Protective assembly and roll shaft transmission line with same

Abstract

The utility model provides a protection assembly and a roll shaft transmission line with the same, and relates to the technical field of glass production equipment.The protection assembly comprises a base and a protection plate set, the protection plate set comprises a first connecting plate body, a second connecting plate body and a third connecting plate body which are sequentially connected, and an avoiding part is arranged on the third connecting plate body; the first connecting plate body is rotatably connected with the base, the second connecting plate body, the third connecting plate body and the base define a protection space of the transmission position, and the roller shaft penetrates through the receding part to be in transmission connection with the output shaft. The protection assembly is arranged, so that glass or glass fragments on the roller shaft can be effectively prevented from entering the transmission assembly, protection of the transmission assembly is achieved, the protection assembly is convenient to open and close, and follow-up maintenance work is facilitated. The roller shaft transmission line effectively solves the problems that an existing roller shaft transmission line is poor in protection effect at the transmission position, damage is likely to occur for maintenance, and the production efficiency is affected.

Description

Technical Field

[0001] The present application relates to the technical field of glass production equipment, and in particular to a protective component and a roller transmission line having the same. Background Art

[0002] Glass is used in every aspect of our lives, and the current demand is extremely high, which in turn puts increasing pressure on manufacturers. During the processing of glass on the cold end of the production line, glass needs to be transported between multiple processes. This transport equipment utilizes numerous drive shafts and rollers. The rollers are driven by shafts and transmission devices, achieving synchronous rotation and facilitating the transportation of glass.

[0003] Interference between glass transport and the roller conveyor can easily lead to breakage and fragmentation of glass products, or defective products carrying glass fragments can enter the transmission device, causing damage to the transmission structure. The roller conveyor shaft and the transmission structure are driven by metal bevel gears and nylon bevel gears, which are easy to replace and maintain. However, the existing technology does not protect the transmission position. For example, in the patent CN201820918658.4, the transmission at both ends is directly exposed. With the increase in production and demand, relying solely on the easy-to-maintain transmission component setting is unable to meet production needs, and the maintenance frequency is increasing, seriously affecting production efficiency and increasing maintenance costs.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. Utility Model Content

[0005] A technical problem to be solved by the present application is that the existing roller transmission line has poor protection effect at the transmission position and is easily damaged and requires maintenance, which affects production efficiency.

[0006] In order to solve the above technical problems, on the first aspect, an embodiment of the present application provides a protective component, which is used for protecting the transmission position of a roller transmission line. The transmission position is provided with an output shaft and a roller shaft with a transmission connection. The protective component includes a base and a protective plate group. The protective plate group includes a first connecting plate body, a second connecting plate body and a third connecting plate body connected in sequence. The third connecting plate body is provided with an avoidance portion. The first connecting plate body and the base are rotatably connected. The second connecting plate body, the third connecting plate body and the base form a protective space for the transmission position. The roller shaft passes through the avoidance portion and is transmission-connected to the output shaft.

[0007] In some embodiments, the avoidance portion includes a connected adaptation area and an avoidance area, the adaptation area is adapted to the circumference of the roller shaft, and the avoidance area forms an opening of the third connecting plate body away from the second connecting plate body.

[0008] In some embodiments, the adaptation area is an arc-shaped space, and the adaptation area is clearance-matched with the roller shaft.

[0009] In some embodiments, a support rod is provided on a side of the second connecting plate facing the base, and an end of the support rod close to the base is in a locked state and an unlocked state with the base.

[0010] In some embodiments, a locking hole is provided on a side of the base facing the second connecting plate body, and a locking piece is provided on an end of the support rod body away from the second connecting plate body, and the locking piece is adapted to the locking hole.

[0011] In some embodiments, the locking member is made of a flexible material, and the locking member is interference fit with the locking hole.

[0012] In some embodiments, the first connecting plate body and the second connecting plate body are rotatably connected.

[0013] In some embodiments, one or more first rotating structures are provided between the first connecting plate and the base; and / or one or more second rotating structures are provided between the first connecting plate and the second connecting plate.

[0014] In some embodiments, a limiting bracket is provided between the first connecting plate and the second connecting plate, one end of the limiting bracket is fixedly connected to the first connecting plate or the second connecting plate, and the other end is buffer-connected to the second connecting plate or the first connecting plate.

