Spring buffer for bumper body of motorcycle

Abstract

The utility model discloses a spring buffer for a bumper body of a motorcycle, which comprises an anti-drop head, a sleeve, a bolt, a spring, an expansion block and a nut, the anti-drop head is of a hollow structure, the outer diameter size of the bottom end of the anti-drop head is matched with the inner diameter size of the top end of the sleeve, the bottom end of the anti-drop head is inserted into the top end of the sleeve, the spring is positioned in the sleeve, and the expansion block is positioned in the sleeve. The bottom end of the anti-falling head abuts against the top end of the spring, the bottom end of the spring abuts against the interior of the bottom end of the sleeve, a first thread is arranged at the bottom of the bolt, and the bottom of the bolt is inserted from the top end of the anti-falling head, passes through the hollow portion of the spring and is in threaded connection with a second thread arranged in the bottom end of the sleeve. Third threads matched with the first threads are arranged in the nut, the first thread end of the bolt is inserted into the expansion block and then is in threaded connection with the nut, and the bolt is in threaded connection with the sleeve to control the pressure of the spring. The buffering device can play a role in buffering falling of a car.

Description

Technical Field

[0001] The utility model relates to the technical field of a buffer, in particular to a spring buffer for a motorcycle bumper body. Background Art

[0002] The buffers currently used in motorcycle bumper bodies on the market are usually adapted to the vehicle model alone, that is, they are dedicated to each vehicle. Since the bumper bodies of each model of motorcycle are different, the spring lengths of the buffers are also inconsistent, making it impossible to achieve universality of the springs. Utility Model Content

[0003] In order to overcome the above problems, the purpose of the present invention is to provide a spring buffer for a motorcycle bumper bar body, which can play a role in buffering the vehicle from falling, and has an energy-absorbing and buffering effect when the bar body contacts the ground.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is: a spring buffer for a motorcycle bumper body, comprising an anti-fall head, a sleeve, a bolt, a spring, an expansion block and a nut, the anti-fall head being a hollow structure, the outer diameter of its bottom end matching the inner diameter of the top end of the sleeve, and the bottom end of the anti-fall head being inserted into the top end of the sleeve, the spring being located in the sleeve, the bottom end of the anti-fall head against the top end of the spring, and the bottom end of the spring against the inside of the bottom end of the sleeve, the bottom of the bolt being provided with a first thread, the bottom of the bolt being inserted from the top end of the anti-fall head, passing through the hollow part of the spring, and being threadedly connected with the second thread provided inside the bottom end of the sleeve, one end of the expansion block contacts the bottom end of the sleeve, and the other end contacts one end of the nut, a third thread matching the first thread is provided inside the nut, the first threaded end of the bolt is threadedly connected with the nut after being inserted into the expansion block, and the bolt controls the pressure of the spring through the threaded connection with the sleeve.

[0005] Preferably, a first sealing ring for sealing is provided at the bottom of the anti-fall head, so that the anti-fall head plays a sealing role when inserted into the sleeve.

[0006] Preferably, the bottom end of the spring is provided with a second sealing ring which is sealed with the inside of the bottom end of the sleeve.

[0007] Preferably, a hexagonal bolt head is provided at the top end of the bolt, and the bottom end of the bolt head is clamped inside the anti-fall head.

[0008] Preferably, the expansion block is composed of three arc-shaped pieces, and a third sealing ring is provided on the outer surface of the expansion block.

[0009] Preferably, the nut is configured as a conical nut, and a conical groove matching the outer shape of the conical nut is provided inside the expansion block.

[0010] Preferably, the threaded connection between the nut and the bolt can expand the expansion block.

[0011] Preferably, an oblong boss is provided at the top end of the sleeve, and the oblong boss consists of two arc-shaped edges and two transverse edges, and the two transverse edges are parallel to each other.

