Venturi valve control structure

Abstract

The utility model discloses a venturi valve control structure which comprises a valve body and a valve element arranged in the valve body, a valve rod used for driving and controlling the valve element is arranged in the valve body, and the venturi valve control structure further comprises a supporting assembly arranged in the valve body and used for supporting the valve rod and a driving assembly used for driving and controlling the valve rod. According to the venturi valve control structure and the venturi valve, when the venturi valve is used, the valve element is driven to move in the valve body through the driving assembly and the transmission assembly, control over opening and closing of the venturi valve is achieved through movement of the valve element, and in the process that the venturi valve is closed through movement of the valve element, the venturi valve is closed through the inflation assembly. The annular air bag expands and abuts against the inner wall of the valve body, the annular air bag is tightly attached to the inner wall of the valve body through the self-adaptability of abutting between the inflated annular air bag and the inner wall of the valve body, the sealing effect is guaranteed, and closing driving use of the Venturi valve is further facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of venturi valves, in particular to a venturi valve control structure. Background Art

[0002] When the Venturi valve is in use, the valve core is controlled and driven to open and close the Venturi valve. During the closing operation of the Venturi valve, the control valve core is abutted against the inner wall of the valve body, and the sealing during the closing process is performed by the sealing gasket on the valve core. However, with long-term use and irregular extrusion between the valve body and the valve core, the sealing gasket will be deformed and twisted, resulting in a gap between the control valve core and the valve body during closing, affecting the sealing effect of the Venturi valve.

[0003] Therefore, a venturi valve control structure is urgently needed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a venturi valve control structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a venturi valve control structure, comprising a valve body and a valve core arranged inside the valve body, a valve stem for driving and controlling the valve core arranged inside the valve body, a support assembly arranged inside the valve body for supporting the valve stem and a drive assembly for driving and controlling the valve stem, a sealing assembly for sealing the valve core during closing is arranged on the valve core;

[0006] The sealing component comprises an annular installation groove provided on the outer surface of the valve core, an annular airbag is installed inside the annular installation groove, and an inflation component for inflating the inside of the annular airbag is arranged on one side of the valve core.

[0007] The inflatable components are arranged in a plurality of groups in a circular array on one side of the valve core.

[0008] The inflation assembly includes a piston cylinder fixed on one side of the valve core, one end of the piston cylinder is connected to the interior of the annular airbag, a piston rod is slidably connected to the piston cylinder, a connecting spring for connecting the piston rod is arranged inside the piston cylinder, and a push plate for pushing against one end of the piston rod is fixed inside the valve body.

[0009] The driving assembly includes a support frame fixed to the outside of the valve body, the support frame is rotatably connected to a rotating shaft, a connecting rod is fixed to the rotating shaft, a first sliding groove is provided on the connecting rod, a transmission pin is slidably connected to the first sliding groove, a connecting plate is fixed to one end of the valve stem, one end of the transmission pin is fixed to the connecting plate, and a transmission assembly for transmitting the connecting rod is arranged on the outside of the valve body.

[0010] The transmission assembly includes a transmission plate, a driving member for driving the transmission plate to rise and fall is arranged on the outer side of the valve body, a second slide groove is opened on the transmission plate, a sliding pin is slidably connected to the second slide groove, and one end of the sliding pin is fixed to the connecting rod.

[0011] The support components are arranged in two groups inside the valve body.

[0012] The support assembly comprises a support ring sleeved on the outside of the valve stem, and a plurality of support plates for assisting the support ring in mounting support are arranged inside the support ring and the valve body.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model discloses a venturi valve control structure. When the venturi valve is in use, a driving component and a transmission component are used to drive the valve core to move inside the valve body. The movement of the valve core is used to control the opening and closing of the venturi valve. In the process of closing the venturi valve by moving the valve core, an annular airbag is expanded and pressed against the inner wall of the valve body through the inflation component. The annular airbag and the inner wall of the valve body are pressed against each other through the adaptability of the inflation annular airbag and the inner wall of the valve body, so that the annular airbag and the inner wall of the valve body are tightly fitted to ensure the sealing effect, which further facilitates the closed driving use of the venturi valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall appearance structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the drive assembly and the transmission assembly of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the sealing component and the inflation component of the utility model.