[0015] In a second aspect, an embodiment of the present application provides a roller transmission line for transporting glass products. The roller transmission line includes a transmission component and a protective component as described above. The transmission position of the transmission component is located within a protective space formed by the protective component.

[0016] Through the above technical solution, the present application provides a protective assembly and a roller transmission line having the same, wherein the protective assembly includes a base and a protective plate group, the protective plate group includes a first connecting plate body, a second connecting plate body and a third connecting plate body connected in sequence, the third connecting plate body is provided with an avoidance portion, the first connecting plate body and the base are rotatably connected, the second connecting plate body, the third connecting plate body and the base form a protective space of the transmission position, and the roller shaft is connected to the output shaft through the avoidance portion. The opening and closing of the protective space is achieved by the rotatable first connecting plate body, and the output shaft of the transmission position and the roller shaft can be effectively protected to prevent glass or glass fragments on the roller shaft from entering the transmission assembly, thereby achieving effective isolation, and the rotatable connection between the first connecting plate body and the base realizes the opening of the protective assembly, and when damage occurs between the output shaft and the roller shaft, it can be easily opened for inspection and maintenance. The protective means reduce the probability of glass slag and the like entering the transmission position, and the protective assembly is also set to a structure that is easy to open and close, which is conducive to subsequent maintenance operations. The present application effectively solves the problem that the existing roller transmission line has poor protection effect at the transmission position, is easily damaged and requires maintenance, and affects production efficiency.

[0017] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 A schematic diagram of the three-dimensional structure of a protective assembly disclosed in an embodiment of the present application applied to a roller transmission line is shown;

[0020] Figure 2 Shown Figure 1 Schematic diagram of the main view of the protective assembly on the roller transmission line;

[0021] Figure 3 Shown Figure 1 Schematic diagram of the three-dimensional structure of the protective component;

[0022] Figure 4 Shown Figure 3 A partially enlarged schematic diagram of the protective component from a top-down perspective;

[0023] Figure 5 Shown Figure 3 A partially enlarged schematic diagram of the protective component when viewed from above.

[0024] The above drawings contain the following reference numerals:

[0025] 10. Transmission position; 11. Output shaft; 12. Roller shaft; 20. Base; 21. Locking hole; 30. Protective plate group; 31. First connecting plate body; 32. Second connecting plate body; 321. Support rod body; 322. Locking piece; 33. Third connecting plate body; 331. Avoidance part; 3311. Adaptation area; 3312. Avoidance area; 34. Limiting bracket; 341. Bracket body; 342. Buffer end; 40. Protective space; 50. First rotating structure; 60. Second rotating structure; 70. Roller shaft; 80. Support seat. DETAILED DESCRIPTION

[0026] The following detailed description of the embodiments of the present application is provided in conjunction with the accompanying drawings and examples. The detailed description of the following examples and the accompanying drawings are intended to illustrate the principles of the present application, but are not intended to limit the scope of the present application. The present application may be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but rather includes all technical solutions within the scope of the claims.

[0027] The present application provides these embodiments to make this application thorough and complete, and to fully express the scope of this application to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments should be interpreted as merely exemplary, and not as limiting.

[0028] It should be noted that, in the description of this application, unless otherwise specified, "plurality" means greater than or equal to two; the terms "upper," "lower," "left," "right," "inner," "outer," and the like, indicating directions or positional relationships, are intended solely to facilitate the description of this application and simplify the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0029] In addition, the terms "first," "second," and similar terms used in this application do not denote any order, quantity, or importance, but are simply used to distinguish different parts. "Perpendicular" does not mean perpendicular in the strict sense, but rather means within the tolerance range. "Parallel" does not mean parallel in the strict sense, but rather means within the tolerance range. "Include" or "comprising" and similar terms mean that the elements preceding the word include the elements listed after the word, and do not exclude the possibility of other elements being included.

[0030] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections or indirect connections through an intermediary. A person of ordinary skill in the art will understand the specific meanings of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intervening device between the specific device and the first or second device.

[0031] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in, for example, common dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and should not be interpreted in an idealized or highly formal sense, unless explicitly defined as such herein.

