A stable pressure sensor connector

Abstract

The present invention discloses a stable pressure sensor joint connector, which relates to the automotive field, and includes a pressure sensor body, a reserved interface end, and a reserved connection cable. The outer side of the pressure sensor body is provided with a reserved interface end, and the inner side of the reserved interface end is plugged with a reserved connection cable; the outer side of the reserved interface end is fixedly connected with an elastic external extension end. For the stable pressure sensor joint connector, the user only needs to rotate the nested threaded member to rotate it along the outer side of the external extension end toward the outer thread, so that the external extension end extending outward from the outer thread end can be stably pressed inward, so that it can gradually move inward adaptively, meet the self-locking positioning requirements of the outer side of the reserved connection cable with different outer plug-in shapes, and in the process of working, the docking part thereof realizes a self-locking working state, avoiding the undesirable phenomenon of falling off and loosening during the long-term vibration inside the car, and ensuring the overall sensing quality and sensing accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of automobiles, in particular to a stable pressure sensor joint connector. Background Art

[0002] With the popularization of automobiles, the installation equipment of internal components of automobiles has been gradually optimized. Among them, the more important automobile pressure sensors need to be adapted to the corresponding connectors during the installation process;

[0003] For example, a pressure sensor connector with publication number CN118367388A has the following technical solutions: including a pressure sensor body, a sensor connector body is provided on one side of the pressure sensor body, a protective shell is movably sleeved between the pressure sensor body and the sensor connector body, a mounting frame is movably sleeved inside the protective shell, a limiting hole is provided on one side of the protective shell, and the limiting hole is movably sleeved with the pressure sensor body; reducing the entry of humid water vapor into the connection between the pressure sensor body and the sensor connector body, and preventing excessive humid water vapor from entering between the pressure sensor body and the sensor connector body, causing corrosion of internal metal parts;

[0004] Another example is a connection structure of a fuel pressure sensor with publication number CN115066548A, which can prevent the relative rotation of the abutment surface of the fuel rail and the sealing surface of the fuel pressure sensor, and can suppress the deterioration of the sealing performance. The fuel rail for circulating fuel is formed on the fuel rail, and has an external threaded portion and an abutment surface; a mounting portion is arranged on a sensor body of the fuel pressure sensor, and has a contact surface abutting the abutment surface and a seat surface located behind the contact surface; and a nut has an internal threaded portion, the internal threaded portion is screwed with the external threaded portion, and the pressing portion presses the seat surface toward the abutment surface by screwing the internal threaded portion with the external threaded portion;

[0005] For example, a pressure sensor with stable connection in CN107907248A comprises a pressure sensor body and a wire connector, wherein a chip arranged at one end of the pressure sensor body is connected to the wire connector in correspondence, a plurality of embedded grooves are arranged around the surface of the connection end of the pressure sensor body, a hollow cylindrical buckle is arranged at the end of the wire connector in correspondence, the connection end of the pressure sensor body is arranged in correspondence in the cylindrical buckle, a limiting block is arranged on the inner wall of the cylindrical buckle in correspondence with the embedded groove, and the wire connector is arranged at the bottom of the cylindrical buckle in correspondence, which has a simple structure, is easy to install and use, is simple to disassemble, ensures the sealing usability of the product, has good connection stability, and reduces loss cost;

[0006] Most of the above-mentioned existing technologies have improved their overall structure, but the existing pressure sensor joint connector cannot achieve a self-locking working state during operation. During the long-term vibration inside the car, it is very easy to fall off and loosen, resulting in accuracy problems in its overall sensing quality, and thus there are certain limitations in use. Summary of the invention

[0007] The purpose of the present invention is to provide a stable pressure sensor joint connector to solve the problem proposed in the above background technology that during operation, its docking cannot achieve a self-locking working state, and it is very easy to fall off and loosen during the long-term vibration inside the car, resulting in accuracy problems in its overall sensing quality, and thus there are certain usage limitations.

[0008] To achieve the above object, the present invention provides the following technical solution: a stable pressure sensor joint connector, comprising a pressure sensor body, a reserved interface end and a reserved connection cable, wherein the reserved interface end is installed on the outer side of the pressure sensor body, and the reserved connection cable is plugged into the inner side of the reserved interface end;

[0009] The outer side of the reserved interface end is fixedly connected with an elastic external extension end, and the outer side of the external extension end is threadedly connected with a nested threaded member, and the outer end of the nested threaded member is nested with a built-in nested docking member, and the inner side of the pressure sensor body and the reserved interface end is provided with an auxiliary self-locking structure for positioning the contacted reserved connection cable;

[0010] The inner wall of the reserved interface end is provided with a secondary sealing structure which is adaptively deformed to the outer side of the reserved connection cable.

