Attachment plate outer chain link structure, lifting chain and agricultural machine

Abstract

The utility model relates to the technical field of chains, in particular to an attached plate outer chain link structure, a lifting chain and agricultural machinery. The attachment plate outer chain link structure comprises a connecting attachment plate, a supporting plate, a rubber plate and a connecting piece. The connecting attachment plate is provided with a first connecting hole, the supporting plate is provided with a second connecting hole, and the rubber plate is provided with a third connecting hole. The connecting piece is detachably connected with the connecting attachment plate, the supporting plate and the rubber plate, and the two ends of the connecting piece are pressed on the side, away from the supporting plate, of the connecting attachment plate and the side, away from the supporting plate, of the rubber plate correspondingly. A plurality of protrusions pressed into the rubber plate are arranged at the end, pressed on the rubber plate, of the connecting piece in the direction towards the rubber plate. The attached plate outer chain link structure is applied to a lifting chain of agricultural machinery, the damaged rubber plate can be conveniently replaced, the attached plate outer chain link structure can be tightly connected with the rubber plate, the connection stability of the rubber plate is improved, and the situation that in the operation process, due to connection failure, a connecting piece or the rubber plate falls off is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of chains, in particular to an attached plate outer chain link structure, a lifting chain and an agricultural machine. Background Art

[0002] At present, there are two types of connection between the rubber plate and the chain in the agricultural grain lifting chain: the rivet connection structure and the bolt and nut connection structure. Although the rivet connection structure has better firmness, it has the disadvantage that the rubber plate is not easy to replace after being damaged. Although the bolt and nut connection structure with the rubber plate solves the problem of easy replacement of the rubber plate after being damaged, it also has the problem of poor connection firmness and the bolts are easy to fall off during the operation of the chain. Utility Model Content

[0003] The purpose of the utility model is to provide an attached plate outer link structure, a lifting chain and an agricultural machinery, which have a simple structure and are easy to install. They can not only facilitate the replacement of damaged rubber plates, but also can be tightly connected to the rubber plates to improve the connection stability of the rubber plates, thereby avoiding relative movement or relative rotation between the connecting piece and the rubber plates during use, thereby improving the connection firmness and avoiding the connection The situation of the connecting piece or the rubber plate falling off due to connection failure during operation.

[0004] The embodiment of the utility model is achieved as follows:

[0005] In a first aspect, the utility model provides an attachment plate outer link structure, the attachment plate outer link structure comprises a connecting attachment plate, a support plate, a rubber plate and a connecting piece;

[0006] The connecting piece is detachably connected to the connecting attachment plate, the supporting plate and the rubber plate, and two ends of the connecting piece are respectively pressed on a side of the connecting attachment plate away from the supporting plate and a side of the rubber plate away from the supporting plate;

[0007] Among them, one end of the connecting piece pressed on the rubber plate is provided with a plurality of protrusions pressed into the rubber plate in the direction toward the rubber plate.

[0008] In an optional embodiment, the connecting member includes a connecting bolt and a connecting nut;

[0009] The connecting plate is provided with a first connecting hole, the supporting plate is provided with a second connecting hole, and the rubber plate is provided with a third connecting hole; the connecting bolts are matched with the first connecting hole, the second connecting hole and the third connecting hole in sequence;

[0010] The connecting nut is threadedly connected to the screw rod of the connecting bolt, and the head of the connecting bolt and the connecting nut are respectively pressed on the side of the connecting attachment plate away from the supporting plate and the side of the rubber plate away from the supporting plate;

[0011] Wherein, the head of the connecting bolt is provided with a plurality of protrusions around the axial direction of the connecting bolt.

[0012] In an alternative embodiment, the protrusion comprises a spike extending in the direction of the rubber sheet.

[0013] In an optional embodiment, a side of the head of the connecting bolt facing the rubber plate is an arc-shaped surface, and the plurality of protrusions are all arranged on the arc-shaped surface.

