阅读说明：本技术 套环接头、拉绳组件及工程机械 (Lantern ring joint, pull rope assembly and engineering machinery ) 是由 徐洪勇 孙沈浩 陈涛 于 2021-01-04 设计创作，主要内容包括：本发明实施例提供了一种套环接头、拉绳组件及工程机械。其中,套环接头包括：固定部和连接部。其中,所述连接部一体成型在所述固定部上并由所述固定部向外延伸。所述固定部能够供一对钢绳中的第一钢绳套接在其上,所述连接部能够连接在第二钢绳的套环上。通过这种结构设置,所述套环接头上的连接部与固定部为一体成型结构,减少了连接件的数量,节约了成本。同时,使用该套环接头,能够减少连接两段钢绳的拉板和销轴的拼装时间,极大减小了拆装难度,并有效提高了拆装效率。(The embodiment of the invention provides a lantern ring joint, a pull rope assembly and engineering machinery. Wherein, the lantern ring connects includes: a fixing portion and a connecting portion. The connecting part is integrally formed on the fixing part and extends outwards from the fixing part. The fixing part can be used for sleeving a first steel rope in the pair of steel ropes, and the connecting part can be connected to the lantern ring of the second steel rope. Through the structure, the connecting part and the fixing part on the lantern ring joint are of an integrally formed structure, so that the number of connecting pieces is reduced, and the cost is saved. Meanwhile, by using the lantern ring joint, the assembling time of the pull plate and the pin shaft for connecting the two sections of steel ropes can be reduced, the disassembling difficulty is greatly reduced, and the disassembling efficiency is effectively improved.)

1. A ferrule-based fitting, comprising: a fixed part and a connecting part which are connected with each other,

the connecting part is integrally formed on the fixing part and extends outwards from the fixing part, the fixing part can be sleeved with a first steel rope in the pair of steel ropes, and the connecting part can be connected to a lantern ring of a second steel rope.

2. The toggle joint according to claim 1, wherein the connecting portion includes a first connecting portion and a second connecting portion, the first and second connecting portions are integrally formed at an end portion of the fixing portion, and the first and second connecting portions are symmetrically and spaced apart along a central axis direction of the fixing portion so that the toggle of the second steel cord can be installed between the first and second connecting portions.

3. The toggle joint according to claim 2, wherein the first connecting portion and the second connecting portion are symmetrically provided with through holes capable of being matched with the toggle of the second steel cord.

4. A ferrule-based fitting according to claim 1, wherein said fixing portion is provided with lightening holes.

5. A pull cord assembly comprising a first steel cord, a second steel cord, a ferrule, a pressed fitting and a ferrule fitting according to any one of claims 2 to 4,

wherein, on the first steel rope, one end butted with the second steel rope is connected on the fixing part of the lantern ring joint in a surrounding way and is fixed by the pressing joint, on the second steel rope, one end butted with the first steel rope is connected on the lantern ring in a surrounding way and is fixed by the pressing joint,

wherein the connecting part of the lantern ring joint is connected with the lantern ring.

6. The pull rope assembly of claim 5, wherein the collar of the second steel rope is provided with a connecting hole, and the first connecting portion and the second connecting portion are symmetrically provided with through holes matched with the connecting hole of the collar of the second steel rope.

7. The pull cord assembly of claim 6, wherein a collar on the second steel cord fits between the first and second connection portions of the collar joint on the first steel cord.

8. The pull rope assembly of claim 7, wherein a fastener is mounted between the loop on the second steel rope and the first and second connection portions on the loop-on nipple on the first steel rope to connect the loop on the second steel rope to the first and second connection portions on the loop-on nipple on the first steel rope.

9. The pull rope assembly of claim 8, wherein a positioning member is further mounted between the loop on the second steel rope and the first and second connecting portions on the loop joint on the first steel rope, the positioning member extending from the first connecting portion through the loop on the second steel rope to the second connecting portion.

