Novel differential pressure sensor connector

Abstract

The utility model discloses a novel differential pressure transducer joint which comprises a transducer body, one side of the transducer body is provided with two symmetrical air inlet pipes, one side of each air inlet pipe far away from the transducer body is communicated with a fixing pipe, the outer side of each air inlet pipe is provided with a threaded pipe, and the outer side of each threaded pipe is provided with a nut. The side, away from the sensor body, of the nut is fixedly connected with the connecting ring, the side, away from the nut, of the connecting ring is movably connected with the extrusion pipe, the fixing pipe is a conical pipe, and the inner wall of the extrusion pipe is provided with an inclined face matched with the fixing pipe. The sensor connector is simple in structure and convenient to operate, the connection stability between the connector and the hose is good, the sealing performance is high, and the phenomenon of air leakage at the connector is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of differential pressure sensors, in particular to a novel differential pressure sensor joint. Background Art

[0002] A differential pressure sensor is a sensor used to measure the difference between two pressures. It is usually used to measure the pressure difference between the front and rear ends of a device or component, and is widely used in automobile exhaust systems. In automobile exhaust systems, the differential pressure sensor connector is a part that connects the differential pressure sensor and the air duct. Since the connected air duct is flammable or highly polluting gas, the sealing performance is an important performance indicator of the differential pressure sensor. Traditional differential pressure sensor pipe connectors are mostly hoses directly connected to the outside of the pipe. The connection method has poor sealing performance and often leaks, which is not conducive to the use of differential pressure sensors. For this reason, we propose a new differential pressure sensor connector. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a new differential pressure sensor connector. The utility model solves the problem that the traditional differential pressure sensor pipe connector is mostly a hose directly sleeved on the outside of the pipe, the connection method has poor sealing performance, often leaks, and is not conducive to the use of the differential pressure sensor.

[0004] A novel differential pressure sensor joint in the utility model comprises a sensor body, two symmetrical air inlet pipes are arranged on one side of the sensor body, the air inlet pipes are connected with a fixed pipe on a side away from the sensor body, a threaded pipe is arranged on the outside of the air inlet pipe, a nut is arranged on the outside of the threaded pipe, the nut is fixedly connected with a connecting ring on a side away from the sensor body, the connecting ring is movably connected with an extrusion tube on a side away from the nut, the fixed tube is a tapered tube, and an inclined surface matching the fixed tube is provided on the inner wall of the extrusion tube.

[0005] In the above solution, anti-slip grooves are provided on the outer side of the connecting ring.

[0006] In the above solution, an annular expansion rib is provided at one end of the air inlet pipe located inside the threaded tube.

[0007] In the above solution, a sealing ring is provided between the air inlet pipe and the threaded pipe, and a groove is provided on the side of the sealing ring away from the sensor body.

[0008] In the above solution, the cross section of the slot is trapezoidal.

[0009] In the above solution, a mounting plate is provided below the sensor body, and mounting holes are provided at four corners of the mounting plate.

[0010] The advantages and beneficial effects of the utility model are as follows: the utility model provides a new type of differential pressure sensor connector, which can seal the end of the hose through a sealing ring, and rotate the nut or the connecting ring, so that the nut and the connecting ring drive the extrusion tube to move horizontally. When the extrusion tube moves toward the sensor body, the extrusion tube squeezes the hose and the fixed tube, and the hose can be stably fixed between the extrusion tube and the fixed tube through the mutual cooperation between the extrusion tube and the fixed tube. This type of sensor connector has a simple structure, is easy to operate, has good connection stability between the interface and the hose, has strong sealing performance, and effectively avoids air leakage at the interface. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a cross-sectional view of the utility model;

[0014] Figure 3 This is a schematic structural diagram of part A of the utility model.

[0015] In the figure: 1. Sensor body 2. Intake pipe 3. Fixed pipe 4. Threaded pipe