[0014] In an optional embodiment, the second connection hole is a strip-shaped hole arranged along its width direction.

[0015] In an optional embodiment, the rubber sheet includes a colloid layer and at least three fabric core layers arranged in the colloid layer.

[0016] In an optional embodiment, the connecting attachment plate includes an attachment plate pin shaft, a first outer attachment plate and a second outer attachment plate, and the first outer attachment plate and the second outer attachment plate are arranged at intervals and connected to both ends of the attachment plate pin shaft;

[0017] The first outer attached plate and the second outer attached plate are both provided with a connecting portion extending toward the outside, and the first connecting hole is opened in the connecting portion.

[0018] In a second aspect, the utility model provides a lifting chain, the lifting chain comprising a main chain body and at least one of the above-mentioned attached plate outer link structures;

[0019] The main chain body includes a plurality of outer chain links and a plurality of inner chain links. The outer chain links are connected to the inner chain links. The attached plate outer chain link structure is connected to the inner chain links. There is at least one inner chain link between adjacent outer chain links and attached plate outer chain link structures.

[0020] In an optional embodiment, the lifting chain further comprises a connecting link, the connecting link comprising a connecting outer link plate, a connecting link plate, two threaded connecting pins and two locking nuts;

[0021] The connecting outer link plate and the connecting chain plate are arranged in parallel and at intervals, and two threaded connecting pins are connected to the connecting outer link plate and the connecting chain plate, and two locking nuts are respectively threadedly connected to the two threaded connecting pins;

[0022] Wherein, two threaded connection pins are passed through the sleeves of the inner chain links at the two free ends of the main chain body.

[0023] In a third aspect, the utility model provides an agricultural machine, which includes the above-mentioned lifting chain.

[0024] The beneficial effects of the embodiments of the utility model include:

[0025] The outer link structure of the attachment plate includes a connecting attachment plate, a support plate, a rubber plate and a connecting piece; the connecting piece is detachably connected to the connecting attachment plate, the support plate and the rubber plate, and the two ends of the connecting piece are respectively pressed on the side of the connecting attachment plate away from the support plate and the side of the rubber plate away from the support plate; wherein, one end of the connecting piece pressed on the rubber plate is provided with a plurality of protrusions pressed into the rubber plate in the direction toward the rubber plate.

[0026] The attached plate outer link structure is applied to the lifting chain of agricultural machinery. It has a simple structure and is easy to install. It can not only facilitate the replacement of damaged rubber plates, but also be tightly connected to the rubber plates to improve the connection stability of the rubber plates, thereby avoiding relative movement or rotation between the connector and the rubber plates during use, thereby improving the connection firmness and avoiding the connector or rubber plates from falling off due to connection failure during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 This is an exploded schematic diagram of the outer chain link structure of the attached plate in the embodiment of the utility model;

[0029] Figure 2 This is a structural schematic diagram of the outer chain link structure of the attached plate in the embodiment of the utility model;

[0030] Figure 3 It is a cross-sectional view of the outer link structure of the attached plate in the embodiment of the utility model;

[0031] Figure 4 This is a structural schematic diagram of a lifting chain from a first perspective in an embodiment of the utility model;

[0032] Figure 5 It is a schematic diagram of the connection between the outer chain link structure and the inner chain link of the attached plate in the embodiment of the utility model;

[0033] Figure 6 for Figure 3 The local schematic diagram of the A in the middle;

[0034] Figure 7 This is a schematic diagram of the structure of the connecting bolts in the embodiment of the utility model;

[0035] Figure 8 This is a schematic diagram of the structure of the connecting attachment plate in the embodiment of the utility model;

[0036] Fig. 9 This is a schematic diagram of the structure of the support plate in the embodiment of the utility model;

[0037] Fig.10 This is a schematic diagram of the structure of the rubber plate in the embodiment of the utility model;

[0038] Fig.11 It is a structural schematic diagram of the lifting chain from a second viewing angle in an embodiment of the utility model;

[0039] Fig.12 It is a schematic diagram of the structure of the connecting link in the embodiment of the utility model.

