Combined chain with quick splicing function

By incorporating detachable connecting plates and bolt-nut structures on the chain, combined with cross-laid outer and inner chain plates and a ball lubrication system, the problems of inconvenient chain disassembly and easy breakage are solved, achieving the effects of rapid splicing and extended service life.

CN223725295UActive Publication Date: 2025-12-26YANGZHOU YONGXING CHAIN TRANSMISSION CO LTD
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Patent Information

Application Number
CN202520570444.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2025-12-26
Estimated Expiration
2035-03-28

AI Technical Summary

Technical Problem

Existing chains are inconvenient to disassemble and splice when used at fixed lengths, and are prone to breaking after prolonged use, affecting their service life.

Method used

A modular chain with quick assembly function was designed. A detachable connecting plate is set at one end of the pin and fastened with bolts and nuts. The outer chain plate and the inner chain plate are arranged in a cross pattern. The inner chain plate is equipped with rollers and sleeves for oil storage. The ball bearings control the distribution of lubricating oil. The sleeve is equipped with reinforcing ribs to enhance rigidity and is coated with epoxy zinc-rich primer for rust prevention.

Benefits of technology

It enables rapid splicing and disassembly of the chain, extends its service life, avoids wear and corrosion of the sleeve caused by excessive friction, and improves installation efficiency and corrosion resistance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223725295U_ABST
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Abstract

The combined type chain with the rapid splicing function comprises a connecting pin shaft, outer chain plates are connected to the positions, close to the two sides, of the outer wall of the connecting pin shaft in a sleeved mode, and a pin hole is formed in the position, close to the bottom, of the outer wall of the connecting pin shaft. According to the device, the detachable connecting plate is arranged at one end of the pin, the bolt and the nut are matched on the connecting plate for fastening, the connecting plate is used for preventing the connecting pin from moving and rotating, axial moving and rotating of the pin can be limited, and when the pin tends to rotate in the radial direction, thrust from the pin is transmitted to the bolt, so that the pin can rotate in the radial direction. The bolt limits radial rotation of the pin and eliminates rotation after the pin is installed, the structure is simple, operation is convenient, the installation efficiency can be effectively improved, the length of the chain can be conveniently increased, the connecting pin shaft can be conveniently and rapidly detached, and therefore the chain can be rapidly spliced, the surface of the connecting pin shaft is smooth due to the arrangement of lubricating oil, and the service life of the chain is prolonged. And the connecting pin shafts can be conveniently taken down from the interiors of the outer chain plates and the inner chain plates.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to chain technical field, concretely relates to a combined chain with quick splicing function. BACKGROUND

[0002] Chain is generally metal chain ring or ring, is used for mechanical transmission, traction, chain-shaped object for obstructing traffic passage, such as usually setting in the street, river or harbor entrance, mechanical transmission chain, in similar products, according to the basic structure of the chain, that is, according to the element shape, the parts and parts of chain engagement and the proportion of the size between parts, the chain product series is divided, there are many types of chains, but their basic structure only has the following several, other is the deformation of these several, we can see from the above several chain structures that most chains are composed of chain plate, pin, shaft sleeve and other components, other types of chain only make different changes to the chain plate according to different requirements, some install scraper on the chain plate, some install guide bearing on the chain plate, and some install roller on the chain plate and so on, these are all for modification in different application occasions.

[0003] The existing problems of the prior art are as follows:

[0004] 1. The existing chain on the market has a fixed length, and the pin shaft needs to be ground flat at both ends before disassembly, which is inconvenient for timely installation and splicing during use.

[0005] 2. The existing chain on the market is often subjected to stress during work, which causes the chain to break after long-term use, reducing the service life of the chain. UTILITY MODEL CONTENTS

[0006] The utility model aims at the existing device, a combined chain with quick splicing function, to solve the problems in the background art.

[0007] In order to solve the above technical problems, the utility model provides the following technical scheme: a combined chain with quick splicing function, comprising a connecting pin shaft, the outer wall of the connecting pin shaft is sleeved with an outer chain plate near both sides, a pin hole is formed in the outer wall of the connecting pin shaft near the bottom, a pin is movably connected in the pin hole, and a pull ring is fixedly connected to one side end face of the pin.

[0008] The side away from the pull ring of the pin is provided with a connecting plate, the outer surface of the connecting plate is provided with a mounting hole, the side away from the pull ring of the pin penetrates through the mounting hole and is connected with the connecting plate, the inner surface of the connecting plate is screw-connected with a bolt, one side of the connecting plate is provided with a nut, and the bolt penetrates through the connecting plate and the connecting pin shaft and is screw-connected with the nut.

[0009] The utility model further illustrates, the inside of outer chain board is provided with inner chain board, the vertical midline of outer chain board is symmetrically arranged with the inner chain board as the symmetry axis, and the outer chain board and the inner chain board are cross arranged.

