Convenient-to-mount automobile temperature sensor

Abstract

The invention discloses a convenient-to-install automobile temperature sensor, and belongs to the technical field of automobile temperature sensors, the convenient-to-install automobile temperature sensor comprises a wiring terminal seat used for data connection, a fixed column is fixedly installed at the lower end of the wiring terminal seat, an outer column body fixedly sleeves the outer side of the fixed column, and an inductive head is arranged below the fixed column; meanwhile, the inductive head is connected with the wiring end seat through a lead; the outer side of the outer column body is sleeved with an adjusting seat, adjusting push plates are evenly and fixedly arranged at the lower end of the adjusting seat, limiting assemblies clamped to the positions of the mounting holes are arranged at the lower end of the outer column body, and meanwhile the adjusting push plates drive the limiting assemblies to conduct expansion clamping in the downward moving process. The outer column body is further provided with a bag body sealing piece used for improving the installation sealing performance, and a movable seat is installed at the lower end of the fixed column in a telescopic mode. The convenient-to-mount automobile temperature sensor can be conveniently and hermetically mounted, and can be adaptively adjusted according to the liquid level of the cooling liquid, so that the detection precision is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile temperature sensors, in particular to a portable automobile temperature sensor. Background Art

[0002] In the modern automotive industry, automotive temperature sensors, as key sensing devices, play a vital role. They are widely used to monitor the temperature of many key components such as engines and braking systems, playing a decisive role in ensuring vehicle safety and performance.

[0003] The prior art (publication number: CN221055902U, Chinese patent with publication date of 2024-05-31) discloses a high-performance automobile temperature sensor, comprising a high-performance automobile temperature sensor body and a connecting port, wherein the bottom of the high-performance automobile temperature sensor body is inserted into the interior of the connecting port; further comprising: a protrusion is fixed to the bottom of the high-performance automobile temperature sensor body, and the outer end of the protrusion extends into the interior of a slide groove to form a locking mechanism, wherein the slide groove is provided inside the connecting port; a locking block is slidably provided at the outer end of the protrusion, and the outer end of the locking block is semicircularly arranged, the high-performance automobile temperature sensor is installed with a protrusion, and by rotating the high-performance automobile temperature sensor body, the high-performance automobile temperature sensor body is rotated to drive the protrusion to rotate, and the rotation of the protrusion can form a locking mechanism inside the slide groove, so that the high-performance automobile temperature sensor body can be quickly installed inside the connecting port, thereby achieving the purpose of quick disassembly and assembly; The prior art (publication number: CN220649798U, Chinese patent publication date: 2024-03-22) discloses a sealed and reliable automobile temperature sensor, comprising a fixing plate, a connecting plate fixedly connected to the bottom of the fixing plate, an opening provided inside the fixing plate, a sealing gasket fixedly connected to the inner wall of the opening, a heat-insulating layer provided on the inner wall of the fixing plate, a plug-in connector provided at the upper end of the fixing plate, an electric control unit provided inside the fixing plate, a connector fixedly connected to the upper end of the electric control unit, connected to the automobile circuit through the rear end of the plug-in connector, and plugged into the connector inside the fixing plate. The elasticity of the sealing gasket makes the inner wall of the sealing gasket fit tightly with the surface of the plug-in connector, reducing the gap between the plug-in connector and the opening, thereby improving the sealing, reducing the impact of dust entering the interior of the fixing plate on the electric control unit, and increasing reliability. The heat-insulating layer is used to isolate the high temperature generated during the operation of the automobile, thereby increasing the service life of the electric control unit. Prior art (Chinese patent publication number: CN213688729U, publication date: July 13, 2021) discloses an easily cleanable automotive temperature sensor. The sensor comprises an arc-shaped fixed housing with a fixing block A on one side. A hinged arc-shaped protective housing is attached to the other side of the housing. A fixing block B is attached to one side of the housing. Springs A and B are evenly spaced from left to right at the top and bottom of the inner wall of the housing. Arc-shaped clamping blocks A and B are located at the bottom and top of each spring, respectively. A temperature sensor is positioned between these two blocks. A nut is located at the top of the outer periphery of the temperature sensor. Positioning blocks are located on the bottom of each side of the housing, each with a fixing hole B. This conveniently secures automotive temperature sensors of varying specifications and facilitates assembly and disassembly, making it easy to clean the sensors. The sensor is therefore suitable for widespread adoption and use.