10. A working machine, characterized in that the working machine comprises a pull rope assembly according to any one of claims 5-9.

Technical Field

The invention relates to the technical field of hoisting machinery, in particular to a lantern ring joint, a pull rope assembly and engineering machinery.

Background

In construction machines, a pull rope is a structure that transmits a tensile force. For example, a small-tonnage crawler crane is used for a variable-amplitude pull rope, an auxiliary-installed pull rope and the like, and the stress of the small-tonnage crawler crane can be varied from several tons to dozens of tons in actual work. Therefore, the pulling rope is an important component of the construction machine. The overall cable required for construction machinery is long and is generally formed by connecting a plurality of wire rope cables.

For a small-tonnage crawler crane, a main arm pull rope is generally spliced and connected by heavy lantern rings at two ends and two pull plates. When the actual dismouting, because arm-tie weight itself is great, and need carry out fixed connection with two round pin axles after two arm-ties butt joints, lead to the dismouting to connect the difficulty, it is just not good to realize wearing the pin joint to differ several millimeters when arm-tie and round pin axle butt joint. Therefore, in the prior art, the connection and the disassembly and assembly of the multi-section pull rope are difficult, and the disassembly and assembly efficiency is low.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a lantern ring joint, a pull rope assembly and engineering machinery.

In one aspect, the present invention provides a ferrule-based fitting comprising: a fixing portion and a connecting portion.

The connecting part is integrally formed on the fixing part and extends outwards from the fixing part. The fixing part can be used for sleeving a first steel rope in the pair of steel ropes. The connecting part can be connected to a collar of the second steel cable.

According to a ferrule-based fitting provided by the present invention, the connecting portion includes a first connecting portion and a second connecting portion. The first connecting portion and the second connecting portion are integrally formed at the end of the fixing portion. And the first connecting part and the second connecting part are symmetrically arranged along the central axis direction of the fixing part at intervals so that the lantern ring of the second steel rope can be installed between the first connecting part and the second connecting part.

According to the lantern ring joint provided by the invention, through holes capable of being matched with lantern rings of the second steel rope are symmetrically formed in the first connecting part and the second connecting part.

According to the lantern ring joint provided by the invention, the fixing part is provided with the lightening hole.

In another aspect, the present invention provides a pull cord assembly comprising a first steel cord, a second steel cord, a ferrule, a compression fitting and a ferrule fitting as described above.

One end of the first steel rope, which is butted with the second steel rope, is connected to the fixing part of the lantern ring joint in a surrounding mode and is fixed through the pressing joint. And one end of the second steel rope, which is butted with the first steel rope, is connected to the lantern ring in a surrounding way and is fixed through the pressing joint.

Wherein the connecting part of the lantern ring joint is connected with the lantern ring.

According to the pull rope assembly provided by the invention, the lantern ring on the second steel rope is provided with the connecting hole. And through holes matched with the connecting holes in the lantern ring on the second steel rope are symmetrically arranged on the first connecting part and the second connecting part.

According to the pull rope assembly provided by the invention, the loop on the second steel rope is arranged between the first connecting part and the second connecting part of the loop joint on the first steel rope.

According to the pull rope assembly provided by the invention, a fastener is arranged between the lantern ring on the second steel rope and the first connecting part and the second connecting part on the lantern ring joint on the first steel rope, so that the lantern ring on the second steel rope is connected with the first connecting part and the second connecting part on the lantern ring joint on the first steel rope.

According to the pull rope assembly provided by the invention, a positioning piece is further arranged between the lantern ring on the second steel rope and the first connecting part and the second connecting part on the lantern ring joint on the first steel rope. The positioning piece penetrates through the lantern ring on the second steel rope from the first connecting part and extends to the second connecting part.

In addition, the invention also provides a construction machine, and the construction machine comprises the pull rope assembly.

