High-stability chain

Abstract

The utility model discloses a high-stability chain, which belongs to the field of chain transmission, and comprises a chain and a chain wheel which are in transmission connection with each other, the chain comprises an outer plate and an inner plate which are connected through a bolt, the outer plate is fixedly connected with a limiting mechanism, the limiting mechanism comprises a limiting plate, the limiting plate is provided with a mounting hole, and the inner plate is fixedly connected with the limiting plate. The installation hole and the plug pin are coaxially arranged, when the chain is meshed with the chain wheel, part of the projection plane of the limiting plate always falls into the chain wheel, by installing the limiting mechanism on the chain, when the chain is about to fall off, the limiting plate can abut against the chain wheel so as to limit displacement of the chain, and the probability that the chain falls off is reduced.

Description

Technical Field

[0001] The utility model discloses a high-stability chain and belongs to the field of chain transmission. Background Art

[0002] The transmission is a transmission method that transmits the movement and power of the driving sprocket with special tooth shape to the driven sprocket with special tooth shape through a chain. It has the advantages of accurate transmission ratio, reliable operation and high efficiency.

[0003] The reason why the chain of existing chain-driven bicycles falls off is usually because the chain is not tight enough during long-term use. When passing through bumpy roads, the vibration of the vehicle causes the chain to vibrate and produce misalignment displacement in different directions, eventually causing the chain to detach from the sprocket and get stuck between the sprocket and the wheel, which is difficult to repair.

[0004] In view of the above problems, a new improvement plan is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a high stability chain in order to solve the above problems.

[0006] The utility model achieves the above-mentioned purpose through the following technical scheme: a high-stability chain, including a chain and a sprocket that are connected to each other in a transmission manner, the chain including an outer plate and an inner plate and connected by a pin, the outer plate is fixedly connected to a limiting mechanism, the limiting mechanism includes a limiting plate, a mounting hole is opened on the limiting plate, the mounting hole is coaxially arranged with the pin, and when the chain is engaged with the sprocket, part of the projection surface of the limiting plate always falls into the sprocket.

[0007] Preferably, the limiting mechanism also includes an abutment assembly, which includes a shell and an abutment ball. The abutment ball is rollingly installed in the shell. The shell is fixedly connected to the limiting plate, and both ends of the abutment ball respectively make point contact with the limiting plate and the sprocket surface.

[0008] Preferably, the side wall of the shell is provided with a plurality of notches penetrating the shell.

[0009] Preferably, a limiting rope is fixedly installed on the bottom of the limiting plate.

[0010] Preferably, the limiting mechanisms are symmetrically arranged on both sides of the chain.

[0011] Preferably, the limiting mechanisms are arranged at intervals on each outer plate of the chain.

[0012] Preferably, the limiting rope is made of metal and is welded to the limiting plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. By installing a limit mechanism on the outer plate of the chain that can abut against the surface of the sprocket, the chain can be effectively limited from moving left and right and falling off the sprocket without affecting the transmission.

[0015] 2. A limit rope is installed on the limit plate in the limit mechanism. When the chain is inevitably misplaced, the limit rope has a chance to hang on the sprocket teeth, thereby preventing the entire chain from falling off and facilitating subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the chain and sprocket transmission structure of a high-stability chain of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection between a part of the chain and the sprocket of a high stability chain of the utility model;

[0018] Figure 3 The utility model is a high stability chain Figure 2 A-axis cross-sectional structural diagram;

[0019] Figure 4 The utility model is a high stability chain Figure 3 The enlarged structural diagram at B in the middle;

[0020] Figure 5 The utility model is a schematic diagram of the limit mechanism structure of a high-stability chain.

[0021] Figure numerals: 1, chain; 2, sprocket; 3, outer plate; 4, inner plate; 5, latch; 6, limiting mechanism; 7, limiting plate; 8, mounting hole; 9, housing; 10, abutment ball; 11, notch; 12, limiting rope. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] like Figure 1 , Figure 2 As shown, a high stability chain includes a chain 1 and a sprocket 2 which are connected to each other in a transmission manner. The chain 1 includes an outer plate 3 and an inner plate 4 which are connected by a latch 5. The other accessories of the chain 1, such as bushings, rollers, etc., are common knowledge in the field and are not introduced here. A limiting mechanism 6 is fixedly connected to the outer plate 3. The limiting mechanism 6 includes a limiting plate 7. A mounting hole 8 is opened on the limiting plate 7. The mounting hole 8 is coaxially arranged with the latch 5. This design can ensure that the limiting plate 7 can be stably transmitted on the sprocket 2 along with the outer plate 3 of the chain 1. When the chain 1 is meshed with the sprocket 2, part of the projection surface of the limiting plate 7 always falls into the sprocket 2. Since part of the projection surface of the limiting plate 7 always falls into the sprocket 2, refer to Figure 2 As shown, when the chain 1 shakes and is about to displace and slide along the thickness direction of the sprocket 2, due to the presence of the limit plate 7, when the chain 1 is about to displace, it will be restricted because of the abutment contact between the limit plate 7 and the sprocket 2, thereby preventing the chain 1 from falling off the sprocket 2 directly.

