Intelligent precise gas flow controller

Abstract

The invention relates to the technical field of controllers, in particular to an intelligent precise gas flow controller which comprises a controller body, a conveying pipe and a bearing pipe fitting. Wherein external thread connectors are symmetrically arranged at the two ends of the adapting pipe fitting, the external thread connectors are in adaptive threaded connection with threaded connection caps, stable connection is achieved through an arranged auxiliary mechanism, and a regulation and control assembly is arranged in the middle of the adapting pipe fitting so that the connection stability of the adapting pipe fitting can be further improved, and therefore the gas conveying sealing performance of the adapting pipe fitting can be improved. The fastening assembly is used for locking, so that the threaded connection between the threaded connection cap and the external threaded connector is prevented from loosening, and the stability of gas measurement work is ensured; if air leakage occurs in the connection between the air inlet pipe opening and the conveying pipe or between the air outlet pipe opening and the conveying pipe, whether air leakage occurs in the connection position between the air inlet pipe opening and the conveying pipe or between the air outlet pipe opening and the conveying pipe or not can be known in time through detection of the air leakage detector.

Description

Technical Field

[0001] The present invention relates to the technical field of controllers, and in particular to an intelligent precision gas flow controller. Background Art

[0002] The existing Chinese authorized patent document with the announcement number CN112000138A discloses a gas mass flow controller, wherein the scheme

[0037] and the attached Figure 3 It is recorded that "the channel structure includes an air inlet channel 615a, a detection channel 615b, a diversion channel 615c and an air outlet channel 615d which are connected in series along the gas flow direction, wherein the thermal flow sensor 612 is connected to the diversion channel 615c. When the gas flows through the diversion channel 615c, most of the gas flows through the diversion channel 615c, and a small amount of gas passes through the capillary of the thermal flow sensor 612, so that the thermal flow sensor 612 can detect and obtain an electrical signal related to the gas flow, and send it to the control module 63"; however, when controlling the gas flow, the sealing of the connection between the air inlet and the air outlet of the controller is also very important.

[0003] Especially when precise control of gas flow is required, it is necessary to ensure that the gas passing through the controller does not leak, otherwise it will affect the controller's control of the gas flow. The existing air inlet and outlet are generally connected and fixed to the gas pipe through corresponding threaded connection caps. On the one hand, the stability of the connection needs to be improved; on the other hand, when a leakage problem occurs at the air inlet or outlet, the gas delivery work is generally stopped in time, and then the connector needs to be disassembled and replaced or retightened. In this process, when the connection between the delivery pipe and the air inlet or outlet is released, the gas therein will overflow. When some gases are toxic or otherwise hazardous, it will also pose a threat to the personal safety of the operator.

[0004] To this end, the present invention proposes an intelligent precision gas flow controller to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an intelligent precision gas flow controller to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an intelligent precision gas flow controller, comprising a controller body, a delivery pipe, and a receiving pipe fitting; an air inlet port is provided on one side of the bottom of the controller body, and an air outlet port is provided on the other side thereof; both the air outlet port and the air inlet port are provided with threaded connection caps; and a threaded connection cap is provided at one end of the delivery pipe;

[0007] External threaded connectors are symmetrically provided at both ends of the receiving pipe, and the external threaded connectors are threadedly connected to the threaded connection caps and stably connected through the auxiliary mechanism. A regulating component is provided in the middle of the receiving pipe.

[0008] Preferably, the auxiliary mechanism includes an annular cavity, a receiving groove body, a gas guide tube body, an annular connecting pipe, a gas leakage detector, an annular hanging groove body and a fastening assembly; the annular cavity is arranged on the outer side wall of the external threaded connector, the receiving groove body is equidistantly arranged on the outer side wall of the external threaded connector, and one end of the receiving groove body is connected to the annular cavity, and the gas guide tube body is embedded in the receiving groove body.

[0009] Preferably, the accommodating grooves are equidistantly arranged in a ring shape on the outer side wall of the external threaded connector, and the accommodating grooves are arranged in a strip shape, and one gas guide tube is arranged in one accommodating groove.

