CN221069651U - Chain piece with buckle, conveying belt and conveying device - Google Patents

Abstract

The utility model relates to a chain piece with a buckle, a conveying belt and a conveying device, wherein the chain piece with the buckle comprises a connecting piece and a buckle piece, and the connecting piece comprises a first connecting plate, a second connecting plate and a third connecting plate; one end of the third connecting plate is connected with one end of the first connecting plate, and the other end of the third connecting plate is connected with one end of the second connecting plate; the first connecting plate, the second connecting plate, the third connecting plate form the opening, the internal surface interval that the opening kept away from third connecting plate one end is L, and the surface interval that the opening is close to third connecting plate one end is S, and L > S, fastener are connected with first connecting plate, all are equipped with first trompil and the second trompil of arranging along being on a parallel with open-ended orientation on first connecting plate and the second connecting plate. According to the utility model, the connecting piece and the buckling piece which are integrally designed are adopted to replace the traditional buckling piece and the traditional chain piece, so that the damage frequency of the conveyer belt is reduced; during maintenance, the buckle and the chain piece are integrally replaced, so that subsequent maintenance is facilitated, maintenance time is shortened, and working efficiency is improved.

Description

Chain piece with buckle, conveying belt and conveying device

Technical Field

The utility model relates to the technical field of food conveying, in particular to a chain piece with a buckle, a conveying belt and a conveying device.

Background

At present, in the food machinery of spiral line transmission, especially the conveyer belt of spiral line transmission on the food machinery that is used for cooling, proofing, conveying, disinfection etc. mainly divide into several kinds such as low tensioning, side drive, direct drive, self heap etc. according to its structure and transmission type.

The side driving screw is a device which adopts toothed conveyer belts on two side edges, a driving system directly drives the outer edges of the conveyer belts to enable the conveyer belts to carry out spiral line transmission, has no low-tension and direct-driving rotating cage and no self-stacking complex transmission track, is generally arranged into a single-tower structure, can also be arranged into a runway structure, can be provided with one or more conveyer belts to realize one inlet and one outlet or more inlets and more outlets, can also realize multiple inlet and outlet modes such as low inlet and low outlet, low inlet and high outlet, high inlet and low outlet and the like, can be randomly arranged in the inlet and outlet direction, and is fully suitable for the arrangement requirements of customer sites and production lines, and can be flexibly and conveniently connected with the production lines.

The stainless steel chain piece and the nonmetallic material buckle are respectively installed on the outer side of the existing side-drive conveying belt, the buckle on the outer side of the conveying belt is easy to damage in the daily use process, and is difficult to replace after damage, the chain piece and the buckle are abnormally worn due to actual installation errors, the operation stability of equipment is affected, and the buckle of the side-drive conveying belt is damaged, so that the equipment is possibly stopped, and the food sanitation safety is affected.

Therefore, there is a need for a buckle-carrying chain piece, a conveyor belt and a conveyor device which are designed integrally with the buckle and the chain piece, avoid abnormal wear between the buckle and the chain piece, facilitate subsequent maintenance and improve working stability.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a chain piece with a buckle, a conveying belt and a conveying device.

The technical scheme of the utility model is as follows:

The buckle-carrying chain piece comprises a connecting piece and a buckle piece, wherein the connecting piece comprises a first connecting plate, a second connecting plate and a third connecting plate; one end of the third connecting plate is connected with one end of the first connecting plate, and the other end of the third connecting plate is connected with one end of the second connecting plate; the first connecting plate, the second connecting plate and the third connecting plate form an opening, the distance between the inner surfaces of one end of the opening and the third connecting plate is L, the distance between the outer surfaces of one end of the opening and the third connecting plate is S, L is greater than S, the clamping piece is connected with the first connecting plate, the first connecting plate and the second connecting plate are respectively provided with a first opening and a second opening which are arranged along a direction parallel to the direction of the opening, the positions of the two first openings correspond, the positions of the two second openings correspond, and the first openings and/or the second openings are waist holes.

As a further development of the utility model, the first and/or second connection plate comprises a blocking position, which is arranged between the first and the second opening and which limits the access of the other connection piece into the area of the first opening.

