Mounting structure for automobile pressure sensor

Abstract

The utility model belongs to automobile pressure sensor installation technical field especially, and a kind of installation structure of automobile pressure sensor is presented as follows scheme, including by sensor main body, mounting seat, installation cylinder column component intake pressure sensor, the mounting seat is fixed in sensor main body outer wall one side, the installation cylinder column is fixed in mounting seat top and passes through mounting seat and is flush with mounting seat bottom, fixed assembly is installed in mounting seat inboard, the fixed assembly is used to realize the installation fixed operation of intake pressure sensor. The utility model is provided with intake pressure sensor and fixed assembly with internal thread, can make fixed assembly can be preconnected with intake pressure sensor, and when disassembling, fixed assembly cannot be separated from intake pressure sensor, in turn, fixed assembly can effectively avoid falling during the dismounting process of intake pressure sensor, further improve the installation convenience of intake pressure sensor.

Description

Technical fields:

[0001] This utility model relates to the field of automotive pressure sensor installation technology, and in particular to an installation structure for an automotive pressure sensor. Background technology:

[0002] The intake manifold pressure sensor (MAP sensor) is one of the core sensors in an electronic fuel injection engine. It is used to measure the absolute pressure (vacuum) in the intake manifold and, in conjunction with the engine speed signal, calculate the amount of air entering the cylinder.

[0003] Existing automotive intake pressure sensors are fixed with screws. The actual installation environment is confined space. When using long sockets or extension rods to tighten or loosen the bolts in a narrow space, the operation is limited by space and inflexible. It is easy to lose control when the screw is fully unscrewed (or aligned for tightening), causing the screw to fall off. To avoid this situation, an installation structure for automotive pressure sensors is provided. Utility Model Content:

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing an installation structure for automotive pressure sensors, which solves the problem of screws easily falling off during the disassembly and assembly of automotive intake pressure sensors.

[0005] An installation structure for an automotive pressure sensor includes an intake pressure sensor consisting of a sensor body, a mounting base, and a mounting cylinder. The mounting base is fixed to one side of the outer wall of the sensor body, and the mounting cylinder is fixed to the top of the mounting base and penetrates through the mounting base and is flush with the bottom of the mounting base. A fixing component is installed inside the mounting base, and the fixing component is used to realize the installation and fixing operation of the intake pressure sensor.

[0006] The fixing component includes a nut, a connecting rod, and a screw, which are connected and fixed sequentially from top to bottom. The inner side of the mounting cylinder near the top is integrally formed with an internal thread. The screw is threaded to the internal thread and completely passes through the area where the internal thread is located, for pre-connection of the fixing component and the mounting cylinder. The screw passes through the mounting cylinder and is threaded to the threaded connection seat on the outside of the vehicle's intake manifold and tightened, for fixing the intake pressure sensor.

[0007] By adopting the above technical solution, the internal thread can limit the upward movement of the screw, which not only enables the pre-connection of the fixing component and the intake pressure sensor, but also prevents the fixing component from separating from the intake pressure sensor during disassembly, thereby preventing the fixing component from falling off.

[0008] The outer diameter of the screw is matched with the inner diameter of the mounting cylinder, and the outer diameter of the connecting rod is smaller than the outer diameter of the screw and matches the inner diameter of the internal thread.

[0009] By adopting the above technical solution, the connecting rod will not damage the internal thread when passing through the internal thread area.

[0010] The top side of the mounting cylinder has a notch, and the top of the mounting base is fixed with a limiting spring buckle extending into the notch. The outer side of the connecting rod has an annular groove, and one side of the limiting spring buckle is engaged with the inner side of the annular groove to provide vertical limiting for the fixing component.

[0011] By adopting the above technical solution, the limiting spring buckle and the annular slot can vertically limit the fixed component, thus preventing the fixed component from moving down and protruding below the mounting cylinder during the disassembly and assembly process, which would affect the disassembly and assembly operation.

[0012] When the annular groove engages with the limiting spring buckle, the bottom of the screw is flush with the bottom of the mounting cylinder, and the top of the screw does not contact the internal thread.