[0040] Icons: 100-attachment plate outer link structure; 110-connecting attachment plate; 120-support plate; 130-rubber plate; 140-connecting piece; 141-protrusion; 142-connecting bolt; 143-connecting nut; 111-first connecting hole; 121-second connecting hole; 131-third connecting hole; 144-arc surface; 112-attachment plate pin; 113-first outer attachment plate; 114-second outer attachment plate; 115-connecting part; 200-lifting chain; 210-main chain body; 220-outer link; 230-inner link; 240-connecting link; 241-connecting outer chain plate; 242-connecting chain plate; 243-threaded connecting pin; 244-locking nut. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0044] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0045] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0046] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] Please refer to Figure 1-Figure 3 , this embodiment provides an attachment plate outer link structure 100, the attachment plate outer link structure 100 includes a connecting attachment plate 110, a support plate 120, a rubber plate 130 and a connecting member 140;

[0048] The connecting member 140 is detachably connected to the connecting attachment plate 110, the supporting plate 120 and the rubber plate 130, and two ends of the connecting member 140 are respectively pressed on a side of the connecting attachment plate 110 away from the supporting plate 120 and a side of the rubber plate 130 away from the supporting plate 120;

[0049] One end of the connecting member 140 pressed against the rubber plate 130 is provided with a plurality of protrusions 141 pressed into the rubber plate 130 in a direction facing the rubber plate 130 .

[0050] Please refer to Figure 1-Figure 5 The working principle of the attached plate outer link structure 100 is:

[0051] The attached plate outer link structure 100 is applied to a lifting chain 200 of an agricultural machine, and can play a role of lifting materials through the setting of its rubber plate 130 during use; specifically, the attached plate outer link structure 100 includes a connecting attached plate 110, a support plate 120, a rubber plate 130 and a connecting member 140;

[0052] The connecting plate 110 is used to connect with the inner link 230 of the lifting chain 200, and the connecting member 140 is detachably connected with the connecting plate 110, the supporting plate 120 and the rubber plate 130, and the two ends of the connecting member 140 are respectively pressed on the side of the connecting plate 110 away from the supporting plate 120 and the side of the rubber plate 130 away from the supporting plate 120;

[0053] Thus, the connecting member 140 can be detachably connected to the connecting attachment plate 110, the support plate 120 and the rubber plate 130, thereby realizing the rapid disassembly and assembly of the connecting member 140 connecting the connecting attachment plate 110, the support plate 120 and the rubber plate 130, thereby facilitating their maintenance and quickly replacing the damaged rubber plate 130; in addition, the two ends of the connecting member 140 are respectively pressed on the side of the connecting attachment plate 110 away from the support plate 120 and the side of the rubber plate 130 away from the support plate 120, and on this basis, one end of the connecting member 140 pressed on the rubber plate 130 is provided with a plurality of protrusions pressed into the rubber plate 130 in the direction toward the rubber plate 130 141, in this way, the multiple protrusions 141 on the connecting member 140 can be pressed into the rubber plate 130 with the pressing force applied by the connecting member 140, so as to limit the relative movement or relative rotation between the connecting member 140 and the rubber plate 130, so that the connecting member 140 and the rubber plate 130 can be tightly connected, thereby improving the installation stability of the rubber plate 130 and the connecting member 140, so as to avoid the movement of the rubber plate 130 or the falling off of the rubber plate 130 and the connecting member 140 during the use of the lifting chain 200 using the attached plate outer link structure 100;

[0054] In summary, the attached plate outer link structure 100 is applied to the lifting chain 200 of agricultural machinery. It has a simple structure and is easy to install. It can not only facilitate the replacement of the damaged rubber plate 130, but also be tightly connected to the rubber plate 130 to improve the connection stability of the rubber plate 130, thereby avoiding relative movement or relative rotation between the connecting piece 140 and the rubber plate 130 during use, thereby improving the connection firmness and avoiding the connection failure during operation that causes the connecting piece 140 or the rubber plate 130 to fall off.