[0032] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0033] First, as Figures 1 to 3 As shown, in some exemplary embodiments of the present application, a protective component is provided for protecting the transmission position 10 of a roller transmission line. The transmission position 10 is provided with an output shaft 11 and a roller shaft 12 with a transmission connection. The protective component includes: a base 20 and a protective plate group 30. The protective plate group 30 includes a first connecting plate body 31, a second connecting plate body 32 and a third connecting plate body 33 connected in sequence. The third connecting plate body 33 is provided with an avoidance portion 331. The first connecting plate body 31 and the base 20 are rotatably connected. The second connecting plate body 32, the third connecting plate body 33 and the base 20 form a protective space 40 of the transmission position 10. The roller shaft 12 is transmission-connected to the output shaft 11 through the avoidance portion 331.

[0034] By using the rotatable first connecting plate 31 to realize the opening and closing of the protective space 40, the output shaft 11 and the roller shaft 12 of the transmission position 10 can be effectively protected to prevent glass or glass fragments on the roller shaft 12 from entering the transmission assembly, thereby achieving effective isolation. The rotatable connection between the first connecting plate 31 and the base 20 realizes the opening and closing of the protective assembly. When damage occurs between the output shaft 11 and the roller shaft 12, it can be easily opened for inspection and maintenance. The protective means reduce the probability of glass slag and the like entering the transmission position, and the protective assembly is also set to a structure that is easy to open and close, which is conducive to subsequent maintenance operations. The present application effectively solves the problem that the existing roller transmission line has poor protection effect at the transmission position, is prone to damage and maintenance, and affects production efficiency.

[0035] It is understood that in the prior art, the roller shaft is configured such that one end of the output shaft 11 is a transmission gear made of metal material, while the other end of the roller shaft 12 is a transmission gear made of nylon material. This configuration can achieve transmission, and the soft-hard contact can protect the transmission box at the other end of the output shaft 11. When debris such as broken glass slag enters the meshing metal gear and nylon gear, the metal gear has a higher rigidity, causing damage to the nylon gear, thus playing a protective role. The probability of debris entering the meshing metal gear and nylon gear increases with the expansion of production, so the number of repairs will increase, affecting production efficiency.

[0036] In some optional embodiments, an adsorption structure for adsorbing impurities such as broken glass may be provided at the entrance of the avoidance portion 331 , which may adsorb some of the impurities and further reduce the impact of the impurities on the transmission structure.

[0037] like Figure 1 and Figure 3 As shown, in some exemplary embodiments of the present application, the avoidance portion 331 includes a connected adaptation area 3311 and an avoidance area 3312. The adaptation area 3311 adapts to the circumference of the roller shaft 12, and the avoidance area 3312 forms an opening of the third connecting plate body 33 away from the second connecting plate body 32. The configuration of the adaptation area 3311 can meet the rotation requirements of the roller shaft 12, while the configuration of the avoidance area 3312 is used to prevent interference with the roller shaft 12 when the protective assembly is opened. This configuration enables inspection during operation, that is, the opening of the third connecting plate body 33 does not affect the normal rotation of the roller shaft 12.

[0038] It should be noted that the avoidance area 3312 can specifically be an opening that matches the radial size of the roller shaft 12.

[0039] Furthermore, in some optional embodiments, a plug-in portion is provided on the base 20, and the plug-in portion is adapted to the avoidance area 3312. When the third connecting plate body 33 is matched with the base 20, the plug-in portion is inserted into the avoidance area 3312 to form mutual limitation, thereby realizing the positioning of the third connecting plate body 33.

[0040] Furthermore, an arc-shaped mating area is provided on one side of the plug-in portion close to the third connecting plate body 33, and the mating area is close to the adaptation area 3311, and is adapted to the peripheral area of the roller shaft 12, or the mating area and the adaptation area 3311 form a space surrounding the roller shaft 12, thereby supporting the roller shaft 12.

[0041] Furthermore, a rotating bearing is arranged between the roller shaft 12 and the matching area and the adaptation area 3311. The rotating bearing is fixed on the plug-in part, and the avoidance part 331 is arranged to semi-surround the entire plug-in part. This can meet the rotation support of the roller shaft 12, provide a good rotation foundation, and make the structure more compact and reliable.

[0042] like Figure 1 and Figure 3 As shown, in some exemplary embodiments of the present application, the adapting region 3311 is an arc-shaped space, and the adapting region and the roller shaft 12 have a clearance fit. This clearance fit prevents the adapting region 3311 from interfering with the roller shaft 12 even when fixed, providing effective protection. Furthermore, the clearance fit provides a compact structure, and the clearance prevents impurities of a certain size from entering the protective space 40.

