Dustproof roller shutter door motor chain

Abstract

The utility model discloses a dustproof roller shutter door motor chain, relates to the technical field of roller shutter door motor chains, and aims to solve the problems that a traditional roller shutter door motor chain is easy to wear and short in service life in a dust environment. The chain is mainly composed of a pin shaft, an outer chain plate, a sleeve, an inner chain plate, a roller and a matched sealing piece. O-shaped sealing rings are arranged between the pin shafts and the outer chain plates; a first sealing piece is arranged between the sleeve and the outer chain plate; the second sealing piece is arranged between the roller and the inner chain plate, the sealing lip abuts against the end face of the roller, the V-shaped groove is formed in the end face of the sealing lip, the abrasion-resistant ring is embedded in the V-shaped groove, the sealing performance is improved, abrasion is reduced, and the abrasion-resistant ring is stably installed through matching of the positioning block and the positioning groove of the sealing lip. According to the utility model, the dustproof performance of the roller shutter door motor chain is obviously improved, the service life of the chain is effectively prolonged, the maintenance cost is reduced, the stable operation of a roller shutter door system in a dust environment is ensured, and the roller shutter door motor chain has obvious economic benefits and application values.

Description

Technical Field

[0001] This utility model relates to the field of roller shutter door motor chain technology, specifically to a dustproof roller shutter door motor chain. Background Technology

[0002] The motor chain of a roller shutter door is a crucial component of the roller shutter door drive system, used to transmit power to open and close the door. During operation, the motor chain may be exposed to dust and other impurities. Existing roller shutter door motor chains are insufficient in dust prevention, allowing dust and other impurities to easily enter the chain, leading to accelerated wear between chain components, affecting the chain's lifespan and operational stability, and ultimately impacting the normal use of the roller shutter door. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a dustproof roller shutter door motor chain. By setting a sealing structure between each component of the chain, dust and other impurities are effectively prevented from entering the chain, reducing wear between components, improving the service life and operational stability of the chain, and ensuring the normal use of the roller shutter door.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] This utility model discloses a dustproof roller shutter door motor chain, which mainly consists of a pin, outer chain plate, sleeve, inner chain plate, roller, and multiple sealing components. By setting sealing structures at the joints of each component, a good dustproof effect is achieved, ensuring the stability of chain operation and extending its service life.

[0006] The components at the connection between the pin and the outer link plate include the pin, two outer link plates, and an O-ring seal.

[0007] Connection method and sealing principle: Two outer chain plates are respectively installed at both ends of the pin, and O-rings are installed between the outer chain plates and the pin. The O-rings rely on their elastic deformation to tightly fill the gap between the mounting holes of the outer chain plates and the pin, effectively preventing dust and other impurities from entering the chain from this area. For example, the O-ring acts like an "elastic gasket," which, when compressed by the outer chain plates and the pin, adheres tightly to both surfaces, forming a reliable seal.

[0008] The components at the connection between the sleeve and the outer and inner chain plates consist of the sleeve, two inner chain plates, and a first seal.

[0009] Connection method and sealing principle: The sleeve is fitted onto the pin, and a first sealing element is provided between the sleeve and the outer chain plate. The first sealing element includes a first sealing part, a second sealing part, and a third sealing part. The first sealing part is fitted onto the outer circumference of the pin and is located between the first mounting hole of the outer chain plate and the end face of the sleeve, preventing dust from entering through this gap; the second sealing part is connected to the outer circumference of the first sealing part and is accommodated in the first mounting hole of the outer chain plate, further enhancing the sealing effect; the third sealing part is connected to the second sealing part and is located between the first mounting hole and the inner chain plate, achieving all-around sealing.

[0010] Further optimization: The end face of the third sealing part has several annular notches, and a sealing strip is embedded in each annular notch. The sealing strip can further fill the tiny gaps between the third sealing part and the surrounding components, improving the sealing performance and making it more difficult for dust to enter.

[0011] The components at the connection between the roller and the inner chain plate consist of the roller, the inner chain plate, and the second seal.

[0012] Connection method and sealing principle: The roller is sleeved on the sleeve, and a second sealing element is provided between the roller and the inner chain plate. The second sealing element includes a sealing body and a sealing lip. The sealing body is sleeved on the outer circumference of the sleeve and accommodated in the second mounting hole of the inner chain plate, playing a basic sealing role; the sealing lip is connected to the outside of the sealing body and abuts against the end face of the roller to prevent dust from entering from the gap between the roller and the inner chain plate.

[0013] Further optimization:

[0014] The sealing lip has V-grooves: Several V-grooves are formed on the end face of the sealing lip. These V-grooves increase the elastic deformation capacity of the sealing lip, allowing it to better conform to the roller end face and improve the sealing effect. At the same time, the V-grooves also serve to store some lubricating oil, reducing friction between the roller and the sealing lip.

