CN219712674U - Multi-channel gas circuit rapid plug-pull centralized sealing device - Google Patents

Abstract

The utility model discloses a multi-channel gas circuit rapid plug-pull centralized sealing device, which comprises a fixed end guide block, wherein a plurality of first gas circuit channels are arranged in parallel, a fixed end gas source connector is arranged, the fixed end gas source connector is inserted into the first gas circuit channels from above, and a detachable end sealing block is detected to the lower side through the end heads of the first gas circuit channels; the sealing plate is clamped between the fixed end guide block and the detachable end sealing block, and is provided with a plurality of through holes which are parallel and correspond to the first air passage above, and the through holes are used for the bottom of the fixed end air source connector to pass through; the detachable end sealing block is provided with a plurality of second air passage channels which are parallel and correspond to the upper sealing plate through holes; the bottom end of the fixed end air source connector is inserted into the upper section of the second air channel of the detachable end sealing block, and the detachable end connector is inserted into the second air channel from the lower part and communicated with the fixed end air source connector through the second air channel. The utility model is insensitive to axial installation distance and can realize quick installation and separation of the air passage seal.

Description

A multi-channel air path quick plug-in centralized sealing device

Technical field

The utility model belongs to the technical field of gas pressure measurement, and in particular relates to a multi-channel gas path quick plug-in centralized sealing device.

Background technique

The measurement of gas pressure and wind pressure of air and other gases is an indispensable part of many modern industrial productions and lives. Gas pressure is a physical quantity that cannot be directly measured and can only be measured through certain characteristic values of substances. Measurements are thus obtained indirectly. When obtaining this physical quantity, it is necessary to avoid the impact of leakage during the collection process on the measurement results, so the drainage seal after the gas source is collected is particularly important. For fixed end face seals, end face static seals such as end face combination seals and O-rings are currently used form.

However, due to the application fields and actual measurement requirements, in many cases, it is necessary to achieve rapid sealing of multiple gas paths and multiple channels. The use of traditional end face seals is time-consuming and laborious, and the end face seal is extremely sensitive to the gap requirements between the two parts at the seal (0 gap), if there is a gap on the sealing end face, there is a possibility of air leakage, causing the measured value to deviate from the actual value, resulting in measurement errors. When the air pressure is high, the measuring mechanism has a long structure and is a thin-walled part, pressure often occurs. Deformation or deformation caused by its own deflection leads to gaps on the joint end face and unreliable sealing.

Utility model content

In order to overcome the shortcomings of the existing technical methods, the purpose of this utility model is to propose a multi-channel air path quick plug-in centralized sealing device that is not sensitive to the axial installation distance and can realize rapid installation and separation of the air path seal.

In order to achieve the above purpose, the technical solution adopted by this utility model is: a multi-channel air path quick plug-in centralized sealing device, including:

The fixed-end guide block has a plurality of first air channels arranged side by side inside. The first air channel is used to install the fixed-end air source connector. The fixed-end air source connector is inserted into the first air channel from above, and passes through the first air channel. The removable end sealing block at the end of the gas channel is probed downward;

The sealing plate is sandwiched between the fixed end guide block and the detachable end sealing block, and is provided with a plurality of parallel through holes corresponding to the first air path channel above, and the through holes are used for the fixed end air source to connect Pass through the bottom of the mouth;

and a detachable end sealing block, which is arranged below the fixed end guide block and the sealing plate, and is provided with a plurality of parallel second air passages corresponding to the through holes of the upper sealing plate; the bottom of the fixed end air source nozzle The end is inserted into the upper section of the second air path channel of the detachable end sealing block, the detachable end connection nozzle is inserted into the second air path channel from below, and the fixed end air source connection nozzle is connected through the second air path channel.

Further, the fixed-end air source joint includes a measuring-end air source joint, a guide section, a connecting section, an internal sealing section and a joint ball. The measuring-end air source joint, guide section, connecting section The segments, the internal sealing joint section and the joint ball are connected in sequence;

The measuring end air source nozzle is placed above and outside the fixed end guide block, the guide section is inserted into the upper section of the first air channel, the connecting section is connected to the lower end section of the first air channel, and the internal sealing nozzle The section passes through the sealing plate and penetrates into the upper section of the second air path channel.