[0011] Furthermore, the auxiliary self-locking structure is provided with a reserved steel wire rope, and the reserved steel wire rope is docked on the outside of the built-in nested docking piece, and the reserved steel wire rope passes through the interior of the pressure sensor body; a transverse guide groove is opened inside the pressure sensor body, and a wedge-shaped docking piece is nested and installed on the inner side of the transverse guide groove, and the end of the wedge-shaped docking piece is docked with the end of the reserved steel wire rope.

[0012] Furthermore, a first return spring is fixedly connected to the inner side of the pressure sensor body, and a vertical docking resistance limiter is docked on the outer side of the first return spring, and the vertical docking resistance limiter is nested and docked along the inner wall of the pressure sensor body; an external reserved groove is provided on the outer surface of the reserved connecting cable, and the external reserved groove corresponds to the outer side position of the vertical docking resistance limiter.

[0013] Furthermore, the nested threaded member forms a threaded connection structure along the outer side of the external extension end, and a relatively nested rotation structure is formed between the nested threaded member and the outer built-in nested docking member, and the built-in nested docking member cooperates with the reserved steel wire rope and the wedge-shaped docking member to form a traction structure as the nested threaded member moves outward.

[0014] Furthermore, the wedge-shaped docking parts are distributed at equal angles with respect to the center point of the pressure sensor body, and the wedge-shaped docking parts simultaneously apply pressure to the contacting vertical docking resistance limit parts during the inward movement, and the vertical docking resistance limit parts form a locking structure with the reserved connecting cable through the external reserved groove, and the vertical docking resistance limit parts form an elastic reset structure through the first reset spring.

[0015] Furthermore, the secondary sealing structure is provided with a nested fitting, and the nested fitting is fixedly docked on the outer side of the lower end of the wedge-shaped docking piece, and the nested fitting is nested and docked with the inner wall of the reserved interface end, and the interior of the reserved interface end is adhesively connected with a reserved first airbag; the lower end of the wedge-shaped docking piece is fixedly connected with a second return spring, and the second return spring and the interior of the reserved interface end are docked with each other.

[0016] Furthermore, an air supply hose is provided through the outer side of the reserved first airbag, and the air supply hose passes through the inside of the reserved interface end, the inner wall of the reserved interface end is bonded and connected with the reserved second airbag, and the reserved second airbag and the air supply hose are connected to each other.

[0017] Furthermore, the wedge-shaped docking piece and the nested fitting piece are an integrated structure, and the nested fitting piece forms a sliding fitting structure along the inside of the pressure sensor body as the wedge-shaped docking piece moves, and the inwardly moving nested fitting piece synchronously applies pressure to the contacted reserved first airbag.

[0018] Furthermore, during the process of the reserved first airbag being pressurized, an air supply structure is formed through the air supply hose and the inner side of the reserved second airbag, and the reserved second airbag and the outer side of the reserved connecting cable are in contact with each other.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The stable pressure sensor joint connector is provided with an auxiliary self-locking structure. When the reserved connection cable is plugged into the reserved interface end outside the pressure sensor body, the user only needs to rotate the nested threaded member to rotate it along the outer side of the external extension end toward the outer thread, so that the external extension end extending outward from the outer thread end can be stably pressed inward, so as to adaptively gradually move inward, meet the outer self-locking positioning requirements of the reserved connection cables with different outer plug-in shapes, and in the process of working, the docking part realizes a self-locking working state, avoiding the undesirable phenomenon of falling off and loosening during the long-term vibration inside the car, ensuring the overall sensing quality and sensing accuracy, and improving the practicality of the device;

[0021] Furthermore, in the process of the nested threaded part rotating outward, the built-in nested docking part with a constant relative rotation angle to the outer nested docking part will cooperate with the reserved steel wire rope to drive the wedge-shaped docking part at the end to move along the inside of the pressure sensor body, and the inwardly moved wedge-shaped docking part will then press downward on the vertical docking resistance limiter in contact, so that the vertical docking resistance limiter is nested with the annular external reserved groove on the outer side of the reserved connection cable to form a locking structure. With the adaptive positioning of the external extension end, the reserved connection cable inside the device is subjected to a secondary self-locking treatment, and the double self-positioning improves the docking strength of the device to avoid looseness.

