, institute It is movably affixed to state third rotation section and the 4th rotation section.

First rotation section is from one end far from first connector to close to described in one of the embodiments, The direction of first connector is recessed to form the first groove, and second rotation section is from one end close to first connector to remote Direction from first connector is recessed to form the second groove, and first groove and second groove form the first installation Slot is partially to accommodate the drag-line；And/or

The third rotation section is recessed to the direction close to second connector from one end far from second connector It falls into and forms third groove, the 4th rotation section is recessed from one end close to the second connector to separate second connector direction It falls into and forms the 4th groove, the third groove and the 4th groove form the second mounting groove partially to accommodate the drag-line.

First connection structure further includes third reinforcing member and the 4th reinforcing member in one of the embodiments, described Third reinforcing member from first rotation section to far from the first end face direction extend and with first reinforcing member interval Setting, the third reinforcing member are formed with the 5th groove being connected to first groove, and the 4th rotation section is at least partly It is held between first reinforcing member and the third reinforcing member；4th reinforcing member is from second rotation section to far from institute The direction for stating first end face extends and is formed with the 6th groove being connected to second groove, and second rotating member clamps institute State third reinforcing member and the 4th reinforcing member.

The 4th groove compartment of terrain is equipped with multiple first bar shaped teeth, and described first in one of the embodiments, Shape tooth extends along the direction perpendicular to the second end face；Third reinforcing member compartment of terrain is equipped with multiple second bar shaped teeth, and The second bar shaped tooth extends along the direction perpendicular to the first end face, the first bar shaped tooth and the second bar shaped tooth phase Engagement.

First rotation section and second rotation section are spirally connected fixation in one of the embodiments,.

First connection structure further includes the first fastener in one of the embodiments, and first fastener is worn It is affixed to cross first rotation section and second rotation section.

The third rotation section and the 4th rotation section are spirally connected fixation in one of the embodiments,.

First connector is two in one of the embodiments, the setting of two first connector intervals and Plane where two first connectors is perpendicular to the first end face；And/or second connector is two, two Plane where the setting of second installation part interval and two second connectors is perpendicular to the first end face.

A kind of component for the attachment device fixed with drag-line, the component include:

First connection structure, including the first rotating member, the first reinforcing member and the first connector, first rotating member can It is clamped and fastened on the drag-line, the first circumferential surface that first rotating member has first end face and connect with the first end face, First reinforcing member is affixed with first circumferential surface and is convexly equipped in the first end face, first connector and described first Reinforcing member is affixed；

Second connection structure, including the second rotating member, the second reinforcing member and the second connector, second rotating member can It is clamped and fastened on the drag-line, the second circumferential surface that second rotating member has second end face and connect with the second end face, Second reinforcing member is affixed with second circumferential surface and is convexly equipped in the second end face, second connector and described second Reinforcing member is affixed；

Wherein, when the drag-line and first connection structure and second connection structure assemble, the first end Face is bonded with the second end face, and second reinforcing member supports first circumferential surface and first reinforcing member supports described Two circumferential surfaces.

The above-mentioned component for the attachment device fixed with drag-line, can be assembled into above-mentioned attachment device.

Detailed description of the invention

Fig. 1 is the stereogram exploded view of the attachment device of one of embodiment；

Fig. 2 is the schematic top plan view of the attachment device of Fig. 1；

Fig. 3 is the schematic elevation view of the attachment device of Fig. 1；

Fig. 4 is the stereogram exploded view of the attachment device of another embodiment；

Fig. 5 is the stereogram exploded view of the attachment device of another embodiment.

Specific embodiment

The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model, It states.The section Example of the utility model is given in attached drawing.But the utility model can come in many different forms in fact It is existing, however it is not limited to embodiment described herein.On the contrary, purpose of providing these embodiments is discloses this utility model Content is more thorough and comprehensive.

Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be The purpose of description specific embodiment, it is not intended that in limitation the utility model.