Furthermore, internal threads are provided on at least part of the inner wall of the air passage, which cooperate with the external thread connection section provided in the connection section of the fixed-end air source nozzle.

Furthermore, at least part of the air passage is a guide counterbore, and the guide counterbore cooperates with the cylindrical guide section used in the fixed-end air source connector.

Further, a fixed-end anti-loosening gasket is provided at the top of the first air passage.

Furthermore, a radial sealing ring is also provided, and the radial sealing ring is packaged at the top entrance of the second air path channel of the detachable end sealing block.

Further, a cavity containing the radial sealing ring is provided at the radial sealing ring packaging location for the radial sealing ring to move axially.

Further, a V-shaped guide opening is provided on the end surface of the through hole of the sealing plate, and the opening is rounded.

Further, a round hole with a diameter larger than the outer diameter of the pipe wall of the part where the fixed-end air source nozzle extends into is provided at the lower end of the V-shaped guide opening, and the diameter of the round hole is smaller than the radial sealing ring.

Further, an end seal is provided at the bottom of the second air passage.

Beneficial effects of adopting this technical solution:

The utility model adopts the form of radial sealing and connects the fixed-end air source nozzle and the detachable end-connection nozzle by setting a fixed-end guide block, a sealing sealing plate and a detachable end sealing block, effectively avoiding the problem caused by the axial gap. The possibility of leakage ensures the accuracy of detection data.

When the utility model adopts radial sealing, the position accuracy during axial insertion and the risk of scratching the seal during insertion need to be considered. The joint of the present invention adopts thread fixation, cylindrical end guide limiter, spherical end surface to prevent scratches, The sealing plate is introduced with a V-shaped opening and a small hole to prevent the sealing ring from coming out and also serves as a retaining ring.

Description of drawings

Figure 1 is a schematic structural diagram of a multi-channel air path quick plug-in centralized sealing device of the present invention;

Figure 2 is a schematic structural diagram of the fixed-end air source connector in the embodiment of the present utility model;

Figure 3 is a partial schematic diagram of the through hole of the sealing plate in the embodiment of the present invention;

Among them, 1 is the fixed end guide block, 2 is the fixed end air source connector, 3 is the fixed end anti-loosening gasket, 4 is the sealing plate, 5 is the removable end sealing block, 6 is the removable end connector, 7 It is the radial sealing ring, 8 is the end seal; 21 is the measuring end air source joint, 22 is the guide section, 23 is the connecting section, 24 is the internal sealing joint section, 25 is the joint ball; 41 is the V-shaped Guide opening 42 is a round hole.

Detailed ways

In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further elaborated below with reference to the accompanying drawings.

In this embodiment, as shown in Figure 1, a multi-channel air path quick-plug centralized sealing device includes:

The fixed-end guide block 1 has multiple first air channels arranged side by side inside. The first air channel is used to install the fixed-end air source connector 2. The fixed-end air source connector 2 is inserted into the first air channel from above. The removable end sealing block 5 is probed downward through the end of the first gas channel;

The sealing plate 4 is sandwiched between the fixed end guide block 1 and the detachable end sealing block 5, and is provided with a plurality of parallel through holes corresponding to the first air path channel above, and the through holes are used for the fixed end. Pass through the bottom of air source connector 2;

And the detachable end sealing block 5 is arranged below the fixed end guide block 1 and the sealing plate 4, and is provided with a plurality of parallel second air passages corresponding to the through holes of the upper sealing plate 4; the fixed end gas The bottom end of the source connector 2 is inserted into the upper section of the second air path channel of the detachable end sealing block 5. The detachable end connector 6 is inserted into the second air channel from below, and is connected to the fixed end air source connector 2 through the second air channel. .