[0013] By adopting the above technical solution, when the screw is completely separated from the mounting thread seat of the car, the top of the screw does not contact the internal thread, that is, even if the screw is continued to be loosened, the screw will not be helically connected to the internal thread.

[0014] The side of the limiting spring that contacts the notch has an arc-shaped structure.

[0015] By adopting the above technical solution, when the connecting rod moves up and down, the notch can smoothly squeeze out the arc-shaped limit spring buckle, ensuring that the tightening and loosening of the fixing component is smooth.

[0016] The beneficial effects of the mounting structure for an automotive pressure sensor of this utility model are:

[0017] By setting an intake pressure sensor and a fixing component with internal threads, the fixing component can be pre-connected to the intake pressure sensor, and the fixing component will not separate from the intake pressure sensor during disassembly. This effectively avoids the fixing component falling off during the disassembly and assembly of the intake pressure sensor, further improving the ease of installation of the intake pressure sensor. Attached image description:

[0018] Figure 1 This is a schematic diagram of the overall structure of the mounting structure of the automotive pressure sensor proposed in this utility model.

[0019] Figure 2 This is a cross-sectional view of the mounting base and mounting cylinder of the automotive pressure sensor mounting structure proposed in this utility model.

[0020] Figure 3 This is a cross-sectional exploded view of the mounting structure of the automotive pressure sensor proposed in this utility model.

[0021] In the diagram: 1. Intake pressure sensor; 101. Sensor body; 102. Mounting base; 103. Mounting cylinder; 104. Notch; 105. Internal thread; 2. Fixing assembly; 201. Nut; 202. Connecting rod; 203. Screw; 204. Annular groove; 3. Limiting spring buckle. Detailed implementation method:

[0022] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0023] Reference Figures 1 to 3 An installation structure for an automotive pressure sensor includes an intake pressure sensor 1 consisting of a sensor body 101, a mounting base 102, and a mounting cylinder 103. The mounting base 102 is fixed to one side of the outer wall of the sensor body 101. The mounting cylinder 103 is fixed to the top of the mounting base 102 and passes through the mounting base 102 and is flush with the bottom of the mounting base 102. A fixing component 2 is installed inside the mounting base 102. The fixing component 2 is used to realize the installation and fixing operation of the intake pressure sensor 1.

[0024] The fixing component 2 includes a nut 201, a connecting rod 202, and a screw 203. The nut 201, connecting rod 202, and screw 203 are connected and fixed sequentially from top to bottom. An internal thread 105 is integrally formed on the inner side of the mounting cylinder 103 near the top. The screw 203 is threaded to the internal thread 105 and completely passes through the area where the internal thread 105 is located, which is used to realize the pre-connection between the fixing component 2 and the mounting cylinder 103. The screw 203 passes through the mounting cylinder 103 and is threaded to the threaded connection seat on the outside of the vehicle intake manifold and tightened, which is used to fix the intake pressure sensor 1.

[0025] The outer diameter of the screw 203 matches the inner diameter of the mounting cylinder 103, and the outer diameter of the connecting rod 202 is smaller than the outer diameter of the screw 203 and matches the inner diameter of the internal thread 105;

[0026] A notch 104 is provided on one side of the top of the mounting cylinder 103, and a limiting spring buckle 3 extending into the notch 104 is fixed on the top of the mounting base 102.

[0027] An annular groove 204 is provided on the outer side of the connecting rod 202. One side of the limiting snap 3 is engaged with the inner side of the annular groove 204 to provide vertical limiting for the fixing component 2.

[0028] In this embodiment, it should be noted that the intake pressure sensor 1 is a common type of automotive intake pressure sensor on the market. The internal structure of its sensor body 101 has not been changed. That is, the operating principle of the intake pressure sensor 1 is exactly the same as that of common automotive intake pressure sensors. Therefore, the internal structure and operating principle of the intake pressure sensor 1 will not be described in detail here.