[0010] Adopt above-mentioned technical scheme, the outer chain board and the inner chain board of this scheme cross arrangement, thereby constitute a complete chain.

[0011] The utility model further illustrates, the inside of inner chain board is provided with the roller, the inside of roller is provided with the sleeve, the inside of sleeve is provided with the oil storage cavity.

[0012] Adopt above-mentioned technical scheme, the inside of this scheme is stored by oil storage cavity.

[0013] The utility model further illustrates, the inside surface of sleeve is provided with through -hole, and the number of through -hole is multiple and multiple through -hole is 360 ° around setting, the inside surface of through -hole is movably installed with the ball.

[0014] Adopt above-mentioned technical scheme, this scheme can be convenient for personnel to automatically smear lubricating oil on the surface of connecting pin shaft after installation by the oil amount of lubricating oil controlled by ball, avoids manual operation, makes smearing more uniform, further guarantees the existence of lubricating oil when connecting pin shaft and sleeve inner wall contact and avoids that the sleeve is abraded due to excessive friction, further prolongs the service life of sleeve, and when connecting pin shaft is disassembled, the surface of connecting pin shaft is smooth due to the setting of lubricating oil, which facilitates the removal of connecting pin shaft from the inside of outer chain board and inner chain board.

[0015] The utility model further illustrates, the top side of sleeve is provided with oil injection groove, and the inside surface of outer chain board and inner chain board is provided with mounting groove.

[0016] Adopt above-mentioned technical scheme, the inside of this scheme is injected by oil injection groove to oil storage cavity.

[0017] The utility model further illustrates, the inside surface of mounting groove is fixedly connected with the reinforcing rib, and the outer wall of outer chain board is provided with rustproof layer.

[0018] Adopt above-mentioned technical scheme, the reinforcing rib arranged in the inside of mounting groove can enhance the strength and rigidity of outer chain board and inner chain board, avoid the distortion of outer chain board and inner chain board caused by uneven stress, greatly improve the service life of chain, make the chain not easy to break, and the rustproof layer is formed by spraying epoxy zinc-rich primer, so that the entire outer chain board has good corrosion resistance.

[0019] Compared with the prior art, the utility model has the advantages of:

[0020] The utility model provides a combined chain with quick splicing function, and through the setting, the setting reinforcing rib in the mounting groove can enhance the strength and rigidity of the outer chain plate and the inner chain plate, avoid the distortion of the outer chain plate and the inner chain plate caused by uneven stress, greatly improve the service life of the chain, make the chain not easy to break, the rustproof layer is formed by spraying epoxy zinc-rich primer, make the whole outer chain plate have good corrosion resistance, the oil amount of lubricating oil can be controlled through the ball, personnel can automatically smear lubricating oil on the surface of the connecting pin shaft after installation, avoid manual operation, make smearing more uniform, further ensure that the connecting pin shaft and the sleeve inner wall always keep the existence of lubricating oil when being contacted to avoid excessive friction force leading to the abrasion of the sleeve, further prolong the service life of the sleeve, prevent the outer surface of the connecting pin shaft from rusting, prolong the service life of the chain, satisfy the use demand of the user.

[0021] The utility model provides a combined chain with quick splicing function, and through the setting, the setting reinforcing rib in the mounting groove can enhance the strength and rigidity of the outer chain plate and the inner chain plate, avoid the distortion of the outer chain plate and the inner chain plate caused by uneven stress, greatly improve the service life of the chain, make the chain not easy to break, the rustproof layer is formed by spraying epoxy zinc-rich primer, make the whole outer chain plate have good corrosion resistance, the oil amount of lubricating oil can be controlled through the ball, personnel can automatically smear lubricating oil on the surface of the connecting pin shaft after installation, avoid manual operation, make smearing more uniform, further ensure that the connecting pin shaft and the sleeve inner wall always keep the existence of lubricating oil when being contacted to avoid excessive friction force leading to the abrasion of the sleeve, further prolong the service life of the sleeve, prevent the outer surface of the connecting pin shaft from rusting, prolong the service life of the chain, satisfy the use demand of the user. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0023] Figure 1 It is the whole structure schematic diagram of the utility model;

[0024] Figure 2 It is the overhead structure schematic diagram of the utility model;

[0025] Figure 3 It is the side structure schematic diagram of the utility model;

[0026] Figure 4 It is the local section structure schematic diagram of the utility model;

[0027] Figure 5 It is the three -dimensional assembly structure schematic diagram of the utility model.