As an optimization solution of the above embodiment, as shown in Figure 2, the fixed-end air source nozzle 2 includes a measuring end air source nozzle 21, a guide section 22, a connecting section 23, an internal sealing section 24 and a nozzle. Sphere 25, the measuring end air source nozzle 21, guide section 22, connecting section 23, internal sealing nozzle section 24 and nozzle ball 25 are connected in sequence;

The measuring end air source connector 21 is placed above and outside the fixed end guide block 1, the guide section 22 is inserted into the upper section of the first air channel, the connecting section 23 is connected to the lower end section of the first air channel, and the inner The sealing mouth section 24 penetrates the sealing plate 4 and penetrates into the upper section of the second air path.

Preferably, at least part of the inner wall of the air passage is provided with internal threads, which cooperate with the external thread connection section provided in the connection section 23 of the fixed-end air source nozzle 2 . The thread plays the role of fixing the air source connector.

Preferably, at least part of the air passage is a guide counterbore, and the guide counterbore cooperates with the cylindrical guide section used in the fixed-end air source joint 2 to ensure that the guide counterbore and the guide cylindrical section of the air source joint are small. Clearance fit.

By arranging multiple air channels in the fixed-end guide block 1 and installing the fixed-end air source nozzle 2, the installation positioning accuracy of each channel is ensured, and the internal sealing part of the air source nozzle can be vertically inserted downwards. Remove the end seal assembly. The fixed-end air source connector 2 adopts a ball head design, which can effectively prevent the sealing ring from being scratched when the connector is inserted into the sealing component.

Preferably, a fixed-end anti-loosening gasket 3 is provided at the top of the first air channel, so that the fixed-end air source connector 2 is fixedly and sealingly connected to the top of the first air channel.

As an optimization solution of the above embodiment, a radial sealing ring 7 is also provided, and the radial sealing ring 7 is packaged at the top entrance of the second air path channel of the detachable end sealing block 5 .

Preferably, as shown in Figure 3, a cavity containing the radial sealing ring 7 is provided at the packaging location of the radial sealing ring 7 for axial movement of the radial sealing ring 7. Within the design value range, the movement of the sealing ring or the change in the insertion depth of the fixed-end air source connector 2 will not affect the sealing performance, reduce the sensitivity to the axial installation distance, and achieve the expected effect.

As an optimization solution of the above embodiment, as shown in Figure 3, in order to facilitate the smooth insertion of the internal sealing joint section 24 of the fixed-end air source joint 2 into the sealing device, the end surface of the through hole of the sealing sealing plate 4 is set to V The guide opening 41 has a rounded corner, so that the internal sealing section 24 of the fixed-end air source connection nozzle 2 can be introduced smoothly without causing damage.

A round hole 42 is provided at the lower end of the V-shaped guide port 41 with a diameter larger than the outer diameter of the part of the pipe wall where the fixed end air source connector 2 extends into, and the diameter of the round hole 42 is smaller than the radial sealing ring 7. The size of the round hole 42 It ensures that the internal sealing tube can be inserted smoothly and also acts as a retaining ring. When the measurement is completed and needs to be pulled out, it can ensure that the sealing ring is not taken out.

As an optimization solution of the above embodiment, an end seal 8 is provided at the bottom of the second air channel, so that the detachable terminal nozzle 6 is fixedly and sealingly connected to the bottom of the second air channel.

In order to better understand the utility model, the following is a complete description of the working principle of the utility model:

The fixed end guide block 1 is used to install the fixed end air source connector 2. In the fixed end guide block 1, each air channel is processed with a set of threads and guide counterbore. The threads play the role of fixing the air source joint. The guide counterbore and the guide cylindrical section of the air source joint adopt a small gap to ensure that It ensures the installation positioning accuracy of each channel and ensures that the internal sealing part of the air source joint can be vertically inserted into the detachable end seal assembly. At the same time, the sealing plate 4 and the detachable end sealing block 5 are provided to connect and seal the fixed end air source nozzle 2 and the detachable end connection nozzle 6, effectively avoiding the possibility of leakage due to axial clearance. It has been verified by tests No leakage occurs at gas pressures of 6MPa and below, ensuring the accuracy of detection data.