[0029] The installation procedure for intake pressure sensor 1 is as follows:

[0030] First, pre-connect the fixing component 2 with the mounting cylinder 103. Align the screw 203 with the mounting cylinder 103 from top to bottom and insert it. When the screw 203 contacts the internal thread 105, tighten the fixing component 2 to make the screw 203 threadedly connected with the internal thread 105. Finally, make the screw 203 completely pass through the area where the internal thread 105 is located (during this process, the limiting spring buckle 3 can be manually moved outward to deform the limiting spring buckle 3 and move away from the screw 203, so as not to affect the threaded connection between the screw 203 and the internal thread 105).

[0031] Afterwards, the connecting rod 202 moves down to the area of ​​the internal thread 105, and when the annular groove 204 is aligned with the limiting spring buckle 3 (when the screw 203 has completely passed through the area of ​​the internal thread 105, the lever on the limiting spring buckle 3 is released, so that the limiting spring buckle 3 is reset under the action of its own material elasticity), the limiting spring buckle 3 is inserted into the annular groove 204 under the action of its own elasticity, thereby realizing the initial limiting of the fixing component 2 and completing the pre-connection of the fixing component 2 and the intake pressure sensor 1;

[0032] Afterwards, the probe of the sensor body 101 can be aligned with the detection position and inserted. The mounting cylinder 103 is then aligned with the mounting threaded seat on the vehicle (this structure is the existing automotive air pressure sensor mounting structure). Then, the nut 201 is tightened with a tool (such as a long socket) to achieve downward pushing force, causing the screw 203 to move down and be screwed into the mounting threaded seat on the vehicle (it should be noted that at this time, the limiting spring 3 is squeezed into the shape).

[0033] When disassembling the intake pressure sensor 1, when the nut 201 is loosened in the reverse direction using a tool, when the fixing component 2 moves upward as a whole until the annular groove 204 is aligned with the limiting spring buckle 3, the limiting spring buckle 3 resets and snaps into the annular groove 204. At this time, the intake pressure sensor 1 can be manually pulled out.

[0034] Through the cooperation of the above-mentioned components, the fixing component 2 can be pre-connected with the intake pressure sensor 1, and the fixing component 2 will not separate from the intake pressure sensor 1 during disassembly. This effectively avoids the fixing component 2 falling off during the disassembly and assembly of the intake pressure sensor 1, and further improves the ease of installation of the intake pressure sensor 1.

[0035] Please refer to this carefully. Figures 1 to 3 When the annular groove 204 engages with the limiting spring buckle 3, the bottom of the screw 203 is flush with the bottom of the mounting cylinder 103, and the top of the screw 203 does not contact the internal thread 105.

[0036] In this embodiment: With this structure, after the screw 203 is completely unscrewed from the mounting threaded seat on the car and comes into contact with the internal thread 105, that is, even if the nut 201 is continued to be tightened with a tool at this time, the screw 203 will not move upwards in connection with the internal thread 105, thereby ensuring that the fixing component 2 will not separate from the intake pressure sensor 1 during disassembly.

[0037] Please refer to this carefully. Figures 1 to 3 The side of the limiting spring buckle 3 that contacts the notch groove 104 has an arc-shaped structure.

[0038] In this embodiment: the arc-shaped structure of the limiting spring buckle 3 allows the connecting rod 220 to be squeezed and deformed into shape during the up and down movement, ensuring smooth tightening and loosening of the fixing component 2.

[0039] Working principle: The installation method for intake pressure sensor 1 is as follows:

[0040] First, pre-connect the fixing component 2 with the mounting cylinder 103. Align the screw 203 with the mounting cylinder 103 from top to bottom and insert it. When the screw 203 contacts the internal thread 105, tighten the fixing component 2 to make the screw 203 threadedly connected with the internal thread 105. Finally, make the screw 203 completely pass through the area where the internal thread 105 is located (during this process, the limiting spring buckle 3 can be manually moved outward to deform the limiting spring buckle 3 and move away from the screw 203, so as not to affect the threaded connection between the screw 203 and the internal thread 105).

