Air pressure conversion interface

Abstract

The air pressure conversion interface comprises a net tail, a shell assembly and a support which are sequentially connected, the two ends of the support are detachably connected with clamping assemblies respectively, the clamping assemblies are used for enabling the support to be buckled on the shell assembly, a serial port and an air tap are arranged in the shell assembly respectively, and the air tap is connected with the net tail. The net tail is internally communicated with an electric wire and an air inflation pipe, the electric wire is connected with the serial port, the air inflation pipe is connected with the air nozzle, the support is provided with first through holes matched with the serial port and the air nozzle, and the end, protruding out of the support, of the air nozzle is further sleeved with an air nozzle plug. According to the utility model, the electric wire and the inflation tube are integrated in the same connecting line, the connector is used for interface conversion of some special equipment, the overall combination is compact, frequent disassembly and replacement are also facilitated, the whole shell can be made of insulating materials, the clamping components on the two sides are used for buckling, and no extra interpenetrating parts are needed for assembling and fixing.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic connection devices, and particularly relates to a pneumatic conversion interface. Background Art

[0002] For the existing ear detection instruments and their use, when people are detecting, in addition to being powered on to use electric devices such as lights, vibrations, and sounds, they may also, as needed, use an inflatable tube to blow in gas to change the pressure, so as to conduct a series of acoustic impedance tests. In the existing devices, the electric devices can be connected to wires through a uniformly adapted coupler for replacement use, but the inflatable nozzle requires the cooperation of another instrument, so it is difficult to perform synchronous operations. For the same analytical instrument, it is also more troublesome to frequently select different connecting wires and conversion ports. Moreover, referring to most of the existing conversion interfaces, one is an integrated and fully enclosed structure, which is not convenient for adding an inflatable tube and is also not convenient for disassembly and replacement; the other is a detachable structure, but its assembly method is also not convenient for frequent disassembly and maintenance, and the connecting components are easy to break, and can only be further inserted and fixed through additional parts such as screws. Content of the Utility Model

[0003] In order to solve the above problems existing in the prior art, the purpose of the utility model is to provide a pneumatic conversion interface. The utility model integrates an electric wire and an inflatable tube in the same connecting wire for the interface conversion of certain special devices, and the overall combination is compact, and it is also convenient for frequent disassembly and replacement. The entire outer shell can be made of insulating materials and is buckled through the clamping components on both sides, without the need to use additional inserted parts for assembly and fixation.

[0004] A pneumatic conversion interface described in the utility model includes a cable tail, a housing assembly, and a bracket connected in sequence. Clamping components are detachably connected to both ends of the bracket respectively. The clamping components are used to buckle the bracket on the housing assembly. A serial port and an air nozzle are respectively arranged in the housing assembly. An electric wire and an inflatable tube are communicated in the cable tail. The electric wire is connected to the serial port, and the inflatable tube is connected to the air nozzle. First through holes adapted to the serial port and the air nozzle are respectively formed on the bracket, and an air nozzle plug is sleeved on the end of the air nozzle protruding from the bracket.

[0005] In one embodiment, the clamping component includes two buckles rotatably connected to the left and right ends of the bracket. A rotating shaft is arranged in the middle of the buckle, and hook-shaped clamping parts are formed at the front and rear ends of the buckle. A circular boss adapted to the buckle is formed at the front end of the housing assembly close to the bracket, and protruding parts adapted to the two clamping parts of the buckle are arranged on the circular boss.

[0006] In one embodiment, positioning posts extend from the four corners of the bracket towards the housing assembly, and the four positioning posts cooperate to be engaged with the annular boss.

[0007] In one embodiment, two second through holes adapted to the buckle are provided on the bracket, and an extension portion extends outward from one end of the buckle away from the bracket.

[0008] In one embodiment, card slots adapted to the serial port and the air nozzle are respectively formed in the annular boss.

[0009] In one embodiment, the housing assembly includes a front shell and a bottom shell combined up and down. Positioning rods and positioning holes adapted to each other are respectively provided at the four corners inside the front shell and the bottom shell; an annular groove is provided on the cable tail, and a sleeve hole is formed at one end of the housing assembly close to the cable tail. The sleeve hole wraps the end of the cable tail and is adapted to the annular groove.

[0010] In one embodiment, anti-slip patterns are provided on the surfaces of the front shell and the bottom shell.

[0011] Compared with the prior art, the beneficial effects of the technical solution of the present utility model are as follows:

[0012] 1. The present utility model integrates an electric wire and an air charging pipe in the same connecting wire for interface conversion of certain special devices. The overall combination is compact and it is also convenient for frequent disassembly and replacement. The entire housing can be made of insulating materials and is buckled through the clamping components on both sides, without the need to use additional interpenetrating parts for assembly and fixation.