The basic principles, main features and advantages of the present utility model are shown and described above. Those skilled in the industry should understand that the present utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model can be There will also be various changes and improvements in the new model, and these changes and improvements all fall within the scope of the claimed utility model. The protection scope of the present utility model is defined by the appended claims and their equivalents.

Claims (10)

1. The utility model provides a multichannel gas circuit pulls out plug centralized sealing device fast which characterized in that includes:

the fixed end guide block (1) is internally provided with a plurality of first air passage channels in parallel, the first air passage channels are used for installing fixed end air source connectors (2), the fixed end air source connectors (2) are inserted into the first air passage channels from the upper part, and the detachable end sealing blocks (5) which are downwards detected through the ends of the first air passage channels;

the sealing plate (4) is clamped between the fixed end guide block (1) and the detachable end sealing block (5), and is provided with a plurality of through holes which are parallel and correspond to the first air passage above, and the through holes are used for the bottom of the fixed end air source connector (2) to pass through;

the detachable end sealing block (5) is arranged below the fixed end guide block (1) and the sealing plate (4), and a plurality of second air passage channels which are parallel and correspond to the through holes of the upper sealing plate (4) are arranged; the bottom end of the fixed end air source connector (2) is inserted into the upper section of a second air channel of the detachable end sealing block (5), and the detachable end connector (6) is inserted into the second air channel from the lower part and communicated with the fixed end air source connector (2) through the second air channel.

2. The multi-channel gas circuit rapid plugging and centralizing sealing device according to claim 1, wherein the fixed end gas source connector (2) comprises a measuring end gas source connector (21), a guiding section (22), a connecting section (23), an internal sealing position connector section (24) and a connector sphere (25), and the measuring end gas source connector (21), the guiding section (22), the connecting section (23), the internal sealing position connector section (24) and the connector sphere (25) are sequentially connected;

the measuring end air source connector (21) is arranged outside the upper part of the fixed end guide block (1), the guide section (22) is inserted into the upper section of the first air path channel, the connecting section (23) is connected with the lower end section of the first air path channel, and the inner sealing part connector section (24) penetrates through the sealing plate (4) to be detected into the upper section of the second air path channel.

3. The multi-channel gas circuit rapid plugging and concentrating sealing device according to claim 2, wherein at least part of the inner wall of the gas circuit channel is provided with internal threads which are matched with external thread connecting sections arranged on the connecting section (23) of the fixed end gas source connector (2).

4. The multi-channel gas circuit rapid plugging and concentrating sealing device according to claim 2, wherein at least part of the gas circuit channel is a guiding counter bore which is matched with a cylindrical guiding section adopted by the fixed end gas source connector (2).

5. A multi-channel gas path quick plugging and concentrating sealing device according to any one of claims 1-4, characterized in that a fixed end anti-loose gasket (3) is arranged at the top of the first gas path channel.

6. The multi-channel gas circuit rapid plugging and concentrating sealing device according to claim 1, further comprising a radial sealing ring (7), wherein the radial sealing ring (7) is sealed at the top inlet of the second gas circuit channel of the detachable end sealing block (5).

7. The multi-channel gas circuit rapid plugging and concentrating sealing device according to claim 6, wherein a cavity for containing the radial sealing ring (7) is arranged at the packaging position of the radial sealing ring (7) for the axial movement of the radial sealing ring (7).

8. The multi-channel gas circuit rapid plugging and concentrating sealing device according to claim 6, wherein the end face of the through hole of the sealing closing plate (4) is provided with a V-shaped guiding opening (41), and the opening is rounded.

9. The multi-channel gas circuit rapid plugging and concentrating sealing device according to claim 8, wherein a round hole (42) with a diameter larger than the outer diameter of a part of the pipe wall of the fixed end gas source connector (2) extending into the lower end of the V-shaped guide opening (41) is arranged, and the diameter of the round hole (42) is smaller than that of the radial sealing ring (7).

10. A multi-channel gas path quick plug and socket integrated sealing device according to claim 1, characterized in that an end face sealing gasket (8) is arranged at the bottom of the second gas path channel.