Engine oil sensor outgoing line installation device
By using the combination of sealing, outlet thread pipe and limiting parts in the engine oil sensor outlet installation device, the problems of loosening of sensor outlets and falling off the seal plug are solved, the reliability of the sensor and the stability of the engine are improved, and the risk of abnormal fire stalling is avoided.
Patent Information
- Application Number
- CN202421767036.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-24
AI Technical Summary
The existing engine oil sensor outgoing installation device can easily cause torque reduction and sealing plug to fall off under long-term water absorption, vibration and thermal effects, and the sensor outgoing is loose, affecting the accuracy of detection and may even cause abnormal engine shutdown.
The sealed, outlet threaded pipe and the limiting parts located on the inner wall of the outlet threaded pipe are used to ensure the fixation and waterproof function of the sensor outlet. By providing a plurality of limiting parts on the inner wall of the outlet threaded tube, the axial friction and sealing area are enhanced, the sealing plug is prevented from falling off, and the friction between the fixing ring and the mounting base is enhanced through the knurled structure.
It effectively prevents the sensor outgoing and the sealing plug from falling off, improves the reliability of the sensor, avoids the risk of abnormal engine stalling, and maintains torque stability during long-term use.
Smart Images
Figure CN222924501U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of engines, and particularly relates to an installation device for the wire outlet of an engine oil sensor. Background Art
[0002] An engine is a machine that can convert other forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, electric motors, etc. For example, an internal combustion engine usually converts chemical energy into mechanical energy. An engine is applicable to power generating devices and can also refer to the entire machine including the power device.
[0003] After the insert combination used in the prior art absorbs water for a long time, as well as problems of vibration and thermal effects, the torque decreases. At the same time, the rubber sealing plug is prone to falling off after assembly, and the wire outlet of the sensor is easy to loosen and rotate, affecting the correctness of detection. Seriously, it will cause abnormal flameout of the engine. Content of the Utility Model
[0004] I. Technical Problems to be Solved
[0005] Aiming at the deficiencies of the prior art, the utility model provides an installation device for the wire outlet of an engine oil sensor, which uses a sealing plug, a wire outlet threaded pipe and a limiting member located on the inner wall of the wire outlet threaded pipe to cooperate to prevent the wire outlet of the sensor from loosening.
[0006] II. Specific Technical Solutions
[0007] An installation device for the wire outlet of an engine oil sensor includes a mounting base (1), a wire outlet threaded pipe (2) is passed through the mounting base (1), a fixing ring (3) is arranged on the outer side of one end of the wire outlet threaded pipe (2), and the fixing ring (3) cooperates with the mounting base (1); a limiting member (4) is arranged in the inner wall of the other end of the wire outlet threaded pipe (2); a sealing plug (5) is arranged in the threaded pipe (2), a wire passing hole (6) is opened in the middle of the sealing plug (5), and the side wall cooperates with the limiting member (4).
[0008] During use, one end of the wire outlet threaded pipe (2) is passed through the engine housing, the sensor wire is passed through the wire passing hole (6) in the middle of the sealing plug (5), the sensor is placed inside the engine, the other end of the wire is connected to the controller, then the sealing plug (5) is inserted into the wire outlet threaded pipe (2) so that the side wall of the sealing plug (5) closely cooperates with the wire outlet threaded pipe (2) and the limiting member (4) to play a fixing and waterproof function. Finally, a nut is used to cooperate with the wire outlet threaded pipe (2) to fixedly install the whole device on the engine.
[0009] As an optimization: The limiting members (4) are circumferentially distributed on the inner wall of the wire outlet threaded pipe (2). By being evenly distributed on the inner wall of the wire outlet threaded pipe (2), the limiting members (4) are more closely attached to the entire wire outlet threaded pipe (2), improving the tightness.
[0010] As an optimization: The other end of the wire outlet threaded pipe (2) is curled inwards and extends towards the axis direction to form the limiting member (4). It is formed by die stamping in one piece, with a simple and rapid processing technology and low cost.
[0011] As an optimization: The edge of the limiting member (4) is evenly provided with notches. The setting of the notches facilitates the assembly of the sealing plug (5), and at the same time increases the contact area between the sealing plug (5) and the limiting member (4).
[0012] As an optimization: The connection side of the fixing ring (3) and the mounting seat (1) is provided with knurling. The mounting seat (1) and the fixing ring (3) are integrally formed by injection molding. The provided knurling structure increases the friction between the fixing ring (3) and the mounting seat (1), preventing loosening and detachment during subsequent use due to problems such as vibration and thermal effects.
[0013] As an optimization: At least two of the limiting members (4) are axially arranged along the axis on the inner wall of the wire outlet threaded pipe (2). The setting of multiple limiting members (4) makes the axial friction in the wire outlet threaded pipe (2) greater, and the sealing area is also greatly improved.
[0014] As an optimization: The outer end of the sealing plug (5) is a cavity structure. The outer end of the sealing plug (5) is turned over and buckled on the port of the wire outlet threaded pipe (2). By using the cooperation of the flanging of the sealing plug (5) and the port of the wire threaded pipe (2), there is no direct gap between the port part and the outside, improving the waterproof and dustproof effects.
