Sealing ring for oil pump of automobile engine

Abstract

The utility model belongs to the field of sealing rings, and particularly relates to a sealing ring for an automobile engine oil pump, which comprises a sealing ring, a connecting pipe is fixedly connected to the upper part of the right end of the sealing ring, an inflating mechanism is arranged on the connecting pipe, and two auxiliary rings which are symmetrically distributed up and down are fixedly connected inside the sealing ring. The outer side of the sealing ring is fixedly connected with a reinforcing ring, and the inner wall of the sealing ring is fixedly connected with a reinforcing pipe. The connecting pipe, the inflation pipe, the sealing plug and other structures are additionally arranged on the sealing ring, the cavity of the sealing ring can be inflated through the inflation pipe in the using process, the attaching force of the inflated sealing ring and the oil pump pipe is controlled through air pressure, the larger the air pressure is, the larger the attaching force of the sealing ring and the oil pump pipe can be, and the sealing ring is more convenient to use. Therefore, the sealing performance of the sealing ring can be effectively improved, and the situation that the sealing performance is affected by limited elasticity of the sealing ring is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing rings, in particular to a sealing ring for an automobile engine oil pump. Background Art

[0002] According to the patent authorization announcement number: CN218818168U, a sealing ring for an automobile engine oil pump is proposed. The utility model discloses a sealing ring for an automobile engine oil pump, which specifically relates to the technical field of automobile engine oil pumps. The sealing ring body is installed inside the oil pump, and the sealing ring body is mainly composed of an outer ring layer and an inner ring layer. The inner side of the inner ring layer is provided with an oil slit groove, and the inner part of the outer ring layer and the inner ring layer is provided with a rubber ball. The end of the rubber ball is provided with a reinforcement ring layer. When the lubricating oil is being transmitted in the sealing ring for the automobile engine oil pump, a certain oil pressure will be formed in the internal environment of the entire oil pump, and the oil slit groove is opened on the inner wall of the inner ring layer. The oil slit groove will be filled with lubricating oil at this time. By using this oil pressure, the oil slit groove is horizontally pressed to the rubber ball, and the rubber ball will transmit the pressure to the reinforcement ring layer, so that the reinforcement ring layer is attached to the inner wall of the oil pump, and this pressure operation can form a "suction cup principle", which is conducive to the tight fitting installation of the sealing ring body and the oil pump, and it is not easy to fall off.

[0003] However, the sealing performance of the sealing ring in the prior art during use relies on the elasticity generated by the sealing ring after being squeezed to seal the oil pump port, but the elasticity of the sealing ring is limited, resulting in limited sealing performance and oil pressure leakage. Therefore, it is necessary to improve the prior art. Utility Model Content

[0004] The utility model aims to provide a sealing ring for an automobile engine oil pump, which solves the problem that limited sealing performance easily leads to oil pressure leakage.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealing ring for an automobile engine oil pump, comprising a sealing ring, a connecting pipe fixedly connected to the upper right end of the sealing ring, an inflation mechanism provided on the connecting pipe, two auxiliary rings symmetrically distributed up and down fixedly connected to the inside of the sealing ring, a reinforcement ring fixedly connected to the outside of the sealing ring, and a reinforcement pipe fixedly connected to the inner wall of the sealing ring.

[0006] Preferably, there are two reinforcement rings, which are symmetrically distributed on the sealing ring. The reinforcement rings can prevent the sealing ring from expanding outwards.

[0007] Preferably, the reinforcement ring is in contact with the connecting pipe, and the inner side of the auxiliary ring is provided with a slope, which can guide the inserted pipe.

[0008] Preferably, the inflation mechanism includes an inflation tube, the interior of the connecting tube is fixedly connected to the inflation tube, the middle part of the inner wall of the inflation tube is fixedly connected to a support frame, the interior of the support frame is slidably connected to a guide pin, the guide pin is fixedly connected to an end of the connecting tube close to a sealing plug, a spring is provided on the outside of the guide pin, the interior of the end of the inflation tube away from the sealing plug is threadedly connected to a sealing cover, and the guide pin can guide the movement of the sealing plug.