[0004] Most existing automotive temperature sensors use a single threaded connection or snap-fit ​​structure for installation and positioning, which makes it impossible to ensure sealing after convenient installation, resulting in the possibility of coolant leakage during vehicle operation, and has certain usage defects. Summary of the Invention

[0005] The object of the present invention is to provide a portable automobile temperature sensor to solve the problem raised in the above-mentioned background art that most automobile temperature sensors on the market currently use a single threaded connection or a snap-fit ​​structure for installation and positioning, which makes it impossible to ensure the sealing after convenient installation, resulting in the possibility of coolant leakage during the operation of the vehicle.

[0006] To achieve the above object, the present invention provides the following technical solution: a portable automotive temperature sensor, comprising a terminal block for data connection, a fixing column fixedly mounted at the lower end of the terminal block, an outer fixed sleeve of the fixing column being provided with an outer cylinder, and a sensing head being provided below the fixing column, and the sensing head and the terminal block being connected by a wire; The outer side of the outer cylinder is sleeved with an adjustment seat, and the lower end of the adjustment seat is evenly fixed with an adjustment push plate, and the lower end of the outer cylinder is provided with a limit assembly that is clamped in the mounting hole position. At the same time, the limit assembly is driven to expand and clamp during the downward movement of the adjustment push plate. The outer cylinder is also provided with a sac seal for improving the installation sealing. The lower end of the fixed column is telescopically installed with a movable seat driven by buoyancy, and the induction head is fixedly installed at the lower end center position of the movable seat, and a cleaning assembly driven by buoyancy is provided on the outer side of the movable seat.

[0007] Preferably, the outer cylinder passes through the mounting hole on the automobile pipeline, and the movable seat and the induction head are immersed in the coolant in the pipeline.

[0008] Preferably, a first spring is fixedly connected between the adjustment seat and the upper end of the outer cylinder, and an adjustment push plate arranged at the lower end of the adjustment seat slides through the outer cylinder with interference fit, and the lower end of the adjustment push plate contacts the limit assembly during the elastic downward movement.

[0009] Preferably, the limit assembly includes an elastic locating part that is evenly fixedly installed on the lower end of the outer cylinder, and the initial outer diameter of the elastic locating part is smaller than the outer diameter of the outer cylinder, and the positions of the push plate and the elastic locating part are adjusted to correspond to each other up and down. At the same time, the push plate is adjusted to push the elastic locating part to deform and expand during the downward movement, and the deformed elastic locating part is fit and clamped in the position of the pipeline mounting hole.

[0010] Preferably, the bag sealing member includes an air storage bag fixedly mounted on the outside of the elastic positioning member, and the air storage bag is squeezed by the inner wall of the pipeline mounting hole during the deformation of the elastic positioning member, and a sealing elastic bag with an annular structure is embedded in the outer side of the outer cylinder. At the same time, the air storage bag and the sealing elastic bag are connected by a pipeline, and after the sealing elastic bag is pressurized, air is supplied to the sealing elastic bag through the pipeline. After the sealing elastic bag expands, it is tightly attached to the inner wall of the mounting hole and the outer wall of the outer cylinder.

[0011] Preferably, a buoyancy cavity is opened on the inner side of the movable seat, and the movable seat is raised and lowered according to the liquid level in the pipeline under the action of buoyancy, and a second spring is fixedly connected between the fixed column and the movable seat.

[0012] Preferably, the cleaning assembly includes a rotating ring rotatably mounted on the outer side of the upper end of the movable seat, and a magnetic ring is fixedly mounted above the rotating ring through a frame, and a magnetic sheet is fixedly mounted on the inner side of the lower part of the elastic positioning member, and at the same time, the magnetic poles of the opposing surfaces of the magnetic sheet and the magnetic ring are the same, and the rotating ring applies magnetic force to the elastic positioning member when driving the magnetic ring to move upward.

[0013] Preferably, a ball is embedded in the inner wall of the rotating ring, and a spiral guide groove is provided at the lower part of the fixed column, and the ball slides along the guide groove during the floating lifting process of the movable seat to drive the rotating ring to rotate.

[0014] Preferably, a scraper is evenly and fixedly connected to the lower side of the rotating ring, and the scraper is attached to the outer wall of the movable seat, and the rotating ring drives the scraper to rotate to realize automatic cleaning of the outer wall of the movable seat.