[0015] A wear-resistant ring is installed inside the V-groove: The wear-resistant ring rests against the end face of the roller within the V-groove. Made of a material with high wear resistance, the wear-resistant ring effectively reduces direct wear between the roller and the sealing lip, extending the service life of the sealing lip. For example, the wear-resistant ring acts like a "protective sleeve," protecting the sealing lip from excessive wear by the roller.

[0016] Wear-resistant ring positioning design: Several positioning grooves are provided on the end face of the sealing lip, and positioning blocks that fit into the corresponding positioning grooves are provided on the wear-resistant ring. The cooperation between the positioning blocks and the positioning grooves ensures the accurate installation and stable fixation of the wear-resistant ring on the sealing lip, preventing displacement of the wear-resistant ring during use and affecting the sealing effect.

[0017] Compared with existing technologies, the advantages of this utility model are: The dustproof roller shutter door motor chain of this utility model, through the setting of a reasonable sealing structure at the connection points of each component, effectively prevents dust and other impurities from entering the chain. This reduces wear between components, improves the chain's service life and operational stability, and ensures the normal use of the roller shutter door. Compared with existing technologies, it has better dustproof performance and a longer service life, reducing maintenance costs and usage risks. Attached Figure Description

[0018] Figure 1 This is a cross-sectional structural diagram of the present invention.

[0019] Figure 2 for Figure 1 A magnified view of a portion of the image.

[0020] Figure 3 This is a schematic diagram of the structure between the third sealing part and the inner chain plate of this utility model.

[0021] Figure 4 This is a schematic diagram of the structure between the sealing lip and the roller of this utility model.

[0022] Figure 5 for Figure 1 A magnified view of a portion at point A.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1-Pin; 2-Outer chain plate; 21-First mounting hole;

[0025] 3-First sealing element; 31-First sealing part; 32-Second sealing part; 33-Third sealing part; 331-Annular notch; 332-Sealing strip;

[0026] 4-Inner chain plate; 41-Second mounting hole;

[0027] 5-Second seal; 51-Sealing body; 52-Sealing lip; 521-V-groove; 522-Wear ring; 523-Positioning groove; 524-Positioning block;

[0028] 6-Roller;

[0029] 7-Sleeve;

[0030] 8-O type sealing ring. Detailed Implementation

[0031] refer to Figures 1 to 5 ,like Figure 1As shown, the dustproof roller shutter door motor chain of this embodiment aims to significantly improve the dustproof performance of the chain by optimizing the structural design and sealing configuration of each component, ensuring stable operation in harsh dusty environments, effectively extending the service life of the chain, and providing a solid guarantee for the reliable operation of the roller shutter door system.

[0032] like Figure 1 As shown, the pin 1 serves as the core support component of the chain, with two outer chain plates 2 mounted at each end. An O-ring seal 8 is carefully positioned between the pin 1 and the third mounting hole of each outer chain plate 2. The O-ring seal 8 is made of high-quality rubber material, possessing excellent elasticity and wear resistance. Its dimensions precisely match the diameter of the pin 1 and the size of the third mounting hole of the outer chain plate 2 to ensure a tight seal.

[0033] When the outer chain plate 2 is fixed to the pin 1 by a specific connection method (such as riveting or bolting), the O-ring seal 8 is squeezed and undergoes elastic deformation, tightly filling the gap between the pin 1 and the third mounting hole of the outer chain plate 2, forming a solid sealing barrier, effectively preventing dust and other impurities from entering the chain.

[0034] like Figure 1 , Figure 2 , Figure 3 The sleeve 7 is fitted onto the pin 1. A first sealing element 3 is cleverly positioned between the sleeve 7 and the outer chain plate 2. The first sealing element 3 consists of a first sealing part 31, a second sealing part 32, and a third sealing part 33, each performing a different sealing task. Two inner chain plates 4 are respectively installed at both ends of the sleeve 7 and tightly abut against the third sealing part 33.

[0035] The first sealing part 31 is tightly fitted around the outer circumference of the pin 1, located between the first mounting hole 21 of the outer link plate 2 and the end face of the sleeve 7, preventing dust from entering through the gap between the end face of the sleeve 7 and the pin 1. The second sealing part 32 is tightly accommodated within the first mounting hole 21 of the outer link plate 2, further enhancing the seal at the first mounting hole 21 of the outer link plate 2. The third sealing part 33 is located between the first mounting hole 21 and the inner link plate 4, preventing dust from intruding through the gap between the outer link plate 2 and the inner link plate 4. To improve the sealing effect, several annular notches 331 are also provided on the end face of the third sealing part 33, and sealing strips 332 are embedded in the annular notches 331, further enhancing the sealing performance by filling the tiny gaps.

