CN214533129U

CN214533129U - Casing structure of engine oil quality sensor

Info

Publication number: CN214533129U
Application number: CN202120436167.8U
Authority: CN
Inventors: 刘慧琳; 魏轶伟; 罗竟成; 刘凯
Original assignee: Wuhan Shendong Auto Electronics Co ltd
Current assignee: Wuhan Shendong Auto Electronics Co ltd
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2021-10-29
Anticipated expiration: 2031-02-26

Abstract

The utility model discloses a shell structure of machine oil quality sensor, include: the upper shell is of a cylindrical structure, and the periphery of the upper shell is provided with a first continuous thread; the connecting shell is of a cylindrical structure and is coaxially arranged with the upper shell, one end of the connecting shell is fixedly connected with the other end of the upper shell, and the diameter of the connecting shell is larger than that of the upper shell; the lower shell is of a cylindrical structure and is coaxially fixed at the other end of the connecting shell, the diameter of the lower shell is equal to that of the connecting shell, and continuous threads II are arranged on the peripheries of the lower shell and the connecting shell; the sleeve is sleeved on the periphery of the lower shell and the connecting shell and is in threaded connection with the lower shell and the connecting shell; wherein, the rotating direction of the continuous screw thread I is opposite to that of the continuous screw thread II. The utility model discloses an go up casing and mounting hole, connection casing and telescopic dual locking mechanism, guarantee the stability of being connected and the sealing reliability of machine oil quality sensor and engine case, realize the real-time, the accurate measurement to the machine oil quality under the engine work/non-operating condition.

Description

Casing structure of engine oil quality sensor

Technical Field

The utility model relates to an engine oil quality sensor field. More specifically, the utility model relates to a shell structure of machine oil quality sensor.

Background

The engine oil plays a crucial role in the work of the engine, and the quality of the engine oil determines the working quality and the working life of the engine to a great extent. The quality of engine oil in an engine is monitored in real time by installing an oil quality sensor near an engine oil tank, and when the monitored quality parameter of the engine oil exceeds a specified threshold range, the engine oil needs to be replaced in time so as to prevent the normal work of the engine from being influenced by the poor quality of the engine oil.

However, a common engine oil quality sensor is directly mounted on an engine and is communicated with an oil tank to collect an oil sample for detection, the engine has large vibration in the working process, the internal working temperature is high, the engine oil quality sensor is easy to leak oil in the environment or is directly disconnected from the engine shell, and the problems that the engine oil quality cannot be detected or the detection result is inaccurate are caused.

In order to solve the above problems, it is necessary to provide a novel housing structure of the engine oil quality sensor, so as to improve the connection stability of the engine oil quality sensor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a shell structure of machine oil quality sensor, through last casing and mounting hole, connection casing and telescopic dual locking mechanism, guarantee machine oil quality sensor and engine case's stability of being connected and sealing reliability, realize the real-time, accurate measurement to the machine oil quality under the engine work/non-operating condition.

To achieve these objects and other advantages in accordance with the purpose of the invention, a housing structure of an oil quality sensor is provided, including:

the oil pump comprises an upper shell, a lower shell and a pump body, wherein the upper shell is of a cylindrical structure, continuous threads I are arranged on the periphery of the upper shell, and an oil inlet groove and an oil outlet groove are formed in one end of the upper shell at intervals;

the connecting shell is of a cylindrical structure and is coaxially arranged with the upper shell, one end of the connecting shell is fixedly connected with the other end of the upper shell, and the diameter of the connecting shell is larger than that of the upper shell;

the lower shell is of a cylindrical structure and is coaxially fixed at the other end of the connecting shell, the diameter of the lower shell is equal to that of the connecting shell, and continuous threads II are arranged on the peripheries of the lower shell and the connecting shell;

the sleeve is sleeved on the peripheries of the lower shell and the connecting shell and is in threaded connection with the lower shell and the connecting shell;

wherein the first continuous thread and the second continuous thread rotate in opposite directions.

Preferably, the housing structure of the engine oil quality sensor further comprises a circulating pipeline, wherein the circulating pipeline comprises a liquid inlet pipeline and a liquid outlet pipeline which are respectively arranged on two sides of the outer end part of the lower housing; and one end of the cooling pipeline is communicated with the liquid inlet pipeline, and the other end of the cooling pipeline sequentially penetrates through the lower shell, the upper shell and the lower shell and is communicated with the liquid outlet pipeline.

