Limiting mechanism of automobile pressure sensor

Abstract

The utility model belongs to the technical field of automobile pressure sensors, in particular to a limiting mechanism of an automobile pressure sensor, which comprises an external oil tank and a sensor body mounted on the external oil tank through the limiting mechanism, and the limiting mechanism comprises a connecting frame, a connecting part, a mounting seat, a limiting component and an elastic component. The connecting part is lifted upwards, the bottom of the connecting frame is rotationally installed on an external oil tank, the fixing rod is pulled to enable the limiting part to move, the connecting part is vertically placed in the installation base, limitation on the fixing rod is released, the limiting part extends out, and the end of the limiting part moves to the top end face of the elastic part in an attached mode from the edge of the elastic part. The limiting part applies extrusion force to the elastic part and completes limitation on the connecting part, so that the sensor body is stably limited; the arrangement of the elastic component can play a role in buffering, reduces the pressure borne by the sensor body in use, reduces the possibility of breakage of the sensor body, and can achieve a better protection effect on the sensor body.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive pressure sensors, and particularly to a limiting mechanism for an automotive pressure sensor. Background Art

[0002] An automotive pressure sensor can detect the pressure of a pressure accumulator, output signals for closing or disconnecting an oil pump, and give an alarm for abnormal oil pressure. It is internally provided with a semiconductor strain gauge, which utilizes the characteristic that the resistance changes when the shape of the strain gauge changes; in addition, it is also provided with a metal diaphragm, and the change in pressure is detected through the metal diaphragm strain gauge and converted into an electrical signal for external output.

[0003] Currently, an automotive pressure sensor is required to monitor the oil pressure of an automobile. The existing automotive pressure sensors are prone to loosening after being fixed. The vibration generated during the driving of the automobile will increase the loosening of the automotive pressure sensor, resulting in the phenomenon of the pressure sensor falling off. Moreover, the connection between the existing automotive pressure sensor and the fuel tank is prone to breakage, reducing the practicality of the pressure sensor. Summary of the Utility Model

[0004] The purpose of the utility model is to address the deficiencies of the prior art and provide a limiting mechanism for an automotive pressure sensor to solve the problems raised in the above background art.

[0005] A limiting mechanism for an automotive pressure sensor includes an external fuel tank and a sensor body installed on the external fuel tank through the limiting mechanism. The limiting mechanism includes a connecting frame, connecting parts, mounting seats, limiting components, and elastic components. There are two connecting parts, which are respectively movably sleeved on the fixed shafts at both ends of the connecting frame. There are two mounting seats installed on the external fuel tank and arranged in a one-to-one correspondence with the two connecting parts up and down. There are two limiting components, which are disposed on both sides of the mounting seat for restricting the connecting parts. The elastic component is installed in the middle chute of the connecting part.

[0006] By adopting the above technical solution, the limiting of the sensor body is realized.

[0007] The limiting component includes a fixed seat, a spring, a fixed rod, and a limiting part. The limiting part is elastically installed in the fixed seat through the spring, and the fixed rod is installed on one side surface of the end of the limiting part located inside the fixed seat.

[0008] By adopting the above technical solution, it is convenient to restrict the connecting part.

[0009] When the two limiting parts on the mounting seat extend out of the fixed seat, the opposite surfaces of the two limiting parts are in contact. When the limiting parts extend into the fixed seat, the distance between the two limiting parts is greater than the diameter of the connecting part.

[0010] By adopting the above technical solution, it is convenient to install the connecting part into the mounting seat.

[0011] An installation groove adapted to the diameter of the connecting part is formed on the mounting seat.

[0012] By adopting the above technical solution, the connection is made stable.

[0013] The sliding groove in the middle of the connecting part is arranged in a long strip structure, extends to both ends of the connecting part, and the width of the sliding groove is adapted to the limiting part.

[0014] By adopting the above technical solution, the connecting part can be pulled upward to rotatably install the connecting frame on the external fuel tank.

[0015] The beneficial effects of the limiting mechanism of the automotive pressure sensor of the present utility model are as follows:

[0016] Pull the connecting part upward, rotatably install the bottom of the connecting frame on the external fuel tank, pull the fixing rod to move the limiting part into the fixing seat, then vertically place the connecting part in the mounting seat, release the restriction on the fixing rod, the limiting part will extend, and its end moves from the edge of the elastic component to its top surface in a fitting manner. The limiting part applies an extrusion force to the elastic component and completes the restriction of the connecting part, thereby stably restricting the sensor body; the setting of the elastic component can play a buffering role, reduce the pressure received by the sensor body during use, reduce the possibility of the sensor body breaking, and can provide a good protection effect on the sensor body. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the automotive pressure sensor proposed by the present utility model installed on an external fuel tank;

[0018] Figure 2 It is a schematic structural diagram of the limiting mechanism of the automotive pressure sensor proposed by the present utility model;

[0019] Figure 3 It is a schematic structural diagram of the connecting part and the fixing seat of the limiting mechanism of the automotive pressure sensor proposed by the present utility model;

[0020] Figure 4 It is a schematic structural diagram of the components on the connecting part of the limiting mechanism of the automotive pressure sensor proposed by the present utility model;

[0021] Figure 5 It is a diagram showing the positional relationship between the limiting component and the elastic component of the limiting mechanism of the automotive pressure sensor proposed by the present utility model.

[0022] In the figure: 1. Sensor body; 2. Connecting frame; 3. Connecting part; 4. Mounting seat; 5. Limiting component; 501. Fixed seat; 502. Spring; 503. Fixed rod; 504. Limiting part; 6. Elastic component; 7. External fuel tank. Detailed implementation mode

[0023] The following elaborates on the preferred embodiments of the present utility model in conjunction with the attached 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.