[0028] Figure: 1, the outer link plate; 2, connecting pin shaft; 3, pin hole; 4, pin; 5, pull ring; 6, connecting plate; 7, mounting hole; 8, bolt; 9, nut; 10, inner link plate; 11, roller; 12, sleeve; 13, oil storage cavity; 14, ball; 15, oil injection groove; 16, mounting groove; 17, reinforcing rib; 18, anti-rust layer. DETAILED DESCRIPTION

[0029] The following will be further non-restricting detailed description of the technical scheme of the utility model in combination with the preferred embodiments and its drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0030] Please refer to Figures 1-5 The utility model provides technical scheme: a combined chain with quick splicing function, connecting pin shaft 2, the outer wall of connecting pin shaft 2 is close to both sides and is sleeved with outer link plate 1, the outer wall of connecting pin shaft 2 is close to the bottom and is provided with pin hole 3, pin hole 3 is movably connected with pin 4 in the inside, and the side end surface of pin 4 is fixedly connected with pull ring 5.

[0031] Pin 4 is provided with connecting plate 6 away from pull ring 5, mounting hole 7 is formed in the outer surface of connecting plate 6, pin 4 is away from pull ring 5 and is penetrated mounting hole 7 and is connected with connecting plate 6, the inside surface of connecting plate 6 is screw threaded with bolt 8, and one side of connecting plate 6 is provided with nut 9, and bolt 8 is penetrated connecting plate 6 and connecting pin shaft 2 and is screw threaded with nut 9.

[0032] In the embodiment, the cooperation of connecting pin shaft 2, pin hole 3, pull ring 5, connecting plate 6, mounting hole 7, bolt 8 and nut 9, by setting detachable connecting plate 6 on one end of pin 4, the cooperation of bolt 8 and nut 9 on connecting plate 6 is fastened, which is used to prevent the movement and rotation of connecting pin 4, can limit the axial movement and rotation of pin 4, when pin 4 has the tendency of radial rotation, the thrust from pin 4 is transmitted to bolt 8, bolt 8 limits the radial rotation of pin 4, eliminates the rotation after installing pin 4, and the structure is simple, convenient to operate, and can effectively improve the installation efficiency, and it is convenient to increase the length of chain, quickly dismounts connecting pin shaft 2, so that the chain can be spliced quickly.

[0033] As Figures 1-5As shown, on the basis of example 1, the utility model provides a technical scheme: preferably, the inside of outer chain plate 1 is provided with inner chain plate 10, inner chain plate 10 is provided with the vertical midline of outer chain plate 1 as the axis of symmetry and is symmetrically arranged, and outer chain plate 1 and inner chain plate 10 are cross arranged, the inside of inner chain plate 10 is provided with roller 11, the inside of roller 11 is provided with sleeve 12, sleeve 12 is provided with oil storage cavity 13 in the inside, the inside surface of sleeve 12 is provided with through hole, and the number of through hole is multiple and multiple through holes are arranged in 360 ° around, the inside surface of through hole is movably installed with ball 14.

[0034] In the embodiment, outer chain plate 1 and inner chain plate 10 are cross arranged, thereby forming a complete chain, the inside is stored with oil through oil storage cavity 13, the oil amount of lubricating oil is controlled through ball 14, personnel can automatically smear lubricating oil on the surface of connecting pin shaft 2 after installation, manual operation of personnel is avoided, smearing is more uniform, thereby guaranteeing that lubricating oil always exists when connecting pin shaft 2 and sleeve 12 inner wall contact, and friction force is avoided to be too large to cause sleeve 12 to be abraded, further prolonging the service life of sleeve 12, and when connecting pin shaft 2 is disassembled, the surface of connecting pin shaft 2 is smooth due to the arrangement of lubricating oil, and connecting pin shaft 2 is conveniently taken out from the inside of outer chain plate 1 and inner chain plate 10.

[0035] As shown in the figure, Figures 1-5 As shown, on the basis of example 1, the utility model provides a technical scheme: preferably, the inside of outer chain plate 1 is provided with inner chain plate 10, inner chain plate 10 is provided with the vertical midline of outer chain plate 1 as the axis of symmetry and is symmetrically arranged, and outer chain plate 1 and inner chain plate 10 are cross arranged, the inside of inner chain plate 10 is provided with roller 11, the inside of roller 11 is provided with sleeve 12, sleeve 12 is provided with oil storage cavity 13 in the inside, the inside surface of sleeve 12 is provided with through hole, and the number of through hole is multiple and multiple through holes are arranged in 360 ° around, the inside surface of through hole is movably installed with ball 14.

[0036] In the embodiment, the inside of oil storage cavity 13 is injected with oil through oil injection groove 15, the strength and rigidity of outer chain plate 1 and inner chain plate 10 can be enhanced through the arrangement of reinforcing rib 17 in the inside of installation groove 16, outer chain plate 1 and inner chain plate 10 are avoided to be twisted and deformed due to uneven stress, the service life of chain is greatly improved, the chain is not easy to break, and the anticorrosive layer 18 is formed by spraying epoxy zinc-rich primer, so that the entire outer chain plate 1 has good corrosion resistance.