[0010] Preferably, one end of the gas guide tube body is fixedly arranged on the inner side of the annular connecting tube, and the two are connected. A gas leak detector is provided on the top of the annular connecting tube, and annular hanging grooves are equidistantly provided on the outer wall of the annular connecting tube.

[0011] Preferably, the fastening assembly includes a connecting strip, an auxiliary card plate, a movable insertion cavity, a locking card, a round handle, an auxiliary spring, a connecting pull strip, a placement groove, a connecting hook and a clamping structure; one end of the connecting strip is fixedly provided with an auxiliary card plate, and the other end of the connecting strip is provided with a movable insertion cavity, and a locking card is movably inserted in the connecting strip, one end of the locking card extends into the movable insertion cavity, and the other end of the locking card extends to the outside of the connecting strip, and a round handle is fixedly provided at the end, and the round handle is fixedly provided with an auxiliary spring on the side connected to the locking card, and the other end of the auxiliary spring is fixedly provided on the connecting strip.

[0012] Preferably, the connecting strip is adapted to be plugged into the movable inserting cavity, and a connecting hook is fixedly provided on one end of the connecting strip, and the connecting hook is adapted to be plugged into the annular hanging groove body.

[0013] Preferably, a placement groove is provided on the connecting pull bar, and a clamping structure is provided in the placement groove.

[0014] Preferably, the clamping structure includes a clamping block, an auxiliary inclined surface and a clamping auxiliary convex strip; the clamping block is fixedly arranged in the placement groove at equal intervals, and an auxiliary inclined surface is provided on one side of the clamping block, and clamping auxiliary convex strips are fixedly arranged at equal intervals on the auxiliary inclined surface, and the end cross-sectional shape of the clamping auxiliary convex strip is set to be tooth-shaped.

[0015] Preferably, the regulating component includes a connecting sphere, an extending convex body, a sealed bearing, a connecting plug shaft, a regulating circular plate, an auxiliary handle bar and a positioning structure; the connecting sphere is arranged in the middle position of the receiving tube, and the connecting sphere is provided with a spherical inner cavity, the spherical inner cavity is connected to the receiving tube, the top of the connecting sphere is provided with an extending convex body, and a sealed bearing is embedded in the extending convex body, and a connecting plug shaft is inserted in the sealed bearing, one end of the connecting plug shaft extends into the spherical inner cavity in the connecting sphere, and the end of the connecting plug shaft is fixedly connected to the regulating circular plate, the other end of the connecting plug shaft is fixedly connected to the auxiliary handle bar, and the side wall of the regulating circular plate is in adaptive fit contact with the inner wall of the spherical inner cavity.

[0016] Preferably, the positioning structure includes a connecting column head, a cylindrical through groove, a positioning column, an auxiliary handle head and a positioning slot; the connecting column head is fixedly arranged at one end of the auxiliary handle bar, and a cylindrical through groove is provided in the connecting column head, the cylindrical through groove is adapted to be plugged into the positioning column, one end of the positioning column is fixedly provided with an auxiliary handle head, the positioning slot is provided on the top surface of the extended protrusion, and the positioning slots are equidistantly arranged in a ring shape, and one end of the positioning column is adapted to be plugged into the positioning slot.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The gas flow controller designed by the present invention includes a controller body, a delivery pipe and a receiving pipe fitting; an air inlet is provided on one side of the bottom of the controller body, and an air outlet is provided on the other side thereof; threaded connection caps are provided at the pipe openings of both the air outlet and the air inlet, and a threaded connection cap is provided at the pipe opening of one end of the delivery pipe; external threaded connectors are symmetrically provided at both ends of the receiving pipe fitting, the external threaded connector and the threaded connection cap are adapted for threaded connection, and are stably connected by an auxiliary mechanism; a regulating component is provided at the middle position of the receiving pipe fitting, wherein in order to further improve the stability of its connection and thus improve its gas delivery sealing, when the threaded connection cap and the external threaded connector are screwed together, After the threaded connection, it is locked by the set fastening assembly to prevent the threaded connection between the threaded connection cap and the external threaded connection head from loosening, thereby ensuring the stability of the gas measurement work; when the gas flow is controlled by the controller body, if there is a leakage problem in the connection between the air inlet pipe and the delivery pipe or the air outlet pipe and the delivery pipe, when the leakage occurs from the connection gap between the threaded connection cap and the external threaded connection head, part of the leaked gas will be collected from the annular cavity groove on the external threaded connection head, and enter the annular connection pipe from the gas guide pipe body. Finally, it is detected by the leak detector, so that it can be known in time whether there is a leakage at the connection position between the air inlet pipe and the delivery pipe or the air outlet pipe and the delivery pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the left side of the explosion of the gas flow controller structure of the present invention;

