Connecting device for atmosphere data sensor test

Abstract

The utility model discloses a connecting device for an atmosphere data sensor test, which relates to the technical field of atmosphere data sensors and comprises a connecting plug and a sensor connecting seat, and the connecting plug is connected with the sensor connecting seat in a rotary clamping mode. The connecting plug comprises a connector shell, a pagoda air inlet assembly, a sealing ring and a gland. The pagoda air inlet assembly is movably arranged in the connector shell, the gland is fixedly arranged at the upper end of the connector shell, and the top of the pagoda air inlet assembly partially extends out of the gland. The bottom of the connector shell is connected with the sensor connecting base in an inserted mode in a rotary clamping mode, the sealing ring is arranged in the connector shell located at the bottom of the pagoda air inlet assembly, and the top of the sensor connecting base partially extends into the connector shell to make contact with the sealing ring. The gas path adapter is reasonable in design, the pagoda gas inlet assembly is movably arranged in the connector shell, the problem that a sealing ring is possibly damaged when an existing gas path adapter with threads is screwed down is solved, the calibration test operation process is simplified, and the test efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to atmospheric data sensor technical field, more specifically relates to a kind of atmospheric data sensor test connecting device technical field. BACKGROUND

[0002] After atmospheric data sensor installation is completed, the precision of sensor needs to be calibrated, to ensure that the atmospheric data sensor installed can be used normally. When calibrating atmospheric data sensor using traditional method, there are usually two methods, of which the first one needs to add tooling at the bottom of sensor cavity for connection. The upper end surface of the tooling is in contact with the bottom surface of atmospheric data sensor, and a sealing ring is added between the two contact surfaces for sealing, and the tooling and atmospheric data sensor are connected by screws. If the contact surface of the tooling and the sensor cavity does not fit tightly, it may cause air leakage, affecting the calibration accuracy of the sensor. At the same time, when the tooling is removed after each calibration, the installation screws need to be removed, increasing the additional workload.

[0003] The other one is a threaded air passage adapter, which tightly fits the sealing ring at the bottom of the adapter with the sensor by tightening the threads. In this way, the sealing ring will rotate with the adapter, and in addition to being subjected to normal compression force, it will also be subjected to transverse shear force. The shear force generated by repeated disassembly and assembly will damage the rubber sealing ring, affecting the sealing performance. SUMMARY

[0004] The utility model aims at: in order to solve the problem that threaded air passage adapter may damage the sealing ring when tightening, improve the air tightness reliability of the connection, the utility model provides a kind of atmospheric data sensor test connecting device.

[0005] The utility model discloses the following technical scheme in order to realize the above-mentioned purpose:

[0006] The utility model provides a kind of atmospheric data sensor test connecting device, including connecting plug and sensor connecting seat, connecting plug and sensor connecting seat are connected by rotating clamping mode;

[0007] The connecting plug includes connector shell, pagoda air inlet assembly, sealing ring and gland;

[0008] The pagoda air inlet assembly is movably arranged in the connector shell, and the gland is fixedly arranged on the upper end of the connector shell, and the top part of the pagoda air inlet assembly extends out of the gland;

[0009] The connector shell bottom and the sensor connecting seat are inserted by rotating clamping mode, the sealing ring is arranged in the connector shell at the bottom of the pagoda air inlet assembly, and the top part of the sensor connecting seat extends into the connector shell and contacts the sealing ring.

[0010] In one embodiment, a ring-shaped boss is arranged in the joint shell, a first ring-shaped groove is arranged on the top of the ring-shaped boss, a first ball assembly is arranged in the first ring-shaped groove, a second ring-shaped groove is arranged on the lower surface of the gland, and a second ball assembly is arranged in the second ring-shaped groove; the first ball assembly and the second ball assembly are in rolling contact with the pagoda-shaped air inlet assembly.

[0011] In one embodiment, the pagoda-shaped air inlet assembly comprises an air inlet, a connecting column at the top, a sliding column at the middle, and a pressing column at the bottom, the connecting column, the sliding column, and the pressing column are integrally formed, and the axes of the three are located on the same straight line, and the air inlet penetrates the centers of the connecting column, the sliding column, and the pressing column in the axial direction in turn.

[0012] In one embodiment, the diameter of the sliding column is greater than the diameter of the connecting column and the diameter of the pressing column; the connecting column partially extends out of the gland; the pressing column is in contact with the sealing ring; the first ball assembly is in contact with the upper edge of the top of the sliding column; and the second ball assembly is in contact with the lower edge of the bottom of the sliding column.