[0043] like Figures 1 to 5 As shown, in some exemplary embodiments of the present application, a support rod 321 is provided on a side of the second connecting plate 32 facing the base 20. The end of the support rod 321, which is close to the base 20, is locked and unlocked with the base 20. The provision of the support rod 321 can limit the lowest position of the second connecting plate 32, thereby limiting the positions of the second connecting plate 32 and the third connecting plate 33.

[0044] It can be understood that the support rod body 321 plays a fixed supporting role, and its position is closer to the first connecting plate body 31 than the third connecting plate body 33. The distance between the rotation point between the support rod body 321 and the first connecting plate body 31 is smaller than the distance between the avoidance portion 331 on the third connecting plate body 33 and the rotation point of the first connecting plate body 31. Therefore, when the first connecting plate body 31 rotates, the rotation radius of the support rod body 321 is smaller, and it is more suitable for supporting the second connecting plate body 32.

[0045] In some alternative embodiments, such as Figure 5As shown, along the arrangement direction of the roller shaft 12, a plurality of support rods 321 are provided, and the plurality of support rods 321 can effectively support various positions of the second connecting plate 32, avoiding the occurrence of a center of gravity shift, which causes the second connecting plate 32 to fail.

[0046] like Figure 4 and Figure 5 As shown, in some exemplary embodiments of the present application, a locking hole 21 is provided on the side of the base 20 facing the second connecting plate 32, and a locking member 322 is provided on the end of the support rod 321 away from the second connecting plate 32. The locking member 322 is adapted to fit into the locking hole 21. The locking hole 21 is provided to accommodate the support rod 321, thereby forming a circumferential degree of freedom restriction, which can effectively resist earthquakes.

[0047] As is understandable, the roller conveyor line requires a large amount of glass transfer during operation, resulting in continuous rotation. Based on current manufacturing processes, this prolonged rotation can generate a certain amount of vibration. Without the locking member 322 and support rod 321, the avoidance portion 331 could deviate or vibrate relative to the roller shaft 12, potentially causing contact or even collision between the third connecting plate 33 and the roller shaft 12, potentially damaging the roller shaft 12.

[0048] In some exemplary embodiments of the present application (not shown in the figures), the locking member 322 is made of a flexible material and has an interference fit with the locking hole 21. The provision of the flexible material allows the locking member 322 to form a flexible abutment with the locking hole 21, acting as a filler. This results in a flexible connection between the support rod 321 and the base 20. On the one hand, the interference fit can increase the degree of engagement between the two and enhance the supporting function of the support rod 321. On the other hand, the flexible contact can achieve a buffered connection, preventing the force from being directly transmitted to the second connecting plate 32 through the support rod 321, thereby improving the overall service life of the protective assembly.

[0049] The flexible material may specifically be a rubber material, a nylon material, a plastic plastic, a silicone, etc., as long as it can abut against and fill the locking hole 21 .

[0050] It should be noted that, in some optional embodiments, a gasket or a washer made of a flexible material may be provided between the locking member 322 and the locking hole 21 to achieve the above-mentioned effect.

[0051] In addition, the locking piece 322 and the locking hole 21 can also be snap-fitted, such as a slot and a tongue, a slot and an insert tongue, a plate buckle, etc., which can form a stable connection and be easy to disassemble.

[0052] like Figures 1 to 5As shown, in some exemplary embodiments of the present application, the first connecting plate 31 is rotatably connected to the second connecting plate 32. The arrangement in which the first connecting plate 31 can rotate relative to the second connecting plate 32 enables the protective assembly to be opened by flipping the second connecting plate 32. Such an arrangement allows the second connecting plate 32 to be simply opened for simple maintenance without affecting the multiple rollers arranged in the same direction.

[0053] In addition, the provision of the two rotation points allows the third connecting plate 33 to have multiple rotation angle options during the rotation process, that is, it can be installed at different angles relative to the roller shaft 12.

[0054] like Figures 1 to 5 As shown, in some exemplary embodiments of the present application, one or more first rotating structures 50 are provided between the first connecting plate 31 and the base 20; and / or one or more second rotating structures 60 are provided between the first connecting plate 31 and the second connecting plate 32. The provision of the first rotating structures 50 and the second rotating structures 60 enables the first connecting plate 31 and the second connecting plate 32 to rotate.