[0024] For example Figure 2 , Figure 3 and Figure 4 As shown, the limiting mechanism 6 also includes an abutment component, which includes a shell 9 and an abutment ball 10. The abutment ball 10 is rollingly installed in the shell 9. The shell 9 is fixedly connected to the limiting plate 7. The two ends of the abutment ball 10 respectively make point contacts with the limiting plate 7 and the surface of the sprocket 2. By setting the abutment component, during the transmission of the chain 1 and the sprocket 2, the abutment component is always in contact with the surface of the sprocket 2, thereby constantly limiting the displacement of the chain 1 along the thickness direction of the sprocket 2 and maintaining the transmission stability of the chain 1 and the sprocket 2. The abutment ball 10 is rollingly installed in the shell 9. Therefore, during the continuous transmission of the chain 1, the abutment ball 10 will roll on the surface of the sprocket 2, thereby reducing the transmission friction caused by the setting of the limiting mechanism 6.

[0025] Reference Figure 5 As shown, the side wall of the shell 9 of the product is provided with a plurality of notches 11 penetrating the shell 9. By providing the notches 11, when the abutment ball 10 is placed in the shell 9, part of the abutment ball 10 can be exposed to the outside of the notches 11, and it is also convenient to install the abutment ball 10 in the shell 9, and then fix the shell 9 to the abutment plate to form a positioning.

[0026] A limiting rope 12 is fixedly installed at the bottom of the limiting plate 7 of this product. When the chain 1 inevitably jumps with a high amplitude and disengages from the sprocket 2, the limiting rope 12 has a chance to hook the teeth of the sprocket 2 so that the chain 1 is hung on the sprocket 2, instead of falling directly between the sprocket 2 and the wheel, making it difficult for maintenance personnel to pick it out, thereby facilitating temporary maintenance when the chain suddenly falls off during riding.

[0027] The limiting mechanism 6 of this product is symmetrically arranged on both sides of the chain 1. This design allows the limiting mechanism 6 to simultaneously limit the displacement of both sides of the chain 1, so that it is always in the middle position during transmission, thereby improving transmission stability. The limiting mechanism 6 is arranged at intervals on each outer plate 3 of the chain 1. Figure 1 The spacing limiting mechanisms 6 can reduce the overall weight of the chain 1 while satisfying the limiting effect.

[0028] Finally, the limit rope 12 is made of metal and welded to the limit plate 7. The metal limit rope 12 will not break when hooking the sprocket 2, thereby improving the reliability of the mechanism when it is triggered.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high stability chain, comprising a chain and a sprocket connected to each other, wherein the chain comprises an outer plate and an inner plate connected by a latch, characterized in that: The outer plate is fixedly connected to a limiting mechanism, which includes a limiting plate. The limiting plate is provided with a mounting hole, and the mounting hole is coaxially arranged with the latch. When the chain is engaged with the sprocket, part of the projection surface of the limiting plate always falls into the sprocket.

2. A high stability chain according to claim 1, characterized in that: The limiting mechanism also includes an abutment component, which includes a shell and an abutment ball. The abutment ball is rollingly installed in the shell. The shell is fixedly connected to the limiting plate. The two ends of the abutment ball respectively generate point contact with the limiting plate and the sprocket surface.

3. A high stability chain according to claim 2, characterized in that: The side wall of the shell is provided with a plurality of notches penetrating the shell.

4. A high stability chain according to claim 3, characterized in that: A limiting rope is fixedly installed at the bottom of the limiting plate.

5. A high stability chain according to claim 4, characterized in that: The limiting mechanisms are symmetrically arranged on both sides of the chain.

6. A high stability chain according to claim 1, characterized in that: The limiting mechanisms are arranged at intervals on each outer plate of the chain.

7. A high stability chain according to claim 4, characterized in that: The limiting rope is made of metal and is welded to the limiting plate.

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