[0016] 5. Nut 6. Connecting ring 7. Anti-slip pattern 8. Extrusion tube

[0017] 9. Annular ribs 10. Sealing ring 11. Slot 12. Mounting plate

[0018] 13. Mounting hole. DETAILED DESCRIPTION

[0019] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0020] like Figure 1-3As shown, the utility model is a novel differential pressure sensor joint, comprising a sensor body 1, one side of the sensor body 1 is provided with two symmetrical intake pipes 2, the intake pipe 2 is connected with a fixed pipe 3 away from the sensor body 1, a threaded pipe 4 is provided on the outside of the intake pipe 2, a nut 5 is provided on the outside of the threaded pipe 4, the nut 5 and the threaded pipe 4 are threadedly connected, the nut 5 is fixedly connected with a connecting ring 6 on the side away from the sensor body 1, the connecting ring 6 is movably connected with an extrusion tube 8 on the side away from the nut 5, the fixed pipe 3 is a tapered pipe, the inner wall of the extrusion tube 8 is provided with an inclined surface matching the fixed pipe 3, when the nut 5 is rotated, the nut 5 moves horizontally on the threaded pipe 4, the extrusion tube 8 can move horizontally through the transmission of the connecting ring 6, when the extrusion tube 8 moves toward the side of the sensor body 1, the extrusion tube 8 squeezes the hose and the fixed pipe 3, and the mutual cooperation between the extrusion tube 8 and the fixed pipe 3 makes the hose stably fixed between the extrusion tube 8 and the fixed pipe 3.

[0021] The outer side of the connecting ring 6 is provided with anti-skid patterns 7, and the setting of the anti-skid patterns 7 increases the friction between the fingers and the connecting ring 6, so that when the staff connects the hose, the hose can be fixed by installing the connecting ring 6.

[0022] The air intake pipe 2 is provided with an annular expansion rib 9 at one end inside the threaded tube 4. When the hose is inserted between the air intake pipe 2 and the threaded tube 4, the annular expansion rib 9 enables the end of the hose to be stably fixed between the air intake pipe 2 and the threaded tube 4.

[0023] A sealing ring 10 is provided between the air inlet pipe 2 and the threaded pipe 4 . A clamping groove 11 is provided on the side of the sealing ring 10 away from the sensor body 1 . The sealing ring 10 can seal the end of the hose.

[0024] The cross section of the slot 11 is trapezoidal.

[0025] A mounting plate 12 is disposed below the sensor body 1 , and mounting holes 13 are disposed at four corners of the mounting plate 12 , through which the sensor body 1 can be fixedly mounted.

[0026] Specifically, in the utility model, when connecting the hose to the sensor body 1, first insert the hose into the extrusion tube 8, then insert the end of the hose between the intake pipe 2 and the threaded tube 4, and the end of the hose is located inside the card groove 11 on the sealing ring 10. At this time, the end of the hose can be sealed by the sealing ring 10. Secondly, rotate the nut 5 or the connecting ring 6, the nut 5 and the connecting ring 6 drive the extrusion tube 8 to move horizontally, and when the extrusion tube 8 moves toward the side of the sensor body 1, the extrusion tube 8 squeezes the tube soft and the fixed tube 3. Through the mutual cooperation between the extrusion tube 8 and the fixed tube 3, the hose can be stably fixed between the extrusion tube 8 and the fixed tube 3.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 novel differential pressure sensor connector, comprising a sensor body (1), characterized in that: Two symmetrical air inlet pipes (2) are provided on one side of the sensor body (1); the air inlet pipe (2) is connected to a fixed pipe (3) on a side away from the sensor body (1); a threaded pipe (4) is provided on the outside of the air inlet pipe (2); a nut (5) is provided on the outside of the threaded pipe (4); the nut (5) is fixedly connected to a connecting ring (6) on a side away from the sensor body (1); the connecting ring (6) is movably connected to an extruded pipe (8) on a side away from the nut (5); the fixed pipe (3) is a conical pipe; the inner wall of the extruded pipe (8) is provided with an inclined surface matching the fixed pipe (3).

2. A novel differential pressure sensor connector according to claim 1, characterized in that: The outer side of the connecting ring (6) is provided with anti-slip grooves (7).

3. A novel differential pressure sensor connector according to claim 1, characterized in that: An annular expansion rib (9) is provided at one end of the air inlet pipe (2) located inside the threaded pipe (4).

4. A novel differential pressure sensor connector according to claim 1, characterized in that: A sealing ring (10) is provided between the air inlet pipe (2) and the threaded pipe (4), and a clamping groove (11) is provided on the side of the sealing ring (10) away from the sensor body (1).

5. A novel differential pressure sensor connector according to claim 4, characterized in that: The cross section of the clamping groove (11) is trapezoidal.

6. A novel differential pressure sensor connector according to claim 1, characterized in that: A mounting plate (12) is provided below the sensor body (1), and mounting holes (13) are provided at four corners of the mounting plate (12).

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