Internal reinforcing type piston pin

Abstract

The utility model provides an internal reinforcing type piston pin, which belongs to the technical field of piston pins and comprises a piston pin body, and two reinforcing grooves are arranged on the circumferential surface of the piston pin body. The sliding groove is formed in the piston pin main body; the sliding rod is connected into the sliding groove in a sliding manner; the number of the inner reinforcing mechanisms is two, and each inner reinforcing mechanism comprises an elastic groove, a push rod, an annular plate, a spring and a reinforcing block; compared with a traditional piston pin, the piston pin has the advantages that special lines are not arranged on the surface of the piston pin body, the piston pin is convenient to mount, the mounting stability of the piston pin is improved through the inner reinforcing mechanism after mounting is completed, and the piston pin is convenient to mount, dismount and use.

Description

Technical Field

[0001] The utility model belongs to the technical field of piston pins, and in particular relates to an internally reinforced piston pin. Background Art

[0002] In the field of automotive engineering, a piston pin is a small shaft that connects the piston and the connecting rod, also known as a piston connecting rod pin. The piston pin plays an important role in the internal combustion engine, converting the movement of the piston into the movement of the connecting rod, thereby driving the crankshaft to rotate and complete the engine's working cycle. The piston pin needs to have high strength and wear resistance to withstand high temperature and high pressure environments. It is usually made of wear-resistant materials such as alloy steel and may undergo special surface treatments such as chrome plating or nitriding to improve its durability. In automotive repair and maintenance, checking the condition of the piston pin and properly replacing it is an important part of maintaining engine performance and extending its service life.

[0003] In the prior art, the piston pin installed in the piston and the connecting rod often increases the stability of the connection with the connecting rod by means of its surface texture. However, when the piston pin has texture on its surface, the texture is likely to cause obstruction during its installation, making the installation inconvenient. Utility Model Content

[0004] The utility model aims to provide an internally reinforced piston pin, aiming to solve the problem that in the prior art, the piston pin installed in the piston and the connecting rod often increases the stability of the connection with the connecting rod by means of its surface texture, but when the piston pin has texture on its surface, the texture is likely to cause obstruction during its installation, making the installation inconvenient.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An internally reinforced piston pin, comprising:

[0007] A piston pin body, wherein the circumferential surface of the piston pin body is provided with two reinforcement grooves;

[0008] A sliding groove, wherein the sliding groove is provided in the piston pin body;

[0009] A sliding rod, wherein the sliding rod is slidably connected in the sliding groove;

[0010] The internal reinforcement mechanism is provided with two groups, each group of internal reinforcement mechanisms includes an elastic groove, a push rod, an annular plate, a spring and a reinforcement block. The elastic groove is opened in the piston pin body, and the elastic groove is respectively connected with the sliding groove and the reinforcement groove. The push rod is slidably connected in the elastic groove, the annular plate is fixedly connected to the circumferential surface of the push rod, the spring is sleeved on the circumferential surface of the push rod, the upper end of the spring is fixedly connected to the upper inner wall of the elastic groove, the lower end of the spring is fixedly connected to the upper surface of the annular plate, and the reinforcement block is fixedly connected to the upper end of the push rod.

[0011] As a preferred solution of the utility model, a thread groove is formed at one end of the piston pin body, the thread groove is communicated with the sliding groove, and a thread column is threadedly connected in the thread groove.

[0012] As a preferred solution of the utility model, one end of the sliding rod is fixedly connected to a traction column.

[0013] As a preferred solution of the utility model, a hexagonal groove is provided on the surface of the threaded column.

[0014] As a preferred solution of the utility model, the contact surfaces between the two push rods and the sliding rod are both inclined surfaces.

[0015] As a preferred solution of the utility model, the sliding groove and the sliding rod are both rectangular structures.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. In this solution, by using this device, compared with the traditional piston pin, the surface of the piston pin body is not provided with special textures, which is convenient during installation. After the installation is completed, the stability of the installation of the device is improved through the internal reinforcement mechanism, which is convenient for installation and disassembly and easy to use.