As a further improvement of the utility model, the first connecting plate and the second connecting plate are the same in structure and comprise a first connecting part and a second connecting part, the first connecting part is connected with the third connecting plate, the blocking position is formed at the junction of the first connecting part and the second connecting part, the first opening is arranged on the first connecting part, and the second opening is arranged on the second connecting part.

As a further improvement of the present utility model, the clip member is connected to the second connecting portion.

As a further improvement of the utility model, the fastener comprises a first fastener part, a second fastener part and a third fastener part; one end of the second buckling part is connected with the first buckling part, and the other end of the second buckling part is connected with the third buckling part; the first clamping part, the second clamping part and the third clamping part enclose into a U-shaped clamping groove, and the first clamping part is connected with the lower end of the first connecting plate.

As a further improvement of the utility model, the clamping groove faces to one side of the first connecting plate away from the opening.

As a further improvement of the utility model, the snap-in chain piece further comprises a fixing element, which is arranged on the side of the second connecting plate remote from the opening and covers the second opening.

As a further improvement of the utility model, the fixing piece comprises a first fixing plate, a second fixing plate and a third fixing plate, wherein the first fixing plate is connected with the second connecting plate; one end of the second fixing plate is connected with the first fixing plate, and the other end of the second fixing plate is connected with the third fixing plate; the first fixing plate, the second fixing plate, the third fixing plate and the second connecting plate enclose a fixing space, and the fixing space is communicated with the second opening.

As a further improvement of the utility model, the first connecting plate, the second connecting plate and the third connecting plate are integrally formed by bending.

The utility model provides a conveyer belt, includes a plurality of cluster strips that set up in parallel, twine a plurality of mesh and a plurality of foretell area buckle chain piece on the cluster strip, area buckle chain piece sets up the both ends of cluster strip are used for connecting two adjacent cluster strips, one the cluster strip passes one the first trompil of area buckle chain piece and another the second trompil of area buckle chain piece.

The conveying device comprises a track, the conveying belt and a driving mechanism for driving the conveying belt, wherein the clamping piece is clamped on the track and moves along the track, and the conveying belt moves along the track.

According to the utility model of the scheme, the beneficial effects of the utility model are as follows:

According to the utility model, the connecting piece and the buckling piece which are integrally designed are adopted to replace the traditional buckling piece and the traditional chain piece, so that abnormal abrasion between the buckling piece and the chain piece is avoided, and the damage frequency of the conveying belt is reduced; during maintenance, the buckle and the chain piece are integrally replaced, so that subsequent maintenance is facilitated, the maintenance time is shortened, and the working efficiency is improved; in the conveying process, the buckle is tightly buckled on the track, so that the effect of never turning over the belt is realized, and the working stability is improved.

Drawings

FIG. 1 is a schematic view of a first embodiment of the present utility model at a first angle;

FIG. 2 is a schematic view of a second angle of the first embodiment of the present utility model;

FIG. 3 is a schematic structural view of a first embodiment of the present utility model;

FIG. 4 is a schematic structural view of a third structure of the first embodiment of the present utility model;

FIG. 5 is a schematic view of a first angle of a second embodiment of the present utility model;

FIG. 6 is a schematic view of a second embodiment of the present utility model at a second angle;

FIG. 7 is a schematic view of the structure of the conveyor belt of the present utility model;

fig. 8 is a schematic view of the structure of the conveyor belt and the track of the present utility model.