[0013] In one embodiment, the sensor connecting seat comprises a sensor boss, the sensor boss comprises an inner column and an outer cylinder arranged outside the inner column, a plug-in gap for plugging the joint shell is arranged between the inner column and the outer cylinder, and the inner column extends into the joint shell and is in contact with the sealing ring.

[0014] The inner column and the outer cylinder are fixedly arranged on the atmospheric data sensor, and the inner column top is provided with an air inlet channel in communication with the air inlet of the pagoda-shaped air inlet assembly.

[0015] In one embodiment, the side wall of the joint shell is provided with a mounting groove, and the mounting groove is provided with an elastic clamping piece; the outer cylinder is provided with a downwardly rotating spiral groove, and the elastic clamping piece is matched with the downwardly rotating spiral groove.

[0016] In one embodiment, the elastic clamping piece comprises a clamping block and a spring connected to the bottom of the clamping block, the bottom of the spring is fixed to the bottom of the mounting groove, and the clamping block partially extends out of the mounting groove.

[0017] The shape of the clamping block is adapted to the shape of the downwardly rotating spiral groove.

[0018] Specifically, the outer cylinder side has a spiral groove. The tail end of the spiral groove has a clamping groove. The top side of the guide block and the side of the entrance of the spiral groove are both wedge-shaped surfaces, which improve the continuity of the connection plug being screwed in.

[0019] In one embodiment, the side wall of the joint shell is provided with a clamping groove in communication with the bottom end of the downwardly rotating spiral groove, the clamping groove is vertically arranged and located higher than the end position of the spiral groove.

[0020] In one embodiment, the elastic clamping piece further comprises two guide blocks arranged in the mounting groove, and the clamping block is slidingly clamped between the two guide blocks.

[0021] Specifically, the clamping block and the spring are arranged at the lower position of the plug housing.

[0022] In one embodiment, the gland is fixedly arranged at the upper end of the joint housing by a screw.

[0023] Working principle: the plug housing is the frame of the connecting plug; the pagoda air inlet assembly is the external air pressure inlet. The gland is fixed with the plug housing by the side screw to limit the pagoda air inlet assembly. The pagoda air inlet assembly is in contact with the inner side of the gland and the inside of the plug housing through the ball. The balls at both ends of the pagoda air inlet assembly are placed in the designed annular groove. A sealing ring is arranged below the pagoda air inlet assembly, and the other side of the sealing ring is in contact with the end surface of the sensor connecting seat of the atmospheric data sensor.

[0024] When the pagoda air inlet assembly is screwed into the atmospheric data sensor boss, the clamping block will be pressed downward until the clasp is completely "contained", and the spring is compressed at this time. The clamping block moves along the spiral groove, and in this process, the plug housing will rotate clockwise and move downward. At the same time, the gland fixed with the joint housing also rotates clockwise and moves downward. The ball in contact with the gland will rotate along the annular groove and exert a downward force on the pagoda air inlet assembly. The pagoda air inlet assembly and the balls at both ends (the first ball assembly and the second ball assembly) are in rolling contact, and the friction is very small, so no rotation occurs, only vertical downward movement occurs. At this time, the sealing ring in contact with the bottom of the pagoda air inlet assembly is only subjected to pressure perpendicular to the contact surface, and is thus compressed to produce a sealing effect. When the clamping block moves to the tail of the spiral groove, due to the existence of the clamping groove at the tail of the spiral groove, the clamping block is no longer subjected to pressure, and the elastic force of the compressed spring is released, pushing the clamping block into the clamping groove to complete the fixation of the connecting plug.

[0025] When the connecting plug is removed, the clamping block is pressed downward and the joint housing is rotated counterclockwise.

[0026] The beneficial effects of the utility model are as follows:

[0027] 1. The pagoda air inlet assembly is movably arranged in the joint housing, solving the problem that the existing threaded air path adapter may damage the sealing ring when tightened, simplifying the calibration test operation process and improving the test efficiency.

[0028] 2. The clamping block and the spring are arranged at the lower position of the plug housing. The clamping block is arranged below the spring and can move axially along the spring.