[0055] The first rotating structure 50 and / or the second rotating structure 60 is a hinge, and the two blades of the hinge are respectively fixed on the two sides that can rotate relative to each other by fasteners, that is, the two blades of the first rotating structure 50 are respectively fixed on the first connecting plate body 31 and the base 20, and the two blades of the second rotating structure 60 are respectively fixed on the first connecting plate body 31 and the second connecting plate body 32.

[0056] Along the arrangement direction of the roller shaft 12, the first rotating structure 50 and / or the second rotating structure 60 are provided in plurality and are evenly arranged along the length direction of the protection assembly. In one embodiment, there are two first rotating structures 50 and two second rotating structures 60, which are symmetrically arranged.

[0057] like Figures 1 to 5 As shown, in some exemplary embodiments of the present application, a limiting bracket 34 is provided between the first connecting plate 31 and the second connecting plate 32. One end of the limiting bracket 34 is fixedly connected to the first connecting plate 31 or the second connecting plate 32, and the other end is buffer-connected to the second connecting plate 32 or the first connecting plate 31. The limiting bracket 34 is provided to limit the angle at which the first connecting plate 31 and the second connecting plate 32 are closest to each other, thereby achieving the positioning of the second connecting plate 32 and the third connecting plate 33, thereby stabilizing the structure.

[0058] like Figures 1 to 5As shown, in some exemplary embodiments of the present application, the limiting bracket 34 includes a bracket body 341 and a buffer end 342. The bracket body 341 includes two connecting ends, and the connecting ends extend in an angled direction to adapt to the first connecting plate 31 and the second connecting plate 32 in different positions. The buffer end 342 is used to abut and form a flexible connection to prevent damage to the first connecting plate 31 or the second connecting plate 32 during rotation.

[0059] In one embodiment, the bracket body 341 is fixedly connected to the second connecting plate 32, and the buffer end 342 is arranged to face the first connecting plate 31 after a 90-degree turn. The buffer end 342 is made of a flexible material to provide shock absorption and force absorption. It forms a flexible abutment with the first connecting plate 31, achieving a buffered connection and preventing direct force transmission to the first connecting plate 31, thereby improving the overall service life of the protective assembly. The buffer end 342 can be made of rubber, nylon, plastic, silicone, etc., as long as it can abut the first connecting plate 31.

[0060] like Figures 1 to 5 As shown, in some exemplary embodiments of the present application, the protective assembly is generally in an inverted U-shape, protecting the metal bevel gear and nylon bevel gear that mesh with each other between the output shaft 11 and the roller shaft 12. The rear end of the protective assembly has two sets of circular holes for securing the hinges. The first connecting plate 31, the second connecting plate 32, and the third connecting plate 33 are all planar metal plate structures. The lower portion of the third connecting plate 33 has evenly distributed semicircular arc structures, namely, avoidance portions 331, which are clearance-matched with the roller shaft 12 to prevent the entry of impurities such as broken glass during roller rotation.

[0061] In some exemplary embodiments of this application, the protective assembly is made of Q235 steel plate or other materials that meet strength requirements. The specific dimensions are determined based on the on-site roller table frame dimensions, drive shaft position, bevel gear elevation, bearing seat elevation, roller table spacing, and other data, with a certain amount of safe operating clearance allowed.

[0062] It should be noted that the top of the third connecting plate 33 must be higher than the roller shaft head to prevent friction between the protective assembly and the roller shaft head, which could cause roller wear. The lowest point of the third connecting plate 33 must be lower than the lower edge of the roller frame to prevent broken glass from entering the protective assembly and getting stuck in the bevel gear gap, causing damage to the bevel gear.

[0063] The overall height of the third connecting plate 33 must not interfere with the opening and closing of the guard assembly. If it is too high, it may collide with the roller conveyor during opening, preventing the guard assembly from opening and making it impossible to inspect and maintain the bevel gear and bearings. In an emergency, the guard assembly's hinge bolts must be removed.

[0064] In an optional embodiment, the first rotating structure 50 is a hinge, one side of which is fixed to the base 20 and the other side to the first connecting plate 31, secured with bolts. This facilitates opening and closing the entire protective assembly during maintenance. The hinge's fixing nut can be secured with a locknut or secured with bolt-locking adhesive to prevent the nut from loosening due to vibration caused by prolonged operation of the cold end frame, potentially causing the protective assembly to fall and potentially leading to other roller and equipment failures.