In the figure: 1. a track; 2. a conveyor belt; 21. stringing; 22. a mesh; 23. a chain piece with a buckle; 231. a first connection plate; 2311. an opening; 2312. a first opening; 2313. a second opening; 2314. a blocking bit; 2315. a first connection portion; 2316. a second connecting portion; 232. a second connecting plate; 233. a third connecting plate; 234. a first fastening part; 2341. a clamping groove; 235. a second fastening part; 236. a third fastening part; 237. a first fixing plate; 238. a second fixing plate; 239. and a third fixing plate.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Referring to fig. 1 and 2, the present utility model provides a buckle-equipped link, including a connector and a buckle, the connector including a first connection plate 231, a second connection plate 232, and a third connection plate 233; one end of the third connection plate 233 is connected to one end of the first connection plate 231, and the other end is connected to one end of the second connection plate 232; the first connection plate 231, the second connection plate 232, and the third connection plate 233 form an opening 2311, and preferably, the first connection plate 231, the second connection plate 232, and the third connection plate 233 are integrally formed by bending; when two buckle chain pieces 23 are combined, one end of the third connecting plate 233 of the second buckle chain piece 23 is inserted into the first buckle chain piece 23 from the opening 2311 of the first buckle chain piece 23, when a plurality of buckle chain pieces 23 are combined, only the buckle pieces are connected with the first connecting plate 231 one by one according to the combination mode of the two buckle chain pieces 23, the first connecting plate 231 and the second connecting plate 232 are respectively provided with a first opening 2312 and a second opening 2313 which are distributed along the direction parallel to the direction of the opening 2311, the direction of the opening 2311 takes the third connecting plate 233 as an origin, along the direction from one end close to the third connecting plate 233 to one end far away from the third connecting plate 233 of the first connecting plate 231, the first opening 2312 on the first connecting plate 231 corresponds to the first opening 2312 on the second connecting plate 232, the second opening 2313 on the first connecting plate 231 corresponds to the second opening 2313 on the second connecting plate 232, the first opening 2312 and/or the second opening 2313 are/is waist holes, namely at least one of the first opening 2312 and the second opening 2313 is/are waist holes, and the long edge of each waist hole is parallel to the direction of the opening 2311, the connecting piece and the clamping piece which are integrally designed are adopted to replace the traditional clamping piece and the traditional chain piece, so that abnormal abrasion between the clamping piece and the chain piece is avoided, and the damage frequency of the conveying belt 2 is reduced; the chain piece 23 with the buckle is integrally replaced during maintenance, so that subsequent maintenance is facilitated, the maintenance time is shortened, and the working efficiency is improved; in the conveying process, the clamping piece is tightly clamped on the track 1 through the clamping groove 2341, so that the effect of never turning over the belt is achieved, and the working stability is improved.

As an embodiment of the present utility model, the first connection plate 231 and/or the second connection plate 232 includes a blocking position 2314, that is, only the blocking position 2314 is provided on the first connection plate 231, or only the blocking position 2314 is provided on the second connection plate 232, or both the first connection plate 231 and the second connection plate 232 are provided with the blocking position 2314, the blocking position 2314 is disposed between the first opening 2312 and the second opening 2313, the blocking position 2314 limits the other connection member to enter the area of the first opening 2312, that is, the inner surface spacing X of the opening 2311 at the blocking position 2314 is smaller than the outer surface spacing S of the opening 2311 near the end of the third connection plate 233, when the two belt buckle chain pieces 23 are combined, the blocking position 2314 of the third connection plate 233 of the second belt buckle chain piece 23 is inserted into the inside of the first belt buckle chain piece 23, and the blocking position 2314 of the first belt buckle chain piece 23 is blocked from continuing, that is prevented from the second belt buckle chain piece 23 from passing through the first opening 2313 and further into the blocking area of the first opening 2314.

As an embodiment of the present utility model, the first connection plate 231 and the second connection plate 232 have the same structure, and each of the first connection plate 2315 and the second connection plate 2316 includes a first connection portion 2315 and a second connection portion 2316, the first connection portion 2315 is connected to the third connection plate 233, a blocking position 2314 is formed at a junction between the first connection portion 2315 and the second connection portion 2316, the first opening 2312 is disposed on the first connection portion 2315, the second opening 2313 is disposed on the second connection portion 2316, and the first connection portion 231 may have the following three structures:

Structure one: referring to fig. 3, the first connection portions 2315 are perpendicular to the third connection plate 233, the second connection portions 2316 are unfolded outwards, i.e., the distance between the two first connection portions 2315 is smaller than the distance between the two second connection portions 2316, and a blocking position 2314 is formed at the junction of the first connection portions 2315 and the second connection portions 2316;