In the ferrule-based joint provided by the invention, the fixing part and the connecting part are of an integrally-formed structure. One end of the first steel rope is connected to the fixing part of the lantern ring joint, and one end of the second steel rope is connected to the lantern ring. And at the butt joint of the first steel rope and the second steel rope, a lantern ring on the second steel rope is connected to the connecting part on the lantern ring joint.

Through the structure, the connecting part and the fixing part on the lantern ring joint are of an integrally formed structure, so that the number of connecting pieces is reduced, and the cost is saved. Meanwhile, by using the lantern ring joint, the assembling time of the pull plate and the pin shaft for connecting the two sections of steel ropes can be reduced, the disassembling difficulty is greatly reduced, and the disassembling efficiency is effectively improved.

Further, in the rope pulling assembly provided by the invention, one end of the first steel rope, which is butted with the second steel rope, is connected to the fixing part of the toggle joint in a surrounding manner and is fixed through the pressing joint. And one end of the second steel rope, which is butted with the first steel rope, is connected to the lantern ring in a surrounding way and is fixed through the pressing joint. Wherein the connecting part of the lantern ring joint is connected with the lantern ring.

The pull cord assembly also has the advantages described above because it includes a toggle joint as described above.

Meanwhile, in the construction machine provided by the invention, because the construction machine comprises the pull rope assembly, the construction machine also has the advantages.

Drawings

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

FIG. 1 is a schematic structural view of a ferrule-based fitting provided by the present invention;

FIG. 2 is a first schematic view of the pull cord assembly provided by the present invention;

FIG. 3 is a second schematic structural view of a pull cord assembly provided by the present invention;

FIG. 4 is a schematic illustration of a construction machine according to the present disclosure;

FIG. 5 is an enlarged partial schematic view at A of FIG. 4;

reference numerals:

100: a ferrule-based fitting; 101: a first connection portion; 102: a second connecting portion;

103: a fixed part; 200: a first steel rope; 300: a second steel cord;

400: pressing the joint; 500: a collar; 600: lightening holes;

700: a through hole; 701: a fastener; 800: positioning holes;

801: a positioning member; 900: an engineering machine.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification to make the purpose, technical solution, and advantages of the embodiments of the present invention more clear, and the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are a part of embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A toggle joint, a pull-cord assembly and a construction machine according to an embodiment of the present invention will be described with reference to fig. 1 to 5. It should be understood that the following description is only exemplary embodiments of the present invention and does not constitute any particular limitation of the present invention.

In one aspect, embodiments of the present invention provide a ferrule-based fitting 100, as shown in fig. 1, the ferrule-based fitting 100 including: a fixing portion 103 and a connecting portion.

Wherein, the connecting part is integrally formed on the fixing part 103 and extends outwards from the fixing part 103, the fixing part 103 can be sleeved with the first steel rope 200 of the pair of steel ropes, and the connecting part can be connected on the lantern ring 500 of the second steel rope 300.

In the ferrule-based fitting 100, the fixing portion 103 and the connecting portion are integrally formed. One end of the first steel rope 200 is connected to the fixing portion 103 of the toggle joint 100, and one end of the second steel rope 300 is connected to the toggle 500. The ferrule 500 of the second steel cable 300 is coupled to the coupling portion of the ferrule-based fitting 100 at the point where the first steel cable 200 is butted against the second steel cable 300.

Through the structure, the connecting part and the fixing part 103 on the lantern ring joint 100 are of an integrally formed structure, so that the number of connecting parts is reduced, and the cost is saved. Meanwhile, by using the lantern ring joint 100, the assembling time of the pull plate and the pin shaft for connecting the two sections of steel ropes can be reduced, the assembling and disassembling difficulty is greatly reduced, and the assembling and disassembling efficiency is effectively improved.

In one embodiment of the present invention, the connection part includes a first connection part 101 and a second connection part 102. The first connecting portion 101 and the second connecting portion 102 are integrally formed at an end of the fixing portion 103. The first connecting portion 101 and the second connecting portion 102 are symmetrically arranged along the central axis direction of the fixing portion 103 at intervals so that the ferrule 500 of the second steel cord 300 can be mounted between the first connecting portion 101 and the second connecting portion 102.