[0015] The beneficial effects of the present utility model are as follows: The fixing ring (3) of the present utility model is formed into a gear shape by knurling, making the mounting seat (1) more firm after injection molding, and the torque will not decrease even after long-term water absorption. In order to prevent the rubber sealing plug from falling off, a limiting member (4) is provided in the wire outlet threaded pipe (2). During assembly, the sealing plug is sunk below the limiting member (4) to prevent falling off, improving the waterproof and dustproof effects, enhancing the reliability of the sensor, and effectively solving the problem of abnormal engine flameout. Brief Description of the Drawings
[0016] Figure 1 It is a schematic diagram of the internal structure of the present utility model.
[0017] Figure 2 It is a schematic diagram of the end structure of the wire outlet threaded pipe in the present utility model.
[0018] Figure 3 is Figure 2Enlarged view of A.
[0019] Figure 4 Structural schematic diagram of the sealing plug in the present utility model.
[0020] Figure 5 Structural schematic diagram of the second embodiment in the present utility model. Detailed implementation manners
[0021] The following elaborates on the preferred embodiments of the present utility model in conjunction with the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0022] Embodiment 1:
[0023] As Figures 1-4 shown: An installation device for the wire outlet of an engine oil sensor is provided with a plastic part mounting seat 1. A wire outlet threaded pipe 2 is inserted through the mounting seat 1. A fixing ring 3 is arranged on the outer side of one end of the wire outlet threaded pipe 2. The fixing ring 3 cooperates with the mounting seat 1. Knurling is arranged on the connecting side of the fixing ring 3 and the mounting seat 1. The fixing ring 3 and the mounting seat 1 are injection molded. The knurling can improve the friction force.
[0024] A limiting member 4 is arranged in the inner wall of the other end of the wire outlet threaded pipe 2; a sealing plug 5 made of rubber is arranged in the threaded pipe 2. A wire passing hole 6 is opened in the middle of the sealing plug 5, and the side wall cooperates with the limiting member 4.
[0025] The other end of the wire outlet threaded pipe 2 is curled inward and extends in the axial direction to form the limiting member 4. Notches are evenly arranged on the edge of the limiting member 4; the outer end of the sealing plug 5 is a cavity structure. The outer end of the sealing plug 5 is folded and buckled on the port of the wire outlet threaded pipe 2. Among them, the port of the wire threaded pipe 2 is a smooth rod without threads.
[0026] The working principle of this embodiment: Pass the end of the wire outlet threaded pipe 2 through the shell of the engine, then insert the wire of the oil sensor into the end of the wire outlet threaded pipe 2 on one side of the engine. The free end of the wire passes through the wire passing hole 6 in the sealing plug 5. Then, insert the sealing plug 5 into the inside of the wire outlet threaded pipe 2. Under the action of the limiting member 4 and the elasticity of the sealing plug 5, the sealing plug 5 is tightly combined with the inner wall of the wire outlet threaded pipe 2. Fold the outer end of the sealing plug 5 and buckle it on the port of the wire outlet threaded pipe 2 to seal the port. Finally, cooperate with the nut and the wire outlet threaded pipe 2 to fasten the whole mechanism on the engine shell.
[0027] Embodiment 2:
[0028] In the case where other structures are the same as those in the first embodiment, as a deformation optimization, as shown in FIG. 5, two limiting members 4 are arranged along the axis on the inner wall of the outlet threaded pipe 2.
[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention, and the scope of the present invention is defined by the appended claims.
Claims
1. An engine oil sensor outlet wire installation device, comprising a mounting seat (1), characterized in that: A threaded wire pipe (2) is inserted into the mounting seat (1), and a fixing ring (3) is arranged on the outside of one end of the threaded wire pipe (2), and the fixing ring (3) cooperates with the mounting seat (1); A limiting member (4) is provided in the inner wall of the other end of the outlet threaded tube (2); A sealing plug (5) is arranged in the threaded pipe (2), a wire-passing hole (6) is provided in the middle of the sealing plug (5), and the side wall cooperates with the limiting member (4).
2. The engine oil sensor outlet installation device according to claim 1, characterized in that: The limiting member (4) is distributed circumferentially on the inner wall of the outlet threaded tube (2).
3. The engine oil sensor outlet wire installation device according to claim 1, characterized in that: The other end of the outlet threaded tube (2) is curled inwardly and then extends in the axial direction to form the limiting member (4).
4. The engine oil sensor outlet installation device according to claim 3, characterized in that: The edge of the limiting member (4) is evenly provided with notches.
5. The engine oil sensor outlet installation device according to claim 1, characterized in that: The connection side between the fixing ring (3) and the mounting seat (1) is provided with knurling.
6. The engine oil sensor outlet wire installation device according to claim 1, characterized in that: At least two stoppers (4) are arranged on the inner wall of the outlet threaded tube (2) along the axis.
7. The engine oil sensor outlet wire installation device according to claim 1, characterized in that: The outer end of the sealing plug (5) is a hollow structure, and the outer end of the sealing plug (5) is folded and snapped onto the port of the outlet threaded pipe (2).