[0041] Afterwards, the connecting rod 202 moves down to the area of ​​the internal thread 105, and when the annular groove 204 is aligned with the limiting spring buckle 3 (when the screw 203 has completely passed through the area of ​​the internal thread 105, the lever on the limiting spring buckle 3 is released, so that the limiting spring buckle 3 is reset under the action of its own material elasticity), the limiting spring buckle 3 is inserted into the annular groove 204 under the action of its own elasticity, thereby realizing the initial limiting of the fixing component 2 and completing the pre-connection of the fixing component 2 and the intake pressure sensor 1;

[0042] Afterwards, the probe of the sensor body 101 can be aligned with the detection position and inserted. The mounting cylinder 103 is then aligned with the mounting threaded seat on the vehicle (this structure is the existing automotive air pressure sensor mounting structure). Then, the nut 201 is tightened with a tool (such as a long socket) to achieve downward pushing force, causing the screw 203 to move down and be screwed into the mounting threaded seat on the vehicle (it should be noted that at this time, the limiting spring 3 is squeezed into the shape).

[0043] When disassembling the intake pressure sensor 1, when the nut 201 is loosened in the reverse direction using a tool, when the fixing component 2 moves upward as a whole until the annular groove 204 is aligned with the limiting spring buckle 3, the limiting spring buckle 3 resets and snaps into the annular groove 204. At this time, the intake pressure sensor 1 can be manually pulled out.

[0044] Through the cooperation of the above-mentioned components, the fixing component 2 can be pre-connected with the intake pressure sensor 1, and the fixing component 2 will not separate from the intake pressure sensor 1 during disassembly. This effectively avoids the fixing component 2 falling off during the disassembly and assembly of the intake pressure sensor 1, and further improves the ease of installation of the intake pressure sensor 1.

[0045] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. An installation structure for an automotive pressure sensor, comprising an intake pressure sensor (1) consisting of a sensor body (101), a mounting base (102), and a mounting cylinder (103), wherein the mounting base (102) is fixed to one side of the outer wall of the sensor body (101), and the mounting cylinder (103) is fixed to the top of the mounting base (102), penetrates the mounting base (102), and is flush with the bottom of the mounting base (102), characterized in that: A fixing component (2) is installed inside the mounting base (102), and the fixing component (2) is used to realize the installation and fixing operation of the intake pressure sensor (1); The fixing component (2) includes a nut (201), a connecting rod (202), and a screw (203). The nut (201), connecting rod (202), and screw (203) are connected and fixed sequentially from top to bottom. An internal thread (105) is integrally formed on the inner side of the mounting cylinder (103) near the top. The screw (203) is threaded to the internal thread (105) and completely passes through the area where the internal thread (105) is located, which is used to realize the pre-connection between the fixing component (2) and the mounting cylinder (103). The screw (203) passes through the mounting cylinder (103) and is threaded to the threaded connection seat outside the automobile intake manifold and tightened, which is used to realize the fixing of the intake pressure sensor (1).

2. The mounting structure of the automotive pressure sensor according to claim 1, characterized in that: The outer diameter of the screw (203) matches the inner diameter of the mounting cylinder (103), and the outer diameter of the connecting rod (202) is smaller than the outer diameter of the screw (203) and matches the inner diameter of the internal thread (105).

3. The mounting structure for the automotive pressure sensor according to claim 2, characterized in that: The top side of the mounting cylinder (103) is provided with a notch (104), and the top of the mounting base (102) is fixed with a limiting spring buckle (3) extending to the inside of the notch (104). The outer side of the connecting rod (202) is provided with an annular groove (204), and one side of the limiting spring buckle (3) is engaged with the inside of the annular groove (204) to provide vertical limiting for the fixing component (2).

4. The mounting structure of the automotive pressure sensor according to claim 3, characterized in that: When the annular groove (204) engages with the limiting spring buckle (3), the bottom of the screw (203) is flush with the bottom of the mounting cylinder (103), and the top of the screw (203) does not contact the internal thread (105).

5. The mounting structure for the automotive pressure sensor according to claim 3, characterized in that: The side of the limiting spring buckle (3) that contacts the notch (104) has an arc-shaped structure.

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