Preferably, the housing structure of the engine oil quality sensor, the circulation pipeline further includes a connection pipeline, the connection pipeline is arranged inside the lower housing and communicated with the liquid inlet pipeline and the liquid outlet pipeline, and the connection pipeline and the cooling pipeline form a closed cavity inside the lower housing and the connection housing.

Preferably, the housing structure of the oil quality sensor further includes an elastic washer, the elastic washer is sleeved on the outer side of the upper housing and is abutted against the end face of the connecting housing, and the diameter of the elastic washer is equal to that of the connecting housing.

Preferably, in the housing structure of the oil quality sensor, a groove is formed at an outer end of the lower housing.

Preferably, in the housing structure of the oil quality sensor, the upper end surface of the sleeve is flush with the upper end surface of the connection housing, and the height of the sleeve is equal to the height of the upper housing.

The utility model discloses at least, include following beneficial effect:

1. the double locking mechanism of the upper shell and the mounting hole, and the connecting shell and the sleeve ensures the connection stability and the sealing reliability of the engine oil quality sensor and the engine shell, and realizes the real-time and accurate measurement of the engine oil quality in the working/non-working state of the engine;

2. the elastic washer is arranged at the mounting hole for connecting the engine and the engine oil quality sensor, so that the relative displacement (shaking) of the engine oil quality sensor during the working of the engine is reduced, and the anti-seismic performance of the engine oil quality sensor is improved;

3. through set up the circulating line in that the casing is inside, the space that detects is carried out to the sample machine oil of gathering with the inside separation of casing naturally, and the space outside is surrounded by the circulating line, can realize the regulation to detecting the ambient temperature, prevents that machine oil temperature variation from to measuring result's influence, is favorable to improving sensor measured data's accuracy.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic cross-sectional view of a housing structure of an oil quality sensor according to an embodiment of the present invention.

Description of reference numerals:

1. an upper housing; 2. connecting the shell; 3. a lower housing; 4. a groove; 51. an oil inlet groove; 52. an oil outlet groove; 6. an elastic washer; 7. a sleeve; 81. a liquid inlet pipeline; 82. a cooling duct; 83. a liquid outlet pipeline; 84. and connecting the pipelines.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

As shown in fig. 1, the utility model provides a housing structure of machine oil quality sensor, include:

the oil-gas separator comprises an upper shell 1, a lower shell and a plurality of oil outlets, wherein the upper shell 1 is of a cylindrical structure, continuous threads I are arranged on the periphery of the upper shell, and an oil inlet groove 51 and an oil outlet groove 52 are formed in one end of the upper shell 1 at intervals;

the connecting shell 2 is of a cylindrical structure and is coaxially arranged with the upper shell 1, one end of the connecting shell 2 is fixedly connected with the other end of the upper shell 1, and the diameter of the connecting shell 2 is larger than that of the upper shell 1;

the lower shell 3 is of a cylindrical structure and is coaxially fixed at the other end of the connecting shell 2, the diameter of the lower shell 3 is equal to that of the connecting shell 2, and continuous threads II are arranged on the peripheries of the lower shell 3 and the connecting shell 2;

the sleeve 7 is sleeved on the peripheries of the lower shell 3 and the connecting shell 2 and is in threaded connection with the lower shell and the connecting shell;