And (2) a structure II: referring to fig. 2, the first connection portion 2315 is perpendicular to the third connection plate 233, the second connection portion 2316 is unfolded outwards, a blocking position 2314 is formed at the junction of the first connection portion 2315 and the second connection portion 2316, one end of the second connection portion 2316, which is far away from the third connection plate 233, is a straight plate, the straight plate is perpendicular to the third connection plate 233, and the second opening 2313 is formed in the straight plate;

And (3) a structure III: referring to fig. 4, the first connection portion 2315 is obliquely disposed, a distance between an end of the first connection portion 2315 away from the third connection plate 233 and a center line of the opening 2311 is greater than a distance between an end of the first connection portion 2315 close to the third connection plate 233 and a center line of the opening 2311, a blocking portion protrudes into the opening 2311 at an intersection of the first connection portion 2315 and the second connection portion 2316, and a blocking portion 2314 is formed at the blocking portion.

As an embodiment of the present utility model, the fastener is connected to an end of the first connecting plate 231, which is far away from the third connecting plate 233, and the width of the first connecting plate 231, which is near to the end of the third connecting plate 233, is narrower than the distance between the end of the first connecting plate 231, which is near to the third connecting plate 233, and the opening 2311 is required to be inserted into the end of the connecting piece, which is near to the third connecting plate 233, when the buckle chain 23 is combined, compared with the end of the first connecting plate 231, which is near to the third connecting plate 233, the fastener is arranged at the wider end, so that the installation space for installing the fastener can be satisfied, the firmness between the fastener and the connecting piece can be increased, the damage rate can be reduced, and the fastener comprises a first buckle part 234, a second buckle part 235 and a third buckle part 236; one end of the second fastening part 235 is connected to the first fastening part 234, and the other end is connected to the third fastening part 236; the first clamping part 234, the second clamping part 235 and the third clamping part 236 enclose into the U-shaped clamping groove 2341, the first clamping part 234 is connected with the lower end of the first connecting plate 231, in the practical use process, the clamping groove 2341 is clamped on the track 1, the connecting piece and the conveying belt 2 are located above the track 1, the conveying belt 2 applies downward pressure to the connecting piece, if the first clamping part 234 is connected with the upper end of the first connecting plate 231, the connecting piece and the conveying belt 2 are located below the track 1, the conveying belt 2 applies downward tension to the connecting piece, and therefore the first clamping part 234 is connected with the lower end of the first connecting plate 231, the risk of fracture between the clamping piece and the connecting piece can be reduced, and the safety and the practicability are improved.

Preferably, the clamping groove 2341 faces the first connecting plate 231 away from the side of the opening 2311, namely, the clamping groove 2341 faces the outer side of the belt buckle chain piece 23, when the belt buckle chain piece 23 is combined with the track 1, the track 1 is located on the inner side of the belt buckle chain piece 23, so that the whole conveying belt 2 clamps the track 1 on the inner side through the belt buckle chain pieces 23 at two ends, and the installation stability is improved.

Referring to fig. 5 and 6, as an embodiment of the present utility model, one end of the first buckling portion 234 away from the second buckling portion 235 is connected to the first connecting plate 231, that is, the buckling member is integrally located below the opening 2311, so that the horizontal width dimension of the whole buckle chain piece 23 is effectively reduced, and in a practical use process, the buckling member can be prevented from being located below the conveying belt 2, the effective area of the conveying belt 2 in the horizontal direction is increased, and the resource utilization rate in the horizontal direction is effectively improved.

As an embodiment of the present utility model, the buckle chain piece further includes a fixing member disposed on a side of the second connecting plate 232 away from the opening 2311, wherein the fixing member covers the second opening 2313, and when the string 21 passes through the second opening 2313, one end of the string 21 is fixed on the fixing member, so as to avoid relative movement between the string 21 and the fixing member, and improve installation stability.

Preferably, the fixing member includes a first fixing plate 237, a second fixing plate 238, and a third fixing plate 239, the first fixing plate 237 being connected to the second connecting plate 232; one end of the second fixing plate 238 is connected to the first fixing plate 237, and the other end is connected to the third fixing plate 239; the first fixing plate 237, the second fixing plate 238, the third fixing plate 239 and the second connecting plate 232 enclose a fixing space, the fixing space is communicated with the second opening 2313, the string 21 is fixed on the inner wall of the fixing space, and the fixing position of the end point of the string 21 is prevented from colliding or impacting with foreign objects through the protection of the first fixing plate 237, the second fixing plate 238, the third fixing plate 239 and the second connecting plate 232, so that the string 21 and the fixing piece fall off, and the installation stability is further improved.