[0018] 2. In this solution, the internal reinforcement mechanism is operated, which is convenient for installation when connected with the connecting rod, and has excellent stability after installation and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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:

[0020] Figure 1 It is a three-dimensional diagram of the utility model;

[0021] Figure 2 It is an exploded view of the utility model;

[0022] Figure 3 It is a cross-sectional view of the utility model;

[0023] Figure 4 For this utility model Figure 3 A partial enlarged view of point A in the middle.

[0024] In the figure: 1. piston pin body; 2. reinforcement groove; 3. threaded groove; 4. threaded column; 5. sliding groove; 6. sliding rod; 7. traction column; 8. elastic groove; 9. push rod; 10. annular plate; 11. spring; 12. reinforcement block; 13. hexagonal groove. 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

[0027] See also Figure 1-Figure 4 , the utility model provides the following technical solutions:

[0028] An internally reinforced piston pin, comprising:

[0029] A piston pin body 1, the circumferential surface of which is provided with two reinforcement grooves 2;

[0030] A sliding groove 5, which is provided in the piston pin body 1;

[0031] A sliding rod 6, the sliding rod 6 is slidably connected in the sliding groove 5;

[0032] The internal reinforcement mechanism is provided with two groups, each group of internal reinforcement mechanisms includes an elastic groove 8, a push rod 9, an annular plate 10, a spring 11 and a reinforcement block 12. The elastic groove 8 is opened in the piston pin body 1, and the elastic groove 8 is respectively connected with the sliding groove 5 and the reinforcement groove 2. The push rod 9 is slidably connected in the elastic groove 8, the annular plate 10 is fixedly connected to the circumferential surface of the push rod 9, the spring 11 is sleeved on the circumferential surface of the push rod 9, the upper end of the spring 11 is fixedly connected to the upper inner wall of the elastic groove 8, the lower end of the spring 11 is fixedly connected to the upper surface of the annular plate 10, and the reinforcement block 12 is fixedly connected to the upper end of the push rod 9.

[0033] In a specific embodiment of the utility model, the piston pin body 1 is made of alloy steel material, and the two reinforcement grooves 2 on its surface are used to install the reinforcement block 12. The sliding groove 5 provided in the piston pin body 1 is used to connect the sliding rod 6. The sliding rod 6 slides in the sliding groove 5. The push rod 9 is slidably connected in the elastic groove 8 in the inner reinforcement mechanism. The contact surface between the push rod 9 and the sliding rod 6 is an inclined surface. The sliding rod 6 slides in the sliding groove 5, and the push rod 9 is squeezed by the sliding rod 6, so that the push rod 9 drives the reinforcement block 12 to be ejected outward, and the reinforcement block 12 It presses against the inner wall of the connecting rod, effectively improving the stability of the piston pin body 1 when in use. The spring 11 in the internal reinforcement mechanism plays a resetting role. After the sliding rod 6 is taken out of the sliding groove 5, the annular plate 10 is driven to move under the action of the elastic force of the spring 11, and the annular plate 10 drives the push rod 9 to move. At this time, the reinforcement block 12 does not contact the inner wall of the connecting rod, which makes it easy to take the piston pin body 1 out of the connecting rod. By using this device, it is operated by the internal reinforcement mechanism, and it is convenient to install when connected to the connecting rod. After installation, it has excellent stability and is easy to use.

[0034] For details, please refer to Figure 1-Figure 4 A thread groove 3 is formed at one end of the piston pin body 1, the thread groove 3 is connected to the sliding groove 5, and a thread column 4 is connected to the inner thread of the thread groove 3.

[0035] In this embodiment, the threaded groove 3 is used to install the threaded column 4, and the threaded column 4 is arranged to ensure that the sliding rod 6 is located in the sliding groove 5 and will not fall out.

[0036] For details, please refer to Figure 1-Figure 4 One end of the sliding rod 6 is fixedly connected to a traction column 7.