[0022] Furthermore, a secondary sealing structure is provided. When the nested fitting part slides along the inside of the pressure sensor body as the wedge-shaped docking part moves, the nested fitting part that moves inward synchronously will apply pressure to the contacted reserved first airbag, so that the reserved first airbag is pressurized and forms an air supply treatment with the inner side of the reserved second airbag through the air supply hose, and then the expanded reserved second airbag and the outer side of the reserved connecting cable are sealed to each other, thereby sealing the docking gap of the reserved connecting cable to prevent moisture or dust from entering, thereby increasing the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 It is a schematic diagram of a half-cut three-dimensional structure of the present invention;

[0025] Figure 3 A schematic diagram of a partial three-dimensional structure of the second airbag is reserved for the present invention;

[0026] Figure 4 A schematic diagram of a half-cut three-dimensional structure of a reserved connection cable for the present invention;

[0027] Figure 5 For the present invention Figure 2 A schematic diagram of the partially enlarged structure;

[0028] Figure 6 A schematic diagram of the three-dimensional structure of the first airbag is reserved for the present invention;

[0029] Figure 7 It is a schematic diagram of the three-dimensional structure of the nested fitting of the present invention;

[0030] Figure 8 A schematic diagram of a half-cut three-dimensional structure of a reserved interface end of the present invention;

[0031] Fig. 9 A schematic diagram of the three-dimensional structure of the reserved connection cables for the present invention.

[0032] In the figure: 1. Pressure sensor body; 2. Reserved interface end; 3. External extension end; 4. Nested threaded part; 5. Built-in nested docking part; 6. Reserved steel wire rope; 7. Horizontal guide groove; 8. Wedge-shaped docking part; 9. Vertical docking abutment limiter; 10. First reset spring; 11. Reserved connecting cable; 12. External reserved groove; 13. Second reset spring; 14. Nested fitting part; 15. Reserved first airbag; 16. Air supply hose; 17. Reserved second airbag. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figure 1-9 The present invention provides the following technical solutions: a stable pressure sensor joint connector, comprising a pressure sensor body 1, a reserved interface end 2, an external extension end 3, a nested threaded member 4, a built-in nested docking member 5, a reserved steel wire rope 6, a transverse guide groove 7, a wedge-shaped docking member 8, a vertical docking abutment limiter 9, a first return spring 10, a reserved connection cable 11, an external reserved groove 12, a second return spring 13, a nested fitting member 14, a reserved first airbag 15, an air supply hose 16, and a reserved second airbag 17;

[0035] A reserved interface end 2 is installed on the outer side of the pressure sensor body 1, and a reserved connection cable 11 is plugged into the inner side of the reserved interface end 2;

[0036] The outer side of the reserved interface end 2 is fixedly connected with an elastic external extension end 3, and the outer side of the external extension end 3 is threadedly connected with a nested threaded member 4, and the outer end of the nested threaded member 4 is nested with a built-in nested docking member 5, and the inner side of the pressure sensor body 1 and the reserved interface end 2 is provided with an auxiliary self-locking structure for positioning the contacted reserved connection cable 11;

[0037] The auxiliary self-locking structure is provided with a reserved steel wire rope 6, and the reserved steel wire rope 6 is docked on the outside of the built-in nested docking piece 5, and the reserved steel wire rope 6 passes through the inside of the pressure sensor body 1; a transverse guide groove 7 is opened inside the pressure sensor body 1, and a wedge-shaped docking piece 8 is nested and installed on the inner side of the transverse guide groove 7, and the end of the wedge-shaped docking piece 8 is docked with the end of the reserved steel wire rope 6.

[0038] The inner side of the pressure sensor body 1 is fixedly connected with a first return spring 10, and the outer side of the first return spring 10 is butted with a vertical butt contact stopper 9, and the vertical butt contact stopper 9 is nested and butted along the inner wall of the pressure sensor body 1; the outer surface of the reserved connection cable 11 is provided with an external reserved groove 12, and the external reserved groove 12 corresponds to the outer position of the vertical butt contact stopper 9. The nested threaded member 4 forms a threaded connection structure along the outer side of the external extension end 3, and a relatively nested rotation structure is formed between the nested threaded member 4 and the outer built-in nested butt joint member 5, and the built-in nested butt joint member 5 forms a traction structure with the nested threaded member 4 moving outward, in cooperation with the reserved steel wire rope 6 and the wedge-shaped butt joint member 8.