Referring to fig. 7, the present utility model provides a conveyor belt, which includes a plurality of parallel strings 21, a mesh 22 wound around the strings 21, and a plurality of buckle chain pieces 23, wherein the buckle chain pieces 23 are disposed at two ends of the strings 21 to connect two adjacent strings 21, one string 21 passes through a first opening 2312 of one buckle chain piece 23 and a second opening 2313 of the other buckle chain piece 23, i.e., the first buckle chain piece 23 is inserted into the second buckle chain piece 23, one string 21 passes through one second opening 2313 of the second buckle chain piece 23, two first openings 2312 of the first buckle chain piece 23, and the other second opening 2313 of the second buckle chain piece 23 in sequence, the string 21 can move in the first opening 2312 and/or the second opening 2313, that is, if the first opening 2312 is a waist hole, the string 21 can move in the first opening 2312, if the second opening 2313 is a waist hole, the string 21 can move in the second opening 2313, so that the relative movement between two adjacent belt buckle chain pieces 23 is realized, during the movement process, one side of the conveyor belt 2 is naturally contracted, partial overlapping is formed between the adjacent belt buckle chain pieces 23, the adjacent belt buckle chain pieces 23 can be prevented from interfering during spiral conveying through the blocking position 2314, and the other side of the conveyor belt 2 is naturally unfolded, so that the curved conveying of the conveyor belt 2 is realized.

Referring to fig. 8, the utility model provides a conveying device, which comprises a track 1, a conveying belt 2 and a driving mechanism for driving the conveying belt 2, wherein a clamping piece is clamped on the track 1 and moves along the track 1, the conveying belt 2 is guided by the track 1, a conventional self-stacking complex transmission track can be replaced, the integral structure of the conveying device is simplified, one or more conveying belts 2 can be arranged at the same time, one inlet/outlet or multiple inlet/outlet are realized, multiple inlet/outlet modes such as low inlet/outlet, high inlet/outlet and the like can be realized, the inlet/outlet direction can be arranged at will, the arrangement requirements of a customer site and a production line are fully met, the conveying device is flexible and convenient to connect with the production line, and the practicability is improved.

In summary, the utility model provides a chain piece with a buckle, a conveyor belt and a conveyor device, wherein a connecting piece and a buckle piece which are integrally designed are adopted to replace the traditional buckle and the traditional chain piece, so that abnormal abrasion between the buckle and the chain piece is avoided, and the damage frequency of the conveyor belt 2 is reduced; the chain piece 23 with the buckle is integrally replaced during maintenance, so that subsequent maintenance is facilitated, the maintenance time is shortened, and the working efficiency is improved; in the conveying process, the clamping piece is tightly clamped on the track 1 through the clamping groove 2341, so that the effect of never turning the belt is realized, and the working stability is improved; the blocking position 2314 can limit the other connecting piece from entering the area of the first opening 2312, so that the adjacent buckle chain piece 23 is not interfered when being bent inwards and outwards; the fastening piece is connected with one end of the first connecting plate 231 far away from the third connecting plate 233, so that the installation space for installing the fastening piece can be met, the firmness between the fastening piece and the connecting piece can be improved, and the damage rate is reduced; the first fastening part 234 is connected with the lower end of the first connecting plate 231, so that the risk of fracture between the fastening piece and the connecting piece can be reduced, and the safety and the practicability are improved; one end of the string 21 is fixed on the fixing piece, so that relative movement between the string 21 and the fixing piece is avoided, and the installation stability is improved; the whole below that is located opening 2311 of fastener has effectively reduced the holistic horizontal width size of taking the buckle chain piece 23, in the in-service use in-process, can avoid the fastener to be located the below of conveyer belt 2, increases the effective area of conveyer belt 2 on the horizontal direction, effectively improves the resource utilization ratio on the horizontal direction.