[0020] Figure 2 for Figure 1 A magnified schematic diagram of the structural connection at center A;

[0021] Figure 3 This is a schematic diagram of the right side of the explosion of the gas flow controller structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the auxiliary mechanism structure connection of the present invention;

[0023] Figure 5 for Figure 4 A magnified schematic diagram of the structural connection at point B in the middle;

[0024] Figure 6 This is a schematic diagram of the exploded right side of the fastening assembly structure connection of the present invention;

[0025] Figure 7 This is a schematic diagram of the exploded left side of the fastening assembly structure connection of the present invention;

[0026] Figure 8 A schematic plan view of the connection of the connecting rod structure in the fastening assembly of the present invention;

[0027] Figure 9 for Figure 8 A magnified schematic diagram of the structural connection at point C in the middle;

[0028] Figure 10 It is a schematic diagram of the connection between the regulating component and the receiving pipe structure of the present invention.

[0029] Figure: controller body 1, air inlet pipe 11, threaded connection cap 12, air outlet pipe 13, delivery pipe 2, receiving pipe 3, external thread connector 31, annular cavity 401, receiving tank body 402, gas flow guide pipe body 403, annular connecting pipe 404, gas leak detector 405, annular hanging tank body 406, connecting strip 501, auxiliary card plate 502, movable insertion cavity 503, locking card 504, round cake handle 505, auxiliary Auxiliary spring 506, connecting pull strip 507, placement groove 508, connecting hook 509, clamping block 601, auxiliary inclined surface 602, clamping auxiliary convex strip 603, connecting sphere 701, extension convex body 702, sealed bearing 703, connecting plug shaft 704, regulating circular plate 705, auxiliary handle strip 706, connecting column head 801, cylindrical through groove 802, positioning column 803, auxiliary handle head 804, positioning slot 805. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention are described clearly and completely below. The embodiments of the present invention and all other embodiments obtained by persons of ordinary skill in the art without creative work are within the scope of protection of the present invention.

[0031] Example 1: Please refer to Figures 1-10 , an intelligent precision gas flow controller, comprising a controller body 1, a delivery pipe 2 and a receiving pipe fitting 3; an air inlet pipe port 11 is provided on one side of the bottom of the controller body 1, and an air outlet pipe port 13 is provided on the other side thereof; both the air outlet pipe port 13 and the air inlet pipe port 11 are provided with threaded connection caps 12, and a threaded connection cap 12 is provided at the pipe port position of one end of the delivery pipe 2; wherein external threaded connectors 31 are symmetrically provided at both ends of the receiving pipe fitting 3, the external threaded connector 31 is adapted to be threadedly connected with the threaded connection cap 12, and a stable connection is performed through an auxiliary mechanism provided, and a regulating component is provided at the middle position of the receiving pipe fitting 3.