Refering to fig. 1, Fig. 2 and Fig. 3, a kind of attachment device 10, including the first connection structure 110 and the second connection structure 130, First connection structure 110 and the second connection structure 130 are capable of clamping and are fixed on drag-line 100.

First connection structure 110 includes the first rotating member 111, the first reinforcing member 115, the first connector 116, third reinforcing Part 117 and the 4th reinforcing member 118.

In the illustrated embodiment, the first rotating member 111 is generally cylindrical, and the first rotating member 111 has first end Face 1110 and the first circumferential surface 1111, the first circumferential surface 1111 are connect with first end face 1110.

In the illustrated embodiment, the first rotating member 111 is split type structure, and the first rotating member 111 includes first turn Dynamic portion 112, the second rotation section 113 and the first fastener 114.First rotation section 112 and the second rotation section 113 substantially semicircle Column.

First rotation section 112 has the first mounting surface 1121 connecting with the first circumferential surface 1111 and first end face 1110, the Two rotation sections 113 have the second mounting surface 1131 connecting with the first circumferential surface 1111 and first end face 1110, the second mounting surface 1131 can be bonded with the first mounting surface 1121, can be by the first rotation section 112 and the second rotation section by the first fastener 114 113 are fixedly connected.

First rotation section 112 offers the first groove 1122, and the first groove 1122 is recessed inwardly from the first mounting surface 1121 It is formed, to accommodate part drag-line 100.First rotation section 112 be equipped with the first fastener hole 1123, the first fastener hole 1123 along perpendicular to The direction of first mounting surface 1121 extends and runs through the first circumferential surface 1111 and the first mounting surface 1121.

Second rotation section 113 offers the second groove 1132, and the second groove is from the second mounting surface 1131 to far from the second peace The direction in dress face 1131 is recessed to be formed, to accommodate part drag-line 100.Second rotation section 113 is equipped with the first coupling hole, and first is affixed Hole extends along the direction perpendicular to the first mounting surface 1121.

First fastener 114 matches with the first fastener hole 1123 and the first coupling hole, and the first fastener 114 can be to Close to or far from the direction movement of the first mounting surface 1121.

In the illustrated embodiment, the first reinforcing member 115 is generally arc-shaped sheet, the first reinforcing member 115 and first week The middle part in face 1111 is affixed, and is convexly equipped in first end face 1110.Certainly, in other embodiments, the first reinforcing member 115 and The affixed position of one rotating member 111 is not limited to the middle part of the first circumferential surface 1111, can also be the other positions of the first circumferential surface 1111.

Third reinforcing member 117 is generally arc-shaped sheet, first end of the third reinforcing member 117 from close first rotation section 111 Face 1110 extends to the direction far from first end face 1110 and is spaced with the first reinforcing member 115 and is arranged.The formation of third reinforcing member 117 There is the 5th groove 1171 being connected to the first groove 1122, to accommodate part drag-line 100.In the illustrated embodiment, the 5th The inner wall of groove 1171 is concordant with the inner wall of the first groove 1122.Between surface of the third reinforcing member 117 far from the first groove 1122 Every multiple second bar shaped teeth 1172 are arranged, the second bar shaped tooth 1172 extends along perpendicular to first end face 1110.

In the illustrated embodiment, the first substantially bar shaped of connector 116, the first connector 116 are one, and first connects One end of fitting 116 is affixed close to one end of the first rotation section 112 with the first reinforcing member 115, and the first connector 116 is far from first One end of reinforcing member 115 is equipped with the first mounting hole 1161, is easily installed the component that glass, steel plate etc. adjust angle.First installation Hole 1161 is one.Certainly, in some other embodiment, the affixed position of the first connector 116 and the first reinforcing member 115 The first reinforcing member 115 is not limited to close to one end of the first rotation section 112, can also be the other positions of the first reinforcing member 115. In other embodiments, the quantity of the first mounting hole 1161 is also not necessarily limited to one, and multiple first installations can be set as needed Hole 1161.

