Chain with length convenient to adjust

Abstract

The utility model relates to the field of chains, in particular to a chain convenient to adjust length, which comprises an outer chain plate, the outer chain plate comprises a containing end and a telescopic end, the containing end and the telescopic end are connected in a sliding mode, a plurality of limiting holes are formed in the telescopic end at equal intervals, a fixing bolt is fixedly arranged on the containing end, and the fixing bolt and the limiting holes are used in a matched mode. The maximum moving distance of the telescopic end in the containing end is 5 cm, inner chain plates are connected to the inner sides of the outer chain plates, the outer chain plates and the inner chain plates jointly form a complete chain, the outer chain plates and the inner chain plates are alternately and symmetrically installed and alternately installed to form the complete chain, through holes are formed in the two sides of the outer chain plates and the two sides of the inner chain plates, and the outer chain plates and the inner chain plates are connected through the through holes. When the length of the chain needs to be adjusted, the length of the outer chain plate is adjusted by adjusting the position of the telescopic end in the containing end, the limiting hole in the telescopic end is fixed through the fixing bolt, and the length of the chain can be conveniently and rapidly adjusted.

Description

Technical Field

[0001] This utility model relates to the field of chains, and in particular to a chain whose length is easy to adjust. Background Technology

[0002] Chains are generally metal links or rings, mostly used for mechanical transmission and traction. They can also be used as chain-like objects to obstruct traffic (such as in streets, river or harbor entrances), or as chains used for mechanical transmission.

[0003] When adjusting the length of a chain, it is usually done by removing a link to shorten the overall length. However, after prolonged use, wear and tear can cause changes in the chain tension, making it impossible to make precise adjustments by removing a link. This requires further adjustments to the links or clasps, which significantly impacts work progress. Furthermore, an improperly lengthed chain can pose safety hazards.

[0004] The technical problem this application aims to solve is: how to conveniently and quickly adjust the length of the chain. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a chain with an adjustable length.

[0006] The technical solution adopted by this utility model is as follows: a chain that is easy to adjust in length, including an outer chain plate, the outer chain plate including a receiving end and a telescopic end, the receiving end and the telescopic end being slidably connected, the telescopic end having a plurality of limiting holes equidistantly opened, the receiving end having a fixing bolt fixedly opened, and the fixing bolt and the limiting holes being used in conjunction.

[0007] When the chain length needs to be adjusted, slide the telescopic rod to its position inside the receiving end, and then use the fixing bolt to fix the limiting hole on the telescopic end, so as to fix the length of the outer chain plate.

[0008] In some implementations, the telescopic end has a maximum range of motion of 5 cm within the receiving end, allowing for fine-tuning of the chain length within this range.

[0009] In some embodiments, an inner chain plate is connected to the inner side of the outer chain plate, and the outer chain plate and the inner chain plate together form a complete chain. Several outer chain plates and inner chain plates are installed alternately and symmetrically to form a complete chain.

[0010] In some embodiments, through holes are provided on both sides of the outer and inner chain plates, and connecting rods are installed through the through holes to fix the outer and inner chain plates on both sides. The through holes facilitate the fixing of the outer and inner chain plates.

[0011] In some embodiments, a fixing block is provided at one end of the connecting rod, and a threaded post is fixedly installed at the other end of the connecting rod. The connecting block is rotatably installed on the outside of the threaded post. The tops of the fixing block and the connecting block are located on the outside of the outer chain plate, which facilitates the fixing of the chain plates on both sides to form a chain.

[0012] In some embodiments, a positioning ring groove is fixedly provided on the side of the connecting rod near the threaded post. The positioning ring groove is installed inside the through hole to facilitate the rotation of the connecting rod during chain use.

[0013] In some embodiments, an oil storage tank is provided inside the outer link plate, and an oil inlet is provided on the outer wall of the outer link plate, which increases the oil storage capacity of the connecting plate and facilitates the addition of lubricating oil.

[0014] In some implementations, an oil-absorbing cotton is installed on the outside of the oil inlet to prevent lubricating oil from overflowing through the oil inlet during use.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1) In this utility model, the outer chain plate is composed of a receiving end and a telescopic end. When the length needs to be adjusted, the telescopic end moves within the receiving end, and then the limiting hole of the receiving end is fixed by a fixing bolt, which makes it convenient to adjust the length of the chain at any time.

[0017] 2) In this utility model, the maximum moving distance of the telescopic end within the receiving end is 5cm, which facilitates fine-tuning of the chain length. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a chain with adjustable length according to the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the receiving end of this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the connecting rod of this utility model.

[0021] In the diagram: 1. Outer chain plate; 2. Receiving end; 3. Telescopic end; 4. Limiting hole; 5. Fixing bolt; 6. Inner chain plate; 7. Through hole; 8. Connecting rod; 9. Fixing block; 10. Threaded post; 11. Connecting block; 12. Positioning ring groove; 13. Oil inlet; 14. Oil-absorbing cotton. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1 to 2 This utility model provides a technical solution: a chain with adjustable length, including an outer chain plate 1, which includes a receiving end 2 and a telescopic end 3. The receiving end 2 and the telescopic end 3 are slidably connected to each other to facilitate adjustment of the length of the outer chain plate 1. The telescopic end 3 is provided with a plurality of limiting holes 4 at equal intervals to facilitate fixing telescopic ends 3 of different lengths. The receiving end 2 is provided with a fixing bolt 5 to facilitate fixing the limiting holes 4. The fixing bolt 5 and the limiting holes 4 are used in conjunction. An inner chain plate 6 is connected to the inner side of the outer chain plate 1. A plurality of outer chain plates 1 and inner chain plates 6 are installed alternately and symmetrically. Through holes 7 are provided on both sides of the outer chain plate 1 and the inner chain plate 6. A connecting rod 8 is installed through the through hole 7 to fix the outer chain plate 1 and the inner chain plate 6 on both sides, so as to facilitate fixing the outer chain plate 1 and the inner chain plate 6.