[0029] 3. The outer cylinder side has a spiral groove. The tail end of the spiral groove has a clamping groove. The top of the guide block and the side of the spiral groove entrance are wedge-shaped, which improves the continuity of the plug rotation. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0031] Figure 1 is a structural schematic view when the present application is connected with an air data sensor;

[0032] Figure 2 is Figure 1 a perspective view;

[0033] Figure 3 is Figure 1 a schematic view of the connection plug and the sensor connecting seat;

[0034] Figure 4 is Figure 3 a sectional view;

[0035] Figure 5 is Figure 3 a schematic view of the internal structure;

[0036] Figure 6 is a schematic view of the elastic clamping piece

[0037] Reference signs: 1-connection plug, 2-sensor connecting seat;

[0038] 11-pagoda air inlet assembly, 12-gland, 13-joint shell, 14-elastic clamping piece, 15-sealing ring;

[0039] 111-connection column, 112-sliding column, 113-pressing column;

[0040] 141-clamping block, 142-spring, 143-guide block. DETAILED DESCRIPTION

[0041] In order to make the technical problems, technical schemes and technical effects of the utility model clearer, the technical schemes in the utility model embodiments will be described clearly and completely in combination with the drawings in the utility model embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. The components of the utility model embodiments described and shown in the drawings herein can be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0043] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second" and the like are only used to distinguish description, and cannot be understood as indicating or implying relative importance.

[0044] In the description of the utility model embodiments, it should be noted that the directions or position relationships indicated by the terms "inner", "outer", "upper" and the like are based on the directions or position relationships shown in the drawings, or the directions or position relationships commonly placed when the utility model product is used, which are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated devices or elements must have a specific direction, be constructed and operated in a specific direction, therefore, cannot be understood as a limitation on the utility model.

[0045] Embodiment 1

[0046] As shown in Figures 1 to 6 The embodiment provides a connecting device for atmospheric data sensor test, which comprises a connecting plug 1 and a sensor connecting seat 2, and the connecting plug 1 and the sensor connecting seat 2 are connected in a rotary clamping mode.

[0047] The connecting plug 1 comprises a connector shell 13, a pagoda air inlet assembly 11, a sealing ring 15 and a gland 12.

[0048] The pagoda air inlet assembly 11 is movably arranged in the connector shell 13, the gland 12 is fixedly arranged on the upper end of the connector shell 13, and the top part of the pagoda air inlet assembly 11 extends out of the gland 12.

[0049] The bottom of the connector housing 13 is inserted into the sensor connector 2 by a rotating snap-fit ​​method. The sealing ring 15 is located inside the connector housing 13 at the bottom of the pagoda air inlet assembly 11. The top part of the sensor connector 2 extends into the interior of the connector housing 13 and contacts the sealing ring 15.

[0050] Example 2

[0051] like Figures 1 to 6 As shown, this embodiment provides a connection device for testing atmospheric data sensors, including a connector 1 and a sensor connector 2. The connector 1 and the sensor connector 2 are connected by a rotational snap-fit ​​method.

[0052] The connector 1 includes a connector housing 13, a pagoda-shaped air inlet assembly 11, a sealing ring 15, and a pressure cap 12;

[0053] The pagoda-shaped air inlet assembly 11 is movably disposed inside the connector housing 13, and the pressure cap 12 is fixedly disposed on the upper end of the connector housing 13. The top part of the pagoda-shaped air inlet assembly 11 extends out of the pressure cap 12.

[0054] The bottom of the connector housing 13 is inserted into the sensor connector 2 by a rotating snap-fit ​​method. The sealing ring 15 is located inside the connector housing 13 at the bottom of the pagoda air inlet assembly 11. The top part of the sensor connector 2 extends into the interior of the connector housing 13 and contacts the sealing ring 15.

[0055] The connector housing 13 has an annular boss inside, and a first annular groove is provided on the top of the annular boss. A first ball assembly is provided in the first annular groove. A second annular groove is provided on the lower surface of the pressure cover 12. A second ball assembly is provided in the second annular groove. Both the first ball assembly and the second ball assembly are in rolling contact with the pagoda air inlet assembly 11.

[0056] The pagoda-shaped air intake assembly 11 includes an air intake, a top connecting column 111, a middle sliding column 112, and a bottom pressing column 113. The connecting column 111, the sliding column 112, and the pressing column 113 are integrally formed, and their axes are on the same straight line. The air intake passes through the center of the connecting column 111, the sliding column 112, and the pressing column 113 in sequence along the axial direction.