[0032] In this solution, the receiving pipe fitting 3 is provided as a transition pipe connecting the air inlet pipe port 11 and the delivery pipe 2, and the air outlet pipe port 13 and the delivery pipe 2, that is, the air inlet pipe port 11 is first docked with the external threaded connector 31 at one end of the receiving pipe fitting 3, and is fixed by the threaded connection of the threaded connection cap 12 and the external threaded connector 31. Then, for the installation and connection of the delivery pipe 2, the delivery pipe 2 is threadedly connected to the external threaded connector 31 at the other end of the receiving pipe fitting 3, and then the auxiliary mechanism provided in this solution is used to stabilize the connection between the air inlet pipe port 11, the air outlet pipe port 13 and the delivery pipe 2, thereby improving the sealing of the gas delivery work, and thus having a positive effect on improving the precision of its flow measurement.

[0033] In order to further improve the connection stability and thus improve the gas transmission sealing, after the threaded connection cap 12 is threadedly connected to the external threaded connection head 31, it is locked by the provided fastening assembly to prevent the threaded connection between the threaded connection cap 12 and the external threaded connection head 31 from loosening, that is, first insert the connecting strip 507 into the movable insertion cavity 503 of the connecting strip body 501, and when it is inserted to a certain position, the connecting hook 509 at one end of the connecting strip 507 is clamped in the annular hanging groove body 406 at the corresponding position on the annular connecting pipe 404. At the same time, the auxiliary clamping plate 502 provided at the end of the connecting strip body 501 will be at the end position of the threaded connection cap 12 away from the annular connecting pipe 404, and is not necessarily at the same position as the threaded connection cap 12. The end of the cap 12 is in contact. At this time, the staff needs to continue pushing the connecting strip 507 into the movable insertion cavity 503 of the connecting strip body 501 until the auxiliary clamping plate 502 contacts and squeezes the end of the threaded connecting cap 12 away from the annular connecting tube 404. That is, this scheme provides a tightening effect on the threaded connecting cap 12 by using the connecting strip body 501 in conjunction with the connecting strip 507; that is, the auxiliary mechanism includes an annular cavity 401, a receiving groove body 402, a gas guide tube body 403, an annular connecting tube 404, a gas leakage detector 405, an annular hanging groove body 406 and a fastening assembly; the annular cavity 401 is arranged on the outer side wall of the external threaded connector 31, and the receiving groove body 402 is equidistantly arranged on the external threaded connector 31, and one end of the accommodating groove body 402 is connected to the annular cavity groove 401, and the gas guide tube body 403 is embedded in the accommodating groove body 402; the accommodating groove body 402 is equidistantly arranged in an annular shape on the outer wall of the external threaded connector 31, and the accommodating groove body 402 is arranged in a strip shape, and a gas guide tube body 403 is arranged in one accommodating groove body 402; one end of the gas guide tube body 403 is fixedly arranged on the inner side of the annular connecting pipe 404, and the two are connected. A gas leak detector 405 is provided on the top of the annular connecting pipe 404, and an annular hanging groove body 406 is equidistantly provided on the outer wall of the annular connecting pipe 404; the fastening assembly includes a connecting strip body 501, an auxiliary card plate 502, a movable insertion cavity 503, a lock Tightening card 504, round cake handle 505, auxiliary spring 506, connecting pull bar 507, placement groove 508, connecting hook 509 and clamping structure; one end of the connecting strip body 501 is fixedly provided with an auxiliary card plate 502, and the other end of the connecting strip body 501 is provided with a movable insertion cavity 503, a locking card 504 is movably inserted in the connecting strip body 501, one end of the locking card 504 extends into the movable insertion cavity 503, the other end of the locking card 504 extends to the outside of the connecting strip body 501, and a round cake handle 505 is fixedly provided at the end, the round cake handle 505 is fixedly provided with an auxiliary spring 506 on the side connected to the locking card 504, and the other end of the auxiliary spring 506 is fixedly provided on the connecting strip body 501;The connecting strip 507 is adapted to be plugged into the movable insertion cavity 503, and a connecting hook 509 is fixedly provided at one end of the connecting strip 507, and the connecting hook 509 is adapted to be snap-fitted into the annular hanging groove 406.