[0015] Compared with the prior art, the present invention has the following advantages: the portable automobile temperature sensor can be conveniently sealed and installed, and can be adaptively adjusted according to the coolant level to ensure detection accuracy. The specific contents are as follows; 1. It is equipped with an adjustment seat, an adjustment push plate, and an elastic positioning piece. Before installation, pull the adjustment seat toward the right side of the terminal seat so that the adjustment push plate slides upward on the inside of the outer cylinder. At this time, the elastic positioning piece fits the outside of the outer cylinder. Insert the outer cylinder into the mounting hole on the pipeline and loosen the adjustment seat. The adjustment seat can drive the adjustment push plate to move downward and reset, so that the adjustment push plate pushes the elastic positioning piece to elastically deform. The deformed elastic positioning piece fits and supports the inner wall of the mounting hole, thereby realizing effective positioning of the outer cylinder and convenient operation. 2. An air storage sac and a sealing elastic sac are provided. As the elastic positioning member deforms, it cooperates with the inner wall of the mounting hole to squeeze the air storage sac, allowing part of the gas in the air storage sac to enter the sealing elastic sac through the pipe. The expanded sealing elastic sac fits tightly between the mounting hole and the outer cylinder, thereby improving the installation sealing performance. 3. A movable seat and a rotating ring are provided. The movable seat will move upward under the buoyancy of the coolant, thereby causing the movable seat to drive the rotating ring to move upward synchronously. At this time, the magnetic ring on the rotating ring will exert a thrust on the elastic positioning member through the magnetic force of the magnetic sheet, further ensuring the positioning effect of the elastic positioning member; Furthermore, a scraper is provided. As the rotating ring moves upward, the ball rolls along the guide groove, thereby driving the rotating ring to rotate, so that the scraper on the outside of the rotating ring can automatically clean the impurities on the outside of the movable seat, ensuring the subsequent detection accuracy of the sensor head. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention when viewed from above; Figure 3 This is a schematic diagram of the explosion structure of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 5 For the present invention Figure 4 A in the middle is an enlarged structural diagram; Figure 6 This is a schematic diagram of the connection structure between the adjustment seat and the adjustment push plate of the present invention; Figure 7 This is a schematic diagram of the installation structure of the elastic positioning member and the sealing elastic bladder of the present invention; Figure 8 It is a schematic cross-sectional structural diagram of the movable seat of the present invention.

[0017] In the figure: 1. Terminal block; 2. Fixed column; 3. Movable seat; 301. Buoyancy cavity; 4. Induction head; 5. Outer cylinder; 6. Adjustment seat; 7. First spring; 8. Adjustment push plate; 9. Elastic positioning member; 10. Air storage bladder; 11. Sealing elastic bladder; 12. Magnetic sheet; 13. Second spring; 14. Rotating ring; 15. Ball; 16. Guide groove; 17. Magnetic ring; 18. Scraper. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Example 1: The existing automobile temperature sensor has a single installation structure, which cannot ensure convenient installation and sufficient installation sealing. In order to solve this technical problem, this embodiment discloses the following technical content, please refer to Figure 1-Figure 7The figure shows a portable automobile temperature sensor, comprising a terminal block 1 for data connection, a fixed column 2 being fixedly installed at the lower end of the terminal block 1, and an outer fixed sleeve of the fixed column 2 is provided with an outer cylinder 5, and a sensing head 4 is provided below the fixed column 2, and the sensing head 4 and the terminal block 1 are connected by a wire; an outer sleeve of the outer cylinder 5 is provided with an adjusting seat 6, and an adjusting push plate 8 is evenly fixedly provided at the lower end of the adjusting seat 6, and a limiting component is provided at the lower end of the outer cylinder 5, which is clamped in the position of the mounting hole, and the limiting component is driven to expand and clamp during the downward movement of the adjusting push plate 8. A sac seal for improving the sealing performance of the installation is also provided on the outer cylinder 5, and the outer cylinder 5 passes through the mounting hole on the automobile pipeline, and the movable seat 3 and the sensing head 4 are immersed in the coolant in the pipeline, a first spring 7 is fixedly connected between the upper end of the adjusting seat 6 and the outer cylinder 5, and the adjusting push plate 8 provided at the lower end of the adjusting seat 6 slides through the outer cylinder 5 in an interference fit manner, and the adjusting push plate 8 elastically During the downward movement, its lower end contacts the limit assembly, which includes an elastic locating part 9 uniformly fixedly installed on the lower end of the outer cylinder 5, and the initial outer diameter of the elastic locating part 9 is smaller than the outer diameter of the outer cylinder 5, and the positions of the adjusting push plate 8 and the elastic locating part 9 are arranged correspondingly up and down. At the same time, the adjusting push plate 8 pushes the elastic locating part 9 to deform and expand outward during the downward movement, and the deformed elastic locating part 9 is fit and clamped in the position of the pipeline mounting hole. The bag sealing part includes an air storage bag body 10 fixedly installed on the outside of the elastic locating part 9, and the air storage bag body 10 is squeezed by the inner wall of the pipeline mounting hole during the deformation of the elastic locating part 9, and a sealing elastic bag body 11 with an annular structure is embedded on the outside of the outer cylinder 5. At the same time, the air storage bag body 10 and the sealing elastic bag body 11 are connected by a pipeline, and after the sealing elastic bag body 11 is pressurized, air is supplied to the sealing elastic bag body 11 through the pipeline. After the sealing elastic bag 11 expands, it is tightly attached to the inner wall of the mounting hole and the outer wall of the outer cylinder 5.