Specifically, the ferrule-based fitting 100 includes a first connecting portion 101, a second connecting portion 102, and a fixing portion 103. The first connecting portion 101 and the second connecting portion 102 are integrally formed at an end of the fixing portion 103. The first connection portion 101 and the second connection portion 102 are provided symmetrically and at an interval along the central axis direction of the fixing portion 103. One end of the first steel cord 200 is connected to the fixing portion 103. One end of the second steel cord 300 is connected to the collar 500. At the butt joint of the first steel rope 200 and the second steel rope 300, the collar 500 of the second steel rope 300 is connected between the first connecting part 101 and the second connecting part 102.

For example, as shown in fig. 1 to 3, the ferrule-based fitting 100 includes a first connecting portion 101, a second connecting portion 102, and a fixing portion 103. The fixing portion 103 is located at the right end of the entire toggle joint 100, and the first connecting portion 101 and the second connecting portion 102 are integrally formed at the left end portion of the fixing portion 103. The first connecting portion 101 and the second connecting portion 102 have the same shape and size. The first connection portion 101 and the second connection portion 102 are provided symmetrically and at an interval along the central axis direction of the fixing portion 103.

The left end of the first steel cord 200 can be wound around the fixing portion 103 of the toggle joint 100. The right end of the second steel cord 300 can be wound around the collar 500. The left end of the first steel rope 200 is butted against the right end of the second steel rope 300. And, the collar 500 of the second steel cord 300 is installed between the first connection part 101 and the second connection part 102.

In one embodiment of the present invention, the first connecting portion 101 and the second connecting portion 102 are symmetrically provided with through holes 700 capable of being matched with the collars 500 of the second steel cord 300.

Further, the collar joint 100 includes a first connection part 101, a second connection part 102, and a fixing part 103. The first connecting portion 101 and the second connecting portion 102 are integrally formed at an end of the fixing portion 103. The first connection portion 101 and the second connection portion 102 are provided symmetrically and at an interval along the central axis direction of the fixing portion 103. One end of the first steel cord 200 is connected to the fixing portion 103. One end of the second steel cord 300 is connected to the collar 500. At the butt joint of the first steel rope 200 and the second steel rope 300, the collar 500 of the second steel rope 300 is connected between the first connecting part 101 and the second connecting part 102. Wherein, the collar 500 is provided with a connecting hole. Correspondingly, through holes 700 matching the connection holes on the collar 500 are provided on the first connection portion 101 and the second connection portion 102. In the toggle joint 100, when the connection of the pair of steel cords is performed, the fastener 701 can extend from the first connection portion 101 to the outside of the second connection portion 102 through the toggle 500. Alternatively, the fastener 701 can extend from the second connection portion 102 through the collar 500 to the outside of the first connection portion 101.

It should be noted here that the first and second connection portions of the above-mentioned "first connection portion" and "second connection portion" are only used to distinguish different connection portions, and do not limit the present invention in any way.

For example, as shown in fig. 1 to 3, the ferrule-based fitting 100 includes a first connecting portion 101, a second connecting portion 102, and a fixing portion 103. The fixing portion 103 is located at the right end of the entire toggle joint 100, and the first connecting portion 101 and the second connecting portion 102 are integrally formed at the left end portion of the fixing portion 103. The first connecting portion 101 and the second connecting portion 102 have the same shape and size. The first connection portion 101 and the second connection portion 102 are provided symmetrically and at an interval along the central axis direction of the fixing portion 103.