[0065] A support rod 321 is mounted on the second connecting plate 32. The upper end of the support rod 321 is made of polyurethane, while the lower portion is made of round metal steel. The primary function of the support rod 321 is to support the weight of the entire protective assembly. The polyurethane rubber ring on the support rod 321 mitigates vibration caused by the cold end frame's prolonged operation, which can generate noise and, in severe cases, cause the support rod 321 to wear through the second connecting plate 32.

[0066] Secondly, some exemplary embodiments of the present application provide a roller conveyor line for transporting glass products, comprising a transmission assembly and a protective assembly as described in any of the above embodiments, wherein the transmission assembly is located within a protective space 40 formed by the protective assembly. The beneficial effects of the protective assembly are described in the above embodiments and are not further elaborated here.

[0067] By applying the protection assembly in the above embodiment, the transmission of the roller shaft 12 and the output shaft 11 can be effectively protected, thereby achieving effective rotation of the roller shaft 70.

[0068] It should be noted that the roller transmission line further includes a support base 80 mounted on the other end of the roller 70 , and the rotation of the roller is achieved through the support base 80 cooperating with the base 20 .

[0069] So far, the various embodiments of the present application have been described in detail. To avoid obscuring the concept of the present application, some details well known in the art have not been described. Based on the above description, those skilled in the art can fully understand how to implement the technical solutions disclosed herein.

[0070] Although some specific embodiments of the present application have been described in detail through examples, those skilled in the art will understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present application. Those skilled in the art will understand that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present application. In particular, as long as there are no structural conflicts, the various technical features mentioned in the various embodiments may be combined in any manner.

Claims

1. A protection component, used for protecting a transmission position (10) of a roller transmission line, wherein the transmission position (10) is provided with an output shaft (11) and a roller shaft (12) in transmission connection, characterized in that: include: Base (20); The protective plate group (30) includes a first connecting plate body (31), a second connecting plate body (32) and a third connecting plate body (33) connected in sequence, the third connecting plate body (33) is provided with an avoidance portion (331), the first connecting plate body (31) and the base (20) are rotatably connected, the second connecting plate body (32), the third connecting plate body (33) and the base (20) enclose a protective space (40) of the transmission position (10), and the roller shaft (12) passes through the avoidance portion (331) and is transmission-connected to the output shaft (11).

2. The protective assembly according to claim 1, characterized in that: The avoidance portion (331) includes a connected adaptation area (3311) and an avoidance area (3312), wherein the adaptation area (3311) is adapted to the peripheral side of the roller shaft (12), and the avoidance area (3312) forms an opening of the third connecting plate body (33) away from the second connecting plate body (32).

3. The protection assembly according to claim 2, characterized in that: The adapting area (3311) is an arc-shaped space, and the adapting area is clearance-matched with the roller shaft (12).

4. The protection assembly according to claim 1, characterized in that: A support rod (321) is provided on a side of the second connecting plate (32) facing the base (20), and an end of the support rod (321) close to the base (20) is in a locked state and an unlocked state with the base (20).

5. The protection assembly according to claim 4, characterized in that: A locking hole (21) is provided on a side of the base (20) facing the second connecting plate body (32), and a locking piece (322) is provided on an end of the support rod body (321) away from the second connecting plate body (32), and the locking piece (322) is adapted to the locking hole (21).

6. The protection assembly according to claim 5, characterized in that: The locking piece (322) is made of a flexible material, and the locking piece (322) is interference-fitted with the locking hole (21).

7. The protection assembly according to any one of claims 1 to 6, characterized in that: The first connecting plate body (31) and the second connecting plate body (32) are rotatably connected.

8. The protection assembly according to claim 7, characterized in that: One or more first rotating structures (50) are provided between the first connecting plate (31) and the base (20); and / or, One or more second rotating structures (60) are provided between the first connecting plate body (31) and the second connecting plate body (32).

9. The protection assembly according to claim 7, characterized in that: A limiting bracket (34) is provided between the first connecting plate body (31) and the second connecting plate body (32); one end of the limiting bracket (34) is fixedly connected to the first connecting plate body (31) or the second connecting plate body (32), and the other end is buffer-connected to the second connecting plate body (32) or the first connecting plate body (31).

10. A roller transmission line, used for transporting glass products, characterized in that: The invention comprises a transmission component and a protection component according to any one of claims 1 to 9, wherein the transmission position of the transmission component is located in the protection space (40) formed by the protection component.

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