Piston pin convenient to install

Abstract

The utility model provides a piston pin convenient to install, and belongs to the technical field of piston pins. The groove is formed in the circumferential surface of the piston pin; the limiting rod is fixedly connected to the circumferential surface of the piston pin; the elastic sleeve is arranged on the circumferential surface of the piston pin in a sleeving mode, and the elastic sleeve is located in the groove; the circular holes are formed in the circumferential surface of the elastic sleeve, the stability of the piston pin in the moving process can be guaranteed through the existence of the elastic sleeve, possible deviation or shaking is reduced, meanwhile, the hollow grooves with the depth being 1 cm are formed in the circumferential surface of the piston pin, and due to the design, the weight of the piston pin is reduced, abrasion is reduced, and the service life is prolonged. And the elastic sleeve is flush with the piston pin, so that the appearance of the piston pin is smoother, the friction between the piston pin and other parts is reduced, and the maintenance cost is further reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of piston pins, and in particular relates to a piston pin which is easy to install. Background Art

[0002] The piston pin is a cylindrical pin installed on the piston skirt. Its middle part passes through the small hole of the connecting rod and is used to connect the piston and the connecting rod. Its function is to transmit the gas force borne by the piston to the connecting rod, or to make the small end of the connecting rod drive the piston to move together. In order to reduce weight, the piston pin is generally made of high-quality alloy steel and made hollow.

[0003] The patent document with the announcement number "CN212338144U" records that "a piston pin that is easy to install and use includes a cylindrical piston pin body, the piston pin body is provided with a through hole in the axial direction, and the side walls of the piston pin body are relatively provided with positioning grooves set to maintain the spacing in the length direction, and an elastic gasket is installed in the positioning groove, and a limit stopper is provided on the elastic gasket, which is partially limited in the positioning groove. The upper surface of the limit stopper is inclined to be provided with a guide part, and one end of the guide part close to the middle of the piston pin body partially protrudes out of the positioning groove, and the other end of the guide part is located in the positioning groove. By arranging the elastic gasket and the limit stopper in the positioning groove, in the process of assembling the connecting rod and the piston pin, the small head hole of the connecting rod moves along the guide part toward the middle of the piston pin. When it moves to the protruding part of the limit stopper, the limit stopper compresses the elastic gasket to shrink, so that the connecting rod can be smoothly inserted between the two limit stops. When the limit stopper releases the pressure, the elastic gasket and the limit stopper return to their original state, and the connecting rod is firmly clamped on the piston pin."

[0004] When the limit stopper releases the pressure, the elastic gasket and the limit stopper return to their original state, firmly clamping the connecting rod on the piston pin. However, the above patent will consume some strength and durability during long-term disassembly and installation. During installation and disassembly, if the strength of the piston pin is insufficient, it may cause wear or damage during engine operation. Utility Model Content

[0005] The utility model aims to provide a piston pin that is easy to install, aiming to solve the problem in the prior art that during long-term disassembly and installation, some strength and durability will be consumed. During installation and disassembly, if the strength of the piston pin is insufficient, it may cause wear or damage during engine operation.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A piston pin that is easy to install, comprising:

[0008] Piston pin;

[0009] A groove, wherein the groove is formed on the circumferential surface of the piston pin;

[0010] A limiting rod, the limiting rod being fixedly connected to the circumferential surface of the piston pin;

[0011] An elastic sleeve, wherein the elastic sleeve is sleeved on the circumferential surface of the piston pin and is located in the groove;

[0012] A circular hole is provided on the circumferential surface of the elastic sleeve, and the circular hole is sleeved on the circumferential surface of the limiting rod.

[0013] As a preferred solution of the utility model, a hollow groove is provided on the circumferential surface of the piston pin, and the depth of the hollow groove is 1 cm.

[0014] As a preferred solution of the utility model, the elastic sleeve is flush with the piston pin.

[0015] As a preferred solution of the utility model, a conical groove is formed on one side end of the piston pin.

[0016] As a preferred solution of the utility model, the sharp corners of the elastic sleeve are designed to be rounded.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. In this solution, the presence of the elastic sleeve can ensure the stability of the piston pin during movement and reduce possible deviation or shaking. At the same time, a hollow groove with a depth of 1 cm is opened on the circumferential surface of the piston pin. This design helps to reduce the weight of the piston pin, reduce wear and extend the service life. In addition, the elastic sleeve is flush with the piston pin, making the appearance of the piston pin smoother, reducing friction with other components, and further reducing maintenance costs.

[0019] 2. In this solution, a conical groove is provided on one side of the piston pin. This design helps guide the piston pin to the correct position during installation and movement, reducing the risk of failure due to improper installation. At the same time, the sharp corners of the elastic sleeve are rounded, which reduces the risk of damage to the piston pin in extreme cases and improves the safety of the overall equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a main perspective view of the utility model;

[0022] Figure 2 It is an exploded view of the utility model;

[0023] Figure 3 For the utility model Figure 2 A partial enlarged view of point A in the middle.