Among the above-mentioned technical scheme, go up casing 1 and be connected casing 2 and form the bolt structure, go up casing 1 and as the double-screw bolt, connect casing 2 as the nut, be equipped with on the engine with continuous screw thread one supporting installation screw hole, will go up the tip of casing 1 and insert installation screw hole makes oil feed tank 51 and oil outlet groove 52 all insert inside the engine oil tank, again from the whole rotatory casing of 3 one end of lower casing, make the external screw thread of going up casing 1 and the installation screw hole cooperation of engine tighten to, with the casing initial erection of machine oil quality sensor on the engine. Lower casing 3 and connection casing 2 integrated into one piece, the screw thread of lower casing 3 periphery also sets up in succession with the screw thread of being connected casing 2 periphery, the inner wall of sleeve 7 be equipped with the supporting screw thread of continuous screw thread two is screwed up through continuous screw thread two with the rotation of being connected casing 2 to the butt is on the outside terminal surface of the installation screw hole of engine, thereby, will connect casing 2 and last casing 1 as whole further with engine locking. Because the rotating directions of the continuous screw thread I and the continuous screw thread II are opposite, when vibration generated by the work of an engine is transmitted to the connection part of the engine oil quality sensor and the engine, the axial force at the threaded mounting hole of the engine is limited by the double-layer threaded connection structure, the connection cannot be influenced, and the instantaneously generated radial force in any direction is offset by the threaded connection structure with the opposite rotating direction: when the connection of the first continuous thread part generates a movement trend opposite to the screwing direction, the movement trend which is the same as the screwing direction exists in the second continuous thread part, the stability of the connection structure is ensured through the mutual limitation of the first continuous thread part and the second continuous thread part, and the influence on the connection structure of the engine oil quality sensor in the working process of the engine is avoided. In addition, continuous screw thread two on the casing 3 sets up in one section adjacent with connecting casing 2 down, leaves one section not be equipped with the screwed lateral wall in the lower part periphery of casing 3 down to use the rotatory casing 3 down of instrument, drive the installation screw hole cooperation of casing 1 and engine and screw up. In the manufacturing process of the engine oil quality sensor, a channel for the inlet and outlet of the sampled oil, a detection cavity and a space for installing engine oil quality measuring equipment (quality sensor and the like) can be respectively arranged in the upper shell 1, the connecting shell 2 and the lower shell 3 according to design requirements, and the outlet end of the quality sensor is arranged at the end part of the lower shell 3.

The utility model discloses an go up casing and mounting hole, connection casing and telescopic dual locking mechanism, guarantee the stability of being connected and the sealing reliability of machine oil quality sensor and engine case, realize the real-time, the accurate measurement to the machine oil quality under the engine work/non-operating condition. Meanwhile, the structure connected through the threads is convenient for detaching the engine oil quality sensor for inspection or testing the internal oil sample independently when the engine oil quality sensor measures that the engine oil quality is poor (the measurement result exceeds a specified threshold value) or the engine oil quality sensor reports errors and fails so as to confirm the failure condition.

In another technical solution, the housing structure of the engine oil quality sensor further includes a circulation pipeline, which includes a liquid inlet pipeline 81 and a liquid outlet pipeline 83, respectively disposed at two sides of the outer end of the lower housing 3; cooling tube 82, its one end with inlet channel 81 intercommunication, the other end passes in proper order down casing 3 connect casing 2 go up casing 1, pass through connect casing 2 with down casing 3 with outlet channel 83 intercommunication. Among the above-mentioned technical scheme, the engine during operation can produce high temperature, and long-time operation back machine oil temperature also can rise gradually, and machine oil leads to the inside temperature of casing to rise after getting into machine oil quality sensor inside through oil feed tank 51, can influence the work of electronic component such as quality sensor, and under expend with heat and contract with cold effect, machine oil quality sensor's casing high temperature can lead to the interference fit of threaded connection department, probably has the risk of damaging the screw thread. Therefore, the circulating pipeline is arranged in the shell of the engine oil quality sensor and is made to wind around the shell along the shape of the shell for a circle, so that the temperature in the engine oil sensor can be effectively reduced when the engine works, the temperature is kept in a certain range, the connection stability of the shell of the engine oil quality sensor and the engine is ensured, and the measurement accuracy of the quality sensor is improved.

In another technical solution, in the housing structure of the oil quality sensor, the circulation pipeline further includes a connection pipeline 84, which is disposed inside the lower housing 3 and communicates the liquid inlet pipeline 81 and the liquid outlet pipeline 83, and the connection pipeline 84 and the cooling pipeline 82 form a closed cavity inside the lower housing 3 and the connection housing 2. Specifically, a cooling liquid circulation loop is formed in the shell by the cooling pipeline 82 of the circulation pipeline surrounding the shell in a circle, a connecting pipeline 84 is additionally arranged at the end part of the cooling pipeline 82 to communicate the two ends of the cooling pipeline 82, so that on one hand, the liquid exchange at the two ends of the circulation pipeline is accelerated, the coverage range of the circulation pipeline in the shell is enlarged, and the cooling effect is improved; on the other hand, the closed loop pipeline return circuit that connecting tube 84 and cooling tube 82 formed can be naturally connecting casing 2 and the inside closed environment that is surrounded by circulating line that forms of casing 3 down, and the internal portion of casing is hollowed out and can be formed the closed cavity that supplies quality sensor installation and oil appearance to detect this part to, it is more reasonable to make the casing inner space of machine oil quality sensor divide, makes things convenient for other subassemblies of machine oil quality sensor to install and work.