4th reinforcing member 118 is generally arc-shaped sheet, and the 4th reinforcing member 118 is from first end face 1110 to far from first end face 1110 direction extends.4th reinforcing member 118 is formed with the 6th groove being connected to the second groove 1132, to accommodate part drag-line 100.In the illustrated embodiment, the inner wall of the 6th groove is concordant with the inner wall of the second groove 1132.

Second connection structure 130, including the second rotating member, the second reinforcing member 135 and the second connector 136.

In the illustrated embodiment, the second rotating member is generally cylindrical, and the second rotating member has second end face 1310 And second circumferential surface 1311, the second circumferential surface 1311 are connect with second end face 1310.

In the illustrated embodiment, the second rotating member is split type structure, and the second rotating member includes third rotation section 132, the 4th rotation section 133 and the second fastener 134.Third rotation section 132 and the 4th rotation section 133 substantially semicolumn Shape.

Third rotation section 132 has the third mounting surface 1321 connecting with the second circumferential surface 1311 and second end face 1310.The Four rotation sections 133 have the 4th mounting surface 1331 connecting with the second circumferential surface 1311 and second end face 1310.Third mounting surface 1321 can be bonded with the 4th mounting surface 1331, can be by the first rotation section 112 and the second rotation section by the second fastener 134 113 are fixedly connected.

Third rotation section 132 offers third groove 1322, and third groove 1322 is from third mounting surface 1321 to far from the The direction of three mounting surfaces 1321 is recessed to be formed, to accommodate part drag-line 100.4th reinforcing member 118 at least can be partially placed in Third groove 1322, surface of the 4th reinforcing member 118 far from the second groove 1132 can pacify with third groove 1322 far from third The surface in dress face 1321 supports.Third rotation section 132 is equipped with the second fastener hole 1323, and the second fastener hole 1323 is along perpendicular to third The direction of mounting surface 1321 extends and runs through the second circumferential surface 1311 and third mounting surface 1321.

4th rotation section 133 has the 4th mounting surface 1331, and the 4th mounting surface 1331 can be pasted with third mounting surface 1321 It closes, third rotation section 132 and the 4th rotation section 133 can be fixedly connected by the second fastener 134.

4th rotation section 133 offers the 4th groove 1332, and the 4th groove 1332 is from the 4th mounting surface 1331 to far from the The direction of four mounting surfaces 1331 is recessed to be formed.Surface interval setting of 4th groove 1332 far from the 4th mounting surface 1331 is multiple First bar shaped tooth 1333, the first bar shaped tooth 1333 is along the direction extension perpendicular to second end face 1310.First bar shaped tooth, 1332 energy It is enough to be meshed with the second bar shaped tooth 1172, so that the first rotation section 112 and the fixation of the 4th rotation section 133 are more stable.4th turn Dynamic portion 133 offers the second coupling hole 1334, and the first coupling hole extends along the direction perpendicular to the first mounting surface 1121.

Second fastener 134 matches with the second fastener hole 1323 and the second coupling hole 1334, and the second fastener 134 can It is moved to the direction close to or far from third mounting surface 1321.

Second reinforcing member 135 is generally arc-shaped sheet, and the middle part of the second reinforcing member 135 and the second circumferential surface 1311 is affixed, and It is convexly equipped in second end face 1310.Certainly, in other embodiments, the affixed position of the second reinforcing member 135 and the second rotating member It is not limited to the middle part on surface of the third rotation section 132 far from third mounting surface 1321, can also be the second circumferential surface 1311 other Position.

In the illustrated embodiment, the second substantially bar shaped of connector 136, the second connector 136 are one.Second connects One end of fitting 136 is affixed close to one end of third rotation section 132 with the second reinforcing member 135, and the second connector 136 is far from first One end of reinforcing member 115 is equipped with the second mounting hole 1361, is easily installed the component that glass, steel plate etc. adjust angle.Of course, it is possible to Understand, in some other embodiment, the affixed position of the second connector 130 and the second reinforcing member 135 is not limited to the Two reinforcing members 135 can also be the other positions of the second reinforcing member 135 close to one end of third rotation section 132.In the reality of diagram It applies in mode, the second mounting hole 1361 is one.It is understood that in other embodiments, the second mounting hole 1361 Quantity can according to need transformation, and the arrangement of multiple second mounting holes 1361 can also be arranged according to demand.