The left end of the first steel cord 200 can be wound around the fixing portion 103 of the toggle joint 100. The right end of the second steel cord 300 can be wound around the collar 500. A connecting hole is formed in the center of the collar 500, and through holes 700 matched with the connecting holes in the collar 500 are formed in the first connecting portion 101 and the second connecting portion 102. The left end of the first steel rope 200 is butted against the right end of the second steel rope 300. The fastener 701 can pass through the connection hole on the collar 500 and the through holes 700 on the first connection part 101 and the second connection part 102 to fixedly mount the collar 500 on the second steel rope 300 between the first connection part 101 and the second connection part 102 of the collar joint 100.

In one embodiment of the present invention, the fixing portion 103 is provided with lightening holes 600.

Specifically, for example, as shown in fig. 2, the ferrule-based fitting 100 includes a first connecting portion 101, a second connecting portion 102, and a fixing portion 103. The fixing portion 103 is located at the right end of the entire toggle joint 100, and the first connecting portion 101 and the second connecting portion 102 are integrally formed at the left end portion of the fixing portion 103. The fixing portion 103 is provided with a lightening hole 600. The first connecting portion 101 and the second connecting portion 102 have the same shape and size. The first connection portion 101 and the second connection portion 102 are provided symmetrically and at an interval along the central axis direction of the fixing portion 103.

The left end of the first steel cord 200 can be wound around the fixing portion 103 of the toggle joint 100. The right end of the second steel cord 300 can be wound around the collar 500. A connecting hole is formed in the center of the collar 500, and through holes 700 matched with the connecting holes in the collar 500 are formed in the first connecting portion 101 and the second connecting portion 102. The left end of the first steel rope 200 is butted against the right end of the second steel rope 300. The fastener 701 can pass through the connection hole on the collar 500 and the through holes 700 on the first connection part 101 and the second connection part 102 to fixedly mount the collar 500 on the second steel rope 300 between the first connection part 101 and the second connection part 102 of the collar joint 100.

It should be noted here that the shape of the lightening hole 600 is not limited in any way. As for the size of the lightening holes 600, the size of the lightening holes 600 should be as large as possible to ensure the lightest weight of the toggle joint 100, while satisfying the strength of the toggle joint 100.

As can be seen from the above-described embodiments, the weight-reduction holes 600 having appropriate sizes are provided in the fixing portion 103 of the ferrule-based joint 100, so that the weight of the ferrule-based joint 100 can be reduced while ensuring the strength of the ferrule-based joint 100. On the one hand, the material consumption of the toggle joint 100 can be reduced, and the manufacturing cost can be saved. On the other hand, the lantern ring joint 100 is light in weight, and can be conveniently butted and installed with adjacent steel ropes, so that the disassembling and assembling efficiency is greatly improved.

In another aspect, embodiments of the present invention also provide a draw cord assembly, comprising: a first steel cord 200, a second steel cord 300, a ferrule 500, a pressed joint 400 and a ferrule joint 100 as described above.

Wherein, one end of the first steel cable 200 abutting against the second steel cable 300 is connected around the fixing part 103 of the toggle joint 100 and fixed by the pressing joint 400. The end of the second steel cable 300 abutting the first steel cable 200 is looped around the collar 500 and fixed by the press fitting 400. The connection portion of the ferrule-based fitting 100 is connected to the ferrule 500.

As shown in fig. 2 and 3, the pulling rope assembly includes: a first steel cord 200, a second steel cord 300, a ferrule 500, a pressed joint 400 and a ferrule joint 100 as described above.

The ferrule-based joint 100 includes a first connecting portion 101, a second connecting portion 102, and a fixing portion 103. The fixing portion 103 is located at the right end of the entire toggle joint 100, and the first connecting portion 101 and the second connecting portion 102 are integrally formed at the left end portion of the fixing portion 103. The fixing portion 103 is provided with a lightening hole 600. The first connecting portion 101 and the second connecting portion 102 have the same shape and size. The first connection portion 101 and the second connection portion 102 are provided symmetrically and at an interval along the central axis direction of the fixing portion 103.