[0009] Preferably, the sealing plug is in contact with the inflation tube, the guide pin is located inside the sealing cover and does not contact the sealing cover, and the sealing plug can seal the inflation tube.

[0010] Preferably, a sealing ring is fixedly connected to the interior of the inflation tube, and the sealing ring is in contact with the sealing cover. The sealing ring can increase the sealing performance between the sealing cover and the inflation tube.

[0011] Preferably, one end of the spring is fixedly connected to the support frame, and the other end of the spring is fixedly connected to the guide pin, and the spring can drive the guide pin to automatically reset through elastic force.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model adds a connecting tube, an inflation tube, a sealing plug and other structures to the sealing ring. During use, the inside of the cavity of the sealing ring can be inflated through the inflation tube. After inflation, the fitting strength of the sealing ring and the oil pump pipe is controlled by air pressure. The greater the air pressure, the greater the fitting strength of the sealing ring and the oil pump pipe, thereby effectively increasing the sealing performance of the sealing ring and avoiding the situation where the elasticity of the sealing ring is limited and affects the sealing performance.

[0014] 2. The utility model adds a reinforcing ring and a reinforcing tube to the sealing ring, which can increase the fit between the sealing ring and the oil pump pipeline through the reinforcing ring and the reinforcing tube, thereby further improving the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The overall structure of the utility model is three-dimensional Figure 1 ;

[0016] Figure 2 The overall structure of the utility model Figure 2 ;

[0017] Figure 3 For the utility model Figure 1 A three-dimensional cross-sectional view of

[0018] Figure 4 For the utility model Figure 1 A three-dimensional enlarged cross-sectional view of the inflation mechanism.

[0019] In the figure: 1. sealing ring; 2. connecting pipe; 3. inflation mechanism; 4. auxiliary ring; 5. reinforcement ring; 6. reinforcement pipe; 31. inflation pipe; 32. support frame; 33. guide pin; 34. sealing plug; 35. spring; 36. sealing cover; 37. sealing ring. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1 , Figure 2 , Figure 3 A sealing ring for an automobile engine oil pump comprises a sealing ring 1, a connecting pipe 2 is fixedly connected to the upper right end of the sealing ring 1, an inflation mechanism 3 is arranged on the connecting pipe 2, two auxiliary rings 4 symmetrically distributed up and down are fixedly connected to the inside of the sealing ring 1, a reinforcing ring 5 is fixedly connected to the outside of the sealing ring 1, a reinforcing pipe 6 is fixedly connected to the inner wall of the sealing ring 1, there are two reinforcing rings 5, the two reinforcing rings 5 ​​are symmetrically distributed on the sealing ring 1, the reinforcing ring 5 can prevent the sealing ring 1 from expanding outwards, the reinforcing ring 5 contacts the connecting pipe 2, and an inclined surface is arranged on the inner side of the auxiliary ring 4, which can guide the inserted pipe fitting.

[0022] See also Figure 1 , Figure 4 The inflation mechanism 3 includes an inflation tube 31, the inflation tube 31 is fixedly connected to the inside of the connecting tube 2, a support frame 32 is fixedly connected to the middle of the inner wall of the inflation tube 31, a guide pin 33 is slidably connected to the inside of the support frame 32, and a sealing plug 34 is fixedly connected to the end of the guide pin 33 close to the connecting tube 2, a spring 35 is arranged on the outside of the guide pin 33, and a sealing cover 36 is threadedly connected to the inside of the end of the inflation tube 31 away from the sealing plug 34, and the guide pin 33 can guide the movement of the sealing plug 34.