[0034] When the connecting strip 507 is used in conjunction with the connecting strip body 501, this solution can set the number of groups of connecting strips 507 and connecting strip bodies 501 according to actual needs. The connecting hook 509 set at one end of the connecting strip 507 is hung and used in conjunction with the annular hanging groove body 406 on the outer wall of the annular connecting tube 404, and the annular hanging groove body 406 is set at equal intervals on the annular connecting tube 404, that is, multiple groups are set. On the one hand, the position of the connecting strip 507 and the connecting strip body 501 used in conjunction can be adjusted according to actual needs. On the other hand, multiple groups can also be set, which has better working flexibility.

[0035] The present invention locks the position of the connecting strip 507 by cooperating with the locking card 504 and the clamping structure, that is, the connecting strip 507 is provided with a placement groove 508, and the placement groove 508 is provided with a clamping structure; the clamping structure includes a clamping block 601, an auxiliary inclined surface 602 and a clamping auxiliary ridge 603; the clamping block 601 is fixedly arranged in the placement groove 508 at equal intervals, and an auxiliary inclined surface 602 is provided on one side of the clamping block 601, and a clamping auxiliary ridge 603 is fixedly arranged at equal intervals on the auxiliary inclined surface 602, and the end cross-section shape of the clamping auxiliary ridge 603 is set to a tooth shape; wherein for the installation of the locking card 504, it is movably inserted into the connecting strip body 501, The locking card 504 can move up and down under the action of the auxiliary spring 506. The initial state of the locking card 504 after installation is that one end of the locking card 504 extends into the movable insertion cavity 503; when the connecting strip 507 is inserted into the movable insertion cavity 503, when the clamping block 601 reaches the clamping head position of the locking card 504, the auxiliary inclined surface 602 set on the side of the clamping block 601 has a squeezing effect on the clamping head of the locking card 504, that is, the clamping head of the locking card 504 is pushed up to avoid affecting the insertion of the connecting strip 507. After the threaded connection cap 12 is tightened, the locking card 504 will be blocked by the clamping block 601, thereby realizing the rapid positioning of the connecting strip 507.

[0036] When the screw cap 12 is tightened, the locking card 504 may stay on the auxiliary inclined surface 602. The present invention also provides auxiliary clamping ridges 603 at equal intervals on the auxiliary inclined surface 602 to clamp the locking card 504, thereby preventing the locking card 504 from not being able to clamp the screw cap 12 well after the screw cap 12 is tightened by the cooperation of the connecting strip 507 and the connecting strip body 501. It is also very convenient when disassembly is needed in the later stage, that is, first pull the locking card 504 through the round cake handle 505 to release the clamping effect of the locking card 504 on the connecting strip 507, and then pull the connecting strip 507 out of the movable insertion cavity 503 of the connecting strip body 501 to release the tightening lock of the screw cap 12.

[0037] When the gas flow is controlled by the controller body 1, if there is a leakage problem in the connection between the air inlet pipe port 11 and the delivery pipe 2 or the air outlet pipe port 13 and the delivery pipe 2, when the leakage occurs from the connection gap between the threaded connection cap 12 and the external threaded connector 31, part of the leaked gas will be collected from the annular cavity 401 on the external threaded connector 31, and enter the annular connecting pipe 404 from the gas guide pipe body 403, and finally pass through the leak detector 405 for detection, so that it can be known in time whether there is a leakage at the connection position between the air inlet pipe port 11 and the delivery pipe 2 or the air outlet pipe port 13 and the delivery pipe 2, so that timely maintenance can be carried out and timely repairs can be made for the gas measurement work.