Wherein, the left end of the first steel cable 200 is wound and connected on the fixing part 103 of the toggle joint 100 and fixed by the pressing joint 400. The right end of the second steel cord 300 is wound around the collar 500 and fixed by the pressed joint 400. The left end of the first steel rope 200 is butted against the right end of the second steel rope 300. The ferrule 500 of the second steel cord 300 is coupled to the ferrule-based fitting 100 of the first steel cord 200.

It should be noted here that the material of the pressed joint 400 is not limited in any way. For example, the pressed joint 400 may be an aluminum alloy pressed joint.

It should also be noted here that the shape of the sleeve 500 on the second steel cord 300 may be a heart sleeve or other sleeve with a shape that can meet the requirement.

In one embodiment of the present invention, the collar 500 of the second steel cable 300 is provided with a connecting hole, and the first connecting part 101 and the second connecting part 102 are symmetrically provided with through holes 700 matching with the connecting hole of the collar 500 of the second steel cable 300.

For example, as shown in fig. 2 and 3, the pull cord assembly includes: a first steel cord 200, a second steel cord 300, a chicken heart ferrule, an aluminum alloy pressed joint and a ferrule joint 100 as described above.

The ferrule-based joint 100 includes a first connecting portion 101, a second connecting portion 102, and a fixing portion 103. The fixing portion 103 is located at the right end of the entire toggle joint 100, and the first connecting portion 101 and the second connecting portion 102 are integrally formed at the left end portion of the fixing portion 103. The fixing portion 103 is provided with a lightening hole 600. The first connecting portion 101 and the second connecting portion 102 have the same shape and size. The first connection portion 101 and the second connection portion 102 are provided symmetrically and at an interval along the central axis direction of the fixing portion 103.

Wherein, the left end of the first steel rope 200 is wound and connected on the fixing part 103 of the toggle joint 100 and fixed by an aluminum alloy pressed joint. The right end of the second steel rope 300 is wound and connected on the heart lantern ring and fixed through an aluminum alloy pressing joint.

The center of the heart lantern ring on the second steel rope 300 is provided with a connecting hole. The first connecting part 101 and the second connecting part 102 are provided with through holes 700 matched with the connecting holes on the heart-shaped lantern ring. The left end of the first steel rope 200 is butted against the right end of the second steel rope 300. The heart-shaped ferrule of the second steel rope 300 is fixedly mounted on the ferrule-based fitting 100.

In one embodiment of the present invention, the ferrule 500 on the second steel cord 300 is installed between the first connection part 101 and the second connection part 102 of the ferrule based nipple 100 on the first steel cord 200.

Specifically, the pulling rope assembly includes: a first steel cord 200, a second steel cord 300, a ferrule 500, a press fitting 400 and a ferrule fitting 100.

The ferrule-based joint 100 includes a first connecting portion 101, a second connecting portion 102, and a fixing portion 103. The first connecting portion 101 and the second connecting portion 102 are integrally formed at one end of the fixing portion 103. The fixing portion 103 is provided with a lightening hole 600.

Wherein one end of the first steel cord 200 is wound around and coupled to the fixing portion 103 of the toggle joint 100 and fixed by the press-fit joint 400. One end of the second steel cord 300 is wound around the collar 500 and fixed by the pressing tab 400.

The collar 500 of the second steel rope 300 is provided with a connection hole. Through holes 700 matched with the connecting holes on the collar 500 are formed on the first connecting part 101 and the second connecting part 102. The collar 500 is fixedly mounted between the first connection portion 101 and the second connection portion 102 of the collar joint 100.

Specifically, for example, as shown in fig. 2 and 3, the pull cord assembly includes: a first steel cord 200, a second steel cord 300, a chicken heart ferrule, an aluminum alloy pressed joint and a ferrule joint 100 as described above.

The ferrule-based joint 100 includes a first connecting portion 101, a second connecting portion 102, and a fixing portion 103. The fixing portion 103 is located at the right end of the entire toggle joint 100, and the first connecting portion 101 and the second connecting portion 102 are integrally formed at the left end portion of the fixing portion 103. The fixing portion 103 is provided with a lightening hole 600. The first connecting portion 101 and the second connecting portion 102 have the same shape and size. The first connection portion 101 and the second connection portion 102 are provided symmetrically and at an interval along the central axis direction of the fixing portion 103.