[0024] Please see Figure 3 A fixing block 9 is provided at one end of the connecting rod 8, and a threaded post 10 is fixedly installed at the other end of the connecting rod 8. A connecting block 11 is rotatably installed on the outside of the threaded post 10 to fix the connecting rod 8. The tops of the fixing block 9 and the connecting block 11 are both located on the outside of the outer chain plate 1. A positioning ring groove 12 is fixedly provided on the side of the connecting rod 8 near the threaded post 10. The positioning ring groove 12 is installed inside the through hole 7 to facilitate the rotation of the connecting rod 8. An oil storage tank is provided inside the outer chain plate 1 to increase the amount of lubricating oil stored in the connecting rod 8. An oil inlet 13 is provided on the outer wall of the outer chain plate 1 to facilitate the addition of lubricating oil. An oil-absorbing cotton 14 is installed on the outside of the oil inlet 13 to prevent the lubricating oil from overflowing through the oil-absorbing cotton 14 when rotating.

[0025] The working principle and usage process of this utility model are as follows: When it is necessary to adjust the length of the chain, firstly, pull the fixing bolt 5 out of the limiting hole 4, and then adjust the position of the telescopic end 3 in the receiving end 2. After determining the position, re-fix the fixing bolt 5 to fix the limiting hole 4, thereby clarifying the length of the outer chain plate 1, which facilitates the adjustment of the chain length. The maximum movement distance of the telescopic end 3 in the receiving end 2 is 5cm, which facilitates fine-tuning of the chain length. Several outer chain plates 1 and inner chain plates 6 are alternately and symmetrically installed to form a complete chain. Through holes 7 are opened on both sides of the outer chain plate 1 and the inner chain plate 6. A connecting rod 8 is installed through the through hole 7 to fix the outer chain plate 1 and the inner chain plate 6 on both sides. The chain plate 1 and inner chain plate 6 are connected by a fixing block 9 fixedly installed at one end of the connecting rod 8. The fixing block 9 is located on the outside of the outer chain plate 1. The connecting rod 8 has a positioning ring groove 12, which is installed inside the through hole 7 to facilitate the rotation of the connecting rod 8. The end of the connecting rod 8 away from the fixing block 9 has a threaded post 10, which extends to the outside of the outer chain plate 1 and is fixed by the connecting block 11. The connecting rod 8 has an oil inlet 13 to facilitate the addition of lubricating oil. An oil storage tank is installed in the oil inlet 13 to increase the oil storage capacity of the connecting rod 8. An oil-absorbing cotton 14 is installed on the oil inlet 13 to reduce the overflow of lubricating oil through the oil inlet 13 when the chain rotates.

[0026] Finally, it should be noted that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A chain with adjustable length, comprising an outer chain plate (1), characterized in that, The outer chain plate (1) includes a receiving end (2) and a telescopic end (3), which are slidably connected. The telescopic end (3) has several limiting holes (4) equidistantly arranged on it. The receiving end (2) has a fixing bolt (5) fixedly arranged on it. The fixing bolt (5) and the limiting holes (4) are used together.

2. The chain with adjustable length according to claim 1, characterized in that, The maximum range of motion of the telescopic end (3) within the receiving end is 5cm.

3. The chain with adjustable length according to claim 1, characterized in that, The inner side of the outer chain plate (1) is connected to the inner chain plate (6). The outer chain plate (1) and the inner chain plate (6) together form a complete chain. Several outer chain plates (1) and inner chain plates (6) are installed alternately and symmetrically.

4. The chain with adjustable length according to claim 1, characterized in that, Both sides of the outer chain plate (1) and the inner chain plate (6) are provided with through holes (7), and a connecting rod (8) is installed through the through hole (7) to fix the outer chain plate (1) and the inner chain plate (6) on both sides.

5. A chain with adjustable length according to claim 4, characterized in that, One end of the connecting rod (8) is provided with a fixing block (9), and the other end of the connecting rod (8) is fixedly installed with a threaded column (10). A connecting block (11) is rotatably installed on the outside of the threaded column (10). The tops of the fixing block (9) and the connecting block (11) are both located on the outside of the outer chain plate (1).

6. A chain with adjustable length according to claim 4, characterized in that, The connecting rod (8) has a positioning ring groove (12) fixedly opened on the side near the threaded post (10), and the positioning ring groove (12) is installed to the inside of the through hole (7).

7. A chain with adjustable length according to claim 1, characterized in that, An oil storage tank is provided inside the outer chain plate (1), and an oil inlet (13) is provided on the outer wall of the outer chain plate (1).

8. A chain with adjustable length according to claim 7, characterized in that, Oil-absorbing cotton (14) is installed on the outside of the oil inlet (13).

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