[0038] During maintenance, when it is necessary to disassemble and maintain the connection position between the air inlet pipe port 11 and the receiving pipe fitting 3 or the air outlet pipe port 13 and the receiving pipe fitting 3, in order to prevent the gas in the delivery pipe 2 from flowing out too much, this solution provides a simple sealing work through the regulating component provided above, that is, the regulating component includes a connecting ball 701, an extending protrusion 702, a sealing bearing 703, a connecting plug shaft 704, a regulating circular plate 705, an auxiliary handle bar 706 and a positioning structure; the connecting ball 701 is provided in the middle position of the receiving pipe fitting 3, and the connecting ball 701 is provided with a spherical inner cavity, the spherical inner cavity is connected to the receiving pipe fitting 3, an extending protrusion 702 is provided on the top of the connecting ball 701, and a sealing bearing 703 is embedded in the extending protrusion 702, and a connecting plug shaft 704 is inserted in the sealing bearing 703, and one end of the connecting plug shaft 704 extends to the connecting The spherical inner cavity of the sphere 701 is fixedly connected to the end of the connecting shaft 704 and the regulating circular plate 705, and the other end of the connecting shaft 704 is fixedly connected to the auxiliary handle bar 706, and the side wall of the regulating circular plate 705 is adapted to fit and contact with the inner wall of the spherical inner cavity; the positioning structure includes a connecting column head 801, a cylindrical through groove 802, a positioning column 803, an auxiliary handle head 804 and a positioning slot 805; the connecting column head 801 is fixedly set at one end of the auxiliary handle bar 706, and a cylindrical through groove 802 is provided in the connecting column head 801, and the cylindrical through groove 802 is adapted to be plugged into the positioning column 803, and an auxiliary handle head 804 is fixedly provided at one end of the positioning column 803, and the positioning slot 805 is arranged on the top surface of the extended protrusion 702, and the positioning slots 805 are equidistantly arranged in a ring shape, and one end of the positioning column 803 is adapted to be plugged into the positioning slot 805.

[0039] The auxiliary handle bar 706 is used to drive the connecting plug shaft 704 to rotate, and then drive the position of the regulating circular plate 705 to seal the receiving pipe 3, so as to avoid excessive outflow of gas in the delivery pipe 2 and waste of resources. The auxiliary handle bar 706 is positioned by the positioning plug 803 and the positioning slot 805, so as to ensure the stability of the position control of the regulating circular plate 705. The regulating circular plate 705 can also be used to provide a simple control auxiliary effect on the flow rate of the gas, that is, as the regulating circular plate 705 rotates, the flow of gas is simply controlled by the degree of blocking of the pipe opening connecting the receiving pipe 3 and the connecting sphere 701 by the regulating circular plate 705.

[0040] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent precision gas flow controller, comprising a controller body (1), a delivery pipe (2) and a receiving pipe fitting (3); an air inlet (11) is provided on one side of the bottom of the controller body (1), and an air outlet (13) is provided on the other side thereof; threaded connection caps (12) are provided at the pipe openings of both the air outlet (13) and the air inlet (11); and a threaded connection cap (12) is provided at the pipe opening of one end of the delivery pipe (2); Its characteristics are: External thread connectors (31) are symmetrically provided at both ends of the receiving pipe member (3), the external thread connectors (31) are threadedly connected to the threaded connection cap (12) in a compatible manner, and are stably connected via an auxiliary mechanism. A regulating assembly is provided in the middle of the receiving pipe member (3).

2. An intelligent precision gas flow controller according to claim 1, characterized in that: The auxiliary mechanism comprises an annular cavity (401), a receiving groove body (402), a gas guide tube body (403), an annular connecting pipe (404), a gas leak detector (405), an annular hanging groove body (406) and a fastening assembly; the annular cavity (401) is arranged on the outer side wall of the external threaded connector (31), the receiving groove body (402) is equidistantly arranged on the outer side wall of the external threaded connector (31), and one end of the receiving groove body (402) is connected to the annular cavity (401), and the gas guide tube body (403) is embedded in the receiving groove body (402).

3. The intelligent precision gas flow controller according to claim 2, characterized in that: The accommodating grooves (402) are arranged in an annular shape at equal intervals on the outer side wall of the external threaded connector (31), and the accommodating grooves (402) are arranged in a strip shape. One gas guide tube (403) is arranged in one accommodating groove (402).

4. The intelligent precision gas flow controller according to claim 2, characterized in that: One end of the gas flow guide tube (403) is fixedly arranged on the inner side of the annular connecting tube (404), and the two are connected. A gas leak detector (405) is arranged on the top of the annular connecting tube (404), and annular hanging grooves (406) are equidistantly arranged on the outer side wall of the annular connecting tube (404).