Certainly, in other some embodiments, the shape of the shape of the first rotating member 111 and the second rotating member is not It is limited to cylindric, can also be the other arbitrary shapes such as square column, polygonal column.The shape of first rotation section 112, second The shape of the shape of rotation section 113, the shape of third rotation section 132 and the 4th rotation section 133 is not limited to semicircle column, also It can be other arbitrary shapes.The shape of first reinforcing member 115, the shape of the second reinforcing member 135, the shape of third reinforcing member 117 The shape of shape and third reinforcing member 118 is not limited to arc-shaped flaky, can also be other arbitrary shapes.First connector 116 Shape and the shape of the second connector 136 are not limited to bar shaped, can also be other arbitrary shapes.

It is understood that in other embodiments, the first fastener 114 can be omitted.When 114 province of the first fastener When slightly, to the first fastener hole 1123 of the first fastener 114 cooperation and the first coupling hole is also corresponding omits, the first rotation section 112 It is fixedly connected by the way of being spirally connected with the second rotation section 113.Certainly, the first connector 116 is also possible to integrated molding.

Certainly, in some other embodiment, the second fastener 134 also be can be omitted.When the second fastener 134 omits When, to the second fastener hole 1323 of the second fastener 134 cooperation and the also corresponding omission of the second coupling hole 1334, third rotation section 132 are fixedly connected by the way of being spirally connected with the 4th rotation section 133.Certainly, the second connector 136 can also be with integrated molding.

It is understood that in some other embodiment, the first groove 1122, the second groove 1132, third groove 1322, at least one in the 4th groove 1332, the 5th groove 1171 and the 6th groove can be omitted, as long as the first rotating member 111 And second rotating member can be fixed with drag-line 100.

The assemble method with drag-line 100 of above-mentioned attachment device 10, comprising the following steps:

S110, the first rotation section 112 and the 4th rotation section 133 are fixed, obtains the first assembly.Specifically, by the 4th rotation Portion 133 is placed between the first reinforcing member 115 and third reinforcing member 117, is bonded first end face 1110 with second end face 1310, First reinforcing member 115 is supported with the second circumferential surface 1311, and the first bar shaped tooth 1333 is engaged with the second bar shaped tooth 1172, obtains first group Fill body.

S120, the first assembly and the second rotation section 113 and the fixation of drag-line 100 are incited somebody to action to obtain, obtains the second assembly.Specifically, First drag-line 100 is placed between the 1132 of the first groove 1122 and the second groove, the first fastener 114 is then passed through into the first fastening Hole 1123 and the first coupling hole are affixed, so that the first groove 1122 and the second groove 1132 form the first mounting groove, the 5th groove 1171 and the 6th groove form third mounting groove, the first mounting surface 1121 is bonded with the second mounting surface 1131,100 part of drag-line appearance It is placed in the first mounting groove 1122 and the second mounting groove 1132, so that the first rotating member 111 is fixed with drag-line 100, obtains second Assembly.Certainly, in other embodiments, the first mounting surface 1121 can not also be bonded with the second mounting surface 1131, as long as First rotating member 111 can be fixed with drag-line 100.

S130, the second assembly and the fixation of third rotation section 132 are incited somebody to action to obtain.Specifically, the second fastener 134 is passed through the Two 1323 holes of fastening and the second coupling hole 1334 are affixed, so that the 4th reinforcing member 118 is bonded with third groove 1322, third installation Face 1321 is bonded with the 4th mounting surface 1331, first end face 1110 and second end face paste 1310 are closed and the second reinforcing member 135 and the One circumferential surface 1111 supports, so that the second rotating member and drag-line 100 are fixed.