[0024] In the figure: 1. piston pin; 2. elastic sleeve; 3. limit rod; 4. conical groove; 5. hollow groove; 6. groove; 7. circular hole. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1

[0027] See also Figure 1-Figure 3 , the utility model provides the following technical solutions:

[0028] A piston pin that is easy to install, comprising:

[0029] Piston pin 1;

[0030] A groove 6, the groove 6 is formed on the circumferential surface of the piston pin 1;

[0031] A limiting rod 3, the limiting rod 3 is fixedly connected to the circumferential surface of the piston pin 1;

[0032] An elastic sleeve 2, which is sleeved on the circumferential surface of the piston pin 1 and is located in the groove 6;

[0033] The circular hole 7 is formed on the circumferential surface of the elastic sleeve 2 , and the circular hole 7 is sleeved on the circumferential surface of the limiting rod 3 .

[0034] In the specific embodiment of the utility model, the piston pin 1 is made of high-strength metal material, has high hardness and wear resistance, and can withstand high temperature and high pressure working environment. The depth and width of the groove 6 are moderate to facilitate the installation and fixation of the elastic sleeve 2. The limit rod 3 can limit the movement of the elastic sleeve 2 in the groove 6 to ensure that the elastic sleeve 2 will not fall off. The elastic sleeve 2 is made of wear-resistant and high-temperature resistant rubber material, has high elasticity and recovery. The elastic sleeve 2 is sleeved on the circumferential surface of the piston pin 1 and is located in the groove 6. It can have The circular hole 7 effectively prevents the piston pin 1 from directly contacting other components, reduces wear and noise, and the diameter of the circular hole 7 matches the diameter of the limiting rod 3, so that the elastic sleeve 2 can be smoothly sleeved on the circumferential surface of the limiting rod 3 during the installation process. By providing a groove 6 on the circumferential surface of the piston pin 1 and setting the limiting rod 3, the elastic sleeve 2 can be firmly installed on the piston pin 1, thereby improving the installation efficiency and safety of the piston pin 1. At the same time, the elastic sleeve 2 can effectively reduce the wear and noise between the piston pin 1 and other components, and extend the service life of the piston pin 1.

[0035] For details, please refer to Figure 1-Figure 3 A hollow groove 5 is provided on the circumferential surface of the piston pin 1, and the depth of the hollow groove 5 is 1 cm.

[0036] In this embodiment, the hollow groove 5 can provide strength for the piston pin 1. During the use of the piston pin 1, the hollow groove 5 can reduce buffering and the frequency of vibration transmission, while absorbing part of the impact force, thereby improving the overall performance and life of the engine.

[0037] For details, please refer to Figure 1-Figure 3 , the elastic sleeve 2 is flush with the piston pin 1.

[0038] In this embodiment, after the elastic sleeve 2 is installed, it is flush with the piston pin 1, so that there is no protrusion, which ensures the stable installation and use of the device, and at the same time facilitates disassembly without damaging the surface of the piston pin 1.

[0039] For details, please refer to Figure 1-Figure 3 A conical groove 4 is provided on one side end of the piston pin 1.

[0040] In this embodiment, the design of the tapered groove 4 helps to position the piston pin 1 during the installation process and ensures its precise fit with other components.

[0041] For details, please refer to Figure 1-Figure 3 The sharp corners of the elastic sleeve 2 are designed to be rounded.

[0042] In this embodiment, the rounded corner design of the elastic sleeve 2 prevents the elastic sleeve 2 from hurting the fingers of personnel during installation, and makes it easier for personnel to pick up the elastic sleeve 2.

[0043] The working principle and use process of the utility model are as follows: the elastic sleeve 2 is sleeved on the circumferential surface of the piston pin 1, ensuring that the elastic sleeve 2 is located in the groove 6, confirming that the circular hole 7 of the elastic sleeve 2 is sleeved on the circumferential surface of the limit rod 3, and ensuring that the piston pin 1, the elastic sleeve 2 and the limit rod 3 are firmly installed, then it can be used, which can effectively reduce friction and wear during operation, improve the overall performance and life of the engine, and the design of the elastic sleeve 2 enables it to absorb impact and buffer, protecting other engine components from damage.

[0044] Finally, it should be noted that 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 above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or 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.

Claims

1. A piston pin that is easy to install, characterized in that: include: Piston pin (1); A groove (6), wherein the groove (6) is formed on the circumferential surface of the piston pin (1); A limiting rod (3), wherein the limiting rod (3) is fixedly connected to the circumferential surface of the piston pin (1); An elastic sleeve (2), wherein the elastic sleeve (2) is sleeved on the circumferential surface of the piston pin (1), and the elastic sleeve (2) is located in the groove (6); A circular hole (7), wherein the circular hole (7) is opened on the circumferential surface of the elastic sleeve (2), and the circular hole (7) is sleeved on the circumferential surface of the limiting rod (3).

2. A piston pin that is easy to install according to claim 1, characterized in that: The circumferential surface of the piston pin (1) is provided with a hollow groove (5), and the depth of the hollow groove (5) is 1 cm.

3. A piston pin that is easy to install according to claim 2, characterized in that: The elastic sleeve (2) is flush with the piston pin (1).

4. A piston pin that is easy to install according to claim 3, characterized in that: A conical groove (4) is formed on one side end of the piston pin (1).

5. A piston pin that is easy to install according to claim 4, characterized in that: The sharp corners of the elastic sleeve (2) are designed to be rounded.

Images