[0020] When it is necessary to install the automobile temperature sensor, the adjusting seat 6 is pulled toward the right side of the terminal seat 1, so that the adjusting push plate 8 slides upward on the inner side of the outer cylinder 5, so that the adjusting push plate 8 is separated from the elastic positioning member 9. At this time, the elastic positioning member 9 will elastically reset under the action of its own elastic force and fit into the outer side of the outer cylinder 5. The outer cylinder 5 is inserted into the mounting hole on the pipeline and the adjusting seat 6 is loosened. The adjusting seat 6 can drive the adjusting push plate 8 to move down and reset under the elastic force of the first spring 7, so that the adjusting push plate 8 pushes the elastic positioning member 9 to elastically deform. The deformed elastic positioning member 9 fits and supports the inner wall of the mounting hole, thereby achieving effective positioning of the outer cylinder 5, convenient operation, and thus achieving fixed installation of the sensor. As the elastic positioning member 9 is deformed, it will cooperate with the inner wall of the mounting hole to squeeze the air storage bag 10, so that part of the gas in the air storage bag 10 enters the sealing elastic bag 11 through the pipeline. The expanded sealing elastic bag 11 will fit tightly between the mounting hole and the outer cylinder 5, thereby improving the installation sealing.

[0021] Example 2: The technical content disclosed in this embodiment is a further improvement based on the above-mentioned Example 1. The existing automobile temperature sensor cannot adjust the detection position according to the change of the coolant level and cannot be automatically cleaned, which leads to limited temperature detection accuracy. In order to further solve this technical problem, this embodiment discloses the following technical content, such as Figure 4-Figure 5 and Figure 8 As shown; the lower end of the fixed column 2 is telescopically mounted with a movable seat 3 driven by buoyancy, and the induction head 4 is fixedly mounted at the lower center position of the movable seat 3, and the outer side of the movable seat 3 is provided with a cleaning assembly driven by buoyancy. A buoyancy cavity 301 is provided on the inner side of the movable seat 3, and the movable seat 3 is raised and lowered and adjusted according to the liquid level in the pipeline under the action of buoyancy, and a second spring 13 is fixedly connected between the fixed column 2 and the movable seat 3, and the cleaning assembly includes a rotating ring 14 rotatably mounted on the outer side of the upper end of the movable seat 3, and a magnetic ring 17 is fixedly mounted above the rotating ring 14 through a frame, and a magnetic sheet 12 is fixedly mounted on the inner side of the lower part of the elastic positioning member 9, and at the same time, the magnetic poles of the opposite surfaces of the magnetic sheet 12 and the magnetic ring 17 are the same, and the rotating ring 14 is fixed to the inner side of the lower part of the elastic positioning member 9. When the moving ring 14 drives the magnetic ring 17 to move upward, it applies magnetic force to the elastic positioning part 9. The inner wall of the rotating ring 14 is embedded with a ball 15, and the lower part of the fixed column 2 is provided with a spiral guide groove 16. During the floating and lifting process of the movable seat 3, the ball 15 slides along the guide groove 16 to drive the rotating ring 14 to rotate. A scraper 18 is evenly fixedly connected to the bottom of the rotating ring 14, and the scraper 18 is in contact with the outer wall of the movable seat 3. The rotating ring 14 drives the scraper 18 to rotate to realize automatic cleaning of the outer wall of the movable seat 3.

[0022] As the movable seat 3 contacts the coolant, the movable seat 3 will move upward under the action of the buoyancy of the coolant, so that the movable seat 3 drives the rotating ring 14 to move upward synchronously. At this time, the magnetic ring 17 on the rotating ring 14 will gradually approach the magnetic sheet 12, and apply thrust to the elastic positioning member 9 through the magnetic action of the magnetic sheet 12, further ensuring the positioning effect of the elastic positioning member 9. At the same time, as the rotating ring 14 moves upward, the ball 15 will roll along the guide groove 16, thereby driving the rotating ring 14 to rotate, so that the scraper 18 on the outside of the rotating ring 14 can automatically clean the impurities on the outside of the movable seat 3, thereby ensuring the subsequent detection accuracy of the sensor head 4.