[0037] In this embodiment, the traction column 7 is provided to facilitate pulling the traction column 7 to remove the sliding rod 6 from the sliding groove 5 .

[0038] For details, please refer to Figure 1-Figure 4 A hexagonal groove 13 is formed on the surface of the threaded column 4 .

[0039] In this embodiment, the hexagonal groove 13 is provided to facilitate the use of a tool to rotate the threaded column 4, thereby facilitating the installation and removal of the threaded column 4.

[0040] For details, please refer to Figure 1-Figure 4 The contact surfaces of the two push rods 9 and the sliding rod 6 are both inclined surfaces.

[0041] In this embodiment, by providing the inclined surface, when the sliding rod 6 moves, the sliding rod 6 presses the inclined surface, thereby driving the push rod 9 to move.

[0042] For details, please refer to Figure 1-Figure 4 , the sliding groove 5 and the sliding rod 6 are both rectangular structures.

[0043] In this embodiment, the rectangular structure is used to limit the sliding rod 6 to improve the stability of the sliding rod 6 when sliding.

[0044] The working principle and use process of the utility model are as follows: when the device is in use, the piston pin body 1 is connected to the connection between the piston and the connecting rod, and then the sliding rod 6 is slid into the sliding groove 5. In the process of the sliding rod 6 sliding into the sliding groove 5, the sliding rod 6 squeezes the inclined surface of the push rod 9. After being squeezed, the push rod 9 overcomes the elastic force of the spring 11, drives the reinforcement block 12 to slide outward, and the reinforcement block 12 is pressed against the connection between the piston and the connecting rod. Finally, a tool is used to rotate the threaded column 4 into the threaded groove 3 to complete the installation of the device. By using the device, compared with the traditional piston pin, the surface of the piston pin body 1 is not provided with special textures, which is convenient during installation. After the installation is completed, the internal reinforcement mechanism is used to improve the stability of the installation of the device, which is convenient for installation and disassembly and easy to use.

[0045] 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. An internally reinforced piston pin, characterized in that: include: A piston pin body (1), wherein the circumferential surface of the piston pin body (1) is provided with two reinforcement grooves (2); A sliding groove (5), wherein the sliding groove (5) is provided in the piston pin body (1); A sliding rod (6), wherein the sliding rod (6) is slidably connected in the sliding groove (5); The internal reinforcement mechanism is provided with two groups, each group of the internal reinforcement mechanism comprises an elastic groove (8), a push rod (9), an annular plate (10), a spring (11) and a reinforcement block (12), wherein the elastic groove (8) is provided in the piston pin body (1), the elastic groove (8) is communicated with the sliding groove (5) and the reinforcement groove (2) respectively, the push rod (9) is slidably connected in the elastic groove (8), the annular plate (10) is fixedly connected to the circumferential surface of the push rod (9), the spring (11) is sleeved on the circumferential surface of the push rod (9), the upper end of the spring (11) is fixedly connected to the upper inner wall of the elastic groove (8), the lower end of the spring (11) is fixedly connected to the upper surface of the annular plate (10), and the reinforcement block (12) is fixedly connected to the upper end of the push rod (9).

2. The internally reinforced piston pin according to claim 1, characterized in that: A thread groove (3) is formed at one end of the piston pin body (1), the thread groove (3) is connected to the sliding groove (5), and a thread column (4) is connected to the inner thread of the thread groove (3).

3. The internally reinforced piston pin according to claim 2, characterized in that: One end of the sliding rod (6) is fixedly connected to a traction column (7).

4. The internally reinforced piston pin according to claim 3, characterized in that: A hexagonal groove (13) is formed on the surface of the threaded column (4).

5. The internally reinforced piston pin according to claim 4, characterized in that: The contact surfaces between the two push rods (9) and the sliding rod (6) are both inclined surfaces.

6. The internally reinforced piston pin according to claim 5, characterized in that: The sliding groove (5) and the sliding rod (6) are both rectangular structures.

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