Wherein, the left end of the first steel rope 200 is wound and connected on the fixing part 103 of the toggle joint 100 and fixed by an aluminum alloy pressed joint. The right end of the second steel rope 300 is wound and connected on the heart lantern ring and fixed through an aluminum alloy pressing joint.

The center of the heart lantern ring on the second steel rope 300 is provided with a connecting hole. The first connecting part 101 and the second connecting part 102 are provided with through holes 700 matched with the connecting holes on the heart-shaped lantern ring. The left end of the first steel rope 200 is butted against the right end of the second steel rope 300. The heart-shaped ferrule of the second steel cable 300 is fixedly mounted between the first connecting part 101 and the second connecting part 102 of the ferrule-based joint 100.

In one embodiment of the present invention, a fastener 701 is installed between the ferrule 500 on the second steel rope 300 and the first and second connection parts 101 and 102 on the ferrule-based nipple 100 on the first steel rope 200 to connect the ferrule 500 on the second steel rope 300 with the first and second connection parts 101 and 102 on the ferrule-based nipple 100 on the first steel rope 200.

As shown in fig. 2 and 3, the pulling rope assembly includes: a first steel cord 200, a second steel cord 300, a chicken heart ferrule, an aluminum alloy pressed joint and a ferrule joint 100 as described above.

The ferrule-based joint 100 includes a first connecting portion 101, a second connecting portion 102, and a fixing portion 103. The fixing portion 103 is located at the right end of the entire toggle joint 100, and the first connecting portion 101 and the second connecting portion 102 are integrally formed at the left end portion of the fixing portion 103. The fixing portion 103 is provided with a lightening hole 600. The first connecting portion 101 and the second connecting portion 102 have the same shape and size. The first connection portion 101 and the second connection portion 102 are provided symmetrically and at an interval along the central axis direction of the fixing portion 103.

Wherein, the left end of the first steel rope 200 is wound and connected on the fixing part 103 of the toggle joint 100 and fixed by an aluminum alloy pressed joint. The right end of the second steel rope 300 is wound and connected on the heart lantern ring and fixed through an aluminum alloy pressing joint.

The center of the heart lantern ring on the second steel rope 300 is provided with a connecting hole. The first connecting part 101 and the second connecting part 102 are provided with through holes 700 matched with the connecting holes on the heart-shaped lantern ring. The left end of the first steel rope 200 is butted against the right end of the second steel rope 300. The fastener 701 passes through the connecting hole of the heart-shaped ring from the through hole 700 of the second connecting part 102 and extends to the through hole 700 of the first connecting part 101 to connect the heart-shaped ring of the second steel rope 300 with the first connecting part 101 and the second connecting part 102 of the toggle joint 100 of the first steel rope 200.

It should be noted here that the present invention is not limited in any way as to the specific type of fastener 701. For example, the fastener 701 may be a screw and nut assembly.

In one embodiment of the present invention, a positioning member 801 is further installed between the ferrule 500 of the second steel rope 300 and the first and second connection portions 101 and 102 of the ferrule-type joint 100 of the first steel rope 200. The positioning member 801 extends from the first connecting portion 101 to the second connecting portion 102 through the loop 500 of the second steel cord 300.

Specifically, the pull cord assembly includes: a first steel cord 200, a second steel cord 300, a ferrule 500, a press fitting 400 and a ferrule fitting 100.

The ferrule-based joint 100 includes a first connecting portion 101, a second connecting portion 102, and a fixing portion 103. The first connecting portion 101 and the second connecting portion 102 are integrally formed at one end of the fixing portion 103. The fixing portion 103 is provided with a lightening hole 600.