It should be noted that above-mentioned attachment device 10 and the assembling of drag-line 100 are not limited to the above method, ability can also be Other assemble methods of domain, as long as the first connection structure 110, the second connection structure 130 and drag-line 100 are fixed to each other.Than Such as, first the second rotation section 113 is bonded with third rotation section 132, then connects the first rotation section 112 with the 4th rotation section 133 It connects, it is then again that they and drag-line 100 is fixed.

Above-mentioned attachment device 10 it is easy to operate with the assemble method of drag-line 100.

For above-mentioned attachment device in disassembly, moving the first fastener 114 to the direction far from the first mounting surface 1121 can Realize the separation of the first rotation section 112 and the second rotation section 113.Make the second fastener 134 to separate third mounting surface 1321 Direction moves the separation that third rotation section 132 and the 4th rotation section 133 can be achieved.By the 4th rotation section 133 to far from first end The direction in face 1110 moves the separation that the first rotation section 112 and the 4th rotation section 133 can be achieved.So above-mentioned attachment device It dismantles also very convenient.

Above-mentioned attachment device 10 after assembling is being adjusted between the first connection structure 110 and the second connection structure 130 When angle, the first fastener 114 can be moved to the direction far from the first mounting surface 1121, so that the first connection structure 110 There is gap between drag-line 100, the first connection structure 110 may be implemented centered on drag-line 100 around 130 turns of the second connection structure Dynamic, the first reinforcing member 115, the second reinforcing member 135, third reinforcing member 117 and the 4th reinforcing member 118 play position-limiting action.Work as rotation First connection structure 110 arrive with the second connection structure 130 in need angle after, by the first fastener 114 to close to first peace The direction in dress face 1121 moves, so that the first connection structure 110 and drag-line 100 are fixed.It is of course also possible to only adjust the second connection The angle between the first connection structure 110 and the second connection structure 130 is realized in the position of structure 130.Also adjustable first Connection structure 110 and the second connection structure 130 adjust position to realize the first connection structure 110 and the second connection structure 130 Between angle.

Above-mentioned attachment device 10, including the first connection structure 110 and the second connection structure 130, the first connection structure 110 packet Include the first rotating member 111, the first connector 116 and the first reinforcing member 115；Second connection structure 130 includes the second rotating member, the Two connectors 136 and the second reinforcing member 135.First reinforcing member 115 and the fixed company of the first connector 116 and the first rotating member 111 It connects, the second reinforcing member 134 is fixedly connected with the second connector 136 and the second rotating member, increases the first connector 116 and The forced area of two connectors 136, but also more firm between the first connector 116 and the second connector 136, the first connection Part 116 and the second connector 136 are able to bear the object of bigger quality, increase the ability that attachment device bears weight.In addition, When adjusting angle, the first reinforcing member 115 and the second reinforcing member 135 help to limit.Moreover, in assembling, with the first company Binding structure 110 and drag-line 100 are fixed, and the second connection structure 130 also reaches scheduled position with the fixation of the first connection structure 110 Set, only need to reinforce the second connection structure 130, convenient for the second connection structure 130 installation, it can be achieved that attachment device 10 angle Degree adjusts and Fast Installation.

Refering to Fig. 4, the attachment device 20 of another embodiment, the structure of attachment device 20 substantially with 10 phase of attachment device Together, difference is, the third reinforcing member of attachment device 20 and the 4th reinforcing member omit.When third reinforcing member and the 4th reinforcing member When omission, the first bar shaped tooth, the second bar shaped tooth, the 5th groove and the 6th groove also omit accordingly.Third groove 2322 and Four grooves 2332 are capable of forming the second mounting groove, and drag-line is enabled at least partly to be placed in the second mounting groove, connect convenient for second Binding structure is fixed with drag-line.