[0036] like Figure 1 , Figure 2 and Figure 4

[0037] Roller 6 is fitted onto sleeve 7. A second seal 5 is provided between roller 6 and inner chain plate 4. The second seal 5 consists of a sealing body 51 and a sealing lip 52. The sealing body 51 is tightly accommodated in the second mounting hole 41 of inner chain plate 4 and fitted onto the outer periphery of sleeve 7; the sealing lip 52 is connected to the outside of sealing body 51 and abuts against the end face of roller 6.

[0038] The sealing body 51 provides a basic sealing function, preventing dust from entering through the gap between the sleeve 7 and the second mounting hole 41 of the inner chain plate 4; the sealing lip 52 fits tightly against the end face of the roller 6 through elastic deformation, further blocking dust.

[0039] To optimize the sealing effect and reduce wear, several V-grooves 521 are formed on the end face of the sealing lip 52, and wear-resistant rings 522 are installed in the V-grooves 521. The wear-resistant rings 522 are made of high-strength, wear-resistant polytetrafluoroethylene material, and their dimensions are precisely matched with the V-grooves 521, abutting against the end face of the roller 6, effectively reducing direct wear between the roller 6 and the sealing lip 52.

[0040] like Figure 4 and Figure 5 As shown, to ensure the stable installation of the wear-resistant ring 522, several positioning grooves 523 are formed on the end face of the sealing lip 52, and positioning blocks 524 that match the positioning grooves 523 are set on the wear-resistant ring 522. Through the precise cooperation between the positioning blocks 524 and the positioning grooves 523, the wear-resistant ring 522 can be accurately installed and firmly fixed on the sealing lip 52, preventing displacement during use and thus ensuring the durability of the sealing effect.

[0041] All seals and wear rings 522 are made of high-quality materials, possessing excellent elasticity and wear resistance. During manufacturing, dimensional accuracy and surface quality are strictly controlled to ensure a tight fit and good sealing between components. For example, the rubber material of the O-ring 8 undergoes special treatment to improve its elasticity and wear resistance; the PTFE material of the wear ring 522 undergoes precision machining to ensure dimensional accuracy and surface smoothness.

[0042] This chain operates stably even in dusty environments, with no abnormal wear or malfunctions observed in its internal components due to dust intrusion. Compared to traditional roller shutter door motor chains, the chain in this embodiment has a significantly longer service life and substantially reduced maintenance costs, effectively ensuring the normal operation of the roller shutter door system.

[0043] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A dustproof roller shutter door motor chain, characterized in that, include: Pin (1); Two outer chain plates (2) are respectively installed at both ends of the pin (1), and an O-ring seal (8) is installed between the outer chain plate (2) and the pin (1). A sleeve (7) is fitted onto the pin (1), and a first sealing element (3) is provided between the sleeve (7) and the outer chain plate (2). Two inner chain plates (4) are respectively installed at both ends of the sleeve (7) and abut against the first sealing element (3); A roller (6) is fitted onto the sleeve (7), and a second seal (5) is provided between the roller (6) and the inner chain plate (4).

2. The dustproof roller shutter door motor chain according to claim 1, characterized in that, The first seal (3) includes: The first sealing part (31) is sleeved on the outer periphery of the pin (1) and located between the first mounting hole (21) of the outer chain plate (2) and the end face of the sleeve (7); The second sealing part (32) is connected to the outer periphery of the first sealing part (31) and is accommodated in the first mounting hole (21); The third sealing part (33) is connected to the second sealing part (32) and is located between the first mounting hole (21) and the inner chain plate (4).

3. The dustproof roller shutter door motor chain according to claim 2, characterized in that, The end face of the third sealing part (33) is provided with a plurality of annular notches (331), and a sealing strip (332) is embedded in the annular notches (331).

4. The dustproof roller shutter door motor chain according to claim 1, characterized in that, The second seal (5) includes: The sealing body (51) is fitted around the outer periphery of the sleeve (7) and accommodated in the second mounting hole (41) of the inner chain plate (4); The sealing lip (52) is connected to the outside of the sealing body (51) and abuts against the end face of the roller (6).

5. The dustproof roller shutter door motor chain according to claim 4, characterized in that, The end face of the sealing lip (52) is provided with several V-shaped grooves (521).

6. The dustproof roller shutter door motor chain according to claim 5, characterized in that, The V-groove (521) is provided with a wear-resistant ring (522), which abuts against the end face of the roller (6).

7. The dustproof roller shutter door motor chain according to claim 6, characterized in that, The sealing lip (52) has a positioning groove (523) on its end face, and the wear-resistant ring (522) has a positioning block (524) that is adapted to the positioning groove (523).

8. The dustproof roller shutter door motor chain according to claim 6, characterized in that, The end face of the sealing lip (52) is provided with a plurality of positioning grooves (523), and the wear-resistant ring (522) is provided with positioning blocks (524) that are adapted to the corresponding positioning grooves (523).

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