[0018] In the figure: 101, valve body; 102, valve core; 103, valve stem; 201, support ring; 202, support plate; 301, support frame; 302, rotating shaft; 303, connecting rod; 304, first slide groove; 305, transmission pin; 306, connecting plate; 401, driving member; 402, transmission plate; 403, second slide groove; 404, sliding pin; 501, annular mounting groove; 502, annular airbag; 601, piston cylinder; 602, piston rod; 603, push plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 The utility model provides a venturi valve control structure, including a valve body 101 and a valve core 102 arranged inside the valve body 101, a valve stem 103 for driving and controlling the valve core 102 is arranged inside the valve body 101, and also includes a support component arranged inside the valve body 101 for supporting the valve stem 103 and a drive component for driving and controlling the valve stem 103, and a sealing component for sealing the valve core 102 during the closing process is arranged on the valve core 102;

[0021] The sealing component includes an annular mounting groove 501 formed on the outer surface of the valve core 102, an annular airbag 502 is installed inside the annular mounting groove 501, and an inflation component for inflating the inside of the annular airbag 502 is provided on one side of the valve core 102;

[0022] It should be noted here that when the Venturi valve is in use, the valve core 102 is driven to move inside the valve body 101 through the driving component and the transmission component. The opening and closing of the Venturi valve is controlled by the movement of the valve core 102. In the process of closing the Venturi valve by moving the valve core 102, the annular airbag 502 is expanded and tightly pressed against the inner wall of the valve body 101 through the inflation component. The adaptability of the annular airbag 502 and the inner wall of the valve body 101 after inflation makes the annular airbag 502 fit tightly against the inner wall of the valve body 101, thereby ensuring the sealing effect and further facilitating the closed drive use of the Venturi valve.

[0023] A plurality of inflatable components are arranged in a circular array on one side of the valve core 102;

[0024] It should be noted here that the inflation effect is ensured by using multiple sets of inflation components.

[0025] The inflation assembly includes a piston cylinder 601 fixed to one side of the valve core 102, one end of the piston cylinder 601 is connected to the inside of the annular airbag 502, a piston rod 602 is slidably connected to the piston cylinder 601, a connecting spring for connecting the piston rod 602 is arranged inside the piston cylinder 601, and a push plate 603 for pushing against one end of the piston rod 602 is fixed inside the valve body 101;

[0026] It should be noted here that: in the process of closing the Venturi valve by moving the valve core 102, as the valve core 102 moves, the piston rod 602 at the front end of each piston cylinder 601 is abutted against the push plate 603, pushing the piston rod 602 to move toward the inside of the piston cylinder 601. During the movement of the piston rod 602, part of the gas inside the piston cylinder 601 is squeezed and transported to the inside of the annular airbag 502, thereby inflating the inside of the annular airbag 502.

[0027] The driving assembly includes a support frame 301 fixed to the outside of the valve body 101, the support frame 301 is rotatably connected to a rotating shaft 302, a connecting rod 303 is fixed to the rotating shaft 302, a first sliding groove 304 is provided on the connecting rod 303, a driving pin 305 is slidably connected to the first sliding groove 304, a connecting plate 306 is fixed to one end of the valve stem 103, one end of the driving pin 305 is fixed to the connecting plate 306, and a driving assembly for driving the connecting rod 303 is provided on the outside of the valve body 101;

[0028] It should be noted here that: during the rotation of the connecting rod 303, the connection transmission between the first slide groove 304 and the transmission pin 305 drives the connecting plate 306 and the valve stem 103 to be forced to move inside the valve body 101. During the movement of the valve stem 103, the valve core 102 is driven to move inside the valve body 101. Through the movement of the valve core 102, the opening and closing of the Venturi valve is controlled.

[0029] The transmission assembly includes a transmission plate 402. A driving member 401 for driving the transmission plate 402 to rise and fall is disposed on the outer side of the valve body 101. A second slide groove 403 is provided on the transmission plate 402. A sliding pin 404 is slidably connected to the second slide groove 403. One end of the sliding pin 404 is fixed to the connecting rod 303.

[0030] It should be noted here that: the driving member 401 drives the transmission plate 402 to move up and down. During the movement of the transmission plate 402 , the connecting rod 303 is forced to rotate on the support frame 301 through the connection and transmission between the second slide groove 403 and the sliding pin 404 .

[0031] Two groups of support components are provided inside the valve body 101;

[0032] It should be noted here that: the supporting effect of the valve stem 103 is ensured by two sets of supporting components.