Refering to Fig. 5, the attachment device 30 of another embodiment, the structure of attachment device 30 substantially with 20 phase of attachment device Together, difference is, the first connector 316 is two, two the first connector 316 interval settings, and two the first connectors Plane where 316 perpendicular to first end face 3110.Second connector 336 is two, two the second connector 336 intervals Setting, two the second connectors 336 are substantially symmetrically distributed in the two sides of drag-line, and flat where two the second connectors 336 Face perpendicular to first end face 3110.

Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.

Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed, But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.

Claims (9)

1. a kind of attachment device can be clamped and fastened on drag-line characterized by comprising

First connection structure, including the first rotating member, the first reinforcing member and the first connector, first rotating member can clamp It is fixed on the drag-line, the first circumferential surface that first rotating member has first end face and connect with the first end face is described First reinforcing member is affixed with first circumferential surface and is convexly equipped in the first end face, and first connector and described first is reinforced Part is affixed；

Second connection structure, including the second rotating member, the second reinforcing member and the second connector, second rotating member can clamp It is fixed on the drag-line, the second circumferential surface that second rotating member has second end face and connect with the second end face is described Second reinforcing member is affixed with second circumferential surface and is convexly equipped in the second end face, and second connector and described second is reinforced Part is affixed；

Wherein, the first end face is bonded with the second end face, and second reinforcing member supports first circumferential surface and described First reinforcing member supports second circumferential surface.

2. attachment device according to claim 1, which is characterized in that

First rotating member includes the first rotation section and the second rotation section, and first rotation section and first connector are solid It connects, first rotation section and second rotation section are movably affixed；And/or

Second rotating member includes third rotation section and the 4th rotation section, and the third rotation section and second connector are solid It connects, the third rotation section and the 4th rotation section are movably affixed.

3. attachment device according to claim 2, which is characterized in that

First rotation section is from one end far from first connector to the direction concave shape close to first connector At the first groove, second rotation section is from one end close to first connector to the direction far from first connector Recess forms the second groove, and first groove and second groove form the first mounting groove partially to accommodate the drag-line； And/or

The third rotation section is from one end far from second connector to the direction concave shape close to second connector At third groove, the 4th rotation section is from one end close to the second connector to far from second connector direction concave shape At the 4th groove, the third groove and the 4th groove form the second mounting groove partially to accommodate the drag-line.

4. attachment device according to claim 3, which is characterized in that first connection structure further includes third reinforcing member And the 4th reinforcing member, the third reinforcing member extend from first rotation section to the direction far from the first end face and with institute The setting of the first reinforcing member interval is stated, the third reinforcing member is formed with the 5th groove being connected to first groove, and described the Four rotation sections are at least partly held between first reinforcing member and the third reinforcing member；4th reinforcing member is from described Two rotation sections extend to the direction far from the first end face and are formed with the 6th groove being connected to second groove, described Second rotating member clamps the third reinforcing member and the 4th reinforcing member.

5. attachment device according to claim 4, which is characterized in that the 4th groove compartment of terrain is equipped with multiple first articles Shape tooth, and the first bar shaped tooth extends along the direction perpendicular to the second end face；Third reinforcing member compartment of terrain is equipped with Multiple second bar shaped teeth, and the second bar shaped tooth extends along the direction perpendicular to the first end face, the first bar shaped tooth It is meshed with the second bar shaped tooth.

6. attachment device according to claim 2, which is characterized in that first rotation section and second rotation section spiral shell Connect fixation.

7. attachment device according to claim 2, which is characterized in that first connection structure further includes the first fastening Part, first fastener passes through first rotation section and second rotation section is affixed.

8. attachment device according to claim 2, which is characterized in that the third rotation section and the 4th rotation section spiral shell Connect fixation.

9. attachment device according to claim 2, which is characterized in that first connector is two, two described the Plane where the setting of a connection piece interval and two first connectors is perpendicular to the first end face；And/or

Second connector is two, where two second connector interval settings and two second connectors Plane is perpendicular to the first end face.