[0055] For further information, please refer to Figure 1-Figure 10In this embodiment, when configuring the connecting member 140, the connecting member 140 includes a connecting bolt 142 and a connecting nut 143;

[0056] In correspondence thereto, the connecting plate 110 is provided with a first connecting hole 111, the supporting plate 120 is provided with a second connecting hole 121, and the rubber plate 130 is provided with a third connecting hole 131; the connecting bolt 142 is matched with the first connecting hole 111, the second connecting hole 121 and the third connecting hole 131 in sequence; and after the screw portion of the connecting bolt 142 passes through the first connecting hole 111, the second connecting hole 121 and the third connecting hole 131, the screw portion of the connecting nut 143 is threadedly connected with the screw portion of the connecting bolt 142, and through the screwing of the connecting nut 143, the head of the connecting bolt 142 and the connecting nut 143 are respectively pressed on the side of the connecting plate 110 away from the supporting plate 120 and the side of the rubber plate 130 away from the supporting plate 120;

[0057] In addition, a plurality of protrusions 141 are provided on the head of the connecting bolt 142 around the axial direction of the connecting bolt 142. Based on this, in the process of screwing the connecting nut 143, the connecting nut 143 rotates relative to the connecting bolt 142, that is, the connecting bolt 142 does not rotate, but moves along its axial direction, so that the plurality of protrusions 141 on the head of the connecting bolt 142 are pressed into the rubber sheet 130 under the action of the locking force in the process of the connecting bolt 142 moving toward the rubber sheet 130 along its axial direction. By pressing the plurality of protrusions 141 into the rubber sheet 130, a force is formed to limit the relative movement and relative rotation between the connecting bolt 142 and the rubber sheet 130, thereby improving the connection stability of the connecting member 140 and the rubber sheet 130.

[0058] For further information, please refer to Figure 1-Figure 10 As can be seen from the above content, in this embodiment, the protrusion 141 is pressed into the rubber plate 130 under the action of the locking force. Based on this, in order to reduce the resistance when the protrusion 141 is pressed into the rubber plate 130, the protrusion 141 includes a spike extending toward the rubber plate 130. In this way, the protrusion 141 can be quickly pressed into the rubber plate 130 to improve the efficiency and stability of the connection.

[0059] In addition, the side of the head of the connecting bolt 142 facing the rubber plate 130 is an arcuate surface 144, and multiple protrusions 141 are all arranged on the arcuate surface 144. Such an arrangement can enable the arcuate surface 144 of the head of the connecting bolt 142 to be pressed into the rubber plate 130 under the action of the locking force after the head of the connecting bolt 142 is tightly pressed against the rubber plate 130, thereby making the surface of the rubber plate 130 a flat plane, thereby improving the quality of the lifted material and avoiding scratching the material due to the head of the connecting bolt 142 protruding from the rubber plate 130 during the lifting process.

[0060] It should be noted that in the present embodiment, when configuring the above-mentioned first connection hole 111, the second connection hole 121 and the third connection hole 131, a method of configuring two first connection holes 111, two second connection holes 121 and two third connection holes 131 along the width direction is adopted, and correspondingly, two connecting parts 140 are provided to improve the stability of the connection in this way.

[0061] For further information, please refer to Figure 1-Figure 10 In this embodiment, in order to improve the stability of the connection and reduce the difficulty of the connection during the connection process, the second connection hole 121 is a strip hole arranged along its width direction. The purpose is to adjust the position of the connection bolt 142 in the width direction by sliding the screw portion of the connection bolt 142 in the strip hole, so that the connection bolt 142 can be quickly connected to the connecting attachment plate 110, the support plate 120 and the rubber plate 130, and facilitate the adjustment of the horizontal spacing size of the rubber plate 130 when assembling.

