Tensioning plate bolt of motorcycle engine

Abstract

The utility model discloses a motorcycle engine tensioning plate bolt, which belongs to the field of bolts, and comprises a bolt main body, the bolt main body is arranged on a tensioner, the bolt main body consists of a hexagonal block and a screw rod, the outer side of the hexagonal block is sleeved with a limiting ring, the limiting ring is fixedly arranged on the tensioner at the same time, and a limiting structure is movably arranged on the hexagonal block. The limiting structure is composed of a bottom base plate, two connecting rods, two limiting clamping blocks, a mounting rod, a limiting spring and a top block, the two connecting rods are symmetrically and fixedly mounted on the outer wall of the bottom base plate, the two limiting clamping blocks are fixedly mounted at the lower ends of the two connecting rods respectively, and the mounting rod is fixedly mounted at the upper end of the bottom base plate; the limiting structure is arranged on the bolt body, the bolt body is sleeved with the limiting ring, the limiting ring is matched with the limiting structure, and the bolt body can be fixed, so that the probability that the bolt body is loosened after being vibrated is reduced, and then the probability that the tensioner is loosened can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of bolts, in particular to a tensioning plate bolt for a motorcycle engine. Background Art

[0002] The motorcycle engine tensioner is also called a chain tensioner or tensioner. The motorcycle engine tensioner bolt is an important fastener in the engine. It is usually used to fix the tensioner, and the tensioner is used to adjust the tension of the engine timing belt or chain to ensure that it is always in the best condition. The main function of the tensioner bolt is to maintain the stability of the tensioner and prevent it from loosening due to vibration or long-term use. If the tensioner bolt is loose or damaged, it may cause the tension of the engine timing belt or chain to be unstable, thereby affecting the normal operation of the engine. The motorcycle will produce a certain vibration during driving. When this vibration force acts on the bolt that fixes the tensioner, the bolt is easy to loosen. When the bolt is loose, the tensioner fixed by it will also loosen accordingly, which will easily lead to unstable tension of the engine timing belt or chain, thereby affecting the normal operation of the engine. Therefore, a motorcycle engine tensioner bolt is needed to solve the above problems. Utility Model Content

[0003] The main purpose of the utility model is to provide a motorcycle engine tensioning plate bolt, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A motorcycle engine tensioning plate bolt comprises a bolt body, wherein the bolt body is mounted on a tensioner, the bolt body consists of a hexagonal block and a screw, a limiting ring is sleeved on the outer side of the hexagonal block, and the limiting ring is fixedly mounted on the tensioner at the same time, a limiting structure is movably mounted on the hexagonal block, the limiting structure consists of a bottom base plate, a connecting rod, a limiting block, a mounting rod, a limiting spring and a top block, the connecting rods have two and are symmetrically fixedly mounted on the outer wall of the bottom base plate, the limiting blocks have two and are respectively fixedly mounted on the lower ends of the two connecting rods, the mounting rod is fixedly mounted on the upper end of the bottom base plate, the limiting spring is sleeved on the mounting rod, the top block is fixedly mounted on the upper end of the mounting rod, and the limiting block can be embedded in the limiting ring.

[0006] Preferably, the screw is fixedly installed at the lower end of the hexagonal block, a storage cavity is opened in the hexagonal block, two connecting grooves are symmetrically opened on the side wall of the hexagonal block, a connecting hole is opened at the upper end of the hexagonal block, and the storage cavity is connected with the connecting groove and the connecting hole.

[0007] Preferably, the limiting ring is an annular structure, and a plurality of limiting slots are provided at the upper end of the limiting ring.

[0008] Preferably, the bottom substrate on the limiting structure is movably mounted in a receiving cavity provided in the hexagonal block, and the limiting spring is also located in the receiving cavity.

[0009] Preferably, the connecting rod is movably installed in a connecting groove provided on the hexagonal block, the limiting block is located outside the hexagonal block, and the limiting block can be embedded in a limiting groove provided on the upper end of the limiting ring.

[0010] Preferably, the mounting rod passes through the connecting hole, and the top block is located above the hexagonal block.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] By arranging a limiting structure on the bolt body and sleeved a limiting ring on the outside of the bolt body, the limiting ring cooperates with the limiting structure to fix the bolt body, thereby reducing the probability of the bolt body loosening after being vibrated, and further reducing the probability of the tensioner loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 For the utility model Figure 1 A magnified view of point A;

[0015] Figure 3 It is a schematic structural diagram of the bolt body of the utility model after being cut away;

[0016] Figure 4 It is a structural schematic diagram of the limiting structure of the utility model.

[0017] In the figure: 1. bolt body; 2. tensioner; 3. limit ring; 4. limit structure; 5. top block; 6. hexagonal block; 7. screw; 8. storage cavity; 9. connecting groove; 10. connecting hole; 11. limit card slot; 12. bottom base plate; 13. connecting rod; 14. limit card block; 15. mounting rod; 16. limit spring. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] See also Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a motorcycle engine tensioning plate bolt includes a bolt body 1, which is installed on a tensioner 2. The bolt body 1 is composed of a hexagonal block 6 and a screw 7. The screw 7 is fixedly installed at the lower end of the hexagonal block 6. A storage cavity 8 is opened in the hexagonal block 6. Two connecting grooves 9 are symmetrically opened on the side wall of the hexagonal block 6. A connecting hole 10 is opened at the upper end of the hexagonal block 6. The storage cavity 8 is connected with the connecting groove 9 and the connecting hole 10.