[0057] Example 3

[0058] This embodiment is a further optimization based on embodiment 2, specifically:

[0059] The diameter of the sliding post 112 is larger than the diameter of the connecting post 111 and larger than the diameter of the clamping post 113; the connecting post 111 extends out of the pressure cap 12; the clamping post 113 contacts the sealing ring 15; the first ball assembly contacts the upper top edge of the sliding post 112; the second ball assembly contacts the lower bottom edge of the sliding post 112.

[0060] The sensor connecting seat 2 comprises a sensor boss, which comprises an inner cylinder and an outer cylinder arranged outside the inner cylinder, and a plug-in gap for the plug-in joint shell 13 is arranged between the inner cylinder and the outer cylinder, and the inner cylinder extends into the joint shell 13 and is in contact with the sealing ring 15.

[0061] The inner cylinder and the outer cylinder are fixedly arranged on the atmospheric data sensor, and the inner cylinder top is provided with an air inlet channel in communication with the air inlet of the pagoda air inlet assembly 11.

[0062] Embodiment 4

[0063] This embodiment is further optimized on the basis of embodiment 3, specifically:

[0064] The side wall of the joint shell 13 is provided with a mounting groove, and the elastic clamping piece 14 is arranged in the mounting groove; the outer cylinder is provided with a downward spiral groove, and the elastic clamping piece 14 cooperates with the downward spiral groove.

[0065] The elastic clamping piece 14 comprises a clamping block 141 and a spring 142 connected to the bottom of the clamping block 141, the bottom of the spring 142 is fixed to the bottom of the mounting groove, and the clamping block 141 partially extends out of the mounting groove.

[0066] The shape of the clamping block 141 is adapted to the shape of the downward spiral groove.

[0067] Specifically, the outer cylinder side has a spiral groove. The tail end of the spiral groove has a clamping groove. The top side of the guide block 143 and the side of the entrance of the spiral groove are both wedge-shaped surfaces, which improve the continuity of the rotation of the connecting plug 1.

[0068] Embodiment 5

[0069] This embodiment is further optimized on the basis of embodiment 3, specifically:

[0070] The side wall of the joint shell 13 is provided with a clamping groove in communication with the bottom end of the downward spiral groove, and the clamping groove is vertically arranged and located higher than the end position of the spiral groove.

[0071] The elastic clamping piece 14 further comprises two guide blocks 143 arranged in the mounting groove, and the clamping block 141 is slidingly clamped between the two guide blocks 143.

[0072] Specifically, the plug shell is provided with a clamping block 141 and a spring 142 at a lower position. The clamping block 141 is arranged below the spring 142, and the clamping block 141 can move axially along the spring 142.

[0073] The gland 12 is fixedly arranged on the upper end of the joint shell 13 by screws.

[0074] Working principle: the plug shell is the frame of the connecting plug 1; the pagoda air inlet assembly 11 is the external air pressure inlet. The gland 12 is fixed with the plug shell through the side screw, and the pagoda air inlet assembly 11 is limited. The pagoda air inlet assembly 11 contacts the inside of the gland 12 and the inside of the plug shell through the ball respectively. The balls at both ends of the pagoda air inlet assembly 11 are placed in the designed annular groove. The sealing ring 15 is installed below the pagoda air inlet assembly 11, and the other side of the sealing ring 15 contacts the end surface of the sensor connecting seat 2 of the atmospheric data sensor.

[0075] When the pagoda air inlet assembly 11 is screwed into the atmospheric data sensor boss, the clamping block 141 will be subjected to pressure and move downward until the clasp is completely "contained", at which time the spring 142 is compressed. The clamping block 141 moves along the spiral groove, and in the process, the plug shell will rotate clockwise and move downward. At the same time, the gland 12 fixed with the plug shell 13 will also rotate clockwise and move downward. The ball in contact with the gland 12 will rotate along the annular groove and exert a downward force on the pagoda air inlet assembly 11. The pagoda air inlet assembly 11 and the balls at both ends (the first ball assembly and the second ball assembly) are in rolling contact, and the friction is very small, so no rotation occurs, only vertical downward movement. At this time, the sealing ring 15 in contact with the bottom of the pagoda air inlet assembly 11 is only subjected to pressure perpendicular to the contact surface, and is compressed to produce a sealing effect. When the clamping block 141 moves to the tail of the spiral groove, due to the existence of the clamping groove at the tail of the spiral groove, the clamping block 141 is no longer subjected to pressure, and the elastic force of the compressed spring 142 is released. The elastic force pushes the clamping block 141 into the clamping groove, completing the fixation of the connecting plug 1.