[0037] As shown in the figure, Figures 1-5As shown, when the user needs to use it, the cooperation of the connecting pin shaft 2, the pin hole 3, the pull ring 5, the connecting plate 6, the mounting hole 7, the bolt 8 and the nut 9 is achieved by detachably connecting the connecting plate 6 on one end of the pin 4, and the bolt 8 and the nut 9 on the connecting plate 6 are fastened to prevent the connecting pin 4 from moving and rotating, and the axial movement and rotation of the pin 4 are limited, the thrust from the pin 4 is transmitted to the bolt 8 when the pin 4 has a tendency to rotate radially, the bolt 8 limits the radial rotation of the pin 4, eliminates the rotation after the pin 4 is installed, and the structure is simple, the operation is convenient, and the installation efficiency can be effectively improved, the connecting pin shaft 2 can be quickly disassembled when the length of the chain is increased, the chain can be quickly spliced, the surface of the connecting pin shaft 2 is smooth due to the setting of the lubricating oil when the connecting pin shaft 2 is disassembled, the connecting pin shaft 2 can be easily taken out from the inside of the outer chain plate 1 and the inner chain plate 10, the strength and rigidity of the outer chain plate 1 and the inner chain plate 10 are enhanced through the reinforcing ribs 17 arranged in the inside of the mounting groove 16, the outer chain plate 1 and the inner chain plate 10 are prevented from being twisted and deformed due to uneven stress, the service life of the chain is greatly improved, the chain is not easy to break, the anti-rust layer 18 is formed by spraying an epoxy zinc-rich primer, the corrosion resistance of the entire outer chain plate 1 is good, the amount of lubricating oil is controlled by the ball 14, personnel can automatically apply lubricating oil to the surface of the connecting pin shaft 2 after installation, manual operation is avoided, the application is more uniform, the existence of lubricating oil is ensured when the connecting pin shaft 2 contacts the inner wall of the sleeve 12 to avoid excessive friction force causing the sleeve 12 to wear, the service life of the sleeve 12 is further prolonged, and rust is prevented from occurring on the outer surface of the connecting pin shaft 2, thereby prolonging the service life of the chain.

[0038] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore cannot be understood as a limitation on the present application.

[0039] Finally, it should be pointed out that: the above examples are only used to illustrate the technical solutions of the present application, and are not limited thereto. Although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalents, and these modifications or replacements do not change the essence of the corresponding technical solutions beyond the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A modular chain with quick coupling function comprising a connecting pin (2), characterized in that: The outer wall of the connecting pin shaft (2) is sleeved with outer chain plates (1) near both sides, the outer wall of the connecting pin shaft (2) is provided with a pin hole (3) near the bottom, the inside of the pin hole (3) is movably connected with a pin (4), the side end face of the pin (4) is fixedly connected with a pull ring (5). The side, away from the pull ring (5), of the pin (4) is provided with a connecting plate (6), the outer surface of the connecting plate (6) is provided with a mounting hole (7), the side, away from the pull ring (5), of the pin (4) penetrates through the mounting hole (7) and connects with the connecting plate (6), the inside surface of the connecting plate (6) is screw-connected with a bolt (8), one side of the connecting plate (6) is provided with a nut (9), the bolt (8) penetrates through the connecting plate (6) and the connecting pin shaft (2) and is screw-connected with the nut (9).

2. The combined chain with the function of fast splicing according to claim 1, characterized in that: The inside of the outer chain plate (1) is provided with an inner chain plate (10), the inner chain plate (10) is symmetrically arranged with the vertical center line of the outer chain plate (1) as the axis of symmetry, and the outer chain plate (1) and the inner chain plate (10) are cross arranged.

3. The combined chain with the function of fast splicing according to claim 2, characterized in that: The inside of the inner chain plate (10) is provided with a roller (11), the inside of the roller (11) is provided with a sleeve (12), the inside of the sleeve (12) is provided with an oil storage cavity (13).

4. The combined chain with the function of fast splicing according to claim 3, characterized in that: The inside surface of the sleeve (12) is provided with a plurality of through holes which are arranged in a 360° ring, and the inside surface of the through hole is movably mounted with a ball (14).

5. The combination chain with quick splicing function according to claim 3, characterized in that: The top side of the sleeve (12) is provided with an oil injection groove (15), and the inside surface of the outer chain plate (1) and the inner chain plate (10) is provided with a mounting groove (16).

6. The modular chain with quick splicing function according to claim 5, characterized in that: The inside surface of the mounting groove (16) is fixedly connected with a reinforcing rib (17), and the outer wall of the outer chain plate (1) is provided with an anti-rust layer (18).