[0039] The wedge-shaped docking piece 8 is distributed at equal angles with respect to the center point of the pressure sensor body 1, and during the inward movement of the wedge-shaped docking piece 8, pressure is simultaneously applied to the vertical docking abutment limit piece 9 in contact, and the vertical docking abutment limit piece 9 forms a locking structure with the reserved connection cable 11 through the external reserved groove 12, and the vertical docking abutment limit piece 9 forms an elastic reset structure through the first reset spring 10. As the reserved connection cable 11 is plugged into the reserved interface end 2 on the outside of the pressure sensor body 1, the user only needs to rotate the nested threaded piece 4 to make it rotate along the outer side of the external extension end 3 toward the outer thread, so that the external extension end 3 extending outward from the outer thread end can be stably pressed inward, so that it can adaptively move inward gradually, meeting the self-locking positioning requirements of the outer side of the reserved connection cable 11 with different outer plug-in shapes. During the working process, the docking part realizes a self-locking working state, avoiding the undesirable phenomenon of falling off and loosening during the long-term vibration inside the car, ensuring the overall sensing quality and sensing accuracy, and the nested threaded piece 4 During the process of the thread rotating outward, the built-in nested docking part 5, whose relative rotation angle with its outer nested docking part remains unchanged, will cooperate with the reserved steel wire rope 6 to drive the wedge-shaped docking part 8 at the end to move along the inside of the pressure sensor body 1. The inwardly moved wedge-shaped docking part 8 will then exert downward pressure on the contacting vertical docking resistance limiter 9, so that the vertical docking resistance limiter 9 is nested with the annular external reserved groove 12 on the outside of the reserved connecting cable 11 to form a locking structure. With the adaptive positioning of the external extension end 3, the reserved connecting cable 11 inside the device is subjected to secondary self-locking treatment, and the double self-positioning improves the docking strength of the device.

[0040] Embodiment 2: Based on Embodiment 1, a secondary sealing structure is also disclosed, and its specific structure is as follows:

[0041] The inner wall of the reserved interface end 2 is provided with a secondary sealing structure which is adaptively deformed to the outer side of the reserved connection cable 11 .

[0042] The secondary sealing structure is provided with a nested fitting 14, and the nested fitting 14 is fixedly docked on the outer side of the lower end of the wedge-shaped docking piece 8, and the nested fitting 14 is nested and docked with the inner wall of the reserved interface end 2, and the interior of the reserved interface end 2 is adhesively connected with a reserved first airbag 15; the lower end of the wedge-shaped docking piece 8 is fixedly connected with a second return spring 13, and the second return spring 13 and the interior of the reserved interface end 2 are docked with each other.