[0062] As can be seen from the above, during the assembly of the attached plate outer link structure 100, the protrusion 141 on the connecting member 140 will be pressed into the rubber plate 130. Therefore, the rubber plate 130 includes a colloid layer and at least three fabric core layers arranged in the colloid layer. Such a configuration is intended to make the number of fabric core layers in the rubber plate 130 three, thereby making the longitudinal full-thickness minimum tensile strength of the rubber plate 130 reach 400N / mm, so as to improve the strength and wear resistance of the rubber plate 130 while enabling it to maintain the integrity of the structure after the protrusion 141 is pressed in, and avoid damage caused by the protrusion 141 being pressed in.

[0063] For further information, please refer to Figure 1-Figure 10In this embodiment, when configuring the connecting attachment plate 110, the connecting attachment plate 110 includes an attachment plate pin 112, a first outer attachment plate 113 and a second outer attachment plate 114. The first outer attachment plate 113 and the second outer attachment plate 114 are arranged at intervals and connected to both ends of the attachment plate pin 112; the first outer attachment plate 113 and the second outer attachment plate 114 are both provided with a connecting portion 115 extending outward, and the first connecting hole 111 is opened in the connecting portion 115. That is, through such a setting, the parts of the first outer attachment plate 113 and the second outer attachment plate 114 used for connecting with the support plate 120 can be arranged outward, thereby improving the connection stability thereof.

[0064] Based on the above, please refer to Figure 1-Figure 12 The utility model further provides a lifting chain 200, the lifting chain 200 includes a main chain body 210 and at least one of the above-mentioned attached plate outer link structures 100;

[0065] Specifically, the main chain body 210 includes a plurality of outer links 220 and a plurality of inner links 230 , the outer links 220 are connected to the inner links 230 , the attached plate outer link structure 100 is connected to the inner links 230 , and there is at least one inner link 230 between adjacent outer links 220 and attached plate outer link structure 100 .

[0066] It should be noted that the structure of the outer link 220 and the inner link 230 can adopt the existing technology, and when the outer link 220, the inner link 230 and the attached plate outer link structure 100 are combined, a staggered arrangement is adopted, that is, the outer link 220, the inner link 230 and the attached plate outer link 220 can be arranged in this order and connected end to end to form a complete ring-shaped chain structure.

[0067] By adopting the above-mentioned attached plate outer link structure 100, the lifting chain 200 can facilitate the replacement of damaged rubber plates 130, and can also be tightly connected to the rubber plates 130 to improve the connection stability of the rubber plates 130, thereby avoiding relative movement or rotation between the connecting piece 140 and the rubber plates 130 during use, thereby improving the connection firmness and avoiding the connection piece 140 or the rubber plates 130 from falling off due to connection failure during operation.

[0068] In addition, please refer to Figure 1-Figure 12 On the basis of the above structure, the lifting chain 200 may further include a connecting link 240, the connecting link 240 includes a connecting outer link plate 241, a connecting link plate 242, two threaded connecting pins 243 and two locking nuts 244;

[0069] The connecting outer link plate 241 and the connecting link plate 242 are arranged in parallel and spaced apart, and two threaded connecting pins 243 are connected to the connecting outer link plate 241 and the connecting link plate 242, and two locking nuts 244 are threadedly connected to the two threaded connecting pins 243 respectively;

[0070] The two threaded connection pins 243 are inserted through the sleeves of the inner chain links 230 at the two free ends of the main chain body 210 .

[0071] That is, the lifting chain 200 adopts a method of connecting the two free ends of the main chain body 210 with the connecting link 240. Compared with the connection structure of the cotter pin or the locking pin, this method not only improves the reliability of the lifting chain 200, but also has the characteristics of faster and more convenient disassembly and assembly.

[0072] Based on the above lifting chain 200, please refer to Figure 1-Figure 12 This embodiment also provides an agricultural machine, and the agricultural machine includes the above-mentioned lifting chain 200.