5. The intelligent precision gas flow controller according to claim 2, characterized in that: The fastening assembly comprises a connecting strip (501), an auxiliary card plate (502), a movable insertion cavity (503), a locking card (504), a round handle (505), an auxiliary spring (506), a connecting pull strip (507), a placement groove (508), a connecting hook (509) and a clamping structure; one end of the connecting strip (501) is fixedly provided with an auxiliary card plate (502), and the other end of the connecting strip (501) is provided with a movable insertion cavity (503), and the connecting strip (501) is fixedly provided with an auxiliary card plate (502). A locking card (504) is provided for movable insertion in the connecting bar (501), one end of the locking card (504) extends into the movable insertion cavity (503), the other end of the locking card (504) extends to the outside of the connecting bar (501), and a round handle (505) is fixedly provided at the end, and an auxiliary spring (506) is fixedly provided on the side of the round handle (505) connected to the locking card (504), and the other end of the auxiliary spring (506) is fixedly provided on the connecting bar (501).

6. The intelligent precision gas flow controller according to claim 5, characterized in that: The connecting strip (507) is adapted to be plugged into the movable inserting cavity (503), and a connecting hook (509) is fixedly provided at one end of the connecting strip (507), and the connecting hook (509) is adapted to be plugged into the annular hanging groove body (406).

7. The intelligent precision gas flow controller according to claim 5, characterized in that: A placement groove (508) is provided on the connecting pull bar (507), and a clamping structure is provided in the placement groove (508).

8. The intelligent precision gas flow controller according to claim 5, characterized in that: The clamping structure comprises a clamping block (601), an auxiliary inclined surface (602) and a clamping auxiliary ridge (603); the clamping block (601) is fixedly arranged in the placement groove (508) at equal intervals, and an auxiliary inclined surface (602) is arranged on one side of the clamping block (601); the auxiliary inclined surface (602) is fixedly arranged on the auxiliary inclined surface (602) at equal intervals, and the end cross-sectional shape of the clamping auxiliary ridge (603) is set to be tooth-shaped.

9. The intelligent precision gas flow controller according to claim 1, characterized in that: The regulating assembly comprises a connecting sphere (701), an extending convex body (702), a sealed bearing (703), a connecting plug shaft (704), a regulating circular plate (705), an auxiliary handle bar (706) and a positioning structure; the connecting sphere (701) is arranged in the middle position of the receiving tube (3), and the connecting sphere (701) is provided with a spherical inner cavity, which is connected to the receiving tube (3); the top of the connecting sphere (701) is provided with an extending convex body (702), and the extending convex body (705) is provided with a spherical inner cavity. 02) is embedded with a sealed bearing (703), and a connecting shaft (704) is inserted into the sealed bearing (703), one end of the connecting shaft (704) extends into the spherical inner cavity in the connecting sphere (701), and the end of the connecting shaft (704) is fixedly connected to the regulating circular plate (705), and the other end of the connecting shaft (704) is fixedly connected to the auxiliary handle bar (706), and the side wall of the regulating circular plate (705) is adapted to fit and contact with the inner wall of the spherical inner cavity.

10. The intelligent precision gas flow controller according to claim 9, characterized in that: The positioning structure comprises a connecting column head (801), a cylindrical through slot (802), a positioning plug column (803), an auxiliary handle head (804) and a positioning slot (805); the connecting column head (801) is fixedly arranged at one end of the auxiliary handle bar (706), and a cylindrical through slot (802) is provided in the connecting column head (801), the cylindrical through slot (802) and the positioning plug column (803) are adapted to be plugged in, one end of the positioning plug column (803) is fixedly provided with an auxiliary handle head (804), the positioning slot (805) is arranged on the top surface of the extended protrusion (702), and the positioning slots (805) are equidistantly arranged in a ring shape, and one end of the positioning plug column (803) is adapted to be plugged in the positioning slot (805).

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