[0012] The beneficial effects of the present invention are: it can play the role of buffering the impact of a car falling, and it has the effect of absorbing energy and buffering when the bar body contacts the ground. The spring is placed in the sleeve, and the length of the spring can be adjusted through the threaded connection of the bolt placed in the anti-fall head and the sleeve, so that it can be adapted to different models of vehicles, achieving the purpose of universal adaptation, and the parts used are universal, and all models and all bar bodies are adapted, and there is no need to purchase or replace spare parts separately. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Schematic diagram of the structure of this embodiment;

[0014] Figure 2 Schematic diagram of the overall structure of this embodiment;

[0015] Figure 3 Schematic diagram of the structure of the anti-fall head of this embodiment;

[0016] Figure 4 Schematic diagram of the structure of the expansion block of this embodiment;

[0017] Figure 5 This is a schematic diagram of the main structure of the expansion block of this embodiment;

[0018] Figure 6 Schematic diagram of the structure of the nut of this embodiment;

[0019] Figure 7 Schematic diagram of the top view of the sleeve of this embodiment.

[0020] In the figure: 1. Anti-fall head; 2. Sleeve; 3. Bolt; 4. Spring; 5. Expansion block; 6. Nut; 7. First sealing ring; 8. First thread; 9. Third sealing ring; 10. Tapered groove. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0022] See also Figure 1-Figure 7The present embodiment discloses a spring buffer for a motorcycle bumper body, comprising an anti-fall head 1, a sleeve 2, a bolt 3, a spring 4, an expansion block 5 and a nut 6. The anti-fall head 1 is a hollow structure, the outer diameter of its bottom end matches the inner diameter of the top end of the sleeve 2, and the bottom end of the anti-fall head 1 is inserted into the top end of the sleeve 2, and the bottom of the anti-fall head 1 is provided with a first sealing ring 7 for sealing, so that the anti-fall head 1 is inserted into the sleeve 2 to play a sealing role. The spring 4 is located in the sleeve 2, and the bottom end of the anti-fall head 1 is against the top end of the spring 4, and the bottom end of the spring 4 is against the inside of the bottom end of the sleeve 2. The bottom end of the spring 4 is provided with a second sealing ring sealed with the inside of the bottom end of the sleeve 1, and the bottom of the bolt 3 is provided with a first thread 8. The bottom of the bolt 3 is inserted from the top end of the anti-fall head 1, passes through the hollow part of the spring 4, and is engaged with the second thread provided inside the bottom end of the sleeve 2 The bolt 3 is threadedly connected, and the top of the bolt 3 is provided with a hexagonal bolt head to facilitate the rotation of the wrench. The bottom end of the bolt head is stuck in the anti-fall head 1, so that the bolt 3 and the anti-fall head 1 rise or fall synchronously. One end of the expansion block 5 contacts the bottom end of the sleeve 2, and the other end contacts one end of the nut 6. A third thread matching the first thread 8 is provided inside the nut 6. The first thread 8 end of the bolt 3 is inserted into the expansion block 5 and threadedly connected with the nut 6. The bolt 3 controls the pressure of the spring 4 through the threaded connection with the sleeve 1. The expansion block 5 is composed of three arc-shaped pieces, and a third sealing ring 9 is provided on its outer surface. The nut 6 is set as a conical nut, and the interior of the expansion block 5 is provided with a conical groove 10 matching the external shape of the conical nut. The threaded connection between the nut 6 and the bolt 3 can expand the expansion block 5.

[0023] When in use, first place the spring 4 into the sleeve 2, insert the bottom end of the anti-fall head 1 into the top end of the sleeve 2, and then insert the bolt 3 from the top end of the anti-fall head 1. The first thread 8 on the bolt 3 is threadedly connected with the second thread inside the bottom end of the sleeve 2. The bottom end of the bolt 3 passes through the sleeve 2 and through the expansion block 5 and is threadedly connected with the third thread inside the tapered nut 6. The length of the spring 4 in the sleeve 2 is adjusted by rotating the hexagonal bolt head at the top end of the bolt 3. The sleeve 2 can also pre-compress the spring 4, and the length of the spring 4 can be adjusted according to the different needs of different models to adjust the length of the buffer. The pre-compression length of the spring 4 is different, and the force value and stress resistance of the spring 4 are also different. The greater the pre-compression value of the spring 4, the greater the force value of the spring 4, and the better the buffering effect. When the spring 4 is deeply compressed and rebounded, the length of the spring 4 will decrease. Taking the spring 4 depth of 46mm as an example, the rebound after compression is only 40mm, which can realize the pre-compression effect of the sleeve 2 and avoid the spring 4 from being compressed and having a gap and abnormal noise.