In another technical solution, the housing structure of the oil quality sensor further includes an elastic washer 6, which is sleeved outside the upper housing 1 and is abutted against the end surface of the connecting housing 2, and a diameter of the elastic washer 6 is equal to a diameter of the connecting housing 2. The elastic gasket 6 is clamped at the joint of the upper shell 1 and the connecting shell 2, a mounting groove matched with the elastic gasket 6 is arranged at the opening of a mounting threaded hole of the engine, under the state that the shell is mounted, the two sides of the elastic gasket 6 are tightly attached to the upper end face of the connecting shell 2 and the inner end face of the mounting threaded hole and tightly pressed, the sealing performance of the connection of the upper shell and the mounting threaded hole of the engine is enhanced, the vibration reduction effect can be achieved, the continuous thread I and the continuous thread II are connected into a whole, the connection reliability of the upper shell and the connecting shell is enhanced, and the overall stability of the engine oil quality sensor is improved.

In another technical solution, in the housing structure of the engine oil quality sensor, a groove 4 is provided at an outer end of the lower housing 3. The groove 4 is arranged as a connector for mounting the oil quality sensor, is electrically connected with the wiring end of an electronic element such as the quality sensor in the lower shell 3, and is of a structure that the end part of the lower shell 3 is inwards concave, so that the connector is positioned in the lower shell 3 after being mounted, the connector is prevented from being damaged due to external impact, and meanwhile, external liquid, dust and the like can be prevented from entering the connector to influence the signal transmission of the sensor.

In another technical solution, in the case structure of the oil quality sensor, the upper end surface of the sleeve 7 is flush with the upper end surface of the connection case 2, and the height of the sleeve 7 is equal to the height of the upper case 1. In the technical scheme, the integral structure of the upper shell 1, the connecting shell 2 and the lower shell 3 is firstly installed, after the upper shell 1 is locked with the installation threaded hole of the engine, the sleeve 7 is screwed in from the outer side of the lower shell 3 until all threads on the side wall of the connecting shell 2 are covered, at the moment, the sleeve 7 abuts against the end face of the engine shell outside the installation threaded hole, and the connecting shell 2 is further locked with the engine; and because the height of sleeve 7 equals the height of upper housing 1, the distance (height) of its threaded connection equals, can be better offset radial unbalanced force through reverse screw thread, prevent that the casing of machine oil quality sensor and engine installation screw hole from taking place the pine and taking place to take place to get rid of, lead to oil leak or measure inaccurate scheduling problem.

While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.

Claims

1. A housing structure of an oil quality sensor, comprising:

2. The casing structure of the oil quality sensor according to claim 1, further comprising a circulation pipe including a liquid inlet pipe and a liquid outlet pipe which are respectively provided at both sides of an outer end portion of the lower casing; and one end of the cooling pipeline is communicated with the liquid inlet pipeline, and the other end of the cooling pipeline sequentially penetrates through the lower shell, the upper shell and the lower shell and is communicated with the liquid outlet pipeline.

3. The casing structure of the oil quality sensor according to claim 2, wherein the circulation pipe further includes a connection pipe that is provided inside the lower casing and communicates the liquid inlet pipe and the liquid outlet pipe, the connection pipe and the cooling pipe forming a closed cavity inside the lower casing and the connection casing.

4. The casing structure of the oil quality sensor according to claim 1, further comprising an elastic washer fitted around an outer side of the upper casing and abutting against an end surface of the connection casing, the elastic washer having a diameter equal to a diameter of the connection casing.

5. The casing structure of the oil quality sensor according to claim 1, wherein the outer end portion of the lower casing is provided with a groove.

6. The casing structure of the oil quality sensor according to claim 1, wherein an upper end surface of the sleeve is flush with an upper end surface of the connection casing, and a height of the sleeve is equal to a height of the upper casing.