Wherein, one end of the first steel cable 200 is wound and connected on the fixing part 103 of the toggle joint 100 and fixed by the press-fit joint 400. One end of the second steel cord 300 is wound around the collar 500 and fixed by the pressing tab 400.

The collar 500 of the second steel rope 300 is provided with a connection hole. Through holes 700 matched with the connecting holes on the collar 500 are formed on the first connecting part 101 and the second connecting part 102. The collar 500 is fixedly installed between the first connection part 101 and the second connection part 102 of the collar joint 100 through the connection hole, the through hole 700, and the fastener 701.

In addition, a positioning member 801 is installed between the ferrule 500 of the second steel rope 300 and the first and second connection portions 101 and 102 of the ferrule-type joint 100 of the first steel rope 200. And, the positioning member 801 passes through the loop 500 of the second steel rope 300 from the first connection portion 101 and extends to the second connection portion 102.

Specifically, for example, as shown in fig. 2 and 3, the pull cord assembly includes: a first steel cord 200, a second steel cord 300, a chicken heart ferrule, an aluminum alloy pressed joint and a ferrule joint 100 as described above.

The ferrule-based joint 100 includes a first connecting portion 101, a second connecting portion 102, and a fixing portion 103. The fixing portion 103 is located at the right end of the entire toggle joint 100, and the first connecting portion 101 and the second connecting portion 102 are integrally formed at the left end portion of the fixing portion 103. The fixing portion 103 is provided with a lightening hole 600. The first connecting portion 101 and the second connecting portion 102 have the same shape and size. The first connection portion 101 and the second connection portion 102 are provided symmetrically and at an interval along the central axis direction of the fixing portion 103.

Wherein, the left end of the first steel rope 200 is wound and connected on the fixing part 103 of the toggle joint 100 and fixed by an aluminum alloy pressed joint. The right end of the second steel rope 300 is wound and connected on the heart lantern ring and fixed through an aluminum alloy pressing joint.

The center of the heart lantern ring on the second steel rope 300 is provided with a connecting hole. The first connecting part 101 and the second connecting part 102 are provided with through holes 700 matched with the connecting holes on the heart-shaped lantern ring. The left end of the first steel rope 200 is butted against the right end of the second steel rope 300. The fastener 701 passes through the connecting hole of the heart-shaped ring from the through hole 700 of the second connecting part 102 and extends to the through hole 700 of the first connecting part 101 to connect the heart-shaped ring of the second steel rope 300 with the first connecting part 101 and the second connecting part 102 of the toggle joint 100 of the first steel rope 200.

In addition, a positioning hole is formed at the right side of the coupling hole in the collar 500 of the second steel rope 300. Accordingly, the ferrule-based joint 100 of the first steel cable 200 is symmetrically provided with positioning holes 800 matching with the positioning holes of the ferrule 500 at the right side of the through holes 700 of the first connecting portion 101 and the second connecting portion 102. The positioning element 801 extends from the positioning hole 800 of the first connecting portion 101 to the positioning hole 800 of the second connecting portion 102 through the positioning hole of the collar 500 of the second steel cable 300. The freedom degree of the pull rope assembly is limited, and the pull rope assembly is convenient to disassemble, assemble and use.

It should be noted here that the positioning member 801 includes, but is not limited to, a lock pin. For example, the diameter of the locating hole 800 may be 18mm, and correspondingly, the diameter of the locking pin is 16 mm.

It should also be noted here that the wall thickness of the through-hole 700 on the first connection portion 101 and the second connection portion 102 is at least 30 mm. The wall thickness of the pilot hole 800 is at least 20 mm.

In addition, as shown in fig. 4 and 5, the embodiment of the invention also provides a working machine, and the working machine comprises the pull rope assembly.

Further, since the construction machine 900 includes the pull rope assembly as described above, it also has the advantages as described above.

For example, the work machine 900 may be a crane.

It should be noted herein that the above-mentioned working machine 900 includes, but is not limited to, a crane.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.