[0024] The threaded connection between the bolt 3 and the sleeve 2 can also achieve a sealing effect to prevent water from entering and causing the spring 4 to rust.

[0025] The top of the sleeve 2 is provided with an oblong boss, which consists of two arc-shaped edges and two horizontal edges. The two horizontal edges are parallel to each other. The oblong boss is provided to better remove the expansion block 5 and the nut 6 structure. Screw glue is used during the installation of the spring buffer. In order to prevent the nut 6 and the bolt 3 from loosening, the expansion block 5 is relieved of expansion, so that the spring buffer is separated from the bumper body and lost. However, adding screw glue also increases the difficulty of removal. The nut 6 and the bolt 3 are stuck together due to the screw glue, and the nut 6 cannot be loosened to relieve the expansion of the expansion block 5. After the oblong boss is provided, it is only necessary to use a wrench to clamp the position of the two horizontal edges and then turn the bolt 3 clockwise, so that the bolt 3 will move to the bottom of the sleeve 2, and the gap between the nut 6 and the bottom of the sleeve 2 will increase, the expansion block 5 will be relieved of expansion, and the spring buffer assembly will be removed.

[0026] The above implementation methods are only for illustrating the technical concept and features of the utility model. Its purpose is to enable people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the scope of protection of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the scope of protection of the utility model.

Claims

1. A spring buffer for a motorcycle bumper, characterized in that: The invention comprises an anti-fall head, a sleeve, a bolt, a spring, an expansion block and a nut. The anti-fall head is a hollow structure, the outer diameter of its bottom end matches the inner diameter of the top end of the sleeve, and the bottom end of the anti-fall head is inserted into the top end of the sleeve, the spring is located in the sleeve, the bottom end of the anti-fall head abuts the top end of the spring, and the bottom end of the spring abuts the inside of the bottom end of the sleeve, a first thread is provided at the bottom of the bolt, the bottom of the bolt is inserted from the top end of the anti-fall head, passes through the hollow part of the spring, and is threadedly connected with the second thread provided inside the bottom end of the sleeve, one end of the expansion block contacts the bottom end of the sleeve, and the other end contacts one end of the nut, a third thread matching the first thread is provided inside the nut, the first threaded end of the bolt is inserted into the expansion block and threadedly connected with the nut, and the bolt controls the pressure of the spring through the threaded connection with the sleeve.

2. The spring buffer for a motorcycle bumper according to claim 1, characterized in that: The bottom of the anti-fall head is provided with a first sealing ring for sealing, so that the anti-fall head can be inserted into the sleeve to play a sealing role.

3. The spring buffer for a motorcycle bumper according to claim 1, characterized in that: The bottom end of the spring is provided with a second sealing ring which is sealed with the inside of the bottom end of the sleeve.

4. The spring buffer for a motorcycle bumper according to claim 1, characterized in that: The top end of the bolt is provided with a hexagonal bolt head, and the bottom end of the bolt head is clamped inside the anti-fall head.

5. The spring buffer for a motorcycle bumper according to claim 1, characterized in that: The expansion block is composed of three arc-shaped pieces, and a third sealing ring is provided on the outer surface of the expansion block.

6. The spring buffer for a motorcycle bumper according to claim 5, characterized in that: The nut is configured as a conical nut, and the interior of the expansion block is provided with a conical groove that matches the external shape of the conical nut.

7. The spring buffer for a motorcycle bumper according to claim 6, characterized in that: The threaded connection between the nut and the bolt can expand the expansion block.

8. The spring buffer for a motorcycle bumper according to claim 1, characterized in that: An oblong boss is provided at the top end of the sleeve. The oblong boss consists of two arc-shaped sides and two horizontal sides, and the two horizontal sides are parallel to each other.

Images