[0013] 2. The buckle of the present utility model is an integrally formed structure. It mainly uses the rotating shafts protruding from the upper and lower sides to cooperate with the through holes on the bracket, so that the buckle can rotate relative to the bracket. The two clamping parts respectively buckle the front and rear raised parts on the annular boss. The thickness of the annular boss is adapted to the buckle, enabling the bracket to closely adhere to the annular boss, and then assembling with the housing assembly. In addition, by pulling the extension portion on the buckle, one of the clamping parts can be disengaged from the raised part, thereby releasing the buckling of the clamping component. The disassembly and assembly are convenient and the wear is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of a pneumatic conversion interface of the present utility model;

[0015] Figure 2 is an exploded view of a pneumatic conversion interface of the present utility model;

[0016] Figure 3 is a cross-sectional view of a pneumatic conversion interface of the present utility model.

[0017] Description of reference numerals: 1 - net tail, 11 - annular groove, 2 - annular boss, 21 - protruding part, 22 - clamping groove, 3 - bracket, 31 - first through hole, 32 - positioning post, 33 - second through hole, 4 - serial port, 5 - air nozzle, 6 - air nozzle plug, 7 - front shell, 8 - bottom shell, 9 - buckle, 91 - rotating shaft, 92 - clamping part, 93 - extending part. Detailed implementation manners

[0018] The accompanying drawings are only for illustrative purposes and should not be construed as a limitation of this patent; for better illustration of this embodiment, some components in the accompanying drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0019] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation" 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 directly connected or indirectly connected through an intermediate medium, and it can be said that the interiors of two components are connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The technical solutions of the present utility model will be further described below with reference to the accompanying drawings and embodiments.

[0020] As Figures 1-3 shown, a pneumatic conversion interface of the present utility model includes a net tail 1, a housing assembly, and a bracket 3 connected in sequence. Clamping assemblies are detachably connected to both ends of the bracket 3, and the clamping assemblies are used to fasten the bracket 3 to the housing assembly. A serial port 4 and an air nozzle 5 are respectively arranged in the housing assembly. A wire and an inflation tube are connected in the net tail 1. The wire is connected to the serial port 4, and the inflation tube is connected to the air nozzle 5. First through holes 31 adapted to the serial port 4 and the air nozzle 5 are respectively formed in the bracket 3 to facilitate the positioning and protruding extension of the serial port 4 and the air nozzle 5. An air nozzle plug 6 is sleeved on the end of the air nozzle 5 protruding from the bracket 3. The present utility model integrates a wire and an inflation tube in the same connecting wire for interface conversion of some special devices, and the overall combination is compact and it is also convenient for frequent disassembly and replacement. The entire housing can be made of insulating materials and is fastened through the clamping assemblies on both sides without using additional interventional parts for assembly and fixation. When the device is in use, the serial port 4 can be stably connected to a common coupler or directly connected to an electric device, and the air nozzle 5 can pull out the air nozzle plug 6 to connect an extension tube or be directly used according to actual needs. They can be respectively connected to an instrument connected to the other end of the net tail 1 through the wire and the inflation tube for unified control, so as to cooperate with the inspection to control the output of air pressure and electrical signals in real time, which is convenient to use. By releasing the fastening of the clamping assemblies, the interior of the housing can be repaired and maintained, as well as dust cleaned daily.

[0021] In one embodiment, in order to further make the snap connection of the snap assembly stable and easy to disassemble and assemble, the snap assembly includes two snaps 9 rotatably connected to the left and right ends of the bracket 3, a rotating shaft 91 is provided in the middle of the snap 9, and hook-shaped snap portions 92 are formed at the front and rear ends of the snap 9. The housing assembly forms an annular boss 2 adapted to the snap 9 near the front end of the bracket 3, and the two snap portions 92 of the snap 9 are provided with matching protrusions 21 on the annular boss 2 corresponding to the two snap portions 92 of the snap 9. The snap 9 is an integrally formed structure, which mainly uses the rotating shaft 91 protruding from the upper and lower sides to cooperate with the through hole on the bracket 3, so that the snap 9 can rotate relative to the bracket 3, and its two snap portions 92 respectively buckle the front and rear protrusions 21 on the annular boss 2, and the thickness of the annular boss 2 is adapted to the snap 9, so that the bracket 3 can be closely attached to the annular boss 2, and then assembled with the housing assembly.

[0022] Furthermore, in order to facilitate the rotational cooperation between the bracket 3 and the buckle 9, and the positioning of the bracket 3 relative to the housing assembly, the four corners of the bracket 3 extend with positioning posts 32 in the direction of the housing assembly, and the four positioning posts 32 cooperate with each other and are used to engage with the annular boss 2. The positioning posts 32 on the bracket 3 ensure the positioning installation between the two relatively flat structures, so that the bracket 3 is not easily offset, and the serial port 4 and the gas nozzle 5 can extend out corresponding to the first through hole 31. The annular boss is also formed with card slots 22 adapted to the serial port 4 and the gas nozzle 5, which further position the installation and extension of the serial port 4 and the gas nozzle 5 to avoid disconnection caused by offset due to external forces.