It is emphasized that: the above embodiments are merely preferred embodiments of the present utility model, and the present utility model is not limited in any way, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical substance of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims (11)

1. The buckle-carrying chain piece is characterized by comprising a connecting piece and a buckle piece, wherein the connecting piece comprises a first connecting plate (231), a second connecting plate (232) and a third connecting plate (233); one end of the third connecting plate (233) is connected with one end of the first connecting plate (231), and the other end of the third connecting plate is connected with one end of the second connecting plate (232); the utility model discloses a waist hole, including first connecting plate (231), second connecting plate (232) and third connecting plate (233), opening (2311) are kept away from internal surface interval of third connecting plate (233) one end is L, opening (2311) is close to the surface interval of third connecting plate (233) one end is S, L > S, buckle spare with first connecting plate (231) are connected, first connecting plate (231) with all be equipped with on second connecting plate (232) along being on a parallel with first trompil (2312) and second trompil (2313) that the orientation direction of opening (2311) arranged, two the position of first trompil (2312) corresponds, two the position of second trompil (2313) corresponds, first trompil (2312) and/or second trompil (2313) are the waist hole.

2. The snap-in chain with strap according to claim 1, characterized in that the first connection plate (231) and/or the second connection plate (232) comprise a blocking position (2314), which blocking position (2314) is arranged between the first opening (2312) and the second opening (2313), which blocking position (2314) limits the entry of the other connection piece into the area of the first opening (2312).

3. The snap-in chain with fastener according to claim 2, wherein the first connection plate (231) and the second connection plate (232) have the same structure, each include a first connection portion (2315) and a second connection portion (2316), the first connection portion (2315) is connected with the third connection plate (233), the junction between the first connection portion (2315) and the second connection portion (2316) forms the blocking position (2314), the first opening (2312) is provided on the first connection portion (2315), and the second opening (2313) is provided on the second connection portion (2316).

4. A snap-in chain with strap according to claim 3, characterized in that the snap-in element is connected to the second connection part (2316).

5. The snap-in chain with strap of claim 1, wherein the snap-in member comprises a first snap-in portion (234), a second snap-in portion (235) and a third snap-in portion (236); one end of the second fastening part (235) is connected with the first fastening part (234), and the other end is connected with the third fastening part (236); the first buckling part (234), the second buckling part (235) and the third buckling part (236) enclose into a U-shaped clamping groove (2341), and the first buckling part (234) is connected with the lower end of the first connecting plate (231).

6. The snap-in chain with strap according to claim 5, characterized in that the clamping groove (2341) faces the side of the first connecting plate (231) facing away from the opening (2311).

7. The snap-in chain tab of claim 1, further comprising a fastener disposed on a side of the second web (232) remote from the opening (2311), the fastener covering the second aperture (2313).

8. The snap-in chain of claim 7, wherein the securing member comprises a first securing plate (237), a second securing plate (238), and a third securing plate (239), the first securing plate (237) being connected to the second connecting plate (232); one end of the second fixing plate (238) is connected with the first fixing plate (237), and the other end is connected with the third fixing plate (239); the first fixing plate (237), the second fixing plate (238), the third fixing plate (239) and the second connecting plate (232) enclose a fixing space, and the fixing space is communicated with the second opening (2313).

9. The snap-in chain with strap according to claim 1, characterized in that the first (231), second (232) and third (233) connecting plates are integrally formed by bending.

10. A conveyor belt, characterized by comprising a plurality of parallel strings (21), a net wire (22) wound on the strings (21) and a plurality of buckle chain pieces (23) according to any one of claims 1-9, wherein the buckle chain pieces (23) are arranged at two ends of the strings (21) and are used for connecting two adjacent strings (21), and one string (21) passes through a first opening (2312) of one buckle chain piece (23) and a second opening (2313) of the other buckle chain piece (23).

11. A conveyor device, characterized by comprising a track (1), a conveyor belt (2) according to claim 10 and a driving mechanism driving the conveyor belt (2), said fastener being fastened to the track (1) and moving along the track (1), the conveyor belt (2) moving along the track (1).