[0043] An air supply hose 16 is provided through the outside of the reserved first airbag 15, and the air supply hose 16 passes through the inside of the reserved interface end 2. A reserved second airbag 17 is bonded to the inner wall of the reserved interface end 2, and the reserved second airbag 17 is connected to the air supply hose 16. The wedge-shaped docking piece 8 and the nested fitting piece 14 are an integrated structure, and the nested fitting piece 14 forms a sliding fitting structure along the inside of the pressure sensor body 1 as the wedge-shaped docking piece 8 moves, and the inwardly moving nested fitting piece 14 synchronously presses the contacted reserved first airbag 15. During the process of the reserved first airbag 15 being pressurized, an air supply structure is formed with the inner side of the reserved second airbag 17 through the air supply hose 16, and the reserved second airbag 17 and the outer side of the reserved connecting cable 11 are fitted together; during the process of the nested fitting 14 sliding along the inside of the pressure sensor body 1 with the movement of the wedge-shaped docking piece 8, the nested fitting 14 that moves inward synchronously will apply pressure to the contacted reserved first airbag 15, so that the reserved first airbag 15 is pressurized and an air supply treatment is formed with the inner side of the reserved second airbag 17 through the air supply hose 16, and then the expanded reserved second airbag 17 and the outer side of the reserved connecting cable 11 are fitted together and sealed, thereby sealing the docking gap of the reserved connecting cable 11 to prevent moisture or dust from entering.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A stable pressure sensor joint connector, comprising a pressure sensor body (1), a reserved interface end (2) and a reserved connection cable (11), wherein the reserved interface end (2) is installed on the outer side of the pressure sensor body (1), and the reserved connection cable (11) is plugged into the inner side of the reserved interface end (2); Features: The outer side of the reserved interface end (2) is fixedly connected to an elastic external extension end (3), and the outer side of the external extension end (3) is threadedly connected to a nested threaded member (4), the outer end of the nested threaded member (4) is nested with a built-in nested docking member (5), and the inner sides of the pressure sensor body (1) and the reserved interface end (2) are provided with an auxiliary self-locking structure for positioning a contacting reserved connection cable (11); The inner wall of the reserved interface end (2) is provided with a secondary sealing structure that is adaptively deformed to the outer side of the reserved connection cable (11); The auxiliary self-locking structure is provided with a reserved steel wire rope (6), and the reserved steel wire rope (6) is butted against the outside of the built-in nested butt joint (5), and the reserved steel wire rope (6) runs through the inside of the pressure sensor body (1); The pressure sensor body (1) is provided with a transverse guide groove (7) inside, and a wedge-shaped docking piece (8) is nested and installed inside the transverse guide groove (7), and the end of the wedge-shaped docking piece (8) is docked with the end of the reserved steel wire rope (6); A first return spring (10) is fixedly connected to the inner side of the pressure sensor body (1), and a vertical butt-jointed abutment stopper (9) is butt-jointed to the outer side of the first return spring (10), and the vertical butt-jointed abutment stopper (9) is nested and butt-jointed along the inner wall of the pressure sensor body (1); An external reserved groove (12) is provided on the outer surface of the reserved connection cable (11), and the external reserved groove (12) corresponds to the outer side position of the vertical docking abutment stopper (9); The nested threaded member (4) forms a threaded connection structure along the outer side of the external extension end (3), and a relatively nested rotation structure is formed between the nested threaded member (4) and the outer built-in nested docking member (5), and the built-in nested docking member (5) cooperates with the reserved steel wire rope (6) and the wedge-shaped docking member (8) to form a traction structure as the nested threaded member (4) moves outward; The wedge-shaped docking member (8) is distributed at equal angles with respect to the center point of the pressure sensor body (1), and during the inward movement of the wedge-shaped docking member (8), pressure is simultaneously applied to the vertical docking abutment stopper (9) in contact therewith, and the vertical docking abutment stopper (9) forms a locking structure with the reserved connection cable (11) through the external reserved groove (12), and the vertical docking abutment stopper (9) forms an elastic reset structure through the first reset spring (10); The secondary sealing structure is provided with a nested fitting (14), and the nested fitting (14) is fixedly docked on the outer side of the lower end of the wedge-shaped docking piece (8), and the nested fitting (14) is nested and docked with the inner wall of the reserved interface end (2), and the interior of the reserved interface end (2) is bonded and connected with a reserved first air bag (15); A second return spring (13) is fixedly connected to the lower end of the wedge-shaped docking piece (8), and the second return spring (13) and the interior of the reserved interface end (2) are docked with each other.

2. A stable pressure sensor joint connector according to claim 1, characterized in that: An air supply hose (16) is provided through the outside of the reserved first air bag (15), and the air supply hose (16) passes through the inside of the reserved interface end (2). A reserved second air bag (17) is bonded to the inner wall of the reserved interface end (2), and the reserved second air bag (17) and the air supply hose (16) are connected to each other.

3. A stable pressure sensor joint connector according to claim 2, characterized in that: The wedge-shaped docking piece (8) and the nested fitting piece (14) are an integrated structure, and the nested fitting piece (14) forms a sliding fitting structure along the inside of the pressure sensor body (1) as the wedge-shaped docking piece (8) moves, and the inwardly moving nested fitting piece (14) simultaneously applies pressure to the contacting reserved first airbag (15).

4. A stable pressure sensor joint connector according to claim 3, characterized in that: During the process of the reserved first airbag (15) being pressurized, an air supply structure is formed through the air supply hose (16) and the inner side of the reserved second airbag (17), and the reserved second airbag (17) and the outer side of the reserved connecting cable (11) are in contact with each other.

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