[0073] By adopting the above-mentioned lifting chain 200, the agricultural machinery can facilitate the replacement of damaged rubber plates 130, and can also be tightly connected to the rubber plates 130 to improve the connection stability of the rubber plates 130, thereby avoiding relative movement or relative rotation between the connecting piece 140 and the rubber plates 130 during use, thereby improving the connection firmness and avoiding the connection piece 140 or the rubber plates 130 from falling off due to connection failure during operation.

[0074] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An outer link structure with an attached plate, characterized in that: The attached plate outer link structure comprises an attached plate, a support plate, a rubber plate and a connecting piece; The connecting member is detachably connected to the connecting attachment plate, the supporting plate and the rubber plate, and two ends of the connecting member are respectively pressed on a side of the connecting attachment plate away from the supporting plate and a side of the rubber plate away from the supporting plate; Wherein, one end of the connecting member pressed on the rubber plate is provided with a plurality of protrusions pressed into the rubber plate in a direction toward the rubber plate.

2. The plate-attached outer link structure according to claim 1, characterized in that: The connecting piece includes a connecting bolt and a connecting nut; The connecting attachment plate is provided with a first connecting hole, the supporting plate is provided with a second connecting hole, and the rubber plate is provided with a third connecting hole; the connecting bolt is matched with the first connecting hole, the second connecting hole and the third connecting hole in sequence; The connecting nut is threadedly connected to the screw rod of the connecting bolt, and the head of the connecting bolt and the connecting nut are respectively pressed on a side of the connecting attachment plate away from the supporting plate and a side of the rubber plate away from the supporting plate; Wherein, a plurality of protrusions are arranged on the head of the connecting bolt around the axial direction of the connecting bolt.

3. The plate-attached outer link structure according to claim 2, characterized in that: The protrusion includes a spike extending toward the rubber sheet.

4. The plate-attached outer link structure according to claim 3, characterized in that: The side of the head of the connecting bolt facing the rubber plate is an arc-shaped surface, and the plurality of protrusions are all arranged on the arc-shaped surface.

5. The plate-attached outer link structure according to claim 2, characterized in that: The second connection hole is a strip-shaped hole arranged along its width direction.

6. The plate-attached outer link structure according to claim 1, characterized in that: The rubber sheet comprises a colloid layer and at least three fabric core layers arranged in the colloid layer.

7. The plate-attached outer link structure according to claim 2, characterized in that: The connecting attachment plate comprises an attachment plate pin shaft, a first outer attachment plate and a second outer attachment plate, wherein the first outer attachment plate and the second outer attachment plate are arranged at intervals and connected to both ends of the attachment plate pin shaft; The first outer attached plate and the second outer attached plate are both provided with a connecting portion extending toward the outside, and the first connecting hole is opened in the connecting portion.

8. A lifting chain, characterized in that: The lifting chain comprises a main chain body and at least one attached plate outer link structure as claimed in any one of claims 1 to 7; The main chain body includes a plurality of outer chain links and a plurality of inner chain links, the outer chain links are connected to the inner chain links, the attached plate outer chain link structure is connected to the inner chain links, and there is at least one inner chain link between adjacent outer chain links and attached plate outer chain link structures.

9. The lifting chain according to claim 8, characterized in that: The lifting chain also includes a connecting link, which includes a connecting outer link plate, a connecting link plate, two threaded connecting pins and two locking nuts; The connecting outer link plate is arranged parallel to and spaced from the connecting chain plate, and the two threaded connecting pins are connected to the connecting outer link plate and the connecting chain plate, and the two locking nuts are respectively threadedly connected to the two threaded connecting pins; Wherein, the two threaded connection pins are passed through the sleeves of the inner chain links at the two free ends of the main chain body.

10. An agricultural machine, characterized in that: The agricultural machine comprises a lifting chain as claimed in claim 8 or 9.

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