[0023] In the description of the present invention, unless otherwise specified, "plurality" means two or more; terms such as "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

Claims

1. A portable automobile temperature sensor, comprising a terminal block (1) for data connection, wherein a fixing column (2) is fixedly mounted on the lower end of the terminal block (1), an outer fixing sleeve of the fixing column (2) is provided with an outer column (5), and a sensing head (4) is provided below the fixing column (2), and the sensing head (4) and the terminal block (1) are connected via a wire; It is characterized in that The outer side of the outer column (5) is sleeved with an adjustment seat (6), and the lower end of the adjustment seat (6) is evenly fixed with an adjustment push plate (8), and the lower end of the outer column (5) is provided with a limit assembly that is clamped at the position of the installation hole, and at the same time, the limit assembly is driven to expand and clamp during the downward movement of the adjustment push plate (8). The outer column (5) is also provided with a sac seal for improving the installation sealing performance. The lower end of the fixed column (2) is telescopically installed with a movable seat (3) driven by buoyancy, and the induction head (4) is fixedly installed at the lower end center position of the movable seat (3), and the outer side of the movable seat (3) is provided with a cleaning assembly driven by buoyancy.

2. The portable automobile temperature sensor according to claim 1, characterized in that: The outer column (5) passes through the mounting hole on the automobile pipeline, and the movable seat (3) and the induction head (4) are immersed in the coolant in the pipeline.

3. The portable automobile temperature sensor according to claim 1, characterized in that: A first spring (7) is fixedly connected between the adjusting seat (6) and the upper end of the outer column (5), and an adjusting push plate (8) provided at the lower end of the adjusting seat (6) slides through the outer column (5) with interference fit, and the lower end of the adjusting push plate (8) contacts the limit assembly during the elastic downward movement.

4. The portable automobile temperature sensor according to claim 3, characterized in that: The limit assembly includes an elastic positioning member (9) uniformly fixedly mounted on the lower end of the outer cylinder (5), and the initial outer diameter of the elastic positioning member (9) is smaller than the outer diameter of the outer cylinder (5), and the positions of the push plate (8) and the elastic positioning member (9) are adjusted to correspond to each other up and down, and the push plate (8) is adjusted to push the elastic positioning member (9) to deform and expand during the downward movement, and the deformed elastic positioning member (9) is fitted and clamped at the position of the pipeline installation hole.

5. The portable automobile temperature sensor according to claim 1, characterized in that: The sac sealing member includes an air storage sac (10) fixedly mounted on the outside of the elastic positioning member (9), and the air storage sac (10) is squeezed by the inner wall of the pipeline mounting hole during the deformation of the elastic positioning member (9), and a sealing elastic sac (11) with an annular structure is embedded and mounted on the outside of the outer column (5), and the air storage sac (10) and the sealing elastic sac (11) are connected by a pipeline, and after the sealing elastic sac (11) is pressurized, air is supplied to the sealing elastic sac (11) through the pipeline, and after the sealing elastic sac (11) is expanded, it is tightly attached to the inner wall of the mounting hole and the outer wall of the outer column (5).

6. The portable automobile temperature sensor according to claim 1, characterized in that: A buoyancy cavity (301) is provided on the inner side of the movable seat (3), and the movable seat (3) is adjusted up and down according to the liquid level in the pipeline under the action of buoyancy, and a second spring (13) is fixedly connected between the fixed column (2) and the movable seat (3).

7. The portable automobile temperature sensor according to claim 6, characterized in that: The cleaning assembly comprises a rotating ring (14) rotatably mounted on the outer side of the upper end of the movable seat (3), and a magnetic ring (17) is fixedly mounted above the rotating ring (14) through a frame, and a magnetic sheet (12) is fixedly mounted on the inner side of the lower portion of the elastic positioning member (9), and the magnetic poles of the opposing surfaces of the magnetic sheet (12) and the magnetic ring (17) are the same, and the rotating ring (14) applies a magnetic force to the elastic positioning member (9) when driving the magnetic ring (17) to move upward.

8. The portable automobile temperature sensor according to claim 7, characterized in that: A ball (15) is embedded in the inner wall of the rotating ring (14), and a spiral guide groove (16) is provided at the lower part of the fixed column (2). During the floating and lifting process of the movable seat (3), the ball (15) slides along the guide groove (16) to drive the rotating ring (14) to rotate.

9. The portable automobile temperature sensor according to claim 8, characterized in that: A scraper (18) is evenly and fixedly connected below the rotating ring (14), and the scraper (18) is in contact with the outer wall of the movable seat (3). The rotating ring (14) drives the scraper (18) to rotate to automatically clean the outer wall of the movable seat (3).

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