[0024] Refer to Figures 1-5 , a limiting mechanism for an automotive pressure sensor, including an external fuel tank 7 and a sensor body 1 installed on the external fuel tank 7 through the limiting mechanism. The limiting mechanism includes a connecting frame 2, a connecting part 3, a mounting seat 4, a limiting component 5, and an elastic component 6. There are two connecting parts 3, which are respectively movably sleeved on the fixed shafts at both ends of the connecting frame 2. There are two mounting seats 4 installed on the external fuel tank 7 and arranged in a one-to-one correspondence with the two connecting parts 3 up and down. There are two limiting components 5, which are placed on both sides of the mounting seat 4 for restricting the connecting part 3. The elastic component 6 is installed in the middle chute of the connecting part 3;

[0025] Lift the connecting part 3 upward, then rotatably install the bottom of the connecting frame 2 on the external fuel tank 7, pull the fixed rod 503 to move the limiting part 504 into the fixed seat 501, then vertically place the connecting part 3 in the mounting seat 4, release the restriction on the fixed rod 503, and the limiting part 504 will extend, and its end moves from the edge of the elastic component 6 to its top surface. At this time, the limiting part 504 applies a squeezing force to the elastic component 6 and completes the restriction of the connecting part 3;

[0026] The sensor body 1 can be restricted on the external fuel tank 7 through the connecting part 3, the mounting seat 4, and the limiting component 5. Moreover, the setting of the elastic component 6 can play a buffering role, reduce the pressure on the sensor body 1 during use, reduce the possibility of the sensor body 1 breaking, and can provide a good protection effect for the sensor body 1;

[0027] The chute in the middle of the connecting part 3 is arranged in a long strip structure and extends to both ends of the connecting part 3. Moreover, the width of this chute is adapted to the limiting part 504. The connecting frame 2 is installed on the sensor body 1, and the connecting frame 2 is integrally in an oval structure, with grooves opened at both ends. The connecting part 3 is installed on the connecting frame 2 through a fixed shaft, and a chute is opened in the middle of the connecting part 3. The connecting part 3 can be lifted upward, and then the sensor body 1 is rotatably installed on the external fuel tank 7. (It should be noted that Figure 1 the external fuel tank 7 in is not completely released, only showing the partial structure installed with the sensor body 1).

[0028] The limiting component 5 includes a fixed seat 501, a spring 502, a fixed rod 503 and a limiting part 504. The limiting part 504 is elastically installed in the fixed seat 501 through the spring 502. The fixed rod 503 is installed on one side surface of the end part of the limiting part 504 located inside the fixed seat 501. Chute grooves are formed on both side surfaces of the fixed seat 501, and the fixed rod 503 can be installed on the limiting part 504 and the fixed rod 503 is pushed to drive the limiting part 504 to move in the fixed seat 501.

[0029] An installation groove adapted to the diameter of the connecting part 3 is formed on the installation seat 4. When the two limiting parts 504 on the installation seat 4 extend out of the fixed seat 501, the opposite surfaces of the two limiting parts 504 are in contact with each other. When the limiting parts 504 extend into the fixed seat 501, the distance between the two limiting parts 504 is greater than the diameter of the connecting part 3. So as to facilitate the vertical placement of the connecting part 3 on the installation seat 4, and the connecting part 3 is stably placed in the installation seat 4, and it is convenient to limit it through the limiting component 5, thereby realizing the limitation of the sensor body 1.

[0030] The above embodiments only represent several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A limiting mechanism for an automobile pressure sensor, comprising an external oil tank (7) and a sensor body (1) mounted on the external oil tank (7) via the limiting mechanism, characterized in that: The limiting mechanism comprises a connecting frame (2), a connecting part (3), a mounting seat (4), a limiting assembly (5) and an elastic component (6); the connecting parts (3) are two and are respectively movably mounted on fixed shafts at both ends of the connecting frame (2); the mounting seats (4) are two and are mounted on an external oil tank (7) and are arranged one by one in upper and lower correspondence with the two connecting parts (3); the limiting assemblies (5) are two and are arranged on both sides of the mounting seat (4) to limit the connecting part (3); and the elastic component (6) is installed in a sliding groove in the middle of the connecting part (3).

2. The limiting mechanism of the automobile pressure sensor according to claim 1 is characterized in that: The limiting assembly (5) comprises a fixing seat (501), a spring (502), a fixing rod (503) and a limiting portion (504); the limiting portion (504) is elastically mounted in the fixing seat (501) via the spring (502); and the fixing rod (503) is mounted on a side surface of an end portion of the limiting portion (504) located inside the fixing seat (501).

3. The limiting mechanism of the automobile pressure sensor according to claim 2, characterized in that: When the two limiting portions (504) on the mounting seat (4) extend out of the fixing seat (501), the opposing surfaces of the two limiting portions (504) are in contact with each other; when the limiting portions (504) extend into the fixing seat (501), the distance between the two limiting portions (504) is greater than the diameter of the connecting portion (3).

4. The limiting mechanism of the automobile pressure sensor according to claim 3 is characterized in that: The mounting seat (4) is provided with a mounting groove matching the diameter of the connecting portion (3).

5. The limiting mechanism of the automobile pressure sensor according to claim 4, characterized in that: The slide groove in the middle of the connecting portion (3) is arranged in a long strip structure and extends to both ends of the connecting portion (3), and the width of the slide groove is arranged to match the limiting portion (504).

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