[0076] When the connecting plug 1 is removed, press the clamping block 141 downward and rotate the plug shell 13 counterclockwise.

Claims

1. An atmospheric data sensor test connection device, characterized by, The utility model provides a sensor connecting device, which comprises a connecting plug (1) and a sensor connecting seat (2), wherein the connecting plug (1) is connected with the sensor connecting seat (2) through a rotary clamping mode. The connecting plug (1) comprises a joint shell (13), a pagoda-shaped air inlet assembly (11), a sealing ring (15) and a gland (12). The pagoda-shaped air inlet assembly (11) is movably arranged in the joint shell (13), the gland (12) is fixedly arranged on the upper end of the joint shell (13), and the top part of the pagoda-shaped air inlet assembly (11) extends out of the gland (12). The bottom of the joint shell (13) is inserted with the sensor connecting seat (2) through a rotary clamping mode, the sealing ring (15) is arranged in the joint shell (13) at the bottom of the pagoda-shaped air inlet assembly (11), and the top part of the sensor connecting seat (2) extends into the joint shell (13) and is in contact with the sealing ring (15).

2. An atmospheric data sensor test connection device according to claim 1, characterised in that, A ring-shaped boss is arranged in the joint shell (13), a first ring-shaped groove is arranged at the top of the ring-shaped boss, a first ball assembly is arranged in the first ring-shaped groove, a second ring-shaped groove is arranged on the lower surface of the gland (12), and a second ball assembly is arranged in the second ring-shaped groove; the first ball assembly and the second ball assembly are in rolling contact with the pagoda-shaped air inlet assembly (11).

3. An atmospheric data sensor test connection device according to claim 2, characterised in that, The pagoda-shaped air inlet assembly (11) comprises an air inlet, a connecting column (111) at the top, a sliding column (112) at the middle and a pressing column (113) at the bottom, the connecting column (111), the sliding column (112) and the pressing column (113) are integrally formed, the axes of the three are located on the same straight line, and the air inlet penetrates the centers of the connecting column (111), the sliding column (112) and the pressing column (113) in the axial direction in sequence.

4. The connecting device for testing an air data sensor according to claim 3, wherein The diameter of the sliding column (112) is greater than that of the connecting column (111) and that of the pressing column (113); the connecting column (111) extends out of the gland (12); the pressing column (113) is in contact with the sealing ring (15); the first ball assembly is in contact with the upper edge of the top of the sliding column (112); and the second ball assembly is in contact with the lower edge of the bottom of the sliding column (112).

5. An atmospheric data sensor test connection device as claimed in claim 3, characterised in that, The sensor connecting seat (2) comprises a sensor boss, the sensor boss comprises an inner column and an outer cylinder arranged outside the inner column, a plug-in gap for plugging the joint shell (13) is arranged between the inner column and the outer cylinder, and the inner column extends into the joint shell (13) and is in contact with the sealing ring (15); The inner column and the outer cylinder are fixedly arranged on an air data sensor, and the inner column top is provided with an air inlet channel in communication with the air inlet of the pagoda-shaped air inlet assembly (11).

6. An atmospheric data sensor test connection device according to claim 5, wherein, The side wall bottom of the joint shell (13) is provided with a mounting groove, and an elastic clamping piece (14) is arranged in the mounting groove; a downward spiral groove is arranged on the outer cylinder body, and the elastic clamping piece (14) is matched with the downward spiral groove.

7. An atmospheric data sensor test connection device according to claim 6, characterised in that, The elastic clamping piece (14) comprises a clamping block (141) and a spring (142) connected to the bottom of the clamping block (141), the bottom of the spring (142) is fixed to the bottom of the mounting groove, and the clamping block (141) partially extends out of the mounting groove. The shape of the clamping block (141) is adapted to the shape of the downward spiral groove.

8. An atmospheric data sensor test connection device according to claim 7, characterised in that, A clamping groove is arranged on the side wall of the joint shell (13) and communicates with the bottom end of the downward spiral groove, the clamping groove is vertically arranged and is located higher than the end position of the spiral groove.

9. An atmospheric data sensor test connection device as in claim 7, wherein, The elastic clamping piece (14) further comprises two guide blocks (143) arranged in the mounting groove, and the clamping block (141) is slidingly clamped between the two guide blocks (143).

10. An atmospheric data sensor test connection device as in claim 1, wherein, The gland (12) is fixedly arranged on the upper end of the joint shell (13) through a screw.

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