[0023] In addition, the bracket 3 is provided with two second through holes 33 adapted to the buckle 9, and the buckle 9 is provided with an extension portion 93 extending outward from one end away from the bracket 3. When disassembling, the user pulls the extension portion 93 on the buckle 9 to rotate the buckle 9 along the rotation axis 91 toward the housing assembly, so that the clamping portion 92 in the second through hole 33 is separated from the protruding portion 21 in the gap left by the buckle 9, and then the buckle 9 is rotated in the opposite direction along the rotation axis 91, so that the clamping portion 92 on the side close to the extension portion 93 is also separated from the corresponding protruding portion 21, thereby releasing the buckling state of the clamping assembly, and the opposite steps are performed when installing, so that the device is easy to disassemble and assemble, the assembly is stable, and wear can be effectively reduced.

[0024] In one of the embodiments, the housing assembly includes a front shell 7 and a bottom shell 8 which are combined up and down. At the four corners inside the front shell 7 and the bottom shell 8, there are respectively provided matching positioning rods and positioning holes; an annular groove 11 is provided on the net tail 1. One end of the housing assembly close to the net tail 1 forms a sleeve hole, and the sleeve hole wraps the end of the net tail 1 and is adapted to the annular groove 11. The detachable effect of the housing assembly can also be achieved by the up-and-down combination of the front shell 7 and the bottom shell 8. The positioning of the four sides of the front shell 7 and the bottom shell 8 can be realized by the mutually cooperating protrusions and grooves. For the annular boss 2, it can be evenly divided into upper and lower parts by the front shell 7 and the bottom shell 8, and then cooperate with the buckling of the buckle 9 to stably combine the front shell 7 and the bottom shell 8 up and down. For the connection at the net tail 1, a boss with a trapezoidal cross-section is formed at the end of the net tail 1. Different from a circle, it is less likely to be separated from the housing assembly and prevent the relatively flat housing assembly from rotating. Then an annular groove 11 is formed behind the boss. The sleeve hole formed by the end of the front shell 7 and the bottom shell 8 after being assembled by the cooperation of the positioning rods, positioning holes and the buckle 9 can be sleeved on the annular groove 11. In addition, anti-slip patterns are provided on the surfaces of the front shell 7 and the bottom shell 8 to facilitate gripping the interface during use and being less likely to slip off when being assembled and disassembled due to the force applied.

[0025] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "horizontal, vertical, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus cannot be understood as a limitation on the protection scope of the present application.

[0026] In the figure, the description of the positional relationship is only for illustrative purposes and cannot be understood as a limitation on the patent; obviously, the above-mentioned embodiments of the present invention are only examples for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A gas pressure conversion interface, comprising a net tail (1), a housing component and a bracket (3) connected in sequence, characterized in that: The two ends of the bracket (3) are detachably connected with snap-on assemblies, and the snap-on assemblies are used to snap the bracket (3) onto the shell assembly. The shell assembly is provided with a serial port (4) and an air nozzle (5). The net tail (1) is connected with an electric wire and an air filling tube. The electric wire is connected to the serial port (4), and the air filling tube is connected to the air nozzle (5). The bracket (3) is provided with a first through hole (31) adapted to the serial port (4) and the air nozzle (5), and the end of the air nozzle (5) protruding from the bracket (3) is also sleeved with an air nozzle plug (6).

2. The air pressure conversion interface according to claim 1, characterized in that: The snap-on assembly comprises two snaps (9) rotatably connected to the left and right ends of the bracket (3); a rotating shaft (91) is provided in the middle of the snaps (9); hook-shaped snap-on portions (92) are formed at the front and rear ends of the snaps (9); an annular boss (2) matched with the snaps (9) is formed at the front end of the housing assembly close to the bracket (3); and matching protrusions (21) are provided on the annular boss (2) corresponding to the two snap-on portions (92) of the snaps (9).

3. A gas pressure conversion interface according to claim 2, characterized in that: Positioning columns (32) are extended at four corners of the bracket (3) in the direction of the housing component, and the four positioning columns (32) cooperate with each other and are used to be clamped with the annular boss (2).

4. A gas pressure conversion interface according to claim 3, characterized in that: The bracket (3) is provided with two second through holes (33) adapted to the buckle (9), and an extension portion (93) is provided on one end of the buckle (9) away from the bracket (3) and extending outward.

5. A gas pressure conversion interface according to claim 4, characterized in that: The annular boss has slots (22) formed therein that are compatible with the serial port (4) and the gas nozzle (5).

6. A gas pressure conversion interface according to claim 5, characterized in that: The outer shell component comprises an upper and lower combined surface shell (7) and a bottom shell (8), wherein four corners inside the surface shell (7) and the bottom shell (8) are respectively provided with matching positioning rods and positioning holes; an annular groove (11) is provided on the net tail (1), and a sleeve hole is formed at one end of the outer shell component close to the net tail (1), wherein the sleeve hole wraps around the end of the net tail (1) and matches with the annular groove (11).

7. A gas pressure conversion interface according to claim 6, characterized in that: The surfaces of the surface shell (7) and the bottom shell (8) are both provided with anti-slip grooves.

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