[0033] The support assembly includes a support ring 201 sleeved on the outside of the valve stem 103, and multiple groups of support plates 202 for assisting the support ring 201 in mounting and supporting are arranged inside the support ring 201 and the valve body 101;

[0034] It should be noted here that the valve stem 103 is supported by the support ring 201 and the support plate 202, so that the valve stem 103 can be driven stably.

[0035] Working principle: When the Venturi valve is in use, the driving member 401 drives the transmission plate 402 to move up and down. During the process of the transmission plate 402 moving up and down, the connecting rod 303 is forced to rotate on the support frame 301 through the connection and transmission between the second slide groove 403 and the sliding pin 404;

[0036] During the rotation of the connecting rod 303, the first slide groove 304 and the driving pin 305 are connected to drive the connecting plate 306 and the valve stem 103 to move inside the valve body 101. During the movement of the valve stem 103, the valve core 102 is driven to move inside the valve body 101. Through the movement of the valve core 102, the opening and closing of the Venturi valve is controlled.

[0037] In the process of closing the Venturi valve by moving the valve core 102, as the valve core 102 moves, the piston rod 602 at the front end of each piston cylinder 601 is abutted against the push plate 603, pushing the piston rod 602 to move toward the inside of the piston cylinder 601. During the movement of the piston rod 602, part of the gas inside the piston cylinder 601 is squeezed and transported to the inside of the annular airbag 502, and the inside of the annular airbag 502 is inflated. Through the inflation effect, the annular airbag 502 expands and presses against the inner wall of the valve body 101. Through the adaptability of the annular airbag 502 and the inner wall of the valve body 101 after inflation, the annular airbag 502 is tightly fitted with the inner wall of the valve body 101, thereby ensuring the sealing effect and further facilitating the closed drive use of the Venturi valve.

[0038] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A venturi valve control structure, comprising: A valve body (101) and a valve core (102) arranged inside the valve body (101), wherein a valve stem (103) for driving and controlling the valve core (102) is arranged inside the valve body (101); It is characterized by further comprising: A support component for supporting the valve stem (103) and a drive component for driving and controlling the valve stem (103) are arranged inside the valve body (101); a sealing component for sealing the valve stem (102) during the closing process is arranged on the valve core (102); The sealing component comprises an annular mounting groove (501) provided on the outer surface of the valve core (102), an annular airbag (502) is installed inside the annular mounting groove (501), and an inflation component for inflating the inside of the annular airbag (502) is provided on one side of the valve core (102).

2. A Venturi valve control structure according to claim 1, characterized in that: The inflation components are arranged in a plurality of groups in a circular array on one side of the valve core (102).

3. A Venturi valve control structure according to claim 2, characterized in that: The inflation component includes a piston cylinder (601) fixed on one side of the valve core (102), one end of the piston cylinder (601) is arranged to communicate with the interior of the annular airbag (502), a piston rod (602) is slidably connected to the piston cylinder (601), a connecting spring for connecting to the piston rod (602) is arranged inside the piston cylinder (601), and a push plate (603) for pushing against one end of the piston rod (602) is fixed inside the valve body (101).

4. A Venturi valve control structure according to claim 1, characterized in that: The driving assembly comprises a support frame (301) fixed on the outer side of the valve body (101), the support frame (301) is rotatably connected to a rotating shaft (302), a connecting rod (303) is fixed to the rotating shaft (302), a first sliding groove (304) is provided on the connecting rod (303), a transmission pin (305) is slidably connected to the first sliding groove (304), a connecting plate (306) is fixed to one end of the valve stem (103), one end of the transmission pin (305) is fixed to the connecting plate (306), and a transmission assembly for transmitting the connecting rod (303) is provided on the outer side of the valve body (101).

5. A Venturi valve control structure according to claim 4, characterized in that: The transmission assembly comprises a transmission plate (402), and a driving member (401) for driving the transmission plate (402) to rise and fall is arranged on the outer side of the valve body (101), and a second sliding groove (403) is opened on the transmission plate (402), and a sliding pin (404) is slidably connected to the second sliding groove (403), and one end of the sliding pin (404) is fixed to the connecting rod (303).

6. A Venturi valve control structure according to claim 1, characterized in that: Two groups of the support components are arranged inside the valve body (101).

7. A Venturi valve control structure according to claim 6, characterized in that: The support assembly comprises a support ring (201) sleeved on the outside of the valve stem (103), and a plurality of support plates (202) for assisting the support ring (201) in mounting and supporting are arranged inside the support ring (201) and the valve body (101).

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