A tensioner oil storage structure

Abstract

This utility model provides a tensioner oil storage structure, belonging to the field of automotive parts mechanical technology. It solves the problem that in existing automobiles, the oil pump needs to inject oil into the tensioner during engine startup, and the oil inside the tensioner is lost when the engine stops, easily leading to chain derailment. This tensioner oil storage structure includes a main body with a plunger groove inside, and a plunger structure installed within the plunger groove. The plunger structure has an oil storage chamber for storing oil, and an oil inlet communicating with the oil storage chamber. A one-way valve is also provided inside the plunger, and a return spring is installed between the one-way valve and the inner wall of the main body. This utility model has the advantages of preventing chain derailment accidents and improving vehicle safety.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts and mechanical technology, and relates to a tensioner, particularly to a tensioner oil storage structure. Background Technology

[0002] The tensioner is a core component of the timing drive system of an automotive engine. It is mainly responsible for guiding and dynamically tensioning the timing belt or chain to maintain optimal tension.

[0003] Every time the car engine is started, the oil pump needs to inject oil into the tensioner. When the car is stopped, the oil inside the tensioner will be lost, which can easily lead to chain derailment. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a novel tensioner with an oil storage structure.

[0005] The objective of this utility model can be achieved through the following technical solution: a tensioner oil storage structure, characterized in that the tensioner includes a main body, the main body has a plunger groove, and a plunger structure is assembled in the plunger groove. An oil storage chamber for storing engine oil is opened in the plunger structure, and an oil inlet communicating with the oil storage chamber is opened on the plunger structure. A one-way valve is also provided in the plunger, and a return spring is provided between the one-way valve and the inner wall of the main body.

[0006] In the aforementioned tensioner oil storage structure, a pin is inserted into the main body.

[0007] Compared with existing technologies, this tensioner oil storage structure has the advantages of preventing chain derailment accidents and improving vehicle safety. Attached Figure Description

[0008] Figure 1 This is a cross-sectional view of the oil reservoir structure of the tensioner.

[0009] In the diagram, 1. Main body; 2. Plunger groove; 3. Plunger structure; 4. Oil reservoir; 5. Oil inlet; 6. Check valve; 7. Return spring; 8. Pin. Detailed Implementation

[0010] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0011] like Figure 1As shown, this tensioner oil storage structure includes a main body 1, a plunger groove 2 inside the main body 1, and a plunger structure 3 installed inside the plunger groove 2. An oil storage chamber 4 for storing engine oil is opened inside the plunger structure 3. An oil inlet 5 communicating with the oil storage chamber 4 is opened on the plunger structure 3. A one-way valve 6 is also provided inside the plunger, and a return spring 7 is installed between the one-way valve 6 and the inner wall of the main body 1. When the car engine starts, the oil pump pumps engine oil into the oil storage chamber 4 through the oil inlet 5. When the car stops, under the action of the one-way valve 6 and the return spring 7, the engine oil is stored in the oil storage chamber 4 and does not leak. When the engine starts again, there is no need to refill the oil. As soon as the engine starts, the tensioner can work normally, with a rapid response, and is less likely to cause chain derailment accidents due to the current tensioner not reacting quickly enough at startup.

[0012] Preferably, a pin 8 is inserted into the main body 1.

[0013] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0014] Although this document frequently uses terms such as main body 1, plunger groove 2, plunger structure 3, oil reservoir 4, oil inlet 5, one-way valve 6, return spring 7, and pin 8, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any kind of additional limitation would contradict the spirit of this utility model.

Claims

1. A tensioner oil reservoir structure characterized by comprising: The tensioner includes a main body (1), which has a plunger groove (2) and a plunger structure (3) assembled in the plunger groove (2). The plunger structure (3) has an oil storage chamber (4) for storing engine oil. The plunger structure (3) has an oil inlet (5) communicating with the oil storage chamber (4). The plunger also has a one-way valve (6) and a return spring (7) between the one-way valve (6) and the inner wall of the main body (1).

2. The oil storage structure of a tensioner according to claim 1, wherein A pin (8) is inserted into the main body (1).

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