[0020] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a limiting ring 3 is sleeved on the outer side of the hexagonal block 6, and the limiting ring 3 is fixedly installed on the tensioner 2 at the same time. A limiting structure 4 is movably installed on the hexagonal block 6, and the limiting structure 4 is composed of a bottom base plate 12, a connecting rod 13, a limiting block 14, a mounting rod 15, a limiting spring 16 and a top block 5. There are two connecting rods 13 and they are symmetrically fixed on the outer wall of the bottom base plate 12. There are two limiting blocks 14 and they are respectively fixed on the lower ends of the two connecting rods 13. The mounting rod 15 is fixedly installed on the upper end of the bottom base plate 12. The limiting spring 16 is sleeved on the mounting rod 15. The top block 5 is fixedly installed on the upper end of the mounting rod 15. The limiting block 14 can be embedded in the limiting ring 3. The limiting ring 3 is an annular structure, and the upper end of the limiting ring 3 is provided with a plurality of limiting The bottom substrate 12 on the limiting structure 4 is movably installed in the storage cavity 8 opened in the hexagonal block 6, the limiting spring 16 is also located in the storage cavity 8, the connecting rod 13 is movably installed in the connecting groove 9 opened in the hexagonal block 6, the limiting block 14 is located on the outside of the hexagonal block 6, and the limiting block 14 can be embedded in the limiting slot 11 opened at the upper end of the limiting ring 3, the mounting rod 15 passes through the connecting hole 10, and the top block 5 is located above the hexagonal block 6. By arranging the limiting structure 4 on the bolt body 1 and sleeved on the outside of the bolt body 1, the limiting ring 3 cooperates with the limiting structure 4 to fix the bolt body 1, thereby reducing the probability of the bolt body 1 loosening after being vibrated, and further reducing the probability of the tensioner 2 loosening.

[0021] It should be noted that the utility model is a motorcycle engine tensioning plate bolt. When the tensioner 2 is fixed on the motorcycle engine, the tensioner 2 can be firstly pressed against the motorcycle engine, and the mounting hole on the tensioner 2 is made coaxial with the mounting hole on the motorcycle engine. Then, the screw rod 7 on the bolt body 1 can be passed through the mounting hole on the tensioner 2, and then the screw rod 7 on the bolt body 1 is rotated clockwise into the mounting hole on the motorcycle engine. In this process, the limiting structure 4 will approach the limiting ring 3. When the bolt body 1 is installed and fixed, the limiting structure 4 on the limiting structure 4 is The block 14 can be inserted into the limit slot 11 opened at the upper end of the limit ring 3 under the elastic force of the limit spring 16. At this time, the bolt body 1 is fixed by the limit ring 3 and the limit structure 4, thereby reducing the probability of the bolt body 1 loosening after being subjected to long-term vibration; when the bolt body 1 needs to be disassembled, the limit structure 4 can be pulled upward first, so that the limit block 14 is moved out of the limit slot 11 opened at the upper end of the limit ring 3, and the limit spring 16 will be compressed by the bottom substrate 12, and then the bolt body 1 can be rotated counterclockwise with a tool to remove the bolt body 1.

[0022] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the aforementioned embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model. The protection scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A motorcycle engine tensioning plate bolt, comprising a bolt body (1), the bolt body (1) being mounted on a tensioner (2), the bolt body (1) being composed of a hexagonal block (6) and a screw rod (7), characterized in that: A limiting ring (3) is sleeved on the outer side of the hexagonal block (6), and the limiting ring (3) is fixedly mounted on the tensioner (2). A limiting structure (4) is movably mounted on the hexagonal block (6), and the limiting structure (4) is composed of a bottom base plate (12), a connecting rod (13), a limiting block (14), a mounting rod (15), a limiting spring (16) and a top block (5). There are two connecting rods (13) and they are symmetrically fixedly mounted on the outer wall of the bottom base plate (12). There are two limiting blocks (14) and they are respectively fixedly mounted on the lower ends of the two connecting rods (13). The mounting rod (15) is fixedly mounted on the upper end of the bottom base plate (12). The limiting spring (16) is sleeved on the mounting rod (15). The top block (5) is fixedly mounted on the upper end of the mounting rod (15). The limiting block (14) can be embedded in the limiting ring (3).

2. A motorcycle engine tensioning plate bolt according to claim 1, characterized in that: The screw rod (7) is fixedly mounted on the lower end of the hexagonal block (6); a receiving chamber (8) is provided in the hexagonal block (6); two connecting grooves (9) are symmetrically provided on the side wall of the hexagonal block (6); a connecting hole (10) is provided at the upper end of the hexagonal block (6); and the receiving chamber (8) is communicated with the connecting groove (9) and the connecting hole (10).

3. A motorcycle engine tensioning plate bolt according to claim 2, characterized in that: The limiting ring (3) is an annular structure, and a plurality of limiting slots (11) are provided at the upper end of the limiting ring (3).

4. A motorcycle engine tensioning plate bolt according to claim 3, characterized in that: The bottom base plate (12) on the limiting structure (4) is movably mounted in a receiving cavity (8) opened in the hexagonal block (6), and the limiting spring (16) is also located in the receiving cavity (8).

5. A motorcycle engine tensioning plate bolt according to claim 4, characterized in that: The connecting rod (13) is movably mounted in a connecting groove (9) provided on the hexagonal block (6); the limiting block (14) is located outside the hexagonal block (6); and the limiting block (14) can be embedded in a limiting groove (11) provided on the upper end of the limiting ring (3).

6. A motorcycle engine tensioning plate bolt according to claim 5, characterized in that: The mounting rod (15) passes through the communicating hole (10), and the top block (5) is located above the hexagonal block (6).

Images