[0023] See also Figure 1 , Figure 4The sealing plug 34 is in contact with the inflation tube 31, and the guide pin 33 is located inside the sealing cover 36 and does not contact the sealing cover 36. The sealing plug 34 can seal the inflation tube 31. A sealing ring 37 is fixedly connected to the inside of the inflation tube 31, and the sealing ring 37 is in contact with the sealing cover 36. The sealing ring 37 can increase the sealing between the sealing cover 36 and the inflation tube 31. One end of the spring 35 is fixedly connected to the support frame 32, and the other end of the spring 35 is fixedly connected to the guide pin 33. The spring 35 can drive the guide pin 33 to automatically reset through elastic force.

[0024] The specific implementation process of the utility model is as follows: when in use, the sealing ring 1 is placed into the pipe mouth of the oil pump, and then the pipeline of the air pump is inserted into the interior of the inflation tube 31. When the interior of the inflation tube 31 is inflated, when the air pressure is greater than the elastic force of the spring 35, the air pressure pushes the sealing plug 34 to move. The sealing plug 34 can compress the spring 35 through the guide pin 33 during the movement. When the sealing plug 34 is separated from the inflation tube 31, air can be inflated into the interior of the sealing ring 1. When the air pressure inside the inflation tube 31 reaches a certain value, the sealing performance of the sealing ring 1 to the oil pump pipe mouth can be guaranteed. After the inflation is completed, the pipeline of the air pump is separated from the inflation tube 31. After separation, the spring 35 is reset. The spring 35 can drive the sealing plug 34 to automatically reset through the elastic force to block the inflation tube 31. Then the sealing cover 36 is screwed into the interior of the inflation tube 31, which can effectively maintain the air pressure inside the sealing ring 1, thereby effectively ensuring the sealing.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing ring for an automobile engine oil pump, comprising a sealing ring (1), characterized in that: A connecting pipe (2) is fixedly connected to the upper right end of the sealing ring (1), an air charging mechanism (3) is arranged on the connecting pipe (2), two auxiliary rings (4) symmetrically distributed up and down are fixedly connected to the inside of the sealing ring (1), a reinforcing ring (5) is fixedly connected to the outside of the sealing ring (1), and a reinforcing pipe (6) is fixedly connected to the inner wall of the sealing ring (1).

2. A sealing ring for an automobile engine oil pump according to claim 1, characterized in that: The number of the reinforcement rings (5) is two, and the two reinforcement rings (5) are symmetrically distributed on the sealing ring (1).

3. The sealing ring for an automobile engine oil pump according to claim 1, characterized in that: The reinforcement ring (5) is in contact with the connection pipe (2), and an inclined surface is provided on the inner side of the auxiliary ring (4).

4. The sealing ring for an automobile engine oil pump according to claim 1, characterized in that: The inflation mechanism (3) comprises an inflation tube (31), the interior of the connecting tube (2) is fixedly connected to the inflation tube (31), the middle part of the inner wall of the inflation tube (31) is fixedly connected to a support frame (32), the interior of the support frame (32) is slidably connected to a guide pin (33), one end of the guide pin (33) close to the connecting tube (2) is fixedly connected to a sealing plug (34), a spring (35) is arranged on the outside of the guide pin (33), and the interior of one end of the inflation tube (31) away from the sealing plug (34) is threadedly connected to a sealing cover (36).

5. A sealing ring for an automobile engine oil pump according to claim 4, characterized in that: The sealing plug (34) is in contact with the inflation tube (31), and the guide pin (33) is located inside the sealing cover (36) and does not contact the sealing cover (36).

6. A sealing ring for an automobile engine oil pump according to claim 4, characterized in that: A sealing ring (37) is fixedly connected to the interior of the inflation tube (31), and the sealing ring (37) is in contact with the sealing cover (36).

7. The sealing ring for an automobile engine oil pump according to claim 4, characterized in that: One end of the spring (35) is fixedly connected to the support frame (32), and the other end of the spring (35) is fixedly connected to the guide pin (33).

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